Description: split mpegvideo.c
[libav.git] / libavcodec / mpegvideo_enc.c
CommitLineData
3ada94ba
BF
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 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 *
22 * 4MV & hq & b-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
23 */
24
25/**
26 * @file mpegvideo_enc.c
27 * The simplest mpeg encoder (well, it was the simplest!).
28 */
29
30#include "avcodec.h"
31#include "dsputil.h"
32#include "mpegvideo.h"
33#include "mpegvideo_common.h"
34#include "mjpegenc.h"
35#include "msmpeg4.h"
36#include "faandct.h"
37#include <limits.h>
38
39//#undef NDEBUG
40//#include <assert.h>
41
42static int encode_picture(MpegEncContext *s, int picture_number);
43static int dct_quantize_refine(MpegEncContext *s, DCTELEM *block, int16_t *weight, DCTELEM *orig, int n, int qscale);
44static int sse_mb(MpegEncContext *s);
45
46/* enable all paranoid tests for rounding, overflows, etc... */
47//#define PARANOID
48
49//#define DEBUG
50
51static const uint16_t aanscales[64] = {
52 /* precomputed values scaled up by 14 bits */
53 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520,
54 22725, 31521, 29692, 26722, 22725, 17855, 12299, 6270,
55 21407, 29692, 27969, 25172, 21407, 16819, 11585, 5906,
56 19266, 26722, 25172, 22654, 19266, 15137, 10426, 5315,
57 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520,
58 12873, 17855, 16819, 15137, 12873, 10114, 6967, 3552,
59 8867 , 12299, 11585, 10426, 8867, 6967, 4799, 2446,
60 4520 , 6270, 5906, 5315, 4520, 3552, 2446, 1247
61};
62
63static uint8_t default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
64static uint8_t default_fcode_tab[MAX_MV*2+1];
65
66enum PixelFormat ff_yuv420p_list[2]= {PIX_FMT_YUV420P, -1};
67
68static void convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
69 const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra)
70{
71 int qscale;
72 int shift=0;
73
74 for(qscale=qmin; qscale<=qmax; qscale++){
75 int i;
76 if (dsp->fdct == ff_jpeg_fdct_islow
77#ifdef FAAN_POSTSCALE
78 || dsp->fdct == ff_faandct
79#endif
80 ) {
81 for(i=0;i<64;i++) {
82 const int j= dsp->idct_permutation[i];
83 /* 16 <= qscale * quant_matrix[i] <= 7905 */
84 /* 19952 <= aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
85 /* (1<<36)/19952 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
86 /* 3444240 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= 275 */
87
88 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) /
89 (qscale * quant_matrix[j]));
90 }
91 } else if (dsp->fdct == fdct_ifast
92#ifndef FAAN_POSTSCALE
93 || dsp->fdct == ff_faandct
94#endif
95 ) {
96 for(i=0;i<64;i++) {
97 const int j= dsp->idct_permutation[i];
98 /* 16 <= qscale * quant_matrix[i] <= 7905 */
99 /* 19952 <= aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
100 /* (1<<36)/19952 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
101 /* 3444240 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= 275 */
102
103 qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) /
104 (aanscales[i] * qscale * quant_matrix[j]));
105 }
106 } else {
107 for(i=0;i<64;i++) {
108 const int j= dsp->idct_permutation[i];
109 /* We can safely suppose that 16 <= quant_matrix[i] <= 255
110 So 16 <= qscale * quant_matrix[i] <= 7905
111 so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
112 so 32768 >= (1<<19) / (qscale * quant_matrix[i]) >= 67
113 */
114 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / (qscale * quant_matrix[j]));
115// qmat [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
116 qmat16[qscale][0][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[j]);
117
118 if(qmat16[qscale][0][i]==0 || qmat16[qscale][0][i]==128*256) qmat16[qscale][0][i]=128*256-1;
119 qmat16[qscale][1][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][0][i]);
120 }
121 }
122
123 for(i=intra; i<64; i++){
124 int64_t max= 8191;
125 if (dsp->fdct == fdct_ifast
126#ifndef FAAN_POSTSCALE
127 || dsp->fdct == ff_faandct
128#endif
129 ) {
130 max= (8191LL*aanscales[i]) >> 14;
131 }
132 while(((max * qmat[qscale][i]) >> shift) > INT_MAX){
133 shift++;
134 }
135 }
136 }
137 if(shift){
138 av_log(NULL, AV_LOG_INFO, "Warning, QMAT_SHIFT is larger than %d, overflows possible\n", QMAT_SHIFT - shift);
139 }
140}
141
142static inline void update_qscale(MpegEncContext *s){
143 s->qscale= (s->lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
144 s->qscale= av_clip(s->qscale, s->avctx->qmin, s->avctx->qmax);
145
146 s->lambda2= (s->lambda*s->lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
147}
148
149void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix){
150 int i;
151
152 if(matrix){
153 put_bits(pb, 1, 1);
154 for(i=0;i<64;i++) {
155 put_bits(pb, 8, matrix[ ff_zigzag_direct[i] ]);
156 }
157 }else
158 put_bits(pb, 1, 0);
159}
160
161static void copy_picture_attributes(MpegEncContext *s, AVFrame *dst, AVFrame *src){
162 int i;
163
164 dst->pict_type = src->pict_type;
165 dst->quality = src->quality;
166 dst->coded_picture_number = src->coded_picture_number;
167 dst->display_picture_number = src->display_picture_number;
168// dst->reference = src->reference;
169 dst->pts = src->pts;
170 dst->interlaced_frame = src->interlaced_frame;
171 dst->top_field_first = src->top_field_first;
172
173 if(s->avctx->me_threshold){
174 if(!src->motion_val[0])
175 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_val not set!\n");
176 if(!src->mb_type)
177 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.mb_type not set!\n");
178 if(!src->ref_index[0])
179 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.ref_index not set!\n");
180 if(src->motion_subsample_log2 != dst->motion_subsample_log2)
181 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_subsample_log2 doesn't match! (%d!=%d)\n",
182 src->motion_subsample_log2, dst->motion_subsample_log2);
183
184 memcpy(dst->mb_type, src->mb_type, s->mb_stride * s->mb_height * sizeof(dst->mb_type[0]));
185
186 for(i=0; i<2; i++){
187 int stride= ((16*s->mb_width )>>src->motion_subsample_log2) + 1;
188 int height= ((16*s->mb_height)>>src->motion_subsample_log2);
189
190 if(src->motion_val[i] && src->motion_val[i] != dst->motion_val[i]){
191 memcpy(dst->motion_val[i], src->motion_val[i], 2*stride*height*sizeof(int16_t));
192 }
193 if(src->ref_index[i] && src->ref_index[i] != dst->ref_index[i]){
194 memcpy(dst->ref_index[i], src->ref_index[i], s->b8_stride*2*s->mb_height*sizeof(int8_t));
195 }
196 }
197 }
198}
199
200static void update_duplicate_context_after_me(MpegEncContext *dst, MpegEncContext *src){
201#define COPY(a) dst->a= src->a
202 COPY(pict_type);
203 COPY(current_picture);
204 COPY(f_code);
205 COPY(b_code);
206 COPY(qscale);
207 COPY(lambda);
208 COPY(lambda2);
209 COPY(picture_in_gop_number);
210 COPY(gop_picture_number);
211 COPY(frame_pred_frame_dct); //FIXME don't set in encode_header
212 COPY(progressive_frame); //FIXME don't set in encode_header
213 COPY(partitioned_frame); //FIXME don't set in encode_header
214#undef COPY
215}
216
217/**
218 * sets the given MpegEncContext to defaults for encoding.
219 * the changed fields will not depend upon the prior state of the MpegEncContext.
