Statistics
| Branch: | Revision:

ffmpeg / libavcodec / mpegvideo.c @ 54993774

History | View | Annotate | Download (95.9 KB)

1
/*
2
 * The simplest mpeg encoder (well, it was the simplest!)
3
 * Copyright (c) 2000,2001 Fabrice Bellard.
4
 *
5
 * This library is free software; you can redistribute it and/or
6
 * modify it under the terms of the GNU Lesser General Public
7
 * License as published by the Free Software Foundation; either
8
 * version 2 of the License, or (at your option) any later version.
9
 *
10
 * This library is distributed in the hope that it will be useful,
11
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13
 * Lesser General Public License for more details.
14
 *
15
 * You should have received a copy of the GNU Lesser General Public
16
 * License along with this library; if not, write to the Free Software
17
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
18
 *
19
 * 4MV & hq & b-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
20
 */
21
#include "avcodec.h"
22
#include "dsputil.h"
23
#include "mpegvideo.h"
24

    
25
#ifdef USE_FASTMEMCPY
26
#include "fastmemcpy.h"
27
#endif
28

    
29
static void encode_picture(MpegEncContext *s, int picture_number);
30
static void dct_unquantize_mpeg1_c(MpegEncContext *s, 
31
                                   DCTELEM *block, int n, int qscale);
32
static void dct_unquantize_mpeg2_c(MpegEncContext *s,
33
                                   DCTELEM *block, int n, int qscale);
34
static void dct_unquantize_h263_c(MpegEncContext *s, 
35
                                  DCTELEM *block, int n, int qscale);
36
static void draw_edges_c(UINT8 *buf, int wrap, int width, int height, int w);
37
static int dct_quantize_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
38

    
39
int (*dct_quantize)(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow)= dct_quantize_c;
40
void (*draw_edges)(UINT8 *buf, int wrap, int width, int height, int w)= draw_edges_c;
41
static void emulated_edge_mc(MpegEncContext *s, UINT8 *src, int linesize, int block_w, int block_h, 
42
                                    int src_x, int src_y, int w, int h);
43

    
44
#define EDGE_WIDTH 16
45

    
46
/* enable all paranoid tests for rounding, overflows, etc... */
47
//#define PARANOID
48

    
49
//#define DEBUG
50

    
51

    
52
/* for jpeg fast DCT */
53
#define CONST_BITS 14
54

    
55
static const unsigned short aanscales[64] = {
56
    /* precomputed values scaled up by 14 bits */
57
    16384, 22725, 21407, 19266, 16384, 12873,  8867,  4520,
58
    22725, 31521, 29692, 26722, 22725, 17855, 12299,  6270,
59
    21407, 29692, 27969, 25172, 21407, 16819, 11585,  5906,
60
    19266, 26722, 25172, 22654, 19266, 15137, 10426,  5315,
61
    16384, 22725, 21407, 19266, 16384, 12873,  8867,  4520,
62
    12873, 17855, 16819, 15137, 12873, 10114,  6967,  3552,
63
    8867, 12299, 11585, 10426,  8867,  6967,  4799,  2446,
64
    4520,  6270,  5906,  5315,  4520,  3552,  2446,  1247
65
};
66

    
67
static UINT8 h263_chroma_roundtab[16] = {
68
    0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2,
69
};
70

    
71
static UINT16 default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
72
static UINT8 default_fcode_tab[MAX_MV*2+1];
73

    
74
extern UINT8 zigzag_end[64];
75

    
76
/* default motion estimation */
77
int motion_estimation_method = ME_EPZS;
78

    
79
static void convert_matrix(int (*qmat)[64], uint16_t (*qmat16)[64], uint16_t (*qmat16_bias)[64],
80
                           const UINT16 *quant_matrix, int bias)
81
{
82
    int qscale;
83

    
84
    for(qscale=1; qscale<32; qscale++){
85
        int i;
86
        if (av_fdct == fdct_ifast) {
87
            for(i=0;i<64;i++) {
88
                const int j= block_permute_op(i);
89
                /* 16 <= qscale * quant_matrix[i] <= 7905 */
90
                /* 19952         <= aanscales[i] * qscale * quant_matrix[i]           <= 249205026 */
91
                /* (1<<36)/19952 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
92
                /* 3444240       >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= 275 */
93
                
94
                qmat[qscale][j] = (int)((UINT64_C(1) << (QMAT_SHIFT + 11)) / 
95
                                (aanscales[i] * qscale * quant_matrix[j]));
96
            }
97
        } else {
98
            for(i=0;i<64;i++) {
99
                /* We can safely suppose that 16 <= quant_matrix[i] <= 255
100
                   So 16           <= qscale * quant_matrix[i]             <= 7905
101
                   so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
102
                   so 32768        >= (1<<19) / (qscale * quant_matrix[i]) >= 67
103
                */
104
                qmat  [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
105
                qmat16[qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[block_permute_op(i)]);
106

    
107
                if(qmat16[qscale][i]==0 || qmat16[qscale][i]==128*256) qmat16[qscale][i]=128*256-1;
108

    
109
                qmat16_bias[qscale][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][i]);
110
            }
111
        }
112
    }
113
}
114
// move into common.c perhaps 
115
#define CHECKED_ALLOCZ(p, size)\
116
{\
117
    p= av_mallocz(size);\
118
    if(p==NULL){\
119
        perror("malloc");\
120
        goto fail;\
121
    }\
122
}
123

    
124
/* init common structure for both encoder and decoder */
125
int MPV_common_init(MpegEncContext *s)
126
{
127
    int c_size, i;
128
    UINT8 *pict;
129

    
130
    s->dct_unquantize_h263 = dct_unquantize_h263_c;
131
    s->dct_unquantize_mpeg1 = dct_unquantize_mpeg1_c;
132
    s->dct_unquantize_mpeg2 = dct_unquantize_mpeg2_c;
133
        
134
#ifdef HAVE_MMX
135
    MPV_common_init_mmx(s);
136
#endif
137
#ifdef ARCH_ALPHA
138
    MPV_common_init_axp(s);
139
#endif
140
    //setup default unquantizers (mpeg4 might change it later)
141
    if(s->out_format == FMT_H263)
142
        s->dct_unquantize = s->dct_unquantize_h263;
143
    else
144
        s->dct_unquantize = s->dct_unquantize_mpeg1;
145
    
146
    s->mb_width = (s->width + 15) / 16;
147
    s->mb_height = (s->height + 15) / 16;
148
    s->mb_num = s->mb_width * s->mb_height;
149
    if(!(s->flags&CODEC_FLAG_DR1)){
150
      s->linesize   = s->mb_width * 16 + 2 * EDGE_WIDTH;
151
      s->uvlinesize = s->mb_width * 8  +     EDGE_WIDTH;
152

    
153
      for(i=0;i<3;i++) {
154
        int w, h, shift, pict_start;
155

    
156
        w = s->linesize;
157
        h = s->mb_height * 16 + 2 * EDGE_WIDTH;
158
        shift = (i == 0) ? 0 : 1;
159
        c_size = (s->linesize>>shift) * (h >> shift);
160
        pict_start = (s->linesize>>shift) * (EDGE_WIDTH >> shift) + (EDGE_WIDTH >> shift);
161

    
162
        CHECKED_ALLOCZ(pict, c_size)
163
        s->last_picture_base[i] = pict;
164
        s->last_picture[i] = pict + pict_start;
165
        if(i>0) memset(s->last_picture_base[i], 128, c_size);
166
    
167
        CHECKED_ALLOCZ(pict, c_size)
168
        s->next_picture_base[i] = pict;
169
        s->next_picture[i] = pict + pict_start;
170
        if(i>0) memset(s->next_picture_base[i], 128, c_size);
171
        
172
        if (s->has_b_frames || s->codec_id==CODEC_ID_MPEG4) {
173
        /* Note the MPEG4 stuff is here cuz of buggy encoders which dont set the low_delay flag but 
174
           do low-delay encoding, so we cant allways distinguish b-frame containing streams from low_delay streams */
175
            CHECKED_ALLOCZ(pict, c_size)
176
            s->aux_picture_base[i] = pict;
177
            s->aux_picture[i] = pict + pict_start;
178
            if(i>0) memset(s->aux_picture_base[i], 128, c_size);
179
        }
180
      }
181
      s->ip_buffer_count= 2;
182
    }
183
    
184
    CHECKED_ALLOCZ(s->edge_emu_buffer, (s->width+32)*2*17);
185
    
186
    if (s->encoding) {
187
        int j;
188
        int mv_table_size= (s->mb_width+2)*(s->mb_height+2);
189
        
190
        CHECKED_ALLOCZ(s->mb_var   , s->mb_num * sizeof(INT16))
191
        CHECKED_ALLOCZ(s->mc_mb_var, s->mb_num * sizeof(INT16))
192

    
193
        /* Allocate MV tables */
194
        CHECKED_ALLOCZ(s->p_mv_table            , mv_table_size * 2 * sizeof(INT16))
195
        CHECKED_ALLOCZ(s->b_forw_mv_table       , mv_table_size * 2 * sizeof(INT16))
196
        CHECKED_ALLOCZ(s->b_back_mv_table       , mv_table_size * 2 * sizeof(INT16))
197
        CHECKED_ALLOCZ(s->b_bidir_forw_mv_table , mv_table_size * 2 * sizeof(INT16))
198
        CHECKED_ALLOCZ(s->b_bidir_back_mv_table , mv_table_size * 2 * sizeof(INT16))
199
        CHECKED_ALLOCZ(s->b_direct_forw_mv_table, mv_table_size * 2 * sizeof(INT16))
200
        CHECKED_ALLOCZ(s->b_direct_back_mv_table, mv_table_size * 2 * sizeof(INT16))
201
        CHECKED_ALLOCZ(s->b_direct_mv_table     , mv_table_size * 2 * sizeof(INT16))
202

    
203
        CHECKED_ALLOCZ(s->me_scratchpad,  s->linesize*16*3*sizeof(uint8_t))
204
        
205
        CHECKED_ALLOCZ(s->me_map      , ME_MAP_SIZE*sizeof(uint32_t))
206
        CHECKED_ALLOCZ(s->me_score_map, ME_MAP_SIZE*sizeof(uint16_t))
207

    
208
        if(s->max_b_frames){
209
            for(j=0; j<REORDER_BUFFER_SIZE; j++){
210
                int i;
211
                for(i=0;i<3;i++) {
212
                    int w, h, shift;
213

    
214
                    w = s->linesize;
215
                    h = s->mb_height * 16;
216
                    shift = (i == 0) ? 0 : 1;
217
                    c_size = (w >> shift) * (h >> shift);
218

    
219
                    CHECKED_ALLOCZ(pict, c_size);
220
                    s->picture_buffer[j][i] = pict;
221
                }
222
            }
223
        }
224

    
225
        if(s->codec_id==CODEC_ID_MPEG4){
226
            CHECKED_ALLOCZ(s->tex_pb_buffer, PB_BUFFER_SIZE);
227
            CHECKED_ALLOCZ(   s->pb2_buffer, PB_BUFFER_SIZE);
228
        }
229
    }
230
    
231
    if (s->out_format == FMT_H263 || s->encoding) {
232
        int size;
233
        /* Allocate MB type table */
234
        CHECKED_ALLOCZ(s->mb_type  , s->mb_num * sizeof(UINT8))
235

    
236
        /* MV prediction */
237
        size = (2 * s->mb_width + 2) * (2 * s->mb_height + 2);
238
        CHECKED_ALLOCZ(s->motion_val, size * 2 * sizeof(INT16));
239
    }
240

    
241
    if (s->h263_pred || s->h263_plus) {
242
        int y_size, c_size, i, size;
243
        
244
        /* dc values */
245

    
246
        y_size = (2 * s->mb_width + 2) * (2 * s->mb_height + 2);
247
        c_size = (s->mb_width + 2) * (s->mb_height + 2);
248
        size = y_size + 2 * c_size;
249
        CHECKED_ALLOCZ(s->dc_val[0], size * sizeof(INT16));
250
        s->dc_val[1] = s->dc_val[0] + y_size;
251
        s->dc_val[2] = s->dc_val[1] + c_size;
252
        for(i=0;i<size;i++)
253
            s->dc_val[0][i] = 1024;
254

    
255
        /* ac values */
256
        CHECKED_ALLOCZ(s->ac_val[0], size * sizeof(INT16) * 16);
257
        s->ac_val[1] = s->ac_val[0] + y_size;
258
        s->ac_val[2] = s->ac_val[1] + c_size;
259
        
260
        /* cbp values */
261
        CHECKED_ALLOCZ(s->coded_block, y_size);
262

    
263
        /* which mb is a intra block */
264
        CHECKED_ALLOCZ(s->mbintra_table, s->mb_num);
265
        memset(s->mbintra_table, 1, s->mb_num);
266
        
267
        /* divx501 bitstream reorder buffer */
268
        CHECKED_ALLOCZ(s->bitstream_buffer, BITSTREAM_BUFFER_SIZE);
269
        
270
        /* cbp, ac_pred, pred_dir */
271
        CHECKED_ALLOCZ(s->cbp_table  , s->mb_num * sizeof(UINT8))
272
        CHECKED_ALLOCZ(s->pred_dir_table, s->mb_num * sizeof(UINT8))
273
        
274
        CHECKED_ALLOCZ(s->qscale_table  , s->mb_num * sizeof(UINT8))
275
    }
276
    /* default structure is frame */
277
    s->picture_structure = PICT_FRAME;
278
    
279
    /* init macroblock skip table */
280
    CHECKED_ALLOCZ(s->mbskip_table, s->mb_num);
281
    
282
    s->block= s->blocks[0];
283

    
284
    s->context_initialized = 1;
285
    return 0;
286
 fail:
287
    MPV_common_end(s);
288
    return -1;
289
}
290

    
291

    
292
//extern int sads;
293

    
294
/* init common structure for both encoder and decoder */
295
void MPV_common_end(MpegEncContext *s)
296
{
297
    int i;
298

    
299
    av_freep(&s->mb_type);
300
    av_freep(&s->mb_var);
301
    av_freep(&s->mc_mb_var);
302
    av_freep(&s->p_mv_table);
303
    av_freep(&s->b_forw_mv_table);
304
    av_freep(&s->b_back_mv_table);
305
    av_freep(&s->b_bidir_forw_mv_table);
306
    av_freep(&s->b_bidir_back_mv_table);
307
    av_freep(&s->b_direct_forw_mv_table);
308
    av_freep(&s->b_direct_back_mv_table);
309
    av_freep(&s->b_direct_mv_table);
310
    av_freep(&s->motion_val);
311
    av_freep(&s->dc_val[0]);
312
    av_freep(&s->ac_val[0]);
313
    av_freep(&s->coded_block);
314
    av_freep(&s->mbintra_table);
315
    av_freep(&s->cbp_table);
316
    av_freep(&s->pred_dir_table);
317
    av_freep(&s->qscale_table);
318
    av_freep(&s->me_scratchpad);
319
    av_freep(&s->me_map);
320
    av_freep(&s->me_score_map);
321
    
322
    av_freep(&s->mbskip_table);
323
    av_freep(&s->bitstream_buffer);
324
    av_freep(&s->tex_pb_buffer);
325
    av_freep(&s->pb2_buffer);
326
    av_freep(&s->edge_emu_buffer);
327
    
328
    for(i=0;i<3;i++) {
329
        int j;
330
        if(!(s->flags&CODEC_FLAG_DR1)){
331
            av_freep(&s->last_picture_base[i]);
332
            av_freep(&s->next_picture_base[i]);
333
            av_freep(&s->aux_picture_base[i]);
334
        }
335
        s->last_picture_base[i]=
336
        s->next_picture_base[i]=
337
        s->aux_picture_base [i] = NULL;
338
        s->last_picture[i]=
339
        s->next_picture[i]=
340
        s->aux_picture [i] = NULL;
341

