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1
/*
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 * H.26L/H.264/AVC/JVT/14496-10/... encoder/decoder
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 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
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 *
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 * This library is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2 of the License, or (at your option) any later version.
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 *
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 * This library is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with this library; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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 *
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 */
20
 
21
/**
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 * @file h264.c
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 * H.264 / AVC / MPEG4 part10 codec.
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 * @author Michael Niedermayer <michaelni@gmx.at>
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 */
26

    
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#include "common.h"
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#include "dsputil.h"
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#include "avcodec.h"
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#include "mpegvideo.h"
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#include "h264data.h"
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#include "golomb.h"
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#include "cabac.h"
35

    
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#undef NDEBUG
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#include <assert.h>
38

    
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#define interlaced_dct interlaced_dct_is_a_bad_name
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#define mb_intra mb_intra_isnt_initalized_see_mb_type
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#define LUMA_DC_BLOCK_INDEX   25
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#define CHROMA_DC_BLOCK_INDEX 26
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#define CHROMA_DC_COEFF_TOKEN_VLC_BITS 8
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#define COEFF_TOKEN_VLC_BITS           8
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#define TOTAL_ZEROS_VLC_BITS           9
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#define CHROMA_DC_TOTAL_ZEROS_VLC_BITS 3
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#define RUN_VLC_BITS                   3
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#define RUN7_VLC_BITS                  6
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#define MAX_SPS_COUNT 32
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#define MAX_PPS_COUNT 256
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#define MAX_MMCO_COUNT 66
56

    
57
/**
58
 * Sequence parameter set
59
 */
60
typedef struct SPS{
61
    
62
    int profile_idc;
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    int level_idc;
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    int log2_max_frame_num;            ///< log2_max_frame_num_minus4 + 4
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    int poc_type;                      ///< pic_order_cnt_type
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    int log2_max_poc_lsb;              ///< log2_max_pic_order_cnt_lsb_minus4
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    int delta_pic_order_always_zero_flag;
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    int offset_for_non_ref_pic;
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    int offset_for_top_to_bottom_field;
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    int poc_cycle_length;              ///< num_ref_frames_in_pic_order_cnt_cycle
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    int ref_frame_count;               ///< num_ref_frames
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    int gaps_in_frame_num_allowed_flag;
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    int mb_width;                      ///< frame_width_in_mbs_minus1 + 1
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    int mb_height;                     ///< frame_height_in_mbs_minus1 + 1
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    int frame_mbs_only_flag;
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    int mb_aff;                        ///<mb_adaptive_frame_field_flag
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    int direct_8x8_inference_flag;
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    int crop;                   ///< frame_cropping_flag
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    int crop_left;              ///< frame_cropping_rect_left_offset
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    int crop_right;             ///< frame_cropping_rect_right_offset
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    int crop_top;               ///< frame_cropping_rect_top_offset
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    int crop_bottom;            ///< frame_cropping_rect_bottom_offset
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    int vui_parameters_present_flag;
84
    AVRational sar;
85
    int timing_info_present_flag;
86
    uint32_t num_units_in_tick;
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    uint32_t time_scale;
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    int fixed_frame_rate_flag;
89
    short offset_for_ref_frame[256]; //FIXME dyn aloc?
90
}SPS;
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92
/**
93
 * Picture parameter set
94
 */
95
typedef struct PPS{
96
    int sps_id;
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    int cabac;                  ///< entropy_coding_mode_flag
98
    int pic_order_present;      ///< pic_order_present_flag
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    int slice_group_count;      ///< num_slice_groups_minus1 + 1
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    int mb_slice_group_map_type;
101
    int ref_count[2];           ///< num_ref_idx_l0/1_active_minus1 + 1
102
    int weighted_pred;          ///< weighted_pred_flag
103
    int weighted_bipred_idc;
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    int init_qp;                ///< pic_init_qp_minus26 + 26
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    int init_qs;                ///< pic_init_qs_minus26 + 26
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    int chroma_qp_index_offset;
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    int deblocking_filter_parameters_present; ///< deblocking_filter_parameters_present_flag
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    int constrained_intra_pred; ///< constrained_intra_pred_flag
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    int redundant_pic_cnt_present; ///< redundant_pic_cnt_present_flag
110
}PPS;
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112
/**
113
 * Memory management control operation opcode.
114
 */
115
typedef enum MMCOOpcode{
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    MMCO_END=0,
117
    MMCO_SHORT2UNUSED,
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    MMCO_LONG2UNUSED,
119
    MMCO_SHORT2LONG,
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    MMCO_SET_MAX_LONG,
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    MMCO_RESET, 
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    MMCO_LONG,
123
} MMCOOpcode;
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125
/**
126
 * Memory management control operation.
127
 */
128
typedef struct MMCO{
129
    MMCOOpcode opcode;
130
    int short_frame_num;
131
    int long_index;
132
} MMCO;
133

    
134
/**
135
 * H264Context
136
 */
137
typedef struct H264Context{
138
    MpegEncContext s;
139
    int nal_ref_idc;        
140
    int nal_unit_type;
141
#define NAL_SLICE                1
142
#define NAL_DPA                        2
143
#define NAL_DPB                        3
144
#define NAL_DPC                        4
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#define NAL_IDR_SLICE                5
146
#define NAL_SEI                        6
147
#define NAL_SPS                        7
148
#define NAL_PPS                        8
149
#define NAL_PICTURE_DELIMITER        9
150
#define NAL_FILTER_DATA                10
151
    uint8_t *rbsp_buffer;
152
    int rbsp_buffer_size;
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154
    /**
155
      * Used to parse AVC variant of h264
156
      */
157
    int is_avc; ///< this flag is != 0 if codec is avc1
158
    int got_avcC; ///< flag used to parse avcC data only once
159
    int nal_length_size; ///< Number of bytes used for nal length (1, 2 or 4)
160

    
161
    int chroma_qp; //QPc
162

    
163
    int prev_mb_skiped; //FIXME remove (IMHO not used)
164

    
165
    //prediction stuff
166
    int chroma_pred_mode;
167
    int intra16x16_pred_mode;
168
    
169
    int8_t intra4x4_pred_mode_cache[5*8];
170
    int8_t (*intra4x4_pred_mode)[8];
171
    void (*pred4x4  [9+3])(uint8_t *src, uint8_t *topright, int stride);//FIXME move to dsp?
172
    void (*pred8x8  [4+3])(uint8_t *src, int stride);
173
    void (*pred16x16[4+3])(uint8_t *src, int stride);
174
    unsigned int topleft_samples_available;
175
    unsigned int top_samples_available;
176
    unsigned int topright_samples_available;
177
    unsigned int left_samples_available;
178
    uint8_t (*top_border)[16+2*8];
179
    uint8_t left_border[17+2*9];
180

    
181
    /**
182
     * non zero coeff count cache.
183
     * is 64 if not available.
184
     */
185
    uint8_t non_zero_count_cache[6*8];
186
    uint8_t (*non_zero_count)[16];
187

    
188
    /**
189
     * Motion vector cache.
190
     */
191
    int16_t mv_cache[2][5*8][2];
192
    int8_t ref_cache[2][5*8];
193
#define LIST_NOT_USED -1 //FIXME rename?
194
#define PART_NOT_AVAILABLE -2
195
    
196
    /**
197
     * is 1 if the specific list MV&references are set to 0,0,-2.
198
     */
199
    int mv_cache_clean[2];
200

    
201
    int block_offset[16+8];
202
    int chroma_subblock_offset[16]; //FIXME remove
203
    
204
    uint16_t *mb2b_xy; //FIXME are these 4 a good idea?
205
    uint16_t *mb2b8_xy;
206
    int b_stride;
207
    int b8_stride;
208

    
209
    int halfpel_flag;
210
    int thirdpel_flag;
211

    
212
    int unknown_svq3_flag;
213
    int next_slice_index;
214

    
215
    SPS sps_buffer[MAX_SPS_COUNT];
216
    SPS sps; ///< current sps
217
    
218
    PPS pps_buffer[MAX_PPS_COUNT];
219
    /**
220
     * current pps
221
     */
222
    PPS pps; //FIXME move tp Picture perhaps? (->no) do we need that?
223

    
224
    int slice_num;
225
    uint8_t *slice_table_base;
226
    uint8_t *slice_table;      ///< slice_table_base + mb_stride + 1
227
    int slice_type;
228
    int slice_type_fixed;
229
    
230
    //interlacing specific flags
231
    int mb_field_decoding_flag;
232
    
233
    int sub_mb_type[4];
234
    
235
    //POC stuff
236
    int poc_lsb;
237
    int poc_msb;
238
    int delta_poc_bottom;
239
    int delta_poc[2];
240
    int frame_num;
241
    int prev_poc_msb;             ///< poc_msb of the last reference pic for POC type 0
242
    int prev_poc_lsb;             ///< poc_lsb of the last reference pic for POC type 0
243
    int frame_num_offset;         ///< for POC type 2
244
    int prev_frame_num_offset;    ///< for POC type 2
245
    int prev_frame_num;           ///< frame_num of the last pic for POC type 1/2
246

    
247
    /**
248
     * frame_num for frames or 2*frame_num for field pics.
249
     */
250
    int curr_pic_num;
251
    
252
    /**
253
     * max_frame_num or 2*max_frame_num for field pics.
254
     */
255
    int max_pic_num;
256

    
257
    //Weighted pred stuff
258
    int luma_log2_weight_denom;
259
    int chroma_log2_weight_denom;
260
    int luma_weight[2][16];
261
    int luma_offset[2][16];
262
    int chroma_weight[2][16][2];
263
    int chroma_offset[2][16][2];
264
   
265
    //deblock
266
    int deblocking_filter;         ///< disable_deblocking_filter_idc with 1<->0 
267
    int slice_alpha_c0_offset;
268
    int slice_beta_offset;
269
     
270
    int redundant_pic_count;
271
    
272
    int direct_spatial_mv_pred;
273

    
274
    /**
275
     * num_ref_idx_l0/1_active_minus1 + 1
276
     */
277
    int ref_count[2];// FIXME split for AFF
278
    Picture *short_ref[16];
279
    Picture *long_ref[16];
280
    Picture default_ref_list[2][32];
281
    Picture ref_list[2][32]; //FIXME size?
282
    Picture field_ref_list[2][32]; //FIXME size?
283
    
284
    /**
285
     * memory management control operations buffer.
286
     */
287
    MMCO mmco[MAX_MMCO_COUNT];
288
    int mmco_index;
289
    
290
    int long_ref_count;  ///< number of actual long term references
291
    int short_ref_count; ///< number of actual short term references
292
    
293
    //data partitioning
294
    GetBitContext intra_gb;
295
    GetBitContext inter_gb;
296
    GetBitContext *intra_gb_ptr;
297
    GetBitContext *inter_gb_ptr;
298
    
299
    DCTELEM mb[16*24] __align8;
300

    
301
    /**
302
     * Cabac
303
     */
304
    CABACContext cabac;
305
    uint8_t      cabac_state[399];
306
    int          cabac_init_idc;
307

    
308
    /* 0x100 -> non null luma_dc, 0x80/0x40 -> non null chroma_dc (cb/cr), 0x?0 -> chroma_cbp(0,1,2), 0x0? luma_cbp */
309
    uint16_t     *cbp_table;
310
    int top_cbp;
311
    int left_cbp;
312
    /* chroma_pred_mode for i4x4 or i16x16, else 0 */
313
    uint8_t     *chroma_pred_mode_table;
314
    int         last_qscale_diff;
315
    int16_t     (*mvd_table[2])[2];
316
    int16_t     mvd_cache[2][5*8][2];
317

    
318
}H264Context;
319

    
320
static VLC coeff_token_vlc[4];
321
static VLC chroma_dc_coeff_token_vlc;
322

    
323
static VLC total_zeros_vlc[15];
324
static VLC chroma_dc_total_zeros_vlc[3];
325

    
326
static VLC run_vlc[6];
327
static VLC run7_vlc;
328

    
329
static void svq3_luma_dc_dequant_idct_c(DCTELEM *block, int qp);
330
static void svq3_add_idct_c(uint8_t *dst, DCTELEM *block, int stride, int qp, int dc);
331
static void filter_mb( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr);
332

    
333
static inline uint32_t pack16to32(int a, int b){
334
#ifdef WORDS_BIGENDIAN
335
   return (b&0xFFFF) + (a<<16);
336
#else
337
   return (a&0xFFFF) + (b<<16);
338
#endif
339
}
340

    
341
/**
342
 * fill a rectangle.
343
 * @param h height of the recatangle, should be a constant
344
 * @param w width of the recatangle, should be a constant
345
 * @param size the size of val (1 or 4), should be a constant
346
 */
347
static inline void fill_rectangle(void *vp, int w, int h, int stride, uint32_t val, int size){ //FIXME ensure this IS inlined
348
    uint8_t *p= (uint8_t*)vp;
349
    assert(size==1 || size==4);
350
    
351
    w      *= size;
352
    stride *= size;
353
    
354
//FIXME check what gcc generates for 64 bit on x86 and possible write a 32 bit ver of it
355
    if(w==2 && h==2){
356
        *(uint16_t*)(p + 0)=
357
        *(uint16_t*)(p + stride)= size==4 ? val : val*0x0101;
358
    }else if(w==2 && h==4){
359
        *(uint16_t*)(p + 0*stride)=
360
        *(uint16_t*)(p + 1*stride)=
361
        *(uint16_t*)(p + 2*stride)=
362
        *(uint16_t*)(p + 3*stride)= size==4 ? val : val*0x0101;
363
    }else if(w==4 && h==1){
364
        *(uint32_t*)(p + 0*stride)= size==4 ? val : val*0x01010101;
365
    }else if(w==4 && h==2){
366
        *(uint32_t*)(p + 0*stride)=
367
        *(uint32_t*)(p + 1*stride)= size==4 ? val : val*0x01010101;
368
    }else if(w==4 && h==4){
369
        *(uint32_t*)(p + 0*stride)=
370
        *(uint32_t*)(p + 1*stride)=
371
        *(uint32_t*)(p + 2*stride)=
372
        *(uint32_t*)(p + 3*stride)= size==4 ? val : val*0x01010101;
373
    }else if(w==8 && h==1){
374
        *(uint32_t*)(p + 0)=
375
        *(uint32_t*)(p + 4)= size==4 ? val : val*0x01010101;
376
    }else if(w==8 && h==2){
377
        *(uint32_t*)(p + 0 + 0*stride)=
378
        *(uint32_t*)(p + 4 + 0*stride)=
379
        *(uint32_t*)(p + 0 + 1*stride)=
380
        *(uint32_t*)(p + 4 + 1*stride)=  size==4 ? val : val*0x01010101;
381
    }else if(w==8 && h==4){
382
        *(uint64_t*)(p + 0*stride)=
383
        *(uint64_t*)(p + 1*stride)=
384
        *(uint64_t*)(p + 2*stride)=
385
        *(uint64_t*)(p + 3*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL;
386
    }else if(w==16 && h==2){
387
        *(uint64_t*)(p + 0+0*stride)=
388
        *(uint64_t*)(p + 8+0*stride)=
389
        *(uint64_t*)(p + 0+1*stride)=
390
        *(uint64_t*)(p + 8+1*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL;
391
    }else if(w==16 && h==4){
392
        *(uint64_t*)(p + 0+0*stride)=
393
        *(uint64_t*)(p + 8+0*stride)=
394
        *(uint64_t*)(p + 0+1*stride)=
395
        *(uint64_t*)(p + 8+1*stride)=
396
        *(uint64_t*)(p + 0+2*stride)=
397
        *(uint64_t*)(p + 8+2*stride)=
398
        *(uint64_t*)(p + 0+3*stride)=
399
        *(uint64_t*)(p + 8+3*stride)= size==4 ? val*0x0100000001ULL : val*0x0101010101010101ULL;
400
    }else
401
        assert(0);
402
}
403

    
404
static inline void fill_caches(H264Context *h, int mb_type){
405
    MpegEncContext * const s = &h->s;
406
    const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
407
    int topleft_xy, top_xy, topright_xy, left_xy[2];
408
    int topleft_type, top_type, topright_type, left_type[2];
409
    int left_block[4];
410
    int i;
411

    
412
    //wow what a mess, why didnt they simplify the interlacing&intra stuff, i cant imagine that these complex rules are worth it 
413
    
414
    if(h->sps.mb_aff){
415
    //FIXME
416
        topleft_xy = 0; /* avoid warning */
417
        top_xy = 0; /* avoid warning */
418
        topright_xy = 0; /* avoid warning */
419
    }else{
420
        topleft_xy = mb_xy-1 - s->mb_stride;
421
        top_xy     = mb_xy   - s->mb_stride;
422
        topright_xy= mb_xy+1 - s->mb_stride;
423
        left_xy[0]   = mb_xy-1;
424
        left_xy[1]   = mb_xy-1;
425
        left_block[0]= 0;
426
        left_block[1]= 1;
427
        left_block[2]= 2;
428
        left_block[3]= 3;
429
    }
430

    
431
    topleft_type = h->slice_table[topleft_xy ] == h->slice_num ? s->current_picture.mb_type[topleft_xy] : 0;
432
    top_type     = h->slice_table[top_xy     ] == h->slice_num ? s->current_picture.mb_type[top_xy]     : 0;
433
    topright_type= h->slice_table[topright_xy] == h->slice_num ? s->current_picture.mb_type[topright_xy]: 0;
434
    left_type[0] = h->slice_table[left_xy[0] ] == h->slice_num ? s->current_picture.mb_type[left_xy[0]] : 0;
435
    left_type[1] = h->slice_table[left_xy[1] ] == h->slice_num ? s->current_picture.mb_type[left_xy[1]] : 0;
436

    
437
    if(IS_INTRA(mb_type)){
438
        h->topleft_samples_available= 
439
        h->top_samples_available= 
440
        h->left_samples_available= 0xFFFF;
441
        h->topright_samples_available= 0xEEEA;
442

    
443
        if(!IS_INTRA(top_type) && (top_type==0 || h->pps.constrained_intra_pred)){
444
            h->topleft_samples_available= 0xB3FF;
445
            h->top_samples_available= 0x33FF;
446
            h->topright_samples_available= 0x26EA;
447
        }
448
        for(i=0; i<2; i++){
449
            if(!IS_INTRA(left_type[i]) && (left_type[i]==0 || h->pps.constrained_intra_pred)){
450
                h->topleft_samples_available&= 0xDF5F;
451
                h->left_samples_available&= 0x5F5F;
452
            }
453
        }
454
        
455
        if(!IS_INTRA(topleft_type) && (topleft_type==0 || h->pps.constrained_intra_pred))
456
            h->topleft_samples_available&= 0x7FFF;
457
        
458
        if(!IS_INTRA(topright_type) && (topright_type==0 || h->pps.constrained_intra_pred))
459
            h->topright_samples_available&= 0xFBFF;
460
    
461
        if(IS_INTRA4x4(mb_type)){
462
            if(IS_INTRA4x4(top_type)){
463
                h->intra4x4_pred_mode_cache[4+8*0]= h->intra4x4_pred_mode[top_xy][4];
464
                h->intra4x4_pred_mode_cache[5+8*0]= h->intra4x4_pred_mode[top_xy][5];
465
                h->intra4x4_pred_mode_cache[6+8*0]= h->intra4x4_pred_mode[top_xy][6];
466
                h->intra4x4_pred_mode_cache[7+8*0]= h->intra4x4_pred_mode[top_xy][3];
467
            }else{
468
                int pred;
469
                if(IS_INTRA16x16(top_type) || (IS_INTER(top_type) && !h->pps.constrained_intra_pred))
470
                    pred= 2;
471
                else{
472
                    pred= -1;
473
                }
474
                h->intra4x4_pred_mode_cache[4+8*0]=
475
                h->intra4x4_pred_mode_cache[5+8*0]=
476
                h->intra4x4_pred_mode_cache[6+8*0]=
477
                h->intra4x4_pred_mode_cache[7+8*0]= pred;
478
            }
479
            for(i=0; i<2; i++){
480
                if(IS_INTRA4x4(left_type[i])){
481
                    h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[0+2*i]];
482
                    h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[1+2*i]];
483
                }else{
484
                    int pred;
485
                    if(IS_INTRA16x16(left_type[i]) || (IS_INTER(left_type[i]) && !h->pps.constrained_intra_pred))
486
                        pred= 2;
487
                    else{
488
                        pred= -1;
489
                    }
490
                    h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]=
491
                    h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= pred;
492
                }
493
            }
494
        }
495
    }
496
    
497
    
498
/*
499
0 . T T. T T T T 
500
1 L . .L . . . . 
501
2 L . .L . . . . 
502
3 . T TL . . . . 
503
4 L . .L . . . . 
504
5 L . .. . . . . 
505
*/
506
//FIXME constraint_intra_pred & partitioning & nnz (lets hope this is just a typo in the spec)
507
    if(top_type){
508
        h->non_zero_count_cache[4+8*0]= h->non_zero_count[top_xy][0];
509
        h->non_zero_count_cache[5+8*0]= h->non_zero_count[top_xy][1];
510
        h->non_zero_count_cache[6+8*0]= h->non_zero_count[top_xy][2];
511
        h->non_zero_count_cache[7+8*0]= h->non_zero_count[top_xy][3];
512
    
513
        h->non_zero_count_cache[1+8*0]= h->non_zero_count[top_xy][7];
514
        h->non_zero_count_cache[2+8*0]= h->non_zero_count[top_xy][8];
515
    
516
        h->non_zero_count_cache[1+8*3]= h->non_zero_count[top_xy][10];
517
        h->non_zero_count_cache[2+8*3]= h->non_zero_count[top_xy][11];
518
        
519
        h->top_cbp= h->cbp_table[top_xy];
520
    }else{
521
        h->non_zero_count_cache[4+8*0]=      
522
        h->non_zero_count_cache[5+8*0]=
523
        h->non_zero_count_cache[6+8*0]=
524
        h->non_zero_count_cache[7+8*0]=
525
    
526
        h->non_zero_count_cache[1+8*0]=
527
        h->non_zero_count_cache[2+8*0]=
528
    
529
        h->non_zero_count_cache[1+8*3]=
530
        h->non_zero_count_cache[2+8*3]= h->pps.cabac && !IS_INTRA(mb_type) ? 0 : 64;
531
        
532
        if(IS_INTRA(mb_type)) h->top_cbp= 0x1C0;
533
        else                  h->top_cbp= 0;
534
    }
535
    
536
    if(left_type[0]){
537
        h->non_zero_count_cache[3+8*1]= h->non_zero_count[left_xy[0]][6];
538
        h->non_zero_count_cache[3+8*2]= h->non_zero_count[left_xy[0]][5];
539
        h->non_zero_count_cache[0+8*1]= h->non_zero_count[left_xy[0]][9]; //FIXME left_block
540
        h->non_zero_count_cache[0+8*4]= h->non_zero_count[left_xy[0]][12];
541
        h->left_cbp= h->cbp_table[left_xy[0]]; //FIXME interlacing
542
    }else{
543
        h->non_zero_count_cache[3+8*1]= 
544
        h->non_zero_count_cache[3+8*2]= 
545
        h->non_zero_count_cache[0+8*1]= 
546
        h->non_zero_count_cache[0+8*4]= h->pps.cabac && !IS_INTRA(mb_type) ? 0 : 64;
547
        
548
        if(IS_INTRA(mb_type)) h->left_cbp= 0x1C0;//FIXME interlacing
549
        else                  h->left_cbp= 0;
550
    }
551
    
552
    if(left_type[1]){
553
        h->non_zero_count_cache[3+8*3]= h->non_zero_count[left_xy[1]][4];
554
        h->non_zero_count_cache[3+8*4]= h->non_zero_count[left_xy[1]][3];
555
        h->non_zero_count_cache[0+8*2]= h->non_zero_count[left_xy[1]][8];
556
        h->non_zero_count_cache[0+8*5]= h->non_zero_count[left_xy[1]][11];
557
    }else{
558
        h->non_zero_count_cache[3+8*3]= 
559
        h->non_zero_count_cache[3+8*4]= 
560
        h->non_zero_count_cache[0+8*2]= 
561
        h->non_zero_count_cache[0+8*5]= h->pps.cabac && !IS_INTRA(mb_type) ? 0 : 64;
562
    }
563
    
564
#if 1
565
    if(IS_INTER(mb_type)){
566
        int list;
567
        for(list=0; list<2; list++){
568
            if((!IS_8X8(mb_type)) && !USES_LIST(mb_type, list)){
569
                /*if(!h->mv_cache_clean[list]){
570
                    memset(h->mv_cache [list],  0, 8*5*2*sizeof(int16_t)); //FIXME clean only input? clean at all?
571
                    memset(h->ref_cache[list], PART_NOT_AVAILABLE, 8*5*sizeof(int8_t));
572
                    h->mv_cache_clean[list]= 1;
573
                }*/
574
                continue; //FIXME direct mode ...
575
            }
576
            h->mv_cache_clean[list]= 0;
577
            
578
            if(IS_INTER(topleft_type)){
579
                const int b_xy = h->mb2b_xy[topleft_xy] + 3 + 3*h->b_stride;
580
                const int b8_xy= h->mb2b8_xy[topleft_xy] + 1 + h->b8_stride;
581
                *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];
582
                h->ref_cache[list][scan8[0] - 1 - 1*8]= s->current_picture.ref_index[list][b8_xy];
583
            }else{
584
                *(uint32_t*)h->mv_cache[list][scan8[0] - 1 - 1*8]= 0;
585
                h->ref_cache[list][scan8[0] - 1 - 1*8]= topleft_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
586
            }
587
            
588
            if(IS_INTER(top_type)){
589
                const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
590
                const int b8_xy= h->mb2b8_xy[top_xy] + h->b8_stride;
591
                *(uint32_t*)h->mv_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 0];
592
                *(uint32_t*)h->mv_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 1];
593
                *(uint32_t*)h->mv_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 2];
594
                *(uint32_t*)h->mv_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + 3];
595
                h->ref_cache[list][scan8[0] + 0 - 1*8]=
596
                h->ref_cache[list][scan8[0] + 1 - 1*8]= s->current_picture.ref_index[list][b8_xy + 0];
597
                h->ref_cache[list][scan8[0] + 2 - 1*8]=
598
                h->ref_cache[list][scan8[0] + 3 - 1*8]= s->current_picture.ref_index[list][b8_xy + 1];
599
            }else{
600
                *(uint32_t*)h->mv_cache [list][scan8[0] + 0 - 1*8]= 
601
                *(uint32_t*)h->mv_cache [list][scan8[0] + 1 - 1*8]= 
602
                *(uint32_t*)h->mv_cache [list][scan8[0] + 2 - 1*8]= 
603
                *(uint32_t*)h->mv_cache [list][scan8[0] + 3 - 1*8]= 0;
604
                *(uint32_t*)&h->ref_cache[list][scan8[0] + 0 - 1*8]= ((top_type ? LIST_NOT_USED : PART_NOT_AVAILABLE)&0xFF)*0x01010101;
605
            }
606

