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ffmpeg / libavcodec / mpegvideo_enc.c @ f34121f3

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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
22
 * 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
/**
150
 * init s->current_picture.qscale_table from s->lambda_table
151
 */
152
void ff_init_qscale_tab(MpegEncContext *s){
153
    int8_t * const qscale_table= s->current_picture.qscale_table;
154
    int i;
155

    
156
    for(i=0; i<s->mb_num; i++){
157
        unsigned int lam= s->lambda_table[ s->mb_index2xy[i] ];
158
        int qp= (lam*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
159
        qscale_table[ s->mb_index2xy[i] ]= av_clip(qp, s->avctx->qmin, s->avctx->qmax);
160
    }
161
}
162

    
163
static void copy_picture_attributes(MpegEncContext *s, AVFrame *dst, AVFrame *src){
164
    int i;
165

    
166
    dst->pict_type              = src->pict_type;
167
    dst->quality                = src->quality;
168
    dst->coded_picture_number   = src->coded_picture_number;
169
    dst->display_picture_number = src->display_picture_number;
170
//    dst->reference              = src->reference;
171
    dst->pts                    = src->pts;
172
    dst->interlaced_frame       = src->interlaced_frame;
173
    dst->top_field_first        = src->top_field_first;
174

    
175
    if(s->avctx->me_threshold){
176
        if(!src->motion_val[0])
177
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_val not set!\n");
178
        if(!src->mb_type)
179
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.mb_type not set!\n");
180
        if(!src->ref_index[0])
181
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.ref_index not set!\n");
182
        if(src->motion_subsample_log2 != dst->motion_subsample_log2)
183
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_subsample_log2 doesn't match! (%d!=%d)\n",
184
            src->motion_subsample_log2, dst->motion_subsample_log2);
185

    
186
        memcpy(dst->mb_type, src->mb_type, s->mb_stride * s->mb_height * sizeof(dst->mb_type[0]));
187

    
188
        for(i=0; i<2; i++){
189
            int stride= ((16*s->mb_width )>>src->motion_subsample_log2) + 1;
190
            int height= ((16*s->mb_height)>>src->motion_subsample_log2);
191

    
192
            if(src->motion_val[i] && src->motion_val[i] != dst->motion_val[i]){
193
                memcpy(dst->motion_val[i], src->motion_val[i], 2*stride*height*sizeof(int16_t));
194
            }
195
            if(src->ref_index[i] && src->ref_index[i] != dst->ref_index[i]){
196
                memcpy(dst->ref_index[i], src->ref_index[i], s->b8_stride*2*s->mb_height*sizeof(int8_t));
197
            }
198
        }
199
    }
200
}
201

    
202
static void update_duplicate_context_after_me(MpegEncContext *dst, MpegEncContext *src){
203
#define COPY(a) dst->a= src->a
204
    COPY(pict_type);
205
    COPY(current_picture);
206
    COPY(f_code);
207
    COPY(b_code);
208
    COPY(qscale);
209
    COPY(lambda);
210
    COPY(lambda2);
211
    COPY(picture_in_gop_number);
212
    COPY(gop_picture_number);
213
    COPY(frame_pred_frame_dct); //FIXME don't set in encode_header
214
    COPY(progressive_frame); //FIXME don't set in encode_header
215
    COPY(partitioned_frame); //FIXME don't set in encode_header
216
#undef COPY
217
}
218

    
219
/**
220
 * sets the given MpegEncContext to defaults for encoding.
221
 * the changed fields will not depend upon the prior state of the MpegEncContext.
222
 */
223
static void MPV_encode_defaults(MpegEncContext *s){
224
    int i;
225
    MPV_common_defaults(s);
226

    
227
    for(i=-16; i<16; i++){
228
        default_fcode_tab[i + MAX_MV]= 1;
229
    }
230
    s->me.mv_penalty= default_mv_penalty;
231
    s->fcode_tab= default_fcode_tab;
232
}
233

    
234
/* init video encoder */
235
av_cold int MPV_encode_init(AVCodecContext *avctx)
236
{
237
    MpegEncContext *s = avctx->priv_data;
238
    int i;
239
    int chroma_h_shift, chroma_v_shift;
240

    
241
    MPV_encode_defaults(s);
242

    
243
    switch (avctx->codec_id) {
244
    case CODEC_ID_MPEG2VIDEO:
245
        if(avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P){
246
            av_log(avctx, AV_LOG_ERROR, "only YUV420 and YUV422 are supported\n");
247
            return -1;
248
        }
249
        break;
250
    case CODEC_ID_LJPEG:
251
    case CODEC_ID_MJPEG:
252
        if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P && avctx->pix_fmt != PIX_FMT_RGB32 &&
253
           ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P) || avctx->strict_std_compliance>FF_COMPLIANCE_INOFFICIAL)){
254
            av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n");
255
            return -1;
256
        }
257
        break;
258
    default:
259
        if(avctx->pix_fmt != PIX_FMT_YUV420P){
260
            av_log(avctx, AV_LOG_ERROR, "only YUV420 is supported\n");
261
            return -1;
262
        }
263
    }
264

    
265
    switch (avctx->pix_fmt) {
266
    case PIX_FMT_YUVJ422P:
267
    case PIX_FMT_YUV422P:
268
        s->chroma_format = CHROMA_422;
269
        break;
270
    case PIX_FMT_YUVJ420P:
271
    case PIX_FMT_YUV420P:
272
    default:
273
        s->chroma_format = CHROMA_420;
274
        break;
275
    }
276

    
277
    s->bit_rate = avctx->bit_rate;
278
    s->width = avctx->width;
279
    s->height = avctx->height;
280
    if(avctx->gop_size > 600 && avctx->strict_std_compliance>FF_COMPLIANCE_EXPERIMENTAL){
281
        av_log(avctx, AV_LOG_ERROR, "Warning keyframe interval too large! reducing it ...\n");
282
        avctx->gop_size=600;
283
    }
284
    s->gop_size = avctx->gop_size;
285
    s->avctx = avctx;
286
    s->flags= avctx->flags;
287
    s->flags2= avctx->flags2;
288
    s->max_b_frames= avctx->max_b_frames;
289
    s->codec_id= avctx->codec->id;
290
    s->luma_elim_threshold  = avctx->luma_elim_threshold;
291
    s->chroma_elim_threshold= avctx->chroma_elim_threshold;
292
    s->strict_std_compliance= avctx->strict_std_compliance;
293
    s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
294
    s->quarter_sample= (avctx->flags & CODEC_FLAG_QPEL)!=0;
295
    s->mpeg_quant= avctx->mpeg_quant;
296
    s->rtp_mode= !!avctx->rtp_payload_size;
297
    s->intra_dc_precision= avctx->intra_dc_precision;
298
    s->user_specified_pts = AV_NOPTS_VALUE;
299

    
300
    if (s->gop_size <= 1) {
301
        s->intra_only = 1;
302
        s->gop_size = 12;
303
    } else {
304
        s->intra_only = 0;
305
    }
306

    
307
    s->me_method = avctx->me_method;
308

    
309
    /* Fixed QSCALE */
310
    s->fixed_qscale = !!(avctx->flags & CODEC_FLAG_QSCALE);
311

    
312
    s->adaptive_quant= (   s->avctx->lumi_masking
313
                        || s->avctx->dark_masking
314
                        || s->avctx->temporal_cplx_masking
315
                        || s->avctx->spatial_cplx_masking
316
                        || s->avctx->p_masking
317
                        || s->avctx->border_masking
318
                        || (s->flags&CODEC_FLAG_QP_RD))
319
                       && !s->fixed_qscale;
320

    
321
    s->obmc= !!(s->flags & CODEC_FLAG_OBMC);
322
    s->loop_filter= !!(s->flags & CODEC_FLAG_LOOP_FILTER);
323
    s->alternate_scan= !!(s->flags & CODEC_FLAG_ALT_SCAN);
324
    s->intra_vlc_format= !!(s->flags2 & CODEC_FLAG2_INTRA_VLC);
325
    s->q_scale_type= !!(s->flags2 & CODEC_FLAG2_NON_LINEAR_QUANT);
326

    
327
    if(avctx->rc_max_rate && !avctx->rc_buffer_size){
328
        av_log(avctx, AV_LOG_ERROR, "a vbv buffer size is needed, for encoding with a maximum bitrate\n");
329
        return -1;
330
    }
331

    
332
    if(avctx->rc_min_rate && avctx->rc_max_rate != avctx->rc_min_rate){
333
        av_log(avctx, AV_LOG_INFO, "Warning min_rate > 0 but min_rate != max_rate isn't recommended!\n");
334
    }
335

    
336
    if(avctx->rc_min_rate && avctx->rc_min_rate > avctx->bit_rate){
337
        av_log(avctx, AV_LOG_ERROR, "bitrate below min bitrate\n");
338
        return -1;
339
    }
340

    
341
    if(avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate){
342
        av_log(avctx, AV_LOG_INFO, "bitrate above max bitrate\n");
343
        return -1;
344
    }
345

    
346
    if(avctx->rc_max_rate && avctx->rc_max_rate == avctx->bit_rate && avctx->rc_max_rate != avctx->rc_min_rate){
347
        av_log(avctx, AV_LOG_INFO, "impossible bitrate constraints, this will fail\n");
348
    }
349

    
350
    if(avctx->rc_buffer_size && avctx->bit_rate*av_q2d(avctx->time_base) > avctx->rc_buffer_size){
351
        av_log(avctx, AV_LOG_ERROR, "VBV buffer too small for bitrate\n");
352
        return -1;
353
    }
354

    
355
    if(avctx->bit_rate*av_q2d(avctx->time_base) > avctx->bit_rate_tolerance){
356
        av_log(avctx, AV_LOG_ERROR, "bitrate tolerance too small for bitrate\n");
357
        return -1;
358
    }
359

    
360
    if(   s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate
361
       && (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO)
362
       && 90000LL * (avctx->rc_buffer_size-1) > s->avctx->rc_max_rate*0xFFFFLL){
363

    
364
        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");
365
    }
366

    
367
    if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4
368
       && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P && s->codec_id != CODEC_ID_FLV1){
369
        av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n");
370
        return -1;
371
    }
372

    
373
    if(s->obmc && s->avctx->mb_decision != FF_MB_DECISION_SIMPLE){
374
        av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with simple mb decision\n");
375
        return -1;
376
    }
377

    
378
    if(s->obmc && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P){
379
        av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with H263(+)\n");
380
        return -1;
381
    }
382

    
383
    if(s->quarter_sample && s->codec_id != CODEC_ID_MPEG4){
384
        av_log(avctx, AV_LOG_ERROR, "qpel not supported by codec\n");
385
        return -1;
386
    }
387

    
388
    if(s->data_partitioning && s->codec_id != CODEC_ID_MPEG4){
389
        av_log(avctx, AV_LOG_ERROR, "data partitioning not supported by codec\n");
390
        return -1;
391
    }
392

    
393
    if(s->max_b_frames && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO){
394
        av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n");
395
        return -1;
396
    }
397

    
398
    if ((s->codec_id == CODEC_ID_MPEG4 || s->codec_id == CODEC_ID_H263 ||
399
         s->codec_id == CODEC_ID_H263P) &&
400
        (avctx->sample_aspect_ratio.num > 255 || avctx->sample_aspect_ratio.den > 255)) {
401
        av_log(avctx, AV_LOG_ERROR, "Invalid pixel aspect ratio %i/%i, limit is 255/255\n",
402
               avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den);
403
        return -1;
404
    }
405

    
406
    if((s->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN))
407
       && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG2VIDEO){
408
        av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n");
409
        return -1;
410
    }
411

    
412
    if(s->mpeg_quant && s->codec_id != CODEC_ID_MPEG4){ //FIXME mpeg2 uses that too
413
        av_log(avctx, AV_LOG_ERROR, "mpeg2 style quantization not supported by codec\n");
414
        return -1;
415
    }
416

    
417
    if((s->flags & CODEC_FLAG_CBP_RD) && !avctx->trellis){
418
        av_log(avctx, AV_LOG_ERROR, "CBP RD needs trellis quant\n");
419
        return -1;
420
    }
421

    
422
    if((s->flags & CODEC_FLAG_QP_RD) && s->avctx->mb_decision != FF_MB_DECISION_RD){
423
        av_log(avctx, AV_LOG_ERROR, "QP RD needs mbd=2\n");
424
        return -1;
425
    }
426

    
427
    if(s->avctx->scenechange_threshold < 1000000000 && (s->flags & CODEC_FLAG_CLOSED_GOP)){
428
        av_log(avctx, AV_LOG_ERROR, "closed gop with scene change detection are not supported yet, set threshold to 1000000000\n");
429
        return -1;
430
    }
431

    
432
    if((s->flags2 & CODEC_FLAG2_INTRA_VLC) && s->codec_id != CODEC_ID_MPEG2VIDEO){
433
        av_log(avctx, AV_LOG_ERROR, "intra vlc table not supported by codec\n");
434
        return -1;
435
    }
436

    
437
    if(s->flags & CODEC_FLAG_LOW_DELAY){
438
        if (s->codec_id != CODEC_ID_MPEG2VIDEO){
439
            av_log(avctx, AV_LOG_ERROR, "low delay forcing is only available for mpeg2\n");
440
            return -1;
441
        }
442
        if (s->max_b_frames != 0){
443
            av_log(avctx, AV_LOG_ERROR, "b frames cannot be used with low delay\n");
444
            return -1;
445
        }
446
    }
447

    
448
    if(s->q_scale_type == 1){
449
        if(s->codec_id != CODEC_ID_MPEG2VIDEO){
450
            av_log(avctx, AV_LOG_ERROR, "non linear quant is only available for mpeg2\n");
451
            return -1;
452
        }
453
        if(avctx->qmax > 12){
454
            av_log(avctx, AV_LOG_ERROR, "non linear quant only supports qmax <= 12 currently\n");
455
            return -1;
456
        }
457
    }
458

    
459
    if(s->avctx->thread_count > 1 && s->codec_id != CODEC_ID_MPEG4
460
       && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO
461
       && (s->codec_id != CODEC_ID_H263P || !(s->flags & CODEC_FLAG_H263P_SLICE_STRUCT))){
462
        av_log(avctx, AV_LOG_ERROR, "multi threaded encoding not supported by codec\n");
463
        return -1;
464
    }
465

    
466
    if(s->avctx->thread_count < 1){
467
        av_log(avctx, AV_LOG_ERROR, "automatic thread number detection not supported by codec, patch welcome\n");
468
        return -1;
469
    }
470

    
471
    if(s->avctx->thread_count > 1)
472
        s->rtp_mode= 1;
473

    
474
    if(!avctx->time_base.den || !avctx->time_base.num){
475
        av_log(avctx, AV_LOG_ERROR, "framerate not set\n");
476
        return -1;
477
    }
478

    
479
    i= (INT_MAX/2+128)>>8;
480
    if(avctx->me_threshold >= i){
481
        av_log(avctx, AV_LOG_ERROR, "me_threshold too large, max is %d\n", i - 1);
482
        return -1;
483
    }
484
    if(avctx->mb_threshold >= i){
485
        av_log(avctx, AV_LOG_ERROR, "mb_threshold too large, max is %d\n", i - 1);
486
        return -1;
487
    }
488

    
489
    if(avctx->b_frame_strategy && (avctx->flags&CODEC_FLAG_PASS2)){
490
        av_log(avctx, AV_LOG_INFO, "notice: b_frame_strategy only affects the first pass\n");
491
        avctx->b_frame_strategy = 0;
492
    }
493

    
494
    i= av_gcd(avctx->time_base.den, avctx->time_base.num);
495
    if(i > 1){
496
        av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n");
497
        avctx->time_base.den /= i;
498
        avctx->time_base.num /= i;
499
//        return -1;
500
    }
501

    
502
    if(s->codec_id==CODEC_ID_MJPEG){
503
        s->intra_quant_bias= 1<<(QUANT_BIAS_SHIFT-1); //(a + x/2)/x
504
        s->inter_quant_bias= 0;
505
    }else if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO){
506
        s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x
507
        s->inter_quant_bias= 0;
508
    }else{
509
        s->intra_quant_bias=0;
510
        s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x
511
    }
512

    
513
    if(avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
514
        s->intra_quant_bias= avctx->intra_quant_bias;
515
    if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)
516
        s->inter_quant_bias= avctx->inter_quant_bias;
517

    
518
    avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift);
519

    
520
    if(avctx->codec_id == CODEC_ID_MPEG4 && s->avctx->time_base.den > (1<<16)-1){
521
        av_log(avctx, AV_LOG_ERROR, "timebase not supported by mpeg 4 standard\n");
522
        return -1;
523
    }
524
    s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1;
525

    
526
    switch(avctx->codec->id) {
527
    case CODEC_ID_MPEG1VIDEO:
528
        s->out_format = FMT_MPEG1;
529
        s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
530
        avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
531
        break;
532
    case CODEC_ID_MPEG2VIDEO:
533
        s->out_format = FMT_MPEG1;
534
        s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
535
        avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
536
        s->rtp_mode= 1;
537
        break;
538
    case CODEC_ID_LJPEG:
539
    case CODEC_ID_MJPEG:
540
        s->out_format = FMT_MJPEG;
541
        s->intra_only = 1; /* force intra only for jpeg */
542
        if(avctx->codec->id == CODEC_ID_LJPEG && avctx->pix_fmt == PIX_FMT_BGRA){
543
            s->mjpeg_vsample[0] = s->mjpeg_hsample[0] =
544
            s->mjpeg_vsample[1] = s->mjpeg_hsample[1] =
545
            s->mjpeg_vsample[2] = s->mjpeg_hsample[2] = 1;
546
        }else{
547
            s->mjpeg_vsample[0] = 2;
548
            s->mjpeg_vsample[1] = 2>>chroma_v_shift;
549
            s->mjpeg_vsample[2] = 2>>chroma_v_shift;
550
            s->mjpeg_hsample[0] = 2;
551
            s->mjpeg_hsample[1] = 2>>chroma_h_shift;
552
            s->mjpeg_hsample[2] = 2>>chroma_h_shift;
553
        }
554
        if (!(CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER)
555
            || ff_mjpeg_encode_init(s) < 0)
556
            return -1;
557
        avctx->delay=0;
558
        s->low_delay=1;
559
        break;
560
    case CODEC_ID_H261:
561
        if (!CONFIG_H261_ENCODER)  return -1;
562
        if (ff_h261_get_picture_format(s->width, s->height) < 0) {
563
            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);
564
            return -1;
565
        }
566
        s->out_format = FMT_H261;
567
        avctx->delay=0;
568
        s->low_delay=1;
569
        break;
570
    case CODEC_ID_H263:
571
        if (!CONFIG_H263_ENCODER)  return -1;
572
        if (h263_get_picture_format(s->width, s->height) == 7) {
573
            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);
574
            return -1;
575
        }
576
        s->out_format = FMT_H263;
577
        s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
578
        avctx->delay=0;
579
        s->low_delay=1;
580
        break;
581
    case CODEC_ID_H263P:
582
        s->out_format = FMT_H263;
583
        s->h263_plus = 1;
584
        /* Fx */
585
        s->umvplus = (avctx->flags & CODEC_FLAG_H263P_UMV) ? 1:0;
586
        s->h263_aic= (avctx->flags & CODEC_FLAG_AC_PRED) ? 1:0;
587
        s->modified_quant= s->h263_aic;
588
        s->alt_inter_vlc= (avctx->flags & CODEC_FLAG_H263P_AIV) ? 1:0;
589
        s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
590
        s->loop_filter= (avctx->flags & CODEC_FLAG_LOOP_FILTER) ? 1:0;
591
        s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
592
        s->h263_slice_structured= (s->flags & CODEC_FLAG_H263P_SLICE_STRUCT) ? 1:0;
593

