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ffmpeg / libavcodec / mpegvideo_enc.c @ 4052cbf1

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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
 *
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 * FFmpeg is distributed in the hope that it will be useful,
16
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
18
 * Lesser General Public License for more details.
19
 *
20
 * You should have received a copy of the GNU Lesser General Public
21
 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23
 */
24

    
25
/**
26
 * @file libavcodec/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 "faandct.h"
37
#include "aandcttab.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 uint8_t default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
53
static uint8_t default_fcode_tab[MAX_MV*2+1];
54

    
55
void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
56
                           const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra)
57
{
58
    int qscale;
59
    int shift=0;
60

    
61
    for(qscale=qmin; qscale<=qmax; qscale++){
62
        int i;
63
        if (dsp->fdct == ff_jpeg_fdct_islow
64
#ifdef FAAN_POSTSCALE
65
            || dsp->fdct == ff_faandct
66
#endif
67
            ) {
68
            for(i=0;i<64;i++) {
69
                const int j= dsp->idct_permutation[i];
70
                /* 16 <= qscale * quant_matrix[i] <= 7905 */
71
                /* 19952             <= ff_aanscales[i] * qscale * quant_matrix[i]               <= 249205026 */
72
                /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1 << 36) / 249205026 */
73
                /* 3444240           >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
74

    
75
                qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) /
76
                                (qscale * quant_matrix[j]));
77
            }
78
        } else if (dsp->fdct == fdct_ifast
79
#ifndef FAAN_POSTSCALE
80
                   || dsp->fdct == ff_faandct
81
#endif
82
                   ) {
83
            for(i=0;i<64;i++) {
84
                const int j= dsp->idct_permutation[i];
85
                /* 16 <= qscale * quant_matrix[i] <= 7905 */
86
                /* 19952             <= ff_aanscales[i] * qscale * quant_matrix[i]               <= 249205026 */
87
                /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
88
                /* 3444240           >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
89

    
90
                qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) /
91
                                (ff_aanscales[i] * qscale * quant_matrix[j]));
92
            }
93
        } else {
94
            for(i=0;i<64;i++) {
95
                const int j= dsp->idct_permutation[i];
96
                /* We can safely suppose that 16 <= quant_matrix[i] <= 255
97
                   So 16           <= qscale * quant_matrix[i]             <= 7905
98
                   so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
99
                   so 32768        >= (1<<19) / (qscale * quant_matrix[i]) >= 67
100
                */
101
                qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / (qscale * quant_matrix[j]));
102
//                qmat  [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
103
                qmat16[qscale][0][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[j]);
104

    
105
                if(qmat16[qscale][0][i]==0 || qmat16[qscale][0][i]==128*256) qmat16[qscale][0][i]=128*256-1;
106
                qmat16[qscale][1][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][0][i]);
107
            }
108
        }
109

    
110
        for(i=intra; i<64; i++){
111
            int64_t max= 8191;
112
            if (dsp->fdct == fdct_ifast
113
#ifndef FAAN_POSTSCALE
114
                   || dsp->fdct == ff_faandct
115
#endif
116
                   ) {
117
                max = (8191LL*ff_aanscales[i]) >> 14;
118
            }
119
            while(((max * qmat[qscale][i]) >> shift) > INT_MAX){
120
                shift++;
121
            }
122
        }
123
    }
124
    if(shift){
125
        av_log(NULL, AV_LOG_INFO, "Warning, QMAT_SHIFT is larger than %d, overflows possible\n", QMAT_SHIFT - shift);
126
    }
127
}
128

    
129
static inline void update_qscale(MpegEncContext *s){
130
    s->qscale= (s->lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
131
    s->qscale= av_clip(s->qscale, s->avctx->qmin, s->avctx->qmax);
132

    
133
    s->lambda2= (s->lambda*s->lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
134
}
135

    
136
void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix){
137
    int i;
138

    
139
    if(matrix){
140
        put_bits(pb, 1, 1);
141
        for(i=0;i<64;i++) {
142
            put_bits(pb, 8, matrix[ ff_zigzag_direct[i] ]);
143
        }
144
    }else
145
        put_bits(pb, 1, 0);
146
}
147

    
148
/**
149
 * init s->current_picture.qscale_table from s->lambda_table
150
 */
151
void ff_init_qscale_tab(MpegEncContext *s){
152
    int8_t * const qscale_table= s->current_picture.qscale_table;
153
    int i;
154

    
155
    for(i=0; i<s->mb_num; i++){
156
        unsigned int lam= s->lambda_table[ s->mb_index2xy[i] ];
157
        int qp= (lam*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
158
        qscale_table[ s->mb_index2xy[i] ]= av_clip(qp, s->avctx->qmin, s->avctx->qmax);
159
    }
160
}
161

    
162
static void copy_picture_attributes(MpegEncContext *s, AVFrame *dst, AVFrame *src){
163
    int i;
164

    
165
    dst->pict_type              = src->pict_type;
166
    dst->quality                = src->quality;
167
    dst->coded_picture_number   = src->coded_picture_number;
168
    dst->display_picture_number = src->display_picture_number;
169
//    dst->reference              = src->reference;
170
    dst->pts                    = src->pts;
171
    dst->interlaced_frame       = src->interlaced_frame;
172
    dst->top_field_first        = src->top_field_first;
173

    
174
    if(s->avctx->me_threshold){
175
        if(!src->motion_val[0])
176
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_val not set!\n");
177
        if(!src->mb_type)
178
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.mb_type not set!\n");
179
        if(!src->ref_index[0])
180
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.ref_index not set!\n");
181
        if(src->motion_subsample_log2 != dst->motion_subsample_log2)
182
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_subsample_log2 doesn't match! (%d!=%d)\n",
183
            src->motion_subsample_log2, dst->motion_subsample_log2);
184

    
185
        memcpy(dst->mb_type, src->mb_type, s->mb_stride * s->mb_height * sizeof(dst->mb_type[0]));
186

    
187
        for(i=0; i<2; i++){
188
            int stride= ((16*s->mb_width )>>src->motion_subsample_log2) + 1;
189
            int height= ((16*s->mb_height)>>src->motion_subsample_log2);
190

    
191
            if(src->motion_val[i] && src->motion_val[i] != dst->motion_val[i]){
192
                memcpy(dst->motion_val[i], src->motion_val[i], 2*stride*height*sizeof(int16_t));
193
            }
194
            if(src->ref_index[i] && src->ref_index[i] != dst->ref_index[i]){
195
                memcpy(dst->ref_index[i], src->ref_index[i], s->b8_stride*2*s->mb_height*sizeof(int8_t));
196
            }
197
        }
198
    }
199
}
200

    
201
static void update_duplicate_context_after_me(MpegEncContext *dst, MpegEncContext *src){
202
#define COPY(a) dst->a= src->a
203
    COPY(pict_type);
204
    COPY(current_picture);
205
    COPY(f_code);
206
    COPY(b_code);
207
    COPY(qscale);
208
    COPY(lambda);
209
    COPY(lambda2);
210
    COPY(picture_in_gop_number);
211
    COPY(gop_picture_number);
212
    COPY(frame_pred_frame_dct); //FIXME don't set in encode_header
213
    COPY(progressive_frame); //FIXME don't set in encode_header
214
    COPY(partitioned_frame); //FIXME don't set in encode_header
215
#undef COPY
216
}
217

    
218
/**
219
 * sets the given MpegEncContext to defaults for encoding.
220
 * the changed fields will not depend upon the prior state of the MpegEncContext.
221
 */
222
static void MPV_encode_defaults(MpegEncContext *s){
223
    int i;
224
    MPV_common_defaults(s);
225

    
226
    for(i=-16; i<16; i++){
227
        default_fcode_tab[i + MAX_MV]= 1;
228
    }
229
    s->me.mv_penalty= default_mv_penalty;
230
    s->fcode_tab= default_fcode_tab;
231
}
232

    
233
/* init video encoder */
234
av_cold int MPV_encode_init(AVCodecContext *avctx)
235
{
236
    MpegEncContext *s = avctx->priv_data;
237
    int i;
238
    int chroma_h_shift, chroma_v_shift;
239

    
240
    MPV_encode_defaults(s);
241

    
242
    switch (avctx->codec_id) {
243
    case CODEC_ID_MPEG2VIDEO:
244
        if(avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P){
245
            av_log(avctx, AV_LOG_ERROR, "only YUV420 and YUV422 are supported\n");
246
            return -1;
247
        }
248
        break;
249
    case CODEC_ID_LJPEG:
250
    case CODEC_ID_MJPEG:
251
        if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P && avctx->pix_fmt != PIX_FMT_RGB32 &&
252
           ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P) || avctx->strict_std_compliance>FF_COMPLIANCE_INOFFICIAL)){
253
            av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n");
254
            return -1;
255
        }
256
        break;
257
    default:
258
        if(avctx->pix_fmt != PIX_FMT_YUV420P){
259
            av_log(avctx, AV_LOG_ERROR, "only YUV420 is supported\n");
260
            return -1;
261
        }
262
    }
263

    
264
    switch (avctx->pix_fmt) {
265
    case PIX_FMT_YUVJ422P:
266
    case PIX_FMT_YUV422P:
267
        s->chroma_format = CHROMA_422;
268
        break;
269
    case PIX_FMT_YUVJ420P:
270
    case PIX_FMT_YUV420P:
271
    default:
272
        s->chroma_format = CHROMA_420;
273
        break;
274
    }
275

    
276
    s->bit_rate = avctx->bit_rate;
277
    s->width = avctx->width;
278
    s->height = avctx->height;
279
    if(avctx->gop_size > 600 && avctx->strict_std_compliance>FF_COMPLIANCE_EXPERIMENTAL){
280
        av_log(avctx, AV_LOG_ERROR, "Warning keyframe interval too large! reducing it ...\n");
281
        avctx->gop_size=600;
282
    }
283
    s->gop_size = avctx->gop_size;
284
    s->avctx = avctx;
285
    s->flags= avctx->flags;
286
    s->flags2= avctx->flags2;
287
    s->max_b_frames= avctx->max_b_frames;
288
    s->codec_id= avctx->codec->id;
289
    s->luma_elim_threshold  = avctx->luma_elim_threshold;
290
    s->chroma_elim_threshold= avctx->chroma_elim_threshold;
291
    s->strict_std_compliance= avctx->strict_std_compliance;
292
    s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
293
    s->quarter_sample= (avctx->flags & CODEC_FLAG_QPEL)!=0;
294
    s->mpeg_quant= avctx->mpeg_quant;
295
    s->rtp_mode= !!avctx->rtp_payload_size;
296
    s->intra_dc_precision= avctx->intra_dc_precision;
297
    s->user_specified_pts = AV_NOPTS_VALUE;
298

    
299
    if (s->gop_size <= 1) {
300
        s->intra_only = 1;
301
        s->gop_size = 12;
302
    } else {
303
        s->intra_only = 0;
304
    }
305

    
306
    s->me_method = avctx->me_method;
307

    
308
    /* Fixed QSCALE */
309
    s->fixed_qscale = !!(avctx->flags & CODEC_FLAG_QSCALE);
310

    
311
    s->adaptive_quant= (   s->avctx->lumi_masking
312
                        || s->avctx->dark_masking
313
                        || s->avctx->temporal_cplx_masking
314
                        || s->avctx->spatial_cplx_masking
315
                        || s->avctx->p_masking
316
                        || s->avctx->border_masking
317
                        || (s->flags&CODEC_FLAG_QP_RD))
318
                       && !s->fixed_qscale;
319

    
320
    s->obmc= !!(s->flags & CODEC_FLAG_OBMC);
321
    s->loop_filter= !!(s->flags & CODEC_FLAG_LOOP_FILTER);
322
    s->alternate_scan= !!(s->flags & CODEC_FLAG_ALT_SCAN);
323
    s->intra_vlc_format= !!(s->flags2 & CODEC_FLAG2_INTRA_VLC);
324
    s->q_scale_type= !!(s->flags2 & CODEC_FLAG2_NON_LINEAR_QUANT);
325

    
326
    if(avctx->rc_max_rate && !avctx->rc_buffer_size){
327
        av_log(avctx, AV_LOG_ERROR, "a vbv buffer size is needed, for encoding with a maximum bitrate\n");
328
        return -1;
329
    }
330

    
331
    if(avctx->rc_min_rate && avctx->rc_max_rate != avctx->rc_min_rate){
332
        av_log(avctx, AV_LOG_INFO, "Warning min_rate > 0 but min_rate != max_rate isn't recommended!\n");
333
    }
334

    
335
    if(avctx->rc_min_rate && avctx->rc_min_rate > avctx->bit_rate){
336
        av_log(avctx, AV_LOG_ERROR, "bitrate below min bitrate\n");
337
        return -1;
338
    }
339

    
340
    if(avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate){
341
        av_log(avctx, AV_LOG_INFO, "bitrate above max bitrate\n");
342
        return -1;
343
    }
344

    
345
    if(avctx->rc_max_rate && avctx->rc_max_rate == avctx->bit_rate && avctx->rc_max_rate != avctx->rc_min_rate){
346
        av_log(avctx, AV_LOG_INFO, "impossible bitrate constraints, this will fail\n");
347
    }
348

    
349
    if(avctx->rc_buffer_size && avctx->bit_rate*av_q2d(avctx->time_base) > avctx->rc_buffer_size){
350
        av_log(avctx, AV_LOG_ERROR, "VBV buffer too small for bitrate\n");
351
        return -1;
352
    }
353

    
354
    if(avctx->bit_rate*av_q2d(avctx->time_base) > avctx->bit_rate_tolerance){
355
        av_log(avctx, AV_LOG_ERROR, "bitrate tolerance too small for bitrate\n");
356
        return -1;
357
    }
358

    
359
    if(   s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate
360
       && (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO)
361
       && 90000LL * (avctx->rc_buffer_size-1) > s->avctx->rc_max_rate*0xFFFFLL){
362

    
363
        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");
364
    }
365

    
366
    if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4
367
       && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P && s->codec_id != CODEC_ID_FLV1){
368
        av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n");
369
        return -1;
370
    }
371

    
372
    if(s->obmc && s->avctx->mb_decision != FF_MB_DECISION_SIMPLE){
373
        av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with simple mb decision\n");
374
        return -1;
375
    }
376

    
377
    if(s->obmc && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P){
378
        av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with H263(+)\n");
379
        return -1;
380
    }
381

    
382
    if(s->quarter_sample && s->codec_id != CODEC_ID_MPEG4){
383
        av_log(avctx, AV_LOG_ERROR, "qpel not supported by codec\n");
384
        return -1;
385
    }
386

    
387
    if(s->data_partitioning && s->codec_id != CODEC_ID_MPEG4){
388
        av_log(avctx, AV_LOG_ERROR, "data partitioning not supported by codec\n");
389
        return -1;
390
    }
391

    
392
    if(s->max_b_frames && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO){
393
        av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n");
394
        return -1;
395
    }
396

    
397
    if ((s->codec_id == CODEC_ID_MPEG4 || s->codec_id == CODEC_ID_H263 ||
398
         s->codec_id == CODEC_ID_H263P) &&
399
        (avctx->sample_aspect_ratio.num > 255 || avctx->sample_aspect_ratio.den > 255)) {
400
        av_log(avctx, AV_LOG_ERROR, "Invalid pixel aspect ratio %i/%i, limit is 255/255\n",
401
               avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den);
402
        return -1;
403
    }
404

    
405
    if((s->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN))
406
       && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG2VIDEO){
407
        av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n");
408
        return -1;
409
    }
410

    
411
    if(s->mpeg_quant && s->codec_id != CODEC_ID_MPEG4){ //FIXME mpeg2 uses that too
412
        av_log(avctx, AV_LOG_ERROR, "mpeg2 style quantization not supported by codec\n");
413
        return -1;
414
    }
415

    
416
    if((s->flags & CODEC_FLAG_CBP_RD) && !avctx->trellis){
417
        av_log(avctx, AV_LOG_ERROR, "CBP RD needs trellis quant\n");
418
        return -1;
419
    }
420

    
421
    if((s->flags & CODEC_FLAG_QP_RD) && s->avctx->mb_decision != FF_MB_DECISION_RD){
422
        av_log(avctx, AV_LOG_ERROR, "QP RD needs mbd=2\n");
423
        return -1;
424
    }
425

    
426
    if(s->avctx->scenechange_threshold < 1000000000 && (s->flags & CODEC_FLAG_CLOSED_GOP)){
427
        av_log(avctx, AV_LOG_ERROR, "closed gop with scene change detection are not supported yet, set threshold to 1000000000\n");
428
        return -1;
429
    }
430

    
431
    if((s->flags2 & CODEC_FLAG2_INTRA_VLC) && s->codec_id != CODEC_ID_MPEG2VIDEO){
432
        av_log(avctx, AV_LOG_ERROR, "intra vlc table not supported by codec\n");
433
        return -1;
434
    }
435

    
436
    if(s->flags & CODEC_FLAG_LOW_DELAY){
437
        if (s->codec_id != CODEC_ID_MPEG2VIDEO){
438
            av_log(avctx, AV_LOG_ERROR, "low delay forcing is only available for mpeg2\n");
439
            return -1;
440
        }
441
        if (s->max_b_frames != 0){
442
            av_log(avctx, AV_LOG_ERROR, "b frames cannot be used with low delay\n");
443
            return -1;
444
        }
445
    }
446

    
447
    if(s->q_scale_type == 1){
448
        if(s->codec_id != CODEC_ID_MPEG2VIDEO){
449
            av_log(avctx, AV_LOG_ERROR, "non linear quant is only available for mpeg2\n");
450
            return -1;
451
        }
452
        if(avctx->qmax > 12){
453
            av_log(avctx, AV_LOG_ERROR, "non linear quant only supports qmax <= 12 currently\n");
454
            return -1;
455
        }
456
    }
457

    
458
    if(s->avctx->thread_count > 1 && s->codec_id != CODEC_ID_MPEG4
459
       && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO
460
       && (s->codec_id != CODEC_ID_H263P || !(s->flags & CODEC_FLAG_H263P_SLICE_STRUCT))){
461
        av_log(avctx, AV_LOG_ERROR, "multi threaded encoding not supported by codec\n");
462
        return -1;
463
    }
464

    
465
    if(s->avctx->thread_count < 1){
466
        av_log(avctx, AV_LOG_ERROR, "automatic thread number detection not supported by codec, patch welcome\n");
467
        return -1;
468
    }
469

    
470
    if(s->avctx->thread_count > 1)
471
        s->rtp_mode= 1;
472

    
473
    if(!avctx->time_base.den || !avctx->time_base.num){
474
        av_log(avctx, AV_LOG_ERROR, "framerate not set\n");
475
        return -1;
476
    }
477

    
478
    i= (INT_MAX/2+128)>>8;
479
    if(avctx->me_threshold >= i){
480
        av_log(avctx, AV_LOG_ERROR, "me_threshold too large, max is %d\n", i - 1);
481
        return -1;
482
    }
483
    if(avctx->mb_threshold >= i){
484
        av_log(avctx, AV_LOG_ERROR, "mb_threshold too large, max is %d\n", i - 1);
485
        return -1;
486
    }
487

    
488
    if(avctx->b_frame_strategy && (avctx->flags&CODEC_FLAG_PASS2)){
489
        av_log(avctx, AV_LOG_INFO, "notice: b_frame_strategy only affects the first pass\n");
490
        avctx->b_frame_strategy = 0;
491
    }
492