    
607
            if(IS_INTER(topright_type)){
608
                const int b_xy= h->mb2b_xy[topright_xy] + 3*h->b_stride;
609
                const int b8_xy= h->mb2b8_xy[topright_xy] + h->b8_stride;
610
                *(uint32_t*)h->mv_cache[list][scan8[0] + 4 - 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy];
611
                h->ref_cache[list][scan8[0] + 4 - 1*8]= s->current_picture.ref_index[list][b8_xy];
612
            }else{
613
                *(uint32_t*)h->mv_cache [list][scan8[0] + 4 - 1*8]= 0;
614
                h->ref_cache[list][scan8[0] + 4 - 1*8]= topright_type ? LIST_NOT_USED : PART_NOT_AVAILABLE;
615
            }
616
            
617
            //FIXME unify cleanup or sth
618
            if(IS_INTER(left_type[0])){
619
                const int b_xy= h->mb2b_xy[left_xy[0]] + 3;
620
                const int b8_xy= h->mb2b8_xy[left_xy[0]] + 1;
621
                *(uint32_t*)h->mv_cache[list][scan8[0] - 1 + 0*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[0]];
622
                *(uint32_t*)h->mv_cache[list][scan8[0] - 1 + 1*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[1]];
623
                h->ref_cache[list][scan8[0] - 1 + 0*8]= 
624
                h->ref_cache[list][scan8[0] - 1 + 1*8]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[0]>>1)];
625
            }else{
626
                *(uint32_t*)h->mv_cache [list][scan8[0] - 1 + 0*8]=
627
                *(uint32_t*)h->mv_cache [list][scan8[0] - 1 + 1*8]= 0;
628
                h->ref_cache[list][scan8[0] - 1 + 0*8]=
629
                h->ref_cache[list][scan8[0] - 1 + 1*8]= left_type[0] ? LIST_NOT_USED : PART_NOT_AVAILABLE;
630
            }
631
            
632
            if(IS_INTER(left_type[1])){
633
                const int b_xy= h->mb2b_xy[left_xy[1]] + 3;
634
                const int b8_xy= h->mb2b8_xy[left_xy[1]] + 1;
635
                *(uint32_t*)h->mv_cache[list][scan8[0] - 1 + 2*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[2]];
636
                *(uint32_t*)h->mv_cache[list][scan8[0] - 1 + 3*8]= *(uint32_t*)s->current_picture.motion_val[list][b_xy + h->b_stride*left_block[3]];
637
                h->ref_cache[list][scan8[0] - 1 + 2*8]= 
638
                h->ref_cache[list][scan8[0] - 1 + 3*8]= s->current_picture.ref_index[list][b8_xy + h->b8_stride*(left_block[2]>>1)];
639
            }else{
640
                *(uint32_t*)h->mv_cache [list][scan8[0] - 1 + 2*8]=
641
                *(uint32_t*)h->mv_cache [list][scan8[0] - 1 + 3*8]= 0;
642
                h->ref_cache[list][scan8[0] - 1 + 2*8]=
643
                h->ref_cache[list][scan8[0] - 1 + 3*8]= left_type[0] ? LIST_NOT_USED : PART_NOT_AVAILABLE;
644
            }
645

    
646
            h->ref_cache[list][scan8[5 ]+1] = 
647
            h->ref_cache[list][scan8[7 ]+1] = 
648
            h->ref_cache[list][scan8[13]+1] =  //FIXME remove past 3 (init somewher else)
649
            h->ref_cache[list][scan8[4 ]] = 
650
            h->ref_cache[list][scan8[12]] = PART_NOT_AVAILABLE;
651
            *(uint32_t*)h->mv_cache [list][scan8[5 ]+1]=
652
            *(uint32_t*)h->mv_cache [list][scan8[7 ]+1]=
653
            *(uint32_t*)h->mv_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewher else)
654
            *(uint32_t*)h->mv_cache [list][scan8[4 ]]=
655
            *(uint32_t*)h->mv_cache [list][scan8[12]]= 0;
656

    
657
            if( h->pps.cabac ) {
658
                /* XXX beurk, Load mvd */
659
                if(IS_INTER(topleft_type)){
660
                    const int b_xy = h->mb2b_xy[topleft_xy] + 3 + 3*h->b_stride;
661
                    *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy];
662
                }else{
663
                    *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 - 1*8]= 0;
664
                }
665

    
666
                if(IS_INTER(top_type)){
667
                    const int b_xy= h->mb2b_xy[top_xy] + 3*h->b_stride;
668
                    *(uint32_t*)h->mvd_cache[list][scan8[0] + 0 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 0];
669
                    *(uint32_t*)h->mvd_cache[list][scan8[0] + 1 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 1];
670
                    *(uint32_t*)h->mvd_cache[list][scan8[0] + 2 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 2];
671
                    *(uint32_t*)h->mvd_cache[list][scan8[0] + 3 - 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + 3];
672
                }else{
673
                    *(uint32_t*)h->mvd_cache [list][scan8[0] + 0 - 1*8]= 
674
                    *(uint32_t*)h->mvd_cache [list][scan8[0] + 1 - 1*8]= 
675
                    *(uint32_t*)h->mvd_cache [list][scan8[0] + 2 - 1*8]= 
676
                    *(uint32_t*)h->mvd_cache [list][scan8[0] + 3 - 1*8]= 0;
677
                }
678
                if(IS_INTER(left_type[0])){
679
                    const int b_xy= h->mb2b_xy[left_xy[0]] + 3;
680
                    *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 0*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[0]];
681
                    *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 1*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[1]];
682
                }else{
683
                    *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 0*8]=
684
                    *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 1*8]= 0;
685
                }
686
                if(IS_INTER(left_type[1])){
687
                    const int b_xy= h->mb2b_xy[left_xy[1]] + 3;
688
                    *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 2*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[2]];
689
                    *(uint32_t*)h->mvd_cache[list][scan8[0] - 1 + 3*8]= *(uint32_t*)h->mvd_table[list][b_xy + h->b_stride*left_block[3]];
690
                }else{
691
                    *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 2*8]=
692
                    *(uint32_t*)h->mvd_cache [list][scan8[0] - 1 + 3*8]= 0;
693
                }
694
                *(uint32_t*)h->mvd_cache [list][scan8[5 ]+1]=
695
                *(uint32_t*)h->mvd_cache [list][scan8[7 ]+1]=
696
                *(uint32_t*)h->mvd_cache [list][scan8[13]+1]= //FIXME remove past 3 (init somewher else)
697
                *(uint32_t*)h->mvd_cache [list][scan8[4 ]]=
698
                *(uint32_t*)h->mvd_cache [list][scan8[12]]= 0;
699
            }
700
        }
701
//FIXME
702
    }
703
#endif
704
}
705

    
706
static inline void write_back_intra_pred_mode(H264Context *h){
707
    MpegEncContext * const s = &h->s;
708
    const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
709

    
710
    h->intra4x4_pred_mode[mb_xy][0]= h->intra4x4_pred_mode_cache[7+8*1];
711
    h->intra4x4_pred_mode[mb_xy][1]= h->intra4x4_pred_mode_cache[7+8*2];
712
    h->intra4x4_pred_mode[mb_xy][2]= h->intra4x4_pred_mode_cache[7+8*3];
713
    h->intra4x4_pred_mode[mb_xy][3]= h->intra4x4_pred_mode_cache[7+8*4];
714
    h->intra4x4_pred_mode[mb_xy][4]= h->intra4x4_pred_mode_cache[4+8*4];
715
    h->intra4x4_pred_mode[mb_xy][5]= h->intra4x4_pred_mode_cache[5+8*4];
716
    h->intra4x4_pred_mode[mb_xy][6]= h->intra4x4_pred_mode_cache[6+8*4];
717
}
718

    
719
/**
720
 * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
721
 */
722
static inline int check_intra4x4_pred_mode(H264Context *h){
723
    MpegEncContext * const s = &h->s;
724
    static const int8_t top [12]= {-1, 0,LEFT_DC_PRED,-1,-1,-1,-1,-1, 0};
725
    static const int8_t left[12]= { 0,-1, TOP_DC_PRED, 0,-1,-1,-1, 0,-1,DC_128_PRED};
726
    int i;
727
    
728
    if(!(h->top_samples_available&0x8000)){
729
        for(i=0; i<4; i++){
730
            int status= top[ h->intra4x4_pred_mode_cache[scan8[0] + i] ];
731
            if(status<0){
732
                av_log(h->s.avctx, AV_LOG_ERROR, "top block unavailable for requested intra4x4 mode %d at %d %d\n", status, s->mb_x, s->mb_y);
733
                return -1;
734
            } else if(status){
735
                h->intra4x4_pred_mode_cache[scan8[0] + i]= status;
736
            }
737
        }
738
    }
739
    
740
    if(!(h->left_samples_available&0x8000)){
741
        for(i=0; i<4; i++){
742
            int status= left[ h->intra4x4_pred_mode_cache[scan8[0] + 8*i] ];
743
            if(status<0){
744
                av_log(h->s.avctx, AV_LOG_ERROR, "left block unavailable for requested intra4x4 mode %d at %d %d\n", status, s->mb_x, s->mb_y);
745
                return -1;
746
            } else if(status){
747
                h->intra4x4_pred_mode_cache[scan8[0] + 8*i]= status;
748
            }
749
        }
750
    }
751

    
752
    return 0;
753
} //FIXME cleanup like next
754

    
755
/**
756
 * checks if the top & left blocks are available if needed & changes the dc mode so it only uses the available blocks.
757
 */
758
static inline int check_intra_pred_mode(H264Context *h, int mode){
759
    MpegEncContext * const s = &h->s;
760
    static const int8_t top [7]= {LEFT_DC_PRED8x8, 1,-1,-1};
761
    static const int8_t left[7]= { TOP_DC_PRED8x8,-1, 2,-1,DC_128_PRED8x8};
762
    
763
    if(mode < 0 || mode > 6)
764
        return -1;
765
    
766
    if(!(h->top_samples_available&0x8000)){
767
        mode= top[ mode ];
768
        if(mode<0){
769
            av_log(h->s.avctx, AV_LOG_ERROR, "top block unavailable for requested intra mode at %d %d\n", s->mb_x, s->mb_y);
770
            return -1;
771
        }
772
    }
773
    
774
    if(!(h->left_samples_available&0x8000)){
775
        mode= left[ mode ];
776
        if(mode<0){
777
            av_log(h->s.avctx, AV_LOG_ERROR, "left block unavailable for requested intra mode at %d %d\n", s->mb_x, s->mb_y);
778
            return -1;
779
        } 
780
    }
781

    
782
    return mode;
783
}
784

    
785
/**
786
 * gets the predicted intra4x4 prediction mode.
787
 */
788
static inline int pred_intra_mode(H264Context *h, int n){
789
    const int index8= scan8[n];
790
    const int left= h->intra4x4_pred_mode_cache[index8 - 1];
791
    const int top = h->intra4x4_pred_mode_cache[index8 - 8];
792
    const int min= FFMIN(left, top);
793

    
794
    tprintf("mode:%d %d min:%d\n", left ,top, min);
795

    
796
    if(min<0) return DC_PRED;
797
    else      return min;
798
}
799

    
800
static inline void write_back_non_zero_count(H264Context *h){
801
    MpegEncContext * const s = &h->s;
802
    const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
803

    
804
    h->non_zero_count[mb_xy][0]= h->non_zero_count_cache[4+8*4];
805
    h->non_zero_count[mb_xy][1]= h->non_zero_count_cache[5+8*4];
806
    h->non_zero_count[mb_xy][2]= h->non_zero_count_cache[6+8*4];
807
    h->non_zero_count[mb_xy][3]= h->non_zero_count_cache[7+8*4];
808
    h->non_zero_count[mb_xy][4]= h->non_zero_count_cache[7+8*3];
809
    h->non_zero_count[mb_xy][5]= h->non_zero_count_cache[7+8*2];
810
    h->non_zero_count[mb_xy][6]= h->non_zero_count_cache[7+8*1];
811
    
812
    h->non_zero_count[mb_xy][7]= h->non_zero_count_cache[1+8*2];
813
    h->non_zero_count[mb_xy][8]= h->non_zero_count_cache[2+8*2];
814
    h->non_zero_count[mb_xy][9]= h->non_zero_count_cache[2+8*1];
815

    
816
    h->non_zero_count[mb_xy][10]=h->non_zero_count_cache[1+8*5];
817
    h->non_zero_count[mb_xy][11]=h->non_zero_count_cache[2+8*5];
818
    h->non_zero_count[mb_xy][12]=h->non_zero_count_cache[2+8*4];
819
}
820

    
821
/**
822
 * gets the predicted number of non zero coefficients.
823
 * @param n block index
824
 */
825
static inline int pred_non_zero_count(H264Context *h, int n){
826
    const int index8= scan8[n];
827
    const int left= h->non_zero_count_cache[index8 - 1];
828
    const int top = h->non_zero_count_cache[index8 - 8];
829
    int i= left + top;
830
    
831
    if(i<64) i= (i+1)>>1;
832

    
833
    tprintf("pred_nnz L%X T%X n%d s%d P%X\n", left, top, n, scan8[n], i&31);
834

    
835
    return i&31;
836
}
837

    
838
static inline int fetch_diagonal_mv(H264Context *h, const int16_t **C, int i, int list, int part_width){
839
    const int topright_ref= h->ref_cache[list][ i - 8 + part_width ];
840

    
841
    if(topright_ref != PART_NOT_AVAILABLE){
842
        *C= h->mv_cache[list][ i - 8 + part_width ];
843
        return topright_ref;
844
    }else{
845
        tprintf("topright MV not available\n");
846

    
847
        *C= h->mv_cache[list][ i - 8 - 1 ];
848
        return h->ref_cache[list][ i - 8 - 1 ];
849
    }
850
}
851

    
852
/**
853
 * gets the predicted MV.
854
 * @param n the block index
855
 * @param part_width the width of the partition (4, 8,16) -> (1, 2, 4)
856
 * @param mx the x component of the predicted motion vector
857
 * @param my the y component of the predicted motion vector
858
 */
859
static inline void pred_motion(H264Context * const h, int n, int part_width, int list, int ref, int * const mx, int * const my){
860
    const int index8= scan8[n];
861
    const int top_ref=      h->ref_cache[list][ index8 - 8 ];
862
    const int left_ref=     h->ref_cache[list][ index8 - 1 ];
863
    const int16_t * const A= h->mv_cache[list][ index8 - 1 ];
864
    const int16_t * const B= h->mv_cache[list][ index8 - 8 ];
865
    const int16_t * C;
866
    int diagonal_ref, match_count;
867

    
868
    assert(part_width==1 || part_width==2 || part_width==4);
869

    
870
/* mv_cache
871
  B . . A T T T T 
872
  U . . L . . , .
873
  U . . L . . . .
874
  U . . L . . , .
875
  . . . L . . . .
876
*/
877

    
878
    diagonal_ref= fetch_diagonal_mv(h, &C, index8, list, part_width);
879
    match_count= (diagonal_ref==ref) + (top_ref==ref) + (left_ref==ref);
880
    if(match_count > 1){ //most common
881
        *mx= mid_pred(A[0], B[0], C[0]);
882
        *my= mid_pred(A[1], B[1], C[1]);
883
    }else if(match_count==1){
884
        if(left_ref==ref){
885
            *mx= A[0];
886
            *my= A[1];        
887
        }else if(top_ref==ref){
888
            *mx= B[0];
889
            *my= B[1];        
890
        }else{
891
            *mx= C[0];
892
            *my= C[1];        
893
        }
894
    }else{
895
        if(top_ref == PART_NOT_AVAILABLE && diagonal_ref == PART_NOT_AVAILABLE && left_ref != PART_NOT_AVAILABLE){
896
            *mx= A[0];
897
            *my= A[1];        
898
        }else{
899
            *mx= mid_pred(A[0], B[0], C[0]);
900
            *my= mid_pred(A[1], B[1], C[1]);
901
        }
902
    }
903
        
904
    tprintf("pred_motion (%2d %2d %2d) (%2d %2d %2d) (%2d %2d %2d) -> (%2d %2d %2d) at %2d %2d %d list %d\n", top_ref, B[0], B[1],                    diagonal_ref, C[0], C[1], left_ref, A[0], A[1], ref, *mx, *my, h->s.mb_x, h->s.mb_y, n, list);
905
}
906

    
907
/**
908
 * gets the directionally predicted 16x8 MV.
909
 * @param n the block index
910
 * @param mx the x component of the predicted motion vector
911
 * @param my the y component of the predicted motion vector
912
 */
913
static inline void pred_16x8_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){
914
    if(n==0){
915
        const int top_ref=      h->ref_cache[list][ scan8[0] - 8 ];
916
        const int16_t * const B= h->mv_cache[list][ scan8[0] - 8 ];
917

    
918
        tprintf("pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d", top_ref, B[0], B[1], h->s.mb_x, h->s.mb_y, n, list);
919
        
920
        if(top_ref == ref){
921
            *mx= B[0];
922
            *my= B[1];
923
            return;
924
        }
925
    }else{
926
        const int left_ref=     h->ref_cache[list][ scan8[8] - 1 ];
927
        const int16_t * const A= h->mv_cache[list][ scan8[8] - 1 ];
928
        
929
        tprintf("pred_16x8: (%2d %2d %2d) at %2d %2d %d list %d", left_ref, A[0], A[1], h->s.mb_x, h->s.mb_y, n, list);
930

    
931
        if(left_ref == ref){
932
            *mx= A[0];
933
            *my= A[1];
934
            return;
935
        }
936
    }
937

    
938
    //RARE
939
    pred_motion(h, n, 4, list, ref, mx, my);
940
}
941

    
942
/**
943
 * gets the directionally predicted 8x16 MV.
944
 * @param n the block index
945
 * @param mx the x component of the predicted motion vector
946
 * @param my the y component of the predicted motion vector
947
 */
948
static inline void pred_8x16_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){
949
    if(n==0){
950
        const int left_ref=      h->ref_cache[list][ scan8[0] - 1 ];
951
        const int16_t * const A=  h->mv_cache[list][ scan8[0] - 1 ];
952
        
953
        tprintf("pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d", left_ref, A[0], A[1], h->s.mb_x, h->s.mb_y, n, list);
954

    
955
        if(left_ref == ref){
956
            *mx= A[0];
957
            *my= A[1];
958
            return;
959
        }
960
    }else{
961
        const int16_t * C;
962
        int diagonal_ref;
963

    
964
        diagonal_ref= fetch_diagonal_mv(h, &C, scan8[4], list, 2);
965
        
966
        tprintf("pred_8x16: (%2d %2d %2d) at %2d %2d %d list %d", diagonal_ref, C[0], C[1], h->s.mb_x, h->s.mb_y, n, list);
967

    
968
        if(diagonal_ref == ref){ 
969
            *mx= C[0];
970
            *my= C[1];
971
            return;
972
        }
973
    }
974

    
975
    //RARE
976
    pred_motion(h, n, 2, list, ref, mx, my);
977
}
978

    
979
static inline void pred_pskip_motion(H264Context * const h, int * const mx, int * const my){
980
    const int top_ref = h->ref_cache[0][ scan8[0] - 8 ];
981
    const int left_ref= h->ref_cache[0][ scan8[0] - 1 ];
982

    
983
    tprintf("pred_pskip: (%d) (%d) at %2d %2d", top_ref, left_ref, h->s.mb_x, h->s.mb_y);
984

    
985
    if(top_ref == PART_NOT_AVAILABLE || left_ref == PART_NOT_AVAILABLE
986
       || (top_ref == 0  && *(uint32_t*)h->mv_cache[0][ scan8[0] - 8 ] == 0)
987
       || (left_ref == 0 && *(uint32_t*)h->mv_cache[0][ scan8[0] - 1 ] == 0)){
988
       
989
        *mx = *my = 0;
990
        return;
991
    }
992
        
993
    pred_motion(h, 0, 4, 0, 0, mx, my);
994

    
995
    return;
996
}
997

    
998
static inline void write_back_motion(H264Context *h, int mb_type){
999
    MpegEncContext * const s = &h->s;
1000
    const int b_xy = 4*s->mb_x + 4*s->mb_y*h->b_stride;
1001
    const int b8_xy= 2*s->mb_x + 2*s->mb_y*h->b8_stride;
1002
    int list;
1003

    
1004
    for(list=0; list<2; list++){
1005
        int y;
1006
        if((!IS_8X8(mb_type)) && !USES_LIST(mb_type, list)){
1007
            if(1){ //FIXME skip or never read if mb_type doesnt use it
1008
                for(y=0; y<4; y++){
1009
                    *(uint64_t*)s->current_picture.motion_val[list][b_xy + 0 + y*h->b_stride]=
1010
                    *(uint64_t*)s->current_picture.motion_val[list][b_xy + 2 + y*h->b_stride]= 0;
1011
                }
1012
                if( h->pps.cabac ) {
1013
                    /* FIXME needed ? */
1014
                    for(y=0; y<4; y++){
1015
                        *(uint64_t*)h->mvd_table[list][b_xy + 0 + y*h->b_stride]=
1016
                        *(uint64_t*)h->mvd_table[list][b_xy + 2 + y*h->b_stride]= 0;
1017
                    }
1018
                }
1019
                for(y=0; y<2; y++){
1020
                    *(uint16_t*)&s->current_picture.ref_index[list][b8_xy + y*h->b8_stride]= (LIST_NOT_USED&0xFF)*0x0101;
1021
                }
1022
            }
1023
            continue; //FIXME direct mode ...
1024
        }
1025
        
1026
        for(y=0; y<4; y++){
1027
            *(uint64_t*)s->current_picture.motion_val[list][b_xy + 0 + y*h->b_stride]= *(uint64_t*)h->mv_cache[list][scan8[0]+0 + 8*y];
1028
            *(uint64_t*)s->current_picture.motion_val[list][b_xy + 2 + y*h->b_stride]= *(uint64_t*)h->mv_cache[list][scan8[0]+2 + 8*y];
1029
        }
1030
        if( h->pps.cabac ) {
1031
            for(y=0; y<4; y++){
1032
                *(uint64_t*)h->mvd_table[list][b_xy + 0 + y*h->b_stride]= *(uint64_t*)h->mvd_cache[list][scan8[0]+0 + 8*y];
1033
                *(uint64_t*)h->mvd_table[list][b_xy + 2 + y*h->b_stride]= *(uint64_t*)h->mvd_cache[list][scan8[0]+2 + 8*y];
1034
            }
1035
        }
1036
        for(y=0; y<2; y++){
1037
            s->current_picture.ref_index[list][b8_xy + 0 + y*h->b8_stride]= h->ref_cache[list][scan8[0]+0 + 16*y];
1038
            s->current_picture.ref_index[list][b8_xy + 1 + y*h->b8_stride]= h->ref_cache[list][scan8[0]+2 + 16*y];
1039
        }
1040
    }
1041
}
1042

    
1043
/**
1044
 * Decodes a network abstraction layer unit.
1045
 * @param consumed is the number of bytes used as input
1046
 * @param length is the length of the array
1047
 * @param dst_length is the number of decoded bytes FIXME here or a decode rbsp ttailing?
1048
 * @returns decoded bytes, might be src+1 if no escapes 
1049
 */
1050
static uint8_t *decode_nal(H264Context *h, uint8_t *src, int *dst_length, int *consumed, int length){
1051
    int i, si, di;
1052
    uint8_t *dst;
1053

    
1054
//    src[0]&0x80;                //forbidden bit
1055
    h->nal_ref_idc= src[0]>>5;
1056
    h->nal_unit_type= src[0]&0x1F;
1057

    
1058
    src++; length--;
1059
#if 0    
1060
    for(i=0; i<length; i++)
1061
        printf("%2X ", src[i]);
1062
#endif
1063
    for(i=0; i+1<length; i+=2){
1064
        if(src[i]) continue;
1065
        if(i>0 && src[i-1]==0) i--;
1066
        if(i+2<length && src[i+1]==0 && src[i+2]<=3){
1067
            if(src[i+2]!=3){
1068
                /* startcode, so we must be past the end */
1069
                length=i;
1070
            }
1071
            break;
1072
        }
1073
    }
1074

    
1075
    if(i>=length-1){ //no escaped 0
1076
        *dst_length= length;
1077
        *consumed= length+1; //+1 for the header
1078
        return src; 
1079
    }
1080

    
1081
    h->rbsp_buffer= av_fast_realloc(h->rbsp_buffer, &h->rbsp_buffer_size, length);
1082
    dst= h->rbsp_buffer;
1083

    
1084
//printf("deoding esc\n");
1085
    si=di=0;
1086
    while(si<length){ 
1087
        //remove escapes (very rare 1:2^22)
1088
        if(si+2<length && src[si]==0 && src[si+1]==0 && src[si+2]<=3){
1089
            if(src[si+2]==3){ //escape
1090
                dst[di++]= 0;
1091
                dst[di++]= 0;
1092
                si+=3;
1093
                continue;
1094
            }else //next start code
1095
                break;
1096
        }
1097

    
1098
        dst[di++]= src[si++];
1099
    }
1100

    
1101
    *dst_length= di;
1102
    *consumed= si + 1;//+1 for the header
1103
//FIXME store exact number of bits in the getbitcontext (its needed for decoding)
1104
    return dst;
1105
}
1106

    
1107
#if 0
1108
/**
1109
 * @param src the data which should be escaped
1110
 * @param dst the target buffer, dst+1 == src is allowed as a special case
1111
 * @param length the length of the src data
1112
 * @param dst_length the length of the dst array
1113
 * @returns length of escaped data in bytes or -1 if an error occured
1114
 */
1115
static int encode_nal(H264Context *h, uint8_t *dst, uint8_t *src, int length, int dst_length){
1116
    int i, escape_count, si, di;
1117
    uint8_t *temp;
1118
    
1119
    assert(length>=0);
1120
    assert(dst_length>0);
1121
    
1122
    dst[0]= (h->nal_ref_idc<<5) + h->nal_unit_type;
1123

1124
    if(length==0) return 1;
1125

1126
    escape_count= 0;
1127
    for(i=0; i<length; i+=2){
1128
        if(src[i]) continue;
1129
        if(i>0 && src[i-1]==0) 
1130
            i--;
1131
        if(i+2<length && src[i+1]==0 && src[i+2]<=3){
1132
            escape_count++;
1133
            i+=2;
1134
        }
1135
    }
1136
    
1137
    if(escape_count==0){ 
1138
        if(dst+1 != src)
1139
            memcpy(dst+1, src, length);
1140
        return length + 1;
1141
    }
1142
    
1143
    if(length + escape_count + 1> dst_length)
1144
        return -1;
1145

1146
    //this should be damn rare (hopefully)
1147

1148
    h->rbsp_buffer= av_fast_realloc(h->rbsp_buffer, &h->rbsp_buffer_size, length + escape_count);
1149
    temp= h->rbsp_buffer;
1150
//printf("encoding esc\n");
1151
    
1152
    si= 0;
1153
    di= 0;
1154
    while(si < length){
1155
        if(si+2<length && src[si]==0 && src[si+1]==0 && src[si+2]<=3){
1156
            temp[di++]= 0; si++;
1157
            temp[di++]= 0; si++;
1158
            temp[di++]= 3; 
1159
            temp[di++]= src[si++];
1160
        }
1161
        else
1162
            temp[di++]= src[si++];
1163
    }
1164
    memcpy(dst+1, temp, length+escape_count);
1165
    