    
594
        /* /Fx */
595
        /* These are just to be sure */
596
        avctx->delay=0;
597
        s->low_delay=1;
598
        break;
599
    case CODEC_ID_FLV1:
600
        s->out_format = FMT_H263;
601
        s->h263_flv = 2; /* format = 1; 11-bit codes */
602
        s->unrestricted_mv = 1;
603
        s->rtp_mode=0; /* don't allow GOB */
604
        avctx->delay=0;
605
        s->low_delay=1;
606
        break;
607
    case CODEC_ID_RV10:
608
        s->out_format = FMT_H263;
609
        avctx->delay=0;
610
        s->low_delay=1;
611
        break;
612
    case CODEC_ID_RV20:
613
        s->out_format = FMT_H263;
614
        avctx->delay=0;
615
        s->low_delay=1;
616
        s->modified_quant=1;
617
        s->h263_aic=1;
618
        s->h263_plus=1;
619
        s->loop_filter=1;
620
        s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
621
        break;
622
    case CODEC_ID_MPEG4:
623
        s->out_format = FMT_H263;
624
        s->h263_pred = 1;
625
        s->unrestricted_mv = 1;
626
        s->low_delay= s->max_b_frames ? 0 : 1;
627
        avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
628
        break;
629
    case CODEC_ID_MSMPEG4V1:
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= 1;
635
        avctx->delay=0;
636
        s->low_delay=1;
637
        break;
638
    case CODEC_ID_MSMPEG4V2:
639
        s->out_format = FMT_H263;
640
        s->h263_msmpeg4 = 1;
641
        s->h263_pred = 1;
642
        s->unrestricted_mv = 1;
643
        s->msmpeg4_version= 2;
644
        avctx->delay=0;
645
        s->low_delay=1;
646
        break;
647
    case CODEC_ID_MSMPEG4V3:
648
        s->out_format = FMT_H263;
649
        s->h263_msmpeg4 = 1;
650
        s->h263_pred = 1;
651
        s->unrestricted_mv = 1;
652
        s->msmpeg4_version= 3;
653
        s->flipflop_rounding=1;
654
        avctx->delay=0;
655
        s->low_delay=1;
656
        break;
657
    case CODEC_ID_WMV1:
658
        s->out_format = FMT_H263;
659
        s->h263_msmpeg4 = 1;
660
        s->h263_pred = 1;
661
        s->unrestricted_mv = 1;
662
        s->msmpeg4_version= 4;
663
        s->flipflop_rounding=1;
664
        avctx->delay=0;
665
        s->low_delay=1;
666
        break;
667
    case CODEC_ID_WMV2:
668
        s->out_format = FMT_H263;
669
        s->h263_msmpeg4 = 1;
670
        s->h263_pred = 1;
671
        s->unrestricted_mv = 1;
672
        s->msmpeg4_version= 5;
673
        s->flipflop_rounding=1;
674
        avctx->delay=0;
675
        s->low_delay=1;
676
        break;
677
    default:
678
        return -1;
679
    }
680

    
681
    avctx->has_b_frames= !s->low_delay;
682

    
683
    s->encoding = 1;
684

    
685
    s->progressive_frame=
686
    s->progressive_sequence= !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN));
687

    
688
    /* init */
689
    if (MPV_common_init(s) < 0)
690
        return -1;
691

    
692
    if(!s->dct_quantize)
693
        s->dct_quantize = dct_quantize_c;
694
    if(!s->denoise_dct)
695
        s->denoise_dct = denoise_dct_c;
696
    s->fast_dct_quantize = s->dct_quantize;
697
    if(avctx->trellis)
698
        s->dct_quantize = dct_quantize_trellis_c;
699

    
700
    if((CONFIG_H263P_ENCODER || CONFIG_RV20_ENCODER) && s->modified_quant)
701
        s->chroma_qscale_table= ff_h263_chroma_qscale_table;
702

    
703
    s->quant_precision=5;
704

    
705
    ff_set_cmp(&s->dsp, s->dsp.ildct_cmp, s->avctx->ildct_cmp);
706
    ff_set_cmp(&s->dsp, s->dsp.frame_skip_cmp, s->avctx->frame_skip_cmp);
707

    
708
    if (CONFIG_H261_ENCODER && s->out_format == FMT_H261)
709
        ff_h261_encode_init(s);
710
    if (CONFIG_H263_ENCODER && s->out_format == FMT_H263)
711
        h263_encode_init(s);
712
    if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version)
713
        ff_msmpeg4_encode_init(s);
714
    if ((CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
715
        && s->out_format == FMT_MPEG1)
716
        ff_mpeg1_encode_init(s);
717

    
718
    /* init q matrix */
719
    for(i=0;i<64;i++) {
720
        int j= s->dsp.idct_permutation[i];
721
        if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){
722
            s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
723
            s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
724
        }else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){
725
            s->intra_matrix[j] =
726
            s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
727
        }else
728
        { /* mpeg1/2 */
729
            s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
730
            s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
731
        }
732
        if(s->avctx->intra_matrix)
733
            s->intra_matrix[j] = s->avctx->intra_matrix[i];
734
        if(s->avctx->inter_matrix)
735
            s->inter_matrix[j] = s->avctx->inter_matrix[i];
736
    }
737

    
738
    /* precompute matrix */
739
    /* for mjpeg, we do include qscale in the matrix */
740
    if (s->out_format != FMT_MJPEG) {
741
        ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
742
                       s->intra_matrix, s->intra_quant_bias, avctx->qmin, 31, 1);
743
        ff_convert_matrix(&s->dsp, s->q_inter_matrix, s->q_inter_matrix16,
744
                       s->inter_matrix, s->inter_quant_bias, avctx->qmin, 31, 0);
745
    }
746

    
747
    if(ff_rate_control_init(s) < 0)
748
        return -1;
749

    
750
    return 0;
751
}
752

    
753
av_cold int MPV_encode_end(AVCodecContext *avctx)
754
{
755
    MpegEncContext *s = avctx->priv_data;
756

    
757
    ff_rate_control_uninit(s);
758

    
759
    MPV_common_end(s);
760
    if ((CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER) && s->out_format == FMT_MJPEG)
761
        ff_mjpeg_encode_close(s);
762

    
763
    av_freep(&avctx->extradata);
764

    
765
    return 0;
766
}
767

    
768
static int get_sae(uint8_t *src, int ref, int stride){
769
    int x,y;
770
    int acc=0;
771

    
772
    for(y=0; y<16; y++){
773
        for(x=0; x<16; x++){
774
            acc+= FFABS(src[x+y*stride] - ref);
775
        }
776
    }
777

    
778
    return acc;
779
}
780

    
781
static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride){
782
    int x, y, w, h;
783
    int acc=0;
784

    
785
    w= s->width &~15;
786
    h= s->height&~15;
787

    
788
    for(y=0; y<h; y+=16){
789
        for(x=0; x<w; x+=16){
790
            int offset= x + y*stride;
791
            int sad = s->dsp.sad[0](NULL, src + offset, ref + offset, stride, 16);
792
            int mean= (s->dsp.pix_sum(src + offset, stride) + 128)>>8;
793
            int sae = get_sae(src + offset, mean, stride);
794

    
795
            acc+= sae + 500 < sad;
796
        }
797
    }
798
    return acc;
799
}
800

    
801

    
802
static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
803
    AVFrame *pic=NULL;
804
    int64_t pts;
805
    int i;
806
    const int encoding_delay= s->max_b_frames;
807
    int direct=1;
808

    
809
    if(pic_arg){
810
        pts= pic_arg->pts;
811
        pic_arg->display_picture_number= s->input_picture_number++;
812

    
813
        if(pts != AV_NOPTS_VALUE){
814
            if(s->user_specified_pts != AV_NOPTS_VALUE){
815
                int64_t time= pts;
816
                int64_t last= s->user_specified_pts;
817

    
818
                if(time <= last){
819
                    av_log(s->avctx, AV_LOG_ERROR, "Error, Invalid timestamp=%"PRId64", last=%"PRId64"\n", pts, s->user_specified_pts);
820
                    return -1;
821
                }
822
            }
823
            s->user_specified_pts= pts;
824
        }else{
825
            if(s->user_specified_pts != AV_NOPTS_VALUE){
826
                s->user_specified_pts=
827
                pts= s->user_specified_pts + 1;
828
                av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%"PRId64")\n", pts);
829
            }else{
830
                pts= pic_arg->display_picture_number;
831
            }
832
        }
833
    }
834

    
835
  if(pic_arg){
836
    if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0;
837
    if(pic_arg->linesize[0] != s->linesize) direct=0;
838
    if(pic_arg->linesize[1] != s->uvlinesize) direct=0;
839
    if(pic_arg->linesize[2] != s->uvlinesize) direct=0;
840

    
841
//    av_log(AV_LOG_DEBUG, "%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize);
842

    
843
    if(direct){
844
        i= ff_find_unused_picture(s, 1);
845

    
846
        pic= (AVFrame*)&s->picture[i];
847
        pic->reference= 3;
848

    
849
        for(i=0; i<4; i++){
850
            pic->data[i]= pic_arg->data[i];
851
            pic->linesize[i]= pic_arg->linesize[i];
852
        }
853
        ff_alloc_picture(s, (Picture*)pic, 1);
854
    }else{
855
        i= ff_find_unused_picture(s, 0);
856

    
857
        pic= (AVFrame*)&s->picture[i];
858
        pic->reference= 3;
859

    
860
        ff_alloc_picture(s, (Picture*)pic, 0);
861

    
862
        if(   pic->data[0] + INPLACE_OFFSET == pic_arg->data[0]
863
           && pic->data[1] + INPLACE_OFFSET == pic_arg->data[1]
864
           && pic->data[2] + INPLACE_OFFSET == pic_arg->data[2]){
865
       // empty
866
        }else{
867
            int h_chroma_shift, v_chroma_shift;
868
            avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
869

    
870
            for(i=0; i<3; i++){
871
                int src_stride= pic_arg->linesize[i];
872
                int dst_stride= i ? s->uvlinesize : s->linesize;
873
                int h_shift= i ? h_chroma_shift : 0;
874
                int v_shift= i ? v_chroma_shift : 0;
875
                int w= s->width >>h_shift;
876
                int h= s->height>>v_shift;
877
                uint8_t *src= pic_arg->data[i];
878
                uint8_t *dst= pic->data[i];
879

    
880
                if(!s->avctx->rc_buffer_size)
881
                    dst +=INPLACE_OFFSET;
882

    
883
                if(src_stride==dst_stride)
884
                    memcpy(dst, src, src_stride*h);
885
                else{
886
                    while(h--){
887
                        memcpy(dst, src, w);
888
                        dst += dst_stride;
889
                        src += src_stride;
890
                    }
891
                }
892
            }
893
        }
894
    }
895
    copy_picture_attributes(s, pic, pic_arg);
896
    pic->pts= pts; //we set this here to avoid modifiying pic_arg
897
  }
898

    
899
    /* shift buffer entries */
900
    for(i=1; i<MAX_PICTURE_COUNT /*s->encoding_delay+1*/; i++)
901
        s->input_picture[i-1]= s->input_picture[i];
902

    
903
    s->input_picture[encoding_delay]= (Picture*)pic;
904

    
905
    return 0;
906
}
907

    
908
static int skip_check(MpegEncContext *s, Picture *p, Picture *ref){
909
    int x, y, plane;
910
    int score=0;
911
    int64_t score64=0;
912

    
913
    for(plane=0; plane<3; plane++){
914
        const int stride= p->linesize[plane];
915
        const int bw= plane ? 1 : 2;
916
        for(y=0; y<s->mb_height*bw; y++){
917
            for(x=0; x<s->mb_width*bw; x++){
918
                int off= p->type == FF_BUFFER_TYPE_SHARED ? 0: 16;
919
                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);
920

    
921
                switch(s->avctx->frame_skip_exp){
922
                    case 0: score= FFMAX(score, v); break;
923
                    case 1: score+= FFABS(v);break;
924
                    case 2: score+= v*v;break;
925
                    case 3: score64+= FFABS(v*v*(int64_t)v);break;
926
                    case 4: score64+= v*v*(int64_t)(v*v);break;
927
                }
928
            }
929
        }
930
    }
931

    
932
    if(score) score64= score;
933

    
934
    if(score64 < s->avctx->frame_skip_threshold)
935
        return 1;
936
    if(score64 < ((s->avctx->frame_skip_factor * (int64_t)s->lambda)>>8))
937
        return 1;
938
    return 0;
939
}
940

    
941
static int estimate_best_b_count(MpegEncContext *s){
942
    AVCodec *codec= avcodec_find_encoder(s->avctx->codec_id);
943
    AVCodecContext *c= avcodec_alloc_context();
944
    AVFrame input[FF_MAX_B_FRAMES+2];
945
    const int scale= s->avctx->brd_scale;
946
    int i, j, out_size, p_lambda, b_lambda, lambda2;
947
    int outbuf_size= s->width * s->height; //FIXME
948
    uint8_t *outbuf= av_malloc(outbuf_size);
949
    int64_t best_rd= INT64_MAX;
950
    int best_b_count= -1;
951

    
952
    assert(scale>=0 && scale <=3);
953

    
954
//    emms_c();
955
    p_lambda= s->last_lambda_for[FF_P_TYPE]; //s->next_picture_ptr->quality;
956
    b_lambda= s->last_lambda_for[FF_B_TYPE]; //p_lambda *FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset;
957
    if(!b_lambda) b_lambda= p_lambda; //FIXME we should do this somewhere else
958
    lambda2= (b_lambda*b_lambda + (1<<FF_LAMBDA_SHIFT)/2 ) >> FF_LAMBDA_SHIFT;
959

    
960
    c->width = s->width >> scale;
961
    c->height= s->height>> scale;
962
    c->flags= CODEC_FLAG_QSCALE | CODEC_FLAG_PSNR | CODEC_FLAG_INPUT_PRESERVED /*| CODEC_FLAG_EMU_EDGE*/;
963
    c->flags|= s->avctx->flags & CODEC_FLAG_QPEL;
964
    c->mb_decision= s->avctx->mb_decision;
965
    c->me_cmp= s->avctx->me_cmp;
966
    c->mb_cmp= s->avctx->mb_cmp;
967
    c->me_sub_cmp= s->avctx->me_sub_cmp;
968
    c->pix_fmt = PIX_FMT_YUV420P;
969
    c->time_base= s->avctx->time_base;
970
    c->max_b_frames= s->max_b_frames;
971

    
972
    if (avcodec_open(c, codec) < 0)
973
        return -1;
974

    
975
    for(i=0; i<s->max_b_frames+2; i++){
976
        int ysize= c->width*c->height;
977
        int csize= (c->width/2)*(c->height/2);
978
        Picture pre_input, *pre_input_ptr= i ? s->input_picture[i-1] : s->next_picture_ptr;
979

    
980
        avcodec_get_frame_defaults(&input[i]);
981
        input[i].data[0]= av_malloc(ysize + 2*csize);
982
        input[i].data[1]= input[i].data[0] + ysize;
983
        input[i].data[2]= input[i].data[1] + csize;
984
        input[i].linesize[0]= c->width;
985
        input[i].linesize[1]=
986
        input[i].linesize[2]= c->width/2;
987

    
988
        if(pre_input_ptr && (!i || s->input_picture[i-1])) {
989
            pre_input= *pre_input_ptr;
990

    
991
            if(pre_input.type != FF_BUFFER_TYPE_SHARED && i) {
992
                pre_input.data[0]+=INPLACE_OFFSET;
993
                pre_input.data[1]+=INPLACE_OFFSET;
994
                pre_input.data[2]+=INPLACE_OFFSET;
995
            }
996

    
997
            s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0], pre_input.data[0], pre_input.linesize[0], c->width, c->height);
998
            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);
999
            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);
1000
        }
1001
    }
1002

    
1003
    for(j=0; j<s->max_b_frames+1; j++){
1004
        int64_t rd=0;
1005

    
1006
        if(!s->input_picture[j])
1007
            break;
1008

    
1009
        c->error[0]= c->error[1]= c->error[2]= 0;
1010

    
1011
        input[0].pict_type= FF_I_TYPE;
1012
        input[0].quality= 1 * FF_QP2LAMBDA;
1013
        out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[0]);
1014
//        rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT;
1015

    
1016
        for(i=0; i<s->max_b_frames+1; i++){
1017
            int is_p= i % (j+1) == j || i==s->max_b_frames;
1018

    
1019
            input[i+1].pict_type= is_p ? FF_P_TYPE : FF_B_TYPE;
1020
            input[i+1].quality= is_p ? p_lambda : b_lambda;
1021
            out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[i+1]);
1022
            rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1023
        }
1024

    
1025
        /* get the delayed frames */
1026
        while(out_size){
1027
            out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);
1028
            rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1029
        }
1030

    
1031
        rd += c->error[0] + c->error[1] + c->error[2];
1032

    
1033
        if(rd < best_rd){
1034
            best_rd= rd;
1035
            best_b_count= j;
1036
        }
1037
    }
1038

    
1039
    av_freep(&outbuf);
1040
    avcodec_close(c);
1041
    av_freep(&c);
1042

    
1043
    for(i=0; i<s->max_b_frames+2; i++){
1044
        av_freep(&input[i].data[0]);
1045
    }
1046

    
1047
    return best_b_count;
1048
}
1049

    
1050
static void select_input_picture(MpegEncContext *s){
1051
    int i;
1052

    
1053
    for(i=1; i<MAX_PICTURE_COUNT; i++)
1054
        s->reordered_input_picture[i-1]= s->reordered_input_picture[i];
1055
    s->reordered_input_picture[MAX_PICTURE_COUNT-1]= NULL;
1056

    
1057
    /* set next picture type & ordering */
1058
    if(s->reordered_input_picture[0]==NULL && s->input_picture[0]){
1059
        if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture_ptr==NULL || s->intra_only){
1060
            s->reordered_input_picture[0]= s->input_picture[0];
1061
            s->reordered_input_picture[0]->pict_type= FF_I_TYPE;
1062
            s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1063
        }else{
1064
            int b_frames;
1065

