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ffmpeg / libavcodec / mpegvideo_enc.c @ ce5e49b0

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1
/*
2
 * The simplest mpeg encoder (well, it was the simplest!)
3
 * Copyright (c) 2000,2001 Fabrice Bellard
4
 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5
 *
6
 * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
7
 *
8
 * This file is part of FFmpeg.
9
 *
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 * FFmpeg is free software; you can redistribute it and/or
11
 * modify it under the terms of the GNU Lesser General Public
12
 * License as published by the Free Software Foundation; either
13
 * version 2.1 of the License, or (at your option) any later version.
14
 *
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 * FFmpeg is distributed in the hope that it will be useful,
16
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
18
 * Lesser General Public License for more details.
19
 *
20
 * You should have received a copy of the GNU Lesser General Public
21
 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23
 */
24

    
25
/**
26
 * @file
27
 * The simplest mpeg encoder (well, it was the simplest!).
28
 */
29

    
30
#include "libavutil/intmath.h"
31
#include "avcodec.h"
32
#include "dsputil.h"
33
#include "mpegvideo.h"
34
#include "mpegvideo_common.h"
35
#include "h263.h"
36
#include "mjpegenc.h"
37
#include "msmpeg4.h"
38
#include "faandct.h"
39
#include "thread.h"
40
#include "aandcttab.h"
41
#include "flv.h"
42
#include "mpeg4video.h"
43
#include "internal.h"
44
#include <limits.h>
45

    
46
//#undef NDEBUG
47
//#include <assert.h>
48

    
49
static int encode_picture(MpegEncContext *s, int picture_number);
50
static int dct_quantize_refine(MpegEncContext *s, DCTELEM *block, int16_t *weight, DCTELEM *orig, int n, int qscale);
51
static int sse_mb(MpegEncContext *s);
52
static void denoise_dct_c(MpegEncContext *s, DCTELEM *block);
53
static int dct_quantize_trellis_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
54

    
55
/* enable all paranoid tests for rounding, overflows, etc... */
56
//#define PARANOID
57

    
58
//#define DEBUG
59

    
60
static uint8_t default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
61
static uint8_t default_fcode_tab[MAX_MV*2+1];
62

    
63
void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
64
                           const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra)
65
{
66
    int qscale;
67
    int shift=0;
68

    
69
    for(qscale=qmin; qscale<=qmax; qscale++){
70
        int i;
71
        if (dsp->fdct == ff_jpeg_fdct_islow
72
#ifdef FAAN_POSTSCALE
73
            || dsp->fdct == ff_faandct
74
#endif
75
            ) {
76
            for(i=0;i<64;i++) {
77
                const int j= dsp->idct_permutation[i];
78
                /* 16 <= qscale * quant_matrix[i] <= 7905 */
79
                /* 19952             <= ff_aanscales[i] * qscale * quant_matrix[i]               <= 249205026 */
80
                /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1 << 36) / 249205026 */
81
                /* 3444240           >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
82

    
83
                qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) /
84
                                (qscale * quant_matrix[j]));
85
            }
86
        } else if (dsp->fdct == fdct_ifast
87
#ifndef FAAN_POSTSCALE
88
                   || dsp->fdct == ff_faandct
89
#endif
90
                   ) {
91
            for(i=0;i<64;i++) {
92
                const int j= dsp->idct_permutation[i];
93
                /* 16 <= qscale * quant_matrix[i] <= 7905 */
94
                /* 19952             <= ff_aanscales[i] * qscale * quant_matrix[i]               <= 249205026 */
95
                /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
96
                /* 3444240           >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
97

    
98
                qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) /
99
                                (ff_aanscales[i] * qscale * quant_matrix[j]));
100
            }
101
        } else {
102
            for(i=0;i<64;i++) {
103
                const int j= dsp->idct_permutation[i];
104
                /* We can safely suppose that 16 <= quant_matrix[i] <= 255
105
                   So 16           <= qscale * quant_matrix[i]             <= 7905
106
                   so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
107
                   so 32768        >= (1<<19) / (qscale * quant_matrix[i]) >= 67
108
                */
109
                qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / (qscale * quant_matrix[j]));
110
//                qmat  [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
111
                qmat16[qscale][0][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[j]);
112

    
113
                if(qmat16[qscale][0][i]==0 || qmat16[qscale][0][i]==128*256) qmat16[qscale][0][i]=128*256-1;
114
                qmat16[qscale][1][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][0][i]);
115
            }
116
        }
117

    
118
        for(i=intra; i<64; i++){
119
            int64_t max= 8191;
120
            if (dsp->fdct == fdct_ifast
121
#ifndef FAAN_POSTSCALE
122
                   || dsp->fdct == ff_faandct
123
#endif
124
                   ) {
125
                max = (8191LL*ff_aanscales[i]) >> 14;
126
            }
127
            while(((max * qmat[qscale][i]) >> shift) > INT_MAX){
128
                shift++;
129
            }
130
        }
131
    }
132
    if(shift){
133
        av_log(NULL, AV_LOG_INFO, "Warning, QMAT_SHIFT is larger than %d, overflows possible\n", QMAT_SHIFT - shift);
134
    }
135
}
136

    
137
static inline void update_qscale(MpegEncContext *s){
138
    s->qscale= (s->lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
139
    s->qscale= av_clip(s->qscale, s->avctx->qmin, s->avctx->qmax);
140

    
141
    s->lambda2= (s->lambda*s->lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
142
}
143

    
144
void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix){
145
    int i;
146

    
147
    if(matrix){
148
        put_bits(pb, 1, 1);
149
        for(i=0;i<64;i++) {
150
            put_bits(pb, 8, matrix[ ff_zigzag_direct[i] ]);
151
        }
152
    }else
153
        put_bits(pb, 1, 0);
154
}
155

    
156
/**
157
 * init s->current_picture.qscale_table from s->lambda_table
158
 */
159
void ff_init_qscale_tab(MpegEncContext *s){
160
    int8_t * const qscale_table= s->current_picture.qscale_table;
161
    int i;
162

    
163
    for(i=0; i<s->mb_num; i++){
164
        unsigned int lam= s->lambda_table[ s->mb_index2xy[i] ];
165
        int qp= (lam*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
166
        qscale_table[ s->mb_index2xy[i] ]= av_clip(qp, s->avctx->qmin, s->avctx->qmax);
167
    }
168
}
169

    
170
static void copy_picture_attributes(MpegEncContext *s, AVFrame *dst, AVFrame *src){
171
    int i;
172

    
173
    dst->pict_type              = src->pict_type;
174
    dst->quality                = src->quality;
175
    dst->coded_picture_number   = src->coded_picture_number;
176
    dst->display_picture_number = src->display_picture_number;
177
//    dst->reference              = src->reference;
178
    dst->pts                    = src->pts;
179
    dst->interlaced_frame       = src->interlaced_frame;
180
    dst->top_field_first        = src->top_field_first;
181

    
182
    if(s->avctx->me_threshold){
183
        if(!src->motion_val[0])
184
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_val not set!\n");
185
        if(!src->mb_type)
186
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.mb_type not set!\n");
187
        if(!src->ref_index[0])
188
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.ref_index not set!\n");
189
        if(src->motion_subsample_log2 != dst->motion_subsample_log2)
190
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_subsample_log2 doesn't match! (%d!=%d)\n",
191
            src->motion_subsample_log2, dst->motion_subsample_log2);
192

    
193
        memcpy(dst->mb_type, src->mb_type, s->mb_stride * s->mb_height * sizeof(dst->mb_type[0]));
194

    
195
        for(i=0; i<2; i++){
196
            int stride= ((16*s->mb_width )>>src->motion_subsample_log2) + 1;
197
            int height= ((16*s->mb_height)>>src->motion_subsample_log2);
198

    
199
            if(src->motion_val[i] && src->motion_val[i] != dst->motion_val[i]){
200
                memcpy(dst->motion_val[i], src->motion_val[i], 2*stride*height*sizeof(int16_t));
201
            }
202
            if(src->ref_index[i] && src->ref_index[i] != dst->ref_index[i]){
203
                memcpy(dst->ref_index[i], src->ref_index[i], s->mb_stride*4*s->mb_height*sizeof(int8_t));
204
            }
205
        }
206
    }
207
}
208

    
209
static void update_duplicate_context_after_me(MpegEncContext *dst, MpegEncContext *src){
210
#define COPY(a) dst->a= src->a
211
    COPY(pict_type);
212
    COPY(current_picture);
213
    COPY(f_code);
214
    COPY(b_code);
215
    COPY(qscale);
216
    COPY(lambda);
217
    COPY(lambda2);
218
    COPY(picture_in_gop_number);
219
    COPY(gop_picture_number);
220
    COPY(frame_pred_frame_dct); //FIXME don't set in encode_header
221
    COPY(progressive_frame); //FIXME don't set in encode_header
222
    COPY(partitioned_frame); //FIXME don't set in encode_header
223
#undef COPY
224
}
225

    
226
/**
227
 * sets the given MpegEncContext to defaults for encoding.
228
 * the changed fields will not depend upon the prior state of the MpegEncContext.
229
 */
230
static void MPV_encode_defaults(MpegEncContext *s){
231
    int i;
232
    MPV_common_defaults(s);
233

    
234
    for(i=-16; i<16; i++){
235
        default_fcode_tab[i + MAX_MV]= 1;
236
    }
237
    s->me.mv_penalty= default_mv_penalty;
238
    s->fcode_tab= default_fcode_tab;
239
}
240

    
241
/* init video encoder */
242
av_cold int MPV_encode_init(AVCodecContext *avctx)
243
{
244
    MpegEncContext *s = avctx->priv_data;
245
    int i;
246
    int chroma_h_shift, chroma_v_shift;
247

    
248
    MPV_encode_defaults(s);
249

    
250
    switch (avctx->codec_id) {
251
    case CODEC_ID_MPEG2VIDEO:
252
        if(avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P){
253
            av_log(avctx, AV_LOG_ERROR, "only YUV420 and YUV422 are supported\n");
254
            return -1;
255
        }
256
        break;
257
    case CODEC_ID_LJPEG:
258
        if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P && avctx->pix_fmt != PIX_FMT_YUVJ444P && avctx->pix_fmt != PIX_FMT_BGRA &&
259
           ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P && avctx->pix_fmt != PIX_FMT_YUV444P) || avctx->strict_std_compliance>FF_COMPLIANCE_UNOFFICIAL)){
260
            av_log(avctx, AV_LOG_ERROR, "colorspace not supported in LJPEG\n");
261
            return -1;
262
        }
263
        break;
264
    case CODEC_ID_MJPEG:
265
        if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P &&
266
           ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P) || avctx->strict_std_compliance>FF_COMPLIANCE_UNOFFICIAL)){
267
            av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n");
268
            return -1;
269
        }
270
        break;
271
    default:
272
        if(avctx->pix_fmt != PIX_FMT_YUV420P){
273
            av_log(avctx, AV_LOG_ERROR, "only YUV420 is supported\n");
274
            return -1;
275
        }
276
    }
277

    
278
    switch (avctx->pix_fmt) {
279
    case PIX_FMT_YUVJ422P:
280
    case PIX_FMT_YUV422P:
281
        s->chroma_format = CHROMA_422;
282
        break;
283
    case PIX_FMT_YUVJ420P:
284
    case PIX_FMT_YUV420P:
285
    default:
286
        s->chroma_format = CHROMA_420;
287
        break;
288
    }
289

    
290
    s->bit_rate = avctx->bit_rate;
291
    s->width = avctx->width;
292
    s->height = avctx->height;
293
    if(avctx->gop_size > 600 && avctx->strict_std_compliance>FF_COMPLIANCE_EXPERIMENTAL){
294
        av_log(avctx, AV_LOG_ERROR, "Warning keyframe interval too large! reducing it ...\n");
295
        avctx->gop_size=600;
296
    }
297
    s->gop_size = avctx->gop_size;
298
    s->avctx = avctx;
299
    s->flags= avctx->flags;
300
    s->flags2= avctx->flags2;
301
    s->max_b_frames= avctx->max_b_frames;
302
    s->codec_id= avctx->codec->id;
303
    s->luma_elim_threshold  = avctx->luma_elim_threshold;
304
    s->chroma_elim_threshold= avctx->chroma_elim_threshold;
305
    s->strict_std_compliance= avctx->strict_std_compliance;
306
    s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
307
    s->quarter_sample= (avctx->flags & CODEC_FLAG_QPEL)!=0;
308
    s->mpeg_quant= avctx->mpeg_quant;
309
    s->rtp_mode= !!avctx->rtp_payload_size;
310
    s->intra_dc_precision= avctx->intra_dc_precision;
311
    s->user_specified_pts = AV_NOPTS_VALUE;
312

    
313
    if (s->gop_size <= 1) {
314
        s->intra_only = 1;
315
        s->gop_size = 12;
316
    } else {
317
        s->intra_only = 0;
318
    }
319

    
320
    s->me_method = avctx->me_method;
321

    
322
    /* Fixed QSCALE */
323
    s->fixed_qscale = !!(avctx->flags & CODEC_FLAG_QSCALE);
324

    
325
    s->adaptive_quant= (   s->avctx->lumi_masking
326
                        || s->avctx->dark_masking
327
                        || s->avctx->temporal_cplx_masking
328
                        || s->avctx->spatial_cplx_masking
329
                        || s->avctx->p_masking
330
                        || s->avctx->border_masking
331
                        || (s->flags&CODEC_FLAG_QP_RD))
332
                       && !s->fixed_qscale;
333

    
334
    s->obmc= !!(s->flags & CODEC_FLAG_OBMC);
335
    s->loop_filter= !!(s->flags & CODEC_FLAG_LOOP_FILTER);
336
    s->alternate_scan= !!(s->flags & CODEC_FLAG_ALT_SCAN);
337
    s->intra_vlc_format= !!(s->flags2 & CODEC_FLAG2_INTRA_VLC);
338
    s->q_scale_type= !!(s->flags2 & CODEC_FLAG2_NON_LINEAR_QUANT);
339

    
340
    if(avctx->rc_max_rate && !avctx->rc_buffer_size){
341
        av_log(avctx, AV_LOG_ERROR, "a vbv buffer size is needed, for encoding with a maximum bitrate\n");
342
        return -1;
343
    }
344

    
345
    if(avctx->rc_min_rate && avctx->rc_max_rate != avctx->rc_min_rate){
346
        av_log(avctx, AV_LOG_INFO, "Warning min_rate > 0 but min_rate != max_rate isn't recommended!\n");
347
    }
348

    
349
    if(avctx->rc_min_rate && avctx->rc_min_rate > avctx->bit_rate){
350
        av_log(avctx, AV_LOG_ERROR, "bitrate below min bitrate\n");
351
        return -1;
352
    }
353

    
354
    if(avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate){
355
        av_log(avctx, AV_LOG_INFO, "bitrate above max bitrate\n");
356
        return -1;
357
    }
358

    
359
    if(avctx->rc_max_rate && avctx->rc_max_rate == avctx->bit_rate && avctx->rc_max_rate != avctx->rc_min_rate){
360
        av_log(avctx, AV_LOG_INFO, "impossible bitrate constraints, this will fail\n");
361
    }
362

    
363
    if(avctx->rc_buffer_size && avctx->bit_rate*(int64_t)avctx->time_base.num > avctx->rc_buffer_size * (int64_t)avctx->time_base.den){
364
        av_log(avctx, AV_LOG_ERROR, "VBV buffer too small for bitrate\n");
365
        return -1;
366
    }
367

    
368
    if(!s->fixed_qscale && avctx->bit_rate*av_q2d(avctx->time_base) > avctx->bit_rate_tolerance){
369
        av_log(avctx, AV_LOG_ERROR, "bitrate tolerance too small for bitrate\n");
370
        return -1;
371
    }
372

    
373
    if(   s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate
374
       && (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO)
375
       && 90000LL * (avctx->rc_buffer_size-1) > s->avctx->rc_max_rate*0xFFFFLL){
376

    
377
        av_log(avctx, AV_LOG_INFO, "Warning vbv_delay will be set to 0xFFFF (=VBR) as the specified vbv buffer is too large for the given bitrate!\n");
378
    }
379

    
380
    if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4
381
       && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P && s->codec_id != CODEC_ID_FLV1){
382
        av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n");
383
        return -1;
384
    }
385

    
386
    if(s->obmc && s->avctx->mb_decision != FF_MB_DECISION_SIMPLE){
387
        av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with simple mb decision\n");
388
        return -1;
389
    }
390

    
391
    if(s->obmc && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P){
392
        av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with H263(+)\n");
393
        return -1;
394
    }
395

    
396
    if(s->quarter_sample && s->codec_id != CODEC_ID_MPEG4){
397
        av_log(avctx, AV_LOG_ERROR, "qpel not supported by codec\n");
398
        return -1;
399
    }
400

    
401
    if(s->data_partitioning && s->codec_id != CODEC_ID_MPEG4){
402
        av_log(avctx, AV_LOG_ERROR, "data partitioning not supported by codec\n");
403
        return -1;
404
    }
405

    
406
    if(s->max_b_frames && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO){
407
        av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n");
408
        return -1;
409
    }
410

    
411
    if ((s->codec_id == CODEC_ID_MPEG4 || s->codec_id == CODEC_ID_H263 ||
412
         s->codec_id == CODEC_ID_H263P) &&
413
        (avctx->sample_aspect_ratio.num > 255 || avctx->sample_aspect_ratio.den > 255)) {
414
        av_log(avctx, AV_LOG_ERROR, "Invalid pixel aspect ratio %i/%i, limit is 255/255\n",
415
               avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den);
416
        return -1;
417
    }
418

    
419
    if((s->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN))
420
       && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG2VIDEO){
421
        av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n");
422
        return -1;
423
    }
424

    
425
    if(s->mpeg_quant && s->codec_id != CODEC_ID_MPEG4){ //FIXME mpeg2 uses that too
426
        av_log(avctx, AV_LOG_ERROR, "mpeg2 style quantization not supported by codec\n");
427
        return -1;
428
    }
429

    
430
    if((s->flags & CODEC_FLAG_CBP_RD) && !avctx->trellis){
431
        av_log(avctx, AV_LOG_ERROR, "CBP RD needs trellis quant\n");
432
        return -1;
433
    }
434

    
435
    if((s->flags & CODEC_FLAG_QP_RD) && s->avctx->mb_decision != FF_MB_DECISION_RD){
436
        av_log(avctx, AV_LOG_ERROR, "QP RD needs mbd=2\n");
437
        return -1;
438
    }
439

    
440
    if(s->avctx->scenechange_threshold < 1000000000 && (s->flags & CODEC_FLAG_CLOSED_GOP)){
441
        av_log(avctx, AV_LOG_ERROR, "closed gop with scene change detection are not supported yet, set threshold to 1000000000\n");
442
        return -1;
443
    }
444

    
445
    if((s->flags2 & CODEC_FLAG2_INTRA_VLC) && s->codec_id != CODEC_ID_MPEG2VIDEO){
446
        av_log(avctx, AV_LOG_ERROR, "intra vlc table not supported by codec\n");
447
        return -1;
448
    }
449

    
450
    if(s->flags & CODEC_FLAG_LOW_DELAY){
451
        if (s->codec_id != CODEC_ID_MPEG2VIDEO){
452
            av_log(avctx, AV_LOG_ERROR, "low delay forcing is only available for mpeg2\n");
453
            return -1;
454
        }
455
        if (s->max_b_frames != 0){
456
            av_log(avctx, AV_LOG_ERROR, "b frames cannot be used with low delay\n");
457
            return -1;
458
        }
459
    }
460

    
461
    if(s->q_scale_type == 1){
462
        if(s->codec_id != CODEC_ID_MPEG2VIDEO){
463
            av_log(avctx, AV_LOG_ERROR, "non linear quant is only available for mpeg2\n");
464
            return -1;
465
        }
466
        if(avctx->qmax > 12){
467
            av_log(avctx, AV_LOG_ERROR, "non linear quant only supports qmax <= 12 currently\n");
468
            return -1;
469
        }
470
    }
471

    
472
    if(s->avctx->thread_count > 1 && s->codec_id != CODEC_ID_MPEG4
473
       && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO
474
       && (s->codec_id != CODEC_ID_H263P || !(s->flags & CODEC_FLAG_H263P_SLICE_STRUCT))){
475
        av_log(avctx, AV_LOG_ERROR, "multi threaded encoding not supported by codec\n");
476
        return -1;
477
    }
478

