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ffmpeg / libavcodec / mpegvideo_enc.c @ 72415b2a

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

    
45
//#undef NDEBUG
46
//#include <assert.h>
47

    
48
static int encode_picture(MpegEncContext *s, int picture_number);
49
static int dct_quantize_refine(MpegEncContext *s, DCTELEM *block, int16_t *weight, DCTELEM *orig, int n, int qscale);
50
static int sse_mb(MpegEncContext *s);
51

    
52
/* enable all paranoid tests for rounding, overflows, etc... */
53
//#define PARANOID
54

    
55
//#define DEBUG
56

    
57
static uint8_t default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
58
static uint8_t default_fcode_tab[MAX_MV*2+1];
59

    
60
void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
61
                           const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra)
62
{
63
    int qscale;
64
    int shift=0;
65

    
66
    for(qscale=qmin; qscale<=qmax; qscale++){
67
        int i;
68
        if (dsp->fdct == ff_jpeg_fdct_islow
69
#ifdef FAAN_POSTSCALE
70
            || dsp->fdct == ff_faandct
71
#endif
72
            ) {
73
            for(i=0;i<64;i++) {
74
                const int j= dsp->idct_permutation[i];
75
                /* 16 <= qscale * quant_matrix[i] <= 7905 */
76
                /* 19952             <= ff_aanscales[i] * qscale * quant_matrix[i]               <= 249205026 */
77
                /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1 << 36) / 249205026 */
78
                /* 3444240           >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
79

    
80
                qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) /
81
                                (qscale * quant_matrix[j]));
82
            }
83
        } else if (dsp->fdct == fdct_ifast
84
#ifndef FAAN_POSTSCALE
85
                   || dsp->fdct == ff_faandct
86
#endif
87
                   ) {
88
            for(i=0;i<64;i++) {
89
                const int j= dsp->idct_permutation[i];
90
                /* 16 <= qscale * quant_matrix[i] <= 7905 */
91
                /* 19952             <= ff_aanscales[i] * qscale * quant_matrix[i]               <= 249205026 */
92
                /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
93
                /* 3444240           >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
94

    
95
                qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) /
96
                                (ff_aanscales[i] * qscale * quant_matrix[j]));
97
            }
98
        } else {
99
            for(i=0;i<64;i++) {
100
                const int j= dsp->idct_permutation[i];
101
                /* We can safely suppose that 16 <= quant_matrix[i] <= 255
102
                   So 16           <= qscale * quant_matrix[i]             <= 7905
103
                   so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
104
                   so 32768        >= (1<<19) / (qscale * quant_matrix[i]) >= 67
105
                */
106
                qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / (qscale * quant_matrix[j]));
107
//                qmat  [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
108
                qmat16[qscale][0][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[j]);
109

    
110
                if(qmat16[qscale][0][i]==0 || qmat16[qscale][0][i]==128*256) qmat16[qscale][0][i]=128*256-1;
111
                qmat16[qscale][1][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][0][i]);
112
            }
113
        }
114

    
115
        for(i=intra; i<64; i++){
116
            int64_t max= 8191;
117
            if (dsp->fdct == fdct_ifast
118
#ifndef FAAN_POSTSCALE
119
                   || dsp->fdct == ff_faandct
120
#endif
121
                   ) {
122
                max = (8191LL*ff_aanscales[i]) >> 14;
123
            }
124
            while(((max * qmat[qscale][i]) >> shift) > INT_MAX){
125
                shift++;
126
            }
127
        }
128
    }
129
    if(shift){
130
        av_log(NULL, AV_LOG_INFO, "Warning, QMAT_SHIFT is larger than %d, overflows possible\n", QMAT_SHIFT - shift);
131
    }
132
}
133

    
134
static inline void update_qscale(MpegEncContext *s){
135
    s->qscale= (s->lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
136
    s->qscale= av_clip(s->qscale, s->avctx->qmin, s->avctx->qmax);
137

    
138
    s->lambda2= (s->lambda*s->lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
139
}
140

    
141
void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix){
142
    int i;
143

    
144
    if(matrix){
145
        put_bits(pb, 1, 1);
146
        for(i=0;i<64;i++) {
147
            put_bits(pb, 8, matrix[ ff_zigzag_direct[i] ]);
148
        }
149
    }else
150
        put_bits(pb, 1, 0);
151
}
152

    
153
/**
154
 * init s->current_picture.qscale_table from s->lambda_table
155
 */
156
void ff_init_qscale_tab(MpegEncContext *s){
157
    int8_t * const qscale_table= s->current_picture.qscale_table;
158
    int i;
159

    
160
    for(i=0; i<s->mb_num; i++){
161
        unsigned int lam= s->lambda_table[ s->mb_index2xy[i] ];
162
        int qp= (lam*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
163
        qscale_table[ s->mb_index2xy[i] ]= av_clip(qp, s->avctx->qmin, s->avctx->qmax);
164
    }
165
}
166

    
167
static void copy_picture_attributes(MpegEncContext *s, AVFrame *dst, AVFrame *src){
168
    int i;
169

    
170
    dst->pict_type              = src->pict_type;
171
    dst->quality                = src->quality;
172
    dst->coded_picture_number   = src->coded_picture_number;
173
    dst->display_picture_number = src->display_picture_number;
174
//    dst->reference              = src->reference;
175
    dst->pts                    = src->pts;
176
    dst->interlaced_frame       = src->interlaced_frame;
177
    dst->top_field_first        = src->top_field_first;
178

    
179
    if(s->avctx->me_threshold){
180
        if(!src->motion_val[0])
181
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_val not set!\n");
182
        if(!src->mb_type)
183
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.mb_type not set!\n");
184
        if(!src->ref_index[0])
185
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.ref_index not set!\n");
186
        if(src->motion_subsample_log2 != dst->motion_subsample_log2)
187
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_subsample_log2 doesn't match! (%d!=%d)\n",
188
            src->motion_subsample_log2, dst->motion_subsample_log2);
189

    
190
        memcpy(dst->mb_type, src->mb_type, s->mb_stride * s->mb_height * sizeof(dst->mb_type[0]));
191

    
192
        for(i=0; i<2; i++){
193
            int stride= ((16*s->mb_width )>>src->motion_subsample_log2) + 1;
194
            int height= ((16*s->mb_height)>>src->motion_subsample_log2);
195

    
196
            if(src->motion_val[i] && src->motion_val[i] != dst->motion_val[i]){
197
                memcpy(dst->motion_val[i], src->motion_val[i], 2*stride*height*sizeof(int16_t));
198
            }
199
            if(src->ref_index[i] && src->ref_index[i] != dst->ref_index[i]){
200
                memcpy(dst->ref_index[i], src->ref_index[i], s->mb_stride*4*s->mb_height*sizeof(int8_t));
201
            }
202
        }
203
    }
204
}
205

    
206
static void update_duplicate_context_after_me(MpegEncContext *dst, MpegEncContext *src){
207
#define COPY(a) dst->a= src->a
208
    COPY(pict_type);
209
    COPY(current_picture);
210
    COPY(f_code);
211
    COPY(b_code);
212
    COPY(qscale);
213
    COPY(lambda);
214
    COPY(lambda2);
215
    COPY(picture_in_gop_number);
216
    COPY(gop_picture_number);
217
    COPY(frame_pred_frame_dct); //FIXME don't set in encode_header
218
    COPY(progressive_frame); //FIXME don't set in encode_header
219
    COPY(partitioned_frame); //FIXME don't set in encode_header
220
#undef COPY
221
}
222

    
223
/**
224
 * sets the given MpegEncContext to defaults for encoding.
225
 * the changed fields will not depend upon the prior state of the MpegEncContext.
226
 */
227
static void MPV_encode_defaults(MpegEncContext *s){
228
    int i;
229
    MPV_common_defaults(s);
230

    
231
    for(i=-16; i<16; i++){
232
        default_fcode_tab[i + MAX_MV]= 1;
233
    }
234
    s->me.mv_penalty= default_mv_penalty;
235
    s->fcode_tab= default_fcode_tab;
236
}
237

    
238
/* init video encoder */
239
av_cold int MPV_encode_init(AVCodecContext *avctx)
240
{
241
    MpegEncContext *s = avctx->priv_data;
242
    int i;
243
    int chroma_h_shift, chroma_v_shift;
244

    
245
    MPV_encode_defaults(s);
246

    
247
    switch (avctx->codec_id) {
248
    case CODEC_ID_MPEG2VIDEO:
249
        if(avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P){
250
            av_log(avctx, AV_LOG_ERROR, "only YUV420 and YUV422 are supported\n");
251
            return -1;
252
        }
253
        break;
254
    case CODEC_ID_LJPEG:
255
    case CODEC_ID_MJPEG:
256
        if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P && avctx->pix_fmt != PIX_FMT_RGB32 &&
257
           ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P) || avctx->strict_std_compliance>FF_COMPLIANCE_INOFFICIAL)){
258
            av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n");
259
            return -1;
260
        }
261
        break;
262
    default:
263
        if(avctx->pix_fmt != PIX_FMT_YUV420P){
264
            av_log(avctx, AV_LOG_ERROR, "only YUV420 is supported\n");
265
            return -1;
266
        }
267
    }
268

    
269
    switch (avctx->pix_fmt) {
270
    case PIX_FMT_YUVJ422P:
271
    case PIX_FMT_YUV422P:
272
        s->chroma_format = CHROMA_422;
273
        break;
274
    case PIX_FMT_YUVJ420P:
275
    case PIX_FMT_YUV420P:
276
    default:
277
        s->chroma_format = CHROMA_420;
278
        break;
279
    }
280

    
281
    s->bit_rate = avctx->bit_rate;
282
    s->width = avctx->width;
283
    s->height = avctx->height;
284
    if(avctx->gop_size > 600 && avctx->strict_std_compliance>FF_COMPLIANCE_EXPERIMENTAL){
285
        av_log(avctx, AV_LOG_ERROR, "Warning keyframe interval too large! reducing it ...\n");
286
        avctx->gop_size=600;
287
    }
288
    s->gop_size = avctx->gop_size;
289
    s->avctx = avctx;
290
    s->flags= avctx->flags;
291
    s->flags2= avctx->flags2;
292
    s->max_b_frames= avctx->max_b_frames;
293
    s->codec_id= avctx->codec->id;
294
    s->luma_elim_threshold  = avctx->luma_elim_threshold;
295
    s->chroma_elim_threshold= avctx->chroma_elim_threshold;
296
    s->strict_std_compliance= avctx->strict_std_compliance;
297
    s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
298
    s->quarter_sample= (avctx->flags & CODEC_FLAG_QPEL)!=0;
299
    s->mpeg_quant= avctx->mpeg_quant;
300
    s->rtp_mode= !!avctx->rtp_payload_size;
301
    s->intra_dc_precision= avctx->intra_dc_precision;
302
    s->user_specified_pts = AV_NOPTS_VALUE;
303

    
304
    if (s->gop_size <= 1) {
305
        s->intra_only = 1;
306
        s->gop_size = 12;
307
    } else {
308
        s->intra_only = 0;
309
    }
310

    
311
    s->me_method = avctx->me_method;
312

    
313
    /* Fixed QSCALE */
314
    s->fixed_qscale = !!(avctx->flags & CODEC_FLAG_QSCALE);
315

    
316
    s->adaptive_quant= (   s->avctx->lumi_masking
317
                        || s->avctx->dark_masking
318
                        || s->avctx->temporal_cplx_masking
319
                        || s->avctx->spatial_cplx_masking
320
                        || s->avctx->p_masking
321
                        || s->avctx->border_masking
322
                        || (s->flags&CODEC_FLAG_QP_RD))
323
                       && !s->fixed_qscale;
324

    
325
    s->obmc= !!(s->flags & CODEC_FLAG_OBMC);
326
    s->loop_filter= !!(s->flags & CODEC_FLAG_LOOP_FILTER);
327
    s->alternate_scan= !!(s->flags & CODEC_FLAG_ALT_SCAN);
328
    s->intra_vlc_format= !!(s->flags2 & CODEC_FLAG2_INTRA_VLC);
329
    s->q_scale_type= !!(s->flags2 & CODEC_FLAG2_NON_LINEAR_QUANT);
330

    
331
    if(avctx->rc_max_rate && !avctx->rc_buffer_size){
332
        av_log(avctx, AV_LOG_ERROR, "a vbv buffer size is needed, for encoding with a maximum bitrate\n");
333
        return -1;
334
    }
335

    
336
    if(avctx->rc_min_rate && avctx->rc_max_rate != avctx->rc_min_rate){
337
        av_log(avctx, AV_LOG_INFO, "Warning min_rate > 0 but min_rate != max_rate isn't recommended!\n");
338
    }
339

    
340
    if(avctx->rc_min_rate && avctx->rc_min_rate > avctx->bit_rate){
341
        av_log(avctx, AV_LOG_ERROR, "bitrate below min bitrate\n");
342
        return -1;
343
    }
344

    
345
    if(avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate){
346
        av_log(avctx, AV_LOG_INFO, "bitrate above max bitrate\n");
347
        return -1;
348
    }
349

    
350
    if(avctx->rc_max_rate && avctx->rc_max_rate == avctx->bit_rate && avctx->rc_max_rate != avctx->rc_min_rate){
351
        av_log(avctx, AV_LOG_INFO, "impossible bitrate constraints, this will fail\n");
352
    }
353

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

    
359
    if(avctx->bit_rate*av_q2d(avctx->time_base) > avctx->bit_rate_tolerance){
360
        av_log(avctx, AV_LOG_ERROR, "bitrate tolerance too small for bitrate\n");
361
        return -1;
362
    }
363

    
364
    if(   s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate
365
       && (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO)
366
       && 90000LL * (avctx->rc_buffer_size-1) > s->avctx->rc_max_rate*0xFFFFLL){
367

    
368
        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");
369
    }
370

    
371
    if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4
372
       && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P && s->codec_id != CODEC_ID_FLV1){
373
        av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n");
374
        return -1;
375
    }
376

    
377
    if(s->obmc && s->avctx->mb_decision != FF_MB_DECISION_SIMPLE){
378
        av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with simple mb decision\n");
379
        return -1;
380
    }
381

    
382
    if(s->obmc && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P){
383
        av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with H263(+)\n");
384
        return -1;
385
    }
386

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

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

    
397
    if(s->max_b_frames && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO){
398
        av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n");
399
        return -1;
400
    }
401

    
402
    if ((s->codec_id == CODEC_ID_MPEG4 || s->codec_id == CODEC_ID_H263 ||
403
         s->codec_id == CODEC_ID_H263P) &&
404
        (avctx->sample_aspect_ratio.num > 255 || avctx->sample_aspect_ratio.den > 255)) {
405
        av_log(avctx, AV_LOG_ERROR, "Invalid pixel aspect ratio %i/%i, limit is 255/255\n",
406
               avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den);
407
        return -1;
408
    }
409

    
410
    if((s->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN))
411
       && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG2VIDEO){
412
        av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n");
413
        return -1;
414
    }
415

    
416
    if(s->mpeg_quant && s->codec_id != CODEC_ID_MPEG4){ //FIXME mpeg2 uses that too
417
        av_log(avctx, AV_LOG_ERROR, "mpeg2 style quantization not supported by codec\n");
418
        return -1;
419
    }
420

    
421
    if((s->flags & CODEC_FLAG_CBP_RD) && !avctx->trellis){
422
        av_log(avctx, AV_LOG_ERROR, "CBP RD needs trellis quant\n");
423
        return -1;
424
    }
425

    
426
    if((s->flags & CODEC_FLAG_QP_RD) && s->avctx->mb_decision != FF_MB_DECISION_RD){
427
        av_log(avctx, AV_LOG_ERROR, "QP RD needs mbd=2\n");
428
        return -1;
429
    }
430

    
431
    if(s->avctx->scenechange_threshold < 1000000000 && (s->flags & CODEC_FLAG_CLOSED_GOP)){
432
        av_log(avctx, AV_LOG_ERROR, "closed gop with scene change detection are not supported yet, set threshold to 1000000000\n");
433
        return -1;
434
    }
435

    
436
    if((s->flags2 & CODEC_FLAG2_INTRA_VLC) && s->codec_id != CODEC_ID_MPEG2VIDEO){
437
        av_log(avctx, AV_LOG_ERROR, "intra vlc table not supported by codec\n");
438
        return -1;
439
    }
440

    
441
    if(s->flags & CODEC_FLAG_LOW_DELAY){
442
        if (s->codec_id != CODEC_ID_MPEG2VIDEO){
443
            av_log(avctx, AV_LOG_ERROR, "low delay forcing is only available for mpeg2\n");
444
            return -1;
445
        }
446
        if (s->max_b_frames != 0){
447
            av_log(avctx, AV_LOG_ERROR, "b frames cannot be used with low delay\n");
448
            return -1;
449
        }
450
    }
451

    
452
    if(s->q_scale_type == 1){
453
        if(s->codec_id != CODEC_ID_MPEG2VIDEO){
454
            av_log(avctx, AV_LOG_ERROR, "non linear quant is only available for mpeg2\n");
455
            return -1;
456
        }
457
        if(avctx->qmax > 12){
458
            av_log(avctx, AV_LOG_ERROR, "non linear quant only supports qmax <= 12 currently\n");
459
            return -1;
460
        }
461
    }
462

    
463
    if(s->avctx->thread_count > 1 && s->codec_id != CODEC_ID_MPEG4
464
       && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO
465
       && (s->codec_id != CODEC_ID_H263P || !(s->flags & CODEC_FLAG_H263P_SLICE_STRUCT))){
466
        av_log(avctx, AV_LOG_ERROR, "multi threaded encoding not supported by codec\n");
467
        return -1;
468
    }
469

    
470
    if(s->avctx->thread_count < 1){
471
        av_log(avctx, AV_LOG_ERROR, "automatic thread number detection not supported by codec, patch welcome\n");
472
        return -1;
473
    }
474

    
475
    if(s->avctx->thread_count > 1)
476
        s->rtp_mode= 1;
477

    
478
    if(!avctx->time_base.den || !avctx->time_base.num){
479
        av_log(avctx, AV_LOG_ERROR, "framerate not set\n");
480
        return -1;
481
    }
482

    
483
    i= (INT_MAX/2+128)>>8;
484
    if(avctx->me_threshold >= i){
485
        av_log(avctx, AV_LOG_ERROR, "me_threshold too large, max is %d\n", i - 1);
486
        return -1;
487
    }
488
    if(avctx->mb_threshold >= i){
489
        av_log(avctx, AV_LOG_ERROR, "mb_threshold too large, max is %d\n", i - 1);
490
        return -1;
491
    }
492

    
493
    if(avctx->b_frame_strategy && (avctx->flags&CODEC_FLAG_PASS2)){
494
        av_log(avctx, AV_LOG_INFO, "notice: b_frame_strategy only affects the first pass\n");
495
        avctx->b_frame_strategy = 0;
496
    }
497

    
498
    i= av_gcd(avctx->time_base.den, avctx->time_base.num);
499
    if(i > 1){
500
        av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n");
501
        avctx->time_base.den /= i;
502
        avctx->time_base.num /= i;
503
//        return -1;
504
    }
505

