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ffmpeg / libavcodec / mpegvideo_enc.c @ b2a91770

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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
 *
10
 * 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
 *
15
 * 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
22
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23
 */
24

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

    
30
#include "avcodec.h"
31
#include "dsputil.h"
32
#include "mpegvideo.h"
33
#include "mpegvideo_common.h"
34
#include "mjpegenc.h"
35
#include "msmpeg4.h"
36
#include "h263.h"
37
#include "faandct.h"
38
#include <limits.h>
39

    
40
//#undef NDEBUG
41
//#include <assert.h>
42

    
43
static int encode_picture(MpegEncContext *s, int picture_number);
44
static int dct_quantize_refine(MpegEncContext *s, DCTELEM *block, int16_t *weight, DCTELEM *orig, int n, int qscale);
45
static int sse_mb(MpegEncContext *s);
46

    
47
/* enable all paranoid tests for rounding, overflows, etc... */
48
//#define PARANOID
49

    
50
//#define DEBUG
51

    
52
static const uint16_t aanscales[64] = {
53
    /* precomputed values scaled up by 14 bits */
54
    16384, 22725, 21407, 19266, 16384, 12873,  8867,  4520,
55
    22725, 31521, 29692, 26722, 22725, 17855, 12299,  6270,
56
    21407, 29692, 27969, 25172, 21407, 16819, 11585,  5906,
57
    19266, 26722, 25172, 22654, 19266, 15137, 10426,  5315,
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    16384, 22725, 21407, 19266, 16384, 12873,  8867,  4520,
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    12873, 17855, 16819, 15137, 12873, 10114,  6967,  3552,
60
    8867 , 12299, 11585, 10426,  8867,  6967,  4799,  2446,
61
    4520 ,  6270,  5906,  5315,  4520,  3552,  2446,  1247
62
};
63

    
64
static uint8_t default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
65
static uint8_t default_fcode_tab[MAX_MV*2+1];
66

    
67
void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
68
                           const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra)
69
{
70
    int qscale;
71
    int shift=0;
72

    
73
    for(qscale=qmin; qscale<=qmax; qscale++){
74
        int i;
75
        if (dsp->fdct == ff_jpeg_fdct_islow
76
#ifdef FAAN_POSTSCALE
77
            || dsp->fdct == ff_faandct
78
#endif
79
            ) {
80
            for(i=0;i<64;i++) {
81
                const int j= dsp->idct_permutation[i];
82
                /* 16 <= qscale * quant_matrix[i] <= 7905 */
83
                /* 19952         <= aanscales[i] * qscale * quant_matrix[i]           <= 249205026 */
84
                /* (1<<36)/19952 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
85
                /* 3444240       >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= 275 */
86

    
87
                qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) /
88
                                (qscale * quant_matrix[j]));
89
            }
90
        } else if (dsp->fdct == fdct_ifast
91
#ifndef FAAN_POSTSCALE
92
                   || dsp->fdct == ff_faandct
93
#endif
94
                   ) {
95
            for(i=0;i<64;i++) {
96
                const int j= dsp->idct_permutation[i];
97
                /* 16 <= qscale * quant_matrix[i] <= 7905 */
98
                /* 19952         <= aanscales[i] * qscale * quant_matrix[i]           <= 249205026 */
99
                /* (1<<36)/19952 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
100
                /* 3444240       >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= 275 */
101

    
102
                qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) /
103
                                (aanscales[i] * qscale * quant_matrix[j]));
104
            }
105
        } else {
106
            for(i=0;i<64;i++) {
107
                const int j= dsp->idct_permutation[i];
108
                /* We can safely suppose that 16 <= quant_matrix[i] <= 255
109
                   So 16           <= qscale * quant_matrix[i]             <= 7905
110
                   so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
111
                   so 32768        >= (1<<19) / (qscale * quant_matrix[i]) >= 67
112
                */
113
                qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / (qscale * quant_matrix[j]));
114
//                qmat  [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
115
                qmat16[qscale][0][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[j]);
116

    
117
                if(qmat16[qscale][0][i]==0 || qmat16[qscale][0][i]==128*256) qmat16[qscale][0][i]=128*256-1;
118
                qmat16[qscale][1][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][0][i]);
119
            }
120
        }
121

    
122
        for(i=intra; i<64; i++){
123
            int64_t max= 8191;
124
            if (dsp->fdct == fdct_ifast
125
#ifndef FAAN_POSTSCALE
126
                   || dsp->fdct == ff_faandct
127
#endif
128
                   ) {
129
                max= (8191LL*aanscales[i]) >> 14;
130
            }
131
            while(((max * qmat[qscale][i]) >> shift) > INT_MAX){
132
                shift++;
133
            }
134
        }
135
    }
136
    if(shift){
137
        av_log(NULL, AV_LOG_INFO, "Warning, QMAT_SHIFT is larger than %d, overflows possible\n", QMAT_SHIFT - shift);
138
    }
139
}
140

    
141
static inline void update_qscale(MpegEncContext *s){
142
    s->qscale= (s->lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
143
    s->qscale= av_clip(s->qscale, s->avctx->qmin, s->avctx->qmax);
144

    
145
    s->lambda2= (s->lambda*s->lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
146
}
147

    
148
void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix){
149
    int i;
150

    
151
    if(matrix){
152
        put_bits(pb, 1, 1);
153
        for(i=0;i<64;i++) {
154
            put_bits(pb, 8, matrix[ ff_zigzag_direct[i] ]);
155
        }
156
    }else
157
        put_bits(pb, 1, 0);
158
}
159

    
160
static void copy_picture_attributes(MpegEncContext *s, AVFrame *dst, AVFrame *src){
161
    int i;
162

    
163
    dst->pict_type              = src->pict_type;
164
    dst->quality                = src->quality;
165
    dst->coded_picture_number   = src->coded_picture_number;
166
    dst->display_picture_number = src->display_picture_number;
167
//    dst->reference              = src->reference;
168
    dst->pts                    = src->pts;
169
    dst->interlaced_frame       = src->interlaced_frame;
170
    dst->top_field_first        = src->top_field_first;
171

    
172
    if(s->avctx->me_threshold){
173
        if(!src->motion_val[0])
174
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_val not set!\n");
175
        if(!src->mb_type)
176
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.mb_type not set!\n");
177
        if(!src->ref_index[0])
178
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.ref_index not set!\n");
179
        if(src->motion_subsample_log2 != dst->motion_subsample_log2)
180
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_subsample_log2 doesn't match! (%d!=%d)\n",
181
            src->motion_subsample_log2, dst->motion_subsample_log2);
182

    
183
        memcpy(dst->mb_type, src->mb_type, s->mb_stride * s->mb_height * sizeof(dst->mb_type[0]));
184

    
185
        for(i=0; i<2; i++){
186
            int stride= ((16*s->mb_width )>>src->motion_subsample_log2) + 1;
187
            int height= ((16*s->mb_height)>>src->motion_subsample_log2);
188

    
189
            if(src->motion_val[i] && src->motion_val[i] != dst->motion_val[i]){
190
                memcpy(dst->motion_val[i], src->motion_val[i], 2*stride*height*sizeof(int16_t));
191
            }
192
            if(src->ref_index[i] && src->ref_index[i] != dst->ref_index[i]){
193
                memcpy(dst->ref_index[i], src->ref_index[i], s->b8_stride*2*s->mb_height*sizeof(int8_t));
194
            }
195
        }
196
    }
197
}
198

    
199
static void update_duplicate_context_after_me(MpegEncContext *dst, MpegEncContext *src){
200
#define COPY(a) dst->a= src->a
201
    COPY(pict_type);
202
    COPY(current_picture);
203
    COPY(f_code);
204
    COPY(b_code);
205
    COPY(qscale);
206
    COPY(lambda);
207
    COPY(lambda2);
208
    COPY(picture_in_gop_number);
209
    COPY(gop_picture_number);
210
    COPY(frame_pred_frame_dct); //FIXME don't set in encode_header
211
    COPY(progressive_frame); //FIXME don't set in encode_header
212
    COPY(partitioned_frame); //FIXME don't set in encode_header
213
#undef COPY
214
}
215

    
216
/**
217
 * sets the given MpegEncContext to defaults for encoding.
218
 * the changed fields will not depend upon the prior state of the MpegEncContext.
219
 */
220
static void MPV_encode_defaults(MpegEncContext *s){
221
    int i;
222
    MPV_common_defaults(s);
223

    
224
    for(i=-16; i<16; i++){
225
        default_fcode_tab[i + MAX_MV]= 1;
226
    }
227
    s->me.mv_penalty= default_mv_penalty;
228
    s->fcode_tab= default_fcode_tab;
229
}
230

    
231
/* init video encoder */
232
int MPV_encode_init(AVCodecContext *avctx)
233
{
234
    MpegEncContext *s = avctx->priv_data;
235
    int i;
236
    int chroma_h_shift, chroma_v_shift;
237

    
238
    MPV_encode_defaults(s);
239

    
240
    switch (avctx->codec_id) {
241
    case CODEC_ID_MPEG2VIDEO:
242
        if(avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P){
243
            av_log(avctx, AV_LOG_ERROR, "only YUV420 and YUV422 are supported\n");
244
            return -1;
245
        }
246
        break;
247
    case CODEC_ID_LJPEG:
248
    case CODEC_ID_MJPEG:
249
        if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P &&
250
           ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P) || avctx->strict_std_compliance>FF_COMPLIANCE_INOFFICIAL)){
251
            av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n");
252
            return -1;
253
        }
254
        break;
255
    default:
256
        if(avctx->pix_fmt != PIX_FMT_YUV420P){
257
            av_log(avctx, AV_LOG_ERROR, "only YUV420 is supported\n");
258
            return -1;
259
        }
260
    }
261

    
262
    switch (avctx->pix_fmt) {
263
    case PIX_FMT_YUVJ422P:
264
    case PIX_FMT_YUV422P:
265
        s->chroma_format = CHROMA_422;
266
        break;
267
    case PIX_FMT_YUVJ420P:
268
    case PIX_FMT_YUV420P:
269
    default:
270
        s->chroma_format = CHROMA_420;
271
        break;
272
    }
273

    
274
    s->bit_rate = avctx->bit_rate;
275
    s->width = avctx->width;
276
    s->height = avctx->height;
277
    if(avctx->gop_size > 600 && avctx->strict_std_compliance>FF_COMPLIANCE_EXPERIMENTAL){
278
        av_log(avctx, AV_LOG_ERROR, "Warning keyframe interval too large! reducing it ...\n");
279
        avctx->gop_size=600;
280
    }
281
    s->gop_size = avctx->gop_size;
282
    s->avctx = avctx;
283
    s->flags= avctx->flags;
284
    s->flags2= avctx->flags2;
285
    s->max_b_frames= avctx->max_b_frames;
286
    s->codec_id= avctx->codec->id;
287
    s->luma_elim_threshold  = avctx->luma_elim_threshold;
288
    s->chroma_elim_threshold= avctx->chroma_elim_threshold;
289
    s->strict_std_compliance= avctx->strict_std_compliance;
290
    s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
291
    s->quarter_sample= (avctx->flags & CODEC_FLAG_QPEL)!=0;
292
    s->mpeg_quant= avctx->mpeg_quant;
293
    s->rtp_mode= !!avctx->rtp_payload_size;
294
    s->intra_dc_precision= avctx->intra_dc_precision;
295
    s->user_specified_pts = AV_NOPTS_VALUE;
296

    
297
    if (s->gop_size <= 1) {
298
        s->intra_only = 1;
299
        s->gop_size = 12;
300
    } else {
301
        s->intra_only = 0;
302
    }
303

    
304
    s->me_method = avctx->me_method;
305

    
306
    /* Fixed QSCALE */
307
    s->fixed_qscale = !!(avctx->flags & CODEC_FLAG_QSCALE);
308

    
309
    s->adaptive_quant= (   s->avctx->lumi_masking
310
                        || s->avctx->dark_masking
311
                        || s->avctx->temporal_cplx_masking
312
                        || s->avctx->spatial_cplx_masking
313
                        || s->avctx->p_masking
314
                        || s->avctx->border_masking
315
                        || (s->flags&CODEC_FLAG_QP_RD))
316
                       && !s->fixed_qscale;
317

    
318
    s->obmc= !!(s->flags & CODEC_FLAG_OBMC);
319
    s->loop_filter= !!(s->flags & CODEC_FLAG_LOOP_FILTER);
320
    s->alternate_scan= !!(s->flags & CODEC_FLAG_ALT_SCAN);
321
    s->intra_vlc_format= !!(s->flags2 & CODEC_FLAG2_INTRA_VLC);
322
    s->q_scale_type= !!(s->flags2 & CODEC_FLAG2_NON_LINEAR_QUANT);
323

    
324
    if(avctx->rc_max_rate && !avctx->rc_buffer_size){
325
        av_log(avctx, AV_LOG_ERROR, "a vbv buffer size is needed, for encoding with a maximum bitrate\n");
326
        return -1;
327
    }
328

    
329
    if(avctx->rc_min_rate && avctx->rc_max_rate != avctx->rc_min_rate){
330
        av_log(avctx, AV_LOG_INFO, "Warning min_rate > 0 but min_rate != max_rate isn't recommended!\n");
331
    }
332

    
333
    if(avctx->rc_min_rate && avctx->rc_min_rate > avctx->bit_rate){
334
        av_log(avctx, AV_LOG_ERROR, "bitrate below min bitrate\n");
335
        return -1;
336
    }
337

    
338
    if(avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate){
339
        av_log(avctx, AV_LOG_INFO, "bitrate above max bitrate\n");
340
        return -1;
341
    }
342

    
343
    if(avctx->rc_max_rate && avctx->rc_max_rate == avctx->bit_rate && avctx->rc_max_rate != avctx->rc_min_rate){
344
        av_log(avctx, AV_LOG_INFO, "impossible bitrate constraints, this will fail\n");
345
    }
346

    
347
    if(avctx->rc_buffer_size && avctx->bit_rate*av_q2d(avctx->time_base) > avctx->rc_buffer_size){
348
        av_log(avctx, AV_LOG_ERROR, "VBV buffer too small for bitrate\n");
349
        return -1;
350
    }
351

    
352
    if(avctx->bit_rate*av_q2d(avctx->time_base) > avctx->bit_rate_tolerance){
353
        av_log(avctx, AV_LOG_ERROR, "bitrate tolerance too small for bitrate\n");
354
        return -1;
355
    }
356

    
357
    if(   s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate
358
       && (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO)
359
       && 90000LL * (avctx->rc_buffer_size-1) > s->avctx->rc_max_rate*0xFFFFLL){
360

    
361
        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");
362
    }
363

    
364
    if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4
365
       && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P && s->codec_id != CODEC_ID_FLV1){
366
        av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n");
367
        return -1;
368
    }
369

    
370
    if(s->obmc && s->avctx->mb_decision != FF_MB_DECISION_SIMPLE){
371
        av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with simple mb decision\n");
372
        return -1;
373
    }
374

    
375
    if(s->obmc && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P){
376
        av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with H263(+)\n");
377
        return -1;
378
    }
379

    
380
    if(s->quarter_sample && s->codec_id != CODEC_ID_MPEG4){
381
        av_log(avctx, AV_LOG_ERROR, "qpel not supported by codec\n");
382
        return -1;
383
    }
384

    
385
    if(s->data_partitioning && s->codec_id != CODEC_ID_MPEG4){
386
        av_log(avctx, AV_LOG_ERROR, "data partitioning not supported by codec\n");
387
        return -1;
388
    }
389

    
390
    if(s->max_b_frames && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO){
391
        av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n");
392
        return -1;
393
    }
394

    
395
    if((s->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN))
396
       && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG2VIDEO){
397
        av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n");
398
        return -1;
399
    }
400

    
401
    if(s->mpeg_quant && s->codec_id != CODEC_ID_MPEG4){ //FIXME mpeg2 uses that too
402
        av_log(avctx, AV_LOG_ERROR, "mpeg2 style quantization not supported by codec\n");
403
        return -1;
404
    }
405

    
406
    if((s->flags & CODEC_FLAG_CBP_RD) && !(s->flags & CODEC_FLAG_TRELLIS_QUANT)){
407
        av_log(avctx, AV_LOG_ERROR, "CBP RD needs trellis quant\n");
408
        return -1;
409
    }
410

    
411
    if((s->flags & CODEC_FLAG_QP_RD) && s->avctx->mb_decision != FF_MB_DECISION_RD){
412
        av_log(avctx, AV_LOG_ERROR, "QP RD needs mbd=2\n");
413
        return -1;
414
    }
415

    
416
    if(s->avctx->scenechange_threshold < 1000000000 && (s->flags & CODEC_FLAG_CLOSED_GOP)){
417
        av_log(avctx, AV_LOG_ERROR, "closed gop with scene change detection arent supported yet, set threshold to 1000000000\n");
418
        return -1;
419
    }
420

    
421
    if((s->flags2 & CODEC_FLAG2_INTRA_VLC) && s->codec_id != CODEC_ID_MPEG2VIDEO){
422
        av_log(avctx, AV_LOG_ERROR, "intra vlc table not supported by codec\n");
423
        return -1;
424
    }
425

    
426
    if(s->flags & CODEC_FLAG_LOW_DELAY){
427
        if (s->codec_id != CODEC_ID_MPEG2VIDEO && s->codec_id != CODEC_ID_MPEG1VIDEO){
428
            av_log(avctx, AV_LOG_ERROR, "low delay forcing is only available for mpeg1/2\n");
429
            return -1;
430
        }
431
        if (s->max_b_frames != 0){
432
            av_log(avctx, AV_LOG_ERROR, "b frames cannot be used with low delay\n");
433
            return -1;
434
        }
435
    }
436

    
437
    if(s->q_scale_type == 1){
438
        if(s->codec_id != CODEC_ID_MPEG2VIDEO){
439
            av_log(avctx, AV_LOG_ERROR, "non linear quant is only available for mpeg2\n");
440
            return -1;
441
        }
442
        if(avctx->qmax > 12){
443
            av_log(avctx, AV_LOG_ERROR, "non linear quant only supports qmax <= 12 currently\n");
444
            return -1;
445
        }
446
    }
447

    
448
    if(s->avctx->thread_count > 1 && s->codec_id != CODEC_ID_MPEG4
449
       && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO
450
       && (s->codec_id != CODEC_ID_H263P || !(s->flags & CODEC_FLAG_H263P_SLICE_STRUCT))){
451
        av_log(avctx, AV_LOG_ERROR, "multi threaded encoding not supported by codec\n");
452
        return -1;
453
    }
454

    
455
    if(s->avctx->thread_count > 1)
456
        s->rtp_mode= 1;
457

    
458
    if(!avctx->time_base.den || !avctx->time_base.num){
459
        av_log(avctx, AV_LOG_ERROR, "framerate not set\n");
460
        return -1;
461
    }
462

    
463
    i= (INT_MAX/2+128)>>8;
464
    if(avctx->me_threshold >= i){
465
        av_log(avctx, AV_LOG_ERROR, "me_threshold too large, max is %d\n", i - 1);
466
        return -1;
467
    }
468
    if(avctx->mb_threshold >= i){
469
        av_log(avctx, AV_LOG_ERROR, "mb_threshold too large, max is %d\n", i - 1);
470
        return -1;
471
    }
472

    
473
    if(avctx->b_frame_strategy && (avctx->flags&CODEC_FLAG_PASS2)){
474
        av_log(avctx, AV_LOG_INFO, "notice: b_frame_strategy only affects the first pass\n");
475
        avctx->b_frame_strategy = 0;
476
    }
477