220 */
221static void MPV_encode_defaults(MpegEncContext *s){
222 int i;
223 MPV_common_defaults(s);
224
225 for(i=-16; i<16; i++){
226 default_fcode_tab[i + MAX_MV]= 1;
227 }
228 s->me.mv_penalty= default_mv_penalty;
229 s->fcode_tab= default_fcode_tab;
230}
231
232/* init video encoder */
233int MPV_encode_init(AVCodecContext *avctx)
234{
235 MpegEncContext *s = avctx->priv_data;
236 int i;
237 int chroma_h_shift, chroma_v_shift;
238
239 MPV_encode_defaults(s);
240
241 switch (avctx->codec_id) {
242 case CODEC_ID_MPEG2VIDEO:
243 if(avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P){
244 av_log(avctx, AV_LOG_ERROR, "only YUV420 and YUV422 are supported\n");
245 return -1;
246 }
247 break;
248 case CODEC_ID_LJPEG:
249 case CODEC_ID_MJPEG:
250 if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P &&
251 ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P) || avctx->strict_std_compliance>FF_COMPLIANCE_INOFFICIAL)){
252 av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n");
253 return -1;
254 }
255 break;
256 default:
257 if(avctx->pix_fmt != PIX_FMT_YUV420P){
258 av_log(avctx, AV_LOG_ERROR, "only YUV420 is supported\n");
259 return -1;
260 }
261 }
262
263 switch (avctx->pix_fmt) {
264 case PIX_FMT_YUVJ422P:
265 case PIX_FMT_YUV422P:
266 s->chroma_format = CHROMA_422;
267 break;
268 case PIX_FMT_YUVJ420P:
269 case PIX_FMT_YUV420P:
270 default:
271 s->chroma_format = CHROMA_420;
272 break;
273 }
274
275 s->bit_rate = avctx->bit_rate;
276 s->width = avctx->width;
277 s->height = avctx->height;
278 if(avctx->gop_size > 600 && avctx->strict_std_compliance>FF_COMPLIANCE_EXPERIMENTAL){
279 av_log(avctx, AV_LOG_ERROR, "Warning keyframe interval too large! reducing it ...\n");
280 avctx->gop_size=600;
281 }
282 s->gop_size = avctx->gop_size;
283 s->avctx = avctx;
284 s->flags= avctx->flags;
285 s->flags2= avctx->flags2;
286 s->max_b_frames= avctx->max_b_frames;
287 s->codec_id= avctx->codec->id;
288 s->luma_elim_threshold = avctx->luma_elim_threshold;
289 s->chroma_elim_threshold= avctx->chroma_elim_threshold;
290 s->strict_std_compliance= avctx->strict_std_compliance;
291 s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
292 s->quarter_sample= (avctx->flags & CODEC_FLAG_QPEL)!=0;
293 s->mpeg_quant= avctx->mpeg_quant;
294 s->rtp_mode= !!avctx->rtp_payload_size;
295 s->intra_dc_precision= avctx->intra_dc_precision;
296 s->user_specified_pts = AV_NOPTS_VALUE;
297
298 if (s->gop_size <= 1) {
299 s->intra_only = 1;
300 s->gop_size = 12;
301 } else {
302 s->intra_only = 0;
303 }
304
305 s->me_method = avctx->me_method;
306
307 /* Fixed QSCALE */
308 s->fixed_qscale = !!(avctx->flags & CODEC_FLAG_QSCALE);
309
310 s->adaptive_quant= ( s->avctx->lumi_masking
311 || s->avctx->dark_masking
312 || s->avctx->temporal_cplx_masking
313 || s->avctx->spatial_cplx_masking
314 || s->avctx->p_masking
315 || s->avctx->border_masking
316 || (s->flags&CODEC_FLAG_QP_RD))
317 && !s->fixed_qscale;
318
319 s->obmc= !!(s->flags & CODEC_FLAG_OBMC);
320 s->loop_filter= !!(s->flags & CODEC_FLAG_LOOP_FILTER);
321 s->alternate_scan= !!(s->flags & CODEC_FLAG_ALT_SCAN);
322 s->intra_vlc_format= !!(s->flags2 & CODEC_FLAG2_INTRA_VLC);
323 s->q_scale_type= !!(s->flags2 & CODEC_FLAG2_NON_LINEAR_QUANT);
324
325 if(avctx->rc_max_rate && !avctx->rc_buffer_size){
326 av_log(avctx, AV_LOG_ERROR, "a vbv buffer size is needed, for encoding with a maximum bitrate\n");
327 return -1;
328 }
329
330 if(avctx->rc_min_rate && avctx->rc_max_rate != avctx->rc_min_rate){
331 av_log(avctx, AV_LOG_INFO, "Warning min_rate > 0 but min_rate != max_rate isn't recommended!\n");
332 }
333
334 if(avctx->rc_min_rate && avctx->rc_min_rate > avctx->bit_rate){
335 av_log(avctx, AV_LOG_ERROR, "bitrate below min bitrate\n");
336 return -1;
337 }
338
339 if(avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate){
340 av_log(avctx, AV_LOG_INFO, "bitrate above max bitrate\n");
341 return -1;
342 }
343
344 if(avctx->rc_buffer_size && avctx->bit_rate*av_q2d(avctx->time_base) > avctx->rc_buffer_size){
345 av_log(avctx, AV_LOG_ERROR, "VBV buffer too small for bitrate\n");
346 return -1;
347 }
348
349 if(avctx->bit_rate*av_q2d(avctx->time_base) > avctx->bit_rate_tolerance){
350 av_log(avctx, AV_LOG_ERROR, "bitrate tolerance too small for bitrate\n");
351 return -1;
352 }
353
354 if( s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate
355 && (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO)
356 && 90000LL * (avctx->rc_buffer_size-1) > s->avctx->rc_max_rate*0xFFFFLL){
357
358 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");
359 }
360
361 if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4
362 && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P && s->codec_id != CODEC_ID_FLV1){
363 av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n");
364 return -1;
365 }
366
367 if(s->obmc && s->avctx->mb_decision != FF_MB_DECISION_SIMPLE){
368 av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with simple mb decision\n");
369 return -1;
370 }
371
372 if(s->obmc && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P){
373 av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with H263(+)\n");
374 return -1;
375 }
376
377 if(s->quarter_sample && s->codec_id != CODEC_ID_MPEG4){
378 av_log(avctx, AV_LOG_ERROR, "qpel not supported by codec\n");
379 return -1;
380 }
381
382 if(s->data_partitioning && s->codec_id != CODEC_ID_MPEG4){
383 av_log(avctx, AV_LOG_ERROR, "data partitioning not supported by codec\n");
384 return -1;
385 }
386
387 if(s->max_b_frames && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO){
388 av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n");
389 return -1;
390 }
391
392 if((s->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN))
393 && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG2VIDEO){
394 av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n");
395 return -1;
396 }
397
398 if(s->mpeg_quant && s->codec_id != CODEC_ID_MPEG4){ //FIXME mpeg2 uses that too
399 av_log(avctx, AV_LOG_ERROR, "mpeg2 style quantization not supported by codec\n");
400 return -1;
401 }
402
403 if((s->flags & CODEC_FLAG_CBP_RD) && !(s->flags & CODEC_FLAG_TRELLIS_QUANT)){
404 av_log(avctx, AV_LOG_ERROR, "CBP RD needs trellis quant\n");
405 return -1;
406 }
407
408 if((s->flags & CODEC_FLAG_QP_RD) && s->avctx->mb_decision != FF_MB_DECISION_RD){
409 av_log(avctx, AV_LOG_ERROR, "QP RD needs mbd=2\n");
410 return -1;
411 }
412
413 if(s->avctx->scenechange_threshold < 1000000000 && (s->flags & CODEC_FLAG_CLOSED_GOP)){
414 av_log(avctx, AV_LOG_ERROR, "closed gop with scene change detection arent supported yet, set threshold to 1000000000\n");
415 return -1;
416 }
417
418 if((s->flags2 & CODEC_FLAG2_INTRA_VLC) && s->codec_id != CODEC_ID_MPEG2VIDEO){
419 av_log(avctx, AV_LOG_ERROR, "intra vlc table not supported by codec\n");
420 return -1;
421 }
422
423 if(s->flags & CODEC_FLAG_LOW_DELAY){
424 if (s->codec_id != CODEC_ID_MPEG2VIDEO && s->codec_id != CODEC_ID_MPEG1VIDEO){
425 av_log(avctx, AV_LOG_ERROR, "low delay forcing is only available for mpeg1/2\n");
426 return -1;
427 }
428 if (s->max_b_frames != 0){
429 av_log(avctx, AV_LOG_ERROR, "b frames cannot be used with low delay\n");
430 return -1;
431 }
432 }
433
434 if(s->q_scale_type == 1){
435 if(s->codec_id != CODEC_ID_MPEG2VIDEO){
436 av_log(avctx, AV_LOG_ERROR, "non linear quant is only available for mpeg2\n");
437 return -1;
438 }
439 if(avctx->qmax > 12){
440 av_log(avctx, AV_LOG_ERROR, "non linear quant only supports qmax <= 12 currently\n");
441 return -1;
442 }
443 }
444
445 if(s->avctx->thread_count > 1 && s->codec_id != CODEC_ID_MPEG4
446 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO
447 && (s->codec_id != CODEC_ID_H263P || !(s->flags & CODEC_FLAG_H263P_SLICE_STRUCT))){
448 av_log(avctx, AV_LOG_ERROR, "multi threaded encoding not supported by codec\n");
449 return -1;
450 }
451
452 if(s->avctx->thread_count > 1)
453 s->rtp_mode= 1;
454
455 if(!avctx->time_base.den || !avctx->time_base.num){
456 av_log(avctx, AV_LOG_ERROR, "framerate not set\n");
457 return -1;
458 }
459
460 i= (INT_MAX/2+128)>>8;
461 if(avctx->me_threshold >= i){
462 av_log(avctx, AV_LOG_ERROR, "me_threshold too large, max is %d\n", i - 1);
463 return -1;
464 }
465 if(avctx->mb_threshold >= i){
466 av_log(avctx, AV_LOG_ERROR, "mb_threshold too large, max is %d\n", i - 1);
467 return -1;
468 }
469
470 if(avctx->b_frame_strategy && (avctx->flags&CODEC_FLAG_PASS2)){
471 av_log(avctx, AV_LOG_INFO, "notice: b_frame_strategy only affects the first pass\n");
472 avctx->b_frame_strategy = 0;
473 }
474
475 i= ff_gcd(avctx->time_base.den, avctx->time_base.num);
476 if(i > 1){
477 av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n");
478 avctx->time_base.den /= i;
479 avctx->time_base.num /= i;
480// return -1;
481 }
482
483 if(s->codec_id==CODEC_ID_MJPEG){
484 s->intra_quant_bias= 1<<(QUANT_BIAS_SHIFT-1); //(a + x/2)/x
485 s->inter_quant_bias= 0;