    
342
        for(j=0; j<REORDER_BUFFER_SIZE; j++){
343
            av_freep(&s->picture_buffer[j][i]);
344
        }
345
    }
346
    s->context_initialized = 0;
347
}
348

    
349
/* init video encoder */
350
int MPV_encode_init(AVCodecContext *avctx)
351
{
352
    MpegEncContext *s = avctx->priv_data;
353
    int i;
354

    
355
    avctx->pix_fmt = PIX_FMT_YUV420P;
356

    
357
    s->bit_rate = avctx->bit_rate;
358
    s->bit_rate_tolerance = avctx->bit_rate_tolerance;
359
    s->frame_rate = avctx->frame_rate;
360
    s->width = avctx->width;
361
    s->height = avctx->height;
362
    if(avctx->gop_size > 600){
363
        fprintf(stderr, "Warning keyframe interval too large! reducing it ...\n");
364
        avctx->gop_size=600;
365
    }
366
    s->gop_size = avctx->gop_size;
367
    s->rtp_mode = avctx->rtp_mode;
368
    s->rtp_payload_size = avctx->rtp_payload_size;
369
    if (avctx->rtp_callback)
370
        s->rtp_callback = avctx->rtp_callback;
371
    s->qmin= avctx->qmin;
372
    s->qmax= avctx->qmax;
373
    s->max_qdiff= avctx->max_qdiff;
374
    s->qcompress= avctx->qcompress;
375
    s->qblur= avctx->qblur;
376
    s->b_quant_factor= avctx->b_quant_factor;
377
    s->b_quant_offset= avctx->b_quant_offset;
378
    s->avctx = avctx;
379
    s->aspect_ratio_info= avctx->aspect_ratio_info;
380
    s->flags= avctx->flags;
381
    s->max_b_frames= avctx->max_b_frames;
382
    s->rc_strategy= avctx->rc_strategy;
383
    s->b_frame_strategy= avctx->b_frame_strategy;
384
    s->codec_id= avctx->codec->id;
385
    s->luma_elim_threshold  = avctx->luma_elim_threshold;
386
    s->chroma_elim_threshold= avctx->chroma_elim_threshold;
387
    s->strict_std_compliance= avctx->strict_std_compliance;
388
    s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
389

    
390
    if (s->gop_size <= 1) {
391
        s->intra_only = 1;
392
        s->gop_size = 12;
393
    } else {
394
        s->intra_only = 0;
395
    }
396
    
397
    /* ME algorithm */
398
    if (avctx->me_method == 0)
399
        /* For compatibility */
400
        s->me_method = motion_estimation_method;
401
    else
402
        s->me_method = avctx->me_method;
403
        
404
    /* Fixed QSCALE */
405
    s->fixed_qscale = (avctx->flags & CODEC_FLAG_QSCALE);
406
    
407
    switch(avctx->codec->id) {
408
    case CODEC_ID_MPEG1VIDEO:
409
        s->out_format = FMT_MPEG1;
410
        avctx->delay=0; //FIXME not sure, should check the spec
411
        break;
412
    case CODEC_ID_MJPEG:
413
        s->out_format = FMT_MJPEG;
414
        s->intra_only = 1; /* force intra only for jpeg */
415
        s->mjpeg_write_tables = 1; /* write all tables */
416
        s->mjpeg_data_only_frames = 0; /* write all the needed headers */
417
        s->mjpeg_vsample[0] = 2; /* set up default sampling factors */
418
        s->mjpeg_vsample[1] = 1; /* the only currently supported values */
419
        s->mjpeg_vsample[2] = 1; 
420
        s->mjpeg_hsample[0] = 2;
421
        s->mjpeg_hsample[1] = 1; 
422
        s->mjpeg_hsample[2] = 1; 
423
        if (mjpeg_init(s) < 0)
424
            return -1;
425
        avctx->delay=0;
426
        break;
427
    case CODEC_ID_H263:
428
        if (h263_get_picture_format(s->width, s->height) == 7) {
429
            printf("Input picture size isn't suitable for h263 codec! try h263+\n");
430
            return -1;
431
        }
432
        s->out_format = FMT_H263;
433
        avctx->delay=0;
434
        break;
435
    case CODEC_ID_H263P:
436
        s->out_format = FMT_H263;
437
        s->rtp_mode = 1;
438
        s->rtp_payload_size = 1200; 
439
        s->h263_plus = 1;
440
        s->unrestricted_mv = 1;
441
        s->h263_aic = 1;
442
        
443
        /* These are just to be sure */
444
        s->umvplus = 0;
445
        s->umvplus_dec = 0;
446
        avctx->delay=0;
447
        break;
448
    case CODEC_ID_RV10:
449
        s->out_format = FMT_H263;
450
        s->h263_rv10 = 1;
451
        avctx->delay=0;
452
        break;
453
    case CODEC_ID_MPEG4:
454
        s->out_format = FMT_H263;
455
        s->h263_pred = 1;
456
        s->unrestricted_mv = 1;
457
        s->has_b_frames= s->max_b_frames ? 1 : 0;
458
        s->low_delay=0;
459
        avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1); 
460
        break;
461
    case CODEC_ID_MSMPEG4V1:
462
        s->out_format = FMT_H263;
463
        s->h263_msmpeg4 = 1;
464
        s->h263_pred = 1;
465
        s->unrestricted_mv = 1;
466
        s->msmpeg4_version= 1;
467
        avctx->delay=0;
468
        break;
469
    case CODEC_ID_MSMPEG4V2:
470
        s->out_format = FMT_H263;
471
        s->h263_msmpeg4 = 1;
472
        s->h263_pred = 1;
473
        s->unrestricted_mv = 1;
474
        s->msmpeg4_version= 2;
475
        avctx->delay=0;
476
        break;
477
    case CODEC_ID_MSMPEG4V3:
478
        s->out_format = FMT_H263;
479
        s->h263_msmpeg4 = 1;
480
        s->h263_pred = 1;
481
        s->unrestricted_mv = 1;
482
        s->msmpeg4_version= 3;
483
        avctx->delay=0;
484
        break;
485
    case CODEC_ID_WMV1:
486
        s->out_format = FMT_H263;
487
        s->h263_msmpeg4 = 1;
488
        s->h263_pred = 1;
489
        s->unrestricted_mv = 1;
490
        s->msmpeg4_version= 4;
491
        avctx->delay=0;
492
        break;
493
    case CODEC_ID_WMV2:
494
        s->out_format = FMT_H263;
495
        s->h263_msmpeg4 = 1;
496
        s->h263_pred = 1;
497
        s->unrestricted_mv = 1;
498
        s->msmpeg4_version= 5;
499
        avctx->delay=0;
500
        break;
501
    default:
502
        return -1;
503
    }
504
    
505
    { /* set up some save defaults, some codecs might override them later */
506
        static int done=0;
507
        if(!done){
508
            int i;
509
            done=1;
510
            memset(default_mv_penalty, 0, sizeof(UINT16)*(MAX_FCODE+1)*(2*MAX_MV+1));
511
            memset(default_fcode_tab , 0, sizeof(UINT8)*(2*MAX_MV+1));
512

    
513
            for(i=-16; i<16; i++){
514
                default_fcode_tab[i + MAX_MV]= 1;
515
            }
516
        }
517
    }
518
    s->mv_penalty= default_mv_penalty;
519
    s->fcode_tab= default_fcode_tab;
520
    s->y_dc_scale_table=
521
    s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
522
 
523
    if (s->out_format == FMT_H263)
524
        h263_encode_init(s);
525
    else if (s->out_format == FMT_MPEG1)
526
        ff_mpeg1_encode_init(s);
527
    if(s->msmpeg4_version)
528
        ff_msmpeg4_encode_init(s);
529

    
530
    /* dont use mv_penalty table for crap MV as it would be confused */
531
    if (s->me_method < ME_EPZS) s->mv_penalty = default_mv_penalty;
532

    
533
    s->encoding = 1;
534

    
535
    /* init */
536
    if (MPV_common_init(s) < 0)
537
        return -1;
538
    
539
    /* init default q matrix */
540
    for(i=0;i<64;i++) {
541
        if(s->out_format == FMT_H263)
542
            s->intra_matrix[i] = ff_mpeg1_default_non_intra_matrix[i];
543
        else
544
            s->intra_matrix[i] = ff_mpeg1_default_intra_matrix[i];
545

    
546
        s->inter_matrix[i] = ff_mpeg1_default_non_intra_matrix[i];
547
    }
548

    
549
    /* precompute matrix */
550
    /* for mjpeg, we do include qscale in the matrix */
551
    if (s->out_format != FMT_MJPEG) {
552
        convert_matrix(s->q_intra_matrix, s->q_intra_matrix16, s->q_intra_matrix16_bias, 
553
                       s->intra_matrix, s->intra_quant_bias);
554
        convert_matrix(s->q_inter_matrix, s->q_inter_matrix16, s->q_inter_matrix16_bias, 
555
                       s->inter_matrix, s->inter_quant_bias);
556
    }
557

    
558
    if(ff_rate_control_init(s) < 0)
559
        return -1;
560

    
561
    s->picture_number = 0;
562
    s->picture_in_gop_number = 0;
563
    s->fake_picture_number = 0;
564
    /* motion detector init */
565
    s->f_code = 1;
566
    s->b_code = 1;
567

    
568
    return 0;
569
}
570

    
571
int MPV_encode_end(AVCodecContext *avctx)
572
{
573
    MpegEncContext *s = avctx->priv_data;
574

    
575
#ifdef STATS
576
    print_stats();
577
#endif
578

    
579
    ff_rate_control_uninit(s);
580

    
581
    MPV_common_end(s);
582
    if (s->out_format == FMT_MJPEG)
583
        mjpeg_close(s);
584
      
585
    return 0;
586
}
587

    
588
/* draw the edges of width 'w' of an image of size width, height */
589
static void draw_edges_c(UINT8 *buf, int wrap, int width, int height, int w)
590
{
591
    UINT8 *ptr, *last_line;
592
    int i;
593

    
594
    last_line = buf + (height - 1) * wrap;
595
    for(i=0;i<w;i++) {
596
        /* top and bottom */
597
        memcpy(buf - (i + 1) * wrap, buf, width);
598
        memcpy(last_line + (i + 1) * wrap, last_line, width);
599
    }
600
    /* left and right */
601
    ptr = buf;
602
    for(i=0;i<height;i++) {
603
        memset(ptr - w, ptr[0], w);
604
        memset(ptr + width, ptr[width-1], w);
605
        ptr += wrap;
606
    }
607
    /* corners */
608
    for(i=0;i<w;i++) {
609
        memset(buf - (i + 1) * wrap - w, buf[0], w); /* top left */
610
        memset(buf - (i + 1) * wrap + width, buf[width-1], w); /* top right */
611
        memset(last_line + (i + 1) * wrap - w, last_line[0], w); /* top left */
612
        memset(last_line + (i + 1) * wrap + width, last_line[width-1], w); /* top right */
613
    }
614
}
615

    
616
/* generic function for encode/decode called before a frame is coded/decoded */
617
void MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
618
{
619
    int i;
620
    UINT8 *tmp;
621

    
622
    s->mb_skiped = 0;
623
    s->decoding_error=0;
624
    avctx->mbskip_table= s->mbskip_table;
625

    
626
    if(avctx->flags&CODEC_FLAG_DR1){
627
        int i;
628
        avctx->get_buffer_callback(avctx, s->width, s->height, s->pict_type);
629

    
630
        s->linesize  = avctx->dr_stride;
631
        s->uvlinesize= avctx->dr_uvstride;
632
        s->ip_buffer_count= avctx->dr_ip_buffer_count;
633
    }
634
    avctx->dr_ip_buffer_count= s->ip_buffer_count;
635
    
636
    if (s->pict_type == B_TYPE) {
637
        for(i=0;i<3;i++) {
638
            if(avctx->flags&CODEC_FLAG_DR1)
639
                s->aux_picture[i]= avctx->dr_buffer[i];
640

    
641
            s->current_picture[i] = s->aux_picture[i];
642
        }
643
    } else {
644
        for(i=0;i<3;i++) {
645
            /* swap next and last */
646
            if(avctx->flags&CODEC_FLAG_DR1)
647
                tmp= avctx->dr_buffer[i];
648
            else
649
                tmp = s->last_picture[i];
650

    
651
            s->last_picture[i] = s->next_picture[i];
652
            s->next_picture[i] = tmp;
653
            s->current_picture[i] = tmp;
654

    
655
            s->last_dr_opaque= s->next_dr_opaque;
656
            s->next_dr_opaque= avctx->dr_opaque_frame;
657

    
658
            if(s->has_b_frames && s->last_dr_opaque && s->codec_id!=CODEC_ID_SVQ1)
659
                avctx->dr_opaque_frame= s->last_dr_opaque;
660
            else
661
                avctx->dr_opaque_frame= s->next_dr_opaque;
662
        }
663
    }
664
}
665

    
666
/* generic function for encode/decode called after a frame has been coded/decoded */
667
void MPV_frame_end(MpegEncContext *s)
668
{
669
//    if((s->picture_number%100)==0 && s->encoding) printf("sads:%d //\n", sads);
670

    
671
    /* draw edge for correct motion prediction if outside */
672
    if (s->pict_type != B_TYPE && !s->intra_only && !(s->flags&CODEC_FLAG_EMU_EDGE)) {
673
      if(s->avctx==NULL || s->avctx->codec->id!=CODEC_ID_MPEG4 || s->divx_version>=500){
674
        draw_edges(s->current_picture[0], s->linesize, s->mb_width*16, s->mb_height*16, EDGE_WIDTH);
675
        draw_edges(s->current_picture[1], s->uvlinesize, s->mb_width*8, s->mb_height*8, EDGE_WIDTH/2);
676
        draw_edges(s->current_picture[2], s->uvlinesize, s->mb_width*8, s->mb_height*8, EDGE_WIDTH/2);
677
      }else{
678
        /* mpeg4? / opendivx / xvid */
679
        draw_edges(s->current_picture[0], s->linesize, s->width, s->height, EDGE_WIDTH);
680
        draw_edges(s->current_picture[1], s->uvlinesize, s->width/2, s->height/2, EDGE_WIDTH/2);
681
        draw_edges(s->current_picture[2], s->uvlinesize, s->width/2, s->height/2, EDGE_WIDTH/2);
682
      }
683
    }
684
    emms_c();
685
    
686
    if(s->pict_type!=B_TYPE){
687
        s->last_non_b_pict_type= s->pict_type;
688
        s->last_non_b_qscale= s->qscale;
689
        s->last_non_b_mc_mb_var= s->mc_mb_var_sum;
690
        s->num_available_buffers++;
691
        if(s->num_available_buffers>2) s->num_available_buffers= 2;
692
    }
693
}
694

    
695
/* reorder input for encoding */
696
void reorder_input(MpegEncContext *s, AVPicture *pict)
697
{
698
    int i, j, index;
699
            
700
    if(s->max_b_frames > FF_MAX_B_FRAMES) s->max_b_frames= FF_MAX_B_FRAMES;
701

    
702
//        delay= s->max_b_frames+1; (or 0 if no b frames cuz decoder diff)
703

    
704
    for(j=0; j<REORDER_BUFFER_SIZE-1; j++){
705
        s->coded_order[j]= s->coded_order[j+1];
706
    }
707
    s->coded_order[j].picture[0]= s->coded_order[j].picture[1]= s->coded_order[j].picture[2]= NULL; //catch uninitalized buffers
708
    s->coded_order[j].pict_type=0;
709