    
478
    i= ff_gcd(avctx->time_base.den, avctx->time_base.num);
479
    if(i > 1){
480
        av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n");
481
        avctx->time_base.den /= i;
482
        avctx->time_base.num /= i;
483
//        return -1;
484
    }
485

    
486
    if(s->codec_id==CODEC_ID_MJPEG){
487
        s->intra_quant_bias= 1<<(QUANT_BIAS_SHIFT-1); //(a + x/2)/x
488
        s->inter_quant_bias= 0;
489
    }else if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO){
490
        s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x
491
        s->inter_quant_bias= 0;
492
    }else{
493
        s->intra_quant_bias=0;
494
        s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x
495
    }
496

    
497
    if(avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
498
        s->intra_quant_bias= avctx->intra_quant_bias;
499
    if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)
500
        s->inter_quant_bias= avctx->inter_quant_bias;
501

    
502
    avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift);
503

    
504
    if(avctx->codec_id == CODEC_ID_MPEG4 && s->avctx->time_base.den > (1<<16)-1){
505
        av_log(avctx, AV_LOG_ERROR, "timebase not supported by mpeg 4 standard\n");
506
        return -1;
507
    }
508
    s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1;
509

    
510
    switch(avctx->codec->id) {
511
    case CODEC_ID_MPEG1VIDEO:
512
        s->out_format = FMT_MPEG1;
513
        s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
514
        avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
515
        break;
516
    case CODEC_ID_MPEG2VIDEO:
517
        s->out_format = FMT_MPEG1;
518
        s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
519
        avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
520
        s->rtp_mode= 1;
521
        break;
522
    case CODEC_ID_LJPEG:
523
    case CODEC_ID_MJPEG:
524
        s->out_format = FMT_MJPEG;
525
        s->intra_only = 1; /* force intra only for jpeg */
526
        s->mjpeg_vsample[0] = 2;
527
        s->mjpeg_vsample[1] = 2>>chroma_v_shift;
528
        s->mjpeg_vsample[2] = 2>>chroma_v_shift;
529
        s->mjpeg_hsample[0] = 2;
530
        s->mjpeg_hsample[1] = 2>>chroma_h_shift;
531
        s->mjpeg_hsample[2] = 2>>chroma_h_shift;
532
        if (!(ENABLE_MJPEG_ENCODER || ENABLE_LJPEG_ENCODER)
533
            || ff_mjpeg_encode_init(s) < 0)
534
            return -1;
535
        avctx->delay=0;
536
        s->low_delay=1;
537
        break;
538
    case CODEC_ID_H261:
539
        if (!ENABLE_H261_ENCODER)  return -1;
540
        if (ff_h261_get_picture_format(s->width, s->height) < 0) {
541
            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);
542
            return -1;
543
        }
544
        s->out_format = FMT_H261;
545
        avctx->delay=0;
546
        s->low_delay=1;
547
        break;
548
    case CODEC_ID_H263:
549
        if (!ENABLE_H263_ENCODER)  return -1;
550
        if (h263_get_picture_format(s->width, s->height) == 7) {
551
            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);
552
            return -1;
553
        }
554
        s->out_format = FMT_H263;
555
        s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
556
        avctx->delay=0;
557
        s->low_delay=1;
558
        break;
559
    case CODEC_ID_H263P:
560
        s->out_format = FMT_H263;
561
        s->h263_plus = 1;
562
        /* Fx */
563
        s->umvplus = (avctx->flags & CODEC_FLAG_H263P_UMV) ? 1:0;
564
        s->h263_aic= (avctx->flags & CODEC_FLAG_AC_PRED) ? 1:0;
565
        s->modified_quant= s->h263_aic;
566
        s->alt_inter_vlc= (avctx->flags & CODEC_FLAG_H263P_AIV) ? 1:0;
567
        s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
568
        s->loop_filter= (avctx->flags & CODEC_FLAG_LOOP_FILTER) ? 1:0;
569
        s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
570
        s->h263_slice_structured= (s->flags & CODEC_FLAG_H263P_SLICE_STRUCT) ? 1:0;
571

    
572
        /* /Fx */
573
        /* These are just to be sure */
574
        avctx->delay=0;
575
        s->low_delay=1;
576
        break;
577
    case CODEC_ID_FLV1:
578
        s->out_format = FMT_H263;
579
        s->h263_flv = 2; /* format = 1; 11-bit codes */
580
        s->unrestricted_mv = 1;
581
        s->rtp_mode=0; /* don't allow GOB */
582
        avctx->delay=0;
583
        s->low_delay=1;
584
        break;
585
    case CODEC_ID_RV10:
586
        s->out_format = FMT_H263;
587
        avctx->delay=0;
588
        s->low_delay=1;
589
        break;
590
    case CODEC_ID_RV20:
591
        s->out_format = FMT_H263;
592
        avctx->delay=0;
593
        s->low_delay=1;
594
        s->modified_quant=1;
595
        s->h263_aic=1;
596
        s->h263_plus=1;
597
        s->loop_filter=1;
598
        s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
599
        break;
600
    case CODEC_ID_MPEG4:
601
        s->out_format = FMT_H263;
602
        s->h263_pred = 1;
603
        s->unrestricted_mv = 1;
604
        s->low_delay= s->max_b_frames ? 0 : 1;
605
        avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
606
        break;
607
    case CODEC_ID_MSMPEG4V1:
608
        s->out_format = FMT_H263;
609
        s->h263_msmpeg4 = 1;
610
        s->h263_pred = 1;
611
        s->unrestricted_mv = 1;
612
        s->msmpeg4_version= 1;
613
        avctx->delay=0;
614
        s->low_delay=1;
615
        break;
616
    case CODEC_ID_MSMPEG4V2:
617
        s->out_format = FMT_H263;
618
        s->h263_msmpeg4 = 1;
619
        s->h263_pred = 1;
620
        s->unrestricted_mv = 1;
621
        s->msmpeg4_version= 2;
622
        avctx->delay=0;
623
        s->low_delay=1;
624
        break;
625
    case CODEC_ID_MSMPEG4V3:
626
        s->out_format = FMT_H263;
627
        s->h263_msmpeg4 = 1;
628
        s->h263_pred = 1;
629
        s->unrestricted_mv = 1;
630
        s->msmpeg4_version= 3;
631
        s->flipflop_rounding=1;
632
        avctx->delay=0;
633
        s->low_delay=1;
634
        break;
635
    case CODEC_ID_WMV1:
636
        s->out_format = FMT_H263;
637
        s->h263_msmpeg4 = 1;
638
        s->h263_pred = 1;
639
        s->unrestricted_mv = 1;
640
        s->msmpeg4_version= 4;
641
        s->flipflop_rounding=1;
642
        avctx->delay=0;
643
        s->low_delay=1;
644
        break;
645
    case CODEC_ID_WMV2:
646
        s->out_format = FMT_H263;
647
        s->h263_msmpeg4 = 1;
648
        s->h263_pred = 1;
649
        s->unrestricted_mv = 1;
650
        s->msmpeg4_version= 5;
651
        s->flipflop_rounding=1;
652
        avctx->delay=0;
653
        s->low_delay=1;
654
        break;
655
    default:
656
        return -1;
657
    }
658

    
659
    avctx->has_b_frames= !s->low_delay;
660

    
661
    s->encoding = 1;
662

    
663
    /* init */
664
    if (MPV_common_init(s) < 0)
665
        return -1;
666

    
667
    if(!s->dct_quantize)
668
        s->dct_quantize = dct_quantize_c;
669
    if(!s->denoise_dct)
670
        s->denoise_dct = denoise_dct_c;
671
    s->fast_dct_quantize = s->dct_quantize;
672
    if(s->flags & CODEC_FLAG_TRELLIS_QUANT)
673
        s->dct_quantize = dct_quantize_trellis_c;
674

    
675
    if((ENABLE_H263P_ENCODER || ENABLE_RV20_ENCODER) && s->modified_quant)
676
        s->chroma_qscale_table= ff_h263_chroma_qscale_table;
677
    s->progressive_frame=
678
    s->progressive_sequence= !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN));
679
    s->quant_precision=5;
680

    
681
    ff_set_cmp(&s->dsp, s->dsp.ildct_cmp, s->avctx->ildct_cmp);
682
    ff_set_cmp(&s->dsp, s->dsp.frame_skip_cmp, s->avctx->frame_skip_cmp);
683

    
684
    if (ENABLE_H261_ENCODER && s->out_format == FMT_H261)
685
        ff_h261_encode_init(s);
686
    if (ENABLE_ANY_H263_ENCODER && s->out_format == FMT_H263)
687
        h263_encode_init(s);
688
    if (ENABLE_MSMPEG4_ENCODER && s->msmpeg4_version)
689
        ff_msmpeg4_encode_init(s);
690
    if ((ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER)
691
        && s->out_format == FMT_MPEG1)
692
        ff_mpeg1_encode_init(s);
693

    
694
    /* init q matrix */
695
    for(i=0;i<64;i++) {
696
        int j= s->dsp.idct_permutation[i];
697
        if(ENABLE_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){
698
            s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
699
            s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
700
        }else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){
701
            s->intra_matrix[j] =
702
            s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
703
        }else
704
        { /* mpeg1/2 */
705
            s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
706
            s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
707
        }
708
        if(s->avctx->intra_matrix)
709
            s->intra_matrix[j] = s->avctx->intra_matrix[i];
710
        if(s->avctx->inter_matrix)
711
            s->inter_matrix[j] = s->avctx->inter_matrix[i];
712
    }
713

    
714
    /* precompute matrix */
715
    /* for mjpeg, we do include qscale in the matrix */
716
    if (s->out_format != FMT_MJPEG) {
717
        ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
718
                       s->intra_matrix, s->intra_quant_bias, avctx->qmin, 31, 1);
719
        ff_convert_matrix(&s->dsp, s->q_inter_matrix, s->q_inter_matrix16,
720
                       s->inter_matrix, s->inter_quant_bias, avctx->qmin, 31, 0);
721
    }
722

    
723
    if(ff_rate_control_init(s) < 0)
724
        return -1;
725

    
726
    return 0;
727
}
728

    
729
int MPV_encode_end(AVCodecContext *avctx)
730
{
731
    MpegEncContext *s = avctx->priv_data;
732

    
733
    ff_rate_control_uninit(s);
734

    
735
    MPV_common_end(s);
736
    if ((ENABLE_MJPEG_ENCODER || ENABLE_LJPEG_ENCODER) && s->out_format == FMT_MJPEG)
737
        ff_mjpeg_encode_close(s);
738

    
739
    av_freep(&avctx->extradata);
740

    
741
    return 0;
742
}
743

    
744
static int get_sae(uint8_t *src, int ref, int stride){
745
    int x,y;
746
    int acc=0;
747

    
748
    for(y=0; y<16; y++){
749
        for(x=0; x<16; x++){
750
            acc+= FFABS(src[x+y*stride] - ref);
751
        }
752
    }
753

    
754
    return acc;
755
}
756

    
757
static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride){
758
    int x, y, w, h;
759
    int acc=0;
760

    
761
    w= s->width &~15;
762
    h= s->height&~15;
763

    
764
    for(y=0; y<h; y+=16){
765
        for(x=0; x<w; x+=16){
766
            int offset= x + y*stride;
767
            int sad = s->dsp.sad[0](NULL, src + offset, ref + offset, stride, 16);
768
            int mean= (s->dsp.pix_sum(src + offset, stride) + 128)>>8;
769
            int sae = get_sae(src + offset, mean, stride);
770

    
771
            acc+= sae + 500 < sad;
772
        }
773
    }
774
    return acc;
775
}
776

    
777

    
778
static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
779
    AVFrame *pic=NULL;
780
    int64_t pts;
781
    int i;
782
    const int encoding_delay= s->max_b_frames;
783
    int direct=1;
784

    
785
    if(pic_arg){
786
        pts= pic_arg->pts;
787
        pic_arg->display_picture_number= s->input_picture_number++;
788

    
789
        if(pts != AV_NOPTS_VALUE){
790
            if(s->user_specified_pts != AV_NOPTS_VALUE){
791
                int64_t time= pts;
792
                int64_t last= s->user_specified_pts;
793

    
794
                if(time <= last){
795
                    av_log(s->avctx, AV_LOG_ERROR, "Error, Invalid timestamp=%"PRId64", last=%"PRId64"\n", pts, s->user_specified_pts);
796
                    return -1;
797
                }
798
            }
799
            s->user_specified_pts= pts;
800
        }else{
801
            if(s->user_specified_pts != AV_NOPTS_VALUE){
802
                s->user_specified_pts=
803
                pts= s->user_specified_pts + 1;
804
                av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%"PRId64")\n", pts);
805
            }else{
806
                pts= pic_arg->display_picture_number;
807
            }
808
        }
809
    }
810

    
811
  if(pic_arg){
812
    if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0;
813
    if(pic_arg->linesize[0] != s->linesize) direct=0;
814
    if(pic_arg->linesize[1] != s->uvlinesize) direct=0;
815
    if(pic_arg->linesize[2] != s->uvlinesize) direct=0;
816

    
817
//    av_log(AV_LOG_DEBUG, "%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize);
818

    
819
    if(direct){
820
        i= ff_find_unused_picture(s, 1);
821

    
822
        pic= (AVFrame*)&s->picture[i];
823
        pic->reference= 3;
824

    
825
        for(i=0; i<4; i++){
826
            pic->data[i]= pic_arg->data[i];
827
            pic->linesize[i]= pic_arg->linesize[i];
828
        }
829
        alloc_picture(s, (Picture*)pic, 1);
830
    }else{
831
        i= ff_find_unused_picture(s, 0);
832

    
833
        pic= (AVFrame*)&s->picture[i];
834
        pic->reference= 3;
835

    
836
        alloc_picture(s, (Picture*)pic, 0);
837

    
838
        if(   pic->data[0] + INPLACE_OFFSET == pic_arg->data[0]
839
           && pic->data[1] + INPLACE_OFFSET == pic_arg->data[1]
840
           && pic->data[2] + INPLACE_OFFSET == pic_arg->data[2]){
841
       // empty
842
        }else{
843
            int h_chroma_shift, v_chroma_shift;
844
            avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
845

    
846
            for(i=0; i<3; i++){
847
                int src_stride= pic_arg->linesize[i];
848
                int dst_stride= i ? s->uvlinesize : s->linesize;
849
                int h_shift= i ? h_chroma_shift : 0;
850
                int v_shift= i ? v_chroma_shift : 0;
851
                int w= s->width >>h_shift;
852
                int h= s->height>>v_shift;
853
                uint8_t *src= pic_arg->data[i];
854
                uint8_t *dst= pic->data[i];
855

    
856
                if(!s->avctx->rc_buffer_size)
857
                    dst +=INPLACE_OFFSET;
858

    
859
                if(src_stride==dst_stride)
860
                    memcpy(dst, src, src_stride*h);
861
                else{
862
                    while(h--){
863
                        memcpy(dst, src, w);
864
                        dst += dst_stride;
865
                        src += src_stride;
866
                    }
867
                }
868
            }
869
        }
870
    }
871
    copy_picture_attributes(s, pic, pic_arg);
872
    pic->pts= pts; //we set this here to avoid modifiying pic_arg
873
  }
874

    
875
    /* shift buffer entries */
876
    for(i=1; i<MAX_PICTURE_COUNT /*s->encoding_delay+1*/; i++)
877
        s->input_picture[i-1]= s->input_picture[i];
878

    
879
    s->input_picture[encoding_delay]= (Picture*)pic;
880

    
881
    return 0;
882
}
883

    
884
static int skip_check(MpegEncContext *s, Picture *p, Picture *ref){
885
    int x, y, plane;
886
    int score=0;
887
    int64_t score64=0;
888

    
889
    for(plane=0; plane<3; plane++){
890
        const int stride= p->linesize[plane];
891
        const int bw= plane ? 1 : 2;
892
        for(y=0; y<s->mb_height*bw; y++){
893
            for(x=0; x<s->mb_width*bw; x++){
894
                int off= p->type == FF_BUFFER_TYPE_SHARED ? 0: 16;
895
                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);
896

    
897
                switch(s->avctx->frame_skip_exp){
898
                    case 0: score= FFMAX(score, v); break;
899
                    case 1: score+= FFABS(v);break;
900
                    case 2: score+= v*v;break;
901
                    case 3: score64+= FFABS(v*v*(int64_t)v);break;
902
                    case 4: score64+= v*v*(int64_t)(v*v);break;
903
                }
904
            }
905
        }
906
    }
907

    
908
    if(score) score64= score;
909

    
910
    if(score64 < s->avctx->frame_skip_threshold)
911
        return 1;
912
    if(score64 < ((s->avctx->frame_skip_factor * (int64_t)s->lambda)>>8))
913
        return 1;
914
    return 0;
915
}
916

    
917
static int estimate_best_b_count(MpegEncContext *s){
918
    AVCodec *codec= avcodec_find_encoder(s->avctx->codec_id);
919
    AVCodecContext *c= avcodec_alloc_context();
920
    AVFrame input[FF_MAX_B_FRAMES+2];
921
    const int scale= s->avctx->brd_scale;
922
    int i, j, out_size, p_lambda, b_lambda, lambda2;
923
    int outbuf_size= s->width * s->height; //FIXME
924
    uint8_t *outbuf= av_malloc(outbuf_size);
925
    int64_t best_rd= INT64_MAX;
926
    int best_b_count= -1;
927

    
928
    assert(scale>=0 && scale <=3);
929

    
930
//    emms_c();
931
    p_lambda= s->last_lambda_for[P_TYPE]; //s->next_picture_ptr->quality;
932
    b_lambda= s->last_lambda_for[B_TYPE]; //p_lambda *FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset;
933
    if(!b_lambda) b_lambda= p_lambda; //FIXME we should do this somewhere else
934
    lambda2= (b_lambda*b_lambda + (1<<FF_LAMBDA_SHIFT)/2 ) >> FF_LAMBDA_SHIFT;
935

    
936
    c->width = s->width >> scale;
937
    c->height= s->height>> scale;
938
    c->flags= CODEC_FLAG_QSCALE | CODEC_FLAG_PSNR | CODEC_FLAG_INPUT_PRESERVED /*| CODEC_FLAG_EMU_EDGE*/;
939
    c->flags|= s->avctx->flags & CODEC_FLAG_QPEL;
940
    c->mb_decision= s->avctx->mb_decision;
941
    c->me_cmp= s->avctx->me_cmp;
942
    c->mb_cmp= s->avctx->mb_cmp;
943
    c->me_sub_cmp= s->avctx->me_sub_cmp;
944
    c->pix_fmt = PIX_FMT_YUV420P;
945
    c->time_base= s->avctx->time_base;
946
    c->max_b_frames= s->max_b_frames;
947

    
948
    if (avcodec_open(c, codec) < 0)
949
        return -1;
950

    
951
    for(i=0; i<s->max_b_frames+2; i++){
952
        int ysize= c->width*c->height;
953
        int csize= (c->width/2)*(c->height/2);
954
        Picture pre_input, *pre_input_ptr= i ? s->input_picture[i-1] : s->next_picture_ptr;
955

    
956
        avcodec_get_frame_defaults(&input[i]);
957
        input[i].data[0]= av_malloc(ysize + 2*csize);
958
        input[i].data[1]= input[i].data[0] + ysize;
959
        input[i].data[2]= input[i].data[1] + csize;
960
        input[i].linesize[0]= c->width;
961
        input[i].linesize[1]=
962
        input[i].linesize[2]= c->width/2;
963

