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ffmpeg / libavcodec / mpegvideo_enc.c @ 2912e87a

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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>
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 *
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 * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
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 *
8
 * This file is part of Libav.
9
 *
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 * Libav 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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 * Libav 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 Libav; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23
 */
24

    
25
/**
26
 * @file
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
static void denoise_dct_c(MpegEncContext *s, DCTELEM *block);
52
static int dct_quantize_trellis_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
53

    
54
/* enable all paranoid tests for rounding, overflows, etc... */
55
//#define PARANOID
56

    
57
//#define DEBUG
58

    
59
static uint8_t default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
60
static uint8_t default_fcode_tab[MAX_MV*2+1];
61

    
62
void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
63
                           const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra)
64
{
65
    int qscale;
66
    int shift=0;
67

    
68
    for(qscale=qmin; qscale<=qmax; qscale++){
69
        int i;
70
        if (dsp->fdct == ff_jpeg_fdct_islow
71
#ifdef FAAN_POSTSCALE
72
            || dsp->fdct == ff_faandct
73
#endif
74
            ) {
75
            for(i=0;i<64;i++) {
76
                const int j= dsp->idct_permutation[i];
77
                /* 16 <= qscale * quant_matrix[i] <= 7905 */
78
                /* 19952             <= ff_aanscales[i] * qscale * quant_matrix[i]               <= 249205026 */
79
                /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1 << 36) / 249205026 */
80
                /* 3444240           >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
81

    
82
                qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) /
83
                                (qscale * quant_matrix[j]));
84
            }
85
        } else if (dsp->fdct == fdct_ifast
86
#ifndef FAAN_POSTSCALE
87
                   || dsp->fdct == ff_faandct
88
#endif
89
                   ) {
90
            for(i=0;i<64;i++) {
91
                const int j= dsp->idct_permutation[i];
92
                /* 16 <= qscale * quant_matrix[i] <= 7905 */
93
                /* 19952             <= ff_aanscales[i] * qscale * quant_matrix[i]               <= 249205026 */
94
                /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
95
                /* 3444240           >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
96

    
97
                qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) /
98
                                (ff_aanscales[i] * qscale * quant_matrix[j]));
99
            }
100
        } else {
101
            for(i=0;i<64;i++) {
102
                const int j= dsp->idct_permutation[i];
103
                /* We can safely suppose that 16 <= quant_matrix[i] <= 255
104
                   So 16           <= qscale * quant_matrix[i]             <= 7905
105
                   so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
106
                   so 32768        >= (1<<19) / (qscale * quant_matrix[i]) >= 67
107
                */
108
                qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / (qscale * quant_matrix[j]));
109
//                qmat  [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
110
                qmat16[qscale][0][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[j]);
111

    
112
                if(qmat16[qscale][0][i]==0 || qmat16[qscale][0][i]==128*256) qmat16[qscale][0][i]=128*256-1;
113
                qmat16[qscale][1][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][0][i]);
114
            }
115
        }
116

    
117
        for(i=intra; i<64; i++){
118
            int64_t max= 8191;
119
            if (dsp->fdct == fdct_ifast
120
#ifndef FAAN_POSTSCALE
121
                   || dsp->fdct == ff_faandct
122
#endif
123
                   ) {
124
                max = (8191LL*ff_aanscales[i]) >> 14;
125
            }
126
            while(((max * qmat[qscale][i]) >> shift) > INT_MAX){
127
                shift++;
128
            }
129
        }
130
    }
131
    if(shift){
132
        av_log(NULL, AV_LOG_INFO, "Warning, QMAT_SHIFT is larger than %d, overflows possible\n", QMAT_SHIFT - shift);
133
    }
134
}
135

    
136
static inline void update_qscale(MpegEncContext *s){
137
    s->qscale= (s->lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
138
    s->qscale= av_clip(s->qscale, s->avctx->qmin, s->avctx->qmax);
139

    
140
    s->lambda2= (s->lambda*s->lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
141
}
142

    
143
void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix){
144
    int i;
145

    
146
    if(matrix){
147
        put_bits(pb, 1, 1);
148
        for(i=0;i<64;i++) {
149
            put_bits(pb, 8, matrix[ ff_zigzag_direct[i] ]);
150
        }
151
    }else
152
        put_bits(pb, 1, 0);
153
}
154

    
155
/**
156
 * init s->current_picture.qscale_table from s->lambda_table
157
 */
158
void ff_init_qscale_tab(MpegEncContext *s){
159
    int8_t * const qscale_table= s->current_picture.qscale_table;
160
    int i;
161

    
162
    for(i=0; i<s->mb_num; i++){
163
        unsigned int lam= s->lambda_table[ s->mb_index2xy[i] ];
164
        int qp= (lam*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
165
        qscale_table[ s->mb_index2xy[i] ]= av_clip(qp, s->avctx->qmin, s->avctx->qmax);
166
    }
167
}
168

    
169
static void copy_picture_attributes(MpegEncContext *s, AVFrame *dst, AVFrame *src){
170
    int i;
171

    
172
    dst->pict_type              = src->pict_type;
173
    dst->quality                = src->quality;
174
    dst->coded_picture_number   = src->coded_picture_number;
175
    dst->display_picture_number = src->display_picture_number;
176
//    dst->reference              = src->reference;
177
    dst->pts                    = src->pts;
178
    dst->interlaced_frame       = src->interlaced_frame;
179
    dst->top_field_first        = src->top_field_first;
180

    
181
    if(s->avctx->me_threshold){
182
        if(!src->motion_val[0])
183
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_val not set!\n");
184
        if(!src->mb_type)
185
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.mb_type not set!\n");
186
        if(!src->ref_index[0])
187
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.ref_index not set!\n");
188
        if(src->motion_subsample_log2 != dst->motion_subsample_log2)
189
            av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_subsample_log2 doesn't match! (%d!=%d)\n",
190
            src->motion_subsample_log2, dst->motion_subsample_log2);
191

    
192
        memcpy(dst->mb_type, src->mb_type, s->mb_stride * s->mb_height * sizeof(dst->mb_type[0]));
193

    
194
        for(i=0; i<2; i++){
195
            int stride= ((16*s->mb_width )>>src->motion_subsample_log2) + 1;
196
            int height= ((16*s->mb_height)>>src->motion_subsample_log2);
197

    
198
            if(src->motion_val[i] && src->motion_val[i] != dst->motion_val[i]){
199
                memcpy(dst->motion_val[i], src->motion_val[i], 2*stride*height*sizeof(int16_t));
200
            }
201
            if(src->ref_index[i] && src->ref_index[i] != dst->ref_index[i]){
202
                memcpy(dst->ref_index[i], src->ref_index[i], s->mb_stride*4*s->mb_height*sizeof(int8_t));
203
            }
204
        }
205
    }
206
}
207

    
208
static void update_duplicate_context_after_me(MpegEncContext *dst, MpegEncContext *src){
209
#define COPY(a) dst->a= src->a
210
    COPY(pict_type);
211
    COPY(current_picture);
212
    COPY(f_code);
213
    COPY(b_code);
214
    COPY(qscale);
215
    COPY(lambda);
216
    COPY(lambda2);
217
    COPY(picture_in_gop_number);
218
    COPY(gop_picture_number);
219
    COPY(frame_pred_frame_dct); //FIXME don't set in encode_header
220
    COPY(progressive_frame); //FIXME don't set in encode_header
221
    COPY(partitioned_frame); //FIXME don't set in encode_header
222
#undef COPY
223
}
224

    
225
/**
226
 * sets the given MpegEncContext to defaults for encoding.
227
 * the changed fields will not depend upon the prior state of the MpegEncContext.
228
 */
229
static void MPV_encode_defaults(MpegEncContext *s){
230
    int i;
231
    MPV_common_defaults(s);
232

    
233
    for(i=-16; i<16; i++){
234
        default_fcode_tab[i + MAX_MV]= 1;
235
    }
236
    s->me.mv_penalty= default_mv_penalty;
237
    s->fcode_tab= default_fcode_tab;
238
}
239

    
240
/* init video encoder */
241
av_cold int MPV_encode_init(AVCodecContext *avctx)
242
{
243
    MpegEncContext *s = avctx->priv_data;
244
    int i;
245
    int chroma_h_shift, chroma_v_shift;
246

    
247
    MPV_encode_defaults(s);
248

    
249
    switch (avctx->codec_id) {
250
    case CODEC_ID_MPEG2VIDEO:
251
        if(avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P){
252
            av_log(avctx, AV_LOG_ERROR, "only YUV420 and YUV422 are supported\n");
253
            return -1;
254
        }
255
        break;
256
    case CODEC_ID_LJPEG:
257
        if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P && avctx->pix_fmt != PIX_FMT_YUVJ444P && avctx->pix_fmt != PIX_FMT_BGRA &&
258
           ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P && avctx->pix_fmt != PIX_FMT_YUV444P) || avctx->strict_std_compliance>FF_COMPLIANCE_UNOFFICIAL)){
259
            av_log(avctx, AV_LOG_ERROR, "colorspace not supported in LJPEG\n");
260
            return -1;
261
        }
262
        break;
263
    case CODEC_ID_MJPEG:
264
        if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P &&
265
           ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P) || avctx->strict_std_compliance>FF_COMPLIANCE_UNOFFICIAL)){
266
            av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n");
267
            return -1;
268
        }
269
        break;
270
    default:
271
        if(avctx->pix_fmt != PIX_FMT_YUV420P){
272
            av_log(avctx, AV_LOG_ERROR, "only YUV420 is supported\n");
273
            return -1;
274
        }
275
    }
276

    
277
    switch (avctx->pix_fmt) {
278
    case PIX_FMT_YUVJ422P:
279
    case PIX_FMT_YUV422P:
280
        s->chroma_format = CHROMA_422;
281
        break;
282
    case PIX_FMT_YUVJ420P:
283
    case PIX_FMT_YUV420P:
284
    default:
285
        s->chroma_format = CHROMA_420;
286
        break;
287
    }
288

    
289
    s->bit_rate = avctx->bit_rate;
290
    s->width = avctx->width;
291
    s->height = avctx->height;
292
    if(avctx->gop_size > 600 && avctx->strict_std_compliance>FF_COMPLIANCE_EXPERIMENTAL){
293
        av_log(avctx, AV_LOG_ERROR, "Warning keyframe interval too large! reducing it ...\n");
294
        avctx->gop_size=600;
295
    }
296
    s->gop_size = avctx->gop_size;
297
    s->avctx = avctx;
298
    s->flags= avctx->flags;
299
    s->flags2= avctx->flags2;
300
    s->max_b_frames= avctx->max_b_frames;
301
    s->codec_id= avctx->codec->id;
302
    s->luma_elim_threshold  = avctx->luma_elim_threshold;
303
    s->chroma_elim_threshold= avctx->chroma_elim_threshold;
304
    s->strict_std_compliance= avctx->strict_std_compliance;
305
    s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
306
    s->quarter_sample= (avctx->flags & CODEC_FLAG_QPEL)!=0;
307
    s->mpeg_quant= avctx->mpeg_quant;
308
    s->rtp_mode= !!avctx->rtp_payload_size;
309
    s->intra_dc_precision= avctx->intra_dc_precision;
310
    s->user_specified_pts = AV_NOPTS_VALUE;
311

    
312
    if (s->gop_size <= 1) {
313
        s->intra_only = 1;
314
        s->gop_size = 12;
315
    } else {
316
        s->intra_only = 0;
317
    }
318

    
319
    s->me_method = avctx->me_method;
320

    
321
    /* Fixed QSCALE */
322
    s->fixed_qscale = !!(avctx->flags & CODEC_FLAG_QSCALE);
323

    
324
    s->adaptive_quant= (   s->avctx->lumi_masking
325
                        || s->avctx->dark_masking
326
                        || s->avctx->temporal_cplx_masking
327
                        || s->avctx->spatial_cplx_masking
328
                        || s->avctx->p_masking
329
                        || s->avctx->border_masking
330
                        || (s->flags&CODEC_FLAG_QP_RD))
331
                       && !s->fixed_qscale;
332

    
333
    s->obmc= !!(s->flags & CODEC_FLAG_OBMC);
334
    s->loop_filter= !!(s->flags & CODEC_FLAG_LOOP_FILTER);
335
    s->alternate_scan= !!(s->flags & CODEC_FLAG_ALT_SCAN);
336
    s->intra_vlc_format= !!(s->flags2 & CODEC_FLAG2_INTRA_VLC);
337
    s->q_scale_type= !!(s->flags2 & CODEC_FLAG2_NON_LINEAR_QUANT);
338

    
339
    if(avctx->rc_max_rate && !avctx->rc_buffer_size){
340
        av_log(avctx, AV_LOG_ERROR, "a vbv buffer size is needed, for encoding with a maximum bitrate\n");
341
        return -1;
342
    }
343

    
344
    if(avctx->rc_min_rate && avctx->rc_max_rate != avctx->rc_min_rate){
345
        av_log(avctx, AV_LOG_INFO, "Warning min_rate > 0 but min_rate != max_rate isn't recommended!\n");
346
    }
347

    
348
    if(avctx->rc_min_rate && avctx->rc_min_rate > avctx->bit_rate){
349
        av_log(avctx, AV_LOG_ERROR, "bitrate below min bitrate\n");
350
        return -1;
351
    }
352

    
353
    if(avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate){
354
        av_log(avctx, AV_LOG_INFO, "bitrate above max bitrate\n");
355
        return -1;
356
    }
357

    
358
    if(avctx->rc_max_rate && avctx->rc_max_rate == avctx->bit_rate && avctx->rc_max_rate != avctx->rc_min_rate){
359
        av_log(avctx, AV_LOG_INFO, "impossible bitrate constraints, this will fail\n");
360
    }
361

    
362
    if(avctx->rc_buffer_size && avctx->bit_rate*(int64_t)avctx->time_base.num > avctx->rc_buffer_size * (int64_t)avctx->time_base.den){
363
        av_log(avctx, AV_LOG_ERROR, "VBV buffer too small for bitrate\n");
364
        return -1;
365
    }
366

    
367
    if(!s->fixed_qscale && avctx->bit_rate*av_q2d(avctx->time_base) > avctx->bit_rate_tolerance){
368
        av_log(avctx, AV_LOG_ERROR, "bitrate tolerance too small for bitrate\n");
369
        return -1;
370
    }
371

    
372
    if(   s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate
373
       && (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO)
374
       && 90000LL * (avctx->rc_buffer_size-1) > s->avctx->rc_max_rate*0xFFFFLL){
375

    
376
        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");
377
    }
378

    
379
    if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4
380
       && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P && s->codec_id != CODEC_ID_FLV1){
381
        av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n");
382
        return -1;
383
    }
384

    
385
    if(s->obmc && s->avctx->mb_decision != FF_MB_DECISION_SIMPLE){
386
        av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with simple mb decision\n");
387
        return -1;
388
    }
389

    
390
    if(s->obmc && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P){
391
        av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with H263(+)\n");
392
        return -1;
393
    }
394

    
395
    if(s->quarter_sample && s->codec_id != CODEC_ID_MPEG4){
396
        av_log(avctx, AV_LOG_ERROR, "qpel not supported by codec\n");
397
        return -1;
398
    }
399

    
400
    if(s->data_partitioning && s->codec_id != CODEC_ID_MPEG4){
401
        av_log(avctx, AV_LOG_ERROR, "data partitioning not supported by codec\n");
402
        return -1;
403
    }
404

    
405
    if(s->max_b_frames && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO){
406
        av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n");
407
        return -1;
408
    }
409

    
410
    if ((s->codec_id == CODEC_ID_MPEG4 || s->codec_id == CODEC_ID_H263 ||
411
         s->codec_id == CODEC_ID_H263P) &&
412
        (avctx->sample_aspect_ratio.num > 255 || avctx->sample_aspect_ratio.den > 255)) {
413
        av_log(avctx, AV_LOG_ERROR, "Invalid pixel aspect ratio %i/%i, limit is 255/255\n",
414
               avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den);
415
        return -1;
416
    }
417

    
418
    if((s->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN))
419
       && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG2VIDEO){
420
        av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n");
421
        return -1;
422
    }
423

    
424
    if(s->mpeg_quant && s->codec_id != CODEC_ID_MPEG4){ //FIXME mpeg2 uses that too
425
        av_log(avctx, AV_LOG_ERROR, "mpeg2 style quantization not supported by codec\n");
426
        return -1;
427
    }
428

    
429
    if((s->flags & CODEC_FLAG_CBP_RD) && !avctx->trellis){
430
        av_log(avctx, AV_LOG_ERROR, "CBP RD needs trellis quant\n");
431
        return -1;
432
    }
433

    
434
    if((s->flags & CODEC_FLAG_QP_RD) && s->avctx->mb_decision != FF_MB_DECISION_RD){
435
        av_log(avctx, AV_LOG_ERROR, "QP RD needs mbd=2\n");
436
        return -1;
437
    }
438

    
439
    if(s->avctx->scenechange_threshold < 1000000000 && (s->flags & CODEC_FLAG_CLOSED_GOP)){
440
        av_log(avctx, AV_LOG_ERROR, "closed gop with scene change detection are not supported yet, set threshold to 1000000000\n");
441
        return -1;
442
    }
443

    
444
    if((s->flags2 & CODEC_FLAG2_INTRA_VLC) && s->codec_id != CODEC_ID_MPEG2VIDEO){
445
        av_log(avctx, AV_LOG_ERROR, "intra vlc table not supported by codec\n");
446
        return -1;
447
    }
448

    
449
    if(s->flags & CODEC_FLAG_LOW_DELAY){
450
        if (s->codec_id != CODEC_ID_MPEG2VIDEO){
451
            av_log(avctx, AV_LOG_ERROR, "low delay forcing is only available for mpeg2\n");
452
            return -1;
453
        }
454
        if (s->max_b_frames != 0){
455
            av_log(avctx, AV_LOG_ERROR, "b frames cannot be used with low delay\n");
456
            return -1;
457
        }
458
    }
459

    
460
    if(s->q_scale_type == 1){
461
        if(s->codec_id != CODEC_ID_MPEG2VIDEO){
462
            av_log(avctx, AV_LOG_ERROR, "non linear quant is only available for mpeg2\n");
463
            return -1;
464
        }
465
        if(avctx->qmax > 12){
466
            av_log(avctx, AV_LOG_ERROR, "non linear quant only supports qmax <= 12 currently\n");
467
            return -1;
468
        }
469
    }
470

    
471
    if(s->avctx->thread_count > 1 && s->codec_id != CODEC_ID_MPEG4
472
       && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO
473
       && (s->codec_id != CODEC_ID_H263P || !(s->flags & CODEC_FLAG_H263P_SLICE_STRUCT))){
474
        av_log(avctx, AV_LOG_ERROR, "multi threaded encoding not supported by codec\n");
475
        return -1;
476
    }
477

    
478
    if(s->avctx->thread_count < 1){
479
        av_log(avctx, AV_LOG_ERROR, "automatic thread number detection not supported by codec, patch welcome\n");
480
        return -1;
481
    }
482

    
483
    if(s->avctx->thread_count > 1)
484
        s->rtp_mode= 1;
485

    
486
    if(!avctx->time_base.den || !avctx->time_base.num){
487
        av_log(avctx, AV_LOG_ERROR, "framerate not set\n");
488
        return -1;
489
    }
490