    
1066
            if(s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor){
1067
                if(s->picture_in_gop_number < s->gop_size && skip_check(s, s->input_picture[0], s->next_picture_ptr)){
1068
                //FIXME check that te gop check above is +-1 correct
1069
//av_log(NULL, AV_LOG_DEBUG, "skip %p %"PRId64"\n", s->input_picture[0]->data[0], s->input_picture[0]->pts);
1070

    
1071
                    if(s->input_picture[0]->type == FF_BUFFER_TYPE_SHARED){
1072
                        for(i=0; i<4; i++)
1073
                            s->input_picture[0]->data[i]= NULL;
1074
                        s->input_picture[0]->type= 0;
1075
                    }else{
1076
                        assert(   s->input_picture[0]->type==FF_BUFFER_TYPE_USER
1077
                               || s->input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1078

    
1079
                        s->avctx->release_buffer(s->avctx, (AVFrame*)s->input_picture[0]);
1080
                    }
1081

    
1082
                    emms_c();
1083
                    ff_vbv_update(s, 0);
1084

    
1085
                    goto no_output_pic;
1086
                }
1087
            }
1088

    
1089
            if(s->flags&CODEC_FLAG_PASS2){
1090
                for(i=0; i<s->max_b_frames+1; i++){
1091
                    int pict_num= s->input_picture[0]->display_picture_number + i;
1092

    
1093
                    if(pict_num >= s->rc_context.num_entries)
1094
                        break;
1095
                    if(!s->input_picture[i]){
1096
                        s->rc_context.entry[pict_num-1].new_pict_type = FF_P_TYPE;
1097
                        break;
1098
                    }
1099

    
1100
                    s->input_picture[i]->pict_type=
1101
                        s->rc_context.entry[pict_num].new_pict_type;
1102
                }
1103
            }
1104

    
1105
            if(s->avctx->b_frame_strategy==0){
1106
                b_frames= s->max_b_frames;
1107
                while(b_frames && !s->input_picture[b_frames]) b_frames--;
1108
            }else if(s->avctx->b_frame_strategy==1){
1109
                for(i=1; i<s->max_b_frames+1; i++){
1110
                    if(s->input_picture[i] && s->input_picture[i]->b_frame_score==0){
1111
                        s->input_picture[i]->b_frame_score=
1112
                            get_intra_count(s, s->input_picture[i  ]->data[0],
1113
                                               s->input_picture[i-1]->data[0], s->linesize) + 1;
1114
                    }
1115
                }
1116
                for(i=0; i<s->max_b_frames+1; i++){
1117
                    if(s->input_picture[i]==NULL || s->input_picture[i]->b_frame_score - 1 > s->mb_num/s->avctx->b_sensitivity) break;
1118
                }
1119

    
1120
                b_frames= FFMAX(0, i-1);
1121

    
1122
                /* reset scores */
1123
                for(i=0; i<b_frames+1; i++){
1124
                    s->input_picture[i]->b_frame_score=0;
1125
                }
1126
            }else if(s->avctx->b_frame_strategy==2){
1127
                b_frames= estimate_best_b_count(s);
1128
            }else{
1129
                av_log(s->avctx, AV_LOG_ERROR, "illegal b frame strategy\n");
1130
                b_frames=0;
1131
            }
1132

    
1133
            emms_c();
1134
//static int b_count=0;
1135
//b_count+= b_frames;
1136
//av_log(s->avctx, AV_LOG_DEBUG, "b_frames: %d\n", b_count);
1137

    
1138
            for(i= b_frames - 1; i>=0; i--){
1139
                int type= s->input_picture[i]->pict_type;
1140
                if(type && type != FF_B_TYPE)
1141
                    b_frames= i;
1142
            }
1143
            if(s->input_picture[b_frames]->pict_type == FF_B_TYPE && b_frames == s->max_b_frames){
1144
                av_log(s->avctx, AV_LOG_ERROR, "warning, too many b frames in a row\n");
1145
            }
1146

    
1147
            if(s->picture_in_gop_number + b_frames >= s->gop_size){
1148
              if((s->flags2 & CODEC_FLAG2_STRICT_GOP) && s->gop_size > s->picture_in_gop_number){
1149
                    b_frames= s->gop_size - s->picture_in_gop_number - 1;
1150
              }else{
1151
                if(s->flags & CODEC_FLAG_CLOSED_GOP)
1152
                    b_frames=0;
1153
                s->input_picture[b_frames]->pict_type= FF_I_TYPE;
1154
              }
1155
            }
1156

    
1157
            if(   (s->flags & CODEC_FLAG_CLOSED_GOP)
1158
               && b_frames
1159
               && s->input_picture[b_frames]->pict_type== FF_I_TYPE)
1160
                b_frames--;
1161

    
1162
            s->reordered_input_picture[0]= s->input_picture[b_frames];
1163
            if(s->reordered_input_picture[0]->pict_type != FF_I_TYPE)
1164
                s->reordered_input_picture[0]->pict_type= FF_P_TYPE;
1165
            s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1166
            for(i=0; i<b_frames; i++){
1167
                s->reordered_input_picture[i+1]= s->input_picture[i];
1168
                s->reordered_input_picture[i+1]->pict_type= FF_B_TYPE;
1169
                s->reordered_input_picture[i+1]->coded_picture_number= s->coded_picture_number++;
1170
            }
1171
        }
1172
    }
1173
no_output_pic:
1174
    if(s->reordered_input_picture[0]){
1175
        s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=FF_B_TYPE ? 3 : 0;
1176

    
1177
        ff_copy_picture(&s->new_picture, s->reordered_input_picture[0]);
1178

    
1179
        if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_SHARED || s->avctx->rc_buffer_size){
1180
            // input is a shared pix, so we can't modifiy it -> alloc a new one & ensure that the shared one is reuseable
1181

    
1182
            int i= ff_find_unused_picture(s, 0);
1183
            Picture *pic= &s->picture[i];
1184

    
1185
            pic->reference              = s->reordered_input_picture[0]->reference;
1186
            ff_alloc_picture(s, pic, 0);
1187

    
1188
            /* mark us unused / free shared pic */
1189
            if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_INTERNAL)
1190
                s->avctx->release_buffer(s->avctx, (AVFrame*)s->reordered_input_picture[0]);
1191
            for(i=0; i<4; i++)
1192
                s->reordered_input_picture[0]->data[i]= NULL;
1193
            s->reordered_input_picture[0]->type= 0;
1194

    
1195
            copy_picture_attributes(s, (AVFrame*)pic, (AVFrame*)s->reordered_input_picture[0]);
1196

    
1197
            s->current_picture_ptr= pic;
1198
        }else{
1199
            // input is not a shared pix -> reuse buffer for current_pix
1200

    
1201
            assert(   s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
1202
                   || s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1203

    
1204
            s->current_picture_ptr= s->reordered_input_picture[0];
1205
            for(i=0; i<4; i++){
1206
                s->new_picture.data[i]+= INPLACE_OFFSET;
1207
            }
1208
        }
1209
        ff_copy_picture(&s->current_picture, s->current_picture_ptr);
1210

    
1211
        s->picture_number= s->new_picture.display_picture_number;
1212
//printf("dpn:%d\n", s->picture_number);
1213
    }else{
1214
       memset(&s->new_picture, 0, sizeof(Picture));
1215
    }
1216
}
1217

    
1218
int MPV_encode_picture(AVCodecContext *avctx,
1219
                       unsigned char *buf, int buf_size, void *data)
1220
{
1221
    MpegEncContext *s = avctx->priv_data;
1222
    AVFrame *pic_arg = data;
1223
    int i, stuffing_count;
1224

    
1225
    for(i=0; i<avctx->thread_count; i++){
1226
        int start_y= s->thread_context[i]->start_mb_y;
1227
        int   end_y= s->thread_context[i]->  end_mb_y;
1228
        int h= s->mb_height;
1229
        uint8_t *start= buf + (size_t)(((int64_t) buf_size)*start_y/h);
1230
        uint8_t *end  = buf + (size_t)(((int64_t) buf_size)*  end_y/h);
1231

    
1232
        init_put_bits(&s->thread_context[i]->pb, start, end - start);
1233
    }
1234

    
1235
    s->picture_in_gop_number++;
1236

    
1237
    if(load_input_picture(s, pic_arg) < 0)
1238
        return -1;
1239

    
1240
    select_input_picture(s);
1241

    
1242
    /* output? */
1243
    if(s->new_picture.data[0]){
1244
        s->pict_type= s->new_picture.pict_type;
1245
//emms_c();
1246
//printf("qs:%f %f %d\n", s->new_picture.quality, s->current_picture.quality, s->qscale);
1247
        MPV_frame_start(s, avctx);
1248
vbv_retry:
1249
        if (encode_picture(s, s->picture_number) < 0)
1250
            return -1;
1251

    
1252
        avctx->header_bits = s->header_bits;
1253
        avctx->mv_bits     = s->mv_bits;
1254
        avctx->misc_bits   = s->misc_bits;
1255
        avctx->i_tex_bits  = s->i_tex_bits;
1256
        avctx->p_tex_bits  = s->p_tex_bits;
1257
        avctx->i_count     = s->i_count;
1258
        avctx->p_count     = s->mb_num - s->i_count - s->skip_count; //FIXME f/b_count in avctx
1259
        avctx->skip_count  = s->skip_count;
1260

    
1261
        MPV_frame_end(s);
1262

    
1263
        if (CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG)
1264
            ff_mjpeg_encode_picture_trailer(s);
1265

    
1266
        if(avctx->rc_buffer_size){
1267
            RateControlContext *rcc= &s->rc_context;
1268
            int max_size= rcc->buffer_index * avctx->rc_max_available_vbv_use;
1269

    
1270
            if(put_bits_count(&s->pb) > max_size && s->lambda < s->avctx->lmax){
1271
                s->next_lambda= FFMAX(s->lambda+1, s->lambda*(s->qscale+1) / s->qscale);
1272
                if(s->adaptive_quant){
1273
                    int i;
1274
                    for(i=0; i<s->mb_height*s->mb_stride; i++)
1275
                        s->lambda_table[i]= FFMAX(s->lambda_table[i]+1, s->lambda_table[i]*(s->qscale+1) / s->qscale);
1276
                }
1277
                s->mb_skipped = 0;        //done in MPV_frame_start()
1278
                if(s->pict_type==FF_P_TYPE){ //done in encode_picture() so we must undo it
1279
                    if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
1280
                        s->no_rounding ^= 1;
1281
                }
1282
                if(s->pict_type!=FF_B_TYPE){
1283
                    s->time_base= s->last_time_base;
1284
                    s->last_non_b_time= s->time - s->pp_time;
1285
                }
1286
//                av_log(NULL, AV_LOG_ERROR, "R:%d ", s->next_lambda);
1287
                for(i=0; i<avctx->thread_count; i++){
1288
                    PutBitContext *pb= &s->thread_context[i]->pb;
1289
                    init_put_bits(pb, pb->buf, pb->buf_end - pb->buf);
1290
                }
1291
                goto vbv_retry;
1292
            }
1293

    
1294
            assert(s->avctx->rc_max_rate);
1295
        }
1296

    
1297
        if(s->flags&CODEC_FLAG_PASS1)
1298
            ff_write_pass1_stats(s);
1299

    
1300
        for(i=0; i<4; i++){
1301
            s->current_picture_ptr->error[i]= s->current_picture.error[i];
1302
            avctx->error[i] += s->current_picture_ptr->error[i];
1303
        }
1304

    
1305
        if(s->flags&CODEC_FLAG_PASS1)
1306
            assert(avctx->header_bits + avctx->mv_bits + avctx->misc_bits + avctx->i_tex_bits + avctx->p_tex_bits == put_bits_count(&s->pb));
1307
        flush_put_bits(&s->pb);
1308
        s->frame_bits  = put_bits_count(&s->pb);
1309

    
1310
        stuffing_count= ff_vbv_update(s, s->frame_bits);
1311
        if(stuffing_count){
1312
            if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < stuffing_count + 50){
1313
                av_log(s->avctx, AV_LOG_ERROR, "stuffing too large\n");
1314
                return -1;
1315
            }
1316

    
1317
            switch(s->codec_id){
1318
            case CODEC_ID_MPEG1VIDEO:
1319
            case CODEC_ID_MPEG2VIDEO:
1320
                while(stuffing_count--){
1321
                    put_bits(&s->pb, 8, 0);
1322
                }
1323
            break;
1324
            case CODEC_ID_MPEG4:
1325
                put_bits(&s->pb, 16, 0);
1326
                put_bits(&s->pb, 16, 0x1C3);
1327
                stuffing_count -= 4;
1328
                while(stuffing_count--){
1329
                    put_bits(&s->pb, 8, 0xFF);
1330
                }
1331
            break;
1332
            default:
1333
                av_log(s->avctx, AV_LOG_ERROR, "vbv buffer overflow\n");
1334
            }
1335
            flush_put_bits(&s->pb);
1336
            s->frame_bits  = put_bits_count(&s->pb);
1337
        }
1338

    
1339
        /* update mpeg1/2 vbv_delay for CBR */
1340
        if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && s->out_format == FMT_MPEG1
1341
           && 90000LL * (avctx->rc_buffer_size-1) <= s->avctx->rc_max_rate*0xFFFFLL){
1342
            int vbv_delay, min_delay;
1343
            double inbits = s->avctx->rc_max_rate*av_q2d(s->avctx->time_base);
1344
            int    minbits= s->frame_bits - 8*(s->vbv_delay_ptr - s->pb.buf - 1);
1345
            double bits   = s->rc_context.buffer_index + minbits - inbits;
1346

    
1347
            if(bits<0)
1348
                av_log(s->avctx, AV_LOG_ERROR, "Internal error, negative bits\n");
1349

    
1350
            assert(s->repeat_first_field==0);
1351

    
1352
            vbv_delay=     bits * 90000                               / s->avctx->rc_max_rate;
1353
            min_delay= (minbits * 90000LL + s->avctx->rc_max_rate - 1)/ s->avctx->rc_max_rate;
1354

    
1355
            vbv_delay= FFMAX(vbv_delay, min_delay);
1356

    
1357
            assert(vbv_delay < 0xFFFF);
1358

    
1359
            s->vbv_delay_ptr[0] &= 0xF8;
1360
            s->vbv_delay_ptr[0] |= vbv_delay>>13;
1361
            s->vbv_delay_ptr[1]  = vbv_delay>>5;
1362
            s->vbv_delay_ptr[2] &= 0x07;
1363
            s->vbv_delay_ptr[2] |= vbv_delay<<3;
1364
        }
1365
        s->total_bits += s->frame_bits;
1366
        avctx->frame_bits  = s->frame_bits;
1367
    }else{
1368
        assert((put_bits_ptr(&s->pb) == s->pb.buf));
1369
        s->frame_bits=0;
1370
    }
1371
    assert((s->frame_bits&7)==0);
1372

    
1373
    return s->frame_bits/8;
1374
}
1375

    
1376
static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold)
1377
{
1378
    static const char tab[64]=
1379
        {3,2,2,1,1,1,1,1,
1380
         1,1,1,1,1,1,1,1,
1381
         1,1,1,1,1,1,1,1,
1382
         0,0,0,0,0,0,0,0,
1383
         0,0,0,0,0,0,0,0,
1384
         0,0,0,0,0,0,0,0,
1385
         0,0,0,0,0,0,0,0,
1386
         0,0,0,0,0,0,0,0};
1387
    int score=0;
1388
    int run=0;
1389
    int i;
1390
    DCTELEM *block= s->block[n];
1391
    const int last_index= s->block_last_index[n];
1392
    int skip_dc;
1393

    
1394
    if(threshold<0){
1395
        skip_dc=0;
1396
        threshold= -threshold;
1397
    }else
1398
        skip_dc=1;
1399

    
1400
    /* Are all we could set to zero already zero? */
1401
    if(last_index<=skip_dc - 1) return;
1402

    
1403
    for(i=0; i<=last_index; i++){
1404
        const int j = s->intra_scantable.permutated[i];
1405
        const int level = FFABS(block[j]);
1406
        if(level==1){
1407
            if(skip_dc && i==0) continue;
1408
            score+= tab[run];
1409
            run=0;
1410
        }else if(level>1){
1411
            return;
1412
        }else{
1413
            run++;
1414
        }
1415
    }
1416
    if(score >= threshold) return;
1417
    for(i=skip_dc; i<=last_index; i++){
1418
        const int j = s->intra_scantable.permutated[i];
1419
        block[j]=0;
1420
    }
1421
    if(block[0]) s->block_last_index[n]= 0;
1422
    else         s->block_last_index[n]= -1;
1423
}
1424

    
1425
static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1426
{
1427
    int i;
1428
    const int maxlevel= s->max_qcoeff;
1429
    const int minlevel= s->min_qcoeff;
1430
    int overflow=0;
1431

    
1432
    if(s->mb_intra){
1433
        i=1; //skip clipping of intra dc
1434
    }else
1435
        i=0;
1436

    
1437
    for(;i<=last_index; i++){
1438
        const int j= s->intra_scantable.permutated[i];
1439
        int level = block[j];
1440

    
1441
        if     (level>maxlevel){
1442
            level=maxlevel;
1443
            overflow++;
1444
        }else if(level<minlevel){
1445
            level=minlevel;
1446
            overflow++;
1447
        }
1448

    
1449
        block[j]= level;
1450
    }
1451

    
1452
    if(overflow && s->avctx->mb_decision == FF_MB_DECISION_SIMPLE)
1453
        av_log(s->avctx, AV_LOG_INFO, "warning, clipping %d dct coefficients to %d..%d\n", overflow, minlevel, maxlevel);
1454
}
1455

    
1456
static void get_visual_weight(int16_t *weight, uint8_t *ptr, int stride){
1457
    int x, y;
1458
//FIXME optimize
1459
    for(y=0; y<8; y++){
1460
        for(x=0; x<8; x++){
1461
            int x2, y2;
1462
            int sum=0;
1463
            int sqr=0;
1464
            int count=0;
1465

    
1466
            for(y2= FFMAX(y-1, 0); y2 < FFMIN(8, y+2); y2++){
1467
                for(x2= FFMAX(x-1, 0); x2 < FFMIN(8, x+2); x2++){
1468
                    int v= ptr[x2 + y2*stride];
1469
                    sum += v;
1470
                    sqr += v*v;
1471
                    count++;
1472
                }
1473
            }
1474
            weight[x + 8*y]= (36*ff_sqrt(count*sqr - sum*sum)) / count;
1475
        }
1476
    }
1477
}
1478