    
964
        if(pre_input_ptr && (!i || s->input_picture[i-1])) {
965
            pre_input= *pre_input_ptr;
966

    
967
            if(pre_input.type != FF_BUFFER_TYPE_SHARED && i) {
968
                pre_input.data[0]+=INPLACE_OFFSET;
969
                pre_input.data[1]+=INPLACE_OFFSET;
970
                pre_input.data[2]+=INPLACE_OFFSET;
971
            }
972

    
973
            s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0], pre_input.data[0], pre_input.linesize[0], c->width, c->height);
974
            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);
975
            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);
976
        }
977
    }
978

    
979
    for(j=0; j<s->max_b_frames+1; j++){
980
        int64_t rd=0;
981

    
982
        if(!s->input_picture[j])
983
            break;
984

    
985
        c->error[0]= c->error[1]= c->error[2]= 0;
986

    
987
        input[0].pict_type= I_TYPE;
988
        input[0].quality= 1 * FF_QP2LAMBDA;
989
        out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[0]);
990
//        rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT;
991

    
992
        for(i=0; i<s->max_b_frames+1; i++){
993
            int is_p= i % (j+1) == j || i==s->max_b_frames;
994

    
995
            input[i+1].pict_type= is_p ? P_TYPE : B_TYPE;
996
            input[i+1].quality= is_p ? p_lambda : b_lambda;
997
            out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[i+1]);
998
            rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
999
        }
1000

    
1001
        /* get the delayed frames */
1002
        while(out_size){
1003
            out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);
1004
            rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1005
        }
1006

    
1007
        rd += c->error[0] + c->error[1] + c->error[2];
1008

    
1009
        if(rd < best_rd){
1010
            best_rd= rd;
1011
            best_b_count= j;
1012
        }
1013
    }
1014

    
1015
    av_freep(&outbuf);
1016
    avcodec_close(c);
1017
    av_freep(&c);
1018

    
1019
    for(i=0; i<s->max_b_frames+2; i++){
1020
        av_freep(&input[i].data[0]);
1021
    }
1022

    
1023
    return best_b_count;
1024
}
1025

    
1026
static void select_input_picture(MpegEncContext *s){
1027
    int i;
1028

    
1029
    for(i=1; i<MAX_PICTURE_COUNT; i++)
1030
        s->reordered_input_picture[i-1]= s->reordered_input_picture[i];
1031
    s->reordered_input_picture[MAX_PICTURE_COUNT-1]= NULL;
1032

    
1033
    /* set next picture type & ordering */
1034
    if(s->reordered_input_picture[0]==NULL && s->input_picture[0]){
1035
        if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture_ptr==NULL || s->intra_only){
1036
            s->reordered_input_picture[0]= s->input_picture[0];
1037
            s->reordered_input_picture[0]->pict_type= I_TYPE;
1038
            s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1039
        }else{
1040
            int b_frames;
1041

    
1042
            if(s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor){
1043
                if(s->picture_in_gop_number < s->gop_size && skip_check(s, s->input_picture[0], s->next_picture_ptr)){
1044
                //FIXME check that te gop check above is +-1 correct
1045
//av_log(NULL, AV_LOG_DEBUG, "skip %p %"PRId64"\n", s->input_picture[0]->data[0], s->input_picture[0]->pts);
1046

    
1047
                    if(s->input_picture[0]->type == FF_BUFFER_TYPE_SHARED){
1048
                        for(i=0; i<4; i++)
1049
                            s->input_picture[0]->data[i]= NULL;
1050
                        s->input_picture[0]->type= 0;
1051
                    }else{
1052
                        assert(   s->input_picture[0]->type==FF_BUFFER_TYPE_USER
1053
                               || s->input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1054

    
1055
                        s->avctx->release_buffer(s->avctx, (AVFrame*)s->input_picture[0]);
1056
                    }
1057

    
1058
                    emms_c();
1059
                    ff_vbv_update(s, 0);
1060

    
1061
                    goto no_output_pic;
1062
                }
1063
            }
1064

    
1065
            if(s->flags&CODEC_FLAG_PASS2){
1066
                for(i=0; i<s->max_b_frames+1; i++){
1067
                    int pict_num= s->input_picture[0]->display_picture_number + i;
1068

    
1069
                    if(pict_num >= s->rc_context.num_entries)
1070
                        break;
1071
                    if(!s->input_picture[i]){
1072
                        s->rc_context.entry[pict_num-1].new_pict_type = P_TYPE;
1073
                        break;
1074
                    }
1075

    
1076
                    s->input_picture[i]->pict_type=
1077
                        s->rc_context.entry[pict_num].new_pict_type;
1078
                }
1079
            }
1080

    
1081
            if(s->avctx->b_frame_strategy==0){
1082
                b_frames= s->max_b_frames;
1083
                while(b_frames && !s->input_picture[b_frames]) b_frames--;
1084
            }else if(s->avctx->b_frame_strategy==1){
1085
                for(i=1; i<s->max_b_frames+1; i++){
1086
                    if(s->input_picture[i] && s->input_picture[i]->b_frame_score==0){
1087
                        s->input_picture[i]->b_frame_score=
1088
                            get_intra_count(s, s->input_picture[i  ]->data[0],
1089
                                               s->input_picture[i-1]->data[0], s->linesize) + 1;
1090
                    }
1091
                }
1092
                for(i=0; i<s->max_b_frames+1; i++){
1093
                    if(s->input_picture[i]==NULL || s->input_picture[i]->b_frame_score - 1 > s->mb_num/s->avctx->b_sensitivity) break;
1094
                }
1095

    
1096
                b_frames= FFMAX(0, i-1);
1097

    
1098
                /* reset scores */
1099
                for(i=0; i<b_frames+1; i++){
1100
                    s->input_picture[i]->b_frame_score=0;
1101
                }
1102
            }else if(s->avctx->b_frame_strategy==2){
1103
                b_frames= estimate_best_b_count(s);
1104
            }else{
1105
                av_log(s->avctx, AV_LOG_ERROR, "illegal b frame strategy\n");
1106
                b_frames=0;
1107
            }
1108

    
1109
            emms_c();
1110
//static int b_count=0;
1111
//b_count+= b_frames;
1112
//av_log(s->avctx, AV_LOG_DEBUG, "b_frames: %d\n", b_count);
1113

    
1114
            for(i= b_frames - 1; i>=0; i--){
1115
                int type= s->input_picture[i]->pict_type;
1116
                if(type && type != B_TYPE)
1117
                    b_frames= i;
1118
            }
1119
            if(s->input_picture[b_frames]->pict_type == B_TYPE && b_frames == s->max_b_frames){
1120
                av_log(s->avctx, AV_LOG_ERROR, "warning, too many b frames in a row\n");
1121
            }
1122

    
1123
            if(s->picture_in_gop_number + b_frames >= s->gop_size){
1124
              if((s->flags2 & CODEC_FLAG2_STRICT_GOP) && s->gop_size > s->picture_in_gop_number){
1125
                    b_frames= s->gop_size - s->picture_in_gop_number - 1;
1126
              }else{
1127
                if(s->flags & CODEC_FLAG_CLOSED_GOP)
1128
                    b_frames=0;
1129
                s->input_picture[b_frames]->pict_type= I_TYPE;
1130
              }
1131
            }
1132

    
1133
            if(   (s->flags & CODEC_FLAG_CLOSED_GOP)
1134
               && b_frames
1135
               && s->input_picture[b_frames]->pict_type== I_TYPE)
1136
                b_frames--;
1137

    
1138
            s->reordered_input_picture[0]= s->input_picture[b_frames];
1139
            if(s->reordered_input_picture[0]->pict_type != I_TYPE)
1140
                s->reordered_input_picture[0]->pict_type= P_TYPE;
1141
            s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1142
            for(i=0; i<b_frames; i++){
1143
                s->reordered_input_picture[i+1]= s->input_picture[i];
1144
                s->reordered_input_picture[i+1]->pict_type= B_TYPE;
1145
                s->reordered_input_picture[i+1]->coded_picture_number= s->coded_picture_number++;
1146
            }
1147
        }
1148
    }
1149
no_output_pic:
1150
    if(s->reordered_input_picture[0]){
1151
        s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=B_TYPE ? 3 : 0;
1152

    
1153
        copy_picture(&s->new_picture, s->reordered_input_picture[0]);
1154

    
1155
        if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_SHARED || s->avctx->rc_buffer_size){
1156
            // input is a shared pix, so we can't modifiy it -> alloc a new one & ensure that the shared one is reuseable
1157

    
1158
            int i= ff_find_unused_picture(s, 0);
1159
            Picture *pic= &s->picture[i];
1160

    
1161
            pic->reference              = s->reordered_input_picture[0]->reference;
1162
            alloc_picture(s, pic, 0);
1163

    
1164
            /* mark us unused / free shared pic */
1165
            if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_INTERNAL)
1166
                s->avctx->release_buffer(s->avctx, (AVFrame*)s->reordered_input_picture[0]);
1167
            for(i=0; i<4; i++)
1168
                s->reordered_input_picture[0]->data[i]= NULL;
1169
            s->reordered_input_picture[0]->type= 0;
1170

    
1171
            copy_picture_attributes(s, (AVFrame*)pic, (AVFrame*)s->reordered_input_picture[0]);
1172

    
1173
            s->current_picture_ptr= pic;
1174
        }else{
1175
            // input is not a shared pix -> reuse buffer for current_pix
1176

    
1177
            assert(   s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
1178
                   || s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1179

    
1180
            s->current_picture_ptr= s->reordered_input_picture[0];
1181
            for(i=0; i<4; i++){
1182
                s->new_picture.data[i]+= INPLACE_OFFSET;
1183
            }
1184
        }
1185
        copy_picture(&s->current_picture, s->current_picture_ptr);
1186

    
1187
        s->picture_number= s->new_picture.display_picture_number;
1188
//printf("dpn:%d\n", s->picture_number);
1189
    }else{
1190
       memset(&s->new_picture, 0, sizeof(Picture));
1191
    }
1192
}
1193

    
1194
int MPV_encode_picture(AVCodecContext *avctx,
1195
                       unsigned char *buf, int buf_size, void *data)
1196
{
1197
    MpegEncContext *s = avctx->priv_data;
1198
    AVFrame *pic_arg = data;
1199
    int i, stuffing_count;
1200

    
1201
    for(i=0; i<avctx->thread_count; i++){
1202
        int start_y= s->thread_context[i]->start_mb_y;
1203
        int   end_y= s->thread_context[i]->  end_mb_y;
1204
        int h= s->mb_height;
1205
        uint8_t *start= buf + (size_t)(((int64_t) buf_size)*start_y/h);
1206
        uint8_t *end  = buf + (size_t)(((int64_t) buf_size)*  end_y/h);
1207

    
1208
        init_put_bits(&s->thread_context[i]->pb, start, end - start);
1209
    }
1210

    
1211
    s->picture_in_gop_number++;
1212

    
1213
    if(load_input_picture(s, pic_arg) < 0)
1214
        return -1;
1215

    
1216
    select_input_picture(s);
1217

    
1218
    /* output? */
1219
    if(s->new_picture.data[0]){
1220
        s->pict_type= s->new_picture.pict_type;
1221
//emms_c();
1222
//printf("qs:%f %f %d\n", s->new_picture.quality, s->current_picture.quality, s->qscale);
1223
        MPV_frame_start(s, avctx);
1224
vbv_retry:
1225
        if (encode_picture(s, s->picture_number) < 0)
1226
            return -1;
1227

    
1228
        avctx->real_pict_num  = s->picture_number;
1229
        avctx->header_bits = s->header_bits;
1230
        avctx->mv_bits     = s->mv_bits;
1231
        avctx->misc_bits   = s->misc_bits;
1232
        avctx->i_tex_bits  = s->i_tex_bits;
1233
        avctx->p_tex_bits  = s->p_tex_bits;
1234
        avctx->i_count     = s->i_count;
1235
        avctx->p_count     = s->mb_num - s->i_count - s->skip_count; //FIXME f/b_count in avctx
1236
        avctx->skip_count  = s->skip_count;
1237

    
1238
        MPV_frame_end(s);
1239

    
1240
        if (ENABLE_MJPEG_ENCODER && s->out_format == FMT_MJPEG)
1241
            ff_mjpeg_encode_picture_trailer(s);
1242

    
1243
        if(avctx->rc_buffer_size){
1244
            RateControlContext *rcc= &s->rc_context;
1245
            int max_size= rcc->buffer_index/3;
1246

    
1247
            if(put_bits_count(&s->pb) > max_size && s->lambda < s->avctx->lmax){
1248
                s->next_lambda= FFMAX(s->lambda+1, s->lambda*(s->qscale+1) / s->qscale);
1249
                if(s->adaptive_quant){
1250
                    int i;
1251
                    for(i=0; i<s->mb_height*s->mb_stride; i++)
1252
                        s->lambda_table[i]= FFMAX(s->lambda_table[i]+1, s->lambda_table[i]*(s->qscale+1) / s->qscale);
1253
                }
1254
                s->mb_skipped = 0;        //done in MPV_frame_start()
1255
                if(s->pict_type==P_TYPE){ //done in encode_picture() so we must undo it
1256
                    if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
1257
                        s->no_rounding ^= 1;
1258
                }
1259
                if(s->pict_type!=B_TYPE){
1260
                    s->time_base= s->last_time_base;
1261
                    s->last_non_b_time= s->time - s->pp_time;
1262
                }
1263
//                av_log(NULL, AV_LOG_ERROR, "R:%d ", s->next_lambda);
1264
                for(i=0; i<avctx->thread_count; i++){
1265
                    PutBitContext *pb= &s->thread_context[i]->pb;
1266
                    init_put_bits(pb, pb->buf, pb->buf_end - pb->buf);
1267
                }
1268
                goto vbv_retry;
1269
            }
1270

    
1271
            assert(s->avctx->rc_max_rate);
1272
        }
1273

    
1274
        if(s->flags&CODEC_FLAG_PASS1)
1275
            ff_write_pass1_stats(s);
1276

    
1277
        for(i=0; i<4; i++){
1278
            s->current_picture_ptr->error[i]= s->current_picture.error[i];
1279
            avctx->error[i] += s->current_picture_ptr->error[i];
1280
        }
1281

    
1282
        if(s->flags&CODEC_FLAG_PASS1)
1283
            assert(avctx->header_bits + avctx->mv_bits + avctx->misc_bits + avctx->i_tex_bits + avctx->p_tex_bits == put_bits_count(&s->pb));
1284
        flush_put_bits(&s->pb);
1285
        s->frame_bits  = put_bits_count(&s->pb);
1286

    
1287
        stuffing_count= ff_vbv_update(s, s->frame_bits);
1288
        if(stuffing_count){
1289
            if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < stuffing_count + 50){
1290
                av_log(s->avctx, AV_LOG_ERROR, "stuffing too large\n");
1291
                return -1;
1292
            }
1293

    
1294
            switch(s->codec_id){
1295
            case CODEC_ID_MPEG1VIDEO:
1296
            case CODEC_ID_MPEG2VIDEO:
1297
                while(stuffing_count--){
1298
                    put_bits(&s->pb, 8, 0);
1299
                }
1300
            break;
1301
            case CODEC_ID_MPEG4:
1302
                put_bits(&s->pb, 16, 0);
1303
                put_bits(&s->pb, 16, 0x1C3);
1304
                stuffing_count -= 4;
1305
                while(stuffing_count--){
1306
                    put_bits(&s->pb, 8, 0xFF);
1307
                }
1308
            break;
1309
            default:
1310
                av_log(s->avctx, AV_LOG_ERROR, "vbv buffer overflow\n");
1311
            }
1312
            flush_put_bits(&s->pb);
1313
            s->frame_bits  = put_bits_count(&s->pb);
1314
        }
1315

    
1316
        /* update mpeg1/2 vbv_delay for CBR */
1317
        if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && s->out_format == FMT_MPEG1
1318
           && 90000LL * (avctx->rc_buffer_size-1) <= s->avctx->rc_max_rate*0xFFFFLL){
1319
            int vbv_delay;
1320

    
1321
            assert(s->repeat_first_field==0);
1322

    
1323
            vbv_delay= lrintf(90000 * s->rc_context.buffer_index / s->avctx->rc_max_rate);
1324
            assert(vbv_delay < 0xFFFF);
1325

    
1326
            s->vbv_delay_ptr[0] &= 0xF8;
1327
            s->vbv_delay_ptr[0] |= vbv_delay>>13;
1328
            s->vbv_delay_ptr[1]  = vbv_delay>>5;
1329
            s->vbv_delay_ptr[2] &= 0x07;
1330
            s->vbv_delay_ptr[2] |= vbv_delay<<3;
1331
        }
1332
        s->total_bits += s->frame_bits;
1333
        avctx->frame_bits  = s->frame_bits;
1334
    }else{
1335
        assert((pbBufPtr(&s->pb) == s->pb.buf));
1336
        s->frame_bits=0;
1337
    }
1338
    assert((s->frame_bits&7)==0);
1339

    
1340
    return s->frame_bits/8;
1341
}
1342

    
1343
static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold)
1344
{
1345
    static const char tab[64]=
1346
        {3,2,2,1,1,1,1,1,
1347
         1,1,1,1,1,1,1,1,
1348
         1,1,1,1,1,1,1,1,
1349
         0,0,0,0,0,0,0,0,
1350
         0,0,0,0,0,0,0,0,
1351
         0,0,0,0,0,0,0,0,
1352
         0,0,0,0,0,0,0,0,
1353
         0,0,0,0,0,0,0,0};
1354
    int score=0;
1355
    int run=0;
1356
    int i;
1357
    DCTELEM *block= s->block[n];
1358
    const int last_index= s->block_last_index[n];
1359
    int skip_dc;
1360

    
1361
    if(threshold<0){
1362
        skip_dc=0;
1363
        threshold= -threshold;
1364
    }else
1365
        skip_dc=1;
1366

    
1367
    /* are all which we could set to zero are allready zero? */
1368
    if(last_index<=skip_dc - 1) return;
1369

    
1370
    for(i=0; i<=last_index; i++){
1371
        const int j = s->intra_scantable.permutated[i];
1372
        const int level = FFABS(block[j]);
1373
        if(level==1){
1374
            if(skip_dc && i==0) continue;
1375
            score+= tab[run];
1376
            run=0;
1377
        }else if(level>1){
1378
            return;
1379
        }else{
1380
            run++;
1381
        }
1382
    }
1383
    if(score >= threshold) return;
1384
    for(i=skip_dc; i<=last_index; i++){
1385
        const int j = s->intra_scantable.permutated[i];
1386
        block[j]=0;
1387
    }
1388
    if(block[0]) s->block_last_index[n]= 0;
1389
    else         s->block_last_index[n]= -1;
1390
}
1391

    
1392
static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1393
{
1394
    int i;
1395
    const int maxlevel= s->max_qcoeff;
1396
    const int minlevel= s->min_qcoeff;
1397
    int overflow=0;
1398

    
1399
    if(s->mb_intra){
1400
        i=1; //skip clipping of intra dc
1401
    }else
1402
        i=0;
1403

    
1404
    for(;i<=last_index; i++){
1405
        const int j= s->intra_scantable.permutated[i];
1406
        int level = block[j];
1407

