8b28062e9e51ff8269b57e0c15562cea07c65155
[libav.git] / libavcodec / mpegvideo_enc.c
1 /*
2 * The simplest mpeg encoder (well, it was the simplest!)
3 * Copyright (c) 2000,2001 Fabrice Bellard
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5 *
6 * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
7 *
8 * This file is part of FFmpeg.
9 *
10 * FFmpeg is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * FFmpeg is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with FFmpeg; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 */
24
25 /**
26 * @file libavcodec/mpegvideo_enc.c
27 * The simplest mpeg encoder (well, it was the simplest!).
28 */
29
30 #include "libavutil/intmath.h"
31 #include "avcodec.h"
32 #include "dsputil.h"
33 #include "mpegvideo.h"
34 #include "mpegvideo_common.h"
35 #include "h263.h"
36 #include "mjpegenc.h"
37 #include "msmpeg4.h"
38 #include "faandct.h"
39 #include "aandcttab.h"
40 #include "flv.h"
41 #include "mpeg4video.h"
42 #include "internal.h"
43 #include <limits.h>
44
45 //#undef NDEBUG
46 //#include <assert.h>
47
48 static int encode_picture(MpegEncContext *s, int picture_number);
49 static int dct_quantize_refine(MpegEncContext *s, DCTELEM *block, int16_t *weight, DCTELEM *orig, int n, int qscale);
50 static int sse_mb(MpegEncContext *s);
51
52 /* enable all paranoid tests for rounding, overflows, etc... */
53 //#define PARANOID
54
55 //#define DEBUG
56
57 static uint8_t default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
58 static uint8_t default_fcode_tab[MAX_MV*2+1];
59
60 void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
61 const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra)
62 {
63 int qscale;
64 int shift=0;
65
66 for(qscale=qmin; qscale<=qmax; qscale++){
67 int i;
68 if (dsp->fdct == ff_jpeg_fdct_islow
69 #ifdef FAAN_POSTSCALE
70 || dsp->fdct == ff_faandct
71 #endif
72 ) {
73 for(i=0;i<64;i++) {
74 const int j= dsp->idct_permutation[i];
75 /* 16 <= qscale * quant_matrix[i] <= 7905 */
76 /* 19952 <= ff_aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
77 /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1 << 36) / 249205026 */
78 /* 3444240 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
79
80 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) /
81 (qscale * quant_matrix[j]));
82 }
83 } else if (dsp->fdct == fdct_ifast
84 #ifndef FAAN_POSTSCALE
85 || dsp->fdct == ff_faandct
86 #endif
87 ) {
88 for(i=0;i<64;i++) {
89 const int j= dsp->idct_permutation[i];
90 /* 16 <= qscale * quant_matrix[i] <= 7905 */
91 /* 19952 <= ff_aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
92 /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
93 /* 3444240 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
94
95 qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) /
96 (ff_aanscales[i] * qscale * quant_matrix[j]));
97 }
98 } else {
99 for(i=0;i<64;i++) {
100 const int j= dsp->idct_permutation[i];
101 /* We can safely suppose that 16 <= quant_matrix[i] <= 255
102 So 16 <= qscale * quant_matrix[i] <= 7905
103 so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
104 so 32768 >= (1<<19) / (qscale * quant_matrix[i]) >= 67
105 */
106 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / (qscale * quant_matrix[j]));
107 // qmat [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
108 qmat16[qscale][0][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[j]);
109
110 if(qmat16[qscale][0][i]==0 || qmat16[qscale][0][i]==128*256) qmat16[qscale][0][i]=128*256-1;
111 qmat16[qscale][1][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][0][i]);
112 }
113 }
114
115 for(i=intra; i<64; i++){
116 int64_t max= 8191;
117 if (dsp->fdct == fdct_ifast
118 #ifndef FAAN_POSTSCALE
119 || dsp->fdct == ff_faandct
120 #endif
121 ) {
122 max = (8191LL*ff_aanscales[i]) >> 14;
123 }
124 while(((max * qmat[qscale][i]) >> shift) > INT_MAX){
125 shift++;
126 }
127 }
128 }
129 if(shift){
130 av_log(NULL, AV_LOG_INFO, "Warning, QMAT_SHIFT is larger than %d, overflows possible\n", QMAT_SHIFT - shift);
131 }
132 }
133
134 static inline void update_qscale(MpegEncContext *s){
135 s->qscale= (s->lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
136 s->qscale= av_clip(s->qscale, s->avctx->qmin, s->avctx->qmax);
137
138 s->lambda2= (s->lambda*s->lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
139 }
140
141 void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix){
142 int i;
143
144 if(matrix){
145 put_bits(pb, 1, 1);
146 for(i=0;i<64;i++) {
147 put_bits(pb, 8, matrix[ ff_zigzag_direct[i] ]);
148 }
149 }else
150 put_bits(pb, 1, 0);
151 }
152
153 /**
154 * init s->current_picture.qscale_table from s->lambda_table
155 */
156 void ff_init_qscale_tab(MpegEncContext *s){
157 int8_t * const qscale_table= s->current_picture.qscale_table;
158 int i;
159
160 for(i=0; i<s->mb_num; i++){
161 unsigned int lam= s->lambda_table[ s->mb_index2xy[i] ];
162 int qp= (lam*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
163 qscale_table[ s->mb_index2xy[i] ]= av_clip(qp, s->avctx->qmin, s->avctx->qmax);
164 }
165 }
166
167 static void copy_picture_attributes(MpegEncContext *s, AVFrame *dst, AVFrame *src){
168 int i;
169
170 dst->pict_type = src->pict_type;
171 dst->quality = src->quality;
172 dst->coded_picture_number = src->coded_picture_number;
173 dst->display_picture_number = src->display_picture_number;
174 // dst->reference = src->reference;
175 dst->pts = src->pts;
176 dst->interlaced_frame = src->interlaced_frame;
177 dst->top_field_first = src->top_field_first;
178
179 if(s->avctx->me_threshold){
180 if(!src->motion_val[0])
181 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_val not set!\n");
182 if(!src->mb_type)
183 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.mb_type not set!\n");
184 if(!src->ref_index[0])
185 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.ref_index not set!\n");
186 if(src->motion_subsample_log2 != dst->motion_subsample_log2)
187 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_subsample_log2 doesn't match! (%d!=%d)\n",
188 src->motion_subsample_log2, dst->motion_subsample_log2);
189
190 memcpy(dst->mb_type, src->mb_type, s->mb_stride * s->mb_height * sizeof(dst->mb_type[0]));
191
192 for(i=0; i<2; i++){
193 int stride= ((16*s->mb_width )>>src->motion_subsample_log2) + 1;
194 int height= ((16*s->mb_height)>>src->motion_subsample_log2);
195
196 if(src->motion_val[i] && src->motion_val[i] != dst->motion_val[i]){
197 memcpy(dst->motion_val[i], src->motion_val[i], 2*stride*height*sizeof(int16_t));
198 }
199 if(src->ref_index[i] && src->ref_index[i] != dst->ref_index[i]){
200 memcpy(dst->ref_index[i], src->ref_index[i], s->mb_stride*4*s->mb_height*sizeof(int8_t));
201 }
202 }
203 }
204 }
205
206 static void update_duplicate_context_after_me(MpegEncContext *dst, MpegEncContext *src){
207 #define COPY(a) dst->a= src->a
208 COPY(pict_type);
209 COPY(current_picture);
210 COPY(f_code);
211 COPY(b_code);
212 COPY(qscale);
213 COPY(lambda);
214 COPY(lambda2);
215 COPY(picture_in_gop_number);
216 COPY(gop_picture_number);
217 COPY(frame_pred_frame_dct); //FIXME don't set in encode_header
218 COPY(progressive_frame); //FIXME don't set in encode_header
219 COPY(partitioned_frame); //FIXME don't set in encode_header
220 #undef COPY
221 }
222
223 /**
224 * sets the given MpegEncContext to defaults for encoding.
225 * the changed fields will not depend upon the prior state of the MpegEncContext.
226 */
227 static void MPV_encode_defaults(MpegEncContext *s){
228 int i;
229 MPV_common_defaults(s);
230
231 for(i=-16; i<16; i++){
232 default_fcode_tab[i + MAX_MV]= 1;
233 }
234 s->me.mv_penalty= default_mv_penalty;
235 s->fcode_tab= default_fcode_tab;
236 }
237
238 /* init video encoder */
239 av_cold int MPV_encode_init(AVCodecContext *avctx)
240 {
241 MpegEncContext *s = avctx->priv_data;
242 int i;
243 int chroma_h_shift, chroma_v_shift;
244
245 MPV_encode_defaults(s);
246
247 switch (avctx->codec_id) {
248 case CODEC_ID_MPEG2VIDEO:
249 if(avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P){
250 av_log(avctx, AV_LOG_ERROR, "only YUV420 and YUV422 are supported\n");
251 return -1;
252 }
253 break;
254 case CODEC_ID_LJPEG:
255 case CODEC_ID_MJPEG:
256 if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P && avctx->pix_fmt != PIX_FMT_RGB32 &&
257 ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P) || avctx->strict_std_compliance>FF_COMPLIANCE_INOFFICIAL)){
258 av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n");
259 return -1;
260 }
261 break;
262 default:
263 if(avctx->pix_fmt != PIX_FMT_YUV420P){
264 av_log(avctx, AV_LOG_ERROR, "only YUV420 is supported\n");
265 return -1;
266 }
267 }
268
269 switch (avctx->pix_fmt) {
270 case PIX_FMT_YUVJ422P:
271 case PIX_FMT_YUV422P:
272 s->chroma_format = CHROMA_422;
273 break;
274 case PIX_FMT_YUVJ420P:
275 case PIX_FMT_YUV420P:
276 default:
277 s->chroma_format = CHROMA_420;
278 break;
279 }
280
281 s->bit_rate = avctx->bit_rate;
282 s->width = avctx->width;
283 s->height = avctx->height;
284 if(avctx->gop_size > 600 && avctx->strict_std_compliance>FF_COMPLIANCE_EXPERIMENTAL){
285 av_log(avctx, AV_LOG_ERROR, "Warning keyframe interval too large! reducing it ...\n");
286 avctx->gop_size=600;
287 }
288 s->gop_size = avctx->gop_size;
289 s->avctx = avctx;
290 s->flags= avctx->flags;
291 s->flags2= avctx->flags2;
292 s->max_b_frames= avctx->max_b_frames;
293 s->codec_id= avctx->codec->id;
294 s->luma_elim_threshold = avctx->luma_elim_threshold;
295 s->chroma_elim_threshold= avctx->chroma_elim_threshold;
296 s->strict_std_compliance= avctx->strict_std_compliance;
297 s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
298 s->quarter_sample= (avctx->flags & CODEC_FLAG_QPEL)!=0;
299 s->mpeg_quant= avctx->mpeg_quant;
300 s->rtp_mode= !!avctx->rtp_payload_size;
301 s->intra_dc_precision= avctx->intra_dc_precision;
302 s->user_specified_pts = AV_NOPTS_VALUE;
303
304 if (s->gop_size <= 1) {
305 s->intra_only = 1;
306 s->gop_size = 12;
307 } else {
308 s->intra_only = 0;
309 }
310
311 s->me_method = avctx->me_method;
312
313 /* Fixed QSCALE */
314 s->fixed_qscale = !!(avctx->flags & CODEC_FLAG_QSCALE);
315
316 s->adaptive_quant= ( s->avctx->lumi_masking
317 || s->avctx->dark_masking
318 || s->avctx->temporal_cplx_masking
319 || s->avctx->spatial_cplx_masking
320 || s->avctx->p_masking
321 || s->avctx->border_masking
322 || (s->flags&CODEC_FLAG_QP_RD))
323 && !s->fixed_qscale;
324
325 s->obmc= !!(s->flags & CODEC_FLAG_OBMC);
326 s->loop_filter= !!(s->flags & CODEC_FLAG_LOOP_FILTER);
327 s->alternate_scan= !!(s->flags & CODEC_FLAG_ALT_SCAN);
328 s->intra_vlc_format= !!(s->flags2 & CODEC_FLAG2_INTRA_VLC);
329 s->q_scale_type= !!(s->flags2 & CODEC_FLAG2_NON_LINEAR_QUANT);
330
331 if(avctx->rc_max_rate && !avctx->rc_buffer_size){
332 av_log(avctx, AV_LOG_ERROR, "a vbv buffer size is needed, for encoding with a maximum bitrate\n");
333 return -1;
334 }
335
336 if(avctx->rc_min_rate && avctx->rc_max_rate != avctx->rc_min_rate){
337 av_log(avctx, AV_LOG_INFO, "Warning min_rate > 0 but min_rate != max_rate isn't recommended!\n");
338 }
339
340 if(avctx->rc_min_rate && avctx->rc_min_rate > avctx->bit_rate){
341 av_log(avctx, AV_LOG_ERROR, "bitrate below min bitrate\n");
342 return -1;
343 }
344
345 if(avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate){
346 av_log(avctx, AV_LOG_INFO, "bitrate above max bitrate\n");
347 return -1;
348 }
349
350 if(avctx->rc_max_rate && avctx->rc_max_rate == avctx->bit_rate && avctx->rc_max_rate != avctx->rc_min_rate){
351 av_log(avctx, AV_LOG_INFO, "impossible bitrate constraints, this will fail\n");
352 }
353
354 if(avctx->rc_buffer_size && avctx->bit_rate*av_q2d(avctx->time_base) > avctx->rc_buffer_size){
355 av_log(avctx, AV_LOG_ERROR, "VBV buffer too small for bitrate\n");
356 return -1;
357 }
358
359 if(avctx->bit_rate*av_q2d(avctx->time_base) > avctx->bit_rate_tolerance){
360 av_log(avctx, AV_LOG_ERROR, "bitrate tolerance too small for bitrate\n");
361 return -1;
362 }
363
364 if( s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate
365 && (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO)
366 && 90000LL * (avctx->rc_buffer_size-1) > s->avctx->rc_max_rate*0xFFFFLL){
367
368 av_log(avctx, AV_LOG_INFO, "Warning vbv_delay will be set to 0xFFFF (=VBR) as the specified vbv buffer is too large for the given bitrate!\n");
369 }
370
371 if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4
372 && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P && s->codec_id != CODEC_ID_FLV1){
373 av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n");
374 return -1;
375 }
376
377 if(s->obmc && s->avctx->mb_decision != FF_MB_DECISION_SIMPLE){
378 av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with simple mb decision\n");
379 return -1;
380 }
381
382 if(s->obmc && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P){