1166
    assert(di == length+escape_count);
1167
    
1168
    return di + 1;
1169
}
1170

1171
/**
1172
 * write 1,10,100,1000,... for alignment, yes its exactly inverse to mpeg4
1173
 */
1174
static void encode_rbsp_trailing(PutBitContext *pb){
1175
    int length;
1176
    put_bits(pb, 1, 1);
1177
    length= (-put_bits_count(pb))&7;
1178
    if(length) put_bits(pb, length, 0);
1179
}
1180
#endif
1181

    
1182
/**
1183
 * identifies the exact end of the bitstream
1184
 * @return the length of the trailing, or 0 if damaged
1185
 */
1186
static int decode_rbsp_trailing(uint8_t *src){
1187
    int v= *src;
1188
    int r;
1189

    
1190
    tprintf("rbsp trailing %X\n", v);
1191

    
1192
    for(r=1; r<9; r++){
1193
        if(v&1) return r;
1194
        v>>=1;
1195
    }
1196
    return 0;
1197
}
1198

    
1199
/**
1200
 * idct tranforms the 16 dc values and dequantize them.
1201
 * @param qp quantization parameter
1202
 */
1203
static void h264_luma_dc_dequant_idct_c(DCTELEM *block, int qp){
1204
    const int qmul= dequant_coeff[qp][0];
1205
#define stride 16
1206
    int i;
1207
    int temp[16]; //FIXME check if this is a good idea
1208
    static const int x_offset[4]={0, 1*stride, 4* stride,  5*stride};
1209
    static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
1210

    
1211
//memset(block, 64, 2*256);
1212
//return;
1213
    for(i=0; i<4; i++){
1214
        const int offset= y_offset[i];
1215
        const int z0= block[offset+stride*0] + block[offset+stride*4];
1216
        const int z1= block[offset+stride*0] - block[offset+stride*4];
1217
        const int z2= block[offset+stride*1] - block[offset+stride*5];
1218
        const int z3= block[offset+stride*1] + block[offset+stride*5];
1219

    
1220
        temp[4*i+0]= z0+z3;
1221
        temp[4*i+1]= z1+z2;
1222
        temp[4*i+2]= z1-z2;
1223
        temp[4*i+3]= z0-z3;
1224
    }
1225

    
1226
    for(i=0; i<4; i++){
1227
        const int offset= x_offset[i];
1228
        const int z0= temp[4*0+i] + temp[4*2+i];
1229
        const int z1= temp[4*0+i] - temp[4*2+i];
1230
        const int z2= temp[4*1+i] - temp[4*3+i];
1231
        const int z3= temp[4*1+i] + temp[4*3+i];
1232

    
1233
        block[stride*0 +offset]= ((z0 + z3)*qmul + 2)>>2; //FIXME think about merging this into decode_resdual
1234
        block[stride*2 +offset]= ((z1 + z2)*qmul + 2)>>2;
1235
        block[stride*8 +offset]= ((z1 - z2)*qmul + 2)>>2;
1236
        block[stride*10+offset]= ((z0 - z3)*qmul + 2)>>2;
1237
    }
1238
}
1239

    
1240
#if 0
1241
/**
1242
 * dct tranforms the 16 dc values.
1243
 * @param qp quantization parameter ??? FIXME
1244
 */
1245
static void h264_luma_dc_dct_c(DCTELEM *block/*, int qp*/){
1246
//    const int qmul= dequant_coeff[qp][0];
1247
    int i;
1248
    int temp[16]; //FIXME check if this is a good idea
1249
    static const int x_offset[4]={0, 1*stride, 4* stride,  5*stride};
1250
    static const int y_offset[4]={0, 2*stride, 8* stride, 10*stride};
1251

1252
    for(i=0; i<4; i++){
1253
        const int offset= y_offset[i];
1254
        const int z0= block[offset+stride*0] + block[offset+stride*4];
1255
        const int z1= block[offset+stride*0] - block[offset+stride*4];
1256
        const int z2= block[offset+stride*1] - block[offset+stride*5];
1257
        const int z3= block[offset+stride*1] + block[offset+stride*5];
1258

1259
        temp[4*i+0]= z0+z3;
1260
        temp[4*i+1]= z1+z2;
1261
        temp[4*i+2]= z1-z2;
1262
        temp[4*i+3]= z0-z3;
1263
    }
1264

1265
    for(i=0; i<4; i++){
1266
        const int offset= x_offset[i];
1267
        const int z0= temp[4*0+i] + temp[4*2+i];
1268
        const int z1= temp[4*0+i] - temp[4*2+i];
1269
        const int z2= temp[4*1+i] - temp[4*3+i];
1270
        const int z3= temp[4*1+i] + temp[4*3+i];
1271

1272
        block[stride*0 +offset]= (z0 + z3)>>1;
1273
        block[stride*2 +offset]= (z1 + z2)>>1;
1274
        block[stride*8 +offset]= (z1 - z2)>>1;
1275
        block[stride*10+offset]= (z0 - z3)>>1;
1276
    }
1277
}
1278
#endif
1279

    
1280
#undef xStride
1281
#undef stride
1282

    
1283
static void chroma_dc_dequant_idct_c(DCTELEM *block, int qp){
1284
    const int qmul= dequant_coeff[qp][0];
1285
    const int stride= 16*2;
1286
    const int xStride= 16;
1287
    int a,b,c,d,e;
1288

    
1289
    a= block[stride*0 + xStride*0];
1290
    b= block[stride*0 + xStride*1];
1291
    c= block[stride*1 + xStride*0];
1292
    d= block[stride*1 + xStride*1];
1293

    
1294
    e= a-b;
1295
    a= a+b;
1296
    b= c-d;
1297
    c= c+d;
1298

    
1299
    block[stride*0 + xStride*0]= ((a+c)*qmul + 0)>>1;
1300
    block[stride*0 + xStride*1]= ((e+b)*qmul + 0)>>1;
1301
    block[stride*1 + xStride*0]= ((a-c)*qmul + 0)>>1;
1302
    block[stride*1 + xStride*1]= ((e-b)*qmul + 0)>>1;
1303
}
1304

    
1305
#if 0
1306
static void chroma_dc_dct_c(DCTELEM *block){
1307
    const int stride= 16*2;
1308
    const int xStride= 16;
1309
    int a,b,c,d,e;
1310

1311
    a= block[stride*0 + xStride*0];
1312
    b= block[stride*0 + xStride*1];
1313
    c= block[stride*1 + xStride*0];
1314
    d= block[stride*1 + xStride*1];
1315

1316
    e= a-b;
1317
    a= a+b;
1318
    b= c-d;
1319
    c= c+d;
1320

1321
    block[stride*0 + xStride*0]= (a+c);
1322
    block[stride*0 + xStride*1]= (e+b);
1323
    block[stride*1 + xStride*0]= (a-c);
1324
    block[stride*1 + xStride*1]= (e-b);
1325
}
1326
#endif
1327

    
1328
/**
1329
 * gets the chroma qp.
1330
 */
1331
static inline int get_chroma_qp(H264Context *h, int qscale){
1332
    
1333
    return chroma_qp[clip(qscale + h->pps.chroma_qp_index_offset, 0, 51)];
1334
}
1335

    
1336

    
1337
#if 0
1338
static void h264_diff_dct_c(DCTELEM *block, uint8_t *src1, uint8_t *src2, int stride){
1339
    int i;
1340
    //FIXME try int temp instead of block
1341
    
1342
    for(i=0; i<4; i++){
1343
        const int d0= src1[0 + i*stride] - src2[0 + i*stride];
1344
        const int d1= src1[1 + i*stride] - src2[1 + i*stride];
1345
        const int d2= src1[2 + i*stride] - src2[2 + i*stride];
1346
        const int d3= src1[3 + i*stride] - src2[3 + i*stride];
1347
        const int z0= d0 + d3;
1348
        const int z3= d0 - d3;
1349
        const int z1= d1 + d2;
1350
        const int z2= d1 - d2;
1351
        
1352
        block[0 + 4*i]=   z0 +   z1;
1353
        block[1 + 4*i]= 2*z3 +   z2;
1354
        block[2 + 4*i]=   z0 -   z1;
1355
        block[3 + 4*i]=   z3 - 2*z2;
1356
    }    
1357

1358
    for(i=0; i<4; i++){
1359
        const int z0= block[0*4 + i] + block[3*4 + i];
1360
        const int z3= block[0*4 + i] - block[3*4 + i];
1361
        const int z1= block[1*4 + i] + block[2*4 + i];
1362
        const int z2= block[1*4 + i] - block[2*4 + i];
1363
        
1364
        block[0*4 + i]=   z0 +   z1;
1365
        block[1*4 + i]= 2*z3 +   z2;
1366
        block[2*4 + i]=   z0 -   z1;
1367
        block[3*4 + i]=   z3 - 2*z2;
1368
    }
1369
}
1370
#endif
1371

    
1372
//FIXME need to check that this doesnt overflow signed 32 bit for low qp, iam not sure, its very close
1373
//FIXME check that gcc inlines this (and optimizes intra & seperate_dc stuff away)
1374
static inline int quantize_c(DCTELEM *block, uint8_t *scantable, int qscale, int intra, int seperate_dc){
1375
    int i;
1376
    const int * const quant_table= quant_coeff[qscale];
1377
    const int bias= intra ? (1<<QUANT_SHIFT)/3 : (1<<QUANT_SHIFT)/6;
1378
    const unsigned int threshold1= (1<<QUANT_SHIFT) - bias - 1;
1379
    const unsigned int threshold2= (threshold1<<1);
1380
    int last_non_zero;
1381

    
1382
    if(seperate_dc){
1383
        if(qscale<=18){
1384
            //avoid overflows
1385
            const int dc_bias= intra ? (1<<(QUANT_SHIFT-2))/3 : (1<<(QUANT_SHIFT-2))/6;
1386
            const unsigned int dc_threshold1= (1<<(QUANT_SHIFT-2)) - dc_bias - 1;
1387
            const unsigned int dc_threshold2= (dc_threshold1<<1);
1388

    
1389
            int level= block[0]*quant_coeff[qscale+18][0];
1390
            if(((unsigned)(level+dc_threshold1))>dc_threshold2){
1391
                if(level>0){
1392
                    level= (dc_bias + level)>>(QUANT_SHIFT-2);
1393
                    block[0]= level;
1394
                }else{
1395
                    level= (dc_bias - level)>>(QUANT_SHIFT-2);
1396
                    block[0]= -level;
1397
                }
1398
//                last_non_zero = i;
1399
            }else{
1400
                block[0]=0;
1401
            }
1402
        }else{
1403
            const int dc_bias= intra ? (1<<(QUANT_SHIFT+1))/3 : (1<<(QUANT_SHIFT+1))/6;
1404
            const unsigned int dc_threshold1= (1<<(QUANT_SHIFT+1)) - dc_bias - 1;
1405
            const unsigned int dc_threshold2= (dc_threshold1<<1);
1406

    
1407
            int level= block[0]*quant_table[0];
1408
            if(((unsigned)(level+dc_threshold1))>dc_threshold2){
1409
                if(level>0){
1410
                    level= (dc_bias + level)>>(QUANT_SHIFT+1);
1411
                    block[0]= level;
1412
                }else{
1413
                    level= (dc_bias - level)>>(QUANT_SHIFT+1);
1414
                    block[0]= -level;
1415
                }
1416
//                last_non_zero = i;
1417
            }else{
1418
                block[0]=0;
1419
            }
1420
        }
1421
        last_non_zero= 0;
1422
        i=1;
1423
    }else{
1424
        last_non_zero= -1;
1425
        i=0;
1426
    }
1427

    
1428
    for(; i<16; i++){
1429
        const int j= scantable[i];
1430
        int level= block[j]*quant_table[j];
1431

    
1432
//        if(   bias+level >= (1<<(QMAT_SHIFT - 3))
1433
//           || bias-level >= (1<<(QMAT_SHIFT - 3))){
1434
        if(((unsigned)(level+threshold1))>threshold2){
1435
            if(level>0){
1436
                level= (bias + level)>>QUANT_SHIFT;
1437
                block[j]= level;
1438
            }else{
1439
                level= (bias - level)>>QUANT_SHIFT;
1440
                block[j]= -level;
1441
            }
1442
            last_non_zero = i;
1443
        }else{
1444
            block[j]=0;
1445
        }
1446
    }
1447

    
1448
    return last_non_zero;
1449
}
1450

    
1451
static void pred4x4_vertical_c(uint8_t *src, uint8_t *topright, int stride){
1452
    const uint32_t a= ((uint32_t*)(src-stride))[0];
1453
    ((uint32_t*)(src+0*stride))[0]= a;
1454
    ((uint32_t*)(src+1*stride))[0]= a;
1455
    ((uint32_t*)(src+2*stride))[0]= a;
1456
    ((uint32_t*)(src+3*stride))[0]= a;
1457
}
1458

    
1459
static void pred4x4_horizontal_c(uint8_t *src, uint8_t *topright, int stride){
1460
    ((uint32_t*)(src+0*stride))[0]= src[-1+0*stride]*0x01010101;
1461
    ((uint32_t*)(src+1*stride))[0]= src[-1+1*stride]*0x01010101;
1462
    ((uint32_t*)(src+2*stride))[0]= src[-1+2*stride]*0x01010101;
1463
    ((uint32_t*)(src+3*stride))[0]= src[-1+3*stride]*0x01010101;
1464
}
1465

    
1466
static void pred4x4_dc_c(uint8_t *src, uint8_t *topright, int stride){
1467
    const int dc= (  src[-stride] + src[1-stride] + src[2-stride] + src[3-stride]
1468
                   + src[-1+0*stride] + src[-1+1*stride] + src[-1+2*stride] + src[-1+3*stride] + 4) >>3;
1469
    
1470
    ((uint32_t*)(src+0*stride))[0]= 
1471
    ((uint32_t*)(src+1*stride))[0]= 
1472
    ((uint32_t*)(src+2*stride))[0]= 
1473
    ((uint32_t*)(src+3*stride))[0]= dc* 0x01010101; 
1474
}
1475

    
1476
static void pred4x4_left_dc_c(uint8_t *src, uint8_t *topright, int stride){
1477
    const int dc= (  src[-1+0*stride] + src[-1+1*stride] + src[-1+2*stride] + src[-1+3*stride] + 2) >>2;
1478
    
1479
    ((uint32_t*)(src+0*stride))[0]= 
1480
    ((uint32_t*)(src+1*stride))[0]= 
1481
    ((uint32_t*)(src+2*stride))[0]= 
1482
    ((uint32_t*)(src+3*stride))[0]= dc* 0x01010101; 
1483
}
1484

    
1485
static void pred4x4_top_dc_c(uint8_t *src, uint8_t *topright, int stride){
1486
    const int dc= (  src[-stride] + src[1-stride] + src[2-stride] + src[3-stride] + 2) >>2;
1487
    
1488
    ((uint32_t*)(src+0*stride))[0]= 
1489
    ((uint32_t*)(src+1*stride))[0]= 
1490
    ((uint32_t*)(src+2*stride))[0]= 
1491
    ((uint32_t*)(src+3*stride))[0]= dc* 0x01010101; 
1492
}
1493

    
1494
static void pred4x4_128_dc_c(uint8_t *src, uint8_t *topright, int stride){
1495
    ((uint32_t*)(src+0*stride))[0]= 
1496
    ((uint32_t*)(src+1*stride))[0]= 
1497
    ((uint32_t*)(src+2*stride))[0]= 
1498
    ((uint32_t*)(src+3*stride))[0]= 128U*0x01010101U;
1499
}
1500

    
1501

    
1502
#define LOAD_TOP_RIGHT_EDGE\
1503
    const int t4= topright[0];\
1504
    const int t5= topright[1];\
1505
    const int t6= topright[2];\
1506
    const int t7= topright[3];\
1507

    
1508
#define LOAD_LEFT_EDGE\
1509
    const int l0= src[-1+0*stride];\
1510
    const int l1= src[-1+1*stride];\
1511
    const int l2= src[-1+2*stride];\
1512
    const int l3= src[-1+3*stride];\
1513

    
1514
#define LOAD_TOP_EDGE\
1515
    const int t0= src[ 0-1*stride];\
1516
    const int t1= src[ 1-1*stride];\
1517
    const int t2= src[ 2-1*stride];\
1518
    const int t3= src[ 3-1*stride];\
1519

    
1520
static void pred4x4_down_right_c(uint8_t *src, uint8_t *topright, int stride){
1521
    const int lt= src[-1-1*stride];
1522
    LOAD_TOP_EDGE
1523
    LOAD_LEFT_EDGE
1524

    
1525
    src[0+3*stride]=(l3 + 2*l2 + l1 + 2)>>2; 
1526
    src[0+2*stride]=
1527
    src[1+3*stride]=(l2 + 2*l1 + l0 + 2)>>2; 
1528
    src[0+1*stride]=
1529
    src[1+2*stride]=
1530
    src[2+3*stride]=(l1 + 2*l0 + lt + 2)>>2; 
1531
    src[0+0*stride]=
1532
    src[1+1*stride]=
1533
    src[2+2*stride]=
1534
    src[3+3*stride]=(l0 + 2*lt + t0 + 2)>>2; 
1535
    src[1+0*stride]=
1536
    src[2+1*stride]=
1537
    src[3+2*stride]=(lt + 2*t0 + t1 + 2)>>2;
1538
    src[2+0*stride]=
1539
    src[3+1*stride]=(t0 + 2*t1 + t2 + 2)>>2;
1540
    src[3+0*stride]=(t1 + 2*t2 + t3 + 2)>>2;
1541
}
1542

    
1543
static void pred4x4_down_left_c(uint8_t *src, uint8_t *topright, int stride){
1544
    LOAD_TOP_EDGE    
1545
    LOAD_TOP_RIGHT_EDGE    
1546
//    LOAD_LEFT_EDGE    
1547

    
1548
    src[0+0*stride]=(t0 + t2 + 2*t1 + 2)>>2;
1549
    src[1+0*stride]=
1550
    src[0+1*stride]=(t1 + t3 + 2*t2 + 2)>>2;
1551
    src[2+0*stride]=
1552
    src[1+1*stride]=
1553
    src[0+2*stride]=(t2 + t4 + 2*t3 + 2)>>2;
1554
    src[3+0*stride]=
1555
    src[2+1*stride]=
1556
    src[1+2*stride]=
1557
    src[0+3*stride]=(t3 + t5 + 2*t4 + 2)>>2;
1558
    src[3+1*stride]=
1559
    src[2+2*stride]=
1560
    src[1+3*stride]=(t4 + t6 + 2*t5 + 2)>>2;
1561
    src[3+2*stride]=
1562
    src[2+3*stride]=(t5 + t7 + 2*t6 + 2)>>2;
1563
    src[3+3*stride]=(t6 + 3*t7 + 2)>>2;
1564
}
1565

    
1566
static void pred4x4_vertical_right_c(uint8_t *src, uint8_t *topright, int stride){
1567
    const int lt= src[-1-1*stride];
1568
    LOAD_TOP_EDGE    
1569
    LOAD_LEFT_EDGE    
1570
    const __attribute__((unused)) int unu= l3;
1571

    
1572
    src[0+0*stride]=
1573
    src[1+2*stride]=(lt + t0 + 1)>>1;
1574
    src[1+0*stride]=
1575
    src[2+2*stride]=(t0 + t1 + 1)>>1;
1576
    src[2+0*stride]=
1577
    src[3+2*stride]=(t1 + t2 + 1)>>1;
1578
    src[3+0*stride]=(t2 + t3 + 1)>>1;
1579
    src[0+1*stride]=
1580
    src[1+3*stride]=(l0 + 2*lt + t0 + 2)>>2;
1581
    src[1+1*stride]=
1582
    src[2+3*stride]=(lt + 2*t0 + t1 + 2)>>2;
1583
    src[2+1*stride]=
1584
    src[3+3*stride]=(t0 + 2*t1 + t2 + 2)>>2;
1585
    src[3+1*stride]=(t1 + 2*t2 + t3 + 2)>>2;
1586
    src[0+2*stride]=(lt + 2*l0 + l1 + 2)>>2;
1587
    src[0+3*stride]=(l0 + 2*l1 + l2 + 2)>>2;
1588
}
1589

    
1590
static void pred4x4_vertical_left_c(uint8_t *src, uint8_t *topright, int stride){
1591
    LOAD_TOP_EDGE    
1592
    LOAD_TOP_RIGHT_EDGE    
1593
    const __attribute__((unused)) int unu= t7;
1594

    
1595
    src[0+0*stride]=(t0 + t1 + 1)>>1;
1596
    src[1+0*stride]=
1597
    src[0+2*stride]=(t1 + t2 + 1)>>1;
1598
    src[2+0*stride]=
1599
    src[1+2*stride]=(t2 + t3 + 1)>>1;
1600
    src[3+0*stride]=
1601
    src[2+2*stride]=(t3 + t4+ 1)>>1;
1602
    src[3+2*stride]=(t4 + t5+ 1)>>1;
1603
    src[0+1*stride]=(t0 + 2*t1 + t2 + 2)>>2;
1604
    src[1+1*stride]=
1605
    src[0+3*stride]=(t1 + 2*t2 + t3 + 2)>>2;
1606
    src[2+1*stride]=
1607
    src[1+3*stride]=(t2 + 2*t3 + t4 + 2)>>2;
1608
    src[3+1*stride]=
1609
    src[2+3*stride]=(t3 + 2*t4 + t5 + 2)>>2;
1610
    src[3+3*stride]=(t4 + 2*t5 + t6 + 2)>>2;
1611
}
1612

    
1613
static void pred4x4_horizontal_up_c(uint8_t *src, uint8_t *topright, int stride){
1614
    LOAD_LEFT_EDGE    
1615

    
1616
    src[0+0*stride]=(l0 + l1 + 1)>>1;
1617
    src[1+0*stride]=(l0 + 2*l1 + l2 + 2)>>2;
1618
    src[2+0*stride]=
1619
    src[0+1*stride]=(l1 + l2 + 1)>>1;
1620
    src[3+0*stride]=
1621
    src[1+1*stride]=(l1 + 2*l2 + l3 + 2)>>2;
1622
    src[2+1*stride]=
1623
    src[0+2*stride]=(l2 + l3 + 1)>>1;
1624
    src[3+1*stride]=
1625
    src[1+2*stride]=(l2 + 2*l3 + l3 + 2)>>2;
1626
    src[3+2*stride]=
1627
    src[1+3*stride]=
1628
    src[0+3*stride]=
1629
    src[2+2*stride]=
1630
    src[2+3*stride]=
1631
    src[3+3*stride]=l3;
1632
}
1633
    
1634
static void pred4x4_horizontal_down_c(uint8_t *src, uint8_t *topright, int stride){
1635
    const int lt= src[-1-1*stride];
1636
    LOAD_TOP_EDGE    
1637
    LOAD_LEFT_EDGE    
1638
    const __attribute__((unused)) int unu= t3;
1639

    
1640
    src[0+0*stride]=
1641
    src[2+1*stride]=(lt + l0 + 1)>>1;
1642
    src[1+0*stride]=
1643
    src[3+1*stride]=(l0 + 2*lt + t0 + 2)>>2;
1644
    src[2+0*stride]=(lt + 2*t0 + t1 + 2)>>2;
1645
    src[3+0*stride]=(t0 + 2*t1 + t2 + 2)>>2;
1646
    src[0+1*stride]=
1647
    src[2+2*stride]=(l0 + l1 + 1)>>1;
1648
    src[1+1*stride]=
1649
    src[3+2*stride]=(lt + 2*l0 + l1 + 2)>>2;
1650
    src[0+2*stride]=
1651
    src[2+3*stride]=(l1 + l2+ 1)>>1;
1652
    src[1+2*stride]=
1653
    src[3+3*stride]=(l0 + 2*l1 + l2 + 2)>>2;
1654
    src[0+3*stride]=(l2 + l3 + 1)>>1;
1655
    src[1+3*stride]=(l1 + 2*l2 + l3 + 2)>>2;
1656
}
1657

    
1658
static void pred16x16_vertical_c(uint8_t *src, int stride){
1659
    int i;
1660
    const uint32_t a= ((uint32_t*)(src-stride))[0];
1661
    const uint32_t b= ((uint32_t*)(src-stride))[1];
1662
    const uint32_t c= ((uint32_t*)(src-stride))[2];
1663
    const uint32_t d= ((uint32_t*)(src-stride))[3];
1664
    
1665
    for(i=0; i<16; i++){
1666
        ((uint32_t*)(src+i*stride))[0]= a;
1667
        ((uint32_t*)(src+i*stride))[1]= b;
1668
        ((uint32_t*)(src+i*stride))[2]= c;
1669
        ((uint32_t*)(src+i*stride))[3]= d;
1670
    }
1671
}
1672

    
1673
static void pred16x16_horizontal_c(uint8_t *src, int stride){
1674
    int i;
1675

    
1676
    for(i=0; i<16; i++){
1677
        ((uint32_t*)(src+i*stride))[0]=
1678
        ((uint32_t*)(src+i*stride))[1]=
1679
        ((uint32_t*)(src+i*stride))[2]=
1680
        ((uint32_t*)(src+i*stride))[3]= src[-1+i*stride]*0x01010101;
1681
    }
1682
}
1683

    
1684
static void pred16x16_dc_c(uint8_t *src, int stride){
1685
    int i, dc=0;
1686

    
1687
    for(i=0;i<16; i++){
1688
        dc+= src[-1+i*stride];
1689
    }
1690
    
1691
    for(i=0;i<16; i++){
1692
        dc+= src[i-stride];
1693
    }
1694

    
1695
    dc= 0x01010101*((dc + 16)>>5);
1696

    
1697
    for(i=0; i<16; i++){
1698
        ((uint32_t*)(src+i*stride))[0]=
1699
        ((uint32_t*)(src+i*stride))[1]=
1700
        ((uint32_t*)(src+i*stride))[2]=
1701
        ((uint32_t*)(src+i*stride))[3]= dc;
1702
    }
1703
}
1704

    
1705
static void pred16x16_left_dc_c(uint8_t *src, int stride){
1706
    int i, dc=0;
1707

    
1708
    for(i=0;i<16; i++){
1709
        dc+= src[-1+i*stride];
1710
    }
1711
    
1712
    dc= 0x01010101*((dc + 8)>>4);
1713

    
1714
    for(i=0; i<16; i++){
1715
        ((uint32_t*)(src+i*stride))[0]=
1716
        ((uint32_t*)(src+i*stride))[1]=
1717
        ((uint32_t*)(src+i*stride))[2]=
1718
        ((uint32_t*)(src+i*stride))[3]= dc;
1719
    }
1720
}
1721

    
1722
static void pred16x16_top_dc_c(uint8_t *src, int stride){
1723
    int i, dc=0;
1724

    
1725
    for(i=0;i<16; i++){
1726
        dc+= src[i-stride];
1727
    }
1728
    dc= 0x01010101*((dc + 8)>>4);
1729

    
1730
    for(i=0; i<16; i++){
1731
        ((uint32_t*)(src+i*stride))[0]=
1732
        ((uint32_t*)(src+i*stride))[1]=
1733
        ((uint32_t*)(src+i*stride))[2]=
1734
        ((uint32_t*)(src+i*stride))[3]= dc;
1735
    }
1736
}
1737

    
1738
static void pred16x16_128_dc_c(uint8_t *src, int stride){
1739
    int i;
1740