    
493
    i= av_gcd(avctx->time_base.den, avctx->time_base.num);
494
    if(i > 1){
495
        av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n");
496
        avctx->time_base.den /= i;
497
        avctx->time_base.num /= i;
498
//        return -1;
499
    }
500

    
501
    if(s->codec_id==CODEC_ID_MJPEG){
502
        s->intra_quant_bias= 1<<(QUANT_BIAS_SHIFT-1); //(a + x/2)/x
503
        s->inter_quant_bias= 0;
504
    }else if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO){
505
        s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x
506
        s->inter_quant_bias= 0;
507
    }else{
508
        s->intra_quant_bias=0;
509
        s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x
510
    }
511

    
512
    if(avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
513
        s->intra_quant_bias= avctx->intra_quant_bias;
514
    if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)
515
        s->inter_quant_bias= avctx->inter_quant_bias;
516

    
517
    avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift);
518

    
519
    if(avctx->codec_id == CODEC_ID_MPEG4 && s->avctx->time_base.den > (1<<16)-1){
520
        av_log(avctx, AV_LOG_ERROR, "timebase not supported by mpeg 4 standard\n");
521
        return -1;
522
    }
523
    s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1;
524

    
525
    switch(avctx->codec->id) {
526
    case CODEC_ID_MPEG1VIDEO:
527
        s->out_format = FMT_MPEG1;
528
        s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
529
        avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
530
        break;
531
    case CODEC_ID_MPEG2VIDEO:
532
        s->out_format = FMT_MPEG1;
533
        s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
534
        avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
535
        s->rtp_mode= 1;
536
        break;
537
    case CODEC_ID_LJPEG:
538
    case CODEC_ID_MJPEG:
539
        s->out_format = FMT_MJPEG;
540
        s->intra_only = 1; /* force intra only for jpeg */
541
        if(avctx->codec->id == CODEC_ID_LJPEG && avctx->pix_fmt == PIX_FMT_BGRA){
542
            s->mjpeg_vsample[0] = s->mjpeg_hsample[0] =
543
            s->mjpeg_vsample[1] = s->mjpeg_hsample[1] =
544
            s->mjpeg_vsample[2] = s->mjpeg_hsample[2] = 1;
545
        }else{
546
            s->mjpeg_vsample[0] = 2;
547
            s->mjpeg_vsample[1] = 2>>chroma_v_shift;
548
            s->mjpeg_vsample[2] = 2>>chroma_v_shift;
549
            s->mjpeg_hsample[0] = 2;
550
            s->mjpeg_hsample[1] = 2>>chroma_h_shift;
551
            s->mjpeg_hsample[2] = 2>>chroma_h_shift;
552
        }
553
        if (!(CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER)
554
            || ff_mjpeg_encode_init(s) < 0)
555
            return -1;
556
        avctx->delay=0;
557
        s->low_delay=1;
558
        break;
559
    case CODEC_ID_H261:
560
        if (!CONFIG_H261_ENCODER)  return -1;
561
        if (ff_h261_get_picture_format(s->width, s->height) < 0) {
562
            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);
563
            return -1;
564
        }
565
        s->out_format = FMT_H261;
566
        avctx->delay=0;
567
        s->low_delay=1;
568
        break;
569
    case CODEC_ID_H263:
570
        if (!CONFIG_H263_ENCODER)  return -1;
571
        if (h263_get_picture_format(s->width, s->height) == 7) {
572
            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);
573
            return -1;
574
        }
575
        s->out_format = FMT_H263;
576
        s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
577
        avctx->delay=0;
578
        s->low_delay=1;
579
        break;
580
    case CODEC_ID_H263P:
581
        s->out_format = FMT_H263;
582
        s->h263_plus = 1;
583
        /* Fx */
584
        s->umvplus = (avctx->flags & CODEC_FLAG_H263P_UMV) ? 1:0;
585
        s->h263_aic= (avctx->flags & CODEC_FLAG_AC_PRED) ? 1:0;
586
        s->modified_quant= s->h263_aic;
587
        s->alt_inter_vlc= (avctx->flags & CODEC_FLAG_H263P_AIV) ? 1:0;
588
        s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
589
        s->loop_filter= (avctx->flags & CODEC_FLAG_LOOP_FILTER) ? 1:0;
590
        s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
591
        s->h263_slice_structured= (s->flags & CODEC_FLAG_H263P_SLICE_STRUCT) ? 1:0;
592

    
593
        /* /Fx */
594
        /* These are just to be sure */
595
        avctx->delay=0;
596
        s->low_delay=1;
597
        break;
598
    case CODEC_ID_FLV1:
599
        s->out_format = FMT_H263;
600
        s->h263_flv = 2; /* format = 1; 11-bit codes */
601
        s->unrestricted_mv = 1;
602
        s->rtp_mode=0; /* don't allow GOB */
603
        avctx->delay=0;
604
        s->low_delay=1;
605
        break;
606
    case CODEC_ID_RV10:
607
        s->out_format = FMT_H263;
608
        avctx->delay=0;
609
        s->low_delay=1;
610
        break;
611
    case CODEC_ID_RV20:
612
        s->out_format = FMT_H263;
613
        avctx->delay=0;
614
        s->low_delay=1;
615
        s->modified_quant=1;
616
        s->h263_aic=1;
617
        s->h263_plus=1;
618
        s->loop_filter=1;
619
        s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
620
        break;
621
    case CODEC_ID_MPEG4:
622
        s->out_format = FMT_H263;
623
        s->h263_pred = 1;
624
        s->unrestricted_mv = 1;
625
        s->low_delay= s->max_b_frames ? 0 : 1;
626
        avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
627
        break;
628
    case CODEC_ID_MSMPEG4V1:
629
        s->out_format = FMT_H263;
630
        s->h263_msmpeg4 = 1;
631
        s->h263_pred = 1;
632
        s->unrestricted_mv = 1;
633
        s->msmpeg4_version= 1;
634
        avctx->delay=0;
635
        s->low_delay=1;
636
        break;
637
    case CODEC_ID_MSMPEG4V2:
638
        s->out_format = FMT_H263;
639
        s->h263_msmpeg4 = 1;
640
        s->h263_pred = 1;
641
        s->unrestricted_mv = 1;
642
        s->msmpeg4_version= 2;
643
        avctx->delay=0;
644
        s->low_delay=1;
645
        break;
646
    case CODEC_ID_MSMPEG4V3:
647
        s->out_format = FMT_H263;
648
        s->h263_msmpeg4 = 1;
649
        s->h263_pred = 1;
650
        s->unrestricted_mv = 1;
651
        s->msmpeg4_version= 3;
652
        s->flipflop_rounding=1;
653
        avctx->delay=0;
654
        s->low_delay=1;
655
        break;
656
    case CODEC_ID_WMV1:
657
        s->out_format = FMT_H263;
658
        s->h263_msmpeg4 = 1;
659
        s->h263_pred = 1;
660
        s->unrestricted_mv = 1;
661
        s->msmpeg4_version= 4;
662
        s->flipflop_rounding=1;
663
        avctx->delay=0;
664
        s->low_delay=1;
665
        break;
666
    case CODEC_ID_WMV2:
667
        s->out_format = FMT_H263;
668
        s->h263_msmpeg4 = 1;
669
        s->h263_pred = 1;
670
        s->unrestricted_mv = 1;
671
        s->msmpeg4_version= 5;
672
        s->flipflop_rounding=1;
673
        avctx->delay=0;
674
        s->low_delay=1;
675
        break;
676
    default:
677
        return -1;
678
    }
679

    
680
    avctx->has_b_frames= !s->low_delay;
681

    
682
    s->encoding = 1;
683

    
684
    s->progressive_frame=
685
    s->progressive_sequence= !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN));
686

    
687
    /* init */
688
    if (MPV_common_init(s) < 0)
689
        return -1;
690

    
691
    if(!s->dct_quantize)
692
        s->dct_quantize = dct_quantize_c;
693
    if(!s->denoise_dct)
694
        s->denoise_dct = denoise_dct_c;
695
    s->fast_dct_quantize = s->dct_quantize;
696
    if(avctx->trellis)
697
        s->dct_quantize = dct_quantize_trellis_c;
698

    
699
    if((CONFIG_H263P_ENCODER || CONFIG_RV20_ENCODER) && s->modified_quant)
700
        s->chroma_qscale_table= ff_h263_chroma_qscale_table;
701

    
702
    s->quant_precision=5;
703

    
704
    ff_set_cmp(&s->dsp, s->dsp.ildct_cmp, s->avctx->ildct_cmp);
705
    ff_set_cmp(&s->dsp, s->dsp.frame_skip_cmp, s->avctx->frame_skip_cmp);
706

    
707
    if (CONFIG_H261_ENCODER && s->out_format == FMT_H261)
708
        ff_h261_encode_init(s);
709
    if (CONFIG_H263_ENCODER && s->out_format == FMT_H263)
710
        h263_encode_init(s);
711
    if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version)
712
        ff_msmpeg4_encode_init(s);
713
    if ((CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
714
        && s->out_format == FMT_MPEG1)
715
        ff_mpeg1_encode_init(s);
716

    
717
    /* init q matrix */
718
    for(i=0;i<64;i++) {
719
        int j= s->dsp.idct_permutation[i];
720
        if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){
721
            s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
722
            s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
723
        }else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){
724
            s->intra_matrix[j] =
725
            s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
726
        }else
727
        { /* mpeg1/2 */
728
            s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
729
            s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
730
        }
731
        if(s->avctx->intra_matrix)
732
            s->intra_matrix[j] = s->avctx->intra_matrix[i];
733
        if(s->avctx->inter_matrix)
734
            s->inter_matrix[j] = s->avctx->inter_matrix[i];
735
    }
736

    
737
    /* precompute matrix */
738
    /* for mjpeg, we do include qscale in the matrix */
739
    if (s->out_format != FMT_MJPEG) {
740
        ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
741
                       s->intra_matrix, s->intra_quant_bias, avctx->qmin, 31, 1);
742
        ff_convert_matrix(&s->dsp, s->q_inter_matrix, s->q_inter_matrix16,
743
                       s->inter_matrix, s->inter_quant_bias, avctx->qmin, 31, 0);
744
    }
745

    
746
    if(ff_rate_control_init(s) < 0)
747
        return -1;
748

    
749
    return 0;
750
}
751

    
752
av_cold int MPV_encode_end(AVCodecContext *avctx)
753
{
754
    MpegEncContext *s = avctx->priv_data;
755

    
756
    ff_rate_control_uninit(s);
757

    
758
    MPV_common_end(s);
759
    if ((CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER) && s->out_format == FMT_MJPEG)
760
        ff_mjpeg_encode_close(s);
761

    
762
    av_freep(&avctx->extradata);
763

    
764
    return 0;
765
}
766

    
767
static int get_sae(uint8_t *src, int ref, int stride){
768
    int x,y;
769
    int acc=0;
770

    
771
    for(y=0; y<16; y++){
772
        for(x=0; x<16; x++){
773
            acc+= FFABS(src[x+y*stride] - ref);
774
        }
775
    }
776

    
777
    return acc;
778
}
779

    
780
static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride){
781
    int x, y, w, h;
782
    int acc=0;
783

    
784
    w= s->width &~15;
785
    h= s->height&~15;
786

    
787
    for(y=0; y<h; y+=16){
788
        for(x=0; x<w; x+=16){
789
            int offset= x + y*stride;
790
            int sad = s->dsp.sad[0](NULL, src + offset, ref + offset, stride, 16);
791
            int mean= (s->dsp.pix_sum(src + offset, stride) + 128)>>8;
792
            int sae = get_sae(src + offset, mean, stride);
793

    
794
            acc+= sae + 500 < sad;
795
        }
796
    }
797
    return acc;
798
}
799

    
800

    
801
static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
802
    AVFrame *pic=NULL;
803
    int64_t pts;
804
    int i;
805
    const int encoding_delay= s->max_b_frames;
806
    int direct=1;
807

    
808
    if(pic_arg){
809
        pts= pic_arg->pts;
810
        pic_arg->display_picture_number= s->input_picture_number++;
811

    
812
        if(pts != AV_NOPTS_VALUE){
813
            if(s->user_specified_pts != AV_NOPTS_VALUE){
814
                int64_t time= pts;
815
                int64_t last= s->user_specified_pts;
816

    
817
                if(time <= last){
818
                    av_log(s->avctx, AV_LOG_ERROR, "Error, Invalid timestamp=%"PRId64", last=%"PRId64"\n", pts, s->user_specified_pts);
819
                    return -1;
820
                }
821
            }
822
            s->user_specified_pts= pts;
823
        }else{
824
            if(s->user_specified_pts != AV_NOPTS_VALUE){
825
                s->user_specified_pts=
826
                pts= s->user_specified_pts + 1;
827
                av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%"PRId64")\n", pts);
828
            }else{
829
                pts= pic_arg->display_picture_number;
830
            }
831
        }
832
    }
833

    
834
  if(pic_arg){
835
    if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0;
836
    if(pic_arg->linesize[0] != s->linesize) direct=0;
837
    if(pic_arg->linesize[1] != s->uvlinesize) direct=0;
838
    if(pic_arg->linesize[2] != s->uvlinesize) direct=0;
839

    
840
//    av_log(AV_LOG_DEBUG, "%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize);
841

    
842
    if(direct){
843
        i= ff_find_unused_picture(s, 1);
844

    
845
        pic= (AVFrame*)&s->picture[i];
846
        pic->reference= 3;
847

    
848
        for(i=0; i<4; i++){
849
            pic->data[i]= pic_arg->data[i];
850
            pic->linesize[i]= pic_arg->linesize[i];
851
        }
852
        ff_alloc_picture(s, (Picture*)pic, 1);
853
    }else{
854
        i= ff_find_unused_picture(s, 0);
855

    
856
        pic= (AVFrame*)&s->picture[i];
857
        pic->reference= 3;
858

    
859
        ff_alloc_picture(s, (Picture*)pic, 0);
860

    
861
        if(   pic->data[0] + INPLACE_OFFSET == pic_arg->data[0]
862
           && pic->data[1] + INPLACE_OFFSET == pic_arg->data[1]
863
           && pic->data[2] + INPLACE_OFFSET == pic_arg->data[2]){
864
       // empty
865
        }else{
866
            int h_chroma_shift, v_chroma_shift;
867
            avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
868

    
869
            for(i=0; i<3; i++){
870
                int src_stride= pic_arg->linesize[i];
871
                int dst_stride= i ? s->uvlinesize : s->linesize;
872
                int h_shift= i ? h_chroma_shift : 0;
873
                int v_shift= i ? v_chroma_shift : 0;
874
                int w= s->width >>h_shift;
875
                int h= s->height>>v_shift;
876
                uint8_t *src= pic_arg->data[i];
877
                uint8_t *dst= pic->data[i];
878

    
879
                if(!s->avctx->rc_buffer_size)
880
                    dst +=INPLACE_OFFSET;
881

    
882
                if(src_stride==dst_stride)
883
                    memcpy(dst, src, src_stride*h);
884
                else{
885
                    while(h--){
886
                        memcpy(dst, src, w);
887
                        dst += dst_stride;
888
                        src += src_stride;
889
                    }
890
                }
891
            }
892
        }
893
    }
894
    copy_picture_attributes(s, pic, pic_arg);
895
    pic->pts= pts; //we set this here to avoid modifiying pic_arg
896
  }
897

    
898
    /* shift buffer entries */
899
    for(i=1; i<MAX_PICTURE_COUNT /*s->encoding_delay+1*/; i++)
900
        s->input_picture[i-1]= s->input_picture[i];
901

    
902
    s->input_picture[encoding_delay]= (Picture*)pic;
903

    
904
    return 0;
905
}
906

    
907
static int skip_check(MpegEncContext *s, Picture *p, Picture *ref){
908
    int x, y, plane;
909
    int score=0;
910
    int64_t score64=0;
911

    
912
    for(plane=0; plane<3; plane++){
913
        const int stride= p->linesize[plane];
914
        const int bw= plane ? 1 : 2;
915
        for(y=0; y<s->mb_height*bw; y++){
916
            for(x=0; x<s->mb_width*bw; x++){
917
                int off= p->type == FF_BUFFER_TYPE_SHARED ? 0: 16;
918
                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);
919

    
920
                switch(s->avctx->frame_skip_exp){
921
                    case 0: score= FFMAX(score, v); break;
922
                    case 1: score+= FFABS(v);break;
923
                    case 2: score+= v*v;break;
924
                    case 3: score64+= FFABS(v*v*(int64_t)v);break;
925
                    case 4: score64+= v*v*(int64_t)(v*v);break;
926
                }
927
            }
928
        }
929
    }
930

    
931
    if(score) score64= score;
932

    
933
    if(score64 < s->avctx->frame_skip_threshold)
934
        return 1;
935
    if(score64 < ((s->avctx->frame_skip_factor * (int64_t)s->lambda)>>8))
936
        return 1;
937
    return 0;
938
}
939

    
940
static int estimate_best_b_count(MpegEncContext *s){
941
    AVCodec *codec= avcodec_find_encoder(s->avctx->codec_id);
942
    AVCodecContext *c= avcodec_alloc_context();
943
    AVFrame input[FF_MAX_B_FRAMES+2];
944
    const int scale= s->avctx->brd_scale;
945
    int i, j, out_size, p_lambda, b_lambda, lambda2;
946
    int outbuf_size= s->width * s->height; //FIXME
947
    uint8_t *outbuf= av_malloc(outbuf_size);
948
    int64_t best_rd= INT64_MAX;
949
    int best_b_count= -1;
950

    
951
    assert(scale>=0 && scale <=3);
952

    
953
//    emms_c();
954
    p_lambda= s->last_lambda_for[FF_P_TYPE]; //s->next_picture_ptr->quality;
955
    b_lambda= s->last_lambda_for[FF_B_TYPE]; //p_lambda *FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset;
956
    if(!b_lambda) b_lambda= p_lambda; //FIXME we should do this somewhere else
957
    lambda2= (b_lambda*b_lambda + (1<<FF_LAMBDA_SHIFT)/2 ) >> FF_LAMBDA_SHIFT;
958

    
959
    c->width = s->width >> scale;
960
    c->height= s->height>> scale;
961
    c->flags= CODEC_FLAG_QSCALE | CODEC_FLAG_PSNR | CODEC_FLAG_INPUT_PRESERVED /*| CODEC_FLAG_EMU_EDGE*/;
962
    c->flags|= s->avctx->flags & CODEC_FLAG_QPEL;
963
    c->mb_decision= s->avctx->mb_decision;
964
    c->me_cmp= s->avctx->me_cmp;
965
    c->mb_cmp= s->avctx->mb_cmp;
966
    c->me_sub_cmp= s->avctx->me_sub_cmp;
967
    c->pix_fmt = PIX_FMT_YUV420P;
968
    c->time_base= s->avctx->time_base;
969
    c->max_b_frames= s->max_b_frames;
970

    
971
    if (avcodec_open(c, codec) < 0)
972
        return -1;
973

    
974
    for(i=0; i<s->max_b_frames+2; i++){
975
        int ysize= c->width*c->height;
976
        int csize= (c->width/2)*(c->height/2);
977
        Picture pre_input, *pre_input_ptr= i ? s->input_picture[i-1] : s->next_picture_ptr;
978