486 }else if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO){
487 s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x
488 s->inter_quant_bias= 0;
489 }else{
490 s->intra_quant_bias=0;
491 s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x
492 }
493
494 if(avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
495 s->intra_quant_bias= avctx->intra_quant_bias;
496 if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)
497 s->inter_quant_bias= avctx->inter_quant_bias;
498
499 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift);
500
501 if(avctx->codec_id == CODEC_ID_MPEG4 && s->avctx->time_base.den > (1<<16)-1){
502 av_log(avctx, AV_LOG_ERROR, "timebase not supported by mpeg 4 standard\n");
503 return -1;
504 }
505 s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1;
506
507 switch(avctx->codec->id) {
508 case CODEC_ID_MPEG1VIDEO:
509 s->out_format = FMT_MPEG1;
510 s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
511 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
512 break;
513 case CODEC_ID_MPEG2VIDEO:
514 s->out_format = FMT_MPEG1;
515 s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
516 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
517 s->rtp_mode= 1;
518 break;
519 case CODEC_ID_LJPEG:
520 case CODEC_ID_MJPEG:
521 s->out_format = FMT_MJPEG;
522 s->intra_only = 1; /* force intra only for jpeg */
523 s->mjpeg_vsample[0] = 2;
524 s->mjpeg_vsample[1] = 2>>chroma_v_shift;
525 s->mjpeg_vsample[2] = 2>>chroma_v_shift;
526 s->mjpeg_hsample[0] = 2;
527 s->mjpeg_hsample[1] = 2>>chroma_h_shift;
528 s->mjpeg_hsample[2] = 2>>chroma_h_shift;
529 if (!(ENABLE_MJPEG_ENCODER || ENABLE_LJPEG_ENCODER)
530 || ff_mjpeg_encode_init(s) < 0)
531 return -1;
532 avctx->delay=0;
533 s->low_delay=1;
534 break;
535 case CODEC_ID_H261:
536 if (!ENABLE_H261_ENCODER) return -1;
537 if (ff_h261_get_picture_format(s->width, s->height) < 0) {
538 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);
539 return -1;
540 }
541 s->out_format = FMT_H261;
542 avctx->delay=0;
543 s->low_delay=1;
544 break;
545 case CODEC_ID_H263:
546 if (h263_get_picture_format(s->width, s->height) == 7) {
547 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);
548 return -1;
549 }
550 s->out_format = FMT_H263;
551 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
552 avctx->delay=0;
553 s->low_delay=1;
554 break;
555 case CODEC_ID_H263P:
556 s->out_format = FMT_H263;
557 s->h263_plus = 1;
558 /* Fx */
559 s->umvplus = (avctx->flags & CODEC_FLAG_H263P_UMV) ? 1:0;
560 s->h263_aic= (avctx->flags & CODEC_FLAG_AC_PRED) ? 1:0;
561 s->modified_quant= s->h263_aic;
562 s->alt_inter_vlc= (avctx->flags & CODEC_FLAG_H263P_AIV) ? 1:0;
563 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
564 s->loop_filter= (avctx->flags & CODEC_FLAG_LOOP_FILTER) ? 1:0;
565 s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
566 s->h263_slice_structured= (s->flags & CODEC_FLAG_H263P_SLICE_STRUCT) ? 1:0;
567
568 /* /Fx */
569 /* These are just to be sure */
570 avctx->delay=0;
571 s->low_delay=1;
572 break;
573 case CODEC_ID_FLV1:
574 s->out_format = FMT_H263;
575 s->h263_flv = 2; /* format = 1; 11-bit codes */
576 s->unrestricted_mv = 1;
577 s->rtp_mode=0; /* don't allow GOB */
578 avctx->delay=0;
579 s->low_delay=1;
580 break;
581 case CODEC_ID_RV10:
582 s->out_format = FMT_H263;
583 avctx->delay=0;
584 s->low_delay=1;
585 break;
586 case CODEC_ID_RV20:
587 s->out_format = FMT_H263;
588 avctx->delay=0;
589 s->low_delay=1;
590 s->modified_quant=1;
591 s->h263_aic=1;
592 s->h263_plus=1;
593 s->loop_filter=1;
594 s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
595 break;
596 case CODEC_ID_MPEG4:
597 s->out_format = FMT_H263;
598 s->h263_pred = 1;
599 s->unrestricted_mv = 1;
600 s->low_delay= s->max_b_frames ? 0 : 1;
601 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
602 break;
603 case CODEC_ID_MSMPEG4V1:
604 s->out_format = FMT_H263;
605 s->h263_msmpeg4 = 1;
606 s->h263_pred = 1;
607 s->unrestricted_mv = 1;
608 s->msmpeg4_version= 1;
609 avctx->delay=0;
610 s->low_delay=1;
611 break;
612 case CODEC_ID_MSMPEG4V2:
613 s->out_format = FMT_H263;
614 s->h263_msmpeg4 = 1;
615 s->h263_pred = 1;
616 s->unrestricted_mv = 1;
617 s->msmpeg4_version= 2;
618 avctx->delay=0;
619 s->low_delay=1;
620 break;
621 case CODEC_ID_MSMPEG4V3:
622 s->out_format = FMT_H263;
623 s->h263_msmpeg4 = 1;
624 s->h263_pred = 1;
625 s->unrestricted_mv = 1;
626 s->msmpeg4_version= 3;
627 s->flipflop_rounding=1;
628 avctx->delay=0;
629 s->low_delay=1;
630 break;
631 case CODEC_ID_WMV1:
632 s->out_format = FMT_H263;
633 s->h263_msmpeg4 = 1;
634 s->h263_pred = 1;
635 s->unrestricted_mv = 1;
636 s->msmpeg4_version= 4;
637 s->flipflop_rounding=1;
638 avctx->delay=0;
639 s->low_delay=1;
640 break;
641 case CODEC_ID_WMV2:
642 s->out_format = FMT_H263;
643 s->h263_msmpeg4 = 1;
644 s->h263_pred = 1;
645 s->unrestricted_mv = 1;
646 s->msmpeg4_version= 5;
647 s->flipflop_rounding=1;
648 avctx->delay=0;
649 s->low_delay=1;
650 break;
651 default:
652 return -1;
653 }
654
655 avctx->has_b_frames= !s->low_delay;
656
657 s->encoding = 1;
658
659 /* init */
660 if (MPV_common_init(s) < 0)
661 return -1;
662
663 if(s->modified_quant)
664 s->chroma_qscale_table= ff_h263_chroma_qscale_table;
665 s->progressive_frame=
666 s->progressive_sequence= !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN));
667 s->quant_precision=5;
668
669 ff_set_cmp(&s->dsp, s->dsp.ildct_cmp, s->avctx->ildct_cmp);
670 ff_set_cmp(&s->dsp, s->dsp.frame_skip_cmp, s->avctx->frame_skip_cmp);
671
672 if (ENABLE_H261_ENCODER && s->out_format == FMT_H261)
673 ff_h261_encode_init(s);
674 if (s->out_format == FMT_H263)
675 h263_encode_init(s);
676 if (ENABLE_MSMPEG4_ENCODER && s->msmpeg4_version)
677 ff_msmpeg4_encode_init(s);
678 if (s->out_format == FMT_MPEG1)
679 ff_mpeg1_encode_init(s);
680
681 /* init q matrix */
682 for(i=0;i<64;i++) {
683 int j= s->dsp.idct_permutation[i];
684 if(s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){
685 s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
686 s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
687 }else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){
688 s->intra_matrix[j] =
689 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
690 }else
691 { /* mpeg1/2 */
692 s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
693 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
694 }
695 if(s->avctx->intra_matrix)
696 s->intra_matrix[j] = s->avctx->intra_matrix[i];
697 if(s->avctx->inter_matrix)
698 s->inter_matrix[j] = s->avctx->inter_matrix[i];
699 }
700
701 /* precompute matrix */
702 /* for mjpeg, we do include qscale in the matrix */
703 if (s->out_format != FMT_MJPEG) {
704 convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
705 s->intra_matrix, s->intra_quant_bias, avctx->qmin, 31, 1);
706 convert_matrix(&s->dsp, s->q_inter_matrix, s->q_inter_matrix16,
707 s->inter_matrix, s->inter_quant_bias, avctx->qmin, 31, 0);
708 }
709
710 if(ff_rate_control_init(s) < 0)
711 return -1;
712
713 return 0;
714}
715
716int MPV_encode_end(AVCodecContext *avctx)
717{
718 MpegEncContext *s = avctx->priv_data;
719
720 ff_rate_control_uninit(s);
721
722 MPV_common_end(s);
723 if ((ENABLE_MJPEG_ENCODER || ENABLE_LJPEG_ENCODER) && s->out_format == FMT_MJPEG)
724 ff_mjpeg_encode_close(s);
725
726 av_freep(&avctx->extradata);
727
728 return 0;
729}
730
731static int get_sae(uint8_t *src, int ref, int stride){
732 int x,y;
733 int acc=0;
734
735 for(y=0; y<16; y++){
736 for(x=0; x<16; x++){
737 acc+= FFABS(src[x+y*stride] - ref);
738 }
739 }
740
741 return acc;
742}
743
744static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride){
745 int x, y, w, h;
746 int acc=0;
747
748 w= s->width &~15;
749 h= s->height&~15;
750
751 for(y=0; y<h; y+=16){
752 for(x=0; x<w; x+=16){
753 int offset= x + y*stride;
754 int sad = s->dsp.sad[0](NULL, src + offset, ref + offset, stride, 16);
755 int mean= (s->dsp.pix_sum(src + offset, stride) + 128)>>8;
756 int sae = get_sae(src + offset, mean, stride);
757
758 acc+= sae + 500 < sad;
759 }
760 }
761 return acc;
762}
763
764
765static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
766 AVFrame *pic=NULL;
767 int64_t pts;
768 int i;
769 const int encoding_delay= s->max_b_frames;
770 int direct=1;
771
772 if(pic_arg){
773 pts= pic_arg->pts;
774 pic_arg->display_picture_number= s->input_picture_number++;
775
776 if(pts != AV_NOPTS_VALUE){
777 if(s->user_specified_pts != AV_NOPTS_VALUE){
778 int64_t time= pts;
779 int64_t last= s->user_specified_pts;
780
781 if(time <= last){
782 av_log(s->avctx, AV_LOG_ERROR, "Error, Invalid timestamp=%"PRId64", last=%"PRId64"\n", pts, s->user_specified_pts);
783 return -1;
784 }
785 }
786 s->user_specified_pts= pts;
787 }else{
788 if(s->user_specified_pts != AV_NOPTS_VALUE){
789 s->user_specified_pts=
790 pts= s->user_specified_pts + 1;
791 av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%"PRId64")\n", pts);
792 }else{
793 pts= pic_arg->display_picture_number;
794 }