    
506
    if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO || s->codec_id==CODEC_ID_MJPEG){
507
        s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x
508
        s->inter_quant_bias= 0;
509
    }else{
510
        s->intra_quant_bias=0;
511
        s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x
512
    }
513

    
514
    if(avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
515
        s->intra_quant_bias= avctx->intra_quant_bias;
516
    if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)
517
        s->inter_quant_bias= avctx->inter_quant_bias;
518

    
519
    avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift);
520

    
521
    if(avctx->codec_id == CODEC_ID_MPEG4 && s->avctx->time_base.den > (1<<16)-1){
522
        av_log(avctx, AV_LOG_ERROR, "timebase not supported by mpeg 4 standard\n");
523
        return -1;
524
    }
525
    s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1;
526

    
527
    switch(avctx->codec->id) {
528
    case CODEC_ID_MPEG1VIDEO:
529
        s->out_format = FMT_MPEG1;
530
        s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
531
        avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
532
        break;
533
    case CODEC_ID_MPEG2VIDEO:
534
        s->out_format = FMT_MPEG1;
535
        s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
536
        avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
537
        s->rtp_mode= 1;
538
        break;
539
    case CODEC_ID_LJPEG:
540
    case CODEC_ID_MJPEG:
541
        s->out_format = FMT_MJPEG;
542
        s->intra_only = 1; /* force intra only for jpeg */
543
        if(avctx->codec->id == CODEC_ID_LJPEG && avctx->pix_fmt == PIX_FMT_BGRA){
544
            s->mjpeg_vsample[0] = s->mjpeg_hsample[0] =
545
            s->mjpeg_vsample[1] = s->mjpeg_hsample[1] =
546
            s->mjpeg_vsample[2] = s->mjpeg_hsample[2] = 1;
547
        }else{
548
            s->mjpeg_vsample[0] = 2;
549
            s->mjpeg_vsample[1] = 2>>chroma_v_shift;
550
            s->mjpeg_vsample[2] = 2>>chroma_v_shift;
551
            s->mjpeg_hsample[0] = 2;
552
            s->mjpeg_hsample[1] = 2>>chroma_h_shift;
553
            s->mjpeg_hsample[2] = 2>>chroma_h_shift;
554
        }
555
        if (!(CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER)
556
            || ff_mjpeg_encode_init(s) < 0)
557
            return -1;
558
        avctx->delay=0;
559
        s->low_delay=1;
560
        break;
561
    case CODEC_ID_H261:
562
        if (!CONFIG_H261_ENCODER)  return -1;
563
        if (ff_h261_get_picture_format(s->width, s->height) < 0) {
564
            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);
565
            return -1;
566
        }
567
        s->out_format = FMT_H261;
568
        avctx->delay=0;
569
        s->low_delay=1;
570
        break;
571
    case CODEC_ID_H263:
572
        if (!CONFIG_H263_ENCODER)  return -1;
573
        if (ff_match_2uint16(h263_format, FF_ARRAY_ELEMS(h263_format), s->width, s->height) == 7) {
574
            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);
575
            return -1;
576
        }
577
        s->out_format = FMT_H263;
578
        s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
579
        avctx->delay=0;
580
        s->low_delay=1;
581
        break;
582
    case CODEC_ID_H263P:
583
        s->out_format = FMT_H263;
584
        s->h263_plus = 1;
585
        /* Fx */
586
        s->umvplus = (avctx->flags & CODEC_FLAG_H263P_UMV) ? 1:0;
587
        s->h263_aic= (avctx->flags & CODEC_FLAG_AC_PRED) ? 1:0;
588
        s->modified_quant= s->h263_aic;
589
        s->alt_inter_vlc= (avctx->flags & CODEC_FLAG_H263P_AIV) ? 1:0;
590
        s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
591
        s->loop_filter= (avctx->flags & CODEC_FLAG_LOOP_FILTER) ? 1:0;
592
        s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
593
        s->h263_slice_structured= (s->flags & CODEC_FLAG_H263P_SLICE_STRUCT) ? 1:0;
594

    
595
        /* /Fx */
596
        /* These are just to be sure */
597
        avctx->delay=0;
598
        s->low_delay=1;
599
        break;
600
    case CODEC_ID_FLV1:
601
        s->out_format = FMT_H263;
602
        s->h263_flv = 2; /* format = 1; 11-bit codes */
603
        s->unrestricted_mv = 1;
604
        s->rtp_mode=0; /* don't allow GOB */
605
        avctx->delay=0;
606
        s->low_delay=1;
607
        break;
608
    case CODEC_ID_RV10:
609
        s->out_format = FMT_H263;
610
        avctx->delay=0;
611
        s->low_delay=1;
612
        break;
613
    case CODEC_ID_RV20:
614
        s->out_format = FMT_H263;
615
        avctx->delay=0;
616
        s->low_delay=1;
617
        s->modified_quant=1;
618
        s->h263_aic=1;
619
        s->h263_plus=1;
620
        s->loop_filter=1;
621
        s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
622
        break;
623
    case CODEC_ID_MPEG4:
624
        s->out_format = FMT_H263;
625
        s->h263_pred = 1;
626
        s->unrestricted_mv = 1;
627
        s->low_delay= s->max_b_frames ? 0 : 1;
628
        avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
629
        break;
630
    case CODEC_ID_MSMPEG4V1:
631
        s->out_format = FMT_H263;
632
        s->h263_msmpeg4 = 1;
633
        s->h263_pred = 1;
634
        s->unrestricted_mv = 1;
635
        s->msmpeg4_version= 1;
636
        avctx->delay=0;
637
        s->low_delay=1;
638
        break;
639
    case CODEC_ID_MSMPEG4V2:
640
        s->out_format = FMT_H263;
641
        s->h263_msmpeg4 = 1;
642
        s->h263_pred = 1;
643
        s->unrestricted_mv = 1;
644
        s->msmpeg4_version= 2;
645
        avctx->delay=0;
646
        s->low_delay=1;
647
        break;
648
    case CODEC_ID_MSMPEG4V3:
649
        s->out_format = FMT_H263;
650
        s->h263_msmpeg4 = 1;
651
        s->h263_pred = 1;
652
        s->unrestricted_mv = 1;
653
        s->msmpeg4_version= 3;
654
        s->flipflop_rounding=1;
655
        avctx->delay=0;
656
        s->low_delay=1;
657
        break;
658
    case CODEC_ID_WMV1:
659
        s->out_format = FMT_H263;
660
        s->h263_msmpeg4 = 1;
661
        s->h263_pred = 1;
662
        s->unrestricted_mv = 1;
663
        s->msmpeg4_version= 4;
664
        s->flipflop_rounding=1;
665
        avctx->delay=0;
666
        s->low_delay=1;
667
        break;
668
    case CODEC_ID_WMV2:
669
        s->out_format = FMT_H263;
670
        s->h263_msmpeg4 = 1;
671
        s->h263_pred = 1;
672
        s->unrestricted_mv = 1;
673
        s->msmpeg4_version= 5;
674
        s->flipflop_rounding=1;
675
        avctx->delay=0;
676
        s->low_delay=1;
677
        break;
678
    default:
679
        return -1;
680
    }
681

    
682
    avctx->has_b_frames= !s->low_delay;
683

    
684
    s->encoding = 1;
685

    
686
    s->progressive_frame=
687
    s->progressive_sequence= !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN));
688

    
689
    /* init */
690
    if (MPV_common_init(s) < 0)
691
        return -1;
692

    
693
    if(!s->dct_quantize)
694
        s->dct_quantize = dct_quantize_c;
695
    if(!s->denoise_dct)
696
        s->denoise_dct = denoise_dct_c;
697
    s->fast_dct_quantize = s->dct_quantize;
698
    if(avctx->trellis)
699
        s->dct_quantize = dct_quantize_trellis_c;
700

    
701
    if((CONFIG_H263P_ENCODER || CONFIG_RV20_ENCODER) && s->modified_quant)
702
        s->chroma_qscale_table= ff_h263_chroma_qscale_table;
703

    
704
    s->quant_precision=5;
705

    
706
    ff_set_cmp(&s->dsp, s->dsp.ildct_cmp, s->avctx->ildct_cmp);
707
    ff_set_cmp(&s->dsp, s->dsp.frame_skip_cmp, s->avctx->frame_skip_cmp);
708

    
709
    if (CONFIG_H261_ENCODER && s->out_format == FMT_H261)
710
        ff_h261_encode_init(s);
711
    if (CONFIG_H263_ENCODER && s->out_format == FMT_H263)
712
        h263_encode_init(s);
713
    if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version)
714
        ff_msmpeg4_encode_init(s);
715
    if ((CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
716
        && s->out_format == FMT_MPEG1)
717
        ff_mpeg1_encode_init(s);
718

    
719
    /* init q matrix */
720
    for(i=0;i<64;i++) {
721
        int j= s->dsp.idct_permutation[i];
722
        if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){
723
            s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
724
            s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
725
        }else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){
726
            s->intra_matrix[j] =
727
            s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
728
        }else
729
        { /* mpeg1/2 */
730
            s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
731
            s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
732
        }
733
        if(s->avctx->intra_matrix)
734
            s->intra_matrix[j] = s->avctx->intra_matrix[i];
735
        if(s->avctx->inter_matrix)
736
            s->inter_matrix[j] = s->avctx->inter_matrix[i];
737
    }
738

    
739
    /* precompute matrix */
740
    /* for mjpeg, we do include qscale in the matrix */
741
    if (s->out_format != FMT_MJPEG) {
742
        ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
743
                       s->intra_matrix, s->intra_quant_bias, avctx->qmin, 31, 1);
744
        ff_convert_matrix(&s->dsp, s->q_inter_matrix, s->q_inter_matrix16,
745
                       s->inter_matrix, s->inter_quant_bias, avctx->qmin, 31, 0);
746
    }
747

    
748
    if(ff_rate_control_init(s) < 0)
749
        return -1;
750

    
751
    return 0;
752
}
753

    
754
av_cold int MPV_encode_end(AVCodecContext *avctx)
755
{
756
    MpegEncContext *s = avctx->priv_data;
757

    
758
    ff_rate_control_uninit(s);
759

    
760
    MPV_common_end(s);
761
    if ((CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER) && s->out_format == FMT_MJPEG)
762
        ff_mjpeg_encode_close(s);
763

    
764
    av_freep(&avctx->extradata);
765

    
766
    return 0;
767
}
768

    
769
static int get_sae(uint8_t *src, int ref, int stride){
770
    int x,y;
771
    int acc=0;
772

    
773
    for(y=0; y<16; y++){
774
        for(x=0; x<16; x++){
775
            acc+= FFABS(src[x+y*stride] - ref);
776
        }
777
    }
778

    
779
    return acc;
780
}
781

    
782
static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride){
783
    int x, y, w, h;
784
    int acc=0;
785

    
786
    w= s->width &~15;
787
    h= s->height&~15;
788

    
789
    for(y=0; y<h; y+=16){
790
        for(x=0; x<w; x+=16){
791
            int offset= x + y*stride;
792
            int sad = s->dsp.sad[0](NULL, src + offset, ref + offset, stride, 16);
793
            int mean= (s->dsp.pix_sum(src + offset, stride) + 128)>>8;
794
            int sae = get_sae(src + offset, mean, stride);
795

    
796
            acc+= sae + 500 < sad;
797
        }
798
    }
799
    return acc;
800
}
801

    
802

    
803
static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
804
    AVFrame *pic=NULL;
805
    int64_t pts;
806
    int i;
807
    const int encoding_delay= s->max_b_frames;
808
    int direct=1;
809

    
810
    if(pic_arg){
811
        pts= pic_arg->pts;
812
        pic_arg->display_picture_number= s->input_picture_number++;
813

    
814
        if(pts != AV_NOPTS_VALUE){
815
            if(s->user_specified_pts != AV_NOPTS_VALUE){
816
                int64_t time= pts;
817
                int64_t last= s->user_specified_pts;
818

    
819
                if(time <= last){
820
                    av_log(s->avctx, AV_LOG_ERROR, "Error, Invalid timestamp=%"PRId64", last=%"PRId64"\n", pts, s->user_specified_pts);
821
                    return -1;
822
                }
823
            }
824
            s->user_specified_pts= pts;
825
        }else{
826
            if(s->user_specified_pts != AV_NOPTS_VALUE){
827
                s->user_specified_pts=
828
                pts= s->user_specified_pts + 1;
829
                av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%"PRId64")\n", pts);
830
            }else{
831
                pts= pic_arg->display_picture_number;
832
            }
833
        }
834
    }
835

    
836
  if(pic_arg){
837
    if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0;
838
    if(pic_arg->linesize[0] != s->linesize) direct=0;
839
    if(pic_arg->linesize[1] != s->uvlinesize) direct=0;
840
    if(pic_arg->linesize[2] != s->uvlinesize) direct=0;
841

    
842
//    av_log(AV_LOG_DEBUG, "%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize);
843

    
844
    if(direct){
845
        i= ff_find_unused_picture(s, 1);
846

    
847
        pic= (AVFrame*)&s->picture[i];
848
        pic->reference= 3;
849

    
850
        for(i=0; i<4; i++){
851
            pic->data[i]= pic_arg->data[i];
852
            pic->linesize[i]= pic_arg->linesize[i];
853
        }
854
        if(ff_alloc_picture(s, (Picture*)pic, 1) < 0){
855
            return -1;
856
        }
857
    }else{
858
        i= ff_find_unused_picture(s, 0);
859

    
860
        pic= (AVFrame*)&s->picture[i];
861
        pic->reference= 3;
862

    
863
        if(ff_alloc_picture(s, (Picture*)pic, 0) < 0){
864
            return -1;
865
        }
866

    
867
        if(   pic->data[0] + INPLACE_OFFSET == pic_arg->data[0]
868
           && pic->data[1] + INPLACE_OFFSET == pic_arg->data[1]
869
           && pic->data[2] + INPLACE_OFFSET == pic_arg->data[2]){
870
       // empty
871
        }else{
872
            int h_chroma_shift, v_chroma_shift;
873
            avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
874

    
875
            for(i=0; i<3; i++){
876
                int src_stride= pic_arg->linesize[i];
877
                int dst_stride= i ? s->uvlinesize : s->linesize;
878
                int h_shift= i ? h_chroma_shift : 0;
879
                int v_shift= i ? v_chroma_shift : 0;
880
                int w= s->width >>h_shift;
881
                int h= s->height>>v_shift;
882
                uint8_t *src= pic_arg->data[i];
883
                uint8_t *dst= pic->data[i];
884

    
885
                if(!s->avctx->rc_buffer_size)
886
                    dst +=INPLACE_OFFSET;
887

    
888
                if(src_stride==dst_stride)
889
                    memcpy(dst, src, src_stride*h);
890
                else{
891
                    while(h--){
892
                        memcpy(dst, src, w);
893
                        dst += dst_stride;
894
                        src += src_stride;
895
                    }
896
                }
897
            }
898
        }
899
    }
900
    copy_picture_attributes(s, pic, pic_arg);
901
    pic->pts= pts; //we set this here to avoid modifiying pic_arg
902
  }
903

    
904
    /* shift buffer entries */
905
    for(i=1; i<MAX_PICTURE_COUNT /*s->encoding_delay+1*/; i++)
906
        s->input_picture[i-1]= s->input_picture[i];
907

    
908
    s->input_picture[encoding_delay]= (Picture*)pic;
909

    
910
    return 0;
911
}
912

    
913
static int skip_check(MpegEncContext *s, Picture *p, Picture *ref){
914
    int x, y, plane;
915
    int score=0;
916
    int64_t score64=0;
917

    
918
    for(plane=0; plane<3; plane++){
919
        const int stride= p->linesize[plane];
920
        const int bw= plane ? 1 : 2;
921
        for(y=0; y<s->mb_height*bw; y++){
922
            for(x=0; x<s->mb_width*bw; x++){
923
                int off= p->type == FF_BUFFER_TYPE_SHARED ? 0: 16;
924
                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);
925

    
926
                switch(s->avctx->frame_skip_exp){
927
                    case 0: score= FFMAX(score, v); break;
928
                    case 1: score+= FFABS(v);break;
929
                    case 2: score+= v*v;break;
930
                    case 3: score64+= FFABS(v*v*(int64_t)v);break;
931
                    case 4: score64+= v*v*(int64_t)(v*v);break;
932
                }
933
            }
934
        }
935
    }
936

    
937
    if(score) score64= score;
938

    
939
    if(score64 < s->avctx->frame_skip_threshold)
940
        return 1;
941
    if(score64 < ((s->avctx->frame_skip_factor * (int64_t)s->lambda)>>8))
942
        return 1;
943
    return 0;
944
}
945

    
946
static int estimate_best_b_count(MpegEncContext *s){
947
    AVCodec *codec= avcodec_find_encoder(s->avctx->codec_id);
948
    AVCodecContext *c= avcodec_alloc_context();
949
    AVFrame input[FF_MAX_B_FRAMES+2];
950
    const int scale= s->avctx->brd_scale;
951
    int i, j, out_size, p_lambda, b_lambda, lambda2;
952
    int outbuf_size= s->width * s->height; //FIXME
953
    uint8_t *outbuf= av_malloc(outbuf_size);
954
    int64_t best_rd= INT64_MAX;
955
    int best_b_count= -1;
956

    
957
    assert(scale>=0 && scale <=3);
958

    
959
//    emms_c();
960
    p_lambda= s->last_lambda_for[FF_P_TYPE]; //s->next_picture_ptr->quality;
961
    b_lambda= s->last_lambda_for[FF_B_TYPE]; //p_lambda *FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset;
962
    if(!b_lambda) b_lambda= p_lambda; //FIXME we should do this somewhere else
963
    lambda2= (b_lambda*b_lambda + (1<<FF_LAMBDA_SHIFT)/2 ) >> FF_LAMBDA_SHIFT;
964

    
965
    c->width = s->width >> scale;
966
    c->height= s->height>> scale;
967
    c->flags= CODEC_FLAG_QSCALE | CODEC_FLAG_PSNR | CODEC_FLAG_INPUT_PRESERVED /*| CODEC_FLAG_EMU_EDGE*/;
968
    c->flags|= s->avctx->flags & CODEC_FLAG_QPEL;
969
    c->mb_decision= s->avctx->mb_decision;
970
    c->me_cmp= s->avctx->me_cmp;
971
    c->mb_cmp= s->avctx->mb_cmp;
972
    c->me_sub_cmp= s->avctx->me_sub_cmp;
973
    c->pix_fmt = PIX_FMT_YUV420P;
974
    c->time_base= s->avctx->time_base;
975
    c->max_b_frames= s->max_b_frames;
976

    
977
    if (avcodec_open(c, codec) < 0)
978
        return -1;
979

    
980
    for(i=0; i<s->max_b_frames+2; i++){
981
        int ysize= c->width*c->height;
982
        int csize= (c->width/2)*(c->height/2);
983
        Picture pre_input, *pre_input_ptr= i ? s->input_picture[i-1] : s->next_picture_ptr;
984

    
985
        avcodec_get_frame_defaults(&input[i]);
986
        input[i].data[0]= av_malloc(ysize + 2*csize);
987
        input[i].data[1]= input[i].data[0] + ysize;
988
        input[i].data[2]= input[i].data[1] + csize;
989
        input[i].linesize[0]= c->width;
990
        input[i].linesize[1]=
991
        input[i].linesize[2]= c->width/2;
992