383 av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with H263(+)\n");
384 return -1;
385 }
386
387 if(s->quarter_sample && s->codec_id != CODEC_ID_MPEG4){
388 av_log(avctx, AV_LOG_ERROR, "qpel not supported by codec\n");
389 return -1;
390 }
391
392 if(s->data_partitioning && s->codec_id != CODEC_ID_MPEG4){
393 av_log(avctx, AV_LOG_ERROR, "data partitioning not supported by codec\n");
394 return -1;
395 }
396
397 if(s->max_b_frames && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO){
398 av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n");
399 return -1;
400 }
401
402 if ((s->codec_id == CODEC_ID_MPEG4 || s->codec_id == CODEC_ID_H263 ||
403 s->codec_id == CODEC_ID_H263P) &&
404 (avctx->sample_aspect_ratio.num > 255 || avctx->sample_aspect_ratio.den > 255)) {
405 av_log(avctx, AV_LOG_ERROR, "Invalid pixel aspect ratio %i/%i, limit is 255/255\n",
406 avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den);
407 return -1;
408 }
409
410 if((s->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN))
411 && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG2VIDEO){
412 av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n");
413 return -1;
414 }
415
416 if(s->mpeg_quant && s->codec_id != CODEC_ID_MPEG4){ //FIXME mpeg2 uses that too
417 av_log(avctx, AV_LOG_ERROR, "mpeg2 style quantization not supported by codec\n");
418 return -1;
419 }
420
421 if((s->flags & CODEC_FLAG_CBP_RD) && !avctx->trellis){
422 av_log(avctx, AV_LOG_ERROR, "CBP RD needs trellis quant\n");
423 return -1;
424 }
425
426 if((s->flags & CODEC_FLAG_QP_RD) && s->avctx->mb_decision != FF_MB_DECISION_RD){
427 av_log(avctx, AV_LOG_ERROR, "QP RD needs mbd=2\n");
428 return -1;
429 }
430
431 if(s->avctx->scenechange_threshold < 1000000000 && (s->flags & CODEC_FLAG_CLOSED_GOP)){
432 av_log(avctx, AV_LOG_ERROR, "closed gop with scene change detection are not supported yet, set threshold to 1000000000\n");
433 return -1;
434 }
435
436 if((s->flags2 & CODEC_FLAG2_INTRA_VLC) && s->codec_id != CODEC_ID_MPEG2VIDEO){
437 av_log(avctx, AV_LOG_ERROR, "intra vlc table not supported by codec\n");
438 return -1;
439 }
440
441 if(s->flags & CODEC_FLAG_LOW_DELAY){
442 if (s->codec_id != CODEC_ID_MPEG2VIDEO){
443 av_log(avctx, AV_LOG_ERROR, "low delay forcing is only available for mpeg2\n");
444 return -1;
445 }
446 if (s->max_b_frames != 0){
447 av_log(avctx, AV_LOG_ERROR, "b frames cannot be used with low delay\n");
448 return -1;
449 }
450 }
451
452 if(s->q_scale_type == 1){
453 if(s->codec_id != CODEC_ID_MPEG2VIDEO){
454 av_log(avctx, AV_LOG_ERROR, "non linear quant is only available for mpeg2\n");
455 return -1;
456 }
457 if(avctx->qmax > 12){
458 av_log(avctx, AV_LOG_ERROR, "non linear quant only supports qmax <= 12 currently\n");
459 return -1;
460 }
461 }
462
463 if(s->avctx->thread_count > 1 && s->codec_id != CODEC_ID_MPEG4
464 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO
465 && (s->codec_id != CODEC_ID_H263P || !(s->flags & CODEC_FLAG_H263P_SLICE_STRUCT))){
466 av_log(avctx, AV_LOG_ERROR, "multi threaded encoding not supported by codec\n");
467 return -1;
468 }
469
470 if(s->avctx->thread_count < 1){
471 av_log(avctx, AV_LOG_ERROR, "automatic thread number detection not supported by codec, patch welcome\n");
472 return -1;
473 }
474
475 if(s->avctx->thread_count > 1)
476 s->rtp_mode= 1;
477
478 if(!avctx->time_base.den || !avctx->time_base.num){
479 av_log(avctx, AV_LOG_ERROR, "framerate not set\n");
480 return -1;
481 }
482
483 i= (INT_MAX/2+128)>>8;
484 if(avctx->me_threshold >= i){
485 av_log(avctx, AV_LOG_ERROR, "me_threshold too large, max is %d\n", i - 1);
486 return -1;
487 }
488 if(avctx->mb_threshold >= i){
489 av_log(avctx, AV_LOG_ERROR, "mb_threshold too large, max is %d\n", i - 1);
490 return -1;
491 }
492
493 if(avctx->b_frame_strategy && (avctx->flags&CODEC_FLAG_PASS2)){
494 av_log(avctx, AV_LOG_INFO, "notice: b_frame_strategy only affects the first pass\n");
495 avctx->b_frame_strategy = 0;
496 }
497
498 i= av_gcd(avctx->time_base.den, avctx->time_base.num);
499 if(i > 1){
500 av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n");
501 avctx->time_base.den /= i;
502 avctx->time_base.num /= i;
503 // return -1;
504 }
505
506 if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO || s->codec_id==CODEC_ID_MJPEG){
507 s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x
508 s->inter_quant_bias= 0;
509 }else{
510 s->intra_quant_bias=0;
511 s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x
512 }
513
514 if(avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
515 s->intra_quant_bias= avctx->intra_quant_bias;
516 if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)
517 s->inter_quant_bias= avctx->inter_quant_bias;
518
519 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift);
520
521 if(avctx->codec_id == CODEC_ID_MPEG4 && s->avctx->time_base.den > (1<<16)-1){
522 av_log(avctx, AV_LOG_ERROR, "timebase not supported by mpeg 4 standard\n");
523 return -1;
524 }
525 s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1;
526
527 switch(avctx->codec->id) {
528 case CODEC_ID_MPEG1VIDEO:
529 s->out_format = FMT_MPEG1;
530 s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
531 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
532 break;
533 case CODEC_ID_MPEG2VIDEO:
534 s->out_format = FMT_MPEG1;
535 s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
536 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
537 s->rtp_mode= 1;
538 break;
539 case CODEC_ID_LJPEG:
540 case CODEC_ID_MJPEG:
541 s->out_format = FMT_MJPEG;
542 s->intra_only = 1; /* force intra only for jpeg */
543 if(avctx->codec->id == CODEC_ID_LJPEG && avctx->pix_fmt == PIX_FMT_BGRA){
544 s->mjpeg_vsample[0] = s->mjpeg_hsample[0] =
545 s->mjpeg_vsample[1] = s->mjpeg_hsample[1] =
546 s->mjpeg_vsample[2] = s->mjpeg_hsample[2] = 1;
547 }else{
548 s->mjpeg_vsample[0] = 2;
549 s->mjpeg_vsample[1] = 2>>chroma_v_shift;
550 s->mjpeg_vsample[2] = 2>>chroma_v_shift;
551 s->mjpeg_hsample[0] = 2;
552 s->mjpeg_hsample[1] = 2>>chroma_h_shift;
553 s->mjpeg_hsample[2] = 2>>chroma_h_shift;
554 }
555 if (!(CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER)
556 || ff_mjpeg_encode_init(s) < 0)
557 return -1;
558 avctx->delay=0;
559 s->low_delay=1;
560 break;
561 case CODEC_ID_H261:
562 if (!CONFIG_H261_ENCODER) return -1;
563 if (ff_h261_get_picture_format(s->width, s->height) < 0) {
564 av_log(avctx, AV_LOG_ERROR, "The specified picture size of %dx%d is not valid for the H.261 codec.\nValid sizes are 176x144, 352x288\n", s->width, s->height);
565 return -1;
566 }
567 s->out_format = FMT_H261;
568 avctx->delay=0;
569 s->low_delay=1;
570 break;
571 case CODEC_ID_H263:
572 if (!CONFIG_H263_ENCODER) return -1;
573 if (ff_match_2uint16(h263_format, FF_ARRAY_ELEMS(h263_format), s->width, s->height) == 7) {
574 av_log(avctx, AV_LOG_INFO, "The specified picture size of %dx%d is not valid for the H.263 codec.\nValid sizes are 128x96, 176x144, 352x288, 704x576, and 1408x1152. Try H.263+.\n", s->width, s->height);
575 return -1;
576 }
577 s->out_format = FMT_H263;
578 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
579 avctx->delay=0;
580 s->low_delay=1;
581 break;
582 case CODEC_ID_H263P:
583 s->out_format = FMT_H263;
584 s->h263_plus = 1;
585 /* Fx */
586 s->umvplus = (avctx->flags & CODEC_FLAG_H263P_UMV) ? 1:0;
587 s->h263_aic= (avctx->flags & CODEC_FLAG_AC_PRED) ? 1:0;
588 s->modified_quant= s->h263_aic;
589 s->alt_inter_vlc= (avctx->flags & CODEC_FLAG_H263P_AIV) ? 1:0;
590 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
591 s->loop_filter= (avctx->flags & CODEC_FLAG_LOOP_FILTER) ? 1:0;
592 s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
593 s->h263_slice_structured= (s->flags & CODEC_FLAG_H263P_SLICE_STRUCT) ? 1:0;
594
595 /* /Fx */
596 /* These are just to be sure */
597 avctx->delay=0;
598 s->low_delay=1;
599 break;
600 case CODEC_ID_FLV1:
601 s->out_format = FMT_H263;
602 s->h263_flv = 2; /* format = 1; 11-bit codes */
603 s->unrestricted_mv = 1;
604 s->rtp_mode=0; /* don't allow GOB */
605 avctx->delay=0;
606 s->low_delay=1;
607 break;
608 case CODEC_ID_RV10:
609 s->out_format = FMT_H263;
610 avctx->delay=0;
611 s->low_delay=1;
612 break;
613 case CODEC_ID_RV20:
614 s->out_format = FMT_H263;
615 avctx->delay=0;
616 s->low_delay=1;
617 s->modified_quant=1;
618 s->h263_aic=1;
619 s->h263_plus=1;
620 s->loop_filter=1;
621 s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
622 break;
623 case CODEC_ID_MPEG4:
624 s->out_format = FMT_H263;
625 s->h263_pred = 1;
626 s->unrestricted_mv = 1;
627 s->low_delay= s->max_b_frames ? 0 : 1;
628 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
629 break;
630 case CODEC_ID_MSMPEG4V1:
631 s->out_format = FMT_H263;
632 s->h263_msmpeg4 = 1;
633 s->h263_pred = 1;
634 s->unrestricted_mv = 1;
635 s->msmpeg4_version= 1;
636 avctx->delay=0;
637 s->low_delay=1;
638 break;
639 case CODEC_ID_MSMPEG4V2:
640 s->out_format = FMT_H263;
641 s->h263_msmpeg4 = 1;
642 s->h263_pred = 1;
643 s->unrestricted_mv = 1;
644 s->msmpeg4_version= 2;
645 avctx->delay=0;
646 s->low_delay=1;
647 break;
648 case CODEC_ID_MSMPEG4V3:
649 s->out_format = FMT_H263;
650 s->h263_msmpeg4 = 1;
651 s->h263_pred = 1;
652 s->unrestricted_mv = 1;
653 s->msmpeg4_version= 3;
654 s->flipflop_rounding=1;
655 avctx->delay=0;
656 s->low_delay=1;
657 break;
658 case CODEC_ID_WMV1:
659 s->out_format = FMT_H263;
660 s->h263_msmpeg4 = 1;
661 s->h263_pred = 1;
662 s->unrestricted_mv = 1;
663 s->msmpeg4_version= 4;
664 s->flipflop_rounding=1;
665 avctx->delay=0;
666 s->low_delay=1;
667 break;
668 case CODEC_ID_WMV2:
669 s->out_format = FMT_H263;
670 s->h263_msmpeg4 = 1;
671 s->h263_pred = 1;
672 s->unrestricted_mv = 1;
673 s->msmpeg4_version= 5;
674 s->flipflop_rounding=1;
675 avctx->delay=0;
676 s->low_delay=1;
677 break;
678 default:
679 return -1;
680 }
681
682 avctx->has_b_frames= !s->low_delay;
683
684 s->encoding = 1;
685
686 s->progressive_frame=
687 s->progressive_sequence= !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN));
688
689 /* init */
690 if (MPV_common_init(s) < 0)
691 return -1;
692
693 if(!s->dct_quantize)
694 s->dct_quantize = dct_quantize_c;
695 if(!s->denoise_dct)
696 s->denoise_dct = denoise_dct_c;
697 s->fast_dct_quantize = s->dct_quantize;
698 if(avctx->trellis)
699 s->dct_quantize = dct_quantize_trellis_c;
700
701 if((CONFIG_H263P_ENCODER || CONFIG_RV20_ENCODER) && s->modified_quant)
702 s->chroma_qscale_table= ff_h263_chroma_qscale_table;
703
704 s->quant_precision=5;
705
706 ff_set_cmp(&s->dsp, s->dsp.ildct_cmp, s->avctx->ildct_cmp);
707 ff_set_cmp(&s->dsp, s->dsp.frame_skip_cmp, s->avctx->frame_skip_cmp);
708
709 if (CONFIG_H261_ENCODER && s->out_format == FMT_H261)
710 ff_h261_encode_init(s);
711 if (CONFIG_H263_ENCODER && s->out_format == FMT_H263)
712 h263_encode_init(s);
713 if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version)
714 ff_msmpeg4_encode_init(s);
715 if ((CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
716 && s->out_format == FMT_MPEG1)
717 ff_mpeg1_encode_init(s);
718
719 /* init q matrix */
720 for(i=0;i<64;i++) {
721 int j= s->dsp.idct_permutation[i];
722 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){
723 s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
724 s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
725 }else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){
726 s->intra_matrix[j] =
727 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
728 }else
729 { /* mpeg1/2 */
730 s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
731 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
732 }
733 if(s->avctx->intra_matrix)
734 s->intra_matrix[j] = s->avctx->intra_matrix[i];
735 if(s->avctx->inter_matrix)
736 s->inter_matrix[j] = s->avctx->inter_matrix[i];
737 }
738
739 /* precompute matrix */
740 /* for mjpeg, we do include qscale in the matrix */
741 if (s->out_format != FMT_MJPEG) {
742 ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
743 s->intra_matrix, s->intra_quant_bias, avctx->qmin, 31, 1);
744 ff_convert_matrix(&s->dsp, s->q_inter_matrix, s->q_inter_matrix16,
745 s->inter_matrix, s->inter_quant_bias, avctx->qmin, 31, 0);
746 }
747
748 if(ff_rate_control_init(s) < 0)
749 return -1;
750
751 return 0;
752 }
753
754 av_cold int MPV_encode_end(AVCodecContext *avctx)
755 {
756 MpegEncContext *s = avctx->priv_data;
757
758 ff_rate_control_uninit(s);
759
760 MPV_common_end(s);
761 if ((CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER) && s->out_format == FMT_MJPEG)
762 ff_mjpeg_encode_close(s);
763
764 av_freep(&avctx->extradata);
765
766 return 0;
767 }
768
769 static int get_sae(uint8_t *src, int ref, int stride){
770 int x,y;
771 int acc=0;
772
773 for(y=0; y<16; y++){
774 for(x=0; x<16; x++){
775 acc+= FFABS(src[x+y*stride] - ref);
776 }
777 }
778
779 return acc;
780 }
781
782 static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride){