795 }
796 }
797
798 if(pic_arg){
799 if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0;
800 if(pic_arg->linesize[0] != s->linesize) direct=0;
801 if(pic_arg->linesize[1] != s->uvlinesize) direct=0;
802 if(pic_arg->linesize[2] != s->uvlinesize) direct=0;
803
804// av_log(AV_LOG_DEBUG, "%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize);
805
806 if(direct){
807 i= ff_find_unused_picture(s, 1);
808
809 pic= (AVFrame*)&s->picture[i];
810 pic->reference= 3;
811
812 for(i=0; i<4; i++){
813 pic->data[i]= pic_arg->data[i];
814 pic->linesize[i]= pic_arg->linesize[i];
815 }
816 alloc_picture(s, (Picture*)pic, 1);
817 }else{
818 i= ff_find_unused_picture(s, 0);
819
820 pic= (AVFrame*)&s->picture[i];
821 pic->reference= 3;
822
823 alloc_picture(s, (Picture*)pic, 0);
824
825 if( pic->data[0] + INPLACE_OFFSET == pic_arg->data[0]
826 && pic->data[1] + INPLACE_OFFSET == pic_arg->data[1]
827 && pic->data[2] + INPLACE_OFFSET == pic_arg->data[2]){
828 // empty
829 }else{
830 int h_chroma_shift, v_chroma_shift;
831 avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
832
833 for(i=0; i<3; i++){
834 int src_stride= pic_arg->linesize[i];
835 int dst_stride= i ? s->uvlinesize : s->linesize;
836 int h_shift= i ? h_chroma_shift : 0;
837 int v_shift= i ? v_chroma_shift : 0;
838 int w= s->width >>h_shift;
839 int h= s->height>>v_shift;
840 uint8_t *src= pic_arg->data[i];
841 uint8_t *dst= pic->data[i];
842
843 if(!s->avctx->rc_buffer_size)
844 dst +=INPLACE_OFFSET;
845
846 if(src_stride==dst_stride)
847 memcpy(dst, src, src_stride*h);
848 else{
849 while(h--){
850 memcpy(dst, src, w);
851 dst += dst_stride;
852 src += src_stride;
853 }
854 }
855 }
856 }
857 }
858 copy_picture_attributes(s, pic, pic_arg);
859 pic->pts= pts; //we set this here to avoid modifiying pic_arg
860 }
861
862 /* shift buffer entries */
863 for(i=1; i<MAX_PICTURE_COUNT /*s->encoding_delay+1*/; i++)
864 s->input_picture[i-1]= s->input_picture[i];
865
866 s->input_picture[encoding_delay]= (Picture*)pic;
867
868 return 0;
869}
870
871static int skip_check(MpegEncContext *s, Picture *p, Picture *ref){
872 int x, y, plane;
873 int score=0;
874 int64_t score64=0;
875
876 for(plane=0; plane<3; plane++){
877 const int stride= p->linesize[plane];
878 const int bw= plane ? 1 : 2;
879 for(y=0; y<s->mb_height*bw; y++){
880 for(x=0; x<s->mb_width*bw; x++){
881 int off= p->type == FF_BUFFER_TYPE_SHARED ? 0: 16;
882 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);
883
884 switch(s->avctx->frame_skip_exp){
885 case 0: score= FFMAX(score, v); break;
886 case 1: score+= FFABS(v);break;
887 case 2: score+= v*v;break;
888 case 3: score64+= FFABS(v*v*(int64_t)v);break;
889 case 4: score64+= v*v*(int64_t)(v*v);break;
890 }
891 }
892 }
893 }
894
895 if(score) score64= score;
896
897 if(score64 < s->avctx->frame_skip_threshold)
898 return 1;
899 if(score64 < ((s->avctx->frame_skip_factor * (int64_t)s->lambda)>>8))
900 return 1;
901 return 0;
902}
903
904static int estimate_best_b_count(MpegEncContext *s){
905 AVCodec *codec= avcodec_find_encoder(s->avctx->codec_id);
906 AVCodecContext *c= avcodec_alloc_context();
907 AVFrame input[FF_MAX_B_FRAMES+2];
908 const int scale= s->avctx->brd_scale;
909 int i, j, out_size, p_lambda, b_lambda, lambda2;
910 int outbuf_size= s->width * s->height; //FIXME
911 uint8_t *outbuf= av_malloc(outbuf_size);
912 int64_t best_rd= INT64_MAX;
913 int best_b_count= -1;
914
915 assert(scale>=0 && scale <=3);
916
917// emms_c();
918 p_lambda= s->last_lambda_for[P_TYPE]; //s->next_picture_ptr->quality;
919 b_lambda= s->last_lambda_for[B_TYPE]; //p_lambda *FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset;
920 if(!b_lambda) b_lambda= p_lambda; //FIXME we should do this somewhere else
921 lambda2= (b_lambda*b_lambda + (1<<FF_LAMBDA_SHIFT)/2 ) >> FF_LAMBDA_SHIFT;
922
923 c->width = s->width >> scale;
924 c->height= s->height>> scale;
925 c->flags= CODEC_FLAG_QSCALE | CODEC_FLAG_PSNR | CODEC_FLAG_INPUT_PRESERVED /*| CODEC_FLAG_EMU_EDGE*/;
926 c->flags|= s->avctx->flags & CODEC_FLAG_QPEL;
927 c->mb_decision= s->avctx->mb_decision;
928 c->me_cmp= s->avctx->me_cmp;
929 c->mb_cmp= s->avctx->mb_cmp;
930 c->me_sub_cmp= s->avctx->me_sub_cmp;
931 c->pix_fmt = PIX_FMT_YUV420P;
932 c->time_base= s->avctx->time_base;
933 c->max_b_frames= s->max_b_frames;
934
935 if (avcodec_open(c, codec) < 0)
936 return -1;
937
938 for(i=0; i<s->max_b_frames+2; i++){
939 int ysize= c->width*c->height;
940 int csize= (c->width/2)*(c->height/2);
941 Picture pre_input, *pre_input_ptr= i ? s->input_picture[i-1] : s->next_picture_ptr;
942
943 avcodec_get_frame_defaults(&input[i]);
944 input[i].data[0]= av_malloc(ysize + 2*csize);
945 input[i].data[1]= input[i].data[0] + ysize;
946 input[i].data[2]= input[i].data[1] + csize;
947 input[i].linesize[0]= c->width;
948 input[i].linesize[1]=
949 input[i].linesize[2]= c->width/2;
950
951 if(pre_input_ptr && (!i || s->input_picture[i-1])) {
952 pre_input= *pre_input_ptr;
953
954 if(pre_input.type != FF_BUFFER_TYPE_SHARED && i) {
955 pre_input.data[0]+=INPLACE_OFFSET;
956 pre_input.data[1]+=INPLACE_OFFSET;
957 pre_input.data[2]+=INPLACE_OFFSET;
958 }
959
960 s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0], pre_input.data[0], pre_input.linesize[0], c->width, c->height);
961 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);
962 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);
963 }
964 }
965
966 for(j=0; j<s->max_b_frames+1; j++){
967 int64_t rd=0;
968
969 if(!s->input_picture[j])
970 break;
971
972 c->error[0]= c->error[1]= c->error[2]= 0;
973
974 input[0].pict_type= I_TYPE;
975 input[0].quality= 1 * FF_QP2LAMBDA;
976 out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[0]);
977// rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT;
978
979 for(i=0; i<s->max_b_frames+1; i++){
980 int is_p= i % (j+1) == j || i==s->max_b_frames;
981
982 input[i+1].pict_type= is_p ? P_TYPE : B_TYPE;
983 input[i+1].quality= is_p ? p_lambda : b_lambda;
984 out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[i+1]);
985 rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
986 }
987
988 /* get the delayed frames */
989 while(out_size){
990 out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);
991 rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
992 }
993
994 rd += c->error[0] + c->error[1] + c->error[2];
995
996 if(rd < best_rd){
997 best_rd= rd;
998 best_b_count= j;
999 }
1000 }
1001
1002 av_freep(&outbuf);
1003 avcodec_close(c);
1004 av_freep(&c);
1005
1006 for(i=0; i<s->max_b_frames+2; i++){
1007 av_freep(&input[i].data[0]);
1008 }
1009
1010 return best_b_count;
1011}
1012
1013static void select_input_picture(MpegEncContext *s){
1014 int i;
1015
1016 for(i=1; i<MAX_PICTURE_COUNT; i++)
1017 s->reordered_input_picture[i-1]= s->reordered_input_picture[i];
1018 s->reordered_input_picture[MAX_PICTURE_COUNT-1]= NULL;
1019
1020 /* set next picture type & ordering */
1021 if(s->reordered_input_picture[0]==NULL && s->input_picture[0]){
1022 if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture_ptr==NULL || s->intra_only){
1023 s->reordered_input_picture[0]= s->input_picture[0];
1024 s->reordered_input_picture[0]->pict_type= I_TYPE;
1025 s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1026 }else{
1027 int b_frames;
1028
1029 if(s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor){
1030 if(s->picture_in_gop_number < s->gop_size && skip_check(s, s->input_picture[0], s->next_picture_ptr)){
1031 //FIXME check that te gop check above is +-1 correct
1032//av_log(NULL, AV_LOG_DEBUG, "skip %p %"PRId64"\n", s->input_picture[0]->data[0], s->input_picture[0]->pts);
1033
1034 if(s->input_picture[0]->type == FF_BUFFER_TYPE_SHARED){
1035 for(i=0; i<4; i++)
1036 s->input_picture[0]->data[i]= NULL;
1037 s->input_picture[0]->type= 0;
1038 }else{
1039 assert( s->input_picture[0]->type==FF_BUFFER_TYPE_USER
1040 || s->input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1041
1042 s->avctx->release_buffer(s->avctx, (AVFrame*)s->input_picture[0]);
1043 }
1044
1045 emms_c();
1046 ff_vbv_update(s, 0);
1047
1048 goto no_output_pic;
1049 }
1050 }
1051
1052 if(s->flags&CODEC_FLAG_PASS2){
1053 for(i=0; i<s->max_b_frames+1; i++){
1054 int pict_num= s->input_picture[0]->display_picture_number + i;
1055
1056 if(pict_num >= s->rc_context.num_entries)
1057 break;
1058 if(!s->input_picture[i]){
1059 s->rc_context.entry[pict_num-1].new_pict_type = P_TYPE;
1060 break;
1061 }
1062
1063 s->input_picture[i]->pict_type=
1064 s->rc_context.entry[pict_num].new_pict_type;
1065 }
1066 }
1067
1068 if(s->avctx->b_frame_strategy==0){
1069 b_frames= s->max_b_frames;
1070 while(b_frames && !s->input_picture[b_frames]) b_frames--;
1071 }else if(s->avctx->b_frame_strategy==1){
1072 for(i=1; i<s->max_b_frames+1; i++){
1073 if(s->input_picture[i] && s->input_picture[i]->b_frame_score==0){
1074 s->input_picture[i]->b_frame_score=
1075 get_intra_count(s, s->input_picture[i ]->data[0],
1076 s->input_picture[i-1]->data[0], s->linesize) + 1;