    
479
    if(s->avctx->thread_count < 1){
480
        av_log(avctx, AV_LOG_ERROR, "automatic thread number detection not supported by codec, patch welcome\n");
481
        return -1;
482
    }
483

    
484
    if(s->avctx->thread_count > 1)
485
        s->rtp_mode= 1;
486

    
487
    if(!avctx->time_base.den || !avctx->time_base.num){
488
        av_log(avctx, AV_LOG_ERROR, "framerate not set\n");
489
        return -1;
490
    }
491

    
492
    i= (INT_MAX/2+128)>>8;
493
    if(avctx->me_threshold >= i){
494
        av_log(avctx, AV_LOG_ERROR, "me_threshold too large, max is %d\n", i - 1);
495
        return -1;
496
    }
497
    if(avctx->mb_threshold >= i){
498
        av_log(avctx, AV_LOG_ERROR, "mb_threshold too large, max is %d\n", i - 1);
499
        return -1;
500
    }
501

    
502
    if(avctx->b_frame_strategy && (avctx->flags&CODEC_FLAG_PASS2)){
503
        av_log(avctx, AV_LOG_INFO, "notice: b_frame_strategy only affects the first pass\n");
504
        avctx->b_frame_strategy = 0;
505
    }
506

    
507
    i= av_gcd(avctx->time_base.den, avctx->time_base.num);
508
    if(i > 1){
509
        av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n");
510
        avctx->time_base.den /= i;
511
        avctx->time_base.num /= i;
512
//        return -1;
513
    }
514

    
515
    if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO || s->codec_id==CODEC_ID_MJPEG){
516
        s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x
517
        s->inter_quant_bias= 0;
518
    }else{
519
        s->intra_quant_bias=0;
520
        s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x
521
    }
522

    
523
    if(avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
524
        s->intra_quant_bias= avctx->intra_quant_bias;
525
    if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)
526
        s->inter_quant_bias= avctx->inter_quant_bias;
527

    
528
    avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift);
529

    
530
    if(avctx->codec_id == CODEC_ID_MPEG4 && s->avctx->time_base.den > (1<<16)-1){
531
        av_log(avctx, AV_LOG_ERROR, "timebase %d/%d not supported by MPEG 4 standard, "
532
               "the maximum admitted value for the timebase denominator is %d\n",
533
               s->avctx->time_base.num, s->avctx->time_base.den, (1<<16)-1);
534
        return -1;
535
    }
536
    s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1;
537

    
538
    switch(avctx->codec->id) {
539
    case CODEC_ID_MPEG1VIDEO:
540
        s->out_format = FMT_MPEG1;
541
        s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
542
        avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
543
        break;
544
    case CODEC_ID_MPEG2VIDEO:
545
        s->out_format = FMT_MPEG1;
546
        s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
547
        avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
548
        s->rtp_mode= 1;
549
        break;
550
    case CODEC_ID_LJPEG:
551
    case CODEC_ID_MJPEG:
552
        s->out_format = FMT_MJPEG;
553
        s->intra_only = 1; /* force intra only for jpeg */
554
        if(avctx->codec->id == CODEC_ID_LJPEG && avctx->pix_fmt == PIX_FMT_BGRA){
555
            s->mjpeg_vsample[0] = s->mjpeg_hsample[0] =
556
            s->mjpeg_vsample[1] = s->mjpeg_hsample[1] =
557
            s->mjpeg_vsample[2] = s->mjpeg_hsample[2] = 1;
558
        }else{
559
            s->mjpeg_vsample[0] = 2;
560
            s->mjpeg_vsample[1] = 2>>chroma_v_shift;
561
            s->mjpeg_vsample[2] = 2>>chroma_v_shift;
562
            s->mjpeg_hsample[0] = 2;
563
            s->mjpeg_hsample[1] = 2>>chroma_h_shift;
564
            s->mjpeg_hsample[2] = 2>>chroma_h_shift;
565
        }
566
        if (!(CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER)
567
            || ff_mjpeg_encode_init(s) < 0)
568
            return -1;
569
        avctx->delay=0;
570
        s->low_delay=1;
571
        break;
572
    case CODEC_ID_H261:
573
        if (!CONFIG_H261_ENCODER)  return -1;
574
        if (ff_h261_get_picture_format(s->width, s->height) < 0) {
575
            av_log(avctx, AV_LOG_ERROR, "The specified picture size of %dx%d is not valid for the H.261 codec.\nValid sizes are 176x144, 352x288\n", s->width, s->height);
576
            return -1;
577
        }
578
        s->out_format = FMT_H261;
579
        avctx->delay=0;
580
        s->low_delay=1;
581
        break;
582
    case CODEC_ID_H263:
583
        if (!CONFIG_H263_ENCODER)  return -1;
584
        if (ff_match_2uint16(h263_format, FF_ARRAY_ELEMS(h263_format), s->width, s->height) == 8) {
585
            av_log(avctx, AV_LOG_INFO, "The specified picture size of %dx%d is not valid for the H.263 codec.\nValid sizes are 128x96, 176x144, 352x288, 704x576, and 1408x1152. Try H.263+.\n", s->width, s->height);
586
            return -1;
587
        }
588
        s->out_format = FMT_H263;
589
        s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
590
        avctx->delay=0;
591
        s->low_delay=1;
592
        break;
593
    case CODEC_ID_H263P:
594
        s->out_format = FMT_H263;
595
        s->h263_plus = 1;
596
        /* Fx */
597
        s->umvplus = (avctx->flags & CODEC_FLAG_H263P_UMV) ? 1:0;
598
        s->h263_aic= (avctx->flags & CODEC_FLAG_AC_PRED) ? 1:0;
599
        s->modified_quant= s->h263_aic;
600
        s->alt_inter_vlc= (avctx->flags & CODEC_FLAG_H263P_AIV) ? 1:0;
601
        s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
602
        s->loop_filter= (avctx->flags & CODEC_FLAG_LOOP_FILTER) ? 1:0;
603
        s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
604
        s->h263_slice_structured= (s->flags & CODEC_FLAG_H263P_SLICE_STRUCT) ? 1:0;
605

    
606
        /* /Fx */
607
        /* These are just to be sure */
608
        avctx->delay=0;
609
        s->low_delay=1;
610
        break;
611
    case CODEC_ID_FLV1:
612
        s->out_format = FMT_H263;
613
        s->h263_flv = 2; /* format = 1; 11-bit codes */
614
        s->unrestricted_mv = 1;
615
        s->rtp_mode=0; /* don't allow GOB */
616
        avctx->delay=0;
617
        s->low_delay=1;
618
        break;
619
    case CODEC_ID_RV10:
620
        s->out_format = FMT_H263;
621
        avctx->delay=0;
622
        s->low_delay=1;
623
        break;
624
    case CODEC_ID_RV20:
625
        s->out_format = FMT_H263;
626
        avctx->delay=0;
627
        s->low_delay=1;
628
        s->modified_quant=1;
629
        s->h263_aic=1;
630
        s->h263_plus=1;
631
        s->loop_filter=1;
632
        s->unrestricted_mv= 0;
633
        break;
634
    case CODEC_ID_MPEG4:
635
        s->out_format = FMT_H263;
636
        s->h263_pred = 1;
637
        s->unrestricted_mv = 1;
638
        s->low_delay= s->max_b_frames ? 0 : 1;
639
        avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
640
        break;
641
    case CODEC_ID_MSMPEG4V1:
642
        s->out_format = FMT_H263;
643
        s->h263_msmpeg4 = 1;
644
        s->h263_pred = 1;
645
        s->unrestricted_mv = 1;
646
        s->msmpeg4_version= 1;
647
        avctx->delay=0;
648
        s->low_delay=1;
649
        break;
650
    case CODEC_ID_MSMPEG4V2:
651
        s->out_format = FMT_H263;
652
        s->h263_msmpeg4 = 1;
653
        s->h263_pred = 1;
654
        s->unrestricted_mv = 1;
655
        s->msmpeg4_version= 2;
656
        avctx->delay=0;
657
        s->low_delay=1;
658
        break;
659
    case CODEC_ID_MSMPEG4V3:
660
        s->out_format = FMT_H263;
661
        s->h263_msmpeg4 = 1;
662
        s->h263_pred = 1;
663
        s->unrestricted_mv = 1;
664
        s->msmpeg4_version= 3;
665
        s->flipflop_rounding=1;
666
        avctx->delay=0;
667
        s->low_delay=1;
668
        break;
669
    case CODEC_ID_WMV1:
670
        s->out_format = FMT_H263;
671
        s->h263_msmpeg4 = 1;
672
        s->h263_pred = 1;
673
        s->unrestricted_mv = 1;
674
        s->msmpeg4_version= 4;
675
        s->flipflop_rounding=1;
676
        avctx->delay=0;
677
        s->low_delay=1;
678
        break;
679
    case CODEC_ID_WMV2:
680
        s->out_format = FMT_H263;
681
        s->h263_msmpeg4 = 1;
682
        s->h263_pred = 1;
683
        s->unrestricted_mv = 1;
684
        s->msmpeg4_version= 5;
685
        s->flipflop_rounding=1;
686
        avctx->delay=0;
687
        s->low_delay=1;
688
        break;
689
    default:
690
        return -1;
691
    }
692

    
693
    avctx->has_b_frames= !s->low_delay;
694

    
695
    s->encoding = 1;
696

    
697
    s->progressive_frame=
698
    s->progressive_sequence= !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN));
699

    
700
    /* init */
701
    if (MPV_common_init(s) < 0)
702
        return -1;
703

    
704
    if(!s->dct_quantize)
705
        s->dct_quantize = dct_quantize_c;
706
    if(!s->denoise_dct)
707
        s->denoise_dct = denoise_dct_c;
708
    s->fast_dct_quantize = s->dct_quantize;
709
    if(avctx->trellis)
710
        s->dct_quantize = dct_quantize_trellis_c;
711

    
712
    if((CONFIG_H263P_ENCODER || CONFIG_RV20_ENCODER) && s->modified_quant)
713
        s->chroma_qscale_table= ff_h263_chroma_qscale_table;
714

    
715
    s->quant_precision=5;
716

    
717
    ff_set_cmp(&s->dsp, s->dsp.ildct_cmp, s->avctx->ildct_cmp);
718
    ff_set_cmp(&s->dsp, s->dsp.frame_skip_cmp, s->avctx->frame_skip_cmp);
719

    
720
    if (CONFIG_H261_ENCODER && s->out_format == FMT_H261)
721
        ff_h261_encode_init(s);
722
    if (CONFIG_H263_ENCODER && s->out_format == FMT_H263)
723
        h263_encode_init(s);
724
    if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version)
725
        ff_msmpeg4_encode_init(s);
726
    if ((CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
727
        && s->out_format == FMT_MPEG1)
728
        ff_mpeg1_encode_init(s);
729

    
730
    /* init q matrix */
731
    for(i=0;i<64;i++) {
732
        int j= s->dsp.idct_permutation[i];
733
        if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){
734
            s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
735
            s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
736
        }else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){
737
            s->intra_matrix[j] =
738
            s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
739
        }else
740
        { /* mpeg1/2 */
741
            s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
742
            s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
743
        }
744
        if(s->avctx->intra_matrix)
745
            s->intra_matrix[j] = s->avctx->intra_matrix[i];
746
        if(s->avctx->inter_matrix)
747
            s->inter_matrix[j] = s->avctx->inter_matrix[i];
748
    }
749

    
750
    /* precompute matrix */
751
    /* for mjpeg, we do include qscale in the matrix */
752
    if (s->out_format != FMT_MJPEG) {
753
        ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
754
                       s->intra_matrix, s->intra_quant_bias, avctx->qmin, 31, 1);
755
        ff_convert_matrix(&s->dsp, s->q_inter_matrix, s->q_inter_matrix16,
756
                       s->inter_matrix, s->inter_quant_bias, avctx->qmin, 31, 0);
757
    }
758

    
759
    if(ff_rate_control_init(s) < 0)
760
        return -1;
761

    
762
    return 0;
763
}
764

    
765
av_cold int MPV_encode_end(AVCodecContext *avctx)
766
{
767
    MpegEncContext *s = avctx->priv_data;
768

    
769
    ff_rate_control_uninit(s);
770

    
771
    MPV_common_end(s);
772
    if ((CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER) && s->out_format == FMT_MJPEG)
773
        ff_mjpeg_encode_close(s);
774

    
775
    av_freep(&avctx->extradata);
776

    
777
    return 0;
778
}
779

    
780
static int get_sae(uint8_t *src, int ref, int stride){
781
    int x,y;
782
    int acc=0;
783

    
784
    for(y=0; y<16; y++){
785
        for(x=0; x<16; x++){
786
            acc+= FFABS(src[x+y*stride] - ref);
787
        }
788
    }
789

    
790
    return acc;
791
}
792

    
793
static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride){
794
    int x, y, w, h;
795
    int acc=0;
796

    
797
    w= s->width &~15;
798
    h= s->height&~15;
799

    
800
    for(y=0; y<h; y+=16){
801
        for(x=0; x<w; x+=16){
802
            int offset= x + y*stride;
803
            int sad = s->dsp.sad[0](NULL, src + offset, ref + offset, stride, 16);
804
            int mean= (s->dsp.pix_sum(src + offset, stride) + 128)>>8;
805
            int sae = get_sae(src + offset, mean, stride);
806

    
807
            acc+= sae + 500 < sad;
808
        }
809
    }
810
    return acc;
811
}
812

    
813

    
814
static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
815
    AVFrame *pic=NULL;
816
    int64_t pts;
817
    int i;
818
    const int encoding_delay= s->max_b_frames;
819
    int direct=1;
820

    
821
    if(pic_arg){
822
        pts= pic_arg->pts;
823
        pic_arg->display_picture_number= s->input_picture_number++;
824

    
825
        if(pts != AV_NOPTS_VALUE){
826
            if(s->user_specified_pts != AV_NOPTS_VALUE){
827
                int64_t time= pts;
828
                int64_t last= s->user_specified_pts;
829

    
830
                if(time <= last){
831
                    av_log(s->avctx, AV_LOG_ERROR, "Error, Invalid timestamp=%"PRId64", last=%"PRId64"\n", pts, s->user_specified_pts);
832
                    return -1;
833
                }
834
            }
835
            s->user_specified_pts= pts;
836
        }else{
837
            if(s->user_specified_pts != AV_NOPTS_VALUE){
838
                s->user_specified_pts=
839
                pts= s->user_specified_pts + 1;
840
                av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%"PRId64")\n", pts);
841
            }else{
842
                pts= pic_arg->display_picture_number;
843
            }
844
        }
845
    }
846

    
847
  if(pic_arg){
848
    if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0;
849
    if(pic_arg->linesize[0] != s->linesize) direct=0;
850
    if(pic_arg->linesize[1] != s->uvlinesize) direct=0;
851
    if(pic_arg->linesize[2] != s->uvlinesize) direct=0;
852

    
853
//    av_log(AV_LOG_DEBUG, "%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize);
854

    
855
    if(direct){
856
        i= ff_find_unused_picture(s, 1);
857

    
858
        pic= (AVFrame*)&s->picture[i];
859
        pic->reference= 3;
860

    
861
        for(i=0; i<4; i++){
862
            pic->data[i]= pic_arg->data[i];
863
            pic->linesize[i]= pic_arg->linesize[i];
864
        }
865
        if(ff_alloc_picture(s, (Picture*)pic, 1) < 0){
866
            return -1;
867
        }
868
    }else{
869
        i= ff_find_unused_picture(s, 0);
870

    
871
        pic= (AVFrame*)&s->picture[i];
872
        pic->reference= 3;
873

    
874
        if(ff_alloc_picture(s, (Picture*)pic, 0) < 0){
875
            return -1;
876
        }
877

    
878
        if(   pic->data[0] + INPLACE_OFFSET == pic_arg->data[0]
879
           && pic->data[1] + INPLACE_OFFSET == pic_arg->data[1]
880
           && pic->data[2] + INPLACE_OFFSET == pic_arg->data[2]){
881
       // empty
882
        }else{
883
            int h_chroma_shift, v_chroma_shift;
884
            avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
885

    
886
            for(i=0; i<3; i++){
887
                int src_stride= pic_arg->linesize[i];
888
                int dst_stride= i ? s->uvlinesize : s->linesize;
889
                int h_shift= i ? h_chroma_shift : 0;
890
                int v_shift= i ? v_chroma_shift : 0;
891
                int w= s->width >>h_shift;
892
                int h= s->height>>v_shift;
893
                uint8_t *src= pic_arg->data[i];
894
                uint8_t *dst= pic->data[i];
895

    
896
                if(!s->avctx->rc_buffer_size)
897
                    dst +=INPLACE_OFFSET;
898

    
899
                if(src_stride==dst_stride)
900
                    memcpy(dst, src, src_stride*h);
901
                else{
902
                    while(h--){
903
                        memcpy(dst, src, w);
904
                        dst += dst_stride;
905
                        src += src_stride;
906
                    }
907
                }
908
            }
909
        }
910
    }
911
    copy_picture_attributes(s, pic, pic_arg);
912
    pic->pts= pts; //we set this here to avoid modifiying pic_arg
913
  }
914

    
915
    /* shift buffer entries */
916
    for(i=1; i<MAX_PICTURE_COUNT /*s->encoding_delay+1*/; i++)
917
        s->input_picture[i-1]= s->input_picture[i];
918

    
919
    s->input_picture[encoding_delay]= (Picture*)pic;
920

    
921
    return 0;
922
}
923

    
924
static int skip_check(MpegEncContext *s, Picture *p, Picture *ref){
925
    int x, y, plane;
926
    int score=0;
927
    int64_t score64=0;
928

    
929
    for(plane=0; plane<3; plane++){
930
        const int stride= p->linesize[plane];
931
        const int bw= plane ? 1 : 2;
932
        for(y=0; y<s->mb_height*bw; y++){
933
            for(x=0; x<s->mb_width*bw; x++){
934
                int off= p->type == FF_BUFFER_TYPE_SHARED ? 0: 16;
935
                int v= s->dsp.frame_skip_cmp[1](s, p->data[plane] + 8*(x + y*stride)+off, ref->data[plane] + 8*(x + y*stride), stride, 8);
936

    
937
                switch(s->avctx->frame_skip_exp){
938
                    case 0: score= FFMAX(score, v); break;
939
                    case 1: score+= FFABS(v);break;
940
                    case 2: score+= v*v;break;
941
                    case 3: score64+= FFABS(v*v*(int64_t)v);break;
942
                    case 4: score64+= v*v*(int64_t)(v*v);break;
943
                }
944
            }
945
        }
946
    }
947

    
948
    if(score) score64= score;
949

    
950
    if(score64 < s->avctx->frame_skip_threshold)
951
        return 1;
952
    if(score64 < ((s->avctx->frame_skip_factor * (int64_t)s->lambda)>>8))
953
        return 1;
954
    return 0;
955
}
956

    
957
static int estimate_best_b_count(MpegEncContext *s){
958
    AVCodec *codec= avcodec_find_encoder(s->avctx->codec_id);
959
    AVCodecContext *c= avcodec_alloc_context();
960
    AVFrame input[FF_MAX_B_FRAMES+2];
961
    const int scale= s->avctx->brd_scale;
962
    int i, j, out_size, p_lambda, b_lambda, lambda2;
963
    int outbuf_size= s->width * s->height; //FIXME
964
    uint8_t *outbuf= av_malloc(outbuf_size);
965
    int64_t best_rd= INT64_MAX;
966
    int best_b_count= -1;
967

    
968
    assert(scale>=0 && scale <=3);
969

    
970
//    emms_c();
971
    p_lambda= s->last_lambda_for[AV_PICTURE_TYPE_P]; //s->next_picture_ptr->quality;
972
    b_lambda= s->last_lambda_for[AV_PICTURE_TYPE_B]; //p_lambda *FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset;
973
    if(!b_lambda) b_lambda= p_lambda; //FIXME we should do this somewhere else
974
    lambda2= (b_lambda*b_lambda + (1<<FF_LAMBDA_SHIFT)/2 ) >> FF_LAMBDA_SHIFT;
975