    
1408
        if     (level>maxlevel){
1409
            level=maxlevel;
1410
            overflow++;
1411
        }else if(level<minlevel){
1412
            level=minlevel;
1413
            overflow++;
1414
        }
1415

    
1416
        block[j]= level;
1417
    }
1418

    
1419
    if(overflow && s->avctx->mb_decision == FF_MB_DECISION_SIMPLE)
1420
        av_log(s->avctx, AV_LOG_INFO, "warning, clipping %d dct coefficients to %d..%d\n", overflow, minlevel, maxlevel);
1421
}
1422

    
1423
static void get_visual_weight(int16_t *weight, uint8_t *ptr, int stride){
1424
    int x, y;
1425
//FIXME optimize
1426
    for(y=0; y<8; y++){
1427
        for(x=0; x<8; x++){
1428
            int x2, y2;
1429
            int sum=0;
1430
            int sqr=0;
1431
            int count=0;
1432

    
1433
            for(y2= FFMAX(y-1, 0); y2 < FFMIN(8, y+2); y2++){
1434
                for(x2= FFMAX(x-1, 0); x2 < FFMIN(8, x+2); x2++){
1435
                    int v= ptr[x2 + y2*stride];
1436
                    sum += v;
1437
                    sqr += v*v;
1438
                    count++;
1439
                }
1440
            }
1441
            weight[x + 8*y]= (36*ff_sqrt(count*sqr - sum*sum)) / count;
1442
        }
1443
    }
1444
}
1445

    
1446
static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count)
1447
{
1448
    int16_t weight[8][64];
1449
    DCTELEM orig[8][64];
1450
    const int mb_x= s->mb_x;
1451
    const int mb_y= s->mb_y;
1452
    int i;
1453
    int skip_dct[8];
1454
    int dct_offset   = s->linesize*8; //default for progressive frames
1455
    uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1456
    int wrap_y, wrap_c;
1457

    
1458
    for(i=0; i<mb_block_count; i++) skip_dct[i]=s->skipdct;
1459

    
1460
    if(s->adaptive_quant){
1461
        const int last_qp= s->qscale;
1462
        const int mb_xy= mb_x + mb_y*s->mb_stride;
1463

    
1464
        s->lambda= s->lambda_table[mb_xy];
1465
        update_qscale(s);
1466

    
1467
        if(!(s->flags&CODEC_FLAG_QP_RD)){
1468
            s->qscale= s->current_picture_ptr->qscale_table[mb_xy];
1469
            s->dquant= s->qscale - last_qp;
1470

    
1471
            if(s->out_format==FMT_H263){
1472
                s->dquant= av_clip(s->dquant, -2, 2);
1473

    
1474
                if(s->codec_id==CODEC_ID_MPEG4){
1475
                    if(!s->mb_intra){
1476
                        if(s->pict_type == B_TYPE){
1477
                            if(s->dquant&1 || s->mv_dir&MV_DIRECT)
1478
                                s->dquant= 0;
1479
                        }
1480
                        if(s->mv_type==MV_TYPE_8X8)
1481
                            s->dquant=0;
1482
                    }
1483
                }
1484
            }
1485
        }
1486
        ff_set_qscale(s, last_qp + s->dquant);
1487
    }else if(s->flags&CODEC_FLAG_QP_RD)
1488
        ff_set_qscale(s, s->qscale + s->dquant);
1489

    
1490
    wrap_y = s->linesize;
1491
    wrap_c = s->uvlinesize;
1492
    ptr_y = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
1493
    ptr_cb = s->new_picture.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1494
    ptr_cr = s->new_picture.data[2] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1495

    
1496
    if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
1497
        uint8_t *ebuf= s->edge_emu_buffer + 32;
1498
        ff_emulated_edge_mc(ebuf            , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width   , s->height);
1499
        ptr_y= ebuf;
1500
        ff_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);
1501
        ptr_cb= ebuf+18*wrap_y;
1502
        ff_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);
1503
        ptr_cr= ebuf+18*wrap_y+8;
1504
    }
1505

    
1506
    if (s->mb_intra) {
1507
        if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1508
            int progressive_score, interlaced_score;
1509

    
1510
            s->interlaced_dct=0;
1511
            progressive_score= s->dsp.ildct_cmp[4](s, ptr_y           , NULL, wrap_y, 8)
1512
                              +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y*8, NULL, wrap_y, 8) - 400;
1513

    
1514
            if(progressive_score > 0){
1515
                interlaced_score = s->dsp.ildct_cmp[4](s, ptr_y           , NULL, wrap_y*2, 8)
1516
                                  +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y  , NULL, wrap_y*2, 8);
1517
                if(progressive_score > interlaced_score){
1518
                    s->interlaced_dct=1;
1519

    
1520
                    dct_offset= wrap_y;
1521
                    wrap_y<<=1;
1522
                    if (s->chroma_format == CHROMA_422)
1523
                        wrap_c<<=1;
1524
                }
1525
            }
1526
        }
1527

    
1528
        s->dsp.get_pixels(s->block[0], ptr_y                 , wrap_y);
1529
        s->dsp.get_pixels(s->block[1], ptr_y              + 8, wrap_y);
1530
        s->dsp.get_pixels(s->block[2], ptr_y + dct_offset    , wrap_y);
1531
        s->dsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y);
1532

    
1533
        if(s->flags&CODEC_FLAG_GRAY){
1534
            skip_dct[4]= 1;
1535
            skip_dct[5]= 1;
1536
        }else{
1537
            s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c);
1538
            s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c);
1539
            if(!s->chroma_y_shift){ /* 422 */
1540
                s->dsp.get_pixels(s->block[6], ptr_cb + (dct_offset>>1), wrap_c);
1541
                s->dsp.get_pixels(s->block[7], ptr_cr + (dct_offset>>1), wrap_c);
1542
            }
1543
        }
1544
    }else{
1545
        op_pixels_func (*op_pix)[4];
1546
        qpel_mc_func (*op_qpix)[16];
1547
        uint8_t *dest_y, *dest_cb, *dest_cr;
1548

    
1549
        dest_y  = s->dest[0];
1550
        dest_cb = s->dest[1];
1551
        dest_cr = s->dest[2];
1552

    
1553
        if ((!s->no_rounding) || s->pict_type==B_TYPE){
1554
            op_pix = s->dsp.put_pixels_tab;
1555
            op_qpix= s->dsp.put_qpel_pixels_tab;
1556
        }else{
1557
            op_pix = s->dsp.put_no_rnd_pixels_tab;
1558
            op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab;
1559
        }
1560

    
1561
        if (s->mv_dir & MV_DIR_FORWARD) {
1562
            MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix);
1563
            op_pix = s->dsp.avg_pixels_tab;
1564
            op_qpix= s->dsp.avg_qpel_pixels_tab;
1565
        }
1566
        if (s->mv_dir & MV_DIR_BACKWARD) {
1567
            MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix);
1568
        }
1569

    
1570
        if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1571
            int progressive_score, interlaced_score;
1572

    
1573
            s->interlaced_dct=0;
1574
            progressive_score= s->dsp.ildct_cmp[0](s, dest_y           , ptr_y           , wrap_y, 8)
1575
                              +s->dsp.ildct_cmp[0](s, dest_y + wrap_y*8, ptr_y + wrap_y*8, wrap_y, 8) - 400;
1576

    
1577
            if(s->avctx->ildct_cmp == FF_CMP_VSSE) progressive_score -= 400;
1578

    
1579
            if(progressive_score>0){
1580
                interlaced_score = s->dsp.ildct_cmp[0](s, dest_y           , ptr_y           , wrap_y*2, 8)
1581
                                  +s->dsp.ildct_cmp[0](s, dest_y + wrap_y  , ptr_y + wrap_y  , wrap_y*2, 8);
1582

    
1583
                if(progressive_score > interlaced_score){
1584
                    s->interlaced_dct=1;
1585

    
1586
                    dct_offset= wrap_y;
1587
                    wrap_y<<=1;
1588
                    if (s->chroma_format == CHROMA_422)
1589
                        wrap_c<<=1;
1590
                }
1591
            }
1592
        }
1593

    
1594
        s->dsp.diff_pixels(s->block[0], ptr_y                 , dest_y                 , wrap_y);
1595
        s->dsp.diff_pixels(s->block[1], ptr_y              + 8, dest_y              + 8, wrap_y);
1596
        s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset    , dest_y + dct_offset    , wrap_y);
1597
        s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y);
1598

    
1599
        if(s->flags&CODEC_FLAG_GRAY){
1600
            skip_dct[4]= 1;
1601
            skip_dct[5]= 1;
1602
        }else{
1603
            s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
1604
            s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
1605
            if(!s->chroma_y_shift){ /* 422 */
1606
                s->dsp.diff_pixels(s->block[6], ptr_cb + (dct_offset>>1), dest_cb + (dct_offset>>1), wrap_c);
1607
                s->dsp.diff_pixels(s->block[7], ptr_cr + (dct_offset>>1), dest_cr + (dct_offset>>1), wrap_c);
1608
            }
1609
        }
1610
        /* pre quantization */
1611
        if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){
1612
            //FIXME optimize
1613
            if(s->dsp.sad[1](NULL, ptr_y               , dest_y               , wrap_y, 8) < 20*s->qscale) skip_dct[0]= 1;
1614
            if(s->dsp.sad[1](NULL, ptr_y            + 8, dest_y            + 8, wrap_y, 8) < 20*s->qscale) skip_dct[1]= 1;
1615
            if(s->dsp.sad[1](NULL, ptr_y +dct_offset   , dest_y +dct_offset   , wrap_y, 8) < 20*s->qscale) skip_dct[2]= 1;
1616
            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;
1617
            if(s->dsp.sad[1](NULL, ptr_cb              , dest_cb              , wrap_c, 8) < 20*s->qscale) skip_dct[4]= 1;
1618
            if(s->dsp.sad[1](NULL, ptr_cr              , dest_cr              , wrap_c, 8) < 20*s->qscale) skip_dct[5]= 1;
1619
            if(!s->chroma_y_shift){ /* 422 */
1620
                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;
1621
                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;
1622
            }
1623
        }
1624
    }
1625

    
1626
    if(s->avctx->quantizer_noise_shaping){
1627
        if(!skip_dct[0]) get_visual_weight(weight[0], ptr_y                 , wrap_y);
1628
        if(!skip_dct[1]) get_visual_weight(weight[1], ptr_y              + 8, wrap_y);
1629
        if(!skip_dct[2]) get_visual_weight(weight[2], ptr_y + dct_offset    , wrap_y);
1630
        if(!skip_dct[3]) get_visual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y);
1631
        if(!skip_dct[4]) get_visual_weight(weight[4], ptr_cb                , wrap_c);
1632
        if(!skip_dct[5]) get_visual_weight(weight[5], ptr_cr                , wrap_c);
1633
        if(!s->chroma_y_shift){ /* 422 */
1634
            if(!skip_dct[6]) get_visual_weight(weight[6], ptr_cb + (dct_offset>>1), wrap_c);
1635
            if(!skip_dct[7]) get_visual_weight(weight[7], ptr_cr + (dct_offset>>1), wrap_c);
1636
        }
1637
        memcpy(orig[0], s->block[0], sizeof(DCTELEM)*64*mb_block_count);
1638
    }
1639

    
1640
    /* DCT & quantize */
1641
    assert(s->out_format!=FMT_MJPEG || s->qscale==8);
1642
    {
1643
        for(i=0;i<mb_block_count;i++) {
1644
            if(!skip_dct[i]){
1645
                int overflow;
1646
                s->block_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow);
1647
            // FIXME we could decide to change to quantizer instead of clipping
1648
            // JS: I don't think that would be a good idea it could lower quality instead
1649
            //     of improve it. Just INTRADC clipping deserves changes in quantizer
1650
                if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1651
            }else
1652
                s->block_last_index[i]= -1;
1653
        }
1654
        if(s->avctx->quantizer_noise_shaping){
1655
            for(i=0;i<mb_block_count;i++) {
1656
                if(!skip_dct[i]){
1657
                    s->block_last_index[i] = dct_quantize_refine(s, s->block[i], weight[i], orig[i], i, s->qscale);
1658
                }
1659
            }
1660
        }
1661

    
1662
        if(s->luma_elim_threshold && !s->mb_intra)
1663
            for(i=0; i<4; i++)
1664
                dct_single_coeff_elimination(s, i, s->luma_elim_threshold);
1665
        if(s->chroma_elim_threshold && !s->mb_intra)
1666
            for(i=4; i<mb_block_count; i++)
1667
                dct_single_coeff_elimination(s, i, s->chroma_elim_threshold);
1668

    
1669
        if(s->flags & CODEC_FLAG_CBP_RD){
1670
            for(i=0;i<mb_block_count;i++) {
1671
                if(s->block_last_index[i] == -1)
1672
                    s->coded_score[i]= INT_MAX/256;
1673
            }
1674
        }
1675
    }
1676

    
1677
    if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
1678
        s->block_last_index[4]=
1679
        s->block_last_index[5]= 0;
1680
        s->block[4][0]=
1681
        s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale;
1682
    }
1683

    
1684
    //non c quantize code returns incorrect block_last_index FIXME
1685
    if(s->alternate_scan && s->dct_quantize != dct_quantize_c){
1686
        for(i=0; i<mb_block_count; i++){
1687
            int j;
1688
            if(s->block_last_index[i]>0){
1689
                for(j=63; j>0; j--){
1690
                    if(s->block[i][ s->intra_scantable.permutated[j] ]) break;
1691
                }
1692
                s->block_last_index[i]= j;
1693
            }
1694
        }
1695
    }
1696

    
1697
    /* huffman encode */
1698
    switch(s->codec_id){ //FIXME funct ptr could be slightly faster
1699
    case CODEC_ID_MPEG1VIDEO:
1700
    case CODEC_ID_MPEG2VIDEO:
1701
        if (ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER)
1702
            mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1703
        break;
1704
    case CODEC_ID_MPEG4:
1705
        if (ENABLE_MPEG4_ENCODER)
1706
            mpeg4_encode_mb(s, s->block, motion_x, motion_y);
1707
        break;
1708
    case CODEC_ID_MSMPEG4V2:
1709
    case CODEC_ID_MSMPEG4V3:
1710
    case CODEC_ID_WMV1:
1711
        if (ENABLE_MSMPEG4_ENCODER)
1712
            msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1713
        break;
1714
    case CODEC_ID_WMV2:
1715
        if (ENABLE_WMV2_ENCODER)
1716
            ff_wmv2_encode_mb(s, s->block, motion_x, motion_y);
1717
        break;
1718
    case CODEC_ID_H261:
1719
        if (ENABLE_H261_ENCODER)
1720
            ff_h261_encode_mb(s, s->block, motion_x, motion_y);
1721
        break;
1722
    case CODEC_ID_H263:
1723
    case CODEC_ID_H263P:
1724
    case CODEC_ID_FLV1:
1725
    case CODEC_ID_RV10:
1726
    case CODEC_ID_RV20:
1727
        if (ENABLE_H263_ENCODER || ENABLE_H263P_ENCODER ||
1728
            ENABLE_FLV_ENCODER  || ENABLE_RV10_ENCODER  || ENABLE_RV20_ENCODER)
1729
            h263_encode_mb(s, s->block, motion_x, motion_y);
1730
        break;
1731
    case CODEC_ID_MJPEG:
1732
        if (ENABLE_MJPEG_ENCODER)
1733
            ff_mjpeg_encode_mb(s, s->block);
1734
        break;
1735
    default:
1736
        assert(0);
1737
    }
1738
}
1739

    
1740
static av_always_inline void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
1741
{
1742
    if (s->chroma_format == CHROMA_420) encode_mb_internal(s, motion_x, motion_y,  8, 6);
1743
    else                                encode_mb_internal(s, motion_x, motion_y, 16, 8);
1744
}
1745

    
1746
static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1747
    int i;
1748

    
1749
    memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1750

    
1751
    /* mpeg1 */
1752
    d->mb_skip_run= s->mb_skip_run;
1753
    for(i=0; i<3; i++)
1754
        d->last_dc[i]= s->last_dc[i];
1755

    
1756
    /* statistics */
1757
    d->mv_bits= s->mv_bits;
1758
    d->i_tex_bits= s->i_tex_bits;
1759
    d->p_tex_bits= s->p_tex_bits;
1760
    d->i_count= s->i_count;
1761
    d->f_count= s->f_count;
1762
    d->b_count= s->b_count;
1763
    d->skip_count= s->skip_count;
1764
    d->misc_bits= s->misc_bits;
1765
    d->last_bits= 0;
1766

    
1767
    d->mb_skipped= 0;
1768
    d->qscale= s->qscale;
1769
    d->dquant= s->dquant;
1770

    
1771
    d->esc3_level_length= s->esc3_level_length;
1772
}
1773

    
1774
static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1775
    int i;
1776

    
1777
    memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
1778
    memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1779

    
1780
    /* mpeg1 */
1781
    d->mb_skip_run= s->mb_skip_run;
1782
    for(i=0; i<3; i++)
1783
        d->last_dc[i]= s->last_dc[i];
1784

    
1785
    /* statistics */
1786
    d->mv_bits= s->mv_bits;
1787
    d->i_tex_bits= s->i_tex_bits;
1788
    d->p_tex_bits= s->p_tex_bits;
1789
    d->i_count= s->i_count;
1790
    d->f_count= s->f_count;
1791
    d->b_count= s->b_count;
1792
    d->skip_count= s->skip_count;
1793
    d->misc_bits= s->misc_bits;
1794

    
1795
    d->mb_intra= s->mb_intra;
1796
    d->mb_skipped= s->mb_skipped;
1797
    d->mv_type= s->mv_type;
1798
    d->mv_dir= s->mv_dir;
1799
    d->pb= s->pb;
1800
    if(s->data_partitioning){
1801
        d->pb2= s->pb2;
1802
        d->tex_pb= s->tex_pb;
1803
    }
1804
    d->block= s->block;
1805
    for(i=0; i<8; i++)
1806
        d->block_last_index[i]= s->block_last_index[i];
1807
    d->interlaced_dct= s->interlaced_dct;
1808
    d->qscale= s->qscale;
1809

    
1810
    d->esc3_level_length= s->esc3_level_length;
1811
}
1812

    
1813
static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type,
1814
                           PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
1815
                           int *dmin, int *next_block, int motion_x, int motion_y)
1816
{
1817
    int score;
1818
    uint8_t *dest_backup[3];
1819

    
1820
    copy_context_before_encode(s, backup, type);
1821

    
1822
    s->block= s->blocks[*next_block];
1823
    s->pb= pb[*next_block];
1824
    if(s->data_partitioning){
1825
        s->pb2   = pb2   [*next_block];
1826
        s->tex_pb= tex_pb[*next_block];
1827
    }
1828

    
1829
    if(*next_block){
1830
        memcpy(dest_backup, s->dest, sizeof(s->dest));
1831
        s->dest[0] = s->rd_scratchpad;
1832
        s->dest[1] = s->rd_scratchpad + 16*s->linesize;
1833
        s->dest[2] = s->rd_scratchpad + 16*s->linesize + 8;
1834
        assert(s->linesize >= 32); //FIXME
1835
    }
1836

    
1837
    encode_mb(s, motion_x, motion_y);
1838

    
1839
    score= put_bits_count(&s->pb);
1840
    if(s->data_partitioning){
1841
        score+= put_bits_count(&s->pb2);
1842
        score+= put_bits_count(&s->tex_pb);
1843
    }
1844