    
993
        if(pre_input_ptr && (!i || s->input_picture[i-1])) {
994
            pre_input= *pre_input_ptr;
995

    
996
            if(pre_input.type != FF_BUFFER_TYPE_SHARED && i) {
997
                pre_input.data[0]+=INPLACE_OFFSET;
998
                pre_input.data[1]+=INPLACE_OFFSET;
999
                pre_input.data[2]+=INPLACE_OFFSET;
1000
            }
1001

    
1002
            s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0], pre_input.data[0], pre_input.linesize[0], c->width, c->height);
1003
            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);
1004
            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);
1005
        }
1006
    }
1007

    
1008
    for(j=0; j<s->max_b_frames+1; j++){
1009
        int64_t rd=0;
1010

    
1011
        if(!s->input_picture[j])
1012
            break;
1013

    
1014
        c->error[0]= c->error[1]= c->error[2]= 0;
1015

    
1016
        input[0].pict_type= FF_I_TYPE;
1017
        input[0].quality= 1 * FF_QP2LAMBDA;
1018
        out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[0]);
1019
//        rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT;
1020

    
1021
        for(i=0; i<s->max_b_frames+1; i++){
1022
            int is_p= i % (j+1) == j || i==s->max_b_frames;
1023

    
1024
            input[i+1].pict_type= is_p ? FF_P_TYPE : FF_B_TYPE;
1025
            input[i+1].quality= is_p ? p_lambda : b_lambda;
1026
            out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[i+1]);
1027
            rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1028
        }
1029

    
1030
        /* get the delayed frames */
1031
        while(out_size){
1032
            out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);
1033
            rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1034
        }
1035

    
1036
        rd += c->error[0] + c->error[1] + c->error[2];
1037

    
1038
        if(rd < best_rd){
1039
            best_rd= rd;
1040
            best_b_count= j;
1041
        }
1042
    }
1043

    
1044
    av_freep(&outbuf);
1045
    avcodec_close(c);
1046
    av_freep(&c);
1047

    
1048
    for(i=0; i<s->max_b_frames+2; i++){
1049
        av_freep(&input[i].data[0]);
1050
    }
1051

    
1052
    return best_b_count;
1053
}
1054

    
1055
static int select_input_picture(MpegEncContext *s){
1056
    int i;
1057

    
1058
    for(i=1; i<MAX_PICTURE_COUNT; i++)
1059
        s->reordered_input_picture[i-1]= s->reordered_input_picture[i];
1060
    s->reordered_input_picture[MAX_PICTURE_COUNT-1]= NULL;
1061

    
1062
    /* set next picture type & ordering */
1063
    if(s->reordered_input_picture[0]==NULL && s->input_picture[0]){
1064
        if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture_ptr==NULL || s->intra_only){
1065
            s->reordered_input_picture[0]= s->input_picture[0];
1066
            s->reordered_input_picture[0]->pict_type= FF_I_TYPE;
1067
            s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1068
        }else{
1069
            int b_frames;
1070

    
1071
            if(s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor){
1072
                if(s->picture_in_gop_number < s->gop_size && skip_check(s, s->input_picture[0], s->next_picture_ptr)){
1073
                //FIXME check that te gop check above is +-1 correct
1074
//av_log(NULL, AV_LOG_DEBUG, "skip %p %"PRId64"\n", s->input_picture[0]->data[0], s->input_picture[0]->pts);
1075

    
1076
                    if(s->input_picture[0]->type == FF_BUFFER_TYPE_SHARED){
1077
                        for(i=0; i<4; i++)
1078
                            s->input_picture[0]->data[i]= NULL;
1079
                        s->input_picture[0]->type= 0;
1080
                    }else{
1081
                        assert(   s->input_picture[0]->type==FF_BUFFER_TYPE_USER
1082
                               || s->input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1083

    
1084
                        s->avctx->release_buffer(s->avctx, (AVFrame*)s->input_picture[0]);
1085
                    }
1086

    
1087
                    emms_c();
1088
                    ff_vbv_update(s, 0);
1089

    
1090
                    goto no_output_pic;
1091
                }
1092
            }
1093

    
1094
            if(s->flags&CODEC_FLAG_PASS2){
1095
                for(i=0; i<s->max_b_frames+1; i++){
1096
                    int pict_num= s->input_picture[0]->display_picture_number + i;
1097

    
1098
                    if(pict_num >= s->rc_context.num_entries)
1099
                        break;
1100
                    if(!s->input_picture[i]){
1101
                        s->rc_context.entry[pict_num-1].new_pict_type = FF_P_TYPE;
1102
                        break;
1103
                    }
1104

    
1105
                    s->input_picture[i]->pict_type=
1106
                        s->rc_context.entry[pict_num].new_pict_type;
1107
                }
1108
            }
1109

    
1110
            if(s->avctx->b_frame_strategy==0){
1111
                b_frames= s->max_b_frames;
1112
                while(b_frames && !s->input_picture[b_frames]) b_frames--;
1113
            }else if(s->avctx->b_frame_strategy==1){
1114
                for(i=1; i<s->max_b_frames+1; i++){
1115
                    if(s->input_picture[i] && s->input_picture[i]->b_frame_score==0){
1116
                        s->input_picture[i]->b_frame_score=
1117
                            get_intra_count(s, s->input_picture[i  ]->data[0],
1118
                                               s->input_picture[i-1]->data[0], s->linesize) + 1;
1119
                    }
1120
                }
1121
                for(i=0; i<s->max_b_frames+1; i++){
1122
                    if(s->input_picture[i]==NULL || s->input_picture[i]->b_frame_score - 1 > s->mb_num/s->avctx->b_sensitivity) break;
1123
                }
1124

    
1125
                b_frames= FFMAX(0, i-1);
1126

    
1127
                /* reset scores */
1128
                for(i=0; i<b_frames+1; i++){
1129
                    s->input_picture[i]->b_frame_score=0;
1130
                }
1131
            }else if(s->avctx->b_frame_strategy==2){
1132
                b_frames= estimate_best_b_count(s);
1133
            }else{
1134
                av_log(s->avctx, AV_LOG_ERROR, "illegal b frame strategy\n");
1135
                b_frames=0;
1136
            }
1137

    
1138
            emms_c();
1139
//static int b_count=0;
1140
//b_count+= b_frames;
1141
//av_log(s->avctx, AV_LOG_DEBUG, "b_frames: %d\n", b_count);
1142

    
1143
            for(i= b_frames - 1; i>=0; i--){
1144
                int type= s->input_picture[i]->pict_type;
1145
                if(type && type != FF_B_TYPE)
1146
                    b_frames= i;
1147
            }
1148
            if(s->input_picture[b_frames]->pict_type == FF_B_TYPE && b_frames == s->max_b_frames){
1149
                av_log(s->avctx, AV_LOG_ERROR, "warning, too many b frames in a row\n");
1150
            }
1151

    
1152
            if(s->picture_in_gop_number + b_frames >= s->gop_size){
1153
              if((s->flags2 & CODEC_FLAG2_STRICT_GOP) && s->gop_size > s->picture_in_gop_number){
1154
                    b_frames= s->gop_size - s->picture_in_gop_number - 1;
1155
              }else{
1156
                if(s->flags & CODEC_FLAG_CLOSED_GOP)
1157
                    b_frames=0;
1158
                s->input_picture[b_frames]->pict_type= FF_I_TYPE;
1159
              }
1160
            }
1161

    
1162
            if(   (s->flags & CODEC_FLAG_CLOSED_GOP)
1163
               && b_frames
1164
               && s->input_picture[b_frames]->pict_type== FF_I_TYPE)
1165
                b_frames--;
1166

    
1167
            s->reordered_input_picture[0]= s->input_picture[b_frames];
1168
            if(s->reordered_input_picture[0]->pict_type != FF_I_TYPE)
1169
                s->reordered_input_picture[0]->pict_type= FF_P_TYPE;
1170
            s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1171
            for(i=0; i<b_frames; i++){
1172
                s->reordered_input_picture[i+1]= s->input_picture[i];
1173
                s->reordered_input_picture[i+1]->pict_type= FF_B_TYPE;
1174
                s->reordered_input_picture[i+1]->coded_picture_number= s->coded_picture_number++;
1175
            }
1176
        }
1177
    }
1178
no_output_pic:
1179
    if(s->reordered_input_picture[0]){
1180
        s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=FF_B_TYPE ? 3 : 0;
1181

    
1182
        ff_copy_picture(&s->new_picture, s->reordered_input_picture[0]);
1183

    
1184
        if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_SHARED || s->avctx->rc_buffer_size){
1185
            // input is a shared pix, so we can't modifiy it -> alloc a new one & ensure that the shared one is reuseable
1186

    
1187
            int i= ff_find_unused_picture(s, 0);
1188
            Picture *pic= &s->picture[i];
1189

    
1190
            pic->reference              = s->reordered_input_picture[0]->reference;
1191
            if(ff_alloc_picture(s, pic, 0) < 0){
1192
                return -1;
1193
            }
1194

    
1195
            /* mark us unused / free shared pic */
1196
            if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_INTERNAL)
1197
                s->avctx->release_buffer(s->avctx, (AVFrame*)s->reordered_input_picture[0]);
1198
            for(i=0; i<4; i++)
1199
                s->reordered_input_picture[0]->data[i]= NULL;
1200
            s->reordered_input_picture[0]->type= 0;
1201

    
1202
            copy_picture_attributes(s, (AVFrame*)pic, (AVFrame*)s->reordered_input_picture[0]);
1203

    
1204
            s->current_picture_ptr= pic;
1205
        }else{
1206
            // input is not a shared pix -> reuse buffer for current_pix
1207

    
1208
            assert(   s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
1209
                   || s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1210

    
1211
            s->current_picture_ptr= s->reordered_input_picture[0];
1212
            for(i=0; i<4; i++){
1213
                s->new_picture.data[i]+= INPLACE_OFFSET;
1214
            }
1215
        }
1216
        ff_copy_picture(&s->current_picture, s->current_picture_ptr);
1217

    
1218
        s->picture_number= s->new_picture.display_picture_number;
1219
//printf("dpn:%d\n", s->picture_number);
1220
    }else{
1221
       memset(&s->new_picture, 0, sizeof(Picture));
1222
    }
1223
    return 0;
1224
}
1225

    
1226
int MPV_encode_picture(AVCodecContext *avctx,
1227
                       unsigned char *buf, int buf_size, void *data)
1228
{
1229
    MpegEncContext *s = avctx->priv_data;
1230
    AVFrame *pic_arg = data;
1231
    int i, stuffing_count;
1232

    
1233
    for(i=0; i<avctx->thread_count; i++){
1234
        int start_y= s->thread_context[i]->start_mb_y;
1235
        int   end_y= s->thread_context[i]->  end_mb_y;
1236
        int h= s->mb_height;
1237
        uint8_t *start= buf + (size_t)(((int64_t) buf_size)*start_y/h);
1238
        uint8_t *end  = buf + (size_t)(((int64_t) buf_size)*  end_y/h);
1239

    
1240
        init_put_bits(&s->thread_context[i]->pb, start, end - start);
1241
    }
1242

    
1243
    s->picture_in_gop_number++;
1244

    
1245
    if(load_input_picture(s, pic_arg) < 0)
1246
        return -1;
1247

    
1248
    if(select_input_picture(s) < 0){
1249
        return -1;
1250
    }
1251

    
1252
    /* output? */
1253
    if(s->new_picture.data[0]){
1254
        s->pict_type= s->new_picture.pict_type;
1255
//emms_c();
1256
//printf("qs:%f %f %d\n", s->new_picture.quality, s->current_picture.quality, s->qscale);
1257
        MPV_frame_start(s, avctx);
1258
vbv_retry:
1259
        if (encode_picture(s, s->picture_number) < 0)
1260
            return -1;
1261

    
1262
        avctx->header_bits = s->header_bits;
1263
        avctx->mv_bits     = s->mv_bits;
1264
        avctx->misc_bits   = s->misc_bits;
1265
        avctx->i_tex_bits  = s->i_tex_bits;
1266
        avctx->p_tex_bits  = s->p_tex_bits;
1267
        avctx->i_count     = s->i_count;
1268
        avctx->p_count     = s->mb_num - s->i_count - s->skip_count; //FIXME f/b_count in avctx
1269
        avctx->skip_count  = s->skip_count;
1270

    
1271
        MPV_frame_end(s);
1272

    
1273
        if (CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG)
1274
            ff_mjpeg_encode_picture_trailer(s);
1275

    
1276
        if(avctx->rc_buffer_size){
1277
            RateControlContext *rcc= &s->rc_context;
1278
            int max_size= rcc->buffer_index * avctx->rc_max_available_vbv_use;
1279

    
1280
            if(put_bits_count(&s->pb) > max_size && s->lambda < s->avctx->lmax){
1281
                s->next_lambda= FFMAX(s->lambda+1, s->lambda*(s->qscale+1) / s->qscale);
1282
                if(s->adaptive_quant){
1283
                    int i;
1284
                    for(i=0; i<s->mb_height*s->mb_stride; i++)
1285
                        s->lambda_table[i]= FFMAX(s->lambda_table[i]+1, s->lambda_table[i]*(s->qscale+1) / s->qscale);
1286
                }
1287
                s->mb_skipped = 0;        //done in MPV_frame_start()
1288
                if(s->pict_type==FF_P_TYPE){ //done in encode_picture() so we must undo it
1289
                    if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
1290
                        s->no_rounding ^= 1;
1291
                }
1292
                if(s->pict_type!=FF_B_TYPE){
1293
                    s->time_base= s->last_time_base;
1294
                    s->last_non_b_time= s->time - s->pp_time;
1295
                }
1296
//                av_log(NULL, AV_LOG_ERROR, "R:%d ", s->next_lambda);
1297
                for(i=0; i<avctx->thread_count; i++){
1298
                    PutBitContext *pb= &s->thread_context[i]->pb;
1299
                    init_put_bits(pb, pb->buf, pb->buf_end - pb->buf);
1300
                }
1301
                goto vbv_retry;
1302
            }
1303

    
1304
            assert(s->avctx->rc_max_rate);
1305
        }
1306

    
1307
        if(s->flags&CODEC_FLAG_PASS1)
1308
            ff_write_pass1_stats(s);
1309

    
1310
        for(i=0; i<4; i++){
1311
            s->current_picture_ptr->error[i]= s->current_picture.error[i];
1312
            avctx->error[i] += s->current_picture_ptr->error[i];
1313
        }
1314

    
1315
        if(s->flags&CODEC_FLAG_PASS1)
1316
            assert(avctx->header_bits + avctx->mv_bits + avctx->misc_bits + avctx->i_tex_bits + avctx->p_tex_bits == put_bits_count(&s->pb));
1317
        flush_put_bits(&s->pb);
1318
        s->frame_bits  = put_bits_count(&s->pb);
1319

    
1320
        stuffing_count= ff_vbv_update(s, s->frame_bits);
1321
        if(stuffing_count){
1322
            if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < stuffing_count + 50){
1323
                av_log(s->avctx, AV_LOG_ERROR, "stuffing too large\n");
1324
                return -1;
1325
            }
1326

    
1327
            switch(s->codec_id){
1328
            case CODEC_ID_MPEG1VIDEO:
1329
            case CODEC_ID_MPEG2VIDEO:
1330
                while(stuffing_count--){
1331
                    put_bits(&s->pb, 8, 0);
1332
                }
1333
            break;
1334
            case CODEC_ID_MPEG4:
1335
                put_bits(&s->pb, 16, 0);
1336
                put_bits(&s->pb, 16, 0x1C3);
1337
                stuffing_count -= 4;
1338
                while(stuffing_count--){
1339
                    put_bits(&s->pb, 8, 0xFF);
1340
                }
1341
            break;
1342
            default:
1343
                av_log(s->avctx, AV_LOG_ERROR, "vbv buffer overflow\n");
1344
            }
1345
            flush_put_bits(&s->pb);
1346
            s->frame_bits  = put_bits_count(&s->pb);
1347
        }
1348

    
1349
        /* update mpeg1/2 vbv_delay for CBR */
1350
        if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && s->out_format == FMT_MPEG1
1351
           && 90000LL * (avctx->rc_buffer_size-1) <= s->avctx->rc_max_rate*0xFFFFLL){
1352
            int vbv_delay, min_delay;
1353
            double inbits = s->avctx->rc_max_rate*av_q2d(s->avctx->time_base);
1354
            int    minbits= s->frame_bits - 8*(s->vbv_delay_ptr - s->pb.buf - 1);
1355
            double bits   = s->rc_context.buffer_index + minbits - inbits;
1356

    
1357
            if(bits<0)
1358
                av_log(s->avctx, AV_LOG_ERROR, "Internal error, negative bits\n");
1359

    
1360
            assert(s->repeat_first_field==0);
1361

    
1362
            vbv_delay=     bits * 90000                               / s->avctx->rc_max_rate;
1363
            min_delay= (minbits * 90000LL + s->avctx->rc_max_rate - 1)/ s->avctx->rc_max_rate;
1364

    
1365
            vbv_delay= FFMAX(vbv_delay, min_delay);
1366

    
1367
            assert(vbv_delay < 0xFFFF);
1368

    
1369
            s->vbv_delay_ptr[0] &= 0xF8;
1370
            s->vbv_delay_ptr[0] |= vbv_delay>>13;
1371
            s->vbv_delay_ptr[1]  = vbv_delay>>5;
1372
            s->vbv_delay_ptr[2] &= 0x07;
1373
            s->vbv_delay_ptr[2] |= vbv_delay<<3;
1374
        }
1375
        s->total_bits += s->frame_bits;
1376
        avctx->frame_bits  = s->frame_bits;
1377
    }else{
1378
        assert((put_bits_ptr(&s->pb) == s->pb.buf));
1379
        s->frame_bits=0;
1380
    }
1381
    assert((s->frame_bits&7)==0);
1382

    
1383
    return s->frame_bits/8;
1384
}
1385

    
1386
static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold)
1387
{
1388
    static const char tab[64]=
1389
        {3,2,2,1,1,1,1,1,
1390
         1,1,1,1,1,1,1,1,
1391
         1,1,1,1,1,1,1,1,
1392
         0,0,0,0,0,0,0,0,
1393
         0,0,0,0,0,0,0,0,
1394
         0,0,0,0,0,0,0,0,
1395
         0,0,0,0,0,0,0,0,
1396
         0,0,0,0,0,0,0,0};
1397
    int score=0;
1398
    int run=0;
1399
    int i;
1400
    DCTELEM *block= s->block[n];
1401
    const int last_index= s->block_last_index[n];
1402
    int skip_dc;
1403

    
1404
    if(threshold<0){
1405
        skip_dc=0;
1406
        threshold= -threshold;
1407
    }else
1408
        skip_dc=1;
1409

    
1410
    /* Are all we could set to zero already zero? */
1411
    if(last_index<=skip_dc - 1) return;
1412