    
979
        avcodec_get_frame_defaults(&input[i]);
980
        input[i].data[0]= av_malloc(ysize + 2*csize);
981
        input[i].data[1]= input[i].data[0] + ysize;
982
        input[i].data[2]= input[i].data[1] + csize;
983
        input[i].linesize[0]= c->width;
984
        input[i].linesize[1]=
985
        input[i].linesize[2]= c->width/2;
986

    
987
        if(pre_input_ptr && (!i || s->input_picture[i-1])) {
988
            pre_input= *pre_input_ptr;
989

    
990
            if(pre_input.type != FF_BUFFER_TYPE_SHARED && i) {
991
                pre_input.data[0]+=INPLACE_OFFSET;
992
                pre_input.data[1]+=INPLACE_OFFSET;
993
                pre_input.data[2]+=INPLACE_OFFSET;
994
            }
995

    
996
            s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0], pre_input.data[0], pre_input.linesize[0], c->width, c->height);
997
            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);
998
            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);
999
        }
1000
    }
1001

    
1002
    for(j=0; j<s->max_b_frames+1; j++){
1003
        int64_t rd=0;
1004

    
1005
        if(!s->input_picture[j])
1006
            break;
1007

    
1008
        c->error[0]= c->error[1]= c->error[2]= 0;
1009

    
1010
        input[0].pict_type= FF_I_TYPE;
1011
        input[0].quality= 1 * FF_QP2LAMBDA;
1012
        out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[0]);
1013
//        rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT;
1014

    
1015
        for(i=0; i<s->max_b_frames+1; i++){
1016
            int is_p= i % (j+1) == j || i==s->max_b_frames;
1017

    
1018
            input[i+1].pict_type= is_p ? FF_P_TYPE : FF_B_TYPE;
1019
            input[i+1].quality= is_p ? p_lambda : b_lambda;
1020
            out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[i+1]);
1021
            rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1022
        }
1023

    
1024
        /* get the delayed frames */
1025
        while(out_size){
1026
            out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);
1027
            rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1028
        }
1029

    
1030
        rd += c->error[0] + c->error[1] + c->error[2];
1031

    
1032
        if(rd < best_rd){
1033
            best_rd= rd;
1034
            best_b_count= j;
1035
        }
1036
    }
1037

    
1038
    av_freep(&outbuf);
1039
    avcodec_close(c);
1040
    av_freep(&c);
1041

    
1042
    for(i=0; i<s->max_b_frames+2; i++){
1043
        av_freep(&input[i].data[0]);
1044
    }
1045

    
1046
    return best_b_count;
1047
}
1048

    
1049
static void select_input_picture(MpegEncContext *s){
1050
    int i;
1051

    
1052
    for(i=1; i<MAX_PICTURE_COUNT; i++)
1053
        s->reordered_input_picture[i-1]= s->reordered_input_picture[i];
1054
    s->reordered_input_picture[MAX_PICTURE_COUNT-1]= NULL;
1055

    
1056
    /* set next picture type & ordering */
1057
    if(s->reordered_input_picture[0]==NULL && s->input_picture[0]){
1058
        if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture_ptr==NULL || s->intra_only){
1059
            s->reordered_input_picture[0]= s->input_picture[0];
1060
            s->reordered_input_picture[0]->pict_type= FF_I_TYPE;
1061
            s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1062
        }else{
1063
            int b_frames;
1064

    
1065
            if(s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor){
1066
                if(s->picture_in_gop_number < s->gop_size && skip_check(s, s->input_picture[0], s->next_picture_ptr)){
1067
                //FIXME check that te gop check above is +-1 correct
1068
//av_log(NULL, AV_LOG_DEBUG, "skip %p %"PRId64"\n", s->input_picture[0]->data[0], s->input_picture[0]->pts);
1069

    
1070
                    if(s->input_picture[0]->type == FF_BUFFER_TYPE_SHARED){
1071
                        for(i=0; i<4; i++)
1072
                            s->input_picture[0]->data[i]= NULL;
1073
                        s->input_picture[0]->type= 0;
1074
                    }else{
1075
                        assert(   s->input_picture[0]->type==FF_BUFFER_TYPE_USER
1076
                               || s->input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1077

    
1078
                        s->avctx->release_buffer(s->avctx, (AVFrame*)s->input_picture[0]);
1079
                    }
1080

    
1081
                    emms_c();
1082
                    ff_vbv_update(s, 0);
1083

    
1084
                    goto no_output_pic;
1085
                }
1086
            }
1087

    
1088
            if(s->flags&CODEC_FLAG_PASS2){
1089
                for(i=0; i<s->max_b_frames+1; i++){
1090
                    int pict_num= s->input_picture[0]->display_picture_number + i;
1091

    
1092
                    if(pict_num >= s->rc_context.num_entries)
1093
                        break;
1094
                    if(!s->input_picture[i]){
1095
                        s->rc_context.entry[pict_num-1].new_pict_type = FF_P_TYPE;
1096
                        break;
1097
                    }
1098

    
1099
                    s->input_picture[i]->pict_type=
1100
                        s->rc_context.entry[pict_num].new_pict_type;
1101
                }
1102
            }
1103

    
1104
            if(s->avctx->b_frame_strategy==0){
1105
                b_frames= s->max_b_frames;
1106
                while(b_frames && !s->input_picture[b_frames]) b_frames--;
1107
            }else if(s->avctx->b_frame_strategy==1){
1108
                for(i=1; i<s->max_b_frames+1; i++){
1109
                    if(s->input_picture[i] && s->input_picture[i]->b_frame_score==0){
1110
                        s->input_picture[i]->b_frame_score=
1111
                            get_intra_count(s, s->input_picture[i  ]->data[0],
1112
                                               s->input_picture[i-1]->data[0], s->linesize) + 1;
1113
                    }
1114
                }
1115
                for(i=0; i<s->max_b_frames+1; i++){
1116
                    if(s->input_picture[i]==NULL || s->input_picture[i]->b_frame_score - 1 > s->mb_num/s->avctx->b_sensitivity) break;
1117
                }
1118

    
1119
                b_frames= FFMAX(0, i-1);
1120

    
1121
                /* reset scores */
1122
                for(i=0; i<b_frames+1; i++){
1123
                    s->input_picture[i]->b_frame_score=0;
1124
                }
1125
            }else if(s->avctx->b_frame_strategy==2){
1126
                b_frames= estimate_best_b_count(s);
1127
            }else{
1128
                av_log(s->avctx, AV_LOG_ERROR, "illegal b frame strategy\n");
1129
                b_frames=0;
1130
            }
1131

    
1132
            emms_c();
1133
//static int b_count=0;
1134
//b_count+= b_frames;
1135
//av_log(s->avctx, AV_LOG_DEBUG, "b_frames: %d\n", b_count);
1136

    
1137
            for(i= b_frames - 1; i>=0; i--){
1138
                int type= s->input_picture[i]->pict_type;
1139
                if(type && type != FF_B_TYPE)
1140
                    b_frames= i;
1141
            }
1142
            if(s->input_picture[b_frames]->pict_type == FF_B_TYPE && b_frames == s->max_b_frames){
1143
                av_log(s->avctx, AV_LOG_ERROR, "warning, too many b frames in a row\n");
1144
            }
1145

    
1146
            if(s->picture_in_gop_number + b_frames >= s->gop_size){
1147
              if((s->flags2 & CODEC_FLAG2_STRICT_GOP) && s->gop_size > s->picture_in_gop_number){
1148
                    b_frames= s->gop_size - s->picture_in_gop_number - 1;
1149
              }else{
1150
                if(s->flags & CODEC_FLAG_CLOSED_GOP)
1151
                    b_frames=0;
1152
                s->input_picture[b_frames]->pict_type= FF_I_TYPE;
1153
              }
1154
            }
1155

    
1156
            if(   (s->flags & CODEC_FLAG_CLOSED_GOP)
1157
               && b_frames
1158
               && s->input_picture[b_frames]->pict_type== FF_I_TYPE)
1159
                b_frames--;
1160

    
1161
            s->reordered_input_picture[0]= s->input_picture[b_frames];
1162
            if(s->reordered_input_picture[0]->pict_type != FF_I_TYPE)
1163
                s->reordered_input_picture[0]->pict_type= FF_P_TYPE;
1164
            s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1165
            for(i=0; i<b_frames; i++){
1166
                s->reordered_input_picture[i+1]= s->input_picture[i];
1167
                s->reordered_input_picture[i+1]->pict_type= FF_B_TYPE;
1168
                s->reordered_input_picture[i+1]->coded_picture_number= s->coded_picture_number++;
1169
            }
1170
        }
1171
    }
1172
no_output_pic:
1173
    if(s->reordered_input_picture[0]){
1174
        s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=FF_B_TYPE ? 3 : 0;
1175

    
1176
        ff_copy_picture(&s->new_picture, s->reordered_input_picture[0]);
1177

    
1178
        if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_SHARED || s->avctx->rc_buffer_size){
1179
            // input is a shared pix, so we can't modifiy it -> alloc a new one & ensure that the shared one is reuseable
1180

    
1181
            int i= ff_find_unused_picture(s, 0);
1182
            Picture *pic= &s->picture[i];
1183

    
1184
            pic->reference              = s->reordered_input_picture[0]->reference;
1185
            ff_alloc_picture(s, pic, 0);
1186

    
1187
            /* mark us unused / free shared pic */
1188
            if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_INTERNAL)
1189
                s->avctx->release_buffer(s->avctx, (AVFrame*)s->reordered_input_picture[0]);
1190
            for(i=0; i<4; i++)
1191
                s->reordered_input_picture[0]->data[i]= NULL;
1192
            s->reordered_input_picture[0]->type= 0;
1193

    
1194
            copy_picture_attributes(s, (AVFrame*)pic, (AVFrame*)s->reordered_input_picture[0]);
1195

    
1196
            s->current_picture_ptr= pic;
1197
        }else{
1198
            // input is not a shared pix -> reuse buffer for current_pix
1199

    
1200
            assert(   s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
1201
                   || s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1202

    
1203
            s->current_picture_ptr= s->reordered_input_picture[0];
1204
            for(i=0; i<4; i++){
1205
                s->new_picture.data[i]+= INPLACE_OFFSET;
1206
            }
1207
        }
1208
        ff_copy_picture(&s->current_picture, s->current_picture_ptr);
1209

    
1210
        s->picture_number= s->new_picture.display_picture_number;
1211
//printf("dpn:%d\n", s->picture_number);
1212
    }else{
1213
       memset(&s->new_picture, 0, sizeof(Picture));
1214
    }
1215
}
1216

    
1217
int MPV_encode_picture(AVCodecContext *avctx,
1218
                       unsigned char *buf, int buf_size, void *data)
1219
{
1220
    MpegEncContext *s = avctx->priv_data;
1221
    AVFrame *pic_arg = data;
1222
    int i, stuffing_count;
1223

    
1224
    for(i=0; i<avctx->thread_count; i++){
1225
        int start_y= s->thread_context[i]->start_mb_y;
1226
        int   end_y= s->thread_context[i]->  end_mb_y;
1227
        int h= s->mb_height;
1228
        uint8_t *start= buf + (size_t)(((int64_t) buf_size)*start_y/h);
1229
        uint8_t *end  = buf + (size_t)(((int64_t) buf_size)*  end_y/h);
1230

    
1231
        init_put_bits(&s->thread_context[i]->pb, start, end - start);
1232
    }
1233

    
1234
    s->picture_in_gop_number++;
1235

    
1236
    if(load_input_picture(s, pic_arg) < 0)
1237
        return -1;
1238

    
1239
    select_input_picture(s);
1240

    
1241
    /* output? */
1242
    if(s->new_picture.data[0]){
1243
        s->pict_type= s->new_picture.pict_type;
1244
//emms_c();
1245
//printf("qs:%f %f %d\n", s->new_picture.quality, s->current_picture.quality, s->qscale);
1246
        MPV_frame_start(s, avctx);
1247
vbv_retry:
1248
        if (encode_picture(s, s->picture_number) < 0)
1249
            return -1;
1250

    
1251
        avctx->header_bits = s->header_bits;
1252
        avctx->mv_bits     = s->mv_bits;
1253
        avctx->misc_bits   = s->misc_bits;
1254
        avctx->i_tex_bits  = s->i_tex_bits;
1255
        avctx->p_tex_bits  = s->p_tex_bits;
1256
        avctx->i_count     = s->i_count;
1257
        avctx->p_count     = s->mb_num - s->i_count - s->skip_count; //FIXME f/b_count in avctx
1258
        avctx->skip_count  = s->skip_count;
1259

    
1260
        MPV_frame_end(s);
1261

    
1262
        if (CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG)
1263
            ff_mjpeg_encode_picture_trailer(s);
1264

    
1265
        if(avctx->rc_buffer_size){
1266
            RateControlContext *rcc= &s->rc_context;
1267
            int max_size= rcc->buffer_index * avctx->rc_max_available_vbv_use;
1268

    
1269
            if(put_bits_count(&s->pb) > max_size && s->lambda < s->avctx->lmax){
1270
                s->next_lambda= FFMAX(s->lambda+1, s->lambda*(s->qscale+1) / s->qscale);
1271
                if(s->adaptive_quant){
1272
                    int i;
1273
                    for(i=0; i<s->mb_height*s->mb_stride; i++)
1274
                        s->lambda_table[i]= FFMAX(s->lambda_table[i]+1, s->lambda_table[i]*(s->qscale+1) / s->qscale);
1275
                }
1276
                s->mb_skipped = 0;        //done in MPV_frame_start()
1277
                if(s->pict_type==FF_P_TYPE){ //done in encode_picture() so we must undo it
1278
                    if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
1279
                        s->no_rounding ^= 1;
1280
                }
1281
                if(s->pict_type!=FF_B_TYPE){
1282
                    s->time_base= s->last_time_base;
1283
                    s->last_non_b_time= s->time - s->pp_time;
1284
                }
1285
//                av_log(NULL, AV_LOG_ERROR, "R:%d ", s->next_lambda);
1286
                for(i=0; i<avctx->thread_count; i++){
1287
                    PutBitContext *pb= &s->thread_context[i]->pb;
1288
                    init_put_bits(pb, pb->buf, pb->buf_end - pb->buf);
1289
                }
1290
                goto vbv_retry;
1291
            }
1292

    
1293
            assert(s->avctx->rc_max_rate);
1294
        }
1295

    
1296
        if(s->flags&CODEC_FLAG_PASS1)
1297
            ff_write_pass1_stats(s);
1298

    
1299
        for(i=0; i<4; i++){
1300
            s->current_picture_ptr->error[i]= s->current_picture.error[i];
1301
            avctx->error[i] += s->current_picture_ptr->error[i];
1302
        }
1303

    
1304
        if(s->flags&CODEC_FLAG_PASS1)
1305
            assert(avctx->header_bits + avctx->mv_bits + avctx->misc_bits + avctx->i_tex_bits + avctx->p_tex_bits == put_bits_count(&s->pb));
1306
        flush_put_bits(&s->pb);
1307
        s->frame_bits  = put_bits_count(&s->pb);
1308

    
1309
        stuffing_count= ff_vbv_update(s, s->frame_bits);
1310
        if(stuffing_count){
1311
            if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < stuffing_count + 50){
1312
                av_log(s->avctx, AV_LOG_ERROR, "stuffing too large\n");
1313
                return -1;
1314
            }
1315

    
1316
            switch(s->codec_id){
1317
            case CODEC_ID_MPEG1VIDEO:
1318
            case CODEC_ID_MPEG2VIDEO:
1319
                while(stuffing_count--){
1320
                    put_bits(&s->pb, 8, 0);
1321
                }
1322
            break;
1323
            case CODEC_ID_MPEG4:
1324
                put_bits(&s->pb, 16, 0);
1325
                put_bits(&s->pb, 16, 0x1C3);
1326
                stuffing_count -= 4;
1327
                while(stuffing_count--){
1328
                    put_bits(&s->pb, 8, 0xFF);
1329
                }
1330
            break;
1331
            default:
1332
                av_log(s->avctx, AV_LOG_ERROR, "vbv buffer overflow\n");
1333
            }
1334
            flush_put_bits(&s->pb);
1335
            s->frame_bits  = put_bits_count(&s->pb);
1336
        }
1337

    
1338
        /* update mpeg1/2 vbv_delay for CBR */
1339
        if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && s->out_format == FMT_MPEG1
1340
           && 90000LL * (avctx->rc_buffer_size-1) <= s->avctx->rc_max_rate*0xFFFFLL){
1341
            int vbv_delay, min_delay;
1342
            double inbits = s->avctx->rc_max_rate*av_q2d(s->avctx->time_base);
1343
            int    minbits= s->frame_bits - 8*(s->vbv_delay_ptr - s->pb.buf - 1);
1344
            double bits   = s->rc_context.buffer_index + minbits - inbits;
1345

    
1346
            if(bits<0)
1347
                av_log(s->avctx, AV_LOG_ERROR, "Internal error, negative bits\n");
1348

    
1349
            assert(s->repeat_first_field==0);
1350

    
1351
            vbv_delay=     bits * 90000                               / s->avctx->rc_max_rate;
1352
            min_delay= (minbits * 90000LL + s->avctx->rc_max_rate - 1)/ s->avctx->rc_max_rate;
1353

    
1354
            vbv_delay= FFMAX(vbv_delay, min_delay);
1355

    
1356
            assert(vbv_delay < 0xFFFF);
1357

    
1358
            s->vbv_delay_ptr[0] &= 0xF8;
1359
            s->vbv_delay_ptr[0] |= vbv_delay>>13;
1360
            s->vbv_delay_ptr[1]  = vbv_delay>>5;
1361
            s->vbv_delay_ptr[2] &= 0x07;
1362
            s->vbv_delay_ptr[2] |= vbv_delay<<3;
1363
        }
1364
        s->total_bits += s->frame_bits;
1365
        avctx->frame_bits  = s->frame_bits;
1366
    }else{
1367
        assert((put_bits_ptr(&s->pb) == s->pb.buf));
1368
        s->frame_bits=0;
1369
    }
1370
    assert((s->frame_bits&7)==0);
1371

    
1372
    return s->frame_bits/8;
1373
}
1374

    
1375
static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold)
1376
{
1377
    static const char tab[64]=
1378
        {3,2,2,1,1,1,1,1,
1379
         1,1,1,1,1,1,1,1,
1380
         1,1,1,1,1,1,1,1,
1381
         0,0,0,0,0,0,0,0,
1382
         0,0,0,0,0,0,0,0,
1383
         0,0,0,0,0,0,0,0,
1384
         0,0,0,0,0,0,0,0,
1385
         0,0,0,0,0,0,0,0};
1386
    int score=0;
1387
    int run=0;
1388
    int i;
1389
    DCTELEM *block= s->block[n];
1390
    const int last_index= s->block_last_index[n];
1391
    int skip_dc;
1392

    
1393
    if(threshold<0){
1394
        skip_dc=0;
1395
        threshold= -threshold;
1396
    }else
1397
        skip_dc=1;
1398

    
1399
    /* Are all we could set to zero already zero? */
1400
    if(last_index<=skip_dc - 1) return;
1401