    
1741
    for(i=0; i<16; i++){
1742
        ((uint32_t*)(src+i*stride))[0]=
1743
        ((uint32_t*)(src+i*stride))[1]=
1744
        ((uint32_t*)(src+i*stride))[2]=
1745
        ((uint32_t*)(src+i*stride))[3]= 0x01010101U*128U;
1746
    }
1747
}
1748

    
1749
static inline void pred16x16_plane_compat_c(uint8_t *src, int stride, const int svq3){
1750
  int i, j, k;
1751
  int a;
1752
  uint8_t *cm = cropTbl + MAX_NEG_CROP;
1753
  const uint8_t * const src0 = src+7-stride;
1754
  const uint8_t *src1 = src+8*stride-1;
1755
  const uint8_t *src2 = src1-2*stride;      // == src+6*stride-1;
1756
  int H = src0[1] - src0[-1];
1757
  int V = src1[0] - src2[ 0];
1758
  for(k=2; k<=8; ++k) {
1759
    src1 += stride; src2 -= stride;
1760
    H += k*(src0[k] - src0[-k]);
1761
    V += k*(src1[0] - src2[ 0]);
1762
  }
1763
  if(svq3){
1764
    H = ( 5*(H/4) ) / 16;
1765
    V = ( 5*(V/4) ) / 16;
1766

    
1767
    /* required for 100% accuracy */
1768
    i = H; H = V; V = i;
1769
  }else{
1770
    H = ( 5*H+32 ) >> 6;
1771
    V = ( 5*V+32 ) >> 6;
1772
  }
1773

    
1774
  a = 16*(src1[0] + src2[16] + 1) - 7*(V+H);
1775
  for(j=16; j>0; --j) {
1776
    int b = a;
1777
    a += V;
1778
    for(i=-16; i<0; i+=4) {
1779
      src[16+i] = cm[ (b    ) >> 5 ];
1780
      src[17+i] = cm[ (b+  H) >> 5 ];
1781
      src[18+i] = cm[ (b+2*H) >> 5 ];
1782
      src[19+i] = cm[ (b+3*H) >> 5 ];
1783
      b += 4*H;
1784
    }
1785
    src += stride;
1786
  }
1787
}
1788

    
1789
static void pred16x16_plane_c(uint8_t *src, int stride){
1790
    pred16x16_plane_compat_c(src, stride, 0);
1791
}
1792

    
1793
static void pred8x8_vertical_c(uint8_t *src, int stride){
1794
    int i;
1795
    const uint32_t a= ((uint32_t*)(src-stride))[0];
1796
    const uint32_t b= ((uint32_t*)(src-stride))[1];
1797
    
1798
    for(i=0; i<8; i++){
1799
        ((uint32_t*)(src+i*stride))[0]= a;
1800
        ((uint32_t*)(src+i*stride))[1]= b;
1801
    }
1802
}
1803

    
1804
static void pred8x8_horizontal_c(uint8_t *src, int stride){
1805
    int i;
1806

    
1807
    for(i=0; i<8; i++){
1808
        ((uint32_t*)(src+i*stride))[0]=
1809
        ((uint32_t*)(src+i*stride))[1]= src[-1+i*stride]*0x01010101;
1810
    }
1811
}
1812

    
1813
static void pred8x8_128_dc_c(uint8_t *src, int stride){
1814
    int i;
1815

    
1816
    for(i=0; i<4; i++){
1817
        ((uint32_t*)(src+i*stride))[0]= 
1818
        ((uint32_t*)(src+i*stride))[1]= 0x01010101U*128U;
1819
    }
1820
    for(i=4; i<8; i++){
1821
        ((uint32_t*)(src+i*stride))[0]= 
1822
        ((uint32_t*)(src+i*stride))[1]= 0x01010101U*128U;
1823
    }
1824
}
1825

    
1826
static void pred8x8_left_dc_c(uint8_t *src, int stride){
1827
    int i;
1828
    int dc0, dc2;
1829

    
1830
    dc0=dc2=0;
1831
    for(i=0;i<4; i++){
1832
        dc0+= src[-1+i*stride];
1833
        dc2+= src[-1+(i+4)*stride];
1834
    }
1835
    dc0= 0x01010101*((dc0 + 2)>>2);
1836
    dc2= 0x01010101*((dc2 + 2)>>2);
1837

    
1838
    for(i=0; i<4; i++){
1839
        ((uint32_t*)(src+i*stride))[0]=
1840
        ((uint32_t*)(src+i*stride))[1]= dc0;
1841
    }
1842
    for(i=4; i<8; i++){
1843
        ((uint32_t*)(src+i*stride))[0]=
1844
        ((uint32_t*)(src+i*stride))[1]= dc2;
1845
    }
1846
}
1847

    
1848
static void pred8x8_top_dc_c(uint8_t *src, int stride){
1849
    int i;
1850
    int dc0, dc1;
1851

    
1852
    dc0=dc1=0;
1853
    for(i=0;i<4; i++){
1854
        dc0+= src[i-stride];
1855
        dc1+= src[4+i-stride];
1856
    }
1857
    dc0= 0x01010101*((dc0 + 2)>>2);
1858
    dc1= 0x01010101*((dc1 + 2)>>2);
1859

    
1860
    for(i=0; i<4; i++){
1861
        ((uint32_t*)(src+i*stride))[0]= dc0;
1862
        ((uint32_t*)(src+i*stride))[1]= dc1;
1863
    }
1864
    for(i=4; i<8; i++){
1865
        ((uint32_t*)(src+i*stride))[0]= dc0;
1866
        ((uint32_t*)(src+i*stride))[1]= dc1;
1867
    }
1868
}
1869

    
1870

    
1871
static void pred8x8_dc_c(uint8_t *src, int stride){
1872
    int i;
1873
    int dc0, dc1, dc2, dc3;
1874

    
1875
    dc0=dc1=dc2=0;
1876
    for(i=0;i<4; i++){
1877
        dc0+= src[-1+i*stride] + src[i-stride];
1878
        dc1+= src[4+i-stride];
1879
        dc2+= src[-1+(i+4)*stride];
1880
    }
1881
    dc3= 0x01010101*((dc1 + dc2 + 4)>>3);
1882
    dc0= 0x01010101*((dc0 + 4)>>3);
1883
    dc1= 0x01010101*((dc1 + 2)>>2);
1884
    dc2= 0x01010101*((dc2 + 2)>>2);
1885

    
1886
    for(i=0; i<4; i++){
1887
        ((uint32_t*)(src+i*stride))[0]= dc0;
1888
        ((uint32_t*)(src+i*stride))[1]= dc1;
1889
    }
1890
    for(i=4; i<8; i++){
1891
        ((uint32_t*)(src+i*stride))[0]= dc2;
1892
        ((uint32_t*)(src+i*stride))[1]= dc3;
1893
    }
1894
}
1895

    
1896
static void pred8x8_plane_c(uint8_t *src, int stride){
1897
  int j, k;
1898
  int a;
1899
  uint8_t *cm = cropTbl + MAX_NEG_CROP;
1900
  const uint8_t * const src0 = src+3-stride;
1901
  const uint8_t *src1 = src+4*stride-1;
1902
  const uint8_t *src2 = src1-2*stride;      // == src+2*stride-1;
1903
  int H = src0[1] - src0[-1];
1904
  int V = src1[0] - src2[ 0];
1905
  for(k=2; k<=4; ++k) {
1906
    src1 += stride; src2 -= stride;
1907
    H += k*(src0[k] - src0[-k]);
1908
    V += k*(src1[0] - src2[ 0]);
1909
  }
1910
  H = ( 17*H+16 ) >> 5;
1911
  V = ( 17*V+16 ) >> 5;
1912

    
1913
  a = 16*(src1[0] + src2[8]+1) - 3*(V+H);
1914
  for(j=8; j>0; --j) {
1915
    int b = a;
1916
    a += V;
1917
    src[0] = cm[ (b    ) >> 5 ];
1918
    src[1] = cm[ (b+  H) >> 5 ];
1919
    src[2] = cm[ (b+2*H) >> 5 ];
1920
    src[3] = cm[ (b+3*H) >> 5 ];
1921
    src[4] = cm[ (b+4*H) >> 5 ];
1922
    src[5] = cm[ (b+5*H) >> 5 ];
1923
    src[6] = cm[ (b+6*H) >> 5 ];
1924
    src[7] = cm[ (b+7*H) >> 5 ];
1925
    src += stride;
1926
  }
1927
}
1928

    
1929
static inline void mc_dir_part(H264Context *h, Picture *pic, int n, int square, int chroma_height, int delta, int list,
1930
                           uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
1931
                           int src_x_offset, int src_y_offset,
1932
                           qpel_mc_func *qpix_op, h264_chroma_mc_func chroma_op){
1933
    MpegEncContext * const s = &h->s;
1934
    const int mx= h->mv_cache[list][ scan8[n] ][0] + src_x_offset*8;
1935
    const int my= h->mv_cache[list][ scan8[n] ][1] + src_y_offset*8;
1936
    const int luma_xy= (mx&3) + ((my&3)<<2);
1937
    uint8_t * src_y = pic->data[0] + (mx>>2) + (my>>2)*s->linesize;
1938
    uint8_t * src_cb= pic->data[1] + (mx>>3) + (my>>3)*s->uvlinesize;
1939
    uint8_t * src_cr= pic->data[2] + (mx>>3) + (my>>3)*s->uvlinesize;
1940
    int extra_width= (s->flags&CODEC_FLAG_EMU_EDGE) ? 0 : 16; //FIXME increase edge?, IMHO not worth it
1941
    int extra_height= extra_width;
1942
    int emu=0;
1943
    const int full_mx= mx>>2;
1944
    const int full_my= my>>2;
1945
    
1946
    assert(pic->data[0]);
1947
    
1948
    if(mx&7) extra_width -= 3;
1949
    if(my&7) extra_height -= 3;
1950
    
1951
    if(   full_mx < 0-extra_width 
1952
       || full_my < 0-extra_height 
1953
       || full_mx + 16/*FIXME*/ > s->width + extra_width 
1954
       || full_my + 16/*FIXME*/ > s->height + extra_height){
1955
        ff_emulated_edge_mc(s->edge_emu_buffer, src_y - 2 - 2*s->linesize, s->linesize, 16+5, 16+5/*FIXME*/, full_mx-2, full_my-2, s->width, s->height);
1956
            src_y= s->edge_emu_buffer + 2 + 2*s->linesize;
1957
        emu=1;
1958
    }
1959
    
1960
    qpix_op[luma_xy](dest_y, src_y, s->linesize); //FIXME try variable height perhaps?
1961
    if(!square){
1962
        qpix_op[luma_xy](dest_y + delta, src_y + delta, s->linesize);
1963
    }
1964
    
1965
    if(s->flags&CODEC_FLAG_GRAY) return;
1966
    
1967
    if(emu){
1968
        ff_emulated_edge_mc(s->edge_emu_buffer, src_cb, s->uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), s->width>>1, s->height>>1);
1969
            src_cb= s->edge_emu_buffer;
1970
    }
1971
    chroma_op(dest_cb, src_cb, s->uvlinesize, chroma_height, mx&7, my&7);
1972

    
1973
    if(emu){
1974
        ff_emulated_edge_mc(s->edge_emu_buffer, src_cr, s->uvlinesize, 9, 9/*FIXME*/, (mx>>3), (my>>3), s->width>>1, s->height>>1);
1975
            src_cr= s->edge_emu_buffer;
1976
    }
1977
    chroma_op(dest_cr, src_cr, s->uvlinesize, chroma_height, mx&7, my&7);
1978
}
1979

    
1980
static inline void mc_part(H264Context *h, int n, int square, int chroma_height, int delta,
1981
                           uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
1982
                           int x_offset, int y_offset,
1983
                           qpel_mc_func *qpix_put, h264_chroma_mc_func chroma_put,
1984
                           qpel_mc_func *qpix_avg, h264_chroma_mc_func chroma_avg,
1985
                           int list0, int list1){
1986
    MpegEncContext * const s = &h->s;
1987
    qpel_mc_func *qpix_op=  qpix_put;
1988
    h264_chroma_mc_func chroma_op= chroma_put;
1989
    
1990
    dest_y  += 2*x_offset + 2*y_offset*s->  linesize;
1991
    dest_cb +=   x_offset +   y_offset*s->uvlinesize;
1992
    dest_cr +=   x_offset +   y_offset*s->uvlinesize;
1993
    x_offset += 8*s->mb_x;
1994
    y_offset += 8*s->mb_y;
1995
    
1996
    if(list0){
1997
        Picture *ref= &h->ref_list[0][ h->ref_cache[0][ scan8[n] ] ];
1998
        mc_dir_part(h, ref, n, square, chroma_height, delta, 0,
1999
                           dest_y, dest_cb, dest_cr, x_offset, y_offset,
2000
                           qpix_op, chroma_op);
2001

    
2002
        qpix_op=  qpix_avg;
2003
        chroma_op= chroma_avg;
2004
    }
2005

    
2006
    if(list1){
2007
        Picture *ref= &h->ref_list[1][ h->ref_cache[1][ scan8[n] ] ];
2008
        mc_dir_part(h, ref, n, square, chroma_height, delta, 1,
2009
                           dest_y, dest_cb, dest_cr, x_offset, y_offset,
2010
                           qpix_op, chroma_op);
2011
    }
2012
}
2013

    
2014
static void hl_motion(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
2015
                      qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
2016
                      qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg)){
2017
    MpegEncContext * const s = &h->s;
2018
    const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
2019
    const int mb_type= s->current_picture.mb_type[mb_xy];
2020
    
2021
    assert(IS_INTER(mb_type));
2022
    
2023
    if(IS_16X16(mb_type)){
2024
        mc_part(h, 0, 1, 8, 0, dest_y, dest_cb, dest_cr, 0, 0,
2025
                qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0],
2026
                IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
2027
    }else if(IS_16X8(mb_type)){
2028
        mc_part(h, 0, 0, 4, 8, dest_y, dest_cb, dest_cr, 0, 0,
2029
                qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
2030
                IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
2031
        mc_part(h, 8, 0, 4, 8, dest_y, dest_cb, dest_cr, 0, 4,
2032
                qpix_put[1], chroma_put[0], qpix_avg[1], chroma_avg[0],
2033
                IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
2034
    }else if(IS_8X16(mb_type)){
2035
        mc_part(h, 0, 0, 8, 8*s->linesize, dest_y, dest_cb, dest_cr, 0, 0,
2036
                qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
2037
                IS_DIR(mb_type, 0, 0), IS_DIR(mb_type, 0, 1));
2038
        mc_part(h, 4, 0, 8, 8*s->linesize, dest_y, dest_cb, dest_cr, 4, 0,
2039
                qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
2040
                IS_DIR(mb_type, 1, 0), IS_DIR(mb_type, 1, 1));
2041
    }else{
2042
        int i;
2043
        
2044
        assert(IS_8X8(mb_type));
2045

    
2046
        for(i=0; i<4; i++){
2047
            const int sub_mb_type= h->sub_mb_type[i];
2048
            const int n= 4*i;
2049
            int x_offset= (i&1)<<2;
2050
            int y_offset= (i&2)<<1;
2051

    
2052
            if(IS_SUB_8X8(sub_mb_type)){
2053
                mc_part(h, n, 1, 4, 0, dest_y, dest_cb, dest_cr, x_offset, y_offset,
2054
                    qpix_put[1], chroma_put[1], qpix_avg[1], chroma_avg[1],
2055
                    IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
2056
            }else if(IS_SUB_8X4(sub_mb_type)){
2057
                mc_part(h, n  , 0, 2, 4, dest_y, dest_cb, dest_cr, x_offset, y_offset,
2058
                    qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
2059
                    IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
2060
                mc_part(h, n+2, 0, 2, 4, dest_y, dest_cb, dest_cr, x_offset, y_offset+2,
2061
                    qpix_put[2], chroma_put[1], qpix_avg[2], chroma_avg[1],
2062
                    IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
2063
            }else if(IS_SUB_4X8(sub_mb_type)){
2064
                mc_part(h, n  , 0, 4, 4*s->linesize, dest_y, dest_cb, dest_cr, x_offset, y_offset,
2065
                    qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
2066
                    IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
2067
                mc_part(h, n+1, 0, 4, 4*s->linesize, dest_y, dest_cb, dest_cr, x_offset+2, y_offset,
2068
                    qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
2069
                    IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
2070
            }else{
2071
                int j;
2072
                assert(IS_SUB_4X4(sub_mb_type));
2073
                for(j=0; j<4; j++){
2074
                    int sub_x_offset= x_offset + 2*(j&1);
2075
                    int sub_y_offset= y_offset +   (j&2);
2076
                    mc_part(h, n+j, 1, 2, 0, dest_y, dest_cb, dest_cr, sub_x_offset, sub_y_offset,
2077
                        qpix_put[2], chroma_put[2], qpix_avg[2], chroma_avg[2],
2078
                        IS_DIR(sub_mb_type, 0, 0), IS_DIR(sub_mb_type, 0, 1));
2079
                }
2080
            }
2081
        }
2082
    }
2083
}
2084

    
2085
static void decode_init_vlc(H264Context *h){
2086
    static int done = 0;
2087

    
2088
    if (!done) {
2089
        int i;
2090
        done = 1;
2091

    
2092
        init_vlc(&chroma_dc_coeff_token_vlc, CHROMA_DC_COEFF_TOKEN_VLC_BITS, 4*5, 
2093
                 &chroma_dc_coeff_token_len [0], 1, 1,
2094
                 &chroma_dc_coeff_token_bits[0], 1, 1, 1);
2095

    
2096
        for(i=0; i<4; i++){
2097
            init_vlc(&coeff_token_vlc[i], COEFF_TOKEN_VLC_BITS, 4*17, 
2098
                     &coeff_token_len [i][0], 1, 1,
2099
                     &coeff_token_bits[i][0], 1, 1, 1);
2100
        }
2101

    
2102
        for(i=0; i<3; i++){
2103
            init_vlc(&chroma_dc_total_zeros_vlc[i], CHROMA_DC_TOTAL_ZEROS_VLC_BITS, 4,
2104
                     &chroma_dc_total_zeros_len [i][0], 1, 1,
2105
                     &chroma_dc_total_zeros_bits[i][0], 1, 1, 1);
2106
        }
2107
        for(i=0; i<15; i++){
2108
            init_vlc(&total_zeros_vlc[i], TOTAL_ZEROS_VLC_BITS, 16, 
2109
                     &total_zeros_len [i][0], 1, 1,
2110
                     &total_zeros_bits[i][0], 1, 1, 1);
2111
        }
2112

    
2113
        for(i=0; i<6; i++){
2114
            init_vlc(&run_vlc[i], RUN_VLC_BITS, 7, 
2115
                     &run_len [i][0], 1, 1,
2116
                     &run_bits[i][0], 1, 1, 1);
2117
        }
2118
        init_vlc(&run7_vlc, RUN7_VLC_BITS, 16, 
2119
                 &run_len [6][0], 1, 1,
2120
                 &run_bits[6][0], 1, 1, 1);
2121
    }
2122
}
2123

    
2124
/**
2125
 * Sets the intra prediction function pointers.
2126
 */
2127
static void init_pred_ptrs(H264Context *h){
2128
//    MpegEncContext * const s = &h->s;
2129

    
2130
    h->pred4x4[VERT_PRED           ]= pred4x4_vertical_c;
2131
    h->pred4x4[HOR_PRED            ]= pred4x4_horizontal_c;
2132
    h->pred4x4[DC_PRED             ]= pred4x4_dc_c;
2133
    h->pred4x4[DIAG_DOWN_LEFT_PRED ]= pred4x4_down_left_c;
2134
    h->pred4x4[DIAG_DOWN_RIGHT_PRED]= pred4x4_down_right_c;
2135
    h->pred4x4[VERT_RIGHT_PRED     ]= pred4x4_vertical_right_c;
2136
    h->pred4x4[HOR_DOWN_PRED       ]= pred4x4_horizontal_down_c;
2137
    h->pred4x4[VERT_LEFT_PRED      ]= pred4x4_vertical_left_c;
2138
    h->pred4x4[HOR_UP_PRED         ]= pred4x4_horizontal_up_c;
2139
    h->pred4x4[LEFT_DC_PRED        ]= pred4x4_left_dc_c;
2140
    h->pred4x4[TOP_DC_PRED         ]= pred4x4_top_dc_c;
2141
    h->pred4x4[DC_128_PRED         ]= pred4x4_128_dc_c;
2142

    
2143
    h->pred8x8[DC_PRED8x8     ]= pred8x8_dc_c;
2144
    h->pred8x8[VERT_PRED8x8   ]= pred8x8_vertical_c;
2145
    h->pred8x8[HOR_PRED8x8    ]= pred8x8_horizontal_c;
2146
    h->pred8x8[PLANE_PRED8x8  ]= pred8x8_plane_c;
2147
    h->pred8x8[LEFT_DC_PRED8x8]= pred8x8_left_dc_c;
2148
    h->pred8x8[TOP_DC_PRED8x8 ]= pred8x8_top_dc_c;
2149
    h->pred8x8[DC_128_PRED8x8 ]= pred8x8_128_dc_c;
2150

    
2151
    h->pred16x16[DC_PRED8x8     ]= pred16x16_dc_c;
2152
    h->pred16x16[VERT_PRED8x8   ]= pred16x16_vertical_c;
2153
    h->pred16x16[HOR_PRED8x8    ]= pred16x16_horizontal_c;
2154
    h->pred16x16[PLANE_PRED8x8  ]= pred16x16_plane_c;
2155
    h->pred16x16[LEFT_DC_PRED8x8]= pred16x16_left_dc_c;
2156
    h->pred16x16[TOP_DC_PRED8x8 ]= pred16x16_top_dc_c;
2157
    h->pred16x16[DC_128_PRED8x8 ]= pred16x16_128_dc_c;
2158
}
2159

    
2160
static void free_tables(H264Context *h){
2161
    av_freep(&h->intra4x4_pred_mode);
2162
    av_freep(&h->chroma_pred_mode_table);
2163
    av_freep(&h->cbp_table);
2164
    av_freep(&h->mvd_table[0]);
2165
    av_freep(&h->mvd_table[1]);
2166
    av_freep(&h->non_zero_count);
2167
    av_freep(&h->slice_table_base);
2168
    av_freep(&h->top_border);
2169
    h->slice_table= NULL;
2170

    
2171
    av_freep(&h->mb2b_xy);
2172
    av_freep(&h->mb2b8_xy);
2173
}
2174

    
2175
/**
2176
 * allocates tables.
2177
 * needs widzh/height
2178
 */
2179
static int alloc_tables(H264Context *h){
2180
    MpegEncContext * const s = &h->s;
2181
    const int big_mb_num= s->mb_stride * (s->mb_height+1);
2182
    int x,y;
2183

    
2184
    CHECKED_ALLOCZ(h->intra4x4_pred_mode, big_mb_num * 8  * sizeof(uint8_t))
2185

    
2186
    CHECKED_ALLOCZ(h->non_zero_count    , big_mb_num * 16 * sizeof(uint8_t))
2187
    CHECKED_ALLOCZ(h->slice_table_base  , big_mb_num * sizeof(uint8_t))
2188
    CHECKED_ALLOCZ(h->top_border       , s->mb_width * (16+8+8) * sizeof(uint8_t))
2189
    CHECKED_ALLOCZ(h->cbp_table, big_mb_num * sizeof(uint16_t))
2190

    
2191
    if( h->pps.cabac ) {
2192
        CHECKED_ALLOCZ(h->chroma_pred_mode_table, big_mb_num * sizeof(uint8_t))
2193
        CHECKED_ALLOCZ(h->mvd_table[0], 32*big_mb_num * sizeof(uint16_t));
2194
        CHECKED_ALLOCZ(h->mvd_table[1], 32*big_mb_num * sizeof(uint16_t));
2195
    }
2196

    
2197
    memset(h->slice_table_base, -1, big_mb_num  * sizeof(uint8_t));
2198
    h->slice_table= h->slice_table_base + s->mb_stride + 1;
2199

    
2200
    CHECKED_ALLOCZ(h->mb2b_xy  , big_mb_num * sizeof(uint16_t));
2201
    CHECKED_ALLOCZ(h->mb2b8_xy , big_mb_num * sizeof(uint16_t));
2202
    for(y=0; y<s->mb_height; y++){
2203
        for(x=0; x<s->mb_width; x++){
2204
            const int mb_xy= x + y*s->mb_stride;
2205
            const int b_xy = 4*x + 4*y*h->b_stride;
2206
            const int b8_xy= 2*x + 2*y*h->b8_stride;
2207
        
2208
            h->mb2b_xy [mb_xy]= b_xy;
2209
            h->mb2b8_xy[mb_xy]= b8_xy;
2210
        }
2211
    }
2212
    
2213
    return 0;
2214
fail:
2215
    free_tables(h);
2216
    return -1;
2217
}
2218

    
2219
static void common_init(H264Context *h){
2220
    MpegEncContext * const s = &h->s;
2221

    
2222
    s->width = s->avctx->width;
2223
    s->height = s->avctx->height;
2224
    s->codec_id= s->avctx->codec->id;
2225
    
2226
    init_pred_ptrs(h);
2227

    
2228
    s->unrestricted_mv=1;
2229
    s->decode=1; //FIXME
2230
}
2231

    
2232
static int decode_init(AVCodecContext *avctx){
2233
    H264Context *h= avctx->priv_data;
2234
    MpegEncContext * const s = &h->s;
2235

    
2236
    MPV_decode_defaults(s);
2237
    
2238
    s->avctx = avctx;
2239
    common_init(h);
2240

    
2241
    s->out_format = FMT_H264;
2242
    s->workaround_bugs= avctx->workaround_bugs;
2243

    
2244
    // set defaults
2245
//    s->decode_mb= ff_h263_decode_mb;
2246
    s->low_delay= 1;
2247
    avctx->pix_fmt= PIX_FMT_YUV420P;
2248

    
2249
    decode_init_vlc(h);
2250
    
2251
    if(avctx->codec_tag != 0x31637661) // avc1
2252
        h->is_avc = 0;
2253
    else {
2254
        if((avctx->extradata_size == 0) || (avctx->extradata == NULL)) {
2255
            av_log(avctx, AV_LOG_ERROR, "AVC codec requires avcC data\n");
2256
            return -1;
2257
        }
2258
        h->is_avc = 1;
2259
        h->got_avcC = 0;
2260
    }
2261

    
2262
    return 0;
2263
}
2264

    
2265
static void frame_start(H264Context *h){
2266
    MpegEncContext * const s = &h->s;
2267
    int i;
2268

    
2269
    MPV_frame_start(s, s->avctx);
2270
    ff_er_frame_start(s);
2271
    h->mmco_index=0;
2272

    
2273
    assert(s->linesize && s->uvlinesize);
2274

    
2275
    for(i=0; i<16; i++){
2276
        h->block_offset[i]= 4*((scan8[i] - scan8[0])&7) + 4*s->linesize*((scan8[i] - scan8[0])>>3);
2277
        h->chroma_subblock_offset[i]= 2*((scan8[i] - scan8[0])&7) + 2*s->uvlinesize*((scan8[i] - scan8[0])>>3);
2278
    }
2279
    for(i=0; i<4; i++){
2280
        h->block_offset[16+i]=
2281
        h->block_offset[20+i]= 4*((scan8[i] - scan8[0])&7) + 4*s->uvlinesize*((scan8[i] - scan8[0])>>3);
2282
    }
2283