    
1845
    if(s->avctx->mb_decision == FF_MB_DECISION_RD){
1846
        MPV_decode_mb(s, s->block);
1847

    
1848
        score *= s->lambda2;
1849
        score += sse_mb(s) << FF_LAMBDA_SHIFT;
1850
    }
1851

    
1852
    if(*next_block){
1853
        memcpy(s->dest, dest_backup, sizeof(s->dest));
1854
    }
1855

    
1856
    if(score<*dmin){
1857
        *dmin= score;
1858
        *next_block^=1;
1859

    
1860
        copy_context_after_encode(best, s, type);
1861
    }
1862
}
1863

    
1864
static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){
1865
    uint32_t *sq = ff_squareTbl + 256;
1866
    int acc=0;
1867
    int x,y;
1868

    
1869
    if(w==16 && h==16)
1870
        return s->dsp.sse[0](NULL, src1, src2, stride, 16);
1871
    else if(w==8 && h==8)
1872
        return s->dsp.sse[1](NULL, src1, src2, stride, 8);
1873

    
1874
    for(y=0; y<h; y++){
1875
        for(x=0; x<w; x++){
1876
            acc+= sq[src1[x + y*stride] - src2[x + y*stride]];
1877
        }
1878
    }
1879

    
1880
    assert(acc>=0);
1881

    
1882
    return acc;
1883
}
1884

    
1885
static int sse_mb(MpegEncContext *s){
1886
    int w= 16;
1887
    int h= 16;
1888

    
1889
    if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
1890
    if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
1891

    
1892
    if(w==16 && h==16)
1893
      if(s->avctx->mb_cmp == FF_CMP_NSSE){
1894
        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)
1895
               +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)
1896
               +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);
1897
      }else{
1898
        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)
1899
               +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)
1900
               +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);
1901
      }
1902
    else
1903
        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)
1904
               +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)
1905
               +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);
1906
}
1907

    
1908
static int pre_estimate_motion_thread(AVCodecContext *c, void *arg){
1909
    MpegEncContext *s= arg;
1910

    
1911

    
1912
    s->me.pre_pass=1;
1913
    s->me.dia_size= s->avctx->pre_dia_size;
1914
    s->first_slice_line=1;
1915
    for(s->mb_y= s->end_mb_y-1; s->mb_y >= s->start_mb_y; s->mb_y--) {
1916
        for(s->mb_x=s->mb_width-1; s->mb_x >=0 ;s->mb_x--) {
1917
            ff_pre_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1918
        }
1919
        s->first_slice_line=0;
1920
    }
1921

    
1922
    s->me.pre_pass=0;
1923

    
1924
    return 0;
1925
}
1926

    
1927
static int estimate_motion_thread(AVCodecContext *c, void *arg){
1928
    MpegEncContext *s= arg;
1929

    
1930
    ff_check_alignment();
1931

    
1932
    s->me.dia_size= s->avctx->dia_size;
1933
    s->first_slice_line=1;
1934
    for(s->mb_y= s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
1935
        s->mb_x=0; //for block init below
1936
        ff_init_block_index(s);
1937
        for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {
1938
            s->block_index[0]+=2;
1939
            s->block_index[1]+=2;
1940
            s->block_index[2]+=2;
1941
            s->block_index[3]+=2;
1942

    
1943
            /* compute motion vector & mb_type and store in context */
1944
            if(s->pict_type==B_TYPE)
1945
                ff_estimate_b_frame_motion(s, s->mb_x, s->mb_y);
1946
            else
1947
                ff_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1948
        }
1949
        s->first_slice_line=0;
1950
    }
1951
    return 0;
1952
}
1953

    
1954
static int mb_var_thread(AVCodecContext *c, void *arg){
1955
    MpegEncContext *s= arg;
1956
    int mb_x, mb_y;
1957

    
1958
    ff_check_alignment();
1959

    
1960
    for(mb_y=s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
1961
        for(mb_x=0; mb_x < s->mb_width; mb_x++) {
1962
            int xx = mb_x * 16;
1963
            int yy = mb_y * 16;
1964
            uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
1965
            int varc;
1966
            int sum = s->dsp.pix_sum(pix, s->linesize);
1967

    
1968
            varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
1969

    
1970
            s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
1971
            s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
1972
            s->me.mb_var_sum_temp    += varc;
1973
        }
1974
    }
1975
    return 0;
1976
}
1977

    
1978
static void write_slice_end(MpegEncContext *s){
1979
    if(ENABLE_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4){
1980
        if(s->partitioned_frame){
1981
            ff_mpeg4_merge_partitions(s);
1982
        }
1983

    
1984
        ff_mpeg4_stuffing(&s->pb);
1985
    }else if(ENABLE_MJPEG_ENCODER && s->out_format == FMT_MJPEG){
1986
        ff_mjpeg_encode_stuffing(&s->pb);
1987
    }
1988

    
1989
    align_put_bits(&s->pb);
1990
    flush_put_bits(&s->pb);
1991

    
1992
    if((s->flags&CODEC_FLAG_PASS1) && !s->partitioned_frame)
1993
        s->misc_bits+= get_bits_diff(s);
1994
}
1995

    
1996
static int encode_thread(AVCodecContext *c, void *arg){
1997
    MpegEncContext *s= arg;
1998
    int mb_x, mb_y, pdif = 0;
1999
    int i, j;
2000
    MpegEncContext best_s, backup_s;
2001
    uint8_t bit_buf[2][MAX_MB_BYTES];
2002
    uint8_t bit_buf2[2][MAX_MB_BYTES];
2003
    uint8_t bit_buf_tex[2][MAX_MB_BYTES];
2004
    PutBitContext pb[2], pb2[2], tex_pb[2];
2005
//printf("%d->%d\n", s->resync_mb_y, s->end_mb_y);
2006

    
2007
    ff_check_alignment();
2008

    
2009
    for(i=0; i<2; i++){
2010
        init_put_bits(&pb    [i], bit_buf    [i], MAX_MB_BYTES);
2011
        init_put_bits(&pb2   [i], bit_buf2   [i], MAX_MB_BYTES);
2012
        init_put_bits(&tex_pb[i], bit_buf_tex[i], MAX_MB_BYTES);
2013
    }
2014

    
2015
    s->last_bits= put_bits_count(&s->pb);
2016
    s->mv_bits=0;
2017
    s->misc_bits=0;
2018
    s->i_tex_bits=0;
2019
    s->p_tex_bits=0;
2020
    s->i_count=0;
2021
    s->f_count=0;
2022
    s->b_count=0;
2023
    s->skip_count=0;
2024

    
2025
    for(i=0; i<3; i++){
2026
        /* init last dc values */
2027
        /* note: quant matrix value (8) is implied here */
2028
        s->last_dc[i] = 128 << s->intra_dc_precision;
2029

    
2030
        s->current_picture.error[i] = 0;
2031
    }
2032
    s->mb_skip_run = 0;
2033
    memset(s->last_mv, 0, sizeof(s->last_mv));
2034

    
2035
    s->last_mv_dir = 0;
2036

    
2037
    switch(s->codec_id){
2038
    case CODEC_ID_H263:
2039
    case CODEC_ID_H263P:
2040
    case CODEC_ID_FLV1:
2041
        if (ENABLE_H263_ENCODER || ENABLE_H263P_ENCODER || ENABLE_FLV_ENCODER)
2042
            s->gob_index = ff_h263_get_gob_height(s);
2043
        break;
2044
    case CODEC_ID_MPEG4:
2045
        if(ENABLE_MPEG4_ENCODER && s->partitioned_frame)
2046
            ff_mpeg4_init_partitions(s);
2047
        break;
2048
    }
2049

    
2050
    s->resync_mb_x=0;
2051
    s->resync_mb_y=0;
2052
    s->first_slice_line = 1;
2053
    s->ptr_lastgob = s->pb.buf;
2054
    for(mb_y= s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2055
//    printf("row %d at %X\n", s->mb_y, (int)s);
2056
        s->mb_x=0;
2057
        s->mb_y= mb_y;
2058

    
2059
        ff_set_qscale(s, s->qscale);
2060
        ff_init_block_index(s);
2061

    
2062
        for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2063
            int xy= mb_y*s->mb_stride + mb_x; // removed const, H261 needs to adjust this
2064
            int mb_type= s->mb_type[xy];
2065
//            int d;
2066
            int dmin= INT_MAX;
2067
            int dir;
2068

    
2069
            if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < MAX_MB_BYTES){
2070
                av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2071
                return -1;
2072
            }
2073
            if(s->data_partitioning){
2074
                if(   s->pb2   .buf_end - s->pb2   .buf - (put_bits_count(&s->    pb2)>>3) < MAX_MB_BYTES
2075
                   || s->tex_pb.buf_end - s->tex_pb.buf - (put_bits_count(&s->tex_pb )>>3) < MAX_MB_BYTES){
2076
                    av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2077
                    return -1;
2078
                }
2079
            }
2080

    
2081
            s->mb_x = mb_x;
2082
            s->mb_y = mb_y;  // moved into loop, can get changed by H.261
2083
            ff_update_block_index(s);
2084

    
2085
            if(ENABLE_H261_ENCODER && s->codec_id == CODEC_ID_H261){
2086
                ff_h261_reorder_mb_index(s);
2087
                xy= s->mb_y*s->mb_stride + s->mb_x;
2088
                mb_type= s->mb_type[xy];
2089
            }
2090

    
2091
            /* write gob / video packet header  */
2092
            if(s->rtp_mode){
2093
                int current_packet_size, is_gob_start;
2094

    
2095
                current_packet_size= ((put_bits_count(&s->pb)+7)>>3) - (s->ptr_lastgob - s->pb.buf);
2096

    
2097
                is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0;
2098

    
2099
                if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1;
2100

    
2101
                switch(s->codec_id){
2102
                case CODEC_ID_H263:
2103
                case CODEC_ID_H263P:
2104
                    if(!s->h263_slice_structured)
2105
                        if(s->mb_x || s->mb_y%s->gob_index) is_gob_start=0;
2106
                    break;
2107
                case CODEC_ID_MPEG2VIDEO:
2108
                    if(s->mb_x==0 && s->mb_y!=0) is_gob_start=1;
2109
                case CODEC_ID_MPEG1VIDEO:
2110
                    if(s->mb_skip_run) is_gob_start=0;
2111
                    break;
2112
                }
2113

    
2114
                if(is_gob_start){
2115
                    if(s->start_mb_y != mb_y || mb_x!=0){
2116
                        write_slice_end(s);
2117

    
2118
                        if(ENABLE_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){
2119
                            ff_mpeg4_init_partitions(s);
2120
                        }
2121
                    }
2122

    
2123
                    assert((put_bits_count(&s->pb)&7) == 0);
2124
                    current_packet_size= pbBufPtr(&s->pb) - s->ptr_lastgob;
2125

    
2126
                    if(s->avctx->error_rate && s->resync_mb_x + s->resync_mb_y > 0){
2127
                        int r= put_bits_count(&s->pb)/8 + s->picture_number + 16 + s->mb_x + s->mb_y;
2128
                        int d= 100 / s->avctx->error_rate;
2129
                        if(r % d == 0){
2130
                            current_packet_size=0;
2131
#ifndef ALT_BITSTREAM_WRITER
2132
                            s->pb.buf_ptr= s->ptr_lastgob;
2133
#endif
2134
                            assert(pbBufPtr(&s->pb) == s->ptr_lastgob);
2135
                        }
2136
                    }
2137

    
2138
                    if (s->avctx->rtp_callback){
2139
                        int number_mb = (mb_y - s->resync_mb_y)*s->mb_width + mb_x - s->resync_mb_x;
2140
                        s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, current_packet_size, number_mb);
2141
                    }
2142

    
2143
                    switch(s->codec_id){
2144
                    case CODEC_ID_MPEG4:
2145
                        if (ENABLE_MPEG4_ENCODER) {
2146
                            ff_mpeg4_encode_video_packet_header(s);
2147
                            ff_mpeg4_clean_buffers(s);
2148
                        }
2149
                    break;
2150
                    case CODEC_ID_MPEG1VIDEO:
2151
                    case CODEC_ID_MPEG2VIDEO:
2152
                        if (ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER) {
2153
                            ff_mpeg1_encode_slice_header(s);
2154
                            ff_mpeg1_clean_buffers(s);
2155
                        }
2156
                    break;
2157
                    case CODEC_ID_H263:
2158
                    case CODEC_ID_H263P:
2159
                        if (ENABLE_H263_ENCODER || ENABLE_H263P_ENCODER)
2160
                            h263_encode_gob_header(s, mb_y);
2161
                    break;
2162
                    }
2163

    
2164
                    if(s->flags&CODEC_FLAG_PASS1){
2165
                        int bits= put_bits_count(&s->pb);
2166
                        s->misc_bits+= bits - s->last_bits;
2167
                        s->last_bits= bits;
2168
                    }
2169

    
2170
                    s->ptr_lastgob += current_packet_size;
2171
                    s->first_slice_line=1;
2172
                    s->resync_mb_x=mb_x;
2173
                    s->resync_mb_y=mb_y;
2174
                }
2175
            }
2176

    
2177
            if(  (s->resync_mb_x   == s->mb_x)
2178
               && s->resync_mb_y+1 == s->mb_y){
2179
                s->first_slice_line=0;
2180
            }
2181

    
2182
            s->mb_skipped=0;
2183
            s->dquant=0; //only for QP_RD
2184

    
2185
            if(mb_type & (mb_type-1) || (s->flags & CODEC_FLAG_QP_RD)){ // more than 1 MB type possible or CODEC_FLAG_QP_RD
2186
                int next_block=0;
2187
                int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
2188

    
2189
                copy_context_before_encode(&backup_s, s, -1);
2190
                backup_s.pb= s->pb;
2191
                best_s.data_partitioning= s->data_partitioning;
2192
                best_s.partitioned_frame= s->partitioned_frame;
2193
                if(s->data_partitioning){
2194
                    backup_s.pb2= s->pb2;
2195
                    backup_s.tex_pb= s->tex_pb;
2196
                }
2197

    
2198
                if(mb_type&CANDIDATE_MB_TYPE_INTER){
2199
                    s->mv_dir = MV_DIR_FORWARD;
2200
                    s->mv_type = MV_TYPE_16X16;
2201
                    s->mb_intra= 0;
2202
                    s->mv[0][0][0] = s->p_mv_table[xy][0];
2203
                    s->mv[0][0][1] = s->p_mv_table[xy][1];
2204
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER, pb, pb2, tex_pb,
2205
                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2206
                }
2207
                if(mb_type&CANDIDATE_MB_TYPE_INTER_I){
2208
                    s->mv_dir = MV_DIR_FORWARD;
2209
                    s->mv_type = MV_TYPE_FIELD;
2210
                    s->mb_intra= 0;
2211
                    for(i=0; i<2; i++){
2212
                        j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2213
                        s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2214
                        s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2215
                    }
2216
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER_I, pb, pb2, tex_pb,
2217
                                 &dmin, &next_block, 0, 0);
2218
                }
2219
                if(mb_type&CANDIDATE_MB_TYPE_SKIPPED){
2220
                    s->mv_dir = MV_DIR_FORWARD;
2221
                    s->mv_type = MV_TYPE_16X16;
2222
                    s->mb_intra= 0;
2223
                    s->mv[0][0][0] = 0;
2224
                    s->mv[0][0][1] = 0;
2225
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_SKIPPED, pb, pb2, tex_pb,
2226
                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2227
                }
2228
                if(mb_type&CANDIDATE_MB_TYPE_INTER4V){
2229
                    s->mv_dir = MV_DIR_FORWARD;
2230
                    s->mv_type = MV_TYPE_8X8;
2231
                    s->mb_intra= 0;
2232
                    for(i=0; i<4; i++){
2233
                        s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2234
                        s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2235
                    }
2236
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER4V, pb, pb2, tex_pb,
2237
                                 &dmin, &next_block, 0, 0);
2238
                }
2239
                if(mb_type&CANDIDATE_MB_TYPE_FORWARD){
2240
                    s->mv_dir = MV_DIR_FORWARD;
2241
                    s->mv_type = MV_TYPE_16X16;
2242
                    s->mb_intra= 0;
2243
                    s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2244
                    s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2245
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD, pb, pb2, tex_pb,
2246
                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2247
                }
2248
                if(mb_type&CANDIDATE_MB_TYPE_BACKWARD){
2249
                    s->mv_dir = MV_DIR_BACKWARD;
2250
                    s->mv_type = MV_TYPE_16X16;
2251
                    s->mb_intra= 0;
2252
                    s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2253
                    s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2254
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD, pb, pb2, tex_pb,
2255
                                 &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
2256
                }
2257
                if(mb_type&CANDIDATE_MB_TYPE_BIDIR){
2258
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2259
                    s->mv_type = MV_TYPE_16X16;
2260
                    s->mb_intra= 0;
2261
                    s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2262
                    s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2263
                    s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2264
                    s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2265
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb,
2266
                                 &dmin, &next_block, 0, 0);
2267
                }
2268
                if(mb_type&CANDIDATE_MB_TYPE_FORWARD_I){
2269
                    s->mv_dir = MV_DIR_FORWARD;
2270
                    s->mv_type = MV_TYPE_FIELD;
2271
                    s->mb_intra= 0;
2272
                    for(i=0; i<2; i++){
2273
                        j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2274
                        s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2275
                        s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2276
                    }
2277
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD_I, pb, pb2, tex_pb,
2278
                                 &dmin, &next_block, 0, 0);
2279
                }
2280
                if(mb_type&CANDIDATE_MB_TYPE_BACKWARD_I){
2281
                    s->mv_dir = MV_DIR_BACKWARD;
2282
                    s->mv_type = MV_TYPE_FIELD;
2283
                    s->mb_intra= 0;
2284
                    for(i=0; i<2; i++){
2285
                        j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2286
                        s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2287
                        s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2288
                    }
2289
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD_I, pb, pb2, tex_pb,
2290
                                 &dmin, &next_block, 0, 0);
2291
                }
2292
                if(mb_type&CANDIDATE_MB_TYPE_BIDIR_I){
2293
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2294
                    s->mv_type = MV_TYPE_FIELD;
2295
                    s->mb_intra= 0;
2296
                    for(dir=0; dir<2; dir++){
2297
                        for(i=0; i<2; i++){
2298
                            j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2299
                            s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2300
                            s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2301
                        }
2302
                    }
2303
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR_I, pb, pb2, tex_pb,
2304
                                 &dmin, &next_block, 0, 0);
2305
                }
2306
                if(mb_type&CANDIDATE_MB_TYPE_INTRA){
2307
                    s->mv_dir = 0;
2308
                    s->mv_type = MV_TYPE_16X16;
2309
                    s->mb_intra= 1;
2310
                    s->mv[0][0][0] = 0;
2311
                    s->mv[0][0][1] = 0;
2312
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTRA, pb, pb2, tex_pb,
2313
                                 &dmin, &next_block, 0, 0);
2314
                    if(s->h263_pred || s->h263_aic){
2315
                        if(best_s.mb_intra)
2316
                            s->mbintra_table[mb_x + mb_y*s->mb_stride]=1;
2317
                        else
2318
                            ff_clean_intra_table_entries(s); //old mode?
2319
                    }
2320
                }
2321