    
1402
    for(i=0; i<=last_index; i++){
1403
        const int j = s->intra_scantable.permutated[i];
1404
        const int level = FFABS(block[j]);
1405
        if(level==1){
1406
            if(skip_dc && i==0) continue;
1407
            score+= tab[run];
1408
            run=0;
1409
        }else if(level>1){
1410
            return;
1411
        }else{
1412
            run++;
1413
        }
1414
    }
1415
    if(score >= threshold) return;
1416
    for(i=skip_dc; i<=last_index; i++){
1417
        const int j = s->intra_scantable.permutated[i];
1418
        block[j]=0;
1419
    }
1420
    if(block[0]) s->block_last_index[n]= 0;
1421
    else         s->block_last_index[n]= -1;
1422
}
1423

    
1424
static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1425
{
1426
    int i;
1427
    const int maxlevel= s->max_qcoeff;
1428
    const int minlevel= s->min_qcoeff;
1429
    int overflow=0;
1430

    
1431
    if(s->mb_intra){
1432
        i=1; //skip clipping of intra dc
1433
    }else
1434
        i=0;
1435

    
1436
    for(;i<=last_index; i++){
1437
        const int j= s->intra_scantable.permutated[i];
1438
        int level = block[j];
1439

    
1440
        if     (level>maxlevel){
1441
            level=maxlevel;
1442
            overflow++;
1443
        }else if(level<minlevel){
1444
            level=minlevel;
1445
            overflow++;
1446
        }
1447

    
1448
        block[j]= level;
1449
    }
1450

    
1451
    if(overflow && s->avctx->mb_decision == FF_MB_DECISION_SIMPLE)
1452
        av_log(s->avctx, AV_LOG_INFO, "warning, clipping %d dct coefficients to %d..%d\n", overflow, minlevel, maxlevel);
1453
}
1454

    
1455
static void get_visual_weight(int16_t *weight, uint8_t *ptr, int stride){
1456
    int x, y;
1457
//FIXME optimize
1458
    for(y=0; y<8; y++){
1459
        for(x=0; x<8; x++){
1460
            int x2, y2;
1461
            int sum=0;
1462
            int sqr=0;
1463
            int count=0;
1464

    
1465
            for(y2= FFMAX(y-1, 0); y2 < FFMIN(8, y+2); y2++){
1466
                for(x2= FFMAX(x-1, 0); x2 < FFMIN(8, x+2); x2++){
1467
                    int v= ptr[x2 + y2*stride];
1468
                    sum += v;
1469
                    sqr += v*v;
1470
                    count++;
1471
                }
1472
            }
1473
            weight[x + 8*y]= (36*ff_sqrt(count*sqr - sum*sum)) / count;
1474
        }
1475
    }
1476
}
1477

    
1478
static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count)
1479
{
1480
    int16_t weight[8][64];
1481
    DCTELEM orig[8][64];
1482
    const int mb_x= s->mb_x;
1483
    const int mb_y= s->mb_y;
1484
    int i;
1485
    int skip_dct[8];
1486
    int dct_offset   = s->linesize*8; //default for progressive frames
1487
    uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1488
    int wrap_y, wrap_c;
1489

    
1490
    for(i=0; i<mb_block_count; i++) skip_dct[i]=s->skipdct;
1491

    
1492
    if(s->adaptive_quant){
1493
        const int last_qp= s->qscale;
1494
        const int mb_xy= mb_x + mb_y*s->mb_stride;
1495

    
1496
        s->lambda= s->lambda_table[mb_xy];
1497
        update_qscale(s);
1498

    
1499
        if(!(s->flags&CODEC_FLAG_QP_RD)){
1500
            s->qscale= s->current_picture_ptr->qscale_table[mb_xy];
1501
            s->dquant= s->qscale - last_qp;
1502

    
1503
            if(s->out_format==FMT_H263){
1504
                s->dquant= av_clip(s->dquant, -2, 2);
1505

    
1506
                if(s->codec_id==CODEC_ID_MPEG4){
1507
                    if(!s->mb_intra){
1508
                        if(s->pict_type == FF_B_TYPE){
1509
                            if(s->dquant&1 || s->mv_dir&MV_DIRECT)
1510
                                s->dquant= 0;
1511
                        }
1512
                        if(s->mv_type==MV_TYPE_8X8)
1513
                            s->dquant=0;
1514
                    }
1515
                }
1516
            }
1517
        }
1518
        ff_set_qscale(s, last_qp + s->dquant);
1519
    }else if(s->flags&CODEC_FLAG_QP_RD)
1520
        ff_set_qscale(s, s->qscale + s->dquant);
1521

    
1522
    wrap_y = s->linesize;
1523
    wrap_c = s->uvlinesize;
1524
    ptr_y = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
1525
    ptr_cb = s->new_picture.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1526
    ptr_cr = s->new_picture.data[2] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1527

    
1528
    if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
1529
        uint8_t *ebuf= s->edge_emu_buffer + 32;
1530
        ff_emulated_edge_mc(ebuf            , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width   , s->height);
1531
        ptr_y= ebuf;
1532
        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);
1533
        ptr_cb= ebuf+18*wrap_y;
1534
        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);
1535
        ptr_cr= ebuf+18*wrap_y+8;
1536
    }
1537

    
1538
    if (s->mb_intra) {
1539
        if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1540
            int progressive_score, interlaced_score;
1541

    
1542
            s->interlaced_dct=0;
1543
            progressive_score= s->dsp.ildct_cmp[4](s, ptr_y           , NULL, wrap_y, 8)
1544
                              +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y*8, NULL, wrap_y, 8) - 400;
1545

    
1546
            if(progressive_score > 0){
1547
                interlaced_score = s->dsp.ildct_cmp[4](s, ptr_y           , NULL, wrap_y*2, 8)
1548
                                  +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y  , NULL, wrap_y*2, 8);
1549
                if(progressive_score > interlaced_score){
1550
                    s->interlaced_dct=1;
1551

    
1552
                    dct_offset= wrap_y;
1553
                    wrap_y<<=1;
1554
                    if (s->chroma_format == CHROMA_422)
1555
                        wrap_c<<=1;
1556
                }
1557
            }
1558
        }
1559

    
1560
        s->dsp.get_pixels(s->block[0], ptr_y                 , wrap_y);
1561
        s->dsp.get_pixels(s->block[1], ptr_y              + 8, wrap_y);
1562
        s->dsp.get_pixels(s->block[2], ptr_y + dct_offset    , wrap_y);
1563
        s->dsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y);
1564

    
1565
        if(s->flags&CODEC_FLAG_GRAY){
1566
            skip_dct[4]= 1;
1567
            skip_dct[5]= 1;
1568
        }else{
1569
            s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c);
1570
            s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c);
1571
            if(!s->chroma_y_shift){ /* 422 */
1572
                s->dsp.get_pixels(s->block[6], ptr_cb + (dct_offset>>1), wrap_c);
1573
                s->dsp.get_pixels(s->block[7], ptr_cr + (dct_offset>>1), wrap_c);
1574
            }
1575
        }
1576
    }else{
1577
        op_pixels_func (*op_pix)[4];
1578
        qpel_mc_func (*op_qpix)[16];
1579
        uint8_t *dest_y, *dest_cb, *dest_cr;
1580

    
1581
        dest_y  = s->dest[0];
1582
        dest_cb = s->dest[1];
1583
        dest_cr = s->dest[2];
1584

    
1585
        if ((!s->no_rounding) || s->pict_type==FF_B_TYPE){
1586
            op_pix = s->dsp.put_pixels_tab;
1587
            op_qpix= s->dsp.put_qpel_pixels_tab;
1588
        }else{
1589
            op_pix = s->dsp.put_no_rnd_pixels_tab;
1590
            op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab;
1591
        }
1592

    
1593
        if (s->mv_dir & MV_DIR_FORWARD) {
1594
            MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix);
1595
            op_pix = s->dsp.avg_pixels_tab;
1596
            op_qpix= s->dsp.avg_qpel_pixels_tab;
1597
        }
1598
        if (s->mv_dir & MV_DIR_BACKWARD) {
1599
            MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix);
1600
        }
1601

    
1602
        if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1603
            int progressive_score, interlaced_score;
1604

    
1605
            s->interlaced_dct=0;
1606
            progressive_score= s->dsp.ildct_cmp[0](s, dest_y           , ptr_y           , wrap_y, 8)
1607
                              +s->dsp.ildct_cmp[0](s, dest_y + wrap_y*8, ptr_y + wrap_y*8, wrap_y, 8) - 400;
1608

    
1609
            if(s->avctx->ildct_cmp == FF_CMP_VSSE) progressive_score -= 400;
1610

    
1611
            if(progressive_score>0){
1612
                interlaced_score = s->dsp.ildct_cmp[0](s, dest_y           , ptr_y           , wrap_y*2, 8)
1613
                                  +s->dsp.ildct_cmp[0](s, dest_y + wrap_y  , ptr_y + wrap_y  , wrap_y*2, 8);
1614

    
1615
                if(progressive_score > interlaced_score){
1616
                    s->interlaced_dct=1;
1617

    
1618
                    dct_offset= wrap_y;
1619
                    wrap_y<<=1;
1620
                    if (s->chroma_format == CHROMA_422)
1621
                        wrap_c<<=1;
1622
                }
1623
            }
1624
        }
1625

    
1626
        s->dsp.diff_pixels(s->block[0], ptr_y                 , dest_y                 , wrap_y);
1627
        s->dsp.diff_pixels(s->block[1], ptr_y              + 8, dest_y              + 8, wrap_y);
1628
        s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset    , dest_y + dct_offset    , wrap_y);
1629
        s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y);
1630

    
1631
        if(s->flags&CODEC_FLAG_GRAY){
1632
            skip_dct[4]= 1;
1633
            skip_dct[5]= 1;
1634
        }else{
1635
            s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
1636
            s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
1637
            if(!s->chroma_y_shift){ /* 422 */
1638
                s->dsp.diff_pixels(s->block[6], ptr_cb + (dct_offset>>1), dest_cb + (dct_offset>>1), wrap_c);
1639
                s->dsp.diff_pixels(s->block[7], ptr_cr + (dct_offset>>1), dest_cr + (dct_offset>>1), wrap_c);
1640
            }
1641
        }
1642
        /* pre quantization */
1643
        if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){
1644
            //FIXME optimize
1645
            if(s->dsp.sad[1](NULL, ptr_y               , dest_y               , wrap_y, 8) < 20*s->qscale) skip_dct[0]= 1;
1646
            if(s->dsp.sad[1](NULL, ptr_y            + 8, dest_y            + 8, wrap_y, 8) < 20*s->qscale) skip_dct[1]= 1;
1647
            if(s->dsp.sad[1](NULL, ptr_y +dct_offset   , dest_y +dct_offset   , wrap_y, 8) < 20*s->qscale) skip_dct[2]= 1;
1648
            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;
1649
            if(s->dsp.sad[1](NULL, ptr_cb              , dest_cb              , wrap_c, 8) < 20*s->qscale) skip_dct[4]= 1;
1650
            if(s->dsp.sad[1](NULL, ptr_cr              , dest_cr              , wrap_c, 8) < 20*s->qscale) skip_dct[5]= 1;
1651
            if(!s->chroma_y_shift){ /* 422 */
1652
                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;
1653
                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;
1654
            }
1655
        }
1656
    }
1657

    
1658
    if(s->avctx->quantizer_noise_shaping){
1659
        if(!skip_dct[0]) get_visual_weight(weight[0], ptr_y                 , wrap_y);
1660
        if(!skip_dct[1]) get_visual_weight(weight[1], ptr_y              + 8, wrap_y);
1661
        if(!skip_dct[2]) get_visual_weight(weight[2], ptr_y + dct_offset    , wrap_y);
1662
        if(!skip_dct[3]) get_visual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y);
1663
        if(!skip_dct[4]) get_visual_weight(weight[4], ptr_cb                , wrap_c);
1664
        if(!skip_dct[5]) get_visual_weight(weight[5], ptr_cr                , wrap_c);
1665
        if(!s->chroma_y_shift){ /* 422 */
1666
            if(!skip_dct[6]) get_visual_weight(weight[6], ptr_cb + (dct_offset>>1), wrap_c);
1667
            if(!skip_dct[7]) get_visual_weight(weight[7], ptr_cr + (dct_offset>>1), wrap_c);
1668
        }
1669
        memcpy(orig[0], s->block[0], sizeof(DCTELEM)*64*mb_block_count);
1670
    }
1671

    
1672
    /* DCT & quantize */
1673
    assert(s->out_format!=FMT_MJPEG || s->qscale==8);
1674
    {
1675
        for(i=0;i<mb_block_count;i++) {
1676
            if(!skip_dct[i]){
1677
                int overflow;
1678
                s->block_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow);
1679
            // FIXME we could decide to change to quantizer instead of clipping
1680
            // JS: I don't think that would be a good idea it could lower quality instead
1681
            //     of improve it. Just INTRADC clipping deserves changes in quantizer
1682
                if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1683
            }else
1684
                s->block_last_index[i]= -1;
1685
        }
1686
        if(s->avctx->quantizer_noise_shaping){
1687
            for(i=0;i<mb_block_count;i++) {
1688
                if(!skip_dct[i]){
1689
                    s->block_last_index[i] = dct_quantize_refine(s, s->block[i], weight[i], orig[i], i, s->qscale);
1690
                }
1691
            }
1692
        }
1693

    
1694
        if(s->luma_elim_threshold && !s->mb_intra)
1695
            for(i=0; i<4; i++)
1696
                dct_single_coeff_elimination(s, i, s->luma_elim_threshold);
1697
        if(s->chroma_elim_threshold && !s->mb_intra)
1698
            for(i=4; i<mb_block_count; i++)
1699
                dct_single_coeff_elimination(s, i, s->chroma_elim_threshold);
1700

    
1701
        if(s->flags & CODEC_FLAG_CBP_RD){
1702
            for(i=0;i<mb_block_count;i++) {
1703
                if(s->block_last_index[i] == -1)
1704
                    s->coded_score[i]= INT_MAX/256;
1705
            }
1706
        }
1707
    }
1708

    
1709
    if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
1710
        s->block_last_index[4]=
1711
        s->block_last_index[5]= 0;
1712
        s->block[4][0]=
1713
        s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale;
1714
    }
1715

    
1716
    //non c quantize code returns incorrect block_last_index FIXME
1717
    if(s->alternate_scan && s->dct_quantize != dct_quantize_c){
1718
        for(i=0; i<mb_block_count; i++){
1719
            int j;
1720
            if(s->block_last_index[i]>0){
1721
                for(j=63; j>0; j--){
1722
                    if(s->block[i][ s->intra_scantable.permutated[j] ]) break;
1723
                }
1724
                s->block_last_index[i]= j;
1725
            }
1726
        }
1727
    }
1728

    
1729
    /* huffman encode */
1730
    switch(s->codec_id){ //FIXME funct ptr could be slightly faster
1731
    case CODEC_ID_MPEG1VIDEO:
1732
    case CODEC_ID_MPEG2VIDEO:
1733
        if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
1734
            mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1735
        break;
1736
    case CODEC_ID_MPEG4:
1737
        if (CONFIG_MPEG4_ENCODER)
1738
            mpeg4_encode_mb(s, s->block, motion_x, motion_y);
1739
        break;
1740
    case CODEC_ID_MSMPEG4V2:
1741
    case CODEC_ID_MSMPEG4V3:
1742
    case CODEC_ID_WMV1:
1743
        if (CONFIG_MSMPEG4_ENCODER)
1744
            msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1745
        break;
1746
    case CODEC_ID_WMV2:
1747
        if (CONFIG_WMV2_ENCODER)
1748
            ff_wmv2_encode_mb(s, s->block, motion_x, motion_y);
1749
        break;
1750
    case CODEC_ID_H261:
1751
        if (CONFIG_H261_ENCODER)
1752
            ff_h261_encode_mb(s, s->block, motion_x, motion_y);
1753
        break;
1754
    case CODEC_ID_H263:
1755
    case CODEC_ID_H263P:
1756
    case CODEC_ID_FLV1:
1757
    case CODEC_ID_RV10:
1758
    case CODEC_ID_RV20:
1759
        if (CONFIG_H263_ENCODER)
1760
            h263_encode_mb(s, s->block, motion_x, motion_y);
1761
        break;
1762
    case CODEC_ID_MJPEG:
1763
        if (CONFIG_MJPEG_ENCODER)
1764
            ff_mjpeg_encode_mb(s, s->block);
1765
        break;
1766
    default:
1767
        assert(0);
1768
    }
1769
}
1770

    
1771
static av_always_inline void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
1772
{
1773
    if (s->chroma_format == CHROMA_420) encode_mb_internal(s, motion_x, motion_y,  8, 6);
1774
    else                                encode_mb_internal(s, motion_x, motion_y, 16, 8);
1775
}
1776

    
1777
static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1778
    int i;
1779

    
1780
    memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1781

    
1782
    /* mpeg1 */
1783
    d->mb_skip_run= s->mb_skip_run;
1784
    for(i=0; i<3; i++)
1785
        d->last_dc[i]= s->last_dc[i];
1786

    
1787
    /* statistics */
1788
    d->mv_bits= s->mv_bits;
1789
    d->i_tex_bits= s->i_tex_bits;
1790
    d->p_tex_bits= s->p_tex_bits;
1791
    d->i_count= s->i_count;
1792
    d->f_count= s->f_count;
1793
    d->b_count= s->b_count;
1794
    d->skip_count= s->skip_count;
1795
    d->misc_bits= s->misc_bits;
1796
    d->last_bits= 0;
1797

    
1798
    d->mb_skipped= 0;
1799
    d->qscale= s->qscale;
1800
    d->dquant= s->dquant;
1801

    
1802
    d->esc3_level_length= s->esc3_level_length;
1803
}
1804

    
1805
static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1806
    int i;
1807

    
1808
    memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
1809
    memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1810

    
1811
    /* mpeg1 */
1812
    d->mb_skip_run= s->mb_skip_run;
1813
    for(i=0; i<3; i++)
1814
        d->last_dc[i]= s->last_dc[i];
1815

    
1816
    /* statistics */
1817
    d->mv_bits= s->mv_bits;
1818
    d->i_tex_bits= s->i_tex_bits;
1819
    d->p_tex_bits= s->p_tex_bits;
1820
    d->i_count= s->i_count;
1821
    d->f_count= s->f_count;
1822
    d->b_count= s->b_count;
1823
    d->skip_count= s->skip_count;
1824
    d->misc_bits= s->misc_bits;
1825

    
1826
    d->mb_intra= s->mb_intra;
1827
    d->mb_skipped= s->mb_skipped;
1828
    d->mv_type= s->mv_type;
1829
    d->mv_dir= s->mv_dir;
1830
    d->pb= s->pb;
1831
    if(s->data_partitioning){
1832
        d->pb2= s->pb2;
1833
        d->tex_pb= s->tex_pb;
1834
    }
1835
    d->block= s->block;
1836
    for(i=0; i<8; i++)
1837
        d->block_last_index[i]= s->block_last_index[i];
1838
    d->interlaced_dct= s->interlaced_dct;
1839
    d->qscale= s->qscale;
1840

    
1841
    d->esc3_level_length= s->esc3_level_length;
1842
}
1843

    
1844
static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type,
1845
                           PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
1846
                           int *dmin, int *next_block, int motion_x, int motion_y)
1847
{
1848
    int score;
1849
    uint8_t *dest_backup[3];
1850