783 int x, y, w, h;
784 int acc=0;
785
786 w= s->width &~15;
787 h= s->height&~15;
788
789 for(y=0; y<h; y+=16){
790 for(x=0; x<w; x+=16){
791 int offset= x + y*stride;
792 int sad = s->dsp.sad[0](NULL, src + offset, ref + offset, stride, 16);
793 int mean= (s->dsp.pix_sum(src + offset, stride) + 128)>>8;
794 int sae = get_sae(src + offset, mean, stride);
795
796 acc+= sae + 500 < sad;
797 }
798 }
799 return acc;
800 }
801
802
803 static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
804 AVFrame *pic=NULL;
805 int64_t pts;
806 int i;
807 const int encoding_delay= s->max_b_frames;
808 int direct=1;
809
810 if(pic_arg){
811 pts= pic_arg->pts;
812 pic_arg->display_picture_number= s->input_picture_number++;
813
814 if(pts != AV_NOPTS_VALUE){
815 if(s->user_specified_pts != AV_NOPTS_VALUE){
816 int64_t time= pts;
817 int64_t last= s->user_specified_pts;
818
819 if(time <= last){
820 av_log(s->avctx, AV_LOG_ERROR, "Error, Invalid timestamp=%"PRId64", last=%"PRId64"\n", pts, s->user_specified_pts);
821 return -1;
822 }
823 }
824 s->user_specified_pts= pts;
825 }else{
826 if(s->user_specified_pts != AV_NOPTS_VALUE){
827 s->user_specified_pts=
828 pts= s->user_specified_pts + 1;
829 av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%"PRId64")\n", pts);
830 }else{
831 pts= pic_arg->display_picture_number;
832 }
833 }
834 }
835
836 if(pic_arg){
837 if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0;
838 if(pic_arg->linesize[0] != s->linesize) direct=0;
839 if(pic_arg->linesize[1] != s->uvlinesize) direct=0;
840 if(pic_arg->linesize[2] != s->uvlinesize) direct=0;
841
842 // av_log(AV_LOG_DEBUG, "%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize);
843
844 if(direct){
845 i= ff_find_unused_picture(s, 1);
846
847 pic= (AVFrame*)&s->picture[i];
848 pic->reference= 3;
849
850 for(i=0; i<4; i++){
851 pic->data[i]= pic_arg->data[i];
852 pic->linesize[i]= pic_arg->linesize[i];
853 }
854 if(ff_alloc_picture(s, (Picture*)pic, 1) < 0){
855 return -1;
856 }
857 }else{
858 i= ff_find_unused_picture(s, 0);
859
860 pic= (AVFrame*)&s->picture[i];
861 pic->reference= 3;
862
863 if(ff_alloc_picture(s, (Picture*)pic, 0) < 0){
864 return -1;
865 }
866
867 if( pic->data[0] + INPLACE_OFFSET == pic_arg->data[0]
868 && pic->data[1] + INPLACE_OFFSET == pic_arg->data[1]
869 && pic->data[2] + INPLACE_OFFSET == pic_arg->data[2]){
870 // empty
871 }else{
872 int h_chroma_shift, v_chroma_shift;
873 avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
874
875 for(i=0; i<3; i++){
876 int src_stride= pic_arg->linesize[i];
877 int dst_stride= i ? s->uvlinesize : s->linesize;
878 int h_shift= i ? h_chroma_shift : 0;
879 int v_shift= i ? v_chroma_shift : 0;
880 int w= s->width >>h_shift;
881 int h= s->height>>v_shift;
882 uint8_t *src= pic_arg->data[i];
883 uint8_t *dst= pic->data[i];
884
885 if(!s->avctx->rc_buffer_size)
886 dst +=INPLACE_OFFSET;
887
888 if(src_stride==dst_stride)
889 memcpy(dst, src, src_stride*h);
890 else{
891 while(h--){
892 memcpy(dst, src, w);
893 dst += dst_stride;
894 src += src_stride;
895 }
896 }
897 }
898 }
899 }
900 copy_picture_attributes(s, pic, pic_arg);
901 pic->pts= pts; //we set this here to avoid modifiying pic_arg
902 }
903
904 /* shift buffer entries */
905 for(i=1; i<MAX_PICTURE_COUNT /*s->encoding_delay+1*/; i++)
906 s->input_picture[i-1]= s->input_picture[i];
907
908 s->input_picture[encoding_delay]= (Picture*)pic;
909
910 return 0;
911 }
912
913 static int skip_check(MpegEncContext *s, Picture *p, Picture *ref){
914 int x, y, plane;
915 int score=0;
916 int64_t score64=0;
917
918 for(plane=0; plane<3; plane++){
919 const int stride= p->linesize[plane];
920 const int bw= plane ? 1 : 2;
921 for(y=0; y<s->mb_height*bw; y++){
922 for(x=0; x<s->mb_width*bw; x++){
923 int off= p->type == FF_BUFFER_TYPE_SHARED ? 0: 16;
924 int v= s->dsp.frame_skip_cmp[1](s, p->data[plane] + 8*(x + y*stride)+off, ref->data[plane] + 8*(x + y*stride), stride, 8);
925
926 switch(s->avctx->frame_skip_exp){
927 case 0: score= FFMAX(score, v); break;
928 case 1: score+= FFABS(v);break;
929 case 2: score+= v*v;break;
930 case 3: score64+= FFABS(v*v*(int64_t)v);break;
931 case 4: score64+= v*v*(int64_t)(v*v);break;
932 }
933 }
934 }
935 }
936
937 if(score) score64= score;
938
939 if(score64 < s->avctx->frame_skip_threshold)
940 return 1;
941 if(score64 < ((s->avctx->frame_skip_factor * (int64_t)s->lambda)>>8))
942 return 1;
943 return 0;
944 }
945
946 static int estimate_best_b_count(MpegEncContext *s){
947 AVCodec *codec= avcodec_find_encoder(s->avctx->codec_id);
948 AVCodecContext *c= avcodec_alloc_context();
949 AVFrame input[FF_MAX_B_FRAMES+2];
950 const int scale= s->avctx->brd_scale;
951 int i, j, out_size, p_lambda, b_lambda, lambda2;
952 int outbuf_size= s->width * s->height; //FIXME
953 uint8_t *outbuf= av_malloc(outbuf_size);
954 int64_t best_rd= INT64_MAX;
955 int best_b_count= -1;
956
957 assert(scale>=0 && scale <=3);
958
959 // emms_c();
960 p_lambda= s->last_lambda_for[FF_P_TYPE]; //s->next_picture_ptr->quality;
961 b_lambda= s->last_lambda_for[FF_B_TYPE]; //p_lambda *FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset;
962 if(!b_lambda) b_lambda= p_lambda; //FIXME we should do this somewhere else
963 lambda2= (b_lambda*b_lambda + (1<<FF_LAMBDA_SHIFT)/2 ) >> FF_LAMBDA_SHIFT;
964
965 c->width = s->width >> scale;
966 c->height= s->height>> scale;
967 c->flags= CODEC_FLAG_QSCALE | CODEC_FLAG_PSNR | CODEC_FLAG_INPUT_PRESERVED /*| CODEC_FLAG_EMU_EDGE*/;
968 c->flags|= s->avctx->flags & CODEC_FLAG_QPEL;
969 c->mb_decision= s->avctx->mb_decision;
970 c->me_cmp= s->avctx->me_cmp;
971 c->mb_cmp= s->avctx->mb_cmp;
972 c->me_sub_cmp= s->avctx->me_sub_cmp;
973 c->pix_fmt = PIX_FMT_YUV420P;
974 c->time_base= s->avctx->time_base;
975 c->max_b_frames= s->max_b_frames;
976
977 if (avcodec_open(c, codec) < 0)
978 return -1;
979
980 for(i=0; i<s->max_b_frames+2; i++){
981 int ysize= c->width*c->height;
982 int csize= (c->width/2)*(c->height/2);
983 Picture pre_input, *pre_input_ptr= i ? s->input_picture[i-1] : s->next_picture_ptr;
984
985 avcodec_get_frame_defaults(&input[i]);
986 input[i].data[0]= av_malloc(ysize + 2*csize);
987 input[i].data[1]= input[i].data[0] + ysize;
988 input[i].data[2]= input[i].data[1] + csize;
989 input[i].linesize[0]= c->width;
990 input[i].linesize[1]=
991 input[i].linesize[2]= c->width/2;
992
993 if(pre_input_ptr && (!i || s->input_picture[i-1])) {
994 pre_input= *pre_input_ptr;
995
996 if(pre_input.type != FF_BUFFER_TYPE_SHARED && i) {
997 pre_input.data[0]+=INPLACE_OFFSET;
998 pre_input.data[1]+=INPLACE_OFFSET;
999 pre_input.data[2]+=INPLACE_OFFSET;
1000 }
1001
1002 s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0], pre_input.data[0], pre_input.linesize[0], c->width, c->height);
1003 s->dsp.shrink[scale](input[i].data[1], input[i].linesize[1], pre_input.data[1], pre_input.linesize[1], c->width>>1, c->height>>1);
1004 s->dsp.shrink[scale](input[i].data[2], input[i].linesize[2], pre_input.data[2], pre_input.linesize[2], c->width>>1, c->height>>1);
1005 }
1006 }
1007
1008 for(j=0; j<s->max_b_frames+1; j++){
1009 int64_t rd=0;
1010
1011 if(!s->input_picture[j])
1012 break;
1013
1014 c->error[0]= c->error[1]= c->error[2]= 0;
1015
1016 input[0].pict_type= FF_I_TYPE;
1017 input[0].quality= 1 * FF_QP2LAMBDA;
1018 out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[0]);
1019 // rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT;
1020
1021 for(i=0; i<s->max_b_frames+1; i++){
1022 int is_p= i % (j+1) == j || i==s->max_b_frames;
1023
1024 input[i+1].pict_type= is_p ? FF_P_TYPE : FF_B_TYPE;
1025 input[i+1].quality= is_p ? p_lambda : b_lambda;
1026 out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[i+1]);
1027 rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1028 }
1029
1030 /* get the delayed frames */
1031 while(out_size){
1032 out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);
1033 rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1034 }
1035
1036 rd += c->error[0] + c->error[1] + c->error[2];
1037
1038 if(rd < best_rd){
1039 best_rd= rd;
1040 best_b_count= j;
1041 }
1042 }
1043
1044 av_freep(&outbuf);
1045 avcodec_close(c);
1046 av_freep(&c);
1047
1048 for(i=0; i<s->max_b_frames+2; i++){
1049 av_freep(&input[i].data[0]);
1050 }
1051
1052 return best_b_count;
1053 }
1054
1055 static int select_input_picture(MpegEncContext *s){
1056 int i;
1057
1058 for(i=1; i<MAX_PICTURE_COUNT; i++)
1059 s->reordered_input_picture[i-1]= s->reordered_input_picture[i];
1060 s->reordered_input_picture[MAX_PICTURE_COUNT-1]= NULL;
1061
1062 /* set next picture type & ordering */
1063 if(s->reordered_input_picture[0]==NULL && s->input_picture[0]){
1064 if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture_ptr==NULL || s->intra_only){
1065 s->reordered_input_picture[0]= s->input_picture[0];
1066 s->reordered_input_picture[0]->pict_type= FF_I_TYPE;
1067 s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1068 }else{
1069 int b_frames;
1070
1071 if(s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor){
1072 if(s->picture_in_gop_number < s->gop_size && skip_check(s, s->input_picture[0], s->next_picture_ptr)){
1073 //FIXME check that te gop check above is +-1 correct
1074 //av_log(NULL, AV_LOG_DEBUG, "skip %p %"PRId64"\n", s->input_picture[0]->data[0], s->input_picture[0]->pts);
1075
1076 if(s->input_picture[0]->type == FF_BUFFER_TYPE_SHARED){
1077 for(i=0; i<4; i++)
1078 s->input_picture[0]->data[i]= NULL;
1079 s->input_picture[0]->type= 0;
1080 }else{
1081 assert( s->input_picture[0]->type==FF_BUFFER_TYPE_USER
1082 || s->input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1083
1084 s->avctx->release_buffer(s->avctx, (AVFrame*)s->input_picture[0]);
1085 }
1086
1087 emms_c();
1088 ff_vbv_update(s, 0);
1089
1090 goto no_output_pic;
1091 }
1092 }
1093
1094 if(s->flags&CODEC_FLAG_PASS2){
1095 for(i=0; i<s->max_b_frames+1; i++){
1096 int pict_num= s->input_picture[0]->display_picture_number + i;
1097
1098 if(pict_num >= s->rc_context.num_entries)
1099 break;
1100 if(!s->input_picture[i]){
1101 s->rc_context.entry[pict_num-1].new_pict_type = FF_P_TYPE;
1102 break;
1103 }
1104
1105 s->input_picture[i]->pict_type=
1106 s->rc_context.entry[pict_num].new_pict_type;
1107 }
1108 }
1109
1110 if(s->avctx->b_frame_strategy==0){
1111 b_frames= s->max_b_frames;
1112 while(b_frames && !s->input_picture[b_frames]) b_frames--;
1113 }else if(s->avctx->b_frame_strategy==1){
1114 for(i=1; i<s->max_b_frames+1; i++){
1115 if(s->input_picture[i] && s->input_picture[i]->b_frame_score==0){
1116 s->input_picture[i]->b_frame_score=
1117 get_intra_count(s, s->input_picture[i ]->data[0],
1118 s->input_picture[i-1]->data[0], s->linesize) + 1;
1119 }
1120 }
1121 for(i=0; i<s->max_b_frames+1; i++){
1122 if(s->input_picture[i]==NULL || s->input_picture[i]->b_frame_score - 1 > s->mb_num/s->avctx->b_sensitivity) break;
1123 }
1124
1125 b_frames= FFMAX(0, i-1);
1126
1127 /* reset scores */
1128 for(i=0; i<b_frames+1; i++){
1129 s->input_picture[i]->b_frame_score=0;
1130 }
1131 }else if(s->avctx->b_frame_strategy==2){
1132 b_frames= estimate_best_b_count(s);
1133 }else{
1134 av_log(s->avctx, AV_LOG_ERROR, "illegal b frame strategy\n");
1135 b_frames=0;
1136 }
1137
1138 emms_c();
1139 //static int b_count=0;
1140 //b_count+= b_frames;
1141 //av_log(s->avctx, AV_LOG_DEBUG, "b_frames: %d\n", b_count);
1142
1143 for(i= b_frames - 1; i>=0; i--){
1144 int type= s->input_picture[i]->pict_type;
1145 if(type && type != FF_B_TYPE)
1146 b_frames= i;
1147 }
1148 if(s->input_picture[b_frames]->pict_type == FF_B_TYPE && b_frames == s->max_b_frames){
1149 av_log(s->avctx, AV_LOG_ERROR, "warning, too many b frames in a row\n");
1150 }
1151
1152 if(s->picture_in_gop_number + b_frames >= s->gop_size){
1153 if((s->flags2 & CODEC_FLAG2_STRICT_GOP) && s->gop_size > s->picture_in_gop_number){
1154 b_frames= s->gop_size - s->picture_in_gop_number - 1;
1155 }else{
1156 if(s->flags & CODEC_FLAG_CLOSED_GOP)
1157 b_frames=0;
1158 s->input_picture[b_frames]->pict_type= FF_I_TYPE;
1159 }
1160 }
1161
1162 if( (s->flags & CODEC_FLAG_CLOSED_GOP)
1163 && b_frames
1164 && s->input_picture[b_frames]->pict_type== FF_I_TYPE)
1165 b_frames--;
1166
1167 s->reordered_input_picture[0]= s->input_picture[b_frames];
1168 if(s->reordered_input_picture[0]->pict_type != FF_I_TYPE)
1169 s->reordered_input_picture[0]->pict_type= FF_P_TYPE;
1170 s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1171 for(i=0; i<b_frames; i++){
1172 s->reordered_input_picture[i+1]= s->input_picture[i];
1173 s->reordered_input_picture[i+1]->pict_type= FF_B_TYPE;
1174 s->reordered_input_picture[i+1]->coded_picture_number= s->coded_picture_number++;
1175 }
1176 }
1177 }
1178 no_output_pic:
1179 if(s->reordered_input_picture[0]){
1180 s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=FF_B_TYPE ? 3 : 0;
1181