    
710
    switch(s->input_pict_type){
711
    default: 
712
    case I_TYPE:
713
    case S_TYPE:
714
    case P_TYPE:
715
        index= s->max_b_frames - s->b_frames_since_non_b;
716
        s->b_frames_since_non_b=0;
717
        break;            
718
    case B_TYPE:
719
        index= s->max_b_frames + 1;
720
        s->b_frames_since_non_b++;
721
        break;          
722
    }
723
//printf("index:%d type:%d strides: %d %d\n", index, s->input_pict_type, pict->linesize[0], s->linesize);
724
    if(   (index==0 || (s->flags&CODEC_FLAG_INPUT_PRESERVED))
725
       && pict->linesize[0] == s->linesize
726
       && pict->linesize[1] == s->uvlinesize
727
       && pict->linesize[2] == s->uvlinesize){
728
//printf("ptr\n");
729
        for(i=0; i<3; i++){
730
            s->coded_order[index].picture[i]= pict->data[i];
731
        }
732
    }else{
733
//printf("copy\n");
734
        for(i=0; i<3; i++){
735
            uint8_t *src = pict->data[i];
736
            uint8_t *dest;
737
            int src_wrap = pict->linesize[i];
738
            int dest_wrap = s->linesize;
739
            int w = s->width;
740
            int h = s->height;
741

    
742
            if(index==0) dest= s->last_picture[i]+16; //is current_picture indeed but the switch hapens after reordering
743
            else         dest= s->picture_buffer[s->picture_buffer_index][i];
744

    
745
            if (i >= 1) {
746
                dest_wrap >>= 1;
747
                w >>= 1;
748
                h >>= 1;
749
            }
750

    
751
            s->coded_order[index].picture[i]= dest;
752
            for(j=0;j<h;j++) {
753
                memcpy(dest, src, w);
754
                dest += dest_wrap;
755
                src += src_wrap;
756
            }
757
        }
758
        if(index!=0){
759
            s->picture_buffer_index++;
760
            if(s->picture_buffer_index >= REORDER_BUFFER_SIZE-1) s->picture_buffer_index=0;
761
        }
762
    }
763
    s->coded_order[index].pict_type = s->input_pict_type;
764
    s->coded_order[index].qscale    = s->input_qscale;
765
    s->coded_order[index].force_type= s->force_input_type;
766
    s->coded_order[index].picture_in_gop_number= s->input_picture_in_gop_number;
767
    s->coded_order[index].picture_number= s->input_picture_number;
768

    
769
    for(i=0; i<3; i++){
770
        s->new_picture[i]= s->coded_order[0].picture[i];
771
    }
772
}
773

    
774
int MPV_encode_picture(AVCodecContext *avctx,
775
                       unsigned char *buf, int buf_size, void *data)
776
{
777
    MpegEncContext *s = avctx->priv_data;
778
    AVPicture *pict = data;
779

    
780
    s->input_qscale = avctx->quality;
781

    
782
    init_put_bits(&s->pb, buf, buf_size, NULL, NULL);
783

    
784
    if(avctx->flags&CODEC_FLAG_TYPE){
785
        s->input_pict_type=
786
        s->force_input_type= avctx->key_frame ? I_TYPE : P_TYPE;
787
    }else if(s->flags&CODEC_FLAG_PASS2){
788
        s->input_pict_type=
789
        s->force_input_type= s->rc_context.entry[s->input_picture_number].new_pict_type;
790
    }else{
791
        s->force_input_type=0;
792
        if (!s->intra_only) {
793
            /* first picture of GOP is intra */
794
            if (s->input_picture_in_gop_number % s->gop_size==0){
795
                s->input_pict_type = I_TYPE;
796
            }else if(s->max_b_frames==0){
797
                s->input_pict_type = P_TYPE;
798
            }else{
799
                if(s->b_frames_since_non_b < s->max_b_frames) //FIXME more IQ
800
                    s->input_pict_type = B_TYPE;
801
                else
802
                    s->input_pict_type = P_TYPE;
803
            }
804
        } else {
805
            s->input_pict_type = I_TYPE;
806
        }
807
    }
808

    
809
    if(s->input_pict_type==I_TYPE)
810
        s->input_picture_in_gop_number=0;
811
    
812
    reorder_input(s, pict);
813
    
814
    /* output? */
815
    if(s->coded_order[0].picture[0]){
816

    
817
        s->pict_type= s->coded_order[0].pict_type;
818
        if (s->fixed_qscale) /* the ratecontrol needs the last qscale so we dont touch it for CBR */
819
            s->qscale= s->coded_order[0].qscale;
820
        s->force_type= s->coded_order[0].force_type;
821
        s->picture_in_gop_number= s->coded_order[0].picture_in_gop_number;
822
        s->picture_number= s->coded_order[0].picture_number;
823

    
824
        MPV_frame_start(s, avctx);
825

    
826
        encode_picture(s, s->picture_number);
827
        avctx->key_frame   = (s->pict_type == I_TYPE);
828
        avctx->pict_type   = s->pict_type;
829
        avctx->real_pict_num  = s->picture_number;
830
        avctx->header_bits = s->header_bits;
831
        avctx->mv_bits     = s->mv_bits;
832
        avctx->misc_bits   = s->misc_bits;
833
        avctx->i_tex_bits  = s->i_tex_bits;
834
        avctx->p_tex_bits  = s->p_tex_bits;
835
        avctx->i_count     = s->i_count;
836
        avctx->p_count     = s->p_count;
837
        avctx->skip_count  = s->skip_count;
838

    
839
        MPV_frame_end(s);
840

    
841
        if (s->out_format == FMT_MJPEG)
842
            mjpeg_picture_trailer(s);
843

    
844
        avctx->quality = s->qscale;
845
        
846
        if(s->flags&CODEC_FLAG_PASS1)
847
            ff_write_pass1_stats(s);
848
    
849
    }
850

    
851
    s->input_picture_number++;
852
    s->input_picture_in_gop_number++;
853

    
854
    flush_put_bits(&s->pb);
855
    s->frame_bits  = (pbBufPtr(&s->pb) - s->pb.buf) * 8;
856
    if(s->pict_type==B_TYPE) s->pb_frame_bits+= s->frame_bits;
857
    else                     s->pb_frame_bits= s->frame_bits;
858

    
859
    s->total_bits += s->frame_bits;
860
    avctx->frame_bits  = s->frame_bits;
861
//printf("fcode: %d, type: %d, head: %d, mv: %d, misc: %d, frame: %d, itex: %d, ptex: %d\n", 
862
//s->f_code, avctx->key_frame, s->header_bits, s->mv_bits, s->misc_bits, s->frame_bits, s->i_tex_bits, s->p_tex_bits);
863

    
864
    if (avctx->get_psnr) {
865
        /* At this point pict->data should have the original frame   */
866
        /* an s->current_picture should have the coded/decoded frame */
867
        get_psnr(pict->data, s->current_picture,
868
                 pict->linesize, s->linesize, avctx);
869
//        printf("%f\n", avctx->psnr_y);
870
    }
871
    return pbBufPtr(&s->pb) - s->pb.buf;
872
}
873

    
874
static inline void gmc1_motion(MpegEncContext *s,
875
                               UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
876
                               int dest_offset,
877
                               UINT8 **ref_picture, int src_offset,
878
                               int h)
879
{
880
    UINT8 *ptr;
881
    int offset, src_x, src_y, linesize, uvlinesize;
882
    int motion_x, motion_y;
883
    int emu=0;
884

    
885
    if(s->real_sprite_warping_points>1) printf("more than 1 warp point isnt supported\n");
886
    motion_x= s->sprite_offset[0][0];
887
    motion_y= s->sprite_offset[0][1];
888
    src_x = s->mb_x * 16 + (motion_x >> (s->sprite_warping_accuracy+1));
889
    src_y = s->mb_y * 16 + (motion_y >> (s->sprite_warping_accuracy+1));
890
    motion_x<<=(3-s->sprite_warping_accuracy);
891
    motion_y<<=(3-s->sprite_warping_accuracy);
892
    src_x = clip(src_x, -16, s->width);
893
    if (src_x == s->width)
894
        motion_x =0;
895
    src_y = clip(src_y, -16, s->height);
896
    if (src_y == s->height)
897
        motion_y =0;
898
    
899
    linesize = s->linesize;
900
    uvlinesize = s->uvlinesize;
901
    ptr = ref_picture[0] + (src_y * linesize) + src_x + src_offset;
902

    
903
    dest_y+=dest_offset;
904
    if(s->flags&CODEC_FLAG_EMU_EDGE){
905
        if(src_x<0 || src_y<0 || src_x + (motion_x&15) + 16 > s->width
906
                              || src_y + (motion_y&15) + h  > s->height){
907
            emulated_edge_mc(s, ptr, linesize, 17, h+1, src_x, src_y, s->width, s->height);
908
            ptr= s->edge_emu_buffer;
909
            emu=1;
910
        }
911
    }
912
    gmc1(dest_y  , ptr  , linesize, h, motion_x&15, motion_y&15, s->no_rounding);
913
    gmc1(dest_y+8, ptr+8, linesize, h, motion_x&15, motion_y&15, s->no_rounding);
914

    
915
    motion_x= s->sprite_offset[1][0];
916
    motion_y= s->sprite_offset[1][1];
917
    src_x = s->mb_x * 8 + (motion_x >> (s->sprite_warping_accuracy+1));
918
    src_y = s->mb_y * 8 + (motion_y >> (s->sprite_warping_accuracy+1));
919
    motion_x<<=(3-s->sprite_warping_accuracy);
920
    motion_y<<=(3-s->sprite_warping_accuracy);
921
    src_x = clip(src_x, -8, s->width>>1);
922
    if (src_x == s->width>>1)
923
        motion_x =0;
924
    src_y = clip(src_y, -8, s->height>>1);
925
    if (src_y == s->height>>1)
926
        motion_y =0;
927

    
928
    offset = (src_y * uvlinesize) + src_x + (src_offset>>1);
929
    ptr = ref_picture[1] + offset;
930
    if(emu){
931
        emulated_edge_mc(s, ptr, uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, s->height>>1);
932
        ptr= s->edge_emu_buffer;
933
    }
934
    gmc1(dest_cb + (dest_offset>>1), ptr, uvlinesize, h>>1, motion_x&15, motion_y&15, s->no_rounding);
935
    
936
    ptr = ref_picture[2] + offset;
937
    if(emu){
938
        emulated_edge_mc(s, ptr, uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, s->height>>1);
939
        ptr= s->edge_emu_buffer;
940
    }
941
    gmc1(dest_cr + (dest_offset>>1), ptr, uvlinesize, h>>1, motion_x&15, motion_y&15, s->no_rounding);
942
    
943
    return;
944
}
945

    
946
static void emulated_edge_mc(MpegEncContext *s, UINT8 *src, int linesize, int block_w, int block_h, 
947
                                    int src_x, int src_y, int w, int h){
948
    int x, y;
949
    int start_y, start_x, end_y, end_x;
950
    UINT8 *buf= s->edge_emu_buffer;
951
#if 0
952
    if(s->codec_id!=CODEC_ID_MPEG4 || s->divx_version>=500){
953
        if(block_w < 10){
954
            w= (w+7)&(~7);
955
            h= (h+7)&(~7);
956
        }else{
957
            w= (w+15)&(~15);
958
            h= (h+15)&(~15);
959
        }
960
    }
961
#endif
962
    if(src_y>= h){
963
        src+= (h-1-src_y)*linesize;
964
        src_y=h-1;
965
    }else if(src_y<=-block_h){
966
        src+= (1-block_h-src_y)*linesize;
967
        src_y=1-block_h;
968
    }
969
    if(src_x>= w){
970
        src+= (w-1-src_x);
971
        src_x=w-1;
972
    }else if(src_x<=-block_w){
973
        src+= (1-block_w-src_x);
974
        src_x=1-block_w;
975
    }
976

    
977
    start_y= MAX(0, -src_y);
978
    start_x= MAX(0, -src_x);
979
    end_y= MIN(block_h, h-src_y);
980
    end_x= MIN(block_w, w-src_x);
981

    
982
    // copy existing part
983
    for(y=start_y; y<end_y; y++){
984
        for(x=start_x; x<end_x; x++){
985
            buf[x + y*linesize]= src[x + y*linesize];
986
        }
987
    }
988

    
989
    //top
990
    for(y=0; y<start_y; y++){
991
        for(x=start_x; x<end_x; x++){
992
            buf[x + y*linesize]= buf[x + start_y*linesize];
993
        }
994
    }
995

    
996
    //bottom
997
    for(y=end_y; y<block_h; y++){
998
        for(x=start_x; x<end_x; x++){
999
            buf[x + y*linesize]= buf[x + (end_y-1)*linesize];
1000
        }
1001
    }
1002
                                    
1003
    for(y=0; y<block_h; y++){
1004
       //left
1005
        for(x=0; x<start_x; x++){
1006
            buf[x + y*linesize]= buf[start_x + y*linesize];
1007
        }
1008
       
1009
       //right
1010
        for(x=end_x; x<block_w; x++){
1011
            buf[x + y*linesize]= buf[end_x - 1 + y*linesize];
1012
        }
1013
    }
1014
}
1015

    
1016

    
1017
/* apply one mpeg motion vector to the three components */
1018
static inline void mpeg_motion(MpegEncContext *s,
1019
                               UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
1020
                               int dest_offset,
1021
                               UINT8 **ref_picture, int src_offset,
1022
                               int field_based, op_pixels_func *pix_op,
1023
                               int motion_x, int motion_y, int h)
1024
{
1025
    UINT8 *ptr;
1026
    int dxy, offset, mx, my, src_x, src_y, height, linesize, uvlinesize;
1027
    int emu=0;
1028
    
1029
if(s->quarter_sample)
1030
{
1031
    motion_x>>=1;
1032
    motion_y>>=1;
1033
}
1034
    dxy = ((motion_y & 1) << 1) | (motion_x & 1);
1035
    src_x = s->mb_x * 16 + (motion_x >> 1);
1036
    src_y = s->mb_y * (16 >> field_based) + (motion_y >> 1);
1037
                
1038
    /* WARNING: do no forget half pels */
1039
    height = s->height >> field_based;
1040
    src_x = clip(src_x, -16, s->width);
1041
    if (src_x == s->width)
1042
        dxy &= ~1;
1043
    src_y = clip(src_y, -16, height);
1044
    if (src_y == height)
1045
        dxy &= ~2;
1046
    linesize   = s->linesize << field_based;
1047
    uvlinesize = s->uvlinesize << field_based;
1048
    ptr = ref_picture[0] + (src_y * linesize) + (src_x) + src_offset;
1049
    dest_y += dest_offset;
1050

    
1051
    if(s->flags&CODEC_FLAG_EMU_EDGE){
1052
        if(src_x<0 || src_y<0 || src_x + (motion_x&1) + 16 > s->width
1053
                              || src_y + (motion_y&1) + h  > height){
1054
            emulated_edge_mc(s, ptr, linesize, 17, h+1, src_x, src_y, s->width, height);
1055
            ptr= s->edge_emu_buffer;
1056
            emu=1;
1057
        }
1058
    }
1059
    pix_op[dxy](dest_y, ptr, linesize, h);
1060
    pix_op[dxy](dest_y + 8, ptr + 8, linesize, h);
1061

    
1062
    if(s->flags&CODEC_FLAG_GRAY) return;
1063

    
1064
    if (s->out_format == FMT_H263) {
1065
        dxy = 0;
1066
        if ((motion_x & 3) != 0)
1067
            dxy |= 1;
1068
        if ((motion_y & 3) != 0)
1069
            dxy |= 2;
1070
        mx = motion_x >> 2;
1071
        my = motion_y >> 2;
1072
    } else {
1073
        mx = motion_x / 2;
1074
        my = motion_y / 2;
1075
        dxy = ((my & 1) << 1) | (mx & 1);
1076
        mx >>= 1;
1077
        my >>= 1;
1078
    }
1079
    