    
491
    i= (INT_MAX/2+128)>>8;
492
    if(avctx->me_threshold >= i){
493
        av_log(avctx, AV_LOG_ERROR, "me_threshold too large, max is %d\n", i - 1);
494
        return -1;
495
    }
496
    if(avctx->mb_threshold >= i){
497
        av_log(avctx, AV_LOG_ERROR, "mb_threshold too large, max is %d\n", i - 1);
498
        return -1;
499
    }
500

    
501
    if(avctx->b_frame_strategy && (avctx->flags&CODEC_FLAG_PASS2)){
502
        av_log(avctx, AV_LOG_INFO, "notice: b_frame_strategy only affects the first pass\n");
503
        avctx->b_frame_strategy = 0;
504
    }
505

    
506
    i= av_gcd(avctx->time_base.den, avctx->time_base.num);
507
    if(i > 1){
508
        av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n");
509
        avctx->time_base.den /= i;
510
        avctx->time_base.num /= i;
511
//        return -1;
512
    }
513

    
514
    if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO || s->codec_id==CODEC_ID_MJPEG){
515
        s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x
516
        s->inter_quant_bias= 0;
517
    }else{
518
        s->intra_quant_bias=0;
519
        s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x
520
    }
521

    
522
    if(avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
523
        s->intra_quant_bias= avctx->intra_quant_bias;
524
    if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)
525
        s->inter_quant_bias= avctx->inter_quant_bias;
526

    
527
    avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift);
528

    
529
    if(avctx->codec_id == CODEC_ID_MPEG4 && s->avctx->time_base.den > (1<<16)-1){
530
        av_log(avctx, AV_LOG_ERROR, "timebase %d/%d not supported by MPEG 4 standard, "
531
               "the maximum admitted value for the timebase denominator is %d\n",
532
               s->avctx->time_base.num, s->avctx->time_base.den, (1<<16)-1);
533
        return -1;
534
    }
535
    s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1;
536

    
537
    switch(avctx->codec->id) {
538
    case CODEC_ID_MPEG1VIDEO:
539
        s->out_format = FMT_MPEG1;
540
        s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
541
        avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
542
        break;
543
    case CODEC_ID_MPEG2VIDEO:
544
        s->out_format = FMT_MPEG1;
545
        s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
546
        avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
547
        s->rtp_mode= 1;
548
        break;
549
    case CODEC_ID_LJPEG:
550
    case CODEC_ID_MJPEG:
551
        s->out_format = FMT_MJPEG;
552
        s->intra_only = 1; /* force intra only for jpeg */
553
        if(avctx->codec->id == CODEC_ID_LJPEG && avctx->pix_fmt == PIX_FMT_BGRA){
554
            s->mjpeg_vsample[0] = s->mjpeg_hsample[0] =
555
            s->mjpeg_vsample[1] = s->mjpeg_hsample[1] =
556
            s->mjpeg_vsample[2] = s->mjpeg_hsample[2] = 1;
557
        }else{
558
            s->mjpeg_vsample[0] = 2;
559
            s->mjpeg_vsample[1] = 2>>chroma_v_shift;
560
            s->mjpeg_vsample[2] = 2>>chroma_v_shift;
561
            s->mjpeg_hsample[0] = 2;
562
            s->mjpeg_hsample[1] = 2>>chroma_h_shift;
563
            s->mjpeg_hsample[2] = 2>>chroma_h_shift;
564
        }
565
        if (!(CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER)
566
            || ff_mjpeg_encode_init(s) < 0)
567
            return -1;
568
        avctx->delay=0;
569
        s->low_delay=1;
570
        break;
571
    case CODEC_ID_H261:
572
        if (!CONFIG_H261_ENCODER)  return -1;
573
        if (ff_h261_get_picture_format(s->width, s->height) < 0) {
574
            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);
575
            return -1;
576
        }
577
        s->out_format = FMT_H261;
578
        avctx->delay=0;
579
        s->low_delay=1;
580
        break;
581
    case CODEC_ID_H263:
582
        if (!CONFIG_H263_ENCODER)  return -1;
583
        if (ff_match_2uint16(h263_format, FF_ARRAY_ELEMS(h263_format), s->width, s->height) == 8) {
584
            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);
585
            return -1;
586
        }
587
        s->out_format = FMT_H263;
588
        s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
589
        avctx->delay=0;
590
        s->low_delay=1;
591
        break;
592
    case CODEC_ID_H263P:
593
        s->out_format = FMT_H263;
594
        s->h263_plus = 1;
595
        /* Fx */
596
        s->umvplus = (avctx->flags & CODEC_FLAG_H263P_UMV) ? 1:0;
597
        s->h263_aic= (avctx->flags & CODEC_FLAG_AC_PRED) ? 1:0;
598
        s->modified_quant= s->h263_aic;
599
        s->alt_inter_vlc= (avctx->flags & CODEC_FLAG_H263P_AIV) ? 1:0;
600
        s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
601
        s->loop_filter= (avctx->flags & CODEC_FLAG_LOOP_FILTER) ? 1:0;
602
        s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
603
        s->h263_slice_structured= (s->flags & CODEC_FLAG_H263P_SLICE_STRUCT) ? 1:0;
604

    
605
        /* /Fx */
606
        /* These are just to be sure */
607
        avctx->delay=0;
608
        s->low_delay=1;
609
        break;
610
    case CODEC_ID_FLV1:
611
        s->out_format = FMT_H263;
612
        s->h263_flv = 2; /* format = 1; 11-bit codes */
613
        s->unrestricted_mv = 1;
614
        s->rtp_mode=0; /* don't allow GOB */
615
        avctx->delay=0;
616
        s->low_delay=1;
617
        break;
618
    case CODEC_ID_RV10:
619
        s->out_format = FMT_H263;
620
        avctx->delay=0;
621
        s->low_delay=1;
622
        break;
623
    case CODEC_ID_RV20:
624
        s->out_format = FMT_H263;
625
        avctx->delay=0;
626
        s->low_delay=1;
627
        s->modified_quant=1;
628
        s->h263_aic=1;
629
        s->h263_plus=1;
630
        s->loop_filter=1;
631
        s->unrestricted_mv= 0;
632
        break;
633
    case CODEC_ID_MPEG4:
634
        s->out_format = FMT_H263;
635
        s->h263_pred = 1;
636
        s->unrestricted_mv = 1;
637
        s->low_delay= s->max_b_frames ? 0 : 1;
638
        avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
639
        break;
640
    case CODEC_ID_MSMPEG4V1:
641
        s->out_format = FMT_H263;
642
        s->h263_msmpeg4 = 1;
643
        s->h263_pred = 1;
644
        s->unrestricted_mv = 1;
645
        s->msmpeg4_version= 1;
646
        avctx->delay=0;
647
        s->low_delay=1;
648
        break;
649
    case CODEC_ID_MSMPEG4V2:
650
        s->out_format = FMT_H263;
651
        s->h263_msmpeg4 = 1;
652
        s->h263_pred = 1;
653
        s->unrestricted_mv = 1;
654
        s->msmpeg4_version= 2;
655
        avctx->delay=0;
656
        s->low_delay=1;
657
        break;
658
    case CODEC_ID_MSMPEG4V3:
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= 3;
664
        s->flipflop_rounding=1;
665
        avctx->delay=0;
666
        s->low_delay=1;
667
        break;
668
    case CODEC_ID_WMV1:
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= 4;
674
        s->flipflop_rounding=1;
675
        avctx->delay=0;
676
        s->low_delay=1;
677
        break;
678
    case CODEC_ID_WMV2:
679
        s->out_format = FMT_H263;
680
        s->h263_msmpeg4 = 1;
681
        s->h263_pred = 1;
682
        s->unrestricted_mv = 1;
683
        s->msmpeg4_version= 5;
684
        s->flipflop_rounding=1;
685
        avctx->delay=0;
686
        s->low_delay=1;
687
        break;
688
    default:
689
        return -1;
690
    }
691

    
692
    avctx->has_b_frames= !s->low_delay;
693

    
694
    s->encoding = 1;
695

    
696
    s->progressive_frame=
697
    s->progressive_sequence= !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN));
698

    
699
    /* init */
700
    if (MPV_common_init(s) < 0)
701
        return -1;
702

    
703
    if(!s->dct_quantize)
704
        s->dct_quantize = dct_quantize_c;
705
    if(!s->denoise_dct)
706
        s->denoise_dct = denoise_dct_c;
707
    s->fast_dct_quantize = s->dct_quantize;
708
    if(avctx->trellis)
709
        s->dct_quantize = dct_quantize_trellis_c;
710

    
711
    if((CONFIG_H263P_ENCODER || CONFIG_RV20_ENCODER) && s->modified_quant)
712
        s->chroma_qscale_table= ff_h263_chroma_qscale_table;
713

    
714
    s->quant_precision=5;
715

    
716
    ff_set_cmp(&s->dsp, s->dsp.ildct_cmp, s->avctx->ildct_cmp);
717
    ff_set_cmp(&s->dsp, s->dsp.frame_skip_cmp, s->avctx->frame_skip_cmp);
718

    
719
    if (CONFIG_H261_ENCODER && s->out_format == FMT_H261)
720
        ff_h261_encode_init(s);
721
    if (CONFIG_H263_ENCODER && s->out_format == FMT_H263)
722
        h263_encode_init(s);
723
    if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version)
724
        ff_msmpeg4_encode_init(s);
725
    if ((CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
726
        && s->out_format == FMT_MPEG1)
727
        ff_mpeg1_encode_init(s);
728

    
729
    /* init q matrix */
730
    for(i=0;i<64;i++) {
731
        int j= s->dsp.idct_permutation[i];
732
        if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){
733
            s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
734
            s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
735
        }else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){
736
            s->intra_matrix[j] =
737
            s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
738
        }else
739
        { /* mpeg1/2 */
740
            s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
741
            s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
742
        }
743
        if(s->avctx->intra_matrix)
744
            s->intra_matrix[j] = s->avctx->intra_matrix[i];
745
        if(s->avctx->inter_matrix)
746
            s->inter_matrix[j] = s->avctx->inter_matrix[i];
747
    }
748

    
749
    /* precompute matrix */
750
    /* for mjpeg, we do include qscale in the matrix */
751
    if (s->out_format != FMT_MJPEG) {
752
        ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
753
                       s->intra_matrix, s->intra_quant_bias, avctx->qmin, 31, 1);
754
        ff_convert_matrix(&s->dsp, s->q_inter_matrix, s->q_inter_matrix16,
755
                       s->inter_matrix, s->inter_quant_bias, avctx->qmin, 31, 0);
756
    }
757

    
758
    if(ff_rate_control_init(s) < 0)
759
        return -1;
760

    
761
    return 0;
762
}
763

    
764
av_cold int MPV_encode_end(AVCodecContext *avctx)
765
{
766
    MpegEncContext *s = avctx->priv_data;
767

    
768
    ff_rate_control_uninit(s);
769

    
770
    MPV_common_end(s);
771
    if ((CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER) && s->out_format == FMT_MJPEG)
772
        ff_mjpeg_encode_close(s);
773

    
774
    av_freep(&avctx->extradata);
775

    
776
    return 0;
777
}
778

    
779
static int get_sae(uint8_t *src, int ref, int stride){
780
    int x,y;
781
    int acc=0;
782

    
783
    for(y=0; y<16; y++){
784
        for(x=0; x<16; x++){
785
            acc+= FFABS(src[x+y*stride] - ref);
786
        }
787
    }
788

    
789
    return acc;
790
}
791

    
792
static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride){
793
    int x, y, w, h;
794
    int acc=0;
795

    
796
    w= s->width &~15;
797
    h= s->height&~15;
798

    
799
    for(y=0; y<h; y+=16){
800
        for(x=0; x<w; x+=16){
801
            int offset= x + y*stride;
802
            int sad = s->dsp.sad[0](NULL, src + offset, ref + offset, stride, 16);
803
            int mean= (s->dsp.pix_sum(src + offset, stride) + 128)>>8;
804
            int sae = get_sae(src + offset, mean, stride);
805

    
806
            acc+= sae + 500 < sad;
807
        }
808
    }
809
    return acc;
810
}
811

    
812

    
813
static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
814
    AVFrame *pic=NULL;
815
    int64_t pts;
816
    int i;
817
    const int encoding_delay= s->max_b_frames;
818
    int direct=1;
819

    
820
    if(pic_arg){
821
        pts= pic_arg->pts;
822
        pic_arg->display_picture_number= s->input_picture_number++;
823

    
824
        if(pts != AV_NOPTS_VALUE){
825
            if(s->user_specified_pts != AV_NOPTS_VALUE){
826
                int64_t time= pts;
827
                int64_t last= s->user_specified_pts;
828

    
829
                if(time <= last){
830
                    av_log(s->avctx, AV_LOG_ERROR, "Error, Invalid timestamp=%"PRId64", last=%"PRId64"\n", pts, s->user_specified_pts);
831
                    return -1;
832
                }
833
            }
834
            s->user_specified_pts= pts;
835
        }else{
836
            if(s->user_specified_pts != AV_NOPTS_VALUE){
837
                s->user_specified_pts=
838
                pts= s->user_specified_pts + 1;
839
                av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%"PRId64")\n", pts);
840
            }else{
841
                pts= pic_arg->display_picture_number;
842
            }
843
        }
844
    }
845

    
846
  if(pic_arg){
847
    if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0;
848
    if(pic_arg->linesize[0] != s->linesize) direct=0;
849
    if(pic_arg->linesize[1] != s->uvlinesize) direct=0;
850
    if(pic_arg->linesize[2] != s->uvlinesize) direct=0;
851

    
852
//    av_log(AV_LOG_DEBUG, "%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize);
853

    
854
    if(direct){
855
        i= ff_find_unused_picture(s, 1);
856

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

    
860
        for(i=0; i<4; i++){
861
            pic->data[i]= pic_arg->data[i];
862
            pic->linesize[i]= pic_arg->linesize[i];
863
        }
864
        if(ff_alloc_picture(s, (Picture*)pic, 1) < 0){
865
            return -1;
866
        }
867
    }else{
868
        i= ff_find_unused_picture(s, 0);
869

    
870
        pic= (AVFrame*)&s->picture[i];
871
        pic->reference= 3;
872

    
873
        if(ff_alloc_picture(s, (Picture*)pic, 0) < 0){
874
            return -1;
875
        }
876

    
877
        if(   pic->data[0] + INPLACE_OFFSET == pic_arg->data[0]
878
           && pic->data[1] + INPLACE_OFFSET == pic_arg->data[1]
879
           && pic->data[2] + INPLACE_OFFSET == pic_arg->data[2]){
880
       // empty
881
        }else{
882
            int h_chroma_shift, v_chroma_shift;
883
            avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
884

    
885
            for(i=0; i<3; i++){
886
                int src_stride= pic_arg->linesize[i];
887
                int dst_stride= i ? s->uvlinesize : s->linesize;
888
                int h_shift= i ? h_chroma_shift : 0;
889
                int v_shift= i ? v_chroma_shift : 0;
890
                int w= s->width >>h_shift;
891
                int h= s->height>>v_shift;
892
                uint8_t *src= pic_arg->data[i];
893
                uint8_t *dst= pic->data[i];
894

    
895
                if(!s->avctx->rc_buffer_size)
896
                    dst +=INPLACE_OFFSET;
897

    
898
                if(src_stride==dst_stride)
899
                    memcpy(dst, src, src_stride*h);
900
                else{
901
                    while(h--){
902
                        memcpy(dst, src, w);
903
                        dst += dst_stride;
904
                        src += src_stride;
905
                    }
906
                }
907
            }
908
        }
909
    }
910
    copy_picture_attributes(s, pic, pic_arg);
911
    pic->pts= pts; //we set this here to avoid modifiying pic_arg
912
  }
913

    
914
    /* shift buffer entries */
915
    for(i=1; i<MAX_PICTURE_COUNT /*s->encoding_delay+1*/; i++)
916
        s->input_picture[i-1]= s->input_picture[i];
917

    
918
    s->input_picture[encoding_delay]= (Picture*)pic;
919

    
920
    return 0;
921
}
922

    
923
static int skip_check(MpegEncContext *s, Picture *p, Picture *ref){
924
    int x, y, plane;
925
    int score=0;
926
    int64_t score64=0;
927

    
928
    for(plane=0; plane<3; plane++){
929
        const int stride= p->linesize[plane];
930
        const int bw= plane ? 1 : 2;
931
        for(y=0; y<s->mb_height*bw; y++){
932
            for(x=0; x<s->mb_width*bw; x++){
933
                int off= p->type == FF_BUFFER_TYPE_SHARED ? 0: 16;
934
                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);
935

    
936
                switch(s->avctx->frame_skip_exp){
937
                    case 0: score= FFMAX(score, v); break;
938
                    case 1: score+= FFABS(v);break;
939
                    case 2: score+= v*v;break;
940
                    case 3: score64+= FFABS(v*v*(int64_t)v);break;
941
                    case 4: score64+= v*v*(int64_t)(v*v);break;
942
                }
943
            }
944
        }
945
    }
946

    
947
    if(score) score64= score;
948

    
949
    if(score64 < s->avctx->frame_skip_threshold)
950
        return 1;
951
    if(score64 < ((s->avctx->frame_skip_factor * (int64_t)s->lambda)>>8))
952
        return 1;
953
    return 0;
954
}
955

    
956
static int estimate_best_b_count(MpegEncContext *s){
957
    AVCodec *codec= avcodec_find_encoder(s->avctx->codec_id);
958
    AVCodecContext *c= avcodec_alloc_context();
959
    AVFrame input[FF_MAX_B_FRAMES+2];
960
    const int scale= s->avctx->brd_scale;
961
    int i, j, out_size, p_lambda, b_lambda, lambda2;
962
    int outbuf_size= s->width * s->height; //FIXME
963
    uint8_t *outbuf= av_malloc(outbuf_size);
964
    int64_t best_rd= INT64_MAX;
965
    int best_b_count= -1;
966

    
967
    assert(scale>=0 && scale <=3);
968

    
969
//    emms_c();
970
    p_lambda= s->last_lambda_for[FF_P_TYPE]; //s->next_picture_ptr->quality;
971
    b_lambda= s->last_lambda_for[FF_B_TYPE]; //p_lambda *FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset;
972
    if(!b_lambda) b_lambda= p_lambda; //FIXME we should do this somewhere else
973
    lambda2= (b_lambda*b_lambda + (1<<FF_LAMBDA_SHIFT)/2 ) >> FF_LAMBDA_SHIFT;
974

    
975
    c->width = s->width >> scale;
976
    c->height= s->height>> scale;
977
    c->flags= CODEC_FLAG_QSCALE | CODEC_FLAG_PSNR | CODEC_FLAG_INPUT_PRESERVED /*| CODEC_FLAG_EMU_EDGE*/;
978
    c->flags|= s->avctx->flags & CODEC_FLAG_QPEL;
979
    c->mb_decision= s->avctx->mb_decision;
980
    c->me_cmp= s->avctx->me_cmp;
981
    c->mb_cmp= s->avctx->mb_cmp;
982
    c->me_sub_cmp= s->avctx->me_sub_cmp;
983
    c->pix_fmt = PIX_FMT_YUV420P;
984
    c->time_base= s->avctx->time_base;
985
    c->max_b_frames= s->max_b_frames;
986

    
987
    if (avcodec_open(c, codec) < 0)
988
        return -1;
989

    
990
    for(i=0; i<s->max_b_frames+2; i++){
991
        int ysize= c->width*c->height;
992
        int csize= (c->width/2)*(c->height/2);
993
        Picture pre_input, *pre_input_ptr= i ? s->input_picture[i-1] : s->next_picture_ptr;
994