1182 ff_copy_picture(&s->new_picture, s->reordered_input_picture[0]);
1183
1184 if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_SHARED || s->avctx->rc_buffer_size){
1185 // input is a shared pix, so we can't modifiy it -> alloc a new one & ensure that the shared one is reuseable
1186
1187 int i= ff_find_unused_picture(s, 0);
1188 Picture *pic= &s->picture[i];
1189
1190 pic->reference = s->reordered_input_picture[0]->reference;
1191 if(ff_alloc_picture(s, pic, 0) < 0){
1192 return -1;
1193 }
1194
1195 /* mark us unused / free shared pic */
1196 if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_INTERNAL)
1197 s->avctx->release_buffer(s->avctx, (AVFrame*)s->reordered_input_picture[0]);
1198 for(i=0; i<4; i++)
1199 s->reordered_input_picture[0]->data[i]= NULL;
1200 s->reordered_input_picture[0]->type= 0;
1201
1202 copy_picture_attributes(s, (AVFrame*)pic, (AVFrame*)s->reordered_input_picture[0]);
1203
1204 s->current_picture_ptr= pic;
1205 }else{
1206 // input is not a shared pix -> reuse buffer for current_pix
1207
1208 assert( s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
1209 || s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1210
1211 s->current_picture_ptr= s->reordered_input_picture[0];
1212 for(i=0; i<4; i++){
1213 s->new_picture.data[i]+= INPLACE_OFFSET;
1214 }
1215 }
1216 ff_copy_picture(&s->current_picture, s->current_picture_ptr);
1217
1218 s->picture_number= s->new_picture.display_picture_number;
1219 //printf("dpn:%d\n", s->picture_number);
1220 }else{
1221 memset(&s->new_picture, 0, sizeof(Picture));
1222 }
1223 return 0;
1224 }
1225
1226 int MPV_encode_picture(AVCodecContext *avctx,
1227 unsigned char *buf, int buf_size, void *data)
1228 {
1229 MpegEncContext *s = avctx->priv_data;
1230 AVFrame *pic_arg = data;
1231 int i, stuffing_count;
1232
1233 for(i=0; i<avctx->thread_count; i++){
1234 int start_y= s->thread_context[i]->start_mb_y;
1235 int end_y= s->thread_context[i]-> end_mb_y;
1236 int h= s->mb_height;
1237 uint8_t *start= buf + (size_t)(((int64_t) buf_size)*start_y/h);
1238 uint8_t *end = buf + (size_t)(((int64_t) buf_size)* end_y/h);
1239
1240 init_put_bits(&s->thread_context[i]->pb, start, end - start);
1241 }
1242
1243 s->picture_in_gop_number++;
1244
1245 if(load_input_picture(s, pic_arg) < 0)
1246 return -1;
1247
1248 if(select_input_picture(s) < 0){
1249 return -1;
1250 }
1251
1252 /* output? */
1253 if(s->new_picture.data[0]){
1254 s->pict_type= s->new_picture.pict_type;
1255 //emms_c();
1256 //printf("qs:%f %f %d\n", s->new_picture.quality, s->current_picture.quality, s->qscale);
1257 MPV_frame_start(s, avctx);
1258 vbv_retry:
1259 if (encode_picture(s, s->picture_number) < 0)
1260 return -1;
1261
1262 avctx->header_bits = s->header_bits;
1263 avctx->mv_bits = s->mv_bits;
1264 avctx->misc_bits = s->misc_bits;
1265 avctx->i_tex_bits = s->i_tex_bits;
1266 avctx->p_tex_bits = s->p_tex_bits;
1267 avctx->i_count = s->i_count;
1268 avctx->p_count = s->mb_num - s->i_count - s->skip_count; //FIXME f/b_count in avctx
1269 avctx->skip_count = s->skip_count;
1270
1271 MPV_frame_end(s);
1272
1273 if (CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG)
1274 ff_mjpeg_encode_picture_trailer(s);
1275
1276 if(avctx->rc_buffer_size){
1277 RateControlContext *rcc= &s->rc_context;
1278 int max_size= rcc->buffer_index * avctx->rc_max_available_vbv_use;
1279
1280 if(put_bits_count(&s->pb) > max_size && s->lambda < s->avctx->lmax){
1281 s->next_lambda= FFMAX(s->lambda+1, s->lambda*(s->qscale+1) / s->qscale);
1282 if(s->adaptive_quant){
1283 int i;
1284 for(i=0; i<s->mb_height*s->mb_stride; i++)
1285 s->lambda_table[i]= FFMAX(s->lambda_table[i]+1, s->lambda_table[i]*(s->qscale+1) / s->qscale);
1286 }
1287 s->mb_skipped = 0; //done in MPV_frame_start()
1288 if(s->pict_type==FF_P_TYPE){ //done in encode_picture() so we must undo it
1289 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
1290 s->no_rounding ^= 1;
1291 }
1292 if(s->pict_type!=FF_B_TYPE){
1293 s->time_base= s->last_time_base;
1294 s->last_non_b_time= s->time - s->pp_time;
1295 }
1296 // av_log(NULL, AV_LOG_ERROR, "R:%d ", s->next_lambda);
1297 for(i=0; i<avctx->thread_count; i++){
1298 PutBitContext *pb= &s->thread_context[i]->pb;
1299 init_put_bits(pb, pb->buf, pb->buf_end - pb->buf);
1300 }
1301 goto vbv_retry;
1302 }
1303
1304 assert(s->avctx->rc_max_rate);
1305 }
1306
1307 if(s->flags&CODEC_FLAG_PASS1)
1308 ff_write_pass1_stats(s);
1309
1310 for(i=0; i<4; i++){
1311 s->current_picture_ptr->error[i]= s->current_picture.error[i];
1312 avctx->error[i] += s->current_picture_ptr->error[i];
1313 }
1314
1315 if(s->flags&CODEC_FLAG_PASS1)
1316 assert(avctx->header_bits + avctx->mv_bits + avctx->misc_bits + avctx->i_tex_bits + avctx->p_tex_bits == put_bits_count(&s->pb));
1317 flush_put_bits(&s->pb);
1318 s->frame_bits = put_bits_count(&s->pb);
1319
1320 stuffing_count= ff_vbv_update(s, s->frame_bits);
1321 if(stuffing_count){
1322 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < stuffing_count + 50){
1323 av_log(s->avctx, AV_LOG_ERROR, "stuffing too large\n");
1324 return -1;
1325 }
1326
1327 switch(s->codec_id){
1328 case CODEC_ID_MPEG1VIDEO:
1329 case CODEC_ID_MPEG2VIDEO:
1330 while(stuffing_count--){
1331 put_bits(&s->pb, 8, 0);
1332 }
1333 break;
1334 case CODEC_ID_MPEG4:
1335 put_bits(&s->pb, 16, 0);
1336 put_bits(&s->pb, 16, 0x1C3);
1337 stuffing_count -= 4;
1338 while(stuffing_count--){
1339 put_bits(&s->pb, 8, 0xFF);
1340 }
1341 break;
1342 default:
1343 av_log(s->avctx, AV_LOG_ERROR, "vbv buffer overflow\n");
1344 }
1345 flush_put_bits(&s->pb);
1346 s->frame_bits = put_bits_count(&s->pb);
1347 }
1348
1349 /* update mpeg1/2 vbv_delay for CBR */
1350 if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && s->out_format == FMT_MPEG1
1351 && 90000LL * (avctx->rc_buffer_size-1) <= s->avctx->rc_max_rate*0xFFFFLL){
1352 int vbv_delay, min_delay;
1353 double inbits = s->avctx->rc_max_rate*av_q2d(s->avctx->time_base);
1354 int minbits= s->frame_bits - 8*(s->vbv_delay_ptr - s->pb.buf - 1);
1355 double bits = s->rc_context.buffer_index + minbits - inbits;
1356
1357 if(bits<0)
1358 av_log(s->avctx, AV_LOG_ERROR, "Internal error, negative bits\n");
1359
1360 assert(s->repeat_first_field==0);
1361
1362 vbv_delay= bits * 90000 / s->avctx->rc_max_rate;
1363 min_delay= (minbits * 90000LL + s->avctx->rc_max_rate - 1)/ s->avctx->rc_max_rate;
1364
1365 vbv_delay= FFMAX(vbv_delay, min_delay);
1366
1367 assert(vbv_delay < 0xFFFF);
1368
1369 s->vbv_delay_ptr[0] &= 0xF8;
1370 s->vbv_delay_ptr[0] |= vbv_delay>>13;
1371 s->vbv_delay_ptr[1] = vbv_delay>>5;
1372 s->vbv_delay_ptr[2] &= 0x07;
1373 s->vbv_delay_ptr[2] |= vbv_delay<<3;
1374 }
1375 s->total_bits += s->frame_bits;
1376 avctx->frame_bits = s->frame_bits;
1377 }else{
1378 assert((put_bits_ptr(&s->pb) == s->pb.buf));
1379 s->frame_bits=0;
1380 }
1381 assert((s->frame_bits&7)==0);
1382
1383 return s->frame_bits/8;
1384 }
1385
1386 static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold)
1387 {
1388 static const char tab[64]=
1389 {3,2,2,1,1,1,1,1,
1390 1,1,1,1,1,1,1,1,
1391 1,1,1,1,1,1,1,1,
1392 0,0,0,0,0,0,0,0,
1393 0,0,0,0,0,0,0,0,
1394 0,0,0,0,0,0,0,0,
1395 0,0,0,0,0,0,0,0,
1396 0,0,0,0,0,0,0,0};
1397 int score=0;
1398 int run=0;
1399 int i;
1400 DCTELEM *block= s->block[n];
1401 const int last_index= s->block_last_index[n];
1402 int skip_dc;
1403
1404 if(threshold<0){
1405 skip_dc=0;
1406 threshold= -threshold;
1407 }else
1408 skip_dc=1;
1409
1410 /* Are all we could set to zero already zero? */
1411 if(last_index<=skip_dc - 1) return;
1412
1413 for(i=0; i<=last_index; i++){
1414 const int j = s->intra_scantable.permutated[i];
1415 const int level = FFABS(block[j]);
1416 if(level==1){
1417 if(skip_dc && i==0) continue;
1418 score+= tab[run];
1419 run=0;
1420 }else if(level>1){
1421 return;
1422 }else{
1423 run++;
1424 }
1425 }
1426 if(score >= threshold) return;
1427 for(i=skip_dc; i<=last_index; i++){
1428 const int j = s->intra_scantable.permutated[i];
1429 block[j]=0;
1430 }
1431 if(block[0]) s->block_last_index[n]= 0;
1432 else s->block_last_index[n]= -1;
1433 }
1434
1435 static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1436 {
1437 int i;
1438 const int maxlevel= s->max_qcoeff;
1439 const int minlevel= s->min_qcoeff;
1440 int overflow=0;
1441
1442 if(s->mb_intra){
1443 i=1; //skip clipping of intra dc
1444 }else
1445 i=0;
1446
1447 for(;i<=last_index; i++){
1448 const int j= s->intra_scantable.permutated[i];
1449 int level = block[j];
1450
1451 if (level>maxlevel){
1452 level=maxlevel;
1453 overflow++;
1454 }else if(level<minlevel){
1455 level=minlevel;
1456 overflow++;
1457 }
1458
1459 block[j]= level;
1460 }
1461
1462 if(overflow && s->avctx->mb_decision == FF_MB_DECISION_SIMPLE)
1463 av_log(s->avctx, AV_LOG_INFO, "warning, clipping %d dct coefficients to %d..%d\n", overflow, minlevel, maxlevel);
1464 }
1465
1466 static void get_visual_weight(int16_t *weight, uint8_t *ptr, int stride){
1467 int x, y;
1468 //FIXME optimize
1469 for(y=0; y<8; y++){
1470 for(x=0; x<8; x++){
1471 int x2, y2;
1472 int sum=0;
1473 int sqr=0;
1474 int count=0;
1475
1476 for(y2= FFMAX(y-1, 0); y2 < FFMIN(8, y+2); y2++){
1477 for(x2= FFMAX(x-1, 0); x2 < FFMIN(8, x+2); x2++){
1478 int v= ptr[x2 + y2*stride];
1479 sum += v;
1480 sqr += v*v;
1481 count++;
1482 }
1483 }
1484 weight[x + 8*y]= (36*ff_sqrt(count*sqr - sum*sum)) / count;
1485 }
1486 }
1487 }
1488
1489 static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count)
1490 {
1491 int16_t weight[8][64];
1492 DCTELEM orig[8][64];
1493 const int mb_x= s->mb_x;
1494 const int mb_y= s->mb_y;
1495 int i;
1496 int skip_dct[8];
1497 int dct_offset = s->linesize*8; //default for progressive frames
1498 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1499 int wrap_y, wrap_c;
1500
1501 for(i=0; i<mb_block_count; i++) skip_dct[i]=s->skipdct;
1502
1503 if(s->adaptive_quant){
1504 const int last_qp= s->qscale;
1505 const int mb_xy= mb_x + mb_y*s->mb_stride;
1506
1507 s->lambda= s->lambda_table[mb_xy];
1508 update_qscale(s);
1509
1510 if(!(s->flags&CODEC_FLAG_QP_RD)){
1511 s->qscale= s->current_picture_ptr->qscale_table[mb_xy];
1512 s->dquant= s->qscale - last_qp;
1513
1514 if(s->out_format==FMT_H263){
1515 s->dquant= av_clip(s->dquant, -2, 2);
1516
1517 if(s->codec_id==CODEC_ID_MPEG4){
1518 if(!s->mb_intra){
1519 if(s->pict_type == FF_B_TYPE){
1520 if(s->dquant&1 || s->mv_dir&MV_DIRECT)
1521 s->dquant= 0;
1522 }
1523 if(s->mv_type==MV_TYPE_8X8)
1524 s->dquant=0;
1525 }
1526 }
1527 }
1528 }
1529 ff_set_qscale(s, last_qp + s->dquant);
1530 }else if(s->flags&CODEC_FLAG_QP_RD)
1531 ff_set_qscale(s, s->qscale + s->dquant);
1532
1533 wrap_y = s->linesize;
1534 wrap_c = s->uvlinesize;
1535 ptr_y = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
1536 ptr_cb = s->new_picture.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1537 ptr_cr = s->new_picture.data[2] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1538
1539 if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
1540 uint8_t *ebuf= s->edge_emu_buffer + 32;
1541 ff_emulated_edge_mc(ebuf , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width , s->height);
1542 ptr_y= ebuf;
1543 ff_emulated_edge_mc(ebuf+18*wrap_y , ptr_cb, wrap_c, 8, mb_block_height, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
1544 ptr_cb= ebuf+18*wrap_y;
1545 ff_emulated_edge_mc(ebuf+18*wrap_y+8, ptr_cr, wrap_c, 8, mb_block_height, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
1546 ptr_cr= ebuf+18*wrap_y+8;
1547 }
1548
1549 if (s->mb_intra) {
1550 if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1551 int progressive_score, interlaced_score;
1552
1553 s->interlaced_dct=0;
1554 progressive_score= s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y, 8)
1555 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y*8, NULL, wrap_y, 8) - 400;
1556
1557 if(progressive_score > 0){
1558 interlaced_score = s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y*2, 8)
1559 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y , NULL, wrap_y*2, 8);
1560 if(progressive_score > interlaced_score){
1561 s->interlaced_dct=1;
1562
1563 dct_offset= wrap_y;
1564 wrap_y<<=1;
1565 if (s->chroma_format == CHROMA_422)
1566 wrap_c<<=1;
1567 }
1568 }
1569 }
1570
1571 s->dsp.get_pixels(s->block[0], ptr_y , wrap_y);
1572 s->dsp.get_pixels(s->block[1], ptr_y + 8, wrap_y);
1573 s->dsp.get_pixels(s->block[2], ptr_y + dct_offset , wrap_y);
1574 s->dsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y);
1575
1576 if(s->flags&CODEC_FLAG_GRAY){
1577 skip_dct[4]= 1;
1578 skip_dct[5]= 1;
1579 }else{
1580 s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c);
1581 s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c);
1582 if(!s->chroma_y_shift){ /* 422 */
1583 s->dsp.get_pixels(s->block[6], ptr_cb + (dct_offset>>1), wrap_c);
1584 s->dsp.get_pixels(s->block[7], ptr_cr + (dct_offset>>1), wrap_c);
1585 }
1586 }
