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ffmpeg / libavcodec / mpegvideo_enc.c @ 01418506

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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 "h263.h"
37
#include "faandct.h"
38
#include "aandcttab.h"
39
#include <limits.h>
40

    
41
//#undef NDEBUG
42
//#include <assert.h>
43

    
44
static int encode_picture(MpegEncContext *s, int picture_number);
45
static int dct_quantize_refine(MpegEncContext *s, DCTELEM *block, int16_t *weight, DCTELEM *orig, int n, int qscale);
46
static int sse_mb(MpegEncContext *s);
47

    
48
/* enable all paranoid tests for rounding, overflows, etc... */
49
//#define PARANOID
50

    
51
//#define DEBUG
52

    
53
static uint8_t default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
54
static uint8_t default_fcode_tab[MAX_MV*2+1];
55

    
56
void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
57
                           const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra)
58
{
59
    int qscale;
60
    int shift=0;
61

    
62
    for(qscale=qmin; qscale<=qmax; qscale++){
63
        int i;
64
        if (dsp->fdct == ff_jpeg_fdct_islow
65
#ifdef FAAN_POSTSCALE
66
            || dsp->fdct == ff_faandct
67
#endif
68
            ) {
69
            for(i=0;i<64;i++) {
70
                const int j= dsp->idct_permutation[i];
71
                /* 16 <= qscale * quant_matrix[i] <= 7905 */
72
                /* 19952             <= ff_aanscales[i] * qscale * quant_matrix[i]               <= 249205026 */
73
                /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1 << 36) / 249205026 */
74
                /* 3444240           >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
75

    
76
                qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) /
77
                                (qscale * quant_matrix[j]));
78
            }
79
        } else if (dsp->fdct == fdct_ifast
80
#ifndef FAAN_POSTSCALE
81
                   || dsp->fdct == ff_faandct
82
#endif
83
                   ) {
84
            for(i=0;i<64;i++) {
85
                const int j= dsp->idct_permutation[i];
86
                /* 16 <= qscale * quant_matrix[i] <= 7905 */
87
                /* 19952             <= ff_aanscales[i] * qscale * quant_matrix[i]               <= 249205026 */
88
                /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
89
                /* 3444240           >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
90

    
91
                qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) /
92
                                (ff_aanscales[i] * qscale * quant_matrix[j]));
93
            }
94
        } else {
95
            for(i=0;i<64;i++) {
96
                const int j= dsp->idct_permutation[i];
97
                /* We can safely suppose that 16 <= quant_matrix[i] <= 255
98
                   So 16           <= qscale * quant_matrix[i]             <= 7905
99
                   so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
100
                   so 32768        >= (1<<19) / (qscale * quant_matrix[i]) >= 67
101
                */
102
                qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / (qscale * quant_matrix[j]));
103
//                qmat  [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
104
                qmat16[qscale][0][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[j]);
105

    
106
                if(qmat16[qscale][0][i]==0 || qmat16[qscale][0][i]==128*256) qmat16[qscale][0][i]=128*256-1;
107
                qmat16[qscale][1][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][0][i]);
108
            }
109
        }
110

    
111
        for(i=intra; i<64; i++){
112
            int64_t max= 8191;
113
            if (dsp->fdct == fdct_ifast
114
#ifndef FAAN_POSTSCALE
115
                   || dsp->fdct == ff_faandct
116
#endif
117
                   ) {
118
                max = (8191LL*ff_aanscales[i]) >> 14;
119
            }
120
            while(((max * qmat[qscale][i]) >> shift) > INT_MAX){
121
                shift++;
122
            }
123
        }
124
    }
125
    if(shift){
126
        av_log(NULL, AV_LOG_INFO, "Warning, QMAT_SHIFT is larger than %d, overflows possible\n", QMAT_SHIFT - shift);
127
    }
128
}
129

    
130
static inline void update_qscale(MpegEncContext *s){
131
    s->qscale= (s->lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
132
    s->qscale= av_clip(s->qscale, s->avctx->qmin, s->avctx->qmax);
133

    
134
    s->lambda2= (s->lambda*s->lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
135
}
136

    
137
void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix){
138
    int i;
139

    
140
    if(matrix){
141
        put_bits(pb, 1, 1);
142
        for(i=0;i<64;i++) {
143
            put_bits(pb, 8, matrix[ ff_zigzag_direct[i] ]);
144
        }
145
    }else
146
        put_bits(pb, 1, 0);
147
}
148

    
149
static void copy_picture_attributes(MpegEncContext *s, AVFrame *dst, AVFrame *src){
150
    int i;
151

    
152
    dst->pict_type              = src->pict_type;
153
    dst->quality                = src->quality;
154
    dst->coded_picture_number   = src->coded_picture_number;
155
    dst->display_picture_number = src->display_picture_number;
156
//    dst->reference              = src->reference;
157
    dst->pts                    = src->pts;
158
    dst->interlaced_frame       = src->interlaced_frame;
159
    dst->top_field_first        = src->top_field_first;
160

    
161
    if(s->avctx->me_threshold){
162
        if(!src->motion_val[0])
163
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_val not set!\n");
164
        if(!src->mb_type)
165
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.mb_type not set!\n");
166
        if(!src->ref_index[0])
167
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.ref_index not set!\n");
168
        if(src->motion_subsample_log2 != dst->motion_subsample_log2)
169
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_subsample_log2 doesn't match! (%d!=%d)\n",
170
            src->motion_subsample_log2, dst->motion_subsample_log2);
171

    
172
        memcpy(dst->mb_type, src->mb_type, s->mb_stride * s->mb_height * sizeof(dst->mb_type[0]));
173

    
174
        for(i=0; i<2; i++){
175
            int stride= ((16*s->mb_width )>>src->motion_subsample_log2) + 1;
176
            int height= ((16*s->mb_height)>>src->motion_subsample_log2);
177

    
178
            if(src->motion_val[i] && src->motion_val[i] != dst->motion_val[i]){
179
                memcpy(dst->motion_val[i], src->motion_val[i], 2*stride*height*sizeof(int16_t));
180
            }
181
            if(src->ref_index[i] && src->ref_index[i] != dst->ref_index[i]){
182
                memcpy(dst->ref_index[i], src->ref_index[i], s->b8_stride*2*s->mb_height*sizeof(int8_t));
183
            }
184
        }
185
    }
186
}
187

    
188
static void update_duplicate_context_after_me(MpegEncContext *dst, MpegEncContext *src){
189
#define COPY(a) dst->a= src->a
190
    COPY(pict_type);
191
    COPY(current_picture);
192
    COPY(f_code);
193
    COPY(b_code);
194
    COPY(qscale);
195
    COPY(lambda);
196
    COPY(lambda2);
197
    COPY(picture_in_gop_number);
198
    COPY(gop_picture_number);
199
    COPY(frame_pred_frame_dct); //FIXME don't set in encode_header
200
    COPY(progressive_frame); //FIXME don't set in encode_header
201
    COPY(partitioned_frame); //FIXME don't set in encode_header
202
#undef COPY
203
}
204

    
205
/**
206
 * sets the given MpegEncContext to defaults for encoding.
207
 * the changed fields will not depend upon the prior state of the MpegEncContext.
208
 */
209
static void MPV_encode_defaults(MpegEncContext *s){
210
    int i;
211
    MPV_common_defaults(s);
212

    
213
    for(i=-16; i<16; i++){
214
        default_fcode_tab[i + MAX_MV]= 1;
215
    }
216
    s->me.mv_penalty= default_mv_penalty;
217
    s->fcode_tab= default_fcode_tab;
218
}
219

    
220
/* init video encoder */
221
av_cold int MPV_encode_init(AVCodecContext *avctx)
222
{
223
    MpegEncContext *s = avctx->priv_data;
224
    int i;
225
    int chroma_h_shift, chroma_v_shift;
226

    
227
    MPV_encode_defaults(s);
228

    
229
    switch (avctx->codec_id) {
230
    case CODEC_ID_MPEG2VIDEO:
231
        if(avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P){
232
            av_log(avctx, AV_LOG_ERROR, "only YUV420 and YUV422 are supported\n");
233
            return -1;
234
        }
235
        break;
236
    case CODEC_ID_LJPEG:
237
    case CODEC_ID_MJPEG:
238
        if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P && avctx->pix_fmt != PIX_FMT_RGB32 &&
239
           ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P) || avctx->strict_std_compliance>FF_COMPLIANCE_INOFFICIAL)){
240
            av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n");
241
            return -1;
242
        }
243
        break;
244
    default:
245
        if(avctx->pix_fmt != PIX_FMT_YUV420P){
246
            av_log(avctx, AV_LOG_ERROR, "only YUV420 is supported\n");
247
            return -1;
248
        }
249
    }
250

    
251
    switch (avctx->pix_fmt) {
252
    case PIX_FMT_YUVJ422P:
253
    case PIX_FMT_YUV422P:
254
        s->chroma_format = CHROMA_422;
255
        break;
256
    case PIX_FMT_YUVJ420P:
257
    case PIX_FMT_YUV420P:
258
    default:
259
        s->chroma_format = CHROMA_420;
260
        break;
261
    }
262

    
263
    s->bit_rate = avctx->bit_rate;
264
    s->width = avctx->width;
265
    s->height = avctx->height;
266
    if(avctx->gop_size > 600 && avctx->strict_std_compliance>FF_COMPLIANCE_EXPERIMENTAL){
267
        av_log(avctx, AV_LOG_ERROR, "Warning keyframe interval too large! reducing it ...\n");
268
        avctx->gop_size=600;
269
    }
270
    s->gop_size = avctx->gop_size;
271
    s->avctx = avctx;
272
    s->flags= avctx->flags;
273
    s->flags2= avctx->flags2;
274
    s->max_b_frames= avctx->max_b_frames;
275
    s->codec_id= avctx->codec->id;
276
    s->luma_elim_threshold  = avctx->luma_elim_threshold;
277
    s->chroma_elim_threshold= avctx->chroma_elim_threshold;
278
    s->strict_std_compliance= avctx->strict_std_compliance;
279
    s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
280
    s->quarter_sample= (avctx->flags & CODEC_FLAG_QPEL)!=0;
281
    s->mpeg_quant= avctx->mpeg_quant;
282
    s->rtp_mode= !!avctx->rtp_payload_size;
283
    s->intra_dc_precision= avctx->intra_dc_precision;
284
    s->user_specified_pts = AV_NOPTS_VALUE;
285

    
286
    if (s->gop_size <= 1) {
287
        s->intra_only = 1;
288
        s->gop_size = 12;
289
    } else {
290
        s->intra_only = 0;
291
    }
292

    
293
    s->me_method = avctx->me_method;
294

    
295
    /* Fixed QSCALE */
296
    s->fixed_qscale = !!(avctx->flags & CODEC_FLAG_QSCALE);
297

    
298
    s->adaptive_quant= (   s->avctx->lumi_masking
299
                        || s->avctx->dark_masking
300
                        || s->avctx->temporal_cplx_masking
301
                        || s->avctx->spatial_cplx_masking
302
                        || s->avctx->p_masking
303
                        || s->avctx->border_masking
304
                        || (s->flags&CODEC_FLAG_QP_RD))
305
                       && !s->fixed_qscale;
306

    
307
    s->obmc= !!(s->flags & CODEC_FLAG_OBMC);
308
    s->loop_filter= !!(s->flags & CODEC_FLAG_LOOP_FILTER);
309
    s->alternate_scan= !!(s->flags & CODEC_FLAG_ALT_SCAN);
310
    s->intra_vlc_format= !!(s->flags2 & CODEC_FLAG2_INTRA_VLC);
311
    s->q_scale_type= !!(s->flags2 & CODEC_FLAG2_NON_LINEAR_QUANT);
312

    
313
    if(avctx->rc_max_rate && !avctx->rc_buffer_size){
314
        av_log(avctx, AV_LOG_ERROR, "a vbv buffer size is needed, for encoding with a maximum bitrate\n");
315
        return -1;
316
    }
317

    
318
    if(avctx->rc_min_rate && avctx->rc_max_rate != avctx->rc_min_rate){
319
        av_log(avctx, AV_LOG_INFO, "Warning min_rate > 0 but min_rate != max_rate isn't recommended!\n");
320
    }
321

    
322
    if(avctx->rc_min_rate && avctx->rc_min_rate > avctx->bit_rate){
323
        av_log(avctx, AV_LOG_ERROR, "bitrate below min bitrate\n");
324
        return -1;
325
    }
326

    
327
    if(avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate){
328
        av_log(avctx, AV_LOG_INFO, "bitrate above max bitrate\n");
329
        return -1;
330
    }
331

    
332
    if(avctx->rc_max_rate && avctx->rc_max_rate == avctx->bit_rate && avctx->rc_max_rate != avctx->rc_min_rate){
333
        av_log(avctx, AV_LOG_INFO, "impossible bitrate constraints, this will fail\n");
334
    }
335

    
336
    if(avctx->rc_buffer_size && avctx->bit_rate*av_q2d(avctx->time_base) > avctx->rc_buffer_size){
337
        av_log(avctx, AV_LOG_ERROR, "VBV buffer too small for bitrate\n");
338
        return -1;
339
    }
340

    
341
    if(avctx->bit_rate*av_q2d(avctx->time_base) > avctx->bit_rate_tolerance){
342
        av_log(avctx, AV_LOG_ERROR, "bitrate tolerance too small for bitrate\n");
343
        return -1;
344
    }
345

    
346
    if(   s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate
347
       && (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO)
348
       && 90000LL * (avctx->rc_buffer_size-1) > s->avctx->rc_max_rate*0xFFFFLL){
349

    
350
        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");
351
    }
352

    
353
    if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4
354
       && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P && s->codec_id != CODEC_ID_FLV1){
355
        av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n");
356
        return -1;
357
    }
358

    
359
    if(s->obmc && s->avctx->mb_decision != FF_MB_DECISION_SIMPLE){
360
        av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with simple mb decision\n");
361
        return -1;
362
    }
363

    
364
    if(s->obmc && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P){
365
        av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with H263(+)\n");
366
        return -1;
367
    }
368

    
369
    if(s->quarter_sample && s->codec_id != CODEC_ID_MPEG4){
370
        av_log(avctx, AV_LOG_ERROR, "qpel not supported by codec\n");
371
        return -1;
372
    }
373

    
374
    if(s->data_partitioning && s->codec_id != CODEC_ID_MPEG4){
375
        av_log(avctx, AV_LOG_ERROR, "data partitioning not supported by codec\n");
376
        return -1;
377
    }
378

    
379
    if(s->max_b_frames && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO){
380
        av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n");
381
        return -1;
382
    }
383

    
384
    if((s->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN))
385
       && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG2VIDEO){
386
        av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n");
387
        return -1;
388
    }
389

    
390
    if(s->mpeg_quant && s->codec_id != CODEC_ID_MPEG4){ //FIXME mpeg2 uses that too
391
        av_log(avctx, AV_LOG_ERROR, "mpeg2 style quantization not supported by codec\n");
392
        return -1;
393
    }
394

    
395
    if((s->flags & CODEC_FLAG_CBP_RD) && !avctx->trellis){
396
        av_log(avctx, AV_LOG_ERROR, "CBP RD needs trellis quant\n");
397
        return -1;
398
    }
399

    
400
    if((s->flags & CODEC_FLAG_QP_RD) && s->avctx->mb_decision != FF_MB_DECISION_RD){
401
        av_log(avctx, AV_LOG_ERROR, "QP RD needs mbd=2\n");
402
        return -1;
403
    }
404

    
405
    if(s->avctx->scenechange_threshold < 1000000000 && (s->flags & CODEC_FLAG_CLOSED_GOP)){
406
        av_log(avctx, AV_LOG_ERROR, "closed gop with scene change detection are not supported yet, set threshold to 1000000000\n");
407
        return -1;
408
    }
409

    
410
    if((s->flags2 & CODEC_FLAG2_INTRA_VLC) && s->codec_id != CODEC_ID_MPEG2VIDEO){
411
        av_log(avctx, AV_LOG_ERROR, "intra vlc table not supported by codec\n");
412
        return -1;
413
    }
414

    
415
    if(s->flags & CODEC_FLAG_LOW_DELAY){
416
        if (s->codec_id != CODEC_ID_MPEG2VIDEO){
417
            av_log(avctx, AV_LOG_ERROR, "low delay forcing is only available for mpeg2\n");
418
            return -1;
419
        }
420
        if (s->max_b_frames != 0){
421
            av_log(avctx, AV_LOG_ERROR, "b frames cannot be used with low delay\n");
422
            return -1;
423
        }
424
    }
425

    
426
    if(s->q_scale_type == 1){
427
        if(s->codec_id != CODEC_ID_MPEG2VIDEO){
428
            av_log(avctx, AV_LOG_ERROR, "non linear quant is only available for mpeg2\n");
429
            return -1;
430
        }
431
        if(avctx->qmax > 12){
432
            av_log(avctx, AV_LOG_ERROR, "non linear quant only supports qmax <= 12 currently\n");
433
            return -1;
434
        }
435
    }
436

    
437
    if(s->avctx->thread_count > 1 && s->codec_id != CODEC_ID_MPEG4
438
       && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO
439
       && (s->codec_id != CODEC_ID_H263P || !(s->flags & CODEC_FLAG_H263P_SLICE_STRUCT))){
440
        av_log(avctx, AV_LOG_ERROR, "multi threaded encoding not supported by codec\n");
441
        return -1;
442
    }
443

    
444
    if(s->avctx->thread_count < 1){
445
        av_log(avctx, AV_LOG_ERROR, "automatic thread number detection not supported by codec, patch welcome\n");
446
        return -1;
447
    }
448

    
449
    if(s->avctx->thread_count > 1)
450
        s->rtp_mode= 1;
451

    
452
    if(!avctx->time_base.den || !avctx->time_base.num){
453
        av_log(avctx, AV_LOG_ERROR, "framerate not set\n");
454
        return -1;
455
    }
456

    
457
    i= (INT_MAX/2+128)>>8;
458
    if(avctx->me_threshold >= i){
459
        av_log(avctx, AV_LOG_ERROR, "me_threshold too large, max is %d\n", i - 1);
460
        return -1;
461
    }
462
    if(avctx->mb_threshold >= i){
463
        av_log(avctx, AV_LOG_ERROR, "mb_threshold too large, max is %d\n", i - 1);
464
        return -1;
465
    }
466

    
467
    if(avctx->b_frame_strategy && (avctx->flags&CODEC_FLAG_PASS2)){
468
        av_log(avctx, AV_LOG_INFO, "notice: b_frame_strategy only affects the first pass\n");
469
        avctx->b_frame_strategy = 0;
470
    }
471

    
472
    i= av_gcd(avctx->time_base.den, avctx->time_base.num);
473
    if(i > 1){
474
        av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n");
475
        avctx->time_base.den /= i;
476
        avctx->time_base.num /= i;
477
//        return -1;
478
    }
479

    
480
    if(s->codec_id==CODEC_ID_MJPEG){
481
        s->intra_quant_bias= 1<<(QUANT_BIAS_SHIFT-1); //(a + x/2)/x
482
        s->inter_quant_bias= 0;
483
    }else if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO){
484
        s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x
485
        s->inter_quant_bias= 0;
486
    }else{
487
        s->intra_quant_bias=0;
488
        s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x
489
    }
490