    
995
        avcodec_get_frame_defaults(&input[i]);
996
        input[i].data[0]= av_malloc(ysize + 2*csize);
997
        input[i].data[1]= input[i].data[0] + ysize;
998
        input[i].data[2]= input[i].data[1] + csize;
999
        input[i].linesize[0]= c->width;
1000
        input[i].linesize[1]=
1001
        input[i].linesize[2]= c->width/2;
1002

    
1003
        if(pre_input_ptr && (!i || s->input_picture[i-1])) {
1004
            pre_input= *pre_input_ptr;
1005

    
1006
            if(pre_input.type != FF_BUFFER_TYPE_SHARED && i) {
1007
                pre_input.data[0]+=INPLACE_OFFSET;
1008
                pre_input.data[1]+=INPLACE_OFFSET;
1009
                pre_input.data[2]+=INPLACE_OFFSET;
1010
            }
1011

    
1012
            s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0], pre_input.data[0], pre_input.linesize[0], c->width, c->height);
1013
            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);
1014
            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);
1015
        }
1016
    }
1017

    
1018
    for(j=0; j<s->max_b_frames+1; j++){
1019
        int64_t rd=0;
1020

    
1021
        if(!s->input_picture[j])
1022
            break;
1023

    
1024
        c->error[0]= c->error[1]= c->error[2]= 0;
1025

    
1026
        input[0].pict_type= FF_I_TYPE;
1027
        input[0].quality= 1 * FF_QP2LAMBDA;
1028
        out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[0]);
1029
//        rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT;
1030

    
1031
        for(i=0; i<s->max_b_frames+1; i++){
1032
            int is_p= i % (j+1) == j || i==s->max_b_frames;
1033

    
1034
            input[i+1].pict_type= is_p ? FF_P_TYPE : FF_B_TYPE;
1035
            input[i+1].quality= is_p ? p_lambda : b_lambda;
1036
            out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[i+1]);
1037
            rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1038
        }
1039

    
1040
        /* get the delayed frames */
1041
        while(out_size){
1042
            out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);
1043
            rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1044
        }
1045

    
1046
        rd += c->error[0] + c->error[1] + c->error[2];
1047

    
1048
        if(rd < best_rd){
1049
            best_rd= rd;
1050
            best_b_count= j;
1051
        }
1052
    }
1053

    
1054
    av_freep(&outbuf);
1055
    avcodec_close(c);
1056
    av_freep(&c);
1057

    
1058
    for(i=0; i<s->max_b_frames+2; i++){
1059
        av_freep(&input[i].data[0]);
1060
    }
1061

    
1062
    return best_b_count;
1063
}
1064

    
1065
static int select_input_picture(MpegEncContext *s){
1066
    int i;
1067

    
1068
    for(i=1; i<MAX_PICTURE_COUNT; i++)
1069
        s->reordered_input_picture[i-1]= s->reordered_input_picture[i];
1070
    s->reordered_input_picture[MAX_PICTURE_COUNT-1]= NULL;
1071

    
1072
    /* set next picture type & ordering */
1073
    if(s->reordered_input_picture[0]==NULL && s->input_picture[0]){
1074
        if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture_ptr==NULL || s->intra_only){
1075
            s->reordered_input_picture[0]= s->input_picture[0];
1076
            s->reordered_input_picture[0]->pict_type= FF_I_TYPE;
1077
            s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1078
        }else{
1079
            int b_frames;
1080

    
1081
            if(s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor){
1082
                if(s->picture_in_gop_number < s->gop_size && skip_check(s, s->input_picture[0], s->next_picture_ptr)){
1083
                //FIXME check that te gop check above is +-1 correct
1084
//av_log(NULL, AV_LOG_DEBUG, "skip %p %"PRId64"\n", s->input_picture[0]->data[0], s->input_picture[0]->pts);
1085

    
1086
                    if(s->input_picture[0]->type == FF_BUFFER_TYPE_SHARED){
1087
                        for(i=0; i<4; i++)
1088
                            s->input_picture[0]->data[i]= NULL;
1089
                        s->input_picture[0]->type= 0;
1090
                    }else{
1091
                        assert(   s->input_picture[0]->type==FF_BUFFER_TYPE_USER
1092
                               || s->input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1093

    
1094
                        s->avctx->release_buffer(s->avctx, (AVFrame*)s->input_picture[0]);
1095
                    }
1096

    
1097
                    emms_c();
1098
                    ff_vbv_update(s, 0);
1099

    
1100
                    goto no_output_pic;
1101
                }
1102
            }
1103

    
1104
            if(s->flags&CODEC_FLAG_PASS2){
1105
                for(i=0; i<s->max_b_frames+1; i++){
1106
                    int pict_num= s->input_picture[0]->display_picture_number + i;
1107

    
1108
                    if(pict_num >= s->rc_context.num_entries)
1109
                        break;
1110
                    if(!s->input_picture[i]){
1111
                        s->rc_context.entry[pict_num-1].new_pict_type = FF_P_TYPE;
1112
                        break;
1113
                    }
1114

    
1115
                    s->input_picture[i]->pict_type=
1116
                        s->rc_context.entry[pict_num].new_pict_type;
1117
                }
1118
            }
1119

    
1120
            if(s->avctx->b_frame_strategy==0){
1121
                b_frames= s->max_b_frames;
1122
                while(b_frames && !s->input_picture[b_frames]) b_frames--;
1123
            }else if(s->avctx->b_frame_strategy==1){
1124
                for(i=1; i<s->max_b_frames+1; i++){
1125
                    if(s->input_picture[i] && s->input_picture[i]->b_frame_score==0){
1126
                        s->input_picture[i]->b_frame_score=
1127
                            get_intra_count(s, s->input_picture[i  ]->data[0],
1128
                                               s->input_picture[i-1]->data[0], s->linesize) + 1;
1129
                    }
1130
                }
1131
                for(i=0; i<s->max_b_frames+1; i++){
1132
                    if(s->input_picture[i]==NULL || s->input_picture[i]->b_frame_score - 1 > s->mb_num/s->avctx->b_sensitivity) break;
1133
                }
1134

    
1135
                b_frames= FFMAX(0, i-1);
1136

    
1137
                /* reset scores */
1138
                for(i=0; i<b_frames+1; i++){
1139
                    s->input_picture[i]->b_frame_score=0;
1140
                }
1141
            }else if(s->avctx->b_frame_strategy==2){
1142
                b_frames= estimate_best_b_count(s);
1143
            }else{
1144
                av_log(s->avctx, AV_LOG_ERROR, "illegal b frame strategy\n");
1145
                b_frames=0;
1146
            }
1147

    
1148
            emms_c();
1149
//static int b_count=0;
1150
//b_count+= b_frames;
1151
//av_log(s->avctx, AV_LOG_DEBUG, "b_frames: %d\n", b_count);
1152

    
1153
            for(i= b_frames - 1; i>=0; i--){
1154
                int type= s->input_picture[i]->pict_type;
1155
                if(type && type != FF_B_TYPE)
1156
                    b_frames= i;
1157
            }
1158
            if(s->input_picture[b_frames]->pict_type == FF_B_TYPE && b_frames == s->max_b_frames){
1159
                av_log(s->avctx, AV_LOG_ERROR, "warning, too many b frames in a row\n");
1160
            }
1161

    
1162
            if(s->picture_in_gop_number + b_frames >= s->gop_size){
1163
              if((s->flags2 & CODEC_FLAG2_STRICT_GOP) && s->gop_size > s->picture_in_gop_number){
1164
                    b_frames= s->gop_size - s->picture_in_gop_number - 1;
1165
              }else{
1166
                if(s->flags & CODEC_FLAG_CLOSED_GOP)
1167
                    b_frames=0;
1168
                s->input_picture[b_frames]->pict_type= FF_I_TYPE;
1169
              }
1170
            }
1171

    
1172
            if(   (s->flags & CODEC_FLAG_CLOSED_GOP)
1173
               && b_frames
1174
               && s->input_picture[b_frames]->pict_type== FF_I_TYPE)
1175
                b_frames--;
1176

    
1177
            s->reordered_input_picture[0]= s->input_picture[b_frames];
1178
            if(s->reordered_input_picture[0]->pict_type != FF_I_TYPE)
1179
                s->reordered_input_picture[0]->pict_type= FF_P_TYPE;
1180
            s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1181
            for(i=0; i<b_frames; i++){
1182
                s->reordered_input_picture[i+1]= s->input_picture[i];
1183
                s->reordered_input_picture[i+1]->pict_type= FF_B_TYPE;
1184
                s->reordered_input_picture[i+1]->coded_picture_number= s->coded_picture_number++;
1185
            }
1186
        }
1187
    }
1188
no_output_pic:
1189
    if(s->reordered_input_picture[0]){
1190
        s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=FF_B_TYPE ? 3 : 0;
1191

    
1192
        ff_copy_picture(&s->new_picture, s->reordered_input_picture[0]);
1193

    
1194
        if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_SHARED || s->avctx->rc_buffer_size){
1195
            // input is a shared pix, so we can't modifiy it -> alloc a new one & ensure that the shared one is reuseable
1196

    
1197
            int i= ff_find_unused_picture(s, 0);
1198
            Picture *pic= &s->picture[i];
1199

    
1200
            pic->reference              = s->reordered_input_picture[0]->reference;
1201
            if(ff_alloc_picture(s, pic, 0) < 0){
1202
                return -1;
1203
            }
1204

    
1205
            /* mark us unused / free shared pic */
1206
            if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_INTERNAL)
1207
                s->avctx->release_buffer(s->avctx, (AVFrame*)s->reordered_input_picture[0]);
1208
            for(i=0; i<4; i++)
1209
                s->reordered_input_picture[0]->data[i]= NULL;
1210
            s->reordered_input_picture[0]->type= 0;
1211

    
1212
            copy_picture_attributes(s, (AVFrame*)pic, (AVFrame*)s->reordered_input_picture[0]);
1213

    
1214
            s->current_picture_ptr= pic;
1215
        }else{
1216
            // input is not a shared pix -> reuse buffer for current_pix
1217

    
1218
            assert(   s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
1219
                   || s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1220

    
1221
            s->current_picture_ptr= s->reordered_input_picture[0];
1222
            for(i=0; i<4; i++){
1223
                s->new_picture.data[i]+= INPLACE_OFFSET;
1224
            }
1225
        }
1226
        ff_copy_picture(&s->current_picture, s->current_picture_ptr);
1227

    
1228
        s->picture_number= s->new_picture.display_picture_number;
1229
//printf("dpn:%d\n", s->picture_number);
1230
    }else{
1231
       memset(&s->new_picture, 0, sizeof(Picture));
1232
    }
1233
    return 0;
1234
}
1235

    
1236
int MPV_encode_picture(AVCodecContext *avctx,
1237
                       unsigned char *buf, int buf_size, void *data)
1238
{
1239
    MpegEncContext *s = avctx->priv_data;
1240
    AVFrame *pic_arg = data;
1241
    int i, stuffing_count;
1242

    
1243
    for(i=0; i<avctx->thread_count; i++){
1244
        int start_y= s->thread_context[i]->start_mb_y;
1245
        int   end_y= s->thread_context[i]->  end_mb_y;
1246
        int h= s->mb_height;
1247
        uint8_t *start= buf + (size_t)(((int64_t) buf_size)*start_y/h);
1248
        uint8_t *end  = buf + (size_t)(((int64_t) buf_size)*  end_y/h);
1249

    
1250
        init_put_bits(&s->thread_context[i]->pb, start, end - start);
1251
    }
1252

    
1253
    s->picture_in_gop_number++;
1254

    
1255
    if(load_input_picture(s, pic_arg) < 0)
1256
        return -1;
1257

    
1258
    if(select_input_picture(s) < 0){
1259
        return -1;
1260
    }
1261

    
1262
    /* output? */
1263
    if(s->new_picture.data[0]){
1264
        s->pict_type= s->new_picture.pict_type;
1265
//emms_c();
1266
//printf("qs:%f %f %d\n", s->new_picture.quality, s->current_picture.quality, s->qscale);
1267
        MPV_frame_start(s, avctx);
1268
vbv_retry:
1269
        if (encode_picture(s, s->picture_number) < 0)
1270
            return -1;
1271

    
1272
        avctx->header_bits = s->header_bits;
1273
        avctx->mv_bits     = s->mv_bits;
1274
        avctx->misc_bits   = s->misc_bits;
1275
        avctx->i_tex_bits  = s->i_tex_bits;
1276
        avctx->p_tex_bits  = s->p_tex_bits;
1277
        avctx->i_count     = s->i_count;
1278
        avctx->p_count     = s->mb_num - s->i_count - s->skip_count; //FIXME f/b_count in avctx
1279
        avctx->skip_count  = s->skip_count;
1280

    
1281
        MPV_frame_end(s);
1282

    
1283
        if (CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG)
1284
            ff_mjpeg_encode_picture_trailer(s);
1285

    
1286
        if(avctx->rc_buffer_size){
1287
            RateControlContext *rcc= &s->rc_context;
1288
            int max_size= rcc->buffer_index * avctx->rc_max_available_vbv_use;
1289

    
1290
            if(put_bits_count(&s->pb) > max_size && s->lambda < s->avctx->lmax){
1291
                s->next_lambda= FFMAX(s->lambda+1, s->lambda*(s->qscale+1) / s->qscale);
1292
                if(s->adaptive_quant){
1293
                    int i;
1294
                    for(i=0; i<s->mb_height*s->mb_stride; i++)
1295
                        s->lambda_table[i]= FFMAX(s->lambda_table[i]+1, s->lambda_table[i]*(s->qscale+1) / s->qscale);
1296
                }
1297
                s->mb_skipped = 0;        //done in MPV_frame_start()
1298
                if(s->pict_type==FF_P_TYPE){ //done in encode_picture() so we must undo it
1299
                    if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
1300
                        s->no_rounding ^= 1;
1301
                }
1302
                if(s->pict_type!=FF_B_TYPE){
1303
                    s->time_base= s->last_time_base;
1304
                    s->last_non_b_time= s->time - s->pp_time;
1305
                }
1306
//                av_log(NULL, AV_LOG_ERROR, "R:%d ", s->next_lambda);
1307
                for(i=0; i<avctx->thread_count; i++){
1308
                    PutBitContext *pb= &s->thread_context[i]->pb;
1309
                    init_put_bits(pb, pb->buf, pb->buf_end - pb->buf);
1310
                }
1311
                goto vbv_retry;
1312
            }
1313

    
1314
            assert(s->avctx->rc_max_rate);
1315
        }
1316

    
1317
        if(s->flags&CODEC_FLAG_PASS1)
1318
            ff_write_pass1_stats(s);
1319

    
1320
        for(i=0; i<4; i++){
1321
            s->current_picture_ptr->error[i]= s->current_picture.error[i];
1322
            avctx->error[i] += s->current_picture_ptr->error[i];
1323
        }
1324

    
1325
        if(s->flags&CODEC_FLAG_PASS1)
1326
            assert(avctx->header_bits + avctx->mv_bits + avctx->misc_bits + avctx->i_tex_bits + avctx->p_tex_bits == put_bits_count(&s->pb));
1327
        flush_put_bits(&s->pb);
1328
        s->frame_bits  = put_bits_count(&s->pb);
1329

    
1330
        stuffing_count= ff_vbv_update(s, s->frame_bits);
1331
        if(stuffing_count){
1332
            if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < stuffing_count + 50){
1333
                av_log(s->avctx, AV_LOG_ERROR, "stuffing too large\n");
1334
                return -1;
1335
            }
1336

    
1337
            switch(s->codec_id){
1338
            case CODEC_ID_MPEG1VIDEO:
1339
            case CODEC_ID_MPEG2VIDEO:
1340
                while(stuffing_count--){
1341
                    put_bits(&s->pb, 8, 0);
1342
                }
1343
            break;
1344
            case CODEC_ID_MPEG4:
1345
                put_bits(&s->pb, 16, 0);
1346
                put_bits(&s->pb, 16, 0x1C3);
1347
                stuffing_count -= 4;
1348
                while(stuffing_count--){
1349
                    put_bits(&s->pb, 8, 0xFF);
1350
                }
1351
            break;
1352
            default:
1353
                av_log(s->avctx, AV_LOG_ERROR, "vbv buffer overflow\n");
1354
            }
1355
            flush_put_bits(&s->pb);
1356
            s->frame_bits  = put_bits_count(&s->pb);
1357
        }
1358

    
1359
        /* update mpeg1/2 vbv_delay for CBR */
1360
        if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && s->out_format == FMT_MPEG1
1361
           && 90000LL * (avctx->rc_buffer_size-1) <= s->avctx->rc_max_rate*0xFFFFLL){
1362
            int vbv_delay, min_delay;
1363
            double inbits = s->avctx->rc_max_rate*av_q2d(s->avctx->time_base);
1364
            int    minbits= s->frame_bits - 8*(s->vbv_delay_ptr - s->pb.buf - 1);
1365
            double bits   = s->rc_context.buffer_index + minbits - inbits;
1366

    
1367
            if(bits<0)
1368
                av_log(s->avctx, AV_LOG_ERROR, "Internal error, negative bits\n");
1369

    
1370
            assert(s->repeat_first_field==0);
1371

    
1372
            vbv_delay=     bits * 90000                               / s->avctx->rc_max_rate;
1373
            min_delay= (minbits * 90000LL + s->avctx->rc_max_rate - 1)/ s->avctx->rc_max_rate;
1374

    
1375
            vbv_delay= FFMAX(vbv_delay, min_delay);
1376

    
1377
            assert(vbv_delay < 0xFFFF);
1378

    
1379
            s->vbv_delay_ptr[0] &= 0xF8;
1380
            s->vbv_delay_ptr[0] |= vbv_delay>>13;
1381
            s->vbv_delay_ptr[1]  = vbv_delay>>5;
1382
            s->vbv_delay_ptr[2] &= 0x07;
1383
            s->vbv_delay_ptr[2] |= vbv_delay<<3;
1384
            avctx->vbv_delay = vbv_delay*300;
1385
        }
1386
        s->total_bits += s->frame_bits;
1387
        avctx->frame_bits  = s->frame_bits;
1388
    }else{
1389
        assert((put_bits_ptr(&s->pb) == s->pb.buf));
1390
        s->frame_bits=0;
1391
    }
1392
    assert((s->frame_bits&7)==0);
1393

    
1394
    return s->frame_bits/8;
1395
}
1396

    
1397
static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold)
1398
{
1399
    static const char tab[64]=
1400
        {3,2,2,1,1,1,1,1,
1401
         1,1,1,1,1,1,1,1,
1402
         1,1,1,1,1,1,1,1,
1403
         0,0,0,0,0,0,0,0,
1404
         0,0,0,0,0,0,0,0,
1405
         0,0,0,0,0,0,0,0,
1406
         0,0,0,0,0,0,0,0,
1407
         0,0,0,0,0,0,0,0};
1408
    int score=0;
1409
    int run=0;
1410
    int i;
1411
    DCTELEM *block= s->block[n];
1412
    const int last_index= s->block_last_index[n];
1413
    int skip_dc;
1414

    
1415
    if(threshold<0){
1416
        skip_dc=0;
1417
        threshold= -threshold;
1418
    }else
1419
        skip_dc=1;
1420

    
1421
    /* Are all we could set to zero already zero? */
1422
    if(last_index<=skip_dc - 1) return;
1423