    
2322
                if((s->flags & CODEC_FLAG_QP_RD) && dmin < INT_MAX){
2323
                    if(best_s.mv_type==MV_TYPE_16X16){ //FIXME move 4mv after QPRD
2324
                        const int last_qp= backup_s.qscale;
2325
                        int qpi, qp, dc[6];
2326
                        DCTELEM ac[6][16];
2327
                        const int mvdir= (best_s.mv_dir&MV_DIR_BACKWARD) ? 1 : 0;
2328
                        static const int dquant_tab[4]={-1,1,-2,2};
2329

    
2330
                        assert(backup_s.dquant == 0);
2331

    
2332
                        //FIXME intra
2333
                        s->mv_dir= best_s.mv_dir;
2334
                        s->mv_type = MV_TYPE_16X16;
2335
                        s->mb_intra= best_s.mb_intra;
2336
                        s->mv[0][0][0] = best_s.mv[0][0][0];
2337
                        s->mv[0][0][1] = best_s.mv[0][0][1];
2338
                        s->mv[1][0][0] = best_s.mv[1][0][0];
2339
                        s->mv[1][0][1] = best_s.mv[1][0][1];
2340

    
2341
                        qpi = s->pict_type == B_TYPE ? 2 : 0;
2342
                        for(; qpi<4; qpi++){
2343
                            int dquant= dquant_tab[qpi];
2344
                            qp= last_qp + dquant;
2345
                            if(qp < s->avctx->qmin || qp > s->avctx->qmax)
2346
                                continue;
2347
                            backup_s.dquant= dquant;
2348
                            if(s->mb_intra && s->dc_val[0]){
2349
                                for(i=0; i<6; i++){
2350
                                    dc[i]= s->dc_val[0][ s->block_index[i] ];
2351
                                    memcpy(ac[i], s->ac_val[0][s->block_index[i]], sizeof(DCTELEM)*16);
2352
                                }
2353
                            }
2354

    
2355
                            encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2356
                                         &dmin, &next_block, s->mv[mvdir][0][0], s->mv[mvdir][0][1]);
2357
                            if(best_s.qscale != qp){
2358
                                if(s->mb_intra && s->dc_val[0]){
2359
                                    for(i=0; i<6; i++){
2360
                                        s->dc_val[0][ s->block_index[i] ]= dc[i];
2361
                                        memcpy(s->ac_val[0][s->block_index[i]], ac[i], sizeof(DCTELEM)*16);
2362
                                    }
2363
                                }
2364
                            }
2365
                        }
2366
                    }
2367
                }
2368
                if(ENABLE_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT){
2369
                    int mx= s->b_direct_mv_table[xy][0];
2370
                    int my= s->b_direct_mv_table[xy][1];
2371

    
2372
                    backup_s.dquant = 0;
2373
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2374
                    s->mb_intra= 0;
2375
                    ff_mpeg4_set_direct_mv(s, mx, my);
2376
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2377
                                 &dmin, &next_block, mx, my);
2378
                }
2379
                if(ENABLE_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT0){
2380
                    backup_s.dquant = 0;
2381
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2382
                    s->mb_intra= 0;
2383
                    ff_mpeg4_set_direct_mv(s, 0, 0);
2384
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2385
                                 &dmin, &next_block, 0, 0);
2386
                }
2387
                if(!best_s.mb_intra && s->flags2&CODEC_FLAG2_SKIP_RD){
2388
                    int coded=0;
2389
                    for(i=0; i<6; i++)
2390
                        coded |= s->block_last_index[i];
2391
                    if(coded){
2392
                        int mx,my;
2393
                        memcpy(s->mv, best_s.mv, sizeof(s->mv));
2394
                        if(ENABLE_MPEG4_ENCODER && best_s.mv_dir & MV_DIRECT){
2395
                            mx=my=0; //FIXME find the one we actually used
2396
                            ff_mpeg4_set_direct_mv(s, mx, my);
2397
                        }else if(best_s.mv_dir&MV_DIR_BACKWARD){
2398
                            mx= s->mv[1][0][0];
2399
                            my= s->mv[1][0][1];
2400
                        }else{
2401
                            mx= s->mv[0][0][0];
2402
                            my= s->mv[0][0][1];
2403
                        }
2404

    
2405
                        s->mv_dir= best_s.mv_dir;
2406
                        s->mv_type = best_s.mv_type;
2407
                        s->mb_intra= 0;
2408
/*                        s->mv[0][0][0] = best_s.mv[0][0][0];
2409
                        s->mv[0][0][1] = best_s.mv[0][0][1];
2410
                        s->mv[1][0][0] = best_s.mv[1][0][0];
2411
                        s->mv[1][0][1] = best_s.mv[1][0][1];*/
2412
                        backup_s.dquant= 0;
2413
                        s->skipdct=1;
2414
                        encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2415
                                        &dmin, &next_block, mx, my);
2416
                        s->skipdct=0;
2417
                    }
2418
                }
2419

    
2420
                s->current_picture.qscale_table[xy]= best_s.qscale;
2421

    
2422
                copy_context_after_encode(s, &best_s, -1);
2423

    
2424
                pb_bits_count= put_bits_count(&s->pb);
2425
                flush_put_bits(&s->pb);
2426
                ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
2427
                s->pb= backup_s.pb;
2428

    
2429
                if(s->data_partitioning){
2430
                    pb2_bits_count= put_bits_count(&s->pb2);
2431
                    flush_put_bits(&s->pb2);
2432
                    ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
2433
                    s->pb2= backup_s.pb2;
2434

    
2435
                    tex_pb_bits_count= put_bits_count(&s->tex_pb);
2436
                    flush_put_bits(&s->tex_pb);
2437
                    ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
2438
                    s->tex_pb= backup_s.tex_pb;
2439
                }
2440
                s->last_bits= put_bits_count(&s->pb);
2441

    
2442
                if (ENABLE_ANY_H263_ENCODER &&
2443
                    s->out_format == FMT_H263 && s->pict_type!=B_TYPE)
2444
                    ff_h263_update_motion_val(s);
2445

    
2446
                if(next_block==0){ //FIXME 16 vs linesize16
2447
                    s->dsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad                     , s->linesize  ,16);
2448
                    s->dsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize    , s->uvlinesize, 8);
2449
                    s->dsp.put_pixels_tab[1][0](s->dest[2], s->rd_scratchpad + 16*s->linesize + 8, s->uvlinesize, 8);
2450
                }
2451

    
2452
                if(s->avctx->mb_decision == FF_MB_DECISION_BITS)
2453
                    MPV_decode_mb(s, s->block);
2454
            } else {
2455
                int motion_x = 0, motion_y = 0;
2456
                s->mv_type=MV_TYPE_16X16;
2457
                // only one MB-Type possible
2458

    
2459
                switch(mb_type){
2460
                case CANDIDATE_MB_TYPE_INTRA:
2461
                    s->mv_dir = 0;
2462
                    s->mb_intra= 1;
2463
                    motion_x= s->mv[0][0][0] = 0;
2464
                    motion_y= s->mv[0][0][1] = 0;
2465
                    break;
2466
                case CANDIDATE_MB_TYPE_INTER:
2467
                    s->mv_dir = MV_DIR_FORWARD;
2468
                    s->mb_intra= 0;
2469
                    motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
2470
                    motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
2471
                    break;
2472
                case CANDIDATE_MB_TYPE_INTER_I:
2473
                    s->mv_dir = MV_DIR_FORWARD;
2474
                    s->mv_type = MV_TYPE_FIELD;
2475
                    s->mb_intra= 0;
2476
                    for(i=0; i<2; i++){
2477
                        j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2478
                        s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2479
                        s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2480
                    }
2481
                    break;
2482
                case CANDIDATE_MB_TYPE_INTER4V:
2483
                    s->mv_dir = MV_DIR_FORWARD;
2484
                    s->mv_type = MV_TYPE_8X8;
2485
                    s->mb_intra= 0;
2486
                    for(i=0; i<4; i++){
2487
                        s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2488
                        s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2489
                    }
2490
                    break;
2491
                case CANDIDATE_MB_TYPE_DIRECT:
2492
                    if (ENABLE_MPEG4_ENCODER) {
2493
                        s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2494
                        s->mb_intra= 0;
2495
                        motion_x=s->b_direct_mv_table[xy][0];
2496
                        motion_y=s->b_direct_mv_table[xy][1];
2497
                        ff_mpeg4_set_direct_mv(s, motion_x, motion_y);
2498
                    }
2499
                    break;
2500
                case CANDIDATE_MB_TYPE_DIRECT0:
2501
                    if (ENABLE_MPEG4_ENCODER) {
2502
                        s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2503
                        s->mb_intra= 0;
2504
                        ff_mpeg4_set_direct_mv(s, 0, 0);
2505
                    }
2506
                    break;
2507
                case CANDIDATE_MB_TYPE_BIDIR:
2508
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2509
                    s->mb_intra= 0;
2510
                    s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2511
                    s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2512
                    s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2513
                    s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2514
                    break;
2515
                case CANDIDATE_MB_TYPE_BACKWARD:
2516
                    s->mv_dir = MV_DIR_BACKWARD;
2517
                    s->mb_intra= 0;
2518
                    motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2519
                    motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2520
                    break;
2521
                case CANDIDATE_MB_TYPE_FORWARD:
2522
                    s->mv_dir = MV_DIR_FORWARD;
2523
                    s->mb_intra= 0;
2524
                    motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2525
                    motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2526
//                    printf(" %d %d ", motion_x, motion_y);
2527
                    break;
2528
                case CANDIDATE_MB_TYPE_FORWARD_I:
2529
                    s->mv_dir = MV_DIR_FORWARD;
2530
                    s->mv_type = MV_TYPE_FIELD;
2531
                    s->mb_intra= 0;
2532
                    for(i=0; i<2; i++){
2533
                        j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2534
                        s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2535
                        s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2536
                    }
2537
                    break;
2538
                case CANDIDATE_MB_TYPE_BACKWARD_I:
2539
                    s->mv_dir = MV_DIR_BACKWARD;
2540
                    s->mv_type = MV_TYPE_FIELD;
2541
                    s->mb_intra= 0;
2542
                    for(i=0; i<2; i++){
2543
                        j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2544
                        s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2545
                        s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2546
                    }
2547
                    break;
2548
                case CANDIDATE_MB_TYPE_BIDIR_I:
2549
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2550
                    s->mv_type = MV_TYPE_FIELD;
2551
                    s->mb_intra= 0;
2552
                    for(dir=0; dir<2; dir++){
2553
                        for(i=0; i<2; i++){
2554
                            j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2555
                            s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2556
                            s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2557
                        }
2558
                    }
2559
                    break;
2560
                default:
2561
                    av_log(s->avctx, AV_LOG_ERROR, "illegal MB type\n");
2562
                }
2563

    
2564
                encode_mb(s, motion_x, motion_y);
2565

    
2566
                // RAL: Update last macroblock type
2567
                s->last_mv_dir = s->mv_dir;
2568

    
2569
                if (ENABLE_ANY_H263_ENCODER &&
2570
                    s->out_format == FMT_H263 && s->pict_type!=B_TYPE)
2571
                    ff_h263_update_motion_val(s);
2572

    
2573
                MPV_decode_mb(s, s->block);
2574
            }
2575

    
2576
            /* clean the MV table in IPS frames for direct mode in B frames */
2577
            if(s->mb_intra /* && I,P,S_TYPE */){
2578
                s->p_mv_table[xy][0]=0;
2579
                s->p_mv_table[xy][1]=0;
2580
            }
2581

    
2582
            if(s->flags&CODEC_FLAG_PSNR){
2583
                int w= 16;
2584
                int h= 16;
2585

    
2586
                if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
2587
                if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
2588

    
2589
                s->current_picture.error[0] += sse(
2590
                    s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16,
2591
                    s->dest[0], w, h, s->linesize);
2592
                s->current_picture.error[1] += sse(
2593
                    s, s->new_picture.data[1] + s->mb_x*8  + s->mb_y*s->uvlinesize*8,
2594
                    s->dest[1], w>>1, h>>1, s->uvlinesize);
2595
                s->current_picture.error[2] += sse(
2596
                    s, s->new_picture    .data[2] + s->mb_x*8  + s->mb_y*s->uvlinesize*8,
2597
                    s->dest[2], w>>1, h>>1, s->uvlinesize);
2598
            }
2599
            if(s->loop_filter){
2600
                if(ENABLE_ANY_H263_ENCODER && s->out_format == FMT_H263)
2601
                    ff_h263_loop_filter(s);
2602
            }
2603
//printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, put_bits_count(&s->pb));
2604
        }
2605
    }
2606

    
2607
    //not beautiful here but we must write it before flushing so it has to be here
2608
    if (ENABLE_MSMPEG4_ENCODER && s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == I_TYPE)
2609
        msmpeg4_encode_ext_header(s);
2610

    
2611
    write_slice_end(s);
2612

    
2613
    /* Send the last GOB if RTP */
2614
    if (s->avctx->rtp_callback) {
2615
        int number_mb = (mb_y - s->resync_mb_y)*s->mb_width - s->resync_mb_x;
2616
        pdif = pbBufPtr(&s->pb) - s->ptr_lastgob;
2617
        /* Call the RTP callback to send the last GOB */
2618
        emms_c();
2619
        s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, pdif, number_mb);
2620
    }
2621

    
2622
    return 0;
2623
}
2624

    
2625
#define MERGE(field) dst->field += src->field; src->field=0
2626
static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src){
2627
    MERGE(me.scene_change_score);
2628
    MERGE(me.mc_mb_var_sum_temp);
2629
    MERGE(me.mb_var_sum_temp);
2630
}
2631

    
2632
static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src){
2633
    int i;
2634

    
2635
    MERGE(dct_count[0]); //note, the other dct vars are not part of the context
2636
    MERGE(dct_count[1]);
2637
    MERGE(mv_bits);
2638
    MERGE(i_tex_bits);
2639
    MERGE(p_tex_bits);
2640
    MERGE(i_count);
2641
    MERGE(f_count);
2642
    MERGE(b_count);
2643
    MERGE(skip_count);
2644
    MERGE(misc_bits);
2645
    MERGE(error_count);
2646
    MERGE(padding_bug_score);
2647
    MERGE(current_picture.error[0]);
2648
    MERGE(current_picture.error[1]);
2649
    MERGE(current_picture.error[2]);
2650

    
2651
    if(dst->avctx->noise_reduction){
2652
        for(i=0; i<64; i++){
2653
            MERGE(dct_error_sum[0][i]);
2654
            MERGE(dct_error_sum[1][i]);
2655
        }
2656
    }
2657

    
2658
    assert(put_bits_count(&src->pb) % 8 ==0);
2659
    assert(put_bits_count(&dst->pb) % 8 ==0);
2660
    ff_copy_bits(&dst->pb, src->pb.buf, put_bits_count(&src->pb));
2661
    flush_put_bits(&dst->pb);
2662
}
2663

    
2664
static int estimate_qp(MpegEncContext *s, int dry_run){
2665
    if (s->next_lambda){
2666
        s->current_picture_ptr->quality=
2667
        s->current_picture.quality = s->next_lambda;
2668
        if(!dry_run) s->next_lambda= 0;
2669
    } else if (!s->fixed_qscale) {
2670
        s->current_picture_ptr->quality=
2671
        s->current_picture.quality = ff_rate_estimate_qscale(s, dry_run);
2672
        if (s->current_picture.quality < 0)
2673
            return -1;
2674
    }
2675

    
2676
    if(s->adaptive_quant){
2677
        switch(s->codec_id){
2678
        case CODEC_ID_MPEG4:
2679
            if (ENABLE_MPEG4_ENCODER)
2680
                ff_clean_mpeg4_qscales(s);
2681
            break;
2682
        case CODEC_ID_H263:
2683
        case CODEC_ID_H263P:
2684
        case CODEC_ID_FLV1:
2685
            if (ENABLE_H263_ENCODER||ENABLE_H263P_ENCODER||ENABLE_FLV_ENCODER)
2686
                ff_clean_h263_qscales(s);
2687
            break;
2688
        }
2689

    
2690
        s->lambda= s->lambda_table[0];
2691
        //FIXME broken
2692
    }else
2693
        s->lambda= s->current_picture.quality;
2694
//printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality);
2695
    update_qscale(s);
2696
    return 0;
2697
}
2698

    
2699
/* must be called before writing the header */
2700
static void set_frame_distances(MpegEncContext * s){
2701
    assert(s->current_picture_ptr->pts != AV_NOPTS_VALUE);
2702
    s->time= s->current_picture_ptr->pts*s->avctx->time_base.num;
2703

    
2704
    if(s->pict_type==B_TYPE){
2705
        s->pb_time= s->pp_time - (s->last_non_b_time - s->time);
2706
        assert(s->pb_time > 0 && s->pb_time < s->pp_time);
2707
    }else{
2708
        s->pp_time= s->time - s->last_non_b_time;
2709
        s->last_non_b_time= s->time;
2710
        assert(s->picture_number==0 || s->pp_time > 0);
2711
    }
2712
}
2713

    
2714
static int encode_picture(MpegEncContext *s, int picture_number)
2715
{
2716
    int i;
2717
    int bits;
2718

    
2719
    s->picture_number = picture_number;
2720

    
2721
    /* Reset the average MB variance */
2722
    s->me.mb_var_sum_temp    =
2723
    s->me.mc_mb_var_sum_temp = 0;
2724

    
2725
    /* we need to initialize some time vars before we can encode b-frames */
2726
    // RAL: Condition added for MPEG1VIDEO
2727
    if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->h263_msmpeg4))
2728
        set_frame_distances(s);
2729
    if(ENABLE_MPEG4_ENCODER && s->codec_id == CODEC_ID_MPEG4)
2730
        ff_set_mpeg4_time(s);
2731

    
2732
    s->me.scene_change_score=0;
2733

    
2734
//    s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME ratedistoration
2735

    
2736
    if(s->pict_type==I_TYPE){
2737
        if(s->msmpeg4_version >= 3) s->no_rounding=1;
2738
        else                        s->no_rounding=0;
2739
    }else if(s->pict_type!=B_TYPE){
2740
        if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
2741
            s->no_rounding ^= 1;
2742
    }
2743

    
2744
    if(s->flags & CODEC_FLAG_PASS2){
2745
        if (estimate_qp(s,1) < 0)
2746
            return -1;
2747
        ff_get_2pass_fcode(s);
2748
    }else if(!(s->flags & CODEC_FLAG_QSCALE)){
2749
        if(s->pict_type==B_TYPE)
2750
            s->lambda= s->last_lambda_for[s->pict_type];
2751
        else
2752
            s->lambda= s->last_lambda_for[s->last_non_b_pict_type];
2753
        update_qscale(s);
2754
    }
2755

    
2756
    s->mb_intra=0; //for the rate distortion & bit compare functions
2757
    for(i=1; i<s->avctx->thread_count; i++){
2758
        ff_update_duplicate_context(s->thread_context[i], s);
2759
    }
2760

    
2761
    ff_init_me(s);
2762

    
2763
    /* Estimate motion for every MB */
2764
    if(s->pict_type != I_TYPE){
2765
        s->lambda = (s->lambda * s->avctx->me_penalty_compensation + 128)>>8;
2766
        s->lambda2= (s->lambda2* (int64_t)s->avctx->me_penalty_compensation + 128)>>8;
2767
        if(s->pict_type != B_TYPE && s->avctx->me_threshold==0){
2768
            if((s->avctx->pre_me && s->last_non_b_pict_type==I_TYPE) || s->avctx->pre_me==2){
2769
                s->avctx->execute(s->avctx, pre_estimate_motion_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
2770
            }
2771
        }
2772