1080
    src_x = s->mb_x * 8 + mx;
1081
    src_y = s->mb_y * (8 >> field_based) + my;
1082
    src_x = clip(src_x, -8, s->width >> 1);
1083
    if (src_x == (s->width >> 1))
1084
        dxy &= ~1;
1085
    src_y = clip(src_y, -8, height >> 1);
1086
    if (src_y == (height >> 1))
1087
        dxy &= ~2;
1088
    offset = (src_y * uvlinesize) + src_x + (src_offset >> 1);
1089
    ptr = ref_picture[1] + offset;
1090
    if(emu){
1091
        emulated_edge_mc(s, ptr, uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, height>>1);
1092
        ptr= s->edge_emu_buffer;
1093
    }
1094
    pix_op[dxy](dest_cb + (dest_offset >> 1), ptr, uvlinesize, h >> 1);
1095

    
1096
    ptr = ref_picture[2] + offset;
1097
    if(emu){
1098
        emulated_edge_mc(s, ptr, uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, height>>1);
1099
        ptr= s->edge_emu_buffer;
1100
    }
1101
    pix_op[dxy](dest_cr + (dest_offset >> 1), ptr, uvlinesize, h >> 1);
1102
}
1103

    
1104
static inline void qpel_motion(MpegEncContext *s,
1105
                               UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
1106
                               int dest_offset,
1107
                               UINT8 **ref_picture, int src_offset,
1108
                               int field_based, op_pixels_func *pix_op,
1109
                               qpel_mc_func *qpix_op,
1110
                               int motion_x, int motion_y, int h)
1111
{
1112
    UINT8 *ptr;
1113
    int dxy, offset, mx, my, src_x, src_y, height, linesize;
1114
    int emu=0;
1115

    
1116
    dxy = ((motion_y & 3) << 2) | (motion_x & 3);
1117
    src_x = s->mb_x * 16 + (motion_x >> 2);
1118
    src_y = s->mb_y * (16 >> field_based) + (motion_y >> 2);
1119

    
1120
    height = s->height >> field_based;
1121
    src_x = clip(src_x, -16, s->width);
1122
    if (src_x == s->width)
1123
        dxy &= ~3;
1124
    src_y = clip(src_y, -16, height);
1125
    if (src_y == height)
1126
        dxy &= ~12;
1127
    linesize = s->linesize << field_based;
1128
    ptr = ref_picture[0] + (src_y * linesize) + src_x + src_offset;
1129
    dest_y += dest_offset;
1130
//printf("%d %d %d\n", src_x, src_y, dxy);
1131
    
1132
    if(s->flags&CODEC_FLAG_EMU_EDGE){
1133
        if(src_x<0 || src_y<0 || src_x + (motion_x&3) + 16 > s->width
1134
                              || src_y + (motion_y&3) + h  > height){
1135
            emulated_edge_mc(s, ptr, linesize, 17, h+1, src_x, src_y, s->width, height);
1136
            ptr= s->edge_emu_buffer;
1137
            emu=1;
1138
        }
1139
    }
1140
    qpix_op[dxy](dest_y                 , ptr                 , linesize, linesize, motion_x&3, motion_y&3);
1141
    qpix_op[dxy](dest_y              + 8, ptr              + 8, linesize, linesize, motion_x&3, motion_y&3);
1142
    qpix_op[dxy](dest_y + linesize*8    , ptr + linesize*8    , linesize, linesize, motion_x&3, motion_y&3);
1143
    qpix_op[dxy](dest_y + linesize*8 + 8, ptr + linesize*8 + 8, linesize, linesize, motion_x&3, motion_y&3);
1144
    
1145
    if(s->flags&CODEC_FLAG_GRAY) return;
1146

    
1147
    mx= (motion_x>>1) | (motion_x&1);
1148
    my= (motion_y>>1) | (motion_y&1);
1149

    
1150
    dxy = 0;
1151
    if ((mx & 3) != 0)
1152
        dxy |= 1;
1153
    if ((my & 3) != 0)
1154
        dxy |= 2;
1155
    mx = mx >> 2;
1156
    my = my >> 2;
1157
    
1158
    src_x = s->mb_x * 8 + mx;
1159
    src_y = s->mb_y * (8 >> field_based) + my;
1160
    src_x = clip(src_x, -8, s->width >> 1);
1161
    if (src_x == (s->width >> 1))
1162
        dxy &= ~1;
1163
    src_y = clip(src_y, -8, height >> 1);
1164
    if (src_y == (height >> 1))
1165
        dxy &= ~2;
1166

    
1167
    offset = (src_y * s->uvlinesize) + src_x + (src_offset >> 1);
1168
    ptr = ref_picture[1] + offset;
1169
    if(emu){
1170
        emulated_edge_mc(s, ptr,  s->uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, height>>1);
1171
        ptr= s->edge_emu_buffer;
1172
    }
1173
    pix_op[dxy](dest_cb + (dest_offset >> 1), ptr,  s->uvlinesize, h >> 1);
1174
    
1175
    ptr = ref_picture[2] + offset;
1176
    if(emu){
1177
        emulated_edge_mc(s, ptr,  s->uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, height>>1);
1178
        ptr= s->edge_emu_buffer;
1179
    }
1180
    pix_op[dxy](dest_cr + (dest_offset >> 1), ptr,  s->uvlinesize, h >> 1);
1181
}
1182

    
1183

    
1184
static inline void MPV_motion(MpegEncContext *s, 
1185
                              UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
1186
                              int dir, UINT8 **ref_picture, 
1187
                              op_pixels_func *pix_op, qpel_mc_func *qpix_op)
1188
{
1189
    int dxy, offset, mx, my, src_x, src_y, motion_x, motion_y;
1190
    int mb_x, mb_y, i;
1191
    UINT8 *ptr, *dest;
1192
    int emu=0;
1193

    
1194
    mb_x = s->mb_x;
1195
    mb_y = s->mb_y;
1196

    
1197
    switch(s->mv_type) {
1198
    case MV_TYPE_16X16:
1199
        if(s->mcsel){
1200
#if 0
1201
            mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
1202
                        ref_picture, 0,
1203
                        0, pix_op,
1204
                        s->sprite_offset[0][0]>>3,
1205
                        s->sprite_offset[0][1]>>3,
1206
                        16);
1207
#else
1208
            gmc1_motion(s, dest_y, dest_cb, dest_cr, 0,
1209
                        ref_picture, 0,
1210
                        16);
1211
#endif
1212
        }else if(s->quarter_sample && dir==0){ //FIXME
1213
            qpel_motion(s, dest_y, dest_cb, dest_cr, 0,
1214
                        ref_picture, 0,
1215
                        0, pix_op, qpix_op,
1216
                        s->mv[dir][0][0], s->mv[dir][0][1], 16);
1217
        }else{
1218
            mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
1219
                        ref_picture, 0,
1220
                        0, pix_op,
1221
                        s->mv[dir][0][0], s->mv[dir][0][1], 16);
1222
        }           
1223
        break;
1224
    case MV_TYPE_8X8:
1225
        for(i=0;i<4;i++) {
1226
            motion_x = s->mv[dir][i][0];
1227
            motion_y = s->mv[dir][i][1];
1228

    
1229
            dxy = ((motion_y & 1) << 1) | (motion_x & 1);
1230
            src_x = mb_x * 16 + (motion_x >> 1) + (i & 1) * 8;
1231
            src_y = mb_y * 16 + (motion_y >> 1) + (i >>1) * 8;
1232
                    
1233
            /* WARNING: do no forget half pels */
1234
            src_x = clip(src_x, -16, s->width);
1235
            if (src_x == s->width)
1236
                dxy &= ~1;
1237
            src_y = clip(src_y, -16, s->height);
1238
            if (src_y == s->height)
1239
                dxy &= ~2;
1240
                    
1241
            ptr = ref_picture[0] + (src_y * s->linesize) + (src_x);
1242
            if(s->flags&CODEC_FLAG_EMU_EDGE){
1243
                if(src_x<0 || src_y<0 || src_x + (motion_x&1) + 8 > s->width
1244
                                      || src_y + (motion_y&1) + 8 > s->height){
1245
                    emulated_edge_mc(s, ptr, s->linesize, 9, 9, src_x, src_y, s->width, s->height);
1246
                    ptr= s->edge_emu_buffer;
1247
                }
1248
            }
1249
            dest = dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize;
1250
            pix_op[dxy](dest, ptr, s->linesize, 8);
1251
        }
1252
    
1253
        if(s->flags&CODEC_FLAG_GRAY) break;
1254
        /* In case of 8X8, we construct a single chroma motion vector
1255
           with a special rounding */
1256
        mx = 0;
1257
        my = 0;
1258
        for(i=0;i<4;i++) {
1259
            mx += s->mv[dir][i][0];
1260
            my += s->mv[dir][i][1];
1261
        }
1262
        if (mx >= 0)
1263
            mx = (h263_chroma_roundtab[mx & 0xf] + ((mx >> 3) & ~1));
1264
        else {
1265
            mx = -mx;
1266
            mx = -(h263_chroma_roundtab[mx & 0xf] + ((mx >> 3) & ~1));
1267
        }
1268
        if (my >= 0)
1269
            my = (h263_chroma_roundtab[my & 0xf] + ((my >> 3) & ~1));
1270
        else {
1271
            my = -my;
1272
            my = -(h263_chroma_roundtab[my & 0xf] + ((my >> 3) & ~1));
1273
        }
1274
        dxy = ((my & 1) << 1) | (mx & 1);
1275
        mx >>= 1;
1276
        my >>= 1;
1277

    
1278
        src_x = mb_x * 8 + mx;
1279
        src_y = mb_y * 8 + my;
1280
        src_x = clip(src_x, -8, s->width/2);
1281
        if (src_x == s->width/2)
1282
            dxy &= ~1;
1283
        src_y = clip(src_y, -8, s->height/2);
1284
        if (src_y == s->height/2)
1285
            dxy &= ~2;
1286
        
1287
        offset = (src_y * (s->uvlinesize)) + src_x;
1288
        ptr = ref_picture[1] + offset;
1289
        if(s->flags&CODEC_FLAG_EMU_EDGE){
1290
                if(src_x<0 || src_y<0 || src_x + (dxy &1) + 8 > s->width >>1
1291
                                      || src_y + (dxy>>1) + 8 > s->height>>1){
1292
                    emulated_edge_mc(s, ptr, s->uvlinesize, 9, 9, src_x, src_y, s->width>>1, s->height>>1);
1293
                    ptr= s->edge_emu_buffer;
1294
                    emu=1;
1295
                }
1296
            }
1297
        pix_op[dxy](dest_cb, ptr, s->uvlinesize, 8);
1298

    
1299
        ptr = ref_picture[2] + offset;
1300
        if(emu){
1301
            emulated_edge_mc(s, ptr, s->uvlinesize, 9, 9, src_x, src_y, s->width>>1, s->height>>1);
1302
            ptr= s->edge_emu_buffer;
1303
        }
1304
        pix_op[dxy](dest_cr, ptr, s->uvlinesize, 8);
1305
        break;
1306
    case MV_TYPE_FIELD:
1307
        if (s->picture_structure == PICT_FRAME) {
1308
            /* top field */
1309
            mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
1310
                        ref_picture, s->field_select[dir][0] ? s->linesize : 0,
1311
                        1, pix_op,
1312
                        s->mv[dir][0][0], s->mv[dir][0][1], 8);
1313
            /* bottom field */
1314
            mpeg_motion(s, dest_y, dest_cb, dest_cr, s->linesize,
1315
                        ref_picture, s->field_select[dir][1] ? s->linesize : 0,
1316
                        1, pix_op,
1317
                        s->mv[dir][1][0], s->mv[dir][1][1], 8);
1318
        } else {
1319
            
1320

    
1321
        }
1322
        break;
1323
    }
1324
}
1325

    
1326

    
1327
/* put block[] to dest[] */
1328
static inline void put_dct(MpegEncContext *s, 
1329
                           DCTELEM *block, int i, UINT8 *dest, int line_size)
1330
{
1331
    if (!s->mpeg2)
1332
        s->dct_unquantize(s, block, i, s->qscale);
1333
    ff_idct_put (dest, line_size, block);
1334
}
1335

    
1336
/* add block[] to dest[] */
1337
static inline void add_dct(MpegEncContext *s, 
1338
                           DCTELEM *block, int i, UINT8 *dest, int line_size)
1339
{
1340
    if (s->block_last_index[i] >= 0) {
1341
        ff_idct_add (dest, line_size, block);
1342
    }
1343
}
1344

    
1345
static inline void add_dequant_dct(MpegEncContext *s, 
1346
                           DCTELEM *block, int i, UINT8 *dest, int line_size)
1347
{
1348
    if (s->block_last_index[i] >= 0) {
1349
        s->dct_unquantize(s, block, i, s->qscale);
1350

    
1351
        ff_idct_add (dest, line_size, block);
1352
    }
1353
}
1354

    
1355
/**
1356
 * cleans dc, ac, coded_block for the current non intra MB
1357
 */
1358
void ff_clean_intra_table_entries(MpegEncContext *s)
1359
{
1360
    int wrap = s->block_wrap[0];
1361
    int xy = s->block_index[0];
1362
    
1363
    s->dc_val[0][xy           ] = 
1364
    s->dc_val[0][xy + 1       ] = 
1365
    s->dc_val[0][xy     + wrap] =
1366
    s->dc_val[0][xy + 1 + wrap] = 1024;
1367
    /* ac pred */
1368
    memset(s->ac_val[0][xy       ], 0, 32 * sizeof(INT16));
1369
    memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(INT16));
1370
    if (s->msmpeg4_version>=3) {
1371
        s->coded_block[xy           ] =
1372
        s->coded_block[xy + 1       ] =
1373
        s->coded_block[xy     + wrap] =
1374
        s->coded_block[xy + 1 + wrap] = 0;
1375
    }
1376
    /* chroma */
1377
    wrap = s->block_wrap[4];
1378
    xy = s->mb_x + 1 + (s->mb_y + 1) * wrap;
1379
    s->dc_val[1][xy] =
1380
    s->dc_val[2][xy] = 1024;
1381
    /* ac pred */
1382
    memset(s->ac_val[1][xy], 0, 16 * sizeof(INT16));
1383
    memset(s->ac_val[2][xy], 0, 16 * sizeof(INT16));
1384
    
1385
    s->mbintra_table[s->mb_x + s->mb_y*s->mb_width]= 0;
1386
}
1387

    
1388
/* generic function called after a macroblock has been parsed by the
1389
   decoder or after it has been encoded by the encoder.
1390

1391
   Important variables used:
1392
   s->mb_intra : true if intra macroblock
1393
   s->mv_dir   : motion vector direction
1394
   s->mv_type  : motion vector type
1395
   s->mv       : motion vector
1396
   s->interlaced_dct : true if interlaced dct used (mpeg2)
1397
 */
1398
void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
1399
{
1400
    int mb_x, mb_y;
1401
    const int mb_xy = s->mb_y * s->mb_width + s->mb_x;
1402

    
1403
    mb_x = s->mb_x;
1404
    mb_y = s->mb_y;
1405

    
1406
#ifdef FF_POSTPROCESS
1407
    /* Obsolete. Exists for compatibility with mplayer only. */
1408
    quant_store[mb_y][mb_x]=s->qscale;
1409
    //printf("[%02d][%02d] %d\n",mb_x,mb_y,s->qscale);
1410
#else
1411
    if(s->avctx->quant_store) s->avctx->quant_store[mb_y*s->avctx->qstride+mb_x] = s->qscale;
1412
#endif
1413