    
976
    c->width = s->width >> scale;
977
    c->height= s->height>> scale;
978
    c->flags= CODEC_FLAG_QSCALE | CODEC_FLAG_PSNR | CODEC_FLAG_INPUT_PRESERVED /*| CODEC_FLAG_EMU_EDGE*/;
979
    c->flags|= s->avctx->flags & CODEC_FLAG_QPEL;
980
    c->mb_decision= s->avctx->mb_decision;
981
    c->me_cmp= s->avctx->me_cmp;
982
    c->mb_cmp= s->avctx->mb_cmp;
983
    c->me_sub_cmp= s->avctx->me_sub_cmp;
984
    c->pix_fmt = PIX_FMT_YUV420P;
985
    c->time_base= s->avctx->time_base;
986
    c->max_b_frames= s->max_b_frames;
987

    
988
    if (avcodec_open(c, codec) < 0)
989
        return -1;
990

    
991
    for(i=0; i<s->max_b_frames+2; i++){
992
        int ysize= c->width*c->height;
993
        int csize= (c->width/2)*(c->height/2);
994
        Picture pre_input, *pre_input_ptr= i ? s->input_picture[i-1] : s->next_picture_ptr;
995

    
996
        avcodec_get_frame_defaults(&input[i]);
997
        input[i].data[0]= av_malloc(ysize + 2*csize);
998
        input[i].data[1]= input[i].data[0] + ysize;
999
        input[i].data[2]= input[i].data[1] + csize;
1000
        input[i].linesize[0]= c->width;
1001
        input[i].linesize[1]=
1002
        input[i].linesize[2]= c->width/2;
1003

    
1004
        if(pre_input_ptr && (!i || s->input_picture[i-1])) {
1005
            pre_input= *pre_input_ptr;
1006

    
1007
            if(pre_input.type != FF_BUFFER_TYPE_SHARED && i) {
1008
                pre_input.data[0]+=INPLACE_OFFSET;
1009
                pre_input.data[1]+=INPLACE_OFFSET;
1010
                pre_input.data[2]+=INPLACE_OFFSET;
1011
            }
1012

    
1013
            s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0], pre_input.data[0], pre_input.linesize[0], c->width, c->height);
1014
            s->dsp.shrink[scale](input[i].data[1], input[i].linesize[1], pre_input.data[1], pre_input.linesize[1], c->width>>1, c->height>>1);
1015
            s->dsp.shrink[scale](input[i].data[2], input[i].linesize[2], pre_input.data[2], pre_input.linesize[2], c->width>>1, c->height>>1);
1016
        }
1017
    }
1018

    
1019
    for(j=0; j<s->max_b_frames+1; j++){
1020
        int64_t rd=0;
1021

    
1022
        if(!s->input_picture[j])
1023
            break;
1024

    
1025
        c->error[0]= c->error[1]= c->error[2]= 0;
1026

    
1027
        input[0].pict_type= AV_PICTURE_TYPE_I;
1028
        input[0].quality= 1 * FF_QP2LAMBDA;
1029
        out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[0]);
1030
//        rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT;
1031

    
1032
        for(i=0; i<s->max_b_frames+1; i++){
1033
            int is_p= i % (j+1) == j || i==s->max_b_frames;
1034

    
1035
            input[i+1].pict_type= is_p ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_B;
1036
            input[i+1].quality= is_p ? p_lambda : b_lambda;
1037
            out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[i+1]);
1038
            rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1039
        }
1040

    
1041
        /* get the delayed frames */
1042
        while(out_size){
1043
            out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);
1044
            rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1045
        }
1046

    
1047
        rd += c->error[0] + c->error[1] + c->error[2];
1048

    
1049
        if(rd < best_rd){
1050
            best_rd= rd;
1051
            best_b_count= j;
1052
        }
1053
    }
1054

    
1055
    av_freep(&outbuf);
1056
    avcodec_close(c);
1057
    av_freep(&c);
1058

    
1059
    for(i=0; i<s->max_b_frames+2; i++){
1060
        av_freep(&input[i].data[0]);
1061
    }
1062

    
1063
    return best_b_count;
1064
}
1065

    
1066
static int select_input_picture(MpegEncContext *s){
1067
    int i;
1068

    
1069
    for(i=1; i<MAX_PICTURE_COUNT; i++)
1070
        s->reordered_input_picture[i-1]= s->reordered_input_picture[i];
1071
    s->reordered_input_picture[MAX_PICTURE_COUNT-1]= NULL;
1072

    
1073
    /* set next picture type & ordering */
1074
    if(s->reordered_input_picture[0]==NULL && s->input_picture[0]){
1075
        if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture_ptr==NULL || s->intra_only){
1076
            s->reordered_input_picture[0]= s->input_picture[0];
1077
            s->reordered_input_picture[0]->pict_type= AV_PICTURE_TYPE_I;
1078
            s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1079
        }else{
1080
            int b_frames;
1081

    
1082
            if(s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor){
1083
                if(s->picture_in_gop_number < s->gop_size && skip_check(s, s->input_picture[0], s->next_picture_ptr)){
1084
                //FIXME check that te gop check above is +-1 correct
1085
//av_log(NULL, AV_LOG_DEBUG, "skip %p %"PRId64"\n", s->input_picture[0]->data[0], s->input_picture[0]->pts);
1086

    
1087
                    if(s->input_picture[0]->type == FF_BUFFER_TYPE_SHARED){
1088
                        for(i=0; i<4; i++)
1089
                            s->input_picture[0]->data[i]= NULL;
1090
                        s->input_picture[0]->type= 0;
1091
                    }else{
1092
                        assert(   s->input_picture[0]->type==FF_BUFFER_TYPE_USER
1093
                               || s->input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1094

    
1095
                        s->avctx->release_buffer(s->avctx, (AVFrame*)s->input_picture[0]);
1096
                    }
1097

    
1098
                    emms_c();
1099
                    ff_vbv_update(s, 0);
1100

    
1101
                    goto no_output_pic;
1102
                }
1103
            }
1104

    
1105
            if(s->flags&CODEC_FLAG_PASS2){
1106
                for(i=0; i<s->max_b_frames+1; i++){
1107
                    int pict_num= s->input_picture[0]->display_picture_number + i;
1108

    
1109
                    if(pict_num >= s->rc_context.num_entries)
1110
                        break;
1111
                    if(!s->input_picture[i]){
1112
                        s->rc_context.entry[pict_num-1].new_pict_type = AV_PICTURE_TYPE_P;
1113
                        break;
1114
                    }
1115

    
1116
                    s->input_picture[i]->pict_type=
1117
                        s->rc_context.entry[pict_num].new_pict_type;
1118
                }
1119
            }
1120

    
1121
            if(s->avctx->b_frame_strategy==0){
1122
                b_frames= s->max_b_frames;
1123
                while(b_frames && !s->input_picture[b_frames]) b_frames--;
1124
            }else if(s->avctx->b_frame_strategy==1){
1125
                for(i=1; i<s->max_b_frames+1; i++){
1126
                    if(s->input_picture[i] && s->input_picture[i]->b_frame_score==0){
1127
                        s->input_picture[i]->b_frame_score=
1128
                            get_intra_count(s, s->input_picture[i  ]->data[0],
1129
                                               s->input_picture[i-1]->data[0], s->linesize) + 1;
1130
                    }
1131
                }
1132
                for(i=0; i<s->max_b_frames+1; i++){
1133
                    if(s->input_picture[i]==NULL || s->input_picture[i]->b_frame_score - 1 > s->mb_num/s->avctx->b_sensitivity) break;
1134
                }
1135

    
1136
                b_frames= FFMAX(0, i-1);
1137

    
1138
                /* reset scores */
1139
                for(i=0; i<b_frames+1; i++){
1140
                    s->input_picture[i]->b_frame_score=0;
1141
                }
1142
            }else if(s->avctx->b_frame_strategy==2){
1143
                b_frames= estimate_best_b_count(s);
1144
            }else{
1145
                av_log(s->avctx, AV_LOG_ERROR, "illegal b frame strategy\n");
1146
                b_frames=0;
1147
            }
1148

    
1149
            emms_c();
1150
//static int b_count=0;
1151
//b_count+= b_frames;
1152
//av_log(s->avctx, AV_LOG_DEBUG, "b_frames: %d\n", b_count);
1153

    
1154
            for(i= b_frames - 1; i>=0; i--){
1155
                int type= s->input_picture[i]->pict_type;
1156
                if(type && type != AV_PICTURE_TYPE_B)
1157
                    b_frames= i;
1158
            }
1159
            if(s->input_picture[b_frames]->pict_type == AV_PICTURE_TYPE_B && b_frames == s->max_b_frames){
1160
                av_log(s->avctx, AV_LOG_ERROR, "warning, too many b frames in a row\n");
1161
            }
1162

    
1163
            if(s->picture_in_gop_number + b_frames >= s->gop_size){
1164
              if((s->flags2 & CODEC_FLAG2_STRICT_GOP) && s->gop_size > s->picture_in_gop_number){
1165
                    b_frames= s->gop_size - s->picture_in_gop_number - 1;
1166
              }else{
1167
                if(s->flags & CODEC_FLAG_CLOSED_GOP)
1168
                    b_frames=0;
1169
                s->input_picture[b_frames]->pict_type= AV_PICTURE_TYPE_I;
1170
              }
1171
            }
1172

    
1173
            if(   (s->flags & CODEC_FLAG_CLOSED_GOP)
1174
               && b_frames
1175
               && s->input_picture[b_frames]->pict_type== AV_PICTURE_TYPE_I)
1176
                b_frames--;
1177

    
1178
            s->reordered_input_picture[0]= s->input_picture[b_frames];
1179
            if(s->reordered_input_picture[0]->pict_type != AV_PICTURE_TYPE_I)
1180
                s->reordered_input_picture[0]->pict_type= AV_PICTURE_TYPE_P;
1181
            s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1182
            for(i=0; i<b_frames; i++){
1183
                s->reordered_input_picture[i+1]= s->input_picture[i];
1184
                s->reordered_input_picture[i+1]->pict_type= AV_PICTURE_TYPE_B;
1185
                s->reordered_input_picture[i+1]->coded_picture_number= s->coded_picture_number++;
1186
            }
1187
        }
1188
    }
1189
no_output_pic:
1190
    if(s->reordered_input_picture[0]){
1191
        s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=AV_PICTURE_TYPE_B ? 3 : 0;
1192

    
1193
        ff_copy_picture(&s->new_picture, s->reordered_input_picture[0]);
1194

    
1195
        if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_SHARED || s->avctx->rc_buffer_size){
1196
            // input is a shared pix, so we can't modifiy it -> alloc a new one & ensure that the shared one is reuseable
1197

    
1198
            int i= ff_find_unused_picture(s, 0);
1199
            Picture *pic= &s->picture[i];
1200

    
1201
            pic->reference              = s->reordered_input_picture[0]->reference;
1202
            if(ff_alloc_picture(s, pic, 0) < 0){
1203
                return -1;
1204
            }
1205

    
1206
            /* mark us unused / free shared pic */
1207
            if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_INTERNAL)
1208
                s->avctx->release_buffer(s->avctx, (AVFrame*)s->reordered_input_picture[0]);
1209
            for(i=0; i<4; i++)
1210
                s->reordered_input_picture[0]->data[i]= NULL;
1211
            s->reordered_input_picture[0]->type= 0;
1212

    
1213
            copy_picture_attributes(s, (AVFrame*)pic, (AVFrame*)s->reordered_input_picture[0]);
1214

    
1215
            s->current_picture_ptr= pic;
1216
        }else{
1217
            // input is not a shared pix -> reuse buffer for current_pix
1218

    
1219
            assert(   s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
1220
                   || s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1221

    
1222
            s->current_picture_ptr= s->reordered_input_picture[0];
1223
            for(i=0; i<4; i++){
1224
                s->new_picture.data[i]+= INPLACE_OFFSET;
1225
            }
1226
        }
1227
        ff_copy_picture(&s->current_picture, s->current_picture_ptr);
1228

    
1229
        s->picture_number= s->new_picture.display_picture_number;
1230
//printf("dpn:%d\n", s->picture_number);
1231
    }else{
1232
       memset(&s->new_picture, 0, sizeof(Picture));
1233
    }
1234
    return 0;
1235
}
1236

    
1237
int MPV_encode_picture(AVCodecContext *avctx,
1238
                       unsigned char *buf, int buf_size, void *data)
1239
{
1240
    MpegEncContext *s = avctx->priv_data;
1241
    AVFrame *pic_arg = data;
1242
    int i, stuffing_count, context_count = avctx->active_thread_type&FF_THREAD_SLICE ? avctx->thread_count : 1;
1243

    
1244
    for(i=0; i<context_count; i++){
1245
        int start_y= s->thread_context[i]->start_mb_y;
1246
        int   end_y= s->thread_context[i]->  end_mb_y;
1247
        int h= s->mb_height;
1248
        uint8_t *start= buf + (size_t)(((int64_t) buf_size)*start_y/h);
1249
        uint8_t *end  = buf + (size_t)(((int64_t) buf_size)*  end_y/h);
1250

    
1251
        init_put_bits(&s->thread_context[i]->pb, start, end - start);
1252
    }
1253

    
1254
    s->picture_in_gop_number++;
1255

    
1256
    if(load_input_picture(s, pic_arg) < 0)
1257
        return -1;
1258

    
1259
    if(select_input_picture(s) < 0){
1260
        return -1;
1261
    }
1262

    
1263
    /* output? */
1264
    if(s->new_picture.data[0]){
1265
        s->pict_type= s->new_picture.pict_type;
1266
//emms_c();
1267
//printf("qs:%f %f %d\n", s->new_picture.quality, s->current_picture.quality, s->qscale);
1268
        MPV_frame_start(s, avctx);
1269
vbv_retry:
1270
        if (encode_picture(s, s->picture_number) < 0)
1271
            return -1;
1272

    
1273
        avctx->header_bits = s->header_bits;
1274
        avctx->mv_bits     = s->mv_bits;
1275
        avctx->misc_bits   = s->misc_bits;
1276
        avctx->i_tex_bits  = s->i_tex_bits;
1277
        avctx->p_tex_bits  = s->p_tex_bits;
1278
        avctx->i_count     = s->i_count;
1279
        avctx->p_count     = s->mb_num - s->i_count - s->skip_count; //FIXME f/b_count in avctx
1280
        avctx->skip_count  = s->skip_count;
1281

    
1282
        MPV_frame_end(s);
1283

    
1284
        if (CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG)
1285
            ff_mjpeg_encode_picture_trailer(s);
1286

    
1287
        if(avctx->rc_buffer_size){
1288
            RateControlContext *rcc= &s->rc_context;
1289
            int max_size= rcc->buffer_index * avctx->rc_max_available_vbv_use;
1290

    
1291
            if(put_bits_count(&s->pb) > max_size && s->lambda < s->avctx->lmax){
1292
                s->next_lambda= FFMAX(s->lambda+1, s->lambda*(s->qscale+1) / s->qscale);
1293
                if(s->adaptive_quant){
1294
                    int i;
1295
                    for(i=0; i<s->mb_height*s->mb_stride; i++)
1296
                        s->lambda_table[i]= FFMAX(s->lambda_table[i]+1, s->lambda_table[i]*(s->qscale+1) / s->qscale);
1297
                }
1298
                s->mb_skipped = 0;        //done in MPV_frame_start()
1299
                if(s->pict_type==AV_PICTURE_TYPE_P){ //done in encode_picture() so we must undo it
1300
                    if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
1301
                        s->no_rounding ^= 1;
1302
                }
1303
                if(s->pict_type!=AV_PICTURE_TYPE_B){
1304
                    s->time_base= s->last_time_base;
1305
                    s->last_non_b_time= s->time - s->pp_time;
1306
                }
1307
//                av_log(NULL, AV_LOG_ERROR, "R:%d ", s->next_lambda);
1308
                for(i=0; i<context_count; i++){
1309
                    PutBitContext *pb= &s->thread_context[i]->pb;
1310
                    init_put_bits(pb, pb->buf, pb->buf_end - pb->buf);
1311
                }
1312
                goto vbv_retry;
1313
            }
1314

    
1315
            assert(s->avctx->rc_max_rate);
1316
        }
1317

    
1318
        if(s->flags&CODEC_FLAG_PASS1)
1319
            ff_write_pass1_stats(s);
1320

    
1321
        for(i=0; i<4; i++){
1322
            s->current_picture_ptr->error[i]= s->current_picture.error[i];
1323
            avctx->error[i] += s->current_picture_ptr->error[i];
1324
        }
1325

    
1326
        if(s->flags&CODEC_FLAG_PASS1)
1327
            assert(avctx->header_bits + avctx->mv_bits + avctx->misc_bits + avctx->i_tex_bits + avctx->p_tex_bits == put_bits_count(&s->pb));
1328
        flush_put_bits(&s->pb);
1329
        s->frame_bits  = put_bits_count(&s->pb);
1330

    
1331
        stuffing_count= ff_vbv_update(s, s->frame_bits);
1332
        if(stuffing_count){
1333
            if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < stuffing_count + 50){
1334
                av_log(s->avctx, AV_LOG_ERROR, "stuffing too large\n");
1335
                return -1;
1336
            }
1337

    
1338
            switch(s->codec_id){
1339
            case CODEC_ID_MPEG1VIDEO:
1340
            case CODEC_ID_MPEG2VIDEO:
1341
                while(stuffing_count--){
1342
                    put_bits(&s->pb, 8, 0);
1343
                }
1344
            break;
1345
            case CODEC_ID_MPEG4:
1346
                put_bits(&s->pb, 16, 0);
1347
                put_bits(&s->pb, 16, 0x1C3);
1348
                stuffing_count -= 4;
1349
                while(stuffing_count--){
1350
                    put_bits(&s->pb, 8, 0xFF);
1351
                }
1352
            break;
1353
            default:
1354
                av_log(s->avctx, AV_LOG_ERROR, "vbv buffer overflow\n");
1355
            }
1356
            flush_put_bits(&s->pb);
1357
            s->frame_bits  = put_bits_count(&s->pb);
1358
        }
1359

    
1360
        /* update mpeg1/2 vbv_delay for CBR */
1361
        if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && s->out_format == FMT_MPEG1
1362
           && 90000LL * (avctx->rc_buffer_size-1) <= s->avctx->rc_max_rate*0xFFFFLL){
1363
            int vbv_delay, min_delay;
1364
            double inbits = s->avctx->rc_max_rate*av_q2d(s->avctx->time_base);
1365
            int    minbits= s->frame_bits - 8*(s->vbv_delay_ptr - s->pb.buf - 1);
1366
            double bits   = s->rc_context.buffer_index + minbits - inbits;
1367

    
1368
            if(bits<0)
1369
                av_log(s->avctx, AV_LOG_ERROR, "Internal error, negative bits\n");
1370

    
1371
            assert(s->repeat_first_field==0);
1372

    
1373
            vbv_delay=     bits * 90000                               / s->avctx->rc_max_rate;
1374
            min_delay= (minbits * 90000LL + s->avctx->rc_max_rate - 1)/ s->avctx->rc_max_rate;
1375

    
1376
            vbv_delay= FFMAX(vbv_delay, min_delay);
1377

    
1378
            assert(vbv_delay < 0xFFFF);
1379

    
1380
            s->vbv_delay_ptr[0] &= 0xF8;
1381
            s->vbv_delay_ptr[0] |= vbv_delay>>13;
1382
            s->vbv_delay_ptr[1]  = vbv_delay>>5;
1383
            s->vbv_delay_ptr[2] &= 0x07;
1384
            s->vbv_delay_ptr[2] |= vbv_delay<<3;
1385
            avctx->vbv_delay = vbv_delay*300;
1386
        }
1387
        s->total_bits += s->frame_bits;
1388
        avctx->frame_bits  = s->frame_bits;
1389
    }else{
1390
        assert((put_bits_ptr(&s->pb) == s->pb.buf));
1391
        s->frame_bits=0;
1392
    }
1393
    assert((s->frame_bits&7)==0);
1394