    
2773
        s->avctx->execute(s->avctx, estimate_motion_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
2774
    }else /* if(s->pict_type == I_TYPE) */{
2775
        /* I-Frame */
2776
        for(i=0; i<s->mb_stride*s->mb_height; i++)
2777
            s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2778

    
2779
        if(!s->fixed_qscale){
2780
            /* finding spatial complexity for I-frame rate control */
2781
            s->avctx->execute(s->avctx, mb_var_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
2782
        }
2783
    }
2784
    for(i=1; i<s->avctx->thread_count; i++){
2785
        merge_context_after_me(s, s->thread_context[i]);
2786
    }
2787
    s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum= s->me.mc_mb_var_sum_temp;
2788
    s->current_picture.   mb_var_sum= s->current_picture_ptr->   mb_var_sum= s->me.   mb_var_sum_temp;
2789
    emms_c();
2790

    
2791
    if(s->me.scene_change_score > s->avctx->scenechange_threshold && s->pict_type == P_TYPE){
2792
        s->pict_type= I_TYPE;
2793
        for(i=0; i<s->mb_stride*s->mb_height; i++)
2794
            s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2795
//printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum);
2796
    }
2797

    
2798
    if(!s->umvplus){
2799
        if(s->pict_type==P_TYPE || s->pict_type==S_TYPE) {
2800
            s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER);
2801

    
2802
            if(s->flags & CODEC_FLAG_INTERLACED_ME){
2803
                int a,b;
2804
                a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select
2805
                b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I);
2806
                s->f_code= FFMAX(s->f_code, FFMAX(a,b));
2807
            }
2808

    
2809
            ff_fix_long_p_mvs(s);
2810
            ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0);
2811
            if(s->flags & CODEC_FLAG_INTERLACED_ME){
2812
                int j;
2813
                for(i=0; i<2; i++){
2814
                    for(j=0; j<2; j++)
2815
                        ff_fix_long_mvs(s, s->p_field_select_table[i], j,
2816
                                        s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0);
2817
                }
2818
            }
2819
        }
2820

    
2821
        if(s->pict_type==B_TYPE){
2822
            int a, b;
2823

    
2824
            a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD);
2825
            b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2826
            s->f_code = FFMAX(a, b);
2827

    
2828
            a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD);
2829
            b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2830
            s->b_code = FFMAX(a, b);
2831

    
2832
            ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1);
2833
            ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1);
2834
            ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2835
            ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2836
            if(s->flags & CODEC_FLAG_INTERLACED_ME){
2837
                int dir, j;
2838
                for(dir=0; dir<2; dir++){
2839
                    for(i=0; i<2; i++){
2840
                        for(j=0; j<2; j++){
2841
                            int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I)
2842
                                          : (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I);
2843
                            ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j,
2844
                                            s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1);
2845
                        }
2846
                    }
2847
                }
2848
            }
2849
        }
2850
    }
2851

    
2852
    if (estimate_qp(s, 0) < 0)
2853
        return -1;
2854

    
2855
    if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==I_TYPE && !(s->flags & CODEC_FLAG_QSCALE))
2856
        s->qscale= 3; //reduce clipping problems
2857

    
2858
    if (s->out_format == FMT_MJPEG) {
2859
        /* for mjpeg, we do include qscale in the matrix */
2860
        s->intra_matrix[0] = ff_mpeg1_default_intra_matrix[0];
2861
        for(i=1;i<64;i++){
2862
            int j= s->dsp.idct_permutation[i];
2863

    
2864
            s->intra_matrix[j] = av_clip_uint8((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
2865
        }
2866
        ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
2867
                       s->intra_matrix, s->intra_quant_bias, 8, 8, 1);
2868
        s->qscale= 8;
2869
    }
2870

    
2871
    //FIXME var duplication
2872
    s->current_picture_ptr->key_frame=
2873
    s->current_picture.key_frame= s->pict_type == I_TYPE; //FIXME pic_ptr
2874
    s->current_picture_ptr->pict_type=
2875
    s->current_picture.pict_type= s->pict_type;
2876

    
2877
    if(s->current_picture.key_frame)
2878
        s->picture_in_gop_number=0;
2879

    
2880
    s->last_bits= put_bits_count(&s->pb);
2881
    switch(s->out_format) {
2882
    case FMT_MJPEG:
2883
        if (ENABLE_MJPEG_ENCODER)
2884
            ff_mjpeg_encode_picture_header(s);
2885
        break;
2886
    case FMT_H261:
2887
        if (ENABLE_H261_ENCODER)
2888
            ff_h261_encode_picture_header(s, picture_number);
2889
        break;
2890
    case FMT_H263:
2891
        if (ENABLE_WMV2_ENCODER && s->codec_id == CODEC_ID_WMV2)
2892
            ff_wmv2_encode_picture_header(s, picture_number);
2893
        else if (ENABLE_MSMPEG4_ENCODER && s->h263_msmpeg4)
2894
            msmpeg4_encode_picture_header(s, picture_number);
2895
        else if (ENABLE_MPEG4_ENCODER && s->h263_pred)
2896
            mpeg4_encode_picture_header(s, picture_number);
2897
        else if (ENABLE_RV10_ENCODER && s->codec_id == CODEC_ID_RV10)
2898
            rv10_encode_picture_header(s, picture_number);
2899
        else if (ENABLE_RV20_ENCODER && s->codec_id == CODEC_ID_RV20)
2900
            rv20_encode_picture_header(s, picture_number);
2901
        else if (ENABLE_FLV_ENCODER && s->codec_id == CODEC_ID_FLV1)
2902
            ff_flv_encode_picture_header(s, picture_number);
2903
        else if (ENABLE_ANY_H263_ENCODER)
2904
            h263_encode_picture_header(s, picture_number);
2905
        break;
2906
    case FMT_MPEG1:
2907
        if (ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER)
2908
            mpeg1_encode_picture_header(s, picture_number);
2909
        break;
2910
    case FMT_H264:
2911
        break;
2912
    default:
2913
        assert(0);
2914
    }
2915
    bits= put_bits_count(&s->pb);
2916
    s->header_bits= bits - s->last_bits;
2917

    
2918
    for(i=1; i<s->avctx->thread_count; i++){
2919
        update_duplicate_context_after_me(s->thread_context[i], s);
2920
    }
2921
    s->avctx->execute(s->avctx, encode_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
2922
    for(i=1; i<s->avctx->thread_count; i++){
2923
        merge_context_after_encode(s, s->thread_context[i]);
2924
    }
2925
    emms_c();
2926
    return 0;
2927
}
2928

    
2929
void  denoise_dct_c(MpegEncContext *s, DCTELEM *block){
2930
    const int intra= s->mb_intra;
2931
    int i;
2932

    
2933
    s->dct_count[intra]++;
2934

    
2935
    for(i=0; i<64; i++){
2936
        int level= block[i];
2937

    
2938
        if(level){
2939
            if(level>0){
2940
                s->dct_error_sum[intra][i] += level;
2941
                level -= s->dct_offset[intra][i];
2942
                if(level<0) level=0;
2943
            }else{
2944
                s->dct_error_sum[intra][i] -= level;
2945
                level += s->dct_offset[intra][i];
2946
                if(level>0) level=0;
2947
            }
2948
            block[i]= level;
2949
        }
2950
    }
2951
}
2952

    
2953
int dct_quantize_trellis_c(MpegEncContext *s,
2954
                        DCTELEM *block, int n,
2955
                        int qscale, int *overflow){
2956
    const int *qmat;
2957
    const uint8_t *scantable= s->intra_scantable.scantable;
2958
    const uint8_t *perm_scantable= s->intra_scantable.permutated;
2959
    int max=0;
2960
    unsigned int threshold1, threshold2;
2961
    int bias=0;
2962
    int run_tab[65];
2963
    int level_tab[65];
2964
    int score_tab[65];
2965
    int survivor[65];
2966
    int survivor_count;
2967
    int last_run=0;
2968
    int last_level=0;
2969
    int last_score= 0;
2970
    int last_i;
2971
    int coeff[2][64];
2972
    int coeff_count[64];
2973
    int qmul, qadd, start_i, last_non_zero, i, dc;
2974
    const int esc_length= s->ac_esc_length;
2975
    uint8_t * length;
2976
    uint8_t * last_length;
2977
    const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6);
2978

    
2979
    s->dsp.fdct (block);
2980

    
2981
    if(s->dct_error_sum)
2982
        s->denoise_dct(s, block);
2983
    qmul= qscale*16;
2984
    qadd= ((qscale-1)|1)*8;
2985

    
2986
    if (s->mb_intra) {
2987
        int q;
2988
        if (!s->h263_aic) {
2989
            if (n < 4)
2990
                q = s->y_dc_scale;
2991
            else
2992
                q = s->c_dc_scale;
2993
            q = q << 3;
2994
        } else{
2995
            /* For AIC we skip quant/dequant of INTRADC */
2996
            q = 1 << 3;
2997
            qadd=0;
2998
        }
2999

    
3000
        /* note: block[0] is assumed to be positive */
3001
        block[0] = (block[0] + (q >> 1)) / q;
3002
        start_i = 1;
3003
        last_non_zero = 0;
3004
        qmat = s->q_intra_matrix[qscale];
3005
        if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3006
            bias= 1<<(QMAT_SHIFT-1);
3007
        length     = s->intra_ac_vlc_length;
3008
        last_length= s->intra_ac_vlc_last_length;
3009
    } else {
3010
        start_i = 0;
3011
        last_non_zero = -1;
3012
        qmat = s->q_inter_matrix[qscale];
3013
        length     = s->inter_ac_vlc_length;
3014
        last_length= s->inter_ac_vlc_last_length;
3015
    }
3016
    last_i= start_i;
3017

    
3018
    threshold1= (1<<QMAT_SHIFT) - bias - 1;
3019
    threshold2= (threshold1<<1);
3020

    
3021
    for(i=63; i>=start_i; i--) {
3022
        const int j = scantable[i];
3023
        int level = block[j] * qmat[j];
3024

    
3025
        if(((unsigned)(level+threshold1))>threshold2){
3026
            last_non_zero = i;
3027
            break;
3028
        }
3029
    }
3030

    
3031
    for(i=start_i; i<=last_non_zero; i++) {
3032
        const int j = scantable[i];
3033
        int level = block[j] * qmat[j];
3034

    
3035
//        if(   bias+level >= (1<<(QMAT_SHIFT - 3))
3036
//           || bias-level >= (1<<(QMAT_SHIFT - 3))){
3037
        if(((unsigned)(level+threshold1))>threshold2){
3038
            if(level>0){
3039
                level= (bias + level)>>QMAT_SHIFT;
3040
                coeff[0][i]= level;
3041
                coeff[1][i]= level-1;
3042
//                coeff[2][k]= level-2;
3043
            }else{
3044
                level= (bias - level)>>QMAT_SHIFT;
3045
                coeff[0][i]= -level;
3046
                coeff[1][i]= -level+1;
3047
//                coeff[2][k]= -level+2;
3048
            }
3049
            coeff_count[i]= FFMIN(level, 2);
3050
            assert(coeff_count[i]);
3051
            max |=level;
3052
        }else{
3053
            coeff[0][i]= (level>>31)|1;
3054
            coeff_count[i]= 1;
3055
        }
3056
    }
3057

    
3058
    *overflow= s->max_qcoeff < max; //overflow might have happened
3059

    
3060
    if(last_non_zero < start_i){
3061
        memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3062
        return last_non_zero;
3063
    }
3064

    
3065
    score_tab[start_i]= 0;
3066
    survivor[0]= start_i;
3067
    survivor_count= 1;
3068

    
3069
    for(i=start_i; i<=last_non_zero; i++){
3070
        int level_index, j;
3071
        const int dct_coeff= FFABS(block[ scantable[i] ]);
3072
        const int zero_distoration= dct_coeff*dct_coeff;
3073
        int best_score=256*256*256*120;
3074
        for(level_index=0; level_index < coeff_count[i]; level_index++){
3075
            int distoration;
3076
            int level= coeff[level_index][i];
3077
            const int alevel= FFABS(level);
3078
            int unquant_coeff;
3079

    
3080
            assert(level);
3081

    
3082
            if(s->out_format == FMT_H263){
3083
                unquant_coeff= alevel*qmul + qadd;
3084
            }else{ //MPEG1
3085
                j= s->dsp.idct_permutation[ scantable[i] ]; //FIXME optimize
3086
                if(s->mb_intra){
3087
                        unquant_coeff = (int)(  alevel  * qscale * s->intra_matrix[j]) >> 3;
3088
                        unquant_coeff =   (unquant_coeff - 1) | 1;
3089
                }else{
3090
                        unquant_coeff = (((  alevel  << 1) + 1) * qscale * ((int) s->inter_matrix[j])) >> 4;
3091
                        unquant_coeff =   (unquant_coeff - 1) | 1;
3092
                }
3093
                unquant_coeff<<= 3;
3094
            }
3095

    
3096
            distoration= (unquant_coeff - dct_coeff) * (unquant_coeff - dct_coeff) - zero_distoration;
3097
            level+=64;
3098
            if((level&(~127)) == 0){
3099
                for(j=survivor_count-1; j>=0; j--){
3100
                    int run= i - survivor[j];
3101
                    int score= distoration + length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3102
                    score += score_tab[i-run];
3103

    
3104
                    if(score < best_score){
3105
                        best_score= score;
3106
                        run_tab[i+1]= run;
3107
                        level_tab[i+1]= level-64;
3108
                    }
3109
                }
3110

    
3111
                if(s->out_format == FMT_H263){
3112
                    for(j=survivor_count-1; j>=0; j--){
3113
                        int run= i - survivor[j];
3114
                        int score= distoration + last_length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3115
                        score += score_tab[i-run];
3116
                        if(score < last_score){
3117
                            last_score= score;
3118
                            last_run= run;
3119
                            last_level= level-64;
3120
                            last_i= i+1;
3121
                        }
3122
                    }
3123
                }
3124
            }else{
3125
                distoration += esc_length*lambda;
3126
                for(j=survivor_count-1; j>=0; j--){
3127
                    int run= i - survivor[j];
3128
                    int score= distoration + score_tab[i-run];
3129

    
3130
                    if(score < best_score){
3131
                        best_score= score;
3132
                        run_tab[i+1]= run;
3133
                        level_tab[i+1]= level-64;
3134
                    }
3135
                }
3136

    
3137
                if(s->out_format == FMT_H263){
3138
                  for(j=survivor_count-1; j>=0; j--){
3139
                        int run= i - survivor[j];
3140
                        int score= distoration + score_tab[i-run];
3141
                        if(score < last_score){
3142
                            last_score= score;
3143
                            last_run= run;
3144
                            last_level= level-64;
3145
                            last_i= i+1;
3146
                        }
3147
                    }
3148
                }
3149
            }
3150
        }
3151

    
3152
        score_tab[i+1]= best_score;
3153

    
3154
        //Note: there is a vlc code in mpeg4 which is 1 bit shorter then another one with a shorter run and the same level
3155
        if(last_non_zero <= 27){
3156
            for(; survivor_count; survivor_count--){
3157
                if(score_tab[ survivor[survivor_count-1] ] <= best_score)
3158
                    break;
3159
            }
3160
        }else{
3161
            for(; survivor_count; survivor_count--){
3162
                if(score_tab[ survivor[survivor_count-1] ] <= best_score + lambda)
3163
                    break;
3164
            }
3165
        }
3166

    
3167
        survivor[ survivor_count++ ]= i+1;
3168
    }
3169

    
3170
    if(s->out_format != FMT_H263){
3171
        last_score= 256*256*256*120;
3172
        for(i= survivor[0]; i<=last_non_zero + 1; i++){
3173
            int score= score_tab[i];
3174
            if(i) score += lambda*2; //FIXME exacter?
3175

    
3176
            if(score < last_score){
3177
                last_score= score;
3178
                last_i= i;
3179
                last_level= level_tab[i];
3180
                last_run= run_tab[i];
3181
            }
3182
        }
3183
    }
3184

    
3185
    s->coded_score[n] = last_score;
3186

    
3187
    dc= FFABS(block[0]);
3188
    last_non_zero= last_i - 1;
3189
    memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3190

    
3191
    if(last_non_zero < start_i)
3192
        return last_non_zero;
3193

    
3194
    if(last_non_zero == 0 && start_i == 0){
3195
        int best_level= 0;
3196
        int best_score= dc * dc;
3197

    
3198
        for(i=0; i<coeff_count[0]; i++){
3199
            int level= coeff[i][0];
3200
            int alevel= FFABS(level);
3201
            int unquant_coeff, score, distortion;
3202

    
3203
            if(s->out_format == FMT_H263){
3204
                    unquant_coeff= (alevel*qmul + qadd)>>3;
3205
            }else{ //MPEG1
3206
                    unquant_coeff = (((  alevel  << 1) + 1) * qscale * ((int) s->inter_matrix[0])) >> 4;
3207
                    unquant_coeff =   (unquant_coeff - 1) | 1;
3208
            }
3209
            unquant_coeff = (unquant_coeff + 4) >> 3;
3210
            unquant_coeff<<= 3 + 3;
3211

    
3212
            distortion= (unquant_coeff - dc) * (unquant_coeff - dc);
3213
            level+=64;
3214
            if((level&(~127)) == 0) score= distortion + last_length[UNI_AC_ENC_INDEX(0, level)]*lambda;
3215
            else                    score= distortion + esc_length*lambda;
3216

    
3217
            if(score < best_score){
3218
                best_score= score;
3219
                best_level= level - 64;
3220
            }
3221
        }
3222
        block[0]= best_level;
3223
        s->coded_score[n] = best_score - dc*dc;
3224
        if(best_level == 0) return -1;
3225
        else                return last_non_zero;
3226
    }
3227

    
3228
    i= last_i;
3229
    assert(last_level);
3230

    
3231
    block[ perm_scantable[last_non_zero] ]= last_level;
3232
    i -= last_run + 1;
3233

    
3234
    for(; i>start_i; i -= run_tab[i] + 1){
3235
        block[ perm_scantable[i-1] ]= level_tab[i];
3236
    }
3237

    
3238
    return last_non_zero;
3239
}
3240

    
3241
//#define REFINE_STATS 1
3242
static int16_t basis[64][64];
3243

    
3244
static void build_basis(uint8_t *perm){
3245
    int i, j, x, y;
3246
    emms_c();
3247
    for(i=0; i<8; i++){
3248
        for(j=0; j<8; j++){
3249
            for(y=0; y<8; y++){
3250
                for(x=0; x<8; x++){
3251
                    double s= 0.25*(1<<BASIS_SHIFT);
3252
                    int index= 8*i + j;
3253
                    int perm_index= perm[index];
3254
                    if(i==0) s*= sqrt(0.5);
3255
                    if(j==0) s*= sqrt(0.5);
3256
                    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)));
3257
                }
3258
            }
3259
        }
3260
    }
3261
}
3262