    
491
    if(avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
492
        s->intra_quant_bias= avctx->intra_quant_bias;
493
    if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)
494
        s->inter_quant_bias= avctx->inter_quant_bias;
495

    
496
    avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift);
497

    
498
    if(avctx->codec_id == CODEC_ID_MPEG4 && s->avctx->time_base.den > (1<<16)-1){
499
        av_log(avctx, AV_LOG_ERROR, "timebase not supported by mpeg 4 standard\n");
500
        return -1;
501
    }
502
    s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1;
503

    
504
    switch(avctx->codec->id) {
505
    case CODEC_ID_MPEG1VIDEO:
506
        s->out_format = FMT_MPEG1;
507
        s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
508
        avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
509
        break;
510
    case CODEC_ID_MPEG2VIDEO:
511
        s->out_format = FMT_MPEG1;
512
        s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
513
        avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
514
        s->rtp_mode= 1;
515
        break;
516
    case CODEC_ID_LJPEG:
517
    case CODEC_ID_MJPEG:
518
        s->out_format = FMT_MJPEG;
519
        s->intra_only = 1; /* force intra only for jpeg */
520
        s->mjpeg_vsample[0] = 2;
521
        s->mjpeg_vsample[1] = 2>>chroma_v_shift;
522
        s->mjpeg_vsample[2] = 2>>chroma_v_shift;
523
        s->mjpeg_hsample[0] = 2;
524
        s->mjpeg_hsample[1] = 2>>chroma_h_shift;
525
        s->mjpeg_hsample[2] = 2>>chroma_h_shift;
526
        if (!(CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER)
527
            || ff_mjpeg_encode_init(s) < 0)
528
            return -1;
529
        avctx->delay=0;
530
        s->low_delay=1;
531
        break;
532
    case CODEC_ID_H261:
533
        if (!CONFIG_H261_ENCODER)  return -1;
534
        if (ff_h261_get_picture_format(s->width, s->height) < 0) {
535
            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);
536
            return -1;
537
        }
538
        s->out_format = FMT_H261;
539
        avctx->delay=0;
540
        s->low_delay=1;
541
        break;
542
    case CODEC_ID_H263:
543
        if (!CONFIG_H263_ENCODER)  return -1;
544
        if (h263_get_picture_format(s->width, s->height) == 7) {
545
            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);
546
            return -1;
547
        }
548
        s->out_format = FMT_H263;
549
        s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
550
        avctx->delay=0;
551
        s->low_delay=1;
552
        break;
553
    case CODEC_ID_H263P:
554
        s->out_format = FMT_H263;
555
        s->h263_plus = 1;
556
        /* Fx */
557
        s->umvplus = (avctx->flags & CODEC_FLAG_H263P_UMV) ? 1:0;
558
        s->h263_aic= (avctx->flags & CODEC_FLAG_AC_PRED) ? 1:0;
559
        s->modified_quant= s->h263_aic;
560
        s->alt_inter_vlc= (avctx->flags & CODEC_FLAG_H263P_AIV) ? 1:0;
561
        s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
562
        s->loop_filter= (avctx->flags & CODEC_FLAG_LOOP_FILTER) ? 1:0;
563
        s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
564
        s->h263_slice_structured= (s->flags & CODEC_FLAG_H263P_SLICE_STRUCT) ? 1:0;
565

    
566
        /* /Fx */
567
        /* These are just to be sure */
568
        avctx->delay=0;
569
        s->low_delay=1;
570
        break;
571
    case CODEC_ID_FLV1:
572
        s->out_format = FMT_H263;
573
        s->h263_flv = 2; /* format = 1; 11-bit codes */
574
        s->unrestricted_mv = 1;
575
        s->rtp_mode=0; /* don't allow GOB */
576
        avctx->delay=0;
577
        s->low_delay=1;
578
        break;
579
    case CODEC_ID_RV10:
580
        s->out_format = FMT_H263;
581
        avctx->delay=0;
582
        s->low_delay=1;
583
        break;
584
    case CODEC_ID_RV20:
585
        s->out_format = FMT_H263;
586
        avctx->delay=0;
587
        s->low_delay=1;
588
        s->modified_quant=1;
589
        s->h263_aic=1;
590
        s->h263_plus=1;
591
        s->loop_filter=1;
592
        s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
593
        break;
594
    case CODEC_ID_MPEG4:
595
        s->out_format = FMT_H263;
596
        s->h263_pred = 1;
597
        s->unrestricted_mv = 1;
598
        s->low_delay= s->max_b_frames ? 0 : 1;
599
        avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
600
        break;
601
    case CODEC_ID_MSMPEG4V1:
602
        s->out_format = FMT_H263;
603
        s->h263_msmpeg4 = 1;
604
        s->h263_pred = 1;
605
        s->unrestricted_mv = 1;
606
        s->msmpeg4_version= 1;
607
        avctx->delay=0;
608
        s->low_delay=1;
609
        break;
610
    case CODEC_ID_MSMPEG4V2:
611
        s->out_format = FMT_H263;
612
        s->h263_msmpeg4 = 1;
613
        s->h263_pred = 1;
614
        s->unrestricted_mv = 1;
615
        s->msmpeg4_version= 2;
616
        avctx->delay=0;
617
        s->low_delay=1;
618
        break;
619
    case CODEC_ID_MSMPEG4V3:
620
        s->out_format = FMT_H263;
621
        s->h263_msmpeg4 = 1;
622
        s->h263_pred = 1;
623
        s->unrestricted_mv = 1;
624
        s->msmpeg4_version= 3;
625
        s->flipflop_rounding=1;
626
        avctx->delay=0;
627
        s->low_delay=1;
628
        break;
629
    case CODEC_ID_WMV1:
630
        s->out_format = FMT_H263;
631
        s->h263_msmpeg4 = 1;
632
        s->h263_pred = 1;
633
        s->unrestricted_mv = 1;
634
        s->msmpeg4_version= 4;
635
        s->flipflop_rounding=1;
636
        avctx->delay=0;
637
        s->low_delay=1;
638
        break;
639
    case CODEC_ID_WMV2:
640
        s->out_format = FMT_H263;
641
        s->h263_msmpeg4 = 1;
642
        s->h263_pred = 1;
643
        s->unrestricted_mv = 1;
644
        s->msmpeg4_version= 5;
645
        s->flipflop_rounding=1;
646
        avctx->delay=0;
647
        s->low_delay=1;
648
        break;
649
    default:
650
        return -1;
651
    }
652

    
653
    avctx->has_b_frames= !s->low_delay;
654

    
655
    s->encoding = 1;
656

    
657
    s->progressive_frame=
658
    s->progressive_sequence= !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN));
659

    
660
    /* init */
661
    if (MPV_common_init(s) < 0)
662
        return -1;
663

    
664
    if(!s->dct_quantize)
665
        s->dct_quantize = dct_quantize_c;
666
    if(!s->denoise_dct)
667
        s->denoise_dct = denoise_dct_c;
668
    s->fast_dct_quantize = s->dct_quantize;
669
    if(avctx->trellis)
670
        s->dct_quantize = dct_quantize_trellis_c;
671

    
672
    if((CONFIG_H263P_ENCODER || CONFIG_RV20_ENCODER) && s->modified_quant)
673
        s->chroma_qscale_table= ff_h263_chroma_qscale_table;
674

    
675
    s->quant_precision=5;
676

    
677
    ff_set_cmp(&s->dsp, s->dsp.ildct_cmp, s->avctx->ildct_cmp);
678
    ff_set_cmp(&s->dsp, s->dsp.frame_skip_cmp, s->avctx->frame_skip_cmp);
679

    
680
    if (CONFIG_H261_ENCODER && s->out_format == FMT_H261)
681
        ff_h261_encode_init(s);
682
    if (CONFIG_ANY_H263_ENCODER && s->out_format == FMT_H263)
683
        h263_encode_init(s);
684
    if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version)
685
        ff_msmpeg4_encode_init(s);
686
    if ((CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
687
        && s->out_format == FMT_MPEG1)
688
        ff_mpeg1_encode_init(s);
689

    
690
    /* init q matrix */
691
    for(i=0;i<64;i++) {
692
        int j= s->dsp.idct_permutation[i];
693
        if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){
694
            s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
695
            s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
696
        }else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){
697
            s->intra_matrix[j] =
698
            s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
699
        }else
700
        { /* mpeg1/2 */
701
            s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
702
            s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
703
        }
704
        if(s->avctx->intra_matrix)
705
            s->intra_matrix[j] = s->avctx->intra_matrix[i];
706
        if(s->avctx->inter_matrix)
707
            s->inter_matrix[j] = s->avctx->inter_matrix[i];
708
    }
709

    
710
    /* precompute matrix */
711
    /* for mjpeg, we do include qscale in the matrix */
712
    if (s->out_format != FMT_MJPEG) {
713
        ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
714
                       s->intra_matrix, s->intra_quant_bias, avctx->qmin, 31, 1);
715
        ff_convert_matrix(&s->dsp, s->q_inter_matrix, s->q_inter_matrix16,
716
                       s->inter_matrix, s->inter_quant_bias, avctx->qmin, 31, 0);
717
    }
718

    
719
    if(ff_rate_control_init(s) < 0)
720
        return -1;
721

    
722
    return 0;
723
}
724

    
725
av_cold int MPV_encode_end(AVCodecContext *avctx)
726
{
727
    MpegEncContext *s = avctx->priv_data;
728

    
729
    ff_rate_control_uninit(s);
730

    
731
    MPV_common_end(s);
732
    if ((CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER) && s->out_format == FMT_MJPEG)
733
        ff_mjpeg_encode_close(s);
734

    
735
    av_freep(&avctx->extradata);
736

    
737
    return 0;
738
}
739

    
740
static int get_sae(uint8_t *src, int ref, int stride){
741
    int x,y;
742
    int acc=0;
743

    
744
    for(y=0; y<16; y++){
745
        for(x=0; x<16; x++){
746
            acc+= FFABS(src[x+y*stride] - ref);
747
        }
748
    }
749

    
750
    return acc;
751
}
752

    
753
static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride){
754
    int x, y, w, h;
755
    int acc=0;
756

    
757
    w= s->width &~15;
758
    h= s->height&~15;
759

    
760
    for(y=0; y<h; y+=16){
761
        for(x=0; x<w; x+=16){
762
            int offset= x + y*stride;
763
            int sad = s->dsp.sad[0](NULL, src + offset, ref + offset, stride, 16);
764
            int mean= (s->dsp.pix_sum(src + offset, stride) + 128)>>8;
765
            int sae = get_sae(src + offset, mean, stride);
766

    
767
            acc+= sae + 500 < sad;
768
        }
769
    }
770
    return acc;
771
}
772

    
773

    
774
static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
775
    AVFrame *pic=NULL;
776
    int64_t pts;
777
    int i;
778
    const int encoding_delay= s->max_b_frames;
779
    int direct=1;
780

    
781
    if(pic_arg){
782
        pts= pic_arg->pts;
783
        pic_arg->display_picture_number= s->input_picture_number++;
784

    
785
        if(pts != AV_NOPTS_VALUE){
786
            if(s->user_specified_pts != AV_NOPTS_VALUE){
787
                int64_t time= pts;
788
                int64_t last= s->user_specified_pts;
789

    
790
                if(time <= last){
791
                    av_log(s->avctx, AV_LOG_ERROR, "Error, Invalid timestamp=%"PRId64", last=%"PRId64"\n", pts, s->user_specified_pts);
792
                    return -1;
793
                }
794
            }
795
            s->user_specified_pts= pts;
796
        }else{
797
            if(s->user_specified_pts != AV_NOPTS_VALUE){
798
                s->user_specified_pts=
799
                pts= s->user_specified_pts + 1;
800
                av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%"PRId64")\n", pts);
801
            }else{
802
                pts= pic_arg->display_picture_number;
803
            }
804
        }
805
    }
806

    
807
  if(pic_arg){
808
    if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0;
809
    if(pic_arg->linesize[0] != s->linesize) direct=0;
810
    if(pic_arg->linesize[1] != s->uvlinesize) direct=0;
811
    if(pic_arg->linesize[2] != s->uvlinesize) direct=0;
812

    
813
//    av_log(AV_LOG_DEBUG, "%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize);
814

    
815
    if(direct){
816
        i= ff_find_unused_picture(s, 1);
817

    
818
        pic= (AVFrame*)&s->picture[i];
819
        pic->reference= 3;
820

    
821
        for(i=0; i<4; i++){
822
            pic->data[i]= pic_arg->data[i];
823
            pic->linesize[i]= pic_arg->linesize[i];
824
        }
825
        ff_alloc_picture(s, (Picture*)pic, 1);
826
    }else{
827
        i= ff_find_unused_picture(s, 0);
828

    
829
        pic= (AVFrame*)&s->picture[i];
830
        pic->reference= 3;
831

    
832
        ff_alloc_picture(s, (Picture*)pic, 0);
833

    
834
        if(   pic->data[0] + INPLACE_OFFSET == pic_arg->data[0]
835
           && pic->data[1] + INPLACE_OFFSET == pic_arg->data[1]
836
           && pic->data[2] + INPLACE_OFFSET == pic_arg->data[2]){
837
       // empty
838
        }else{
839
            int h_chroma_shift, v_chroma_shift;
840
            avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
841

    
842
            for(i=0; i<3; i++){
843
                int src_stride= pic_arg->linesize[i];
844
                int dst_stride= i ? s->uvlinesize : s->linesize;
845
                int h_shift= i ? h_chroma_shift : 0;
846
                int v_shift= i ? v_chroma_shift : 0;
847
                int w= s->width >>h_shift;
848
                int h= s->height>>v_shift;
849
                uint8_t *src= pic_arg->data[i];
850
                uint8_t *dst= pic->data[i];
851

    
852
                if(!s->avctx->rc_buffer_size)
853
                    dst +=INPLACE_OFFSET;
854

    
855
                if(src_stride==dst_stride)
856
                    memcpy(dst, src, src_stride*h);
857
                else{
858
                    while(h--){
859
                        memcpy(dst, src, w);
860
                        dst += dst_stride;
861
                        src += src_stride;
862
                    }
863
                }
864
            }
865
        }
866
    }
867
    copy_picture_attributes(s, pic, pic_arg);
868
    pic->pts= pts; //we set this here to avoid modifiying pic_arg
869
  }
870

    
871
    /* shift buffer entries */
872
    for(i=1; i<MAX_PICTURE_COUNT /*s->encoding_delay+1*/; i++)
873
        s->input_picture[i-1]= s->input_picture[i];
874

    
875
    s->input_picture[encoding_delay]= (Picture*)pic;
876

    
877
    return 0;
878
}
879

    
880
static int skip_check(MpegEncContext *s, Picture *p, Picture *ref){
881
    int x, y, plane;
882
    int score=0;
883
    int64_t score64=0;
884

    
885
    for(plane=0; plane<3; plane++){
886
        const int stride= p->linesize[plane];
887
        const int bw= plane ? 1 : 2;
888
        for(y=0; y<s->mb_height*bw; y++){
889
            for(x=0; x<s->mb_width*bw; x++){
890
                int off= p->type == FF_BUFFER_TYPE_SHARED ? 0: 16;
891
                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);
892

    
893
                switch(s->avctx->frame_skip_exp){
894
                    case 0: score= FFMAX(score, v); break;
895
                    case 1: score+= FFABS(v);break;
896
                    case 2: score+= v*v;break;
897
                    case 3: score64+= FFABS(v*v*(int64_t)v);break;
898
                    case 4: score64+= v*v*(int64_t)(v*v);break;
899
                }
900
            }
901
        }
902
    }
903

    
904
    if(score) score64= score;
905

    
906
    if(score64 < s->avctx->frame_skip_threshold)
907
        return 1;
908
    if(score64 < ((s->avctx->frame_skip_factor * (int64_t)s->lambda)>>8))
909
        return 1;
910
    return 0;
911
}
912

    
913
static int estimate_best_b_count(MpegEncContext *s){
914
    AVCodec *codec= avcodec_find_encoder(s->avctx->codec_id);
915
    AVCodecContext *c= avcodec_alloc_context();
916
    AVFrame input[FF_MAX_B_FRAMES+2];
917
    const int scale= s->avctx->brd_scale;
918
    int i, j, out_size, p_lambda, b_lambda, lambda2;
919
    int outbuf_size= s->width * s->height; //FIXME
920
    uint8_t *outbuf= av_malloc(outbuf_size);
921
    int64_t best_rd= INT64_MAX;
922
    int best_b_count= -1;
923

    
924
    assert(scale>=0 && scale <=3);
925

    
926
//    emms_c();
927
    p_lambda= s->last_lambda_for[FF_P_TYPE]; //s->next_picture_ptr->quality;
928
    b_lambda= s->last_lambda_for[FF_B_TYPE]; //p_lambda *FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset;
929
    if(!b_lambda) b_lambda= p_lambda; //FIXME we should do this somewhere else
930
    lambda2= (b_lambda*b_lambda + (1<<FF_LAMBDA_SHIFT)/2 ) >> FF_LAMBDA_SHIFT;
931

    
932
    c->width = s->width >> scale;
933
    c->height= s->height>> scale;
934
    c->flags= CODEC_FLAG_QSCALE | CODEC_FLAG_PSNR | CODEC_FLAG_INPUT_PRESERVED /*| CODEC_FLAG_EMU_EDGE*/;
935
    c->flags|= s->avctx->flags & CODEC_FLAG_QPEL;
936
    c->mb_decision= s->avctx->mb_decision;
937
    c->me_cmp= s->avctx->me_cmp;
938
    c->mb_cmp= s->avctx->mb_cmp;
939
    c->me_sub_cmp= s->avctx->me_sub_cmp;
940
    c->pix_fmt = PIX_FMT_YUV420P;
941
    c->time_base= s->avctx->time_base;
942
    c->max_b_frames= s->max_b_frames;
943

    
944
    if (avcodec_open(c, codec) < 0)
945
        return -1;
946

    
947
    for(i=0; i<s->max_b_frames+2; i++){
948
        int ysize= c->width*c->height;
949
        int csize= (c->width/2)*(c->height/2);
950
        Picture pre_input, *pre_input_ptr= i ? s->input_picture[i-1] : s->next_picture_ptr;
951

    
952
        avcodec_get_frame_defaults(&input[i]);
953
        input[i].data[0]= av_malloc(ysize + 2*csize);
954
        input[i].data[1]= input[i].data[0] + ysize;
955
        input[i].data[2]= input[i].data[1] + csize;
956
        input[i].linesize[0]= c->width;
957
        input[i].linesize[1]=
958
        input[i].linesize[2]= c->width/2;
959

    
960
        if(pre_input_ptr && (!i || s->input_picture[i-1])) {
961
            pre_input= *pre_input_ptr;
962

    
963
            if(pre_input.type != FF_BUFFER_TYPE_SHARED && i) {
964
                pre_input.data[0]+=INPLACE_OFFSET;
965
                pre_input.data[1]+=INPLACE_OFFSET;
966
                pre_input.data[2]+=INPLACE_OFFSET;
967
            }
968

    
969
            s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0], pre_input.data[0], pre_input.linesize[0], c->width, c->height);
970
            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);
971
            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);
972
        }
973
    }
974