    
1395
    return s->frame_bits/8;
1396
}
1397

    
1398
static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold)
1399
{
1400
    static const char tab[64]=
1401
        {3,2,2,1,1,1,1,1,
1402
         1,1,1,1,1,1,1,1,
1403
         1,1,1,1,1,1,1,1,
1404
         0,0,0,0,0,0,0,0,
1405
         0,0,0,0,0,0,0,0,
1406
         0,0,0,0,0,0,0,0,
1407
         0,0,0,0,0,0,0,0,
1408
         0,0,0,0,0,0,0,0};
1409
    int score=0;
1410
    int run=0;
1411
    int i;
1412
    DCTELEM *block= s->block[n];
1413
    const int last_index= s->block_last_index[n];
1414
    int skip_dc;
1415

    
1416
    if(threshold<0){
1417
        skip_dc=0;
1418
        threshold= -threshold;
1419
    }else
1420
        skip_dc=1;
1421

    
1422
    /* Are all we could set to zero already zero? */
1423
    if(last_index<=skip_dc - 1) return;
1424

    
1425
    for(i=0; i<=last_index; i++){
1426
        const int j = s->intra_scantable.permutated[i];
1427
        const int level = FFABS(block[j]);
1428
        if(level==1){
1429
            if(skip_dc && i==0) continue;
1430
            score+= tab[run];
1431
            run=0;
1432
        }else if(level>1){
1433
            return;
1434
        }else{
1435
            run++;
1436
        }
1437
    }
1438
    if(score >= threshold) return;
1439
    for(i=skip_dc; i<=last_index; i++){
1440
        const int j = s->intra_scantable.permutated[i];
1441
        block[j]=0;
1442
    }
1443
    if(block[0]) s->block_last_index[n]= 0;
1444
    else         s->block_last_index[n]= -1;
1445
}
1446

    
1447
static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1448
{
1449
    int i;
1450
    const int maxlevel= s->max_qcoeff;
1451
    const int minlevel= s->min_qcoeff;
1452
    int overflow=0;
1453

    
1454
    if(s->mb_intra){
1455
        i=1; //skip clipping of intra dc
1456
    }else
1457
        i=0;
1458

    
1459
    for(;i<=last_index; i++){
1460
        const int j= s->intra_scantable.permutated[i];
1461
        int level = block[j];
1462

    
1463
        if     (level>maxlevel){
1464
            level=maxlevel;
1465
            overflow++;
1466
        }else if(level<minlevel){
1467
            level=minlevel;
1468
            overflow++;
1469
        }
1470

    
1471
        block[j]= level;
1472
    }
1473

    
1474
    if(overflow && s->avctx->mb_decision == FF_MB_DECISION_SIMPLE)
1475
        av_log(s->avctx, AV_LOG_INFO, "warning, clipping %d dct coefficients to %d..%d\n", overflow, minlevel, maxlevel);
1476
}
1477

    
1478
static void get_visual_weight(int16_t *weight, uint8_t *ptr, int stride){
1479
    int x, y;
1480
//FIXME optimize
1481
    for(y=0; y<8; y++){
1482
        for(x=0; x<8; x++){
1483
            int x2, y2;
1484
            int sum=0;
1485
            int sqr=0;
1486
            int count=0;
1487

    
1488
            for(y2= FFMAX(y-1, 0); y2 < FFMIN(8, y+2); y2++){
1489
                for(x2= FFMAX(x-1, 0); x2 < FFMIN(8, x+2); x2++){
1490
                    int v= ptr[x2 + y2*stride];
1491
                    sum += v;
1492
                    sqr += v*v;
1493
                    count++;
1494
                }
1495
            }
1496
            weight[x + 8*y]= (36*ff_sqrt(count*sqr - sum*sum)) / count;
1497
        }
1498
    }
1499
}
1500

    
1501
static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count)
1502
{
1503
    int16_t weight[8][64];
1504
    DCTELEM orig[8][64];
1505
    const int mb_x= s->mb_x;
1506
    const int mb_y= s->mb_y;
1507
    int i;
1508
    int skip_dct[8];
1509
    int dct_offset   = s->linesize*8; //default for progressive frames
1510
    uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1511
    int wrap_y, wrap_c;
1512

    
1513
    for(i=0; i<mb_block_count; i++) skip_dct[i]=s->skipdct;
1514

    
1515
    if(s->adaptive_quant){
1516
        const int last_qp= s->qscale;
1517
        const int mb_xy= mb_x + mb_y*s->mb_stride;
1518

    
1519
        s->lambda= s->lambda_table[mb_xy];
1520
        update_qscale(s);
1521

    
1522
        if(!(s->flags&CODEC_FLAG_QP_RD)){
1523
            s->qscale= s->current_picture_ptr->qscale_table[mb_xy];
1524
            s->dquant= s->qscale - last_qp;
1525

    
1526
            if(s->out_format==FMT_H263){
1527
                s->dquant= av_clip(s->dquant, -2, 2);
1528

    
1529
                if(s->codec_id==CODEC_ID_MPEG4){
1530
                    if(!s->mb_intra){
1531
                        if(s->pict_type == AV_PICTURE_TYPE_B){
1532
                            if(s->dquant&1 || s->mv_dir&MV_DIRECT)
1533
                                s->dquant= 0;
1534
                        }
1535
                        if(s->mv_type==MV_TYPE_8X8)
1536
                            s->dquant=0;
1537
                    }
1538
                }
1539
            }
1540
        }
1541
        ff_set_qscale(s, last_qp + s->dquant);
1542
    }else if(s->flags&CODEC_FLAG_QP_RD)
1543
        ff_set_qscale(s, s->qscale + s->dquant);
1544

    
1545
    wrap_y = s->linesize;
1546
    wrap_c = s->uvlinesize;
1547
    ptr_y = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
1548
    ptr_cb = s->new_picture.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1549
    ptr_cr = s->new_picture.data[2] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1550

    
1551
    if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
1552
        uint8_t *ebuf= s->edge_emu_buffer + 32;
1553
        s->dsp.emulated_edge_mc(ebuf            , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width   , s->height);
1554
        ptr_y= ebuf;
1555
        s->dsp.emulated_edge_mc(ebuf+18*wrap_y  , ptr_cb, wrap_c, 8, mb_block_height, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
1556
        ptr_cb= ebuf+18*wrap_y;
1557
        s->dsp.emulated_edge_mc(ebuf+18*wrap_y+8, ptr_cr, wrap_c, 8, mb_block_height, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
1558
        ptr_cr= ebuf+18*wrap_y+8;
1559
    }
1560

    
1561
    if (s->mb_intra) {
1562
        if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1563
            int progressive_score, interlaced_score;
1564

    
1565
            s->interlaced_dct=0;
1566
            progressive_score= s->dsp.ildct_cmp[4](s, ptr_y           , NULL, wrap_y, 8)
1567
                              +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y*8, NULL, wrap_y, 8) - 400;
1568

    
1569
            if(progressive_score > 0){
1570
                interlaced_score = s->dsp.ildct_cmp[4](s, ptr_y           , NULL, wrap_y*2, 8)
1571
                                  +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y  , NULL, wrap_y*2, 8);
1572
                if(progressive_score > interlaced_score){
1573
                    s->interlaced_dct=1;
1574

    
1575
                    dct_offset= wrap_y;
1576
                    wrap_y<<=1;
1577
                    if (s->chroma_format == CHROMA_422)
1578
                        wrap_c<<=1;
1579
                }
1580
            }
1581
        }
1582

    
1583
        s->dsp.get_pixels(s->block[0], ptr_y                 , wrap_y);
1584
        s->dsp.get_pixels(s->block[1], ptr_y              + 8, wrap_y);
1585
        s->dsp.get_pixels(s->block[2], ptr_y + dct_offset    , wrap_y);
1586
        s->dsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y);
1587

    
1588
        if(s->flags&CODEC_FLAG_GRAY){
1589
            skip_dct[4]= 1;
1590
            skip_dct[5]= 1;
1591
        }else{
1592
            s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c);
1593
            s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c);
1594
            if(!s->chroma_y_shift){ /* 422 */
1595
                s->dsp.get_pixels(s->block[6], ptr_cb + (dct_offset>>1), wrap_c);
1596
                s->dsp.get_pixels(s->block[7], ptr_cr + (dct_offset>>1), wrap_c);
1597
            }
1598
        }
1599
    }else{
1600
        op_pixels_func (*op_pix)[4];
1601
        qpel_mc_func (*op_qpix)[16];
1602
        uint8_t *dest_y, *dest_cb, *dest_cr;
1603

    
1604
        dest_y  = s->dest[0];
1605
        dest_cb = s->dest[1];
1606
        dest_cr = s->dest[2];
1607

    
1608
        if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
1609
            op_pix = s->dsp.put_pixels_tab;
1610
            op_qpix= s->dsp.put_qpel_pixels_tab;
1611
        }else{
1612
            op_pix = s->dsp.put_no_rnd_pixels_tab;
1613
            op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab;
1614
        }
1615

    
1616
        if (s->mv_dir & MV_DIR_FORWARD) {
1617
            MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix);
1618
            op_pix = s->dsp.avg_pixels_tab;
1619
            op_qpix= s->dsp.avg_qpel_pixels_tab;
1620
        }
1621
        if (s->mv_dir & MV_DIR_BACKWARD) {
1622
            MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix);
1623
        }
1624

    
1625
        if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1626
            int progressive_score, interlaced_score;
1627

    
1628
            s->interlaced_dct=0;
1629
            progressive_score= s->dsp.ildct_cmp[0](s, dest_y           , ptr_y           , wrap_y, 8)
1630
                              +s->dsp.ildct_cmp[0](s, dest_y + wrap_y*8, ptr_y + wrap_y*8, wrap_y, 8) - 400;
1631

    
1632
            if(s->avctx->ildct_cmp == FF_CMP_VSSE) progressive_score -= 400;
1633

    
1634
            if(progressive_score>0){
1635
                interlaced_score = s->dsp.ildct_cmp[0](s, dest_y           , ptr_y           , wrap_y*2, 8)
1636
                                  +s->dsp.ildct_cmp[0](s, dest_y + wrap_y  , ptr_y + wrap_y  , wrap_y*2, 8);
1637

    
1638
                if(progressive_score > interlaced_score){
1639
                    s->interlaced_dct=1;
1640

    
1641
                    dct_offset= wrap_y;
1642
                    wrap_y<<=1;
1643
                    if (s->chroma_format == CHROMA_422)
1644
                        wrap_c<<=1;
1645
                }
1646
            }
1647
        }
1648

    
1649
        s->dsp.diff_pixels(s->block[0], ptr_y                 , dest_y                 , wrap_y);
1650
        s->dsp.diff_pixels(s->block[1], ptr_y              + 8, dest_y              + 8, wrap_y);
1651
        s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset    , dest_y + dct_offset    , wrap_y);
1652
        s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y);
1653

    
1654
        if(s->flags&CODEC_FLAG_GRAY){
1655
            skip_dct[4]= 1;
1656
            skip_dct[5]= 1;
1657
        }else{
1658
            s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
1659
            s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
1660
            if(!s->chroma_y_shift){ /* 422 */
1661
                s->dsp.diff_pixels(s->block[6], ptr_cb + (dct_offset>>1), dest_cb + (dct_offset>>1), wrap_c);
1662
                s->dsp.diff_pixels(s->block[7], ptr_cr + (dct_offset>>1), dest_cr + (dct_offset>>1), wrap_c);
1663
            }
1664
        }
1665
        /* pre quantization */
1666
        if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){
1667
            //FIXME optimize
1668
            if(s->dsp.sad[1](NULL, ptr_y               , dest_y               , wrap_y, 8) < 20*s->qscale) skip_dct[0]= 1;
1669
            if(s->dsp.sad[1](NULL, ptr_y            + 8, dest_y            + 8, wrap_y, 8) < 20*s->qscale) skip_dct[1]= 1;
1670
            if(s->dsp.sad[1](NULL, ptr_y +dct_offset   , dest_y +dct_offset   , wrap_y, 8) < 20*s->qscale) skip_dct[2]= 1;
1671
            if(s->dsp.sad[1](NULL, ptr_y +dct_offset+ 8, dest_y +dct_offset+ 8, wrap_y, 8) < 20*s->qscale) skip_dct[3]= 1;
1672
            if(s->dsp.sad[1](NULL, ptr_cb              , dest_cb              , wrap_c, 8) < 20*s->qscale) skip_dct[4]= 1;
1673
            if(s->dsp.sad[1](NULL, ptr_cr              , dest_cr              , wrap_c, 8) < 20*s->qscale) skip_dct[5]= 1;
1674
            if(!s->chroma_y_shift){ /* 422 */
1675
                if(s->dsp.sad[1](NULL, ptr_cb +(dct_offset>>1), dest_cb +(dct_offset>>1), wrap_c, 8) < 20*s->qscale) skip_dct[6]= 1;
1676
                if(s->dsp.sad[1](NULL, ptr_cr +(dct_offset>>1), dest_cr +(dct_offset>>1), wrap_c, 8) < 20*s->qscale) skip_dct[7]= 1;
1677
            }
1678
        }
1679
    }
1680

    
1681
    if(s->avctx->quantizer_noise_shaping){
1682
        if(!skip_dct[0]) get_visual_weight(weight[0], ptr_y                 , wrap_y);
1683
        if(!skip_dct[1]) get_visual_weight(weight[1], ptr_y              + 8, wrap_y);
1684
        if(!skip_dct[2]) get_visual_weight(weight[2], ptr_y + dct_offset    , wrap_y);
1685
        if(!skip_dct[3]) get_visual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y);
1686
        if(!skip_dct[4]) get_visual_weight(weight[4], ptr_cb                , wrap_c);
1687
        if(!skip_dct[5]) get_visual_weight(weight[5], ptr_cr                , wrap_c);
1688
        if(!s->chroma_y_shift){ /* 422 */
1689
            if(!skip_dct[6]) get_visual_weight(weight[6], ptr_cb + (dct_offset>>1), wrap_c);
1690
            if(!skip_dct[7]) get_visual_weight(weight[7], ptr_cr + (dct_offset>>1), wrap_c);
1691
        }
1692
        memcpy(orig[0], s->block[0], sizeof(DCTELEM)*64*mb_block_count);
1693
    }
1694

    
1695
    /* DCT & quantize */
1696
    assert(s->out_format!=FMT_MJPEG || s->qscale==8);
1697
    {
1698
        for(i=0;i<mb_block_count;i++) {
1699
            if(!skip_dct[i]){
1700
                int overflow;
1701
                s->block_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow);
1702
            // FIXME we could decide to change to quantizer instead of clipping
1703
            // JS: I don't think that would be a good idea it could lower quality instead
1704
            //     of improve it. Just INTRADC clipping deserves changes in quantizer
1705
                if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1706
            }else
1707
                s->block_last_index[i]= -1;
1708
        }
1709
        if(s->avctx->quantizer_noise_shaping){
1710
            for(i=0;i<mb_block_count;i++) {
1711
                if(!skip_dct[i]){
1712
                    s->block_last_index[i] = dct_quantize_refine(s, s->block[i], weight[i], orig[i], i, s->qscale);
1713
                }
1714
            }
1715
        }
1716

    
1717
        if(s->luma_elim_threshold && !s->mb_intra)
1718
            for(i=0; i<4; i++)
1719
                dct_single_coeff_elimination(s, i, s->luma_elim_threshold);
1720
        if(s->chroma_elim_threshold && !s->mb_intra)
1721
            for(i=4; i<mb_block_count; i++)
1722
                dct_single_coeff_elimination(s, i, s->chroma_elim_threshold);
1723

    
1724
        if(s->flags & CODEC_FLAG_CBP_RD){
1725
            for(i=0;i<mb_block_count;i++) {
1726
                if(s->block_last_index[i] == -1)
1727
                    s->coded_score[i]= INT_MAX/256;
1728
            }
1729
        }
1730
    }
1731

    
1732
    if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
1733
        s->block_last_index[4]=
1734
        s->block_last_index[5]= 0;
1735
        s->block[4][0]=
1736
        s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale;
1737
    }
1738

    
1739
    //non c quantize code returns incorrect block_last_index FIXME
1740
    if(s->alternate_scan && s->dct_quantize != dct_quantize_c){
1741
        for(i=0; i<mb_block_count; i++){
1742
            int j;
1743
            if(s->block_last_index[i]>0){
1744
                for(j=63; j>0; j--){
1745
                    if(s->block[i][ s->intra_scantable.permutated[j] ]) break;
1746
                }
1747
                s->block_last_index[i]= j;
1748
            }
1749
        }
1750
    }
1751

    
1752
    /* huffman encode */
1753
    switch(s->codec_id){ //FIXME funct ptr could be slightly faster
1754
    case CODEC_ID_MPEG1VIDEO:
1755
    case CODEC_ID_MPEG2VIDEO:
1756
        if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
1757
            mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1758
        break;
1759
    case CODEC_ID_MPEG4:
1760
        if (CONFIG_MPEG4_ENCODER)
1761
            mpeg4_encode_mb(s, s->block, motion_x, motion_y);
1762
        break;
1763
    case CODEC_ID_MSMPEG4V2:
1764
    case CODEC_ID_MSMPEG4V3:
1765
    case CODEC_ID_WMV1:
1766
        if (CONFIG_MSMPEG4_ENCODER)
1767
            msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1768
        break;
1769
    case CODEC_ID_WMV2:
1770
        if (CONFIG_WMV2_ENCODER)
1771
            ff_wmv2_encode_mb(s, s->block, motion_x, motion_y);
1772
        break;
1773
    case CODEC_ID_H261:
1774
        if (CONFIG_H261_ENCODER)
1775
            ff_h261_encode_mb(s, s->block, motion_x, motion_y);
1776
        break;
1777
    case CODEC_ID_H263:
1778
    case CODEC_ID_H263P:
1779
    case CODEC_ID_FLV1:
1780
    case CODEC_ID_RV10:
1781
    case CODEC_ID_RV20:
1782
        if (CONFIG_H263_ENCODER)
1783
            h263_encode_mb(s, s->block, motion_x, motion_y);
1784
        break;
1785
    case CODEC_ID_MJPEG:
1786
        if (CONFIG_MJPEG_ENCODER)
1787
            ff_mjpeg_encode_mb(s, s->block);
1788
        break;
1789
    default:
1790
        assert(0);
1791
    }
1792
}
1793

    
1794
static av_always_inline void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
1795
{
1796
    if (s->chroma_format == CHROMA_420) encode_mb_internal(s, motion_x, motion_y,  8, 6);
1797
    else                                encode_mb_internal(s, motion_x, motion_y, 16, 8);
1798
}
1799

    
1800
static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1801
    int i;
1802

    
1803
    memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1804

    
1805
    /* mpeg1 */
1806
    d->mb_skip_run= s->mb_skip_run;
1807
    for(i=0; i<3; i++)
1808
        d->last_dc[i]= s->last_dc[i];
1809

    
1810
    /* statistics */
1811
    d->mv_bits= s->mv_bits;
1812
    d->i_tex_bits= s->i_tex_bits;
1813
    d->p_tex_bits= s->p_tex_bits;
1814
    d->i_count= s->i_count;
1815
    d->f_count= s->f_count;
1816
    d->b_count= s->b_count;
1817
    d->skip_count= s->skip_count;
1818
    d->misc_bits= s->misc_bits;
1819
    d->last_bits= 0;
1820

    
1821
    d->mb_skipped= 0;
1822
    d->qscale= s->qscale;
1823
    d->dquant= s->dquant;
1824

    
1825
    d->esc3_level_length= s->esc3_level_length;
1826
}
1827

    
1828
static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1829
    int i;
1830

    
1831
    memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
1832
    memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1833

    
1834
    /* mpeg1 */
1835
    d->mb_skip_run= s->mb_skip_run;
1836
    for(i=0; i<3; i++)
1837
        d->last_dc[i]= s->last_dc[i];
1838

    
1839
    /* statistics */
1840
    d->mv_bits= s->mv_bits;
1841
    d->i_tex_bits= s->i_tex_bits;
1842
    d->p_tex_bits= s->p_tex_bits;
1843
    d->i_count= s->i_count;
1844
    d->f_count= s->f_count;
1845
    d->b_count= s->b_count;
1846
    d->skip_count= s->skip_count;
1847
    d->misc_bits= s->misc_bits;
1848