    
1424
    for(i=0; i<=last_index; i++){
1425
        const int j = s->intra_scantable.permutated[i];
1426
        const int level = FFABS(block[j]);
1427
        if(level==1){
1428
            if(skip_dc && i==0) continue;
1429
            score+= tab[run];
1430
            run=0;
1431
        }else if(level>1){
1432
            return;
1433
        }else{
1434
            run++;
1435
        }
1436
    }
1437
    if(score >= threshold) return;
1438
    for(i=skip_dc; i<=last_index; i++){
1439
        const int j = s->intra_scantable.permutated[i];
1440
        block[j]=0;
1441
    }
1442
    if(block[0]) s->block_last_index[n]= 0;
1443
    else         s->block_last_index[n]= -1;
1444
}
1445

    
1446
static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1447
{
1448
    int i;
1449
    const int maxlevel= s->max_qcoeff;
1450
    const int minlevel= s->min_qcoeff;
1451
    int overflow=0;
1452

    
1453
    if(s->mb_intra){
1454
        i=1; //skip clipping of intra dc
1455
    }else
1456
        i=0;
1457

    
1458
    for(;i<=last_index; i++){
1459
        const int j= s->intra_scantable.permutated[i];
1460
        int level = block[j];
1461

    
1462
        if     (level>maxlevel){
1463
            level=maxlevel;
1464
            overflow++;
1465
        }else if(level<minlevel){
1466
            level=minlevel;
1467
            overflow++;
1468
        }
1469

    
1470
        block[j]= level;
1471
    }
1472

    
1473
    if(overflow && s->avctx->mb_decision == FF_MB_DECISION_SIMPLE)
1474
        av_log(s->avctx, AV_LOG_INFO, "warning, clipping %d dct coefficients to %d..%d\n", overflow, minlevel, maxlevel);
1475
}
1476

    
1477
static void get_visual_weight(int16_t *weight, uint8_t *ptr, int stride){
1478
    int x, y;
1479
//FIXME optimize
1480
    for(y=0; y<8; y++){
1481
        for(x=0; x<8; x++){
1482
            int x2, y2;
1483
            int sum=0;
1484
            int sqr=0;
1485
            int count=0;
1486

    
1487
            for(y2= FFMAX(y-1, 0); y2 < FFMIN(8, y+2); y2++){
1488
                for(x2= FFMAX(x-1, 0); x2 < FFMIN(8, x+2); x2++){
1489
                    int v= ptr[x2 + y2*stride];
1490
                    sum += v;
1491
                    sqr += v*v;
1492
                    count++;
1493
                }
1494
            }
1495
            weight[x + 8*y]= (36*ff_sqrt(count*sqr - sum*sum)) / count;
1496
        }
1497
    }
1498
}
1499

    
1500
static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count)
1501
{
1502
    int16_t weight[8][64];
1503
    DCTELEM orig[8][64];
1504
    const int mb_x= s->mb_x;
1505
    const int mb_y= s->mb_y;
1506
    int i;
1507
    int skip_dct[8];
1508
    int dct_offset   = s->linesize*8; //default for progressive frames
1509
    uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1510
    int wrap_y, wrap_c;
1511

    
1512
    for(i=0; i<mb_block_count; i++) skip_dct[i]=s->skipdct;
1513

    
1514
    if(s->adaptive_quant){
1515
        const int last_qp= s->qscale;
1516
        const int mb_xy= mb_x + mb_y*s->mb_stride;
1517

    
1518
        s->lambda= s->lambda_table[mb_xy];
1519
        update_qscale(s);
1520

    
1521
        if(!(s->flags&CODEC_FLAG_QP_RD)){
1522
            s->qscale= s->current_picture_ptr->qscale_table[mb_xy];
1523
            s->dquant= s->qscale - last_qp;
1524

    
1525
            if(s->out_format==FMT_H263){
1526
                s->dquant= av_clip(s->dquant, -2, 2);
1527

    
1528
                if(s->codec_id==CODEC_ID_MPEG4){
1529
                    if(!s->mb_intra){
1530
                        if(s->pict_type == FF_B_TYPE){
1531
                            if(s->dquant&1 || s->mv_dir&MV_DIRECT)
1532
                                s->dquant= 0;
1533
                        }
1534
                        if(s->mv_type==MV_TYPE_8X8)
1535
                            s->dquant=0;
1536
                    }
1537
                }
1538
            }
1539
        }
1540
        ff_set_qscale(s, last_qp + s->dquant);
1541
    }else if(s->flags&CODEC_FLAG_QP_RD)
1542
        ff_set_qscale(s, s->qscale + s->dquant);
1543

    
1544
    wrap_y = s->linesize;
1545
    wrap_c = s->uvlinesize;
1546
    ptr_y = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
1547
    ptr_cb = s->new_picture.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1548
    ptr_cr = s->new_picture.data[2] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1549

    
1550
    if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
1551
        uint8_t *ebuf= s->edge_emu_buffer + 32;
1552
        s->dsp.emulated_edge_mc(ebuf            , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width   , s->height);
1553
        ptr_y= ebuf;
1554
        s->dsp.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);
1555
        ptr_cb= ebuf+18*wrap_y;
1556
        s->dsp.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);
1557
        ptr_cr= ebuf+18*wrap_y+8;
1558
    }
1559

    
1560
    if (s->mb_intra) {
1561
        if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1562
            int progressive_score, interlaced_score;
1563

    
1564
            s->interlaced_dct=0;
1565
            progressive_score= s->dsp.ildct_cmp[4](s, ptr_y           , NULL, wrap_y, 8)
1566
                              +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y*8, NULL, wrap_y, 8) - 400;
1567

    
1568
            if(progressive_score > 0){
1569
                interlaced_score = s->dsp.ildct_cmp[4](s, ptr_y           , NULL, wrap_y*2, 8)
1570
                                  +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y  , NULL, wrap_y*2, 8);
1571
                if(progressive_score > interlaced_score){
1572
                    s->interlaced_dct=1;
1573

    
1574
                    dct_offset= wrap_y;
1575
                    wrap_y<<=1;
1576
                    if (s->chroma_format == CHROMA_422)
1577
                        wrap_c<<=1;
1578
                }
1579
            }
1580
        }
1581

    
1582
        s->dsp.get_pixels(s->block[0], ptr_y                 , wrap_y);
1583
        s->dsp.get_pixels(s->block[1], ptr_y              + 8, wrap_y);
1584
        s->dsp.get_pixels(s->block[2], ptr_y + dct_offset    , wrap_y);
1585
        s->dsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y);
1586

    
1587
        if(s->flags&CODEC_FLAG_GRAY){
1588
            skip_dct[4]= 1;
1589
            skip_dct[5]= 1;
1590
        }else{
1591
            s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c);
1592
            s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c);
1593
            if(!s->chroma_y_shift){ /* 422 */
1594
                s->dsp.get_pixels(s->block[6], ptr_cb + (dct_offset>>1), wrap_c);
1595
                s->dsp.get_pixels(s->block[7], ptr_cr + (dct_offset>>1), wrap_c);
1596
            }
1597
        }
1598
    }else{
1599
        op_pixels_func (*op_pix)[4];
1600
        qpel_mc_func (*op_qpix)[16];
1601
        uint8_t *dest_y, *dest_cb, *dest_cr;
1602

    
1603
        dest_y  = s->dest[0];
1604
        dest_cb = s->dest[1];
1605
        dest_cr = s->dest[2];
1606

    
1607
        if ((!s->no_rounding) || s->pict_type==FF_B_TYPE){
1608
            op_pix = s->dsp.put_pixels_tab;
1609
            op_qpix= s->dsp.put_qpel_pixels_tab;
1610
        }else{
1611
            op_pix = s->dsp.put_no_rnd_pixels_tab;
1612
            op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab;
1613
        }
1614

    
1615
        if (s->mv_dir & MV_DIR_FORWARD) {
1616
            MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix);
1617
            op_pix = s->dsp.avg_pixels_tab;
1618
            op_qpix= s->dsp.avg_qpel_pixels_tab;
1619
        }
1620
        if (s->mv_dir & MV_DIR_BACKWARD) {
1621
            MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix);
1622
        }
1623

    
1624
        if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1625
            int progressive_score, interlaced_score;
1626

    
1627
            s->interlaced_dct=0;
1628
            progressive_score= s->dsp.ildct_cmp[0](s, dest_y           , ptr_y           , wrap_y, 8)
1629
                              +s->dsp.ildct_cmp[0](s, dest_y + wrap_y*8, ptr_y + wrap_y*8, wrap_y, 8) - 400;
1630

    
1631
            if(s->avctx->ildct_cmp == FF_CMP_VSSE) progressive_score -= 400;
1632

    
1633
            if(progressive_score>0){
1634
                interlaced_score = s->dsp.ildct_cmp[0](s, dest_y           , ptr_y           , wrap_y*2, 8)
1635
                                  +s->dsp.ildct_cmp[0](s, dest_y + wrap_y  , ptr_y + wrap_y  , wrap_y*2, 8);
1636

    
1637
                if(progressive_score > interlaced_score){
1638
                    s->interlaced_dct=1;
1639

    
1640
                    dct_offset= wrap_y;
1641
                    wrap_y<<=1;
1642
                    if (s->chroma_format == CHROMA_422)
1643
                        wrap_c<<=1;
1644
                }
1645
            }
1646
        }
1647

    
1648
        s->dsp.diff_pixels(s->block[0], ptr_y                 , dest_y                 , wrap_y);
1649
        s->dsp.diff_pixels(s->block[1], ptr_y              + 8, dest_y              + 8, wrap_y);
1650
        s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset    , dest_y + dct_offset    , wrap_y);
1651
        s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y);
1652

    
1653
        if(s->flags&CODEC_FLAG_GRAY){
1654
            skip_dct[4]= 1;
1655
            skip_dct[5]= 1;
1656
        }else{
1657
            s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
1658
            s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
1659
            if(!s->chroma_y_shift){ /* 422 */
1660
                s->dsp.diff_pixels(s->block[6], ptr_cb + (dct_offset>>1), dest_cb + (dct_offset>>1), wrap_c);
1661
                s->dsp.diff_pixels(s->block[7], ptr_cr + (dct_offset>>1), dest_cr + (dct_offset>>1), wrap_c);
1662
            }
1663
        }
1664
        /* pre quantization */
1665
        if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){
1666
            //FIXME optimize
1667
            if(s->dsp.sad[1](NULL, ptr_y               , dest_y               , wrap_y, 8) < 20*s->qscale) skip_dct[0]= 1;
1668
            if(s->dsp.sad[1](NULL, ptr_y            + 8, dest_y            + 8, wrap_y, 8) < 20*s->qscale) skip_dct[1]= 1;
1669
            if(s->dsp.sad[1](NULL, ptr_y +dct_offset   , dest_y +dct_offset   , wrap_y, 8) < 20*s->qscale) skip_dct[2]= 1;
1670
            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;
1671
            if(s->dsp.sad[1](NULL, ptr_cb              , dest_cb              , wrap_c, 8) < 20*s->qscale) skip_dct[4]= 1;
1672
            if(s->dsp.sad[1](NULL, ptr_cr              , dest_cr              , wrap_c, 8) < 20*s->qscale) skip_dct[5]= 1;
1673
            if(!s->chroma_y_shift){ /* 422 */
1674
                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;
1675
                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;
1676
            }
1677
        }
1678
    }
1679

    
1680
    if(s->avctx->quantizer_noise_shaping){
1681
        if(!skip_dct[0]) get_visual_weight(weight[0], ptr_y                 , wrap_y);
1682
        if(!skip_dct[1]) get_visual_weight(weight[1], ptr_y              + 8, wrap_y);
1683
        if(!skip_dct[2]) get_visual_weight(weight[2], ptr_y + dct_offset    , wrap_y);
1684
        if(!skip_dct[3]) get_visual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y);
1685
        if(!skip_dct[4]) get_visual_weight(weight[4], ptr_cb                , wrap_c);
1686
        if(!skip_dct[5]) get_visual_weight(weight[5], ptr_cr                , wrap_c);
1687
        if(!s->chroma_y_shift){ /* 422 */
1688
            if(!skip_dct[6]) get_visual_weight(weight[6], ptr_cb + (dct_offset>>1), wrap_c);
1689
            if(!skip_dct[7]) get_visual_weight(weight[7], ptr_cr + (dct_offset>>1), wrap_c);
1690
        }
1691
        memcpy(orig[0], s->block[0], sizeof(DCTELEM)*64*mb_block_count);
1692
    }
1693

    
1694
    /* DCT & quantize */
1695
    assert(s->out_format!=FMT_MJPEG || s->qscale==8);
1696
    {
1697
        for(i=0;i<mb_block_count;i++) {
1698
            if(!skip_dct[i]){
1699
                int overflow;
1700
                s->block_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow);
1701
            // FIXME we could decide to change to quantizer instead of clipping
1702
            // JS: I don't think that would be a good idea it could lower quality instead
1703
            //     of improve it. Just INTRADC clipping deserves changes in quantizer
1704
                if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1705
            }else
1706
                s->block_last_index[i]= -1;
1707
        }
1708
        if(s->avctx->quantizer_noise_shaping){
1709
            for(i=0;i<mb_block_count;i++) {
1710
                if(!skip_dct[i]){
1711
                    s->block_last_index[i] = dct_quantize_refine(s, s->block[i], weight[i], orig[i], i, s->qscale);
1712
                }
1713
            }
1714
        }
1715

    
1716
        if(s->luma_elim_threshold && !s->mb_intra)
1717
            for(i=0; i<4; i++)
1718
                dct_single_coeff_elimination(s, i, s->luma_elim_threshold);
1719
        if(s->chroma_elim_threshold && !s->mb_intra)
1720
            for(i=4; i<mb_block_count; i++)
1721
                dct_single_coeff_elimination(s, i, s->chroma_elim_threshold);
1722

    
1723
        if(s->flags & CODEC_FLAG_CBP_RD){
1724
            for(i=0;i<mb_block_count;i++) {
1725
                if(s->block_last_index[i] == -1)
1726
                    s->coded_score[i]= INT_MAX/256;
1727
            }
1728
        }
1729
    }
1730

    
1731
    if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
1732
        s->block_last_index[4]=
1733
        s->block_last_index[5]= 0;
1734
        s->block[4][0]=
1735
        s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale;
1736
    }
1737

    
1738
    //non c quantize code returns incorrect block_last_index FIXME
1739
    if(s->alternate_scan && s->dct_quantize != dct_quantize_c){
1740
        for(i=0; i<mb_block_count; i++){
1741
            int j;
1742
            if(s->block_last_index[i]>0){
1743
                for(j=63; j>0; j--){
1744
                    if(s->block[i][ s->intra_scantable.permutated[j] ]) break;
1745
                }
1746
                s->block_last_index[i]= j;
1747
            }
1748
        }
1749
    }
1750

    
1751
    /* huffman encode */
1752
    switch(s->codec_id){ //FIXME funct ptr could be slightly faster
1753
    case CODEC_ID_MPEG1VIDEO:
1754
    case CODEC_ID_MPEG2VIDEO:
1755
        if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
1756
            mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1757
        break;
1758
    case CODEC_ID_MPEG4:
1759
        if (CONFIG_MPEG4_ENCODER)
1760
            mpeg4_encode_mb(s, s->block, motion_x, motion_y);
1761
        break;
1762
    case CODEC_ID_MSMPEG4V2:
1763
    case CODEC_ID_MSMPEG4V3:
1764
    case CODEC_ID_WMV1:
1765
        if (CONFIG_MSMPEG4_ENCODER)
1766
            msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1767
        break;
1768
    case CODEC_ID_WMV2:
1769
        if (CONFIG_WMV2_ENCODER)
1770
            ff_wmv2_encode_mb(s, s->block, motion_x, motion_y);
1771
        break;
1772
    case CODEC_ID_H261:
1773
        if (CONFIG_H261_ENCODER)
1774
            ff_h261_encode_mb(s, s->block, motion_x, motion_y);
1775
        break;
1776
    case CODEC_ID_H263:
1777
    case CODEC_ID_H263P:
1778
    case CODEC_ID_FLV1:
1779
    case CODEC_ID_RV10:
1780
    case CODEC_ID_RV20:
1781
        if (CONFIG_H263_ENCODER)
1782
            h263_encode_mb(s, s->block, motion_x, motion_y);
1783
        break;
1784
    case CODEC_ID_MJPEG:
1785
        if (CONFIG_MJPEG_ENCODER)
1786
            ff_mjpeg_encode_mb(s, s->block);
1787
        break;
1788
    default:
1789
        assert(0);
1790
    }
1791
}
1792

    
1793
static av_always_inline void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
1794
{
1795
    if (s->chroma_format == CHROMA_420) encode_mb_internal(s, motion_x, motion_y,  8, 6);
1796
    else                                encode_mb_internal(s, motion_x, motion_y, 16, 8);
1797
}
1798

    
1799
static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1800
    int i;
1801

    
1802
    memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1803

    
1804
    /* mpeg1 */
1805
    d->mb_skip_run= s->mb_skip_run;
1806
    for(i=0; i<3; i++)
1807
        d->last_dc[i]= s->last_dc[i];
1808

    
1809
    /* statistics */
1810
    d->mv_bits= s->mv_bits;
1811
    d->i_tex_bits= s->i_tex_bits;
1812
    d->p_tex_bits= s->p_tex_bits;
1813
    d->i_count= s->i_count;
1814
    d->f_count= s->f_count;
1815
    d->b_count= s->b_count;
1816
    d->skip_count= s->skip_count;
1817
    d->misc_bits= s->misc_bits;
1818
    d->last_bits= 0;
1819

    
1820
    d->mb_skipped= 0;
1821
    d->qscale= s->qscale;
1822
    d->dquant= s->dquant;
1823

    
1824
    d->esc3_level_length= s->esc3_level_length;
1825
}
1826

    
1827
static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1828
    int i;
1829

    
1830
    memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
1831
    memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1832

    
1833
    /* mpeg1 */
1834
    d->mb_skip_run= s->mb_skip_run;
1835
    for(i=0; i<3; i++)
1836
        d->last_dc[i]= s->last_dc[i];
1837

    
1838
    /* statistics */
1839
    d->mv_bits= s->mv_bits;
1840
    d->i_tex_bits= s->i_tex_bits;
1841
    d->p_tex_bits= s->p_tex_bits;
1842
    d->i_count= s->i_count;
1843
    d->f_count= s->f_count;
1844
    d->b_count= s->b_count;
1845
    d->skip_count= s->skip_count;
1846
    d->misc_bits= s->misc_bits;
1847

    
1848
    d->mb_intra= s->mb_intra;
1849
    d->mb_skipped= s->mb_skipped;
1850
    d->mv_type= s->mv_type;
1851
    d->mv_dir= s->mv_dir;
1852
    d->pb= s->pb;
1853
    if(s->data_partitioning){
1854
        d->pb2= s->pb2;
1855
        d->tex_pb= s->tex_pb;
1856
    }
1857
    d->block= s->block;
1858
    for(i=0; i<8; i++)
1859
        d->block_last_index[i]= s->block_last_index[i];
1860
    d->interlaced_dct= s->interlaced_dct;
1861
    d->qscale= s->qscale;
1862

    
1863
    d->esc3_level_length= s->esc3_level_length;
1864
}
1865

    
1866
static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type,
1867
                           PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
1868
                           int *dmin, int *next_block, int motion_x, int motion_y)
1869
{
1870
    int score;
1871
    uint8_t *dest_backup[3];
1872