    
1413
    for(i=0; i<=last_index; i++){
1414
        const int j = s->intra_scantable.permutated[i];
1415
        const int level = FFABS(block[j]);
1416
        if(level==1){
1417
            if(skip_dc && i==0) continue;
1418
            score+= tab[run];
1419
            run=0;
1420
        }else if(level>1){
1421
            return;
1422
        }else{
1423
            run++;
1424
        }
1425
    }
1426
    if(score >= threshold) return;
1427
    for(i=skip_dc; i<=last_index; i++){
1428
        const int j = s->intra_scantable.permutated[i];
1429
        block[j]=0;
1430
    }
1431
    if(block[0]) s->block_last_index[n]= 0;
1432
    else         s->block_last_index[n]= -1;
1433
}
1434

    
1435
static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1436
{
1437
    int i;
1438
    const int maxlevel= s->max_qcoeff;
1439
    const int minlevel= s->min_qcoeff;
1440
    int overflow=0;
1441

    
1442
    if(s->mb_intra){
1443
        i=1; //skip clipping of intra dc
1444
    }else
1445
        i=0;
1446

    
1447
    for(;i<=last_index; i++){
1448
        const int j= s->intra_scantable.permutated[i];
1449
        int level = block[j];
1450

    
1451
        if     (level>maxlevel){
1452
            level=maxlevel;
1453
            overflow++;
1454
        }else if(level<minlevel){
1455
            level=minlevel;
1456
            overflow++;
1457
        }
1458

    
1459
        block[j]= level;
1460
    }
1461

    
1462
    if(overflow && s->avctx->mb_decision == FF_MB_DECISION_SIMPLE)
1463
        av_log(s->avctx, AV_LOG_INFO, "warning, clipping %d dct coefficients to %d..%d\n", overflow, minlevel, maxlevel);
1464
}
1465

    
1466
static void get_visual_weight(int16_t *weight, uint8_t *ptr, int stride){
1467
    int x, y;
1468
//FIXME optimize
1469
    for(y=0; y<8; y++){
1470
        for(x=0; x<8; x++){
1471
            int x2, y2;
1472
            int sum=0;
1473
            int sqr=0;
1474
            int count=0;
1475

    
1476
            for(y2= FFMAX(y-1, 0); y2 < FFMIN(8, y+2); y2++){
1477
                for(x2= FFMAX(x-1, 0); x2 < FFMIN(8, x+2); x2++){
1478
                    int v= ptr[x2 + y2*stride];
1479
                    sum += v;
1480
                    sqr += v*v;
1481
                    count++;
1482
                }
1483
            }
1484
            weight[x + 8*y]= (36*ff_sqrt(count*sqr - sum*sum)) / count;
1485
        }
1486
    }
1487
}
1488

    
1489
static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count)
1490
{
1491
    int16_t weight[8][64];
1492
    DCTELEM orig[8][64];
1493
    const int mb_x= s->mb_x;
1494
    const int mb_y= s->mb_y;
1495
    int i;
1496
    int skip_dct[8];
1497
    int dct_offset   = s->linesize*8; //default for progressive frames
1498
    uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1499
    int wrap_y, wrap_c;
1500

    
1501
    for(i=0; i<mb_block_count; i++) skip_dct[i]=s->skipdct;
1502

    
1503
    if(s->adaptive_quant){
1504
        const int last_qp= s->qscale;
1505
        const int mb_xy= mb_x + mb_y*s->mb_stride;
1506

    
1507
        s->lambda= s->lambda_table[mb_xy];
1508
        update_qscale(s);
1509

    
1510
        if(!(s->flags&CODEC_FLAG_QP_RD)){
1511
            s->qscale= s->current_picture_ptr->qscale_table[mb_xy];
1512
            s->dquant= s->qscale - last_qp;
1513

    
1514
            if(s->out_format==FMT_H263){
1515
                s->dquant= av_clip(s->dquant, -2, 2);
1516

    
1517
                if(s->codec_id==CODEC_ID_MPEG4){
1518
                    if(!s->mb_intra){
1519
                        if(s->pict_type == FF_B_TYPE){
1520
                            if(s->dquant&1 || s->mv_dir&MV_DIRECT)
1521
                                s->dquant= 0;
1522
                        }
1523
                        if(s->mv_type==MV_TYPE_8X8)
1524
                            s->dquant=0;
1525
                    }
1526
                }
1527
            }
1528
        }
1529
        ff_set_qscale(s, last_qp + s->dquant);
1530
    }else if(s->flags&CODEC_FLAG_QP_RD)
1531
        ff_set_qscale(s, s->qscale + s->dquant);
1532

    
1533
    wrap_y = s->linesize;
1534
    wrap_c = s->uvlinesize;
1535
    ptr_y = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
1536
    ptr_cb = s->new_picture.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1537
    ptr_cr = s->new_picture.data[2] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1538

    
1539
    if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
1540
        uint8_t *ebuf= s->edge_emu_buffer + 32;
1541
        ff_emulated_edge_mc(ebuf            , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width   , s->height);
1542
        ptr_y= ebuf;
1543
        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);
1544
        ptr_cb= ebuf+18*wrap_y;
1545
        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);
1546
        ptr_cr= ebuf+18*wrap_y+8;
1547
    }
1548

    
1549
    if (s->mb_intra) {
1550
        if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1551
            int progressive_score, interlaced_score;
1552

    
1553
            s->interlaced_dct=0;
1554
            progressive_score= s->dsp.ildct_cmp[4](s, ptr_y           , NULL, wrap_y, 8)
1555
                              +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y*8, NULL, wrap_y, 8) - 400;
1556

    
1557
            if(progressive_score > 0){
1558
                interlaced_score = s->dsp.ildct_cmp[4](s, ptr_y           , NULL, wrap_y*2, 8)
1559
                                  +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y  , NULL, wrap_y*2, 8);
1560
                if(progressive_score > interlaced_score){
1561
                    s->interlaced_dct=1;
1562

    
1563
                    dct_offset= wrap_y;
1564
                    wrap_y<<=1;
1565
                    if (s->chroma_format == CHROMA_422)
1566
                        wrap_c<<=1;
1567
                }
1568
            }
1569
        }
1570

    
1571
        s->dsp.get_pixels(s->block[0], ptr_y                 , wrap_y);
1572
        s->dsp.get_pixels(s->block[1], ptr_y              + 8, wrap_y);
1573
        s->dsp.get_pixels(s->block[2], ptr_y + dct_offset    , wrap_y);
1574
        s->dsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y);
1575

    
1576
        if(s->flags&CODEC_FLAG_GRAY){
1577
            skip_dct[4]= 1;
1578
            skip_dct[5]= 1;
1579
        }else{
1580
            s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c);
1581
            s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c);
1582
            if(!s->chroma_y_shift){ /* 422 */
1583
                s->dsp.get_pixels(s->block[6], ptr_cb + (dct_offset>>1), wrap_c);
1584
                s->dsp.get_pixels(s->block[7], ptr_cr + (dct_offset>>1), wrap_c);
1585
            }
1586
        }
1587
    }else{
1588
        op_pixels_func (*op_pix)[4];
1589
        qpel_mc_func (*op_qpix)[16];
1590
        uint8_t *dest_y, *dest_cb, *dest_cr;
1591

    
1592
        dest_y  = s->dest[0];
1593
        dest_cb = s->dest[1];
1594
        dest_cr = s->dest[2];
1595

    
1596
        if ((!s->no_rounding) || s->pict_type==FF_B_TYPE){
1597
            op_pix = s->dsp.put_pixels_tab;
1598
            op_qpix= s->dsp.put_qpel_pixels_tab;
1599
        }else{
1600
            op_pix = s->dsp.put_no_rnd_pixels_tab;
1601
            op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab;
1602
        }
1603

    
1604
        if (s->mv_dir & MV_DIR_FORWARD) {
1605
            MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix);
1606
            op_pix = s->dsp.avg_pixels_tab;
1607
            op_qpix= s->dsp.avg_qpel_pixels_tab;
1608
        }
1609
        if (s->mv_dir & MV_DIR_BACKWARD) {
1610
            MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix);
1611
        }
1612

    
1613
        if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1614
            int progressive_score, interlaced_score;
1615

    
1616
            s->interlaced_dct=0;
1617
            progressive_score= s->dsp.ildct_cmp[0](s, dest_y           , ptr_y           , wrap_y, 8)
1618
                              +s->dsp.ildct_cmp[0](s, dest_y + wrap_y*8, ptr_y + wrap_y*8, wrap_y, 8) - 400;
1619

    
1620
            if(s->avctx->ildct_cmp == FF_CMP_VSSE) progressive_score -= 400;
1621

    
1622
            if(progressive_score>0){
1623
                interlaced_score = s->dsp.ildct_cmp[0](s, dest_y           , ptr_y           , wrap_y*2, 8)
1624
                                  +s->dsp.ildct_cmp[0](s, dest_y + wrap_y  , ptr_y + wrap_y  , wrap_y*2, 8);
1625

    
1626
                if(progressive_score > interlaced_score){
1627
                    s->interlaced_dct=1;
1628

    
1629
                    dct_offset= wrap_y;
1630
                    wrap_y<<=1;
1631
                    if (s->chroma_format == CHROMA_422)
1632
                        wrap_c<<=1;
1633
                }
1634
            }
1635
        }
1636

    
1637
        s->dsp.diff_pixels(s->block[0], ptr_y                 , dest_y                 , wrap_y);
1638
        s->dsp.diff_pixels(s->block[1], ptr_y              + 8, dest_y              + 8, wrap_y);
1639
        s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset    , dest_y + dct_offset    , wrap_y);
1640
        s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y);
1641

    
1642
        if(s->flags&CODEC_FLAG_GRAY){
1643
            skip_dct[4]= 1;
1644
            skip_dct[5]= 1;
1645
        }else{
1646
            s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
1647
            s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
1648
            if(!s->chroma_y_shift){ /* 422 */
1649
                s->dsp.diff_pixels(s->block[6], ptr_cb + (dct_offset>>1), dest_cb + (dct_offset>>1), wrap_c);
1650
                s->dsp.diff_pixels(s->block[7], ptr_cr + (dct_offset>>1), dest_cr + (dct_offset>>1), wrap_c);
1651
            }
1652
        }
1653
        /* pre quantization */
1654
        if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){
1655
            //FIXME optimize
1656
            if(s->dsp.sad[1](NULL, ptr_y               , dest_y               , wrap_y, 8) < 20*s->qscale) skip_dct[0]= 1;
1657
            if(s->dsp.sad[1](NULL, ptr_y            + 8, dest_y            + 8, wrap_y, 8) < 20*s->qscale) skip_dct[1]= 1;
1658
            if(s->dsp.sad[1](NULL, ptr_y +dct_offset   , dest_y +dct_offset   , wrap_y, 8) < 20*s->qscale) skip_dct[2]= 1;
1659
            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;
1660
            if(s->dsp.sad[1](NULL, ptr_cb              , dest_cb              , wrap_c, 8) < 20*s->qscale) skip_dct[4]= 1;
1661
            if(s->dsp.sad[1](NULL, ptr_cr              , dest_cr              , wrap_c, 8) < 20*s->qscale) skip_dct[5]= 1;
1662
            if(!s->chroma_y_shift){ /* 422 */
1663
                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;
1664
                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;
1665
            }
1666
        }
1667
    }
1668

    
1669
    if(s->avctx->quantizer_noise_shaping){
1670
        if(!skip_dct[0]) get_visual_weight(weight[0], ptr_y                 , wrap_y);
1671
        if(!skip_dct[1]) get_visual_weight(weight[1], ptr_y              + 8, wrap_y);
1672
        if(!skip_dct[2]) get_visual_weight(weight[2], ptr_y + dct_offset    , wrap_y);
1673
        if(!skip_dct[3]) get_visual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y);
1674
        if(!skip_dct[4]) get_visual_weight(weight[4], ptr_cb                , wrap_c);
1675
        if(!skip_dct[5]) get_visual_weight(weight[5], ptr_cr                , wrap_c);
1676
        if(!s->chroma_y_shift){ /* 422 */
1677
            if(!skip_dct[6]) get_visual_weight(weight[6], ptr_cb + (dct_offset>>1), wrap_c);
1678
            if(!skip_dct[7]) get_visual_weight(weight[7], ptr_cr + (dct_offset>>1), wrap_c);
1679
        }
1680
        memcpy(orig[0], s->block[0], sizeof(DCTELEM)*64*mb_block_count);
1681
    }
1682

    
1683
    /* DCT & quantize */
1684
    assert(s->out_format!=FMT_MJPEG || s->qscale==8);
1685
    {
1686
        for(i=0;i<mb_block_count;i++) {
1687
            if(!skip_dct[i]){
1688
                int overflow;
1689
                s->block_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow);
1690
            // FIXME we could decide to change to quantizer instead of clipping
1691
            // JS: I don't think that would be a good idea it could lower quality instead
1692
            //     of improve it. Just INTRADC clipping deserves changes in quantizer
1693
                if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1694
            }else
1695
                s->block_last_index[i]= -1;
1696
        }
1697
        if(s->avctx->quantizer_noise_shaping){
1698
            for(i=0;i<mb_block_count;i++) {
1699
                if(!skip_dct[i]){
1700
                    s->block_last_index[i] = dct_quantize_refine(s, s->block[i], weight[i], orig[i], i, s->qscale);
1701
                }
1702
            }
1703
        }
1704

    
1705
        if(s->luma_elim_threshold && !s->mb_intra)
1706
            for(i=0; i<4; i++)
1707
                dct_single_coeff_elimination(s, i, s->luma_elim_threshold);
1708
        if(s->chroma_elim_threshold && !s->mb_intra)
1709
            for(i=4; i<mb_block_count; i++)
1710
                dct_single_coeff_elimination(s, i, s->chroma_elim_threshold);
1711

    
1712
        if(s->flags & CODEC_FLAG_CBP_RD){
1713
            for(i=0;i<mb_block_count;i++) {
1714
                if(s->block_last_index[i] == -1)
1715
                    s->coded_score[i]= INT_MAX/256;
1716
            }
1717
        }
1718
    }
1719

    
1720
    if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
1721
        s->block_last_index[4]=
1722
        s->block_last_index[5]= 0;
1723
        s->block[4][0]=
1724
        s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale;
1725
    }
1726

    
1727
    //non c quantize code returns incorrect block_last_index FIXME
1728
    if(s->alternate_scan && s->dct_quantize != dct_quantize_c){
1729
        for(i=0; i<mb_block_count; i++){
1730
            int j;
1731
            if(s->block_last_index[i]>0){
1732
                for(j=63; j>0; j--){
1733
                    if(s->block[i][ s->intra_scantable.permutated[j] ]) break;
1734
                }
1735
                s->block_last_index[i]= j;
1736
            }
1737
        }
1738
    }
1739

    
1740
    /* huffman encode */
1741
    switch(s->codec_id){ //FIXME funct ptr could be slightly faster
1742
    case CODEC_ID_MPEG1VIDEO:
1743
    case CODEC_ID_MPEG2VIDEO:
1744
        if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
1745
            mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1746
        break;
1747
    case CODEC_ID_MPEG4:
1748
        if (CONFIG_MPEG4_ENCODER)
1749
            mpeg4_encode_mb(s, s->block, motion_x, motion_y);
1750
        break;
1751
    case CODEC_ID_MSMPEG4V2:
1752
    case CODEC_ID_MSMPEG4V3:
1753
    case CODEC_ID_WMV1:
1754
        if (CONFIG_MSMPEG4_ENCODER)
1755
            msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1756
        break;
1757
    case CODEC_ID_WMV2:
1758
        if (CONFIG_WMV2_ENCODER)
1759
            ff_wmv2_encode_mb(s, s->block, motion_x, motion_y);
1760
        break;
1761
    case CODEC_ID_H261:
1762
        if (CONFIG_H261_ENCODER)
1763
            ff_h261_encode_mb(s, s->block, motion_x, motion_y);
1764
        break;
1765
    case CODEC_ID_H263:
1766
    case CODEC_ID_H263P:
1767
    case CODEC_ID_FLV1:
1768
    case CODEC_ID_RV10:
1769
    case CODEC_ID_RV20:
1770
        if (CONFIG_H263_ENCODER)
1771
            h263_encode_mb(s, s->block, motion_x, motion_y);
1772
        break;
1773
    case CODEC_ID_MJPEG:
1774
        if (CONFIG_MJPEG_ENCODER)
1775
            ff_mjpeg_encode_mb(s, s->block);
1776
        break;
1777
    default:
1778
        assert(0);
1779
    }
1780
}
1781

    
1782
static av_always_inline void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
1783
{
1784
    if (s->chroma_format == CHROMA_420) encode_mb_internal(s, motion_x, motion_y,  8, 6);
1785
    else                                encode_mb_internal(s, motion_x, motion_y, 16, 8);
1786
}
1787

    
1788
static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1789
    int i;
1790

    
1791
    memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1792

    
1793
    /* mpeg1 */
1794
    d->mb_skip_run= s->mb_skip_run;
1795
    for(i=0; i<3; i++)
1796
        d->last_dc[i]= s->last_dc[i];
1797

    
1798
    /* statistics */
1799
    d->mv_bits= s->mv_bits;
1800
    d->i_tex_bits= s->i_tex_bits;
1801
    d->p_tex_bits= s->p_tex_bits;
1802
    d->i_count= s->i_count;
1803
    d->f_count= s->f_count;
1804
    d->b_count= s->b_count;
1805
    d->skip_count= s->skip_count;
1806
    d->misc_bits= s->misc_bits;
1807
    d->last_bits= 0;
1808

    
1809
    d->mb_skipped= 0;
1810
    d->qscale= s->qscale;
1811
    d->dquant= s->dquant;
1812

    
1813
    d->esc3_level_length= s->esc3_level_length;
1814
}
1815

    
1816
static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1817
    int i;
1818

    
1819
    memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
1820
    memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1821

    
1822
    /* mpeg1 */
1823
    d->mb_skip_run= s->mb_skip_run;
1824
    for(i=0; i<3; i++)
1825
        d->last_dc[i]= s->last_dc[i];
1826

    
1827
    /* statistics */
1828
    d->mv_bits= s->mv_bits;
1829
    d->i_tex_bits= s->i_tex_bits;
1830
    d->p_tex_bits= s->p_tex_bits;
1831
    d->i_count= s->i_count;
1832
    d->f_count= s->f_count;
1833
    d->b_count= s->b_count;
1834
    d->skip_count= s->skip_count;
1835
    d->misc_bits= s->misc_bits;
1836

    
1837
    d->mb_intra= s->mb_intra;
1838
    d->mb_skipped= s->mb_skipped;
1839
    d->mv_type= s->mv_type;
1840
    d->mv_dir= s->mv_dir;
1841
    d->pb= s->pb;
1842
    if(s->data_partitioning){
1843
        d->pb2= s->pb2;
1844
        d->tex_pb= s->tex_pb;
1845
    }
1846
    d->block= s->block;
1847
    for(i=0; i<8; i++)
1848
        d->block_last_index[i]= s->block_last_index[i];
1849
    d->interlaced_dct= s->interlaced_dct;
1850
    d->qscale= s->qscale;
1851

    
1852
    d->esc3_level_length= s->esc3_level_length;
1853
}
1854

    
1855
static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type,
1856
                           PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
1857
                           int *dmin, int *next_block, int motion_x, int motion_y)
1858
{
1859
    int score;
1860
    uint8_t *dest_backup[3];
1861