1587 }else{
1588 op_pixels_func (*op_pix)[4];
1589 qpel_mc_func (*op_qpix)[16];
1590 uint8_t *dest_y, *dest_cb, *dest_cr;
1591
1592 dest_y = s->dest[0];
1593 dest_cb = s->dest[1];
1594 dest_cr = s->dest[2];
1595
1596 if ((!s->no_rounding) || s->pict_type==FF_B_TYPE){
1597 op_pix = s->dsp.put_pixels_tab;
1598 op_qpix= s->dsp.put_qpel_pixels_tab;
1599 }else{
1600 op_pix = s->dsp.put_no_rnd_pixels_tab;
1601 op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab;
1602 }
1603
1604 if (s->mv_dir & MV_DIR_FORWARD) {
1605 MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix);
1606 op_pix = s->dsp.avg_pixels_tab;
1607 op_qpix= s->dsp.avg_qpel_pixels_tab;
1608 }
1609 if (s->mv_dir & MV_DIR_BACKWARD) {
1610 MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix);
1611 }
1612
1613 if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1614 int progressive_score, interlaced_score;
1615
1616 s->interlaced_dct=0;
1617 progressive_score= s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y, 8)
1618 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y*8, ptr_y + wrap_y*8, wrap_y, 8) - 400;
1619
1620 if(s->avctx->ildct_cmp == FF_CMP_VSSE) progressive_score -= 400;
1621
1622 if(progressive_score>0){
1623 interlaced_score = s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y*2, 8)
1624 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y , ptr_y + wrap_y , wrap_y*2, 8);
1625
1626 if(progressive_score > interlaced_score){
1627 s->interlaced_dct=1;
1628
1629 dct_offset= wrap_y;
1630 wrap_y<<=1;
1631 if (s->chroma_format == CHROMA_422)
1632 wrap_c<<=1;
1633 }
1634 }
1635 }
1636
1637 s->dsp.diff_pixels(s->block[0], ptr_y , dest_y , wrap_y);
1638 s->dsp.diff_pixels(s->block[1], ptr_y + 8, dest_y + 8, wrap_y);
1639 s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset , dest_y + dct_offset , wrap_y);
1640 s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y);
1641
1642 if(s->flags&CODEC_FLAG_GRAY){
1643 skip_dct[4]= 1;
1644 skip_dct[5]= 1;
1645 }else{
1646 s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
1647 s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
1648 if(!s->chroma_y_shift){ /* 422 */
1649 s->dsp.diff_pixels(s->block[6], ptr_cb + (dct_offset>>1), dest_cb + (dct_offset>>1), wrap_c);
1650 s->dsp.diff_pixels(s->block[7], ptr_cr + (dct_offset>>1), dest_cr + (dct_offset>>1), wrap_c);
1651 }
1652 }
1653 /* pre quantization */
1654 if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){
1655 //FIXME optimize
1656 if(s->dsp.sad[1](NULL, ptr_y , dest_y , wrap_y, 8) < 20*s->qscale) skip_dct[0]= 1;
1657 if(s->dsp.sad[1](NULL, ptr_y + 8, dest_y + 8, wrap_y, 8) < 20*s->qscale) skip_dct[1]= 1;
1658 if(s->dsp.sad[1](NULL, ptr_y +dct_offset , dest_y +dct_offset , wrap_y, 8) < 20*s->qscale) skip_dct[2]= 1;
1659 if(s->dsp.sad[1](NULL, ptr_y +dct_offset+ 8, dest_y +dct_offset+ 8, wrap_y, 8) < 20*s->qscale) skip_dct[3]= 1;
1660 if(s->dsp.sad[1](NULL, ptr_cb , dest_cb , wrap_c, 8) < 20*s->qscale) skip_dct[4]= 1;
1661 if(s->dsp.sad[1](NULL, ptr_cr , dest_cr , wrap_c, 8) < 20*s->qscale) skip_dct[5]= 1;
1662 if(!s->chroma_y_shift){ /* 422 */
1663 if(s->dsp.sad[1](NULL, ptr_cb +(dct_offset>>1), dest_cb +(dct_offset>>1), wrap_c, 8) < 20*s->qscale) skip_dct[6]= 1;
1664 if(s->dsp.sad[1](NULL, ptr_cr +(dct_offset>>1), dest_cr +(dct_offset>>1), wrap_c, 8) < 20*s->qscale) skip_dct[7]= 1;
1665 }
1666 }
1667 }
1668
1669 if(s->avctx->quantizer_noise_shaping){
1670 if(!skip_dct[0]) get_visual_weight(weight[0], ptr_y , wrap_y);
1671 if(!skip_dct[1]) get_visual_weight(weight[1], ptr_y + 8, wrap_y);
1672 if(!skip_dct[2]) get_visual_weight(weight[2], ptr_y + dct_offset , wrap_y);
1673 if(!skip_dct[3]) get_visual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y);
1674 if(!skip_dct[4]) get_visual_weight(weight[4], ptr_cb , wrap_c);
1675 if(!skip_dct[5]) get_visual_weight(weight[5], ptr_cr , wrap_c);
1676 if(!s->chroma_y_shift){ /* 422 */
1677 if(!skip_dct[6]) get_visual_weight(weight[6], ptr_cb + (dct_offset>>1), wrap_c);
1678 if(!skip_dct[7]) get_visual_weight(weight[7], ptr_cr + (dct_offset>>1), wrap_c);
1679 }
1680 memcpy(orig[0], s->block[0], sizeof(DCTELEM)*64*mb_block_count);
1681 }
1682
1683 /* DCT & quantize */
1684 assert(s->out_format!=FMT_MJPEG || s->qscale==8);
1685 {
1686 for(i=0;i<mb_block_count;i++) {
1687 if(!skip_dct[i]){
1688 int overflow;
1689 s->block_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow);
1690 // FIXME we could decide to change to quantizer instead of clipping
1691 // JS: I don't think that would be a good idea it could lower quality instead
1692 // of improve it. Just INTRADC clipping deserves changes in quantizer
1693 if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1694 }else
1695 s->block_last_index[i]= -1;
1696 }
1697 if(s->avctx->quantizer_noise_shaping){
1698 for(i=0;i<mb_block_count;i++) {
1699 if(!skip_dct[i]){
1700 s->block_last_index[i] = dct_quantize_refine(s, s->block[i], weight[i], orig[i], i, s->qscale);
1701 }
1702 }
1703 }
1704
1705 if(s->luma_elim_threshold && !s->mb_intra)
1706 for(i=0; i<4; i++)
1707 dct_single_coeff_elimination(s, i, s->luma_elim_threshold);
1708 if(s->chroma_elim_threshold && !s->mb_intra)
1709 for(i=4; i<mb_block_count; i++)
1710 dct_single_coeff_elimination(s, i, s->chroma_elim_threshold);
1711
1712 if(s->flags & CODEC_FLAG_CBP_RD){
1713 for(i=0;i<mb_block_count;i++) {
1714 if(s->block_last_index[i] == -1)
1715 s->coded_score[i]= INT_MAX/256;
1716 }
1717 }
1718 }
1719
1720 if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
1721 s->block_last_index[4]=
1722 s->block_last_index[5]= 0;
1723 s->block[4][0]=
1724 s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale;
1725 }
1726
1727 //non c quantize code returns incorrect block_last_index FIXME
1728 if(s->alternate_scan && s->dct_quantize != dct_quantize_c){
1729 for(i=0; i<mb_block_count; i++){
1730 int j;
1731 if(s->block_last_index[i]>0){
1732 for(j=63; j>0; j--){
1733 if(s->block[i][ s->intra_scantable.permutated[j] ]) break;
1734 }
1735 s->block_last_index[i]= j;
1736 }
1737 }
1738 }
1739
1740 /* huffman encode */
1741 switch(s->codec_id){ //FIXME funct ptr could be slightly faster
1742 case CODEC_ID_MPEG1VIDEO:
1743 case CODEC_ID_MPEG2VIDEO:
1744 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
1745 mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1746 break;
1747 case CODEC_ID_MPEG4:
1748 if (CONFIG_MPEG4_ENCODER)
1749 mpeg4_encode_mb(s, s->block, motion_x, motion_y);
1750 break;
1751 case CODEC_ID_MSMPEG4V2:
1752 case CODEC_ID_MSMPEG4V3:
1753 case CODEC_ID_WMV1:
1754 if (CONFIG_MSMPEG4_ENCODER)
1755 msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1756 break;
1757 case CODEC_ID_WMV2:
1758 if (CONFIG_WMV2_ENCODER)
1759 ff_wmv2_encode_mb(s, s->block, motion_x, motion_y);
1760 break;
1761 case CODEC_ID_H261:
1762 if (CONFIG_H261_ENCODER)
1763 ff_h261_encode_mb(s, s->block, motion_x, motion_y);
1764 break;
1765 case CODEC_ID_H263:
1766 case CODEC_ID_H263P:
1767 case CODEC_ID_FLV1:
1768 case CODEC_ID_RV10:
1769 case CODEC_ID_RV20:
1770 if (CONFIG_H263_ENCODER)
1771 h263_encode_mb(s, s->block, motion_x, motion_y);
1772 break;
1773 case CODEC_ID_MJPEG:
1774 if (CONFIG_MJPEG_ENCODER)
1775 ff_mjpeg_encode_mb(s, s->block);
1776 break;
1777 default:
1778 assert(0);
1779 }
1780 }
1781
1782 static av_always_inline void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
1783 {
1784 if (s->chroma_format == CHROMA_420) encode_mb_internal(s, motion_x, motion_y, 8, 6);
1785 else encode_mb_internal(s, motion_x, motion_y, 16, 8);
1786 }
1787
1788 static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1789 int i;
1790
1791 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1792
1793 /* mpeg1 */
1794 d->mb_skip_run= s->mb_skip_run;
1795 for(i=0; i<3; i++)
1796 d->last_dc[i]= s->last_dc[i];
1797
1798 /* statistics */
1799 d->mv_bits= s->mv_bits;
1800 d->i_tex_bits= s->i_tex_bits;
1801 d->p_tex_bits= s->p_tex_bits;
1802 d->i_count= s->i_count;
1803 d->f_count= s->f_count;
1804 d->b_count= s->b_count;
1805 d->skip_count= s->skip_count;
1806 d->misc_bits= s->misc_bits;
1807 d->last_bits= 0;
1808
1809 d->mb_skipped= 0;
1810 d->qscale= s->qscale;
1811 d->dquant= s->dquant;
1812
1813 d->esc3_level_length= s->esc3_level_length;
1814 }
1815
1816 static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1817 int i;
1818
1819 memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
1820 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1821
1822 /* mpeg1 */
1823 d->mb_skip_run= s->mb_skip_run;
1824 for(i=0; i<3; i++)
1825 d->last_dc[i]= s->last_dc[i];
1826
1827 /* statistics */
1828 d->mv_bits= s->mv_bits;
1829 d->i_tex_bits= s->i_tex_bits;
1830 d->p_tex_bits= s->p_tex_bits;
1831 d->i_count= s->i_count;
1832 d->f_count= s->f_count;
1833 d->b_count= s->b_count;
1834 d->skip_count= s->skip_count;
1835 d->misc_bits= s->misc_bits;
1836
1837 d->mb_intra= s->mb_intra;
1838 d->mb_skipped= s->mb_skipped;
1839 d->mv_type= s->mv_type;
1840 d->mv_dir= s->mv_dir;
1841 d->pb= s->pb;
1842 if(s->data_partitioning){
1843 d->pb2= s->pb2;
1844 d->tex_pb= s->tex_pb;
1845 }
1846 d->block= s->block;
1847 for(i=0; i<8; i++)
1848 d->block_last_index[i]= s->block_last_index[i];
1849 d->interlaced_dct= s->interlaced_dct;
1850 d->qscale= s->qscale;
1851
1852 d->esc3_level_length= s->esc3_level_length;
1853 }
1854
1855 static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type,
1856 PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
1857 int *dmin, int *next_block, int motion_x, int motion_y)
1858 {
1859 int score;
1860 uint8_t *dest_backup[3];
1861
1862 copy_context_before_encode(s, backup, type);
1863
1864 s->block= s->blocks[*next_block];
1865 s->pb= pb[*next_block];
1866 if(s->data_partitioning){
1867 s->pb2 = pb2 [*next_block];
1868 s->tex_pb= tex_pb[*next_block];
1869 }
1870
1871 if(*next_block){
1872 memcpy(dest_backup, s->dest, sizeof(s->dest));
1873 s->dest[0] = s->rd_scratchpad;
1874 s->dest[1] = s->rd_scratchpad + 16*s->linesize;
1875 s->dest[2] = s->rd_scratchpad + 16*s->linesize + 8;
1876 assert(s->linesize >= 32); //FIXME
1877 }
1878
1879 encode_mb(s, motion_x, motion_y);
1880
1881 score= put_bits_count(&s->pb);
1882 if(s->data_partitioning){
1883 score+= put_bits_count(&s->pb2);
1884 score+= put_bits_count(&s->tex_pb);
1885 }
1886
1887 if(s->avctx->mb_decision == FF_MB_DECISION_RD){
1888 MPV_decode_mb(s, s->block);
1889
1890 score *= s->lambda2;
1891 score += sse_mb(s) << FF_LAMBDA_SHIFT;
1892 }
1893
1894 if(*next_block){
1895 memcpy(s->dest, dest_backup, sizeof(s->dest));
1896 }
1897
1898 if(score<*dmin){
1899 *dmin= score;
1900 *next_block^=1;
1901
1902 copy_context_after_encode(best, s, type);
1903 }
1904 }
1905
1906 static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){
1907 uint32_t *sq = ff_squareTbl + 256;
1908 int acc=0;
1909 int x,y;
1910
1911 if(w==16 && h==16)
1912 return s->dsp.sse[0](NULL, src1, src2, stride, 16);
1913 else if(w==8 && h==8)
1914 return s->dsp.sse[1](NULL, src1, src2, stride, 8);
1915
1916 for(y=0; y<h; y++){
1917 for(x=0; x<w; x++){
1918 acc+= sq[src1[x + y*stride] - src2[x + y*stride]];
1919 }
1920 }
1921
1922 assert(acc>=0);
1923
1924 return acc;
1925 }
1926
1927 static int sse_mb(MpegEncContext *s){
1928 int w= 16;
1929 int h= 16;
1930
1931 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
1932 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
1933
1934 if(w==16 && h==16)
1935 if(s->avctx->mb_cmp == FF_CMP_NSSE){
1936 return s->dsp.nsse[0](s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], s->linesize, 16)
1937 +s->dsp.nsse[1](s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], s->uvlinesize, 8)
1938 +s->dsp.nsse[1](s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], s->uvlinesize, 8);
1939 }else{
1940 return s->dsp.sse[0](NULL, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], s->linesize, 16)
1941 +s->dsp.sse[1](NULL, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], s->uvlinesize, 8)
1942 +s->dsp.sse[1](NULL, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], s->uvlinesize, 8);
1943 }
1944 else
1945 return sse(s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], w, h, s->linesize)
1946 +sse(s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], w>>1, h>>1, s->uvlinesize)
1947 +sse(s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], w>>1, h>>1, s->uvlinesize);
1948 }
1949
1950 static int pre_estimate_motion_thread(AVCodecContext *c, void *arg){
1951 MpegEncContext *s= *(void**)arg;
1952
1953
1954 s->me.pre_pass=1;
1955 s->me.dia_size= s->avctx->pre_dia_size;
1956 s->first_slice_line=1;
1957 for(s->mb_y= s->end_mb_y-1; s->mb_y >= s->start_mb_y; s->mb_y--) {
1958 for(s->mb_x=s->mb_width-1; s->mb_x >=0 ;s->mb_x--) {
1959 ff_pre_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1960 }
1961 s->first_slice_line=0;
1962 }
1963
1964 s->me.pre_pass=0;
1965
1966 return 0;
1967 }
1968