    
1873
    copy_context_before_encode(s, backup, type);
1874

    
1875
    s->block= s->blocks[*next_block];
1876
    s->pb= pb[*next_block];
1877
    if(s->data_partitioning){
1878
        s->pb2   = pb2   [*next_block];
1879
        s->tex_pb= tex_pb[*next_block];
1880
    }
1881

    
1882
    if(*next_block){
1883
        memcpy(dest_backup, s->dest, sizeof(s->dest));
1884
        s->dest[0] = s->rd_scratchpad;
1885
        s->dest[1] = s->rd_scratchpad + 16*s->linesize;
1886
        s->dest[2] = s->rd_scratchpad + 16*s->linesize + 8;
1887
        assert(s->linesize >= 32); //FIXME
1888
    }
1889

    
1890
    encode_mb(s, motion_x, motion_y);
1891

    
1892
    score= put_bits_count(&s->pb);
1893
    if(s->data_partitioning){
1894
        score+= put_bits_count(&s->pb2);
1895
        score+= put_bits_count(&s->tex_pb);
1896
    }
1897

    
1898
    if(s->avctx->mb_decision == FF_MB_DECISION_RD){
1899
        MPV_decode_mb(s, s->block);
1900

    
1901
        score *= s->lambda2;
1902
        score += sse_mb(s) << FF_LAMBDA_SHIFT;
1903
    }
1904

    
1905
    if(*next_block){
1906
        memcpy(s->dest, dest_backup, sizeof(s->dest));
1907
    }
1908

    
1909
    if(score<*dmin){
1910
        *dmin= score;
1911
        *next_block^=1;
1912

    
1913
        copy_context_after_encode(best, s, type);
1914
    }
1915
}
1916

    
1917
static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){
1918
    uint32_t *sq = ff_squareTbl + 256;
1919
    int acc=0;
1920
    int x,y;
1921

    
1922
    if(w==16 && h==16)
1923
        return s->dsp.sse[0](NULL, src1, src2, stride, 16);
1924
    else if(w==8 && h==8)
1925
        return s->dsp.sse[1](NULL, src1, src2, stride, 8);
1926

    
1927
    for(y=0; y<h; y++){
1928
        for(x=0; x<w; x++){
1929
            acc+= sq[src1[x + y*stride] - src2[x + y*stride]];
1930
        }
1931
    }
1932

    
1933
    assert(acc>=0);
1934

    
1935
    return acc;
1936
}
1937

    
1938
static int sse_mb(MpegEncContext *s){
1939
    int w= 16;
1940
    int h= 16;
1941

    
1942
    if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
1943
    if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
1944

    
1945
    if(w==16 && h==16)
1946
      if(s->avctx->mb_cmp == FF_CMP_NSSE){
1947
        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)
1948
               +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)
1949
               +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);
1950
      }else{
1951
        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)
1952
               +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)
1953
               +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);
1954
      }
1955
    else
1956
        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)
1957
               +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)
1958
               +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);
1959
}
1960

    
1961
static int pre_estimate_motion_thread(AVCodecContext *c, void *arg){
1962
    MpegEncContext *s= *(void**)arg;
1963

    
1964

    
1965
    s->me.pre_pass=1;
1966
    s->me.dia_size= s->avctx->pre_dia_size;
1967
    s->first_slice_line=1;
1968
    for(s->mb_y= s->end_mb_y-1; s->mb_y >= s->start_mb_y; s->mb_y--) {
1969
        for(s->mb_x=s->mb_width-1; s->mb_x >=0 ;s->mb_x--) {
1970
            ff_pre_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1971
        }
1972
        s->first_slice_line=0;
1973
    }
1974

    
1975
    s->me.pre_pass=0;
1976

    
1977
    return 0;
1978
}
1979

    
1980
static int estimate_motion_thread(AVCodecContext *c, void *arg){
1981
    MpegEncContext *s= *(void**)arg;
1982

    
1983
    ff_check_alignment();
1984

    
1985
    s->me.dia_size= s->avctx->dia_size;
1986
    s->first_slice_line=1;
1987
    for(s->mb_y= s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
1988
        s->mb_x=0; //for block init below
1989
        ff_init_block_index(s);
1990
        for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {
1991
            s->block_index[0]+=2;
1992
            s->block_index[1]+=2;
1993
            s->block_index[2]+=2;
1994
            s->block_index[3]+=2;
1995

    
1996
            /* compute motion vector & mb_type and store in context */
1997
            if(s->pict_type==FF_B_TYPE)
1998
                ff_estimate_b_frame_motion(s, s->mb_x, s->mb_y);
1999
            else
2000
                ff_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
2001
        }
2002
        s->first_slice_line=0;
2003
    }
2004
    return 0;
2005
}
2006

    
2007
static int mb_var_thread(AVCodecContext *c, void *arg){
2008
    MpegEncContext *s= *(void**)arg;
2009
    int mb_x, mb_y;
2010

    
2011
    ff_check_alignment();
2012

    
2013
    for(mb_y=s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2014
        for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2015
            int xx = mb_x * 16;
2016
            int yy = mb_y * 16;
2017
            uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
2018
            int varc;
2019
            int sum = s->dsp.pix_sum(pix, s->linesize);
2020

    
2021
            varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
2022

    
2023
            s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
2024
            s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
2025
            s->me.mb_var_sum_temp    += varc;
2026
        }
2027
    }
2028
    return 0;
2029
}
2030

    
2031
static void write_slice_end(MpegEncContext *s){
2032
    if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4){
2033
        if(s->partitioned_frame){
2034
            ff_mpeg4_merge_partitions(s);
2035
        }
2036

    
2037
        ff_mpeg4_stuffing(&s->pb);
2038
    }else if(CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG){
2039
        ff_mjpeg_encode_stuffing(&s->pb);
2040
    }
2041

    
2042
    align_put_bits(&s->pb);
2043
    flush_put_bits(&s->pb);
2044

    
2045
    if((s->flags&CODEC_FLAG_PASS1) && !s->partitioned_frame)
2046
        s->misc_bits+= get_bits_diff(s);
2047
}
2048

    
2049
static int encode_thread(AVCodecContext *c, void *arg){
2050
    MpegEncContext *s= *(void**)arg;
2051
    int mb_x, mb_y, pdif = 0;
2052
    int chr_h= 16>>s->chroma_y_shift;
2053
    int i, j;
2054
    MpegEncContext best_s, backup_s;
2055
    uint8_t bit_buf[2][MAX_MB_BYTES];
2056
    uint8_t bit_buf2[2][MAX_MB_BYTES];
2057
    uint8_t bit_buf_tex[2][MAX_MB_BYTES];
2058
    PutBitContext pb[2], pb2[2], tex_pb[2];
2059
//printf("%d->%d\n", s->resync_mb_y, s->end_mb_y);
2060

    
2061
    ff_check_alignment();
2062

    
2063
    for(i=0; i<2; i++){
2064
        init_put_bits(&pb    [i], bit_buf    [i], MAX_MB_BYTES);
2065
        init_put_bits(&pb2   [i], bit_buf2   [i], MAX_MB_BYTES);
2066
        init_put_bits(&tex_pb[i], bit_buf_tex[i], MAX_MB_BYTES);
2067
    }
2068

    
2069
    s->last_bits= put_bits_count(&s->pb);
2070
    s->mv_bits=0;
2071
    s->misc_bits=0;
2072
    s->i_tex_bits=0;
2073
    s->p_tex_bits=0;
2074
    s->i_count=0;
2075
    s->f_count=0;
2076
    s->b_count=0;
2077
    s->skip_count=0;
2078

    
2079
    for(i=0; i<3; i++){
2080
        /* init last dc values */
2081
        /* note: quant matrix value (8) is implied here */
2082
        s->last_dc[i] = 128 << s->intra_dc_precision;
2083

    
2084
        s->current_picture.error[i] = 0;
2085
    }
2086
    s->mb_skip_run = 0;
2087
    memset(s->last_mv, 0, sizeof(s->last_mv));
2088

    
2089
    s->last_mv_dir = 0;
2090

    
2091
    switch(s->codec_id){
2092
    case CODEC_ID_H263:
2093
    case CODEC_ID_H263P:
2094
    case CODEC_ID_FLV1:
2095
        if (CONFIG_H263_ENCODER)
2096
            s->gob_index = ff_h263_get_gob_height(s);
2097
        break;
2098
    case CODEC_ID_MPEG4:
2099
        if(CONFIG_MPEG4_ENCODER && s->partitioned_frame)
2100
            ff_mpeg4_init_partitions(s);
2101
        break;
2102
    }
2103

    
2104
    s->resync_mb_x=0;
2105
    s->resync_mb_y=0;
2106
    s->first_slice_line = 1;
2107
    s->ptr_lastgob = s->pb.buf;
2108
    for(mb_y= s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2109
//    printf("row %d at %X\n", s->mb_y, (int)s);
2110
        s->mb_x=0;
2111
        s->mb_y= mb_y;
2112

    
2113
        ff_set_qscale(s, s->qscale);
2114
        ff_init_block_index(s);
2115

    
2116
        for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2117
            int xy= mb_y*s->mb_stride + mb_x; // removed const, H261 needs to adjust this
2118
            int mb_type= s->mb_type[xy];
2119
//            int d;
2120
            int dmin= INT_MAX;
2121
            int dir;
2122

    
2123
            if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < MAX_MB_BYTES){
2124
                av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2125
                return -1;
2126
            }
2127
            if(s->data_partitioning){
2128
                if(   s->pb2   .buf_end - s->pb2   .buf - (put_bits_count(&s->    pb2)>>3) < MAX_MB_BYTES
2129
                   || s->tex_pb.buf_end - s->tex_pb.buf - (put_bits_count(&s->tex_pb )>>3) < MAX_MB_BYTES){
2130
                    av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2131
                    return -1;
2132
                }
2133
            }
2134

    
2135
            s->mb_x = mb_x;
2136
            s->mb_y = mb_y;  // moved into loop, can get changed by H.261
2137
            ff_update_block_index(s);
2138

    
2139
            if(CONFIG_H261_ENCODER && s->codec_id == CODEC_ID_H261){
2140
                ff_h261_reorder_mb_index(s);
2141
                xy= s->mb_y*s->mb_stride + s->mb_x;
2142
                mb_type= s->mb_type[xy];
2143
            }
2144

    
2145
            /* write gob / video packet header  */
2146
            if(s->rtp_mode){
2147
                int current_packet_size, is_gob_start;
2148

    
2149
                current_packet_size= ((put_bits_count(&s->pb)+7)>>3) - (s->ptr_lastgob - s->pb.buf);
2150

    
2151
                is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0;
2152

    
2153
                if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1;
2154

    
2155
                switch(s->codec_id){
2156
                case CODEC_ID_H263:
2157
                case CODEC_ID_H263P:
2158
                    if(!s->h263_slice_structured)
2159
                        if(s->mb_x || s->mb_y%s->gob_index) is_gob_start=0;
2160
                    break;
2161
                case CODEC_ID_MPEG2VIDEO:
2162
                    if(s->mb_x==0 && s->mb_y!=0) is_gob_start=1;
2163
                case CODEC_ID_MPEG1VIDEO:
2164
                    if(s->mb_skip_run) is_gob_start=0;
2165
                    break;
2166
                }
2167

    
2168
                if(is_gob_start){
2169
                    if(s->start_mb_y != mb_y || mb_x!=0){
2170
                        write_slice_end(s);
2171

    
2172
                        if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){
2173
                            ff_mpeg4_init_partitions(s);
2174
                        }
2175
                    }
2176

    
2177
                    assert((put_bits_count(&s->pb)&7) == 0);
2178
                    current_packet_size= put_bits_ptr(&s->pb) - s->ptr_lastgob;
2179

    
2180
                    if(s->avctx->error_rate && s->resync_mb_x + s->resync_mb_y > 0){
2181
                        int r= put_bits_count(&s->pb)/8 + s->picture_number + 16 + s->mb_x + s->mb_y;
2182
                        int d= 100 / s->avctx->error_rate;
2183
                        if(r % d == 0){
2184
                            current_packet_size=0;
2185
#ifndef ALT_BITSTREAM_WRITER
2186
                            s->pb.buf_ptr= s->ptr_lastgob;
2187
#endif
2188
                            assert(put_bits_ptr(&s->pb) == s->ptr_lastgob);
2189
                        }
2190
                    }
2191

    
2192
                    if (s->avctx->rtp_callback){
2193
                        int number_mb = (mb_y - s->resync_mb_y)*s->mb_width + mb_x - s->resync_mb_x;
2194
                        s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, current_packet_size, number_mb);
2195
                    }
2196

    
2197
                    switch(s->codec_id){
2198
                    case CODEC_ID_MPEG4:
2199
                        if (CONFIG_MPEG4_ENCODER) {
2200
                            ff_mpeg4_encode_video_packet_header(s);
2201
                            ff_mpeg4_clean_buffers(s);
2202
                        }
2203
                    break;
2204
                    case CODEC_ID_MPEG1VIDEO:
2205
                    case CODEC_ID_MPEG2VIDEO:
2206
                        if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) {
2207
                            ff_mpeg1_encode_slice_header(s);
2208
                            ff_mpeg1_clean_buffers(s);
2209
                        }
2210
                    break;
2211
                    case CODEC_ID_H263:
2212
                    case CODEC_ID_H263P:
2213
                        if (CONFIG_H263_ENCODER)
2214
                            h263_encode_gob_header(s, mb_y);
2215
                    break;
2216
                    }
2217

    
2218
                    if(s->flags&CODEC_FLAG_PASS1){
2219
                        int bits= put_bits_count(&s->pb);
2220
                        s->misc_bits+= bits - s->last_bits;
2221
                        s->last_bits= bits;
2222
                    }
2223

    
2224
                    s->ptr_lastgob += current_packet_size;
2225
                    s->first_slice_line=1;
2226
                    s->resync_mb_x=mb_x;
2227
                    s->resync_mb_y=mb_y;
2228
                }
2229
            }
2230

    
2231
            if(  (s->resync_mb_x   == s->mb_x)
2232
               && s->resync_mb_y+1 == s->mb_y){
2233
                s->first_slice_line=0;
2234
            }
2235

    
2236
            s->mb_skipped=0;
2237
            s->dquant=0; //only for QP_RD
2238

    
2239
            if(mb_type & (mb_type-1) || (s->flags & CODEC_FLAG_QP_RD)){ // more than 1 MB type possible or CODEC_FLAG_QP_RD
2240
                int next_block=0;
2241
                int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
2242

    
2243
                copy_context_before_encode(&backup_s, s, -1);
2244
                backup_s.pb= s->pb;
2245
                best_s.data_partitioning= s->data_partitioning;
2246
                best_s.partitioned_frame= s->partitioned_frame;
2247
                if(s->data_partitioning){
2248
                    backup_s.pb2= s->pb2;
2249
                    backup_s.tex_pb= s->tex_pb;
2250
                }
2251

    
2252
                if(mb_type&CANDIDATE_MB_TYPE_INTER){
2253
                    s->mv_dir = MV_DIR_FORWARD;
2254
                    s->mv_type = MV_TYPE_16X16;
2255
                    s->mb_intra= 0;
2256
                    s->mv[0][0][0] = s->p_mv_table[xy][0];
2257
                    s->mv[0][0][1] = s->p_mv_table[xy][1];
2258
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER, pb, pb2, tex_pb,
2259
                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2260
                }
2261
                if(mb_type&CANDIDATE_MB_TYPE_INTER_I){
2262
                    s->mv_dir = MV_DIR_FORWARD;
2263
                    s->mv_type = MV_TYPE_FIELD;
2264
                    s->mb_intra= 0;
2265
                    for(i=0; i<2; i++){
2266
                        j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2267
                        s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2268
                        s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2269
                    }
2270
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER_I, pb, pb2, tex_pb,
2271
                                 &dmin, &next_block, 0, 0);
2272
                }
2273
                if(mb_type&CANDIDATE_MB_TYPE_SKIPPED){
2274
                    s->mv_dir = MV_DIR_FORWARD;
2275
                    s->mv_type = MV_TYPE_16X16;
2276
                    s->mb_intra= 0;
2277
                    s->mv[0][0][0] = 0;
2278
                    s->mv[0][0][1] = 0;
2279
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_SKIPPED, pb, pb2, tex_pb,
2280
                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2281
                }
2282
                if(mb_type&CANDIDATE_MB_TYPE_INTER4V){
2283
                    s->mv_dir = MV_DIR_FORWARD;
2284
                    s->mv_type = MV_TYPE_8X8;
2285
                    s->mb_intra= 0;
2286
                    for(i=0; i<4; i++){
2287
                        s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2288
                        s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2289
                    }
2290
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER4V, pb, pb2, tex_pb,
2291
                                 &dmin, &next_block, 0, 0);
2292
                }
2293
                if(mb_type&CANDIDATE_MB_TYPE_FORWARD){
2294
                    s->mv_dir = MV_DIR_FORWARD;
2295
                    s->mv_type = MV_TYPE_16X16;
2296
                    s->mb_intra= 0;
2297
                    s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2298
                    s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2299
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD, pb, pb2, tex_pb,
2300
                                 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2301
                }
2302
                if(mb_type&CANDIDATE_MB_TYPE_BACKWARD){
2303
                    s->mv_dir = MV_DIR_BACKWARD;
2304
                    s->mv_type = MV_TYPE_16X16;
2305
                    s->mb_intra= 0;
2306
                    s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2307
                    s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2308
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD, pb, pb2, tex_pb,
2309
                                 &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
2310
                }
2311
                if(mb_type&CANDIDATE_MB_TYPE_BIDIR){
2312
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2313
                    s->mv_type = MV_TYPE_16X16;
2314
                    s->mb_intra= 0;
2315
                    s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2316
                    s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2317
                    s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2318
                    s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2319
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb,
2320
                                 &dmin, &next_block, 0, 0);
2321
                }
2322
                if(mb_type&CANDIDATE_MB_TYPE_FORWARD_I){
2323
                    s->mv_dir = MV_DIR_FORWARD;
2324
                    s->mv_type = MV_TYPE_FIELD;
2325
                    s->mb_intra= 0;
2326
                    for(i=0; i<2; i++){
2327
                        j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2328
                        s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2329
                        s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2330
                    }
2331
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD_I, pb, pb2, tex_pb,
2332
                                 &dmin, &next_block, 0, 0);
2333
                }
2334
                if(mb_type&CANDIDATE_MB_TYPE_BACKWARD_I){
2335
                    s->mv_dir = MV_DIR_BACKWARD;
2336
                    s->mv_type = MV_TYPE_FIELD;
2337
                    s->mb_intra= 0;
2338
                    for(i=0; i<2; i++){
2339
                        j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2340
                        s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2341
                        s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2342
                    }
2343
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD_I, pb, pb2, tex_pb,
2344
                                 &dmin, &next_block, 0, 0);
2345
                }
2346
                if(mb_type&CANDIDATE_MB_TYPE_BIDIR_I){
2347
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2348
                    s->mv_type = MV_TYPE_FIELD;
2349
                    s->mb_intra= 0;
2350
                    for(dir=0; dir<2; dir++){
2351
                        for(i=0; i<2; i++){
2352
                            j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2353
                            s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2354
                            s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2355
                        }
2356
                    }
2357
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR_I, pb, pb2, tex_pb,
2358
                                 &dmin, &next_block, 0, 0);
2359
                }
2360
                if(mb_type&CANDIDATE_MB_TYPE_INTRA){
2361
                    s->mv_dir = 0;
2362
                    s->mv_type = MV_TYPE_16X16;
2363
                    s->mb_intra= 1;
2364
                    s->mv[0][0][0] = 0;
2365
                    s->mv[0][0][1] = 0;
2366
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTRA, pb, pb2, tex_pb,
2367
                                 &dmin, &next_block, 0, 0);
2368
                    if(s->h263_pred || s->h263_aic){
2369
                        if(best_s.mb_intra)
2370
                            s->mbintra_table[mb_x + mb_y*s->mb_stride]=1;
2371
                        else
2372
                            ff_clean_intra_table_entries(s); //old mode?
2373
                    }
2374
                }
2375