    
1862
    copy_context_before_encode(s, backup, type);
1863

    
1864
    s->block= s->blocks[*next_block];
1865
    s->pb= pb[*next_block];
1866
    if(s->data_partitioning){
1867
        s->pb2   = pb2   [*next_block];
1868
        s->tex_pb= tex_pb[*next_block];
1869
    }
1870

    
1871
    if(*next_block){
1872
        memcpy(dest_backup, s->dest, sizeof(s->dest));
1873
        s->dest[0] = s->rd_scratchpad;
1874
        s->dest[1] = s->rd_scratchpad + 16*s->linesize;
1875
        s->dest[2] = s->rd_scratchpad + 16*s->linesize + 8;
1876
        assert(s->linesize >= 32); //FIXME
1877
    }
1878

    
1879
    encode_mb(s, motion_x, motion_y);
1880

    
1881
    score= put_bits_count(&s->pb);
1882
    if(s->data_partitioning){
1883
        score+= put_bits_count(&s->pb2);
1884
        score+= put_bits_count(&s->tex_pb);
1885
    }
1886

    
1887
    if(s->avctx->mb_decision == FF_MB_DECISION_RD){
1888
        MPV_decode_mb(s, s->block);
1889

    
1890
        score *= s->lambda2;
1891
        score += sse_mb(s) << FF_LAMBDA_SHIFT;
1892
    }
1893

    
1894
    if(*next_block){
1895
        memcpy(s->dest, dest_backup, sizeof(s->dest));
1896
    }
1897

    
1898
    if(score<*dmin){
1899
        *dmin= score;
1900
        *next_block^=1;
1901

    
1902
        copy_context_after_encode(best, s, type);
1903
    }
1904
}
1905

    
1906
static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){
1907
    uint32_t *sq = ff_squareTbl + 256;
1908
    int acc=0;
1909
    int x,y;
1910

    
1911
    if(w==16 && h==16)
1912
        return s->dsp.sse[0](NULL, src1, src2, stride, 16);
1913
    else if(w==8 && h==8)
1914
        return s->dsp.sse[1](NULL, src1, src2, stride, 8);
1915

    
1916
    for(y=0; y<h; y++){
1917
        for(x=0; x<w; x++){
1918
            acc+= sq[src1[x + y*stride] - src2[x + y*stride]];
1919
        }
1920
    }
1921

    
1922
    assert(acc>=0);
1923

    
1924
    return acc;
1925
}
1926

    
1927
static int sse_mb(MpegEncContext *s){
1928
    int w= 16;
1929
    int h= 16;
1930

    
1931
    if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
1932
    if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
1933

    
1934
    if(w==16 && h==16)
1935
      if(s->avctx->mb_cmp == FF_CMP_NSSE){
1936
        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)
1937
               +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)
1938
               +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);
1939
      }else{
1940
        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)
1941
               +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)
1942
               +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);
1943
      }
1944
    else
1945
        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)
1946
               +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)
1947
               +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);
1948
}
1949

    
1950
static int pre_estimate_motion_thread(AVCodecContext *c, void *arg){
1951
    MpegEncContext *s= *(void**)arg;
1952

    
1953

    
1954
    s->me.pre_pass=1;
1955
    s->me.dia_size= s->avctx->pre_dia_size;
1956
    s->first_slice_line=1;
1957
    for(s->mb_y= s->end_mb_y-1; s->mb_y >= s->start_mb_y; s->mb_y--) {
1958
        for(s->mb_x=s->mb_width-1; s->mb_x >=0 ;s->mb_x--) {
1959
            ff_pre_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1960
        }
1961
        s->first_slice_line=0;
1962
    }
1963

    
1964
    s->me.pre_pass=0;
1965

    
1966
    return 0;
1967
}
1968

    
1969
static int estimate_motion_thread(AVCodecContext *c, void *arg){
1970
    MpegEncContext *s= *(void**)arg;
1971

    
1972
    ff_check_alignment();
1973

    
1974
    s->me.dia_size= s->avctx->dia_size;
1975
    s->first_slice_line=1;
1976
    for(s->mb_y= s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
1977
        s->mb_x=0; //for block init below
1978
        ff_init_block_index(s);
1979
        for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {
1980
            s->block_index[0]+=2;
1981
            s->block_index[1]+=2;
1982
            s->block_index[2]+=2;
1983
            s->block_index[3]+=2;
1984

    
1985
            /* compute motion vector & mb_type and store in context */
1986
            if(s->pict_type==FF_B_TYPE)
1987
                ff_estimate_b_frame_motion(s, s->mb_x, s->mb_y);
1988
            else
1989
                ff_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1990
        }
1991
        s->first_slice_line=0;
1992
    }
1993
    return 0;
1994
}
1995

    
1996
static int mb_var_thread(AVCodecContext *c, void *arg){
1997
    MpegEncContext *s= *(void**)arg;
1998
    int mb_x, mb_y;
1999

    
2000
    ff_check_alignment();
2001

    
2002
    for(mb_y=s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2003
        for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2004
            int xx = mb_x * 16;
2005
            int yy = mb_y * 16;
2006
            uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
2007
            int varc;
2008
            int sum = s->dsp.pix_sum(pix, s->linesize);
2009

    
2010
            varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
2011

    
2012
            s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
2013
            s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
2014
            s->me.mb_var_sum_temp    += varc;
2015
        }
2016
    }
2017
    return 0;
2018
}
2019

    
2020
static void write_slice_end(MpegEncContext *s){
2021
    if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4){
2022
        if(s->partitioned_frame){
2023
            ff_mpeg4_merge_partitions(s);
2024
        }
2025

    
2026
        ff_mpeg4_stuffing(&s->pb);
2027
    }else if(CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG){
2028
        ff_mjpeg_encode_stuffing(&s->pb);
2029
    }
2030

    
2031
    align_put_bits(&s->pb);
2032
    flush_put_bits(&s->pb);
2033

    
2034
    if((s->flags&CODEC_FLAG_PASS1) && !s->partitioned_frame)
2035
        s->misc_bits+= get_bits_diff(s);
2036
}
2037

    
2038
static int encode_thread(AVCodecContext *c, void *arg){
2039
    MpegEncContext *s= *(void**)arg;
2040
    int mb_x, mb_y, pdif = 0;
2041
    int chr_h= 16>>s->chroma_y_shift;
2042
    int i, j;
2043
    MpegEncContext best_s, backup_s;
2044
    uint8_t bit_buf[2][MAX_MB_BYTES];
2045
    uint8_t bit_buf2[2][MAX_MB_BYTES];
2046
    uint8_t bit_buf_tex[2][MAX_MB_BYTES];
2047
    PutBitContext pb[2], pb2[2], tex_pb[2];
2048
//printf("%d->%d\n", s->resync_mb_y, s->end_mb_y);
2049

    
2050
    ff_check_alignment();
2051

    
2052
    for(i=0; i<2; i++){
2053
        init_put_bits(&pb    [i], bit_buf    [i], MAX_MB_BYTES);
2054
        init_put_bits(&pb2   [i], bit_buf2   [i], MAX_MB_BYTES);
2055
        init_put_bits(&tex_pb[i], bit_buf_tex[i], MAX_MB_BYTES);
2056
    }
2057

    
2058
    s->last_bits= put_bits_count(&s->pb);
2059
    s->mv_bits=0;
2060
    s->misc_bits=0;
2061
    s->i_tex_bits=0;
2062
    s->p_tex_bits=0;
2063
    s->i_count=0;
2064
    s->f_count=0;
2065
    s->b_count=0;
2066
    s->skip_count=0;
2067

    
2068
    for(i=0; i<3; i++){
2069
        /* init last dc values */
2070
        /* note: quant matrix value (8) is implied here */
2071
        s->last_dc[i] = 128 << s->intra_dc_precision;
2072

    
2073
        s->current_picture.error[i] = 0;
2074
    }
2075
    s->mb_skip_run = 0;
2076
    memset(s->last_mv, 0, sizeof(s->last_mv));
2077

    
2078
    s->last_mv_dir = 0;
2079

    
2080
    switch(s->codec_id){
2081
    case CODEC_ID_H263:
2082
    case CODEC_ID_H263P:
2083
    case CODEC_ID_FLV1:
2084
        if (CONFIG_H263_ENCODER)
2085
            s->gob_index = ff_h263_get_gob_height(s);
2086
        break;
2087
    case CODEC_ID_MPEG4:
2088
        if(CONFIG_MPEG4_ENCODER && s->partitioned_frame)
2089
            ff_mpeg4_init_partitions(s);
2090
        break;
2091
    }
2092

    
2093
    s->resync_mb_x=0;
2094
    s->resync_mb_y=0;
2095
    s->first_slice_line = 1;
2096
    s->ptr_lastgob = s->pb.buf;
2097
    for(mb_y= s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2098
//    printf("row %d at %X\n", s->mb_y, (int)s);
2099
        s->mb_x=0;
2100
        s->mb_y= mb_y;
2101

    
2102
        ff_set_qscale(s, s->qscale);
2103
        ff_init_block_index(s);
2104

    
2105
        for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2106
            int xy= mb_y*s->mb_stride + mb_x; // removed const, H261 needs to adjust this
2107
            int mb_type= s->mb_type[xy];
2108
//            int d;
2109
            int dmin= INT_MAX;
2110
            int dir;
2111

    
2112
            if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < MAX_MB_BYTES){
2113
                av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2114
                return -1;
2115
            }
2116
            if(s->data_partitioning){
2117
                if(   s->pb2   .buf_end - s->pb2   .buf - (put_bits_count(&s->    pb2)>>3) < MAX_MB_BYTES
2118
                   || s->tex_pb.buf_end - s->tex_pb.buf - (put_bits_count(&s->tex_pb )>>3) < MAX_MB_BYTES){
2119
                    av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2120
                    return -1;
2121
                }
2122
            }
2123

    
2124
            s->mb_x = mb_x;
2125
            s->mb_y = mb_y;  // moved into loop, can get changed by H.261
2126
            ff_update_block_index(s);
2127

    
2128
            if(CONFIG_H261_ENCODER && s->codec_id == CODEC_ID_H261){
2129
                ff_h261_reorder_mb_index(s);
2130
                xy= s->mb_y*s->mb_stride + s->mb_x;
2131
                mb_type= s->mb_type[xy];
2132
            }
2133

    
2134
            /* write gob / video packet header  */
2135
            if(s->rtp_mode){
2136
                int current_packet_size, is_gob_start;
2137

    
2138
                current_packet_size= ((put_bits_count(&s->pb)+7)>>3) - (s->ptr_lastgob - s->pb.buf);
2139

    
2140
                is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0;
2141

    
2142
                if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1;
2143

    
2144
                switch(s->codec_id){
2145
                case CODEC_ID_H263:
2146
                case CODEC_ID_H263P:
2147
                    if(!s->h263_slice_structured)
2148
                        if(s->mb_x || s->mb_y%s->gob_index) is_gob_start=0;
2149
                    break;
2150
                case CODEC_ID_MPEG2VIDEO:
2151
                    if(s->mb_x==0 && s->mb_y!=0) is_gob_start=1;
2152
                case CODEC_ID_MPEG1VIDEO:
2153
                    if(s->mb_skip_run) is_gob_start=0;
2154
                    break;
2155
                }
2156

    
2157
                if(is_gob_start){
2158
                    if(s->start_mb_y != mb_y || mb_x!=0){
2159
                        write_slice_end(s);
2160

    
2161
                        if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){
2162
                            ff_mpeg4_init_partitions(s);
2163
                        }
2164
                    }
2165

    
2166
                    assert((put_bits_count(&s->pb)&7) == 0);
2167
                    current_packet_size= put_bits_ptr(&s->pb) - s->ptr_lastgob;
2168

    
2169
                    if(s->avctx->error_rate && s->resync_mb_x + s->resync_mb_y > 0){
2170
                        int r= put_bits_count(&s->pb)/8 + s->picture_number + 16 + s->mb_x + s->mb_y;
2171
                        int d= 100 / s->avctx->error_rate;
2172
                        if(r % d == 0){
2173
                            current_packet_size=0;
2174
#ifndef ALT_BITSTREAM_WRITER
2175
                            s->pb.buf_ptr= s->ptr_lastgob;
2176
#endif
2177
                            assert(put_bits_ptr(&s->pb) == s->ptr_lastgob);
2178
                        }
2179
                    }
2180

    
2181
                    if (s->avctx->rtp_callback){
2182
                        int number_mb = (mb_y - s->resync_mb_y)*s->mb_width + mb_x - s->resync_mb_x;
2183
                        s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, current_packet_size, number_mb);
2184
                    }
2185

    
2186
                    switch(s->codec_id){
2187
                    case CODEC_ID_MPEG4:
2188
                        if (CONFIG_MPEG4_ENCODER) {
2189
                            ff_mpeg4_encode_video_packet_header(s);
2190
                            ff_mpeg4_clean_buffers(s);
2191
                        }
2192
                    break;
2193
                    case CODEC_ID_MPEG1VIDEO:
2194
                    case CODEC_ID_MPEG2VIDEO:
2195
                        if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) {
2196
                            ff_mpeg1_encode_slice_header(s);
2197
                            ff_mpeg1_clean_buffers(s);
2198
                        }
2199
                    break;
2200
                    case CODEC_ID_H263:
2201
                    case CODEC_ID_H263P:
2202
                        if (CONFIG_H263_ENCODER)
2203
                            h263_encode_gob_header(s, mb_y);
2204
                    break;
2205
                    }
2206

    
2207
                    if(s->flags&CODEC_FLAG_PASS1){
2208
                        int bits= put_bits_count(&s->pb);
2209
                        s->misc_bits+= bits - s->last_bits;
2210
                        s->last_bits= bits;
2211
                    }
2212

    
2213
                    s->ptr_lastgob += current_packet_size;
2214
                    s->first_slice_line=1;
2215
                    s->resync_mb_x=mb_x;
2216
                    s->resync_mb_y=mb_y;
2217
                }
2218
            }
2219

    
2220
            if(  (s->resync_mb_x   == s->mb_x)
2221
               && s->resync_mb_y+1 == s->mb_y){
2222
                s->first_slice_line=0;
2223
            }
2224

    
2225
            s->mb_skipped=0;
2226
            s->dquant=0; //only for QP_RD
2227

    
2228
            if(mb_type & (mb_type-1) || (s->flags & CODEC_FLAG_QP_RD)){ // more than 1 MB type possible or CODEC_FLAG_QP_RD
2229
                int next_block=0;
2230
                int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
2231

    
2232
                copy_context_before_encode(&backup_s, s, -1);
2233
                backup_s.pb= s->pb;
2234
                best_s.data_partitioning= s->data_partitioning;
2235
                best_s.partitioned_frame= s->partitioned_frame;
2236
                if(s->data_partitioning){
2237
                    backup_s.pb2= s->pb2;
2238
                    backup_s.tex_pb= s->tex_pb;
2239
                }
2240

    
2241
                if(mb_type&CANDIDATE_MB_TYPE_INTER){
2242
                    s->mv_dir = MV_DIR_FORWARD;
2243
                    s->mv_type = MV_TYPE_16X16;
2244
                    s->mb_intra= 0;
2245
                    s->mv[0][0][0] = s->p_mv_table[xy][0];
2246
                    s->mv[0][0][1] = s->p_mv_table[xy][1];
2247
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER, pb, pb2, tex_pb,
2248
                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2249
                }
2250
                if(mb_type&CANDIDATE_MB_TYPE_INTER_I){
2251
                    s->mv_dir = MV_DIR_FORWARD;
2252
                    s->mv_type = MV_TYPE_FIELD;
2253
                    s->mb_intra= 0;
2254
                    for(i=0; i<2; i++){
2255
                        j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2256
                        s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2257
                        s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2258
                    }
2259
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER_I, pb, pb2, tex_pb,
2260
                                 &dmin, &next_block, 0, 0);
2261
                }
2262
                if(mb_type&CANDIDATE_MB_TYPE_SKIPPED){
2263
                    s->mv_dir = MV_DIR_FORWARD;
2264
                    s->mv_type = MV_TYPE_16X16;
2265
                    s->mb_intra= 0;
2266
                    s->mv[0][0][0] = 0;
2267
                    s->mv[0][0][1] = 0;
2268
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_SKIPPED, pb, pb2, tex_pb,
2269
                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2270
                }
2271
                if(mb_type&CANDIDATE_MB_TYPE_INTER4V){
2272
                    s->mv_dir = MV_DIR_FORWARD;
2273
                    s->mv_type = MV_TYPE_8X8;
2274
                    s->mb_intra= 0;
2275
                    for(i=0; i<4; i++){
2276
                        s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2277
                        s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2278
                    }
2279
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER4V, pb, pb2, tex_pb,
2280
                                 &dmin, &next_block, 0, 0);
2281
                }
2282
                if(mb_type&CANDIDATE_MB_TYPE_FORWARD){
2283
                    s->mv_dir = MV_DIR_FORWARD;
2284
                    s->mv_type = MV_TYPE_16X16;
2285
                    s->mb_intra= 0;
2286
                    s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2287
                    s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2288
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD, pb, pb2, tex_pb,
2289
                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2290
                }
2291
                if(mb_type&CANDIDATE_MB_TYPE_BACKWARD){
2292
                    s->mv_dir = MV_DIR_BACKWARD;
2293
                    s->mv_type = MV_TYPE_16X16;
2294
                    s->mb_intra= 0;
2295
                    s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2296
                    s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2297
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD, pb, pb2, tex_pb,
2298
                                 &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
2299
                }
2300
                if(mb_type&CANDIDATE_MB_TYPE_BIDIR){
2301
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2302
                    s->mv_type = MV_TYPE_16X16;
2303
                    s->mb_intra= 0;
2304
                    s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2305
                    s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2306
                    s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2307
                    s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2308
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb,
2309
                                 &dmin, &next_block, 0, 0);
2310
                }
2311
                if(mb_type&CANDIDATE_MB_TYPE_FORWARD_I){
2312
                    s->mv_dir = MV_DIR_FORWARD;
2313
                    s->mv_type = MV_TYPE_FIELD;
2314
                    s->mb_intra= 0;
2315
                    for(i=0; i<2; i++){
2316
                        j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2317
                        s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2318
                        s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2319
                    }
2320
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD_I, pb, pb2, tex_pb,
2321
                                 &dmin, &next_block, 0, 0);
2322
                }
2323
                if(mb_type&CANDIDATE_MB_TYPE_BACKWARD_I){
2324
                    s->mv_dir = MV_DIR_BACKWARD;
2325
                    s->mv_type = MV_TYPE_FIELD;
2326
                    s->mb_intra= 0;
2327
                    for(i=0; i<2; i++){
2328
                        j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2329
                        s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2330
                        s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2331
                    }
2332
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD_I, pb, pb2, tex_pb,
2333
                                 &dmin, &next_block, 0, 0);
2334
                }
2335
                if(mb_type&CANDIDATE_MB_TYPE_BIDIR_I){
2336
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2337
                    s->mv_type = MV_TYPE_FIELD;
2338
                    s->mb_intra= 0;
2339
                    for(dir=0; dir<2; dir++){
2340
                        for(i=0; i<2; i++){
2341
                            j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2342
                            s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2343
                            s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2344
                        }
2345
                    }
2346
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR_I, pb, pb2, tex_pb,
2347
                                 &dmin, &next_block, 0, 0);
2348
                }
2349
                if(mb_type&CANDIDATE_MB_TYPE_INTRA){
2350
                    s->mv_dir = 0;
2351
                    s->mv_type = MV_TYPE_16X16;
2352
                    s->mb_intra= 1;
2353
                    s->mv[0][0][0] = 0;
2354
                    s->mv[0][0][1] = 0;
2355
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTRA, pb, pb2, tex_pb,
2356
                                 &dmin, &next_block, 0, 0);
2357
                    if(s->h263_pred || s->h263_aic){
2358
                        if(best_s.mb_intra)
2359
                            s->mbintra_table[mb_x + mb_y*s->mb_stride]=1;
2360
                        else
2361
                            ff_clean_intra_table_entries(s); //old mode?
2362
                    }
2363
                }
2364