    
975
    for(j=0; j<s->max_b_frames+1; j++){
976
        int64_t rd=0;
977

    
978
        if(!s->input_picture[j])
979
            break;
980

    
981
        c->error[0]= c->error[1]= c->error[2]= 0;
982

    
983
        input[0].pict_type= FF_I_TYPE;
984
        input[0].quality= 1 * FF_QP2LAMBDA;
985
        out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[0]);
986
//        rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT;
987

    
988
        for(i=0; i<s->max_b_frames+1; i++){
989
            int is_p= i % (j+1) == j || i==s->max_b_frames;
990

    
991
            input[i+1].pict_type= is_p ? FF_P_TYPE : FF_B_TYPE;
992
            input[i+1].quality= is_p ? p_lambda : b_lambda;
993
            out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[i+1]);
994
            rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
995
        }
996

    
997
        /* get the delayed frames */
998
        while(out_size){
999
            out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);
1000
            rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1001
        }
1002

    
1003
        rd += c->error[0] + c->error[1] + c->error[2];
1004

    
1005
        if(rd < best_rd){
1006
            best_rd= rd;
1007
            best_b_count= j;
1008
        }
1009
    }
1010

    
1011
    av_freep(&outbuf);
1012
    avcodec_close(c);
1013
    av_freep(&c);
1014

    
1015
    for(i=0; i<s->max_b_frames+2; i++){
1016
        av_freep(&input[i].data[0]);
1017
    }
1018

    
1019
    return best_b_count;
1020
}
1021

    
1022
static void select_input_picture(MpegEncContext *s){
1023
    int i;
1024

    
1025
    for(i=1; i<MAX_PICTURE_COUNT; i++)
1026
        s->reordered_input_picture[i-1]= s->reordered_input_picture[i];
1027
    s->reordered_input_picture[MAX_PICTURE_COUNT-1]= NULL;
1028

    
1029
    /* set next picture type & ordering */
1030
    if(s->reordered_input_picture[0]==NULL && s->input_picture[0]){
1031
        if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture_ptr==NULL || s->intra_only){
1032
            s->reordered_input_picture[0]= s->input_picture[0];
1033
            s->reordered_input_picture[0]->pict_type= FF_I_TYPE;
1034
            s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1035
        }else{
1036
            int b_frames;
1037

    
1038
            if(s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor){
1039
                if(s->picture_in_gop_number < s->gop_size && skip_check(s, s->input_picture[0], s->next_picture_ptr)){
1040
                //FIXME check that te gop check above is +-1 correct
1041
//av_log(NULL, AV_LOG_DEBUG, "skip %p %"PRId64"\n", s->input_picture[0]->data[0], s->input_picture[0]->pts);
1042

    
1043
                    if(s->input_picture[0]->type == FF_BUFFER_TYPE_SHARED){
1044
                        for(i=0; i<4; i++)
1045
                            s->input_picture[0]->data[i]= NULL;
1046
                        s->input_picture[0]->type= 0;
1047
                    }else{
1048
                        assert(   s->input_picture[0]->type==FF_BUFFER_TYPE_USER
1049
                               || s->input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1050

    
1051
                        s->avctx->release_buffer(s->avctx, (AVFrame*)s->input_picture[0]);
1052
                    }
1053

    
1054
                    emms_c();
1055
                    ff_vbv_update(s, 0);
1056

    
1057
                    goto no_output_pic;
1058
                }
1059
            }
1060

    
1061
            if(s->flags&CODEC_FLAG_PASS2){
1062
                for(i=0; i<s->max_b_frames+1; i++){
1063
                    int pict_num= s->input_picture[0]->display_picture_number + i;
1064

    
1065
                    if(pict_num >= s->rc_context.num_entries)
1066
                        break;
1067
                    if(!s->input_picture[i]){
1068
                        s->rc_context.entry[pict_num-1].new_pict_type = FF_P_TYPE;
1069
                        break;
1070
                    }
1071

    
1072
                    s->input_picture[i]->pict_type=
1073
                        s->rc_context.entry[pict_num].new_pict_type;
1074
                }
1075
            }
1076

    
1077
            if(s->avctx->b_frame_strategy==0){
1078
                b_frames= s->max_b_frames;
1079
                while(b_frames && !s->input_picture[b_frames]) b_frames--;
1080
            }else if(s->avctx->b_frame_strategy==1){
1081
                for(i=1; i<s->max_b_frames+1; i++){
1082
                    if(s->input_picture[i] && s->input_picture[i]->b_frame_score==0){
1083
                        s->input_picture[i]->b_frame_score=
1084
                            get_intra_count(s, s->input_picture[i  ]->data[0],
1085
                                               s->input_picture[i-1]->data[0], s->linesize) + 1;
1086
                    }
1087
                }
1088
                for(i=0; i<s->max_b_frames+1; i++){
1089
                    if(s->input_picture[i]==NULL || s->input_picture[i]->b_frame_score - 1 > s->mb_num/s->avctx->b_sensitivity) break;
1090
                }
1091

    
1092
                b_frames= FFMAX(0, i-1);
1093

    
1094
                /* reset scores */
1095
                for(i=0; i<b_frames+1; i++){
1096
                    s->input_picture[i]->b_frame_score=0;
1097
                }
1098
            }else if(s->avctx->b_frame_strategy==2){
1099
                b_frames= estimate_best_b_count(s);
1100
            }else{
1101
                av_log(s->avctx, AV_LOG_ERROR, "illegal b frame strategy\n");
1102
                b_frames=0;
1103
            }
1104

    
1105
            emms_c();
1106
//static int b_count=0;
1107
//b_count+= b_frames;
1108
//av_log(s->avctx, AV_LOG_DEBUG, "b_frames: %d\n", b_count);
1109

    
1110
            for(i= b_frames - 1; i>=0; i--){
1111
                int type= s->input_picture[i]->pict_type;
1112
                if(type && type != FF_B_TYPE)
1113
                    b_frames= i;
1114
            }
1115
            if(s->input_picture[b_frames]->pict_type == FF_B_TYPE && b_frames == s->max_b_frames){
1116
                av_log(s->avctx, AV_LOG_ERROR, "warning, too many b frames in a row\n");
1117
            }
1118

    
1119
            if(s->picture_in_gop_number + b_frames >= s->gop_size){
1120
              if((s->flags2 & CODEC_FLAG2_STRICT_GOP) && s->gop_size > s->picture_in_gop_number){
1121
                    b_frames= s->gop_size - s->picture_in_gop_number - 1;
1122
              }else{
1123
                if(s->flags & CODEC_FLAG_CLOSED_GOP)
1124
                    b_frames=0;
1125
                s->input_picture[b_frames]->pict_type= FF_I_TYPE;
1126
              }
1127
            }
1128

    
1129
            if(   (s->flags & CODEC_FLAG_CLOSED_GOP)
1130
               && b_frames
1131
               && s->input_picture[b_frames]->pict_type== FF_I_TYPE)
1132
                b_frames--;
1133

    
1134
            s->reordered_input_picture[0]= s->input_picture[b_frames];
1135
            if(s->reordered_input_picture[0]->pict_type != FF_I_TYPE)
1136
                s->reordered_input_picture[0]->pict_type= FF_P_TYPE;
1137
            s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1138
            for(i=0; i<b_frames; i++){
1139
                s->reordered_input_picture[i+1]= s->input_picture[i];
1140
                s->reordered_input_picture[i+1]->pict_type= FF_B_TYPE;
1141
                s->reordered_input_picture[i+1]->coded_picture_number= s->coded_picture_number++;
1142
            }
1143
        }
1144
    }
1145
no_output_pic:
1146
    if(s->reordered_input_picture[0]){
1147
        s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=FF_B_TYPE ? 3 : 0;
1148

    
1149
        ff_copy_picture(&s->new_picture, s->reordered_input_picture[0]);
1150

    
1151
        if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_SHARED || s->avctx->rc_buffer_size){
1152
            // input is a shared pix, so we can't modifiy it -> alloc a new one & ensure that the shared one is reuseable
1153

    
1154
            int i= ff_find_unused_picture(s, 0);
1155
            Picture *pic= &s->picture[i];
1156

    
1157
            pic->reference              = s->reordered_input_picture[0]->reference;
1158
            ff_alloc_picture(s, pic, 0);
1159

    
1160
            /* mark us unused / free shared pic */
1161
            if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_INTERNAL)
1162
                s->avctx->release_buffer(s->avctx, (AVFrame*)s->reordered_input_picture[0]);
1163
            for(i=0; i<4; i++)
1164
                s->reordered_input_picture[0]->data[i]= NULL;
1165
            s->reordered_input_picture[0]->type= 0;
1166

    
1167
            copy_picture_attributes(s, (AVFrame*)pic, (AVFrame*)s->reordered_input_picture[0]);
1168

    
1169
            s->current_picture_ptr= pic;
1170
        }else{
1171
            // input is not a shared pix -> reuse buffer for current_pix
1172

    
1173
            assert(   s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
1174
                   || s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1175

    
1176
            s->current_picture_ptr= s->reordered_input_picture[0];
1177
            for(i=0; i<4; i++){
1178
                s->new_picture.data[i]+= INPLACE_OFFSET;
1179
            }
1180
        }
1181
        ff_copy_picture(&s->current_picture, s->current_picture_ptr);
1182

    
1183
        s->picture_number= s->new_picture.display_picture_number;
1184
//printf("dpn:%d\n", s->picture_number);
1185
    }else{
1186
       memset(&s->new_picture, 0, sizeof(Picture));
1187
    }
1188
}
1189

    
1190
int MPV_encode_picture(AVCodecContext *avctx,
1191
                       unsigned char *buf, int buf_size, void *data)
1192
{
1193
    MpegEncContext *s = avctx->priv_data;
1194
    AVFrame *pic_arg = data;
1195
    int i, stuffing_count;
1196

    
1197
    for(i=0; i<avctx->thread_count; i++){
1198
        int start_y= s->thread_context[i]->start_mb_y;
1199
        int   end_y= s->thread_context[i]->  end_mb_y;
1200
        int h= s->mb_height;
1201
        uint8_t *start= buf + (size_t)(((int64_t) buf_size)*start_y/h);
1202
        uint8_t *end  = buf + (size_t)(((int64_t) buf_size)*  end_y/h);
1203

    
1204
        init_put_bits(&s->thread_context[i]->pb, start, end - start);
1205
    }
1206

    
1207
    s->picture_in_gop_number++;
1208

    
1209
    if(load_input_picture(s, pic_arg) < 0)
1210
        return -1;
1211

    
1212
    select_input_picture(s);
1213

    
1214
    /* output? */
1215
    if(s->new_picture.data[0]){
1216
        s->pict_type= s->new_picture.pict_type;
1217
//emms_c();
1218
//printf("qs:%f %f %d\n", s->new_picture.quality, s->current_picture.quality, s->qscale);
1219
        MPV_frame_start(s, avctx);
1220
vbv_retry:
1221
        if (encode_picture(s, s->picture_number) < 0)
1222
            return -1;
1223

    
1224
        avctx->header_bits = s->header_bits;
1225
        avctx->mv_bits     = s->mv_bits;
1226
        avctx->misc_bits   = s->misc_bits;
1227
        avctx->i_tex_bits  = s->i_tex_bits;
1228
        avctx->p_tex_bits  = s->p_tex_bits;
1229
        avctx->i_count     = s->i_count;
1230
        avctx->p_count     = s->mb_num - s->i_count - s->skip_count; //FIXME f/b_count in avctx
1231
        avctx->skip_count  = s->skip_count;
1232

    
1233
        MPV_frame_end(s);
1234

    
1235
        if (CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG)
1236
            ff_mjpeg_encode_picture_trailer(s);
1237

    
1238
        if(avctx->rc_buffer_size){
1239
            RateControlContext *rcc= &s->rc_context;
1240
            int max_size= rcc->buffer_index * avctx->rc_max_available_vbv_use;
1241

    
1242
            if(put_bits_count(&s->pb) > max_size && s->lambda < s->avctx->lmax){
1243
                s->next_lambda= FFMAX(s->lambda+1, s->lambda*(s->qscale+1) / s->qscale);
1244
                if(s->adaptive_quant){
1245
                    int i;
1246
                    for(i=0; i<s->mb_height*s->mb_stride; i++)
1247
                        s->lambda_table[i]= FFMAX(s->lambda_table[i]+1, s->lambda_table[i]*(s->qscale+1) / s->qscale);
1248
                }
1249
                s->mb_skipped = 0;        //done in MPV_frame_start()
1250
                if(s->pict_type==FF_P_TYPE){ //done in encode_picture() so we must undo it
1251
                    if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
1252
                        s->no_rounding ^= 1;
1253
                }
1254
                if(s->pict_type!=FF_B_TYPE){
1255
                    s->time_base= s->last_time_base;
1256
                    s->last_non_b_time= s->time - s->pp_time;
1257
                }
1258
//                av_log(NULL, AV_LOG_ERROR, "R:%d ", s->next_lambda);
1259
                for(i=0; i<avctx->thread_count; i++){
1260
                    PutBitContext *pb= &s->thread_context[i]->pb;
1261
                    init_put_bits(pb, pb->buf, pb->buf_end - pb->buf);
1262
                }
1263
                goto vbv_retry;
1264
            }
1265

    
1266
            assert(s->avctx->rc_max_rate);
1267
        }
1268

    
1269
        if(s->flags&CODEC_FLAG_PASS1)
1270
            ff_write_pass1_stats(s);
1271

    
1272
        for(i=0; i<4; i++){
1273
            s->current_picture_ptr->error[i]= s->current_picture.error[i];
1274
            avctx->error[i] += s->current_picture_ptr->error[i];
1275
        }
1276

    
1277
        if(s->flags&CODEC_FLAG_PASS1)
1278
            assert(avctx->header_bits + avctx->mv_bits + avctx->misc_bits + avctx->i_tex_bits + avctx->p_tex_bits == put_bits_count(&s->pb));
1279
        flush_put_bits(&s->pb);
1280
        s->frame_bits  = put_bits_count(&s->pb);
1281

    
1282
        stuffing_count= ff_vbv_update(s, s->frame_bits);
1283
        if(stuffing_count){
1284
            if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < stuffing_count + 50){
1285
                av_log(s->avctx, AV_LOG_ERROR, "stuffing too large\n");
1286
                return -1;
1287
            }
1288

    
1289
            switch(s->codec_id){
1290
            case CODEC_ID_MPEG1VIDEO:
1291
            case CODEC_ID_MPEG2VIDEO:
1292
                while(stuffing_count--){
1293
                    put_bits(&s->pb, 8, 0);
1294
                }
1295
            break;
1296
            case CODEC_ID_MPEG4:
1297
                put_bits(&s->pb, 16, 0);
1298
                put_bits(&s->pb, 16, 0x1C3);
1299
                stuffing_count -= 4;
1300
                while(stuffing_count--){
1301
                    put_bits(&s->pb, 8, 0xFF);
1302
                }
1303
            break;
1304
            default:
1305
                av_log(s->avctx, AV_LOG_ERROR, "vbv buffer overflow\n");
1306
            }
1307
            flush_put_bits(&s->pb);
1308
            s->frame_bits  = put_bits_count(&s->pb);
1309
        }
1310

    
1311
        /* update mpeg1/2 vbv_delay for CBR */
1312
        if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && s->out_format == FMT_MPEG1
1313
           && 90000LL * (avctx->rc_buffer_size-1) <= s->avctx->rc_max_rate*0xFFFFLL){
1314
            int vbv_delay, min_delay;
1315
            double inbits = s->avctx->rc_max_rate*av_q2d(s->avctx->time_base);
1316
            int    minbits= s->frame_bits - 8*(s->vbv_delay_ptr - s->pb.buf - 1);
1317
            double bits   = s->rc_context.buffer_index + minbits - inbits;
1318

    
1319
            if(bits<0)
1320
                av_log(s->avctx, AV_LOG_ERROR, "Internal error, negative bits\n");
1321

    
1322
            assert(s->repeat_first_field==0);
1323

    
1324
            vbv_delay=     bits * 90000                               / s->avctx->rc_max_rate;
1325
            min_delay= (minbits * 90000LL + s->avctx->rc_max_rate - 1)/ s->avctx->rc_max_rate;
1326

    
1327
            vbv_delay= FFMAX(vbv_delay, min_delay);
1328

    
1329
            assert(vbv_delay < 0xFFFF);
1330

    
1331
            s->vbv_delay_ptr[0] &= 0xF8;
1332
            s->vbv_delay_ptr[0] |= vbv_delay>>13;
1333
            s->vbv_delay_ptr[1]  = vbv_delay>>5;
1334
            s->vbv_delay_ptr[2] &= 0x07;
1335
            s->vbv_delay_ptr[2] |= vbv_delay<<3;
1336
        }
1337
        s->total_bits += s->frame_bits;
1338
        avctx->frame_bits  = s->frame_bits;
1339
    }else{
1340
        assert((put_bits_ptr(&s->pb) == s->pb.buf));
1341
        s->frame_bits=0;
1342
    }
1343
    assert((s->frame_bits&7)==0);
1344

    
1345
    return s->frame_bits/8;
1346
}
1347

    
1348
static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold)
1349
{
1350
    static const char tab[64]=
1351
        {3,2,2,1,1,1,1,1,
1352
         1,1,1,1,1,1,1,1,
1353
         1,1,1,1,1,1,1,1,
1354
         0,0,0,0,0,0,0,0,
1355
         0,0,0,0,0,0,0,0,
1356
         0,0,0,0,0,0,0,0,
1357
         0,0,0,0,0,0,0,0,
1358
         0,0,0,0,0,0,0,0};
1359
    int score=0;
1360
    int run=0;
1361
    int i;
1362
    DCTELEM *block= s->block[n];
1363
    const int last_index= s->block_last_index[n];
1364
    int skip_dc;
1365

    
1366
    if(threshold<0){
1367
        skip_dc=0;
1368
        threshold= -threshold;
1369
    }else
1370
        skip_dc=1;
1371

    
1372
    /* Are all we could set to zero already zero? */
1373
    if(last_index<=skip_dc - 1) return;
1374

    
1375
    for(i=0; i<=last_index; i++){
1376
        const int j = s->intra_scantable.permutated[i];
1377
        const int level = FFABS(block[j]);
1378
        if(level==1){
1379
            if(skip_dc && i==0) continue;
1380
            score+= tab[run];
1381
            run=0;
1382
        }else if(level>1){
1383
            return;
1384
        }else{
1385
            run++;
1386
        }
1387
    }
1388
    if(score >= threshold) return;
1389
    for(i=skip_dc; i<=last_index; i++){
1390
        const int j = s->intra_scantable.permutated[i];
1391
        block[j]=0;
1392
    }
1393
    if(block[0]) s->block_last_index[n]= 0;
1394
    else         s->block_last_index[n]= -1;
1395
}
1396

    
1397
static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1398
{
1399
    int i;
1400
    const int maxlevel= s->max_qcoeff;
1401
    const int minlevel= s->min_qcoeff;
1402
    int overflow=0;
1403

    
1404
    if(s->mb_intra){
1405
        i=1; //skip clipping of intra dc
1406
    }else
1407
        i=0;
1408

    
1409
    for(;i<=last_index; i++){
1410
        const int j= s->intra_scantable.permutated[i];
1411
        int level = block[j];
1412

    
1413
        if     (level>maxlevel){
1414
            level=maxlevel;
1415
            overflow++;
1416
        }else if(level<minlevel){
1417
            level=minlevel;
1418
            overflow++;
1419
        }
1420