    
1414
    /* update DC predictors for P macroblocks */
1415
    if (!s->mb_intra) {
1416
        if (s->h263_pred || s->h263_aic) {
1417
            if(s->mbintra_table[mb_xy])
1418
                ff_clean_intra_table_entries(s);
1419
        } else {
1420
            s->last_dc[0] =
1421
            s->last_dc[1] =
1422
            s->last_dc[2] = 128 << s->intra_dc_precision;
1423
        }
1424
    }
1425
    else if (s->h263_pred || s->h263_aic)
1426
        s->mbintra_table[mb_xy]=1;
1427

    
1428
    /* update motion predictor, not for B-frames as they need the motion_val from the last P/S-Frame */
1429
    if (s->out_format == FMT_H263 && s->pict_type!=B_TYPE) { //FIXME move into h263.c if possible, format specific stuff shouldnt be here
1430
        int motion_x, motion_y;
1431
        
1432
        const int wrap = s->block_wrap[0];
1433
        const int xy = s->block_index[0];
1434
        if (s->mb_intra) {
1435
            motion_x = 0;
1436
            motion_y = 0;
1437
            goto motion_init;
1438
        } else if (s->mv_type == MV_TYPE_16X16) {
1439
            motion_x = s->mv[0][0][0];
1440
            motion_y = s->mv[0][0][1];
1441
        motion_init:
1442
            /* no update if 8X8 because it has been done during parsing */
1443
            s->motion_val[xy][0] = motion_x;
1444
            s->motion_val[xy][1] = motion_y;
1445
            s->motion_val[xy + 1][0] = motion_x;
1446
            s->motion_val[xy + 1][1] = motion_y;
1447
            s->motion_val[xy + wrap][0] = motion_x;
1448
            s->motion_val[xy + wrap][1] = motion_y;
1449
            s->motion_val[xy + 1 + wrap][0] = motion_x;
1450
            s->motion_val[xy + 1 + wrap][1] = motion_y;
1451
        }
1452
    }
1453
    
1454
    if (!(s->encoding && (s->intra_only || s->pict_type==B_TYPE))) {
1455
        UINT8 *dest_y, *dest_cb, *dest_cr;
1456
        int dct_linesize, dct_offset;
1457
        op_pixels_func *op_pix;
1458
        qpel_mc_func *op_qpix;
1459

    
1460
        /* avoid copy if macroblock skipped in last frame too 
1461
           dont touch it for B-frames as they need the skip info from the next p-frame */
1462
        if (s->pict_type != B_TYPE) {
1463
            UINT8 *mbskip_ptr = &s->mbskip_table[mb_xy];
1464
            if (s->mb_skiped) {
1465
                s->mb_skiped = 0;
1466

    
1467
                (*mbskip_ptr) ++; /* indicate that this time we skiped it */
1468
                if(*mbskip_ptr >99) *mbskip_ptr= 99;
1469

    
1470
                /* if previous was skipped too, then nothing to do ! 
1471
                   skip only during decoding as we might trash the buffers during encoding a bit */
1472
                if (*mbskip_ptr >= s->ip_buffer_count  && !s->encoding) 
1473
                    goto the_end;
1474
            } else {
1475
                *mbskip_ptr = 0; /* not skipped */
1476
            }
1477
        }
1478

    
1479
        dest_y = s->current_picture [0] + (mb_y * 16* s->linesize  ) + mb_x * 16;
1480
        dest_cb = s->current_picture[1] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
1481
        dest_cr = s->current_picture[2] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
1482

    
1483
        if (s->interlaced_dct) {
1484
            dct_linesize = s->linesize * 2;
1485
            dct_offset = s->linesize;
1486
        } else {
1487
            dct_linesize = s->linesize;
1488
            dct_offset = s->linesize * 8;
1489
        }
1490

    
1491
        if (!s->mb_intra) {
1492
            /* motion handling */
1493
            /* decoding or more than one mb_type (MC was allready done otherwise) */
1494
            if((!s->encoding) || (s->mb_type[mb_xy]&(s->mb_type[mb_xy]-1))){
1495
                if ((!s->no_rounding) || s->pict_type==B_TYPE){                
1496
                    op_pix = put_pixels_tab;
1497
                    op_qpix= qpel_mc_rnd_tab;
1498
                }else{
1499
                    op_pix = put_no_rnd_pixels_tab;
1500
                    op_qpix= qpel_mc_no_rnd_tab;
1501
                }
1502

    
1503
                if (s->mv_dir & MV_DIR_FORWARD) {
1504
                    MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture, op_pix, op_qpix);
1505
                    if ((!s->no_rounding) || s->pict_type==B_TYPE)
1506
                        op_pix = avg_pixels_tab;
1507
                    else
1508
                        op_pix = avg_no_rnd_pixels_tab;
1509
                }
1510
                if (s->mv_dir & MV_DIR_BACKWARD) {
1511
                    MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture, op_pix, op_qpix);
1512
                }
1513
            }
1514

    
1515
            /* skip dequant / idct if we are really late ;) */
1516
            if(s->hurry_up>1) goto the_end;
1517

    
1518
            /* add dct residue */
1519
            if(s->encoding || !(s->mpeg2 || s->h263_msmpeg4 || s->codec_id==CODEC_ID_MPEG4)){
1520
                add_dequant_dct(s, block[0], 0, dest_y, dct_linesize);
1521
                add_dequant_dct(s, block[1], 1, dest_y + 8, dct_linesize);
1522
                add_dequant_dct(s, block[2], 2, dest_y + dct_offset, dct_linesize);
1523
                add_dequant_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
1524

    
1525
                if(!(s->flags&CODEC_FLAG_GRAY)){
1526
                    add_dequant_dct(s, block[4], 4, dest_cb, s->uvlinesize);
1527
                    add_dequant_dct(s, block[5], 5, dest_cr, s->uvlinesize);
1528
                }
1529
            } else {
1530
                add_dct(s, block[0], 0, dest_y, dct_linesize);
1531
                add_dct(s, block[1], 1, dest_y + 8, dct_linesize);
1532
                add_dct(s, block[2], 2, dest_y + dct_offset, dct_linesize);
1533
                add_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
1534

    
1535
                if(!(s->flags&CODEC_FLAG_GRAY)){
1536
                    add_dct(s, block[4], 4, dest_cb, s->uvlinesize);
1537
                    add_dct(s, block[5], 5, dest_cr, s->uvlinesize);
1538
                }
1539
            }
1540
        } else {
1541
            /* dct only in intra block */
1542
            put_dct(s, block[0], 0, dest_y, dct_linesize);
1543
            put_dct(s, block[1], 1, dest_y + 8, dct_linesize);
1544
            put_dct(s, block[2], 2, dest_y + dct_offset, dct_linesize);
1545
            put_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
1546

    
1547
            if(!(s->flags&CODEC_FLAG_GRAY)){
1548
                put_dct(s, block[4], 4, dest_cb, s->uvlinesize);
1549
                put_dct(s, block[5], 5, dest_cr, s->uvlinesize);
1550
            }
1551
        }
1552
    }
1553
 the_end:
1554
    emms_c(); //FIXME remove
1555
}
1556

    
1557
static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold, int skip_dc)
1558
{
1559
    static const char tab[64]=
1560
        {3,2,2,1,1,1,1,1,
1561
         1,1,1,1,1,1,1,1,
1562
         1,1,1,1,1,1,1,1,
1563
         0,0,0,0,0,0,0,0,
1564
         0,0,0,0,0,0,0,0,
1565
         0,0,0,0,0,0,0,0,
1566
         0,0,0,0,0,0,0,0,
1567
         0,0,0,0,0,0,0,0};
1568
    int score=0;
1569
    int run=0;
1570
    int i;
1571
    DCTELEM *block= s->block[n];
1572
    const int last_index= s->block_last_index[n];
1573

    
1574
    if(skip_dc) skip_dc=1;
1575
    
1576
    /* are all which we could set to zero are allready zero? */
1577
    if(last_index<=skip_dc - 1) return;
1578

    
1579
    for(i=0; i<=last_index; i++){
1580
        const int j = zigzag_direct[i];
1581
        const int level = ABS(block[j]);
1582
        if(level==1){
1583
            if(skip_dc && i==0) continue;
1584
            score+= tab[run];
1585
            run=0;
1586
        }else if(level>1){
1587
            return;
1588
        }else{
1589
            run++;
1590
        }
1591
    }
1592
    if(score >= threshold) return;
1593
    for(i=skip_dc; i<=last_index; i++){
1594
        const int j = zigzag_direct[i];
1595
        block[j]=0;
1596
    }
1597
    if(block[0]) s->block_last_index[n]= 0;
1598
    else         s->block_last_index[n]= -1;
1599
}
1600

    
1601
static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1602
{
1603
    int i;
1604
    const int maxlevel= s->max_qcoeff;
1605
    const int minlevel= s->min_qcoeff;
1606
        
1607
    for(i=0;i<=last_index; i++){
1608
        const int j = zigzag_direct[i];
1609
        int level = block[j];
1610
       
1611
        if     (level>maxlevel) level=maxlevel;
1612
        else if(level<minlevel) level=minlevel;
1613
        block[j]= level;
1614
    }
1615
}
1616

    
1617
static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
1618
{
1619
    const int mb_x= s->mb_x;
1620
    const int mb_y= s->mb_y;
1621
    int i;
1622
    int skip_dct[6];
1623
#if 0
1624
        if (s->interlaced_dct) {
1625
            dct_linesize = s->linesize * 2;
1626
            dct_offset = s->linesize;
1627
        } else {
1628
            dct_linesize = s->linesize;
1629
            dct_offset = s->linesize * 8;
1630
        }
1631
#endif
1632
    for(i=0; i<6; i++) skip_dct[i]=0;
1633

    
1634
    if (s->mb_intra) {
1635
        UINT8 *ptr;
1636
        int wrap;
1637

    
1638
        wrap = s->linesize;
1639
        ptr = s->new_picture[0] + (mb_y * 16 * wrap) + mb_x * 16;
1640
        get_pixels(s->block[0], ptr               , wrap);
1641
        get_pixels(s->block[1], ptr            + 8, wrap);
1642
        get_pixels(s->block[2], ptr + 8 * wrap    , wrap);
1643
        get_pixels(s->block[3], ptr + 8 * wrap + 8, wrap);
1644

    
1645
        if(s->flags&CODEC_FLAG_GRAY){
1646
            skip_dct[4]= 1;
1647
            skip_dct[5]= 1;
1648
        }else{
1649
            wrap >>=1;
1650
            ptr = s->new_picture[1] + (mb_y * 8 * wrap) + mb_x * 8;
1651
            get_pixels(s->block[4], ptr, wrap);
1652

    
1653
            ptr = s->new_picture[2] + (mb_y * 8 * wrap) + mb_x * 8;
1654
            get_pixels(s->block[5], ptr, wrap);
1655
        }
1656
    }else{
1657
        op_pixels_func *op_pix;
1658
        qpel_mc_func *op_qpix;
1659
        UINT8 *dest_y, *dest_cb, *dest_cr;
1660
        UINT8 *ptr_y, *ptr_cb, *ptr_cr;
1661
        int wrap_y, wrap_c;
1662

    
1663
        dest_y  = s->current_picture[0] + (mb_y * 16 * s->linesize       ) + mb_x * 16;
1664
        dest_cb = s->current_picture[1] + (mb_y * 8  * (s->uvlinesize)) + mb_x * 8;
1665
        dest_cr = s->current_picture[2] + (mb_y * 8  * (s->uvlinesize)) + mb_x * 8;
1666
        wrap_y = s->linesize;
1667
        wrap_c = wrap_y>>1;
1668
        ptr_y  = s->new_picture[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
1669
        ptr_cb = s->new_picture[1] + (mb_y * 8 * wrap_c) + mb_x * 8;
1670
        ptr_cr = s->new_picture[2] + (mb_y * 8 * wrap_c) + mb_x * 8;
1671

    
1672
        if ((!s->no_rounding) || s->pict_type==B_TYPE){
1673
            op_pix = put_pixels_tab;
1674
            op_qpix= qpel_mc_rnd_tab;
1675
        }else{
1676
            op_pix = put_no_rnd_pixels_tab;
1677
            op_qpix= qpel_mc_no_rnd_tab;
1678
        }
1679

    
1680
        if (s->mv_dir & MV_DIR_FORWARD) {
1681
            MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture, op_pix, op_qpix);
1682
           if ((!s->no_rounding) || s->pict_type==B_TYPE)
1683
                op_pix = avg_pixels_tab;
1684
            else
1685
                op_pix = avg_no_rnd_pixels_tab;
1686
        }
1687
        if (s->mv_dir & MV_DIR_BACKWARD) {
1688
            MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture, op_pix, op_qpix);
1689
        }
1690

    
1691
        diff_pixels(s->block[0], ptr_y                 , dest_y                 , wrap_y);
1692
        diff_pixels(s->block[1], ptr_y              + 8, dest_y              + 8, wrap_y);
1693
        diff_pixels(s->block[2], ptr_y + 8 * wrap_y    , dest_y + 8 * wrap_y    , wrap_y);
1694
        diff_pixels(s->block[3], ptr_y + 8 * wrap_y + 8, dest_y + 8 * wrap_y + 8, wrap_y);
1695
        
1696
        if(s->flags&CODEC_FLAG_GRAY){
1697
            skip_dct[4]= 1;
1698
            skip_dct[5]= 1;
1699
        }else{
1700
            diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
1701
            diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
1702
        }
1703

    
1704
        /* pre quantization */         
1705
        if(s->mc_mb_var[s->mb_width*mb_y+ mb_x]<2*s->qscale*s->qscale){
1706
            if(pix_abs8x8(ptr_y               , dest_y               , wrap_y) < 20*s->qscale) skip_dct[0]= 1;
1707
            if(pix_abs8x8(ptr_y            + 8, dest_y            + 8, wrap_y) < 20*s->qscale) skip_dct[1]= 1;
1708
            if(pix_abs8x8(ptr_y + 8*wrap_y    , dest_y + 8*wrap_y    , wrap_y) < 20*s->qscale) skip_dct[2]= 1;
1709
            if(pix_abs8x8(ptr_y + 8*wrap_y + 8, dest_y + 8*wrap_y + 8, wrap_y) < 20*s->qscale) skip_dct[3]= 1;
1710
            if(pix_abs8x8(ptr_cb              , dest_cb              , wrap_y) < 20*s->qscale) skip_dct[4]= 1;
1711
            if(pix_abs8x8(ptr_cr              , dest_cr              , wrap_y) < 20*s->qscale) skip_dct[5]= 1;
1712
#if 0
1713
{
1714
 static int stat[7];
1715
 int num=0;
1716
 for(i=0; i<6; i++)
1717
  if(skip_dct[i]) num++;
1718
 stat[num]++;
1719
 
1720
 if(s->mb_x==0 && s->mb_y==0){
1721
  for(i=0; i<7; i++){
1722
   printf("%6d %1d\n", stat[i], i);
1723
  }
1724
 }
1725
}
1726
#endif
1727
        }
1728

    
1729
    }
1730
            
1731
#if 0
1732
            {
1733
                float adap_parm;
1734
                
1735
                adap_parm = ((s->avg_mb_var << 1) + s->mb_var[s->mb_width*mb_y+mb_x] + 1.0) /
1736
                            ((s->mb_var[s->mb_width*mb_y+mb_x] << 1) + s->avg_mb_var + 1.0);
1737
            