    
2284
//    s->decode= (s->flags&CODEC_FLAG_PSNR) || !s->encoding || s->current_picture.reference /*|| h->contains_intra*/ || 1;
2285
}
2286

    
2287
static inline void backup_mb_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize){
2288
    MpegEncContext * const s = &h->s;
2289
    int i;
2290
    
2291
    src_y  -=   linesize;
2292
    src_cb -= uvlinesize;
2293
    src_cr -= uvlinesize;
2294

    
2295
    h->left_border[0]= h->top_border[s->mb_x][15];
2296
    for(i=1; i<17; i++){
2297
        h->left_border[i]= src_y[15+i*  linesize];
2298
    }
2299
    
2300
    *(uint64_t*)(h->top_border[s->mb_x]+0)= *(uint64_t*)(src_y +  16*linesize);
2301
    *(uint64_t*)(h->top_border[s->mb_x]+8)= *(uint64_t*)(src_y +8+16*linesize);
2302

    
2303
    if(!(s->flags&CODEC_FLAG_GRAY)){
2304
        h->left_border[17  ]= h->top_border[s->mb_x][16+7];
2305
        h->left_border[17+9]= h->top_border[s->mb_x][24+7];
2306
        for(i=1; i<9; i++){
2307
            h->left_border[i+17  ]= src_cb[7+i*uvlinesize];
2308
            h->left_border[i+17+9]= src_cr[7+i*uvlinesize];
2309
        }
2310
        *(uint64_t*)(h->top_border[s->mb_x]+16)= *(uint64_t*)(src_cb+8*uvlinesize);
2311
        *(uint64_t*)(h->top_border[s->mb_x]+24)= *(uint64_t*)(src_cr+8*uvlinesize);
2312
    }
2313
}
2314

    
2315
static inline void xchg_mb_border(H264Context *h, uint8_t *src_y, uint8_t *src_cb, uint8_t *src_cr, int linesize, int uvlinesize, int xchg){
2316
    MpegEncContext * const s = &h->s;
2317
    int temp8, i;
2318
    uint64_t temp64;
2319
    int deblock_left = (s->mb_x > 0);
2320
    int deblock_top  = (s->mb_y > 0);
2321

    
2322
    src_y  -=   linesize + 1;
2323
    src_cb -= uvlinesize + 1;
2324
    src_cr -= uvlinesize + 1;
2325

    
2326
#define XCHG(a,b,t,xchg)\
2327
t= a;\
2328
if(xchg)\
2329
    a= b;\
2330
b= t;
2331

    
2332
    if(deblock_left){
2333
        for(i = !deblock_top; i<17; i++){
2334
            XCHG(h->left_border[i     ], src_y [i*  linesize], temp8, xchg);
2335
        }
2336
    }
2337

    
2338
    if(deblock_top){
2339
        XCHG(*(uint64_t*)(h->top_border[s->mb_x]+0), *(uint64_t*)(src_y +1), temp64, xchg);
2340
        XCHG(*(uint64_t*)(h->top_border[s->mb_x]+8), *(uint64_t*)(src_y +9), temp64, 1);
2341
    }
2342

    
2343
    if(!(s->flags&CODEC_FLAG_GRAY)){
2344
        if(deblock_left){
2345
            for(i = !deblock_top; i<9; i++){
2346
                XCHG(h->left_border[i+17  ], src_cb[i*uvlinesize], temp8, xchg);
2347
                XCHG(h->left_border[i+17+9], src_cr[i*uvlinesize], temp8, xchg);
2348
            }
2349
        }
2350
        if(deblock_top){
2351
            XCHG(*(uint64_t*)(h->top_border[s->mb_x]+16), *(uint64_t*)(src_cb+1), temp64, 1);
2352
            XCHG(*(uint64_t*)(h->top_border[s->mb_x]+24), *(uint64_t*)(src_cr+1), temp64, 1);
2353
        }
2354
    }
2355
}
2356

    
2357
static void hl_decode_mb(H264Context *h){
2358
    MpegEncContext * const s = &h->s;
2359
    const int mb_x= s->mb_x;
2360
    const int mb_y= s->mb_y;
2361
    const int mb_xy= mb_x + mb_y*s->mb_stride;
2362
    const int mb_type= s->current_picture.mb_type[mb_xy];
2363
    uint8_t  *dest_y, *dest_cb, *dest_cr;
2364
    int linesize, uvlinesize /*dct_offset*/;
2365
    int i;
2366

    
2367
    if(!s->decode)
2368
        return;
2369

    
2370
    if(s->mb_skiped){
2371
    }
2372

    
2373
    dest_y  = s->current_picture.data[0] + (mb_y * 16* s->linesize  ) + mb_x * 16;
2374
    dest_cb = s->current_picture.data[1] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
2375
    dest_cr = s->current_picture.data[2] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
2376

    
2377
    if (h->mb_field_decoding_flag) {
2378
        linesize = s->linesize * 2;
2379
        uvlinesize = s->uvlinesize * 2;
2380
        if(mb_y&1){ //FIXME move out of this func?
2381
            dest_y -= s->linesize*15;
2382
            dest_cb-= s->linesize*7;
2383
            dest_cr-= s->linesize*7;
2384
        }
2385
    } else {
2386
        linesize = s->linesize;
2387
        uvlinesize = s->uvlinesize;
2388
//        dct_offset = s->linesize * 16;
2389
    }
2390

    
2391
    if(IS_INTRA(mb_type)){
2392
        if(h->deblocking_filter)
2393
            xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 1);
2394

    
2395
        if(!(s->flags&CODEC_FLAG_GRAY)){
2396
            h->pred8x8[ h->chroma_pred_mode ](dest_cb, uvlinesize);
2397
            h->pred8x8[ h->chroma_pred_mode ](dest_cr, uvlinesize);
2398
        }
2399

    
2400
        if(IS_INTRA4x4(mb_type)){
2401
            if(!s->encoding){
2402
                for(i=0; i<16; i++){
2403
                    uint8_t * const ptr= dest_y + h->block_offset[i];
2404
                    uint8_t *topright;
2405
                    const int dir= h->intra4x4_pred_mode_cache[ scan8[i] ];
2406
                    int tr;
2407

    
2408
                    if(dir == DIAG_DOWN_LEFT_PRED || dir == VERT_LEFT_PRED){
2409
                        const int topright_avail= (h->topright_samples_available<<i)&0x8000;
2410
                        assert(mb_y || linesize <= h->block_offset[i]);
2411
                        if(!topright_avail){
2412
                            tr= ptr[3 - linesize]*0x01010101;
2413
                            topright= (uint8_t*) &tr;
2414
                        }else if(i==5 && h->deblocking_filter){
2415
                            tr= *(uint32_t*)h->top_border[mb_x+1];
2416
                            topright= (uint8_t*) &tr;
2417
                        }else
2418
                            topright= ptr + 4 - linesize;
2419
                    }else
2420
                        topright= NULL;
2421

    
2422
                    h->pred4x4[ dir ](ptr, topright, linesize);
2423
                    if(h->non_zero_count_cache[ scan8[i] ]){
2424
                        if(s->codec_id == CODEC_ID_H264)
2425
                            s->dsp.h264_idct_add(ptr, h->mb + i*16, linesize);
2426
                        else
2427
                            svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, 0);
2428
                    }
2429
                }
2430
            }
2431
        }else{
2432
            h->pred16x16[ h->intra16x16_pred_mode ](dest_y , linesize);
2433
            if(s->codec_id == CODEC_ID_H264)
2434
                h264_luma_dc_dequant_idct_c(h->mb, s->qscale);
2435
            else
2436
                svq3_luma_dc_dequant_idct_c(h->mb, s->qscale);
2437
        }
2438
        if(h->deblocking_filter)
2439
            xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 0);
2440
    }else if(s->codec_id == CODEC_ID_H264){
2441
        hl_motion(h, dest_y, dest_cb, dest_cr,
2442
                  s->dsp.put_h264_qpel_pixels_tab, s->dsp.put_h264_chroma_pixels_tab, 
2443
                  s->dsp.avg_h264_qpel_pixels_tab, s->dsp.avg_h264_chroma_pixels_tab);
2444
    }
2445

    
2446

    
2447
    if(!IS_INTRA4x4(mb_type)){
2448
        if(s->codec_id == CODEC_ID_H264){
2449
            for(i=0; i<16; i++){
2450
                if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ //FIXME benchmark weird rule, & below
2451
                    uint8_t * const ptr= dest_y + h->block_offset[i];
2452
                    s->dsp.h264_idct_add(ptr, h->mb + i*16, linesize);
2453
                }
2454
            }
2455
        }else{
2456
            for(i=0; i<16; i++){
2457
                if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){ //FIXME benchmark weird rule, & below
2458
                    uint8_t * const ptr= dest_y + h->block_offset[i];
2459
                    svq3_add_idct_c(ptr, h->mb + i*16, linesize, s->qscale, IS_INTRA(mb_type) ? 1 : 0);
2460
                }
2461
            }
2462
        }
2463
    }
2464

    
2465
    if(!(s->flags&CODEC_FLAG_GRAY)){
2466
        chroma_dc_dequant_idct_c(h->mb + 16*16, h->chroma_qp);
2467
        chroma_dc_dequant_idct_c(h->mb + 16*16+4*16, h->chroma_qp);
2468
        if(s->codec_id == CODEC_ID_H264){
2469
            for(i=16; i<16+4; i++){
2470
                if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
2471
                    uint8_t * const ptr= dest_cb + h->block_offset[i];
2472
                    s->dsp.h264_idct_add(ptr, h->mb + i*16, uvlinesize);
2473
                }
2474
            }
2475
            for(i=20; i<20+4; i++){
2476
                if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
2477
                    uint8_t * const ptr= dest_cr + h->block_offset[i];
2478
                    s->dsp.h264_idct_add(ptr, h->mb + i*16, uvlinesize);
2479
                }
2480
            }
2481
        }else{
2482
            for(i=16; i<16+4; i++){
2483
                if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
2484
                    uint8_t * const ptr= dest_cb + h->block_offset[i];
2485
                    svq3_add_idct_c(ptr, h->mb + i*16, uvlinesize, chroma_qp[s->qscale + 12] - 12, 2);
2486
                }
2487
            }
2488
            for(i=20; i<20+4; i++){
2489
                if(h->non_zero_count_cache[ scan8[i] ] || h->mb[i*16]){
2490
                    uint8_t * const ptr= dest_cr + h->block_offset[i];
2491
                    svq3_add_idct_c(ptr, h->mb + i*16, uvlinesize, chroma_qp[s->qscale + 12] - 12, 2);
2492
                }
2493
            }
2494
        }
2495
    }
2496
    if(h->deblocking_filter) {
2497
        backup_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize);
2498
        filter_mb(h, mb_x, mb_y, dest_y, dest_cb, dest_cr);
2499
    }
2500
}
2501

    
2502
/**
2503
 * fills the default_ref_list.
2504
 */
2505
static int fill_default_ref_list(H264Context *h){
2506
    MpegEncContext * const s = &h->s;
2507
    int i;
2508
    Picture sorted_short_ref[16];
2509
    
2510
    if(h->slice_type==B_TYPE){
2511
        int out_i;
2512
        int limit= -1;
2513

    
2514
        for(out_i=0; out_i<h->short_ref_count; out_i++){
2515
            int best_i=-1;
2516
            int best_poc=INT_MAX;
2517

    
2518
            for(i=0; i<h->short_ref_count; i++){
2519
                const int poc= h->short_ref[i]->poc;
2520
                if(poc > limit && poc < best_poc){
2521
                    best_poc= poc;
2522
                    best_i= i;
2523
                }
2524
            }
2525
            
2526
            assert(best_i != -1);
2527
            
2528
            limit= best_poc;
2529
            sorted_short_ref[out_i]= *h->short_ref[best_i];
2530
        }
2531
    }
2532

    
2533
    if(s->picture_structure == PICT_FRAME){
2534
        if(h->slice_type==B_TYPE){
2535
            const int current_poc= s->current_picture_ptr->poc;
2536
            int list;
2537

    
2538
            for(list=0; list<2; list++){
2539
                int index=0;
2540

    
2541
                for(i=0; i<h->short_ref_count && index < h->ref_count[list]; i++){
2542
                    const int i2= list ? h->short_ref_count - i - 1 : i;
2543
                    const int poc= sorted_short_ref[i2].poc;
2544
                    
2545
                    if(sorted_short_ref[i2].reference != 3) continue; //FIXME refernce field shit
2546

    
2547
                    if((list==1 && poc > current_poc) || (list==0 && poc < current_poc)){
2548
                        h->default_ref_list[list][index  ]= sorted_short_ref[i2];
2549
                        h->default_ref_list[list][index++].pic_id= sorted_short_ref[i2].frame_num;
2550
                    }
2551
                }
2552

    
2553
                for(i=0; i<h->long_ref_count && index < h->ref_count[ list ]; i++){
2554
                    if(h->long_ref[i]->reference != 3) continue;
2555

    
2556
                    h->default_ref_list[ list ][index  ]= *h->long_ref[i];
2557
                    h->default_ref_list[ list ][index++].pic_id= i;;
2558
                }
2559
                
2560
                if(h->long_ref_count > 1 && h->short_ref_count==0){
2561
                    Picture temp= h->default_ref_list[1][0];
2562
                    h->default_ref_list[1][0] = h->default_ref_list[1][1];
2563
                    h->default_ref_list[1][0] = temp;
2564
                }
2565

    
2566
                if(index < h->ref_count[ list ])
2567
                    memset(&h->default_ref_list[list][index], 0, sizeof(Picture)*(h->ref_count[ list ] - index));
2568
            }
2569
        }else{
2570
            int index=0;
2571
            for(i=0; i<h->short_ref_count && index < h->ref_count[0]; i++){
2572
                if(h->short_ref[i]->reference != 3) continue; //FIXME refernce field shit
2573
                h->default_ref_list[0][index  ]= *h->short_ref[i];
2574
                h->default_ref_list[0][index++].pic_id= h->short_ref[i]->frame_num;
2575
            }
2576
            for(i=0; i<h->long_ref_count && index < h->ref_count[0]; i++){
2577
                if(h->long_ref[i]->reference != 3) continue;
2578
                h->default_ref_list[0][index  ]= *h->long_ref[i];
2579
                h->default_ref_list[0][index++].pic_id= i;;
2580
            }
2581
            if(index < h->ref_count[0])
2582
                memset(&h->default_ref_list[0][index], 0, sizeof(Picture)*(h->ref_count[0] - index));
2583
        }
2584
    }else{ //FIELD
2585
        if(h->slice_type==B_TYPE){
2586
        }else{
2587
            //FIXME second field balh
2588
        }
2589
    }
2590
    return 0;
2591
}
2592

    
2593
static int decode_ref_pic_list_reordering(H264Context *h){
2594
    MpegEncContext * const s = &h->s;
2595
    int list;
2596
    
2597
    if(h->slice_type==I_TYPE || h->slice_type==SI_TYPE) return 0; //FIXME move beofre func
2598
    
2599
    for(list=0; list<2; list++){
2600
        memcpy(h->ref_list[list], h->default_ref_list[list], sizeof(Picture)*h->ref_count[list]);
2601

    
2602
        if(get_bits1(&s->gb)){
2603
            int pred= h->curr_pic_num;
2604
            int index;
2605

    
2606
            for(index=0; ; index++){
2607
                int reordering_of_pic_nums_idc= get_ue_golomb(&s->gb);
2608
                int pic_id;
2609
                int i;
2610
                
2611
                if(reordering_of_pic_nums_idc==3) 
2612
                    break;
2613
                
2614
                if(index >= h->ref_count[list]){
2615
                    av_log(h->s.avctx, AV_LOG_ERROR, "reference count overflow\n");
2616
                    return -1;
2617
                }
2618
                
2619
                if(reordering_of_pic_nums_idc<3){
2620
                    if(reordering_of_pic_nums_idc<2){
2621
                        const int abs_diff_pic_num= get_ue_golomb(&s->gb) + 1;
2622

    
2623
                        if(abs_diff_pic_num >= h->max_pic_num){
2624
                            av_log(h->s.avctx, AV_LOG_ERROR, "abs_diff_pic_num overflow\n");
2625
                            return -1;
2626
                        }
2627

    
2628
                        if(reordering_of_pic_nums_idc == 0) pred-= abs_diff_pic_num;
2629
                        else                                pred+= abs_diff_pic_num;
2630
                        pred &= h->max_pic_num - 1;
2631
                    
2632
                        for(i= h->ref_count[list]-1; i>=index; i--){
2633
                            if(h->ref_list[list][i].pic_id == pred && h->ref_list[list][i].long_ref==0)
2634
                                break;
2635
                        }
2636
                    }else{
2637
                        pic_id= get_ue_golomb(&s->gb); //long_term_pic_idx
2638

    
2639
                        for(i= h->ref_count[list]-1; i>=index; i--){
2640
                            if(h->ref_list[list][i].pic_id == pic_id && h->ref_list[list][i].long_ref==1)
2641
                                break;
2642
                        }
2643
                    }
2644

    
2645
                    if(i < index){
2646
                        av_log(h->s.avctx, AV_LOG_ERROR, "reference picture missing during reorder\n");
2647
                        memset(&h->ref_list[list][index], 0, sizeof(Picture)); //FIXME
2648
                    }else if(i > index){
2649
                        Picture tmp= h->ref_list[list][i];
2650
                        for(; i>index; i--){
2651
                            h->ref_list[list][i]= h->ref_list[list][i-1];
2652
                        }
2653
                        h->ref_list[list][index]= tmp;
2654
                    }
2655
                }else{
2656
                    av_log(h->s.avctx, AV_LOG_ERROR, "illegal reordering_of_pic_nums_idc\n");
2657
                    return -1;
2658
                }
2659
            }
2660
        }
2661

    
2662
        if(h->slice_type!=B_TYPE) break;
2663
    }
2664
    return 0;    
2665
}
2666

    
2667
static int pred_weight_table(H264Context *h){
2668
    MpegEncContext * const s = &h->s;
2669
    int list, i;
2670
    
2671
    h->luma_log2_weight_denom= get_ue_golomb(&s->gb);
2672
    h->chroma_log2_weight_denom= get_ue_golomb(&s->gb);
2673

    
2674
    for(list=0; list<2; list++){
2675
        for(i=0; i<h->ref_count[list]; i++){
2676
            int luma_weight_flag, chroma_weight_flag;
2677
            
2678
            luma_weight_flag= get_bits1(&s->gb);
2679
            if(luma_weight_flag){
2680
                h->luma_weight[list][i]= get_se_golomb(&s->gb);
2681
                h->luma_offset[list][i]= get_se_golomb(&s->gb);
2682
            }
2683

    
2684
            chroma_weight_flag= get_bits1(&s->gb);
2685
            if(chroma_weight_flag){
2686
                int j;
2687
                for(j=0; j<2; j++){
2688
                    h->chroma_weight[list][i][j]= get_se_golomb(&s->gb);
2689
                    h->chroma_offset[list][i][j]= get_se_golomb(&s->gb);
2690
                }
2691
            }
2692
        }
2693
        if(h->slice_type != B_TYPE) break;
2694
    }
2695
    return 0;
2696
}
2697

    
2698
/**
2699
 * instantaneos decoder refresh.
2700
 */
2701
static void idr(H264Context *h){
2702
    int i;
2703

    
2704
    for(i=0; i<h->long_ref_count; i++){
2705
        h->long_ref[i]->reference=0;
2706
        h->long_ref[i]= NULL;
2707
    }
2708
    h->long_ref_count=0;
2709

    
2710
    for(i=0; i<h->short_ref_count; i++){
2711
        h->short_ref[i]->reference=0;
2712
        h->short_ref[i]= NULL;
2713
    }
2714
    h->short_ref_count=0;
2715
}
2716

    
2717
/**
2718
 *
2719
 * @return the removed picture or NULL if an error occures
2720
 */
2721
static Picture * remove_short(H264Context *h, int frame_num){
2722
    MpegEncContext * const s = &h->s;
2723
    int i;
2724
    
2725
    if(s->avctx->debug&FF_DEBUG_MMCO)
2726
        av_log(h->s.avctx, AV_LOG_DEBUG, "remove short %d count %d\n", frame_num, h->short_ref_count);
2727
    
2728
    for(i=0; i<h->short_ref_count; i++){
2729
        Picture *pic= h->short_ref[i];
2730
        if(s->avctx->debug&FF_DEBUG_MMCO)
2731
            av_log(h->s.avctx, AV_LOG_DEBUG, "%d %d %p\n", i, pic->frame_num, pic);
2732
        if(pic->frame_num == frame_num){
2733
            h->short_ref[i]= NULL;
2734
            memmove(&h->short_ref[i], &h->short_ref[i+1], (h->short_ref_count - i - 1)*sizeof(Picture*));
2735
            h->short_ref_count--;
2736
            return pic;
2737
        }
2738
    }
2739
    return NULL;
2740
}
2741

    
2742
/**
2743
 *
2744
 * @return the removed picture or NULL if an error occures
2745
 */
2746
static Picture * remove_long(H264Context *h, int i){
2747
    Picture *pic;
2748

    
2749
    if(i >= h->long_ref_count) return NULL;
2750
    pic= h->long_ref[i];
2751
    if(pic==NULL) return NULL;
2752
    
2753
    h->long_ref[i]= NULL;
2754
    memmove(&h->long_ref[i], &h->long_ref[i+1], (h->long_ref_count - i - 1)*sizeof(Picture*));
2755
    h->long_ref_count--;
2756

    
2757
    return pic;
2758
}
2759

    
2760
/**
2761
 * Executes the reference picture marking (memory management control operations).
2762
 */
2763
static int execute_ref_pic_marking(H264Context *h, MMCO *mmco, int mmco_count){
2764
    MpegEncContext * const s = &h->s;
2765
    int i;
2766
    int current_is_long=0;
2767
    Picture *pic;
2768
    
2769
    if((s->avctx->debug&FF_DEBUG_MMCO) && mmco_count==0)
2770
        av_log(h->s.avctx, AV_LOG_DEBUG, "no mmco here\n");
2771
        
2772
    for(i=0; i<mmco_count; i++){
2773
        if(s->avctx->debug&FF_DEBUG_MMCO)
2774
            av_log(h->s.avctx, AV_LOG_DEBUG, "mmco:%d %d %d\n", h->mmco[i].opcode, h->mmco[i].short_frame_num, h->mmco[i].long_index);
2775

    
2776
        switch(mmco[i].opcode){
2777
        case MMCO_SHORT2UNUSED:
2778
            pic= remove_short(h, mmco[i].short_frame_num);
2779
            if(pic==NULL) return -1;
2780
            pic->reference= 0;
2781
            break;
2782
        case MMCO_SHORT2LONG:
2783
            pic= remove_long(h, mmco[i].long_index);
2784
            if(pic) pic->reference=0;
2785
            
2786
            h->long_ref[ mmco[i].long_index ]= remove_short(h, mmco[i].short_frame_num);
2787
            h->long_ref[ mmco[i].long_index ]->long_ref=1;
2788
            break;
2789
        case MMCO_LONG2UNUSED:
2790
            pic= remove_long(h, mmco[i].long_index);
2791
            if(pic==NULL) return -1;
2792
            pic->reference= 0;
2793
            break;
2794
        case MMCO_LONG:
2795
            pic= remove_long(h, mmco[i].long_index);
2796
            if(pic) pic->reference=0;
2797
            
2798
            h->long_ref[ mmco[i].long_index ]= s->current_picture_ptr;
2799
            h->long_ref[ mmco[i].long_index ]->long_ref=1;
2800
            h->long_ref_count++;
2801
            
2802
            current_is_long=1;
2803
            break;
2804
        case MMCO_SET_MAX_LONG:
2805
            assert(mmco[i].long_index <= 16);
2806
            while(mmco[i].long_index < h->long_ref_count){
2807
                pic= remove_long(h, mmco[i].long_index);
2808
                pic->reference=0;
2809
            }
2810
            while(mmco[i].long_index > h->long_ref_count){
2811
                h->long_ref[ h->long_ref_count++ ]= NULL;
2812
            }
2813
            break;
2814
        case MMCO_RESET:
2815
            while(h->short_ref_count){
2816
                pic= remove_short(h, h->short_ref[0]->frame_num);
2817
                pic->reference=0;
2818
            }
2819
            while(h->long_ref_count){
2820
                pic= remove_long(h, h->long_ref_count-1);
2821
                pic->reference=0;
2822
            }
2823
            break;
2824
        default: assert(0);
2825
        }
2826
    }
2827
    
2828
    if(!current_is_long){
2829
        pic= remove_short(h, s->current_picture_ptr->frame_num);
2830
        if(pic){
2831
            pic->reference=0;
2832
            av_log(h->s.avctx, AV_LOG_ERROR, "illegal short term buffer state detected\n");
2833
        }
2834
        
2835
        if(h->short_ref_count)
2836
            memmove(&h->short_ref[1], &h->short_ref[0], h->short_ref_count*sizeof(Picture*));
2837

    
2838
        h->short_ref[0]= s->current_picture_ptr;
2839
        h->short_ref[0]->long_ref=0;
2840
        h->short_ref_count++;
2841
    }
2842
    
2843
    return 0; 
2844
}
2845

    
2846
static int decode_ref_pic_marking(H264Context *h){
2847
    MpegEncContext * const s = &h->s;
2848
    int i;
2849
    
2850
    if(h->nal_unit_type == NAL_IDR_SLICE){ //FIXME fields
2851
        s->broken_link= get_bits1(&s->gb) -1;
2852
        h->mmco[0].long_index= get_bits1(&s->gb) - 1; // current_long_term_idx
2853
        if(h->mmco[0].long_index == -1)
2854
            h->mmco_index= 0;
2855
        else{
2856
            h->mmco[0].opcode= MMCO_LONG;
2857
            h->mmco_index= 1;
2858
        } 
2859
    }else{
2860
        if(get_bits1(&s->gb)){ // adaptive_ref_pic_marking_mode_flag
2861
            for(i= h->mmco_index; i<MAX_MMCO_COUNT; i++) { 
2862
                MMCOOpcode opcode= get_ue_golomb(&s->gb);;
2863

    
2864
                h->mmco[i].opcode= opcode;
2865
                if(opcode==MMCO_SHORT2UNUSED || opcode==MMCO_SHORT2LONG){
2866
                    h->mmco[i].short_frame_num= (h->frame_num - get_ue_golomb(&s->gb) - 1) & ((1<<h->sps.log2_max_frame_num)-1); //FIXME fields
2867
/*                    if(h->mmco[i].short_frame_num >= h->short_ref_count || h->short_ref[ h->mmco[i].short_frame_num ] == NULL){
2868
                        fprintf(stderr, "illegal short ref in memory management control operation %d\n", mmco);
2869
                        return -1;
2870
                    }*/
2871
                }
2872
                if(opcode==MMCO_SHORT2LONG || opcode==MMCO_LONG2UNUSED || opcode==MMCO_LONG || opcode==MMCO_SET_MAX_LONG){
2873
                    h->mmco[i].long_index= get_ue_golomb(&s->gb);
2874
                    if(/*h->mmco[i].long_index >= h->long_ref_count || h->long_ref[ h->mmco[i].long_index ] == NULL*/ h->mmco[i].long_index >= 16){
2875
                        av_log(h->s.avctx, AV_LOG_ERROR, "illegal long ref in memory management control operation %d\n", opcode);
2876
                        return -1;
2877
                    }
2878
                }
2879
                    