1077 }
1078 }
1079 for(i=0; i<s->max_b_frames+1; i++){
1080 if(s->input_picture[i]==NULL || s->input_picture[i]->b_frame_score - 1 > s->mb_num/s->avctx->b_sensitivity) break;
1081 }
1082
1083 b_frames= FFMAX(0, i-1);
1084
1085 /* reset scores */
1086 for(i=0; i<b_frames+1; i++){
1087 s->input_picture[i]->b_frame_score=0;
1088 }
1089 }else if(s->avctx->b_frame_strategy==2){
1090 b_frames= estimate_best_b_count(s);
1091 }else{
1092 av_log(s->avctx, AV_LOG_ERROR, "illegal b frame strategy\n");
1093 b_frames=0;
1094 }
1095
1096 emms_c();
1097//static int b_count=0;
1098//b_count+= b_frames;
1099//av_log(s->avctx, AV_LOG_DEBUG, "b_frames: %d\n", b_count);
1100
1101 for(i= b_frames - 1; i>=0; i--){
1102 int type= s->input_picture[i]->pict_type;
1103 if(type && type != B_TYPE)
1104 b_frames= i;
1105 }
1106 if(s->input_picture[b_frames]->pict_type == B_TYPE && b_frames == s->max_b_frames){
1107 av_log(s->avctx, AV_LOG_ERROR, "warning, too many b frames in a row\n");
1108 }
1109
1110 if(s->picture_in_gop_number + b_frames >= s->gop_size){
1111 if((s->flags2 & CODEC_FLAG2_STRICT_GOP) && s->gop_size > s->picture_in_gop_number){
1112 b_frames= s->gop_size - s->picture_in_gop_number - 1;
1113 }else{
1114 if(s->flags & CODEC_FLAG_CLOSED_GOP)
1115 b_frames=0;
1116 s->input_picture[b_frames]->pict_type= I_TYPE;
1117 }
1118 }
1119
1120 if( (s->flags & CODEC_FLAG_CLOSED_GOP)
1121 && b_frames
1122 && s->input_picture[b_frames]->pict_type== I_TYPE)
1123 b_frames--;
1124
1125 s->reordered_input_picture[0]= s->input_picture[b_frames];
1126 if(s->reordered_input_picture[0]->pict_type != I_TYPE)
1127 s->reordered_input_picture[0]->pict_type= P_TYPE;
1128 s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1129 for(i=0; i<b_frames; i++){
1130 s->reordered_input_picture[i+1]= s->input_picture[i];
1131 s->reordered_input_picture[i+1]->pict_type= B_TYPE;
1132 s->reordered_input_picture[i+1]->coded_picture_number= s->coded_picture_number++;
1133 }
1134 }
1135 }
1136no_output_pic:
1137 if(s->reordered_input_picture[0]){
1138 s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=B_TYPE ? 3 : 0;
1139
1140 copy_picture(&s->new_picture, s->reordered_input_picture[0]);
1141
1142 if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_SHARED || s->avctx->rc_buffer_size){
1143 // input is a shared pix, so we can't modifiy it -> alloc a new one & ensure that the shared one is reuseable
1144
1145 int i= ff_find_unused_picture(s, 0);
1146 Picture *pic= &s->picture[i];
1147
1148 pic->reference = s->reordered_input_picture[0]->reference;
1149 alloc_picture(s, pic, 0);
1150
1151 /* mark us unused / free shared pic */
1152 if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_INTERNAL)
1153 s->avctx->release_buffer(s->avctx, (AVFrame*)s->reordered_input_picture[0]);
1154 for(i=0; i<4; i++)
1155 s->reordered_input_picture[0]->data[i]= NULL;
1156 s->reordered_input_picture[0]->type= 0;
1157
1158 copy_picture_attributes(s, (AVFrame*)pic, (AVFrame*)s->reordered_input_picture[0]);
1159
1160 s->current_picture_ptr= pic;
1161 }else{
1162 // input is not a shared pix -> reuse buffer for current_pix
1163
1164 assert( s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
1165 || s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1166
1167 s->current_picture_ptr= s->reordered_input_picture[0];
1168 for(i=0; i<4; i++){
1169 s->new_picture.data[i]+= INPLACE_OFFSET;
1170 }
1171 }
1172 copy_picture(&s->current_picture, s->current_picture_ptr);
1173
1174 s->picture_number= s->new_picture.display_picture_number;
1175//printf("dpn:%d\n", s->picture_number);
1176 }else{
1177 memset(&s->new_picture, 0, sizeof(Picture));
1178 }
1179}
1180
1181int MPV_encode_picture(AVCodecContext *avctx,
1182 unsigned char *buf, int buf_size, void *data)
1183{
1184 MpegEncContext *s = avctx->priv_data;
1185 AVFrame *pic_arg = data;
1186 int i, stuffing_count;
1187
1188 for(i=0; i<avctx->thread_count; i++){
1189 int start_y= s->thread_context[i]->start_mb_y;
1190 int end_y= s->thread_context[i]-> end_mb_y;
1191 int h= s->mb_height;
1192 uint8_t *start= buf + (size_t)(((int64_t) buf_size)*start_y/h);
1193 uint8_t *end = buf + (size_t)(((int64_t) buf_size)* end_y/h);
1194
1195 init_put_bits(&s->thread_context[i]->pb, start, end - start);
1196 }
1197
1198 s->picture_in_gop_number++;
1199
1200 if(load_input_picture(s, pic_arg) < 0)
1201 return -1;
1202
1203 select_input_picture(s);
1204
1205 /* output? */
1206 if(s->new_picture.data[0]){
1207 s->pict_type= s->new_picture.pict_type;
1208//emms_c();
1209//printf("qs:%f %f %d\n", s->new_picture.quality, s->current_picture.quality, s->qscale);
1210 MPV_frame_start(s, avctx);
1211vbv_retry:
1212 if (encode_picture(s, s->picture_number) < 0)
1213 return -1;
1214
1215 avctx->real_pict_num = s->picture_number;
1216 avctx->header_bits = s->header_bits;
1217 avctx->mv_bits = s->mv_bits;
1218 avctx->misc_bits = s->misc_bits;
1219 avctx->i_tex_bits = s->i_tex_bits;
1220 avctx->p_tex_bits = s->p_tex_bits;
1221 avctx->i_count = s->i_count;
1222 avctx->p_count = s->mb_num - s->i_count - s->skip_count; //FIXME f/b_count in avctx
1223 avctx->skip_count = s->skip_count;
1224
1225 MPV_frame_end(s);
1226
1227 if (ENABLE_MJPEG_ENCODER && s->out_format == FMT_MJPEG)
1228 ff_mjpeg_encode_picture_trailer(s);
1229
1230 if(avctx->rc_buffer_size){
1231 RateControlContext *rcc= &s->rc_context;
1232 int max_size= rcc->buffer_index/3;
1233
1234 if(put_bits_count(&s->pb) > max_size && s->lambda < s->avctx->lmax){
1235 s->next_lambda= FFMAX(s->lambda+1, s->lambda*(s->qscale+1) / s->qscale);
1236 if(s->adaptive_quant){
1237 int i;
1238 for(i=0; i<s->mb_height*s->mb_stride; i++)
1239 s->lambda_table[i]= FFMAX(s->lambda_table[i]+1, s->lambda_table[i]*(s->qscale+1) / s->qscale);
1240 }
1241 s->mb_skipped = 0; //done in MPV_frame_start()
1242 if(s->pict_type==P_TYPE){ //done in encode_picture() so we must undo it
1243 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
1244 s->no_rounding ^= 1;
1245 }
1246 if(s->pict_type!=B_TYPE){
1247 s->time_base= s->last_time_base;
1248 s->last_non_b_time= s->time - s->pp_time;
1249 }
1250// av_log(NULL, AV_LOG_ERROR, "R:%d ", s->next_lambda);
1251 for(i=0; i<avctx->thread_count; i++){
1252 PutBitContext *pb= &s->thread_context[i]->pb;
1253 init_put_bits(pb, pb->buf, pb->buf_end - pb->buf);
1254 }
1255 goto vbv_retry;
1256 }
1257
1258 assert(s->avctx->rc_max_rate);
1259 }
1260
1261 if(s->flags&CODEC_FLAG_PASS1)
1262 ff_write_pass1_stats(s);
1263
1264 for(i=0; i<4; i++){
1265 s->current_picture_ptr->error[i]= s->current_picture.error[i];
1266 avctx->error[i] += s->current_picture_ptr->error[i];
1267 }
1268
1269 if(s->flags&CODEC_FLAG_PASS1)
1270 assert(avctx->header_bits + avctx->mv_bits + avctx->misc_bits + avctx->i_tex_bits + avctx->p_tex_bits == put_bits_count(&s->pb));
1271 flush_put_bits(&s->pb);
1272 s->frame_bits = put_bits_count(&s->pb);
1273
1274 stuffing_count= ff_vbv_update(s, s->frame_bits);
1275 if(stuffing_count){
1276 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < stuffing_count + 50){
1277 av_log(s->avctx, AV_LOG_ERROR, "stuffing too large\n");
1278 return -1;
1279 }
1280
1281 switch(s->codec_id){
1282 case CODEC_ID_MPEG1VIDEO:
1283 case CODEC_ID_MPEG2VIDEO:
1284 while(stuffing_count--){
1285 put_bits(&s->pb, 8, 0);
1286 }
1287 break;
1288 case CODEC_ID_MPEG4:
1289 put_bits(&s->pb, 16, 0);
1290 put_bits(&s->pb, 16, 0x1C3);
1291 stuffing_count -= 4;
1292 while(stuffing_count--){
1293 put_bits(&s->pb, 8, 0xFF);
1294 }
1295 break;
1296 default:
1297 av_log(s->avctx, AV_LOG_ERROR, "vbv buffer overflow\n");
1298 }
1299 flush_put_bits(&s->pb);
1300 s->frame_bits = put_bits_count(&s->pb);
1301 }
1302
1303 /* update mpeg1/2 vbv_delay for CBR */
1304 if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && s->out_format == FMT_MPEG1
1305 && 90000LL * (avctx->rc_buffer_size-1) <= s->avctx->rc_max_rate*0xFFFFLL){
1306 int vbv_delay;
1307
1308 assert(s->repeat_first_field==0);
1309
1310 vbv_delay= lrintf(90000 * s->rc_context.buffer_index / s->avctx->rc_max_rate);
1311 assert(vbv_delay < 0xFFFF);
1312
1313 s->vbv_delay_ptr[0] &= 0xF8;
1314 s->vbv_delay_ptr[0] |= vbv_delay>>13;
1315 s->vbv_delay_ptr[1] = vbv_delay>>5;
1316 s->vbv_delay_ptr[2] &= 0x07;
1317 s->vbv_delay_ptr[2] |= vbv_delay<<3;
1318 }
1319 s->total_bits += s->frame_bits;
1320 avctx->frame_bits = s->frame_bits;
1321 }else{
1322 assert((pbBufPtr(&s->pb) == s->pb.buf));
1323 s->frame_bits=0;
1324 }
1325 assert((s->frame_bits&7)==0);
1326
1327 return s->frame_bits/8;
1328}
1329
1330static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold)
1331{
1332 static const char tab[64]=
1333 {3,2,2,1,1,1,1,1,
1334 1,1,1,1,1,1,1,1,
1335 1,1,1,1,1,1,1,1,
1336 0,0,0,0,0,0,0,0,
1337 0,0,0,0,0,0,0,0,
1338 0,0,0,0,0,0,0,0,
1339 0,0,0,0,0,0,0,0,
1340 0,0,0,0,0,0,0,0};
1341 int score=0;
1342 int run=0;
1343 int i;
1344 DCTELEM *block= s->block[n];
1345 const int last_index= s->block_last_index[n];
1346 int skip_dc;
1347
1348 if(threshold<0){