1738
                printf("\ntype=%c qscale=%2d adap=%0.2f dquant=%4.2f var=%4d avgvar=%4d", 
1739
                        (s->mb_type[s->mb_width*mb_y+mb_x] > 0) ? 'I' : 'P', 
1740
                        s->qscale, adap_parm, s->qscale*adap_parm,
1741
                        s->mb_var[s->mb_width*mb_y+mb_x], s->avg_mb_var);
1742
            }
1743
#endif
1744
    /* DCT & quantize */
1745
    if(s->out_format==FMT_MJPEG){
1746
        for(i=0;i<6;i++) {
1747
            int overflow;
1748
            s->block_last_index[i] = dct_quantize(s, s->block[i], i, 8, &overflow);
1749
            if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1750
        }
1751
    }else{
1752
        for(i=0;i<6;i++) {
1753
            if(!skip_dct[i]){
1754
                int overflow;
1755
                s->block_last_index[i] = dct_quantize(s, s->block[i], i, s->qscale, &overflow);
1756
            // FIXME we could decide to change to quantizer instead of clipping
1757
            // JS: I don't think that would be a good idea it could lower quality instead
1758
            //     of improve it. Just INTRADC clipping deserves changes in quantizer
1759
                if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1760
            }else
1761
                s->block_last_index[i]= -1;
1762
        }
1763
        if(s->luma_elim_threshold && !s->mb_intra)
1764
            for(i=0; i<4; i++)
1765
                dct_single_coeff_elimination(s, i, s->luma_elim_threshold, 0);
1766
        if(s->chroma_elim_threshold && !s->mb_intra)
1767
            for(i=4; i<6; i++)
1768
                dct_single_coeff_elimination(s, i, s->chroma_elim_threshold, 1);
1769
    }
1770

    
1771
    if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
1772
        s->block_last_index[4]=
1773
        s->block_last_index[5]= 0;
1774
        s->block[4][0]=
1775
        s->block[5][0]= 128;
1776
    }
1777

    
1778
    /* huffman encode */
1779
    switch(s->out_format) {
1780
    case FMT_MPEG1:
1781
        mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1782
        break;
1783
    case FMT_H263:
1784
        if (s->h263_msmpeg4)
1785
            msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1786
        else if(s->h263_pred)
1787
            mpeg4_encode_mb(s, s->block, motion_x, motion_y);
1788
        else
1789
            h263_encode_mb(s, s->block, motion_x, motion_y);
1790
        break;
1791
    case FMT_MJPEG:
1792
        mjpeg_encode_mb(s, s->block);
1793
        break;
1794
    }
1795
}
1796

    
1797
void ff_copy_bits(PutBitContext *pb, UINT8 *src, int length)
1798
{
1799
    int bytes= length>>4;
1800
    int bits= length&15;
1801
    int i;
1802

    
1803
    if(length==0) return;
1804

    
1805
    for(i=0; i<bytes; i++) put_bits(pb, 16, be2me_16(((uint16_t*)src)[i]));
1806
    put_bits(pb, bits, be2me_16(((uint16_t*)src)[i])>>(16-bits));
1807
}
1808

    
1809
static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1810
    int i;
1811

    
1812
    memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1813

    
1814
    /* mpeg1 */
1815
    d->mb_incr= s->mb_incr;
1816
    for(i=0; i<3; i++)
1817
        d->last_dc[i]= s->last_dc[i];
1818
    
1819
    /* statistics */
1820
    d->mv_bits= s->mv_bits;
1821
    d->i_tex_bits= s->i_tex_bits;
1822
    d->p_tex_bits= s->p_tex_bits;
1823
    d->i_count= s->i_count;
1824
    d->p_count= s->p_count;
1825
    d->skip_count= s->skip_count;
1826
    d->misc_bits= s->misc_bits;
1827
    d->last_bits= 0;
1828

    
1829
    d->mb_skiped= s->mb_skiped;
1830
}
1831

    
1832
static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1833
    int i;
1834

    
1835
    memcpy(d->mv, s->mv, 2*4*2*sizeof(int)); 
1836
    memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1837
    
1838
    /* mpeg1 */
1839
    d->mb_incr= s->mb_incr;
1840
    for(i=0; i<3; i++)
1841
        d->last_dc[i]= s->last_dc[i];
1842
    
1843
    /* statistics */
1844
    d->mv_bits= s->mv_bits;
1845
    d->i_tex_bits= s->i_tex_bits;
1846
    d->p_tex_bits= s->p_tex_bits;
1847
    d->i_count= s->i_count;
1848
    d->p_count= s->p_count;
1849
    d->skip_count= s->skip_count;
1850
    d->misc_bits= s->misc_bits;
1851

    
1852
    d->mb_intra= s->mb_intra;
1853
    d->mb_skiped= s->mb_skiped;
1854
    d->mv_type= s->mv_type;
1855
    d->mv_dir= s->mv_dir;
1856
    d->pb= s->pb;
1857
    if(s->data_partitioning){
1858
        d->pb2= s->pb2;
1859
        d->tex_pb= s->tex_pb;
1860
    }
1861
    d->block= s->block;
1862
    for(i=0; i<6; i++)
1863
        d->block_last_index[i]= s->block_last_index[i];
1864
}
1865

    
1866
static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type, 
1867
                           PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
1868
                           int *dmin, int *next_block, int motion_x, int motion_y)
1869
{
1870
    int bits_count;
1871
    
1872
    copy_context_before_encode(s, backup, type);
1873

    
1874
    s->block= s->blocks[*next_block];
1875
    s->pb= pb[*next_block];
1876
    if(s->data_partitioning){
1877
        s->pb2   = pb2   [*next_block];
1878
        s->tex_pb= tex_pb[*next_block];
1879
    }
1880

    
1881
    encode_mb(s, motion_x, motion_y);
1882

    
1883
    bits_count= get_bit_count(&s->pb);
1884
    if(s->data_partitioning){
1885
        bits_count+= get_bit_count(&s->pb2);
1886
        bits_count+= get_bit_count(&s->tex_pb);
1887
    }
1888

    
1889
    if(bits_count<*dmin){
1890
        *dmin= bits_count;
1891
        *next_block^=1;
1892

    
1893
        copy_context_after_encode(best, s, type);
1894
    }
1895
}
1896

    
1897
static void encode_picture(MpegEncContext *s, int picture_number)
1898
{
1899
    int mb_x, mb_y, last_gob, pdif = 0;
1900
    int i;
1901
    int bits;
1902
    MpegEncContext best_s, backup_s;
1903
    UINT8 bit_buf[2][3000];
1904
    UINT8 bit_buf2[2][3000];
1905
    UINT8 bit_buf_tex[2][3000];
1906
    PutBitContext pb[2], pb2[2], tex_pb[2];
1907

    
1908
    for(i=0; i<2; i++){
1909
        init_put_bits(&pb    [i], bit_buf    [i], 3000, NULL, NULL);
1910
        init_put_bits(&pb2   [i], bit_buf2   [i], 3000, NULL, NULL);
1911
        init_put_bits(&tex_pb[i], bit_buf_tex[i], 3000, NULL, NULL);
1912
    }
1913

    
1914
    s->picture_number = picture_number;
1915

    
1916
    s->block_wrap[0]=
1917
    s->block_wrap[1]=
1918
    s->block_wrap[2]=
1919
    s->block_wrap[3]= s->mb_width*2 + 2;
1920
    s->block_wrap[4]=
1921
    s->block_wrap[5]= s->mb_width + 2;
1922
    
1923
    /* Reset the average MB variance */
1924
    s->mb_var_sum = 0;
1925
    s->mc_mb_var_sum = 0;
1926

    
1927
    /* we need to initialize some time vars before we can encode b-frames */
1928
    if (s->h263_pred && !s->h263_msmpeg4)
1929
        ff_set_mpeg4_time(s, s->picture_number); 
1930

    
1931
    /* Estimate motion for every MB */
1932
    if(s->pict_type != I_TYPE){
1933
        for(mb_y=0; mb_y < s->mb_height; mb_y++) {
1934
            s->block_index[0]= s->block_wrap[0]*(mb_y*2 + 1) - 1;
1935
            s->block_index[1]= s->block_wrap[0]*(mb_y*2 + 1);
1936
            s->block_index[2]= s->block_wrap[0]*(mb_y*2 + 2) - 1;
1937
            s->block_index[3]= s->block_wrap[0]*(mb_y*2 + 2);
1938
            for(mb_x=0; mb_x < s->mb_width; mb_x++) {
1939
                s->mb_x = mb_x;
1940
                s->mb_y = mb_y;
1941
                s->block_index[0]+=2;
1942
                s->block_index[1]+=2;
1943
                s->block_index[2]+=2;
1944
                s->block_index[3]+=2;
1945

    
1946
                /* compute motion vector & mb_type and store in context */
1947
                if(s->pict_type==B_TYPE)
1948
                    ff_estimate_b_frame_motion(s, mb_x, mb_y);
1949
                else
1950
                    ff_estimate_p_frame_motion(s, mb_x, mb_y);
1951
//                s->mb_type[mb_y*s->mb_width + mb_x]=MB_TYPE_INTER;
1952
            }
1953
        }
1954
        emms_c();
1955
    }else /* if(s->pict_type == I_TYPE) */{
1956
        /* I-Frame */
1957
        //FIXME do we need to zero them?
1958
        memset(s->motion_val[0], 0, sizeof(INT16)*(s->mb_width*2 + 2)*(s->mb_height*2 + 2)*2);
1959
        memset(s->p_mv_table   , 0, sizeof(INT16)*(s->mb_width+2)*(s->mb_height+2)*2);
1960
        memset(s->mb_type      , MB_TYPE_INTRA, sizeof(UINT8)*s->mb_width*s->mb_height);
1961
    }
1962

    
1963
    if(s->mb_var_sum < s->mc_mb_var_sum && s->pict_type == P_TYPE){ //FIXME subtract MV bits
1964
        s->pict_type= I_TYPE;
1965
        memset(s->mb_type   , MB_TYPE_INTRA, sizeof(UINT8)*s->mb_width*s->mb_height);
1966
        if(s->max_b_frames==0){
1967
            s->input_pict_type= I_TYPE;
1968
            s->input_picture_in_gop_number=0;
1969
        }
1970
//printf("Scene change detected, encoding as I Frame\n");
1971
    }
1972
    
1973
    if(s->pict_type==P_TYPE || s->pict_type==S_TYPE) 
1974
        s->f_code= ff_get_best_fcode(s, s->p_mv_table, MB_TYPE_INTER);
1975
        ff_fix_long_p_mvs(s);
1976
    if(s->pict_type==B_TYPE){
1977
        s->f_code= ff_get_best_fcode(s, s->b_forw_mv_table, MB_TYPE_FORWARD);
1978
        s->b_code= ff_get_best_fcode(s, s->b_back_mv_table, MB_TYPE_BACKWARD);
1979

    
1980
        ff_fix_long_b_mvs(s, s->b_forw_mv_table, s->f_code, MB_TYPE_FORWARD);
1981
        ff_fix_long_b_mvs(s, s->b_back_mv_table, s->b_code, MB_TYPE_BACKWARD);
1982
        ff_fix_long_b_mvs(s, s->b_bidir_forw_mv_table, s->f_code, MB_TYPE_BIDIR);
1983
        ff_fix_long_b_mvs(s, s->b_bidir_back_mv_table, s->b_code, MB_TYPE_BIDIR);
1984
    }
1985
    
1986
//printf("f_code %d ///\n", s->f_code);
1987

    
1988
//    printf("%d %d\n", s->avg_mb_var, s->mc_mb_var);
1989

    
1990
    if(s->flags&CODEC_FLAG_PASS2)
1991
        s->qscale = ff_rate_estimate_qscale_pass2(s);
1992
    else if (!s->fixed_qscale) 
1993
        s->qscale = ff_rate_estimate_qscale(s);
1994

    
1995
    if (s->out_format == FMT_MJPEG) {
1996
        /* for mjpeg, we do include qscale in the matrix */
1997
        s->intra_matrix[0] = ff_mpeg1_default_intra_matrix[0];
1998
        for(i=1;i<64;i++)
1999
            s->intra_matrix[i] = CLAMP_TO_8BIT((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
2000
        convert_matrix(s->q_intra_matrix, s->q_intra_matrix16, 
2001
                       s->q_intra_matrix16_bias, s->intra_matrix, s->intra_quant_bias);
2002
    }
2003

    
2004
    s->last_bits= get_bit_count(&s->pb);
2005
    switch(s->out_format) {
2006
    case FMT_MJPEG:
2007
        mjpeg_picture_header(s);
2008
        break;
2009
    case FMT_H263:
2010
        if (s->h263_msmpeg4) 
2011
            msmpeg4_encode_picture_header(s, picture_number);
2012
        else if (s->h263_pred)
2013
            mpeg4_encode_picture_header(s, picture_number);
2014
        else if (s->h263_rv10) 
2015
            rv10_encode_picture_header(s, picture_number);
2016
        else
2017
            h263_encode_picture_header(s, picture_number);
2018
        break;
2019
    case FMT_MPEG1:
2020
        mpeg1_encode_picture_header(s, picture_number);
2021
        break;
2022
    }
2023
    bits= get_bit_count(&s->pb);
2024
    s->header_bits= bits - s->last_bits;
2025
    s->last_bits= bits;
2026
    s->mv_bits=0;
2027
    s->misc_bits=0;
2028
    s->i_tex_bits=0;
2029
    s->p_tex_bits=0;
2030
    s->i_count=0;
2031
    s->p_count=0;
2032
    s->skip_count=0;
2033

    
2034
    /* init last dc values */
2035
    /* note: quant matrix value (8) is implied here */
2036
    s->last_dc[0] = 128;
2037
    s->last_dc[1] = 128;
2038
    s->last_dc[2] = 128;
2039
    s->mb_incr = 1;
2040
    s->last_mv[0][0][0] = 0;
2041
    s->last_mv[0][0][1] = 0;
2042

    
2043
    /* Get the GOB height based on picture height */
2044
    if (s->out_format == FMT_H263 && !s->h263_pred && !s->h263_msmpeg4) {
2045
        if (s->height <= 400)
2046
            s->gob_index = 1;
2047
        else if (s->height <= 800)
2048
            s->gob_index = 2;
2049
        else
2050
            s->gob_index = 4;
2051
    }else if(s->codec_id==CODEC_ID_MPEG4){
2052
        s->gob_index = 1;
2053
    }
2054

    
2055
    if(s->codec_id==CODEC_ID_MPEG4 && s->data_partitioning && s->pict_type!=B_TYPE)
2056
        ff_mpeg4_init_partitions(s);
2057

    
2058
    s->resync_mb_x=0;
2059
    s->resync_mb_y=0;
2060
    for(mb_y=0; mb_y < s->mb_height; mb_y++) {
2061
        /* Put GOB header based on RTP MTU for formats which support it per line (H263*)*/
2062
        /* TODO: Put all this stuff in a separate generic function */
2063
        if (s->rtp_mode) {
2064
            if (!mb_y) {
2065
                s->ptr_lastgob = s->pb.buf;
2066
                s->ptr_last_mb_line = s->pb.buf;
2067
            } else if (s->out_format == FMT_H263 && !s->h263_pred && !s->h263_msmpeg4 && !(mb_y % s->gob_index)) {
2068
                // MN: we could move the space check from h263 -> here, as its not h263 specific
2069
                last_gob = h263_encode_gob_header(s, mb_y);
2070
                if (last_gob) {
2071
                    s->first_slice_line = 1;
2072
                }else{
2073
                    /*MN: we reset it here instead at the end of each line cuz mpeg4 can have 
2074
                          slice lines starting & ending in the middle*/
2075
                    s->first_slice_line = 0;
2076
                }
2077
            }
2078
        }
2079

    
2080
        s->y_dc_scale= s->y_dc_scale_table[ s->qscale ];
2081
        s->c_dc_scale= s->c_dc_scale_table[ s->qscale ];
2082
        