    
1421
        block[j]= level;
1422
    }
1423

    
1424
    if(overflow && s->avctx->mb_decision == FF_MB_DECISION_SIMPLE)
1425
        av_log(s->avctx, AV_LOG_INFO, "warning, clipping %d dct coefficients to %d..%d\n", overflow, minlevel, maxlevel);
1426
}
1427

    
1428
static void get_visual_weight(int16_t *weight, uint8_t *ptr, int stride){
1429
    int x, y;
1430
//FIXME optimize
1431
    for(y=0; y<8; y++){
1432
        for(x=0; x<8; x++){
1433
            int x2, y2;
1434
            int sum=0;
1435
            int sqr=0;
1436
            int count=0;
1437

    
1438
            for(y2= FFMAX(y-1, 0); y2 < FFMIN(8, y+2); y2++){
1439
                for(x2= FFMAX(x-1, 0); x2 < FFMIN(8, x+2); x2++){
1440
                    int v= ptr[x2 + y2*stride];
1441
                    sum += v;
1442
                    sqr += v*v;
1443
                    count++;
1444
                }
1445
            }
1446
            weight[x + 8*y]= (36*ff_sqrt(count*sqr - sum*sum)) / count;
1447
        }
1448
    }
1449
}
1450

    
1451
static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count)
1452
{
1453
    int16_t weight[8][64];
1454
    DCTELEM orig[8][64];
1455
    const int mb_x= s->mb_x;
1456
    const int mb_y= s->mb_y;
1457
    int i;
1458
    int skip_dct[8];
1459
    int dct_offset   = s->linesize*8; //default for progressive frames
1460
    uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1461
    int wrap_y, wrap_c;
1462

    
1463
    for(i=0; i<mb_block_count; i++) skip_dct[i]=s->skipdct;
1464

    
1465
    if(s->adaptive_quant){
1466
        const int last_qp= s->qscale;
1467
        const int mb_xy= mb_x + mb_y*s->mb_stride;
1468

    
1469
        s->lambda= s->lambda_table[mb_xy];
1470
        update_qscale(s);
1471

    
1472
        if(!(s->flags&CODEC_FLAG_QP_RD)){
1473
            s->qscale= s->current_picture_ptr->qscale_table[mb_xy];
1474
            s->dquant= s->qscale - last_qp;
1475

    
1476
            if(s->out_format==FMT_H263){
1477
                s->dquant= av_clip(s->dquant, -2, 2);
1478

    
1479
                if(s->codec_id==CODEC_ID_MPEG4){
1480
                    if(!s->mb_intra){
1481
                        if(s->pict_type == FF_B_TYPE){
1482
                            if(s->dquant&1 || s->mv_dir&MV_DIRECT)
1483
                                s->dquant= 0;
1484
                        }
1485
                        if(s->mv_type==MV_TYPE_8X8)
1486
                            s->dquant=0;
1487
                    }
1488
                }
1489
            }
1490
        }
1491
        ff_set_qscale(s, last_qp + s->dquant);
1492
    }else if(s->flags&CODEC_FLAG_QP_RD)
1493
        ff_set_qscale(s, s->qscale + s->dquant);
1494

    
1495
    wrap_y = s->linesize;
1496
    wrap_c = s->uvlinesize;
1497
    ptr_y = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
1498
    ptr_cb = s->new_picture.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1499
    ptr_cr = s->new_picture.data[2] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1500

    
1501
    if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
1502
        uint8_t *ebuf= s->edge_emu_buffer + 32;
1503
        ff_emulated_edge_mc(ebuf            , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width   , s->height);
1504
        ptr_y= ebuf;
1505
        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);
1506
        ptr_cb= ebuf+18*wrap_y;
1507
        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);
1508
        ptr_cr= ebuf+18*wrap_y+8;
1509
    }
1510

    
1511
    if (s->mb_intra) {
1512
        if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1513
            int progressive_score, interlaced_score;
1514

    
1515
            s->interlaced_dct=0;
1516
            progressive_score= s->dsp.ildct_cmp[4](s, ptr_y           , NULL, wrap_y, 8)
1517
                              +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y*8, NULL, wrap_y, 8) - 400;
1518

    
1519
            if(progressive_score > 0){
1520
                interlaced_score = s->dsp.ildct_cmp[4](s, ptr_y           , NULL, wrap_y*2, 8)
1521
                                  +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y  , NULL, wrap_y*2, 8);
1522
                if(progressive_score > interlaced_score){
1523
                    s->interlaced_dct=1;
1524

    
1525
                    dct_offset= wrap_y;
1526
                    wrap_y<<=1;
1527
                    if (s->chroma_format == CHROMA_422)
1528
                        wrap_c<<=1;
1529
                }
1530
            }
1531
        }
1532

    
1533
        s->dsp.get_pixels(s->block[0], ptr_y                 , wrap_y);
1534
        s->dsp.get_pixels(s->block[1], ptr_y              + 8, wrap_y);
1535
        s->dsp.get_pixels(s->block[2], ptr_y + dct_offset    , wrap_y);
1536
        s->dsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y);
1537

    
1538
        if(s->flags&CODEC_FLAG_GRAY){
1539
            skip_dct[4]= 1;
1540
            skip_dct[5]= 1;
1541
        }else{
1542
            s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c);
1543
            s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c);
1544
            if(!s->chroma_y_shift){ /* 422 */
1545
                s->dsp.get_pixels(s->block[6], ptr_cb + (dct_offset>>1), wrap_c);
1546
                s->dsp.get_pixels(s->block[7], ptr_cr + (dct_offset>>1), wrap_c);
1547
            }
1548
        }
1549
    }else{
1550
        op_pixels_func (*op_pix)[4];
1551
        qpel_mc_func (*op_qpix)[16];
1552
        uint8_t *dest_y, *dest_cb, *dest_cr;
1553

    
1554
        dest_y  = s->dest[0];
1555
        dest_cb = s->dest[1];
1556
        dest_cr = s->dest[2];
1557

    
1558
        if ((!s->no_rounding) || s->pict_type==FF_B_TYPE){
1559
            op_pix = s->dsp.put_pixels_tab;
1560
            op_qpix= s->dsp.put_qpel_pixels_tab;
1561
        }else{
1562
            op_pix = s->dsp.put_no_rnd_pixels_tab;
1563
            op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab;
1564
        }
1565

    
1566
        if (s->mv_dir & MV_DIR_FORWARD) {
1567
            MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix);
1568
            op_pix = s->dsp.avg_pixels_tab;
1569
            op_qpix= s->dsp.avg_qpel_pixels_tab;
1570
        }
1571
        if (s->mv_dir & MV_DIR_BACKWARD) {
1572
            MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix);
1573
        }
1574

    
1575
        if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1576
            int progressive_score, interlaced_score;
1577

    
1578
            s->interlaced_dct=0;
1579
            progressive_score= s->dsp.ildct_cmp[0](s, dest_y           , ptr_y           , wrap_y, 8)
1580
                              +s->dsp.ildct_cmp[0](s, dest_y + wrap_y*8, ptr_y + wrap_y*8, wrap_y, 8) - 400;
1581

    
1582
            if(s->avctx->ildct_cmp == FF_CMP_VSSE) progressive_score -= 400;
1583

    
1584
            if(progressive_score>0){
1585
                interlaced_score = s->dsp.ildct_cmp[0](s, dest_y           , ptr_y           , wrap_y*2, 8)
1586
                                  +s->dsp.ildct_cmp[0](s, dest_y + wrap_y  , ptr_y + wrap_y  , wrap_y*2, 8);
1587

    
1588
                if(progressive_score > interlaced_score){
1589
                    s->interlaced_dct=1;
1590

    
1591
                    dct_offset= wrap_y;
1592
                    wrap_y<<=1;
1593
                    if (s->chroma_format == CHROMA_422)
1594
                        wrap_c<<=1;
1595
                }
1596
            }
1597
        }
1598

    
1599
        s->dsp.diff_pixels(s->block[0], ptr_y                 , dest_y                 , wrap_y);
1600
        s->dsp.diff_pixels(s->block[1], ptr_y              + 8, dest_y              + 8, wrap_y);
1601
        s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset    , dest_y + dct_offset    , wrap_y);
1602
        s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y);
1603

    
1604
        if(s->flags&CODEC_FLAG_GRAY){
1605
            skip_dct[4]= 1;
1606
            skip_dct[5]= 1;
1607
        }else{
1608
            s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
1609
            s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
1610
            if(!s->chroma_y_shift){ /* 422 */
1611
                s->dsp.diff_pixels(s->block[6], ptr_cb + (dct_offset>>1), dest_cb + (dct_offset>>1), wrap_c);
1612
                s->dsp.diff_pixels(s->block[7], ptr_cr + (dct_offset>>1), dest_cr + (dct_offset>>1), wrap_c);
1613
            }
1614
        }
1615
        /* pre quantization */
1616
        if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){
1617
            //FIXME optimize
1618
            if(s->dsp.sad[1](NULL, ptr_y               , dest_y               , wrap_y, 8) < 20*s->qscale) skip_dct[0]= 1;
1619
            if(s->dsp.sad[1](NULL, ptr_y            + 8, dest_y            + 8, wrap_y, 8) < 20*s->qscale) skip_dct[1]= 1;
1620
            if(s->dsp.sad[1](NULL, ptr_y +dct_offset   , dest_y +dct_offset   , wrap_y, 8) < 20*s->qscale) skip_dct[2]= 1;
1621
            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;
1622
            if(s->dsp.sad[1](NULL, ptr_cb              , dest_cb              , wrap_c, 8) < 20*s->qscale) skip_dct[4]= 1;
1623
            if(s->dsp.sad[1](NULL, ptr_cr              , dest_cr              , wrap_c, 8) < 20*s->qscale) skip_dct[5]= 1;
1624
            if(!s->chroma_y_shift){ /* 422 */
1625
                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;
1626
                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;
1627
            }
1628
        }
1629
    }
1630

    
1631
    if(s->avctx->quantizer_noise_shaping){
1632
        if(!skip_dct[0]) get_visual_weight(weight[0], ptr_y                 , wrap_y);
1633
        if(!skip_dct[1]) get_visual_weight(weight[1], ptr_y              + 8, wrap_y);
1634
        if(!skip_dct[2]) get_visual_weight(weight[2], ptr_y + dct_offset    , wrap_y);
1635
        if(!skip_dct[3]) get_visual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y);
1636
        if(!skip_dct[4]) get_visual_weight(weight[4], ptr_cb                , wrap_c);
1637
        if(!skip_dct[5]) get_visual_weight(weight[5], ptr_cr                , wrap_c);
1638
        if(!s->chroma_y_shift){ /* 422 */
1639
            if(!skip_dct[6]) get_visual_weight(weight[6], ptr_cb + (dct_offset>>1), wrap_c);
1640
            if(!skip_dct[7]) get_visual_weight(weight[7], ptr_cr + (dct_offset>>1), wrap_c);
1641
        }
1642
        memcpy(orig[0], s->block[0], sizeof(DCTELEM)*64*mb_block_count);
1643
    }
1644

    
1645
    /* DCT & quantize */
1646
    assert(s->out_format!=FMT_MJPEG || s->qscale==8);
1647
    {
1648
        for(i=0;i<mb_block_count;i++) {
1649
            if(!skip_dct[i]){
1650
                int overflow;
1651
                s->block_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow);
1652
            // FIXME we could decide to change to quantizer instead of clipping
1653
            // JS: I don't think that would be a good idea it could lower quality instead
1654
            //     of improve it. Just INTRADC clipping deserves changes in quantizer
1655
                if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1656
            }else
1657
                s->block_last_index[i]= -1;
1658
        }
1659
        if(s->avctx->quantizer_noise_shaping){
1660
            for(i=0;i<mb_block_count;i++) {
1661
                if(!skip_dct[i]){
1662
                    s->block_last_index[i] = dct_quantize_refine(s, s->block[i], weight[i], orig[i], i, s->qscale);
1663
                }
1664
            }
1665
        }
1666

    
1667
        if(s->luma_elim_threshold && !s->mb_intra)
1668
            for(i=0; i<4; i++)
1669
                dct_single_coeff_elimination(s, i, s->luma_elim_threshold);
1670
        if(s->chroma_elim_threshold && !s->mb_intra)
1671
            for(i=4; i<mb_block_count; i++)
1672
                dct_single_coeff_elimination(s, i, s->chroma_elim_threshold);
1673

    
1674
        if(s->flags & CODEC_FLAG_CBP_RD){
1675
            for(i=0;i<mb_block_count;i++) {
1676
                if(s->block_last_index[i] == -1)
1677
                    s->coded_score[i]= INT_MAX/256;
1678
            }
1679
        }
1680
    }
1681

    
1682
    if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
1683
        s->block_last_index[4]=
1684
        s->block_last_index[5]= 0;
1685
        s->block[4][0]=
1686
        s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale;
1687
    }
1688

    
1689
    //non c quantize code returns incorrect block_last_index FIXME
1690
    if(s->alternate_scan && s->dct_quantize != dct_quantize_c){
1691
        for(i=0; i<mb_block_count; i++){
1692
            int j;
1693
            if(s->block_last_index[i]>0){
1694
                for(j=63; j>0; j--){
1695
                    if(s->block[i][ s->intra_scantable.permutated[j] ]) break;
1696
                }
1697
                s->block_last_index[i]= j;
1698
            }
1699
        }
1700
    }
1701

    
1702
    /* huffman encode */
1703
    switch(s->codec_id){ //FIXME funct ptr could be slightly faster
1704
    case CODEC_ID_MPEG1VIDEO:
1705
    case CODEC_ID_MPEG2VIDEO:
1706
        if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
1707
            mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1708
        break;
1709
    case CODEC_ID_MPEG4:
1710
        if (CONFIG_MPEG4_ENCODER)
1711
            mpeg4_encode_mb(s, s->block, motion_x, motion_y);
1712
        break;
1713
    case CODEC_ID_MSMPEG4V2:
1714
    case CODEC_ID_MSMPEG4V3:
1715
    case CODEC_ID_WMV1:
1716
        if (CONFIG_MSMPEG4_ENCODER)
1717
            msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1718
        break;
1719
    case CODEC_ID_WMV2:
1720
        if (CONFIG_WMV2_ENCODER)
1721
            ff_wmv2_encode_mb(s, s->block, motion_x, motion_y);
1722
        break;
1723
    case CODEC_ID_H261:
1724
        if (CONFIG_H261_ENCODER)
1725
            ff_h261_encode_mb(s, s->block, motion_x, motion_y);
1726
        break;
1727
    case CODEC_ID_H263:
1728
    case CODEC_ID_H263P:
1729
    case CODEC_ID_FLV1:
1730
    case CODEC_ID_RV10:
1731
    case CODEC_ID_RV20:
1732
        if (CONFIG_H263_ENCODER)
1733
            h263_encode_mb(s, s->block, motion_x, motion_y);
1734
        break;
1735
    case CODEC_ID_MJPEG:
1736
        if (CONFIG_MJPEG_ENCODER)
1737
            ff_mjpeg_encode_mb(s, s->block);
1738
        break;
1739
    default:
1740
        assert(0);
1741
    }
1742
}
1743

    
1744
static av_always_inline void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
1745
{
1746
    if (s->chroma_format == CHROMA_420) encode_mb_internal(s, motion_x, motion_y,  8, 6);
1747
    else                                encode_mb_internal(s, motion_x, motion_y, 16, 8);
1748
}
1749

    
1750
static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1751
    int i;
1752

    
1753
    memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1754

    
1755
    /* mpeg1 */
1756
    d->mb_skip_run= s->mb_skip_run;
1757
    for(i=0; i<3; i++)
1758
        d->last_dc[i]= s->last_dc[i];
1759

    
1760
    /* statistics */
1761
    d->mv_bits= s->mv_bits;
1762
    d->i_tex_bits= s->i_tex_bits;
1763
    d->p_tex_bits= s->p_tex_bits;
1764
    d->i_count= s->i_count;
1765
    d->f_count= s->f_count;
1766
    d->b_count= s->b_count;
1767
    d->skip_count= s->skip_count;
1768
    d->misc_bits= s->misc_bits;
1769
    d->last_bits= 0;
1770

    
1771
    d->mb_skipped= 0;
1772
    d->qscale= s->qscale;
1773
    d->dquant= s->dquant;
1774

    
1775
    d->esc3_level_length= s->esc3_level_length;
1776
}
1777

    
1778
static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1779
    int i;
1780

    
1781
    memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
1782
    memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1783

    
1784
    /* mpeg1 */
1785
    d->mb_skip_run= s->mb_skip_run;
1786
    for(i=0; i<3; i++)
1787
        d->last_dc[i]= s->last_dc[i];
1788

    
1789
    /* statistics */
1790
    d->mv_bits= s->mv_bits;
1791
    d->i_tex_bits= s->i_tex_bits;
1792
    d->p_tex_bits= s->p_tex_bits;
1793
    d->i_count= s->i_count;
1794
    d->f_count= s->f_count;
1795
    d->b_count= s->b_count;
1796
    d->skip_count= s->skip_count;
1797
    d->misc_bits= s->misc_bits;
1798

    
1799
    d->mb_intra= s->mb_intra;
1800
    d->mb_skipped= s->mb_skipped;
1801
    d->mv_type= s->mv_type;
1802
    d->mv_dir= s->mv_dir;
1803
    d->pb= s->pb;
1804
    if(s->data_partitioning){
1805
        d->pb2= s->pb2;
1806
        d->tex_pb= s->tex_pb;
1807
    }
1808
    d->block= s->block;
1809
    for(i=0; i<8; i++)
1810
        d->block_last_index[i]= s->block_last_index[i];
1811
    d->interlaced_dct= s->interlaced_dct;
1812
    d->qscale= s->qscale;
1813

    
1814
    d->esc3_level_length= s->esc3_level_length;
1815
}
1816

    
1817
static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type,
1818
                           PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
1819
                           int *dmin, int *next_block, int motion_x, int motion_y)
1820
{
1821
    int score;
1822
    uint8_t *dest_backup[3];
1823

    
1824
    copy_context_before_encode(s, backup, type);
1825

    
1826
    s->block= s->blocks[*next_block];
1827
    s->pb= pb[*next_block];
1828
    if(s->data_partitioning){
1829
        s->pb2   = pb2   [*next_block];
1830
        s->tex_pb= tex_pb[*next_block];
1831
    }
1832

    
1833
    if(*next_block){
1834
        memcpy(dest_backup, s->dest, sizeof(s->dest));
1835
        s->dest[0] = s->rd_scratchpad;
1836
        s->dest[1] = s->rd_scratchpad + 16*s->linesize;
1837
        s->dest[2] = s->rd_scratchpad + 16*s->linesize + 8;
1838
        assert(s->linesize >= 32); //FIXME
1839
    }
1840

    
1841
    encode_mb(s, motion_x, motion_y);
1842

    
1843
    score= put_bits_count(&s->pb);
1844
    if(s->data_partitioning){
1845
        score+= put_bits_count(&s->pb2);
1846
        score+= put_bits_count(&s->tex_pb);
1847
    }
1848

    
1849
    if(s->avctx->mb_decision == FF_MB_DECISION_RD){
1850
        MPV_decode_mb(s, s->block);
1851