1349 skip_dc=0;
1350 threshold= -threshold;
1351 }else
1352 skip_dc=1;
1353
1354 /* are all which we could set to zero are allready zero? */
1355 if(last_index<=skip_dc - 1) return;
1356
1357 for(i=0; i<=last_index; i++){
1358 const int j = s->intra_scantable.permutated[i];
1359 const int level = FFABS(block[j]);
1360 if(level==1){
1361 if(skip_dc && i==0) continue;
1362 score+= tab[run];
1363 run=0;
1364 }else if(level>1){
1365 return;
1366 }else{
1367 run++;
1368 }
1369 }
1370 if(score >= threshold) return;
1371 for(i=skip_dc; i<=last_index; i++){
1372 const int j = s->intra_scantable.permutated[i];
1373 block[j]=0;
1374 }
1375 if(block[0]) s->block_last_index[n]= 0;
1376 else s->block_last_index[n]= -1;
1377}
1378
1379static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1380{
1381 int i;
1382 const int maxlevel= s->max_qcoeff;
1383 const int minlevel= s->min_qcoeff;
1384 int overflow=0;
1385
1386 if(s->mb_intra){
1387 i=1; //skip clipping of intra dc
1388 }else
1389 i=0;
1390
1391 for(;i<=last_index; i++){
1392 const int j= s->intra_scantable.permutated[i];
1393 int level = block[j];
1394
1395 if (level>maxlevel){
1396 level=maxlevel;
1397 overflow++;
1398 }else if(level<minlevel){
1399 level=minlevel;
1400 overflow++;
1401 }
1402
1403 block[j]= level;
1404 }
1405
1406 if(overflow && s->avctx->mb_decision == FF_MB_DECISION_SIMPLE)
1407 av_log(s->avctx, AV_LOG_INFO, "warning, clipping %d dct coefficients to %d..%d\n", overflow, minlevel, maxlevel);
1408}
1409
1410static void get_vissual_weight(int16_t *weight, uint8_t *ptr, int stride){
1411 int x, y;
1412//FIXME optimize
1413 for(y=0; y<8; y++){
1414 for(x=0; x<8; x++){
1415 int x2, y2;
1416 int sum=0;
1417 int sqr=0;
1418 int count=0;
1419
1420 for(y2= FFMAX(y-1, 0); y2 < FFMIN(8, y+2); y2++){
1421 for(x2= FFMAX(x-1, 0); x2 < FFMIN(8, x+2); x2++){
1422 int v= ptr[x2 + y2*stride];
1423 sum += v;
1424 sqr += v*v;
1425 count++;
1426 }
1427 }
1428 weight[x + 8*y]= (36*ff_sqrt(count*sqr - sum*sum)) / count;
1429 }
1430 }
1431}
1432
1433static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count)
1434{
1435 int16_t weight[8][64];
1436 DCTELEM orig[8][64];
1437 const int mb_x= s->mb_x;
1438 const int mb_y= s->mb_y;
1439 int i;
1440 int skip_dct[8];
1441 int dct_offset = s->linesize*8; //default for progressive frames
1442 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1443 int wrap_y, wrap_c;
1444
1445 for(i=0; i<mb_block_count; i++) skip_dct[i]=s->skipdct;
1446
1447 if(s->adaptive_quant){
1448 const int last_qp= s->qscale;
1449 const int mb_xy= mb_x + mb_y*s->mb_stride;
1450
1451 s->lambda= s->lambda_table[mb_xy];
1452 update_qscale(s);
1453
1454 if(!(s->flags&CODEC_FLAG_QP_RD)){
1455 s->qscale= s->current_picture_ptr->qscale_table[mb_xy];
1456 s->dquant= s->qscale - last_qp;
1457
1458 if(s->out_format==FMT_H263){
1459 s->dquant= av_clip(s->dquant, -2, 2);
1460
1461 if(s->codec_id==CODEC_ID_MPEG4){
1462 if(!s->mb_intra){
1463 if(s->pict_type == B_TYPE){
1464 if(s->dquant&1 || s->mv_dir&MV_DIRECT)
1465 s->dquant= 0;
1466 }
1467 if(s->mv_type==MV_TYPE_8X8)
1468 s->dquant=0;
1469 }
1470 }
1471 }
1472 }
1473 ff_set_qscale(s, last_qp + s->dquant);
1474 }else if(s->flags&CODEC_FLAG_QP_RD)
1475 ff_set_qscale(s, s->qscale + s->dquant);
1476
1477 wrap_y = s->linesize;
1478 wrap_c = s->uvlinesize;
1479 ptr_y = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
1480 ptr_cb = s->new_picture.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1481 ptr_cr = s->new_picture.data[2] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1482
1483 if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
1484 uint8_t *ebuf= s->edge_emu_buffer + 32;
1485 ff_emulated_edge_mc(ebuf , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width , s->height);
1486 ptr_y= ebuf;
1487 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);
1488 ptr_cb= ebuf+18*wrap_y;
1489 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);
1490 ptr_cr= ebuf+18*wrap_y+8;
1491 }
1492
1493 if (s->mb_intra) {
1494 if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1495 int progressive_score, interlaced_score;
1496
1497 s->interlaced_dct=0;
1498 progressive_score= s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y, 8)
1499 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y*8, NULL, wrap_y, 8) - 400;
1500
1501 if(progressive_score > 0){
1502 interlaced_score = s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y*2, 8)
1503 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y , NULL, wrap_y*2, 8);
1504 if(progressive_score > interlaced_score){
1505 s->interlaced_dct=1;
1506
1507 dct_offset= wrap_y;
1508 wrap_y<<=1;
1509 if (s->chroma_format == CHROMA_422)
1510 wrap_c<<=1;
1511 }
1512 }
1513 }
1514
1515 s->dsp.get_pixels(s->block[0], ptr_y , wrap_y);
1516 s->dsp.get_pixels(s->block[1], ptr_y + 8, wrap_y);
1517 s->dsp.get_pixels(s->block[2], ptr_y + dct_offset , wrap_y);
1518 s->dsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y);
1519
1520 if(s->flags&CODEC_FLAG_GRAY){
1521 skip_dct[4]= 1;
1522 skip_dct[5]= 1;
1523 }else{
1524 s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c);
1525 s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c);
1526 if(!s->chroma_y_shift){ /* 422 */
1527 s->dsp.get_pixels(s->block[6], ptr_cb + (dct_offset>>1), wrap_c);
1528 s->dsp.get_pixels(s->block[7], ptr_cr + (dct_offset>>1), wrap_c);
1529 }
1530 }
1531 }else{
1532 op_pixels_func (*op_pix)[4];
1533 qpel_mc_func (*op_qpix)[16];
1534 uint8_t *dest_y, *dest_cb, *dest_cr;
1535
1536 dest_y = s->dest[0];
1537 dest_cb = s->dest[1];
1538 dest_cr = s->dest[2];
1539
1540 if ((!s->no_rounding) || s->pict_type==B_TYPE){
1541 op_pix = s->dsp.put_pixels_tab;
1542 op_qpix= s->dsp.put_qpel_pixels_tab;
1543 }else{
1544 op_pix = s->dsp.put_no_rnd_pixels_tab;
1545 op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab;
1546 }
1547
1548 if (s->mv_dir & MV_DIR_FORWARD) {
1549 MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix);
1550 op_pix = s->dsp.avg_pixels_tab;
1551 op_qpix= s->dsp.avg_qpel_pixels_tab;
1552 }
1553 if (s->mv_dir & MV_DIR_BACKWARD) {
1554 MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix);
1555 }
1556
1557 if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1558 int progressive_score, interlaced_score;
1559
1560 s->interlaced_dct=0;
1561 progressive_score= s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y, 8)
1562 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y*8, ptr_y + wrap_y*8, wrap_y, 8) - 400;
1563
1564 if(s->avctx->ildct_cmp == FF_CMP_VSSE) progressive_score -= 400;
1565
1566 if(progressive_score>0){
1567 interlaced_score = s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y*2, 8)
1568 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y , ptr_y + wrap_y , wrap_y*2, 8);
1569
1570 if(progressive_score > interlaced_score){
1571 s->interlaced_dct=1;
1572
1573 dct_offset= wrap_y;
1574 wrap_y<<=1;
1575 if (s->chroma_format == CHROMA_422)
1576 wrap_c<<=1;
1577 }
1578 }
1579 }
1580
1581 s->dsp.diff_pixels(s->block[0], ptr_y , dest_y , wrap_y);
1582 s->dsp.diff_pixels(s->block[1], ptr_y + 8, dest_y + 8, wrap_y);
1583 s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset , dest_y + dct_offset , wrap_y);
1584 s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y);
1585
1586 if(s->flags&CODEC_FLAG_GRAY){
1587 skip_dct[4]= 1;
1588 skip_dct[5]= 1;
1589 }else{
1590 s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
1591 s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
1592 if(!s->chroma_y_shift){ /* 422 */
1593 s->dsp.diff_pixels(s->block[6], ptr_cb + (dct_offset>>1), dest_cb + (dct_offset>>1), wrap_c);
1594 s->dsp.diff_pixels(s->block[7], ptr_cr + (dct_offset>>1), dest_cr + (dct_offset>>1), wrap_c);
1595 }
1596 }
1597 /* pre quantization */
1598 if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){
1599 //FIXME optimize
1600 if(s->dsp.sad[1](NULL, ptr_y , dest_y , wrap_y, 8) < 20*s->qscale) skip_dct[0]= 1;
1601 if(s->dsp.sad[1](NULL, ptr_y + 8, dest_y + 8, wrap_y, 8) < 20*s->qscale) skip_dct[1]= 1;
1602 if(s->dsp.sad[1](NULL, ptr_y +dct_offset , dest_y +dct_offset , wrap_y, 8) < 20*s->qscale) skip_dct[2]= 1;
1603 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;
1604 if(s->dsp.sad[1](NULL, ptr_cb , dest_cb , wrap_c, 8) < 20*s->qscale) skip_dct[4]= 1;
1605 if(s->dsp.sad[1](NULL, ptr_cr , dest_cr , wrap_c, 8) < 20*s->qscale) skip_dct[5]= 1;
1606 if(!s->chroma_y_shift){ /* 422 */
1607 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;
1608 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;
1609 }
1610 }
1611 }
1612
1613 if(s->avctx->quantizer_noise_shaping){
1614 if(!skip_dct[0]) get_vissual_weight(weight[0], ptr_y , wrap_y);
1615 if(!skip_dct[1]) get_vissual_weight(weight[1], ptr_y + 8, wrap_y);
1616 if(!skip_dct[2]) get_vissual_weight(weight[2], ptr_y + dct_offset , wrap_y);
1617 if(!skip_dct[3]) get_vissual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y);