    
1851
    copy_context_before_encode(s, backup, type);
1852

    
1853
    s->block= s->blocks[*next_block];
1854
    s->pb= pb[*next_block];
1855
    if(s->data_partitioning){
1856
        s->pb2   = pb2   [*next_block];
1857
        s->tex_pb= tex_pb[*next_block];
1858
    }
1859

    
1860
    if(*next_block){
1861
        memcpy(dest_backup, s->dest, sizeof(s->dest));
1862
        s->dest[0] = s->rd_scratchpad;
1863
        s->dest[1] = s->rd_scratchpad + 16*s->linesize;
1864
        s->dest[2] = s->rd_scratchpad + 16*s->linesize + 8;
1865
        assert(s->linesize >= 32); //FIXME
1866
    }
1867

    
1868
    encode_mb(s, motion_x, motion_y);
1869

    
1870
    score= put_bits_count(&s->pb);
1871
    if(s->data_partitioning){
1872
        score+= put_bits_count(&s->pb2);
1873
        score+= put_bits_count(&s->tex_pb);
1874
    }
1875

    
1876
    if(s->avctx->mb_decision == FF_MB_DECISION_RD){
1877
        MPV_decode_mb(s, s->block);
1878

    
1879
        score *= s->lambda2;
1880
        score += sse_mb(s) << FF_LAMBDA_SHIFT;
1881
    }
1882

    
1883
    if(*next_block){
1884
        memcpy(s->dest, dest_backup, sizeof(s->dest));
1885
    }
1886

    
1887
    if(score<*dmin){
1888
        *dmin= score;
1889
        *next_block^=1;
1890

    
1891
        copy_context_after_encode(best, s, type);
1892
    }
1893
}
1894

    
1895
static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){
1896
    uint32_t *sq = ff_squareTbl + 256;
1897
    int acc=0;
1898
    int x,y;
1899

    
1900
    if(w==16 && h==16)
1901
        return s->dsp.sse[0](NULL, src1, src2, stride, 16);
1902
    else if(w==8 && h==8)
1903
        return s->dsp.sse[1](NULL, src1, src2, stride, 8);
1904

    
1905
    for(y=0; y<h; y++){
1906
        for(x=0; x<w; x++){
1907
            acc+= sq[src1[x + y*stride] - src2[x + y*stride]];
1908
        }
1909
    }
1910

    
1911
    assert(acc>=0);
1912

    
1913
    return acc;
1914
}
1915

    
1916
static int sse_mb(MpegEncContext *s){
1917
    int w= 16;
1918
    int h= 16;
1919

    
1920
    if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
1921
    if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
1922

    
1923
    if(w==16 && h==16)
1924
      if(s->avctx->mb_cmp == FF_CMP_NSSE){
1925
        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)
1926
               +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)
1927
               +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);
1928
      }else{
1929
        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)
1930
               +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)
1931
               +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);
1932
      }
1933
    else
1934
        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)
1935
               +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)
1936
               +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);
1937
}
1938

    
1939
static int pre_estimate_motion_thread(AVCodecContext *c, void *arg){
1940
    MpegEncContext *s= *(void**)arg;
1941

    
1942

    
1943
    s->me.pre_pass=1;
1944
    s->me.dia_size= s->avctx->pre_dia_size;
1945
    s->first_slice_line=1;
1946
    for(s->mb_y= s->end_mb_y-1; s->mb_y >= s->start_mb_y; s->mb_y--) {
1947
        for(s->mb_x=s->mb_width-1; s->mb_x >=0 ;s->mb_x--) {
1948
            ff_pre_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1949
        }
1950
        s->first_slice_line=0;
1951
    }
1952

    
1953
    s->me.pre_pass=0;
1954

    
1955
    return 0;
1956
}
1957

    
1958
static int estimate_motion_thread(AVCodecContext *c, void *arg){
1959
    MpegEncContext *s= *(void**)arg;
1960

    
1961
    ff_check_alignment();
1962

    
1963
    s->me.dia_size= s->avctx->dia_size;
1964
    s->first_slice_line=1;
1965
    for(s->mb_y= s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
1966
        s->mb_x=0; //for block init below
1967
        ff_init_block_index(s);
1968
        for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {
1969
            s->block_index[0]+=2;
1970
            s->block_index[1]+=2;
1971
            s->block_index[2]+=2;
1972
            s->block_index[3]+=2;
1973

    
1974
            /* compute motion vector & mb_type and store in context */
1975
            if(s->pict_type==FF_B_TYPE)
1976
                ff_estimate_b_frame_motion(s, s->mb_x, s->mb_y);
1977
            else
1978
                ff_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1979
        }
1980
        s->first_slice_line=0;
1981
    }
1982
    return 0;
1983
}
1984

    
1985
static int mb_var_thread(AVCodecContext *c, void *arg){
1986
    MpegEncContext *s= *(void**)arg;
1987
    int mb_x, mb_y;
1988

    
1989
    ff_check_alignment();
1990

    
1991
    for(mb_y=s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
1992
        for(mb_x=0; mb_x < s->mb_width; mb_x++) {
1993
            int xx = mb_x * 16;
1994
            int yy = mb_y * 16;
1995
            uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
1996
            int varc;
1997
            int sum = s->dsp.pix_sum(pix, s->linesize);
1998

    
1999
            varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
2000

    
2001
            s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
2002
            s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
2003
            s->me.mb_var_sum_temp    += varc;
2004
        }
2005
    }
2006
    return 0;
2007
}
2008

    
2009
static void write_slice_end(MpegEncContext *s){
2010
    if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4){
2011
        if(s->partitioned_frame){
2012
            ff_mpeg4_merge_partitions(s);
2013
        }
2014

    
2015
        ff_mpeg4_stuffing(&s->pb);
2016
    }else if(CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG){
2017
        ff_mjpeg_encode_stuffing(&s->pb);
2018
    }
2019

    
2020
    align_put_bits(&s->pb);
2021
    flush_put_bits(&s->pb);
2022

    
2023
    if((s->flags&CODEC_FLAG_PASS1) && !s->partitioned_frame)
2024
        s->misc_bits+= get_bits_diff(s);
2025
}
2026

    
2027
static int encode_thread(AVCodecContext *c, void *arg){
2028
    MpegEncContext *s= *(void**)arg;
2029
    int mb_x, mb_y, pdif = 0;
2030
    int chr_h= 16>>s->chroma_y_shift;
2031
    int i, j;
2032
    MpegEncContext best_s, backup_s;
2033
    uint8_t bit_buf[2][MAX_MB_BYTES];
2034
    uint8_t bit_buf2[2][MAX_MB_BYTES];
2035
    uint8_t bit_buf_tex[2][MAX_MB_BYTES];
2036
    PutBitContext pb[2], pb2[2], tex_pb[2];
2037
//printf("%d->%d\n", s->resync_mb_y, s->end_mb_y);
2038

    
2039
    ff_check_alignment();
2040

    
2041
    for(i=0; i<2; i++){
2042
        init_put_bits(&pb    [i], bit_buf    [i], MAX_MB_BYTES);
2043
        init_put_bits(&pb2   [i], bit_buf2   [i], MAX_MB_BYTES);
2044
        init_put_bits(&tex_pb[i], bit_buf_tex[i], MAX_MB_BYTES);
2045
    }
2046

    
2047
    s->last_bits= put_bits_count(&s->pb);
2048
    s->mv_bits=0;
2049
    s->misc_bits=0;
2050
    s->i_tex_bits=0;
2051
    s->p_tex_bits=0;
2052
    s->i_count=0;
2053
    s->f_count=0;
2054
    s->b_count=0;
2055
    s->skip_count=0;
2056

    
2057
    for(i=0; i<3; i++){
2058
        /* init last dc values */
2059
        /* note: quant matrix value (8) is implied here */
2060
        s->last_dc[i] = 128 << s->intra_dc_precision;
2061

    
2062
        s->current_picture.error[i] = 0;
2063
    }
2064
    s->mb_skip_run = 0;
2065
    memset(s->last_mv, 0, sizeof(s->last_mv));
2066

    
2067
    s->last_mv_dir = 0;
2068

    
2069
    switch(s->codec_id){
2070
    case CODEC_ID_H263:
2071
    case CODEC_ID_H263P:
2072
    case CODEC_ID_FLV1:
2073
        if (CONFIG_H263_ENCODER)
2074
            s->gob_index = ff_h263_get_gob_height(s);
2075
        break;
2076
    case CODEC_ID_MPEG4:
2077
        if(CONFIG_MPEG4_ENCODER && s->partitioned_frame)
2078
            ff_mpeg4_init_partitions(s);
2079
        break;
2080
    }
2081

    
2082
    s->resync_mb_x=0;
2083
    s->resync_mb_y=0;
2084
    s->first_slice_line = 1;
2085
    s->ptr_lastgob = s->pb.buf;
2086
    for(mb_y= s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2087
//    printf("row %d at %X\n", s->mb_y, (int)s);
2088
        s->mb_x=0;
2089
        s->mb_y= mb_y;
2090

    
2091
        ff_set_qscale(s, s->qscale);
2092
        ff_init_block_index(s);
2093

    
2094
        for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2095
            int xy= mb_y*s->mb_stride + mb_x; // removed const, H261 needs to adjust this
2096
            int mb_type= s->mb_type[xy];
2097
//            int d;
2098
            int dmin= INT_MAX;
2099
            int dir;
2100

    
2101
            if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < MAX_MB_BYTES){
2102
                av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2103
                return -1;
2104
            }
2105
            if(s->data_partitioning){
2106
                if(   s->pb2   .buf_end - s->pb2   .buf - (put_bits_count(&s->    pb2)>>3) < MAX_MB_BYTES
2107
                   || s->tex_pb.buf_end - s->tex_pb.buf - (put_bits_count(&s->tex_pb )>>3) < MAX_MB_BYTES){
2108
                    av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2109
                    return -1;
2110
                }
2111
            }
2112

    
2113
            s->mb_x = mb_x;
2114
            s->mb_y = mb_y;  // moved into loop, can get changed by H.261
2115
            ff_update_block_index(s);
2116

    
2117
            if(CONFIG_H261_ENCODER && s->codec_id == CODEC_ID_H261){
2118
                ff_h261_reorder_mb_index(s);
2119
                xy= s->mb_y*s->mb_stride + s->mb_x;
2120
                mb_type= s->mb_type[xy];
2121
            }
2122

    
2123
            /* write gob / video packet header  */
2124
            if(s->rtp_mode){
2125
                int current_packet_size, is_gob_start;
2126

    
2127
                current_packet_size= ((put_bits_count(&s->pb)+7)>>3) - (s->ptr_lastgob - s->pb.buf);
2128

    
2129
                is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0;
2130

    
2131
                if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1;
2132

    
2133
                switch(s->codec_id){
2134
                case CODEC_ID_H263:
2135
                case CODEC_ID_H263P:
2136
                    if(!s->h263_slice_structured)
2137
                        if(s->mb_x || s->mb_y%s->gob_index) is_gob_start=0;
2138
                    break;
2139
                case CODEC_ID_MPEG2VIDEO:
2140
                    if(s->mb_x==0 && s->mb_y!=0) is_gob_start=1;
2141
                case CODEC_ID_MPEG1VIDEO:
2142
                    if(s->mb_skip_run) is_gob_start=0;
2143
                    break;
2144
                }
2145

    
2146
                if(is_gob_start){
2147
                    if(s->start_mb_y != mb_y || mb_x!=0){
2148
                        write_slice_end(s);
2149

    
2150
                        if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){
2151
                            ff_mpeg4_init_partitions(s);
2152
                        }
2153
                    }
2154

    
2155
                    assert((put_bits_count(&s->pb)&7) == 0);
2156
                    current_packet_size= put_bits_ptr(&s->pb) - s->ptr_lastgob;
2157

    
2158
                    if(s->avctx->error_rate && s->resync_mb_x + s->resync_mb_y > 0){
2159
                        int r= put_bits_count(&s->pb)/8 + s->picture_number + 16 + s->mb_x + s->mb_y;
2160
                        int d= 100 / s->avctx->error_rate;
2161
                        if(r % d == 0){
2162
                            current_packet_size=0;
2163
#ifndef ALT_BITSTREAM_WRITER
2164
                            s->pb.buf_ptr= s->ptr_lastgob;
2165
#endif
2166
                            assert(put_bits_ptr(&s->pb) == s->ptr_lastgob);
2167
                        }
2168
                    }
2169

    
2170
                    if (s->avctx->rtp_callback){
2171
                        int number_mb = (mb_y - s->resync_mb_y)*s->mb_width + mb_x - s->resync_mb_x;
2172
                        s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, current_packet_size, number_mb);
2173
                    }
2174

    
2175
                    switch(s->codec_id){
2176
                    case CODEC_ID_MPEG4:
2177
                        if (CONFIG_MPEG4_ENCODER) {
2178
                            ff_mpeg4_encode_video_packet_header(s);
2179
                            ff_mpeg4_clean_buffers(s);
2180
                        }
2181
                    break;
2182
                    case CODEC_ID_MPEG1VIDEO:
2183
                    case CODEC_ID_MPEG2VIDEO:
2184
                        if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) {
2185
                            ff_mpeg1_encode_slice_header(s);
2186
                            ff_mpeg1_clean_buffers(s);
2187
                        }
2188
                    break;
2189
                    case CODEC_ID_H263:
2190
                    case CODEC_ID_H263P:
2191
                        if (CONFIG_H263_ENCODER)
2192
                            h263_encode_gob_header(s, mb_y);
2193
                    break;
2194
                    }
2195

    
2196
                    if(s->flags&CODEC_FLAG_PASS1){
2197
                        int bits= put_bits_count(&s->pb);
2198
                        s->misc_bits+= bits - s->last_bits;
2199
                        s->last_bits= bits;
2200
                    }
2201

    
2202
                    s->ptr_lastgob += current_packet_size;
2203
                    s->first_slice_line=1;
2204
                    s->resync_mb_x=mb_x;
2205
                    s->resync_mb_y=mb_y;
2206
                }
2207
            }
2208

    
2209
            if(  (s->resync_mb_x   == s->mb_x)
2210
               && s->resync_mb_y+1 == s->mb_y){
2211
                s->first_slice_line=0;
2212
            }
2213

    
2214
            s->mb_skipped=0;
2215
            s->dquant=0; //only for QP_RD
2216

    
2217
            if(mb_type & (mb_type-1) || (s->flags & CODEC_FLAG_QP_RD)){ // more than 1 MB type possible or CODEC_FLAG_QP_RD
2218
                int next_block=0;
2219
                int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
2220

    
2221
                copy_context_before_encode(&backup_s, s, -1);
2222
                backup_s.pb= s->pb;
2223
                best_s.data_partitioning= s->data_partitioning;
2224
                best_s.partitioned_frame= s->partitioned_frame;
2225
                if(s->data_partitioning){
2226
                    backup_s.pb2= s->pb2;
2227
                    backup_s.tex_pb= s->tex_pb;
2228
                }
2229

    
2230
                if(mb_type&CANDIDATE_MB_TYPE_INTER){
2231
                    s->mv_dir = MV_DIR_FORWARD;
2232
                    s->mv_type = MV_TYPE_16X16;
2233
                    s->mb_intra= 0;
2234
                    s->mv[0][0][0] = s->p_mv_table[xy][0];
2235
                    s->mv[0][0][1] = s->p_mv_table[xy][1];
2236
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER, pb, pb2, tex_pb,
2237
                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2238
                }
2239
                if(mb_type&CANDIDATE_MB_TYPE_INTER_I){
2240
                    s->mv_dir = MV_DIR_FORWARD;
2241
                    s->mv_type = MV_TYPE_FIELD;
2242
                    s->mb_intra= 0;
2243
                    for(i=0; i<2; i++){
2244
                        j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2245
                        s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2246
                        s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2247
                    }
2248
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER_I, pb, pb2, tex_pb,
2249
                                 &dmin, &next_block, 0, 0);
2250
                }
2251
                if(mb_type&CANDIDATE_MB_TYPE_SKIPPED){
2252
                    s->mv_dir = MV_DIR_FORWARD;
2253
                    s->mv_type = MV_TYPE_16X16;
2254
                    s->mb_intra= 0;
2255
                    s->mv[0][0][0] = 0;
2256
                    s->mv[0][0][1] = 0;
2257
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_SKIPPED, pb, pb2, tex_pb,
2258
                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2259
                }
2260
                if(mb_type&CANDIDATE_MB_TYPE_INTER4V){
2261
                    s->mv_dir = MV_DIR_FORWARD;
2262
                    s->mv_type = MV_TYPE_8X8;
2263
                    s->mb_intra= 0;
2264
                    for(i=0; i<4; i++){
2265
                        s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2266
                        s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2267
                    }
2268
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER4V, pb, pb2, tex_pb,
2269
                                 &dmin, &next_block, 0, 0);
2270
                }
2271
                if(mb_type&CANDIDATE_MB_TYPE_FORWARD){
2272
                    s->mv_dir = MV_DIR_FORWARD;
2273
                    s->mv_type = MV_TYPE_16X16;
2274
                    s->mb_intra= 0;
2275
                    s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2276
                    s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2277
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD, pb, pb2, tex_pb,
2278
                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2279
                }
2280
                if(mb_type&CANDIDATE_MB_TYPE_BACKWARD){
2281
                    s->mv_dir = MV_DIR_BACKWARD;
2282
                    s->mv_type = MV_TYPE_16X16;
2283
                    s->mb_intra= 0;
2284
                    s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2285
                    s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2286
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD, pb, pb2, tex_pb,
2287
                                 &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
2288
                }
2289
                if(mb_type&CANDIDATE_MB_TYPE_BIDIR){
2290
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2291
                    s->mv_type = MV_TYPE_16X16;
2292
                    s->mb_intra= 0;
2293
                    s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2294
                    s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2295
                    s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2296
                    s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2297
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb,
2298
                                 &dmin, &next_block, 0, 0);
2299
                }
2300
                if(mb_type&CANDIDATE_MB_TYPE_FORWARD_I){
2301
                    s->mv_dir = MV_DIR_FORWARD;
2302
                    s->mv_type = MV_TYPE_FIELD;
2303
                    s->mb_intra= 0;
2304
                    for(i=0; i<2; i++){
2305
                        j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2306
                        s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2307
                        s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2308
                    }
2309
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD_I, pb, pb2, tex_pb,
2310
                                 &dmin, &next_block, 0, 0);
2311
                }
2312
                if(mb_type&CANDIDATE_MB_TYPE_BACKWARD_I){
2313
                    s->mv_dir = MV_DIR_BACKWARD;
2314
                    s->mv_type = MV_TYPE_FIELD;
2315
                    s->mb_intra= 0;
2316
                    for(i=0; i<2; i++){
2317
                        j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2318
                        s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2319
                        s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2320
                    }
2321
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD_I, pb, pb2, tex_pb,
2322
                                 &dmin, &next_block, 0, 0);
2323
                }
2324
                if(mb_type&CANDIDATE_MB_TYPE_BIDIR_I){
2325
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2326
                    s->mv_type = MV_TYPE_FIELD;
2327
                    s->mb_intra= 0;
2328
                    for(dir=0; dir<2; dir++){
2329
                        for(i=0; i<2; i++){
2330
                            j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2331
                            s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2332
                            s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2333
                        }
2334
                    }
2335
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR_I, pb, pb2, tex_pb,
2336
                                 &dmin, &next_block, 0, 0);
2337
                }
2338
                if(mb_type&CANDIDATE_MB_TYPE_INTRA){
2339
                    s->mv_dir = 0;
2340
                    s->mv_type = MV_TYPE_16X16;
2341
                    s->mb_intra= 1;
2342
                    s->mv[0][0][0] = 0;
2343
                    s->mv[0][0][1] = 0;
2344
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTRA, pb, pb2, tex_pb,
2345
                                 &dmin, &next_block, 0, 0);
2346
                    if(s->h263_pred || s->h263_aic){
2347
                        if(best_s.mb_intra)
2348
                            s->mbintra_table[mb_x + mb_y*s->mb_stride]=1;
2349
                        else
2350
                            ff_clean_intra_table_entries(s); //old mode?
2351
                    }
2352
                }
2353