    
1852
        score *= s->lambda2;
1853
        score += sse_mb(s) << FF_LAMBDA_SHIFT;
1854
    }
1855

    
1856
    if(*next_block){
1857
        memcpy(s->dest, dest_backup, sizeof(s->dest));
1858
    }
1859

    
1860
    if(score<*dmin){
1861
        *dmin= score;
1862
        *next_block^=1;
1863

    
1864
        copy_context_after_encode(best, s, type);
1865
    }
1866
}
1867

    
1868
static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){
1869
    uint32_t *sq = ff_squareTbl + 256;
1870
    int acc=0;
1871
    int x,y;
1872

    
1873
    if(w==16 && h==16)
1874
        return s->dsp.sse[0](NULL, src1, src2, stride, 16);
1875
    else if(w==8 && h==8)
1876
        return s->dsp.sse[1](NULL, src1, src2, stride, 8);
1877

    
1878
    for(y=0; y<h; y++){
1879
        for(x=0; x<w; x++){
1880
            acc+= sq[src1[x + y*stride] - src2[x + y*stride]];
1881
        }
1882
    }
1883

    
1884
    assert(acc>=0);
1885

    
1886
    return acc;
1887
}
1888

    
1889
static int sse_mb(MpegEncContext *s){
1890
    int w= 16;
1891
    int h= 16;
1892

    
1893
    if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
1894
    if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
1895

    
1896
    if(w==16 && h==16)
1897
      if(s->avctx->mb_cmp == FF_CMP_NSSE){
1898
        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)
1899
               +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)
1900
               +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);
1901
      }else{
1902
        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)
1903
               +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)
1904
               +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);
1905
      }
1906
    else
1907
        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)
1908
               +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)
1909
               +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);
1910
}
1911

    
1912
static int pre_estimate_motion_thread(AVCodecContext *c, void *arg){
1913
    MpegEncContext *s= *(void**)arg;
1914

    
1915

    
1916
    s->me.pre_pass=1;
1917
    s->me.dia_size= s->avctx->pre_dia_size;
1918
    s->first_slice_line=1;
1919
    for(s->mb_y= s->end_mb_y-1; s->mb_y >= s->start_mb_y; s->mb_y--) {
1920
        for(s->mb_x=s->mb_width-1; s->mb_x >=0 ;s->mb_x--) {
1921
            ff_pre_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1922
        }
1923
        s->first_slice_line=0;
1924
    }
1925

    
1926
    s->me.pre_pass=0;
1927

    
1928
    return 0;
1929
}
1930

    
1931
static int estimate_motion_thread(AVCodecContext *c, void *arg){
1932
    MpegEncContext *s= *(void**)arg;
1933

    
1934
    ff_check_alignment();
1935

    
1936
    s->me.dia_size= s->avctx->dia_size;
1937
    s->first_slice_line=1;
1938
    for(s->mb_y= s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
1939
        s->mb_x=0; //for block init below
1940
        ff_init_block_index(s);
1941
        for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {
1942
            s->block_index[0]+=2;
1943
            s->block_index[1]+=2;
1944
            s->block_index[2]+=2;
1945
            s->block_index[3]+=2;
1946

    
1947
            /* compute motion vector & mb_type and store in context */
1948
            if(s->pict_type==FF_B_TYPE)
1949
                ff_estimate_b_frame_motion(s, s->mb_x, s->mb_y);
1950
            else
1951
                ff_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1952
        }
1953
        s->first_slice_line=0;
1954
    }
1955
    return 0;
1956
}
1957

    
1958
static int mb_var_thread(AVCodecContext *c, void *arg){
1959
    MpegEncContext *s= *(void**)arg;
1960
    int mb_x, mb_y;
1961

    
1962
    ff_check_alignment();
1963

    
1964
    for(mb_y=s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
1965
        for(mb_x=0; mb_x < s->mb_width; mb_x++) {
1966
            int xx = mb_x * 16;
1967
            int yy = mb_y * 16;
1968
            uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
1969
            int varc;
1970
            int sum = s->dsp.pix_sum(pix, s->linesize);
1971

    
1972
            varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
1973

    
1974
            s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
1975
            s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
1976
            s->me.mb_var_sum_temp    += varc;
1977
        }
1978
    }
1979
    return 0;
1980
}
1981

    
1982
static void write_slice_end(MpegEncContext *s){
1983
    if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4){
1984
        if(s->partitioned_frame){
1985
            ff_mpeg4_merge_partitions(s);
1986
        }
1987

    
1988
        ff_mpeg4_stuffing(&s->pb);
1989
    }else if(CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG){
1990
        ff_mjpeg_encode_stuffing(&s->pb);
1991
    }
1992

    
1993
    align_put_bits(&s->pb);
1994
    flush_put_bits(&s->pb);
1995

    
1996
    if((s->flags&CODEC_FLAG_PASS1) && !s->partitioned_frame)
1997
        s->misc_bits+= get_bits_diff(s);
1998
}
1999

    
2000
static int encode_thread(AVCodecContext *c, void *arg){
2001
    MpegEncContext *s= *(void**)arg;
2002
    int mb_x, mb_y, pdif = 0;
2003
    int chr_h= 16>>s->chroma_y_shift;
2004
    int i, j;
2005
    MpegEncContext best_s, backup_s;
2006
    uint8_t bit_buf[2][MAX_MB_BYTES];
2007
    uint8_t bit_buf2[2][MAX_MB_BYTES];
2008
    uint8_t bit_buf_tex[2][MAX_MB_BYTES];
2009
    PutBitContext pb[2], pb2[2], tex_pb[2];
2010
//printf("%d->%d\n", s->resync_mb_y, s->end_mb_y);
2011

    
2012
    ff_check_alignment();
2013

    
2014
    for(i=0; i<2; i++){
2015
        init_put_bits(&pb    [i], bit_buf    [i], MAX_MB_BYTES);
2016
        init_put_bits(&pb2   [i], bit_buf2   [i], MAX_MB_BYTES);
2017
        init_put_bits(&tex_pb[i], bit_buf_tex[i], MAX_MB_BYTES);
2018
    }
2019

    
2020
    s->last_bits= put_bits_count(&s->pb);
2021
    s->mv_bits=0;
2022
    s->misc_bits=0;
2023
    s->i_tex_bits=0;
2024
    s->p_tex_bits=0;
2025
    s->i_count=0;
2026
    s->f_count=0;
2027
    s->b_count=0;
2028
    s->skip_count=0;
2029

    
2030
    for(i=0; i<3; i++){
2031
        /* init last dc values */
2032
        /* note: quant matrix value (8) is implied here */
2033
        s->last_dc[i] = 128 << s->intra_dc_precision;
2034

    
2035
        s->current_picture.error[i] = 0;
2036
    }
2037
    s->mb_skip_run = 0;
2038
    memset(s->last_mv, 0, sizeof(s->last_mv));
2039

    
2040
    s->last_mv_dir = 0;
2041

    
2042
    switch(s->codec_id){
2043
    case CODEC_ID_H263:
2044
    case CODEC_ID_H263P:
2045
    case CODEC_ID_FLV1:
2046
        if (CONFIG_H263_ENCODER)
2047
            s->gob_index = ff_h263_get_gob_height(s);
2048
        break;
2049
    case CODEC_ID_MPEG4:
2050
        if(CONFIG_MPEG4_ENCODER && s->partitioned_frame)
2051
            ff_mpeg4_init_partitions(s);
2052
        break;
2053
    }
2054

    
2055
    s->resync_mb_x=0;
2056
    s->resync_mb_y=0;
2057
    s->first_slice_line = 1;
2058
    s->ptr_lastgob = s->pb.buf;
2059
    for(mb_y= s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2060
//    printf("row %d at %X\n", s->mb_y, (int)s);
2061
        s->mb_x=0;
2062
        s->mb_y= mb_y;
2063

    
2064
        ff_set_qscale(s, s->qscale);
2065
        ff_init_block_index(s);
2066

    
2067
        for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2068
            int xy= mb_y*s->mb_stride + mb_x; // removed const, H261 needs to adjust this
2069
            int mb_type= s->mb_type[xy];
2070
//            int d;
2071
            int dmin= INT_MAX;
2072
            int dir;
2073

    
2074
            if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < MAX_MB_BYTES){
2075
                av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2076
                return -1;
2077
            }
2078
            if(s->data_partitioning){
2079
                if(   s->pb2   .buf_end - s->pb2   .buf - (put_bits_count(&s->    pb2)>>3) < MAX_MB_BYTES
2080
                   || s->tex_pb.buf_end - s->tex_pb.buf - (put_bits_count(&s->tex_pb )>>3) < MAX_MB_BYTES){
2081
                    av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2082
                    return -1;
2083
                }
2084
            }
2085

    
2086
            s->mb_x = mb_x;
2087
            s->mb_y = mb_y;  // moved into loop, can get changed by H.261
2088
            ff_update_block_index(s);
2089

    
2090
            if(CONFIG_H261_ENCODER && s->codec_id == CODEC_ID_H261){
2091
                ff_h261_reorder_mb_index(s);
2092
                xy= s->mb_y*s->mb_stride + s->mb_x;
2093
                mb_type= s->mb_type[xy];
2094
            }
2095

    
2096
            /* write gob / video packet header  */
2097
            if(s->rtp_mode){
2098
                int current_packet_size, is_gob_start;
2099

    
2100
                current_packet_size= ((put_bits_count(&s->pb)+7)>>3) - (s->ptr_lastgob - s->pb.buf);
2101

    
2102
                is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0;
2103

    
2104
                if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1;
2105

    
2106
                switch(s->codec_id){
2107
                case CODEC_ID_H263:
2108
                case CODEC_ID_H263P:
2109
                    if(!s->h263_slice_structured)
2110
                        if(s->mb_x || s->mb_y%s->gob_index) is_gob_start=0;
2111
                    break;
2112
                case CODEC_ID_MPEG2VIDEO:
2113
                    if(s->mb_x==0 && s->mb_y!=0) is_gob_start=1;
2114
                case CODEC_ID_MPEG1VIDEO:
2115
                    if(s->mb_skip_run) is_gob_start=0;
2116
                    break;
2117
                }
2118

    
2119
                if(is_gob_start){
2120
                    if(s->start_mb_y != mb_y || mb_x!=0){
2121
                        write_slice_end(s);
2122

    
2123
                        if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){
2124
                            ff_mpeg4_init_partitions(s);
2125
                        }
2126
                    }
2127

    
2128
                    assert((put_bits_count(&s->pb)&7) == 0);
2129
                    current_packet_size= put_bits_ptr(&s->pb) - s->ptr_lastgob;
2130

    
2131
                    if(s->avctx->error_rate && s->resync_mb_x + s->resync_mb_y > 0){
2132
                        int r= put_bits_count(&s->pb)/8 + s->picture_number + 16 + s->mb_x + s->mb_y;
2133
                        int d= 100 / s->avctx->error_rate;
2134
                        if(r % d == 0){
2135
                            current_packet_size=0;
2136
#ifndef ALT_BITSTREAM_WRITER
2137
                            s->pb.buf_ptr= s->ptr_lastgob;
2138
#endif
2139
                            assert(put_bits_ptr(&s->pb) == s->ptr_lastgob);
2140
                        }
2141
                    }
2142

    
2143
                    if (s->avctx->rtp_callback){
2144
                        int number_mb = (mb_y - s->resync_mb_y)*s->mb_width + mb_x - s->resync_mb_x;
2145
                        s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, current_packet_size, number_mb);
2146
                    }
2147

    
2148
                    switch(s->codec_id){
2149
                    case CODEC_ID_MPEG4:
2150
                        if (CONFIG_MPEG4_ENCODER) {
2151
                            ff_mpeg4_encode_video_packet_header(s);
2152
                            ff_mpeg4_clean_buffers(s);
2153
                        }
2154
                    break;
2155
                    case CODEC_ID_MPEG1VIDEO:
2156
                    case CODEC_ID_MPEG2VIDEO:
2157
                        if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) {
2158
                            ff_mpeg1_encode_slice_header(s);
2159
                            ff_mpeg1_clean_buffers(s);
2160
                        }
2161
                    break;
2162
                    case CODEC_ID_H263:
2163
                    case CODEC_ID_H263P:
2164
                        if (CONFIG_H263_ENCODER)
2165
                            h263_encode_gob_header(s, mb_y);
2166
                    break;
2167
                    }
2168

    
2169
                    if(s->flags&CODEC_FLAG_PASS1){
2170
                        int bits= put_bits_count(&s->pb);
2171
                        s->misc_bits+= bits - s->last_bits;
2172
                        s->last_bits= bits;
2173
                    }
2174

    
2175
                    s->ptr_lastgob += current_packet_size;
2176
                    s->first_slice_line=1;
2177
                    s->resync_mb_x=mb_x;
2178
                    s->resync_mb_y=mb_y;
2179
                }
2180
            }
2181

    
2182
            if(  (s->resync_mb_x   == s->mb_x)
2183
               && s->resync_mb_y+1 == s->mb_y){
2184
                s->first_slice_line=0;
2185
            }
2186

    
2187
            s->mb_skipped=0;
2188
            s->dquant=0; //only for QP_RD
2189

    
2190
            if(mb_type & (mb_type-1) || (s->flags & CODEC_FLAG_QP_RD)){ // more than 1 MB type possible or CODEC_FLAG_QP_RD
2191
                int next_block=0;
2192
                int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
2193

    
2194
                copy_context_before_encode(&backup_s, s, -1);
2195
                backup_s.pb= s->pb;
2196
                best_s.data_partitioning= s->data_partitioning;
2197
                best_s.partitioned_frame= s->partitioned_frame;
2198
                if(s->data_partitioning){
2199
                    backup_s.pb2= s->pb2;
2200
                    backup_s.tex_pb= s->tex_pb;
2201
                }
2202

    
2203
                if(mb_type&CANDIDATE_MB_TYPE_INTER){
2204
                    s->mv_dir = MV_DIR_FORWARD;
2205
                    s->mv_type = MV_TYPE_16X16;
2206
                    s->mb_intra= 0;
2207
                    s->mv[0][0][0] = s->p_mv_table[xy][0];
2208
                    s->mv[0][0][1] = s->p_mv_table[xy][1];
2209
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER, pb, pb2, tex_pb,
2210
                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2211
                }
2212
                if(mb_type&CANDIDATE_MB_TYPE_INTER_I){
2213
                    s->mv_dir = MV_DIR_FORWARD;
2214
                    s->mv_type = MV_TYPE_FIELD;
2215
                    s->mb_intra= 0;
2216
                    for(i=0; i<2; i++){
2217
                        j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2218
                        s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2219
                        s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2220
                    }
2221
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER_I, pb, pb2, tex_pb,
2222
                                 &dmin, &next_block, 0, 0);
2223
                }
2224
                if(mb_type&CANDIDATE_MB_TYPE_SKIPPED){
2225
                    s->mv_dir = MV_DIR_FORWARD;
2226
                    s->mv_type = MV_TYPE_16X16;
2227
                    s->mb_intra= 0;
2228
                    s->mv[0][0][0] = 0;
2229
                    s->mv[0][0][1] = 0;
2230
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_SKIPPED, pb, pb2, tex_pb,
2231
                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2232
                }
2233
                if(mb_type&CANDIDATE_MB_TYPE_INTER4V){
2234
                    s->mv_dir = MV_DIR_FORWARD;
2235
                    s->mv_type = MV_TYPE_8X8;
2236
                    s->mb_intra= 0;
2237
                    for(i=0; i<4; i++){
2238
                        s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2239
                        s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2240
                    }
2241
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER4V, pb, pb2, tex_pb,
2242
                                 &dmin, &next_block, 0, 0);
2243
                }
2244
                if(mb_type&CANDIDATE_MB_TYPE_FORWARD){
2245
                    s->mv_dir = MV_DIR_FORWARD;
2246
                    s->mv_type = MV_TYPE_16X16;
2247
                    s->mb_intra= 0;
2248
                    s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2249
                    s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2250
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD, pb, pb2, tex_pb,
2251
                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2252
                }
2253
                if(mb_type&CANDIDATE_MB_TYPE_BACKWARD){
2254
                    s->mv_dir = MV_DIR_BACKWARD;
2255
                    s->mv_type = MV_TYPE_16X16;
2256
                    s->mb_intra= 0;
2257
                    s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2258
                    s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2259
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD, pb, pb2, tex_pb,
2260
                                 &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
2261
                }
2262
                if(mb_type&CANDIDATE_MB_TYPE_BIDIR){
2263
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2264
                    s->mv_type = MV_TYPE_16X16;
2265
                    s->mb_intra= 0;
2266
                    s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2267
                    s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2268
                    s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2269
                    s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2270
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb,
2271
                                 &dmin, &next_block, 0, 0);
2272
                }
2273
                if(mb_type&CANDIDATE_MB_TYPE_FORWARD_I){
2274
                    s->mv_dir = MV_DIR_FORWARD;
2275
                    s->mv_type = MV_TYPE_FIELD;
2276
                    s->mb_intra= 0;
2277
                    for(i=0; i<2; i++){
2278
                        j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2279
                        s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2280
                        s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2281
                    }
2282
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD_I, pb, pb2, tex_pb,
2283
                                 &dmin, &next_block, 0, 0);
2284
                }
2285
                if(mb_type&CANDIDATE_MB_TYPE_BACKWARD_I){
2286
                    s->mv_dir = MV_DIR_BACKWARD;
2287
                    s->mv_type = MV_TYPE_FIELD;
2288
                    s->mb_intra= 0;
2289
                    for(i=0; i<2; i++){
2290
                        j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2291
                        s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2292
                        s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2293
                    }
2294
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD_I, pb, pb2, tex_pb,
2295
                                 &dmin, &next_block, 0, 0);
2296
                }
2297
                if(mb_type&CANDIDATE_MB_TYPE_BIDIR_I){
2298
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2299
                    s->mv_type = MV_TYPE_FIELD;
2300
                    s->mb_intra= 0;
2301
                    for(dir=0; dir<2; dir++){
2302
                        for(i=0; i<2; i++){
2303
                            j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2304
                            s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2305
                            s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2306
                        }
2307
                    }
2308
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR_I, pb, pb2, tex_pb,
2309
                                 &dmin, &next_block, 0, 0);
2310
                }
2311
                if(mb_type&CANDIDATE_MB_TYPE_INTRA){
2312
                    s->mv_dir = 0;
2313
                    s->mv_type = MV_TYPE_16X16;
2314
                    s->mb_intra= 1;
2315
                    s->mv[0][0][0] = 0;
2316
                    s->mv[0][0][1] = 0;
2317
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTRA, pb, pb2, tex_pb,
2318
                                 &dmin, &next_block, 0, 0);
2319
                    if(s->h263_pred || s->h263_aic){
2320
                        if(best_s.mb_intra)
2321
                            s->mbintra_table[mb_x + mb_y*s->mb_stride]=1;
2322
                        else
2323
                            ff_clean_intra_table_entries(s); //old mode?
2324
                    }
2325
                }
2326

    
2327
                if((s->flags & CODEC_FLAG_QP_RD) && dmin < INT_MAX){
2328
                    if(best_s.mv_type==MV_TYPE_16X16){ //FIXME move 4mv after QPRD
2329
                        const int last_qp= backup_s.qscale;
2330
                        int qpi, qp, dc[6];
2331
                        DCTELEM ac[6][16];
2332
                        const int mvdir= (best_s.mv_dir&MV_DIR_BACKWARD) ? 1 : 0;
2333
                        static const int dquant_tab[4]={-1,1,-2,2};
2334