    
1849
    d->mb_intra= s->mb_intra;
1850
    d->mb_skipped= s->mb_skipped;
1851
    d->mv_type= s->mv_type;
1852
    d->mv_dir= s->mv_dir;
1853
    d->pb= s->pb;
1854
    if(s->data_partitioning){
1855
        d->pb2= s->pb2;
1856
        d->tex_pb= s->tex_pb;
1857
    }
1858
    d->block= s->block;
1859
    for(i=0; i<8; i++)
1860
        d->block_last_index[i]= s->block_last_index[i];
1861
    d->interlaced_dct= s->interlaced_dct;
1862
    d->qscale= s->qscale;
1863

    
1864
    d->esc3_level_length= s->esc3_level_length;
1865
}
1866

    
1867
static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type,
1868
                           PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
1869
                           int *dmin, int *next_block, int motion_x, int motion_y)
1870
{
1871
    int score;
1872
    uint8_t *dest_backup[3];
1873

    
1874
    copy_context_before_encode(s, backup, type);
1875

    
1876
    s->block= s->blocks[*next_block];
1877
    s->pb= pb[*next_block];
1878
    if(s->data_partitioning){
1879
        s->pb2   = pb2   [*next_block];
1880
        s->tex_pb= tex_pb[*next_block];
1881
    }
1882

    
1883
    if(*next_block){
1884
        memcpy(dest_backup, s->dest, sizeof(s->dest));
1885
        s->dest[0] = s->rd_scratchpad;
1886
        s->dest[1] = s->rd_scratchpad + 16*s->linesize;
1887
        s->dest[2] = s->rd_scratchpad + 16*s->linesize + 8;
1888
        assert(s->linesize >= 32); //FIXME
1889
    }
1890

    
1891
    encode_mb(s, motion_x, motion_y);
1892

    
1893
    score= put_bits_count(&s->pb);
1894
    if(s->data_partitioning){
1895
        score+= put_bits_count(&s->pb2);
1896
        score+= put_bits_count(&s->tex_pb);
1897
    }
1898

    
1899
    if(s->avctx->mb_decision == FF_MB_DECISION_RD){
1900
        MPV_decode_mb(s, s->block);
1901

    
1902
        score *= s->lambda2;
1903
        score += sse_mb(s) << FF_LAMBDA_SHIFT;
1904
    }
1905

    
1906
    if(*next_block){
1907
        memcpy(s->dest, dest_backup, sizeof(s->dest));
1908
    }
1909

    
1910
    if(score<*dmin){
1911
        *dmin= score;
1912
        *next_block^=1;
1913

    
1914
        copy_context_after_encode(best, s, type);
1915
    }
1916
}
1917

    
1918
static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){
1919
    uint32_t *sq = ff_squareTbl + 256;
1920
    int acc=0;
1921
    int x,y;
1922

    
1923
    if(w==16 && h==16)
1924
        return s->dsp.sse[0](NULL, src1, src2, stride, 16);
1925
    else if(w==8 && h==8)
1926
        return s->dsp.sse[1](NULL, src1, src2, stride, 8);
1927

    
1928
    for(y=0; y<h; y++){
1929
        for(x=0; x<w; x++){
1930
            acc+= sq[src1[x + y*stride] - src2[x + y*stride]];
1931
        }
1932
    }
1933

    
1934
    assert(acc>=0);
1935

    
1936
    return acc;
1937
}
1938

    
1939
static int sse_mb(MpegEncContext *s){
1940
    int w= 16;
1941
    int h= 16;
1942

    
1943
    if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
1944
    if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
1945

    
1946
    if(w==16 && h==16)
1947
      if(s->avctx->mb_cmp == FF_CMP_NSSE){
1948
        return  s->dsp.nsse[0](s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], s->linesize, 16)
1949
               +s->dsp.nsse[1](s, s->new_picture.data[1] + s->mb_x*8  + s->mb_y*s->uvlinesize*8,s->dest[1], s->uvlinesize, 8)
1950
               +s->dsp.nsse[1](s, s->new_picture.data[2] + s->mb_x*8  + s->mb_y*s->uvlinesize*8,s->dest[2], s->uvlinesize, 8);
1951
      }else{
1952
        return  s->dsp.sse[0](NULL, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], s->linesize, 16)
1953
               +s->dsp.sse[1](NULL, s->new_picture.data[1] + s->mb_x*8  + s->mb_y*s->uvlinesize*8,s->dest[1], s->uvlinesize, 8)
1954
               +s->dsp.sse[1](NULL, s->new_picture.data[2] + s->mb_x*8  + s->mb_y*s->uvlinesize*8,s->dest[2], s->uvlinesize, 8);
1955
      }
1956
    else
1957
        return  sse(s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], w, h, s->linesize)
1958
               +sse(s, s->new_picture.data[1] + s->mb_x*8  + s->mb_y*s->uvlinesize*8,s->dest[1], w>>1, h>>1, s->uvlinesize)
1959
               +sse(s, s->new_picture.data[2] + s->mb_x*8  + s->mb_y*s->uvlinesize*8,s->dest[2], w>>1, h>>1, s->uvlinesize);
1960
}
1961

    
1962
static int pre_estimate_motion_thread(AVCodecContext *c, void *arg){
1963
    MpegEncContext *s= *(void**)arg;
1964

    
1965

    
1966
    s->me.pre_pass=1;
1967
    s->me.dia_size= s->avctx->pre_dia_size;
1968
    s->first_slice_line=1;
1969
    for(s->mb_y= s->end_mb_y-1; s->mb_y >= s->start_mb_y; s->mb_y--) {
1970
        for(s->mb_x=s->mb_width-1; s->mb_x >=0 ;s->mb_x--) {
1971
            ff_pre_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1972
        }
1973
        s->first_slice_line=0;
1974
    }
1975

    
1976
    s->me.pre_pass=0;
1977

    
1978
    return 0;
1979
}
1980

    
1981
static int estimate_motion_thread(AVCodecContext *c, void *arg){
1982
    MpegEncContext *s= *(void**)arg;
1983

    
1984
    ff_check_alignment();
1985

    
1986
    s->me.dia_size= s->avctx->dia_size;
1987
    s->first_slice_line=1;
1988
    for(s->mb_y= s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
1989
        s->mb_x=0; //for block init below
1990
        ff_init_block_index(s);
1991
        for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {
1992
            s->block_index[0]+=2;
1993
            s->block_index[1]+=2;
1994
            s->block_index[2]+=2;
1995
            s->block_index[3]+=2;
1996

    
1997
            /* compute motion vector & mb_type and store in context */
1998
            if(s->pict_type==AV_PICTURE_TYPE_B)
1999
                ff_estimate_b_frame_motion(s, s->mb_x, s->mb_y);
2000
            else
2001
                ff_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
2002
        }
2003
        s->first_slice_line=0;
2004
    }
2005
    return 0;
2006
}
2007

    
2008
static int mb_var_thread(AVCodecContext *c, void *arg){
2009
    MpegEncContext *s= *(void**)arg;
2010
    int mb_x, mb_y;
2011

    
2012
    ff_check_alignment();
2013

    
2014
    for(mb_y=s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2015
        for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2016
            int xx = mb_x * 16;
2017
            int yy = mb_y * 16;
2018
            uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
2019
            int varc;
2020
            int sum = s->dsp.pix_sum(pix, s->linesize);
2021

    
2022
            varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
2023

    
2024
            s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
2025
            s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
2026
            s->me.mb_var_sum_temp    += varc;
2027
        }
2028
    }
2029
    return 0;
2030
}
2031

    
2032
static void write_slice_end(MpegEncContext *s){
2033
    if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4){
2034
        if(s->partitioned_frame){
2035
            ff_mpeg4_merge_partitions(s);
2036
        }
2037

    
2038
        ff_mpeg4_stuffing(&s->pb);
2039
    }else if(CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG){
2040
        ff_mjpeg_encode_stuffing(&s->pb);
2041
    }
2042

    
2043
    align_put_bits(&s->pb);
2044
    flush_put_bits(&s->pb);
2045

    
2046
    if((s->flags&CODEC_FLAG_PASS1) && !s->partitioned_frame)
2047
        s->misc_bits+= get_bits_diff(s);
2048
}
2049

    
2050
static int encode_thread(AVCodecContext *c, void *arg){
2051
    MpegEncContext *s= *(void**)arg;
2052
    int mb_x, mb_y, pdif = 0;
2053
    int chr_h= 16>>s->chroma_y_shift;
2054
    int i, j;
2055
    MpegEncContext best_s, backup_s;
2056
    uint8_t bit_buf[2][MAX_MB_BYTES];
2057
    uint8_t bit_buf2[2][MAX_MB_BYTES];
2058
    uint8_t bit_buf_tex[2][MAX_MB_BYTES];
2059
    PutBitContext pb[2], pb2[2], tex_pb[2];
2060
//printf("%d->%d\n", s->resync_mb_y, s->end_mb_y);
2061

    
2062
    ff_check_alignment();
2063

    
2064
    for(i=0; i<2; i++){
2065
        init_put_bits(&pb    [i], bit_buf    [i], MAX_MB_BYTES);
2066
        init_put_bits(&pb2   [i], bit_buf2   [i], MAX_MB_BYTES);
2067
        init_put_bits(&tex_pb[i], bit_buf_tex[i], MAX_MB_BYTES);
2068
    }
2069

    
2070
    s->last_bits= put_bits_count(&s->pb);
2071
    s->mv_bits=0;
2072
    s->misc_bits=0;
2073
    s->i_tex_bits=0;
2074
    s->p_tex_bits=0;
2075
    s->i_count=0;
2076
    s->f_count=0;
2077
    s->b_count=0;
2078
    s->skip_count=0;
2079

    
2080
    for(i=0; i<3; i++){
2081
        /* init last dc values */
2082
        /* note: quant matrix value (8) is implied here */
2083
        s->last_dc[i] = 128 << s->intra_dc_precision;
2084

    
2085
        s->current_picture.error[i] = 0;
2086
    }
2087
    s->mb_skip_run = 0;
2088
    memset(s->last_mv, 0, sizeof(s->last_mv));
2089

    
2090
    s->last_mv_dir = 0;
2091

    
2092
    switch(s->codec_id){
2093
    case CODEC_ID_H263:
2094
    case CODEC_ID_H263P:
2095
    case CODEC_ID_FLV1:
2096
        if (CONFIG_H263_ENCODER)
2097
            s->gob_index = ff_h263_get_gob_height(s);
2098
        break;
2099
    case CODEC_ID_MPEG4:
2100
        if(CONFIG_MPEG4_ENCODER && s->partitioned_frame)
2101
            ff_mpeg4_init_partitions(s);
2102
        break;
2103
    }
2104

    
2105
    s->resync_mb_x=0;
2106
    s->resync_mb_y=0;
2107
    s->first_slice_line = 1;
2108
    s->ptr_lastgob = s->pb.buf;
2109
    for(mb_y= s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2110
//    printf("row %d at %X\n", s->mb_y, (int)s);
2111
        s->mb_x=0;
2112
        s->mb_y= mb_y;
2113

    
2114
        ff_set_qscale(s, s->qscale);
2115
        ff_init_block_index(s);
2116

    
2117
        for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2118
            int xy= mb_y*s->mb_stride + mb_x; // removed const, H261 needs to adjust this
2119
            int mb_type= s->mb_type[xy];
2120
//            int d;
2121
            int dmin= INT_MAX;
2122
            int dir;
2123

    
2124
            if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < MAX_MB_BYTES){
2125
                av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2126
                return -1;
2127
            }
2128
            if(s->data_partitioning){
2129
                if(   s->pb2   .buf_end - s->pb2   .buf - (put_bits_count(&s->    pb2)>>3) < MAX_MB_BYTES
2130
                   || s->tex_pb.buf_end - s->tex_pb.buf - (put_bits_count(&s->tex_pb )>>3) < MAX_MB_BYTES){
2131
                    av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2132
                    return -1;
2133
                }
2134
            }
2135

    
2136
            s->mb_x = mb_x;
2137
            s->mb_y = mb_y;  // moved into loop, can get changed by H.261
2138
            ff_update_block_index(s);
2139

    
2140
            if(CONFIG_H261_ENCODER && s->codec_id == CODEC_ID_H261){
2141
                ff_h261_reorder_mb_index(s);
2142
                xy= s->mb_y*s->mb_stride + s->mb_x;
2143
                mb_type= s->mb_type[xy];
2144
            }
2145

    
2146
            /* write gob / video packet header  */
2147
            if(s->rtp_mode){
2148
                int current_packet_size, is_gob_start;
2149

    
2150
                current_packet_size= ((put_bits_count(&s->pb)+7)>>3) - (s->ptr_lastgob - s->pb.buf);
2151

    
2152
                is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0;
2153

    
2154
                if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1;
2155

    
2156
                switch(s->codec_id){
2157
                case CODEC_ID_H263:
2158
                case CODEC_ID_H263P:
2159
                    if(!s->h263_slice_structured)
2160
                        if(s->mb_x || s->mb_y%s->gob_index) is_gob_start=0;
2161
                    break;
2162
                case CODEC_ID_MPEG2VIDEO:
2163
                    if(s->mb_x==0 && s->mb_y!=0) is_gob_start=1;
2164
                case CODEC_ID_MPEG1VIDEO:
2165
                    if(s->mb_skip_run) is_gob_start=0;
2166
                    break;
2167
                }
2168

    
2169
                if(is_gob_start){
2170
                    if(s->start_mb_y != mb_y || mb_x!=0){
2171
                        write_slice_end(s);
2172

    
2173
                        if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){
2174
                            ff_mpeg4_init_partitions(s);
2175
                        }
2176
                    }
2177

    
2178
                    assert((put_bits_count(&s->pb)&7) == 0);
2179
                    current_packet_size= put_bits_ptr(&s->pb) - s->ptr_lastgob;
2180

    
2181
                    if(s->avctx->error_rate && s->resync_mb_x + s->resync_mb_y > 0){
2182
                        int r= put_bits_count(&s->pb)/8 + s->picture_number + 16 + s->mb_x + s->mb_y;
2183
                        int d= 100 / s->avctx->error_rate;
2184
                        if(r % d == 0){
2185
                            current_packet_size=0;
2186
#ifndef ALT_BITSTREAM_WRITER
2187
                            s->pb.buf_ptr= s->ptr_lastgob;
2188
#endif
2189
                            assert(put_bits_ptr(&s->pb) == s->ptr_lastgob);
2190
                        }
2191
                    }
2192

    
2193
                    if (s->avctx->rtp_callback){
2194
                        int number_mb = (mb_y - s->resync_mb_y)*s->mb_width + mb_x - s->resync_mb_x;
2195
                        s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, current_packet_size, number_mb);
2196
                    }
2197

    
2198
                    switch(s->codec_id){
2199
                    case CODEC_ID_MPEG4:
2200
                        if (CONFIG_MPEG4_ENCODER) {
2201
                            ff_mpeg4_encode_video_packet_header(s);
2202
                            ff_mpeg4_clean_buffers(s);
2203
                        }
2204
                    break;
2205
                    case CODEC_ID_MPEG1VIDEO:
2206
                    case CODEC_ID_MPEG2VIDEO:
2207
                        if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) {
2208
                            ff_mpeg1_encode_slice_header(s);
2209
                            ff_mpeg1_clean_buffers(s);
2210
                        }
2211
                    break;
2212
                    case CODEC_ID_H263:
2213
                    case CODEC_ID_H263P:
2214
                        if (CONFIG_H263_ENCODER)
2215
                            h263_encode_gob_header(s, mb_y);
2216
                    break;
2217
                    }
2218

    
2219
                    if(s->flags&CODEC_FLAG_PASS1){
2220
                        int bits= put_bits_count(&s->pb);
2221
                        s->misc_bits+= bits - s->last_bits;
2222
                        s->last_bits= bits;
2223
                    }
2224

    
2225
                    s->ptr_lastgob += current_packet_size;
2226
                    s->first_slice_line=1;
2227
                    s->resync_mb_x=mb_x;
2228
                    s->resync_mb_y=mb_y;
2229
                }
2230
            }
2231

    
2232
            if(  (s->resync_mb_x   == s->mb_x)
2233
               && s->resync_mb_y+1 == s->mb_y){
2234
                s->first_slice_line=0;
2235
            }
2236

    
2237
            s->mb_skipped=0;
2238
            s->dquant=0; //only for QP_RD
2239

    
2240
            if(mb_type & (mb_type-1) || (s->flags & CODEC_FLAG_QP_RD)){ // more than 1 MB type possible or CODEC_FLAG_QP_RD
2241
                int next_block=0;
2242
                int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
2243

    
2244
                copy_context_before_encode(&backup_s, s, -1);
2245
                backup_s.pb= s->pb;
2246
                best_s.data_partitioning= s->data_partitioning;
2247
                best_s.partitioned_frame= s->partitioned_frame;
2248
                if(s->data_partitioning){
2249
                    backup_s.pb2= s->pb2;
2250
                    backup_s.tex_pb= s->tex_pb;
2251
                }
2252

    
2253
                if(mb_type&CANDIDATE_MB_TYPE_INTER){
2254
                    s->mv_dir = MV_DIR_FORWARD;
2255
                    s->mv_type = MV_TYPE_16X16;
2256
                    s->mb_intra= 0;
2257
                    s->mv[0][0][0] = s->p_mv_table[xy][0];
2258
                    s->mv[0][0][1] = s->p_mv_table[xy][1];
2259
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER, pb, pb2, tex_pb,
2260
                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2261
                }
2262
                if(mb_type&CANDIDATE_MB_TYPE_INTER_I){
2263
                    s->mv_dir = MV_DIR_FORWARD;
2264
                    s->mv_type = MV_TYPE_FIELD;
2265
                    s->mb_intra= 0;
2266
                    for(i=0; i<2; i++){
2267
                        j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2268
                        s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2269
                        s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2270
                    }
2271
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER_I, pb, pb2, tex_pb,
2272
                                 &dmin, &next_block, 0, 0);
2273
                }
2274
                if(mb_type&CANDIDATE_MB_TYPE_SKIPPED){
2275
                    s->mv_dir = MV_DIR_FORWARD;
2276
                    s->mv_type = MV_TYPE_16X16;
2277
                    s->mb_intra= 0;
2278
                    s->mv[0][0][0] = 0;
2279
                    s->mv[0][0][1] = 0;
2280
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_SKIPPED, pb, pb2, tex_pb,
2281
                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2282
                }
2283
                if(mb_type&CANDIDATE_MB_TYPE_INTER4V){
2284
                    s->mv_dir = MV_DIR_FORWARD;
2285
                    s->mv_type = MV_TYPE_8X8;
2286
                    s->mb_intra= 0;
2287
                    for(i=0; i<4; i++){
2288
                        s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2289
                        s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2290
                    }
2291
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER4V, pb, pb2, tex_pb,
2292
                                 &dmin, &next_block, 0, 0);
2293
                }
2294
                if(mb_type&CANDIDATE_MB_TYPE_FORWARD){
2295
                    s->mv_dir = MV_DIR_FORWARD;
2296
                    s->mv_type = MV_TYPE_16X16;
2297
                    s->mb_intra= 0;
2298
                    s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2299
                    s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2300
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD, pb, pb2, tex_pb,
2301
                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2302
                }
2303
                if(mb_type&CANDIDATE_MB_TYPE_BACKWARD){
2304
                    s->mv_dir = MV_DIR_BACKWARD;
2305
                    s->mv_type = MV_TYPE_16X16;
2306
                    s->mb_intra= 0;
2307
                    s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2308
                    s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2309
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD, pb, pb2, tex_pb,
2310
                                 &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
2311
                }
2312
                if(mb_type&CANDIDATE_MB_TYPE_BIDIR){
2313
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2314
                    s->mv_type = MV_TYPE_16X16;
2315
                    s->mb_intra= 0;
2316
                    s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2317
                    s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2318
                    s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2319
                    s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2320
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb,
2321
                                 &dmin, &next_block, 0, 0);
2322
                }
2323
                if(mb_type&CANDIDATE_MB_TYPE_FORWARD_I){
2324
                    s->mv_dir = MV_DIR_FORWARD;
2325
                    s->mv_type = MV_TYPE_FIELD;
2326
                    s->mb_intra= 0;
2327
                    for(i=0; i<2; i++){
2328
                        j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2329
                        s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2330
                        s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2331
                    }
2332
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD_I, pb, pb2, tex_pb,
2333
                                 &dmin, &next_block, 0, 0);
2334
                }
2335
                if(mb_type&CANDIDATE_MB_TYPE_BACKWARD_I){
2336
                    s->mv_dir = MV_DIR_BACKWARD;
2337
                    s->mv_type = MV_TYPE_FIELD;
2338
                    s->mb_intra= 0;
2339
                    for(i=0; i<2; i++){
2340
                        j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2341
                        s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2342
                        s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2343
                    }
2344
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD_I, pb, pb2, tex_pb,
2345
                                 &dmin, &next_block, 0, 0);
2346
                }
2347
                if(mb_type&CANDIDATE_MB_TYPE_BIDIR_I){
2348
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2349
                    s->mv_type = MV_TYPE_FIELD;
2350
                    s->mb_intra= 0;
2351
                    for(dir=0; dir<2; dir++){
2352
                        for(i=0; i<2; i++){
2353
                            j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2354
                            s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2355
                            s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2356
                        }
2357
                    }
2358
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR_I, pb, pb2, tex_pb,
2359
                                 &dmin, &next_block, 0, 0);
2360
                }
2361
                if(mb_type&CANDIDATE_MB_TYPE_INTRA){
2362
                    s->mv_dir = 0;
2363
                    s->mv_type = MV_TYPE_16X16;
2364
                    s->mb_intra= 1;
2365
                    s->mv[0][0][0] = 0;
2366
                    s->mv[0][0][1] = 0;
2367
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTRA, pb, pb2, tex_pb,
2368
                                 &dmin, &next_block, 0, 0);
2369
                    if(s->h263_pred || s->h263_aic){
2370
                        if(best_s.mb_intra)
2371
                            s->mbintra_table[mb_x + mb_y*s->mb_stride]=1;
2372
                        else
2373
                            ff_clean_intra_table_entries(s); //old mode?
2374
                    }
2375
                }
2376