1969 static int estimate_motion_thread(AVCodecContext *c, void *arg){
1970 MpegEncContext *s= *(void**)arg;
1971
1972 ff_check_alignment();
1973
1974 s->me.dia_size= s->avctx->dia_size;
1975 s->first_slice_line=1;
1976 for(s->mb_y= s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
1977 s->mb_x=0; //for block init below
1978 ff_init_block_index(s);
1979 for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {
1980 s->block_index[0]+=2;
1981 s->block_index[1]+=2;
1982 s->block_index[2]+=2;
1983 s->block_index[3]+=2;
1984
1985 /* compute motion vector & mb_type and store in context */
1986 if(s->pict_type==FF_B_TYPE)
1987 ff_estimate_b_frame_motion(s, s->mb_x, s->mb_y);
1988 else
1989 ff_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1990 }
1991 s->first_slice_line=0;
1992 }
1993 return 0;
1994 }
1995
1996 static int mb_var_thread(AVCodecContext *c, void *arg){
1997 MpegEncContext *s= *(void**)arg;
1998 int mb_x, mb_y;
1999
2000 ff_check_alignment();
2001
2002 for(mb_y=s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2003 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2004 int xx = mb_x * 16;
2005 int yy = mb_y * 16;
2006 uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
2007 int varc;
2008 int sum = s->dsp.pix_sum(pix, s->linesize);
2009
2010 varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
2011
2012 s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
2013 s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
2014 s->me.mb_var_sum_temp += varc;
2015 }
2016 }
2017 return 0;
2018 }
2019
2020 static void write_slice_end(MpegEncContext *s){
2021 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4){
2022 if(s->partitioned_frame){
2023 ff_mpeg4_merge_partitions(s);
2024 }
2025
2026 ff_mpeg4_stuffing(&s->pb);
2027 }else if(CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG){
2028 ff_mjpeg_encode_stuffing(&s->pb);
2029 }
2030
2031 align_put_bits(&s->pb);
2032 flush_put_bits(&s->pb);
2033
2034 if((s->flags&CODEC_FLAG_PASS1) && !s->partitioned_frame)
2035 s->misc_bits+= get_bits_diff(s);
2036 }
2037
2038 static int encode_thread(AVCodecContext *c, void *arg){
2039 MpegEncContext *s= *(void**)arg;
2040 int mb_x, mb_y, pdif = 0;
2041 int chr_h= 16>>s->chroma_y_shift;
2042 int i, j;
2043 MpegEncContext best_s, backup_s;
2044 uint8_t bit_buf[2][MAX_MB_BYTES];
2045 uint8_t bit_buf2[2][MAX_MB_BYTES];
2046 uint8_t bit_buf_tex[2][MAX_MB_BYTES];
2047 PutBitContext pb[2], pb2[2], tex_pb[2];
2048 //printf("%d->%d\n", s->resync_mb_y, s->end_mb_y);
2049
2050 ff_check_alignment();
2051
2052 for(i=0; i<2; i++){
2053 init_put_bits(&pb [i], bit_buf [i], MAX_MB_BYTES);
2054 init_put_bits(&pb2 [i], bit_buf2 [i], MAX_MB_BYTES);
2055 init_put_bits(&tex_pb[i], bit_buf_tex[i], MAX_MB_BYTES);
2056 }
2057
2058 s->last_bits= put_bits_count(&s->pb);
2059 s->mv_bits=0;
2060 s->misc_bits=0;
2061 s->i_tex_bits=0;
2062 s->p_tex_bits=0;
2063 s->i_count=0;
2064 s->f_count=0;
2065 s->b_count=0;
2066 s->skip_count=0;
2067
2068 for(i=0; i<3; i++){
2069 /* init last dc values */
2070 /* note: quant matrix value (8) is implied here */
2071 s->last_dc[i] = 128 << s->intra_dc_precision;
2072
2073 s->current_picture.error[i] = 0;
2074 }
2075 s->mb_skip_run = 0;
2076 memset(s->last_mv, 0, sizeof(s->last_mv));
2077
2078 s->last_mv_dir = 0;
2079
2080 switch(s->codec_id){
2081 case CODEC_ID_H263:
2082 case CODEC_ID_H263P:
2083 case CODEC_ID_FLV1:
2084 if (CONFIG_H263_ENCODER)
2085 s->gob_index = ff_h263_get_gob_height(s);
2086 break;
2087 case CODEC_ID_MPEG4:
2088 if(CONFIG_MPEG4_ENCODER && s->partitioned_frame)
2089 ff_mpeg4_init_partitions(s);
2090 break;
2091 }
2092
2093 s->resync_mb_x=0;
2094 s->resync_mb_y=0;
2095 s->first_slice_line = 1;
2096 s->ptr_lastgob = s->pb.buf;
2097 for(mb_y= s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2098 // printf("row %d at %X\n", s->mb_y, (int)s);
2099 s->mb_x=0;
2100 s->mb_y= mb_y;
2101
2102 ff_set_qscale(s, s->qscale);
2103 ff_init_block_index(s);
2104
2105 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2106 int xy= mb_y*s->mb_stride + mb_x; // removed const, H261 needs to adjust this
2107 int mb_type= s->mb_type[xy];
2108 // int d;
2109 int dmin= INT_MAX;
2110 int dir;
2111
2112 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < MAX_MB_BYTES){
2113 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2114 return -1;
2115 }
2116 if(s->data_partitioning){
2117 if( s->pb2 .buf_end - s->pb2 .buf - (put_bits_count(&s-> pb2)>>3) < MAX_MB_BYTES
2118 || s->tex_pb.buf_end - s->tex_pb.buf - (put_bits_count(&s->tex_pb )>>3) < MAX_MB_BYTES){
2119 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2120 return -1;
2121 }
2122 }
2123
2124 s->mb_x = mb_x;
2125 s->mb_y = mb_y; // moved into loop, can get changed by H.261
2126 ff_update_block_index(s);
2127
2128 if(CONFIG_H261_ENCODER && s->codec_id == CODEC_ID_H261){
2129 ff_h261_reorder_mb_index(s);
2130 xy= s->mb_y*s->mb_stride + s->mb_x;
2131 mb_type= s->mb_type[xy];
2132 }
2133
2134 /* write gob / video packet header */
2135 if(s->rtp_mode){
2136 int current_packet_size, is_gob_start;
2137
2138 current_packet_size= ((put_bits_count(&s->pb)+7)>>3) - (s->ptr_lastgob - s->pb.buf);
2139
2140 is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0;
2141
2142 if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1;
2143
2144 switch(s->codec_id){
2145 case CODEC_ID_H263:
2146 case CODEC_ID_H263P:
2147 if(!s->h263_slice_structured)
2148 if(s->mb_x || s->mb_y%s->gob_index) is_gob_start=0;
2149 break;
2150 case CODEC_ID_MPEG2VIDEO:
2151 if(s->mb_x==0 && s->mb_y!=0) is_gob_start=1;
2152 case CODEC_ID_MPEG1VIDEO:
2153 if(s->mb_skip_run) is_gob_start=0;
2154 break;
2155 }
2156
2157 if(is_gob_start){
2158 if(s->start_mb_y != mb_y || mb_x!=0){
2159 write_slice_end(s);
2160
2161 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){
2162 ff_mpeg4_init_partitions(s);
2163 }
2164 }
2165
2166 assert((put_bits_count(&s->pb)&7) == 0);
2167 current_packet_size= put_bits_ptr(&s->pb) - s->ptr_lastgob;
2168
2169 if(s->avctx->error_rate && s->resync_mb_x + s->resync_mb_y > 0){
2170 int r= put_bits_count(&s->pb)/8 + s->picture_number + 16 + s->mb_x + s->mb_y;
2171 int d= 100 / s->avctx->error_rate;
2172 if(r % d == 0){
2173 current_packet_size=0;
2174 #ifndef ALT_BITSTREAM_WRITER
2175 s->pb.buf_ptr= s->ptr_lastgob;
2176 #endif
2177 assert(put_bits_ptr(&s->pb) == s->ptr_lastgob);
2178 }
2179 }
2180
2181 if (s->avctx->rtp_callback){
2182 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width + mb_x - s->resync_mb_x;
2183 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, current_packet_size, number_mb);
2184 }
2185
2186 switch(s->codec_id){
2187 case CODEC_ID_MPEG4:
2188 if (CONFIG_MPEG4_ENCODER) {
2189 ff_mpeg4_encode_video_packet_header(s);
2190 ff_mpeg4_clean_buffers(s);
2191 }
2192 break;
2193 case CODEC_ID_MPEG1VIDEO:
2194 case CODEC_ID_MPEG2VIDEO:
2195 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) {
2196 ff_mpeg1_encode_slice_header(s);
2197 ff_mpeg1_clean_buffers(s);
2198 }
2199 break;
2200 case CODEC_ID_H263:
2201 case CODEC_ID_H263P:
2202 if (CONFIG_H263_ENCODER)
2203 h263_encode_gob_header(s, mb_y);
2204 break;
2205 }
2206
2207 if(s->flags&CODEC_FLAG_PASS1){
2208 int bits= put_bits_count(&s->pb);
2209 s->misc_bits+= bits - s->last_bits;
2210 s->last_bits= bits;
2211 }
2212
2213 s->ptr_lastgob += current_packet_size;
2214 s->first_slice_line=1;
2215 s->resync_mb_x=mb_x;
2216 s->resync_mb_y=mb_y;
2217 }
2218 }
2219
2220 if( (s->resync_mb_x == s->mb_x)
2221 && s->resync_mb_y+1 == s->mb_y){
2222 s->first_slice_line=0;
2223 }
2224
2225 s->mb_skipped=0;
2226 s->dquant=0; //only for QP_RD
2227
2228 if(mb_type & (mb_type-1) || (s->flags & CODEC_FLAG_QP_RD)){ // more than 1 MB type possible or CODEC_FLAG_QP_RD
2229 int next_block=0;
2230 int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
2231
2232 copy_context_before_encode(&backup_s, s, -1);
2233 backup_s.pb= s->pb;
2234 best_s.data_partitioning= s->data_partitioning;
2235 best_s.partitioned_frame= s->partitioned_frame;
2236 if(s->data_partitioning){
2237 backup_s.pb2= s->pb2;
2238 backup_s.tex_pb= s->tex_pb;
2239 }
2240
2241 if(mb_type&CANDIDATE_MB_TYPE_INTER){
2242 s->mv_dir = MV_DIR_FORWARD;
2243 s->mv_type = MV_TYPE_16X16;
2244 s->mb_intra= 0;
2245 s->mv[0][0][0] = s->p_mv_table[xy][0];
2246 s->mv[0][0][1] = s->p_mv_table[xy][1];
2247 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER, pb, pb2, tex_pb,
2248 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2249 }
2250 if(mb_type&CANDIDATE_MB_TYPE_INTER_I){
2251 s->mv_dir = MV_DIR_FORWARD;
2252 s->mv_type = MV_TYPE_FIELD;
2253 s->mb_intra= 0;
2254 for(i=0; i<2; i++){
2255 j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2256 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2257 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2258 }
2259 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER_I, pb, pb2, tex_pb,
2260 &dmin, &next_block, 0, 0);
2261 }
2262 if(mb_type&CANDIDATE_MB_TYPE_SKIPPED){
2263 s->mv_dir = MV_DIR_FORWARD;
2264 s->mv_type = MV_TYPE_16X16;
2265 s->mb_intra= 0;
2266 s->mv[0][0][0] = 0;
2267 s->mv[0][0][1] = 0;
2268 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_SKIPPED, pb, pb2, tex_pb,
2269 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2270 }
2271 if(mb_type&CANDIDATE_MB_TYPE_INTER4V){
2272 s->mv_dir = MV_DIR_FORWARD;
2273 s->mv_type = MV_TYPE_8X8;
2274 s->mb_intra= 0;
2275 for(i=0; i<4; i++){
2276 s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2277 s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2278 }
2279 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER4V, pb, pb2, tex_pb,
2280 &dmin, &next_block, 0, 0);
2281 }
2282 if(mb_type&CANDIDATE_MB_TYPE_FORWARD){
2283 s->mv_dir = MV_DIR_FORWARD;
2284 s->mv_type = MV_TYPE_16X16;
2285 s->mb_intra= 0;
2286 s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2287 s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2288 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD, pb, pb2, tex_pb,
2289 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2290 }
2291 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD){
2292 s->mv_dir = MV_DIR_BACKWARD;
2293 s->mv_type = MV_TYPE_16X16;
2294 s->mb_intra= 0;
2295 s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2296 s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2297 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD, pb, pb2, tex_pb,
2298 &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
2299 }
2300 if(mb_type&CANDIDATE_MB_TYPE_BIDIR){
2301 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2302 s->mv_type = MV_TYPE_16X16;
2303 s->mb_intra= 0;
2304 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2305 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2306 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2307 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2308 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb,
2309 &dmin, &next_block, 0, 0);
2310 }
2311 if(mb_type&CANDIDATE_MB_TYPE_FORWARD_I){
2312 s->mv_dir = MV_DIR_FORWARD;
2313 s->mv_type = MV_TYPE_FIELD;
2314 s->mb_intra= 0;
2315 for(i=0; i<2; i++){
2316 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2317 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2318 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2319 }
2320 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD_I, pb, pb2, tex_pb,
2321 &dmin, &next_block, 0, 0);
2322 }
2323 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD_I){
2324 s->mv_dir = MV_DIR_BACKWARD;
2325 s->mv_type = MV_TYPE_FIELD;
2326 s->mb_intra= 0;
2327 for(i=0; i<2; i++){
2328 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2329 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2330 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2331 }
2332 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD_I, pb, pb2, tex_pb,
2333 &dmin, &next_block, 0, 0);
2334 }
2335 if(mb_type&CANDIDATE_MB_TYPE_BIDIR_I){
2336 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2337 s->mv_type = MV_TYPE_FIELD;
2338 s->mb_intra= 0;
2339 for(dir=0; dir<2; dir++){
2340 for(i=0; i<2; i++){
2341 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2342 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2343 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2344 }
2345 }
2346 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR_I, pb, pb2, tex_pb,
2347 &dmin, &next_block, 0, 0);
2348 }
2349 if(mb_type&CANDIDATE_MB_TYPE_INTRA){
2350 s->mv_dir = 0;
2351 s->mv_type = MV_TYPE_16X16;
2352 s->mb_intra= 1;
2353 s->mv[0][0][0] = 0;
2354 s->mv[0][0][1] = 0;
2355 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTRA, pb, pb2, tex_pb,
2356 &dmin, &next_block, 0, 0);
2357 if(s->h263_pred || s->h263_aic){
2358 if(best_s.mb_intra)
2359 s->mbintra_table[mb_x + mb_y*s->mb_stride]=1;
2360 else
2361 ff_clean_intra_table_entries(s); //old mode?