    
1479
static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count)
1480
{
1481
    int16_t weight[8][64];
1482
    DCTELEM orig[8][64];
1483
    const int mb_x= s->mb_x;
1484
    const int mb_y= s->mb_y;
1485
    int i;
1486
    int skip_dct[8];
1487
    int dct_offset   = s->linesize*8; //default for progressive frames
1488
    uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1489
    int wrap_y, wrap_c;
1490

    
1491
    for(i=0; i<mb_block_count; i++) skip_dct[i]=s->skipdct;
1492

    
1493
    if(s->adaptive_quant){
1494
        const int last_qp= s->qscale;
1495
        const int mb_xy= mb_x + mb_y*s->mb_stride;
1496

    
1497
        s->lambda= s->lambda_table[mb_xy];
1498
        update_qscale(s);
1499

    
1500
        if(!(s->flags&CODEC_FLAG_QP_RD)){
1501
            s->qscale= s->current_picture_ptr->qscale_table[mb_xy];
1502
            s->dquant= s->qscale - last_qp;
1503

    
1504
            if(s->out_format==FMT_H263){
1505
                s->dquant= av_clip(s->dquant, -2, 2);
1506

    
1507
                if(s->codec_id==CODEC_ID_MPEG4){
1508
                    if(!s->mb_intra){
1509
                        if(s->pict_type == FF_B_TYPE){
1510
                            if(s->dquant&1 || s->mv_dir&MV_DIRECT)
1511
                                s->dquant= 0;
1512
                        }
1513
                        if(s->mv_type==MV_TYPE_8X8)
1514
                            s->dquant=0;
1515
                    }
1516
                }
1517
            }
1518
        }
1519
        ff_set_qscale(s, last_qp + s->dquant);
1520
    }else if(s->flags&CODEC_FLAG_QP_RD)
1521
        ff_set_qscale(s, s->qscale + s->dquant);
1522

    
1523
    wrap_y = s->linesize;
1524
    wrap_c = s->uvlinesize;
1525
    ptr_y = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
1526
    ptr_cb = s->new_picture.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1527
    ptr_cr = s->new_picture.data[2] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1528

    
1529
    if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
1530
        uint8_t *ebuf= s->edge_emu_buffer + 32;
1531
        ff_emulated_edge_mc(ebuf            , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width   , s->height);
1532
        ptr_y= ebuf;
1533
        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);
1534
        ptr_cb= ebuf+18*wrap_y;
1535
        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);
1536
        ptr_cr= ebuf+18*wrap_y+8;
1537
    }
1538

    
1539
    if (s->mb_intra) {
1540
        if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1541
            int progressive_score, interlaced_score;
1542

    
1543
            s->interlaced_dct=0;
1544
            progressive_score= s->dsp.ildct_cmp[4](s, ptr_y           , NULL, wrap_y, 8)
1545
                              +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y*8, NULL, wrap_y, 8) - 400;
1546

    
1547
            if(progressive_score > 0){
1548
                interlaced_score = s->dsp.ildct_cmp[4](s, ptr_y           , NULL, wrap_y*2, 8)
1549
                                  +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y  , NULL, wrap_y*2, 8);
1550
                if(progressive_score > interlaced_score){
1551
                    s->interlaced_dct=1;
1552

    
1553
                    dct_offset= wrap_y;
1554
                    wrap_y<<=1;
1555
                    if (s->chroma_format == CHROMA_422)
1556
                        wrap_c<<=1;
1557
                }
1558
            }
1559
        }
1560

    
1561
        s->dsp.get_pixels(s->block[0], ptr_y                 , wrap_y);
1562
        s->dsp.get_pixels(s->block[1], ptr_y              + 8, wrap_y);
1563
        s->dsp.get_pixels(s->block[2], ptr_y + dct_offset    , wrap_y);
1564
        s->dsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y);
1565

    
1566
        if(s->flags&CODEC_FLAG_GRAY){
1567
            skip_dct[4]= 1;
1568
            skip_dct[5]= 1;
1569
        }else{
1570
            s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c);
1571
            s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c);
1572
            if(!s->chroma_y_shift){ /* 422 */
1573
                s->dsp.get_pixels(s->block[6], ptr_cb + (dct_offset>>1), wrap_c);
1574
                s->dsp.get_pixels(s->block[7], ptr_cr + (dct_offset>>1), wrap_c);
1575
            }
1576
        }
1577
    }else{
1578
        op_pixels_func (*op_pix)[4];
1579
        qpel_mc_func (*op_qpix)[16];
1580
        uint8_t *dest_y, *dest_cb, *dest_cr;
1581

    
1582
        dest_y  = s->dest[0];
1583
        dest_cb = s->dest[1];
1584
        dest_cr = s->dest[2];
1585

    
1586
        if ((!s->no_rounding) || s->pict_type==FF_B_TYPE){
1587
            op_pix = s->dsp.put_pixels_tab;
1588
            op_qpix= s->dsp.put_qpel_pixels_tab;
1589
        }else{
1590
            op_pix = s->dsp.put_no_rnd_pixels_tab;
1591
            op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab;
1592
        }
1593

    
1594
        if (s->mv_dir & MV_DIR_FORWARD) {
1595
            MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix);
1596
            op_pix = s->dsp.avg_pixels_tab;
1597
            op_qpix= s->dsp.avg_qpel_pixels_tab;
1598
        }
1599
        if (s->mv_dir & MV_DIR_BACKWARD) {
1600
            MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix);
1601
        }
1602

    
1603
        if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1604
            int progressive_score, interlaced_score;
1605

    
1606
            s->interlaced_dct=0;
1607
            progressive_score= s->dsp.ildct_cmp[0](s, dest_y           , ptr_y           , wrap_y, 8)
1608
                              +s->dsp.ildct_cmp[0](s, dest_y + wrap_y*8, ptr_y + wrap_y*8, wrap_y, 8) - 400;
1609

    
1610
            if(s->avctx->ildct_cmp == FF_CMP_VSSE) progressive_score -= 400;
1611

    
1612
            if(progressive_score>0){
1613
                interlaced_score = s->dsp.ildct_cmp[0](s, dest_y           , ptr_y           , wrap_y*2, 8)
1614
                                  +s->dsp.ildct_cmp[0](s, dest_y + wrap_y  , ptr_y + wrap_y  , wrap_y*2, 8);
1615

    
1616
                if(progressive_score > interlaced_score){
1617
                    s->interlaced_dct=1;
1618

    
1619
                    dct_offset= wrap_y;
1620
                    wrap_y<<=1;
1621
                    if (s->chroma_format == CHROMA_422)
1622
                        wrap_c<<=1;
1623
                }
1624
            }
1625
        }
1626

    
1627
        s->dsp.diff_pixels(s->block[0], ptr_y                 , dest_y                 , wrap_y);
1628
        s->dsp.diff_pixels(s->block[1], ptr_y              + 8, dest_y              + 8, wrap_y);
1629
        s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset    , dest_y + dct_offset    , wrap_y);
1630
        s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y);
1631

    
1632
        if(s->flags&CODEC_FLAG_GRAY){
1633
            skip_dct[4]= 1;
1634
            skip_dct[5]= 1;
1635
        }else{
1636
            s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
1637
            s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
1638
            if(!s->chroma_y_shift){ /* 422 */
1639
                s->dsp.diff_pixels(s->block[6], ptr_cb + (dct_offset>>1), dest_cb + (dct_offset>>1), wrap_c);
1640
                s->dsp.diff_pixels(s->block[7], ptr_cr + (dct_offset>>1), dest_cr + (dct_offset>>1), wrap_c);
1641
            }
1642
        }
1643
        /* pre quantization */
1644
        if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){
1645
            //FIXME optimize
1646
            if(s->dsp.sad[1](NULL, ptr_y               , dest_y               , wrap_y, 8) < 20*s->qscale) skip_dct[0]= 1;
1647
            if(s->dsp.sad[1](NULL, ptr_y            + 8, dest_y            + 8, wrap_y, 8) < 20*s->qscale) skip_dct[1]= 1;
1648
            if(s->dsp.sad[1](NULL, ptr_y +dct_offset   , dest_y +dct_offset   , wrap_y, 8) < 20*s->qscale) skip_dct[2]= 1;
1649
            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;
1650
            if(s->dsp.sad[1](NULL, ptr_cb              , dest_cb              , wrap_c, 8) < 20*s->qscale) skip_dct[4]= 1;
1651
            if(s->dsp.sad[1](NULL, ptr_cr              , dest_cr              , wrap_c, 8) < 20*s->qscale) skip_dct[5]= 1;
1652
            if(!s->chroma_y_shift){ /* 422 */
1653
                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;
1654
                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;
1655
            }
1656
        }
1657
    }
1658

    
1659
    if(s->avctx->quantizer_noise_shaping){
1660
        if(!skip_dct[0]) get_visual_weight(weight[0], ptr_y                 , wrap_y);
1661
        if(!skip_dct[1]) get_visual_weight(weight[1], ptr_y              + 8, wrap_y);
1662
        if(!skip_dct[2]) get_visual_weight(weight[2], ptr_y + dct_offset    , wrap_y);
1663
        if(!skip_dct[3]) get_visual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y);
1664
        if(!skip_dct[4]) get_visual_weight(weight[4], ptr_cb                , wrap_c);
1665
        if(!skip_dct[5]) get_visual_weight(weight[5], ptr_cr                , wrap_c);
1666
        if(!s->chroma_y_shift){ /* 422 */
1667
            if(!skip_dct[6]) get_visual_weight(weight[6], ptr_cb + (dct_offset>>1), wrap_c);
1668
            if(!skip_dct[7]) get_visual_weight(weight[7], ptr_cr + (dct_offset>>1), wrap_c);
1669
        }
1670
        memcpy(orig[0], s->block[0], sizeof(DCTELEM)*64*mb_block_count);
1671
    }
1672

    
1673
    /* DCT & quantize */
1674
    assert(s->out_format!=FMT_MJPEG || s->qscale==8);
1675
    {
1676
        for(i=0;i<mb_block_count;i++) {
1677
            if(!skip_dct[i]){
1678
                int overflow;
1679
                s->block_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow);
1680
            // FIXME we could decide to change to quantizer instead of clipping
1681
            // JS: I don't think that would be a good idea it could lower quality instead
1682
            //     of improve it. Just INTRADC clipping deserves changes in quantizer
1683
                if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1684
            }else
1685
                s->block_last_index[i]= -1;
1686
        }
1687
        if(s->avctx->quantizer_noise_shaping){
1688
            for(i=0;i<mb_block_count;i++) {
1689
                if(!skip_dct[i]){
1690
                    s->block_last_index[i] = dct_quantize_refine(s, s->block[i], weight[i], orig[i], i, s->qscale);
1691
                }
1692
            }
1693
        }
1694

    
1695
        if(s->luma_elim_threshold && !s->mb_intra)
1696
            for(i=0; i<4; i++)
1697
                dct_single_coeff_elimination(s, i, s->luma_elim_threshold);
1698
        if(s->chroma_elim_threshold && !s->mb_intra)
1699
            for(i=4; i<mb_block_count; i++)
1700
                dct_single_coeff_elimination(s, i, s->chroma_elim_threshold);
1701

    
1702
        if(s->flags & CODEC_FLAG_CBP_RD){
1703
            for(i=0;i<mb_block_count;i++) {
1704
                if(s->block_last_index[i] == -1)
1705
                    s->coded_score[i]= INT_MAX/256;
1706
            }
1707
        }
1708
    }
1709

    
1710
    if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
1711
        s->block_last_index[4]=
1712
        s->block_last_index[5]= 0;
1713
        s->block[4][0]=
1714
        s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale;
1715
    }
1716

    
1717
    //non c quantize code returns incorrect block_last_index FIXME
1718
    if(s->alternate_scan && s->dct_quantize != dct_quantize_c){
1719
        for(i=0; i<mb_block_count; i++){
1720
            int j;
1721
            if(s->block_last_index[i]>0){
1722
                for(j=63; j>0; j--){
1723
                    if(s->block[i][ s->intra_scantable.permutated[j] ]) break;
1724
                }
1725
                s->block_last_index[i]= j;
1726
            }
1727
        }
1728
    }
1729

    
1730
    /* huffman encode */
1731
    switch(s->codec_id){ //FIXME funct ptr could be slightly faster
1732
    case CODEC_ID_MPEG1VIDEO:
1733
    case CODEC_ID_MPEG2VIDEO:
1734
        if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
1735
            mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1736
        break;
1737
    case CODEC_ID_MPEG4:
1738
        if (CONFIG_MPEG4_ENCODER)
1739
            mpeg4_encode_mb(s, s->block, motion_x, motion_y);
1740
        break;
1741
    case CODEC_ID_MSMPEG4V2:
1742
    case CODEC_ID_MSMPEG4V3:
1743
    case CODEC_ID_WMV1:
1744
        if (CONFIG_MSMPEG4_ENCODER)
1745
            msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1746
        break;
1747
    case CODEC_ID_WMV2:
1748
        if (CONFIG_WMV2_ENCODER)
1749
            ff_wmv2_encode_mb(s, s->block, motion_x, motion_y);
1750
        break;
1751
    case CODEC_ID_H261:
1752
        if (CONFIG_H261_ENCODER)
1753
            ff_h261_encode_mb(s, s->block, motion_x, motion_y);
1754
        break;
1755
    case CODEC_ID_H263:
1756
    case CODEC_ID_H263P:
1757
    case CODEC_ID_FLV1:
1758
    case CODEC_ID_RV10:
1759
    case CODEC_ID_RV20:
1760
        if (CONFIG_H263_ENCODER)
1761
            h263_encode_mb(s, s->block, motion_x, motion_y);
1762
        break;
1763
    case CODEC_ID_MJPEG:
1764
        if (CONFIG_MJPEG_ENCODER)
1765
            ff_mjpeg_encode_mb(s, s->block);
1766
        break;
1767
    default:
1768
        assert(0);
1769
    }
1770
}
1771

    
1772
static av_always_inline void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
1773
{
1774
    if (s->chroma_format == CHROMA_420) encode_mb_internal(s, motion_x, motion_y,  8, 6);
1775
    else                                encode_mb_internal(s, motion_x, motion_y, 16, 8);
1776
}
1777

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

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

    
1783
    /* mpeg1 */
1784
    d->mb_skip_run= s->mb_skip_run;
1785
    for(i=0; i<3; i++)
1786
        d->last_dc[i]= s->last_dc[i];
1787

    
1788
    /* statistics */
1789
    d->mv_bits= s->mv_bits;
1790
    d->i_tex_bits= s->i_tex_bits;
1791
    d->p_tex_bits= s->p_tex_bits;
1792
    d->i_count= s->i_count;
1793
    d->f_count= s->f_count;
1794
    d->b_count= s->b_count;
1795
    d->skip_count= s->skip_count;
1796
    d->misc_bits= s->misc_bits;
1797
    d->last_bits= 0;
1798

    
1799
    d->mb_skipped= 0;
1800
    d->qscale= s->qscale;
1801
    d->dquant= s->dquant;
1802

    
1803
    d->esc3_level_length= s->esc3_level_length;
1804
}
1805

    
1806
static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1807
    int i;
1808

    
1809
    memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
1810
    memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1811

    
1812
    /* mpeg1 */
1813
    d->mb_skip_run= s->mb_skip_run;
1814
    for(i=0; i<3; i++)
1815
        d->last_dc[i]= s->last_dc[i];
1816

    
1817
    /* statistics */
1818
    d->mv_bits= s->mv_bits;
1819
    d->i_tex_bits= s->i_tex_bits;
1820
    d->p_tex_bits= s->p_tex_bits;
1821
    d->i_count= s->i_count;
1822
    d->f_count= s->f_count;
1823
    d->b_count= s->b_count;
1824
    d->skip_count= s->skip_count;
1825
    d->misc_bits= s->misc_bits;
1826

    
1827
    d->mb_intra= s->mb_intra;
1828
    d->mb_skipped= s->mb_skipped;
1829
    d->mv_type= s->mv_type;
1830
    d->mv_dir= s->mv_dir;
1831
    d->pb= s->pb;
1832
    if(s->data_partitioning){
1833
        d->pb2= s->pb2;
1834
        d->tex_pb= s->tex_pb;
1835
    }
1836
    d->block= s->block;
1837
    for(i=0; i<8; i++)
1838
        d->block_last_index[i]= s->block_last_index[i];
1839
    d->interlaced_dct= s->interlaced_dct;
1840
    d->qscale= s->qscale;
1841

    
1842
    d->esc3_level_length= s->esc3_level_length;
1843
}
1844

    
1845
static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type,
1846
                           PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
1847
                           int *dmin, int *next_block, int motion_x, int motion_y)
1848
{
1849
    int score;
1850
    uint8_t *dest_backup[3];
1851

    
1852
    copy_context_before_encode(s, backup, type);
1853

    
1854
    s->block= s->blocks[*next_block];
1855
    s->pb= pb[*next_block];
1856
    if(s->data_partitioning){
1857
        s->pb2   = pb2   [*next_block];
1858
        s->tex_pb= tex_pb[*next_block];
1859
    }
1860

    
1861
    if(*next_block){
1862
        memcpy(dest_backup, s->dest, sizeof(s->dest));
1863
        s->dest[0] = s->rd_scratchpad;
1864
        s->dest[1] = s->rd_scratchpad + 16*s->linesize;
1865
        s->dest[2] = s->rd_scratchpad + 16*s->linesize + 8;
1866
        assert(s->linesize >= 32); //FIXME
1867
    }
1868

    
1869
    encode_mb(s, motion_x, motion_y);
1870

    
1871
    score= put_bits_count(&s->pb);
1872
    if(s->data_partitioning){
1873
        score+= put_bits_count(&s->pb2);
1874
        score+= put_bits_count(&s->tex_pb);
1875
    }
1876

    
1877
    if(s->avctx->mb_decision == FF_MB_DECISION_RD){
1878
        MPV_decode_mb(s, s->block);
1879

    
1880
        score *= s->lambda2;
1881
        score += sse_mb(s) << FF_LAMBDA_SHIFT;
1882
    }
1883

    
1884
    if(*next_block){
1885
        memcpy(s->dest, dest_backup, sizeof(s->dest));
1886
    }
1887

    
1888
    if(score<*dmin){
1889
        *dmin= score;
1890
        *next_block^=1;
1891

    
1892
        copy_context_after_encode(best, s, type);
1893
    }
1894
}
1895

    
1896
static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){
1897
    uint32_t *sq = ff_squareTbl + 256;
1898
    int acc=0;
1899
    int x,y;
1900

    
1901
    if(w==16 && h==16)
1902
        return s->dsp.sse[0](NULL, src1, src2, stride, 16);
1903
    else if(w==8 && h==8)
1904
        return s->dsp.sse[1](NULL, src1, src2, stride, 8);
1905

    
1906
    for(y=0; y<h; y++){
1907
        for(x=0; x<w; x++){
1908
            acc+= sq[src1[x + y*stride] - src2[x + y*stride]];
1909
        }
1910
    }
1911