2880
                if(opcode > MMCO_LONG){
2881
                    av_log(h->s.avctx, AV_LOG_ERROR, "illegal memory management control operation %d\n", opcode);
2882
                    return -1;
2883
                }
2884
                if(opcode == MMCO_END)
2885
                    break;
2886
            }
2887
            h->mmco_index= i;
2888
        }else{
2889
            assert(h->long_ref_count + h->short_ref_count <= h->sps.ref_frame_count);
2890

    
2891
            if(h->long_ref_count + h->short_ref_count == h->sps.ref_frame_count){ //FIXME fields
2892
                h->mmco[0].opcode= MMCO_SHORT2UNUSED;
2893
                h->mmco[0].short_frame_num= h->short_ref[ h->short_ref_count - 1 ]->frame_num;
2894
                h->mmco_index= 1;
2895
            }else
2896
                h->mmco_index= 0;
2897
        }
2898
    }
2899
    
2900
    return 0; 
2901
}
2902

    
2903
static int init_poc(H264Context *h){
2904
    MpegEncContext * const s = &h->s;
2905
    const int max_frame_num= 1<<h->sps.log2_max_frame_num;
2906
    int field_poc[2];
2907

    
2908
    if(h->nal_unit_type == NAL_IDR_SLICE){
2909
        h->frame_num_offset= 0;
2910
    }else{
2911
        if(h->frame_num < h->prev_frame_num)
2912
            h->frame_num_offset= h->prev_frame_num_offset + max_frame_num;
2913
        else
2914
            h->frame_num_offset= h->prev_frame_num_offset;
2915
    }
2916

    
2917
    if(h->sps.poc_type==0){
2918
        const int max_poc_lsb= 1<<h->sps.log2_max_poc_lsb;
2919

    
2920
        if     (h->poc_lsb < h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb >= max_poc_lsb/2)
2921
            h->poc_msb = h->prev_poc_msb + max_poc_lsb;
2922
        else if(h->poc_lsb > h->prev_poc_lsb && h->prev_poc_lsb - h->poc_lsb < -max_poc_lsb/2)
2923
            h->poc_msb = h->prev_poc_msb - max_poc_lsb;
2924
        else
2925
            h->poc_msb = h->prev_poc_msb;
2926
//printf("poc: %d %d\n", h->poc_msb, h->poc_lsb);
2927
        field_poc[0] = 
2928
        field_poc[1] = h->poc_msb + h->poc_lsb;
2929
        if(s->picture_structure == PICT_FRAME) 
2930
            field_poc[1] += h->delta_poc_bottom;
2931
    }else if(h->sps.poc_type==1){
2932
        int abs_frame_num, expected_delta_per_poc_cycle, expectedpoc;
2933
        int i;
2934

    
2935
        if(h->sps.poc_cycle_length != 0)
2936
            abs_frame_num = h->frame_num_offset + h->frame_num;
2937
        else
2938
            abs_frame_num = 0;
2939

    
2940
        if(h->nal_ref_idc==0 && abs_frame_num > 0)
2941
            abs_frame_num--;
2942
            
2943
        expected_delta_per_poc_cycle = 0;
2944
        for(i=0; i < h->sps.poc_cycle_length; i++)
2945
            expected_delta_per_poc_cycle += h->sps.offset_for_ref_frame[ i ]; //FIXME integrate during sps parse
2946

    
2947
        if(abs_frame_num > 0){
2948
            int poc_cycle_cnt          = (abs_frame_num - 1) / h->sps.poc_cycle_length;
2949
            int frame_num_in_poc_cycle = (abs_frame_num - 1) % h->sps.poc_cycle_length;
2950

    
2951
            expectedpoc = poc_cycle_cnt * expected_delta_per_poc_cycle;
2952
            for(i = 0; i <= frame_num_in_poc_cycle; i++)
2953
                expectedpoc = expectedpoc + h->sps.offset_for_ref_frame[ i ];
2954
        } else
2955
            expectedpoc = 0;
2956

    
2957
        if(h->nal_ref_idc == 0) 
2958
            expectedpoc = expectedpoc + h->sps.offset_for_non_ref_pic;
2959
        
2960
        field_poc[0] = expectedpoc + h->delta_poc[0];
2961
        field_poc[1] = field_poc[0] + h->sps.offset_for_top_to_bottom_field;
2962

    
2963
        if(s->picture_structure == PICT_FRAME)
2964
            field_poc[1] += h->delta_poc[1];
2965
    }else{
2966
        int poc;
2967
        if(h->nal_unit_type == NAL_IDR_SLICE){
2968
            poc= 0;
2969
        }else{
2970
            if(h->nal_ref_idc) poc= 2*(h->frame_num_offset + h->frame_num);
2971
            else               poc= 2*(h->frame_num_offset + h->frame_num) - 1;
2972
        }
2973
        field_poc[0]= poc;
2974
        field_poc[1]= poc;
2975
    }
2976
    
2977
    if(s->picture_structure != PICT_BOTTOM_FIELD)
2978
        s->current_picture_ptr->field_poc[0]= field_poc[0];
2979
    if(s->picture_structure != PICT_TOP_FIELD)
2980
        s->current_picture_ptr->field_poc[1]= field_poc[1];
2981
    if(s->picture_structure == PICT_FRAME) // FIXME field pix?
2982
        s->current_picture_ptr->poc= FFMIN(field_poc[0], field_poc[1]);
2983

    
2984
    return 0;
2985
}
2986

    
2987
/**
2988
 * decodes a slice header.
2989
 * this will allso call MPV_common_init() and frame_start() as needed
2990
 */
2991
static int decode_slice_header(H264Context *h){
2992
    MpegEncContext * const s = &h->s;
2993
    int first_mb_in_slice, pps_id;
2994
    int num_ref_idx_active_override_flag;
2995
    static const uint8_t slice_type_map[5]= {P_TYPE, B_TYPE, I_TYPE, SP_TYPE, SI_TYPE};
2996

    
2997
    s->current_picture.reference= h->nal_ref_idc != 0;
2998

    
2999
    first_mb_in_slice= get_ue_golomb(&s->gb);
3000

    
3001
    h->slice_type= get_ue_golomb(&s->gb);
3002
    if(h->slice_type > 9){
3003
        av_log(h->s.avctx, AV_LOG_ERROR, "slice type too large (%d) at %d %d\n", h->slice_type, s->mb_x, s->mb_y);
3004
    }
3005
    if(h->slice_type > 4){
3006
        h->slice_type -= 5;
3007
        h->slice_type_fixed=1;
3008
    }else
3009
        h->slice_type_fixed=0;
3010
    
3011
    h->slice_type= slice_type_map[ h->slice_type ];
3012
    
3013
    s->pict_type= h->slice_type; // to make a few old func happy, its wrong though
3014
        
3015
    pps_id= get_ue_golomb(&s->gb);
3016
    if(pps_id>255){
3017
        av_log(h->s.avctx, AV_LOG_ERROR, "pps_id out of range\n");
3018
        return -1;
3019
    }
3020
    h->pps= h->pps_buffer[pps_id];
3021
    if(h->pps.slice_group_count == 0){
3022
        av_log(h->s.avctx, AV_LOG_ERROR, "non existing PPS referenced\n");
3023
        return -1;
3024
    }
3025

    
3026
    h->sps= h->sps_buffer[ h->pps.sps_id ];
3027
    if(h->sps.log2_max_frame_num == 0){
3028
        av_log(h->s.avctx, AV_LOG_ERROR, "non existing SPS referenced\n");
3029
        return -1;
3030
    }
3031
    
3032
    s->mb_width= h->sps.mb_width;
3033
    s->mb_height= h->sps.mb_height;
3034
    
3035
    h->b_stride=  s->mb_width*4;
3036
    h->b8_stride= s->mb_width*2;
3037

    
3038
    s->mb_x = first_mb_in_slice % s->mb_width;
3039
    s->mb_y = first_mb_in_slice / s->mb_width; //FIXME AFFW
3040
    
3041
    s->width = 16*s->mb_width - 2*(h->sps.crop_left + h->sps.crop_right );
3042
    if(h->sps.frame_mbs_only_flag)
3043
        s->height= 16*s->mb_height - 2*(h->sps.crop_top  + h->sps.crop_bottom);
3044
    else
3045
        s->height= 16*s->mb_height - 4*(h->sps.crop_top  + h->sps.crop_bottom); //FIXME recheck
3046
    
3047
    if (s->context_initialized 
3048
        && (   s->width != s->avctx->width || s->height != s->avctx->height)) {
3049
        free_tables(h);
3050
        MPV_common_end(s);
3051
    }
3052
    if (!s->context_initialized) {
3053
        if (MPV_common_init(s) < 0)
3054
            return -1;
3055

    
3056
        alloc_tables(h);
3057

    
3058
        s->avctx->width = s->width;
3059
        s->avctx->height = s->height;
3060
        s->avctx->sample_aspect_ratio= h->sps.sar;
3061

    
3062
        if(h->sps.timing_info_present_flag && h->sps.fixed_frame_rate_flag){
3063
            s->avctx->frame_rate = h->sps.time_scale;
3064
            s->avctx->frame_rate_base = h->sps.num_units_in_tick;
3065
        }
3066
    }
3067

    
3068
    if(first_mb_in_slice == 0){
3069
        frame_start(h);
3070
    }
3071

    
3072
    s->current_picture_ptr->frame_num= //FIXME frame_num cleanup
3073
    h->frame_num= get_bits(&s->gb, h->sps.log2_max_frame_num);
3074

    
3075
    if(h->sps.frame_mbs_only_flag){
3076
        s->picture_structure= PICT_FRAME;
3077
    }else{
3078
        if(get_bits1(&s->gb)) //field_pic_flag
3079
            s->picture_structure= PICT_TOP_FIELD + get_bits1(&s->gb); //bottom_field_flag
3080
        else
3081
            s->picture_structure= PICT_FRAME;
3082
    }
3083

    
3084
    if(s->picture_structure==PICT_FRAME){
3085
        h->curr_pic_num=   h->frame_num;
3086
        h->max_pic_num= 1<< h->sps.log2_max_frame_num;
3087
    }else{
3088
        h->curr_pic_num= 2*h->frame_num;
3089
        h->max_pic_num= 1<<(h->sps.log2_max_frame_num + 1);
3090
    }
3091
        
3092
    if(h->nal_unit_type == NAL_IDR_SLICE){
3093
        get_ue_golomb(&s->gb); /* idr_pic_id */
3094
    }
3095
   
3096
    if(h->sps.poc_type==0){
3097
        h->poc_lsb= get_bits(&s->gb, h->sps.log2_max_poc_lsb);
3098
        
3099
        if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME){
3100
            h->delta_poc_bottom= get_se_golomb(&s->gb);
3101
        }
3102
    }
3103
    
3104
    if(h->sps.poc_type==1 && !h->sps.delta_pic_order_always_zero_flag){
3105
        h->delta_poc[0]= get_se_golomb(&s->gb);
3106
        
3107
        if(h->pps.pic_order_present==1 && s->picture_structure==PICT_FRAME)
3108
            h->delta_poc[1]= get_se_golomb(&s->gb);
3109
    }
3110
    
3111
    init_poc(h);
3112
    
3113
    if(h->pps.redundant_pic_cnt_present){
3114
        h->redundant_pic_count= get_ue_golomb(&s->gb);
3115
    }
3116

    
3117
    //set defaults, might be overriden a few line later
3118
    h->ref_count[0]= h->pps.ref_count[0];
3119
    h->ref_count[1]= h->pps.ref_count[1];
3120

    
3121
    if(h->slice_type == P_TYPE || h->slice_type == SP_TYPE || h->slice_type == B_TYPE){
3122
        if(h->slice_type == B_TYPE){
3123
            h->direct_spatial_mv_pred= get_bits1(&s->gb);
3124
        }
3125
        num_ref_idx_active_override_flag= get_bits1(&s->gb);
3126
    
3127
        if(num_ref_idx_active_override_flag){
3128
            h->ref_count[0]= get_ue_golomb(&s->gb) + 1;
3129
            if(h->slice_type==B_TYPE)
3130
                h->ref_count[1]= get_ue_golomb(&s->gb) + 1;
3131

    
3132
            if(h->ref_count[0] > 32 || h->ref_count[1] > 32){
3133
                av_log(h->s.avctx, AV_LOG_ERROR, "reference overflow\n");
3134
                return -1;
3135
            }
3136
        }
3137
    }
3138

    
3139
    if(first_mb_in_slice == 0){
3140
        fill_default_ref_list(h);
3141
    }
3142

    
3143
    decode_ref_pic_list_reordering(h);
3144

    
3145
    if(   (h->pps.weighted_pred          && (h->slice_type == P_TYPE || h->slice_type == SP_TYPE )) 
3146
       || (h->pps.weighted_bipred_idc==1 && h->slice_type==B_TYPE ) )
3147
        pred_weight_table(h);
3148
    
3149
    if(s->current_picture.reference)
3150
        decode_ref_pic_marking(h);
3151

    
3152
    if( h->slice_type != I_TYPE && h->slice_type != SI_TYPE && h->pps.cabac )
3153
        h->cabac_init_idc = get_ue_golomb(&s->gb);
3154

    
3155
    h->last_qscale_diff = 0;
3156
    s->qscale = h->pps.init_qp + get_se_golomb(&s->gb);
3157
    if(s->qscale<0 || s->qscale>51){
3158
        av_log(s->avctx, AV_LOG_ERROR, "QP %d out of range\n", s->qscale);
3159
        return -1;
3160
    }
3161
    //FIXME qscale / qp ... stuff
3162
    if(h->slice_type == SP_TYPE){
3163
        get_bits1(&s->gb); /* sp_for_switch_flag */
3164
    }
3165
    if(h->slice_type==SP_TYPE || h->slice_type == SI_TYPE){
3166
        get_se_golomb(&s->gb); /* slice_qs_delta */
3167
    }
3168

    
3169
    h->deblocking_filter = 1;
3170
    h->slice_alpha_c0_offset = 0;
3171
    h->slice_beta_offset = 0;
3172
    if( h->pps.deblocking_filter_parameters_present ) {
3173
        h->deblocking_filter= get_ue_golomb(&s->gb);
3174
        if(h->deblocking_filter < 2) 
3175
            h->deblocking_filter^= 1; // 1<->0
3176

    
3177
        if( h->deblocking_filter ) {
3178
            h->slice_alpha_c0_offset = get_se_golomb(&s->gb) << 1;
3179
            h->slice_beta_offset = get_se_golomb(&s->gb) << 1;
3180
        }
3181
    }
3182

    
3183
#if 0 //FMO
3184
    if( h->pps.num_slice_groups > 1  && h->pps.mb_slice_group_map_type >= 3 && h->pps.mb_slice_group_map_type <= 5)
3185
        slice_group_change_cycle= get_bits(&s->gb, ?);
3186
#endif
3187

    
3188
    if(s->avctx->debug&FF_DEBUG_PICT_INFO){
3189
        av_log(h->s.avctx, AV_LOG_DEBUG, "mb:%d %c pps:%d frame:%d poc:%d/%d ref:%d/%d qp:%d loop:%d\n", 
3190
               first_mb_in_slice, 
3191
               av_get_pict_type_char(h->slice_type),
3192
               pps_id, h->frame_num,
3193
               s->current_picture_ptr->field_poc[0], s->current_picture_ptr->field_poc[1],
3194
               h->ref_count[0], h->ref_count[1],
3195
               s->qscale,
3196
               h->deblocking_filter
3197
               );
3198
    }
3199

    
3200
    return 0;
3201
}
3202

    
3203
/**
3204
 *
3205
 */
3206
static inline int get_level_prefix(GetBitContext *gb){
3207
    unsigned int buf;
3208
    int log;
3209
    
3210
    OPEN_READER(re, gb);
3211
    UPDATE_CACHE(re, gb);
3212
    buf=GET_CACHE(re, gb);
3213
    
3214
    log= 32 - av_log2(buf);
3215
#ifdef TRACE
3216
    print_bin(buf>>(32-log), log);
3217
    av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d lpr @%5d in %s get_level_prefix\n", buf>>(32-log), log, log-1, get_bits_count(gb), __FILE__);
3218
#endif
3219

    
3220
    LAST_SKIP_BITS(re, gb, log);
3221
    CLOSE_READER(re, gb);
3222

    
3223
    return log-1;
3224
}
3225

    
3226
/**
3227
 * decodes a residual block.
3228
 * @param n block index
3229
 * @param scantable scantable
3230
 * @param max_coeff number of coefficients in the block
3231
 * @return <0 if an error occured
3232
 */
3233
static int decode_residual(H264Context *h, GetBitContext *gb, DCTELEM *block, int n, const uint8_t *scantable, int qp, int max_coeff){
3234
    MpegEncContext * const s = &h->s;
3235
    const uint16_t *qmul= dequant_coeff[qp];
3236
    static const int coeff_token_table_index[17]= {0, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3};
3237
    int level[16], run[16];
3238
    int suffix_length, zeros_left, coeff_num, coeff_token, total_coeff, i, trailing_ones;
3239

    
3240
    //FIXME put trailing_onex into the context
3241

    
3242
    if(n == CHROMA_DC_BLOCK_INDEX){
3243
        coeff_token= get_vlc2(gb, chroma_dc_coeff_token_vlc.table, CHROMA_DC_COEFF_TOKEN_VLC_BITS, 1);
3244
        total_coeff= coeff_token>>2;
3245
    }else{    
3246
        if(n == LUMA_DC_BLOCK_INDEX){
3247
            total_coeff= pred_non_zero_count(h, 0);
3248
            coeff_token= get_vlc2(gb, coeff_token_vlc[ coeff_token_table_index[total_coeff] ].table, COEFF_TOKEN_VLC_BITS, 2);
3249
            total_coeff= coeff_token>>2;
3250
        }else{
3251
            total_coeff= pred_non_zero_count(h, n);
3252
            coeff_token= get_vlc2(gb, coeff_token_vlc[ coeff_token_table_index[total_coeff] ].table, COEFF_TOKEN_VLC_BITS, 2);
3253
            total_coeff= coeff_token>>2;
3254
            h->non_zero_count_cache[ scan8[n] ]= total_coeff;
3255
        }
3256
    }
3257

    
3258
    //FIXME set last_non_zero?
3259

    
3260
    if(total_coeff==0)
3261
        return 0;
3262
        
3263
    trailing_ones= coeff_token&3;
3264
    tprintf("trailing:%d, total:%d\n", trailing_ones, total_coeff);
3265
    assert(total_coeff<=16);
3266
    
3267
    for(i=0; i<trailing_ones; i++){
3268
        level[i]= 1 - 2*get_bits1(gb);
3269
    }
3270

    
3271
    suffix_length= total_coeff > 10 && trailing_ones < 3;
3272

    
3273
    for(; i<total_coeff; i++){
3274
        const int prefix= get_level_prefix(gb);
3275
        int level_code, mask;
3276

    
3277
        if(prefix<14){ //FIXME try to build a large unified VLC table for all this
3278
            if(suffix_length)
3279
                level_code= (prefix<<suffix_length) + get_bits(gb, suffix_length); //part
3280
            else
3281
                level_code= (prefix<<suffix_length); //part
3282
        }else if(prefix==14){
3283
            if(suffix_length)
3284
                level_code= (prefix<<suffix_length) + get_bits(gb, suffix_length); //part
3285
            else
3286
                level_code= prefix + get_bits(gb, 4); //part
3287
        }else if(prefix==15){
3288
            level_code= (prefix<<suffix_length) + get_bits(gb, 12); //part
3289
            if(suffix_length==0) level_code+=15; //FIXME doesnt make (much)sense
3290
        }else{
3291
            av_log(h->s.avctx, AV_LOG_ERROR, "prefix too large at %d %d\n", s->mb_x, s->mb_y);
3292
            return -1;
3293
        }
3294

    
3295
        if(i==trailing_ones && i<3) level_code+= 2; //FIXME split first iteration
3296

    
3297
        mask= -(level_code&1);
3298
        level[i]= (((2+level_code)>>1) ^ mask) - mask;
3299

    
3300
        if(suffix_length==0) suffix_length=1; //FIXME split first iteration
3301

    
3302
#if 1
3303
        if(ABS(level[i]) > (3<<(suffix_length-1)) && suffix_length<6) suffix_length++;
3304
#else        
3305
        if((2+level_code)>>1) > (3<<(suffix_length-1)) && suffix_length<6) suffix_length++;
3306
        /* ? == prefix > 2 or sth */
3307
#endif
3308
        tprintf("level: %d suffix_length:%d\n", level[i], suffix_length);
3309
    }
3310

    
3311
    if(total_coeff == max_coeff)
3312
        zeros_left=0;
3313
    else{
3314
        if(n == CHROMA_DC_BLOCK_INDEX)
3315
            zeros_left= get_vlc2(gb, chroma_dc_total_zeros_vlc[ total_coeff-1 ].table, CHROMA_DC_TOTAL_ZEROS_VLC_BITS, 1);
3316
        else
3317
            zeros_left= get_vlc2(gb, total_zeros_vlc[ total_coeff-1 ].table, TOTAL_ZEROS_VLC_BITS, 1);
3318
    }
3319
    
3320
    for(i=0; i<total_coeff-1; i++){
3321
        if(zeros_left <=0)
3322
            break;
3323
        else if(zeros_left < 7){
3324
            run[i]= get_vlc2(gb, run_vlc[zeros_left-1].table, RUN_VLC_BITS, 1);
3325
        }else{
3326
            run[i]= get_vlc2(gb, run7_vlc.table, RUN7_VLC_BITS, 2);
3327
        }
3328
        zeros_left -= run[i];
3329
    }
3330

    
3331
    if(zeros_left<0){
3332
        av_log(h->s.avctx, AV_LOG_ERROR, "negative number of zero coeffs at %d %d\n", s->mb_x, s->mb_y);
3333
        return -1;
3334
    }
3335
    
3336
    for(; i<total_coeff-1; i++){
3337
        run[i]= 0;
3338
    }
3339

    
3340
    run[i]= zeros_left;
3341

    
3342
    coeff_num=-1;
3343
    if(n > 24){
3344
        for(i=total_coeff-1; i>=0; i--){ //FIXME merge into rundecode?
3345
            int j;
3346

    
3347
            coeff_num += run[i] + 1; //FIXME add 1 earlier ?
3348
            j= scantable[ coeff_num ];
3349

    
3350
            block[j]= level[i];
3351
        }
3352
    }else{
3353
        for(i=total_coeff-1; i>=0; i--){ //FIXME merge into  rundecode?
3354
            int j;
3355

    
3356
            coeff_num += run[i] + 1; //FIXME add 1 earlier ?
3357
            j= scantable[ coeff_num ];
3358

    
3359
            block[j]= level[i] * qmul[j];
3360
//            printf("%d %d  ", block[j], qmul[j]);
3361
        }
3362
    }
3363
    return 0;
3364
}
3365

    
3366
/**
3367
 * decodes a macroblock
3368
 * @returns 0 if ok, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
3369
 */
3370
static int decode_mb_cavlc(H264Context *h){
3371
    MpegEncContext * const s = &h->s;
3372
    const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
3373
    int mb_type, partition_count, cbp;
3374

    
3375
    s->dsp.clear_blocks(h->mb); //FIXME avoid if allready clear (move after skip handlong?    
3376

    
3377
    tprintf("pic:%d mb:%d/%d\n", h->frame_num, s->mb_x, s->mb_y);
3378
    cbp = 0; /* avoid warning. FIXME: find a solution without slowing
3379
                down the code */
3380
    if(h->slice_type != I_TYPE && h->slice_type != SI_TYPE){
3381
        if(s->mb_skip_run==-1)
3382
            s->mb_skip_run= get_ue_golomb(&s->gb);
3383
        
3384
        if (s->mb_skip_run--) {
3385
            int mx, my;
3386
            /* skip mb */
3387
//FIXME b frame
3388
            mb_type= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P1L0;
3389

    
3390
            memset(h->non_zero_count[mb_xy], 0, 16);
3391
            memset(h->non_zero_count_cache + 8, 0, 8*5); //FIXME ugly, remove pfui
3392

    
3393
            if(h->sps.mb_aff && s->mb_skip_run==0 && (s->mb_y&1)==0){
3394
                h->mb_field_decoding_flag= get_bits1(&s->gb);
3395
            }
3396

    
3397
            if(h->mb_field_decoding_flag)
3398
                mb_type|= MB_TYPE_INTERLACED;
3399
            
3400
            fill_caches(h, mb_type); //FIXME check what is needed and what not ...
3401
            pred_pskip_motion(h, &mx, &my);
3402
            fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, 0, 1);
3403
            fill_rectangle(  h->mv_cache[0][scan8[0]], 4, 4, 8, pack16to32(mx,my), 4);
3404
            write_back_motion(h, mb_type);
3405

    
3406
            s->current_picture.mb_type[mb_xy]= mb_type; //FIXME SKIP type
3407
            s->current_picture.qscale_table[mb_xy]= s->qscale;
3408
            h->slice_table[ mb_xy ]= h->slice_num;
3409

    
3410
            h->prev_mb_skiped= 1;
3411
            return 0;
3412
        }
3413
    }
3414
    if(h->sps.mb_aff /* && !field pic FIXME needed? */){
3415
        if((s->mb_y&1)==0)
3416
            h->mb_field_decoding_flag = get_bits1(&s->gb);
3417
    }else
3418
        h->mb_field_decoding_flag=0; //FIXME som ed note ?!
3419
    
3420
    h->prev_mb_skiped= 0;
3421
    
3422
    mb_type= get_ue_golomb(&s->gb);
3423
    if(h->slice_type == B_TYPE){
3424
        if(mb_type < 23){
3425
            partition_count= b_mb_type_info[mb_type].partition_count;
3426
            mb_type=         b_mb_type_info[mb_type].type;
3427
        }else{
3428
            mb_type -= 23;
3429
            goto decode_intra_mb;
3430
        }
3431
    }else if(h->slice_type == P_TYPE /*|| h->slice_type == SP_TYPE */){
3432
        if(mb_type < 5){
3433
            partition_count= p_mb_type_info[mb_type].partition_count;
3434
            mb_type=         p_mb_type_info[mb_type].type;
3435
        }else{
3436
            mb_type -= 5;
3437
            goto decode_intra_mb;
3438
        }
3439
    }else{
3440
       assert(h->slice_type == I_TYPE);
3441
decode_intra_mb:
3442
        if(mb_type > 25){
3443
            av_log(h->s.avctx, AV_LOG_ERROR, "mb_type %d in %c slice to large at %d %d\n", mb_type, av_get_pict_type_char(h->slice_type), s->mb_x, s->mb_y);
3444
            return -1;
3445
        }
3446
        partition_count=0;
3447
        cbp= i_mb_type_info[mb_type].cbp;
3448
        h->intra16x16_pred_mode= i_mb_type_info[mb_type].pred_mode;
3449
        mb_type= i_mb_type_info[mb_type].type;
3450
    }
3451