    
2354
                if((s->flags & CODEC_FLAG_QP_RD) && dmin < INT_MAX){
2355
                    if(best_s.mv_type==MV_TYPE_16X16){ //FIXME move 4mv after QPRD
2356
                        const int last_qp= backup_s.qscale;
2357
                        int qpi, qp, dc[6];
2358
                        DCTELEM ac[6][16];
2359
                        const int mvdir= (best_s.mv_dir&MV_DIR_BACKWARD) ? 1 : 0;
2360
                        static const int dquant_tab[4]={-1,1,-2,2};
2361

    
2362
                        assert(backup_s.dquant == 0);
2363

    
2364
                        //FIXME intra
2365
                        s->mv_dir= best_s.mv_dir;
2366
                        s->mv_type = MV_TYPE_16X16;
2367
                        s->mb_intra= best_s.mb_intra;
2368
                        s->mv[0][0][0] = best_s.mv[0][0][0];
2369
                        s->mv[0][0][1] = best_s.mv[0][0][1];
2370
                        s->mv[1][0][0] = best_s.mv[1][0][0];
2371
                        s->mv[1][0][1] = best_s.mv[1][0][1];
2372

    
2373
                        qpi = s->pict_type == FF_B_TYPE ? 2 : 0;
2374
                        for(; qpi<4; qpi++){
2375
                            int dquant= dquant_tab[qpi];
2376
                            qp= last_qp + dquant;
2377
                            if(qp < s->avctx->qmin || qp > s->avctx->qmax)
2378
                                continue;
2379
                            backup_s.dquant= dquant;
2380
                            if(s->mb_intra && s->dc_val[0]){
2381
                                for(i=0; i<6; i++){
2382
                                    dc[i]= s->dc_val[0][ s->block_index[i] ];
2383
                                    memcpy(ac[i], s->ac_val[0][s->block_index[i]], sizeof(DCTELEM)*16);
2384
                                }
2385
                            }
2386

    
2387
                            encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2388
                                         &dmin, &next_block, s->mv[mvdir][0][0], s->mv[mvdir][0][1]);
2389
                            if(best_s.qscale != qp){
2390
                                if(s->mb_intra && s->dc_val[0]){
2391
                                    for(i=0; i<6; i++){
2392
                                        s->dc_val[0][ s->block_index[i] ]= dc[i];
2393
                                        memcpy(s->ac_val[0][s->block_index[i]], ac[i], sizeof(DCTELEM)*16);
2394
                                    }
2395
                                }
2396
                            }
2397
                        }
2398
                    }
2399
                }
2400
                if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT){
2401
                    int mx= s->b_direct_mv_table[xy][0];
2402
                    int my= s->b_direct_mv_table[xy][1];
2403

    
2404
                    backup_s.dquant = 0;
2405
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2406
                    s->mb_intra= 0;
2407
                    ff_mpeg4_set_direct_mv(s, mx, my);
2408
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2409
                                 &dmin, &next_block, mx, my);
2410
                }
2411
                if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT0){
2412
                    backup_s.dquant = 0;
2413
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2414
                    s->mb_intra= 0;
2415
                    ff_mpeg4_set_direct_mv(s, 0, 0);
2416
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2417
                                 &dmin, &next_block, 0, 0);
2418
                }
2419
                if(!best_s.mb_intra && s->flags2&CODEC_FLAG2_SKIP_RD){
2420
                    int coded=0;
2421
                    for(i=0; i<6; i++)
2422
                        coded |= s->block_last_index[i];
2423
                    if(coded){
2424
                        int mx,my;
2425
                        memcpy(s->mv, best_s.mv, sizeof(s->mv));
2426
                        if(CONFIG_MPEG4_ENCODER && best_s.mv_dir & MV_DIRECT){
2427
                            mx=my=0; //FIXME find the one we actually used
2428
                            ff_mpeg4_set_direct_mv(s, mx, my);
2429
                        }else if(best_s.mv_dir&MV_DIR_BACKWARD){
2430
                            mx= s->mv[1][0][0];
2431
                            my= s->mv[1][0][1];
2432
                        }else{
2433
                            mx= s->mv[0][0][0];
2434
                            my= s->mv[0][0][1];
2435
                        }
2436

    
2437
                        s->mv_dir= best_s.mv_dir;
2438
                        s->mv_type = best_s.mv_type;
2439
                        s->mb_intra= 0;
2440
/*                        s->mv[0][0][0] = best_s.mv[0][0][0];
2441
                        s->mv[0][0][1] = best_s.mv[0][0][1];
2442
                        s->mv[1][0][0] = best_s.mv[1][0][0];
2443
                        s->mv[1][0][1] = best_s.mv[1][0][1];*/
2444
                        backup_s.dquant= 0;
2445
                        s->skipdct=1;
2446
                        encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2447
                                        &dmin, &next_block, mx, my);
2448
                        s->skipdct=0;
2449
                    }
2450
                }
2451

    
2452
                s->current_picture.qscale_table[xy]= best_s.qscale;
2453

    
2454
                copy_context_after_encode(s, &best_s, -1);
2455

    
2456
                pb_bits_count= put_bits_count(&s->pb);
2457
                flush_put_bits(&s->pb);
2458
                ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
2459
                s->pb= backup_s.pb;
2460

    
2461
                if(s->data_partitioning){
2462
                    pb2_bits_count= put_bits_count(&s->pb2);
2463
                    flush_put_bits(&s->pb2);
2464
                    ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
2465
                    s->pb2= backup_s.pb2;
2466

    
2467
                    tex_pb_bits_count= put_bits_count(&s->tex_pb);
2468
                    flush_put_bits(&s->tex_pb);
2469
                    ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
2470
                    s->tex_pb= backup_s.tex_pb;
2471
                }
2472
                s->last_bits= put_bits_count(&s->pb);
2473

    
2474
                if (CONFIG_H263_ENCODER &&
2475
                    s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
2476
                    ff_h263_update_motion_val(s);
2477

    
2478
                if(next_block==0){ //FIXME 16 vs linesize16
2479
                    s->dsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad                     , s->linesize  ,16);
2480
                    s->dsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize    , s->uvlinesize, 8);
2481
                    s->dsp.put_pixels_tab[1][0](s->dest[2], s->rd_scratchpad + 16*s->linesize + 8, s->uvlinesize, 8);
2482
                }
2483

    
2484
                if(s->avctx->mb_decision == FF_MB_DECISION_BITS)
2485
                    MPV_decode_mb(s, s->block);
2486
            } else {
2487
                int motion_x = 0, motion_y = 0;
2488
                s->mv_type=MV_TYPE_16X16;
2489
                // only one MB-Type possible
2490

    
2491
                switch(mb_type){
2492
                case CANDIDATE_MB_TYPE_INTRA:
2493
                    s->mv_dir = 0;
2494
                    s->mb_intra= 1;
2495
                    motion_x= s->mv[0][0][0] = 0;
2496
                    motion_y= s->mv[0][0][1] = 0;
2497
                    break;
2498
                case CANDIDATE_MB_TYPE_INTER:
2499
                    s->mv_dir = MV_DIR_FORWARD;
2500
                    s->mb_intra= 0;
2501
                    motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
2502
                    motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
2503
                    break;
2504
                case CANDIDATE_MB_TYPE_INTER_I:
2505
                    s->mv_dir = MV_DIR_FORWARD;
2506
                    s->mv_type = MV_TYPE_FIELD;
2507
                    s->mb_intra= 0;
2508
                    for(i=0; i<2; i++){
2509
                        j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2510
                        s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2511
                        s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2512
                    }
2513
                    break;
2514
                case CANDIDATE_MB_TYPE_INTER4V:
2515
                    s->mv_dir = MV_DIR_FORWARD;
2516
                    s->mv_type = MV_TYPE_8X8;
2517
                    s->mb_intra= 0;
2518
                    for(i=0; i<4; i++){
2519
                        s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2520
                        s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2521
                    }
2522
                    break;
2523
                case CANDIDATE_MB_TYPE_DIRECT:
2524
                    if (CONFIG_MPEG4_ENCODER) {
2525
                        s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2526
                        s->mb_intra= 0;
2527
                        motion_x=s->b_direct_mv_table[xy][0];
2528
                        motion_y=s->b_direct_mv_table[xy][1];
2529
                        ff_mpeg4_set_direct_mv(s, motion_x, motion_y);
2530
                    }
2531
                    break;
2532
                case CANDIDATE_MB_TYPE_DIRECT0:
2533
                    if (CONFIG_MPEG4_ENCODER) {
2534
                        s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2535
                        s->mb_intra= 0;
2536
                        ff_mpeg4_set_direct_mv(s, 0, 0);
2537
                    }
2538
                    break;
2539
                case CANDIDATE_MB_TYPE_BIDIR:
2540
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2541
                    s->mb_intra= 0;
2542
                    s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2543
                    s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2544
                    s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2545
                    s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2546
                    break;
2547
                case CANDIDATE_MB_TYPE_BACKWARD:
2548
                    s->mv_dir = MV_DIR_BACKWARD;
2549
                    s->mb_intra= 0;
2550
                    motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2551
                    motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2552
                    break;
2553
                case CANDIDATE_MB_TYPE_FORWARD:
2554
                    s->mv_dir = MV_DIR_FORWARD;
2555
                    s->mb_intra= 0;
2556
                    motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2557
                    motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2558
//                    printf(" %d %d ", motion_x, motion_y);
2559
                    break;
2560
                case CANDIDATE_MB_TYPE_FORWARD_I:
2561
                    s->mv_dir = MV_DIR_FORWARD;
2562
                    s->mv_type = MV_TYPE_FIELD;
2563
                    s->mb_intra= 0;
2564
                    for(i=0; i<2; i++){
2565
                        j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2566
                        s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2567
                        s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2568
                    }
2569
                    break;
2570
                case CANDIDATE_MB_TYPE_BACKWARD_I:
2571
                    s->mv_dir = MV_DIR_BACKWARD;
2572
                    s->mv_type = MV_TYPE_FIELD;
2573
                    s->mb_intra= 0;
2574
                    for(i=0; i<2; i++){
2575
                        j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2576
                        s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2577
                        s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2578
                    }
2579
                    break;
2580
                case CANDIDATE_MB_TYPE_BIDIR_I:
2581
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2582
                    s->mv_type = MV_TYPE_FIELD;
2583
                    s->mb_intra= 0;
2584
                    for(dir=0; dir<2; dir++){
2585
                        for(i=0; i<2; i++){
2586
                            j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2587
                            s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2588
                            s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2589
                        }
2590
                    }
2591
                    break;
2592
                default:
2593
                    av_log(s->avctx, AV_LOG_ERROR, "illegal MB type\n");
2594
                }
2595

    
2596
                encode_mb(s, motion_x, motion_y);
2597

    
2598
                // RAL: Update last macroblock type
2599
                s->last_mv_dir = s->mv_dir;
2600

    
2601
                if (CONFIG_H263_ENCODER &&
2602
                    s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
2603
                    ff_h263_update_motion_val(s);
2604

    
2605
                MPV_decode_mb(s, s->block);
2606
            }
2607

    
2608
            /* clean the MV table in IPS frames for direct mode in B frames */
2609
            if(s->mb_intra /* && I,P,S_TYPE */){
2610
                s->p_mv_table[xy][0]=0;
2611
                s->p_mv_table[xy][1]=0;
2612
            }
2613

    
2614
            if(s->flags&CODEC_FLAG_PSNR){
2615
                int w= 16;
2616
                int h= 16;
2617

    
2618
                if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
2619
                if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
2620

    
2621
                s->current_picture.error[0] += sse(
2622
                    s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16,
2623
                    s->dest[0], w, h, s->linesize);
2624
                s->current_picture.error[1] += sse(
2625
                    s, s->new_picture.data[1] + s->mb_x*8  + s->mb_y*s->uvlinesize*chr_h,
2626
                    s->dest[1], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
2627
                s->current_picture.error[2] += sse(
2628
                    s, s->new_picture.data[2] + s->mb_x*8  + s->mb_y*s->uvlinesize*chr_h,
2629
                    s->dest[2], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
2630
            }
2631
            if(s->loop_filter){
2632
                if(CONFIG_H263_ENCODER && s->out_format == FMT_H263)
2633
                    ff_h263_loop_filter(s);
2634
            }
2635
//printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, put_bits_count(&s->pb));
2636
        }
2637
    }
2638

    
2639
    //not beautiful here but we must write it before flushing so it has to be here
2640
    if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == FF_I_TYPE)
2641
        msmpeg4_encode_ext_header(s);
2642

    
2643
    write_slice_end(s);
2644

    
2645
    /* Send the last GOB if RTP */
2646
    if (s->avctx->rtp_callback) {
2647
        int number_mb = (mb_y - s->resync_mb_y)*s->mb_width - s->resync_mb_x;
2648
        pdif = put_bits_ptr(&s->pb) - s->ptr_lastgob;
2649
        /* Call the RTP callback to send the last GOB */
2650
        emms_c();
2651
        s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, pdif, number_mb);
2652
    }
2653

    
2654
    return 0;
2655
}
2656

    
2657
#define MERGE(field) dst->field += src->field; src->field=0
2658
static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src){
2659
    MERGE(me.scene_change_score);
2660
    MERGE(me.mc_mb_var_sum_temp);
2661
    MERGE(me.mb_var_sum_temp);
2662
}
2663

    
2664
static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src){
2665
    int i;
2666

    
2667
    MERGE(dct_count[0]); //note, the other dct vars are not part of the context
2668
    MERGE(dct_count[1]);
2669
    MERGE(mv_bits);
2670
    MERGE(i_tex_bits);
2671
    MERGE(p_tex_bits);
2672
    MERGE(i_count);
2673
    MERGE(f_count);
2674
    MERGE(b_count);
2675
    MERGE(skip_count);
2676
    MERGE(misc_bits);
2677
    MERGE(error_count);
2678
    MERGE(padding_bug_score);
2679
    MERGE(current_picture.error[0]);
2680
    MERGE(current_picture.error[1]);
2681
    MERGE(current_picture.error[2]);
2682

    
2683
    if(dst->avctx->noise_reduction){
2684
        for(i=0; i<64; i++){
2685
            MERGE(dct_error_sum[0][i]);
2686
            MERGE(dct_error_sum[1][i]);
2687
        }
2688
    }
2689

    
2690
    assert(put_bits_count(&src->pb) % 8 ==0);
2691
    assert(put_bits_count(&dst->pb) % 8 ==0);
2692
    ff_copy_bits(&dst->pb, src->pb.buf, put_bits_count(&src->pb));
2693
    flush_put_bits(&dst->pb);
2694
}
2695

    
2696
static int estimate_qp(MpegEncContext *s, int dry_run){
2697
    if (s->next_lambda){
2698
        s->current_picture_ptr->quality=
2699
        s->current_picture.quality = s->next_lambda;
2700
        if(!dry_run) s->next_lambda= 0;
2701
    } else if (!s->fixed_qscale) {
2702
        s->current_picture_ptr->quality=
2703
        s->current_picture.quality = ff_rate_estimate_qscale(s, dry_run);
2704
        if (s->current_picture.quality < 0)
2705
            return -1;
2706
    }
2707

    
2708
    if(s->adaptive_quant){
2709
        switch(s->codec_id){
2710
        case CODEC_ID_MPEG4:
2711
            if (CONFIG_MPEG4_ENCODER)
2712
                ff_clean_mpeg4_qscales(s);
2713
            break;
2714
        case CODEC_ID_H263:
2715
        case CODEC_ID_H263P:
2716
        case CODEC_ID_FLV1:
2717
            if (CONFIG_H263_ENCODER)
2718
                ff_clean_h263_qscales(s);
2719
            break;
2720
        default:
2721
            ff_init_qscale_tab(s);
2722
        }
2723

    
2724
        s->lambda= s->lambda_table[0];
2725
        //FIXME broken
2726
    }else
2727
        s->lambda= s->current_picture.quality;
2728
//printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality);
2729
    update_qscale(s);
2730
    return 0;
2731
}
2732

    
2733
/* must be called before writing the header */
2734
static void set_frame_distances(MpegEncContext * s){
2735
    assert(s->current_picture_ptr->pts != AV_NOPTS_VALUE);
2736
    s->time= s->current_picture_ptr->pts*s->avctx->time_base.num;
2737

    
2738
    if(s->pict_type==FF_B_TYPE){
2739
        s->pb_time= s->pp_time - (s->last_non_b_time - s->time);
2740
        assert(s->pb_time > 0 && s->pb_time < s->pp_time);
2741
    }else{
2742
        s->pp_time= s->time - s->last_non_b_time;
2743
        s->last_non_b_time= s->time;
2744
        assert(s->picture_number==0 || s->pp_time > 0);
2745
    }
2746
}
2747

    
2748
static int encode_picture(MpegEncContext *s, int picture_number)
2749
{
2750
    int i;
2751
    int bits;
2752

    
2753
    s->picture_number = picture_number;
2754

    
2755
    /* Reset the average MB variance */
2756
    s->me.mb_var_sum_temp    =
2757
    s->me.mc_mb_var_sum_temp = 0;
2758

    
2759
    /* we need to initialize some time vars before we can encode b-frames */
2760
    // RAL: Condition added for MPEG1VIDEO
2761
    if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->h263_msmpeg4))
2762
        set_frame_distances(s);
2763
    if(CONFIG_MPEG4_ENCODER && s->codec_id == CODEC_ID_MPEG4)
2764
        ff_set_mpeg4_time(s);
2765

    
2766
    s->me.scene_change_score=0;
2767

    
2768
//    s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME rate distortion
2769

    
2770
    if(s->pict_type==FF_I_TYPE){
2771
        if(s->msmpeg4_version >= 3) s->no_rounding=1;
2772
        else                        s->no_rounding=0;
2773
    }else if(s->pict_type!=FF_B_TYPE){
2774
        if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
2775
            s->no_rounding ^= 1;
2776
    }
2777

    
2778
    if(s->flags & CODEC_FLAG_PASS2){
2779
        if (estimate_qp(s,1) < 0)
2780
            return -1;
2781
        ff_get_2pass_fcode(s);
2782
    }else if(!(s->flags & CODEC_FLAG_QSCALE)){
2783
        if(s->pict_type==FF_B_TYPE)
2784
            s->lambda= s->last_lambda_for[s->pict_type];
2785
        else
2786
            s->lambda= s->last_lambda_for[s->last_non_b_pict_type];
2787
        update_qscale(s);
2788
    }
2789