    
2376
                if((s->flags & CODEC_FLAG_QP_RD) && dmin < INT_MAX){
2377
                    if(best_s.mv_type==MV_TYPE_16X16){ //FIXME move 4mv after QPRD
2378
                        const int last_qp= backup_s.qscale;
2379
                        int qpi, qp, dc[6];
2380
                        DCTELEM ac[6][16];
2381
                        const int mvdir= (best_s.mv_dir&MV_DIR_BACKWARD) ? 1 : 0;
2382
                        static const int dquant_tab[4]={-1,1,-2,2};
2383

    
2384
                        assert(backup_s.dquant == 0);
2385

    
2386
                        //FIXME intra
2387
                        s->mv_dir= best_s.mv_dir;
2388
                        s->mv_type = MV_TYPE_16X16;
2389
                        s->mb_intra= best_s.mb_intra;
2390
                        s->mv[0][0][0] = best_s.mv[0][0][0];
2391
                        s->mv[0][0][1] = best_s.mv[0][0][1];
2392
                        s->mv[1][0][0] = best_s.mv[1][0][0];
2393
                        s->mv[1][0][1] = best_s.mv[1][0][1];
2394

    
2395
                        qpi = s->pict_type == FF_B_TYPE ? 2 : 0;
2396
                        for(; qpi<4; qpi++){
2397
                            int dquant= dquant_tab[qpi];
2398
                            qp= last_qp + dquant;
2399
                            if(qp < s->avctx->qmin || qp > s->avctx->qmax)
2400
                                continue;
2401
                            backup_s.dquant= dquant;
2402
                            if(s->mb_intra && s->dc_val[0]){
2403
                                for(i=0; i<6; i++){
2404
                                    dc[i]= s->dc_val[0][ s->block_index[i] ];
2405
                                    memcpy(ac[i], s->ac_val[0][s->block_index[i]], sizeof(DCTELEM)*16);
2406
                                }
2407
                            }
2408

    
2409
                            encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2410
                                         &dmin, &next_block, s->mv[mvdir][0][0], s->mv[mvdir][0][1]);
2411
                            if(best_s.qscale != qp){
2412
                                if(s->mb_intra && s->dc_val[0]){
2413
                                    for(i=0; i<6; i++){
2414
                                        s->dc_val[0][ s->block_index[i] ]= dc[i];
2415
                                        memcpy(s->ac_val[0][s->block_index[i]], ac[i], sizeof(DCTELEM)*16);
2416
                                    }
2417
                                }
2418
                            }
2419
                        }
2420
                    }
2421
                }
2422
                if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT){
2423
                    int mx= s->b_direct_mv_table[xy][0];
2424
                    int my= s->b_direct_mv_table[xy][1];
2425

    
2426
                    backup_s.dquant = 0;
2427
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2428
                    s->mb_intra= 0;
2429
                    ff_mpeg4_set_direct_mv(s, mx, my);
2430
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2431
                                 &dmin, &next_block, mx, my);
2432
                }
2433
                if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT0){
2434
                    backup_s.dquant = 0;
2435
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2436
                    s->mb_intra= 0;
2437
                    ff_mpeg4_set_direct_mv(s, 0, 0);
2438
                    encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2439
                                 &dmin, &next_block, 0, 0);
2440
                }
2441
                if(!best_s.mb_intra && s->flags2&CODEC_FLAG2_SKIP_RD){
2442
                    int coded=0;
2443
                    for(i=0; i<6; i++)
2444
                        coded |= s->block_last_index[i];
2445
                    if(coded){
2446
                        int mx,my;
2447
                        memcpy(s->mv, best_s.mv, sizeof(s->mv));
2448
                        if(CONFIG_MPEG4_ENCODER && best_s.mv_dir & MV_DIRECT){
2449
                            mx=my=0; //FIXME find the one we actually used
2450
                            ff_mpeg4_set_direct_mv(s, mx, my);
2451
                        }else if(best_s.mv_dir&MV_DIR_BACKWARD){
2452
                            mx= s->mv[1][0][0];
2453
                            my= s->mv[1][0][1];
2454
                        }else{
2455
                            mx= s->mv[0][0][0];
2456
                            my= s->mv[0][0][1];
2457
                        }
2458

    
2459
                        s->mv_dir= best_s.mv_dir;
2460
                        s->mv_type = best_s.mv_type;
2461
                        s->mb_intra= 0;
2462
/*                        s->mv[0][0][0] = best_s.mv[0][0][0];
2463
                        s->mv[0][0][1] = best_s.mv[0][0][1];
2464
                        s->mv[1][0][0] = best_s.mv[1][0][0];
2465
                        s->mv[1][0][1] = best_s.mv[1][0][1];*/
2466
                        backup_s.dquant= 0;
2467
                        s->skipdct=1;
2468
                        encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2469
                                        &dmin, &next_block, mx, my);
2470
                        s->skipdct=0;
2471
                    }
2472
                }
2473

    
2474
                s->current_picture.qscale_table[xy]= best_s.qscale;
2475

    
2476
                copy_context_after_encode(s, &best_s, -1);
2477

    
2478
                pb_bits_count= put_bits_count(&s->pb);
2479
                flush_put_bits(&s->pb);
2480
                ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
2481
                s->pb= backup_s.pb;
2482

    
2483
                if(s->data_partitioning){
2484
                    pb2_bits_count= put_bits_count(&s->pb2);
2485
                    flush_put_bits(&s->pb2);
2486
                    ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
2487
                    s->pb2= backup_s.pb2;
2488

    
2489
                    tex_pb_bits_count= put_bits_count(&s->tex_pb);
2490
                    flush_put_bits(&s->tex_pb);
2491
                    ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
2492
                    s->tex_pb= backup_s.tex_pb;
2493
                }
2494
                s->last_bits= put_bits_count(&s->pb);
2495

    
2496
                if (CONFIG_H263_ENCODER &&
2497
                    s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
2498
                    ff_h263_update_motion_val(s);
2499

    
2500
                if(next_block==0){ //FIXME 16 vs linesize16
2501
                    s->dsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad                     , s->linesize  ,16);
2502
                    s->dsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize    , s->uvlinesize, 8);
2503
                    s->dsp.put_pixels_tab[1][0](s->dest[2], s->rd_scratchpad + 16*s->linesize + 8, s->uvlinesize, 8);
2504
                }
2505

    
2506
                if(s->avctx->mb_decision == FF_MB_DECISION_BITS)
2507
                    MPV_decode_mb(s, s->block);
2508
            } else {
2509
                int motion_x = 0, motion_y = 0;
2510
                s->mv_type=MV_TYPE_16X16;
2511
                // only one MB-Type possible
2512

    
2513
                switch(mb_type){
2514
                case CANDIDATE_MB_TYPE_INTRA:
2515
                    s->mv_dir = 0;
2516
                    s->mb_intra= 1;
2517
                    motion_x= s->mv[0][0][0] = 0;
2518
                    motion_y= s->mv[0][0][1] = 0;
2519
                    break;
2520
                case CANDIDATE_MB_TYPE_INTER:
2521
                    s->mv_dir = MV_DIR_FORWARD;
2522
                    s->mb_intra= 0;
2523
                    motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
2524
                    motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
2525
                    break;
2526
                case CANDIDATE_MB_TYPE_INTER_I:
2527
                    s->mv_dir = MV_DIR_FORWARD;
2528
                    s->mv_type = MV_TYPE_FIELD;
2529
                    s->mb_intra= 0;
2530
                    for(i=0; i<2; i++){
2531
                        j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2532
                        s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2533
                        s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2534
                    }
2535
                    break;
2536
                case CANDIDATE_MB_TYPE_INTER4V:
2537
                    s->mv_dir = MV_DIR_FORWARD;
2538
                    s->mv_type = MV_TYPE_8X8;
2539
                    s->mb_intra= 0;
2540
                    for(i=0; i<4; i++){
2541
                        s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2542
                        s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2543
                    }
2544
                    break;
2545
                case CANDIDATE_MB_TYPE_DIRECT:
2546
                    if (CONFIG_MPEG4_ENCODER) {
2547
                        s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2548
                        s->mb_intra= 0;
2549
                        motion_x=s->b_direct_mv_table[xy][0];
2550
                        motion_y=s->b_direct_mv_table[xy][1];
2551
                        ff_mpeg4_set_direct_mv(s, motion_x, motion_y);
2552
                    }
2553
                    break;
2554
                case CANDIDATE_MB_TYPE_DIRECT0:
2555
                    if (CONFIG_MPEG4_ENCODER) {
2556
                        s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2557
                        s->mb_intra= 0;
2558
                        ff_mpeg4_set_direct_mv(s, 0, 0);
2559
                    }
2560
                    break;
2561
                case CANDIDATE_MB_TYPE_BIDIR:
2562
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2563
                    s->mb_intra= 0;
2564
                    s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2565
                    s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2566
                    s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2567
                    s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2568
                    break;
2569
                case CANDIDATE_MB_TYPE_BACKWARD:
2570
                    s->mv_dir = MV_DIR_BACKWARD;
2571
                    s->mb_intra= 0;
2572
                    motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2573
                    motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2574
                    break;
2575
                case CANDIDATE_MB_TYPE_FORWARD:
2576
                    s->mv_dir = MV_DIR_FORWARD;
2577
                    s->mb_intra= 0;
2578
                    motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2579
                    motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2580
//                    printf(" %d %d ", motion_x, motion_y);
2581
                    break;
2582
                case CANDIDATE_MB_TYPE_FORWARD_I:
2583
                    s->mv_dir = MV_DIR_FORWARD;
2584
                    s->mv_type = MV_TYPE_FIELD;
2585
                    s->mb_intra= 0;
2586
                    for(i=0; i<2; i++){
2587
                        j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2588
                        s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2589
                        s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2590
                    }
2591
                    break;
2592
                case CANDIDATE_MB_TYPE_BACKWARD_I:
2593
                    s->mv_dir = MV_DIR_BACKWARD;
2594
                    s->mv_type = MV_TYPE_FIELD;
2595
                    s->mb_intra= 0;
2596
                    for(i=0; i<2; i++){
2597
                        j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2598
                        s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2599
                        s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2600
                    }
2601
                    break;
2602
                case CANDIDATE_MB_TYPE_BIDIR_I:
2603
                    s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2604
                    s->mv_type = MV_TYPE_FIELD;
2605
                    s->mb_intra= 0;
2606
                    for(dir=0; dir<2; dir++){
2607
                        for(i=0; i<2; i++){
2608
                            j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2609
                            s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2610
                            s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2611
                        }
2612
                    }
2613
                    break;
2614
                default:
2615
                    av_log(s->avctx, AV_LOG_ERROR, "illegal MB type\n");
2616
                }
2617

    
2618
                encode_mb(s, motion_x, motion_y);
2619

    
2620
                // RAL: Update last macroblock type
2621
                s->last_mv_dir = s->mv_dir;
2622

    
2623
                if (CONFIG_H263_ENCODER &&
2624
                    s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
2625
                    ff_h263_update_motion_val(s);
2626

    
2627
                MPV_decode_mb(s, s->block);
2628
            }
2629

    
2630
            /* clean the MV table in IPS frames for direct mode in B frames */
2631
            if(s->mb_intra /* && I,P,S_TYPE */){
2632
                s->p_mv_table[xy][0]=0;
2633
                s->p_mv_table[xy][1]=0;
2634
            }
2635

    
2636
            if(s->flags&CODEC_FLAG_PSNR){
2637
                int w= 16;
2638
                int h= 16;
2639

    
2640
                if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
2641
                if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
2642

    
2643
                s->current_picture.error[0] += sse(
2644
                    s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16,
2645
                    s->dest[0], w, h, s->linesize);
2646
                s->current_picture.error[1] += sse(
2647
                    s, s->new_picture.data[1] + s->mb_x*8  + s->mb_y*s->uvlinesize*chr_h,
2648
                    s->dest[1], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
2649
                s->current_picture.error[2] += sse(
2650
                    s, s->new_picture.data[2] + s->mb_x*8  + s->mb_y*s->uvlinesize*chr_h,
2651
                    s->dest[2], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
2652
            }
2653
            if(s->loop_filter){
2654
                if(CONFIG_H263_ENCODER && s->out_format == FMT_H263)
2655
                    ff_h263_loop_filter(s);
2656
            }
2657
//printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, put_bits_count(&s->pb));
2658
        }
2659
    }
2660

    
2661
    //not beautiful here but we must write it before flushing so it has to be here
2662
    if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == FF_I_TYPE)
2663
        msmpeg4_encode_ext_header(s);
2664

    
2665
    write_slice_end(s);
2666

    
2667
    /* Send the last GOB if RTP */
2668
    if (s->avctx->rtp_callback) {
2669
        int number_mb = (mb_y - s->resync_mb_y)*s->mb_width - s->resync_mb_x;
2670
        pdif = put_bits_ptr(&s->pb) - s->ptr_lastgob;
2671
        /* Call the RTP callback to send the last GOB */
2672
        emms_c();
2673
        s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, pdif, number_mb);
2674
    }
2675

    
2676
    return 0;
2677
}
2678

    
2679
#define MERGE(field) dst->field += src->field; src->field=0
2680
static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src){
2681
    MERGE(me.scene_change_score);
2682
    MERGE(me.mc_mb_var_sum_temp);
2683
    MERGE(me.mb_var_sum_temp);
2684
}
2685

    
2686
static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src){
2687
    int i;
2688

    
2689
    MERGE(dct_count[0]); //note, the other dct vars are not part of the context
2690
    MERGE(dct_count[1]);
2691
    MERGE(mv_bits);
2692
    MERGE(i_tex_bits);
2693
    MERGE(p_tex_bits);
2694
    MERGE(i_count);
2695
    MERGE(f_count);
2696
    MERGE(b_count);
2697
    MERGE(skip_count);
2698
    MERGE(misc_bits);
2699
    MERGE(error_count);
2700
    MERGE(padding_bug_score);
2701
    MERGE(current_picture.error[0]);
2702
    MERGE(current_picture.error[1]);
2703
    MERGE(current_picture.error[2]);
2704

    
2705
    if(dst->avctx->noise_reduction){
2706
        for(i=0; i<64; i++){
2707
            MERGE(dct_error_sum[0][i]);
2708
            MERGE(dct_error_sum[1][i]);
2709
        }
2710
    }
2711

    
2712
    assert(put_bits_count(&src->pb) % 8 ==0);
2713
    assert(put_bits_count(&dst->pb) % 8 ==0);
2714
    ff_copy_bits(&dst->pb, src->pb.buf, put_bits_count(&src->pb));
2715
    flush_put_bits(&dst->pb);
2716
}
2717

    
2718
static int estimate_qp(MpegEncContext *s, int dry_run){
2719
    if (s->next_lambda){
2720
        s->current_picture_ptr->quality=
2721
        s->current_picture.quality = s->next_lambda;
2722
        if(!dry_run) s->next_lambda= 0;
2723
    } else if (!s->fixed_qscale) {
2724
        s->current_picture_ptr->quality=
2725
        s->current_picture.quality = ff_rate_estimate_qscale(s, dry_run);
2726
        if (s->current_picture.quality < 0)
2727
            return -1;
2728
    }
2729

    
2730
    if(s->adaptive_quant){
2731
        switch(s->codec_id){
2732
        case CODEC_ID_MPEG4:
2733
            if (CONFIG_MPEG4_ENCODER)
2734
                ff_clean_mpeg4_qscales(s);
2735
            break;
2736
        case CODEC_ID_H263:
2737
        case CODEC_ID_H263P:
2738
        case CODEC_ID_FLV1:
2739
            if (CONFIG_H263_ENCODER)
2740
                ff_clean_h263_qscales(s);
2741
            break;
2742
        default:
2743
            ff_init_qscale_tab(s);
2744
        }
2745

    
2746
        s->lambda= s->lambda_table[0];
2747
        //FIXME broken
2748
    }else
2749
        s->lambda= s->current_picture.quality;
2750
//printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality);
2751
    update_qscale(s);
2752
    return 0;
2753
}
2754

    
2755
/* must be called before writing the header */
2756
static void set_frame_distances(MpegEncContext * s){
2757
    assert(s->current_picture_ptr->pts != AV_NOPTS_VALUE);
2758
    s->time= s->current_picture_ptr->pts*s->avctx->time_base.num;
2759

    
2760
    if(s->pict_type==FF_B_TYPE){
2761
        s->pb_time= s->pp_time - (s->last_non_b_time - s->time);
2762
        assert(s->pb_time > 0 && s->pb_time < s->pp_time);
2763
    }else{
2764
        s->pp_time= s->time - s->last_non_b_time;
2765
        s->last_non_b_time= s->time;
2766
        assert(s->picture_number==0 || s->pp_time > 0);
2767
    }
2768
}
2769

    
2770
static int encode_picture(MpegEncContext *s, int picture_number)
2771
{
2772
    int i;
2773
    int bits;
2774

    
2775
    s->picture_number = picture_number;
2776

    
2777
    /* Reset the average MB variance */
2778
    s->me.mb_var_sum_temp    =
2779
    s->me.mc_mb_var_sum_temp = 0;
2780

    
2781
    /* we need to initialize some time vars before we can encode b-frames */
2782
    // RAL: Condition added for MPEG1VIDEO
2783
    if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->h263_msmpeg4))
2784
        set_frame_distances(s);
2785
    if(CONFIG_MPEG4_ENCODER && s->codec_id == CODEC_ID_MPEG4)
2786
        ff_set_mpeg4_time(s);
2787

    
2788
    s->me.scene_change_score=0;
2789

    
2790
//    s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME rate distortion
2791

    
2792
    if(s->pict_type==FF_I_TYPE){
2793
        if(s->msmpeg4_version >= 3) s->no_rounding=1;
2794
        else                        s->no_rounding=0;
2795
    }else if(s->pict_type!=FF_B_TYPE){
2796
        if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
2797
            s->no_rounding ^= 1;
2798
    }
2799

    
2800
    if(s->flags & CODEC_FLAG_PASS2){
2801
        if (estimate_qp(s,1) < 0)
2802
            return -1;
2803
        ff_get_2pass_fcode(s);
2804
    }else if(!(s->flags & CODEC_FLAG_QSCALE)){
2805
        if(s->pict_type==FF_B_TYPE)
2806
            s->lambda= s->last_lambda_for[s->pict_type];
2807
        else
2808
            s->lambda= s->last_lambda_for[s->last_non_b_pict_type];
2809
        update_qscale(s);
2810
    }
2811

    
2812
    s->mb_intra=0; //for the rate distortion & bit compare functions
2813
    for(i=1; i<s->avctx->thread_count; i++){
2814
        ff_update_duplicate_context(s->thread_context[i], s);
2815
    }
2816