    
3452
    if(h->mb_field_decoding_flag)
3453
        mb_type |= MB_TYPE_INTERLACED;
3454

    
3455
    s->current_picture.mb_type[mb_xy]= mb_type;
3456
    h->slice_table[ mb_xy ]= h->slice_num;
3457
    
3458
    if(IS_INTRA_PCM(mb_type)){
3459
        const uint8_t *ptr;
3460
        int x, y;
3461
        
3462
        // we assume these blocks are very rare so we dont optimize it
3463
        align_get_bits(&s->gb);
3464
        
3465
        ptr= s->gb.buffer + get_bits_count(&s->gb);
3466
    
3467
        for(y=0; y<16; y++){
3468
            const int index= 4*(y&3) + 64*(y>>2);
3469
            for(x=0; x<16; x++){
3470
                h->mb[index + (x&3) + 16*(x>>2)]= *(ptr++);
3471
            }
3472
        }
3473
        for(y=0; y<8; y++){
3474
            const int index= 256 + 4*(y&3) + 32*(y>>2);
3475
            for(x=0; x<8; x++){
3476
                h->mb[index + (x&3) + 16*(x>>2)]= *(ptr++);
3477
            }
3478
        }
3479
        for(y=0; y<8; y++){
3480
            const int index= 256 + 64 + 4*(y&3) + 32*(y>>2);
3481
            for(x=0; x<8; x++){
3482
                h->mb[index + (x&3) + 16*(x>>2)]= *(ptr++);
3483
            }
3484
        }
3485
    
3486
        skip_bits(&s->gb, 384); //FIXME check /fix the bitstream readers
3487
        
3488
        //FIXME deblock filter, non_zero_count_cache init ...
3489
        memset(h->non_zero_count[mb_xy], 16, 16);
3490
        s->current_picture.qscale_table[mb_xy]= s->qscale;
3491
        
3492
        return 0;
3493
    }
3494
        
3495
    fill_caches(h, mb_type);
3496

    
3497
    //mb_pred
3498
    if(IS_INTRA(mb_type)){
3499
//            init_top_left_availability(h);
3500
            if(IS_INTRA4x4(mb_type)){
3501
                int i;
3502

    
3503
//                fill_intra4x4_pred_table(h);
3504
                for(i=0; i<16; i++){
3505
                    const int mode_coded= !get_bits1(&s->gb);
3506
                    const int predicted_mode=  pred_intra_mode(h, i);
3507
                    int mode;
3508

    
3509
                    if(mode_coded){
3510
                        const int rem_mode= get_bits(&s->gb, 3);
3511
                        if(rem_mode<predicted_mode)
3512
                            mode= rem_mode;
3513
                        else
3514
                            mode= rem_mode + 1;
3515
                    }else{
3516
                        mode= predicted_mode;
3517
                    }
3518
                    
3519
                    h->intra4x4_pred_mode_cache[ scan8[i] ] = mode;
3520
                }
3521
                write_back_intra_pred_mode(h);
3522
                if( check_intra4x4_pred_mode(h) < 0)
3523
                    return -1;
3524
            }else{
3525
                h->intra16x16_pred_mode= check_intra_pred_mode(h, h->intra16x16_pred_mode);
3526
                if(h->intra16x16_pred_mode < 0)
3527
                    return -1;
3528
            }
3529
            h->chroma_pred_mode= get_ue_golomb(&s->gb);
3530

    
3531
            h->chroma_pred_mode= check_intra_pred_mode(h, h->chroma_pred_mode);
3532
            if(h->chroma_pred_mode < 0)
3533
                return -1;
3534
    }else if(partition_count==4){
3535
        int i, j, sub_partition_count[4], list, ref[2][4];
3536
        
3537
        if(h->slice_type == B_TYPE){
3538
            for(i=0; i<4; i++){
3539
                h->sub_mb_type[i]= get_ue_golomb(&s->gb);
3540
                if(h->sub_mb_type[i] >=13){
3541
                    av_log(h->s.avctx, AV_LOG_ERROR, "B sub_mb_type %d out of range at %d %d\n", h->sub_mb_type[i], s->mb_x, s->mb_y);
3542
                    return -1;
3543
                }
3544
                sub_partition_count[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
3545
                h->sub_mb_type[i]=      b_sub_mb_type_info[ h->sub_mb_type[i] ].type;
3546
            }
3547
        }else{
3548
            assert(h->slice_type == P_TYPE || h->slice_type == SP_TYPE); //FIXME SP correct ?
3549
            for(i=0; i<4; i++){
3550
                h->sub_mb_type[i]= get_ue_golomb(&s->gb);
3551
                if(h->sub_mb_type[i] >=4){
3552
                    av_log(h->s.avctx, AV_LOG_ERROR, "P sub_mb_type %d out of range at %d %d\n", h->sub_mb_type[i], s->mb_x, s->mb_y);
3553
                    return -1;
3554
                }
3555
                sub_partition_count[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
3556
                h->sub_mb_type[i]=      p_sub_mb_type_info[ h->sub_mb_type[i] ].type;
3557
            }
3558
        }
3559
        
3560
        for(list=0; list<2; list++){
3561
            const int ref_count= IS_REF0(mb_type) ? 1 : h->ref_count[list];
3562
            if(ref_count == 0) continue;
3563
            for(i=0; i<4; i++){
3564
                if(IS_DIR(h->sub_mb_type[i], 0, list) && !IS_DIRECT(h->sub_mb_type[i])){
3565
                    ref[list][i] = get_te0_golomb(&s->gb, ref_count); //FIXME init to 0 before and skip?
3566
                }else{
3567
                 //FIXME
3568
                    ref[list][i] = -1;
3569
                }
3570
            }
3571
        }
3572
        
3573
        for(list=0; list<2; list++){
3574
            const int ref_count= IS_REF0(mb_type) ? 1 : h->ref_count[list];
3575
            if(ref_count == 0) continue;
3576

    
3577
            for(i=0; i<4; i++){
3578
                h->ref_cache[list][ scan8[4*i]   ]=h->ref_cache[list][ scan8[4*i]+1 ]=
3579
                h->ref_cache[list][ scan8[4*i]+8 ]=h->ref_cache[list][ scan8[4*i]+9 ]= ref[list][i];
3580

    
3581
                if(IS_DIR(h->sub_mb_type[i], 0, list) && !IS_DIRECT(h->sub_mb_type[i])){
3582
                    const int sub_mb_type= h->sub_mb_type[i];
3583
                    const int block_width= (sub_mb_type & (MB_TYPE_16x16|MB_TYPE_16x8)) ? 2 : 1;
3584
                    for(j=0; j<sub_partition_count[i]; j++){
3585
                        int mx, my;
3586
                        const int index= 4*i + block_width*j;
3587
                        int16_t (* mv_cache)[2]= &h->mv_cache[list][ scan8[index] ];
3588
                        pred_motion(h, index, block_width, list, h->ref_cache[list][ scan8[index] ], &mx, &my);
3589
                        mx += get_se_golomb(&s->gb);
3590
                        my += get_se_golomb(&s->gb);
3591
                        tprintf("final mv:%d %d\n", mx, my);
3592

    
3593
                        if(IS_SUB_8X8(sub_mb_type)){
3594
                            mv_cache[ 0 ][0]= mv_cache[ 1 ][0]= 
3595
                            mv_cache[ 8 ][0]= mv_cache[ 9 ][0]= mx;
3596
                            mv_cache[ 0 ][1]= mv_cache[ 1 ][1]= 
3597
                            mv_cache[ 8 ][1]= mv_cache[ 9 ][1]= my;
3598
                        }else if(IS_SUB_8X4(sub_mb_type)){
3599
                            mv_cache[ 0 ][0]= mv_cache[ 1 ][0]= mx;
3600
                            mv_cache[ 0 ][1]= mv_cache[ 1 ][1]= my;
3601
                        }else if(IS_SUB_4X8(sub_mb_type)){
3602
                            mv_cache[ 0 ][0]= mv_cache[ 8 ][0]= mx;
3603
                            mv_cache[ 0 ][1]= mv_cache[ 8 ][1]= my;
3604
                        }else{
3605
                            assert(IS_SUB_4X4(sub_mb_type));
3606
                            mv_cache[ 0 ][0]= mx;
3607
                            mv_cache[ 0 ][1]= my;
3608
                        }
3609
                    }
3610
                }else{
3611
                    uint32_t *p= (uint32_t *)&h->mv_cache[list][ scan8[4*i] ][0];
3612
                    p[0] = p[1]=
3613
                    p[8] = p[9]= 0;
3614
                }
3615
            }
3616
        }
3617
    }else if(!IS_DIRECT(mb_type)){
3618
        int list, mx, my, i;
3619
         //FIXME we should set ref_idx_l? to 0 if we use that later ...
3620
        if(IS_16X16(mb_type)){
3621
            for(list=0; list<2; list++){
3622
                if(h->ref_count[0]>0){
3623
                    if(IS_DIR(mb_type, 0, list)){
3624
                        const int val= get_te0_golomb(&s->gb, h->ref_count[list]);
3625
                        fill_rectangle(&h->ref_cache[list][ scan8[0] ], 4, 4, 8, val, 1);
3626
                    }
3627
                }
3628
            }
3629
            for(list=0; list<2; list++){
3630
                if(IS_DIR(mb_type, 0, list)){
3631
                    pred_motion(h, 0, 4, list, h->ref_cache[list][ scan8[0] ], &mx, &my);
3632
                    mx += get_se_golomb(&s->gb);
3633
                    my += get_se_golomb(&s->gb);
3634
                    tprintf("final mv:%d %d\n", mx, my);
3635

    
3636
                    fill_rectangle(h->mv_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx,my), 4);
3637
                }
3638
            }
3639
        }
3640
        else if(IS_16X8(mb_type)){
3641
            for(list=0; list<2; list++){
3642
                if(h->ref_count[list]>0){
3643
                    for(i=0; i<2; i++){
3644
                        if(IS_DIR(mb_type, i, list)){
3645
                            const int val= get_te0_golomb(&s->gb, h->ref_count[list]);
3646
                            fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, val, 1);
3647
                        }
3648
                    }
3649
                }
3650
            }
3651
            for(list=0; list<2; list++){
3652
                for(i=0; i<2; i++){
3653
                    if(IS_DIR(mb_type, i, list)){
3654
                        pred_16x8_motion(h, 8*i, list, h->ref_cache[list][scan8[0] + 16*i], &mx, &my);
3655
                        mx += get_se_golomb(&s->gb);
3656
                        my += get_se_golomb(&s->gb);
3657
                        tprintf("final mv:%d %d\n", mx, my);
3658

    
3659
                        fill_rectangle(h->mv_cache[list][ scan8[0] + 16*i ], 4, 2, 8, pack16to32(mx,my), 4);
3660
                    }
3661
                }
3662
            }
3663
        }else{
3664
            assert(IS_8X16(mb_type));
3665
            for(list=0; list<2; list++){
3666
                if(h->ref_count[list]>0){
3667
                    for(i=0; i<2; i++){
3668
                        if(IS_DIR(mb_type, i, list)){ //FIXME optimize
3669
                            const int val= get_te0_golomb(&s->gb, h->ref_count[list]);
3670
                            fill_rectangle(&h->ref_cache[list][ scan8[0] + 2*i ], 2, 4, 8, val, 1);
3671
                        }
3672
                    }
3673
                }
3674
            }
3675
            for(list=0; list<2; list++){
3676
                for(i=0; i<2; i++){
3677
                    if(IS_DIR(mb_type, i, list)){
3678
                        pred_8x16_motion(h, i*4, list, h->ref_cache[list][ scan8[0] + 2*i ], &mx, &my);
3679
                        mx += get_se_golomb(&s->gb);
3680
                        my += get_se_golomb(&s->gb);
3681
                        tprintf("final mv:%d %d\n", mx, my);
3682

    
3683
                        fill_rectangle(h->mv_cache[list][ scan8[0] + 2*i ], 2, 4, 8, pack16to32(mx,my), 4);
3684
                    }
3685
                }
3686
            }
3687
        }
3688
    }
3689
    
3690
    if(IS_INTER(mb_type))
3691
        write_back_motion(h, mb_type);
3692
    
3693
    if(!IS_INTRA16x16(mb_type)){
3694
        cbp= get_ue_golomb(&s->gb);
3695
        if(cbp > 47){
3696
            av_log(h->s.avctx, AV_LOG_ERROR, "cbp too large (%d) at %d %d\n", cbp, s->mb_x, s->mb_y);
3697
            return -1;
3698
        }
3699
        
3700
        if(IS_INTRA4x4(mb_type))
3701
            cbp= golomb_to_intra4x4_cbp[cbp];
3702
        else
3703
            cbp= golomb_to_inter_cbp[cbp];
3704
    }
3705

    
3706
    if(cbp || IS_INTRA16x16(mb_type)){
3707
        int i8x8, i4x4, chroma_idx;
3708
        int chroma_qp, dquant;
3709
        GetBitContext *gb= IS_INTRA(mb_type) ? h->intra_gb_ptr : h->inter_gb_ptr;
3710
        const uint8_t *scan, *dc_scan;
3711
        
3712
//        fill_non_zero_count_cache(h);
3713

    
3714
        if(IS_INTERLACED(mb_type)){
3715
            scan= field_scan;
3716
            dc_scan= luma_dc_field_scan;
3717
        }else{
3718
            scan= zigzag_scan;
3719
            dc_scan= luma_dc_zigzag_scan;
3720
        }
3721

    
3722
        dquant= get_se_golomb(&s->gb);
3723

    
3724
        if( dquant > 25 || dquant < -26 ){
3725
            av_log(h->s.avctx, AV_LOG_ERROR, "dquant out of range (%d) at %d %d\n", dquant, s->mb_x, s->mb_y);
3726
            return -1;
3727
        }
3728
        
3729
        s->qscale += dquant;
3730
        if(((unsigned)s->qscale) > 51){
3731
            if(s->qscale<0) s->qscale+= 52;
3732
            else            s->qscale-= 52;
3733
        }
3734
        
3735
        h->chroma_qp= chroma_qp= get_chroma_qp(h, s->qscale);
3736
        if(IS_INTRA16x16(mb_type)){
3737
            if( decode_residual(h, h->intra_gb_ptr, h->mb, LUMA_DC_BLOCK_INDEX, dc_scan, s->qscale, 16) < 0){
3738
                return -1; //FIXME continue if partotioned and other retirn -1 too
3739
            }
3740

    
3741
            assert((cbp&15) == 0 || (cbp&15) == 15);
3742

    
3743
            if(cbp&15){
3744
                for(i8x8=0; i8x8<4; i8x8++){
3745
                    for(i4x4=0; i4x4<4; i4x4++){
3746
                        const int index= i4x4 + 4*i8x8;
3747
                        if( decode_residual(h, h->intra_gb_ptr, h->mb + 16*index, index, scan + 1, s->qscale, 15) < 0 ){
3748
                            return -1;
3749
                        }
3750
                    }
3751
                }
3752
            }else{
3753
                fill_rectangle(&h->non_zero_count_cache[scan8[0]], 4, 4, 8, 0, 1);
3754
            }
3755
        }else{
3756
            for(i8x8=0; i8x8<4; i8x8++){
3757
                if(cbp & (1<<i8x8)){
3758
                    for(i4x4=0; i4x4<4; i4x4++){
3759
                        const int index= i4x4 + 4*i8x8;
3760
                        
3761
                        if( decode_residual(h, gb, h->mb + 16*index, index, scan, s->qscale, 16) <0 ){
3762
                            return -1;
3763
                        }
3764
                    }
3765
                }else{
3766
                    uint8_t * const nnz= &h->non_zero_count_cache[ scan8[4*i8x8] ];
3767
                    nnz[0] = nnz[1] = nnz[8] = nnz[9] = 0;
3768
                }
3769
            }
3770
        }
3771
        
3772
        if(cbp&0x30){
3773
            for(chroma_idx=0; chroma_idx<2; chroma_idx++)
3774
                if( decode_residual(h, gb, h->mb + 256 + 16*4*chroma_idx, CHROMA_DC_BLOCK_INDEX, chroma_dc_scan, chroma_qp, 4) < 0){
3775
                    return -1;
3776
                }
3777
        }
3778

    
3779
        if(cbp&0x20){
3780
            for(chroma_idx=0; chroma_idx<2; chroma_idx++){
3781
                for(i4x4=0; i4x4<4; i4x4++){
3782
                    const int index= 16 + 4*chroma_idx + i4x4;
3783
                    if( decode_residual(h, gb, h->mb + 16*index, index, scan + 1, chroma_qp, 15) < 0){
3784
                        return -1;
3785
                    }
3786
                }
3787
            }
3788
        }else{
3789
            uint8_t * const nnz= &h->non_zero_count_cache[0];
3790
            nnz[ scan8[16]+0 ] = nnz[ scan8[16]+1 ] =nnz[ scan8[16]+8 ] =nnz[ scan8[16]+9 ] =
3791
            nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0;
3792
        }
3793
    }else{
3794
        uint8_t * const nnz= &h->non_zero_count_cache[0];
3795
        fill_rectangle(&nnz[scan8[0]], 4, 4, 8, 0, 1);
3796
        nnz[ scan8[16]+0 ] = nnz[ scan8[16]+1 ] =nnz[ scan8[16]+8 ] =nnz[ scan8[16]+9 ] =
3797
        nnz[ scan8[20]+0 ] = nnz[ scan8[20]+1 ] =nnz[ scan8[20]+8 ] =nnz[ scan8[20]+9 ] = 0;
3798
    }
3799
    s->current_picture.qscale_table[mb_xy]= s->qscale;
3800
    write_back_non_zero_count(h);
3801

    
3802
    return 0;
3803
}
3804

    
3805
static int decode_cabac_intra_mb_type(H264Context *h, int ctx_base, int intra_slice) {
3806
    uint8_t *state= &h->cabac_state[ctx_base];
3807
    int mb_type;
3808
    
3809
    if(intra_slice){
3810
        MpegEncContext * const s = &h->s;
3811
        const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
3812
        int ctx=0;
3813
        if( s->mb_x > 0 && !IS_INTRA4x4( s->current_picture.mb_type[mb_xy-1] ) )
3814
            ctx++;
3815
        if( s->mb_y > 0 && !IS_INTRA4x4( s->current_picture.mb_type[mb_xy-s->mb_stride] ) )
3816
            ctx++;
3817
        if( get_cabac( &h->cabac, &state[ctx] ) == 0 )
3818
            return 0;   /* I4x4 */
3819
        state += 2;
3820
    }else{
3821
        if( get_cabac( &h->cabac, &state[0] ) == 0 )
3822
            return 0;   /* I4x4 */
3823
    }
3824

    
3825
    if( get_cabac_terminate( &h->cabac ) )
3826
        return 25;  /* PCM */
3827

    
3828
    mb_type = 1; /* I16x16 */
3829
    if( get_cabac( &h->cabac, &state[1] ) )
3830
        mb_type += 12;  /* cbp_luma != 0 */
3831

    
3832
    if( get_cabac( &h->cabac, &state[2] ) ) {
3833
        if( get_cabac( &h->cabac, &state[2+intra_slice] ) )
3834
            mb_type += 4 * 2;   /* cbp_chroma == 2 */
3835
        else
3836
            mb_type += 4 * 1;   /* cbp_chroma == 1 */
3837
    }
3838
    if( get_cabac( &h->cabac, &state[3+intra_slice] ) )
3839
        mb_type += 2;
3840
    if( get_cabac( &h->cabac, &state[3+2*intra_slice] ) )
3841
        mb_type += 1;
3842
    return mb_type;
3843
}
3844

    
3845
static int decode_cabac_mb_type( H264Context *h ) {
3846
    MpegEncContext * const s = &h->s;
3847

    
3848
    if( h->slice_type == I_TYPE ) {
3849
        return decode_cabac_intra_mb_type(h, 3, 1);
3850
    } else if( h->slice_type == P_TYPE ) {
3851
        if( get_cabac( &h->cabac, &h->cabac_state[14] ) == 0 ) {
3852
            /* P-type */
3853
            if( get_cabac( &h->cabac, &h->cabac_state[15] ) == 0 ) {
3854
                if( get_cabac( &h->cabac, &h->cabac_state[16] ) == 0 )
3855
                    return 0; /* P_L0_D16x16; */
3856
                else
3857
                    return 3; /* P_8x8; */
3858
            } else {
3859
                if( get_cabac( &h->cabac, &h->cabac_state[17] ) == 0 )
3860
                    return 2; /* P_L0_D8x16; */
3861
                else
3862
                    return 1; /* P_L0_D16x8; */
3863
            }
3864
        } else {
3865
            return decode_cabac_intra_mb_type(h, 17, 0) + 5;
3866
        }
3867
    } else if( h->slice_type == B_TYPE ) {
3868
        const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
3869
        int ctx = 0;
3870
        int bits;
3871

    
3872
        if( s->mb_x > 0 && !IS_SKIP( s->current_picture.mb_type[mb_xy-1] )
3873
                      && !IS_DIRECT( s->current_picture.mb_type[mb_xy-1] ) )
3874
            ctx++;
3875
        if( s->mb_y > 0 && !IS_SKIP( s->current_picture.mb_type[mb_xy-s->mb_stride] )
3876
                      && !IS_DIRECT( s->current_picture.mb_type[mb_xy-s->mb_stride] ) )
3877
            ctx++;
3878

    
3879
        if( !get_cabac( &h->cabac, &h->cabac_state[27+ctx] ) )
3880
            return 0; /* B_Direct_16x16 */
3881

    
3882
        if( !get_cabac( &h->cabac, &h->cabac_state[27+3] ) ) {
3883
            return 1 + get_cabac( &h->cabac, &h->cabac_state[27+5] ); /* B_L[01]_16x16 */
3884
        }
3885

    
3886
        bits = get_cabac( &h->cabac, &h->cabac_state[27+4] ) << 3;
3887
        bits|= get_cabac( &h->cabac, &h->cabac_state[27+5] ) << 2;
3888
        bits|= get_cabac( &h->cabac, &h->cabac_state[27+5] ) << 1;
3889
        bits|= get_cabac( &h->cabac, &h->cabac_state[27+5] );
3890
        if( bits < 8 )
3891
            return bits + 3; /* B_Bi_16x16 through B_L1_L0_16x8 */
3892
        else if( bits == 13 ) {
3893
            return decode_cabac_intra_mb_type(h, 32, 0) + 23;
3894
        } else if( bits == 14 )
3895
            return 11; /* B_L1_L0_8x16 */
3896
        else if( bits == 15 )
3897
            return 22; /* B_8x8 */
3898

    
3899
        bits= ( bits<<1 ) | get_cabac( &h->cabac, &h->cabac_state[27+5] );
3900
        return bits - 4; /* B_L0_Bi_* through B_Bi_Bi_* */
3901
    } else {
3902
        /* TODO SI/SP frames? */
3903
        return -1;
3904
    }
3905
}
3906

    
3907
static int decode_cabac_mb_skip( H264Context *h) {
3908
    MpegEncContext * const s = &h->s;
3909
    const int mb_xy = s->mb_x + s->mb_y*s->mb_stride;
3910
    const int mba_xy = mb_xy - 1;
3911
    const int mbb_xy = mb_xy - s->mb_stride;
3912
    int ctx = 0;
3913

    
3914
    if( s->mb_x > 0 && !IS_SKIP( s->current_picture.mb_type[mba_xy] ) )
3915
        ctx++;
3916
    if( s->mb_y > 0 && !IS_SKIP( s->current_picture.mb_type[mbb_xy] ) )
3917
        ctx++;
3918

    
3919
    if( h->slice_type == P_TYPE || h->slice_type == SP_TYPE)
3920
        return get_cabac( &h->cabac, &h->cabac_state[11+ctx] );
3921
    else /* B-frame */
3922
        return get_cabac( &h->cabac, &h->cabac_state[24+ctx] );
3923
}
3924

    
3925
static int decode_cabac_mb_intra4x4_pred_mode( H264Context *h, int pred_mode ) {
3926
    int mode = 0;
3927

    
3928
    if( get_cabac( &h->cabac, &h->cabac_state[68] ) )
3929
        return pred_mode;
3930

    
3931
    if( get_cabac( &h->cabac, &h->cabac_state[69] ) )
3932
        mode += 1;
3933
    if( get_cabac( &h->cabac, &h->cabac_state[69] ) )
3934
        mode += 2;
3935
    if( get_cabac( &h->cabac, &h->cabac_state[69] ) )
3936
        mode += 4;
3937
    if( mode >= pred_mode )
3938
        return mode + 1;
3939
    else
3940
        return mode;
3941
}
3942

    
3943
static int decode_cabac_mb_chroma_pre_mode( H264Context *h) {
3944
    MpegEncContext * const s = &h->s;
3945
    const int mb_xy = s->mb_x + s->mb_y*s->mb_stride;
3946
    const int mba_xy = mb_xy - 1;
3947
    const int mbb_xy = mb_xy - s->mb_stride;
3948

    
3949
    int ctx = 0;
3950

    
3951
    /* No need to test for IS_INTRA4x4 and IS_INTRA16x16, as we set chroma_pred_mode_table to 0 */
3952
    if( s->mb_x > 0 && h->chroma_pred_mode_table[mba_xy] != 0 )
3953
        ctx++;
3954

    
3955
    if( s->mb_y > 0 && h->chroma_pred_mode_table[mbb_xy] != 0 )
3956
        ctx++;
3957

    
3958
    if( get_cabac( &h->cabac, &h->cabac_state[64+ctx] ) == 0 )
3959
        return 0;
3960

    
3961
    if( get_cabac( &h->cabac, &h->cabac_state[64+3] ) == 0 )
3962
        return 1;
3963
    if( get_cabac( &h->cabac, &h->cabac_state[64+3] ) == 0 )
3964
        return 2;
3965
    else
3966
        return 3;
3967
}
3968

    
3969
static const uint8_t block_idx_x[16] = {
3970
    0, 1, 0, 1, 2, 3, 2, 3, 0, 1, 0, 1, 2, 3, 2, 3
3971
};
3972
static const uint8_t block_idx_y[16] = {
3973
    0, 0, 1, 1, 0, 0, 1, 1, 2, 2, 3, 3, 2, 2, 3, 3
3974
};
3975
static const uint8_t block_idx_xy[4][4] = {
3976
    { 0, 2, 8,  10},
3977
    { 1, 3, 9,  11},
3978
    { 4, 6, 12, 14},
3979
    { 5, 7, 13, 15}
3980
};
3981

    
3982
static int decode_cabac_mb_cbp_luma( H264Context *h) {
3983
    MpegEncContext * const s = &h->s;
3984
    const int mb_xy = s->mb_x + s->mb_y*s->mb_stride;
3985

    
3986
    int cbp = 0;
3987
    int i8x8;
3988

    
3989
    h->cbp_table[mb_xy] = 0;  /* FIXME aaahahahah beurk */
3990

    
3991
    for( i8x8 = 0; i8x8 < 4; i8x8++ ) {
3992
        int mba_xy = -1;
3993
        int mbb_xy = -1;
3994
        int x, y;
3995
        int ctx = 0;
3996