    
2335
                        assert(backup_s.dquant == 0);
2336

    
2337
                        //FIXME intra
2338
                        s->mv_dir= best_s.mv_dir;
2339
                        s->mv_type = MV_TYPE_16X16;
2340
                        s->mb_intra= best_s.mb_intra;
2341
                        s->mv[0][0][0] = best_s.mv[0][0][0];
2342
                        s->mv[0][0][1] = best_s.mv[0][0][1];
2343
                        s->mv[1][0][0] = best_s.mv[1][0][0];
2344
                        s->mv[1][0][1] = best_s.mv[1][0][1];
2345

    
2346
                        qpi = s->pict_type == FF_B_TYPE ? 2 : 0;
2347
                        for(; qpi<4; qpi++){
2348
                            int dquant= dquant_tab[qpi];
2349
                            qp= last_qp + dquant;
2350
                            if(qp < s->avctx->qmin || qp > s->avctx->qmax)
2351
                                continue;
2352
                            backup_s.dquant= dquant;
2353
                            if(s->mb_intra && s->dc_val[0]){
2354
                                for(i=0; i<6; i++){
2355
                                    dc[i]= s->dc_val[0][ s->block_index[i] ];
2356
                                    memcpy(ac[i], s->ac_val[0][s->block_index[i]], sizeof(DCTELEM)*16);
2357
                                }
2358
                            }
2359

    
2360
                            encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2361
                                         &dmin, &next_block, s->mv[mvdir][0][0], s->mv[mvdir][0][1]);
2362
                            if(best_s.qscale != qp){
2363
                                if(s->mb_intra && s->dc_val[0]){
2364
                                    for(i=0; i<6; i++){
2365
                                        s->dc_val[0][ s->block_index[i] ]= dc[i];
2366
                                        memcpy(s->ac_val[0][s->block_index[i]], ac[i], sizeof(DCTELEM)*16);
2367
                                    }
2368
                                }
2369
                            }
2370
                        }
2371
                    }
2372
                }
2373
                if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT){
2374
                    int mx= s->b_direct_mv_table[xy][0];
2375
                    int my= s->b_direct_mv_table[xy][1];
2376

    
2377
                    backup_s.dquant = 0;
2378
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2379
                    s->mb_intra= 0;
2380
                    ff_mpeg4_set_direct_mv(s, mx, my);
2381
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2382
                                 &dmin, &next_block, mx, my);
2383
                }
2384
                if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT0){
2385
                    backup_s.dquant = 0;
2386
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2387
                    s->mb_intra= 0;
2388
                    ff_mpeg4_set_direct_mv(s, 0, 0);
2389
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2390
                                 &dmin, &next_block, 0, 0);
2391
                }
2392
                if(!best_s.mb_intra && s->flags2&CODEC_FLAG2_SKIP_RD){
2393
                    int coded=0;
2394
                    for(i=0; i<6; i++)
2395
                        coded |= s->block_last_index[i];
2396
                    if(coded){
2397
                        int mx,my;
2398
                        memcpy(s->mv, best_s.mv, sizeof(s->mv));
2399
                        if(CONFIG_MPEG4_ENCODER && best_s.mv_dir & MV_DIRECT){
2400
                            mx=my=0; //FIXME find the one we actually used
2401
                            ff_mpeg4_set_direct_mv(s, mx, my);
2402
                        }else if(best_s.mv_dir&MV_DIR_BACKWARD){
2403
                            mx= s->mv[1][0][0];
2404
                            my= s->mv[1][0][1];
2405
                        }else{
2406
                            mx= s->mv[0][0][0];
2407
                            my= s->mv[0][0][1];
2408
                        }
2409

    
2410
                        s->mv_dir= best_s.mv_dir;
2411
                        s->mv_type = best_s.mv_type;
2412
                        s->mb_intra= 0;
2413
/*                        s->mv[0][0][0] = best_s.mv[0][0][0];
2414
                        s->mv[0][0][1] = best_s.mv[0][0][1];
2415
                        s->mv[1][0][0] = best_s.mv[1][0][0];
2416
                        s->mv[1][0][1] = best_s.mv[1][0][1];*/
2417
                        backup_s.dquant= 0;
2418
                        s->skipdct=1;
2419
                        encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2420
                                        &dmin, &next_block, mx, my);
2421
                        s->skipdct=0;
2422
                    }
2423
                }
2424

    
2425
                s->current_picture.qscale_table[xy]= best_s.qscale;
2426

    
2427
                copy_context_after_encode(s, &best_s, -1);
2428

    
2429
                pb_bits_count= put_bits_count(&s->pb);
2430
                flush_put_bits(&s->pb);
2431
                ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
2432
                s->pb= backup_s.pb;
2433

    
2434
                if(s->data_partitioning){
2435
                    pb2_bits_count= put_bits_count(&s->pb2);
2436
                    flush_put_bits(&s->pb2);
2437
                    ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
2438
                    s->pb2= backup_s.pb2;
2439

    
2440
                    tex_pb_bits_count= put_bits_count(&s->tex_pb);
2441
                    flush_put_bits(&s->tex_pb);
2442
                    ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
2443
                    s->tex_pb= backup_s.tex_pb;
2444
                }
2445
                s->last_bits= put_bits_count(&s->pb);
2446

    
2447
                if (CONFIG_ANY_H263_ENCODER &&
2448
                    s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
2449
                    ff_h263_update_motion_val(s);
2450

    
2451
                if(next_block==0){ //FIXME 16 vs linesize16
2452
                    s->dsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad                     , s->linesize  ,16);
2453
                    s->dsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize    , s->uvlinesize, 8);
2454
                    s->dsp.put_pixels_tab[1][0](s->dest[2], s->rd_scratchpad + 16*s->linesize + 8, s->uvlinesize, 8);
2455
                }
2456

    
2457
                if(s->avctx->mb_decision == FF_MB_DECISION_BITS)
2458
                    MPV_decode_mb(s, s->block);
2459
            } else {
2460
                int motion_x = 0, motion_y = 0;
2461
                s->mv_type=MV_TYPE_16X16;
2462
                // only one MB-Type possible
2463

    
2464
                switch(mb_type){
2465
                case CANDIDATE_MB_TYPE_INTRA:
2466
                    s->mv_dir = 0;
2467
                    s->mb_intra= 1;
2468
                    motion_x= s->mv[0][0][0] = 0;
2469
                    motion_y= s->mv[0][0][1] = 0;
2470
                    break;
2471
                case CANDIDATE_MB_TYPE_INTER:
2472
                    s->mv_dir = MV_DIR_FORWARD;
2473
                    s->mb_intra= 0;
2474
                    motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
2475
                    motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
2476
                    break;
2477
                case CANDIDATE_MB_TYPE_INTER_I:
2478
                    s->mv_dir = MV_DIR_FORWARD;
2479
                    s->mv_type = MV_TYPE_FIELD;
2480
                    s->mb_intra= 0;
2481
                    for(i=0; i<2; i++){
2482
                        j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2483
                        s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2484
                        s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2485
                    }
2486
                    break;
2487
                case CANDIDATE_MB_TYPE_INTER4V:
2488
                    s->mv_dir = MV_DIR_FORWARD;
2489
                    s->mv_type = MV_TYPE_8X8;
2490
                    s->mb_intra= 0;
2491
                    for(i=0; i<4; i++){
2492
                        s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2493
                        s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2494
                    }
2495
                    break;
2496
                case CANDIDATE_MB_TYPE_DIRECT:
2497
                    if (CONFIG_MPEG4_ENCODER) {
2498
                        s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2499
                        s->mb_intra= 0;
2500
                        motion_x=s->b_direct_mv_table[xy][0];
2501
                        motion_y=s->b_direct_mv_table[xy][1];
2502
                        ff_mpeg4_set_direct_mv(s, motion_x, motion_y);
2503
                    }
2504
                    break;
2505
                case CANDIDATE_MB_TYPE_DIRECT0:
2506
                    if (CONFIG_MPEG4_ENCODER) {
2507
                        s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2508
                        s->mb_intra= 0;
2509
                        ff_mpeg4_set_direct_mv(s, 0, 0);
2510
                    }
2511
                    break;
2512
                case CANDIDATE_MB_TYPE_BIDIR:
2513
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2514
                    s->mb_intra= 0;
2515
                    s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2516
                    s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2517
                    s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2518
                    s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2519
                    break;
2520
                case CANDIDATE_MB_TYPE_BACKWARD:
2521
                    s->mv_dir = MV_DIR_BACKWARD;
2522
                    s->mb_intra= 0;
2523
                    motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2524
                    motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2525
                    break;
2526
                case CANDIDATE_MB_TYPE_FORWARD:
2527
                    s->mv_dir = MV_DIR_FORWARD;
2528
                    s->mb_intra= 0;
2529
                    motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2530
                    motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2531
//                    printf(" %d %d ", motion_x, motion_y);
2532
                    break;
2533
                case CANDIDATE_MB_TYPE_FORWARD_I:
2534
                    s->mv_dir = MV_DIR_FORWARD;
2535
                    s->mv_type = MV_TYPE_FIELD;
2536
                    s->mb_intra= 0;
2537
                    for(i=0; i<2; i++){
2538
                        j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2539
                        s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2540
                        s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2541
                    }
2542
                    break;
2543
                case CANDIDATE_MB_TYPE_BACKWARD_I:
2544
                    s->mv_dir = MV_DIR_BACKWARD;
2545
                    s->mv_type = MV_TYPE_FIELD;
2546
                    s->mb_intra= 0;
2547
                    for(i=0; i<2; i++){
2548
                        j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2549
                        s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2550
                        s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2551
                    }
2552
                    break;
2553
                case CANDIDATE_MB_TYPE_BIDIR_I:
2554
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2555
                    s->mv_type = MV_TYPE_FIELD;
2556
                    s->mb_intra= 0;
2557
                    for(dir=0; dir<2; dir++){
2558
                        for(i=0; i<2; i++){
2559
                            j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2560
                            s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2561
                            s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2562
                        }
2563
                    }
2564
                    break;
2565
                default:
2566
                    av_log(s->avctx, AV_LOG_ERROR, "illegal MB type\n");
2567
                }
2568

    
2569
                encode_mb(s, motion_x, motion_y);
2570

    
2571
                // RAL: Update last macroblock type
2572
                s->last_mv_dir = s->mv_dir;
2573

    
2574
                if (CONFIG_ANY_H263_ENCODER &&
2575
                    s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
2576
                    ff_h263_update_motion_val(s);
2577

    
2578
                MPV_decode_mb(s, s->block);
2579
            }
2580

    
2581
            /* clean the MV table in IPS frames for direct mode in B frames */
2582
            if(s->mb_intra /* && I,P,S_TYPE */){
2583
                s->p_mv_table[xy][0]=0;
2584
                s->p_mv_table[xy][1]=0;
2585
            }
2586

    
2587
            if(s->flags&CODEC_FLAG_PSNR){
2588
                int w= 16;
2589
                int h= 16;
2590

    
2591
                if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
2592
                if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
2593

    
2594
                s->current_picture.error[0] += sse(
2595
                    s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16,
2596
                    s->dest[0], w, h, s->linesize);
2597
                s->current_picture.error[1] += sse(
2598
                    s, s->new_picture.data[1] + s->mb_x*8  + s->mb_y*s->uvlinesize*chr_h,
2599
                    s->dest[1], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
2600
                s->current_picture.error[2] += sse(
2601
                    s, s->new_picture.data[2] + s->mb_x*8  + s->mb_y*s->uvlinesize*chr_h,
2602
                    s->dest[2], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
2603
            }
2604
            if(s->loop_filter){
2605
                if(CONFIG_ANY_H263_ENCODER && s->out_format == FMT_H263)
2606
                    ff_h263_loop_filter(s);
2607
            }
2608
//printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, put_bits_count(&s->pb));
2609
        }
2610
    }
2611

    
2612
    //not beautiful here but we must write it before flushing so it has to be here
2613
    if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == FF_I_TYPE)
2614
        msmpeg4_encode_ext_header(s);
2615

    
2616
    write_slice_end(s);
2617

    
2618
    /* Send the last GOB if RTP */
2619
    if (s->avctx->rtp_callback) {
2620
        int number_mb = (mb_y - s->resync_mb_y)*s->mb_width - s->resync_mb_x;
2621
        pdif = put_bits_ptr(&s->pb) - s->ptr_lastgob;
2622
        /* Call the RTP callback to send the last GOB */
2623
        emms_c();
2624
        s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, pdif, number_mb);
2625
    }
2626

    
2627
    return 0;
2628
}
2629

    
2630
#define MERGE(field) dst->field += src->field; src->field=0
2631
static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src){
2632
    MERGE(me.scene_change_score);
2633
    MERGE(me.mc_mb_var_sum_temp);
2634
    MERGE(me.mb_var_sum_temp);
2635
}
2636

    
2637
static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src){
2638
    int i;
2639

    
2640
    MERGE(dct_count[0]); //note, the other dct vars are not part of the context
2641
    MERGE(dct_count[1]);
2642
    MERGE(mv_bits);
2643
    MERGE(i_tex_bits);
2644
    MERGE(p_tex_bits);
2645
    MERGE(i_count);
2646
    MERGE(f_count);
2647
    MERGE(b_count);
2648
    MERGE(skip_count);
2649
    MERGE(misc_bits);
2650
    MERGE(error_count);
2651
    MERGE(padding_bug_score);
2652
    MERGE(current_picture.error[0]);
2653
    MERGE(current_picture.error[1]);
2654
    MERGE(current_picture.error[2]);
2655

    
2656
    if(dst->avctx->noise_reduction){
2657
        for(i=0; i<64; i++){
2658
            MERGE(dct_error_sum[0][i]);
2659
            MERGE(dct_error_sum[1][i]);
2660
        }
2661
    }
2662

    
2663
    assert(put_bits_count(&src->pb) % 8 ==0);
2664
    assert(put_bits_count(&dst->pb) % 8 ==0);
2665
    ff_copy_bits(&dst->pb, src->pb.buf, put_bits_count(&src->pb));
2666
    flush_put_bits(&dst->pb);
2667
}
2668

    
2669
static int estimate_qp(MpegEncContext *s, int dry_run){
2670
    if (s->next_lambda){
2671
        s->current_picture_ptr->quality=
2672
        s->current_picture.quality = s->next_lambda;
2673
        if(!dry_run) s->next_lambda= 0;
2674
    } else if (!s->fixed_qscale) {
2675
        s->current_picture_ptr->quality=
2676
        s->current_picture.quality = ff_rate_estimate_qscale(s, dry_run);
2677
        if (s->current_picture.quality < 0)
2678
            return -1;
2679
    }
2680

    
2681
    if(s->adaptive_quant){
2682
        switch(s->codec_id){
2683
        case CODEC_ID_MPEG4:
2684
            if (CONFIG_MPEG4_ENCODER)
2685
                ff_clean_mpeg4_qscales(s);
2686
            break;
2687
        case CODEC_ID_H263:
2688
        case CODEC_ID_H263P:
2689
        case CODEC_ID_FLV1:
2690
            if (CONFIG_H263_ENCODER)
2691
                ff_clean_h263_qscales(s);
2692
            break;
2693
        }
2694

    
2695
        s->lambda= s->lambda_table[0];
2696
        //FIXME broken
2697
    }else
2698
        s->lambda= s->current_picture.quality;
2699
//printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality);
2700
    update_qscale(s);
2701
    return 0;
2702
}
2703

    
2704
/* must be called before writing the header */
2705
static void set_frame_distances(MpegEncContext * s){
2706
    assert(s->current_picture_ptr->pts != AV_NOPTS_VALUE);
2707
    s->time= s->current_picture_ptr->pts*s->avctx->time_base.num;
2708

    
2709
    if(s->pict_type==FF_B_TYPE){
2710
        s->pb_time= s->pp_time - (s->last_non_b_time - s->time);
2711
        assert(s->pb_time > 0 && s->pb_time < s->pp_time);
2712
    }else{
2713
        s->pp_time= s->time - s->last_non_b_time;
2714
        s->last_non_b_time= s->time;
2715
        assert(s->picture_number==0 || s->pp_time > 0);
2716
    }
2717
}
2718

    
2719
static int encode_picture(MpegEncContext *s, int picture_number)
2720
{
2721
    int i;
2722
    int bits;
2723

    
2724
    s->picture_number = picture_number;
2725

    
2726
    /* Reset the average MB variance */
2727
    s->me.mb_var_sum_temp    =
2728
    s->me.mc_mb_var_sum_temp = 0;
2729

    
2730
    /* we need to initialize some time vars before we can encode b-frames */
2731
    // RAL: Condition added for MPEG1VIDEO
2732
    if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->h263_msmpeg4))
2733
        set_frame_distances(s);
2734
    if(CONFIG_MPEG4_ENCODER && s->codec_id == CODEC_ID_MPEG4)
2735
        ff_set_mpeg4_time(s);
2736

    
2737
    s->me.scene_change_score=0;
2738

    
2739
//    s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME rate distortion
2740

    
2741
    if(s->pict_type==FF_I_TYPE){
2742
        if(s->msmpeg4_version >= 3) s->no_rounding=1;
2743
        else                        s->no_rounding=0;
2744
    }else if(s->pict_type!=FF_B_TYPE){
2745
        if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
2746
            s->no_rounding ^= 1;
2747
    }
2748

    
2749
    if(s->flags & CODEC_FLAG_PASS2){
2750
        if (estimate_qp(s,1) < 0)
2751
            return -1;
2752
        ff_get_2pass_fcode(s);
2753
    }else if(!(s->flags & CODEC_FLAG_QSCALE)){
2754
        if(s->pict_type==FF_B_TYPE)
2755
            s->lambda= s->last_lambda_for[s->pict_type];
2756
        else
2757
            s->lambda= s->last_lambda_for[s->last_non_b_pict_type];
2758
        update_qscale(s);
2759
    }
2760

    
2761
    s->mb_intra=0; //for the rate distortion & bit compare functions
2762
    for(i=1; i<s->avctx->thread_count; i++){
2763
        ff_update_duplicate_context(s->thread_context[i], s);
2764
    }
2765

    
2766
    if(ff_init_me(s)<0)
2767
        return -1;
2768

    
2769
    /* Estimate motion for every MB */
2770
    if(s->pict_type != FF_I_TYPE){
2771
        s->lambda = (s->lambda * s->avctx->me_penalty_compensation + 128)>>8;
2772
        s->lambda2= (s->lambda2* (int64_t)s->avctx->me_penalty_compensation + 128)>>8;
2773
        if(s->pict_type != FF_B_TYPE && s->avctx->me_threshold==0){
2774
            if((s->avctx->pre_me && s->last_non_b_pict_type==FF_I_TYPE) || s->avctx->pre_me==2){
2775
                s->avctx->execute(s->avctx, pre_estimate_motion_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2776
            }
2777
        }
2778

    
2779
        s->avctx->execute(s->avctx, estimate_motion_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2780
    }else /* if(s->pict_type == FF_I_TYPE) */{
2781
        /* I-Frame */
2782
        for(i=0; i<s->mb_stride*s->mb_height; i++)
2783
            s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2784