    
2377
                if((s->flags & CODEC_FLAG_QP_RD) && dmin < INT_MAX){
2378
                    if(best_s.mv_type==MV_TYPE_16X16){ //FIXME move 4mv after QPRD
2379
                        const int last_qp= backup_s.qscale;
2380
                        int qpi, qp, dc[6];
2381
                        DCTELEM ac[6][16];
2382
                        const int mvdir= (best_s.mv_dir&MV_DIR_BACKWARD) ? 1 : 0;
2383
                        static const int dquant_tab[4]={-1,1,-2,2};
2384

    
2385
                        assert(backup_s.dquant == 0);
2386

    
2387
                        //FIXME intra
2388
                        s->mv_dir= best_s.mv_dir;
2389
                        s->mv_type = MV_TYPE_16X16;
2390
                        s->mb_intra= best_s.mb_intra;
2391
                        s->mv[0][0][0] = best_s.mv[0][0][0];
2392
                        s->mv[0][0][1] = best_s.mv[0][0][1];
2393
                        s->mv[1][0][0] = best_s.mv[1][0][0];
2394
                        s->mv[1][0][1] = best_s.mv[1][0][1];
2395

    
2396
                        qpi = s->pict_type == AV_PICTURE_TYPE_B ? 2 : 0;
2397
                        for(; qpi<4; qpi++){
2398
                            int dquant= dquant_tab[qpi];
2399
                            qp= last_qp + dquant;
2400
                            if(qp < s->avctx->qmin || qp > s->avctx->qmax)
2401
                                continue;
2402
                            backup_s.dquant= dquant;
2403
                            if(s->mb_intra && s->dc_val[0]){
2404
                                for(i=0; i<6; i++){
2405
                                    dc[i]= s->dc_val[0][ s->block_index[i] ];
2406
                                    memcpy(ac[i], s->ac_val[0][s->block_index[i]], sizeof(DCTELEM)*16);
2407
                                }
2408
                            }
2409

    
2410
                            encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2411
                                         &dmin, &next_block, s->mv[mvdir][0][0], s->mv[mvdir][0][1]);
2412
                            if(best_s.qscale != qp){
2413
                                if(s->mb_intra && s->dc_val[0]){
2414
                                    for(i=0; i<6; i++){
2415
                                        s->dc_val[0][ s->block_index[i] ]= dc[i];
2416
                                        memcpy(s->ac_val[0][s->block_index[i]], ac[i], sizeof(DCTELEM)*16);
2417
                                    }
2418
                                }
2419
                            }
2420
                        }
2421
                    }
2422
                }
2423
                if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT){
2424
                    int mx= s->b_direct_mv_table[xy][0];
2425
                    int my= s->b_direct_mv_table[xy][1];
2426

    
2427
                    backup_s.dquant = 0;
2428
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2429
                    s->mb_intra= 0;
2430
                    ff_mpeg4_set_direct_mv(s, mx, my);
2431
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2432
                                 &dmin, &next_block, mx, my);
2433
                }
2434
                if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT0){
2435
                    backup_s.dquant = 0;
2436
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2437
                    s->mb_intra= 0;
2438
                    ff_mpeg4_set_direct_mv(s, 0, 0);
2439
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2440
                                 &dmin, &next_block, 0, 0);
2441
                }
2442
                if(!best_s.mb_intra && s->flags2&CODEC_FLAG2_SKIP_RD){
2443
                    int coded=0;
2444
                    for(i=0; i<6; i++)
2445
                        coded |= s->block_last_index[i];
2446
                    if(coded){
2447
                        int mx,my;
2448
                        memcpy(s->mv, best_s.mv, sizeof(s->mv));
2449
                        if(CONFIG_MPEG4_ENCODER && best_s.mv_dir & MV_DIRECT){
2450
                            mx=my=0; //FIXME find the one we actually used
2451
                            ff_mpeg4_set_direct_mv(s, mx, my);
2452
                        }else if(best_s.mv_dir&MV_DIR_BACKWARD){
2453
                            mx= s->mv[1][0][0];
2454
                            my= s->mv[1][0][1];
2455
                        }else{
2456
                            mx= s->mv[0][0][0];
2457
                            my= s->mv[0][0][1];
2458
                        }
2459

    
2460
                        s->mv_dir= best_s.mv_dir;
2461
                        s->mv_type = best_s.mv_type;
2462
                        s->mb_intra= 0;
2463
/*                        s->mv[0][0][0] = best_s.mv[0][0][0];
2464
                        s->mv[0][0][1] = best_s.mv[0][0][1];
2465
                        s->mv[1][0][0] = best_s.mv[1][0][0];
2466
                        s->mv[1][0][1] = best_s.mv[1][0][1];*/
2467
                        backup_s.dquant= 0;
2468
                        s->skipdct=1;
2469
                        encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2470
                                        &dmin, &next_block, mx, my);
2471
                        s->skipdct=0;
2472
                    }
2473
                }
2474

    
2475
                s->current_picture.qscale_table[xy]= best_s.qscale;
2476

    
2477
                copy_context_after_encode(s, &best_s, -1);
2478

    
2479
                pb_bits_count= put_bits_count(&s->pb);
2480
                flush_put_bits(&s->pb);
2481
                ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
2482
                s->pb= backup_s.pb;
2483

    
2484
                if(s->data_partitioning){
2485
                    pb2_bits_count= put_bits_count(&s->pb2);
2486
                    flush_put_bits(&s->pb2);
2487
                    ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
2488
                    s->pb2= backup_s.pb2;
2489

    
2490
                    tex_pb_bits_count= put_bits_count(&s->tex_pb);
2491
                    flush_put_bits(&s->tex_pb);
2492
                    ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
2493
                    s->tex_pb= backup_s.tex_pb;
2494
                }
2495
                s->last_bits= put_bits_count(&s->pb);
2496

    
2497
                if (CONFIG_H263_ENCODER &&
2498
                    s->out_format == FMT_H263 && s->pict_type!=AV_PICTURE_TYPE_B)
2499
                    ff_h263_update_motion_val(s);
2500

    
2501
                if(next_block==0){ //FIXME 16 vs linesize16
2502
                    s->dsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad                     , s->linesize  ,16);
2503
                    s->dsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize    , s->uvlinesize, 8);
2504
                    s->dsp.put_pixels_tab[1][0](s->dest[2], s->rd_scratchpad + 16*s->linesize + 8, s->uvlinesize, 8);
2505
                }
2506

    
2507
                if(s->avctx->mb_decision == FF_MB_DECISION_BITS)
2508
                    MPV_decode_mb(s, s->block);
2509
            } else {
2510
                int motion_x = 0, motion_y = 0;
2511
                s->mv_type=MV_TYPE_16X16;
2512
                // only one MB-Type possible
2513

    
2514
                switch(mb_type){
2515
                case CANDIDATE_MB_TYPE_INTRA:
2516
                    s->mv_dir = 0;
2517
                    s->mb_intra= 1;
2518
                    motion_x= s->mv[0][0][0] = 0;
2519
                    motion_y= s->mv[0][0][1] = 0;
2520
                    break;
2521
                case CANDIDATE_MB_TYPE_INTER:
2522
                    s->mv_dir = MV_DIR_FORWARD;
2523
                    s->mb_intra= 0;
2524
                    motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
2525
                    motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
2526
                    break;
2527
                case CANDIDATE_MB_TYPE_INTER_I:
2528
                    s->mv_dir = MV_DIR_FORWARD;
2529
                    s->mv_type = MV_TYPE_FIELD;
2530
                    s->mb_intra= 0;
2531
                    for(i=0; i<2; i++){
2532
                        j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2533
                        s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2534
                        s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2535
                    }
2536
                    break;
2537
                case CANDIDATE_MB_TYPE_INTER4V:
2538
                    s->mv_dir = MV_DIR_FORWARD;
2539
                    s->mv_type = MV_TYPE_8X8;
2540
                    s->mb_intra= 0;
2541
                    for(i=0; i<4; i++){
2542
                        s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2543
                        s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2544
                    }
2545
                    break;
2546
                case CANDIDATE_MB_TYPE_DIRECT:
2547
                    if (CONFIG_MPEG4_ENCODER) {
2548
                        s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2549
                        s->mb_intra= 0;
2550
                        motion_x=s->b_direct_mv_table[xy][0];
2551
                        motion_y=s->b_direct_mv_table[xy][1];
2552
                        ff_mpeg4_set_direct_mv(s, motion_x, motion_y);
2553
                    }
2554
                    break;
2555
                case CANDIDATE_MB_TYPE_DIRECT0:
2556
                    if (CONFIG_MPEG4_ENCODER) {
2557
                        s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2558
                        s->mb_intra= 0;
2559
                        ff_mpeg4_set_direct_mv(s, 0, 0);
2560
                    }
2561
                    break;
2562
                case CANDIDATE_MB_TYPE_BIDIR:
2563
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2564
                    s->mb_intra= 0;
2565
                    s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2566
                    s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2567
                    s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2568
                    s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2569
                    break;
2570
                case CANDIDATE_MB_TYPE_BACKWARD:
2571
                    s->mv_dir = MV_DIR_BACKWARD;
2572
                    s->mb_intra= 0;
2573
                    motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2574
                    motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2575
                    break;
2576
                case CANDIDATE_MB_TYPE_FORWARD:
2577
                    s->mv_dir = MV_DIR_FORWARD;
2578
                    s->mb_intra= 0;
2579
                    motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2580
                    motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2581
//                    printf(" %d %d ", motion_x, motion_y);
2582
                    break;
2583
                case CANDIDATE_MB_TYPE_FORWARD_I:
2584
                    s->mv_dir = MV_DIR_FORWARD;
2585
                    s->mv_type = MV_TYPE_FIELD;
2586
                    s->mb_intra= 0;
2587
                    for(i=0; i<2; i++){
2588
                        j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2589
                        s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2590
                        s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2591
                    }
2592
                    break;
2593
                case CANDIDATE_MB_TYPE_BACKWARD_I:
2594
                    s->mv_dir = MV_DIR_BACKWARD;
2595
                    s->mv_type = MV_TYPE_FIELD;
2596
                    s->mb_intra= 0;
2597
                    for(i=0; i<2; i++){
2598
                        j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2599
                        s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2600
                        s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2601
                    }
2602
                    break;
2603
                case CANDIDATE_MB_TYPE_BIDIR_I:
2604
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2605
                    s->mv_type = MV_TYPE_FIELD;
2606
                    s->mb_intra= 0;
2607
                    for(dir=0; dir<2; dir++){
2608
                        for(i=0; i<2; i++){
2609
                            j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2610
                            s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2611
                            s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2612
                        }
2613
                    }
2614
                    break;
2615
                default:
2616
                    av_log(s->avctx, AV_LOG_ERROR, "illegal MB type\n");
2617
                }
2618

    
2619
                encode_mb(s, motion_x, motion_y);
2620

    
2621
                // RAL: Update last macroblock type
2622
                s->last_mv_dir = s->mv_dir;
2623

    
2624
                if (CONFIG_H263_ENCODER &&
2625
                    s->out_format == FMT_H263 && s->pict_type!=AV_PICTURE_TYPE_B)
2626
                    ff_h263_update_motion_val(s);
2627

    
2628
                MPV_decode_mb(s, s->block);
2629
            }
2630

    
2631
            /* clean the MV table in IPS frames for direct mode in B frames */
2632
            if(s->mb_intra /* && I,P,S_TYPE */){
2633
                s->p_mv_table[xy][0]=0;
2634
                s->p_mv_table[xy][1]=0;
2635
            }
2636

    
2637
            if(s->flags&CODEC_FLAG_PSNR){
2638
                int w= 16;
2639
                int h= 16;
2640

    
2641
                if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
2642
                if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
2643

    
2644
                s->current_picture.error[0] += sse(
2645
                    s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16,
2646
                    s->dest[0], w, h, s->linesize);
2647
                s->current_picture.error[1] += sse(
2648
                    s, s->new_picture.data[1] + s->mb_x*8  + s->mb_y*s->uvlinesize*chr_h,
2649
                    s->dest[1], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
2650
                s->current_picture.error[2] += sse(
2651
                    s, s->new_picture.data[2] + s->mb_x*8  + s->mb_y*s->uvlinesize*chr_h,
2652
                    s->dest[2], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
2653
            }
2654
            if(s->loop_filter){
2655
                if(CONFIG_H263_ENCODER && s->out_format == FMT_H263)
2656
                    ff_h263_loop_filter(s);
2657
            }
2658
//printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, put_bits_count(&s->pb));
2659
        }
2660
    }
2661

    
2662
    //not beautiful here but we must write it before flushing so it has to be here
2663
    if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == AV_PICTURE_TYPE_I)
2664
        msmpeg4_encode_ext_header(s);
2665

    
2666
    write_slice_end(s);
2667

    
2668
    /* Send the last GOB if RTP */
2669
    if (s->avctx->rtp_callback) {
2670
        int number_mb = (mb_y - s->resync_mb_y)*s->mb_width - s->resync_mb_x;
2671
        pdif = put_bits_ptr(&s->pb) - s->ptr_lastgob;
2672
        /* Call the RTP callback to send the last GOB */
2673
        emms_c();
2674
        s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, pdif, number_mb);
2675
    }
2676

    
2677
    return 0;
2678
}
2679

    
2680
#define MERGE(field) dst->field += src->field; src->field=0
2681
static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src){
2682
    MERGE(me.scene_change_score);
2683
    MERGE(me.mc_mb_var_sum_temp);
2684
    MERGE(me.mb_var_sum_temp);
2685
}
2686

    
2687
static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src){
2688
    int i;
2689

    
2690
    MERGE(dct_count[0]); //note, the other dct vars are not part of the context
2691
    MERGE(dct_count[1]);
2692
    MERGE(mv_bits);
2693
    MERGE(i_tex_bits);
2694
    MERGE(p_tex_bits);
2695
    MERGE(i_count);
2696
    MERGE(f_count);
2697
    MERGE(b_count);
2698
    MERGE(skip_count);
2699
    MERGE(misc_bits);
2700
    MERGE(error_count);
2701
    MERGE(padding_bug_score);
2702
    MERGE(current_picture.error[0]);
2703
    MERGE(current_picture.error[1]);
2704
    MERGE(current_picture.error[2]);
2705

    
2706
    if(dst->avctx->noise_reduction){
2707
        for(i=0; i<64; i++){
2708
            MERGE(dct_error_sum[0][i]);
2709
            MERGE(dct_error_sum[1][i]);
2710
        }
2711
    }
2712

    
2713
    assert(put_bits_count(&src->pb) % 8 ==0);
2714
    assert(put_bits_count(&dst->pb) % 8 ==0);
2715
    ff_copy_bits(&dst->pb, src->pb.buf, put_bits_count(&src->pb));
2716
    flush_put_bits(&dst->pb);
2717
}
2718

    
2719
static int estimate_qp(MpegEncContext *s, int dry_run){
2720
    if (s->next_lambda){
2721
        s->current_picture_ptr->quality=
2722
        s->current_picture.quality = s->next_lambda;
2723
        if(!dry_run) s->next_lambda= 0;
2724
    } else if (!s->fixed_qscale) {
2725
        s->current_picture_ptr->quality=
2726
        s->current_picture.quality = ff_rate_estimate_qscale(s, dry_run);
2727
        if (s->current_picture.quality < 0)
2728
            return -1;
2729
    }
2730

    
2731
    if(s->adaptive_quant){
2732
        switch(s->codec_id){
2733
        case CODEC_ID_MPEG4:
2734
            if (CONFIG_MPEG4_ENCODER)
2735
                ff_clean_mpeg4_qscales(s);
2736
            break;
2737
        case CODEC_ID_H263:
2738
        case CODEC_ID_H263P:
2739
        case CODEC_ID_FLV1:
2740
            if (CONFIG_H263_ENCODER)
2741
                ff_clean_h263_qscales(s);
2742
            break;
2743
        default:
2744
            ff_init_qscale_tab(s);
2745
        }
2746

    
2747
        s->lambda= s->lambda_table[0];
2748
        //FIXME broken
2749
    }else
2750
        s->lambda= s->current_picture.quality;
2751
//printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality);
2752
    update_qscale(s);
2753
    return 0;
2754
}
2755

    
2756
/* must be called before writing the header */
2757
static void set_frame_distances(MpegEncContext * s){
2758
    assert(s->current_picture_ptr->pts != AV_NOPTS_VALUE);
2759
    s->time= s->current_picture_ptr->pts*s->avctx->time_base.num;
2760

    
2761
    if(s->pict_type==AV_PICTURE_TYPE_B){
2762
        s->pb_time= s->pp_time - (s->last_non_b_time - s->time);
2763
        assert(s->pb_time > 0 && s->pb_time < s->pp_time);
2764
    }else{
2765
        s->pp_time= s->time - s->last_non_b_time;
2766
        s->last_non_b_time= s->time;
2767
        assert(s->picture_number==0 || s->pp_time > 0);
2768
    }
2769
}
2770

    
2771
static int encode_picture(MpegEncContext *s, int picture_number)
2772
{
2773
    int i;
2774
    int bits;
2775
    int context_count = s->avctx->active_thread_type&FF_THREAD_SLICE ? s->avctx->thread_count : 1;
2776

    
2777
    s->picture_number = picture_number;
2778

    
2779
    /* Reset the average MB variance */
2780
    s->me.mb_var_sum_temp    =
2781
    s->me.mc_mb_var_sum_temp = 0;
2782

    
2783
    /* we need to initialize some time vars before we can encode b-frames */
2784
    // RAL: Condition added for MPEG1VIDEO
2785
    if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->h263_msmpeg4))
2786
        set_frame_distances(s);
2787
    if(CONFIG_MPEG4_ENCODER && s->codec_id == CODEC_ID_MPEG4)
2788
        ff_set_mpeg4_time(s);
2789

    
2790
    s->me.scene_change_score=0;
2791

    
2792
//    s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME rate distortion
2793

    
2794
    if(s->pict_type==AV_PICTURE_TYPE_I){
2795
        if(s->msmpeg4_version >= 3) s->no_rounding=1;
2796
        else                        s->no_rounding=0;
2797
    }else if(s->pict_type!=AV_PICTURE_TYPE_B){
2798
        if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
2799
            s->no_rounding ^= 1;
2800
    }
2801