    
3263
static int dct_quantize_refine(MpegEncContext *s, //FIXME breaks denoise?
3264
                        DCTELEM *block, int16_t *weight, DCTELEM *orig,
3265
                        int n, int qscale){
3266
    int16_t rem[64];
3267
    DECLARE_ALIGNED_16(DCTELEM, d1[64]);
3268
    const int *qmat;
3269
    const uint8_t *scantable= s->intra_scantable.scantable;
3270
    const uint8_t *perm_scantable= s->intra_scantable.permutated;
3271
//    unsigned int threshold1, threshold2;
3272
//    int bias=0;
3273
    int run_tab[65];
3274
    int prev_run=0;
3275
    int prev_level=0;
3276
    int qmul, qadd, start_i, last_non_zero, i, dc;
3277
    uint8_t * length;
3278
    uint8_t * last_length;
3279
    int lambda;
3280
    int rle_index, run, q = 1, sum; //q is only used when s->mb_intra is true
3281
#ifdef REFINE_STATS
3282
static int count=0;
3283
static int after_last=0;
3284
static int to_zero=0;
3285
static int from_zero=0;
3286
static int raise=0;
3287
static int lower=0;
3288
static int messed_sign=0;
3289
#endif
3290

    
3291
    if(basis[0][0] == 0)
3292
        build_basis(s->dsp.idct_permutation);
3293

    
3294
    qmul= qscale*2;
3295
    qadd= (qscale-1)|1;
3296
    if (s->mb_intra) {
3297
        if (!s->h263_aic) {
3298
            if (n < 4)
3299
                q = s->y_dc_scale;
3300
            else
3301
                q = s->c_dc_scale;
3302
        } else{
3303
            /* For AIC we skip quant/dequant of INTRADC */
3304
            q = 1;
3305
            qadd=0;
3306
        }
3307
        q <<= RECON_SHIFT-3;
3308
        /* note: block[0] is assumed to be positive */
3309
        dc= block[0]*q;
3310
//        block[0] = (block[0] + (q >> 1)) / q;
3311
        start_i = 1;
3312
        qmat = s->q_intra_matrix[qscale];
3313
//        if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3314
//            bias= 1<<(QMAT_SHIFT-1);
3315
        length     = s->intra_ac_vlc_length;
3316
        last_length= s->intra_ac_vlc_last_length;
3317
    } else {
3318
        dc= 0;
3319
        start_i = 0;
3320
        qmat = s->q_inter_matrix[qscale];
3321
        length     = s->inter_ac_vlc_length;
3322
        last_length= s->inter_ac_vlc_last_length;
3323
    }
3324
    last_non_zero = s->block_last_index[n];
3325

    
3326
#ifdef REFINE_STATS
3327
{START_TIMER
3328
#endif
3329
    dc += (1<<(RECON_SHIFT-1));
3330
    for(i=0; i<64; i++){
3331
        rem[i]= dc - (orig[i]<<RECON_SHIFT); //FIXME  use orig dirrectly instead of copying to rem[]
3332
    }
3333
#ifdef REFINE_STATS
3334
STOP_TIMER("memset rem[]")}
3335
#endif
3336
    sum=0;
3337
    for(i=0; i<64; i++){
3338
        int one= 36;
3339
        int qns=4;
3340
        int w;
3341

    
3342
        w= FFABS(weight[i]) + qns*one;
3343
        w= 15 + (48*qns*one + w/2)/w; // 16 .. 63
3344

    
3345
        weight[i] = w;
3346
//        w=weight[i] = (63*qns + (w/2)) / w;
3347

    
3348
        assert(w>0);
3349
        assert(w<(1<<6));
3350
        sum += w*w;
3351
    }
3352
    lambda= sum*(uint64_t)s->lambda2 >> (FF_LAMBDA_SHIFT - 6 + 6 + 6 + 6);
3353
#ifdef REFINE_STATS
3354
{START_TIMER
3355
#endif
3356
    run=0;
3357
    rle_index=0;
3358
    for(i=start_i; i<=last_non_zero; i++){
3359
        int j= perm_scantable[i];
3360
        const int level= block[j];
3361
        int coeff;
3362

    
3363
        if(level){
3364
            if(level<0) coeff= qmul*level - qadd;
3365
            else        coeff= qmul*level + qadd;
3366
            run_tab[rle_index++]=run;
3367
            run=0;
3368

    
3369
            s->dsp.add_8x8basis(rem, basis[j], coeff);
3370
        }else{
3371
            run++;
3372
        }
3373
    }
3374
#ifdef REFINE_STATS
3375
if(last_non_zero>0){
3376
STOP_TIMER("init rem[]")
3377
}
3378
}
3379

    
3380
{START_TIMER
3381
#endif
3382
    for(;;){
3383
        int best_score=s->dsp.try_8x8basis(rem, weight, basis[0], 0);
3384
        int best_coeff=0;
3385
        int best_change=0;
3386
        int run2, best_unquant_change=0, analyze_gradient;
3387
#ifdef REFINE_STATS
3388
{START_TIMER
3389
#endif
3390
        analyze_gradient = last_non_zero > 2 || s->avctx->quantizer_noise_shaping >= 3;
3391

    
3392
        if(analyze_gradient){
3393
#ifdef REFINE_STATS
3394
{START_TIMER
3395
#endif
3396
            for(i=0; i<64; i++){
3397
                int w= weight[i];
3398

    
3399
                d1[i] = (rem[i]*w*w + (1<<(RECON_SHIFT+12-1)))>>(RECON_SHIFT+12);
3400
            }
3401
#ifdef REFINE_STATS
3402
STOP_TIMER("rem*w*w")}
3403
{START_TIMER
3404
#endif
3405
            s->dsp.fdct(d1);
3406
#ifdef REFINE_STATS
3407
STOP_TIMER("dct")}
3408
#endif
3409
        }
3410

    
3411
        if(start_i){
3412
            const int level= block[0];
3413
            int change, old_coeff;
3414

    
3415
            assert(s->mb_intra);
3416

    
3417
            old_coeff= q*level;
3418

    
3419
            for(change=-1; change<=1; change+=2){
3420
                int new_level= level + change;
3421
                int score, new_coeff;
3422

    
3423
                new_coeff= q*new_level;
3424
                if(new_coeff >= 2048 || new_coeff < 0)
3425
                    continue;
3426

    
3427
                score= s->dsp.try_8x8basis(rem, weight, basis[0], new_coeff - old_coeff);
3428
                if(score<best_score){
3429
                    best_score= score;
3430
                    best_coeff= 0;
3431
                    best_change= change;
3432
                    best_unquant_change= new_coeff - old_coeff;
3433
                }
3434
            }
3435
        }
3436

    
3437
        run=0;
3438
        rle_index=0;
3439
        run2= run_tab[rle_index++];
3440
        prev_level=0;
3441
        prev_run=0;
3442

    
3443
        for(i=start_i; i<64; i++){
3444
            int j= perm_scantable[i];
3445
            const int level= block[j];
3446
            int change, old_coeff;
3447

    
3448
            if(s->avctx->quantizer_noise_shaping < 3 && i > last_non_zero + 1)
3449
                break;
3450

    
3451
            if(level){
3452
                if(level<0) old_coeff= qmul*level - qadd;
3453
                else        old_coeff= qmul*level + qadd;
3454
                run2= run_tab[rle_index++]; //FIXME ! maybe after last
3455
            }else{
3456
                old_coeff=0;
3457
                run2--;
3458
                assert(run2>=0 || i >= last_non_zero );
3459
            }
3460

    
3461
            for(change=-1; change<=1; change+=2){
3462
                int new_level= level + change;
3463
                int score, new_coeff, unquant_change;
3464

    
3465
                score=0;
3466
                if(s->avctx->quantizer_noise_shaping < 2 && FFABS(new_level) > FFABS(level))
3467
                   continue;
3468

    
3469
                if(new_level){
3470
                    if(new_level<0) new_coeff= qmul*new_level - qadd;
3471
                    else            new_coeff= qmul*new_level + qadd;
3472
                    if(new_coeff >= 2048 || new_coeff <= -2048)
3473
                        continue;
3474
                    //FIXME check for overflow
3475

    
3476
                    if(level){
3477
                        if(level < 63 && level > -63){
3478
                            if(i < last_non_zero)
3479
                                score +=   length[UNI_AC_ENC_INDEX(run, new_level+64)]
3480
                                         - length[UNI_AC_ENC_INDEX(run, level+64)];
3481
                            else
3482
                                score +=   last_length[UNI_AC_ENC_INDEX(run, new_level+64)]
3483
                                         - last_length[UNI_AC_ENC_INDEX(run, level+64)];
3484
                        }
3485
                    }else{
3486
                        assert(FFABS(new_level)==1);
3487

    
3488
                        if(analyze_gradient){
3489
                            int g= d1[ scantable[i] ];
3490
                            if(g && (g^new_level) >= 0)
3491
                                continue;
3492
                        }
3493

    
3494
                        if(i < last_non_zero){
3495
                            int next_i= i + run2 + 1;
3496
                            int next_level= block[ perm_scantable[next_i] ] + 64;
3497

    
3498
                            if(next_level&(~127))
3499
                                next_level= 0;
3500

    
3501
                            if(next_i < last_non_zero)
3502
                                score +=   length[UNI_AC_ENC_INDEX(run, 65)]
3503
                                         + length[UNI_AC_ENC_INDEX(run2, next_level)]
3504
                                         - length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3505
                            else
3506
                                score +=  length[UNI_AC_ENC_INDEX(run, 65)]
3507
                                        + last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3508
                                        - last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3509
                        }else{
3510
                            score += last_length[UNI_AC_ENC_INDEX(run, 65)];
3511
                            if(prev_level){
3512
                                score +=  length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3513
                                        - last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3514
                            }
3515
                        }
3516
                    }
3517
                }else{
3518
                    new_coeff=0;
3519
                    assert(FFABS(level)==1);
3520

    
3521
                    if(i < last_non_zero){
3522
                        int next_i= i + run2 + 1;
3523
                        int next_level= block[ perm_scantable[next_i] ] + 64;
3524

    
3525
                        if(next_level&(~127))
3526
                            next_level= 0;
3527

    
3528
                        if(next_i < last_non_zero)
3529
                            score +=   length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3530
                                     - length[UNI_AC_ENC_INDEX(run2, next_level)]
3531
                                     - length[UNI_AC_ENC_INDEX(run, 65)];
3532
                        else
3533
                            score +=   last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3534
                                     - last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3535
                                     - length[UNI_AC_ENC_INDEX(run, 65)];
3536
                    }else{
3537
                        score += -last_length[UNI_AC_ENC_INDEX(run, 65)];
3538
                        if(prev_level){
3539
                            score +=  last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3540
                                    - length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3541
                        }
3542
                    }
3543
                }
3544

    
3545
                score *= lambda;
3546

    
3547
                unquant_change= new_coeff - old_coeff;
3548
                assert((score < 100*lambda && score > -100*lambda) || lambda==0);
3549

    
3550
                score+= s->dsp.try_8x8basis(rem, weight, basis[j], unquant_change);
3551
                if(score<best_score){
3552
                    best_score= score;
3553
                    best_coeff= i;
3554
                    best_change= change;
3555
                    best_unquant_change= unquant_change;
3556
                }
3557
            }
3558
            if(level){
3559
                prev_level= level + 64;
3560
                if(prev_level&(~127))
3561
                    prev_level= 0;
3562
                prev_run= run;
3563
                run=0;
3564
            }else{
3565
                run++;
3566
            }
3567
        }
3568
#ifdef REFINE_STATS
3569
STOP_TIMER("iterative step")}
3570
#endif
3571

    
3572
        if(best_change){
3573
            int j= perm_scantable[ best_coeff ];
3574

    
3575
            block[j] += best_change;
3576

    
3577
            if(best_coeff > last_non_zero){
3578
                last_non_zero= best_coeff;
3579
                assert(block[j]);
3580
#ifdef REFINE_STATS
3581
after_last++;
3582
#endif
3583
            }else{
3584
#ifdef REFINE_STATS
3585
if(block[j]){
3586
    if(block[j] - best_change){
3587
        if(FFABS(block[j]) > FFABS(block[j] - best_change)){
3588
            raise++;
3589
        }else{
3590
            lower++;
3591
        }
3592
    }else{
3593
        from_zero++;
3594
    }
3595
}else{
3596
    to_zero++;
3597
}
3598
#endif
3599
                for(; last_non_zero>=start_i; last_non_zero--){
3600
                    if(block[perm_scantable[last_non_zero]])
3601
                        break;
3602
                }
3603
            }
3604
#ifdef REFINE_STATS
3605
count++;
3606
if(256*256*256*64 % count == 0){
3607
    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);
3608
}
3609
#endif
3610
            run=0;
3611
            rle_index=0;
3612
            for(i=start_i; i<=last_non_zero; i++){
3613
                int j= perm_scantable[i];
3614
                const int level= block[j];
3615

    
3616
                 if(level){
3617
                     run_tab[rle_index++]=run;
3618
                     run=0;
3619
                 }else{
3620
                     run++;
3621
                 }
3622
            }
3623

    
3624
            s->dsp.add_8x8basis(rem, basis[j], best_unquant_change);
3625
        }else{
3626
            break;
3627
        }
3628
    }
3629
#ifdef REFINE_STATS
3630
if(last_non_zero>0){
3631
STOP_TIMER("iterative search")
3632
}
3633
}
3634
#endif
3635

    
3636
    return last_non_zero;
3637
}
3638

    
3639
int dct_quantize_c(MpegEncContext *s,
3640
                        DCTELEM *block, int n,
3641
                        int qscale, int *overflow)
3642
{
3643
    int i, j, level, last_non_zero, q, start_i;
3644
    const int *qmat;
3645
    const uint8_t *scantable= s->intra_scantable.scantable;
3646
    int bias;
3647
    int max=0;
3648
    unsigned int threshold1, threshold2;
3649

    
3650
    s->dsp.fdct (block);
3651

    
3652
    if(s->dct_error_sum)
3653
        s->denoise_dct(s, block);
3654

    
3655
    if (s->mb_intra) {
3656
        if (!s->h263_aic) {
3657
            if (n < 4)
3658
                q = s->y_dc_scale;
3659
            else
3660
                q = s->c_dc_scale;
3661
            q = q << 3;
3662
        } else
3663
            /* For AIC we skip quant/dequant of INTRADC */
3664
            q = 1 << 3;
3665

    
3666
        /* note: block[0] is assumed to be positive */
3667
        block[0] = (block[0] + (q >> 1)) / q;
3668
        start_i = 1;
3669
        last_non_zero = 0;
3670
        qmat = s->q_intra_matrix[qscale];
3671
        bias= s->intra_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3672
    } else {
3673
        start_i = 0;
3674
        last_non_zero = -1;
3675
        qmat = s->q_inter_matrix[qscale];
3676
        bias= s->inter_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3677
    }
3678
    threshold1= (1<<QMAT_SHIFT) - bias - 1;
3679
    threshold2= (threshold1<<1);
3680
    for(i=63;i>=start_i;i--) {
3681
        j = scantable[i];
3682
        level = block[j] * qmat[j];
3683

    
3684
        if(((unsigned)(level+threshold1))>threshold2){
3685
            last_non_zero = i;
3686
            break;
3687
        }else{
3688
            block[j]=0;
3689
        }
3690
    }
3691
    for(i=start_i; i<=last_non_zero; i++) {
3692
        j = scantable[i];
3693
        level = block[j] * qmat[j];
3694

    
3695
//        if(   bias+level >= (1<<QMAT_SHIFT)
3696
//           || bias-level >= (1<<QMAT_SHIFT)){
3697
        if(((unsigned)(level+threshold1))>threshold2){
3698
            if(level>0){
3699
                level= (bias + level)>>QMAT_SHIFT;
3700
                block[j]= level;
3701
            }else{
3702
                level= (bias - level)>>QMAT_SHIFT;
3703
                block[j]= -level;
3704
            }
3705
            max |=level;
3706
        }else{
3707
            block[j]=0;
3708
        }
3709
    }
3710
    *overflow= s->max_qcoeff < max; //overflow might have happened
3711

    
3712
    /* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */
3713
    if (s->dsp.idct_permutation_type != FF_NO_IDCT_PERM)
3714
        ff_block_permute(block, s->dsp.idct_permutation, scantable, last_non_zero);
3715

    
3716
    return last_non_zero;
3717
}
3718

    
3719
AVCodec h263_encoder = {
3720
    "h263",
3721
    CODEC_TYPE_VIDEO,
3722
    CODEC_ID_H263,
3723
    sizeof(MpegEncContext),
3724
    MPV_encode_init,
3725
    MPV_encode_picture,
3726
    MPV_encode_end,
3727
    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3728
};
3729

    
3730
AVCodec h263p_encoder = {
3731
    "h263p",
3732
    CODEC_TYPE_VIDEO,
3733
    CODEC_ID_H263P,
3734
    sizeof(MpegEncContext),
3735
    MPV_encode_init,
3736
    MPV_encode_picture,
3737
    MPV_encode_end,
3738
    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3739
};
3740

    
3741
AVCodec flv_encoder = {
3742
    "flv",
3743
    CODEC_TYPE_VIDEO,
3744
    CODEC_ID_FLV1,
3745
    sizeof(MpegEncContext),
3746
    MPV_encode_init,
3747
    MPV_encode_picture,
3748
    MPV_encode_end,
3749
    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3750
};
3751

    
3752
AVCodec rv10_encoder = {
3753
    "rv10",
3754
    CODEC_TYPE_VIDEO,
3755
    CODEC_ID_RV10,
3756
    sizeof(MpegEncContext),
3757
    MPV_encode_init,
3758
    MPV_encode_picture,
3759
    MPV_encode_end,
3760
    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3761
};
3762

    
3763
AVCodec rv20_encoder = {
3764
    "rv20",
3765
    CODEC_TYPE_VIDEO,
3766
    CODEC_ID_RV20,
3767
    sizeof(MpegEncContext),
3768
    MPV_encode_init,
3769
    MPV_encode_picture,
3770
    MPV_encode_end,
3771
    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3772
};
3773

    
3774
AVCodec mpeg4_encoder = {
3775
    "mpeg4",
3776
    CODEC_TYPE_VIDEO,
3777
    CODEC_ID_MPEG4,
3778
    sizeof(MpegEncContext),
3779
    MPV_encode_init,
3780
    MPV_encode_picture,
3781
    MPV_encode_end,
3782
    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3783
    .capabilities= CODEC_CAP_DELAY,
3784
};
3785

    
3786
AVCodec msmpeg4v1_encoder = {
3787
    "msmpeg4v1",
3788
    CODEC_TYPE_VIDEO,
3789
    CODEC_ID_MSMPEG4V1,
3790
    sizeof(MpegEncContext),
3791
    MPV_encode_init,
3792
    MPV_encode_picture,
3793
    MPV_encode_end,
3794
    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3795
};
3796

    
3797
AVCodec msmpeg4v2_encoder = {
3798
    "msmpeg4v2",
3799
    CODEC_TYPE_VIDEO,
3800
    CODEC_ID_MSMPEG4V2,
3801
    sizeof(MpegEncContext),
3802
    MPV_encode_init,
3803
    MPV_encode_picture,
3804
    MPV_encode_end,
3805
    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3806
};
3807

    
3808
AVCodec msmpeg4v3_encoder = {
3809
    "msmpeg4",
3810
    CODEC_TYPE_VIDEO,
3811
    CODEC_ID_MSMPEG4V3,
3812
    sizeof(MpegEncContext),
3813
    MPV_encode_init,
3814
    MPV_encode_picture,
3815
    MPV_encode_end,
3816
    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3817
};
3818

    
3819
AVCodec wmv1_encoder = {
3820
    "wmv1",
3821
    CODEC_TYPE_VIDEO,
3822
    CODEC_ID_WMV1,
3823
    sizeof(MpegEncContext),
3824
    MPV_encode_init,
3825
    MPV_encode_picture,
3826
    MPV_encode_end,
3827
    .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3828
};