    
2785
        if(!s->fixed_qscale){
2786
            /* finding spatial complexity for I-frame rate control */
2787
            s->avctx->execute(s->avctx, mb_var_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2788
        }
2789
    }
2790
    for(i=1; i<s->avctx->thread_count; i++){
2791
        merge_context_after_me(s, s->thread_context[i]);
2792
    }
2793
    s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum= s->me.mc_mb_var_sum_temp;
2794
    s->current_picture.   mb_var_sum= s->current_picture_ptr->   mb_var_sum= s->me.   mb_var_sum_temp;
2795
    emms_c();
2796

    
2797
    if(s->me.scene_change_score > s->avctx->scenechange_threshold && s->pict_type == FF_P_TYPE){
2798
        s->pict_type= FF_I_TYPE;
2799
        for(i=0; i<s->mb_stride*s->mb_height; i++)
2800
            s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2801
//printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum);
2802
    }
2803

    
2804
    if(!s->umvplus){
2805
        if(s->pict_type==FF_P_TYPE || s->pict_type==FF_S_TYPE) {
2806
            s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER);
2807

    
2808
            if(s->flags & CODEC_FLAG_INTERLACED_ME){
2809
                int a,b;
2810
                a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select
2811
                b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I);
2812
                s->f_code= FFMAX3(s->f_code, a, b);
2813
            }
2814

    
2815
            ff_fix_long_p_mvs(s);
2816
            ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0);
2817
            if(s->flags & CODEC_FLAG_INTERLACED_ME){
2818
                int j;
2819
                for(i=0; i<2; i++){
2820
                    for(j=0; j<2; j++)
2821
                        ff_fix_long_mvs(s, s->p_field_select_table[i], j,
2822
                                        s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0);
2823
                }
2824
            }
2825
        }
2826

    
2827
        if(s->pict_type==FF_B_TYPE){
2828
            int a, b;
2829

    
2830
            a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD);
2831
            b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2832
            s->f_code = FFMAX(a, b);
2833

    
2834
            a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD);
2835
            b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2836
            s->b_code = FFMAX(a, b);
2837

    
2838
            ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1);
2839
            ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1);
2840
            ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2841
            ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2842
            if(s->flags & CODEC_FLAG_INTERLACED_ME){
2843
                int dir, j;
2844
                for(dir=0; dir<2; dir++){
2845
                    for(i=0; i<2; i++){
2846
                        for(j=0; j<2; j++){
2847
                            int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I)
2848
                                          : (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I);
2849
                            ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j,
2850
                                            s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1);
2851
                        }
2852
                    }
2853
                }
2854
            }
2855
        }
2856
    }
2857

    
2858
    if (estimate_qp(s, 0) < 0)
2859
        return -1;
2860

    
2861
    if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==FF_I_TYPE && !(s->flags & CODEC_FLAG_QSCALE))
2862
        s->qscale= 3; //reduce clipping problems
2863

    
2864
    if (s->out_format == FMT_MJPEG) {
2865
        /* for mjpeg, we do include qscale in the matrix */
2866
        s->intra_matrix[0] = ff_mpeg1_default_intra_matrix[0];
2867
        for(i=1;i<64;i++){
2868
            int j= s->dsp.idct_permutation[i];
2869

    
2870
            s->intra_matrix[j] = av_clip_uint8((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
2871
        }
2872
        ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
2873
                       s->intra_matrix, s->intra_quant_bias, 8, 8, 1);
2874
        s->qscale= 8;
2875
    }
2876

    
2877
    //FIXME var duplication
2878
    s->current_picture_ptr->key_frame=
2879
    s->current_picture.key_frame= s->pict_type == FF_I_TYPE; //FIXME pic_ptr
2880
    s->current_picture_ptr->pict_type=
2881
    s->current_picture.pict_type= s->pict_type;
2882

    
2883
    if(s->current_picture.key_frame)
2884
        s->picture_in_gop_number=0;
2885

    
2886
    s->last_bits= put_bits_count(&s->pb);
2887
    switch(s->out_format) {
2888
    case FMT_MJPEG:
2889
        if (CONFIG_MJPEG_ENCODER)
2890
            ff_mjpeg_encode_picture_header(s);
2891
        break;
2892
    case FMT_H261:
2893
        if (CONFIG_H261_ENCODER)
2894
            ff_h261_encode_picture_header(s, picture_number);
2895
        break;
2896
    case FMT_H263:
2897
        if (CONFIG_WMV2_ENCODER && s->codec_id == CODEC_ID_WMV2)
2898
            ff_wmv2_encode_picture_header(s, picture_number);
2899
        else if (CONFIG_MSMPEG4_ENCODER && s->h263_msmpeg4)
2900
            msmpeg4_encode_picture_header(s, picture_number);
2901
        else if (CONFIG_MPEG4_ENCODER && s->h263_pred)
2902
            mpeg4_encode_picture_header(s, picture_number);
2903
        else if (CONFIG_RV10_ENCODER && s->codec_id == CODEC_ID_RV10)
2904
            rv10_encode_picture_header(s, picture_number);
2905
        else if (CONFIG_RV20_ENCODER && s->codec_id == CODEC_ID_RV20)
2906
            rv20_encode_picture_header(s, picture_number);
2907
        else if (CONFIG_FLV_ENCODER && s->codec_id == CODEC_ID_FLV1)
2908
            ff_flv_encode_picture_header(s, picture_number);
2909
        else if (CONFIG_ANY_H263_ENCODER)
2910
            h263_encode_picture_header(s, picture_number);
2911
        break;
2912
    case FMT_MPEG1:
2913
        if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
2914
            mpeg1_encode_picture_header(s, picture_number);
2915
        break;
2916
    case FMT_H264:
2917
        break;
2918
    default:
2919
        assert(0);
2920
    }
2921
    bits= put_bits_count(&s->pb);
2922
    s->header_bits= bits - s->last_bits;
2923

    
2924
    for(i=1; i<s->avctx->thread_count; i++){
2925
        update_duplicate_context_after_me(s->thread_context[i], s);
2926
    }
2927
    s->avctx->execute(s->avctx, encode_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2928
    for(i=1; i<s->avctx->thread_count; i++){
2929
        merge_context_after_encode(s, s->thread_context[i]);
2930
    }
2931
    emms_c();
2932
    return 0;
2933
}
2934

    
2935
void  denoise_dct_c(MpegEncContext *s, DCTELEM *block){
2936
    const int intra= s->mb_intra;
2937
    int i;
2938

    
2939
    s->dct_count[intra]++;
2940

    
2941
    for(i=0; i<64; i++){
2942
        int level= block[i];
2943

    
2944
        if(level){
2945
            if(level>0){
2946
                s->dct_error_sum[intra][i] += level;
2947
                level -= s->dct_offset[intra][i];
2948
                if(level<0) level=0;
2949
            }else{
2950
                s->dct_error_sum[intra][i] -= level;
2951
                level += s->dct_offset[intra][i];
2952
                if(level>0) level=0;
2953
            }
2954
            block[i]= level;
2955
        }
2956
    }
2957
}
2958

    
2959
int dct_quantize_trellis_c(MpegEncContext *s,
2960
                        DCTELEM *block, int n,
2961
                        int qscale, int *overflow){
2962
    const int *qmat;
2963
    const uint8_t *scantable= s->intra_scantable.scantable;
2964
    const uint8_t *perm_scantable= s->intra_scantable.permutated;
2965
    int max=0;
2966
    unsigned int threshold1, threshold2;
2967
    int bias=0;
2968
    int run_tab[65];
2969
    int level_tab[65];
2970
    int score_tab[65];
2971
    int survivor[65];
2972
    int survivor_count;
2973
    int last_run=0;
2974
    int last_level=0;
2975
    int last_score= 0;
2976
    int last_i;
2977
    int coeff[2][64];
2978
    int coeff_count[64];
2979
    int qmul, qadd, start_i, last_non_zero, i, dc;
2980
    const int esc_length= s->ac_esc_length;
2981
    uint8_t * length;
2982
    uint8_t * last_length;
2983
    const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6);
2984

    
2985
    s->dsp.fdct (block);
2986

    
2987
    if(s->dct_error_sum)
2988
        s->denoise_dct(s, block);
2989
    qmul= qscale*16;
2990
    qadd= ((qscale-1)|1)*8;
2991

    
2992
    if (s->mb_intra) {
2993
        int q;
2994
        if (!s->h263_aic) {
2995
            if (n < 4)
2996
                q = s->y_dc_scale;
2997
            else
2998
                q = s->c_dc_scale;
2999
            q = q << 3;
3000
        } else{
3001
            /* For AIC we skip quant/dequant of INTRADC */
3002
            q = 1 << 3;
3003
            qadd=0;
3004
        }
3005

    
3006
        /* note: block[0] is assumed to be positive */
3007
        block[0] = (block[0] + (q >> 1)) / q;
3008
        start_i = 1;
3009
        last_non_zero = 0;
3010
        qmat = s->q_intra_matrix[qscale];
3011
        if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3012
            bias= 1<<(QMAT_SHIFT-1);
3013
        length     = s->intra_ac_vlc_length;
3014
        last_length= s->intra_ac_vlc_last_length;
3015
    } else {
3016
        start_i = 0;
3017
        last_non_zero = -1;
3018
        qmat = s->q_inter_matrix[qscale];
3019
        length     = s->inter_ac_vlc_length;
3020
        last_length= s->inter_ac_vlc_last_length;
3021
    }
3022
    last_i= start_i;
3023

    
3024
    threshold1= (1<<QMAT_SHIFT) - bias - 1;
3025
    threshold2= (threshold1<<1);
3026

    
3027
    for(i=63; i>=start_i; i--) {
3028
        const int j = scantable[i];
3029
        int level = block[j] * qmat[j];
3030

    
3031
        if(((unsigned)(level+threshold1))>threshold2){
3032
            last_non_zero = i;
3033
            break;
3034
        }
3035
    }
3036

    
3037
    for(i=start_i; i<=last_non_zero; i++) {
3038
        const int j = scantable[i];
3039
        int level = block[j] * qmat[j];
3040

    
3041
//        if(   bias+level >= (1<<(QMAT_SHIFT - 3))
3042
//           || bias-level >= (1<<(QMAT_SHIFT - 3))){
3043
        if(((unsigned)(level+threshold1))>threshold2){
3044
            if(level>0){
3045
                level= (bias + level)>>QMAT_SHIFT;
3046
                coeff[0][i]= level;
3047
                coeff[1][i]= level-1;
3048
//                coeff[2][k]= level-2;
3049
            }else{
3050
                level= (bias - level)>>QMAT_SHIFT;
3051
                coeff[0][i]= -level;
3052
                coeff[1][i]= -level+1;
3053
//                coeff[2][k]= -level+2;
3054
            }
3055
            coeff_count[i]= FFMIN(level, 2);
3056
            assert(coeff_count[i]);
3057
            max |=level;
3058
        }else{
3059
            coeff[0][i]= (level>>31)|1;
3060
            coeff_count[i]= 1;
3061
        }
3062
    }
3063

    
3064
    *overflow= s->max_qcoeff < max; //overflow might have happened
3065

    
3066
    if(last_non_zero < start_i){
3067
        memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3068
        return last_non_zero;
3069
    }
3070

    
3071
    score_tab[start_i]= 0;
3072
    survivor[0]= start_i;
3073
    survivor_count= 1;
3074

    
3075
    for(i=start_i; i<=last_non_zero; i++){
3076
        int level_index, j, zero_distortion;
3077
        int dct_coeff= FFABS(block[ scantable[i] ]);
3078
        int best_score=256*256*256*120;
3079

    
3080
        if (   s->dsp.fdct == fdct_ifast
3081
#ifndef FAAN_POSTSCALE
3082
            || s->dsp.fdct == ff_faandct
3083
#endif
3084
           )
3085
            dct_coeff= (dct_coeff*ff_inv_aanscales[ scantable[i] ]) >> 12;
3086
        zero_distortion= dct_coeff*dct_coeff;
3087

    
3088
        for(level_index=0; level_index < coeff_count[i]; level_index++){
3089
            int distortion;
3090
            int level= coeff[level_index][i];
3091
            const int alevel= FFABS(level);
3092
            int unquant_coeff;
3093

    
3094
            assert(level);
3095

    
3096
            if(s->out_format == FMT_H263){
3097
                unquant_coeff= alevel*qmul + qadd;
3098
            }else{ //MPEG1
3099
                j= s->dsp.idct_permutation[ scantable[i] ]; //FIXME optimize
3100
                if(s->mb_intra){
3101
                        unquant_coeff = (int)(  alevel  * qscale * s->intra_matrix[j]) >> 3;
3102
                        unquant_coeff =   (unquant_coeff - 1) | 1;
3103
                }else{
3104
                        unquant_coeff = (((  alevel  << 1) + 1) * qscale * ((int) s->inter_matrix[j])) >> 4;
3105
                        unquant_coeff =   (unquant_coeff - 1) | 1;
3106
                }
3107
                unquant_coeff<<= 3;
3108
            }
3109

    
3110
            distortion= (unquant_coeff - dct_coeff) * (unquant_coeff - dct_coeff) - zero_distortion;
3111
            level+=64;
3112
            if((level&(~127)) == 0){
3113
                for(j=survivor_count-1; j>=0; j--){
3114
                    int run= i - survivor[j];
3115
                    int score= distortion + length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3116
                    score += score_tab[i-run];
3117

    
3118
                    if(score < best_score){
3119
                        best_score= score;
3120
                        run_tab[i+1]= run;
3121
                        level_tab[i+1]= level-64;
3122
                    }
3123
                }
3124

    
3125
                if(s->out_format == FMT_H263){
3126
                    for(j=survivor_count-1; j>=0; j--){
3127
                        int run= i - survivor[j];
3128
                        int score= distortion + last_length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3129
                        score += score_tab[i-run];
3130
                        if(score < last_score){
3131
                            last_score= score;
3132
                            last_run= run;
3133
                            last_level= level-64;
3134
                            last_i= i+1;
3135
                        }
3136
                    }
3137
                }
3138
            }else{
3139
                distortion += esc_length*lambda;
3140
                for(j=survivor_count-1; j>=0; j--){
3141
                    int run= i - survivor[j];
3142
                    int score= distortion + score_tab[i-run];
3143

    
3144
                    if(score < best_score){
3145
                        best_score= score;
3146
                        run_tab[i+1]= run;
3147
                        level_tab[i+1]= level-64;
3148
                    }
3149
                }
3150

    
3151
                if(s->out_format == FMT_H263){
3152
                  for(j=survivor_count-1; j>=0; j--){
3153
                        int run= i - survivor[j];
3154
                        int score= distortion + score_tab[i-run];
3155
                        if(score < last_score){
3156
                            last_score= score;
3157
                            last_run= run;
3158
                            last_level= level-64;
3159
                            last_i= i+1;
3160
                        }
3161
                    }
3162
                }
3163
            }
3164
        }
3165

    
3166
        score_tab[i+1]= best_score;
3167

    
3168
        //Note: there is a vlc code in mpeg4 which is 1 bit shorter then another one with a shorter run and the same level
3169
        if(last_non_zero <= 27){
3170
            for(; survivor_count; survivor_count--){
3171
                if(score_tab[ survivor[survivor_count-1] ] <= best_score)
3172
                    break;
3173
            }
3174
        }else{
3175
            for(; survivor_count; survivor_count--){
3176
                if(score_tab[ survivor[survivor_count-1] ] <= best_score + lambda)
3177
                    break;
3178
            }
3179
        }
3180

    
3181
        survivor[ survivor_count++ ]= i+1;
3182
    }
3183

    
3184
    if(s->out_format != FMT_H263){
3185
        last_score= 256*256*256*120;
3186
        for(i= survivor[0]; i<=last_non_zero + 1; i++){
3187
            int score= score_tab[i];
3188
            if(i) score += lambda*2; //FIXME exacter?
3189

    
3190
            if(score < last_score){
3191
                last_score= score;
3192
                last_i= i;
3193
                last_level= level_tab[i];
3194
                last_run= run_tab[i];
3195
            }
3196
        }
3197
    }
3198

    
3199
    s->coded_score[n] = last_score;
3200

    
3201
    dc= FFABS(block[0]);
3202
    last_non_zero= last_i - 1;
3203
    memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3204

    
3205
    if(last_non_zero < start_i)
3206
        return last_non_zero;
3207

    
3208
    if(last_non_zero == 0 && start_i == 0){
3209
        int best_level= 0;
3210
        int best_score= dc * dc;
3211

    
3212
        for(i=0; i<coeff_count[0]; i++){
3213
            int level= coeff[i][0];
3214
            int alevel= FFABS(level);
3215
            int unquant_coeff, score, distortion;
3216

    
3217
            if(s->out_format == FMT_H263){
3218
                    unquant_coeff= (alevel*qmul + qadd)>>3;
3219
            }else{ //MPEG1
3220
                    unquant_coeff = (((  alevel  << 1) + 1) * qscale * ((int) s->inter_matrix[0])) >> 4;
3221
                    unquant_coeff =   (unquant_coeff - 1) | 1;
3222
            }
3223
            unquant_coeff = (unquant_coeff + 4) >> 3;
3224
            unquant_coeff<<= 3 + 3;
3225

    
3226
            distortion= (unquant_coeff - dc) * (unquant_coeff - dc);
3227
            level+=64;
3228
            if((level&(~127)) == 0) score= distortion + last_length[UNI_AC_ENC_INDEX(0, level)]*lambda;
3229
            else                    score= distortion + esc_length*lambda;
3230

    
3231
            if(score < best_score){
3232
                best_score= score;
3233
                best_level= level - 64;
3234
            }
3235
        }
3236
        block[0]= best_level;
3237
        s->coded_score[n] = best_score - dc*dc;
3238
        if(best_level == 0) return -1;
3239
        else                return last_non_zero;
3240
    }
3241

    
3242
    i= last_i;
3243
    assert(last_level);
3244

    
3245
    block[ perm_scantable[last_non_zero] ]= last_level;
3246
    i -= last_run + 1;
3247

    
3248
    for(; i>start_i; i -= run_tab[i] + 1){
3249
        block[ perm_scantable[i-1] ]= level_tab[i];
3250
    }
3251

    
3252
    return last_non_zero;
3253
}
3254

    
3255
//#define REFINE_STATS 1
3256
static int16_t basis[64][64];
3257

    
3258
static void build_basis(uint8_t *perm){
3259
    int i, j, x, y;
3260
    emms_c();
3261
    for(i=0; i<8; i++){
3262
        for(j=0; j<8; j++){
3263
            for(y=0; y<8; y++){
3264
                for(x=0; x<8; x++){
3265
                    double s= 0.25*(1<<BASIS_SHIFT);
3266
                    int index= 8*i + j;
3267
                    int perm_index= perm[index];
3268
                    if(i==0) s*= sqrt(0.5);
3269
                    if(j==0) s*= sqrt(0.5);
3270
                    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)));
3271
                }
3272
            }
3273
        }
3274
    }
3275
}
3276