1618 if(!skip_dct[4]) get_vissual_weight(weight[4], ptr_cb , wrap_c);
1619 if(!skip_dct[5]) get_vissual_weight(weight[5], ptr_cr , wrap_c);
1620 if(!s->chroma_y_shift){ /* 422 */
1621 if(!skip_dct[6]) get_vissual_weight(weight[6], ptr_cb + (dct_offset>>1), wrap_c);
1622 if(!skip_dct[7]) get_vissual_weight(weight[7], ptr_cr + (dct_offset>>1), wrap_c);
1623 }
1624 memcpy(orig[0], s->block[0], sizeof(DCTELEM)*64*mb_block_count);
1625 }
1626
1627 /* DCT & quantize */
1628 assert(s->out_format!=FMT_MJPEG || s->qscale==8);
1629 {
1630 for(i=0;i<mb_block_count;i++) {
1631 if(!skip_dct[i]){
1632 int overflow;
1633 s->block_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow);
1634 // FIXME we could decide to change to quantizer instead of clipping
1635 // JS: I don't think that would be a good idea it could lower quality instead
1636 // of improve it. Just INTRADC clipping deserves changes in quantizer
1637 if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1638 }else
1639 s->block_last_index[i]= -1;
1640 }
1641 if(s->avctx->quantizer_noise_shaping){
1642 for(i=0;i<mb_block_count;i++) {
1643 if(!skip_dct[i]){
1644 s->block_last_index[i] = dct_quantize_refine(s, s->block[i], weight[i], orig[i], i, s->qscale);
1645 }
1646 }
1647 }
1648
1649 if(s->luma_elim_threshold && !s->mb_intra)
1650 for(i=0; i<4; i++)
1651 dct_single_coeff_elimination(s, i, s->luma_elim_threshold);
1652 if(s->chroma_elim_threshold && !s->mb_intra)
1653 for(i=4; i<mb_block_count; i++)
1654 dct_single_coeff_elimination(s, i, s->chroma_elim_threshold);
1655
1656 if(s->flags & CODEC_FLAG_CBP_RD){
1657 for(i=0;i<mb_block_count;i++) {
1658 if(s->block_last_index[i] == -1)
1659 s->coded_score[i]= INT_MAX/256;
1660 }
1661 }
1662 }
1663
1664 if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
1665 s->block_last_index[4]=
1666 s->block_last_index[5]= 0;
1667 s->block[4][0]=
1668 s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale;
1669 }
1670
1671 //non c quantize code returns incorrect block_last_index FIXME
1672 if(s->alternate_scan && s->dct_quantize != dct_quantize_c){
1673 for(i=0; i<mb_block_count; i++){
1674 int j;
1675 if(s->block_last_index[i]>0){
1676 for(j=63; j>0; j--){
1677 if(s->block[i][ s->intra_scantable.permutated[j] ]) break;
1678 }
1679 s->block_last_index[i]= j;
1680 }
1681 }
1682 }
1683
1684 /* huffman encode */
1685 switch(s->codec_id){ //FIXME funct ptr could be slightly faster
1686 case CODEC_ID_MPEG1VIDEO:
1687 case CODEC_ID_MPEG2VIDEO:
1688 mpeg1_encode_mb(s, s->block, motion_x, motion_y); break;
1689 case CODEC_ID_MPEG4:
1690 mpeg4_encode_mb(s, s->block, motion_x, motion_y); break;
1691 case CODEC_ID_MSMPEG4V2:
1692 case CODEC_ID_MSMPEG4V3:
1693 case CODEC_ID_WMV1:
1694 if (ENABLE_MSMPEG4_ENCODER)
1695 msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1696 break;
1697 case CODEC_ID_WMV2:
1698 if (ENABLE_WMV2_ENCODER)
1699 ff_wmv2_encode_mb(s, s->block, motion_x, motion_y);
1700 break;
1701 case CODEC_ID_H261:
1702 if (ENABLE_H261_ENCODER)
1703 ff_h261_encode_mb(s, s->block, motion_x, motion_y);
1704 break;
1705 case CODEC_ID_H263:
1706 case CODEC_ID_H263P:
1707 case CODEC_ID_FLV1:
1708 case CODEC_ID_RV10:
1709 case CODEC_ID_RV20:
1710 h263_encode_mb(s, s->block, motion_x, motion_y); break;
1711 case CODEC_ID_MJPEG:
1712 if (ENABLE_MJPEG_ENCODER)
1713 ff_mjpeg_encode_mb(s, s->block);
1714 break;
1715 default:
1716 assert(0);
1717 }
1718}
1719
1720static av_always_inline void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
1721{
1722 if (s->chroma_format == CHROMA_420) encode_mb_internal(s, motion_x, motion_y, 8, 6);
1723 else encode_mb_internal(s, motion_x, motion_y, 16, 8);
1724}
1725
1726void ff_copy_bits(PutBitContext *pb, uint8_t *src, int length)
1727{
1728 const uint16_t *srcw= (uint16_t*)src;
1729 int words= length>>4;
1730 int bits= length&15;
1731 int i;
1732
1733 if(length==0) return;
1734
1735 if(words < 16){
1736 for(i=0; i<words; i++) put_bits(pb, 16, be2me_16(srcw[i]));
1737 }else if(put_bits_count(pb)&7){
1738 for(i=0; i<words; i++) put_bits(pb, 16, be2me_16(srcw[i]));
1739 }else{
1740 for(i=0; put_bits_count(pb)&31; i++)
1741 put_bits(pb, 8, src[i]);
1742 flush_put_bits(pb);
1743 memcpy(pbBufPtr(pb), src+i, 2*words-i);
1744 skip_put_bytes(pb, 2*words-i);
1745 }
1746
1747 put_bits(pb, bits, be2me_16(srcw[words])>>(16-bits));
1748}
1749
1750static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1751 int i;
1752
1753 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1754
1755 /* mpeg1 */
1756 d->mb_skip_run= s->mb_skip_run;
1757 for(i=0; i<3; i++)
1758 d->last_dc[i]= s->last_dc[i];
1759
1760 /* statistics */
1761 d->mv_bits= s->mv_bits;
1762 d->i_tex_bits= s->i_tex_bits;
1763 d->p_tex_bits= s->p_tex_bits;
1764 d->i_count= s->i_count;
1765 d->f_count= s->f_count;
1766 d->b_count= s->b_count;
1767 d->skip_count= s->skip_count;
1768 d->misc_bits= s->misc_bits;
1769 d->last_bits= 0;
1770
1771 d->mb_skipped= 0;
1772 d->qscale= s->qscale;
1773 d->dquant= s->dquant;
1774}
1775
1776static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1777 int i;
1778
1779 memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
1780 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1781
1782 /* mpeg1 */
1783 d->mb_skip_run= s->mb_skip_run;
1784 for(i=0; i<3; i++)
1785 d->last_dc[i]= s->last_dc[i];
1786
1787 /* statistics */
1788 d->mv_bits= s->mv_bits;
1789 d->i_tex_bits= s->i_tex_bits;
1790 d->p_tex_bits= s->p_tex_bits;
1791 d->i_count= s->i_count;
1792 d->f_count= s->f_count;
1793 d->b_count= s->b_count;
1794 d->skip_count= s->skip_count;
1795 d->misc_bits= s->misc_bits;
1796
1797 d->mb_intra= s->mb_intra;
1798 d->mb_skipped= s->mb_skipped;
1799 d->mv_type= s->mv_type;
1800 d->mv_dir= s->mv_dir;
1801 d->pb= s->pb;
1802 if(s->data_partitioning){
1803 d->pb2= s->pb2;
1804 d->tex_pb= s->tex_pb;
1805 }
1806 d->block= s->block;
1807 for(i=0; i<8; i++)
1808 d->block_last_index[i]= s->block_last_index[i];
1809 d->interlaced_dct= s->interlaced_dct;
1810 d->qscale= s->qscale;
1811}
1812
1813static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type,
1814 PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
1815 int *dmin, int *next_block, int motion_x, int motion_y)
1816{
1817 int score;
1818 uint8_t *dest_backup[3];
1819
1820 copy_context_before_encode(s, backup, type);
1821
1822 s->block= s->blocks[*next_block];
1823 s->pb= pb[*next_block];
1824 if(s->data_partitioning){
1825 s->pb2 = pb2 [*next_block];
1826 s->tex_pb= tex_pb[*next_block];
1827 }
1828
1829 if(*next_block){
1830 memcpy(dest_backup, s->dest, sizeof(s->dest));
1831 s->dest[0] = s->rd_scratchpad;
1832 s->dest[1] = s->rd_scratchpad + 16*s->linesize;
1833 s->dest[2] = s->rd_scratchpad + 16*s->linesize + 8;
1834 assert(s->linesize >= 32); //FIXME
1835 }
1836
1837 encode_mb(s, motion_x, motion_y);
1838
1839 score= put_bits_count(&s->pb);
1840 if(s->data_partitioning){
1841 score+= put_bits_count(&s->pb2);
1842 score+= put_bits_count(&s->tex_pb);
1843 }
1844
1845 if(s->avctx->mb_decision == FF_MB_DECISION_RD){
1846 MPV_decode_mb(s, s->block);
1847
1848 score *= s->lambda2;
1849 score += sse_mb(s) << FF_LAMBDA_SHIFT;
1850 }
1851
1852 if(*next_block){
1853 memcpy(s->dest, dest_backup, sizeof(s->dest));
1854 }
1855
1856 if(score<*dmin){
1857 *dmin= score;
1858 *next_block^=1;
1859
1860 copy_context_after_encode(best, s, type);
1861 }
1862}
1863
1864static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){
1865 uint32_t *sq = ff_squareTbl + 256;
1866 int acc=0;
1867 int x,y;
1868
1869 if(w==16 && h==16)
1870 return s->dsp.sse[0](NULL, src1, src2, stride, 16);
1871 else if(w==8 && h==8)
1872 return s->dsp.sse[1](NULL, src1, src2, stride, 8);
1873
1874 for(y=0; y<h; y++){
1875 for(x=0; x<w; x++){
1876 acc+= sq[src1[x + y*stride] - src2[x + y*stride]];
1877 }
1878 }
1879
1880 assert(acc>=0);
1881
1882 return acc;
1883}
1884
1885static int sse_mb(MpegEncContext *s){
1886 int w= 16;
1887 int h= 16;
1888
1889 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
1890 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
1891
1892 if(w==16 && h==16)
1893 if(s->avctx->mb_cmp == FF_CMP_NSSE){
1894 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)
1895 +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)
1896 +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);
1897 }else{
1898 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)
1899 +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)
1900 +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);
1901 }
1902 else
1903 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)
1904 +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)
1905 +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);
1906}
1907
1908static int pre_estimate_motion_thread(AVCodecContext *c, void *arg){
1909 MpegEncContext *s= arg;
1910
1911
1912 s->me.pre_pass=1;
1913 s->me.dia_size= s->avctx->pre_dia_size;
1914 s->first_slice_line=1;
1915 for(s->mb_y= s->end_mb_y-1; s->mb_y >= s->start_mb_y; s->mb_y--) {