2083
        s->block_index[0]= s->block_wrap[0]*(mb_y*2 + 1) - 1;
2084
        s->block_index[1]= s->block_wrap[0]*(mb_y*2 + 1);
2085
        s->block_index[2]= s->block_wrap[0]*(mb_y*2 + 2) - 1;
2086
        s->block_index[3]= s->block_wrap[0]*(mb_y*2 + 2);
2087
        s->block_index[4]= s->block_wrap[4]*(mb_y + 1)                    + s->block_wrap[0]*(s->mb_height*2 + 2);
2088
        s->block_index[5]= s->block_wrap[4]*(mb_y + 1 + s->mb_height + 2) + s->block_wrap[0]*(s->mb_height*2 + 2);
2089
        for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2090
            const int mb_type= s->mb_type[mb_y * s->mb_width + mb_x];
2091
            const int xy= (mb_y+1) * (s->mb_width+2) + mb_x + 1;
2092
//            int d;
2093
            int dmin=10000000;
2094

    
2095
            s->mb_x = mb_x;
2096
            s->mb_y = mb_y;
2097
            s->block_index[0]+=2;
2098
            s->block_index[1]+=2;
2099
            s->block_index[2]+=2;
2100
            s->block_index[3]+=2;
2101
            s->block_index[4]++;
2102
            s->block_index[5]++;
2103
            
2104
            /* write gob / video packet header for formats which support it at any MB (MPEG4) */
2105
            if(s->rtp_mode && s->mb_y>0 && s->codec_id==CODEC_ID_MPEG4){
2106
                int pdif= pbBufPtr(&s->pb) - s->ptr_lastgob;
2107

    
2108
                //the *2 is there so we stay below the requested size
2109
                if(pdif + s->mb_line_avgsize/s->mb_width >= s->rtp_payload_size){ 
2110
                    if(s->codec_id==CODEC_ID_MPEG4){
2111
                        if(s->data_partitioning && s->pict_type!=B_TYPE){
2112
                            ff_mpeg4_merge_partitions(s);
2113
                            ff_mpeg4_init_partitions(s);
2114
                        }
2115
                        ff_mpeg4_encode_video_packet_header(s);
2116

    
2117
                        if(s->flags&CODEC_FLAG_PASS1){
2118
                            int bits= get_bit_count(&s->pb);
2119
                            s->misc_bits+= bits - s->last_bits;
2120
                            s->last_bits= bits;
2121
                        }
2122
                        ff_mpeg4_clean_buffers(s);
2123
                    }
2124
                    s->ptr_lastgob = pbBufPtr(&s->pb);
2125
                    s->first_slice_line=1;
2126
                    s->resync_mb_x=mb_x;
2127
                    s->resync_mb_y=mb_y;
2128
                }
2129

    
2130
                if(  (s->resync_mb_x   == s->mb_x)
2131
                   && s->resync_mb_y+1 == s->mb_y){
2132
                    s->first_slice_line=0; 
2133
                }
2134
            }
2135

    
2136
            if(mb_type & (mb_type-1)){ // more than 1 MB type possible
2137
                int next_block=0;
2138
                int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
2139

    
2140
                copy_context_before_encode(&backup_s, s, -1);
2141
                backup_s.pb= s->pb;
2142
                best_s.data_partitioning= s->data_partitioning;
2143
                if(s->data_partitioning){
2144
                    backup_s.pb2= s->pb2;
2145
                    backup_s.tex_pb= s->tex_pb;
2146
                }
2147

    
2148
                if(mb_type&MB_TYPE_INTER){
2149
                    s->mv_dir = MV_DIR_FORWARD;
2150
                    s->mv_type = MV_TYPE_16X16;
2151
                    s->mb_intra= 0;
2152
                    s->mv[0][0][0] = s->p_mv_table[xy][0];
2153
                    s->mv[0][0][1] = s->p_mv_table[xy][1];
2154
                    encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_INTER, pb, pb2, tex_pb, 
2155
                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2156
                }
2157
                if(mb_type&MB_TYPE_INTER4V){                 
2158
                    s->mv_dir = MV_DIR_FORWARD;
2159
                    s->mv_type = MV_TYPE_8X8;
2160
                    s->mb_intra= 0;
2161
                    for(i=0; i<4; i++){
2162
                        s->mv[0][i][0] = s->motion_val[s->block_index[i]][0];
2163
                        s->mv[0][i][1] = s->motion_val[s->block_index[i]][1];
2164
                    }
2165
                    encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_INTER4V, pb, pb2, tex_pb, 
2166
                                 &dmin, &next_block, 0, 0);
2167
                }
2168
                if(mb_type&MB_TYPE_FORWARD){
2169
                    s->mv_dir = MV_DIR_FORWARD;
2170
                    s->mv_type = MV_TYPE_16X16;
2171
                    s->mb_intra= 0;
2172
                    s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2173
                    s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2174
                    encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_FORWARD, pb, pb2, tex_pb, 
2175
                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2176
                }
2177
                if(mb_type&MB_TYPE_BACKWARD){
2178
                    s->mv_dir = MV_DIR_BACKWARD;
2179
                    s->mv_type = MV_TYPE_16X16;
2180
                    s->mb_intra= 0;
2181
                    s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2182
                    s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2183
                    encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_BACKWARD, pb, pb2, tex_pb, 
2184
                                 &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
2185
                }
2186
                if(mb_type&MB_TYPE_BIDIR){
2187
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2188
                    s->mv_type = MV_TYPE_16X16;
2189
                    s->mb_intra= 0;
2190
                    s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2191
                    s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2192
                    s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2193
                    s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2194
                    encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_BIDIR, pb, pb2, tex_pb, 
2195
                                 &dmin, &next_block, 0, 0);
2196
                }
2197
                if(mb_type&MB_TYPE_DIRECT){
2198
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2199
                    s->mv_type = MV_TYPE_16X16; //FIXME
2200
                    s->mb_intra= 0;
2201
                    s->mv[0][0][0] = s->b_direct_forw_mv_table[xy][0];
2202
                    s->mv[0][0][1] = s->b_direct_forw_mv_table[xy][1];
2203
                    s->mv[1][0][0] = s->b_direct_back_mv_table[xy][0];
2204
                    s->mv[1][0][1] = s->b_direct_back_mv_table[xy][1];
2205
                    encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_DIRECT, pb, pb2, tex_pb, 
2206
                                 &dmin, &next_block, s->b_direct_mv_table[xy][0], s->b_direct_mv_table[xy][1]);
2207
                }
2208
                if(mb_type&MB_TYPE_INTRA){
2209
                    s->mv_dir = MV_DIR_FORWARD;
2210
                    s->mv_type = MV_TYPE_16X16;
2211
                    s->mb_intra= 1;
2212
                    s->mv[0][0][0] = 0;
2213
                    s->mv[0][0][1] = 0;
2214
                    encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_INTRA, pb, pb2, tex_pb, 
2215
                                 &dmin, &next_block, 0, 0);
2216
                    /* force cleaning of ac/dc pred stuff if needed ... */
2217
                    if(s->h263_pred || s->h263_aic)
2218
                        s->mbintra_table[mb_x + mb_y*s->mb_width]=1;
2219
                }
2220
                copy_context_after_encode(s, &best_s, -1);
2221
                
2222
                pb_bits_count= get_bit_count(&s->pb);
2223
                flush_put_bits(&s->pb);
2224
                ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
2225
                s->pb= backup_s.pb;
2226
                
2227
                if(s->data_partitioning){
2228
                    pb2_bits_count= get_bit_count(&s->pb2);
2229
                    flush_put_bits(&s->pb2);
2230
                    ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
2231
                    s->pb2= backup_s.pb2;
2232
                    
2233
                    tex_pb_bits_count= get_bit_count(&s->tex_pb);
2234
                    flush_put_bits(&s->tex_pb);
2235
                    ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
2236
                    s->tex_pb= backup_s.tex_pb;
2237
                }
2238
                s->last_bits= get_bit_count(&s->pb);
2239
            } else {
2240
                int motion_x, motion_y;
2241
                s->mv_type=MV_TYPE_16X16;
2242
                // only one MB-Type possible
2243
                switch(mb_type){
2244
                case MB_TYPE_INTRA:
2245
                    s->mv_dir = MV_DIR_FORWARD;
2246
                    s->mb_intra= 1;
2247
                    motion_x= s->mv[0][0][0] = 0;
2248
                    motion_y= s->mv[0][0][1] = 0;
2249
                    break;
2250
                case MB_TYPE_INTER:
2251
                    s->mv_dir = MV_DIR_FORWARD;
2252
                    s->mb_intra= 0;
2253
                    motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
2254
                    motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
2255
                    break;
2256
                case MB_TYPE_INTER4V:
2257
                    s->mv_dir = MV_DIR_FORWARD;
2258
                    s->mv_type = MV_TYPE_8X8;
2259
                    s->mb_intra= 0;
2260
                    for(i=0; i<4; i++){
2261
                        s->mv[0][i][0] = s->motion_val[s->block_index[i]][0];
2262
                        s->mv[0][i][1] = s->motion_val[s->block_index[i]][1];
2263
                    }
2264
                    motion_x= motion_y= 0;
2265
                    break;
2266
                case MB_TYPE_DIRECT:
2267
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2268
                    s->mb_intra= 0;
2269
                    motion_x=s->b_direct_mv_table[xy][0];
2270
                    motion_y=s->b_direct_mv_table[xy][1];
2271
                    s->mv[0][0][0] = s->b_direct_forw_mv_table[xy][0];
2272
                    s->mv[0][0][1] = s->b_direct_forw_mv_table[xy][1];
2273
                    s->mv[1][0][0] = s->b_direct_back_mv_table[xy][0];
2274
                    s->mv[1][0][1] = s->b_direct_back_mv_table[xy][1];
2275
                    break;
2276
                case MB_TYPE_BIDIR:
2277
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2278
                    s->mb_intra= 0;
2279
                    motion_x=0;
2280
                    motion_y=0;
2281
                    s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2282
                    s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2283
                    s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2284
                    s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2285
                    break;
2286
                case MB_TYPE_BACKWARD:
2287
                    s->mv_dir = MV_DIR_BACKWARD;
2288
                    s->mb_intra= 0;
2289
                    motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2290
                    motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2291
                    break;
2292
                case MB_TYPE_FORWARD:
2293
                    s->mv_dir = MV_DIR_FORWARD;
2294
                    s->mb_intra= 0;
2295
                    motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2296
                    motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2297
//                    printf(" %d %d ", motion_x, motion_y);
2298
                    break;
2299
                default:
2300
                    motion_x=motion_y=0; //gcc warning fix
2301
                    printf("illegal MB type\n");
2302
                }
2303
                encode_mb(s, motion_x, motion_y);
2304
            }
2305
            /* clean the MV table in IPS frames for direct mode in B frames */
2306
            if(s->mb_intra /* && I,P,S_TYPE */){
2307
                s->p_mv_table[xy][0]=0;
2308
                s->p_mv_table[xy][1]=0;
2309
            }
2310

    
2311
            MPV_decode_mb(s, s->block);
2312
//printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_width, get_bit_count(&s->pb));
2313
        }
2314

    
2315

    
2316
        /* Obtain average GOB size for RTP */
2317
        if (s->rtp_mode) {
2318
            if (!mb_y)
2319
                s->mb_line_avgsize = pbBufPtr(&s->pb) - s->ptr_last_mb_line;
2320
            else if (!(mb_y % s->gob_index)) {    
2321
                s->mb_line_avgsize = (s->mb_line_avgsize + pbBufPtr(&s->pb) - s->ptr_last_mb_line) >> 1;
2322
                s->ptr_last_mb_line = pbBufPtr(&s->pb);
2323
            }
2324
            //fprintf(stderr, "\nMB line: %d\tSize: %u\tAvg. Size: %u", s->mb_y, 
2325
            //                    (s->pb.buf_ptr - s->ptr_last_mb_line), s->mb_line_avgsize);
2326
            if(s->codec_id!=CODEC_ID_MPEG4) s->first_slice_line = 0; //FIXME clean
2327
        }
2328
    }
2329
    emms_c();
2330

    
2331
    if(s->codec_id==CODEC_ID_MPEG4 && s->data_partitioning && s->pict_type!=B_TYPE)
2332
        ff_mpeg4_merge_partitions(s);
2333

    
2334
    if (s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == I_TYPE)
2335
        msmpeg4_encode_ext_header(s);
2336

    
2337
    if(s->codec_id==CODEC_ID_MPEG4) 
2338
        ff_mpeg4_stuffing(&s->pb);
2339

    
2340
    //if (s->gob_number)
2341
    //    fprintf(stderr,"\nNumber of GOB: %d", s->gob_number);
2342
    
2343
    /* Send the last GOB if RTP */    
2344
    if (s->rtp_mode) {
2345
        flush_put_bits(&s->pb);
2346
        pdif = pbBufPtr(&s->pb) - s->ptr_lastgob;
2347
        /* Call the RTP callback to send the last GOB */
2348
        if (s->rtp_callback)
2349
            s->rtp_callback(s->ptr_lastgob, pdif, s->gob_number);
2350
        s->ptr_lastgob = pbBufPtr(&s->pb);
2351
        //fprintf(stderr,"\nGOB: %2d size: %d (last)", s->gob_number, pdif);
2352
    }
2353
}
2354

    
2355
static int dct_quantize_c(MpegEncContext *s, 
2356
                        DCTELEM *block, int n,
2357
                        int qscale, int *overflow)
2358
{
2359
    int i, j, level, last_non_zero, q;
2360
    const int *qmat;
2361
    int bias;
2362
    int max=0;
2363
    unsigned int threshold1, threshold2;
2364
    
2365
    av_fdct (block);
2366

    
2367
    /* we need this permutation so that we correct the IDCT
2368
       permutation. will be moved into DCT code */
2369
    block_permute(block);
2370

    
2371
    if (s->mb_intra) {
2372
        if (!s->h263_aic) {
2373
            if (n < 4)
2374
                q = s->y_dc_scale;
2375
            else
2376
                q = s->c_dc_scale;
2377
            q = q << 3;
2378
        } else
2379
            /* For AIC we skip quant/dequant of INTRADC */
2380
            q = 1 << 3;
2381
            
2382
        /* note: block[0] is assumed to be positive */
2383
        block[0] = (block[0] + (q >> 1)) / q;
2384
        i = 1;
2385
        last_non_zero = 0;
2386
        qmat = s->q_intra_matrix[qscale];
2387
        bias= s->intra_quant_bias<<(QMAT_SHIFT - 3 - QUANT_BIAS_SHIFT);
2388
    } else {
2389
        i = 0;
2390
        last_non_zero = -1;
2391
        qmat = s->q_inter_matrix[qscale];
2392
        bias= s->inter_quant_bias<<(QMAT_SHIFT - 3 - QUANT_BIAS_SHIFT);
2393
    }
2394
    threshold1= (1<<(QMAT_SHIFT - 3)) - bias - 1;
2395
    threshold2= threshold1<<1;
2396

    
2397
    for(;i<64;i++) {
2398
        j = zigzag_direct[i];
2399
        level = block[j];
2400
        level = level * qmat[j];
2401

    
2402
//        if(   bias+level >= (1<<(QMAT_SHIFT - 3))
2403
//           || bias-level >= (1<<(QMAT_SHIFT - 3))){
2404
        if(((unsigned)(level+threshold1))>threshold2){
2405
            if(level>0){
2406
                level= (bias + level)>>(QMAT_SHIFT - 3);
2407
                block[j]= level;
2408
            }else{
2409
                level= (bias - level)>>(QMAT_SHIFT - 3);
2410
                block[j]= -level;
2411
            }
2412
            max |=level;
2413
            last_non_zero = i;
2414
        }else{
2415
            block[j]=0;
2416
        }
2417
    }
2418
    *overflow= s->max_qcoeff < max; //overflow might have happend
2419
    