    
2790
    s->mb_intra=0; //for the rate distortion & bit compare functions
2791
    for(i=1; i<s->avctx->thread_count; i++){
2792
        ff_update_duplicate_context(s->thread_context[i], s);
2793
    }
2794

    
2795
    if(ff_init_me(s)<0)
2796
        return -1;
2797

    
2798
    /* Estimate motion for every MB */
2799
    if(s->pict_type != FF_I_TYPE){
2800
        s->lambda = (s->lambda * s->avctx->me_penalty_compensation + 128)>>8;
2801
        s->lambda2= (s->lambda2* (int64_t)s->avctx->me_penalty_compensation + 128)>>8;
2802
        if(s->pict_type != FF_B_TYPE && s->avctx->me_threshold==0){
2803
            if((s->avctx->pre_me && s->last_non_b_pict_type==FF_I_TYPE) || s->avctx->pre_me==2){
2804
                s->avctx->execute(s->avctx, pre_estimate_motion_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2805
            }
2806
        }
2807

    
2808
        s->avctx->execute(s->avctx, estimate_motion_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2809
    }else /* if(s->pict_type == FF_I_TYPE) */{
2810
        /* I-Frame */
2811
        for(i=0; i<s->mb_stride*s->mb_height; i++)
2812
            s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2813

    
2814
        if(!s->fixed_qscale){
2815
            /* finding spatial complexity for I-frame rate control */
2816
            s->avctx->execute(s->avctx, mb_var_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2817
        }
2818
    }
2819
    for(i=1; i<s->avctx->thread_count; i++){
2820
        merge_context_after_me(s, s->thread_context[i]);
2821
    }
2822
    s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum= s->me.mc_mb_var_sum_temp;
2823
    s->current_picture.   mb_var_sum= s->current_picture_ptr->   mb_var_sum= s->me.   mb_var_sum_temp;
2824
    emms_c();
2825

    
2826
    if(s->me.scene_change_score > s->avctx->scenechange_threshold && s->pict_type == FF_P_TYPE){
2827
        s->pict_type= FF_I_TYPE;
2828
        for(i=0; i<s->mb_stride*s->mb_height; i++)
2829
            s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2830
//printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum);
2831
    }
2832

    
2833
    if(!s->umvplus){
2834
        if(s->pict_type==FF_P_TYPE || s->pict_type==FF_S_TYPE) {
2835
            s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER);
2836

    
2837
            if(s->flags & CODEC_FLAG_INTERLACED_ME){
2838
                int a,b;
2839
                a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select
2840
                b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I);
2841
                s->f_code= FFMAX3(s->f_code, a, b);
2842
            }
2843

    
2844
            ff_fix_long_p_mvs(s);
2845
            ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0);
2846
            if(s->flags & CODEC_FLAG_INTERLACED_ME){
2847
                int j;
2848
                for(i=0; i<2; i++){
2849
                    for(j=0; j<2; j++)
2850
                        ff_fix_long_mvs(s, s->p_field_select_table[i], j,
2851
                                        s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0);
2852
                }
2853
            }
2854
        }
2855

    
2856
        if(s->pict_type==FF_B_TYPE){
2857
            int a, b;
2858

    
2859
            a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD);
2860
            b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2861
            s->f_code = FFMAX(a, b);
2862

    
2863
            a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD);
2864
            b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2865
            s->b_code = FFMAX(a, b);
2866

    
2867
            ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1);
2868
            ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1);
2869
            ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2870
            ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2871
            if(s->flags & CODEC_FLAG_INTERLACED_ME){
2872
                int dir, j;
2873
                for(dir=0; dir<2; dir++){
2874
                    for(i=0; i<2; i++){
2875
                        for(j=0; j<2; j++){
2876
                            int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I)
2877
                                          : (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I);
2878
                            ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j,
2879
                                            s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1);
2880
                        }
2881
                    }
2882
                }
2883
            }
2884
        }
2885
    }
2886

    
2887
    if (estimate_qp(s, 0) < 0)
2888
        return -1;
2889

    
2890
    if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==FF_I_TYPE && !(s->flags & CODEC_FLAG_QSCALE))
2891
        s->qscale= 3; //reduce clipping problems
2892

    
2893
    if (s->out_format == FMT_MJPEG) {
2894
        /* for mjpeg, we do include qscale in the matrix */
2895
        s->intra_matrix[0] = ff_mpeg1_default_intra_matrix[0];
2896
        for(i=1;i<64;i++){
2897
            int j= s->dsp.idct_permutation[i];
2898

    
2899
            s->intra_matrix[j] = av_clip_uint8((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
2900
        }
2901
        ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
2902
                       s->intra_matrix, s->intra_quant_bias, 8, 8, 1);
2903
        s->qscale= 8;
2904
    }
2905

    
2906
    //FIXME var duplication
2907
    s->current_picture_ptr->key_frame=
2908
    s->current_picture.key_frame= s->pict_type == FF_I_TYPE; //FIXME pic_ptr
2909
    s->current_picture_ptr->pict_type=
2910
    s->current_picture.pict_type= s->pict_type;
2911

    
2912
    if(s->current_picture.key_frame)
2913
        s->picture_in_gop_number=0;
2914

    
2915
    s->last_bits= put_bits_count(&s->pb);
2916
    switch(s->out_format) {
2917
    case FMT_MJPEG:
2918
        if (CONFIG_MJPEG_ENCODER)
2919
            ff_mjpeg_encode_picture_header(s);
2920
        break;
2921
    case FMT_H261:
2922
        if (CONFIG_H261_ENCODER)
2923
            ff_h261_encode_picture_header(s, picture_number);
2924
        break;
2925
    case FMT_H263:
2926
        if (CONFIG_WMV2_ENCODER && s->codec_id == CODEC_ID_WMV2)
2927
            ff_wmv2_encode_picture_header(s, picture_number);
2928
        else if (CONFIG_MSMPEG4_ENCODER && s->h263_msmpeg4)
2929
            msmpeg4_encode_picture_header(s, picture_number);
2930
        else if (CONFIG_MPEG4_ENCODER && s->h263_pred)
2931
            mpeg4_encode_picture_header(s, picture_number);
2932
        else if (CONFIG_RV10_ENCODER && s->codec_id == CODEC_ID_RV10)
2933
            rv10_encode_picture_header(s, picture_number);
2934
        else if (CONFIG_RV20_ENCODER && s->codec_id == CODEC_ID_RV20)
2935
            rv20_encode_picture_header(s, picture_number);
2936
        else if (CONFIG_FLV_ENCODER && s->codec_id == CODEC_ID_FLV1)
2937
            ff_flv_encode_picture_header(s, picture_number);
2938
        else if (CONFIG_H263_ENCODER)
2939
            h263_encode_picture_header(s, picture_number);
2940
        break;
2941
    case FMT_MPEG1:
2942
        if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
2943
            mpeg1_encode_picture_header(s, picture_number);
2944
        break;
2945
    case FMT_H264:
2946
        break;
2947
    default:
2948
        assert(0);
2949
    }
2950
    bits= put_bits_count(&s->pb);
2951
    s->header_bits= bits - s->last_bits;
2952

    
2953
    for(i=1; i<s->avctx->thread_count; i++){
2954
        update_duplicate_context_after_me(s->thread_context[i], s);
2955
    }
2956
    s->avctx->execute(s->avctx, encode_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2957
    for(i=1; i<s->avctx->thread_count; i++){
2958
        merge_context_after_encode(s, s->thread_context[i]);
2959
    }
2960
    emms_c();
2961
    return 0;
2962
}
2963

    
2964
void  denoise_dct_c(MpegEncContext *s, DCTELEM *block){
2965
    const int intra= s->mb_intra;
2966
    int i;
2967

    
2968
    s->dct_count[intra]++;
2969

    
2970
    for(i=0; i<64; i++){
2971
        int level= block[i];
2972

    
2973
        if(level){
2974
            if(level>0){
2975
                s->dct_error_sum[intra][i] += level;
2976
                level -= s->dct_offset[intra][i];
2977
                if(level<0) level=0;
2978
            }else{
2979
                s->dct_error_sum[intra][i] -= level;
2980
                level += s->dct_offset[intra][i];
2981
                if(level>0) level=0;
2982
            }
2983
            block[i]= level;
2984
        }
2985
    }
2986
}
2987

    
2988
int dct_quantize_trellis_c(MpegEncContext *s,
2989
                        DCTELEM *block, int n,
2990
                        int qscale, int *overflow){
2991
    const int *qmat;
2992
    const uint8_t *scantable= s->intra_scantable.scantable;
2993
    const uint8_t *perm_scantable= s->intra_scantable.permutated;
2994
    int max=0;
2995
    unsigned int threshold1, threshold2;
2996
    int bias=0;
2997
    int run_tab[65];
2998
    int level_tab[65];
2999
    int score_tab[65];
3000
    int survivor[65];
3001
    int survivor_count;
3002
    int last_run=0;
3003
    int last_level=0;
3004
    int last_score= 0;
3005
    int last_i;
3006
    int coeff[2][64];
3007
    int coeff_count[64];
3008
    int qmul, qadd, start_i, last_non_zero, i, dc;
3009
    const int esc_length= s->ac_esc_length;
3010
    uint8_t * length;
3011
    uint8_t * last_length;
3012
    const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6);
3013

    
3014
    s->dsp.fdct (block);
3015

    
3016
    if(s->dct_error_sum)
3017
        s->denoise_dct(s, block);
3018
    qmul= qscale*16;
3019
    qadd= ((qscale-1)|1)*8;
3020

    
3021
    if (s->mb_intra) {
3022
        int q;
3023
        if (!s->h263_aic) {
3024
            if (n < 4)
3025
                q = s->y_dc_scale;
3026
            else
3027
                q = s->c_dc_scale;
3028
            q = q << 3;
3029
        } else{
3030
            /* For AIC we skip quant/dequant of INTRADC */
3031
            q = 1 << 3;
3032
            qadd=0;
3033
        }
3034

    
3035
        /* note: block[0] is assumed to be positive */
3036
        block[0] = (block[0] + (q >> 1)) / q;
3037
        start_i = 1;
3038
        last_non_zero = 0;
3039
        qmat = s->q_intra_matrix[qscale];
3040
        if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3041
            bias= 1<<(QMAT_SHIFT-1);
3042
        length     = s->intra_ac_vlc_length;
3043
        last_length= s->intra_ac_vlc_last_length;
3044
    } else {
3045
        start_i = 0;
3046
        last_non_zero = -1;
3047
        qmat = s->q_inter_matrix[qscale];
3048
        length     = s->inter_ac_vlc_length;
3049
        last_length= s->inter_ac_vlc_last_length;
3050
    }
3051
    last_i= start_i;
3052

    
3053
    threshold1= (1<<QMAT_SHIFT) - bias - 1;
3054
    threshold2= (threshold1<<1);
3055

    
3056
    for(i=63; i>=start_i; i--) {
3057
        const int j = scantable[i];
3058
        int level = block[j] * qmat[j];
3059

    
3060
        if(((unsigned)(level+threshold1))>threshold2){
3061
            last_non_zero = i;
3062
            break;
3063
        }
3064
    }
3065

    
3066
    for(i=start_i; i<=last_non_zero; i++) {
3067
        const int j = scantable[i];
3068
        int level = block[j] * qmat[j];
3069

    
3070
//        if(   bias+level >= (1<<(QMAT_SHIFT - 3))
3071
//           || bias-level >= (1<<(QMAT_SHIFT - 3))){
3072
        if(((unsigned)(level+threshold1))>threshold2){
3073
            if(level>0){
3074
                level= (bias + level)>>QMAT_SHIFT;
3075
                coeff[0][i]= level;
3076
                coeff[1][i]= level-1;
3077
//                coeff[2][k]= level-2;
3078
            }else{
3079
                level= (bias - level)>>QMAT_SHIFT;
3080
                coeff[0][i]= -level;
3081
                coeff[1][i]= -level+1;
3082
//                coeff[2][k]= -level+2;
3083
            }
3084
            coeff_count[i]= FFMIN(level, 2);
3085
            assert(coeff_count[i]);
3086
            max |=level;
3087
        }else{
3088
            coeff[0][i]= (level>>31)|1;
3089
            coeff_count[i]= 1;
3090
        }
3091
    }
3092

    
3093
    *overflow= s->max_qcoeff < max; //overflow might have happened
3094

    
3095
    if(last_non_zero < start_i){
3096
        memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3097
        return last_non_zero;
3098
    }
3099

    
3100
    score_tab[start_i]= 0;
3101
    survivor[0]= start_i;
3102
    survivor_count= 1;
3103

    
3104
    for(i=start_i; i<=last_non_zero; i++){
3105
        int level_index, j, zero_distortion;
3106
        int dct_coeff= FFABS(block[ scantable[i] ]);
3107
        int best_score=256*256*256*120;
3108

    
3109
        if (   s->dsp.fdct == fdct_ifast
3110
#ifndef FAAN_POSTSCALE
3111
            || s->dsp.fdct == ff_faandct
3112
#endif
3113
           )
3114
            dct_coeff= (dct_coeff*ff_inv_aanscales[ scantable[i] ]) >> 12;
3115
        zero_distortion= dct_coeff*dct_coeff;
3116

    
3117
        for(level_index=0; level_index < coeff_count[i]; level_index++){
3118
            int distortion;
3119
            int level= coeff[level_index][i];
3120
            const int alevel= FFABS(level);
3121
            int unquant_coeff;
3122

    
3123
            assert(level);
3124

    
3125
            if(s->out_format == FMT_H263){
3126
                unquant_coeff= alevel*qmul + qadd;
3127
            }else{ //MPEG1
3128
                j= s->dsp.idct_permutation[ scantable[i] ]; //FIXME optimize
3129
                if(s->mb_intra){
3130
                        unquant_coeff = (int)(  alevel  * qscale * s->intra_matrix[j]) >> 3;
3131
                        unquant_coeff =   (unquant_coeff - 1) | 1;
3132
                }else{
3133
                        unquant_coeff = (((  alevel  << 1) + 1) * qscale * ((int) s->inter_matrix[j])) >> 4;
3134
                        unquant_coeff =   (unquant_coeff - 1) | 1;
3135
                }
3136
                unquant_coeff<<= 3;
3137
            }
3138

    
3139
            distortion= (unquant_coeff - dct_coeff) * (unquant_coeff - dct_coeff) - zero_distortion;
3140
            level+=64;
3141
            if((level&(~127)) == 0){
3142
                for(j=survivor_count-1; j>=0; j--){
3143
                    int run= i - survivor[j];
3144
                    int score= distortion + length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3145
                    score += score_tab[i-run];
3146

    
3147
                    if(score < best_score){
3148
                        best_score= score;
3149
                        run_tab[i+1]= run;
3150
                        level_tab[i+1]= level-64;
3151
                    }
3152
                }
3153

    
3154
                if(s->out_format == FMT_H263){
3155
                    for(j=survivor_count-1; j>=0; j--){
3156
                        int run= i - survivor[j];
3157
                        int score= distortion + last_length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3158
                        score += score_tab[i-run];
3159
                        if(score < last_score){
3160
                            last_score= score;
3161
                            last_run= run;
3162
                            last_level= level-64;
3163
                            last_i= i+1;
3164
                        }
3165
                    }
3166
                }
3167
            }else{
3168
                distortion += esc_length*lambda;
3169
                for(j=survivor_count-1; j>=0; j--){
3170
                    int run= i - survivor[j];
3171
                    int score= distortion + score_tab[i-run];
3172

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

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

    
3195
        score_tab[i+1]= best_score;
3196

    
3197
        //Note: there is a vlc code in mpeg4 which is 1 bit shorter then another one with a shorter run and the same level
3198
        if(last_non_zero <= 27){
3199
            for(; survivor_count; survivor_count--){
3200
                if(score_tab[ survivor[survivor_count-1] ] <= best_score)
3201
                    break;
3202
            }
3203
        }else{
3204
            for(; survivor_count; survivor_count--){
3205
                if(score_tab[ survivor[survivor_count-1] ] <= best_score + lambda)
3206
                    break;
3207
            }
3208
        }
3209

    
3210
        survivor[ survivor_count++ ]= i+1;
3211
    }
3212

    
3213
    if(s->out_format != FMT_H263){
3214
        last_score= 256*256*256*120;
3215
        for(i= survivor[0]; i<=last_non_zero + 1; i++){
3216
            int score= score_tab[i];
3217
            if(i) score += lambda*2; //FIXME exacter?
3218

    
3219
            if(score < last_score){
3220
                last_score= score;
3221
                last_i= i;
3222
                last_level= level_tab[i];
3223
                last_run= run_tab[i];
3224
            }
3225
        }
3226
    }
3227

    
3228
    s->coded_score[n] = last_score;
3229

    
3230
    dc= FFABS(block[0]);
3231
    last_non_zero= last_i - 1;
3232
    memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3233

    
3234
    if(last_non_zero < start_i)
3235
        return last_non_zero;
3236

    
3237
    if(last_non_zero == 0 && start_i == 0){
3238
        int best_level= 0;
3239
        int best_score= dc * dc;
3240

    
3241
        for(i=0; i<coeff_count[0]; i++){
3242
            int level= coeff[i][0];
3243
            int alevel= FFABS(level);
3244
            int unquant_coeff, score, distortion;
3245

    
3246
            if(s->out_format == FMT_H263){
3247
                    unquant_coeff= (alevel*qmul + qadd)>>3;
3248
            }else{ //MPEG1
3249
                    unquant_coeff = (((  alevel  << 1) + 1) * qscale * ((int) s->inter_matrix[0])) >> 4;
3250
                    unquant_coeff =   (unquant_coeff - 1) | 1;
3251
            }
3252
            unquant_coeff = (unquant_coeff + 4) >> 3;
3253
            unquant_coeff<<= 3 + 3;
3254

    
3255
            distortion= (unquant_coeff - dc) * (unquant_coeff - dc);
3256
            level+=64;
3257
            if((level&(~127)) == 0) score= distortion + last_length[UNI_AC_ENC_INDEX(0, level)]*lambda;
3258
            else                    score= distortion + esc_length*lambda;
3259

    
3260
            if(score < best_score){
3261
                best_score= score;
3262
                best_level= level - 64;
3263
            }
3264
        }
3265
        block[0]= best_level;
3266
        s->coded_score[n] = best_score - dc*dc;
3267
        if(best_level == 0) return -1;
3268
        else                return last_non_zero;
3269
    }
3270

    
3271
    i= last_i;
3272
    assert(last_level);
3273

    
3274
    block[ perm_scantable[last_non_zero] ]= last_level;
3275
    i -= last_run + 1;
3276

    
3277
    for(; i>start_i; i -= run_tab[i] + 1){
3278
        block[ perm_scantable[i-1] ]= level_tab[i];
3279
    }
3280

    
3281
    return last_non_zero;
3282
}
3283

    
3284
//#define REFINE_STATS 1
3285
static int16_t basis[64][64];
3286

    
3287
static void build_basis(uint8_t *perm){
3288
    int i, j, x, y;
3289
    emms_c();
3290
    for(i=0; i<8; i++){
3291
        for(j=0; j<8; j++){
3292
            for(y=0; y<8; y++){
3293
                for(x=0; x<8; x++){
3294
                    double s= 0.25*(1<<BASIS_SHIFT);
3295
                    int index= 8*i + j;
3296
                    int perm_index= perm[index];
3297
                    if(i==0) s*= sqrt(0.5);
3298
                    if(j==0) s*= sqrt(0.5);
3299
                    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)));
3300
                }
3301
            }
3302
        }
3303
    }
3304
}
3305