    
2802
    if(s->flags & CODEC_FLAG_PASS2){
2803
        if (estimate_qp(s,1) < 0)
2804
            return -1;
2805
        ff_get_2pass_fcode(s);
2806
    }else if(!(s->flags & CODEC_FLAG_QSCALE)){
2807
        if(s->pict_type==AV_PICTURE_TYPE_B)
2808
            s->lambda= s->last_lambda_for[s->pict_type];
2809
        else
2810
            s->lambda= s->last_lambda_for[s->last_non_b_pict_type];
2811
        update_qscale(s);
2812
    }
2813

    
2814
    s->mb_intra=0; //for the rate distortion & bit compare functions
2815
    for(i=1; i<context_count; i++){
2816
        ff_update_duplicate_context(s->thread_context[i], s);
2817
    }
2818

    
2819
    if(ff_init_me(s)<0)
2820
        return -1;
2821

    
2822
    /* Estimate motion for every MB */
2823
    if(s->pict_type != AV_PICTURE_TYPE_I){
2824
        s->lambda = (s->lambda * s->avctx->me_penalty_compensation + 128)>>8;
2825
        s->lambda2= (s->lambda2* (int64_t)s->avctx->me_penalty_compensation + 128)>>8;
2826
        if(s->pict_type != AV_PICTURE_TYPE_B && s->avctx->me_threshold==0){
2827
            if((s->avctx->pre_me && s->last_non_b_pict_type==AV_PICTURE_TYPE_I) || s->avctx->pre_me==2){
2828
                s->avctx->execute(s->avctx, pre_estimate_motion_thread, &s->thread_context[0], NULL, context_count, sizeof(void*));
2829
            }
2830
        }
2831

    
2832
        s->avctx->execute(s->avctx, estimate_motion_thread, &s->thread_context[0], NULL, context_count, sizeof(void*));
2833
    }else /* if(s->pict_type == AV_PICTURE_TYPE_I) */{
2834
        /* I-Frame */
2835
        for(i=0; i<s->mb_stride*s->mb_height; i++)
2836
            s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2837

    
2838
        if(!s->fixed_qscale){
2839
            /* finding spatial complexity for I-frame rate control */
2840
            s->avctx->execute(s->avctx, mb_var_thread, &s->thread_context[0], NULL, context_count, sizeof(void*));
2841
        }
2842
    }
2843
    for(i=1; i<context_count; i++){
2844
        merge_context_after_me(s, s->thread_context[i]);
2845
    }
2846
    s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum= s->me.mc_mb_var_sum_temp;
2847
    s->current_picture.   mb_var_sum= s->current_picture_ptr->   mb_var_sum= s->me.   mb_var_sum_temp;
2848
    emms_c();
2849

    
2850
    if(s->me.scene_change_score > s->avctx->scenechange_threshold && s->pict_type == AV_PICTURE_TYPE_P){
2851
        s->pict_type= AV_PICTURE_TYPE_I;
2852
        for(i=0; i<s->mb_stride*s->mb_height; i++)
2853
            s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2854
//printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum);
2855
    }
2856

    
2857
    if(!s->umvplus){
2858
        if(s->pict_type==AV_PICTURE_TYPE_P || s->pict_type==AV_PICTURE_TYPE_S) {
2859
            s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER);
2860

    
2861
            if(s->flags & CODEC_FLAG_INTERLACED_ME){
2862
                int a,b;
2863
                a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select
2864
                b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I);
2865
                s->f_code= FFMAX3(s->f_code, a, b);
2866
            }
2867

    
2868
            ff_fix_long_p_mvs(s);
2869
            ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0);
2870
            if(s->flags & CODEC_FLAG_INTERLACED_ME){
2871
                int j;
2872
                for(i=0; i<2; i++){
2873
                    for(j=0; j<2; j++)
2874
                        ff_fix_long_mvs(s, s->p_field_select_table[i], j,
2875
                                        s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0);
2876
                }
2877
            }
2878
        }
2879

    
2880
        if(s->pict_type==AV_PICTURE_TYPE_B){
2881
            int a, b;
2882

    
2883
            a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD);
2884
            b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2885
            s->f_code = FFMAX(a, b);
2886

    
2887
            a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD);
2888
            b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2889
            s->b_code = FFMAX(a, b);
2890

    
2891
            ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1);
2892
            ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1);
2893
            ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2894
            ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2895
            if(s->flags & CODEC_FLAG_INTERLACED_ME){
2896
                int dir, j;
2897
                for(dir=0; dir<2; dir++){
2898
                    for(i=0; i<2; i++){
2899
                        for(j=0; j<2; j++){
2900
                            int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I)
2901
                                          : (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I);
2902
                            ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j,
2903
                                            s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1);
2904
                        }
2905
                    }
2906
                }
2907
            }
2908
        }
2909
    }
2910

    
2911
    if (estimate_qp(s, 0) < 0)
2912
        return -1;
2913

    
2914
    if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==AV_PICTURE_TYPE_I && !(s->flags & CODEC_FLAG_QSCALE))
2915
        s->qscale= 3; //reduce clipping problems
2916

    
2917
    if (s->out_format == FMT_MJPEG) {
2918
        /* for mjpeg, we do include qscale in the matrix */
2919
        for(i=1;i<64;i++){
2920
            int j= s->dsp.idct_permutation[i];
2921

    
2922
            s->intra_matrix[j] = av_clip_uint8((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
2923
        }
2924
        s->y_dc_scale_table=
2925
        s->c_dc_scale_table= ff_mpeg2_dc_scale_table[s->intra_dc_precision];
2926
        s->intra_matrix[0] = ff_mpeg2_dc_scale_table[s->intra_dc_precision][8];
2927
        ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
2928
                       s->intra_matrix, s->intra_quant_bias, 8, 8, 1);
2929
        s->qscale= 8;
2930
    }
2931

    
2932
    //FIXME var duplication
2933
    s->current_picture_ptr->key_frame=
2934
    s->current_picture.key_frame= s->pict_type == AV_PICTURE_TYPE_I; //FIXME pic_ptr
2935
    s->current_picture_ptr->pict_type=
2936
    s->current_picture.pict_type= s->pict_type;
2937

    
2938
    if(s->current_picture.key_frame)
2939
        s->picture_in_gop_number=0;
2940

    
2941
    s->last_bits= put_bits_count(&s->pb);
2942
    switch(s->out_format) {
2943
    case FMT_MJPEG:
2944
        if (CONFIG_MJPEG_ENCODER)
2945
            ff_mjpeg_encode_picture_header(s);
2946
        break;
2947
    case FMT_H261:
2948
        if (CONFIG_H261_ENCODER)
2949
            ff_h261_encode_picture_header(s, picture_number);
2950
        break;
2951
    case FMT_H263:
2952
        if (CONFIG_WMV2_ENCODER && s->codec_id == CODEC_ID_WMV2)
2953
            ff_wmv2_encode_picture_header(s, picture_number);
2954
        else if (CONFIG_MSMPEG4_ENCODER && s->h263_msmpeg4)
2955
            msmpeg4_encode_picture_header(s, picture_number);
2956
        else if (CONFIG_MPEG4_ENCODER && s->h263_pred)
2957
            mpeg4_encode_picture_header(s, picture_number);
2958
        else if (CONFIG_RV10_ENCODER && s->codec_id == CODEC_ID_RV10)
2959
            rv10_encode_picture_header(s, picture_number);
2960
        else if (CONFIG_RV20_ENCODER && s->codec_id == CODEC_ID_RV20)
2961
            rv20_encode_picture_header(s, picture_number);
2962
        else if (CONFIG_FLV_ENCODER && s->codec_id == CODEC_ID_FLV1)
2963
            ff_flv_encode_picture_header(s, picture_number);
2964
        else if (CONFIG_H263_ENCODER)
2965
            h263_encode_picture_header(s, picture_number);
2966
        break;
2967
    case FMT_MPEG1:
2968
        if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
2969
            mpeg1_encode_picture_header(s, picture_number);
2970
        break;
2971
    case FMT_H264:
2972
        break;
2973
    default:
2974
        assert(0);
2975
    }
2976
    bits= put_bits_count(&s->pb);
2977
    s->header_bits= bits - s->last_bits;
2978

    
2979
    for(i=1; i<context_count; i++){
2980
        update_duplicate_context_after_me(s->thread_context[i], s);
2981
    }
2982
    s->avctx->execute(s->avctx, encode_thread, &s->thread_context[0], NULL, context_count, sizeof(void*));
2983
    for(i=1; i<context_count; i++){
2984
        merge_context_after_encode(s, s->thread_context[i]);
2985
    }
2986
    emms_c();
2987
    return 0;
2988
}
2989

    
2990
static void denoise_dct_c(MpegEncContext *s, DCTELEM *block){
2991
    const int intra= s->mb_intra;
2992
    int i;
2993

    
2994
    s->dct_count[intra]++;
2995

    
2996
    for(i=0; i<64; i++){
2997
        int level= block[i];
2998

    
2999
        if(level){
3000
            if(level>0){
3001
                s->dct_error_sum[intra][i] += level;
3002
                level -= s->dct_offset[intra][i];
3003
                if(level<0) level=0;
3004
            }else{
3005
                s->dct_error_sum[intra][i] -= level;
3006
                level += s->dct_offset[intra][i];
3007
                if(level>0) level=0;
3008
            }
3009
            block[i]= level;
3010
        }
3011
    }
3012
}
3013

    
3014
static int dct_quantize_trellis_c(MpegEncContext *s,
3015
                                  DCTELEM *block, int n,
3016
                                  int qscale, int *overflow){
3017
    const int *qmat;
3018
    const uint8_t *scantable= s->intra_scantable.scantable;
3019
    const uint8_t *perm_scantable= s->intra_scantable.permutated;
3020
    int max=0;
3021
    unsigned int threshold1, threshold2;
3022
    int bias=0;
3023
    int run_tab[65];
3024
    int level_tab[65];
3025
    int score_tab[65];
3026
    int survivor[65];
3027
    int survivor_count;
3028
    int last_run=0;
3029
    int last_level=0;
3030
    int last_score= 0;
3031
    int last_i;
3032
    int coeff[2][64];
3033
    int coeff_count[64];
3034
    int qmul, qadd, start_i, last_non_zero, i, dc;
3035
    const int esc_length= s->ac_esc_length;
3036
    uint8_t * length;
3037
    uint8_t * last_length;
3038
    const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6);
3039

    
3040
    s->dsp.fdct (block);
3041

    
3042
    if(s->dct_error_sum)
3043
        s->denoise_dct(s, block);
3044
    qmul= qscale*16;
3045
    qadd= ((qscale-1)|1)*8;
3046

    
3047
    if (s->mb_intra) {
3048
        int q;
3049
        if (!s->h263_aic) {
3050
            if (n < 4)
3051
                q = s->y_dc_scale;
3052
            else
3053
                q = s->c_dc_scale;
3054
            q = q << 3;
3055
        } else{
3056
            /* For AIC we skip quant/dequant of INTRADC */
3057
            q = 1 << 3;
3058
            qadd=0;
3059
        }
3060

    
3061
        /* note: block[0] is assumed to be positive */
3062
        block[0] = (block[0] + (q >> 1)) / q;
3063
        start_i = 1;
3064
        last_non_zero = 0;
3065
        qmat = s->q_intra_matrix[qscale];
3066
        if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3067
            bias= 1<<(QMAT_SHIFT-1);
3068
        length     = s->intra_ac_vlc_length;
3069
        last_length= s->intra_ac_vlc_last_length;
3070
    } else {
3071
        start_i = 0;
3072
        last_non_zero = -1;
3073
        qmat = s->q_inter_matrix[qscale];
3074
        length     = s->inter_ac_vlc_length;
3075
        last_length= s->inter_ac_vlc_last_length;
3076
    }
3077
    last_i= start_i;
3078

    
3079
    threshold1= (1<<QMAT_SHIFT) - bias - 1;
3080
    threshold2= (threshold1<<1);
3081

    
3082
    for(i=63; i>=start_i; i--) {
3083
        const int j = scantable[i];
3084
        int level = block[j] * qmat[j];
3085

    
3086
        if(((unsigned)(level+threshold1))>threshold2){
3087
            last_non_zero = i;
3088
            break;
3089
        }
3090
    }
3091

    
3092
    for(i=start_i; i<=last_non_zero; i++) {
3093
        const int j = scantable[i];
3094
        int level = block[j] * qmat[j];
3095

    
3096
//        if(   bias+level >= (1<<(QMAT_SHIFT - 3))
3097
//           || bias-level >= (1<<(QMAT_SHIFT - 3))){
3098
        if(((unsigned)(level+threshold1))>threshold2){
3099
            if(level>0){
3100
                level= (bias + level)>>QMAT_SHIFT;
3101
                coeff[0][i]= level;
3102
                coeff[1][i]= level-1;
3103
//                coeff[2][k]= level-2;
3104
            }else{
3105
                level= (bias - level)>>QMAT_SHIFT;
3106
                coeff[0][i]= -level;
3107
                coeff[1][i]= -level+1;
3108
//                coeff[2][k]= -level+2;
3109
            }
3110
            coeff_count[i]= FFMIN(level, 2);
3111
            assert(coeff_count[i]);
3112
            max |=level;
3113
        }else{
3114
            coeff[0][i]= (level>>31)|1;
3115
            coeff_count[i]= 1;
3116
        }
3117
    }
3118

    
3119
    *overflow= s->max_qcoeff < max; //overflow might have happened
3120

    
3121
    if(last_non_zero < start_i){
3122
        memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3123
        return last_non_zero;
3124
    }
3125

    
3126
    score_tab[start_i]= 0;
3127
    survivor[0]= start_i;
3128
    survivor_count= 1;
3129

    
3130
    for(i=start_i; i<=last_non_zero; i++){
3131
        int level_index, j, zero_distortion;
3132
        int dct_coeff= FFABS(block[ scantable[i] ]);
3133
        int best_score=256*256*256*120;
3134

    
3135
        if (   s->dsp.fdct == fdct_ifast
3136
#ifndef FAAN_POSTSCALE
3137
            || s->dsp.fdct == ff_faandct
3138
#endif
3139
           )
3140
            dct_coeff= (dct_coeff*ff_inv_aanscales[ scantable[i] ]) >> 12;
3141
        zero_distortion= dct_coeff*dct_coeff;
3142

    
3143
        for(level_index=0; level_index < coeff_count[i]; level_index++){
3144
            int distortion;
3145
            int level= coeff[level_index][i];
3146
            const int alevel= FFABS(level);
3147
            int unquant_coeff;
3148

    
3149
            assert(level);
3150

    
3151
            if(s->out_format == FMT_H263){
3152
                unquant_coeff= alevel*qmul + qadd;
3153
            }else{ //MPEG1
3154
                j= s->dsp.idct_permutation[ scantable[i] ]; //FIXME optimize
3155
                if(s->mb_intra){
3156
                        unquant_coeff = (int)(  alevel  * qscale * s->intra_matrix[j]) >> 3;
3157
                        unquant_coeff =   (unquant_coeff - 1) | 1;
3158
                }else{
3159
                        unquant_coeff = (((  alevel  << 1) + 1) * qscale * ((int) s->inter_matrix[j])) >> 4;
3160
                        unquant_coeff =   (unquant_coeff - 1) | 1;
3161
                }
3162
                unquant_coeff<<= 3;
3163
            }
3164

    
3165
            distortion= (unquant_coeff - dct_coeff) * (unquant_coeff - dct_coeff) - zero_distortion;
3166
            level+=64;
3167
            if((level&(~127)) == 0){
3168
                for(j=survivor_count-1; j>=0; j--){
3169
                    int run= i - survivor[j];
3170
                    int score= distortion + length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3171
                    score += score_tab[i-run];
3172

    
3173
                    if(score < best_score){
3174
                        best_score= score;
3175
                        run_tab[i+1]= run;
3176
                        level_tab[i+1]= level-64;
3177
                    }
3178
                }
3179

    
3180
                if(s->out_format == FMT_H263){
3181
                    for(j=survivor_count-1; j>=0; j--){
3182
                        int run= i - survivor[j];
3183
                        int score= distortion + last_length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3184
                        score += score_tab[i-run];
3185
                        if(score < last_score){
3186
                            last_score= score;
3187
                            last_run= run;
3188
                            last_level= level-64;
3189
                            last_i= i+1;
3190
                        }
3191
                    }
3192
                }
3193
            }else{
3194
                distortion += esc_length*lambda;
3195
                for(j=survivor_count-1; j>=0; j--){
3196
                    int run= i - survivor[j];
3197
                    int score= distortion + score_tab[i-run];
3198

    
3199
                    if(score < best_score){
3200
                        best_score= score;
3201
                        run_tab[i+1]= run;
3202
                        level_tab[i+1]= level-64;
3203
                    }
3204
                }
3205

    
3206
                if(s->out_format == FMT_H263){
3207
                  for(j=survivor_count-1; j>=0; j--){
3208
                        int run= i - survivor[j];
3209
                        int score= distortion + score_tab[i-run];
3210
                        if(score < last_score){
3211
                            last_score= score;
3212
                            last_run= run;
3213
                            last_level= level-64;
3214
                            last_i= i+1;
3215
                        }
3216
                    }
3217
                }
3218
            }
3219
        }
3220

    
3221
        score_tab[i+1]= best_score;
3222

    
3223
        //Note: there is a vlc code in mpeg4 which is 1 bit shorter then another one with a shorter run and the same level
3224
        if(last_non_zero <= 27){
3225
            for(; survivor_count; survivor_count--){
3226
                if(score_tab[ survivor[survivor_count-1] ] <= best_score)
3227
                    break;
3228
            }
3229
        }else{
3230
            for(; survivor_count; survivor_count--){
3231
                if(score_tab[ survivor[survivor_count-1] ] <= best_score + lambda)
3232
                    break;
3233
            }
3234
        }
3235

    
3236
        survivor[ survivor_count++ ]= i+1;
3237
    }
3238

    
3239
    if(s->out_format != FMT_H263){
3240
        last_score= 256*256*256*120;
3241
        for(i= survivor[0]; i<=last_non_zero + 1; i++){
3242
            int score= score_tab[i];
3243
            if(i) score += lambda*2; //FIXME exacter?
3244

    
3245
            if(score < last_score){
3246
                last_score= score;
3247
                last_i= i;
3248
                last_level= level_tab[i];
3249
                last_run= run_tab[i];
3250
            }
3251
        }
3252
    }
3253

    
3254
    s->coded_score[n] = last_score;
3255

    
3256
    dc= FFABS(block[0]);
3257
    last_non_zero= last_i - 1;
3258
    memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3259

    
3260
    if(last_non_zero < start_i)
3261
        return last_non_zero;
3262

    
3263
    if(last_non_zero == 0 && start_i == 0){
3264
        int best_level= 0;
3265
        int best_score= dc * dc;
3266

    
3267
        for(i=0; i<coeff_count[0]; i++){
3268
            int level= coeff[i][0];
3269
            int alevel= FFABS(level);
3270
            int unquant_coeff, score, distortion;
3271

    
3272
            if(s->out_format == FMT_H263){
3273
                    unquant_coeff= (alevel*qmul + qadd)>>3;
3274
            }else{ //MPEG1
3275
                    unquant_coeff = (((  alevel  << 1) + 1) * qscale * ((int) s->inter_matrix[0])) >> 4;
3276
                    unquant_coeff =   (unquant_coeff - 1) | 1;
3277
            }
3278
            unquant_coeff = (unquant_coeff + 4) >> 3;
3279
            unquant_coeff<<= 3 + 3;
3280

    
3281
            distortion= (unquant_coeff - dc) * (unquant_coeff - dc);
3282
            level+=64;
3283
            if((level&(~127)) == 0) score= distortion + last_length[UNI_AC_ENC_INDEX(0, level)]*lambda;
3284
            else                    score= distortion + esc_length*lambda;
3285

    
3286
            if(score < best_score){
3287
                best_score= score;
3288
                best_level= level - 64;
3289
            }
3290
        }
3291
        block[0]= best_level;
3292
        s->coded_score[n] = best_score - dc*dc;
3293
        if(best_level == 0) return -1;
3294
        else                return last_non_zero;
3295
    }
3296

    
3297
    i= last_i;
3298
    assert(last_level);
3299

    
3300
    block[ perm_scantable[last_non_zero] ]= last_level;
3301
    i -= last_run + 1;
3302