    
2817
    if(ff_init_me(s)<0)
2818
        return -1;
2819

    
2820
    /* Estimate motion for every MB */
2821
    if(s->pict_type != FF_I_TYPE){
2822
        s->lambda = (s->lambda * s->avctx->me_penalty_compensation + 128)>>8;
2823
        s->lambda2= (s->lambda2* (int64_t)s->avctx->me_penalty_compensation + 128)>>8;
2824
        if(s->pict_type != FF_B_TYPE && s->avctx->me_threshold==0){
2825
            if((s->avctx->pre_me && s->last_non_b_pict_type==FF_I_TYPE) || s->avctx->pre_me==2){
2826
                s->avctx->execute(s->avctx, pre_estimate_motion_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2827
            }
2828
        }
2829

    
2830
        s->avctx->execute(s->avctx, estimate_motion_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2831
    }else /* if(s->pict_type == FF_I_TYPE) */{
2832
        /* I-Frame */
2833
        for(i=0; i<s->mb_stride*s->mb_height; i++)
2834
            s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2835

    
2836
        if(!s->fixed_qscale){
2837
            /* finding spatial complexity for I-frame rate control */
2838
            s->avctx->execute(s->avctx, mb_var_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2839
        }
2840
    }
2841
    for(i=1; i<s->avctx->thread_count; i++){
2842
        merge_context_after_me(s, s->thread_context[i]);
2843
    }
2844
    s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum= s->me.mc_mb_var_sum_temp;
2845
    s->current_picture.   mb_var_sum= s->current_picture_ptr->   mb_var_sum= s->me.   mb_var_sum_temp;
2846
    emms_c();
2847

    
2848
    if(s->me.scene_change_score > s->avctx->scenechange_threshold && s->pict_type == FF_P_TYPE){
2849
        s->pict_type= FF_I_TYPE;
2850
        for(i=0; i<s->mb_stride*s->mb_height; i++)
2851
            s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2852
//printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum);
2853
    }
2854

    
2855
    if(!s->umvplus){
2856
        if(s->pict_type==FF_P_TYPE || s->pict_type==FF_S_TYPE) {
2857
            s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER);
2858

    
2859
            if(s->flags & CODEC_FLAG_INTERLACED_ME){
2860
                int a,b;
2861
                a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select
2862
                b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I);
2863
                s->f_code= FFMAX3(s->f_code, a, b);
2864
            }
2865

    
2866
            ff_fix_long_p_mvs(s);
2867
            ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0);
2868
            if(s->flags & CODEC_FLAG_INTERLACED_ME){
2869
                int j;
2870
                for(i=0; i<2; i++){
2871
                    for(j=0; j<2; j++)
2872
                        ff_fix_long_mvs(s, s->p_field_select_table[i], j,
2873
                                        s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0);
2874
                }
2875
            }
2876
        }
2877

    
2878
        if(s->pict_type==FF_B_TYPE){
2879
            int a, b;
2880

    
2881
            a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD);
2882
            b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2883
            s->f_code = FFMAX(a, b);
2884

    
2885
            a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD);
2886
            b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2887
            s->b_code = FFMAX(a, b);
2888

    
2889
            ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1);
2890
            ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1);
2891
            ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2892
            ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2893
            if(s->flags & CODEC_FLAG_INTERLACED_ME){
2894
                int dir, j;
2895
                for(dir=0; dir<2; dir++){
2896
                    for(i=0; i<2; i++){
2897
                        for(j=0; j<2; j++){
2898
                            int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I)
2899
                                          : (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I);
2900
                            ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j,
2901
                                            s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1);
2902
                        }
2903
                    }
2904
                }
2905
            }
2906
        }
2907
    }
2908

    
2909
    if (estimate_qp(s, 0) < 0)
2910
        return -1;
2911

    
2912
    if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==FF_I_TYPE && !(s->flags & CODEC_FLAG_QSCALE))
2913
        s->qscale= 3; //reduce clipping problems
2914

    
2915
    if (s->out_format == FMT_MJPEG) {
2916
        /* for mjpeg, we do include qscale in the matrix */
2917
        for(i=1;i<64;i++){
2918
            int j= s->dsp.idct_permutation[i];
2919

    
2920
            s->intra_matrix[j] = av_clip_uint8((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
2921
        }
2922
        s->y_dc_scale_table=
2923
        s->c_dc_scale_table= ff_mpeg2_dc_scale_table[s->intra_dc_precision];
2924
        s->intra_matrix[0] = ff_mpeg2_dc_scale_table[s->intra_dc_precision][8];
2925
        ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
2926
                       s->intra_matrix, s->intra_quant_bias, 8, 8, 1);
2927
        s->qscale= 8;
2928
    }
2929

    
2930
    //FIXME var duplication
2931
    s->current_picture_ptr->key_frame=
2932
    s->current_picture.key_frame= s->pict_type == FF_I_TYPE; //FIXME pic_ptr
2933
    s->current_picture_ptr->pict_type=
2934
    s->current_picture.pict_type= s->pict_type;
2935

    
2936
    if(s->current_picture.key_frame)
2937
        s->picture_in_gop_number=0;
2938

    
2939
    s->last_bits= put_bits_count(&s->pb);
2940
    switch(s->out_format) {
2941
    case FMT_MJPEG:
2942
        if (CONFIG_MJPEG_ENCODER)
2943
            ff_mjpeg_encode_picture_header(s);
2944
        break;
2945
    case FMT_H261:
2946
        if (CONFIG_H261_ENCODER)
2947
            ff_h261_encode_picture_header(s, picture_number);
2948
        break;
2949
    case FMT_H263:
2950
        if (CONFIG_WMV2_ENCODER && s->codec_id == CODEC_ID_WMV2)
2951
            ff_wmv2_encode_picture_header(s, picture_number);
2952
        else if (CONFIG_MSMPEG4_ENCODER && s->h263_msmpeg4)
2953
            msmpeg4_encode_picture_header(s, picture_number);
2954
        else if (CONFIG_MPEG4_ENCODER && s->h263_pred)
2955
            mpeg4_encode_picture_header(s, picture_number);
2956
        else if (CONFIG_RV10_ENCODER && s->codec_id == CODEC_ID_RV10)
2957
            rv10_encode_picture_header(s, picture_number);
2958
        else if (CONFIG_RV20_ENCODER && s->codec_id == CODEC_ID_RV20)
2959
            rv20_encode_picture_header(s, picture_number);
2960
        else if (CONFIG_FLV_ENCODER && s->codec_id == CODEC_ID_FLV1)
2961
            ff_flv_encode_picture_header(s, picture_number);
2962
        else if (CONFIG_H263_ENCODER)
2963
            h263_encode_picture_header(s, picture_number);
2964
        break;
2965
    case FMT_MPEG1:
2966
        if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
2967
            mpeg1_encode_picture_header(s, picture_number);
2968
        break;
2969
    case FMT_H264:
2970
        break;
2971
    default:
2972
        assert(0);
2973
    }
2974
    bits= put_bits_count(&s->pb);
2975
    s->header_bits= bits - s->last_bits;
2976

    
2977
    for(i=1; i<s->avctx->thread_count; i++){
2978
        update_duplicate_context_after_me(s->thread_context[i], s);
2979
    }
2980
    s->avctx->execute(s->avctx, encode_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2981
    for(i=1; i<s->avctx->thread_count; i++){
2982
        merge_context_after_encode(s, s->thread_context[i]);
2983
    }
2984
    emms_c();
2985
    return 0;
2986
}
2987

    
2988
static void denoise_dct_c(MpegEncContext *s, DCTELEM *block){
2989
    const int intra= s->mb_intra;
2990
    int i;
2991

    
2992
    s->dct_count[intra]++;
2993

    
2994
    for(i=0; i<64; i++){
2995
        int level= block[i];
2996

    
2997
        if(level){
2998
            if(level>0){
2999
                s->dct_error_sum[intra][i] += level;
3000
                level -= s->dct_offset[intra][i];
3001
                if(level<0) level=0;
3002
            }else{
3003
                s->dct_error_sum[intra][i] -= level;
3004
                level += s->dct_offset[intra][i];
3005
                if(level>0) level=0;
3006
            }
3007
            block[i]= level;
3008
        }
3009
    }
3010
}
3011

    
3012
static int dct_quantize_trellis_c(MpegEncContext *s,
3013
                                  DCTELEM *block, int n,
3014
                                  int qscale, int *overflow){
3015
    const int *qmat;
3016
    const uint8_t *scantable= s->intra_scantable.scantable;
3017
    const uint8_t *perm_scantable= s->intra_scantable.permutated;
3018
    int max=0;
3019
    unsigned int threshold1, threshold2;
3020
    int bias=0;
3021
    int run_tab[65];
3022
    int level_tab[65];
3023
    int score_tab[65];
3024
    int survivor[65];
3025
    int survivor_count;
3026
    int last_run=0;
3027
    int last_level=0;
3028
    int last_score= 0;
3029
    int last_i;
3030
    int coeff[2][64];
3031
    int coeff_count[64];
3032
    int qmul, qadd, start_i, last_non_zero, i, dc;
3033
    const int esc_length= s->ac_esc_length;
3034
    uint8_t * length;
3035
    uint8_t * last_length;
3036
    const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6);
3037

    
3038
    s->dsp.fdct (block);
3039

    
3040
    if(s->dct_error_sum)
3041
        s->denoise_dct(s, block);
3042
    qmul= qscale*16;
3043
    qadd= ((qscale-1)|1)*8;
3044

    
3045
    if (s->mb_intra) {
3046
        int q;
3047
        if (!s->h263_aic) {
3048
            if (n < 4)
3049
                q = s->y_dc_scale;
3050
            else
3051
                q = s->c_dc_scale;
3052
            q = q << 3;
3053
        } else{
3054
            /* For AIC we skip quant/dequant of INTRADC */
3055
            q = 1 << 3;
3056
            qadd=0;
3057
        }
3058

    
3059
        /* note: block[0] is assumed to be positive */
3060
        block[0] = (block[0] + (q >> 1)) / q;
3061
        start_i = 1;
3062
        last_non_zero = 0;
3063
        qmat = s->q_intra_matrix[qscale];
3064
        if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3065
            bias= 1<<(QMAT_SHIFT-1);
3066
        length     = s->intra_ac_vlc_length;
3067
        last_length= s->intra_ac_vlc_last_length;
3068
    } else {
3069
        start_i = 0;
3070
        last_non_zero = -1;
3071
        qmat = s->q_inter_matrix[qscale];
3072
        length     = s->inter_ac_vlc_length;
3073
        last_length= s->inter_ac_vlc_last_length;
3074
    }
3075
    last_i= start_i;
3076

    
3077
    threshold1= (1<<QMAT_SHIFT) - bias - 1;
3078
    threshold2= (threshold1<<1);
3079

    
3080
    for(i=63; i>=start_i; i--) {
3081
        const int j = scantable[i];
3082
        int level = block[j] * qmat[j];
3083

    
3084
        if(((unsigned)(level+threshold1))>threshold2){
3085
            last_non_zero = i;
3086
            break;
3087
        }
3088
    }
3089

    
3090
    for(i=start_i; i<=last_non_zero; i++) {
3091
        const int j = scantable[i];
3092
        int level = block[j] * qmat[j];
3093

    
3094
//        if(   bias+level >= (1<<(QMAT_SHIFT - 3))
3095
//           || bias-level >= (1<<(QMAT_SHIFT - 3))){
3096
        if(((unsigned)(level+threshold1))>threshold2){
3097
            if(level>0){
3098
                level= (bias + level)>>QMAT_SHIFT;
3099
                coeff[0][i]= level;
3100
                coeff[1][i]= level-1;
3101
//                coeff[2][k]= level-2;
3102
            }else{
3103
                level= (bias - level)>>QMAT_SHIFT;
3104
                coeff[0][i]= -level;
3105
                coeff[1][i]= -level+1;
3106
//                coeff[2][k]= -level+2;
3107
            }
3108
            coeff_count[i]= FFMIN(level, 2);
3109
            assert(coeff_count[i]);
3110
            max |=level;
3111
        }else{
3112
            coeff[0][i]= (level>>31)|1;
3113
            coeff_count[i]= 1;
3114
        }
3115
    }
3116

    
3117
    *overflow= s->max_qcoeff < max; //overflow might have happened
3118

    
3119
    if(last_non_zero < start_i){
3120
        memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3121
        return last_non_zero;
3122
    }
3123

    
3124
    score_tab[start_i]= 0;
3125
    survivor[0]= start_i;
3126
    survivor_count= 1;
3127

    
3128
    for(i=start_i; i<=last_non_zero; i++){
3129
        int level_index, j, zero_distortion;
3130
        int dct_coeff= FFABS(block[ scantable[i] ]);
3131
        int best_score=256*256*256*120;
3132

    
3133
        if (   s->dsp.fdct == fdct_ifast
3134
#ifndef FAAN_POSTSCALE
3135
            || s->dsp.fdct == ff_faandct
3136
#endif
3137
           )
3138
            dct_coeff= (dct_coeff*ff_inv_aanscales[ scantable[i] ]) >> 12;
3139
        zero_distortion= dct_coeff*dct_coeff;
3140

    
3141
        for(level_index=0; level_index < coeff_count[i]; level_index++){
3142
            int distortion;
3143
            int level= coeff[level_index][i];
3144
            const int alevel= FFABS(level);
3145
            int unquant_coeff;
3146

    
3147
            assert(level);
3148

    
3149
            if(s->out_format == FMT_H263){
3150
                unquant_coeff= alevel*qmul + qadd;
3151
            }else{ //MPEG1
3152
                j= s->dsp.idct_permutation[ scantable[i] ]; //FIXME optimize
3153
                if(s->mb_intra){
3154
                        unquant_coeff = (int)(  alevel  * qscale * s->intra_matrix[j]) >> 3;
3155
                        unquant_coeff =   (unquant_coeff - 1) | 1;
3156
                }else{
3157
                        unquant_coeff = (((  alevel  << 1) + 1) * qscale * ((int) s->inter_matrix[j])) >> 4;
3158
                        unquant_coeff =   (unquant_coeff - 1) | 1;
3159
                }
3160
                unquant_coeff<<= 3;
3161
            }
3162

    
3163
            distortion= (unquant_coeff - dct_coeff) * (unquant_coeff - dct_coeff) - zero_distortion;
3164
            level+=64;
3165
            if((level&(~127)) == 0){
3166
                for(j=survivor_count-1; j>=0; j--){
3167
                    int run= i - survivor[j];
3168
                    int score= distortion + length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3169
                    score += score_tab[i-run];
3170

    
3171
                    if(score < best_score){
3172
                        best_score= score;
3173
                        run_tab[i+1]= run;
3174
                        level_tab[i+1]= level-64;
3175
                    }
3176
                }
3177

    
3178
                if(s->out_format == FMT_H263){
3179
                    for(j=survivor_count-1; j>=0; j--){
3180
                        int run= i - survivor[j];
3181
                        int score= distortion + last_length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3182
                        score += score_tab[i-run];
3183
                        if(score < last_score){
3184
                            last_score= score;
3185
                            last_run= run;
3186
                            last_level= level-64;
3187
                            last_i= i+1;
3188
                        }
3189
                    }
3190
                }
3191
            }else{
3192
                distortion += esc_length*lambda;
3193
                for(j=survivor_count-1; j>=0; j--){
3194
                    int run= i - survivor[j];
3195
                    int score= distortion + score_tab[i-run];
3196

    
3197
                    if(score < best_score){
3198
                        best_score= score;
3199
                        run_tab[i+1]= run;
3200
                        level_tab[i+1]= level-64;
3201
                    }
3202
                }
3203

    
3204
                if(s->out_format == FMT_H263){
3205
                  for(j=survivor_count-1; j>=0; j--){
3206
                        int run= i - survivor[j];
3207
                        int score= distortion + score_tab[i-run];
3208
                        if(score < last_score){
3209
                            last_score= score;
3210
                            last_run= run;
3211
                            last_level= level-64;
3212
                            last_i= i+1;
3213
                        }
3214
                    }
3215
                }
3216
            }
3217
        }
3218

    
3219
        score_tab[i+1]= best_score;
3220

    
3221
        //Note: there is a vlc code in mpeg4 which is 1 bit shorter then another one with a shorter run and the same level
3222
        if(last_non_zero <= 27){
3223
            for(; survivor_count; survivor_count--){
3224
                if(score_tab[ survivor[survivor_count-1] ] <= best_score)
3225
                    break;
3226
            }
3227
        }else{
3228
            for(; survivor_count; survivor_count--){
3229
                if(score_tab[ survivor[survivor_count-1] ] <= best_score + lambda)
3230
                    break;
3231
            }
3232
        }
3233

    
3234
        survivor[ survivor_count++ ]= i+1;
3235
    }
3236

    
3237
    if(s->out_format != FMT_H263){
3238
        last_score= 256*256*256*120;
3239
        for(i= survivor[0]; i<=last_non_zero + 1; i++){
3240
            int score= score_tab[i];
3241
            if(i) score += lambda*2; //FIXME exacter?
3242

    
3243
            if(score < last_score){
3244
                last_score= score;
3245
                last_i= i;
3246
                last_level= level_tab[i];
3247
                last_run= run_tab[i];
3248
            }
3249
        }
3250
    }
3251

    
3252
    s->coded_score[n] = last_score;
3253

    
3254
    dc= FFABS(block[0]);
3255
    last_non_zero= last_i - 1;
3256
    memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3257

    
3258
    if(last_non_zero < start_i)
3259
        return last_non_zero;
3260

    
3261
    if(last_non_zero == 0 && start_i == 0){
3262
        int best_level= 0;
3263
        int best_score= dc * dc;
3264

    
3265
        for(i=0; i<coeff_count[0]; i++){
3266
            int level= coeff[i][0];
3267
            int alevel= FFABS(level);
3268
            int unquant_coeff, score, distortion;
3269

    
3270
            if(s->out_format == FMT_H263){
3271
                    unquant_coeff= (alevel*qmul + qadd)>>3;
3272
            }else{ //MPEG1
3273
                    unquant_coeff = (((  alevel  << 1) + 1) * qscale * ((int) s->inter_matrix[0])) >> 4;
3274
                    unquant_coeff =   (unquant_coeff - 1) | 1;
3275
            }
3276
            unquant_coeff = (unquant_coeff + 4) >> 3;
3277
            unquant_coeff<<= 3 + 3;
3278

    
3279
            distortion= (unquant_coeff - dc) * (unquant_coeff - dc);
3280
            level+=64;
3281
            if((level&(~127)) == 0) score= distortion + last_length[UNI_AC_ENC_INDEX(0, level)]*lambda;
3282
            else                    score= distortion + esc_length*lambda;
3283

    
3284
            if(score < best_score){
3285
                best_score= score;
3286
                best_level= level - 64;
3287
            }
3288
        }
3289
        block[0]= best_level;
3290
        s->coded_score[n] = best_score - dc*dc;
3291
        if(best_level == 0) return -1;
3292
        else                return last_non_zero;
3293
    }
3294

    
3295
    i= last_i;
3296
    assert(last_level);
3297

    
3298
    block[ perm_scantable[last_non_zero] ]= last_level;
3299
    i -= last_run + 1;
3300

    
3301
    for(; i>start_i; i -= run_tab[i] + 1){
3302
        block[ perm_scantable[i-1] ]= level_tab[i];
3303
    }
3304