    
1912
    assert(acc>=0);
1913

    
1914
    return acc;
1915
}
1916

    
1917
static int sse_mb(MpegEncContext *s){
1918
    int w= 16;
1919
    int h= 16;
1920

    
1921
    if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
1922
    if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
1923

    
1924
    if(w==16 && h==16)
1925
      if(s->avctx->mb_cmp == FF_CMP_NSSE){
1926
        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)
1927
               +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)
1928
               +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);
1929
      }else{
1930
        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)
1931
               +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)
1932
               +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);
1933
      }
1934
    else
1935
        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)
1936
               +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)
1937
               +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);
1938
}
1939

    
1940
static int pre_estimate_motion_thread(AVCodecContext *c, void *arg){
1941
    MpegEncContext *s= *(void**)arg;
1942

    
1943

    
1944
    s->me.pre_pass=1;
1945
    s->me.dia_size= s->avctx->pre_dia_size;
1946
    s->first_slice_line=1;
1947
    for(s->mb_y= s->end_mb_y-1; s->mb_y >= s->start_mb_y; s->mb_y--) {
1948
        for(s->mb_x=s->mb_width-1; s->mb_x >=0 ;s->mb_x--) {
1949
            ff_pre_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1950
        }
1951
        s->first_slice_line=0;
1952
    }
1953

    
1954
    s->me.pre_pass=0;
1955

    
1956
    return 0;
1957
}
1958

    
1959
static int estimate_motion_thread(AVCodecContext *c, void *arg){
1960
    MpegEncContext *s= *(void**)arg;
1961

    
1962
    ff_check_alignment();
1963

    
1964
    s->me.dia_size= s->avctx->dia_size;
1965
    s->first_slice_line=1;
1966
    for(s->mb_y= s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
1967
        s->mb_x=0; //for block init below
1968
        ff_init_block_index(s);
1969
        for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {
1970
            s->block_index[0]+=2;
1971
            s->block_index[1]+=2;
1972
            s->block_index[2]+=2;
1973
            s->block_index[3]+=2;
1974

    
1975
            /* compute motion vector & mb_type and store in context */
1976
            if(s->pict_type==FF_B_TYPE)
1977
                ff_estimate_b_frame_motion(s, s->mb_x, s->mb_y);
1978
            else
1979
                ff_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1980
        }
1981
        s->first_slice_line=0;
1982
    }
1983
    return 0;
1984
}
1985

    
1986
static int mb_var_thread(AVCodecContext *c, void *arg){
1987
    MpegEncContext *s= *(void**)arg;
1988
    int mb_x, mb_y;
1989

    
1990
    ff_check_alignment();
1991

    
1992
    for(mb_y=s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
1993
        for(mb_x=0; mb_x < s->mb_width; mb_x++) {
1994
            int xx = mb_x * 16;
1995
            int yy = mb_y * 16;
1996
            uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
1997
            int varc;
1998
            int sum = s->dsp.pix_sum(pix, s->linesize);
1999

    
2000
            varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
2001

    
2002
            s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
2003
            s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
2004
            s->me.mb_var_sum_temp    += varc;
2005
        }
2006
    }
2007
    return 0;
2008
}
2009

    
2010
static void write_slice_end(MpegEncContext *s){
2011
    if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4){
2012
        if(s->partitioned_frame){
2013
            ff_mpeg4_merge_partitions(s);
2014
        }
2015

    
2016
        ff_mpeg4_stuffing(&s->pb);
2017
    }else if(CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG){
2018
        ff_mjpeg_encode_stuffing(&s->pb);
2019
    }
2020

    
2021
    align_put_bits(&s->pb);
2022
    flush_put_bits(&s->pb);
2023

    
2024
    if((s->flags&CODEC_FLAG_PASS1) && !s->partitioned_frame)
2025
        s->misc_bits+= get_bits_diff(s);
2026
}
2027

    
2028
static int encode_thread(AVCodecContext *c, void *arg){
2029
    MpegEncContext *s= *(void**)arg;
2030
    int mb_x, mb_y, pdif = 0;
2031
    int chr_h= 16>>s->chroma_y_shift;
2032
    int i, j;
2033
    MpegEncContext best_s, backup_s;
2034
    uint8_t bit_buf[2][MAX_MB_BYTES];
2035
    uint8_t bit_buf2[2][MAX_MB_BYTES];
2036
    uint8_t bit_buf_tex[2][MAX_MB_BYTES];
2037
    PutBitContext pb[2], pb2[2], tex_pb[2];
2038
//printf("%d->%d\n", s->resync_mb_y, s->end_mb_y);
2039

    
2040
    ff_check_alignment();
2041

    
2042
    for(i=0; i<2; i++){
2043
        init_put_bits(&pb    [i], bit_buf    [i], MAX_MB_BYTES);
2044
        init_put_bits(&pb2   [i], bit_buf2   [i], MAX_MB_BYTES);
2045
        init_put_bits(&tex_pb[i], bit_buf_tex[i], MAX_MB_BYTES);
2046
    }
2047

    
2048
    s->last_bits= put_bits_count(&s->pb);
2049
    s->mv_bits=0;
2050
    s->misc_bits=0;
2051
    s->i_tex_bits=0;
2052
    s->p_tex_bits=0;
2053
    s->i_count=0;
2054
    s->f_count=0;
2055
    s->b_count=0;
2056
    s->skip_count=0;
2057

    
2058
    for(i=0; i<3; i++){
2059
        /* init last dc values */
2060
        /* note: quant matrix value (8) is implied here */
2061
        s->last_dc[i] = 128 << s->intra_dc_precision;
2062

    
2063
        s->current_picture.error[i] = 0;
2064
    }
2065
    s->mb_skip_run = 0;
2066
    memset(s->last_mv, 0, sizeof(s->last_mv));
2067

    
2068
    s->last_mv_dir = 0;
2069

    
2070
    switch(s->codec_id){
2071
    case CODEC_ID_H263:
2072
    case CODEC_ID_H263P:
2073
    case CODEC_ID_FLV1:
2074
        if (CONFIG_H263_ENCODER)
2075
            s->gob_index = ff_h263_get_gob_height(s);
2076
        break;
2077
    case CODEC_ID_MPEG4:
2078
        if(CONFIG_MPEG4_ENCODER && s->partitioned_frame)
2079
            ff_mpeg4_init_partitions(s);
2080
        break;
2081
    }
2082

    
2083
    s->resync_mb_x=0;
2084
    s->resync_mb_y=0;
2085
    s->first_slice_line = 1;
2086
    s->ptr_lastgob = s->pb.buf;
2087
    for(mb_y= s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2088
//    printf("row %d at %X\n", s->mb_y, (int)s);
2089
        s->mb_x=0;
2090
        s->mb_y= mb_y;
2091

    
2092
        ff_set_qscale(s, s->qscale);
2093
        ff_init_block_index(s);
2094

    
2095
        for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2096
            int xy= mb_y*s->mb_stride + mb_x; // removed const, H261 needs to adjust this
2097
            int mb_type= s->mb_type[xy];
2098
//            int d;
2099
            int dmin= INT_MAX;
2100
            int dir;
2101

    
2102
            if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < MAX_MB_BYTES){
2103
                av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2104
                return -1;
2105
            }
2106
            if(s->data_partitioning){
2107
                if(   s->pb2   .buf_end - s->pb2   .buf - (put_bits_count(&s->    pb2)>>3) < MAX_MB_BYTES
2108
                   || s->tex_pb.buf_end - s->tex_pb.buf - (put_bits_count(&s->tex_pb )>>3) < MAX_MB_BYTES){
2109
                    av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2110
                    return -1;
2111
                }
2112
            }
2113

    
2114
            s->mb_x = mb_x;
2115
            s->mb_y = mb_y;  // moved into loop, can get changed by H.261
2116
            ff_update_block_index(s);
2117

    
2118
            if(CONFIG_H261_ENCODER && s->codec_id == CODEC_ID_H261){
2119
                ff_h261_reorder_mb_index(s);
2120
                xy= s->mb_y*s->mb_stride + s->mb_x;
2121
                mb_type= s->mb_type[xy];
2122
            }
2123

    
2124
            /* write gob / video packet header  */
2125
            if(s->rtp_mode){
2126
                int current_packet_size, is_gob_start;
2127

    
2128
                current_packet_size= ((put_bits_count(&s->pb)+7)>>3) - (s->ptr_lastgob - s->pb.buf);
2129

    
2130
                is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0;
2131

    
2132
                if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1;
2133

    
2134
                switch(s->codec_id){
2135
                case CODEC_ID_H263:
2136
                case CODEC_ID_H263P:
2137
                    if(!s->h263_slice_structured)
2138
                        if(s->mb_x || s->mb_y%s->gob_index) is_gob_start=0;
2139
                    break;
2140
                case CODEC_ID_MPEG2VIDEO:
2141
                    if(s->mb_x==0 && s->mb_y!=0) is_gob_start=1;
2142
                case CODEC_ID_MPEG1VIDEO:
2143
                    if(s->mb_skip_run) is_gob_start=0;
2144
                    break;
2145
                }
2146

    
2147
                if(is_gob_start){
2148
                    if(s->start_mb_y != mb_y || mb_x!=0){
2149
                        write_slice_end(s);
2150

    
2151
                        if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){
2152
                            ff_mpeg4_init_partitions(s);
2153
                        }
2154
                    }
2155

    
2156
                    assert((put_bits_count(&s->pb)&7) == 0);
2157
                    current_packet_size= put_bits_ptr(&s->pb) - s->ptr_lastgob;
2158

    
2159
                    if(s->avctx->error_rate && s->resync_mb_x + s->resync_mb_y > 0){
2160
                        int r= put_bits_count(&s->pb)/8 + s->picture_number + 16 + s->mb_x + s->mb_y;
2161
                        int d= 100 / s->avctx->error_rate;
2162
                        if(r % d == 0){
2163
                            current_packet_size=0;
2164
#ifndef ALT_BITSTREAM_WRITER
2165
                            s->pb.buf_ptr= s->ptr_lastgob;
2166
#endif
2167
                            assert(put_bits_ptr(&s->pb) == s->ptr_lastgob);
2168
                        }
2169
                    }
2170

    
2171
                    if (s->avctx->rtp_callback){
2172
                        int number_mb = (mb_y - s->resync_mb_y)*s->mb_width + mb_x - s->resync_mb_x;
2173
                        s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, current_packet_size, number_mb);
2174
                    }
2175

    
2176
                    switch(s->codec_id){
2177
                    case CODEC_ID_MPEG4:
2178
                        if (CONFIG_MPEG4_ENCODER) {
2179
                            ff_mpeg4_encode_video_packet_header(s);
2180
                            ff_mpeg4_clean_buffers(s);
2181
                        }
2182
                    break;
2183
                    case CODEC_ID_MPEG1VIDEO:
2184
                    case CODEC_ID_MPEG2VIDEO:
2185
                        if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) {
2186
                            ff_mpeg1_encode_slice_header(s);
2187
                            ff_mpeg1_clean_buffers(s);
2188
                        }
2189
                    break;
2190
                    case CODEC_ID_H263:
2191
                    case CODEC_ID_H263P:
2192
                        if (CONFIG_H263_ENCODER)
2193
                            h263_encode_gob_header(s, mb_y);
2194
                    break;
2195
                    }
2196

    
2197
                    if(s->flags&CODEC_FLAG_PASS1){
2198
                        int bits= put_bits_count(&s->pb);
2199
                        s->misc_bits+= bits - s->last_bits;
2200
                        s->last_bits= bits;
2201
                    }
2202

    
2203
                    s->ptr_lastgob += current_packet_size;
2204
                    s->first_slice_line=1;
2205
                    s->resync_mb_x=mb_x;
2206
                    s->resync_mb_y=mb_y;
2207
                }
2208
            }
2209

    
2210
            if(  (s->resync_mb_x   == s->mb_x)
2211
               && s->resync_mb_y+1 == s->mb_y){
2212
                s->first_slice_line=0;
2213
            }
2214

    
2215
            s->mb_skipped=0;
2216
            s->dquant=0; //only for QP_RD
2217

    
2218
            if(mb_type & (mb_type-1) || (s->flags & CODEC_FLAG_QP_RD)){ // more than 1 MB type possible or CODEC_FLAG_QP_RD
2219
                int next_block=0;
2220
                int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
2221

    
2222
                copy_context_before_encode(&backup_s, s, -1);
2223
                backup_s.pb= s->pb;
2224
                best_s.data_partitioning= s->data_partitioning;
2225
                best_s.partitioned_frame= s->partitioned_frame;
2226
                if(s->data_partitioning){
2227
                    backup_s.pb2= s->pb2;
2228
                    backup_s.tex_pb= s->tex_pb;
2229
                }
2230

    
2231
                if(mb_type&CANDIDATE_MB_TYPE_INTER){
2232
                    s->mv_dir = MV_DIR_FORWARD;
2233
                    s->mv_type = MV_TYPE_16X16;
2234
                    s->mb_intra= 0;
2235
                    s->mv[0][0][0] = s->p_mv_table[xy][0];
2236
                    s->mv[0][0][1] = s->p_mv_table[xy][1];
2237
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER, pb, pb2, tex_pb,
2238
                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2239
                }
2240
                if(mb_type&CANDIDATE_MB_TYPE_INTER_I){
2241
                    s->mv_dir = MV_DIR_FORWARD;
2242
                    s->mv_type = MV_TYPE_FIELD;
2243
                    s->mb_intra= 0;
2244
                    for(i=0; i<2; i++){
2245
                        j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2246
                        s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2247
                        s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2248
                    }
2249
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER_I, pb, pb2, tex_pb,
2250
                                 &dmin, &next_block, 0, 0);
2251
                }
2252
                if(mb_type&CANDIDATE_MB_TYPE_SKIPPED){
2253
                    s->mv_dir = MV_DIR_FORWARD;
2254
                    s->mv_type = MV_TYPE_16X16;
2255
                    s->mb_intra= 0;
2256
                    s->mv[0][0][0] = 0;
2257
                    s->mv[0][0][1] = 0;
2258
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_SKIPPED, pb, pb2, tex_pb,
2259
                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2260
                }
2261
                if(mb_type&CANDIDATE_MB_TYPE_INTER4V){
2262
                    s->mv_dir = MV_DIR_FORWARD;
2263
                    s->mv_type = MV_TYPE_8X8;
2264
                    s->mb_intra= 0;
2265
                    for(i=0; i<4; i++){
2266
                        s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2267
                        s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2268
                    }
2269
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER4V, pb, pb2, tex_pb,
2270
                                 &dmin, &next_block, 0, 0);
2271
                }
2272
                if(mb_type&CANDIDATE_MB_TYPE_FORWARD){
2273
                    s->mv_dir = MV_DIR_FORWARD;
2274
                    s->mv_type = MV_TYPE_16X16;
2275
                    s->mb_intra= 0;
2276
                    s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2277
                    s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2278
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD, pb, pb2, tex_pb,
2279
                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2280
                }
2281
                if(mb_type&CANDIDATE_MB_TYPE_BACKWARD){
2282
                    s->mv_dir = MV_DIR_BACKWARD;
2283
                    s->mv_type = MV_TYPE_16X16;
2284
                    s->mb_intra= 0;
2285
                    s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2286
                    s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2287
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD, pb, pb2, tex_pb,
2288
                                 &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
2289
                }
2290
                if(mb_type&CANDIDATE_MB_TYPE_BIDIR){
2291
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2292
                    s->mv_type = MV_TYPE_16X16;
2293
                    s->mb_intra= 0;
2294
                    s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2295
                    s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2296
                    s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2297
                    s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2298
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb,
2299
                                 &dmin, &next_block, 0, 0);
2300
                }
2301
                if(mb_type&CANDIDATE_MB_TYPE_FORWARD_I){
2302
                    s->mv_dir = MV_DIR_FORWARD;
2303
                    s->mv_type = MV_TYPE_FIELD;
2304
                    s->mb_intra= 0;
2305
                    for(i=0; i<2; i++){
2306
                        j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2307
                        s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2308
                        s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2309
                    }
2310
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD_I, pb, pb2, tex_pb,
2311
                                 &dmin, &next_block, 0, 0);
2312
                }
2313
                if(mb_type&CANDIDATE_MB_TYPE_BACKWARD_I){
2314
                    s->mv_dir = MV_DIR_BACKWARD;
2315
                    s->mv_type = MV_TYPE_FIELD;
2316
                    s->mb_intra= 0;
2317
                    for(i=0; i<2; i++){
2318
                        j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2319
                        s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2320
                        s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2321
                    }
2322
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD_I, pb, pb2, tex_pb,
2323
                                 &dmin, &next_block, 0, 0);
2324
                }
2325
                if(mb_type&CANDIDATE_MB_TYPE_BIDIR_I){
2326
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2327
                    s->mv_type = MV_TYPE_FIELD;
2328
                    s->mb_intra= 0;
2329
                    for(dir=0; dir<2; dir++){
2330
                        for(i=0; i<2; i++){
2331
                            j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2332
                            s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2333
                            s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2334
                        }
2335
                    }
2336
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR_I, pb, pb2, tex_pb,
2337
                                 &dmin, &next_block, 0, 0);
2338
                }
2339
                if(mb_type&CANDIDATE_MB_TYPE_INTRA){
2340
                    s->mv_dir = 0;
2341
                    s->mv_type = MV_TYPE_16X16;
2342
                    s->mb_intra= 1;
2343
                    s->mv[0][0][0] = 0;
2344
                    s->mv[0][0][1] = 0;
2345
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTRA, pb, pb2, tex_pb,
2346
                                 &dmin, &next_block, 0, 0);
2347
                    if(s->h263_pred || s->h263_aic){
2348
                        if(best_s.mb_intra)
2349
                            s->mbintra_table[mb_x + mb_y*s->mb_stride]=1;
2350
                        else
2351
                            ff_clean_intra_table_entries(s); //old mode?
2352
                    }
2353
                }
2354

    
2355
                if((s->flags & CODEC_FLAG_QP_RD) && dmin < INT_MAX){
2356
                    if(best_s.mv_type==MV_TYPE_16X16){ //FIXME move 4mv after QPRD
2357
                        const int last_qp= backup_s.qscale;
2358
                        int qpi, qp, dc[6];
2359
                        DCTELEM ac[6][16];
2360
                        const int mvdir= (best_s.mv_dir&MV_DIR_BACKWARD) ? 1 : 0;
2361
                        static const int dquant_tab[4]={-1,1,-2,2};
2362