2362 }
2363 }
2364
2365 if((s->flags & CODEC_FLAG_QP_RD) && dmin < INT_MAX){
2366 if(best_s.mv_type==MV_TYPE_16X16){ //FIXME move 4mv after QPRD
2367 const int last_qp= backup_s.qscale;
2368 int qpi, qp, dc[6];
2369 DCTELEM ac[6][16];
2370 const int mvdir= (best_s.mv_dir&MV_DIR_BACKWARD) ? 1 : 0;
2371 static const int dquant_tab[4]={-1,1,-2,2};
2372
2373 assert(backup_s.dquant == 0);
2374
2375 //FIXME intra
2376 s->mv_dir= best_s.mv_dir;
2377 s->mv_type = MV_TYPE_16X16;
2378 s->mb_intra= best_s.mb_intra;
2379 s->mv[0][0][0] = best_s.mv[0][0][0];
2380 s->mv[0][0][1] = best_s.mv[0][0][1];
2381 s->mv[1][0][0] = best_s.mv[1][0][0];
2382 s->mv[1][0][1] = best_s.mv[1][0][1];
2383
2384 qpi = s->pict_type == FF_B_TYPE ? 2 : 0;
2385 for(; qpi<4; qpi++){
2386 int dquant= dquant_tab[qpi];
2387 qp= last_qp + dquant;
2388 if(qp < s->avctx->qmin || qp > s->avctx->qmax)
2389 continue;
2390 backup_s.dquant= dquant;
2391 if(s->mb_intra && s->dc_val[0]){
2392 for(i=0; i<6; i++){
2393 dc[i]= s->dc_val[0][ s->block_index[i] ];
2394 memcpy(ac[i], s->ac_val[0][s->block_index[i]], sizeof(DCTELEM)*16);
2395 }
2396 }
2397
2398 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2399 &dmin, &next_block, s->mv[mvdir][0][0], s->mv[mvdir][0][1]);
2400 if(best_s.qscale != qp){
2401 if(s->mb_intra && s->dc_val[0]){
2402 for(i=0; i<6; i++){
2403 s->dc_val[0][ s->block_index[i] ]= dc[i];
2404 memcpy(s->ac_val[0][s->block_index[i]], ac[i], sizeof(DCTELEM)*16);
2405 }
2406 }
2407 }
2408 }
2409 }
2410 }
2411 if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT){
2412 int mx= s->b_direct_mv_table[xy][0];
2413 int my= s->b_direct_mv_table[xy][1];
2414
2415 backup_s.dquant = 0;
2416 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2417 s->mb_intra= 0;
2418 ff_mpeg4_set_direct_mv(s, mx, my);
2419 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2420 &dmin, &next_block, mx, my);
2421 }
2422 if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT0){
2423 backup_s.dquant = 0;
2424 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2425 s->mb_intra= 0;
2426 ff_mpeg4_set_direct_mv(s, 0, 0);
2427 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2428 &dmin, &next_block, 0, 0);
2429 }
2430 if(!best_s.mb_intra && s->flags2&CODEC_FLAG2_SKIP_RD){
2431 int coded=0;
2432 for(i=0; i<6; i++)
2433 coded |= s->block_last_index[i];
2434 if(coded){
2435 int mx,my;
2436 memcpy(s->mv, best_s.mv, sizeof(s->mv));
2437 if(CONFIG_MPEG4_ENCODER && best_s.mv_dir & MV_DIRECT){
2438 mx=my=0; //FIXME find the one we actually used
2439 ff_mpeg4_set_direct_mv(s, mx, my);
2440 }else if(best_s.mv_dir&MV_DIR_BACKWARD){
2441 mx= s->mv[1][0][0];
2442 my= s->mv[1][0][1];
2443 }else{
2444 mx= s->mv[0][0][0];
2445 my= s->mv[0][0][1];
2446 }
2447
2448 s->mv_dir= best_s.mv_dir;
2449 s->mv_type = best_s.mv_type;
2450 s->mb_intra= 0;
2451 /* s->mv[0][0][0] = best_s.mv[0][0][0];
2452 s->mv[0][0][1] = best_s.mv[0][0][1];
2453 s->mv[1][0][0] = best_s.mv[1][0][0];
2454 s->mv[1][0][1] = best_s.mv[1][0][1];*/
2455 backup_s.dquant= 0;
2456 s->skipdct=1;
2457 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2458 &dmin, &next_block, mx, my);
2459 s->skipdct=0;
2460 }
2461 }
2462
2463 s->current_picture.qscale_table[xy]= best_s.qscale;
2464
2465 copy_context_after_encode(s, &best_s, -1);
2466
2467 pb_bits_count= put_bits_count(&s->pb);
2468 flush_put_bits(&s->pb);
2469 ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
2470 s->pb= backup_s.pb;
2471
2472 if(s->data_partitioning){
2473 pb2_bits_count= put_bits_count(&s->pb2);
2474 flush_put_bits(&s->pb2);
2475 ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
2476 s->pb2= backup_s.pb2;
2477
2478 tex_pb_bits_count= put_bits_count(&s->tex_pb);
2479 flush_put_bits(&s->tex_pb);
2480 ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
2481 s->tex_pb= backup_s.tex_pb;
2482 }
2483 s->last_bits= put_bits_count(&s->pb);
2484
2485 if (CONFIG_H263_ENCODER &&
2486 s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
2487 ff_h263_update_motion_val(s);
2488
2489 if(next_block==0){ //FIXME 16 vs linesize16
2490 s->dsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad , s->linesize ,16);
2491 s->dsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize , s->uvlinesize, 8);
2492 s->dsp.put_pixels_tab[1][0](s->dest[2], s->rd_scratchpad + 16*s->linesize + 8, s->uvlinesize, 8);
2493 }
2494
2495 if(s->avctx->mb_decision == FF_MB_DECISION_BITS)
2496 MPV_decode_mb(s, s->block);
2497 } else {
2498 int motion_x = 0, motion_y = 0;
2499 s->mv_type=MV_TYPE_16X16;
2500 // only one MB-Type possible
2501
2502 switch(mb_type){
2503 case CANDIDATE_MB_TYPE_INTRA:
2504 s->mv_dir = 0;
2505 s->mb_intra= 1;
2506 motion_x= s->mv[0][0][0] = 0;
2507 motion_y= s->mv[0][0][1] = 0;
2508 break;
2509 case CANDIDATE_MB_TYPE_INTER:
2510 s->mv_dir = MV_DIR_FORWARD;
2511 s->mb_intra= 0;
2512 motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
2513 motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
2514 break;
2515 case CANDIDATE_MB_TYPE_INTER_I:
2516 s->mv_dir = MV_DIR_FORWARD;
2517 s->mv_type = MV_TYPE_FIELD;
2518 s->mb_intra= 0;
2519 for(i=0; i<2; i++){
2520 j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2521 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2522 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2523 }
2524 break;
2525 case CANDIDATE_MB_TYPE_INTER4V:
2526 s->mv_dir = MV_DIR_FORWARD;
2527 s->mv_type = MV_TYPE_8X8;
2528 s->mb_intra= 0;
2529 for(i=0; i<4; i++){
2530 s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2531 s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2532 }
2533 break;
2534 case CANDIDATE_MB_TYPE_DIRECT:
2535 if (CONFIG_MPEG4_ENCODER) {
2536 s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2537 s->mb_intra= 0;
2538 motion_x=s->b_direct_mv_table[xy][0];
2539 motion_y=s->b_direct_mv_table[xy][1];
2540 ff_mpeg4_set_direct_mv(s, motion_x, motion_y);
2541 }
2542 break;
2543 case CANDIDATE_MB_TYPE_DIRECT0:
2544 if (CONFIG_MPEG4_ENCODER) {
2545 s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2546 s->mb_intra= 0;
2547 ff_mpeg4_set_direct_mv(s, 0, 0);
2548 }
2549 break;
2550 case CANDIDATE_MB_TYPE_BIDIR:
2551 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2552 s->mb_intra= 0;
2553 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2554 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2555 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2556 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2557 break;
2558 case CANDIDATE_MB_TYPE_BACKWARD:
2559 s->mv_dir = MV_DIR_BACKWARD;
2560 s->mb_intra= 0;
2561 motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2562 motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2563 break;
2564 case CANDIDATE_MB_TYPE_FORWARD:
2565 s->mv_dir = MV_DIR_FORWARD;
2566 s->mb_intra= 0;
2567 motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2568 motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2569 // printf(" %d %d ", motion_x, motion_y);
2570 break;
2571 case CANDIDATE_MB_TYPE_FORWARD_I:
2572 s->mv_dir = MV_DIR_FORWARD;
2573 s->mv_type = MV_TYPE_FIELD;
2574 s->mb_intra= 0;
2575 for(i=0; i<2; i++){
2576 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2577 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2578 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2579 }
2580 break;
2581 case CANDIDATE_MB_TYPE_BACKWARD_I:
2582 s->mv_dir = MV_DIR_BACKWARD;
2583 s->mv_type = MV_TYPE_FIELD;
2584 s->mb_intra= 0;
2585 for(i=0; i<2; i++){
2586 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2587 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2588 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2589 }
2590 break;
2591 case CANDIDATE_MB_TYPE_BIDIR_I:
2592 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2593 s->mv_type = MV_TYPE_FIELD;
2594 s->mb_intra= 0;
2595 for(dir=0; dir<2; dir++){
2596 for(i=0; i<2; i++){
2597 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2598 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2599 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2600 }
2601 }
2602 break;
2603 default:
2604 av_log(s->avctx, AV_LOG_ERROR, "illegal MB type\n");
2605 }
2606
2607 encode_mb(s, motion_x, motion_y);
2608
2609 // RAL: Update last macroblock type
2610 s->last_mv_dir = s->mv_dir;
2611
2612 if (CONFIG_H263_ENCODER &&
2613 s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
2614 ff_h263_update_motion_val(s);
2615
2616 MPV_decode_mb(s, s->block);
2617 }
2618
2619 /* clean the MV table in IPS frames for direct mode in B frames */
2620 if(s->mb_intra /* && I,P,S_TYPE */){
2621 s->p_mv_table[xy][0]=0;
2622 s->p_mv_table[xy][1]=0;
2623 }
2624
2625 if(s->flags&CODEC_FLAG_PSNR){
2626 int w= 16;
2627 int h= 16;
2628
2629 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
2630 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
2631
2632 s->current_picture.error[0] += sse(
2633 s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16,
2634 s->dest[0], w, h, s->linesize);
2635 s->current_picture.error[1] += sse(
2636 s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*chr_h,
2637 s->dest[1], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
2638 s->current_picture.error[2] += sse(
2639 s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*chr_h,
2640 s->dest[2], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
2641 }
2642 if(s->loop_filter){
2643 if(CONFIG_H263_ENCODER && s->out_format == FMT_H263)
2644 ff_h263_loop_filter(s);
2645 }
2646 //printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, put_bits_count(&s->pb));
2647 }
2648 }
2649
2650 //not beautiful here but we must write it before flushing so it has to be here
2651 if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == FF_I_TYPE)
2652 msmpeg4_encode_ext_header(s);
2653
2654 write_slice_end(s);
2655
2656 /* Send the last GOB if RTP */
2657 if (s->avctx->rtp_callback) {
2658 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width - s->resync_mb_x;
2659 pdif = put_bits_ptr(&s->pb) - s->ptr_lastgob;
2660 /* Call the RTP callback to send the last GOB */
2661 emms_c();
2662 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, pdif, number_mb);
2663 }
2664
2665 return 0;
2666 }
2667
2668 #define MERGE(field) dst->field += src->field; src->field=0
2669 static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src){
2670 MERGE(me.scene_change_score);
2671 MERGE(me.mc_mb_var_sum_temp);
2672 MERGE(me.mb_var_sum_temp);
2673 }
2674
2675 static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src){
2676 int i;
2677
2678 MERGE(dct_count[0]); //note, the other dct vars are not part of the context
2679 MERGE(dct_count[1]);
2680 MERGE(mv_bits);
2681 MERGE(i_tex_bits);
2682 MERGE(p_tex_bits);
2683 MERGE(i_count);
2684 MERGE(f_count);
2685 MERGE(b_count);
2686 MERGE(skip_count);
2687 MERGE(misc_bits);
2688 MERGE(error_count);
2689 MERGE(padding_bug_score);
2690 MERGE(current_picture.error[0]);
2691 MERGE(current_picture.error[1]);
2692 MERGE(current_picture.error[2]);
2693
2694 if(dst->avctx->noise_reduction){
2695 for(i=0; i<64; i++){
2696 MERGE(dct_error_sum[0][i]);
2697 MERGE(dct_error_sum[1][i]);
2698 }
2699 }
2700
2701 assert(put_bits_count(&src->pb) % 8 ==0);
2702 assert(put_bits_count(&dst->pb) % 8 ==0);
2703 ff_copy_bits(&dst->pb, src->pb.buf, put_bits_count(&src->pb));
2704 flush_put_bits(&dst->pb);
2705 }
2706
2707 static int estimate_qp(MpegEncContext *s, int dry_run){
2708 if (s->next_lambda){
2709 s->current_picture_ptr->quality=
2710 s->current_picture.quality = s->next_lambda;
2711 if(!dry_run) s->next_lambda= 0;
2712 } else if (!s->fixed_qscale) {
2713 s->current_picture_ptr->quality=
2714 s->current_picture.quality = ff_rate_estimate_qscale(s, dry_run);
2715 if (s->current_picture.quality < 0)
2716 return -1;
2717 }
2718
2719 if(s->adaptive_quant){
2720 switch(s->codec_id){
2721 case CODEC_ID_MPEG4:
2722 if (CONFIG_MPEG4_ENCODER)
2723 ff_clean_mpeg4_qscales(s);
2724 break;
2725 case CODEC_ID_H263:
2726 case CODEC_ID_H263P:
2727 case CODEC_ID_FLV1:
2728 if (CONFIG_H263_ENCODER)
2729 ff_clean_h263_qscales(s);
2730 break;
2731 default:
2732 ff_init_qscale_tab(s);