    
3303
    for(; i>start_i; i -= run_tab[i] + 1){
3304
        block[ perm_scantable[i-1] ]= level_tab[i];
3305
    }
3306

    
3307
    return last_non_zero;
3308
}
3309

    
3310
//#define REFINE_STATS 1
3311
static int16_t basis[64][64];
3312

    
3313
static void build_basis(uint8_t *perm){
3314
    int i, j, x, y;
3315
    emms_c();
3316
    for(i=0; i<8; i++){
3317
        for(j=0; j<8; j++){
3318
            for(y=0; y<8; y++){
3319
                for(x=0; x<8; x++){
3320
                    double s= 0.25*(1<<BASIS_SHIFT);
3321
                    int index= 8*i + j;
3322
                    int perm_index= perm[index];
3323
                    if(i==0) s*= sqrt(0.5);
3324
                    if(j==0) s*= sqrt(0.5);
3325
                    basis[perm_index][8*x + y]= lrintf(s * cos((M_PI/8.0)*i*(x+0.5)) * cos((M_PI/8.0)*j*(y+0.5)));
3326
                }
3327
            }
3328
        }
3329
    }
3330
}
3331

    
3332
static int dct_quantize_refine(MpegEncContext *s, //FIXME breaks denoise?
3333
                        DCTELEM *block, int16_t *weight, DCTELEM *orig,
3334
                        int n, int qscale){
3335
    int16_t rem[64];
3336
    LOCAL_ALIGNED_16(DCTELEM, d1, [64]);
3337
    const uint8_t *scantable= s->intra_scantable.scantable;
3338
    const uint8_t *perm_scantable= s->intra_scantable.permutated;
3339
//    unsigned int threshold1, threshold2;
3340
//    int bias=0;
3341
    int run_tab[65];
3342
    int prev_run=0;
3343
    int prev_level=0;
3344
    int qmul, qadd, start_i, last_non_zero, i, dc;
3345
    uint8_t * length;
3346
    uint8_t * last_length;
3347
    int lambda;
3348
    int rle_index, run, q = 1, sum; //q is only used when s->mb_intra is true
3349
#ifdef REFINE_STATS
3350
static int count=0;
3351
static int after_last=0;
3352
static int to_zero=0;
3353
static int from_zero=0;
3354
static int raise=0;
3355
static int lower=0;
3356
static int messed_sign=0;
3357
#endif
3358

    
3359
    if(basis[0][0] == 0)
3360
        build_basis(s->dsp.idct_permutation);
3361

    
3362
    qmul= qscale*2;
3363
    qadd= (qscale-1)|1;
3364
    if (s->mb_intra) {
3365
        if (!s->h263_aic) {
3366
            if (n < 4)
3367
                q = s->y_dc_scale;
3368
            else
3369
                q = s->c_dc_scale;
3370
        } else{
3371
            /* For AIC we skip quant/dequant of INTRADC */
3372
            q = 1;
3373
            qadd=0;
3374
        }
3375
        q <<= RECON_SHIFT-3;
3376
        /* note: block[0] is assumed to be positive */
3377
        dc= block[0]*q;
3378
//        block[0] = (block[0] + (q >> 1)) / q;
3379
        start_i = 1;
3380
//        if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3381
//            bias= 1<<(QMAT_SHIFT-1);
3382
        length     = s->intra_ac_vlc_length;
3383
        last_length= s->intra_ac_vlc_last_length;
3384
    } else {
3385
        dc= 0;
3386
        start_i = 0;
3387
        length     = s->inter_ac_vlc_length;
3388
        last_length= s->inter_ac_vlc_last_length;
3389
    }
3390
    last_non_zero = s->block_last_index[n];
3391

    
3392
#ifdef REFINE_STATS
3393
{START_TIMER
3394
#endif
3395
    dc += (1<<(RECON_SHIFT-1));
3396
    for(i=0; i<64; i++){
3397
        rem[i]= dc - (orig[i]<<RECON_SHIFT); //FIXME  use orig dirrectly instead of copying to rem[]
3398
    }
3399
#ifdef REFINE_STATS
3400
STOP_TIMER("memset rem[]")}
3401
#endif
3402
    sum=0;
3403
    for(i=0; i<64; i++){
3404
        int one= 36;
3405
        int qns=4;
3406
        int w;
3407

    
3408
        w= FFABS(weight[i]) + qns*one;
3409
        w= 15 + (48*qns*one + w/2)/w; // 16 .. 63
3410

    
3411
        weight[i] = w;
3412
//        w=weight[i] = (63*qns + (w/2)) / w;
3413

    
3414
        assert(w>0);
3415
        assert(w<(1<<6));
3416
        sum += w*w;
3417
    }
3418
    lambda= sum*(uint64_t)s->lambda2 >> (FF_LAMBDA_SHIFT - 6 + 6 + 6 + 6);
3419
#ifdef REFINE_STATS
3420
{START_TIMER
3421
#endif
3422
    run=0;
3423
    rle_index=0;
3424
    for(i=start_i; i<=last_non_zero; i++){
3425
        int j= perm_scantable[i];
3426
        const int level= block[j];
3427
        int coeff;
3428

    
3429
        if(level){
3430
            if(level<0) coeff= qmul*level - qadd;
3431
            else        coeff= qmul*level + qadd;
3432
            run_tab[rle_index++]=run;
3433
            run=0;
3434

    
3435
            s->dsp.add_8x8basis(rem, basis[j], coeff);
3436
        }else{
3437
            run++;
3438
        }
3439
    }
3440
#ifdef REFINE_STATS
3441
if(last_non_zero>0){
3442
STOP_TIMER("init rem[]")
3443
}
3444
}
3445

    
3446
{START_TIMER
3447
#endif
3448
    for(;;){
3449
        int best_score=s->dsp.try_8x8basis(rem, weight, basis[0], 0);
3450
        int best_coeff=0;
3451
        int best_change=0;
3452
        int run2, best_unquant_change=0, analyze_gradient;
3453
#ifdef REFINE_STATS
3454
{START_TIMER
3455
#endif
3456
        analyze_gradient = last_non_zero > 2 || s->avctx->quantizer_noise_shaping >= 3;
3457

    
3458
        if(analyze_gradient){
3459
#ifdef REFINE_STATS
3460
{START_TIMER
3461
#endif
3462
            for(i=0; i<64; i++){
3463
                int w= weight[i];
3464

    
3465
                d1[i] = (rem[i]*w*w + (1<<(RECON_SHIFT+12-1)))>>(RECON_SHIFT+12);
3466
            }
3467
#ifdef REFINE_STATS
3468
STOP_TIMER("rem*w*w")}
3469
{START_TIMER
3470
#endif
3471
            s->dsp.fdct(d1);
3472
#ifdef REFINE_STATS
3473
STOP_TIMER("dct")}
3474
#endif
3475
        }
3476

    
3477
        if(start_i){
3478
            const int level= block[0];
3479
            int change, old_coeff;
3480

    
3481
            assert(s->mb_intra);
3482

    
3483
            old_coeff= q*level;
3484

    
3485
            for(change=-1; change<=1; change+=2){
3486
                int new_level= level + change;
3487
                int score, new_coeff;
3488

    
3489
                new_coeff= q*new_level;
3490
                if(new_coeff >= 2048 || new_coeff < 0)
3491
                    continue;
3492

    
3493
                score= s->dsp.try_8x8basis(rem, weight, basis[0], new_coeff - old_coeff);
3494
                if(score<best_score){
3495
                    best_score= score;
3496
                    best_coeff= 0;
3497
                    best_change= change;
3498
                    best_unquant_change= new_coeff - old_coeff;
3499
                }
3500
            }
3501
        }
3502

    
3503
        run=0;
3504
        rle_index=0;
3505
        run2= run_tab[rle_index++];
3506
        prev_level=0;
3507
        prev_run=0;
3508

    
3509
        for(i=start_i; i<64; i++){
3510
            int j= perm_scantable[i];
3511
            const int level= block[j];
3512
            int change, old_coeff;
3513

    
3514
            if(s->avctx->quantizer_noise_shaping < 3 && i > last_non_zero + 1)
3515
                break;
3516

    
3517
            if(level){
3518
                if(level<0) old_coeff= qmul*level - qadd;
3519
                else        old_coeff= qmul*level + qadd;
3520
                run2= run_tab[rle_index++]; //FIXME ! maybe after last
3521
            }else{
3522
                old_coeff=0;
3523
                run2--;
3524
                assert(run2>=0 || i >= last_non_zero );
3525
            }
3526

    
3527
            for(change=-1; change<=1; change+=2){
3528
                int new_level= level + change;
3529
                int score, new_coeff, unquant_change;
3530

    
3531
                score=0;
3532
                if(s->avctx->quantizer_noise_shaping < 2 && FFABS(new_level) > FFABS(level))
3533
                   continue;
3534

    
3535
                if(new_level){
3536
                    if(new_level<0) new_coeff= qmul*new_level - qadd;
3537
                    else            new_coeff= qmul*new_level + qadd;
3538
                    if(new_coeff >= 2048 || new_coeff <= -2048)
3539
                        continue;
3540
                    //FIXME check for overflow
3541

    
3542
                    if(level){
3543
                        if(level < 63 && level > -63){
3544
                            if(i < last_non_zero)
3545
                                score +=   length[UNI_AC_ENC_INDEX(run, new_level+64)]
3546
                                         - length[UNI_AC_ENC_INDEX(run, level+64)];
3547
                            else
3548
                                score +=   last_length[UNI_AC_ENC_INDEX(run, new_level+64)]
3549
                                         - last_length[UNI_AC_ENC_INDEX(run, level+64)];
3550
                        }
3551
                    }else{
3552
                        assert(FFABS(new_level)==1);
3553

    
3554
                        if(analyze_gradient){
3555
                            int g= d1[ scantable[i] ];
3556
                            if(g && (g^new_level) >= 0)
3557
                                continue;
3558
                        }
3559

    
3560
                        if(i < last_non_zero){
3561
                            int next_i= i + run2 + 1;
3562
                            int next_level= block[ perm_scantable[next_i] ] + 64;
3563

    
3564
                            if(next_level&(~127))
3565
                                next_level= 0;
3566

    
3567
                            if(next_i < last_non_zero)
3568
                                score +=   length[UNI_AC_ENC_INDEX(run, 65)]
3569
                                         + length[UNI_AC_ENC_INDEX(run2, next_level)]
3570
                                         - length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3571
                            else
3572
                                score +=  length[UNI_AC_ENC_INDEX(run, 65)]
3573
                                        + last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3574
                                        - last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3575
                        }else{
3576
                            score += last_length[UNI_AC_ENC_INDEX(run, 65)];
3577
                            if(prev_level){
3578
                                score +=  length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3579
                                        - last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3580
                            }
3581
                        }
3582
                    }
3583
                }else{
3584
                    new_coeff=0;
3585
                    assert(FFABS(level)==1);
3586

    
3587
                    if(i < last_non_zero){
3588
                        int next_i= i + run2 + 1;
3589
                        int next_level= block[ perm_scantable[next_i] ] + 64;
3590

    
3591
                        if(next_level&(~127))
3592
                            next_level= 0;
3593

    
3594
                        if(next_i < last_non_zero)
3595
                            score +=   length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3596
                                     - length[UNI_AC_ENC_INDEX(run2, next_level)]
3597
                                     - length[UNI_AC_ENC_INDEX(run, 65)];
3598
                        else
3599
                            score +=   last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3600
                                     - last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3601
                                     - length[UNI_AC_ENC_INDEX(run, 65)];
3602
                    }else{
3603
                        score += -last_length[UNI_AC_ENC_INDEX(run, 65)];
3604
                        if(prev_level){
3605
                            score +=  last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3606
                                    - length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3607
                        }
3608
                    }
3609
                }
3610

    
3611
                score *= lambda;
3612

    
3613
                unquant_change= new_coeff - old_coeff;
3614
                assert((score < 100*lambda && score > -100*lambda) || lambda==0);
3615

    
3616
                score+= s->dsp.try_8x8basis(rem, weight, basis[j], unquant_change);
3617
                if(score<best_score){
3618
                    best_score= score;
3619
                    best_coeff= i;
3620
                    best_change= change;
3621
                    best_unquant_change= unquant_change;
3622
                }
3623
            }
3624
            if(level){
3625
                prev_level= level + 64;
3626
                if(prev_level&(~127))
3627
                    prev_level= 0;
3628
                prev_run= run;
3629
                run=0;
3630
            }else{
3631
                run++;
3632
            }
3633
        }
3634
#ifdef REFINE_STATS
3635
STOP_TIMER("iterative step")}
3636
#endif
3637

    
3638
        if(best_change){
3639
            int j= perm_scantable[ best_coeff ];
3640

    
3641
            block[j] += best_change;
3642

    
3643
            if(best_coeff > last_non_zero){
3644
                last_non_zero= best_coeff;
3645
                assert(block[j]);
3646
#ifdef REFINE_STATS
3647
after_last++;
3648
#endif
3649
            }else{
3650
#ifdef REFINE_STATS
3651
if(block[j]){
3652
    if(block[j] - best_change){
3653
        if(FFABS(block[j]) > FFABS(block[j] - best_change)){
3654
            raise++;
3655
        }else{
3656
            lower++;
3657
        }
3658
    }else{
3659
        from_zero++;
3660
    }
3661
}else{
3662
    to_zero++;
3663
}
3664
#endif
3665
                for(; last_non_zero>=start_i; last_non_zero--){
3666
                    if(block[perm_scantable[last_non_zero]])
3667
                        break;
3668
                }
3669
            }
3670
#ifdef REFINE_STATS
3671
count++;
3672
if(256*256*256*64 % count == 0){
3673
    printf("after_last:%d to_zero:%d from_zero:%d raise:%d lower:%d sign:%d xyp:%d/%d/%d\n", after_last, to_zero, from_zero, raise, lower, messed_sign, s->mb_x, s->mb_y, s->picture_number);
3674
}
3675
#endif
3676
            run=0;
3677
            rle_index=0;
3678
            for(i=start_i; i<=last_non_zero; i++){
3679
                int j= perm_scantable[i];
3680
                const int level= block[j];
3681

    
3682
                 if(level){
3683
                     run_tab[rle_index++]=run;
3684
                     run=0;
3685
                 }else{
3686
                     run++;
3687
                 }
3688
            }
3689

    
3690
            s->dsp.add_8x8basis(rem, basis[j], best_unquant_change);
3691
        }else{
3692
            break;
3693
        }
3694
    }
3695
#ifdef REFINE_STATS
3696
if(last_non_zero>0){
3697
STOP_TIMER("iterative search")
3698
}
3699
}
3700
#endif
3701

    
3702
    return last_non_zero;
3703
}
3704

    
3705
int dct_quantize_c(MpegEncContext *s,
3706
                        DCTELEM *block, int n,
3707
                        int qscale, int *overflow)
3708
{
3709
    int i, j, level, last_non_zero, q, start_i;
3710
    const int *qmat;
3711
    const uint8_t *scantable= s->intra_scantable.scantable;
3712
    int bias;
3713
    int max=0;
3714
    unsigned int threshold1, threshold2;
3715

    
3716
    s->dsp.fdct (block);
3717

    
3718
    if(s->dct_error_sum)
3719
        s->denoise_dct(s, block);
3720

    
3721
    if (s->mb_intra) {
3722
        if (!s->h263_aic) {
3723
            if (n < 4)
3724
                q = s->y_dc_scale;
3725
            else
3726
                q = s->c_dc_scale;
3727
            q = q << 3;
3728
        } else
3729
            /* For AIC we skip quant/dequant of INTRADC */
3730
            q = 1 << 3;
3731

    
3732
        /* note: block[0] is assumed to be positive */
3733
        block[0] = (block[0] + (q >> 1)) / q;
3734
        start_i = 1;
3735
        last_non_zero = 0;
3736
        qmat = s->q_intra_matrix[qscale];
3737
        bias= s->intra_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3738
    } else {
3739
        start_i = 0;
3740
        last_non_zero = -1;
3741
        qmat = s->q_inter_matrix[qscale];
3742
        bias= s->inter_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3743
    }
3744
    threshold1= (1<<QMAT_SHIFT) - bias - 1;
3745
    threshold2= (threshold1<<1);
3746
    for(i=63;i>=start_i;i--) {
3747
        j = scantable[i];
3748
        level = block[j] * qmat[j];
3749

    
3750
        if(((unsigned)(level+threshold1))>threshold2){
3751
            last_non_zero = i;
3752
            break;
3753
        }else{
3754
            block[j]=0;
3755
        }
3756
    }
3757
    for(i=start_i; i<=last_non_zero; i++) {
3758
        j = scantable[i];
3759
        level = block[j] * qmat[j];
3760

    
3761
//        if(   bias+level >= (1<<QMAT_SHIFT)
3762
//           || bias-level >= (1<<QMAT_SHIFT)){
3763
        if(((unsigned)(level+threshold1))>threshold2){
3764
            if(level>0){
3765
                level= (bias + level)>>QMAT_SHIFT;
3766
                block[j]= level;
3767
            }else{
3768
                level= (bias - level)>>QMAT_SHIFT;
3769
                block[j]= -level;
3770
            }
3771
            max |=level;
3772
        }else{
3773
            block[j]=0;
3774
        }
3775
    }
3776
    *overflow= s->max_qcoeff < max; //overflow might have happened
3777

    
3778
    /* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */
3779
    if (s->dsp.idct_permutation_type != FF_NO_IDCT_PERM)
3780
        ff_block_permute(block, s->dsp.idct_permutation, scantable, last_non_zero);
3781

    
3782
    return last_non_zero;
3783
}
3784

    
3785
AVCodec ff_h263_encoder = {
3786
    "h263",
3787
    AVMEDIA_TYPE_VIDEO,
3788
    CODEC_ID_H263,
3789
    sizeof(MpegEncContext),
3790
    MPV_encode_init,
3791
    MPV_encode_picture,
3792
    MPV_encode_end,
3793
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3794
    .long_name= NULL_IF_CONFIG_SMALL("H.263 / H.263-1996"),
3795
};
3796

    
3797
AVCodec ff_h263p_encoder = {
3798
    "h263p",
3799
    AVMEDIA_TYPE_VIDEO,
3800
    CODEC_ID_H263P,
3801
    sizeof(MpegEncContext),
3802
    MPV_encode_init,
3803
    MPV_encode_picture,
3804
    MPV_encode_end,
3805
    .capabilities = CODEC_CAP_SLICE_THREADS,
3806
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3807
    .long_name= NULL_IF_CONFIG_SMALL("H.263+ / H.263-1998 / H.263 version 2"),
3808
};
3809

    
3810
AVCodec ff_msmpeg4v1_encoder = {
3811
    "msmpeg4v1",
3812
    AVMEDIA_TYPE_VIDEO,
3813
    CODEC_ID_MSMPEG4V1,
3814
    sizeof(MpegEncContext),
3815
    MPV_encode_init,
3816
    MPV_encode_picture,
3817
    MPV_encode_end,
3818
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3819
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 1"),
3820
};
3821

    
3822
AVCodec ff_msmpeg4v2_encoder = {
3823
    "msmpeg4v2",
3824
    AVMEDIA_TYPE_VIDEO,
3825
    CODEC_ID_MSMPEG4V2,
3826
    sizeof(MpegEncContext),
3827
    MPV_encode_init,
3828
    MPV_encode_picture,
3829
    MPV_encode_end,
3830
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3831
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 2"),
3832
};
3833

    
3834
AVCodec ff_msmpeg4v3_encoder = {
3835
    "msmpeg4",
3836
    AVMEDIA_TYPE_VIDEO,
3837
    CODEC_ID_MSMPEG4V3,
3838
    sizeof(MpegEncContext),
3839
    MPV_encode_init,
3840
    MPV_encode_picture,
3841
    MPV_encode_end,
3842
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3843
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 3"),
3844
};
3845

    
3846
AVCodec ff_wmv1_encoder = {
3847
    "wmv1",
3848
    AVMEDIA_TYPE_VIDEO,
3849
    CODEC_ID_WMV1,
3850
    sizeof(MpegEncContext),
3851
    MPV_encode_init,
3852
    MPV_encode_picture,
3853
    MPV_encode_end,
3854
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3855
    .long_name= NULL_IF_CONFIG_SMALL("Windows Media Video 7"),
3856
};