    
3997
        x = block_idx_x[4*i8x8];
3998
        y = block_idx_y[4*i8x8];
3999

    
4000
        if( x > 0 )
4001
            mba_xy = mb_xy;
4002
        else if( s->mb_x > 0 )
4003
            mba_xy = mb_xy - 1;
4004

    
4005
        if( y > 0 )
4006
            mbb_xy = mb_xy;
4007
        else if( s->mb_y > 0 )
4008
            mbb_xy = mb_xy - s->mb_stride;
4009

    
4010
        /* No need to test for skip as we put 0 for skip block */
4011
        if( mba_xy >= 0 ) {
4012
            int i8x8a = block_idx_xy[(x-1)&0x03][y]/4;
4013
            if( ((h->cbp_table[mba_xy] >> i8x8a)&0x01) == 0 )
4014
                ctx++;
4015
        }
4016

    
4017
        if( mbb_xy >= 0 ) {
4018
            int i8x8b = block_idx_xy[x][(y-1)&0x03]/4;
4019
            if( ((h->cbp_table[mbb_xy] >> i8x8b)&0x01) == 0 )
4020
                ctx += 2;
4021
        }
4022

    
4023
        if( get_cabac( &h->cabac, &h->cabac_state[73 + ctx] ) ) {
4024
            cbp |= 1 << i8x8;
4025
            h->cbp_table[mb_xy] = cbp;  /* FIXME aaahahahah beurk */
4026
        }
4027
    }
4028
    return cbp;
4029
}
4030
static int decode_cabac_mb_cbp_chroma( H264Context *h) {
4031
    int ctx;
4032
    int cbp_a, cbp_b;
4033

    
4034
    cbp_a = (h->left_cbp>>4)&0x03;
4035
    cbp_b = (h-> top_cbp>>4)&0x03;
4036

    
4037
    ctx = 0;
4038
    if( cbp_a > 0 ) ctx++;
4039
    if( cbp_b > 0 ) ctx += 2;
4040
    if( get_cabac( &h->cabac, &h->cabac_state[77 + ctx] ) == 0 )
4041
        return 0;
4042

    
4043
    ctx = 4;
4044
    if( cbp_a == 2 ) ctx++;
4045
    if( cbp_b == 2 ) ctx += 2;
4046
    return 1 + get_cabac( &h->cabac, &h->cabac_state[77 + ctx] );
4047
}
4048
static int decode_cabac_mb_dqp( H264Context *h) {
4049
    MpegEncContext * const s = &h->s;
4050
    int mbn_xy;
4051
    int   ctx = 0;
4052
    int   val = 0;
4053

    
4054
    if( s->mb_x > 0 )
4055
        mbn_xy = s->mb_x + s->mb_y*s->mb_stride - 1;
4056
    else
4057
        mbn_xy = s->mb_width - 1 + (s->mb_y-1)*s->mb_stride;
4058

    
4059
    if( mbn_xy >= 0 && h->last_qscale_diff != 0 && ( IS_INTRA16x16(s->current_picture.mb_type[mbn_xy] ) || (h->cbp_table[mbn_xy]&0x3f) ) )
4060
        ctx++;
4061

    
4062
    while( get_cabac( &h->cabac, &h->cabac_state[60 + ctx] ) ) {
4063
        if( ctx < 2 )
4064
            ctx = 2;
4065
        else
4066
            ctx = 3;
4067
        val++;
4068
    }
4069

    
4070
    if( val&0x01 )
4071
        return (val + 1)/2;
4072
    else
4073
        return -(val + 1)/2;
4074
}
4075
static int decode_cabac_p_mb_sub_type( H264Context *h ) {
4076
    if( get_cabac( &h->cabac, &h->cabac_state[21] ) )
4077
        return 0;   /* 8x8 */
4078
    if( !get_cabac( &h->cabac, &h->cabac_state[22] ) )
4079
        return 1;   /* 8x4 */
4080
    if( get_cabac( &h->cabac, &h->cabac_state[23] ) )
4081
        return 2;   /* 4x8 */
4082
    return 3;       /* 4x4 */
4083
}
4084
static int decode_cabac_b_mb_sub_type( H264Context *h ) {
4085
    int type;
4086
    if( !get_cabac( &h->cabac, &h->cabac_state[36] ) )
4087
        return 0;   /* B_Direct_8x8 */
4088
    if( !get_cabac( &h->cabac, &h->cabac_state[37] ) )
4089
        return 1 + get_cabac( &h->cabac, &h->cabac_state[39] ); /* B_L0_8x8, B_L1_8x8 */
4090
    type = 3;
4091
    if( get_cabac( &h->cabac, &h->cabac_state[38] ) ) {
4092
        if( get_cabac( &h->cabac, &h->cabac_state[39] ) )
4093
            return 11 + get_cabac( &h->cabac, &h->cabac_state[39] ); /* B_L1_4x4, B_Bi_4x4 */
4094
        type += 4;
4095
    }
4096
    type += 2*get_cabac( &h->cabac, &h->cabac_state[39] );
4097
    type +=   get_cabac( &h->cabac, &h->cabac_state[39] );
4098
    return type;
4099
}
4100

    
4101
static int decode_cabac_mb_ref( H264Context *h, int list, int n ) {
4102
    int refa = h->ref_cache[list][scan8[n] - 1];
4103
    int refb = h->ref_cache[list][scan8[n] - 8];
4104
    int ref  = 0;
4105
    int ctx  = 0;
4106

    
4107
    if( refa > 0 )
4108
        ctx++;
4109
    if( refb > 0 )
4110
        ctx += 2;
4111

    
4112
    while( get_cabac( &h->cabac, &h->cabac_state[54+ctx] ) ) {
4113
        ref++;
4114
        if( ctx < 4 )
4115
            ctx = 4;
4116
        else
4117
            ctx = 5;
4118
    }
4119
    return ref;
4120
}
4121

    
4122
static int decode_cabac_mb_mvd( H264Context *h, int list, int n, int l ) {
4123
    int amvd = abs( h->mvd_cache[list][scan8[n] - 1][l] ) +
4124
               abs( h->mvd_cache[list][scan8[n] - 8][l] );
4125
    int ctxbase = (l == 0) ? 40 : 47;
4126
    int ctx, mvd;
4127

    
4128
    if( amvd < 3 )
4129
        ctx = 0;
4130
    else if( amvd > 32 )
4131
        ctx = 2;
4132
    else
4133
        ctx = 1;
4134

    
4135
    if(!get_cabac(&h->cabac, &h->cabac_state[ctxbase+ctx]))
4136
        return 0;
4137

    
4138
    mvd= 1;
4139
    ctx= 3;
4140
    while( mvd < 9 && get_cabac( &h->cabac, &h->cabac_state[ctxbase+ctx] ) ) {
4141
        mvd++;
4142
        if( ctx < 6 )
4143
            ctx++;
4144
    }
4145

    
4146
    if( mvd >= 9 ) {
4147
        int k = 3;
4148
        while( get_cabac_bypass( &h->cabac ) ) {
4149
            mvd += 1 << k;
4150
            k++;
4151
        }
4152
        while( k-- ) {
4153
            if( get_cabac_bypass( &h->cabac ) )
4154
                mvd += 1 << k;
4155
        }
4156
    }
4157
    if( get_cabac_bypass( &h->cabac ) )  return -mvd;
4158
    else                                 return  mvd;
4159
}
4160

    
4161
static int inline get_cabac_cbf_ctx( H264Context *h, int cat, int idx ) {
4162
    int nza, nzb;
4163
    int ctx = 0;
4164

    
4165
    if( cat == 0 ) {
4166
        nza = h->left_cbp&0x100;
4167
        nzb = h-> top_cbp&0x100;
4168
    } else if( cat == 1 || cat == 2 ) {
4169
        nza = h->non_zero_count_cache[scan8[idx] - 1];
4170
        nzb = h->non_zero_count_cache[scan8[idx] - 8];
4171
    } else if( cat == 3 ) {
4172
        nza = (h->left_cbp>>(6+idx))&0x01;
4173
        nzb = (h-> top_cbp>>(6+idx))&0x01;
4174
    } else {
4175
        assert(cat == 4);
4176
        nza = h->non_zero_count_cache[scan8[16+idx] - 1];
4177
        nzb = h->non_zero_count_cache[scan8[16+idx] - 8];
4178
    }
4179

    
4180
    if( nza > 0 )
4181
        ctx++;
4182

    
4183
    if( nzb > 0 )
4184
        ctx += 2;
4185

    
4186
    return ctx + 4 * cat;
4187
}
4188

    
4189
static int inline decode_cabac_residual( H264Context *h, DCTELEM *block, int cat, int n, const uint8_t *scantable, int qp, int max_coeff) {
4190
    const int mb_xy  = h->s.mb_x + h->s.mb_y*h->s.mb_stride;
4191
    const uint16_t *qmul= dequant_coeff[qp];
4192
    static const int significant_coeff_flag_offset[5] = { 0, 15, 29, 44, 47 };
4193
    static const int coeff_abs_level_m1_offset[5] = {227+ 0, 227+10, 227+20, 227+30, 227+39 };
4194

    
4195
    int index[16];
4196

    
4197
    int i, last;
4198
    int coeff_count = 0;
4199

    
4200
    int abslevel1 = 1;
4201
    int abslevelgt1 = 0;
4202

    
4203
    /* cat: 0-> DC 16x16  n = 0
4204
     *      1-> AC 16x16  n = luma4x4idx
4205
     *      2-> Luma4x4   n = luma4x4idx
4206
     *      3-> DC Chroma n = iCbCr
4207
     *      4-> AC Chroma n = 4 * iCbCr + chroma4x4idx
4208
     */
4209

    
4210
    /* read coded block flag */
4211
    if( get_cabac( &h->cabac, &h->cabac_state[85 + get_cabac_cbf_ctx( h, cat, n ) ] ) == 0 ) {
4212
        if( cat == 1 || cat == 2 )
4213
            h->non_zero_count_cache[scan8[n]] = 0;
4214
        else if( cat == 4 )
4215
            h->non_zero_count_cache[scan8[16+n]] = 0;
4216

    
4217
        return 0;
4218
    }
4219

    
4220
    for(last= 0; last < max_coeff - 1; last++) {
4221
        if( get_cabac( &h->cabac, &h->cabac_state[105+significant_coeff_flag_offset[cat]+last] )) {
4222
            index[coeff_count++] = last;
4223
            if( get_cabac( &h->cabac, &h->cabac_state[166+significant_coeff_flag_offset[cat]+last] ) ) {
4224
                last= max_coeff;
4225
                break;
4226
            }
4227
        }
4228
    }
4229
    if( last == max_coeff -1 ) {
4230
        index[coeff_count++] = last;
4231
    }
4232
    assert(coeff_count > 0);
4233

    
4234
    if( cat == 0 )
4235
        h->cbp_table[mb_xy] |= 0x100;
4236
    else if( cat == 1 || cat == 2 )
4237
        h->non_zero_count_cache[scan8[n]] = coeff_count;
4238
    else if( cat == 3 )
4239
        h->cbp_table[mb_xy] |= 0x40 << n;
4240
    else {
4241
        assert( cat == 4 );
4242
        h->non_zero_count_cache[scan8[16+n]] = coeff_count;
4243
    }
4244

    
4245
    for( i = coeff_count - 1; i >= 0; i-- ) {
4246
        int ctx = (abslevelgt1 != 0 ? 0 : FFMIN( 4, abslevel1 )) + coeff_abs_level_m1_offset[cat];
4247
        int j= scantable[index[i]];
4248

    
4249
        if( get_cabac( &h->cabac, &h->cabac_state[ctx] ) == 0 ) {
4250
            if( cat == 0 || cat == 3 ) {
4251
                if( get_cabac_bypass( &h->cabac ) ) block[j] = -1;
4252
                else                                block[j] =  1;
4253
            }else{
4254
                if( get_cabac_bypass( &h->cabac ) ) block[j] = -qmul[j];
4255
                else                                block[j] =  qmul[j];
4256
            }
4257
    
4258
            abslevel1++;
4259
        } else {
4260
            int coeff_abs = 2;
4261
            ctx = 5 + FFMIN( 4, abslevelgt1 ) + coeff_abs_level_m1_offset[cat];
4262
            while( coeff_abs < 15 && get_cabac( &h->cabac, &h->cabac_state[ctx] ) ) {
4263
                coeff_abs++;
4264
            }
4265

    
4266
            if( coeff_abs >= 15 ) {
4267
                int j = 0;
4268
                while( get_cabac_bypass( &h->cabac ) ) {
4269
                    coeff_abs += 1 << j;
4270
                    j++;
4271
                }
4272
    
4273
                while( j-- ) {
4274
                    if( get_cabac_bypass( &h->cabac ) )
4275
                        coeff_abs += 1 << j ;
4276
                }
4277
            }
4278

    
4279
            if( cat == 0 || cat == 3 ) {
4280
                if( get_cabac_bypass( &h->cabac ) ) block[j] = -coeff_abs;
4281
                else                                block[j] =  coeff_abs;
4282
            }else{
4283
                if( get_cabac_bypass( &h->cabac ) ) block[j] = -coeff_abs * qmul[j];
4284
                else                                block[j] =  coeff_abs * qmul[j];
4285
            }
4286
    
4287
            abslevelgt1++;
4288
        }
4289
    }
4290
    return 0;
4291
}
4292

    
4293
/**
4294
 * decodes a macroblock
4295
 * @returns 0 if ok, AC_ERROR / DC_ERROR / MV_ERROR if an error is noticed
4296
 */
4297
static int decode_mb_cabac(H264Context *h) {
4298
    MpegEncContext * const s = &h->s;
4299
    const int mb_xy= s->mb_x + s->mb_y*s->mb_stride;
4300
    int mb_type, partition_count, cbp = 0;
4301

    
4302
    s->dsp.clear_blocks(h->mb); //FIXME avoid if allready clear (move after skip handlong?)
4303

    
4304
    if( h->sps.mb_aff ) {
4305
        av_log( h->s.avctx, AV_LOG_ERROR, "Fields not supported with CABAC\n" );
4306
        return -1;
4307
    }
4308

    
4309
    if( h->slice_type != I_TYPE && h->slice_type != SI_TYPE ) {
4310
        /* read skip flags */
4311
        if( decode_cabac_mb_skip( h ) ) {
4312
            int mx, my;
4313

    
4314
//FIXME b frame
4315
            /* skip mb */
4316
            mb_type= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P1L0|MB_TYPE_SKIP;
4317

    
4318
            memset(h->non_zero_count[mb_xy], 0, 16);
4319
            memset(h->non_zero_count_cache + 8, 0, 8*5); //FIXME ugly, remove pfui
4320
#if 0
4321
            if(h->sps.mb_aff && s->mb_skip_run==0 && (s->mb_y&1)==0){
4322
                h->mb_field_decoding_flag= get_bits1(&s->gb);
4323
            }
4324
            if(h->mb_field_decoding_flag)
4325
                mb_type|= MB_TYPE_INTERLACED;
4326
#endif
4327

    
4328
            fill_caches(h, mb_type); //FIXME check what is needed and what not ...
4329
            pred_pskip_motion(h, &mx, &my);
4330
            fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, 0, 1);
4331
            fill_rectangle(  h->mvd_cache[0][scan8[0]], 4, 4, 8, pack16to32(0,0), 4);
4332
            fill_rectangle(  h->mv_cache[0][scan8[0]], 4, 4, 8, pack16to32(mx,my), 4);
4333
            write_back_motion(h, mb_type);
4334

    
4335
            s->current_picture.mb_type[mb_xy]= mb_type; //FIXME SKIP type
4336
            s->current_picture.qscale_table[mb_xy]= s->qscale;
4337
            h->slice_table[ mb_xy ]= h->slice_num;
4338
            h->cbp_table[mb_xy] = 0;
4339
            h->chroma_pred_mode_table[mb_xy] = 0;
4340
            h->last_qscale_diff = 0;
4341

    
4342
            h->prev_mb_skiped= 1;
4343

    
4344
            return 0;
4345

    
4346
        }
4347
    }
4348
    h->prev_mb_skiped = 0;
4349

    
4350
    if( ( mb_type = decode_cabac_mb_type( h ) ) < 0 ) {
4351
        av_log( h->s.avctx, AV_LOG_ERROR, "decode_cabac_mb_type failed\n" );
4352
        return -1;
4353
    }
4354

    
4355
    if( h->slice_type == B_TYPE ) {
4356
        if( mb_type < 23 ){
4357
            partition_count= b_mb_type_info[mb_type].partition_count;
4358
            mb_type=         b_mb_type_info[mb_type].type;
4359
        }else{
4360
            mb_type -= 23;
4361
            goto decode_intra_mb;
4362
        }
4363
    } else if( h->slice_type == P_TYPE ) {
4364
        if( mb_type < 5) {
4365
            partition_count= p_mb_type_info[mb_type].partition_count;
4366
            mb_type=         p_mb_type_info[mb_type].type;
4367
        } else {
4368
            mb_type -= 5;
4369
            goto decode_intra_mb;
4370
        }
4371
    } else {
4372
       assert(h->slice_type == I_TYPE);
4373
decode_intra_mb:
4374
        partition_count = 0;
4375
        cbp= i_mb_type_info[mb_type].cbp;
4376
        h->intra16x16_pred_mode= i_mb_type_info[mb_type].pred_mode;
4377
        mb_type= i_mb_type_info[mb_type].type;
4378
    }
4379
#if 0
4380
    if(h->mb_field_decoding_flag)
4381
        mb_type |= MB_TYPE_INTERLACED;
4382
#endif
4383

    
4384
    s->current_picture.mb_type[mb_xy]= mb_type;
4385
    h->slice_table[ mb_xy ]= h->slice_num;
4386

    
4387
    if(IS_INTRA_PCM(mb_type)) {
4388
        /* TODO */
4389
        assert(0);
4390
        h->cbp_table[mb_xy] = 0xf +4*2; //FIXME ?!
4391
        h->cbp_table[mb_xy] |= 0x1C0;
4392
        h->chroma_pred_mode_table[mb_xy] = 0;
4393
        s->current_picture.qscale_table[mb_xy]= s->qscale;
4394
        return -1;
4395
    }
4396

    
4397
    fill_caches(h, mb_type);
4398

    
4399
    if( IS_INTRA( mb_type ) ) {
4400
        if( IS_INTRA4x4( mb_type ) ) {
4401
            int i;
4402
            for( i = 0; i < 16; i++ ) {
4403
                int pred = pred_intra_mode( h, i );
4404
                h->intra4x4_pred_mode_cache[ scan8[i] ] = decode_cabac_mb_intra4x4_pred_mode( h, pred );
4405

    
4406
                //av_log( s->avctx, AV_LOG_ERROR, "i4x4 pred=%d mode=%d\n", pred, h->intra4x4_pred_mode_cache[ scan8[i] ] );
4407
            }
4408
            write_back_intra_pred_mode(h);
4409
            if( check_intra4x4_pred_mode(h) < 0 ) return -1;
4410
        } else {
4411
            h->intra16x16_pred_mode= check_intra_pred_mode( h, h->intra16x16_pred_mode );
4412
            if( h->intra16x16_pred_mode < 0 ) return -1;
4413
        }
4414
        h->chroma_pred_mode_table[mb_xy] =
4415
            h->chroma_pred_mode          = decode_cabac_mb_chroma_pre_mode( h );
4416

    
4417
        h->chroma_pred_mode= check_intra_pred_mode( h, h->chroma_pred_mode );
4418
        if( h->chroma_pred_mode < 0 ) return -1;
4419
    } else if( partition_count == 4 ) {
4420
        int i, j, sub_partition_count[4], list, ref[2][4];
4421

    
4422
        if( h->slice_type == B_TYPE ) {
4423
            for( i = 0; i < 4; i++ ) {
4424
                h->sub_mb_type[i] = decode_cabac_b_mb_sub_type( h );
4425
                sub_partition_count[i]= b_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
4426
                h->sub_mb_type[i]=      b_sub_mb_type_info[ h->sub_mb_type[i] ].type;
4427
            }
4428
        } else {
4429
            for( i = 0; i < 4; i++ ) {
4430
                h->sub_mb_type[i] = decode_cabac_p_mb_sub_type( h );
4431
                sub_partition_count[i]= p_sub_mb_type_info[ h->sub_mb_type[i] ].partition_count;
4432
                h->sub_mb_type[i]=      p_sub_mb_type_info[ h->sub_mb_type[i] ].type;
4433
            }
4434
        }
4435

    
4436
        for( list = 0; list < 2; list++ ) {
4437
            if( h->ref_count[list] > 0 ) {
4438
                for( i = 0; i < 4; i++ ) {
4439
                    if(IS_DIR(h->sub_mb_type[i], 0, list) && !IS_DIRECT(h->sub_mb_type[i])){
4440
                        if( h->ref_count[list] > 1 )
4441
                            ref[list][i] = decode_cabac_mb_ref( h, list, 4*i );
4442
                        else
4443
                            ref[list][i] = 0;
4444
                    } else {
4445
                        ref[list][i] = -1;
4446
                    }
4447
                                                       h->ref_cache[list][ scan8[4*i]+1 ]=
4448
                    h->ref_cache[list][ scan8[4*i]+8 ]=h->ref_cache[list][ scan8[4*i]+9 ]= ref[list][i];
4449
                }
4450
            }
4451
        }
4452

    
4453
        for(list=0; list<2; list++){
4454
            for(i=0; i<4; i++){
4455
                h->ref_cache[list][ scan8[4*i]   ]=h->ref_cache[list][ scan8[4*i]+1 ];
4456

    
4457
                if(IS_DIR(h->sub_mb_type[i], 0, list) && !IS_DIRECT(h->sub_mb_type[i])){
4458
                    const int sub_mb_type= h->sub_mb_type[i];
4459
                    const int block_width= (sub_mb_type & (MB_TYPE_16x16|MB_TYPE_16x8)) ? 2 : 1;
4460
                    for(j=0; j<sub_partition_count[i]; j++){
4461
                        int mpx, mpy;
4462
                        int mx, my;
4463
                        const int index= 4*i + block_width*j;
4464
                        int16_t (* mv_cache)[2]= &h->mv_cache[list][ scan8[index] ];
4465
                        int16_t (* mvd_cache)[2]= &h->mvd_cache[list][ scan8[index] ];
4466
                        pred_motion(h, index, block_width, list, h->ref_cache[list][ scan8[index] ], &mpx, &mpy);
4467

    
4468
                        mx = mpx + decode_cabac_mb_mvd( h, list, index, 0 );
4469
                        my = mpy + decode_cabac_mb_mvd( h, list, index, 1 );
4470
                        tprintf("final mv:%d %d\n", mx, my);
4471

    
4472
                        if(IS_SUB_8X8(sub_mb_type)){
4473
                            mv_cache[ 0 ][0]= mv_cache[ 1 ][0]=
4474
                            mv_cache[ 8 ][0]= mv_cache[ 9 ][0]= mx;
4475
                            mv_cache[ 0 ][1]= mv_cache[ 1 ][1]=
4476
                            mv_cache[ 8 ][1]= mv_cache[ 9 ][1]= my;
4477

    
4478
                            mvd_cache[ 0 ][0]= mvd_cache[ 1 ][0]=
4479
                            mvd_cache[ 8 ][0]= mvd_cache[ 9 ][0]= mx - mpx;
4480
                            mvd_cache[ 0 ][1]= mvd_cache[ 1 ][1]=
4481
                            mvd_cache[ 8 ][1]= mvd_cache[ 9 ][1]= my - mpy;
4482
                        }else if(IS_SUB_8X4(sub_mb_type)){
4483
                            mv_cache[ 0 ][0]= mv_cache[ 1 ][0]= mx;
4484
                            mv_cache[ 0 ][1]= mv_cache[ 1 ][1]= my;
4485

    
4486
                            mvd_cache[ 0 ][0]= mvd_cache[ 1 ][0]= mx- mpx;
4487
                            mvd_cache[ 0 ][1]= mvd_cache[ 1 ][1]= my - mpy;
4488
                        }else if(IS_SUB_4X8(sub_mb_type)){
4489
                            mv_cache[ 0 ][0]= mv_cache[ 8 ][0]= mx;
4490
                            mv_cache[ 0 ][1]= mv_cache[ 8 ][1]= my;
4491

    
4492
                            mvd_cache[ 0 ][0]= mvd_cache[ 8 ][0]= mx - mpx;
4493
                            mvd_cache[ 0 ][1]= mvd_cache[ 8 ][1]= my - mpy;
4494
                        }else{
4495
                            assert(IS_SUB_4X4(sub_mb_type));
4496
                            mv_cache[ 0 ][0]= mx;
4497
                            mv_cache[ 0 ][1]= my;
4498

    
4499
                            mvd_cache[ 0 ][0]= mx - mpx;
4500
                            mvd_cache[ 0 ][1]= my - mpy;
4501
                        }
4502
                    }
4503
                }else{
4504
                    uint32_t *p= (uint32_t *)&h->mv_cache[list][ scan8[4*i] ][0];
4505
                    uint32_t *pd= (uint32_t *)&h->mvd_cache[list][ scan8[4*i] ][0];
4506
                    p[0] = p[1] = p[8] = p[9] = 0;
4507
                    pd[0]= pd[1]= pd[8]= pd[9]= 0;
4508
                }
4509
            }
4510
        }
4511
    } else if( !IS_DIRECT(mb_type) ) {
4512
        int list, mx, my, i, mpx, mpy;
4513
        if(IS_16X16(mb_type)){
4514
            for(list=0; list<2; list++){
4515
                if(IS_DIR(mb_type, 0, list)){
4516
                    if(h->ref_count[list] > 0 ){
4517
                        const int ref = h->ref_count[list] > 1 ? decode_cabac_mb_ref( h, list, 0 ) : 0;
4518
                        fill_rectangle(&h->ref_cache[list][ scan8[0] ], 4, 4, 8, ref, 1);
4519
                    }
4520
                }
4521
            }
4522
            for(list=0; list<2; list++){
4523
                if(IS_DIR(mb_type, 0, list)){
4524
                    pred_motion(h, 0, 4, list, h->ref_cache[list][ scan8[0] ], &mpx, &mpy);
4525

    
4526
                    mx = mpx + decode_cabac_mb_mvd( h, list, 0, 0 );
4527
                    my = mpy + decode_cabac_mb_mvd( h, list, 0, 1 );
4528
                    tprintf("final mv:%d %d\n", mx, my);
4529

    
4530
                    fill_rectangle(h->mvd_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx-mpx,my-mpy), 4);
4531
                    fill_rectangle(h->mv_cache[list][ scan8[0] ], 4, 4, 8, pack16to32(mx,my), 4);
4532
                }
4533
            }
4534
        }
4535
        else if(IS_16X8(mb_type)){
4536
            for(list=0; list<2; list++){
4537
                if(h->ref_count[list]>0){
4538
                    for(i=0; i<2; i++){
4539
                        if(IS_DIR(mb_type, i, list)){
4540
                            const int ref= h->ref_count[list] > 1 ? decode_cabac_mb_ref( h, list, 8*i ) : 0;
4541
                            fill_rectangle(&h->ref_cache[list][ scan8[0] + 16*i ], 4, 2, 8, ref, 1);
4542
                        }