    
2363
                        assert(backup_s.dquant == 0);
2364

    
2365
                        //FIXME intra
2366
                        s->mv_dir= best_s.mv_dir;
2367
                        s->mv_type = MV_TYPE_16X16;
2368
                        s->mb_intra= best_s.mb_intra;
2369
                        s->mv[0][0][0] = best_s.mv[0][0][0];
2370
                        s->mv[0][0][1] = best_s.mv[0][0][1];
2371
                        s->mv[1][0][0] = best_s.mv[1][0][0];
2372
                        s->mv[1][0][1] = best_s.mv[1][0][1];
2373

    
2374
                        qpi = s->pict_type == FF_B_TYPE ? 2 : 0;
2375
                        for(; qpi<4; qpi++){
2376
                            int dquant= dquant_tab[qpi];
2377
                            qp= last_qp + dquant;
2378
                            if(qp < s->avctx->qmin || qp > s->avctx->qmax)
2379
                                continue;
2380
                            backup_s.dquant= dquant;
2381
                            if(s->mb_intra && s->dc_val[0]){
2382
                                for(i=0; i<6; i++){
2383
                                    dc[i]= s->dc_val[0][ s->block_index[i] ];
2384
                                    memcpy(ac[i], s->ac_val[0][s->block_index[i]], sizeof(DCTELEM)*16);
2385
                                }
2386
                            }
2387

    
2388
                            encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2389
                                         &dmin, &next_block, s->mv[mvdir][0][0], s->mv[mvdir][0][1]);
2390
                            if(best_s.qscale != qp){
2391
                                if(s->mb_intra && s->dc_val[0]){
2392
                                    for(i=0; i<6; i++){
2393
                                        s->dc_val[0][ s->block_index[i] ]= dc[i];
2394
                                        memcpy(s->ac_val[0][s->block_index[i]], ac[i], sizeof(DCTELEM)*16);
2395
                                    }
2396
                                }
2397
                            }
2398
                        }
2399
                    }
2400
                }
2401
                if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT){
2402
                    int mx= s->b_direct_mv_table[xy][0];
2403
                    int my= s->b_direct_mv_table[xy][1];
2404

    
2405
                    backup_s.dquant = 0;
2406
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2407
                    s->mb_intra= 0;
2408
                    ff_mpeg4_set_direct_mv(s, mx, my);
2409
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2410
                                 &dmin, &next_block, mx, my);
2411
                }
2412
                if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT0){
2413
                    backup_s.dquant = 0;
2414
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2415
                    s->mb_intra= 0;
2416
                    ff_mpeg4_set_direct_mv(s, 0, 0);
2417
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2418
                                 &dmin, &next_block, 0, 0);
2419
                }
2420
                if(!best_s.mb_intra && s->flags2&CODEC_FLAG2_SKIP_RD){
2421
                    int coded=0;
2422
                    for(i=0; i<6; i++)
2423
                        coded |= s->block_last_index[i];
2424
                    if(coded){
2425
                        int mx,my;
2426
                        memcpy(s->mv, best_s.mv, sizeof(s->mv));
2427
                        if(CONFIG_MPEG4_ENCODER && best_s.mv_dir & MV_DIRECT){
2428
                            mx=my=0; //FIXME find the one we actually used
2429
                            ff_mpeg4_set_direct_mv(s, mx, my);
2430
                        }else if(best_s.mv_dir&MV_DIR_BACKWARD){
2431
                            mx= s->mv[1][0][0];
2432
                            my= s->mv[1][0][1];
2433
                        }else{
2434
                            mx= s->mv[0][0][0];
2435
                            my= s->mv[0][0][1];
2436
                        }
2437

    
2438
                        s->mv_dir= best_s.mv_dir;
2439
                        s->mv_type = best_s.mv_type;
2440
                        s->mb_intra= 0;
2441
/*                        s->mv[0][0][0] = best_s.mv[0][0][0];
2442
                        s->mv[0][0][1] = best_s.mv[0][0][1];
2443
                        s->mv[1][0][0] = best_s.mv[1][0][0];
2444
                        s->mv[1][0][1] = best_s.mv[1][0][1];*/
2445
                        backup_s.dquant= 0;
2446
                        s->skipdct=1;
2447
                        encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2448
                                        &dmin, &next_block, mx, my);
2449
                        s->skipdct=0;
2450
                    }
2451
                }
2452

    
2453
                s->current_picture.qscale_table[xy]= best_s.qscale;
2454

    
2455
                copy_context_after_encode(s, &best_s, -1);
2456

    
2457
                pb_bits_count= put_bits_count(&s->pb);
2458
                flush_put_bits(&s->pb);
2459
                ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
2460
                s->pb= backup_s.pb;
2461

    
2462
                if(s->data_partitioning){
2463
                    pb2_bits_count= put_bits_count(&s->pb2);
2464
                    flush_put_bits(&s->pb2);
2465
                    ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
2466
                    s->pb2= backup_s.pb2;
2467

    
2468
                    tex_pb_bits_count= put_bits_count(&s->tex_pb);
2469
                    flush_put_bits(&s->tex_pb);
2470
                    ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
2471
                    s->tex_pb= backup_s.tex_pb;
2472
                }
2473
                s->last_bits= put_bits_count(&s->pb);
2474

    
2475
                if (CONFIG_H263_ENCODER &&
2476
                    s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
2477
                    ff_h263_update_motion_val(s);
2478

    
2479
                if(next_block==0){ //FIXME 16 vs linesize16
2480
                    s->dsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad                     , s->linesize  ,16);
2481
                    s->dsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize    , s->uvlinesize, 8);
2482
                    s->dsp.put_pixels_tab[1][0](s->dest[2], s->rd_scratchpad + 16*s->linesize + 8, s->uvlinesize, 8);
2483
                }
2484

    
2485
                if(s->avctx->mb_decision == FF_MB_DECISION_BITS)
2486
                    MPV_decode_mb(s, s->block);
2487
            } else {
2488
                int motion_x = 0, motion_y = 0;
2489
                s->mv_type=MV_TYPE_16X16;
2490
                // only one MB-Type possible
2491

    
2492
                switch(mb_type){
2493
                case CANDIDATE_MB_TYPE_INTRA:
2494
                    s->mv_dir = 0;
2495
                    s->mb_intra= 1;
2496
                    motion_x= s->mv[0][0][0] = 0;
2497
                    motion_y= s->mv[0][0][1] = 0;
2498
                    break;
2499
                case CANDIDATE_MB_TYPE_INTER:
2500
                    s->mv_dir = MV_DIR_FORWARD;
2501
                    s->mb_intra= 0;
2502
                    motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
2503
                    motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
2504
                    break;
2505
                case CANDIDATE_MB_TYPE_INTER_I:
2506
                    s->mv_dir = MV_DIR_FORWARD;
2507
                    s->mv_type = MV_TYPE_FIELD;
2508
                    s->mb_intra= 0;
2509
                    for(i=0; i<2; i++){
2510
                        j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2511
                        s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2512
                        s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2513
                    }
2514
                    break;
2515
                case CANDIDATE_MB_TYPE_INTER4V:
2516
                    s->mv_dir = MV_DIR_FORWARD;
2517
                    s->mv_type = MV_TYPE_8X8;
2518
                    s->mb_intra= 0;
2519
                    for(i=0; i<4; i++){
2520
                        s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2521
                        s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2522
                    }
2523
                    break;
2524
                case CANDIDATE_MB_TYPE_DIRECT:
2525
                    if (CONFIG_MPEG4_ENCODER) {
2526
                        s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2527
                        s->mb_intra= 0;
2528
                        motion_x=s->b_direct_mv_table[xy][0];
2529
                        motion_y=s->b_direct_mv_table[xy][1];
2530
                        ff_mpeg4_set_direct_mv(s, motion_x, motion_y);
2531
                    }
2532
                    break;
2533
                case CANDIDATE_MB_TYPE_DIRECT0:
2534
                    if (CONFIG_MPEG4_ENCODER) {
2535
                        s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2536
                        s->mb_intra= 0;
2537
                        ff_mpeg4_set_direct_mv(s, 0, 0);
2538
                    }
2539
                    break;
2540
                case CANDIDATE_MB_TYPE_BIDIR:
2541
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2542
                    s->mb_intra= 0;
2543
                    s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2544
                    s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2545
                    s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2546
                    s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2547
                    break;
2548
                case CANDIDATE_MB_TYPE_BACKWARD:
2549
                    s->mv_dir = MV_DIR_BACKWARD;
2550
                    s->mb_intra= 0;
2551
                    motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2552
                    motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2553
                    break;
2554
                case CANDIDATE_MB_TYPE_FORWARD:
2555
                    s->mv_dir = MV_DIR_FORWARD;
2556
                    s->mb_intra= 0;
2557
                    motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2558
                    motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2559
//                    printf(" %d %d ", motion_x, motion_y);
2560
                    break;
2561
                case CANDIDATE_MB_TYPE_FORWARD_I:
2562
                    s->mv_dir = MV_DIR_FORWARD;
2563
                    s->mv_type = MV_TYPE_FIELD;
2564
                    s->mb_intra= 0;
2565
                    for(i=0; i<2; i++){
2566
                        j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2567
                        s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2568
                        s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2569
                    }
2570
                    break;
2571
                case CANDIDATE_MB_TYPE_BACKWARD_I:
2572
                    s->mv_dir = MV_DIR_BACKWARD;
2573
                    s->mv_type = MV_TYPE_FIELD;
2574
                    s->mb_intra= 0;
2575
                    for(i=0; i<2; i++){
2576
                        j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2577
                        s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2578
                        s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2579
                    }
2580
                    break;
2581
                case CANDIDATE_MB_TYPE_BIDIR_I:
2582
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2583
                    s->mv_type = MV_TYPE_FIELD;
2584
                    s->mb_intra= 0;
2585
                    for(dir=0; dir<2; dir++){
2586
                        for(i=0; i<2; i++){
2587
                            j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2588
                            s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2589
                            s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2590
                        }
2591
                    }
2592
                    break;
2593
                default:
2594
                    av_log(s->avctx, AV_LOG_ERROR, "illegal MB type\n");
2595
                }
2596

    
2597
                encode_mb(s, motion_x, motion_y);
2598

    
2599
                // RAL: Update last macroblock type
2600
                s->last_mv_dir = s->mv_dir;
2601

    
2602
                if (CONFIG_H263_ENCODER &&
2603
                    s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
2604
                    ff_h263_update_motion_val(s);
2605

    
2606
                MPV_decode_mb(s, s->block);
2607
            }
2608

    
2609
            /* clean the MV table in IPS frames for direct mode in B frames */
2610
            if(s->mb_intra /* && I,P,S_TYPE */){
2611
                s->p_mv_table[xy][0]=0;
2612
                s->p_mv_table[xy][1]=0;
2613
            }
2614

    
2615
            if(s->flags&CODEC_FLAG_PSNR){
2616
                int w= 16;
2617
                int h= 16;
2618

    
2619
                if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
2620
                if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
2621

    
2622
                s->current_picture.error[0] += sse(
2623
                    s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16,
2624
                    s->dest[0], w, h, s->linesize);
2625
                s->current_picture.error[1] += sse(
2626
                    s, s->new_picture.data[1] + s->mb_x*8  + s->mb_y*s->uvlinesize*chr_h,
2627
                    s->dest[1], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
2628
                s->current_picture.error[2] += sse(
2629
                    s, s->new_picture.data[2] + s->mb_x*8  + s->mb_y*s->uvlinesize*chr_h,
2630
                    s->dest[2], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
2631
            }
2632
            if(s->loop_filter){
2633
                if(CONFIG_H263_ENCODER && s->out_format == FMT_H263)
2634
                    ff_h263_loop_filter(s);
2635
            }
2636
//printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, put_bits_count(&s->pb));
2637
        }
2638
    }
2639

    
2640
    //not beautiful here but we must write it before flushing so it has to be here
2641
    if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == FF_I_TYPE)
2642
        msmpeg4_encode_ext_header(s);
2643

    
2644
    write_slice_end(s);
2645

    
2646
    /* Send the last GOB if RTP */
2647
    if (s->avctx->rtp_callback) {
2648
        int number_mb = (mb_y - s->resync_mb_y)*s->mb_width - s->resync_mb_x;
2649
        pdif = put_bits_ptr(&s->pb) - s->ptr_lastgob;
2650
        /* Call the RTP callback to send the last GOB */
2651
        emms_c();
2652
        s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, pdif, number_mb);
2653
    }
2654

    
2655
    return 0;
2656
}
2657

    
2658
#define MERGE(field) dst->field += src->field; src->field=0
2659
static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src){
2660
    MERGE(me.scene_change_score);
2661
    MERGE(me.mc_mb_var_sum_temp);
2662
    MERGE(me.mb_var_sum_temp);
2663
}
2664

    
2665
static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src){
2666
    int i;
2667

    
2668
    MERGE(dct_count[0]); //note, the other dct vars are not part of the context
2669
    MERGE(dct_count[1]);
2670
    MERGE(mv_bits);
2671
    MERGE(i_tex_bits);
2672
    MERGE(p_tex_bits);
2673
    MERGE(i_count);
2674
    MERGE(f_count);
2675
    MERGE(b_count);
2676
    MERGE(skip_count);
2677
    MERGE(misc_bits);
2678
    MERGE(error_count);
2679
    MERGE(padding_bug_score);
2680
    MERGE(current_picture.error[0]);
2681
    MERGE(current_picture.error[1]);
2682
    MERGE(current_picture.error[2]);
2683

    
2684
    if(dst->avctx->noise_reduction){
2685
        for(i=0; i<64; i++){
2686
            MERGE(dct_error_sum[0][i]);
2687
            MERGE(dct_error_sum[1][i]);
2688
        }
2689
    }
2690

    
2691
    assert(put_bits_count(&src->pb) % 8 ==0);
2692
    assert(put_bits_count(&dst->pb) % 8 ==0);
2693
    ff_copy_bits(&dst->pb, src->pb.buf, put_bits_count(&src->pb));
2694
    flush_put_bits(&dst->pb);
2695
}
2696

    
2697
static int estimate_qp(MpegEncContext *s, int dry_run){
2698
    if (s->next_lambda){
2699
        s->current_picture_ptr->quality=
2700
        s->current_picture.quality = s->next_lambda;
2701
        if(!dry_run) s->next_lambda= 0;
2702
    } else if (!s->fixed_qscale) {
2703
        s->current_picture_ptr->quality=
2704
        s->current_picture.quality = ff_rate_estimate_qscale(s, dry_run);
2705
        if (s->current_picture.quality < 0)
2706
            return -1;
2707
    }
2708

    
2709
    if(s->adaptive_quant){
2710
        switch(s->codec_id){
2711
        case CODEC_ID_MPEG4:
2712
            if (CONFIG_MPEG4_ENCODER)
2713
                ff_clean_mpeg4_qscales(s);
2714
            break;
2715
        case CODEC_ID_H263:
2716
        case CODEC_ID_H263P:
2717
        case CODEC_ID_FLV1:
2718
            if (CONFIG_H263_ENCODER)
2719
                ff_clean_h263_qscales(s);
2720
            break;
2721
        default:
2722
            ff_init_qscale_tab(s);
2723
        }
2724

    
2725
        s->lambda= s->lambda_table[0];
2726
        //FIXME broken
2727
    }else
2728
        s->lambda= s->current_picture.quality;
2729
//printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality);
2730
    update_qscale(s);
2731
    return 0;
2732
}
2733

    
2734
/* must be called before writing the header */
2735
static void set_frame_distances(MpegEncContext * s){
2736
    assert(s->current_picture_ptr->pts != AV_NOPTS_VALUE);
2737
    s->time= s->current_picture_ptr->pts*s->avctx->time_base.num;
2738

    
2739
    if(s->pict_type==FF_B_TYPE){
2740
        s->pb_time= s->pp_time - (s->last_non_b_time - s->time);
2741
        assert(s->pb_time > 0 && s->pb_time < s->pp_time);
2742
    }else{
2743
        s->pp_time= s->time - s->last_non_b_time;
2744
        s->last_non_b_time= s->time;
2745
        assert(s->picture_number==0 || s->pp_time > 0);
2746
    }
2747
}
2748

    
2749
static int encode_picture(MpegEncContext *s, int picture_number)
2750
{
2751
    int i;
2752
    int bits;
2753

    
2754
    s->picture_number = picture_number;
2755

    
2756
    /* Reset the average MB variance */
2757
    s->me.mb_var_sum_temp    =
2758
    s->me.mc_mb_var_sum_temp = 0;
2759

    
2760
    /* we need to initialize some time vars before we can encode b-frames */
2761
    // RAL: Condition added for MPEG1VIDEO
2762
    if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->h263_msmpeg4))
2763
        set_frame_distances(s);
2764
    if(CONFIG_MPEG4_ENCODER && s->codec_id == CODEC_ID_MPEG4)
2765
        ff_set_mpeg4_time(s);
2766

    
2767
    s->me.scene_change_score=0;
2768

    
2769
//    s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME rate distortion
2770

    
2771
    if(s->pict_type==FF_I_TYPE){
2772
        if(s->msmpeg4_version >= 3) s->no_rounding=1;
2773
        else                        s->no_rounding=0;
2774
    }else if(s->pict_type!=FF_B_TYPE){
2775
        if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
2776
            s->no_rounding ^= 1;
2777
    }
2778

    
2779
    if(s->flags & CODEC_FLAG_PASS2){
2780
        if (estimate_qp(s,1) < 0)
2781
            return -1;
2782
        ff_get_2pass_fcode(s);
2783
    }else if(!(s->flags & CODEC_FLAG_QSCALE)){
2784
        if(s->pict_type==FF_B_TYPE)
2785
            s->lambda= s->last_lambda_for[s->pict_type];
2786
        else
2787
            s->lambda= s->last_lambda_for[s->last_non_b_pict_type];
2788
        update_qscale(s);
2789
    }
2790

    
2791
    s->mb_intra=0; //for the rate distortion & bit compare functions
2792
    for(i=1; i<s->avctx->thread_count; i++){
2793
        ff_update_duplicate_context(s->thread_context[i], s);
2794
    }
2795

    
2796
    if(ff_init_me(s)<0)
2797
        return -1;
2798

    
2799
    /* Estimate motion for every MB */
2800
    if(s->pict_type != FF_I_TYPE){
2801
        s->lambda = (s->lambda * s->avctx->me_penalty_compensation + 128)>>8;
2802
        s->lambda2= (s->lambda2* (int64_t)s->avctx->me_penalty_compensation + 128)>>8;
2803
        if(s->pict_type != FF_B_TYPE && s->avctx->me_threshold==0){
2804
            if((s->avctx->pre_me && s->last_non_b_pict_type==FF_I_TYPE) || s->avctx->pre_me==2){
2805
                s->avctx->execute(s->avctx, pre_estimate_motion_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2806
            }
2807
        }
2808

    
2809
        s->avctx->execute(s->avctx, estimate_motion_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2810
    }else /* if(s->pict_type == FF_I_TYPE) */{
2811
        /* I-Frame */
2812
        for(i=0; i<s->mb_stride*s->mb_height; i++)
2813
            s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2814