    
3277
static int dct_quantize_refine(MpegEncContext *s, //FIXME breaks denoise?
3278
                        DCTELEM *block, int16_t *weight, DCTELEM *orig,
3279
                        int n, int qscale){
3280
    int16_t rem[64];
3281
    DECLARE_ALIGNED_16(DCTELEM, d1[64]);
3282
    const uint8_t *scantable= s->intra_scantable.scantable;
3283
    const uint8_t *perm_scantable= s->intra_scantable.permutated;
3284
//    unsigned int threshold1, threshold2;
3285
//    int bias=0;
3286
    int run_tab[65];
3287
    int prev_run=0;
3288
    int prev_level=0;
3289
    int qmul, qadd, start_i, last_non_zero, i, dc;
3290
    uint8_t * length;
3291
    uint8_t * last_length;
3292
    int lambda;
3293
    int rle_index, run, q = 1, sum; //q is only used when s->mb_intra is true
3294
#ifdef REFINE_STATS
3295
static int count=0;
3296
static int after_last=0;
3297
static int to_zero=0;
3298
static int from_zero=0;
3299
static int raise=0;
3300
static int lower=0;
3301
static int messed_sign=0;
3302
#endif
3303

    
3304
    if(basis[0][0] == 0)
3305
        build_basis(s->dsp.idct_permutation);
3306

    
3307
    qmul= qscale*2;
3308
    qadd= (qscale-1)|1;
3309
    if (s->mb_intra) {
3310
        if (!s->h263_aic) {
3311
            if (n < 4)
3312
                q = s->y_dc_scale;
3313
            else
3314
                q = s->c_dc_scale;
3315
        } else{
3316
            /* For AIC we skip quant/dequant of INTRADC */
3317
            q = 1;
3318
            qadd=0;
3319
        }
3320
        q <<= RECON_SHIFT-3;
3321
        /* note: block[0] is assumed to be positive */
3322
        dc= block[0]*q;
3323
//        block[0] = (block[0] + (q >> 1)) / q;
3324
        start_i = 1;
3325
//        if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3326
//            bias= 1<<(QMAT_SHIFT-1);
3327
        length     = s->intra_ac_vlc_length;
3328
        last_length= s->intra_ac_vlc_last_length;
3329
    } else {
3330
        dc= 0;
3331
        start_i = 0;
3332
        length     = s->inter_ac_vlc_length;
3333
        last_length= s->inter_ac_vlc_last_length;
3334
    }
3335
    last_non_zero = s->block_last_index[n];
3336

    
3337
#ifdef REFINE_STATS
3338
{START_TIMER
3339
#endif
3340
    dc += (1<<(RECON_SHIFT-1));
3341
    for(i=0; i<64; i++){
3342
        rem[i]= dc - (orig[i]<<RECON_SHIFT); //FIXME  use orig dirrectly instead of copying to rem[]
3343
    }
3344
#ifdef REFINE_STATS
3345
STOP_TIMER("memset rem[]")}
3346
#endif
3347
    sum=0;
3348
    for(i=0; i<64; i++){
3349
        int one= 36;
3350
        int qns=4;
3351
        int w;
3352

    
3353
        w= FFABS(weight[i]) + qns*one;
3354
        w= 15 + (48*qns*one + w/2)/w; // 16 .. 63
3355

    
3356
        weight[i] = w;
3357
//        w=weight[i] = (63*qns + (w/2)) / w;
3358

    
3359
        assert(w>0);
3360
        assert(w<(1<<6));
3361
        sum += w*w;
3362
    }
3363
    lambda= sum*(uint64_t)s->lambda2 >> (FF_LAMBDA_SHIFT - 6 + 6 + 6 + 6);
3364
#ifdef REFINE_STATS
3365
{START_TIMER
3366
#endif
3367
    run=0;
3368
    rle_index=0;
3369
    for(i=start_i; i<=last_non_zero; i++){
3370
        int j= perm_scantable[i];
3371
        const int level= block[j];
3372
        int coeff;
3373

    
3374
        if(level){
3375
            if(level<0) coeff= qmul*level - qadd;
3376
            else        coeff= qmul*level + qadd;
3377
            run_tab[rle_index++]=run;
3378
            run=0;
3379

    
3380
            s->dsp.add_8x8basis(rem, basis[j], coeff);
3381
        }else{
3382
            run++;
3383
        }
3384
    }
3385
#ifdef REFINE_STATS
3386
if(last_non_zero>0){
3387
STOP_TIMER("init rem[]")
3388
}
3389
}
3390

    
3391
{START_TIMER
3392
#endif
3393
    for(;;){
3394
        int best_score=s->dsp.try_8x8basis(rem, weight, basis[0], 0);
3395
        int best_coeff=0;
3396
        int best_change=0;
3397
        int run2, best_unquant_change=0, analyze_gradient;
3398
#ifdef REFINE_STATS
3399
{START_TIMER
3400
#endif
3401
        analyze_gradient = last_non_zero > 2 || s->avctx->quantizer_noise_shaping >= 3;
3402

    
3403
        if(analyze_gradient){
3404
#ifdef REFINE_STATS
3405
{START_TIMER
3406
#endif
3407
            for(i=0; i<64; i++){
3408
                int w= weight[i];
3409

    
3410
                d1[i] = (rem[i]*w*w + (1<<(RECON_SHIFT+12-1)))>>(RECON_SHIFT+12);
3411
            }
3412
#ifdef REFINE_STATS
3413
STOP_TIMER("rem*w*w")}
3414
{START_TIMER
3415
#endif
3416
            s->dsp.fdct(d1);
3417
#ifdef REFINE_STATS
3418
STOP_TIMER("dct")}
3419
#endif
3420
        }
3421

    
3422
        if(start_i){
3423
            const int level= block[0];
3424
            int change, old_coeff;
3425

    
3426
            assert(s->mb_intra);
3427

    
3428
            old_coeff= q*level;
3429

    
3430
            for(change=-1; change<=1; change+=2){
3431
                int new_level= level + change;
3432
                int score, new_coeff;
3433

    
3434
                new_coeff= q*new_level;
3435
                if(new_coeff >= 2048 || new_coeff < 0)
3436
                    continue;
3437

    
3438
                score= s->dsp.try_8x8basis(rem, weight, basis[0], new_coeff - old_coeff);
3439
                if(score<best_score){
3440
                    best_score= score;
3441
                    best_coeff= 0;
3442
                    best_change= change;
3443
                    best_unquant_change= new_coeff - old_coeff;
3444
                }
3445
            }
3446
        }
3447

    
3448
        run=0;
3449
        rle_index=0;
3450
        run2= run_tab[rle_index++];
3451
        prev_level=0;
3452
        prev_run=0;
3453

    
3454
        for(i=start_i; i<64; i++){
3455
            int j= perm_scantable[i];
3456
            const int level= block[j];
3457
            int change, old_coeff;
3458

    
3459
            if(s->avctx->quantizer_noise_shaping < 3 && i > last_non_zero + 1)
3460
                break;
3461

    
3462
            if(level){
3463
                if(level<0) old_coeff= qmul*level - qadd;
3464
                else        old_coeff= qmul*level + qadd;
3465
                run2= run_tab[rle_index++]; //FIXME ! maybe after last
3466
            }else{
3467
                old_coeff=0;
3468
                run2--;
3469
                assert(run2>=0 || i >= last_non_zero );
3470
            }
3471

    
3472
            for(change=-1; change<=1; change+=2){
3473
                int new_level= level + change;
3474
                int score, new_coeff, unquant_change;
3475

    
3476
                score=0;
3477
                if(s->avctx->quantizer_noise_shaping < 2 && FFABS(new_level) > FFABS(level))
3478
                   continue;
3479

    
3480
                if(new_level){
3481
                    if(new_level<0) new_coeff= qmul*new_level - qadd;
3482
                    else            new_coeff= qmul*new_level + qadd;
3483
                    if(new_coeff >= 2048 || new_coeff <= -2048)
3484
                        continue;
3485
                    //FIXME check for overflow
3486

    
3487
                    if(level){
3488
                        if(level < 63 && level > -63){
3489
                            if(i < last_non_zero)
3490
                                score +=   length[UNI_AC_ENC_INDEX(run, new_level+64)]
3491
                                         - length[UNI_AC_ENC_INDEX(run, level+64)];
3492
                            else
3493
                                score +=   last_length[UNI_AC_ENC_INDEX(run, new_level+64)]
3494
                                         - last_length[UNI_AC_ENC_INDEX(run, level+64)];
3495
                        }
3496
                    }else{
3497
                        assert(FFABS(new_level)==1);
3498

    
3499
                        if(analyze_gradient){
3500
                            int g= d1[ scantable[i] ];
3501
                            if(g && (g^new_level) >= 0)
3502
                                continue;
3503
                        }
3504

    
3505
                        if(i < last_non_zero){
3506
                            int next_i= i + run2 + 1;
3507
                            int next_level= block[ perm_scantable[next_i] ] + 64;
3508

    
3509
                            if(next_level&(~127))
3510
                                next_level= 0;
3511

    
3512
                            if(next_i < last_non_zero)
3513
                                score +=   length[UNI_AC_ENC_INDEX(run, 65)]
3514
                                         + length[UNI_AC_ENC_INDEX(run2, next_level)]
3515
                                         - length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3516
                            else
3517
                                score +=  length[UNI_AC_ENC_INDEX(run, 65)]
3518
                                        + last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3519
                                        - last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3520
                        }else{
3521
                            score += last_length[UNI_AC_ENC_INDEX(run, 65)];
3522
                            if(prev_level){
3523
                                score +=  length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3524
                                        - last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3525
                            }
3526
                        }
3527
                    }
3528
                }else{
3529
                    new_coeff=0;
3530
                    assert(FFABS(level)==1);
3531

    
3532
                    if(i < last_non_zero){
3533
                        int next_i= i + run2 + 1;
3534
                        int next_level= block[ perm_scantable[next_i] ] + 64;
3535

    
3536
                        if(next_level&(~127))
3537
                            next_level= 0;
3538

    
3539
                        if(next_i < last_non_zero)
3540
                            score +=   length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3541
                                     - length[UNI_AC_ENC_INDEX(run2, next_level)]
3542
                                     - length[UNI_AC_ENC_INDEX(run, 65)];
3543
                        else
3544
                            score +=   last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3545
                                     - last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3546
                                     - length[UNI_AC_ENC_INDEX(run, 65)];
3547
                    }else{
3548
                        score += -last_length[UNI_AC_ENC_INDEX(run, 65)];
3549
                        if(prev_level){
3550
                            score +=  last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3551
                                    - length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3552
                        }
3553
                    }
3554
                }
3555

    
3556
                score *= lambda;
3557

    
3558
                unquant_change= new_coeff - old_coeff;
3559
                assert((score < 100*lambda && score > -100*lambda) || lambda==0);
3560

    
3561
                score+= s->dsp.try_8x8basis(rem, weight, basis[j], unquant_change);
3562
                if(score<best_score){
3563
                    best_score= score;
3564
                    best_coeff= i;
3565
                    best_change= change;
3566
                    best_unquant_change= unquant_change;
3567
                }
3568
            }
3569
            if(level){
3570
                prev_level= level + 64;
3571
                if(prev_level&(~127))
3572
                    prev_level= 0;
3573
                prev_run= run;
3574
                run=0;
3575
            }else{
3576
                run++;
3577
            }
3578
        }
3579
#ifdef REFINE_STATS
3580
STOP_TIMER("iterative step")}
3581
#endif
3582

    
3583
        if(best_change){
3584
            int j= perm_scantable[ best_coeff ];
3585

    
3586
            block[j] += best_change;
3587

    
3588
            if(best_coeff > last_non_zero){
3589
                last_non_zero= best_coeff;
3590
                assert(block[j]);
3591
#ifdef REFINE_STATS
3592
after_last++;
3593
#endif
3594
            }else{
3595
#ifdef REFINE_STATS
3596
if(block[j]){
3597
    if(block[j] - best_change){
3598
        if(FFABS(block[j]) > FFABS(block[j] - best_change)){
3599
            raise++;
3600
        }else{
3601
            lower++;
3602
        }
3603
    }else{
3604
        from_zero++;
3605
    }
3606
}else{
3607
    to_zero++;
3608
}
3609
#endif
3610
                for(; last_non_zero>=start_i; last_non_zero--){
3611
                    if(block[perm_scantable[last_non_zero]])
3612
                        break;
3613
                }
3614
            }
3615
#ifdef REFINE_STATS
3616
count++;
3617
if(256*256*256*64 % count == 0){
3618
    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);
3619
}
3620
#endif
3621
            run=0;
3622
            rle_index=0;
3623
            for(i=start_i; i<=last_non_zero; i++){
3624
                int j= perm_scantable[i];
3625
                const int level= block[j];
3626

    
3627
                 if(level){
3628
                     run_tab[rle_index++]=run;
3629
                     run=0;
3630
                 }else{
3631
                     run++;
3632
                 }
3633
            }
3634

    
3635
            s->dsp.add_8x8basis(rem, basis[j], best_unquant_change);
3636
        }else{
3637
            break;
3638
        }
3639
    }
3640
#ifdef REFINE_STATS
3641
if(last_non_zero>0){
3642
STOP_TIMER("iterative search")
3643
}
3644
}
3645
#endif
3646

    
3647
    return last_non_zero;
3648
}
3649

    
3650
int dct_quantize_c(MpegEncContext *s,
3651
                        DCTELEM *block, int n,
3652
                        int qscale, int *overflow)
3653
{
3654
    int i, j, level, last_non_zero, q, start_i;
3655
    const int *qmat;
3656
    const uint8_t *scantable= s->intra_scantable.scantable;
3657
    int bias;
3658
    int max=0;
3659
    unsigned int threshold1, threshold2;
3660

    
3661
    s->dsp.fdct (block);
3662

    
3663
    if(s->dct_error_sum)
3664
        s->denoise_dct(s, block);
3665

    
3666
    if (s->mb_intra) {
3667
        if (!s->h263_aic) {
3668
            if (n < 4)
3669
                q = s->y_dc_scale;
3670
            else
3671
                q = s->c_dc_scale;
3672
            q = q << 3;
3673
        } else
3674
            /* For AIC we skip quant/dequant of INTRADC */
3675
            q = 1 << 3;
3676

    
3677
        /* note: block[0] is assumed to be positive */
3678
        block[0] = (block[0] + (q >> 1)) / q;
3679
        start_i = 1;
3680
        last_non_zero = 0;
3681
        qmat = s->q_intra_matrix[qscale];
3682
        bias= s->intra_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3683
    } else {
3684
        start_i = 0;
3685
        last_non_zero = -1;
3686
        qmat = s->q_inter_matrix[qscale];
3687
        bias= s->inter_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3688
    }
3689
    threshold1= (1<<QMAT_SHIFT) - bias - 1;
3690
    threshold2= (threshold1<<1);
3691
    for(i=63;i>=start_i;i--) {
3692
        j = scantable[i];
3693
        level = block[j] * qmat[j];
3694

    
3695
        if(((unsigned)(level+threshold1))>threshold2){
3696
            last_non_zero = i;
3697
            break;
3698
        }else{
3699
            block[j]=0;
3700
        }
3701
    }
3702
    for(i=start_i; i<=last_non_zero; i++) {
3703
        j = scantable[i];
3704
        level = block[j] * qmat[j];
3705

    
3706
//        if(   bias+level >= (1<<QMAT_SHIFT)
3707
//           || bias-level >= (1<<QMAT_SHIFT)){
3708
        if(((unsigned)(level+threshold1))>threshold2){
3709
            if(level>0){
3710
                level= (bias + level)>>QMAT_SHIFT;
3711
                block[j]= level;
3712
            }else{
3713
                level= (bias - level)>>QMAT_SHIFT;
3714
                block[j]= -level;
3715
            }
3716
            max |=level;
3717
        }else{
3718
            block[j]=0;
3719
        }
3720
    }
3721
    *overflow= s->max_qcoeff < max; //overflow might have happened
3722

    
3723
    /* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */
3724
    if (s->dsp.idct_permutation_type != FF_NO_IDCT_PERM)
3725
        ff_block_permute(block, s->dsp.idct_permutation, scantable, last_non_zero);
3726

    
3727
    return last_non_zero;
3728
}
3729

    
3730
AVCodec h263_encoder = {
3731
    "h263",
3732
    CODEC_TYPE_VIDEO,
3733
    CODEC_ID_H263,
3734
    sizeof(MpegEncContext),
3735
    MPV_encode_init,
3736
    MPV_encode_picture,
3737
    MPV_encode_end,
3738
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3739
    .long_name= NULL_IF_CONFIG_SMALL("H.263 / H.263-1996"),
3740
};
3741

    
3742
AVCodec h263p_encoder = {
3743
    "h263p",
3744
    CODEC_TYPE_VIDEO,
3745
    CODEC_ID_H263P,
3746
    sizeof(MpegEncContext),
3747
    MPV_encode_init,
3748
    MPV_encode_picture,
3749
    MPV_encode_end,
3750
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3751
    .long_name= NULL_IF_CONFIG_SMALL("H.263+ / H.263-1998 / H.263 version 2"),
3752
};
3753

    
3754
AVCodec flv_encoder = {
3755
    "flv",
3756
    CODEC_TYPE_VIDEO,
3757
    CODEC_ID_FLV1,
3758
    sizeof(MpegEncContext),
3759
    MPV_encode_init,
3760
    MPV_encode_picture,
3761
    MPV_encode_end,
3762
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3763
    .long_name= NULL_IF_CONFIG_SMALL("Flash Video (FLV)"),
3764
};
3765

    
3766
AVCodec mpeg4_encoder = {
3767
    "mpeg4",
3768
    CODEC_TYPE_VIDEO,
3769
    CODEC_ID_MPEG4,
3770
    sizeof(MpegEncContext),
3771
    MPV_encode_init,
3772
    MPV_encode_picture,
3773
    MPV_encode_end,
3774
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3775
    .capabilities= CODEC_CAP_DELAY,
3776
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2"),
3777
};
3778

    
3779
AVCodec msmpeg4v1_encoder = {
3780
    "msmpeg4v1",
3781
    CODEC_TYPE_VIDEO,
3782
    CODEC_ID_MSMPEG4V1,
3783
    sizeof(MpegEncContext),
3784
    MPV_encode_init,
3785
    MPV_encode_picture,
3786
    MPV_encode_end,
3787
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3788
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 1"),
3789
};
3790

    
3791
AVCodec msmpeg4v2_encoder = {
3792
    "msmpeg4v2",
3793
    CODEC_TYPE_VIDEO,
3794
    CODEC_ID_MSMPEG4V2,
3795
    sizeof(MpegEncContext),
3796
    MPV_encode_init,
3797
    MPV_encode_picture,
3798
    MPV_encode_end,
3799
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3800
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 2"),
3801
};
3802

    
3803
AVCodec msmpeg4v3_encoder = {
3804
    "msmpeg4",
3805
    CODEC_TYPE_VIDEO,
3806
    CODEC_ID_MSMPEG4V3,
3807
    sizeof(MpegEncContext),
3808
    MPV_encode_init,
3809
    MPV_encode_picture,
3810
    MPV_encode_end,
3811
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3812
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 3"),
3813
};
3814

    
3815
AVCodec wmv1_encoder = {
3816
    "wmv1",
3817
    CODEC_TYPE_VIDEO,
3818
    CODEC_ID_WMV1,
3819
    sizeof(MpegEncContext),
3820
    MPV_encode_init,
3821
    MPV_encode_picture,
3822
    MPV_encode_end,
3823
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3824
    .long_name= NULL_IF_CONFIG_SMALL("Windows Media Video 7"),
3825
};