    
2365
                if((s->flags & CODEC_FLAG_QP_RD) && dmin < INT_MAX){
2366
                    if(best_s.mv_type==MV_TYPE_16X16){ //FIXME move 4mv after QPRD
2367
                        const int last_qp= backup_s.qscale;
2368
                        int qpi, qp, dc[6];
2369
                        DCTELEM ac[6][16];
2370
                        const int mvdir= (best_s.mv_dir&MV_DIR_BACKWARD) ? 1 : 0;
2371
                        static const int dquant_tab[4]={-1,1,-2,2};
2372

    
2373
                        assert(backup_s.dquant == 0);
2374

    
2375
                        //FIXME intra
2376
                        s->mv_dir= best_s.mv_dir;
2377
                        s->mv_type = MV_TYPE_16X16;
2378
                        s->mb_intra= best_s.mb_intra;
2379
                        s->mv[0][0][0] = best_s.mv[0][0][0];
2380
                        s->mv[0][0][1] = best_s.mv[0][0][1];
2381
                        s->mv[1][0][0] = best_s.mv[1][0][0];
2382
                        s->mv[1][0][1] = best_s.mv[1][0][1];
2383

    
2384
                        qpi = s->pict_type == FF_B_TYPE ? 2 : 0;
2385
                        for(; qpi<4; qpi++){
2386
                            int dquant= dquant_tab[qpi];
2387
                            qp= last_qp + dquant;
2388
                            if(qp < s->avctx->qmin || qp > s->avctx->qmax)
2389
                                continue;
2390
                            backup_s.dquant= dquant;
2391
                            if(s->mb_intra && s->dc_val[0]){
2392
                                for(i=0; i<6; i++){
2393
                                    dc[i]= s->dc_val[0][ s->block_index[i] ];
2394
                                    memcpy(ac[i], s->ac_val[0][s->block_index[i]], sizeof(DCTELEM)*16);
2395
                                }
2396
                            }
2397

    
2398
                            encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2399
                                         &dmin, &next_block, s->mv[mvdir][0][0], s->mv[mvdir][0][1]);
2400
                            if(best_s.qscale != qp){
2401
                                if(s->mb_intra && s->dc_val[0]){
2402
                                    for(i=0; i<6; i++){
2403
                                        s->dc_val[0][ s->block_index[i] ]= dc[i];
2404
                                        memcpy(s->ac_val[0][s->block_index[i]], ac[i], sizeof(DCTELEM)*16);
2405
                                    }
2406
                                }
2407
                            }
2408
                        }
2409
                    }
2410
                }
2411
                if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT){
2412
                    int mx= s->b_direct_mv_table[xy][0];
2413
                    int my= s->b_direct_mv_table[xy][1];
2414

    
2415
                    backup_s.dquant = 0;
2416
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2417
                    s->mb_intra= 0;
2418
                    ff_mpeg4_set_direct_mv(s, mx, my);
2419
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2420
                                 &dmin, &next_block, mx, my);
2421
                }
2422
                if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT0){
2423
                    backup_s.dquant = 0;
2424
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2425
                    s->mb_intra= 0;
2426
                    ff_mpeg4_set_direct_mv(s, 0, 0);
2427
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2428
                                 &dmin, &next_block, 0, 0);
2429
                }
2430
                if(!best_s.mb_intra && s->flags2&CODEC_FLAG2_SKIP_RD){
2431
                    int coded=0;
2432
                    for(i=0; i<6; i++)
2433
                        coded |= s->block_last_index[i];
2434
                    if(coded){
2435
                        int mx,my;
2436
                        memcpy(s->mv, best_s.mv, sizeof(s->mv));
2437
                        if(CONFIG_MPEG4_ENCODER && best_s.mv_dir & MV_DIRECT){
2438
                            mx=my=0; //FIXME find the one we actually used
2439
                            ff_mpeg4_set_direct_mv(s, mx, my);
2440
                        }else if(best_s.mv_dir&MV_DIR_BACKWARD){
2441
                            mx= s->mv[1][0][0];
2442
                            my= s->mv[1][0][1];
2443
                        }else{
2444
                            mx= s->mv[0][0][0];
2445
                            my= s->mv[0][0][1];
2446
                        }
2447

    
2448
                        s->mv_dir= best_s.mv_dir;
2449
                        s->mv_type = best_s.mv_type;
2450
                        s->mb_intra= 0;
2451
/*                        s->mv[0][0][0] = best_s.mv[0][0][0];
2452
                        s->mv[0][0][1] = best_s.mv[0][0][1];
2453
                        s->mv[1][0][0] = best_s.mv[1][0][0];
2454
                        s->mv[1][0][1] = best_s.mv[1][0][1];*/
2455
                        backup_s.dquant= 0;
2456
                        s->skipdct=1;
2457
                        encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2458
                                        &dmin, &next_block, mx, my);
2459
                        s->skipdct=0;
2460
                    }
2461
                }
2462

    
2463
                s->current_picture.qscale_table[xy]= best_s.qscale;
2464

    
2465
                copy_context_after_encode(s, &best_s, -1);
2466

    
2467
                pb_bits_count= put_bits_count(&s->pb);
2468
                flush_put_bits(&s->pb);
2469
                ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
2470
                s->pb= backup_s.pb;
2471

    
2472
                if(s->data_partitioning){
2473
                    pb2_bits_count= put_bits_count(&s->pb2);
2474
                    flush_put_bits(&s->pb2);
2475
                    ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
2476
                    s->pb2= backup_s.pb2;
2477

    
2478
                    tex_pb_bits_count= put_bits_count(&s->tex_pb);
2479
                    flush_put_bits(&s->tex_pb);
2480
                    ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
2481
                    s->tex_pb= backup_s.tex_pb;
2482
                }
2483
                s->last_bits= put_bits_count(&s->pb);
2484

    
2485
                if (CONFIG_H263_ENCODER &&
2486
                    s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
2487
                    ff_h263_update_motion_val(s);
2488

    
2489
                if(next_block==0){ //FIXME 16 vs linesize16
2490
                    s->dsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad                     , s->linesize  ,16);
2491
                    s->dsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize    , s->uvlinesize, 8);
2492
                    s->dsp.put_pixels_tab[1][0](s->dest[2], s->rd_scratchpad + 16*s->linesize + 8, s->uvlinesize, 8);
2493
                }
2494

    
2495
                if(s->avctx->mb_decision == FF_MB_DECISION_BITS)
2496
                    MPV_decode_mb(s, s->block);
2497
            } else {
2498
                int motion_x = 0, motion_y = 0;
2499
                s->mv_type=MV_TYPE_16X16;
2500
                // only one MB-Type possible
2501

    
2502
                switch(mb_type){
2503
                case CANDIDATE_MB_TYPE_INTRA:
2504
                    s->mv_dir = 0;
2505
                    s->mb_intra= 1;
2506
                    motion_x= s->mv[0][0][0] = 0;
2507
                    motion_y= s->mv[0][0][1] = 0;
2508
                    break;
2509
                case CANDIDATE_MB_TYPE_INTER:
2510
                    s->mv_dir = MV_DIR_FORWARD;
2511
                    s->mb_intra= 0;
2512
                    motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
2513
                    motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
2514
                    break;
2515
                case CANDIDATE_MB_TYPE_INTER_I:
2516
                    s->mv_dir = MV_DIR_FORWARD;
2517
                    s->mv_type = MV_TYPE_FIELD;
2518
                    s->mb_intra= 0;
2519
                    for(i=0; i<2; i++){
2520
                        j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2521
                        s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2522
                        s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2523
                    }
2524
                    break;
2525
                case CANDIDATE_MB_TYPE_INTER4V:
2526
                    s->mv_dir = MV_DIR_FORWARD;
2527
                    s->mv_type = MV_TYPE_8X8;
2528
                    s->mb_intra= 0;
2529
                    for(i=0; i<4; i++){
2530
                        s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2531
                        s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2532
                    }
2533
                    break;
2534
                case CANDIDATE_MB_TYPE_DIRECT:
2535
                    if (CONFIG_MPEG4_ENCODER) {
2536
                        s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2537
                        s->mb_intra= 0;
2538
                        motion_x=s->b_direct_mv_table[xy][0];
2539
                        motion_y=s->b_direct_mv_table[xy][1];
2540
                        ff_mpeg4_set_direct_mv(s, motion_x, motion_y);
2541
                    }
2542
                    break;
2543
                case CANDIDATE_MB_TYPE_DIRECT0:
2544
                    if (CONFIG_MPEG4_ENCODER) {
2545
                        s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2546
                        s->mb_intra= 0;
2547
                        ff_mpeg4_set_direct_mv(s, 0, 0);
2548
                    }
2549
                    break;
2550
                case CANDIDATE_MB_TYPE_BIDIR:
2551
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2552
                    s->mb_intra= 0;
2553
                    s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2554
                    s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2555
                    s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2556
                    s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2557
                    break;
2558
                case CANDIDATE_MB_TYPE_BACKWARD:
2559
                    s->mv_dir = MV_DIR_BACKWARD;
2560
                    s->mb_intra= 0;
2561
                    motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2562
                    motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2563
                    break;
2564
                case CANDIDATE_MB_TYPE_FORWARD:
2565
                    s->mv_dir = MV_DIR_FORWARD;
2566
                    s->mb_intra= 0;
2567
                    motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2568
                    motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2569
//                    printf(" %d %d ", motion_x, motion_y);
2570
                    break;
2571
                case CANDIDATE_MB_TYPE_FORWARD_I:
2572
                    s->mv_dir = MV_DIR_FORWARD;
2573
                    s->mv_type = MV_TYPE_FIELD;
2574
                    s->mb_intra= 0;
2575
                    for(i=0; i<2; i++){
2576
                        j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2577
                        s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2578
                        s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2579
                    }
2580
                    break;
2581
                case CANDIDATE_MB_TYPE_BACKWARD_I:
2582
                    s->mv_dir = MV_DIR_BACKWARD;
2583
                    s->mv_type = MV_TYPE_FIELD;
2584
                    s->mb_intra= 0;
2585
                    for(i=0; i<2; i++){
2586
                        j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2587
                        s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2588
                        s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2589
                    }
2590
                    break;
2591
                case CANDIDATE_MB_TYPE_BIDIR_I:
2592
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2593
                    s->mv_type = MV_TYPE_FIELD;
2594
                    s->mb_intra= 0;
2595
                    for(dir=0; dir<2; dir++){
2596
                        for(i=0; i<2; i++){
2597
                            j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2598
                            s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2599
                            s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2600
                        }
2601
                    }
2602
                    break;
2603
                default:
2604
                    av_log(s->avctx, AV_LOG_ERROR, "illegal MB type\n");
2605
                }
2606

    
2607
                encode_mb(s, motion_x, motion_y);
2608

    
2609
                // RAL: Update last macroblock type
2610
                s->last_mv_dir = s->mv_dir;
2611

    
2612
                if (CONFIG_H263_ENCODER &&
2613
                    s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
2614
                    ff_h263_update_motion_val(s);
2615

    
2616
                MPV_decode_mb(s, s->block);
2617
            }
2618

    
2619
            /* clean the MV table in IPS frames for direct mode in B frames */
2620
            if(s->mb_intra /* && I,P,S_TYPE */){
2621
                s->p_mv_table[xy][0]=0;
2622
                s->p_mv_table[xy][1]=0;
2623
            }
2624

    
2625
            if(s->flags&CODEC_FLAG_PSNR){
2626
                int w= 16;
2627
                int h= 16;
2628

    
2629
                if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
2630
                if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
2631

    
2632
                s->current_picture.error[0] += sse(
2633
                    s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16,
2634
                    s->dest[0], w, h, s->linesize);
2635
                s->current_picture.error[1] += sse(
2636
                    s, s->new_picture.data[1] + s->mb_x*8  + s->mb_y*s->uvlinesize*chr_h,
2637
                    s->dest[1], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
2638
                s->current_picture.error[2] += sse(
2639
                    s, s->new_picture.data[2] + s->mb_x*8  + s->mb_y*s->uvlinesize*chr_h,
2640
                    s->dest[2], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
2641
            }
2642
            if(s->loop_filter){
2643
                if(CONFIG_H263_ENCODER && s->out_format == FMT_H263)
2644
                    ff_h263_loop_filter(s);
2645
            }
2646
//printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, put_bits_count(&s->pb));
2647
        }
2648
    }
2649

    
2650
    //not beautiful here but we must write it before flushing so it has to be here
2651
    if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == FF_I_TYPE)
2652
        msmpeg4_encode_ext_header(s);
2653

    
2654
    write_slice_end(s);
2655

    
2656
    /* Send the last GOB if RTP */
2657
    if (s->avctx->rtp_callback) {
2658
        int number_mb = (mb_y - s->resync_mb_y)*s->mb_width - s->resync_mb_x;
2659
        pdif = put_bits_ptr(&s->pb) - s->ptr_lastgob;
2660
        /* Call the RTP callback to send the last GOB */
2661
        emms_c();
2662
        s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, pdif, number_mb);
2663
    }
2664

    
2665
    return 0;
2666
}
2667

    
2668
#define MERGE(field) dst->field += src->field; src->field=0
2669
static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src){
2670
    MERGE(me.scene_change_score);
2671
    MERGE(me.mc_mb_var_sum_temp);
2672
    MERGE(me.mb_var_sum_temp);
2673
}
2674

    
2675
static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src){
2676
    int i;
2677

    
2678
    MERGE(dct_count[0]); //note, the other dct vars are not part of the context
2679
    MERGE(dct_count[1]);
2680
    MERGE(mv_bits);
2681
    MERGE(i_tex_bits);
2682
    MERGE(p_tex_bits);
2683
    MERGE(i_count);
2684
    MERGE(f_count);
2685
    MERGE(b_count);
2686
    MERGE(skip_count);
2687
    MERGE(misc_bits);
2688
    MERGE(error_count);
2689
    MERGE(padding_bug_score);
2690
    MERGE(current_picture.error[0]);
2691
    MERGE(current_picture.error[1]);
2692
    MERGE(current_picture.error[2]);
2693

    
2694
    if(dst->avctx->noise_reduction){
2695
        for(i=0; i<64; i++){
2696
            MERGE(dct_error_sum[0][i]);
2697
            MERGE(dct_error_sum[1][i]);
2698
        }
2699
    }
2700

    
2701
    assert(put_bits_count(&src->pb) % 8 ==0);
2702
    assert(put_bits_count(&dst->pb) % 8 ==0);
2703
    ff_copy_bits(&dst->pb, src->pb.buf, put_bits_count(&src->pb));
2704
    flush_put_bits(&dst->pb);
2705
}
2706

    
2707
static int estimate_qp(MpegEncContext *s, int dry_run){
2708
    if (s->next_lambda){
2709
        s->current_picture_ptr->quality=
2710
        s->current_picture.quality = s->next_lambda;
2711
        if(!dry_run) s->next_lambda= 0;
2712
    } else if (!s->fixed_qscale) {
2713
        s->current_picture_ptr->quality=
2714
        s->current_picture.quality = ff_rate_estimate_qscale(s, dry_run);
2715
        if (s->current_picture.quality < 0)
2716
            return -1;
2717
    }
2718

    
2719
    if(s->adaptive_quant){
2720
        switch(s->codec_id){
2721
        case CODEC_ID_MPEG4:
2722
            if (CONFIG_MPEG4_ENCODER)
2723
                ff_clean_mpeg4_qscales(s);
2724
            break;
2725
        case CODEC_ID_H263:
2726
        case CODEC_ID_H263P:
2727
        case CODEC_ID_FLV1:
2728
            if (CONFIG_H263_ENCODER)
2729
                ff_clean_h263_qscales(s);
2730
            break;
2731
        default:
2732
            ff_init_qscale_tab(s);
2733
        }
2734

    
2735
        s->lambda= s->lambda_table[0];
2736
        //FIXME broken
2737
    }else
2738
        s->lambda= s->current_picture.quality;
2739
//printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality);
2740
    update_qscale(s);
2741
    return 0;
2742
}
2743

    
2744
/* must be called before writing the header */
2745
static void set_frame_distances(MpegEncContext * s){
2746
    assert(s->current_picture_ptr->pts != AV_NOPTS_VALUE);
2747
    s->time= s->current_picture_ptr->pts*s->avctx->time_base.num;
2748

    
2749
    if(s->pict_type==FF_B_TYPE){
2750
        s->pb_time= s->pp_time - (s->last_non_b_time - s->time);
2751
        assert(s->pb_time > 0 && s->pb_time < s->pp_time);
2752
    }else{
2753
        s->pp_time= s->time - s->last_non_b_time;
2754
        s->last_non_b_time= s->time;
2755
        assert(s->picture_number==0 || s->pp_time > 0);
2756
    }
2757
}
2758

    
2759
static int encode_picture(MpegEncContext *s, int picture_number)
2760
{
2761
    int i;
2762
    int bits;
2763

    
2764
    s->picture_number = picture_number;
2765

    
2766
    /* Reset the average MB variance */
2767
    s->me.mb_var_sum_temp    =
2768
    s->me.mc_mb_var_sum_temp = 0;
2769

    
2770
    /* we need to initialize some time vars before we can encode b-frames */
2771
    // RAL: Condition added for MPEG1VIDEO
2772
    if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->h263_msmpeg4))
2773
        set_frame_distances(s);
2774
    if(CONFIG_MPEG4_ENCODER && s->codec_id == CODEC_ID_MPEG4)
2775
        ff_set_mpeg4_time(s);
2776

    
2777
    s->me.scene_change_score=0;
2778

    
2779
//    s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME rate distortion
2780

    
2781
    if(s->pict_type==FF_I_TYPE){
2782
        if(s->msmpeg4_version >= 3) s->no_rounding=1;
2783
        else                        s->no_rounding=0;
2784
    }else if(s->pict_type!=FF_B_TYPE){
2785
        if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
2786
            s->no_rounding ^= 1;
2787
    }
2788

    
2789
    if(s->flags & CODEC_FLAG_PASS2){
2790
        if (estimate_qp(s,1) < 0)
2791
            return -1;
2792
        ff_get_2pass_fcode(s);
2793
    }else if(!(s->flags & CODEC_FLAG_QSCALE)){
2794
        if(s->pict_type==FF_B_TYPE)
2795
            s->lambda= s->last_lambda_for[s->pict_type];
2796
        else
2797
            s->lambda= s->last_lambda_for[s->last_non_b_pict_type];
2798
        update_qscale(s);
2799
    }
2800