    
2815
        if(!s->fixed_qscale){
2816
            /* finding spatial complexity for I-frame rate control */
2817
            s->avctx->execute(s->avctx, mb_var_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2818
        }
2819
    }
2820
    for(i=1; i<s->avctx->thread_count; i++){
2821
        merge_context_after_me(s, s->thread_context[i]);
2822
    }
2823
    s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum= s->me.mc_mb_var_sum_temp;
2824
    s->current_picture.   mb_var_sum= s->current_picture_ptr->   mb_var_sum= s->me.   mb_var_sum_temp;
2825
    emms_c();
2826

    
2827
    if(s->me.scene_change_score > s->avctx->scenechange_threshold && s->pict_type == FF_P_TYPE){
2828
        s->pict_type= FF_I_TYPE;
2829
        for(i=0; i<s->mb_stride*s->mb_height; i++)
2830
            s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2831
//printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum);
2832
    }
2833

    
2834
    if(!s->umvplus){
2835
        if(s->pict_type==FF_P_TYPE || s->pict_type==FF_S_TYPE) {
2836
            s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER);
2837

    
2838
            if(s->flags & CODEC_FLAG_INTERLACED_ME){
2839
                int a,b;
2840
                a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select
2841
                b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I);
2842
                s->f_code= FFMAX3(s->f_code, a, b);
2843
            }
2844

    
2845
            ff_fix_long_p_mvs(s);
2846
            ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0);
2847
            if(s->flags & CODEC_FLAG_INTERLACED_ME){
2848
                int j;
2849
                for(i=0; i<2; i++){
2850
                    for(j=0; j<2; j++)
2851
                        ff_fix_long_mvs(s, s->p_field_select_table[i], j,
2852
                                        s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0);
2853
                }
2854
            }
2855
        }
2856

    
2857
        if(s->pict_type==FF_B_TYPE){
2858
            int a, b;
2859

    
2860
            a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD);
2861
            b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2862
            s->f_code = FFMAX(a, b);
2863

    
2864
            a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD);
2865
            b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2866
            s->b_code = FFMAX(a, b);
2867

    
2868
            ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1);
2869
            ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1);
2870
            ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2871
            ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2872
            if(s->flags & CODEC_FLAG_INTERLACED_ME){
2873
                int dir, j;
2874
                for(dir=0; dir<2; dir++){
2875
                    for(i=0; i<2; i++){
2876
                        for(j=0; j<2; j++){
2877
                            int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I)
2878
                                          : (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I);
2879
                            ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j,
2880
                                            s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1);
2881
                        }
2882
                    }
2883
                }
2884
            }
2885
        }
2886
    }
2887

    
2888
    if (estimate_qp(s, 0) < 0)
2889
        return -1;
2890

    
2891
    if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==FF_I_TYPE && !(s->flags & CODEC_FLAG_QSCALE))
2892
        s->qscale= 3; //reduce clipping problems
2893

    
2894
    if (s->out_format == FMT_MJPEG) {
2895
        /* for mjpeg, we do include qscale in the matrix */
2896
        s->intra_matrix[0] = ff_mpeg1_default_intra_matrix[0];
2897
        for(i=1;i<64;i++){
2898
            int j= s->dsp.idct_permutation[i];
2899

    
2900
            s->intra_matrix[j] = av_clip_uint8((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
2901
        }
2902
        ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
2903
                       s->intra_matrix, s->intra_quant_bias, 8, 8, 1);
2904
        s->qscale= 8;
2905
    }
2906

    
2907
    //FIXME var duplication
2908
    s->current_picture_ptr->key_frame=
2909
    s->current_picture.key_frame= s->pict_type == FF_I_TYPE; //FIXME pic_ptr
2910
    s->current_picture_ptr->pict_type=
2911
    s->current_picture.pict_type= s->pict_type;
2912

    
2913
    if(s->current_picture.key_frame)
2914
        s->picture_in_gop_number=0;
2915

    
2916
    s->last_bits= put_bits_count(&s->pb);
2917
    switch(s->out_format) {
2918
    case FMT_MJPEG:
2919
        if (CONFIG_MJPEG_ENCODER)
2920
            ff_mjpeg_encode_picture_header(s);
2921
        break;
2922
    case FMT_H261:
2923
        if (CONFIG_H261_ENCODER)
2924
            ff_h261_encode_picture_header(s, picture_number);
2925
        break;
2926
    case FMT_H263:
2927
        if (CONFIG_WMV2_ENCODER && s->codec_id == CODEC_ID_WMV2)
2928
            ff_wmv2_encode_picture_header(s, picture_number);
2929
        else if (CONFIG_MSMPEG4_ENCODER && s->h263_msmpeg4)
2930
            msmpeg4_encode_picture_header(s, picture_number);
2931
        else if (CONFIG_MPEG4_ENCODER && s->h263_pred)
2932
            mpeg4_encode_picture_header(s, picture_number);
2933
        else if (CONFIG_RV10_ENCODER && s->codec_id == CODEC_ID_RV10)
2934
            rv10_encode_picture_header(s, picture_number);
2935
        else if (CONFIG_RV20_ENCODER && s->codec_id == CODEC_ID_RV20)
2936
            rv20_encode_picture_header(s, picture_number);
2937
        else if (CONFIG_FLV_ENCODER && s->codec_id == CODEC_ID_FLV1)
2938
            ff_flv_encode_picture_header(s, picture_number);
2939
        else if (CONFIG_H263_ENCODER)
2940
            h263_encode_picture_header(s, picture_number);
2941
        break;
2942
    case FMT_MPEG1:
2943
        if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
2944
            mpeg1_encode_picture_header(s, picture_number);
2945
        break;
2946
    case FMT_H264:
2947
        break;
2948
    default:
2949
        assert(0);
2950
    }
2951
    bits= put_bits_count(&s->pb);
2952
    s->header_bits= bits - s->last_bits;
2953

    
2954
    for(i=1; i<s->avctx->thread_count; i++){
2955
        update_duplicate_context_after_me(s->thread_context[i], s);
2956
    }
2957
    s->avctx->execute(s->avctx, encode_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2958
    for(i=1; i<s->avctx->thread_count; i++){
2959
        merge_context_after_encode(s, s->thread_context[i]);
2960
    }
2961
    emms_c();
2962
    return 0;
2963
}
2964

    
2965
void  denoise_dct_c(MpegEncContext *s, DCTELEM *block){
2966
    const int intra= s->mb_intra;
2967
    int i;
2968

    
2969
    s->dct_count[intra]++;
2970

    
2971
    for(i=0; i<64; i++){
2972
        int level= block[i];
2973

    
2974
        if(level){
2975
            if(level>0){
2976
                s->dct_error_sum[intra][i] += level;
2977
                level -= s->dct_offset[intra][i];
2978
                if(level<0) level=0;
2979
            }else{
2980
                s->dct_error_sum[intra][i] -= level;
2981
                level += s->dct_offset[intra][i];
2982
                if(level>0) level=0;
2983
            }
2984
            block[i]= level;
2985
        }
2986
    }
2987
}
2988

    
2989
int dct_quantize_trellis_c(MpegEncContext *s,
2990
                        DCTELEM *block, int n,
2991
                        int qscale, int *overflow){
2992
    const int *qmat;
2993
    const uint8_t *scantable= s->intra_scantable.scantable;
2994
    const uint8_t *perm_scantable= s->intra_scantable.permutated;
2995
    int max=0;
2996
    unsigned int threshold1, threshold2;
2997
    int bias=0;
2998
    int run_tab[65];
2999
    int level_tab[65];
3000
    int score_tab[65];
3001
    int survivor[65];
3002
    int survivor_count;
3003
    int last_run=0;
3004
    int last_level=0;
3005
    int last_score= 0;
3006
    int last_i;
3007
    int coeff[2][64];
3008
    int coeff_count[64];
3009
    int qmul, qadd, start_i, last_non_zero, i, dc;
3010
    const int esc_length= s->ac_esc_length;
3011
    uint8_t * length;
3012
    uint8_t * last_length;
3013
    const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6);
3014

    
3015
    s->dsp.fdct (block);
3016

    
3017
    if(s->dct_error_sum)
3018
        s->denoise_dct(s, block);
3019
    qmul= qscale*16;
3020
    qadd= ((qscale-1)|1)*8;
3021

    
3022
    if (s->mb_intra) {
3023
        int q;
3024
        if (!s->h263_aic) {
3025
            if (n < 4)
3026
                q = s->y_dc_scale;
3027
            else
3028
                q = s->c_dc_scale;
3029
            q = q << 3;
3030
        } else{
3031
            /* For AIC we skip quant/dequant of INTRADC */
3032
            q = 1 << 3;
3033
            qadd=0;
3034
        }
3035

    
3036
        /* note: block[0] is assumed to be positive */
3037
        block[0] = (block[0] + (q >> 1)) / q;
3038
        start_i = 1;
3039
        last_non_zero = 0;
3040
        qmat = s->q_intra_matrix[qscale];
3041
        if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3042
            bias= 1<<(QMAT_SHIFT-1);
3043
        length     = s->intra_ac_vlc_length;
3044
        last_length= s->intra_ac_vlc_last_length;
3045
    } else {
3046
        start_i = 0;
3047
        last_non_zero = -1;
3048
        qmat = s->q_inter_matrix[qscale];
3049
        length     = s->inter_ac_vlc_length;
3050
        last_length= s->inter_ac_vlc_last_length;
3051
    }
3052
    last_i= start_i;
3053

    
3054
    threshold1= (1<<QMAT_SHIFT) - bias - 1;
3055
    threshold2= (threshold1<<1);
3056

    
3057
    for(i=63; i>=start_i; i--) {
3058
        const int j = scantable[i];
3059
        int level = block[j] * qmat[j];
3060

    
3061
        if(((unsigned)(level+threshold1))>threshold2){
3062
            last_non_zero = i;
3063
            break;
3064
        }
3065
    }
3066

    
3067
    for(i=start_i; i<=last_non_zero; i++) {
3068
        const int j = scantable[i];
3069
        int level = block[j] * qmat[j];
3070

    
3071
//        if(   bias+level >= (1<<(QMAT_SHIFT - 3))
3072
//           || bias-level >= (1<<(QMAT_SHIFT - 3))){
3073
        if(((unsigned)(level+threshold1))>threshold2){
3074
            if(level>0){
3075
                level= (bias + level)>>QMAT_SHIFT;
3076
                coeff[0][i]= level;
3077
                coeff[1][i]= level-1;
3078
//                coeff[2][k]= level-2;
3079
            }else{
3080
                level= (bias - level)>>QMAT_SHIFT;
3081
                coeff[0][i]= -level;
3082
                coeff[1][i]= -level+1;
3083
//                coeff[2][k]= -level+2;
3084
            }
3085
            coeff_count[i]= FFMIN(level, 2);
3086
            assert(coeff_count[i]);
3087
            max |=level;
3088
        }else{
3089
            coeff[0][i]= (level>>31)|1;
3090
            coeff_count[i]= 1;
3091
        }
3092
    }
3093

    
3094
    *overflow= s->max_qcoeff < max; //overflow might have happened
3095

    
3096
    if(last_non_zero < start_i){
3097
        memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3098
        return last_non_zero;
3099
    }
3100

    
3101
    score_tab[start_i]= 0;
3102
    survivor[0]= start_i;
3103
    survivor_count= 1;
3104

    
3105
    for(i=start_i; i<=last_non_zero; i++){
3106
        int level_index, j, zero_distortion;
3107
        int dct_coeff= FFABS(block[ scantable[i] ]);
3108
        int best_score=256*256*256*120;
3109

    
3110
        if (   s->dsp.fdct == fdct_ifast
3111
#ifndef FAAN_POSTSCALE
3112
            || s->dsp.fdct == ff_faandct
3113
#endif
3114
           )
3115
            dct_coeff= (dct_coeff*ff_inv_aanscales[ scantable[i] ]) >> 12;
3116
        zero_distortion= dct_coeff*dct_coeff;
3117

    
3118
        for(level_index=0; level_index < coeff_count[i]; level_index++){
3119
            int distortion;
3120
            int level= coeff[level_index][i];
3121
            const int alevel= FFABS(level);
3122
            int unquant_coeff;
3123

    
3124
            assert(level);
3125

    
3126
            if(s->out_format == FMT_H263){
3127
                unquant_coeff= alevel*qmul + qadd;
3128
            }else{ //MPEG1
3129
                j= s->dsp.idct_permutation[ scantable[i] ]; //FIXME optimize
3130
                if(s->mb_intra){
3131
                        unquant_coeff = (int)(  alevel  * qscale * s->intra_matrix[j]) >> 3;
3132
                        unquant_coeff =   (unquant_coeff - 1) | 1;
3133
                }else{
3134
                        unquant_coeff = (((  alevel  << 1) + 1) * qscale * ((int) s->inter_matrix[j])) >> 4;
3135
                        unquant_coeff =   (unquant_coeff - 1) | 1;
3136
                }
3137
                unquant_coeff<<= 3;
3138
            }
3139

    
3140
            distortion= (unquant_coeff - dct_coeff) * (unquant_coeff - dct_coeff) - zero_distortion;
3141
            level+=64;
3142
            if((level&(~127)) == 0){
3143
                for(j=survivor_count-1; j>=0; j--){
3144
                    int run= i - survivor[j];
3145
                    int score= distortion + length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3146
                    score += score_tab[i-run];
3147

    
3148
                    if(score < best_score){
3149
                        best_score= score;
3150
                        run_tab[i+1]= run;
3151
                        level_tab[i+1]= level-64;
3152
                    }
3153
                }
3154

    
3155
                if(s->out_format == FMT_H263){
3156
                    for(j=survivor_count-1; j>=0; j--){
3157
                        int run= i - survivor[j];
3158
                        int score= distortion + last_length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3159
                        score += score_tab[i-run];
3160
                        if(score < last_score){
3161
                            last_score= score;
3162
                            last_run= run;
3163
                            last_level= level-64;
3164
                            last_i= i+1;
3165
                        }
3166
                    }
3167
                }
3168
            }else{
3169
                distortion += esc_length*lambda;
3170
                for(j=survivor_count-1; j>=0; j--){
3171
                    int run= i - survivor[j];
3172
                    int score= distortion + score_tab[i-run];
3173

    
3174
                    if(score < best_score){
3175
                        best_score= score;
3176
                        run_tab[i+1]= run;
3177
                        level_tab[i+1]= level-64;
3178
                    }
3179
                }
3180

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

    
3196
        score_tab[i+1]= best_score;
3197

    
3198
        //Note: there is a vlc code in mpeg4 which is 1 bit shorter then another one with a shorter run and the same level
3199
        if(last_non_zero <= 27){
3200
            for(; survivor_count; survivor_count--){
3201
                if(score_tab[ survivor[survivor_count-1] ] <= best_score)
3202
                    break;
3203
            }
3204
        }else{
3205
            for(; survivor_count; survivor_count--){
3206
                if(score_tab[ survivor[survivor_count-1] ] <= best_score + lambda)
3207
                    break;
3208
            }
3209
        }
3210

    
3211
        survivor[ survivor_count++ ]= i+1;
3212
    }
3213

    
3214
    if(s->out_format != FMT_H263){
3215
        last_score= 256*256*256*120;
3216
        for(i= survivor[0]; i<=last_non_zero + 1; i++){
3217
            int score= score_tab[i];
3218
            if(i) score += lambda*2; //FIXME exacter?
3219

    
3220
            if(score < last_score){
3221
                last_score= score;
3222
                last_i= i;
3223
                last_level= level_tab[i];
3224
                last_run= run_tab[i];
3225
            }
3226
        }
3227
    }
3228

    
3229
    s->coded_score[n] = last_score;
3230

    
3231
    dc= FFABS(block[0]);
3232
    last_non_zero= last_i - 1;
3233
    memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3234

    
3235
    if(last_non_zero < start_i)
3236
        return last_non_zero;
3237

    
3238
    if(last_non_zero == 0 && start_i == 0){
3239
        int best_level= 0;
3240
        int best_score= dc * dc;
3241

    
3242
        for(i=0; i<coeff_count[0]; i++){
3243
            int level= coeff[i][0];
3244
            int alevel= FFABS(level);
3245
            int unquant_coeff, score, distortion;
3246

    
3247
            if(s->out_format == FMT_H263){
3248
                    unquant_coeff= (alevel*qmul + qadd)>>3;
3249
            }else{ //MPEG1
3250
                    unquant_coeff = (((  alevel  << 1) + 1) * qscale * ((int) s->inter_matrix[0])) >> 4;
3251
                    unquant_coeff =   (unquant_coeff - 1) | 1;
3252
            }
3253
            unquant_coeff = (unquant_coeff + 4) >> 3;
3254
            unquant_coeff<<= 3 + 3;
3255

    
3256
            distortion= (unquant_coeff - dc) * (unquant_coeff - dc);
3257
            level+=64;
3258
            if((level&(~127)) == 0) score= distortion + last_length[UNI_AC_ENC_INDEX(0, level)]*lambda;
3259
            else                    score= distortion + esc_length*lambda;
3260

    
3261
            if(score < best_score){
3262
                best_score= score;
3263
                best_level= level - 64;
3264
            }
3265
        }
3266
        block[0]= best_level;
3267
        s->coded_score[n] = best_score - dc*dc;
3268
        if(best_level == 0) return -1;
3269
        else                return last_non_zero;
3270
    }
3271

    
3272
    i= last_i;
3273
    assert(last_level);
3274

    
3275
    block[ perm_scantable[last_non_zero] ]= last_level;
3276
    i -= last_run + 1;
3277

    
3278
    for(; i>start_i; i -= run_tab[i] + 1){
3279
        block[ perm_scantable[i-1] ]= level_tab[i];
3280
    }
3281

    
3282
    return last_non_zero;
3283
}
3284

    
3285
//#define REFINE_STATS 1
3286
static int16_t basis[64][64];
3287

    
3288
static void build_basis(uint8_t *perm){
3289
    int i, j, x, y;
3290
    emms_c();
3291
    for(i=0; i<8; i++){
3292
        for(j=0; j<8; j++){
3293
            for(y=0; y<8; y++){
3294
                for(x=0; x<8; x++){
3295
                    double s= 0.25*(1<<BASIS_SHIFT);
3296
                    int index= 8*i + j;
3297
                    int perm_index= perm[index];
3298
                    if(i==0) s*= sqrt(0.5);
3299
                    if(j==0) s*= sqrt(0.5);
3300
                    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)));
3301
                }
3302
            }
3303
        }
3304
    }
3305
}
3306