2420
    return last_non_zero;
2421
}
2422

    
2423
static void dct_unquantize_mpeg1_c(MpegEncContext *s, 
2424
                                   DCTELEM *block, int n, int qscale)
2425
{
2426
    int i, level, nCoeffs;
2427
    const UINT16 *quant_matrix;
2428

    
2429
    if(s->alternate_scan) nCoeffs= 64;
2430
    else nCoeffs= s->block_last_index[n]+1;
2431
    
2432
    if (s->mb_intra) {
2433
        if (n < 4) 
2434
            block[0] = block[0] * s->y_dc_scale;
2435
        else
2436
            block[0] = block[0] * s->c_dc_scale;
2437
        /* XXX: only mpeg1 */
2438
        quant_matrix = s->intra_matrix;
2439
        for(i=1;i<nCoeffs;i++) {
2440
            int j= zigzag_direct[i];
2441
            level = block[j];
2442
            if (level) {
2443
                if (level < 0) {
2444
                    level = -level;
2445
                    level = (int)(level * qscale * quant_matrix[j]) >> 3;
2446
                    level = (level - 1) | 1;
2447
                    level = -level;
2448
                } else {
2449
                    level = (int)(level * qscale * quant_matrix[j]) >> 3;
2450
                    level = (level - 1) | 1;
2451
                }
2452
#ifdef PARANOID
2453
                if (level < -2048 || level > 2047)
2454
                    fprintf(stderr, "unquant error %d %d\n", i, level);
2455
#endif
2456
                block[j] = level;
2457
            }
2458
        }
2459
    } else {
2460
        i = 0;
2461
        quant_matrix = s->inter_matrix;
2462
        for(;i<nCoeffs;i++) {
2463
            int j= zigzag_direct[i];
2464
            level = block[j];
2465
            if (level) {
2466
                if (level < 0) {
2467
                    level = -level;
2468
                    level = (((level << 1) + 1) * qscale *
2469
                             ((int) (quant_matrix[j]))) >> 4;
2470
                    level = (level - 1) | 1;
2471
                    level = -level;
2472
                } else {
2473
                    level = (((level << 1) + 1) * qscale *
2474
                             ((int) (quant_matrix[j]))) >> 4;
2475
                    level = (level - 1) | 1;
2476
                }
2477
#ifdef PARANOID
2478
                if (level < -2048 || level > 2047)
2479
                    fprintf(stderr, "unquant error %d %d\n", i, level);
2480
#endif
2481
                block[j] = level;
2482
            }
2483
        }
2484
    }
2485
}
2486

    
2487
static void dct_unquantize_mpeg2_c(MpegEncContext *s, 
2488
                                   DCTELEM *block, int n, int qscale)
2489
{
2490
    int i, level, nCoeffs;
2491
    const UINT16 *quant_matrix;
2492

    
2493
    if(s->alternate_scan) nCoeffs= 64;
2494
    else nCoeffs= s->block_last_index[n]+1;
2495
    
2496
    if (s->mb_intra) {
2497
        if (n < 4) 
2498
            block[0] = block[0] * s->y_dc_scale;
2499
        else
2500
            block[0] = block[0] * s->c_dc_scale;
2501
        quant_matrix = s->intra_matrix;
2502
        for(i=1;i<nCoeffs;i++) {
2503
            int j= zigzag_direct[i];
2504
            level = block[j];
2505
            if (level) {
2506
                if (level < 0) {
2507
                    level = -level;
2508
                    level = (int)(level * qscale * quant_matrix[j]) >> 3;
2509
                    level = -level;
2510
                } else {
2511
                    level = (int)(level * qscale * quant_matrix[j]) >> 3;
2512
                }
2513
#ifdef PARANOID
2514
                if (level < -2048 || level > 2047)
2515
                    fprintf(stderr, "unquant error %d %d\n", i, level);
2516
#endif
2517
                block[j] = level;
2518
            }
2519
        }
2520
    } else {
2521
        int sum=-1;
2522
        i = 0;
2523
        quant_matrix = s->inter_matrix;
2524
        for(;i<nCoeffs;i++) {
2525
            int j= zigzag_direct[i];
2526
            level = block[j];
2527
            if (level) {
2528
                if (level < 0) {
2529
                    level = -level;
2530
                    level = (((level << 1) + 1) * qscale *
2531
                             ((int) (quant_matrix[j]))) >> 4;
2532
                    level = -level;
2533
                } else {
2534
                    level = (((level << 1) + 1) * qscale *
2535
                             ((int) (quant_matrix[j]))) >> 4;
2536
                }
2537
#ifdef PARANOID
2538
                if (level < -2048 || level > 2047)
2539
                    fprintf(stderr, "unquant error %d %d\n", i, level);
2540
#endif
2541
                block[j] = level;
2542
                sum+=level;
2543
            }
2544
        }
2545
        block[63]^=sum&1;
2546
    }
2547
}
2548

    
2549

    
2550
static void dct_unquantize_h263_c(MpegEncContext *s, 
2551
                                  DCTELEM *block, int n, int qscale)
2552
{
2553
    int i, level, qmul, qadd;
2554
    int nCoeffs;
2555
    
2556
    if (s->mb_intra) {
2557
        if (!s->h263_aic) {
2558
            if (n < 4) 
2559
                block[0] = block[0] * s->y_dc_scale;
2560
            else
2561
                block[0] = block[0] * s->c_dc_scale;
2562
        }
2563
        i = 1;
2564
        nCoeffs= 64; //does not allways use zigzag table 
2565
    } else {
2566
        i = 0;
2567
        nCoeffs= zigzag_end[ s->block_last_index[n] ];
2568
    }
2569

    
2570
    qmul = s->qscale << 1;
2571
    if (s->h263_aic && s->mb_intra)
2572
        qadd = 0;
2573
    else
2574
        qadd = (s->qscale - 1) | 1;
2575

    
2576
    for(;i<nCoeffs;i++) {
2577
        level = block[i];
2578
        if (level) {
2579
            if (level < 0) {
2580
                level = level * qmul - qadd;
2581
            } else {
2582
                level = level * qmul + qadd;
2583
            }
2584
#ifdef PARANOID
2585
                if (level < -2048 || level > 2047)
2586
                    fprintf(stderr, "unquant error %d %d\n", i, level);
2587
#endif
2588
            block[i] = level;
2589
        }
2590
    }
2591
}
2592

    
2593
static void remove_ac(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int mb_x, int mb_y)
2594
{
2595
    int dc, dcb, dcr, y, i;
2596
    for(i=0; i<4; i++){
2597
        dc= s->dc_val[0][mb_x*2+1 + (i&1) + (mb_y*2+1 + (i>>1))*(s->mb_width*2+2)];
2598
        for(y=0; y<8; y++){
2599
            int x;
2600
            for(x=0; x<8; x++){
2601
                dest_y[x + (i&1)*8 + (y + (i>>1)*8)*s->linesize]= dc/8;
2602
            }
2603
        }
2604
    }
2605
    dcb = s->dc_val[1][mb_x+1 + (mb_y+1)*(s->mb_width+2)];
2606
    dcr= s->dc_val[2][mb_x+1 + (mb_y+1)*(s->mb_width+2)];
2607
    for(y=0; y<8; y++){
2608
        int x;
2609
        for(x=0; x<8; x++){
2610
            dest_cb[x + y*(s->uvlinesize)]= dcb/8;
2611
            dest_cr[x + y*(s->uvlinesize)]= dcr/8;
2612
        }
2613
    }
2614
}
2615

    
2616
/**
2617
 * will conceal past errors, and allso drop b frames if needed
2618
 *
2619
 */
2620
void ff_conceal_past_errors(MpegEncContext *s, int unknown_pos)
2621
{
2622
    int mb_x= s->mb_x;
2623
    int mb_y= s->mb_y;
2624
    int mb_dist=0;
2625
    int i, intra_count=0, inter_count=0;
2626
    int intra_conceal= s->msmpeg4_version ? 50 : 50; //FIXME finetune
2627
    int inter_conceal= s->msmpeg4_version ? 50 : 50;
2628
    
2629
    // for last block
2630
    if(mb_x>=s->mb_width)  mb_x= s->mb_width -1;
2631
    if(mb_y>=s->mb_height) mb_y= s->mb_height-1;
2632

    
2633
    if(s->decoding_error==0 && unknown_pos){
2634
        if(s->data_partitioning && s->pict_type!=B_TYPE)
2635
                s->decoding_error= DECODING_AC_LOST;
2636
        else
2637
                s->decoding_error= DECODING_DESYNC;
2638
    }
2639

    
2640
    if(s->decoding_error==DECODING_DESYNC && s->pict_type!=B_TYPE) s->next_p_frame_damaged=1;
2641

    
2642
    for(i=mb_x + mb_y*s->mb_width; i>=0; i--){
2643
        if(s->mbintra_table[i]) intra_count++;
2644
        else                    inter_count++;
2645
    }
2646
    
2647
    if(s->decoding_error==DECODING_AC_LOST){
2648
        intra_conceal*=2;
2649
        inter_conceal*=2;
2650
    }else if(s->decoding_error==DECODING_ACDC_LOST){
2651
        intra_conceal*=2;
2652
        inter_conceal*=2;
2653
    }
2654

    
2655
    if(unknown_pos && (intra_count<inter_count)){
2656
        intra_conceal= inter_conceal= s->mb_num; 
2657
//        printf("%d %d\n",intra_count, inter_count);
2658
    }
2659

    
2660
    fprintf(stderr, "concealing errors\n");
2661

    
2662
    /* for all MBs from the current one back until the last resync marker */
2663
    for(; mb_y>=0 && mb_y>=s->resync_mb_y; mb_y--){
2664
        for(; mb_x>=0; mb_x--){
2665
            uint8_t *dest_y  = s->current_picture[0] + (mb_y * 16*  s->linesize      ) + mb_x * 16;
2666
            uint8_t *dest_cb = s->current_picture[1] + (mb_y * 8 * (s->uvlinesize)) + mb_x * 8;
2667
            uint8_t *dest_cr = s->current_picture[2] + (mb_y * 8 * (s->uvlinesize)) + mb_x * 8;
2668
            int mb_x_backup= s->mb_x; //FIXME pass xy to mpeg_motion
2669
            int mb_y_backup= s->mb_y;
2670
            s->mb_x=mb_x;
2671
            s->mb_y=mb_y;
2672
            if(s->mbintra_table[mb_y*s->mb_width + mb_x] && mb_dist<intra_conceal){
2673
                if(s->decoding_error==DECODING_AC_LOST){
2674
                    remove_ac(s, dest_y, dest_cb, dest_cr, mb_x, mb_y);
2675
//                    printf("remove ac to %d %d\n", mb_x, mb_y);
2676
                }else{
2677
                    mpeg_motion(s, dest_y, dest_cb, dest_cr, 0, 
2678
                                s->last_picture, 0, 0, put_pixels_tab,
2679
                                0/*mx*/, 0/*my*/, 16);
2680
                }
2681
            }
2682
            else if(!s->mbintra_table[mb_y*s->mb_width + mb_x] && mb_dist<inter_conceal){
2683
                int mx=0;
2684
                int my=0;
2685

    
2686
                if(s->decoding_error!=DECODING_DESYNC){
2687
                    int xy= mb_x*2+1 + (mb_y*2+1)*(s->mb_width*2+2);
2688
                    mx= s->motion_val[ xy ][0];
2689
                    my= s->motion_val[ xy ][1];
2690
                }
2691

    
2692
                mpeg_motion(s, dest_y, dest_cb, dest_cr, 0, 
2693
                            s->last_picture, 0, 0, put_pixels_tab,
2694
                            mx, my, 16);
2695
            }
2696
            s->mb_x= mb_x_backup;
2697
            s->mb_y= mb_y_backup;
2698

    
2699
            if(mb_x== s->resync_mb_x && mb_y== s->resync_mb_y) return;
2700
            if(!s->mbskip_table[mb_x + mb_y*s->mb_width]) mb_dist++;
2701
        }
2702
        mb_x=s->mb_width-1;
2703
    }
2704
}
2705

    
2706
AVCodec mpeg1video_encoder = {
2707
    "mpeg1video",
2708
    CODEC_TYPE_VIDEO,
2709
    CODEC_ID_MPEG1VIDEO,
2710
    sizeof(MpegEncContext),
2711
    MPV_encode_init,
2712
    MPV_encode_picture,
2713
    MPV_encode_end,
2714
};
2715

    
2716
AVCodec h263_encoder = {
2717
    "h263",
2718
    CODEC_TYPE_VIDEO,
2719
    CODEC_ID_H263,
2720
    sizeof(MpegEncContext),
2721
    MPV_encode_init,
2722
    MPV_encode_picture,
2723
    MPV_encode_end,
2724
};
2725

    
2726
AVCodec h263p_encoder = {
2727
    "h263p",
2728
    CODEC_TYPE_VIDEO,
2729
    CODEC_ID_H263P,
2730
    sizeof(MpegEncContext),
2731
    MPV_encode_init,
2732
    MPV_encode_picture,
2733
    MPV_encode_end,
2734
};
2735

    
2736
AVCodec rv10_encoder = {
2737
    "rv10",
2738
    CODEC_TYPE_VIDEO,
2739
    CODEC_ID_RV10,
2740
    sizeof(MpegEncContext),
2741
    MPV_encode_init,
2742
    MPV_encode_picture,
2743
    MPV_encode_end,
2744
};
2745

    
2746
AVCodec mjpeg_encoder = {
2747
    "mjpeg",
2748
    CODEC_TYPE_VIDEO,
2749
    CODEC_ID_MJPEG,
2750
    sizeof(MpegEncContext),
2751
    MPV_encode_init,
2752
    MPV_encode_picture,
2753
    MPV_encode_end,
2754
};
2755

    
2756
AVCodec mpeg4_encoder = {
2757
    "mpeg4",
2758
    CODEC_TYPE_VIDEO,
2759
    CODEC_ID_MPEG4,
2760
    sizeof(MpegEncContext),
2761
    MPV_encode_init,
2762
    MPV_encode_picture,
2763
    MPV_encode_end,
2764
};
2765

    
2766
AVCodec msmpeg4v1_encoder = {
2767
    "msmpeg4v1",
2768
    CODEC_TYPE_VIDEO,
2769
    CODEC_ID_MSMPEG4V1,
2770
    sizeof(MpegEncContext),
2771
    MPV_encode_init,
2772
    MPV_encode_picture,
2773
    MPV_encode_end,
2774
};
2775

    
2776
AVCodec msmpeg4v2_encoder = {
2777
    "msmpeg4v2",
2778
    CODEC_TYPE_VIDEO,
2779
    CODEC_ID_MSMPEG4V2,
2780
    sizeof(MpegEncContext),
2781
    MPV_encode_init,
2782
    MPV_encode_picture,
2783
    MPV_encode_end,
2784
};
2785

    
2786
AVCodec msmpeg4v3_encoder = {
2787
    "msmpeg4",
2788
    CODEC_TYPE_VIDEO,
2789
    CODEC_ID_MSMPEG4V3,
2790
    sizeof(MpegEncContext),
2791
    MPV_encode_init,
2792
    MPV_encode_picture,
2793
    MPV_encode_end,
2794
};
2795

    
2796
AVCodec wmv1_encoder = {
2797
    "wmv1",
2798
    CODEC_TYPE_VIDEO,
2799
    CODEC_ID_WMV1,
2800
    sizeof(MpegEncContext),
2801
    MPV_encode_init,
2802
    MPV_encode_picture,
2803
    MPV_encode_end,
2804
};
2805

    
2806
AVCodec wmv2_encoder = {
2807
    "wmv2",
2808
    CODEC_TYPE_VIDEO,
2809
    CODEC_ID_WMV2,
2810
    sizeof(MpegEncContext),
2811
    MPV_encode_init,
2812
    MPV_encode_picture,
2813
    MPV_encode_end,
2814
};