    
2801
    s->mb_intra=0; //for the rate distortion & bit compare functions
2802
    for(i=1; i<s->avctx->thread_count; i++){
2803
        ff_update_duplicate_context(s->thread_context[i], s);
2804
    }
2805

    
2806
    if(ff_init_me(s)<0)
2807
        return -1;
2808

    
2809
    /* Estimate motion for every MB */
2810
    if(s->pict_type != FF_I_TYPE){
2811
        s->lambda = (s->lambda * s->avctx->me_penalty_compensation + 128)>>8;
2812
        s->lambda2= (s->lambda2* (int64_t)s->avctx->me_penalty_compensation + 128)>>8;
2813
        if(s->pict_type != FF_B_TYPE && s->avctx->me_threshold==0){
2814
            if((s->avctx->pre_me && s->last_non_b_pict_type==FF_I_TYPE) || s->avctx->pre_me==2){
2815
                s->avctx->execute(s->avctx, pre_estimate_motion_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2816
            }
2817
        }
2818

    
2819
        s->avctx->execute(s->avctx, estimate_motion_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2820
    }else /* if(s->pict_type == FF_I_TYPE) */{
2821
        /* I-Frame */
2822
        for(i=0; i<s->mb_stride*s->mb_height; i++)
2823
            s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2824

    
2825
        if(!s->fixed_qscale){
2826
            /* finding spatial complexity for I-frame rate control */
2827
            s->avctx->execute(s->avctx, mb_var_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2828
        }
2829
    }
2830
    for(i=1; i<s->avctx->thread_count; i++){
2831
        merge_context_after_me(s, s->thread_context[i]);
2832
    }
2833
    s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum= s->me.mc_mb_var_sum_temp;
2834
    s->current_picture.   mb_var_sum= s->current_picture_ptr->   mb_var_sum= s->me.   mb_var_sum_temp;
2835
    emms_c();
2836

    
2837
    if(s->me.scene_change_score > s->avctx->scenechange_threshold && s->pict_type == FF_P_TYPE){
2838
        s->pict_type= FF_I_TYPE;
2839
        for(i=0; i<s->mb_stride*s->mb_height; i++)
2840
            s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2841
//printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum);
2842
    }
2843

    
2844
    if(!s->umvplus){
2845
        if(s->pict_type==FF_P_TYPE || s->pict_type==FF_S_TYPE) {
2846
            s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER);
2847

    
2848
            if(s->flags & CODEC_FLAG_INTERLACED_ME){
2849
                int a,b;
2850
                a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select
2851
                b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I);
2852
                s->f_code= FFMAX3(s->f_code, a, b);
2853
            }
2854

    
2855
            ff_fix_long_p_mvs(s);
2856
            ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0);
2857
            if(s->flags & CODEC_FLAG_INTERLACED_ME){
2858
                int j;
2859
                for(i=0; i<2; i++){
2860
                    for(j=0; j<2; j++)
2861
                        ff_fix_long_mvs(s, s->p_field_select_table[i], j,
2862
                                        s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0);
2863
                }
2864
            }
2865
        }
2866

    
2867
        if(s->pict_type==FF_B_TYPE){
2868
            int a, b;
2869

    
2870
            a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD);
2871
            b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2872
            s->f_code = FFMAX(a, b);
2873

    
2874
            a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD);
2875
            b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2876
            s->b_code = FFMAX(a, b);
2877

    
2878
            ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1);
2879
            ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1);
2880
            ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2881
            ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2882
            if(s->flags & CODEC_FLAG_INTERLACED_ME){
2883
                int dir, j;
2884
                for(dir=0; dir<2; dir++){
2885
                    for(i=0; i<2; i++){
2886
                        for(j=0; j<2; j++){
2887
                            int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I)
2888
                                          : (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I);
2889
                            ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j,
2890
                                            s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1);
2891
                        }
2892
                    }
2893
                }
2894
            }
2895
        }
2896
    }
2897

    
2898
    if (estimate_qp(s, 0) < 0)
2899
        return -1;
2900

    
2901
    if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==FF_I_TYPE && !(s->flags & CODEC_FLAG_QSCALE))
2902
        s->qscale= 3; //reduce clipping problems
2903

    
2904
    if (s->out_format == FMT_MJPEG) {
2905
        /* for mjpeg, we do include qscale in the matrix */
2906
        for(i=1;i<64;i++){
2907
            int j= s->dsp.idct_permutation[i];
2908

    
2909
            s->intra_matrix[j] = av_clip_uint8((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
2910
        }
2911
        s->y_dc_scale_table=
2912
        s->c_dc_scale_table= ff_mpeg2_dc_scale_table[s->intra_dc_precision];
2913
        s->intra_matrix[0] = ff_mpeg2_dc_scale_table[s->intra_dc_precision][8];
2914
        ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
2915
                       s->intra_matrix, s->intra_quant_bias, 8, 8, 1);
2916
        s->qscale= 8;
2917
    }
2918

    
2919
    //FIXME var duplication
2920
    s->current_picture_ptr->key_frame=
2921
    s->current_picture.key_frame= s->pict_type == FF_I_TYPE; //FIXME pic_ptr
2922
    s->current_picture_ptr->pict_type=
2923
    s->current_picture.pict_type= s->pict_type;
2924

    
2925
    if(s->current_picture.key_frame)
2926
        s->picture_in_gop_number=0;
2927

    
2928
    s->last_bits= put_bits_count(&s->pb);
2929
    switch(s->out_format) {
2930
    case FMT_MJPEG:
2931
        if (CONFIG_MJPEG_ENCODER)
2932
            ff_mjpeg_encode_picture_header(s);
2933
        break;
2934
    case FMT_H261:
2935
        if (CONFIG_H261_ENCODER)
2936
            ff_h261_encode_picture_header(s, picture_number);
2937
        break;
2938
    case FMT_H263:
2939
        if (CONFIG_WMV2_ENCODER && s->codec_id == CODEC_ID_WMV2)
2940
            ff_wmv2_encode_picture_header(s, picture_number);
2941
        else if (CONFIG_MSMPEG4_ENCODER && s->h263_msmpeg4)
2942
            msmpeg4_encode_picture_header(s, picture_number);
2943
        else if (CONFIG_MPEG4_ENCODER && s->h263_pred)
2944
            mpeg4_encode_picture_header(s, picture_number);
2945
        else if (CONFIG_RV10_ENCODER && s->codec_id == CODEC_ID_RV10)
2946
            rv10_encode_picture_header(s, picture_number);
2947
        else if (CONFIG_RV20_ENCODER && s->codec_id == CODEC_ID_RV20)
2948
            rv20_encode_picture_header(s, picture_number);
2949
        else if (CONFIG_FLV_ENCODER && s->codec_id == CODEC_ID_FLV1)
2950
            ff_flv_encode_picture_header(s, picture_number);
2951
        else if (CONFIG_H263_ENCODER)
2952
            h263_encode_picture_header(s, picture_number);
2953
        break;
2954
    case FMT_MPEG1:
2955
        if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
2956
            mpeg1_encode_picture_header(s, picture_number);
2957
        break;
2958
    case FMT_H264:
2959
        break;
2960
    default:
2961
        assert(0);
2962
    }
2963
    bits= put_bits_count(&s->pb);
2964
    s->header_bits= bits - s->last_bits;
2965

    
2966
    for(i=1; i<s->avctx->thread_count; i++){
2967
        update_duplicate_context_after_me(s->thread_context[i], s);
2968
    }
2969
    s->avctx->execute(s->avctx, encode_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2970
    for(i=1; i<s->avctx->thread_count; i++){
2971
        merge_context_after_encode(s, s->thread_context[i]);
2972
    }
2973
    emms_c();
2974
    return 0;
2975
}
2976

    
2977
void  denoise_dct_c(MpegEncContext *s, DCTELEM *block){
2978
    const int intra= s->mb_intra;
2979
    int i;
2980

    
2981
    s->dct_count[intra]++;
2982

    
2983
    for(i=0; i<64; i++){
2984
        int level= block[i];
2985

    
2986
        if(level){
2987
            if(level>0){
2988
                s->dct_error_sum[intra][i] += level;
2989
                level -= s->dct_offset[intra][i];
2990
                if(level<0) level=0;
2991
            }else{
2992
                s->dct_error_sum[intra][i] -= level;
2993
                level += s->dct_offset[intra][i];
2994
                if(level>0) level=0;
2995
            }
2996
            block[i]= level;
2997
        }
2998
    }
2999
}
3000

    
3001
int dct_quantize_trellis_c(MpegEncContext *s,
3002
                        DCTELEM *block, int n,
3003
                        int qscale, int *overflow){
3004
    const int *qmat;
3005
    const uint8_t *scantable= s->intra_scantable.scantable;
3006
    const uint8_t *perm_scantable= s->intra_scantable.permutated;
3007
    int max=0;
3008
    unsigned int threshold1, threshold2;
3009
    int bias=0;
3010
    int run_tab[65];
3011
    int level_tab[65];
3012
    int score_tab[65];
3013
    int survivor[65];
3014
    int survivor_count;
3015
    int last_run=0;
3016
    int last_level=0;
3017
    int last_score= 0;
3018
    int last_i;
3019
    int coeff[2][64];
3020
    int coeff_count[64];
3021
    int qmul, qadd, start_i, last_non_zero, i, dc;
3022
    const int esc_length= s->ac_esc_length;
3023
    uint8_t * length;
3024
    uint8_t * last_length;
3025
    const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6);
3026

    
3027
    s->dsp.fdct (block);
3028

    
3029
    if(s->dct_error_sum)
3030
        s->denoise_dct(s, block);
3031
    qmul= qscale*16;
3032
    qadd= ((qscale-1)|1)*8;
3033

    
3034
    if (s->mb_intra) {
3035
        int q;
3036
        if (!s->h263_aic) {
3037
            if (n < 4)
3038
                q = s->y_dc_scale;
3039
            else
3040
                q = s->c_dc_scale;
3041
            q = q << 3;
3042
        } else{
3043
            /* For AIC we skip quant/dequant of INTRADC */
3044
            q = 1 << 3;
3045
            qadd=0;
3046
        }
3047

    
3048
        /* note: block[0] is assumed to be positive */
3049
        block[0] = (block[0] + (q >> 1)) / q;
3050
        start_i = 1;
3051
        last_non_zero = 0;
3052
        qmat = s->q_intra_matrix[qscale];
3053
        if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3054
            bias= 1<<(QMAT_SHIFT-1);
3055
        length     = s->intra_ac_vlc_length;
3056
        last_length= s->intra_ac_vlc_last_length;
3057
    } else {
3058
        start_i = 0;
3059
        last_non_zero = -1;
3060
        qmat = s->q_inter_matrix[qscale];
3061
        length     = s->inter_ac_vlc_length;
3062
        last_length= s->inter_ac_vlc_last_length;
3063
    }
3064
    last_i= start_i;
3065

    
3066
    threshold1= (1<<QMAT_SHIFT) - bias - 1;
3067
    threshold2= (threshold1<<1);
3068

    
3069
    for(i=63; i>=start_i; i--) {
3070
        const int j = scantable[i];
3071
        int level = block[j] * qmat[j];
3072

    
3073
        if(((unsigned)(level+threshold1))>threshold2){
3074
            last_non_zero = i;
3075
            break;
3076
        }
3077
    }
3078

    
3079
    for(i=start_i; i<=last_non_zero; i++) {
3080
        const int j = scantable[i];
3081
        int level = block[j] * qmat[j];
3082

    
3083
//        if(   bias+level >= (1<<(QMAT_SHIFT - 3))
3084
//           || bias-level >= (1<<(QMAT_SHIFT - 3))){
3085
        if(((unsigned)(level+threshold1))>threshold2){
3086
            if(level>0){
3087
                level= (bias + level)>>QMAT_SHIFT;
3088
                coeff[0][i]= level;
3089
                coeff[1][i]= level-1;
3090
//                coeff[2][k]= level-2;
3091
            }else{
3092
                level= (bias - level)>>QMAT_SHIFT;
3093
                coeff[0][i]= -level;
3094
                coeff[1][i]= -level+1;
3095
//                coeff[2][k]= -level+2;
3096
            }
3097
            coeff_count[i]= FFMIN(level, 2);
3098
            assert(coeff_count[i]);
3099
            max |=level;
3100
        }else{
3101
            coeff[0][i]= (level>>31)|1;
3102
            coeff_count[i]= 1;
3103
        }
3104
    }
3105

    
3106
    *overflow= s->max_qcoeff < max; //overflow might have happened
3107

    
3108
    if(last_non_zero < start_i){
3109
        memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3110
        return last_non_zero;
3111
    }
3112

    
3113
    score_tab[start_i]= 0;
3114
    survivor[0]= start_i;
3115
    survivor_count= 1;
3116

    
3117
    for(i=start_i; i<=last_non_zero; i++){
3118
        int level_index, j, zero_distortion;
3119
        int dct_coeff= FFABS(block[ scantable[i] ]);
3120
        int best_score=256*256*256*120;
3121

    
3122
        if (   s->dsp.fdct == fdct_ifast
3123
#ifndef FAAN_POSTSCALE
3124
            || s->dsp.fdct == ff_faandct
3125
#endif
3126
           )
3127
            dct_coeff= (dct_coeff*ff_inv_aanscales[ scantable[i] ]) >> 12;
3128
        zero_distortion= dct_coeff*dct_coeff;
3129

    
3130
        for(level_index=0; level_index < coeff_count[i]; level_index++){
3131
            int distortion;
3132
            int level= coeff[level_index][i];
3133
            const int alevel= FFABS(level);
3134
            int unquant_coeff;
3135

    
3136
            assert(level);
3137

    
3138
            if(s->out_format == FMT_H263){
3139
                unquant_coeff= alevel*qmul + qadd;
3140
            }else{ //MPEG1
3141
                j= s->dsp.idct_permutation[ scantable[i] ]; //FIXME optimize
3142
                if(s->mb_intra){
3143
                        unquant_coeff = (int)(  alevel  * qscale * s->intra_matrix[j]) >> 3;
3144
                        unquant_coeff =   (unquant_coeff - 1) | 1;
3145
                }else{
3146
                        unquant_coeff = (((  alevel  << 1) + 1) * qscale * ((int) s->inter_matrix[j])) >> 4;
3147
                        unquant_coeff =   (unquant_coeff - 1) | 1;
3148
                }
3149
                unquant_coeff<<= 3;
3150
            }
3151

    
3152
            distortion= (unquant_coeff - dct_coeff) * (unquant_coeff - dct_coeff) - zero_distortion;
3153
            level+=64;
3154
            if((level&(~127)) == 0){
3155
                for(j=survivor_count-1; j>=0; j--){
3156
                    int run= i - survivor[j];
3157
                    int score= distortion + length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3158
                    score += score_tab[i-run];
3159

    
3160
                    if(score < best_score){
3161
                        best_score= score;
3162
                        run_tab[i+1]= run;
3163
                        level_tab[i+1]= level-64;
3164
                    }
3165
                }
3166

    
3167
                if(s->out_format == FMT_H263){
3168
                    for(j=survivor_count-1; j>=0; j--){
3169
                        int run= i - survivor[j];
3170
                        int score= distortion + last_length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3171
                        score += score_tab[i-run];
3172
                        if(score < last_score){
3173
                            last_score= score;
3174
                            last_run= run;
3175
                            last_level= level-64;
3176
                            last_i= i+1;
3177
                        }
3178
                    }
3179
                }
3180
            }else{
3181
                distortion += esc_length*lambda;
3182
                for(j=survivor_count-1; j>=0; j--){
3183
                    int run= i - survivor[j];
3184
                    int score= distortion + score_tab[i-run];
3185

    
3186
                    if(score < best_score){
3187
                        best_score= score;
3188
                        run_tab[i+1]= run;
3189
                        level_tab[i+1]= level-64;
3190
                    }
3191
                }
3192

    
3193
                if(s->out_format == FMT_H263){
3194
                  for(j=survivor_count-1; j>=0; j--){
3195
                        int run= i - survivor[j];
3196
                        int score= distortion + score_tab[i-run];
3197
                        if(score < last_score){
3198
                            last_score= score;
3199
                            last_run= run;
3200
                            last_level= level-64;
3201
                            last_i= i+1;
3202
                        }
3203
                    }
3204
                }
3205
            }
3206
        }
3207

    
3208
        score_tab[i+1]= best_score;
3209

    
3210
        //Note: there is a vlc code in mpeg4 which is 1 bit shorter then another one with a shorter run and the same level
3211
        if(last_non_zero <= 27){
3212
            for(; survivor_count; survivor_count--){
3213
                if(score_tab[ survivor[survivor_count-1] ] <= best_score)
3214
                    break;
3215
            }
3216
        }else{
3217
            for(; survivor_count; survivor_count--){
3218
                if(score_tab[ survivor[survivor_count-1] ] <= best_score + lambda)
3219
                    break;
3220
            }
3221
        }
3222

    
3223
        survivor[ survivor_count++ ]= i+1;
3224
    }
3225

    
3226
    if(s->out_format != FMT_H263){
3227
        last_score= 256*256*256*120;
3228
        for(i= survivor[0]; i<=last_non_zero + 1; i++){
3229
            int score= score_tab[i];
3230
            if(i) score += lambda*2; //FIXME exacter?
3231

    
3232
            if(score < last_score){
3233
                last_score= score;
3234
                last_i= i;
3235
                last_level= level_tab[i];
3236
                last_run= run_tab[i];
3237
            }
3238
        }
3239
    }
3240

    
3241
    s->coded_score[n] = last_score;
3242

    
3243
    dc= FFABS(block[0]);
3244
    last_non_zero= last_i - 1;
3245
    memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3246

    
3247
    if(last_non_zero < start_i)
3248
        return last_non_zero;
3249

    
3250
    if(last_non_zero == 0 && start_i == 0){
3251
        int best_level= 0;
3252
        int best_score= dc * dc;
3253

    
3254
        for(i=0; i<coeff_count[0]; i++){
3255
            int level= coeff[i][0];
3256
            int alevel= FFABS(level);
3257
            int unquant_coeff, score, distortion;
3258

    
3259
            if(s->out_format == FMT_H263){
3260
                    unquant_coeff= (alevel*qmul + qadd)>>3;
3261
            }else{ //MPEG1
3262
                    unquant_coeff = (((  alevel  << 1) + 1) * qscale * ((int) s->inter_matrix[0])) >> 4;
3263
                    unquant_coeff =   (unquant_coeff - 1) | 1;
3264
            }
3265
            unquant_coeff = (unquant_coeff + 4) >> 3;
3266
            unquant_coeff<<= 3 + 3;
3267

    
3268
            distortion= (unquant_coeff - dc) * (unquant_coeff - dc);
3269
            level+=64;
3270
            if((level&(~127)) == 0) score= distortion + last_length[UNI_AC_ENC_INDEX(0, level)]*lambda;
3271
            else                    score= distortion + esc_length*lambda;
3272

    
3273
            if(score < best_score){
3274
                best_score= score;
3275
                best_level= level - 64;
3276
            }
3277
        }
3278
        block[0]= best_level;
3279
        s->coded_score[n] = best_score - dc*dc;
3280
        if(best_level == 0) return -1;
3281
        else                return last_non_zero;
3282
    }
3283