    
3305
    return last_non_zero;
3306
}
3307

    
3308
//#define REFINE_STATS 1
3309
static int16_t basis[64][64];
3310

    
3311
static void build_basis(uint8_t *perm){
3312
    int i, j, x, y;
3313
    emms_c();
3314
    for(i=0; i<8; i++){
3315
        for(j=0; j<8; j++){
3316
            for(y=0; y<8; y++){
3317
                for(x=0; x<8; x++){
3318
                    double s= 0.25*(1<<BASIS_SHIFT);
3319
                    int index= 8*i + j;
3320
                    int perm_index= perm[index];
3321
                    if(i==0) s*= sqrt(0.5);
3322
                    if(j==0) s*= sqrt(0.5);
3323
                    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)));
3324
                }
3325
            }
3326
        }
3327
    }
3328
}
3329

    
3330
static int dct_quantize_refine(MpegEncContext *s, //FIXME breaks denoise?
3331
                        DCTELEM *block, int16_t *weight, DCTELEM *orig,
3332
                        int n, int qscale){
3333
    int16_t rem[64];
3334
    LOCAL_ALIGNED_16(DCTELEM, d1, [64]);
3335
    const uint8_t *scantable= s->intra_scantable.scantable;
3336
    const uint8_t *perm_scantable= s->intra_scantable.permutated;
3337
//    unsigned int threshold1, threshold2;
3338
//    int bias=0;
3339
    int run_tab[65];
3340
    int prev_run=0;
3341
    int prev_level=0;
3342
    int qmul, qadd, start_i, last_non_zero, i, dc;
3343
    uint8_t * length;
3344
    uint8_t * last_length;
3345
    int lambda;
3346
    int rle_index, run, q = 1, sum; //q is only used when s->mb_intra is true
3347
#ifdef REFINE_STATS
3348
static int count=0;
3349
static int after_last=0;
3350
static int to_zero=0;
3351
static int from_zero=0;
3352
static int raise=0;
3353
static int lower=0;
3354
static int messed_sign=0;
3355
#endif
3356

    
3357
    if(basis[0][0] == 0)
3358
        build_basis(s->dsp.idct_permutation);
3359

    
3360
    qmul= qscale*2;
3361
    qadd= (qscale-1)|1;
3362
    if (s->mb_intra) {
3363
        if (!s->h263_aic) {
3364
            if (n < 4)
3365
                q = s->y_dc_scale;
3366
            else
3367
                q = s->c_dc_scale;
3368
        } else{
3369
            /* For AIC we skip quant/dequant of INTRADC */
3370
            q = 1;
3371
            qadd=0;
3372
        }
3373
        q <<= RECON_SHIFT-3;
3374
        /* note: block[0] is assumed to be positive */
3375
        dc= block[0]*q;
3376
//        block[0] = (block[0] + (q >> 1)) / q;
3377
        start_i = 1;
3378
//        if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3379
//            bias= 1<<(QMAT_SHIFT-1);
3380
        length     = s->intra_ac_vlc_length;
3381
        last_length= s->intra_ac_vlc_last_length;
3382
    } else {
3383
        dc= 0;
3384
        start_i = 0;
3385
        length     = s->inter_ac_vlc_length;
3386
        last_length= s->inter_ac_vlc_last_length;
3387
    }
3388
    last_non_zero = s->block_last_index[n];
3389

    
3390
#ifdef REFINE_STATS
3391
{START_TIMER
3392
#endif
3393
    dc += (1<<(RECON_SHIFT-1));
3394
    for(i=0; i<64; i++){
3395
        rem[i]= dc - (orig[i]<<RECON_SHIFT); //FIXME  use orig dirrectly instead of copying to rem[]
3396
    }
3397
#ifdef REFINE_STATS
3398
STOP_TIMER("memset rem[]")}
3399
#endif
3400
    sum=0;
3401
    for(i=0; i<64; i++){
3402
        int one= 36;
3403
        int qns=4;
3404
        int w;
3405

    
3406
        w= FFABS(weight[i]) + qns*one;
3407
        w= 15 + (48*qns*one + w/2)/w; // 16 .. 63
3408

    
3409
        weight[i] = w;
3410
//        w=weight[i] = (63*qns + (w/2)) / w;
3411

    
3412
        assert(w>0);
3413
        assert(w<(1<<6));
3414
        sum += w*w;
3415
    }
3416
    lambda= sum*(uint64_t)s->lambda2 >> (FF_LAMBDA_SHIFT - 6 + 6 + 6 + 6);
3417
#ifdef REFINE_STATS
3418
{START_TIMER
3419
#endif
3420
    run=0;
3421
    rle_index=0;
3422
    for(i=start_i; i<=last_non_zero; i++){
3423
        int j= perm_scantable[i];
3424
        const int level= block[j];
3425
        int coeff;
3426

    
3427
        if(level){
3428
            if(level<0) coeff= qmul*level - qadd;
3429
            else        coeff= qmul*level + qadd;
3430
            run_tab[rle_index++]=run;
3431
            run=0;
3432

    
3433
            s->dsp.add_8x8basis(rem, basis[j], coeff);
3434
        }else{
3435
            run++;
3436
        }
3437
    }
3438
#ifdef REFINE_STATS
3439
if(last_non_zero>0){
3440
STOP_TIMER("init rem[]")
3441
}
3442
}
3443

    
3444
{START_TIMER
3445
#endif
3446
    for(;;){
3447
        int best_score=s->dsp.try_8x8basis(rem, weight, basis[0], 0);
3448
        int best_coeff=0;
3449
        int best_change=0;
3450
        int run2, best_unquant_change=0, analyze_gradient;
3451
#ifdef REFINE_STATS
3452
{START_TIMER
3453
#endif
3454
        analyze_gradient = last_non_zero > 2 || s->avctx->quantizer_noise_shaping >= 3;
3455

    
3456
        if(analyze_gradient){
3457
#ifdef REFINE_STATS
3458
{START_TIMER
3459
#endif
3460
            for(i=0; i<64; i++){
3461
                int w= weight[i];
3462

    
3463
                d1[i] = (rem[i]*w*w + (1<<(RECON_SHIFT+12-1)))>>(RECON_SHIFT+12);
3464
            }
3465
#ifdef REFINE_STATS
3466
STOP_TIMER("rem*w*w")}
3467
{START_TIMER
3468
#endif
3469
            s->dsp.fdct(d1);
3470
#ifdef REFINE_STATS
3471
STOP_TIMER("dct")}
3472
#endif
3473
        }
3474

    
3475
        if(start_i){
3476
            const int level= block[0];
3477
            int change, old_coeff;
3478

    
3479
            assert(s->mb_intra);
3480

    
3481
            old_coeff= q*level;
3482

    
3483
            for(change=-1; change<=1; change+=2){
3484
                int new_level= level + change;
3485
                int score, new_coeff;
3486

    
3487
                new_coeff= q*new_level;
3488
                if(new_coeff >= 2048 || new_coeff < 0)
3489
                    continue;
3490

    
3491
                score= s->dsp.try_8x8basis(rem, weight, basis[0], new_coeff - old_coeff);
3492
                if(score<best_score){
3493
                    best_score= score;
3494
                    best_coeff= 0;
3495
                    best_change= change;
3496
                    best_unquant_change= new_coeff - old_coeff;
3497
                }
3498
            }
3499
        }
3500

    
3501
        run=0;
3502
        rle_index=0;
3503
        run2= run_tab[rle_index++];
3504
        prev_level=0;
3505
        prev_run=0;
3506

    
3507
        for(i=start_i; i<64; i++){
3508
            int j= perm_scantable[i];
3509
            const int level= block[j];
3510
            int change, old_coeff;
3511

    
3512
            if(s->avctx->quantizer_noise_shaping < 3 && i > last_non_zero + 1)
3513
                break;
3514

    
3515
            if(level){
3516
                if(level<0) old_coeff= qmul*level - qadd;
3517
                else        old_coeff= qmul*level + qadd;
3518
                run2= run_tab[rle_index++]; //FIXME ! maybe after last
3519
            }else{
3520
                old_coeff=0;
3521
                run2--;
3522
                assert(run2>=0 || i >= last_non_zero );
3523
            }
3524

    
3525
            for(change=-1; change<=1; change+=2){
3526
                int new_level= level + change;
3527
                int score, new_coeff, unquant_change;
3528

    
3529
                score=0;
3530
                if(s->avctx->quantizer_noise_shaping < 2 && FFABS(new_level) > FFABS(level))
3531
                   continue;
3532

    
3533
                if(new_level){
3534
                    if(new_level<0) new_coeff= qmul*new_level - qadd;
3535
                    else            new_coeff= qmul*new_level + qadd;
3536
                    if(new_coeff >= 2048 || new_coeff <= -2048)
3537
                        continue;
3538
                    //FIXME check for overflow
3539

    
3540
                    if(level){
3541
                        if(level < 63 && level > -63){
3542
                            if(i < last_non_zero)
3543
                                score +=   length[UNI_AC_ENC_INDEX(run, new_level+64)]
3544
                                         - length[UNI_AC_ENC_INDEX(run, level+64)];
3545
                            else
3546
                                score +=   last_length[UNI_AC_ENC_INDEX(run, new_level+64)]
3547
                                         - last_length[UNI_AC_ENC_INDEX(run, level+64)];
3548
                        }
3549
                    }else{
3550
                        assert(FFABS(new_level)==1);
3551

    
3552
                        if(analyze_gradient){
3553
                            int g= d1[ scantable[i] ];
3554
                            if(g && (g^new_level) >= 0)
3555
                                continue;
3556
                        }
3557

    
3558
                        if(i < last_non_zero){
3559
                            int next_i= i + run2 + 1;
3560
                            int next_level= block[ perm_scantable[next_i] ] + 64;
3561

    
3562
                            if(next_level&(~127))
3563
                                next_level= 0;
3564

    
3565
                            if(next_i < last_non_zero)
3566
                                score +=   length[UNI_AC_ENC_INDEX(run, 65)]
3567
                                         + length[UNI_AC_ENC_INDEX(run2, next_level)]
3568
                                         - length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3569
                            else
3570
                                score +=  length[UNI_AC_ENC_INDEX(run, 65)]
3571
                                        + last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3572
                                        - last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3573
                        }else{
3574
                            score += last_length[UNI_AC_ENC_INDEX(run, 65)];
3575
                            if(prev_level){
3576
                                score +=  length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3577
                                        - last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3578
                            }
3579
                        }
3580
                    }
3581
                }else{
3582
                    new_coeff=0;
3583
                    assert(FFABS(level)==1);
3584

    
3585
                    if(i < last_non_zero){
3586
                        int next_i= i + run2 + 1;
3587
                        int next_level= block[ perm_scantable[next_i] ] + 64;
3588

    
3589
                        if(next_level&(~127))
3590
                            next_level= 0;
3591

    
3592
                        if(next_i < last_non_zero)
3593
                            score +=   length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3594
                                     - length[UNI_AC_ENC_INDEX(run2, next_level)]
3595
                                     - length[UNI_AC_ENC_INDEX(run, 65)];
3596
                        else
3597
                            score +=   last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3598
                                     - last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3599
                                     - length[UNI_AC_ENC_INDEX(run, 65)];
3600
                    }else{
3601
                        score += -last_length[UNI_AC_ENC_INDEX(run, 65)];
3602
                        if(prev_level){
3603
                            score +=  last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3604
                                    - length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3605
                        }
3606
                    }
3607
                }
3608

    
3609
                score *= lambda;
3610

    
3611
                unquant_change= new_coeff - old_coeff;
3612
                assert((score < 100*lambda && score > -100*lambda) || lambda==0);
3613

    
3614
                score+= s->dsp.try_8x8basis(rem, weight, basis[j], unquant_change);
3615
                if(score<best_score){
3616
                    best_score= score;
3617
                    best_coeff= i;
3618
                    best_change= change;
3619
                    best_unquant_change= unquant_change;
3620
                }
3621
            }
3622
            if(level){
3623
                prev_level= level + 64;
3624
                if(prev_level&(~127))
3625
                    prev_level= 0;
3626
                prev_run= run;
3627
                run=0;
3628
            }else{
3629
                run++;
3630
            }
3631
        }
3632
#ifdef REFINE_STATS
3633
STOP_TIMER("iterative step")}
3634
#endif
3635

    
3636
        if(best_change){
3637
            int j= perm_scantable[ best_coeff ];
3638

    
3639
            block[j] += best_change;
3640

    
3641
            if(best_coeff > last_non_zero){
3642
                last_non_zero= best_coeff;
3643
                assert(block[j]);
3644
#ifdef REFINE_STATS
3645
after_last++;
3646
#endif
3647
            }else{
3648
#ifdef REFINE_STATS
3649
if(block[j]){
3650
    if(block[j] - best_change){
3651
        if(FFABS(block[j]) > FFABS(block[j] - best_change)){
3652
            raise++;
3653
        }else{
3654
            lower++;
3655
        }
3656
    }else{
3657
        from_zero++;
3658
    }
3659
}else{
3660
    to_zero++;
3661
}
3662
#endif
3663
                for(; last_non_zero>=start_i; last_non_zero--){
3664
                    if(block[perm_scantable[last_non_zero]])
3665
                        break;
3666
                }
3667
            }
3668
#ifdef REFINE_STATS
3669
count++;
3670
if(256*256*256*64 % count == 0){
3671
    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);
3672
}
3673
#endif
3674
            run=0;
3675
            rle_index=0;
3676
            for(i=start_i; i<=last_non_zero; i++){
3677
                int j= perm_scantable[i];
3678
                const int level= block[j];
3679

    
3680
                 if(level){
3681
                     run_tab[rle_index++]=run;
3682
                     run=0;
3683
                 }else{
3684
                     run++;
3685
                 }
3686
            }
3687

    
3688
            s->dsp.add_8x8basis(rem, basis[j], best_unquant_change);
3689
        }else{
3690
            break;
3691
        }
3692
    }
3693
#ifdef REFINE_STATS
3694
if(last_non_zero>0){
3695
STOP_TIMER("iterative search")
3696
}
3697
}
3698
#endif
3699

    
3700
    return last_non_zero;
3701
}
3702

    
3703
int dct_quantize_c(MpegEncContext *s,
3704
                        DCTELEM *block, int n,
3705
                        int qscale, int *overflow)
3706
{
3707
    int i, j, level, last_non_zero, q, start_i;
3708
    const int *qmat;
3709
    const uint8_t *scantable= s->intra_scantable.scantable;
3710
    int bias;
3711
    int max=0;
3712
    unsigned int threshold1, threshold2;
3713

    
3714
    s->dsp.fdct (block);
3715

    
3716
    if(s->dct_error_sum)
3717
        s->denoise_dct(s, block);
3718

    
3719
    if (s->mb_intra) {
3720
        if (!s->h263_aic) {
3721
            if (n < 4)
3722
                q = s->y_dc_scale;
3723
            else
3724
                q = s->c_dc_scale;
3725
            q = q << 3;
3726
        } else
3727
            /* For AIC we skip quant/dequant of INTRADC */
3728
            q = 1 << 3;
3729

    
3730
        /* note: block[0] is assumed to be positive */
3731
        block[0] = (block[0] + (q >> 1)) / q;
3732
        start_i = 1;
3733
        last_non_zero = 0;
3734
        qmat = s->q_intra_matrix[qscale];
3735
        bias= s->intra_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3736
    } else {
3737
        start_i = 0;
3738
        last_non_zero = -1;
3739
        qmat = s->q_inter_matrix[qscale];
3740
        bias= s->inter_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3741
    }
3742
    threshold1= (1<<QMAT_SHIFT) - bias - 1;
3743
    threshold2= (threshold1<<1);
3744
    for(i=63;i>=start_i;i--) {
3745
        j = scantable[i];
3746
        level = block[j] * qmat[j];
3747

    
3748
        if(((unsigned)(level+threshold1))>threshold2){
3749
            last_non_zero = i;
3750
            break;
3751
        }else{
3752
            block[j]=0;
3753
        }
3754
    }
3755
    for(i=start_i; i<=last_non_zero; i++) {
3756
        j = scantable[i];
3757
        level = block[j] * qmat[j];
3758

    
3759
//        if(   bias+level >= (1<<QMAT_SHIFT)
3760
//           || bias-level >= (1<<QMAT_SHIFT)){
3761
        if(((unsigned)(level+threshold1))>threshold2){
3762
            if(level>0){
3763
                level= (bias + level)>>QMAT_SHIFT;
3764
                block[j]= level;
3765
            }else{
3766
                level= (bias - level)>>QMAT_SHIFT;
3767
                block[j]= -level;
3768
            }
3769
            max |=level;
3770
        }else{
3771
            block[j]=0;
3772
        }
3773
    }
3774
    *overflow= s->max_qcoeff < max; //overflow might have happened
3775

    
3776
    /* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */
3777
    if (s->dsp.idct_permutation_type != FF_NO_IDCT_PERM)
3778
        ff_block_permute(block, s->dsp.idct_permutation, scantable, last_non_zero);
3779

    
3780
    return last_non_zero;
3781
}
3782

    
3783
AVCodec ff_h263_encoder = {
3784
    "h263",
3785
    AVMEDIA_TYPE_VIDEO,
3786
    CODEC_ID_H263,
3787
    sizeof(MpegEncContext),
3788
    MPV_encode_init,
3789
    MPV_encode_picture,
3790
    MPV_encode_end,
3791
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3792
    .long_name= NULL_IF_CONFIG_SMALL("H.263 / H.263-1996"),
3793
};
3794

    
3795
AVCodec ff_h263p_encoder = {
3796
    "h263p",
3797
    AVMEDIA_TYPE_VIDEO,
3798
    CODEC_ID_H263P,
3799
    sizeof(MpegEncContext),
3800
    MPV_encode_init,
3801
    MPV_encode_picture,
3802
    MPV_encode_end,
3803
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3804
    .long_name= NULL_IF_CONFIG_SMALL("H.263+ / H.263-1998 / H.263 version 2"),
3805
};
3806

    
3807
AVCodec ff_msmpeg4v1_encoder = {
3808
    "msmpeg4v1",
3809
    AVMEDIA_TYPE_VIDEO,
3810
    CODEC_ID_MSMPEG4V1,
3811
    sizeof(MpegEncContext),
3812
    MPV_encode_init,
3813
    MPV_encode_picture,
3814
    MPV_encode_end,
3815
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3816
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 1"),
3817
};
3818

    
3819
AVCodec ff_msmpeg4v2_encoder = {
3820
    "msmpeg4v2",
3821
    AVMEDIA_TYPE_VIDEO,
3822
    CODEC_ID_MSMPEG4V2,
3823
    sizeof(MpegEncContext),
3824
    MPV_encode_init,
3825
    MPV_encode_picture,
3826
    MPV_encode_end,
3827
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3828
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 2"),
3829
};
3830

    
3831
AVCodec ff_msmpeg4v3_encoder = {
3832
    "msmpeg4",
3833
    AVMEDIA_TYPE_VIDEO,
3834
    CODEC_ID_MSMPEG4V3,
3835
    sizeof(MpegEncContext),
3836
    MPV_encode_init,
3837
    MPV_encode_picture,
3838
    MPV_encode_end,
3839
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3840
    .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 3"),
3841
};
3842

    
3843
AVCodec ff_wmv1_encoder = {
3844
    "wmv1",
3845
    AVMEDIA_TYPE_VIDEO,
3846
    CODEC_ID_WMV1,
3847
    sizeof(MpegEncContext),
3848
    MPV_encode_init,
3849
    MPV_encode_picture,
3850
    MPV_encode_end,
3851
    .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3852
    .long_name= NULL_IF_CONFIG_SMALL("Windows Media Video 7"),
3853
};