2733 }
2734
2735 s->lambda= s->lambda_table[0];
2736 //FIXME broken
2737 }else
2738 s->lambda= s->current_picture.quality;
2739 //printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality);
2740 update_qscale(s);
2741 return 0;
2742 }
2743
2744 /* must be called before writing the header */
2745 static void set_frame_distances(MpegEncContext * s){
2746 assert(s->current_picture_ptr->pts != AV_NOPTS_VALUE);
2747 s->time= s->current_picture_ptr->pts*s->avctx->time_base.num;
2748
2749 if(s->pict_type==FF_B_TYPE){
2750 s->pb_time= s->pp_time - (s->last_non_b_time - s->time);
2751 assert(s->pb_time > 0 && s->pb_time < s->pp_time);
2752 }else{
2753 s->pp_time= s->time - s->last_non_b_time;
2754 s->last_non_b_time= s->time;
2755 assert(s->picture_number==0 || s->pp_time > 0);
2756 }
2757 }
2758
2759 static int encode_picture(MpegEncContext *s, int picture_number)
2760 {
2761 int i;
2762 int bits;
2763
2764 s->picture_number = picture_number;
2765
2766 /* Reset the average MB variance */
2767 s->me.mb_var_sum_temp =
2768 s->me.mc_mb_var_sum_temp = 0;
2769
2770 /* we need to initialize some time vars before we can encode b-frames */
2771 // RAL: Condition added for MPEG1VIDEO
2772 if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->h263_msmpeg4))
2773 set_frame_distances(s);
2774 if(CONFIG_MPEG4_ENCODER && s->codec_id == CODEC_ID_MPEG4)
2775 ff_set_mpeg4_time(s);
2776
2777 s->me.scene_change_score=0;
2778
2779 // s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME rate distortion
2780
2781 if(s->pict_type==FF_I_TYPE){
2782 if(s->msmpeg4_version >= 3) s->no_rounding=1;
2783 else s->no_rounding=0;
2784 }else if(s->pict_type!=FF_B_TYPE){
2785 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
2786 s->no_rounding ^= 1;
2787 }
2788
2789 if(s->flags & CODEC_FLAG_PASS2){
2790 if (estimate_qp(s,1) < 0)
2791 return -1;
2792 ff_get_2pass_fcode(s);
2793 }else if(!(s->flags & CODEC_FLAG_QSCALE)){
2794 if(s->pict_type==FF_B_TYPE)
2795 s->lambda= s->last_lambda_for[s->pict_type];
2796 else
2797 s->lambda= s->last_lambda_for[s->last_non_b_pict_type];
2798 update_qscale(s);
2799 }
2800
2801 s->mb_intra=0; //for the rate distortion & bit compare functions
2802 for(i=1; i<s->avctx->thread_count; i++){
2803 ff_update_duplicate_context(s->thread_context[i], s);
2804 }
2805
2806 if(ff_init_me(s)<0)
2807 return -1;
2808
2809 /* Estimate motion for every MB */
2810 if(s->pict_type != FF_I_TYPE){
2811 s->lambda = (s->lambda * s->avctx->me_penalty_compensation + 128)>>8;
2812 s->lambda2= (s->lambda2* (int64_t)s->avctx->me_penalty_compensation + 128)>>8;
2813 if(s->pict_type != FF_B_TYPE && s->avctx->me_threshold==0){
2814 if((s->avctx->pre_me && s->last_non_b_pict_type==FF_I_TYPE) || s->avctx->pre_me==2){
2815 s->avctx->execute(s->avctx, pre_estimate_motion_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2816 }
2817 }
2818
2819 s->avctx->execute(s->avctx, estimate_motion_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2820 }else /* if(s->pict_type == FF_I_TYPE) */{
2821 /* I-Frame */
2822 for(i=0; i<s->mb_stride*s->mb_height; i++)
2823 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2824
2825 if(!s->fixed_qscale){
2826 /* finding spatial complexity for I-frame rate control */
2827 s->avctx->execute(s->avctx, mb_var_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2828 }
2829 }
2830 for(i=1; i<s->avctx->thread_count; i++){
2831 merge_context_after_me(s, s->thread_context[i]);
2832 }
2833 s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum= s->me.mc_mb_var_sum_temp;
2834 s->current_picture. mb_var_sum= s->current_picture_ptr-> mb_var_sum= s->me. mb_var_sum_temp;
2835 emms_c();
2836
2837 if(s->me.scene_change_score > s->avctx->scenechange_threshold && s->pict_type == FF_P_TYPE){
2838 s->pict_type= FF_I_TYPE;
2839 for(i=0; i<s->mb_stride*s->mb_height; i++)
2840 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2841 //printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum);
2842 }
2843
2844 if(!s->umvplus){
2845 if(s->pict_type==FF_P_TYPE || s->pict_type==FF_S_TYPE) {
2846 s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER);
2847
2848 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2849 int a,b;
2850 a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select
2851 b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I);
2852 s->f_code= FFMAX3(s->f_code, a, b);
2853 }
2854
2855 ff_fix_long_p_mvs(s);
2856 ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0);
2857 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2858 int j;
2859 for(i=0; i<2; i++){
2860 for(j=0; j<2; j++)
2861 ff_fix_long_mvs(s, s->p_field_select_table[i], j,
2862 s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0);
2863 }
2864 }
2865 }
2866
2867 if(s->pict_type==FF_B_TYPE){
2868 int a, b;
2869
2870 a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD);
2871 b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2872 s->f_code = FFMAX(a, b);
2873
2874 a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD);
2875 b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2876 s->b_code = FFMAX(a, b);
2877
2878 ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1);
2879 ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1);
2880 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2881 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2882 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2883 int dir, j;
2884 for(dir=0; dir<2; dir++){
2885 for(i=0; i<2; i++){
2886 for(j=0; j<2; j++){
2887 int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I)
2888 : (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I);
2889 ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j,
2890 s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1);
2891 }
2892 }
2893 }
2894 }
2895 }
2896 }
2897
2898 if (estimate_qp(s, 0) < 0)
2899 return -1;
2900
2901 if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==FF_I_TYPE && !(s->flags & CODEC_FLAG_QSCALE))
2902 s->qscale= 3; //reduce clipping problems
2903
2904 if (s->out_format == FMT_MJPEG) {
2905 /* for mjpeg, we do include qscale in the matrix */
2906 for(i=1;i<64;i++){
2907 int j= s->dsp.idct_permutation[i];
2908
2909 s->intra_matrix[j] = av_clip_uint8((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
2910 }
2911 s->y_dc_scale_table=
2912 s->c_dc_scale_table= ff_mpeg2_dc_scale_table[s->intra_dc_precision];
2913 s->intra_matrix[0] = ff_mpeg2_dc_scale_table[s->intra_dc_precision][8];
2914 ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
2915 s->intra_matrix, s->intra_quant_bias, 8, 8, 1);
2916 s->qscale= 8;
2917 }
2918
2919 //FIXME var duplication
2920 s->current_picture_ptr->key_frame=
2921 s->current_picture.key_frame= s->pict_type == FF_I_TYPE; //FIXME pic_ptr
2922 s->current_picture_ptr->pict_type=
2923 s->current_picture.pict_type= s->pict_type;
2924
2925 if(s->current_picture.key_frame)
2926 s->picture_in_gop_number=0;
2927
2928 s->last_bits= put_bits_count(&s->pb);
2929 switch(s->out_format) {
2930 case FMT_MJPEG:
2931 if (CONFIG_MJPEG_ENCODER)
2932 ff_mjpeg_encode_picture_header(s);
2933 break;
2934 case FMT_H261:
2935 if (CONFIG_H261_ENCODER)
2936 ff_h261_encode_picture_header(s, picture_number);
2937 break;
2938 case FMT_H263:
2939 if (CONFIG_WMV2_ENCODER && s->codec_id == CODEC_ID_WMV2)
2940 ff_wmv2_encode_picture_header(s, picture_number);
2941 else if (CONFIG_MSMPEG4_ENCODER && s->h263_msmpeg4)
2942 msmpeg4_encode_picture_header(s, picture_number);
2943 else if (CONFIG_MPEG4_ENCODER && s->h263_pred)
2944 mpeg4_encode_picture_header(s, picture_number);
2945 else if (CONFIG_RV10_ENCODER && s->codec_id == CODEC_ID_RV10)
2946 rv10_encode_picture_header(s, picture_number);
2947 else if (CONFIG_RV20_ENCODER && s->codec_id == CODEC_ID_RV20)
2948 rv20_encode_picture_header(s, picture_number);
2949 else if (CONFIG_FLV_ENCODER && s->codec_id == CODEC_ID_FLV1)
2950 ff_flv_encode_picture_header(s, picture_number);
2951 else if (CONFIG_H263_ENCODER)
2952 h263_encode_picture_header(s, picture_number);
2953 break;
2954 case FMT_MPEG1:
2955 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
2956 mpeg1_encode_picture_header(s, picture_number);
2957 break;
2958 case FMT_H264:
2959 break;
2960 default:
2961 assert(0);
2962 }
2963 bits= put_bits_count(&s->pb);
2964 s->header_bits= bits - s->last_bits;
2965
2966 for(i=1; i<s->avctx->thread_count; i++){
2967 update_duplicate_context_after_me(s->thread_context[i], s);
2968 }
2969 s->avctx->execute(s->avctx, encode_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
2970 for(i=1; i<s->avctx->thread_count; i++){
2971 merge_context_after_encode(s, s->thread_context[i]);
2972 }
2973 emms_c();
2974 return 0;
2975 }
2976
2977 void denoise_dct_c(MpegEncContext *s, DCTELEM *block){
2978 const int intra= s->mb_intra;
2979 int i;
2980
2981 s->dct_count[intra]++;
2982
2983 for(i=0; i<64; i++){
2984 int level= block[i];
2985
2986 if(level){
2987 if(level>0){
2988 s->dct_error_sum[intra][i] += level;
2989 level -= s->dct_offset[intra][i];
2990 if(level<0) level=0;
2991 }else{
2992 s->dct_error_sum[intra][i] -= level;
2993 level += s->dct_offset[intra][i];
2994 if(level>0) level=0;
2995 }
2996 block[i]= level;
2997 }
2998 }
2999 }
3000
3001 int dct_quantize_trellis_c(MpegEncContext *s,
3002 DCTELEM *block, int n,
3003 int qscale, int *overflow){
3004 const int *qmat;
3005 const uint8_t *scantable= s->intra_scantable.scantable;
3006 const uint8_t *perm_scantable= s->intra_scantable.permutated;
3007 int max=0;
3008 unsigned int threshold1, threshold2;
3009 int bias=0;
3010 int run_tab[65];
3011 int level_tab[65];
3012 int score_tab[65];
3013 int survivor[65];
3014 int survivor_count;
3015 int last_run=0;
3016 int last_level=0;
3017 int last_score= 0;
3018 int last_i;
3019 int coeff[2][64];
3020 int coeff_count[64];
3021 int qmul, qadd, start_i, last_non_zero, i, dc;
3022 const int esc_length= s->ac_esc_length;
3023 uint8_t * length;
3024 uint8_t * last_length;
3025 const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6);
3026
3027 s->dsp.fdct (block);
3028
3029 if(s->dct_error_sum)
3030 s->denoise_dct(s, block);
3031 qmul= qscale*16;
3032 qadd= ((qscale-1)|1)*8;
3033
3034 if (s->mb_intra) {
3035 int q;
3036 if (!s->h263_aic) {
3037 if (n < 4)
3038 q = s->y_dc_scale;
3039 else
3040 q = s->c_dc_scale;
3041 q = q << 3;
3042 } else{
3043 /* For AIC we skip quant/dequant of INTRADC */
3044 q = 1 << 3;
3045 qadd=0;
3046 }
3047
3048 /* note: block[0] is assumed to be positive */
3049 block[0] = (block[0] + (q >> 1)) / q;
3050 start_i = 1;
3051 last_non_zero = 0;
3052 qmat = s->q_intra_matrix[qscale];
3053 if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3054 bias= 1<<(QMAT_SHIFT-1);
3055 length = s->intra_ac_vlc_length;
3056 last_length= s->intra_ac_vlc_last_length;
3057 } else {
3058 start_i = 0;
3059 last_non_zero = -1;
3060 qmat = s->q_inter_matrix[qscale];
3061 length = s->inter_ac_vlc_length;
3062 last_length= s->inter_ac_vlc_last_length;
3063 }
3064 last_i= start_i;
3065
3066 threshold1= (1<<QMAT_SHIFT) - bias - 1;
3067 threshold2= (threshold1<<1);
3068
3069 for(i=63; i>=start_i; i--) {
3070 const int j = scantable[i];
3071 int level = block[j] * qmat[j];
3072
3073 if(((unsigned)(level+threshold1))>threshold2){
3074 last_non_zero = i;
3075 break;
3076 }
3077 }
3078
3079 for(i=start_i; i<=last_non_zero; i++) {
3080 const int j = scantable[i];
3081 int level = block[j] * qmat[j];
3082
3083 // if( bias+level >= (1<<(QMAT_SHIFT - 3))
3084 // || bias-level >= (1<<(QMAT_SHIFT - 3))){
3085 if(((unsigned)(level+threshold1))>threshold2){
3086 if(level>0){
3087 level= (bias + level)>>QMAT_SHIFT;
3088 coeff[0][i]= level;
3089 coeff[1][i]= level-1;
3090 // coeff[2][k]= level-2;
3091 }else{
3092 level= (bias - level)>>QMAT_SHIFT;
3093 coeff[0][i]= -level;
3094 coeff[1][i]= -level+1;
3095 // coeff[2][k]= -level+2;
3096 }
3097 coeff_count[i]= FFMIN(level, 2);
3098 assert(coeff_count[i]);
3099 max |=level;
3100 }else{
3101 coeff[0][i]= (level>>31)|1;
3102 coeff_count[i]= 1;
3103 }
3104 }
3105
3106 *overflow= s->max_qcoeff < max; //overflow might have happened
3107
3108