    
3284
    i= last_i;
3285
    assert(last_level);
3286

    
3287
    block[ perm_scantable[last_non_zero] ]= last_level;
3288
    i -= last_run + 1;
3289

    
3290
    for(; i>start_i; i -= run_tab[i] + 1){
3291
        block[ perm_scantable[i-1] ]= level_tab[i];
3292
    }
3293

    
3294
    return last_non_zero;
3295
}
3296

    
3297
//#define REFINE_STATS 1
3298
static int16_t basis[64][64];
3299

    
3300
static void build_basis(uint8_t *perm){
3301
    int i, j, x, y;
3302
    emms_c();
3303
    for(i=0; i<8; i++){
3304
        for(j=0; j<8; j++){
3305
            for(y=0; y<8; y++){
3306
                for(x=0; x<8; x++){
3307
                    double s= 0.25*(1<<BASIS_SHIFT);
3308
                    int index= 8*i + j;
3309
                    int perm_index= perm[index];
3310
                    if(i==0) s*= sqrt(0.5);
3311
                    if(j==0) s*= sqrt(0.5);
3312
                    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)));
3313
                }
3314
            }
3315
        }
3316
    }
3317
}
3318

    
3319
static int dct_quantize_refine(MpegEncContext *s, //FIXME breaks denoise?
3320
                        DCTELEM *block, int16_t *weight, DCTELEM *orig,
3321
                        int n, int qscale){
3322
    int16_t rem[64];
3323
    LOCAL_ALIGNED_16(DCTELEM, d1, [64]);
3324
    const uint8_t *scantable= s->intra_scantable.scantable;
3325
    const uint8_t *perm_scantable= s->intra_scantable.permutated;
3326
//    unsigned int threshold1, threshold2;
3327
//    int bias=0;
3328
    int run_tab[65];
3329
    int prev_run=0;
3330
    int prev_level=0;
3331
    int qmul, qadd, start_i, last_non_zero, i, dc;
3332
    uint8_t * length;
3333
    uint8_t * last_length;
3334
    int lambda;
3335
    int rle_index, run, q = 1, sum; //q is only used when s->mb_intra is true
3336
#ifdef REFINE_STATS
3337
static int count=0;
3338
static int after_last=0;
3339
static int to_zero=0;
3340
static int from_zero=0;
3341
static int raise=0;
3342
static int lower=0;
3343
static int messed_sign=0;
3344
#endif
3345

    
3346
    if(basis[0][0] == 0)
3347
        build_basis(s->dsp.idct_permutation);
3348

    
3349
    qmul= qscale*2;
3350
    qadd= (qscale-1)|1;
3351
    if (s->mb_intra) {
3352
        if (!s->h263_aic) {
3353
            if (n < 4)
3354
                q = s->y_dc_scale;
3355
            else
3356
                q = s->c_dc_scale;
3357
        } else{
3358
            /* For AIC we skip quant/dequant of INTRADC */
3359
            q = 1;
3360
            qadd=0;
3361
        }
3362
        q <<= RECON_SHIFT-3;
3363
        /* note: block[0] is assumed to be positive */
3364
        dc= block[0]*q;
3365
//        block[0] = (block[0] + (q >> 1)) / q;
3366
        start_i = 1;
3367
//        if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3368
//            bias= 1<<(QMAT_SHIFT-1);
3369
        length     = s->intra_ac_vlc_length;
3370
        last_length= s->intra_ac_vlc_last_length;
3371
    } else {
3372
        dc= 0;
3373
        start_i = 0;
3374
        length     = s->inter_ac_vlc_length;
3375
        last_length= s->inter_ac_vlc_last_length;
3376
    }
3377
    last_non_zero = s->block_last_index[n];
3378

    
3379
#ifdef REFINE_STATS
3380
{START_TIMER
3381
#endif
3382
    dc += (1<<(RECON_SHIFT-1));
3383
    for(i=0; i<64; i++){
3384
        rem[i]= dc - (orig[i]<<RECON_SHIFT); //FIXME  use orig dirrectly instead of copying to rem[]
3385
    }
3386
#ifdef REFINE_STATS
3387
STOP_TIMER("memset rem[]")}
3388
#endif
3389
    sum=0;
3390
    for(i=0; i<64; i++){
3391
        int one= 36;
3392
        int qns=4;
3393
        int w;
3394

    
3395
        w= FFABS(weight[i]) + qns*one;
3396
        w= 15 + (48*qns*one + w/2)/w; // 16 .. 63
3397

    
3398
        weight[i] = w;
3399
//        w=weight[i] = (63*qns + (w/2)) / w;
3400

    
3401
        assert(w>0);
3402
        assert(w<(1<<6));
3403
        sum += w*w;
3404
    }
3405
    lambda= sum*(uint64_t)s->lambda2 >> (FF_LAMBDA_SHIFT - 6 + 6 + 6 + 6);
3406
#ifdef REFINE_STATS
3407
{START_TIMER
3408
#endif
3409
    run=0;
3410
    rle_index=0;
3411
    for(i=start_i; i<=last_non_zero; i++){
3412
        int j= perm_scantable[i];
3413
        const int level= block[j];
3414
        int coeff;
3415

    
3416
        if(level){
3417
            if(level<0) coeff= qmul*level - qadd;
3418
            else        coeff= qmul*level + qadd;
3419
            run_tab[rle_index++]=run;
3420
            run=0;
3421

    
3422
            s->dsp.add_8x8basis(rem, basis[j], coeff);
3423
        }else{
3424
            run++;
3425
        }
3426
    }
3427
#ifdef REFINE_STATS
3428
if(last_non_zero>0){
3429
STOP_TIMER("init rem[]")
3430
}
3431
}
3432

    
3433
{START_TIMER
3434
#endif
3435
    for(;;){
3436
        int best_score=s->dsp.try_8x8basis(rem, weight, basis[0], 0);
3437
        int best_coeff=0;
3438
        int best_change=0;
3439
        int run2, best_unquant_change=0, analyze_gradient;
3440
#ifdef REFINE_STATS
3441
{START_TIMER
3442
#endif
3443
        analyze_gradient = last_non_zero > 2 || s->avctx->quantizer_noise_shaping >= 3;
3444

    
3445
        if(analyze_gradient){
3446
#ifdef REFINE_STATS
3447
{START_TIMER
3448
#endif
3449
            for(i=0; i<64; i++){
3450
                int w= weight[i];
3451

    
3452
                d1[i] = (rem[i]*w*w + (1<<(RECON_SHIFT+12-1)))>>(RECON_SHIFT+12);
3453
            }
3454
#ifdef REFINE_STATS
3455
STOP_TIMER("rem*w*w")}
3456
{START_TIMER
3457
#endif
3458
            s->dsp.fdct(d1);
3459
#ifdef REFINE_STATS
3460
STOP_TIMER("dct")}
3461
#endif
3462
        }
3463

    
3464
        if(start_i){
3465
            const int level= block[0];
3466
            int change, old_coeff;
3467

    
3468
            assert(s->mb_intra);
3469

    
3470
            old_coeff= q*level;
3471

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

    
3476
                new_coeff= q*new_level;
3477
                if(new_coeff >= 2048 || new_coeff < 0)
3478
                    continue;
3479

    
3480
                score= s->dsp.try_8x8basis(rem, weight, basis[0], new_coeff - old_coeff);
3481
                if(score<best_score){
3482
                    best_score= score;
3483
                    best_coeff= 0;
3484
                    best_change= change;
3485
                    best_unquant_change= new_coeff - old_coeff;
3486
                }
3487
            }
3488
        }
3489

    
3490
        run=0;
3491
        rle_index=0;
3492
        run2= run_tab[rle_index++];
3493
        prev_level=0;
3494
        prev_run=0;
3495

    
3496
        for(i=start_i; i<64; i++){
3497
            int j= perm_scantable[i];
3498
            const int level= block[j];
3499
            int change, old_coeff;
3500

    
3501
            if(s->avctx->quantizer_noise_shaping < 3 && i > last_non_zero + 1)
3502
                break;
3503

    
3504
            if(level){
3505
                if(level<0) old_coeff= qmul*level - qadd;
3506
                else        old_coeff= qmul*level + qadd;
3507
                run2= run_tab[rle_index++]; //FIXME ! maybe after last
3508
            }else{
3509
                old_coeff=0;
3510
                run2--;
3511
                assert(run2>=0 || i >= last_non_zero );
3512
            }
3513

    
3514
            for(change=-1; change<=1; change+=2){
3515
                int new_level= level + change;
3516
                int score, new_coeff, unquant_change;
3517

    
3518
                score=0;
3519
                if(s->avctx->quantizer_noise_shaping < 2 && FFABS(new_level) > FFABS(level))
3520
                   continue;
3521

    
3522
                if(new_level){
3523
                    if(new_level<0) new_coeff= qmul*new_level - qadd;
3524
                    else            new_coeff= qmul*new_level + qadd;
3525
                    if(new_coeff >= 2048 || new_coeff <= -2048)
3526
                        continue;
3527
                    //FIXME check for overflow
3528

    
3529
                    if(level){
3530
                        if(level < 63 && level > -63){
3531
                            if(i < last_non_zero)
3532
                                score +=   length[UNI_AC_ENC_INDEX(run, new_level+64)]
3533
                                         - length[UNI_AC_ENC_INDEX(run, level+64)];
3534
                            else
3535
                                score +=   last_length[UNI_AC_ENC_INDEX(run, new_level+64)]
3536
                                         - last_length[UNI_AC_ENC_INDEX(run, level+64)];
3537
                        }
3538
                    }else{
3539
                        assert(FFABS(new_level)==1);
3540

    
3541
                        if(analyze_gradient){
3542
                            int g= d1[ scantable[i] ];
3543
                            if(g && (g^new_level) >= 0)
3544
                                continue;
3545
                        }
3546

    
3547
                        if(i < last_non_zero){
3548
                            int next_i= i + run2 + 1;
3549
                            int next_level= block[ perm_scantable[next_i] ] + 64;
3550

    
3551
                            if(next_level&(~127))
3552
                                next_level= 0;
3553

    
3554
                            if(next_i < last_non_zero)
3555
                                score +=   length[UNI_AC_ENC_INDEX(run, 65)]
3556
                                         + length[UNI_AC_ENC_INDEX(run2, next_level)]
3557
                                         - length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3558
                            else
3559
                                score +=  length[UNI_AC_ENC_INDEX(run, 65)]
3560
                                        + last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3561
                                        - last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3562
                        }else{
3563
                            score += last_length[UNI_AC_ENC_INDEX(run, 65)];
3564
                            if(prev_level){
3565
                                score +=  length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3566
                                        - last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3567
                            }
3568
                        }
3569
                    }
3570
                }else{
3571
                    new_coeff=0;
3572
                    assert(FFABS(level)==1);
3573

    
3574
                    if(i < last_non_zero){
3575
                        int next_i= i + run2 + 1;
3576
                        int next_level= block[ perm_scantable[next_i] ] + 64;
3577

    
3578
                        if(next_level&(~127))
3579
                            next_level= 0;
3580

    
3581
                        if(next_i < last_non_zero)
3582
                            score +=   length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3583
                                     - length[UNI_AC_ENC_INDEX(run2, next_level)]
3584
                                     - length[UNI_AC_ENC_INDEX(run, 65)];
3585
                        else
3586
                            score +=   last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3587
                                     - last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3588
                                     - length[UNI_AC_ENC_INDEX(run, 65)];
3589
                    }else{
3590
                        score += -last_length[UNI_AC_ENC_INDEX(run, 65)];
3591
                        if(prev_level){
3592
                            score +=  last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3593
                                    - length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3594
                        }
3595
                    }
3596
                }
3597

    
3598
                score *= lambda;
3599

    
3600
                unquant_change= new_coeff - old_coeff;
3601
                assert((score < 100*lambda && score > -100*lambda) || lambda==0);
3602

    
3603
                score+= s->dsp.try_8x8basis(rem, weight, basis[j], unquant_change);
3604
                if(score<best_score){
3605
                    best_score= score;
3606
                    best_coeff= i;
3607
                    best_change= change;
3608
                    best_unquant_change= unquant_change;
3609
                }
3610
            }
3611
            if(level){
3612
                prev_level= level + 64;
3613
                if(prev_level&(~127))
3614
                    prev_level= 0;
3615
                prev_run= run;
3616
                run=0;
3617
            }else{
3618
                run++;
3619
            }
3620
        }
3621
#ifdef REFINE_STATS
3622
STOP_TIMER("iterative step")}
3623
#endif
3624

    
3625
        if(best_change){
3626
            int j= perm_scantable[ best_coeff ];
3627

    
3628
            block[j] += best_change;
3629

    
3630
            if(best_coeff > last_non_zero){
3631
                last_non_zero= best_coeff;
3632
                assert(block[j]);
3633
#ifdef REFINE_STATS
3634
after_last++;
3635
#endif
3636
            }else{
3637
#ifdef REFINE_STATS
3638
if(block[j]){
3639
    if(block[j] - best_change){
3640
        if(FFABS(block[j]) > FFABS(block[j] - best_change)){
3641
            raise++;
3642
        }else{
3643
            lower++;
3644
        }
3645
    }else{
3646
        from_zero++;
3647
    }
3648
}else{
3649
    to_zero++;
3650
}
3651
#endif
3652
                for(; last_non_zero>=start_i; last_non_zero--){
3653
                    if(block[perm_scantable[last_non_zero]])
3654
                        break;
3655
                }
3656
            }
3657
#ifdef REFINE_STATS
3658
count++;
3659
if(256*256*256*64 % count == 0){
3660
    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);
3661
}
3662
#endif
3663
            run=0;
3664
            rle_index=0;
3665
            for(i=start_i; i<=last_non_zero; i++){
3666
                int j= perm_scantable[i];
3667
                const int level= block[j];
3668

    
3669
                 if(level){
3670
                     run_tab[rle_index++]=run;
3671
                     run=0;
3672
                 }else{
3673
                     run++;
3674
                 }
3675
            }
3676

    
3677
            s->dsp.add_8x8basis(rem, basis[j], best_unquant_change);
3678
        }else{
3679
            break;
3680
        }
3681
    }
3682
#ifdef REFINE_STATS
3683
if(last_non_zero>0){
3684
STOP_TIMER("iterative search")
3685
}
3686
}
3687
#endif
3688

    
3689
    return last_non_zero;
3690
}
3691

    
3692
int dct_quantize_c(MpegEncContext *s,
3693
                        DCTELEM *block, int n,
3694
                        int qscale, int *overflow)
3695
{
3696
    int i, j, level, last_non_zero, q, start_i;
3697
    const int *qmat;
3698
    const uint8_t *scantable= s->intra_scantable.scantable;
3699
    int bias;
3700
    int max=0;
3701
    unsigned int threshold1, threshold2;
3702

    
3703
    s->dsp.fdct (block);
3704

    
3705
    if(s->dct_error_sum)
3706
        s->denoise_dct(s, block);
3707

    
3708
    if (s->mb_intra) {
3709
        if (!s->h263_aic) {
3710
            if (n < 4)
3711
                q = s->y_dc_scale;
3712
            else
3713
                q = s->c_dc_scale;
3714
            q = q << 3;
3715
        } else
3716
            /* For AIC we skip quant/dequant of INTRADC */
3717
            q = 1 << 3;
3718

    
3719
        /* note: block[0] is assumed to be positive */
3720
        block[0] = (block[0] + (q >> 1)) / q;
3721
        start_i = 1;
3722
        last_non_zero = 0;
3723
        qmat = s->q_intra_matrix[qscale];
3724
        bias= s->intra_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3725
    } else {
3726
        start_i = 0;
3727
        last_non_zero = -1;
3728
        qmat = s->q_inter_matrix[qscale];
3729
        bias= s->inter_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3730
    }
3731
    threshold1= (1<<QMAT_SHIFT) - bias - 1;
3732
    threshold2= (threshold1<<1);
3733
    for(i=63;i>=start_i;i--) {
3734
        j = scantable[i];
3735
        level = block[j] * qmat[j];
3736

    
3737
        if(((unsigned)(level+threshold1))>threshold2){
3738
            last_non_zero = i;
3739
            break;
3740
        }else{
3741
            block[j]=0;
3742
        }
3743
    }
3744
    for(i=start_i; i<=last_non_zero; i++) {
3745
        j = scantable[i];
3746
        level = block[j] * qmat[j];
3747

    
3748
//        if(   bias+level >= (1<<QMAT_SHIFT)
3749
//           || bias-level >= (1<<QMAT_SHIFT)){
3750
        if(((unsigned)(level+threshold1))>threshold2){
3751
            if(level>0){
3752
                level= (bias + level)>>QMAT_SHIFT;
3753
                block[j]= level;
3754
            }else{
3755
                level= (bias - level)>>QMAT_SHIFT;
3756
                block[j]= -level;
3757
            }
3758
            max |=level;
3759
        }else{
3760
            block[j]=0;
3761
        }
3762
    }
3763
    *overflow= s->max_qcoeff < max; //overflow might have happened
3764

    
3765
    /* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */
3766
    if (s->dsp.idct_permutation_type != FF_NO_IDCT_PERM)
3767
        ff_block_permute(block, s->dsp.idct_permutation, scantable, last_non_zero);
3768

    
3769
    return last_non_zero;
3770
}
3771

    
3772
AVCodec h263_encoder = {
3773
    "h263",
3774
    AVMEDIA_TYPE_VIDEO,
3775
    CODEC_ID_H263,
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.263-1996"),
3782
};
3783

    
3784
AVCodec h263p_encoder = {
3785
    "h263p",
3786
    AVMEDIA_TYPE_VIDEO,
3787
    CODEC_ID_H263P,
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("H.263+ / H.263-1998 / H.263 version 2"),
3794
};
3795

    
3796
AVCodec msmpeg4v1_encoder = {
3797
    "msmpeg4v1",
3798
    AVMEDIA_TYPE_VIDEO,
3799
    CODEC_ID_MSMPEG4V1,
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
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 1"),
3806
};
3807

    
3808
AVCodec msmpeg4v2_encoder = {
3809
    "msmpeg4v2",
3810
    AVMEDIA_TYPE_VIDEO,
3811
    CODEC_ID_MSMPEG4V2,
3812
    sizeof(MpegEncContext),
3813
    MPV_encode_init,
3814
    MPV_encode_picture,
3815
    MPV_encode_end,
3816
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3817
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 2"),
3818
};
3819

    
3820
AVCodec msmpeg4v3_encoder = {
3821
    "msmpeg4",
3822
    AVMEDIA_TYPE_VIDEO,
3823
    CODEC_ID_MSMPEG4V3,
3824
    sizeof(MpegEncContext),
3825
    MPV_encode_init,
3826
    MPV_encode_picture,
3827
    MPV_encode_end,
3828
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3829
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 3"),
3830
};
3831

    
3832
AVCodec wmv1_encoder = {
3833
    "wmv1",
3834
    AVMEDIA_TYPE_VIDEO,
3835
    CODEC_ID_WMV1,
3836
    sizeof(MpegEncContext),
3837
    MPV_encode_init,
3838
    MPV_encode_picture,
3839
    MPV_encode_end,
3840
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3841
    .long_name= NULL_IF_CONFIG_SMALL("Windows Media Video 7"),
3842
};