    
3306
static int dct_quantize_refine(MpegEncContext *s, //FIXME breaks denoise?
3307
                        DCTELEM *block, int16_t *weight, DCTELEM *orig,
3308
                        int n, int qscale){
3309
    int16_t rem[64];
3310
    DECLARE_ALIGNED_16(DCTELEM, d1[64]);
3311
    const uint8_t *scantable= s->intra_scantable.scantable;
3312
    const uint8_t *perm_scantable= s->intra_scantable.permutated;
3313
//    unsigned int threshold1, threshold2;
3314
//    int bias=0;
3315
    int run_tab[65];
3316
    int prev_run=0;
3317
    int prev_level=0;
3318
    int qmul, qadd, start_i, last_non_zero, i, dc;
3319
    uint8_t * length;
3320
    uint8_t * last_length;
3321
    int lambda;
3322
    int rle_index, run, q = 1, sum; //q is only used when s->mb_intra is true
3323
#ifdef REFINE_STATS
3324
static int count=0;
3325
static int after_last=0;
3326
static int to_zero=0;
3327
static int from_zero=0;
3328
static int raise=0;
3329
static int lower=0;
3330
static int messed_sign=0;
3331
#endif
3332

    
3333
    if(basis[0][0] == 0)
3334
        build_basis(s->dsp.idct_permutation);
3335

    
3336
    qmul= qscale*2;
3337
    qadd= (qscale-1)|1;
3338
    if (s->mb_intra) {
3339
        if (!s->h263_aic) {
3340
            if (n < 4)
3341
                q = s->y_dc_scale;
3342
            else
3343
                q = s->c_dc_scale;
3344
        } else{
3345
            /* For AIC we skip quant/dequant of INTRADC */
3346
            q = 1;
3347
            qadd=0;
3348
        }
3349
        q <<= RECON_SHIFT-3;
3350
        /* note: block[0] is assumed to be positive */
3351
        dc= block[0]*q;
3352
//        block[0] = (block[0] + (q >> 1)) / q;
3353
        start_i = 1;
3354
//        if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3355
//            bias= 1<<(QMAT_SHIFT-1);
3356
        length     = s->intra_ac_vlc_length;
3357
        last_length= s->intra_ac_vlc_last_length;
3358
    } else {
3359
        dc= 0;
3360
        start_i = 0;
3361
        length     = s->inter_ac_vlc_length;
3362
        last_length= s->inter_ac_vlc_last_length;
3363
    }
3364
    last_non_zero = s->block_last_index[n];
3365

    
3366
#ifdef REFINE_STATS
3367
{START_TIMER
3368
#endif
3369
    dc += (1<<(RECON_SHIFT-1));
3370
    for(i=0; i<64; i++){
3371
        rem[i]= dc - (orig[i]<<RECON_SHIFT); //FIXME  use orig dirrectly instead of copying to rem[]
3372
    }
3373
#ifdef REFINE_STATS
3374
STOP_TIMER("memset rem[]")}
3375
#endif
3376
    sum=0;
3377
    for(i=0; i<64; i++){
3378
        int one= 36;
3379
        int qns=4;
3380
        int w;
3381

    
3382
        w= FFABS(weight[i]) + qns*one;
3383
        w= 15 + (48*qns*one + w/2)/w; // 16 .. 63
3384

    
3385
        weight[i] = w;
3386
//        w=weight[i] = (63*qns + (w/2)) / w;
3387

    
3388
        assert(w>0);
3389
        assert(w<(1<<6));
3390
        sum += w*w;
3391
    }
3392
    lambda= sum*(uint64_t)s->lambda2 >> (FF_LAMBDA_SHIFT - 6 + 6 + 6 + 6);
3393
#ifdef REFINE_STATS
3394
{START_TIMER
3395
#endif
3396
    run=0;
3397
    rle_index=0;
3398
    for(i=start_i; i<=last_non_zero; i++){
3399
        int j= perm_scantable[i];
3400
        const int level= block[j];
3401
        int coeff;
3402

    
3403
        if(level){
3404
            if(level<0) coeff= qmul*level - qadd;
3405
            else        coeff= qmul*level + qadd;
3406
            run_tab[rle_index++]=run;
3407
            run=0;
3408

    
3409
            s->dsp.add_8x8basis(rem, basis[j], coeff);
3410
        }else{
3411
            run++;
3412
        }
3413
    }
3414
#ifdef REFINE_STATS
3415
if(last_non_zero>0){
3416
STOP_TIMER("init rem[]")
3417
}
3418
}
3419

    
3420
{START_TIMER
3421
#endif
3422
    for(;;){
3423
        int best_score=s->dsp.try_8x8basis(rem, weight, basis[0], 0);
3424
        int best_coeff=0;
3425
        int best_change=0;
3426
        int run2, best_unquant_change=0, analyze_gradient;
3427
#ifdef REFINE_STATS
3428
{START_TIMER
3429
#endif
3430
        analyze_gradient = last_non_zero > 2 || s->avctx->quantizer_noise_shaping >= 3;
3431

    
3432
        if(analyze_gradient){
3433
#ifdef REFINE_STATS
3434
{START_TIMER
3435
#endif
3436
            for(i=0; i<64; i++){
3437
                int w= weight[i];
3438

    
3439
                d1[i] = (rem[i]*w*w + (1<<(RECON_SHIFT+12-1)))>>(RECON_SHIFT+12);
3440
            }
3441
#ifdef REFINE_STATS
3442
STOP_TIMER("rem*w*w")}
3443
{START_TIMER
3444
#endif
3445
            s->dsp.fdct(d1);
3446
#ifdef REFINE_STATS
3447
STOP_TIMER("dct")}
3448
#endif
3449
        }
3450

    
3451
        if(start_i){
3452
            const int level= block[0];
3453
            int change, old_coeff;
3454

    
3455
            assert(s->mb_intra);
3456

    
3457
            old_coeff= q*level;
3458

    
3459
            for(change=-1; change<=1; change+=2){
3460
                int new_level= level + change;
3461
                int score, new_coeff;
3462

    
3463
                new_coeff= q*new_level;
3464
                if(new_coeff >= 2048 || new_coeff < 0)
3465
                    continue;
3466

    
3467
                score= s->dsp.try_8x8basis(rem, weight, basis[0], new_coeff - old_coeff);
3468
                if(score<best_score){
3469
                    best_score= score;
3470
                    best_coeff= 0;
3471
                    best_change= change;
3472
                    best_unquant_change= new_coeff - old_coeff;
3473
                }
3474
            }
3475
        }
3476

    
3477
        run=0;
3478
        rle_index=0;
3479
        run2= run_tab[rle_index++];
3480
        prev_level=0;
3481
        prev_run=0;
3482

    
3483
        for(i=start_i; i<64; i++){
3484
            int j= perm_scantable[i];
3485
            const int level= block[j];
3486
            int change, old_coeff;
3487

    
3488
            if(s->avctx->quantizer_noise_shaping < 3 && i > last_non_zero + 1)
3489
                break;
3490

    
3491
            if(level){
3492
                if(level<0) old_coeff= qmul*level - qadd;
3493
                else        old_coeff= qmul*level + qadd;
3494
                run2= run_tab[rle_index++]; //FIXME ! maybe after last
3495
            }else{
3496
                old_coeff=0;
3497
                run2--;
3498
                assert(run2>=0 || i >= last_non_zero );
3499
            }
3500

    
3501
            for(change=-1; change<=1; change+=2){
3502
                int new_level= level + change;
3503
                int score, new_coeff, unquant_change;
3504

    
3505
                score=0;
3506
                if(s->avctx->quantizer_noise_shaping < 2 && FFABS(new_level) > FFABS(level))
3507
                   continue;
3508

    
3509
                if(new_level){
3510
                    if(new_level<0) new_coeff= qmul*new_level - qadd;
3511
                    else            new_coeff= qmul*new_level + qadd;
3512
                    if(new_coeff >= 2048 || new_coeff <= -2048)
3513
                        continue;
3514
                    //FIXME check for overflow
3515

    
3516
                    if(level){
3517
                        if(level < 63 && level > -63){
3518
                            if(i < last_non_zero)
3519
                                score +=   length[UNI_AC_ENC_INDEX(run, new_level+64)]
3520
                                         - length[UNI_AC_ENC_INDEX(run, level+64)];
3521
                            else
3522
                                score +=   last_length[UNI_AC_ENC_INDEX(run, new_level+64)]
3523
                                         - last_length[UNI_AC_ENC_INDEX(run, level+64)];
3524
                        }
3525
                    }else{
3526
                        assert(FFABS(new_level)==1);
3527

    
3528
                        if(analyze_gradient){
3529
                            int g= d1[ scantable[i] ];
3530
                            if(g && (g^new_level) >= 0)
3531
                                continue;
3532
                        }
3533

    
3534
                        if(i < last_non_zero){
3535
                            int next_i= i + run2 + 1;
3536
                            int next_level= block[ perm_scantable[next_i] ] + 64;
3537

    
3538
                            if(next_level&(~127))
3539
                                next_level= 0;
3540

    
3541
                            if(next_i < last_non_zero)
3542
                                score +=   length[UNI_AC_ENC_INDEX(run, 65)]
3543
                                         + length[UNI_AC_ENC_INDEX(run2, next_level)]
3544
                                         - length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3545
                            else
3546
                                score +=  length[UNI_AC_ENC_INDEX(run, 65)]
3547
                                        + last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3548
                                        - last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3549
                        }else{
3550
                            score += last_length[UNI_AC_ENC_INDEX(run, 65)];
3551
                            if(prev_level){
3552
                                score +=  length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3553
                                        - last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3554
                            }
3555
                        }
3556
                    }
3557
                }else{
3558
                    new_coeff=0;
3559
                    assert(FFABS(level)==1);
3560

    
3561
                    if(i < last_non_zero){
3562
                        int next_i= i + run2 + 1;
3563
                        int next_level= block[ perm_scantable[next_i] ] + 64;
3564

    
3565
                        if(next_level&(~127))
3566
                            next_level= 0;
3567

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

    
3585
                score *= lambda;
3586

    
3587
                unquant_change= new_coeff - old_coeff;
3588
                assert((score < 100*lambda && score > -100*lambda) || lambda==0);
3589

    
3590
                score+= s->dsp.try_8x8basis(rem, weight, basis[j], unquant_change);
3591
                if(score<best_score){
3592
                    best_score= score;
3593
                    best_coeff= i;
3594
                    best_change= change;
3595
                    best_unquant_change= unquant_change;
3596
                }
3597
            }
3598
            if(level){
3599
                prev_level= level + 64;
3600
                if(prev_level&(~127))
3601
                    prev_level= 0;
3602
                prev_run= run;
3603
                run=0;
3604
            }else{
3605
                run++;
3606
            }
3607
        }
3608
#ifdef REFINE_STATS
3609
STOP_TIMER("iterative step")}
3610
#endif
3611

    
3612
        if(best_change){
3613
            int j= perm_scantable[ best_coeff ];
3614

    
3615
            block[j] += best_change;
3616

    
3617
            if(best_coeff > last_non_zero){
3618
                last_non_zero= best_coeff;
3619
                assert(block[j]);
3620
#ifdef REFINE_STATS
3621
after_last++;
3622
#endif
3623
            }else{
3624
#ifdef REFINE_STATS
3625
if(block[j]){
3626
    if(block[j] - best_change){
3627
        if(FFABS(block[j]) > FFABS(block[j] - best_change)){
3628
            raise++;
3629
        }else{
3630
            lower++;
3631
        }
3632
    }else{
3633
        from_zero++;
3634
    }
3635
}else{
3636
    to_zero++;
3637
}
3638
#endif
3639
                for(; last_non_zero>=start_i; last_non_zero--){
3640
                    if(block[perm_scantable[last_non_zero]])
3641
                        break;
3642
                }
3643
            }
3644
#ifdef REFINE_STATS
3645
count++;
3646
if(256*256*256*64 % count == 0){
3647
    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);
3648
}
3649
#endif
3650
            run=0;
3651
            rle_index=0;
3652
            for(i=start_i; i<=last_non_zero; i++){
3653
                int j= perm_scantable[i];
3654
                const int level= block[j];
3655

    
3656
                 if(level){
3657
                     run_tab[rle_index++]=run;
3658
                     run=0;
3659
                 }else{
3660
                     run++;
3661
                 }
3662
            }
3663

    
3664
            s->dsp.add_8x8basis(rem, basis[j], best_unquant_change);
3665
        }else{
3666
            break;
3667
        }
3668
    }
3669
#ifdef REFINE_STATS
3670
if(last_non_zero>0){
3671
STOP_TIMER("iterative search")
3672
}
3673
}
3674
#endif
3675

    
3676
    return last_non_zero;
3677
}
3678

    
3679
int dct_quantize_c(MpegEncContext *s,
3680
                        DCTELEM *block, int n,
3681
                        int qscale, int *overflow)
3682
{
3683
    int i, j, level, last_non_zero, q, start_i;
3684
    const int *qmat;
3685
    const uint8_t *scantable= s->intra_scantable.scantable;
3686
    int bias;
3687
    int max=0;
3688
    unsigned int threshold1, threshold2;
3689

    
3690
    s->dsp.fdct (block);
3691

    
3692
    if(s->dct_error_sum)
3693
        s->denoise_dct(s, block);
3694

    
3695
    if (s->mb_intra) {
3696
        if (!s->h263_aic) {
3697
            if (n < 4)
3698
                q = s->y_dc_scale;
3699
            else
3700
                q = s->c_dc_scale;
3701
            q = q << 3;
3702
        } else
3703
            /* For AIC we skip quant/dequant of INTRADC */
3704
            q = 1 << 3;
3705

    
3706
        /* note: block[0] is assumed to be positive */
3707
        block[0] = (block[0] + (q >> 1)) / q;
3708
        start_i = 1;
3709
        last_non_zero = 0;
3710
        qmat = s->q_intra_matrix[qscale];
3711
        bias= s->intra_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3712
    } else {
3713
        start_i = 0;
3714
        last_non_zero = -1;
3715
        qmat = s->q_inter_matrix[qscale];
3716
        bias= s->inter_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3717
    }
3718
    threshold1= (1<<QMAT_SHIFT) - bias - 1;
3719
    threshold2= (threshold1<<1);
3720
    for(i=63;i>=start_i;i--) {
3721
        j = scantable[i];
3722
        level = block[j] * qmat[j];
3723

    
3724
        if(((unsigned)(level+threshold1))>threshold2){
3725
            last_non_zero = i;
3726
            break;
3727
        }else{
3728
            block[j]=0;
3729
        }
3730
    }
3731
    for(i=start_i; i<=last_non_zero; i++) {
3732
        j = scantable[i];
3733
        level = block[j] * qmat[j];
3734

    
3735
//        if(   bias+level >= (1<<QMAT_SHIFT)
3736
//           || bias-level >= (1<<QMAT_SHIFT)){
3737
        if(((unsigned)(level+threshold1))>threshold2){
3738
            if(level>0){
3739
                level= (bias + level)>>QMAT_SHIFT;
3740
                block[j]= level;
3741
            }else{
3742
                level= (bias - level)>>QMAT_SHIFT;
3743
                block[j]= -level;
3744
            }
3745
            max |=level;
3746
        }else{
3747
            block[j]=0;
3748
        }
3749
    }
3750
    *overflow= s->max_qcoeff < max; //overflow might have happened
3751

    
3752
    /* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */
3753
    if (s->dsp.idct_permutation_type != FF_NO_IDCT_PERM)
3754
        ff_block_permute(block, s->dsp.idct_permutation, scantable, last_non_zero);
3755

    
3756
    return last_non_zero;
3757
}
3758

    
3759
AVCodec h263_encoder = {
3760
    "h263",
3761
    CODEC_TYPE_VIDEO,
3762
    CODEC_ID_H263,
3763
    sizeof(MpegEncContext),
3764
    MPV_encode_init,
3765
    MPV_encode_picture,
3766
    MPV_encode_end,
3767
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3768
    .long_name= NULL_IF_CONFIG_SMALL("H.263 / H.263-1996"),
3769
};
3770

    
3771
AVCodec h263p_encoder = {
3772
    "h263p",
3773
    CODEC_TYPE_VIDEO,
3774
    CODEC_ID_H263P,
3775
    sizeof(MpegEncContext),
3776
    MPV_encode_init,
3777
    MPV_encode_picture,
3778
    MPV_encode_end,
3779
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3780
    .long_name= NULL_IF_CONFIG_SMALL("H.263+ / H.263-1998 / H.263 version 2"),
3781
};
3782

    
3783
AVCodec flv_encoder = {
3784
    "flv",
3785
    CODEC_TYPE_VIDEO,
3786
    CODEC_ID_FLV1,
3787
    sizeof(MpegEncContext),
3788
    MPV_encode_init,
3789
    MPV_encode_picture,
3790
    MPV_encode_end,
3791
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3792
    .long_name= NULL_IF_CONFIG_SMALL("Flash Video (FLV) / Sorenson Spark / Sorenson H.263"),
3793
};
3794

    
3795
AVCodec mpeg4_encoder = {
3796
    "mpeg4",
3797
    CODEC_TYPE_VIDEO,
3798
    CODEC_ID_MPEG4,
3799
    sizeof(MpegEncContext),
3800
    MPV_encode_init,
3801
    MPV_encode_picture,
3802
    MPV_encode_end,
3803
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3804
    .capabilities= CODEC_CAP_DELAY,
3805
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2"),
3806
};
3807

    
3808
AVCodec msmpeg4v1_encoder = {
3809
    "msmpeg4v1",
3810
    CODEC_TYPE_VIDEO,
3811
    CODEC_ID_MSMPEG4V1,
3812
    sizeof(MpegEncContext),
3813
    MPV_encode_init,
3814
    MPV_encode_picture,
3815
    MPV_encode_end,
3816
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3817
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 1"),
3818
};
3819

    
3820
AVCodec msmpeg4v2_encoder = {
3821
    "msmpeg4v2",
3822
    CODEC_TYPE_VIDEO,
3823
    CODEC_ID_MSMPEG4V2,
3824
    sizeof(MpegEncContext),
3825
    MPV_encode_init,
3826
    MPV_encode_picture,
3827
    MPV_encode_end,
3828
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3829
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 2"),
3830
};
3831

    
3832
AVCodec msmpeg4v3_encoder = {
3833
    "msmpeg4",
3834
    CODEC_TYPE_VIDEO,
3835
    CODEC_ID_MSMPEG4V3,
3836
    sizeof(MpegEncContext),
3837
    MPV_encode_init,
3838
    MPV_encode_picture,
3839
    MPV_encode_end,
3840
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3841
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 3"),
3842
};
3843

    
3844
AVCodec wmv1_encoder = {
3845
    "wmv1",
3846
    CODEC_TYPE_VIDEO,
3847
    CODEC_ID_WMV1,
3848
    sizeof(MpegEncContext),
3849
    MPV_encode_init,
3850
    MPV_encode_picture,
3851
    MPV_encode_end,
3852
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3853
    .long_name= NULL_IF_CONFIG_SMALL("Windows Media Video 7"),
3854
};