    
3307
static int dct_quantize_refine(MpegEncContext *s, //FIXME breaks denoise?
3308
                        DCTELEM *block, int16_t *weight, DCTELEM *orig,
3309
                        int n, int qscale){
3310
    int16_t rem[64];
3311
    DECLARE_ALIGNED_16(DCTELEM, d1[64]);
3312
    const uint8_t *scantable= s->intra_scantable.scantable;
3313
    const uint8_t *perm_scantable= s->intra_scantable.permutated;
3314
//    unsigned int threshold1, threshold2;
3315
//    int bias=0;
3316
    int run_tab[65];
3317
    int prev_run=0;
3318
    int prev_level=0;
3319
    int qmul, qadd, start_i, last_non_zero, i, dc;
3320
    uint8_t * length;
3321
    uint8_t * last_length;
3322
    int lambda;
3323
    int rle_index, run, q = 1, sum; //q is only used when s->mb_intra is true
3324
#ifdef REFINE_STATS
3325
static int count=0;
3326
static int after_last=0;
3327
static int to_zero=0;
3328
static int from_zero=0;
3329
static int raise=0;
3330
static int lower=0;
3331
static int messed_sign=0;
3332
#endif
3333

    
3334
    if(basis[0][0] == 0)
3335
        build_basis(s->dsp.idct_permutation);
3336

    
3337
    qmul= qscale*2;
3338
    qadd= (qscale-1)|1;
3339
    if (s->mb_intra) {
3340
        if (!s->h263_aic) {
3341
            if (n < 4)
3342
                q = s->y_dc_scale;
3343
            else
3344
                q = s->c_dc_scale;
3345
        } else{
3346
            /* For AIC we skip quant/dequant of INTRADC */
3347
            q = 1;
3348
            qadd=0;
3349
        }
3350
        q <<= RECON_SHIFT-3;
3351
        /* note: block[0] is assumed to be positive */
3352
        dc= block[0]*q;
3353
//        block[0] = (block[0] + (q >> 1)) / q;
3354
        start_i = 1;
3355
//        if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3356
//            bias= 1<<(QMAT_SHIFT-1);
3357
        length     = s->intra_ac_vlc_length;
3358
        last_length= s->intra_ac_vlc_last_length;
3359
    } else {
3360
        dc= 0;
3361
        start_i = 0;
3362
        length     = s->inter_ac_vlc_length;
3363
        last_length= s->inter_ac_vlc_last_length;
3364
    }
3365
    last_non_zero = s->block_last_index[n];
3366

    
3367
#ifdef REFINE_STATS
3368
{START_TIMER
3369
#endif
3370
    dc += (1<<(RECON_SHIFT-1));
3371
    for(i=0; i<64; i++){
3372
        rem[i]= dc - (orig[i]<<RECON_SHIFT); //FIXME  use orig dirrectly instead of copying to rem[]
3373
    }
3374
#ifdef REFINE_STATS
3375
STOP_TIMER("memset rem[]")}
3376
#endif
3377
    sum=0;
3378
    for(i=0; i<64; i++){
3379
        int one= 36;
3380
        int qns=4;
3381
        int w;
3382

    
3383
        w= FFABS(weight[i]) + qns*one;
3384
        w= 15 + (48*qns*one + w/2)/w; // 16 .. 63
3385

    
3386
        weight[i] = w;
3387
//        w=weight[i] = (63*qns + (w/2)) / w;
3388

    
3389
        assert(w>0);
3390
        assert(w<(1<<6));
3391
        sum += w*w;
3392
    }
3393
    lambda= sum*(uint64_t)s->lambda2 >> (FF_LAMBDA_SHIFT - 6 + 6 + 6 + 6);
3394
#ifdef REFINE_STATS
3395
{START_TIMER
3396
#endif
3397
    run=0;
3398
    rle_index=0;
3399
    for(i=start_i; i<=last_non_zero; i++){
3400
        int j= perm_scantable[i];
3401
        const int level= block[j];
3402
        int coeff;
3403

    
3404
        if(level){
3405
            if(level<0) coeff= qmul*level - qadd;
3406
            else        coeff= qmul*level + qadd;
3407
            run_tab[rle_index++]=run;
3408
            run=0;
3409

    
3410
            s->dsp.add_8x8basis(rem, basis[j], coeff);
3411
        }else{
3412
            run++;
3413
        }
3414
    }
3415
#ifdef REFINE_STATS
3416
if(last_non_zero>0){
3417
STOP_TIMER("init rem[]")
3418
}
3419
}
3420

    
3421
{START_TIMER
3422
#endif
3423
    for(;;){
3424
        int best_score=s->dsp.try_8x8basis(rem, weight, basis[0], 0);
3425
        int best_coeff=0;
3426
        int best_change=0;
3427
        int run2, best_unquant_change=0, analyze_gradient;
3428
#ifdef REFINE_STATS
3429
{START_TIMER
3430
#endif
3431
        analyze_gradient = last_non_zero > 2 || s->avctx->quantizer_noise_shaping >= 3;
3432

    
3433
        if(analyze_gradient){
3434
#ifdef REFINE_STATS
3435
{START_TIMER
3436
#endif
3437
            for(i=0; i<64; i++){
3438
                int w= weight[i];
3439

    
3440
                d1[i] = (rem[i]*w*w + (1<<(RECON_SHIFT+12-1)))>>(RECON_SHIFT+12);
3441
            }
3442
#ifdef REFINE_STATS
3443
STOP_TIMER("rem*w*w")}
3444
{START_TIMER
3445
#endif
3446
            s->dsp.fdct(d1);
3447
#ifdef REFINE_STATS
3448
STOP_TIMER("dct")}
3449
#endif
3450
        }
3451

    
3452
        if(start_i){
3453
            const int level= block[0];
3454
            int change, old_coeff;
3455

    
3456
            assert(s->mb_intra);
3457

    
3458
            old_coeff= q*level;
3459

    
3460
            for(change=-1; change<=1; change+=2){
3461
                int new_level= level + change;
3462
                int score, new_coeff;
3463

    
3464
                new_coeff= q*new_level;
3465
                if(new_coeff >= 2048 || new_coeff < 0)
3466
                    continue;
3467

    
3468
                score= s->dsp.try_8x8basis(rem, weight, basis[0], new_coeff - old_coeff);
3469
                if(score<best_score){
3470
                    best_score= score;
3471
                    best_coeff= 0;
3472
                    best_change= change;
3473
                    best_unquant_change= new_coeff - old_coeff;
3474
                }
3475
            }
3476
        }
3477

    
3478
        run=0;
3479
        rle_index=0;
3480
        run2= run_tab[rle_index++];
3481
        prev_level=0;
3482
        prev_run=0;
3483

    
3484
        for(i=start_i; i<64; i++){
3485
            int j= perm_scantable[i];
3486
            const int level= block[j];
3487
            int change, old_coeff;
3488

    
3489
            if(s->avctx->quantizer_noise_shaping < 3 && i > last_non_zero + 1)
3490
                break;
3491

    
3492
            if(level){
3493
                if(level<0) old_coeff= qmul*level - qadd;
3494
                else        old_coeff= qmul*level + qadd;
3495
                run2= run_tab[rle_index++]; //FIXME ! maybe after last
3496
            }else{
3497
                old_coeff=0;
3498
                run2--;
3499
                assert(run2>=0 || i >= last_non_zero );
3500
            }
3501

    
3502
            for(change=-1; change<=1; change+=2){
3503
                int new_level= level + change;
3504
                int score, new_coeff, unquant_change;
3505

    
3506
                score=0;
3507
                if(s->avctx->quantizer_noise_shaping < 2 && FFABS(new_level) > FFABS(level))
3508
                   continue;
3509

    
3510
                if(new_level){
3511
                    if(new_level<0) new_coeff= qmul*new_level - qadd;
3512
                    else            new_coeff= qmul*new_level + qadd;
3513
                    if(new_coeff >= 2048 || new_coeff <= -2048)
3514
                        continue;
3515
                    //FIXME check for overflow
3516

    
3517
                    if(level){
3518
                        if(level < 63 && level > -63){
3519
                            if(i < last_non_zero)
3520
                                score +=   length[UNI_AC_ENC_INDEX(run, new_level+64)]
3521
                                         - length[UNI_AC_ENC_INDEX(run, level+64)];
3522
                            else
3523
                                score +=   last_length[UNI_AC_ENC_INDEX(run, new_level+64)]
3524
                                         - last_length[UNI_AC_ENC_INDEX(run, level+64)];
3525
                        }
3526
                    }else{
3527
                        assert(FFABS(new_level)==1);
3528

    
3529
                        if(analyze_gradient){
3530
                            int g= d1[ scantable[i] ];
3531
                            if(g && (g^new_level) >= 0)
3532
                                continue;
3533
                        }
3534

    
3535
                        if(i < last_non_zero){
3536
                            int next_i= i + run2 + 1;
3537
                            int next_level= block[ perm_scantable[next_i] ] + 64;
3538

    
3539
                            if(next_level&(~127))
3540
                                next_level= 0;
3541

    
3542
                            if(next_i < last_non_zero)
3543
                                score +=   length[UNI_AC_ENC_INDEX(run, 65)]
3544
                                         + length[UNI_AC_ENC_INDEX(run2, next_level)]
3545
                                         - length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3546
                            else
3547
                                score +=  length[UNI_AC_ENC_INDEX(run, 65)]
3548
                                        + last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3549
                                        - last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3550
                        }else{
3551
                            score += last_length[UNI_AC_ENC_INDEX(run, 65)];
3552
                            if(prev_level){
3553
                                score +=  length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3554
                                        - last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3555
                            }
3556
                        }
3557
                    }
3558
                }else{
3559
                    new_coeff=0;
3560
                    assert(FFABS(level)==1);
3561

    
3562
                    if(i < last_non_zero){
3563
                        int next_i= i + run2 + 1;
3564
                        int next_level= block[ perm_scantable[next_i] ] + 64;
3565

    
3566
                        if(next_level&(~127))
3567
                            next_level= 0;
3568

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

    
3586
                score *= lambda;
3587

    
3588
                unquant_change= new_coeff - old_coeff;
3589
                assert((score < 100*lambda && score > -100*lambda) || lambda==0);
3590

    
3591
                score+= s->dsp.try_8x8basis(rem, weight, basis[j], unquant_change);
3592
                if(score<best_score){
3593
                    best_score= score;
3594
                    best_coeff= i;
3595
                    best_change= change;
3596
                    best_unquant_change= unquant_change;
3597
                }
3598
            }
3599
            if(level){
3600
                prev_level= level + 64;
3601
                if(prev_level&(~127))
3602
                    prev_level= 0;
3603
                prev_run= run;
3604
                run=0;
3605
            }else{
3606
                run++;
3607
            }
3608
        }
3609
#ifdef REFINE_STATS
3610
STOP_TIMER("iterative step")}
3611
#endif
3612

    
3613
        if(best_change){
3614
            int j= perm_scantable[ best_coeff ];
3615

    
3616
            block[j] += best_change;
3617

    
3618
            if(best_coeff > last_non_zero){
3619
                last_non_zero= best_coeff;
3620
                assert(block[j]);
3621
#ifdef REFINE_STATS
3622
after_last++;
3623
#endif
3624
            }else{
3625
#ifdef REFINE_STATS
3626
if(block[j]){
3627
    if(block[j] - best_change){
3628
        if(FFABS(block[j]) > FFABS(block[j] - best_change)){
3629
            raise++;
3630
        }else{
3631
            lower++;
3632
        }
3633
    }else{
3634
        from_zero++;
3635
    }
3636
}else{
3637
    to_zero++;
3638
}
3639
#endif
3640
                for(; last_non_zero>=start_i; last_non_zero--){
3641
                    if(block[perm_scantable[last_non_zero]])
3642
                        break;
3643
                }
3644
            }
3645
#ifdef REFINE_STATS
3646
count++;
3647
if(256*256*256*64 % count == 0){
3648
    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);
3649
}
3650
#endif
3651
            run=0;
3652
            rle_index=0;
3653
            for(i=start_i; i<=last_non_zero; i++){
3654
                int j= perm_scantable[i];
3655
                const int level= block[j];
3656

    
3657
                 if(level){
3658
                     run_tab[rle_index++]=run;
3659
                     run=0;
3660
                 }else{
3661
                     run++;
3662
                 }
3663
            }
3664

    
3665
            s->dsp.add_8x8basis(rem, basis[j], best_unquant_change);
3666
        }else{
3667
            break;
3668
        }
3669
    }
3670
#ifdef REFINE_STATS
3671
if(last_non_zero>0){
3672
STOP_TIMER("iterative search")
3673
}
3674
}
3675
#endif
3676

    
3677
    return last_non_zero;
3678
}
3679

    
3680
int dct_quantize_c(MpegEncContext *s,
3681
                        DCTELEM *block, int n,
3682
                        int qscale, int *overflow)
3683
{
3684
    int i, j, level, last_non_zero, q, start_i;
3685
    const int *qmat;
3686
    const uint8_t *scantable= s->intra_scantable.scantable;
3687
    int bias;
3688
    int max=0;
3689
    unsigned int threshold1, threshold2;
3690

    
3691
    s->dsp.fdct (block);
3692

    
3693
    if(s->dct_error_sum)
3694
        s->denoise_dct(s, block);
3695

    
3696
    if (s->mb_intra) {
3697
        if (!s->h263_aic) {
3698
            if (n < 4)
3699
                q = s->y_dc_scale;
3700
            else
3701
                q = s->c_dc_scale;
3702
            q = q << 3;
3703
        } else
3704
            /* For AIC we skip quant/dequant of INTRADC */
3705
            q = 1 << 3;
3706

    
3707
        /* note: block[0] is assumed to be positive */
3708
        block[0] = (block[0] + (q >> 1)) / q;
3709
        start_i = 1;
3710
        last_non_zero = 0;
3711
        qmat = s->q_intra_matrix[qscale];
3712
        bias= s->intra_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3713
    } else {
3714
        start_i = 0;
3715
        last_non_zero = -1;
3716
        qmat = s->q_inter_matrix[qscale];
3717
        bias= s->inter_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3718
    }
3719
    threshold1= (1<<QMAT_SHIFT) - bias - 1;
3720
    threshold2= (threshold1<<1);
3721
    for(i=63;i>=start_i;i--) {
3722
        j = scantable[i];
3723
        level = block[j] * qmat[j];
3724

    
3725
        if(((unsigned)(level+threshold1))>threshold2){
3726
            last_non_zero = i;
3727
            break;
3728
        }else{
3729
            block[j]=0;
3730
        }
3731
    }
3732
    for(i=start_i; i<=last_non_zero; i++) {
3733
        j = scantable[i];
3734
        level = block[j] * qmat[j];
3735

    
3736
//        if(   bias+level >= (1<<QMAT_SHIFT)
3737
//           || bias-level >= (1<<QMAT_SHIFT)){
3738
        if(((unsigned)(level+threshold1))>threshold2){
3739
            if(level>0){
3740
                level= (bias + level)>>QMAT_SHIFT;
3741
                block[j]= level;
3742
            }else{
3743
                level= (bias - level)>>QMAT_SHIFT;
3744
                block[j]= -level;
3745
            }
3746
            max |=level;
3747
        }else{
3748
            block[j]=0;
3749
        }
3750
    }
3751
    *overflow= s->max_qcoeff < max; //overflow might have happened
3752

    
3753
    /* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */
3754
    if (s->dsp.idct_permutation_type != FF_NO_IDCT_PERM)
3755
        ff_block_permute(block, s->dsp.idct_permutation, scantable, last_non_zero);
3756

    
3757
    return last_non_zero;
3758
}
3759

    
3760
AVCodec h263_encoder = {
3761
    "h263",
3762
    CODEC_TYPE_VIDEO,
3763
    CODEC_ID_H263,
3764
    sizeof(MpegEncContext),
3765
    MPV_encode_init,
3766
    MPV_encode_picture,
3767
    MPV_encode_end,
3768
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3769
    .long_name= NULL_IF_CONFIG_SMALL("H.263 / H.263-1996"),
3770
};
3771

    
3772
AVCodec h263p_encoder = {
3773
    "h263p",
3774
    CODEC_TYPE_VIDEO,
3775
    CODEC_ID_H263P,
3776
    sizeof(MpegEncContext),
3777
    MPV_encode_init,
3778
    MPV_encode_picture,
3779
    MPV_encode_end,
3780
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3781
    .long_name= NULL_IF_CONFIG_SMALL("H.263+ / H.263-1998 / H.263 version 2"),
3782
};
3783

    
3784
AVCodec flv_encoder = {
3785
    "flv",
3786
    CODEC_TYPE_VIDEO,
3787
    CODEC_ID_FLV1,
3788
    sizeof(MpegEncContext),
3789
    MPV_encode_init,
3790
    MPV_encode_picture,
3791
    MPV_encode_end,
3792
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3793
    .long_name= NULL_IF_CONFIG_SMALL("Flash Video (FLV) / Sorenson Spark / Sorenson H.263"),
3794
};
3795

    
3796
AVCodec mpeg4_encoder = {
3797
    "mpeg4",
3798
    CODEC_TYPE_VIDEO,
3799
    CODEC_ID_MPEG4,
3800
    sizeof(MpegEncContext),
3801
    MPV_encode_init,
3802
    MPV_encode_picture,
3803
    MPV_encode_end,
3804
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3805
    .capabilities= CODEC_CAP_DELAY,
3806
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2"),
3807
};
3808

    
3809
AVCodec msmpeg4v1_encoder = {
3810
    "msmpeg4v1",
3811
    CODEC_TYPE_VIDEO,
3812
    CODEC_ID_MSMPEG4V1,
3813
    sizeof(MpegEncContext),
3814
    MPV_encode_init,
3815
    MPV_encode_picture,
3816
    MPV_encode_end,
3817
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3818
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 1"),
3819
};
3820

    
3821
AVCodec msmpeg4v2_encoder = {
3822
    "msmpeg4v2",
3823
    CODEC_TYPE_VIDEO,
3824
    CODEC_ID_MSMPEG4V2,
3825
    sizeof(MpegEncContext),
3826
    MPV_encode_init,
3827
    MPV_encode_picture,
3828
    MPV_encode_end,
3829
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3830
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 2"),
3831
};
3832

    
3833
AVCodec msmpeg4v3_encoder = {
3834
    "msmpeg4",
3835
    CODEC_TYPE_VIDEO,
3836
    CODEC_ID_MSMPEG4V3,
3837
    sizeof(MpegEncContext),
3838
    MPV_encode_init,
3839
    MPV_encode_picture,
3840
    MPV_encode_end,
3841
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3842
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 3"),
3843
};
3844

    
3845
AVCodec wmv1_encoder = {
3846
    "wmv1",
3847
    CODEC_TYPE_VIDEO,
3848
    CODEC_ID_WMV1,
3849
    sizeof(MpegEncContext),
3850
    MPV_encode_init,
3851
    MPV_encode_picture,
3852
    MPV_encode_end,
3853
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3854
    .long_name= NULL_IF_CONFIG_SMALL("Windows Media Video 7"),
3855
};