1916 for(s->mb_x=s->mb_width-1; s->mb_x >=0 ;s->mb_x--) {
1917 ff_pre_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1918 }
1919 s->first_slice_line=0;
1920 }
1921
1922 s->me.pre_pass=0;
1923
1924 return 0;
1925}
1926
1927static int estimate_motion_thread(AVCodecContext *c, void *arg){
1928 MpegEncContext *s= arg;
1929
1930 ff_check_alignment();
1931
1932 s->me.dia_size= s->avctx->dia_size;
1933 s->first_slice_line=1;
1934 for(s->mb_y= s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
1935 s->mb_x=0; //for block init below
1936 ff_init_block_index(s);
1937 for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {
1938 s->block_index[0]+=2;
1939 s->block_index[1]+=2;
1940 s->block_index[2]+=2;
1941 s->block_index[3]+=2;
1942
1943 /* compute motion vector & mb_type and store in context */
1944 if(s->pict_type==B_TYPE)
1945 ff_estimate_b_frame_motion(s, s->mb_x, s->mb_y);
1946 else
1947 ff_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1948 }
1949 s->first_slice_line=0;
1950 }
1951 return 0;
1952}
1953
1954static int mb_var_thread(AVCodecContext *c, void *arg){
1955 MpegEncContext *s= arg;
1956 int mb_x, mb_y;
1957
1958 ff_check_alignment();
1959
1960 for(mb_y=s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
1961 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
1962 int xx = mb_x * 16;
1963 int yy = mb_y * 16;
1964 uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
1965 int varc;
1966 int sum = s->dsp.pix_sum(pix, s->linesize);
1967
1968 varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
1969
1970 s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
1971 s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
1972 s->me.mb_var_sum_temp += varc;
1973 }
1974 }
1975 return 0;
1976}
1977
1978static void write_slice_end(MpegEncContext *s){
1979 if(s->codec_id==CODEC_ID_MPEG4){
1980 if(s->partitioned_frame){
1981 ff_mpeg4_merge_partitions(s);
1982 }
1983
1984 ff_mpeg4_stuffing(&s->pb);
1985 }else if(ENABLE_MJPEG_ENCODER && s->out_format == FMT_MJPEG){
1986 ff_mjpeg_encode_stuffing(&s->pb);
1987 }
1988
1989 align_put_bits(&s->pb);
1990 flush_put_bits(&s->pb);
1991
1992 if((s->flags&CODEC_FLAG_PASS1) && !s->partitioned_frame)
1993 s->misc_bits+= get_bits_diff(s);
1994}
1995
1996static int encode_thread(AVCodecContext *c, void *arg){
1997 MpegEncContext *s= arg;
1998 int mb_x, mb_y, pdif = 0;
1999 int i, j;
2000 MpegEncContext best_s, backup_s;
2001 uint8_t bit_buf[2][MAX_MB_BYTES];
2002 uint8_t bit_buf2[2][MAX_MB_BYTES];
2003 uint8_t bit_buf_tex[2][MAX_MB_BYTES];
2004 PutBitContext pb[2], pb2[2], tex_pb[2];
2005//printf("%d->%d\n", s->resync_mb_y, s->end_mb_y);
2006
2007 ff_check_alignment();
2008
2009 for(i=0; i<2; i++){
2010 init_put_bits(&pb [i], bit_buf [i], MAX_MB_BYTES);
2011 init_put_bits(&pb2 [i], bit_buf2 [i], MAX_MB_BYTES);
2012 init_put_bits(&tex_pb[i], bit_buf_tex[i], MAX_MB_BYTES);
2013 }
2014
2015 s->last_bits= put_bits_count(&s->pb);
2016 s->mv_bits=0;
2017 s->misc_bits=0;
2018 s->i_tex_bits=0;
2019 s->p_tex_bits=0;
2020 s->i_count=0;
2021 s->f_count=0;
2022 s->b_count=0;
2023 s->skip_count=0;
2024
2025 for(i=0; i<3; i++){
2026 /* init last dc values */
2027 /* note: quant matrix value (8) is implied here */
2028 s->last_dc[i] = 128 << s->intra_dc_precision;
2029
2030 s->current_picture.error[i] = 0;
2031 }
2032 s->mb_skip_run = 0;
2033 memset(s->last_mv, 0, sizeof(s->last_mv));
2034
2035 s->last_mv_dir = 0;
2036
2037 switch(s->codec_id){
2038 case CODEC_ID_H263:
2039 case CODEC_ID_H263P:
2040 case CODEC_ID_FLV1:
2041 s->gob_index = ff_h263_get_gob_height(s);
2042 break;
2043 case CODEC_ID_MPEG4:
2044 if(s->partitioned_frame)
2045 ff_mpeg4_init_partitions(s);
2046 break;
2047 }
2048
2049 s->resync_mb_x=0;
2050 s->resync_mb_y=0;
2051 s->first_slice_line = 1;
2052 s->ptr_lastgob = s->pb.buf;
2053 for(mb_y= s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2054// printf("row %d at %X\n", s->mb_y, (int)s);
2055 s->mb_x=0;
2056 s->mb_y= mb_y;
2057
2058 ff_set_qscale(s, s->qscale);
2059 ff_init_block_index(s);
2060
2061 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2062 int xy= mb_y*s->mb_stride + mb_x; // removed const, H261 needs to adjust this
2063 int mb_type= s->mb_type[xy];
2064// int d;
2065 int dmin= INT_MAX;
2066 int dir;
2067
2068 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < MAX_MB_BYTES){
2069 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2070 return -1;
2071 }
2072 if(s->data_partitioning){
2073 if( s->pb2 .buf_end - s->pb2 .buf - (put_bits_count(&s-> pb2)>>3) < MAX_MB_BYTES
2074 || s->tex_pb.buf_end - s->tex_pb.buf - (put_bits_count(&s->tex_pb )>>3) < MAX_MB_BYTES){
2075 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2076 return -1;
2077 }
2078 }
2079
2080 s->mb_x = mb_x;
2081 s->mb_y = mb_y; // moved into loop, can get changed by H.261
2082 ff_update_block_index(s);
2083
2084 if(ENABLE_H261_ENCODER && s->codec_id == CODEC_ID_H261){
2085 ff_h261_reorder_mb_index(s);
2086 xy= s->mb_y*s->mb_stride + s->mb_x;
2087 mb_type= s->mb_type[xy];
2088 }
2089
2090 /* write gob / video packet header */
2091 if(s->rtp_mode){
2092 int current_packet_size, is_gob_start;
2093
2094 current_packet_size= ((put_bits_count(&s->pb)+7)>>3) - (s->ptr_lastgob - s->pb.buf);
2095
2096 is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0;
2097
2098 if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1;
2099
2100 switch(s->codec_id){
2101 case CODEC_ID_H263:
2102 case CODEC_ID_H263P:
2103 if(!s->h263_slice_structured)
2104 if(s->mb_x || s->mb_y%s->gob_index) is_gob_start=0;
2105 break;
2106 case CODEC_ID_MPEG2VIDEO:
2107 if(s->mb_x==0 && s->mb_y!=0) is_gob_start=1;
2108 case CODEC_ID_MPEG1VIDEO:
2109 if(s->mb_skip_run) is_gob_start=0;
2110 break;
2111 }
2112
2113 if(is_gob_start){
2114 if(s->start_mb_y != mb_y || mb_x!=0){
2115 write_slice_end(s);
2116
2117 if(s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){
2118 ff_mpeg4_init_partitions(s);
2119 }
2120 }
2121
2122 assert((put_bits_count(&s->pb)&7) == 0);
2123 current_packet_size= pbBufPtr(&s->pb) - s->ptr_lastgob;
2124
2125 if(s->avctx->error_rate && s->resync_mb_x + s->resync_mb_y > 0){
2126 int r= put_bits_count(&s->pb)/8 + s->picture_number + 16 + s->mb_x + s->mb_y;
2127 int d= 100 / s->avctx->error_rate;
2128 if(r % d == 0){
2129 current_packet_size=0;
2130#ifndef ALT_BITSTREAM_WRITER
2131 s->pb.buf_ptr= s->ptr_lastgob;
2132#endif
2133 assert(pbBufPtr(&s->pb) == s->ptr_lastgob);
2134 }
2135 }
2136
2137 if (s->avctx->rtp_callback){
2138 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width + mb_x - s->resync_mb_x;
2139 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, current_packet_size, number_mb);
2140 }
2141
2142 switch(s->codec_id){
2143 case CODEC_ID_MPEG4:
2144 ff_mpeg4_encode_video_packet_header(s);
2145 ff_mpeg4_clean_buffers(s);
2146 break;
2147 case CODEC_ID_MPEG1VIDEO:
2148 case CODEC_ID_MPEG2VIDEO:
2149 ff_mpeg1_encode_slice_header(s);
2150 ff_mpeg1_clean_buffers(s);
2151 break;
2152 case CODEC_ID_H263:
2153 case CODEC_ID_H263P:
2154 h263_encode_gob_header(s, mb_y);
2155 break;
2156 }
2157
2158 if(s->flags&CODEC_FLAG_PASS1){
2159 int bits= put_bits_count(&s->pb);
2160 s->misc_bits+= bits - s->last_bits;
2161 s->last_bits= bits;
2162 }
2163
2164 s->ptr_lastgob += current_packet_size;
2165 s->first_slice_line=1;
2166 s->resync_mb_x=mb_x;
2167 s->resync_mb_y=mb_y;
2168 }
2169 }
2170
2171 if( (s->resync_mb_x == s->mb_x)
2172 && s->resync_mb_y+1 == s->mb_y){
2173 s->first_slice_line=0;
2174 }
2175
2176 s->mb_skipped=0;
2177 s->dquant=0; //only for QP_RD
2178
2179 if(mb_type & (mb_type-1) || (s->flags & CODEC_FLAG_QP_RD)){ // more than 1 MB type possible or CODEC_FLAG_QP_RD
2180 int next_block=0;
2181 int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
2182
2183 copy_context_before_encode(&backup_s, s, -1);
2184 backup_s.pb= s->pb;
2185 best_s.data_partitioning= s->data_partitioning;
2186 best_s.partitioned_frame= s->partitioned_frame;
2187 if(s->data_partitioning){
2188 backup_s.pb2= s->pb2;
2189 backup_s.tex_pb= s->tex_pb;
2190 }
2191
2192 if(mb_type&CANDIDATE_MB_TYPE_INTER){
2193 s->mv_dir = MV_DIR_FORWARD;
2194 s->mv_type = MV_TYPE_16X16;
2195 s->mb_intra= 0;
2196 s->mv[0][0][0] = s->p_mv_table[xy][0];
2197 s->mv[0][0][1] = s->p_mv_table[xy][1];
2198 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER, pb, pb2, tex_pb,
2199 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2200 }
2201 if(mb_type&CANDIDATE_MB_TYPE_INTER_I){
2202 s->mv_dir = MV_DIR_FORWARD;
2203 s->mv_type = MV_TYPE_FIELD;
2204 s->mb_intra= 0;
2205 for(i=0; i<2; i++){
2206 j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2207 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2208 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2209 }
2210 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER_I, pb, pb2, tex_pb,
2211 &dmin, &next_block, 0, 0);
2212 }
2213 if(mb_type&CANDIDATE_MB_TYPE_SKIPPED){
2214 s->mv_dir = MV_DIR_FORWARD;
2215 s->mv_type = MV_TYPE_16X16;
2216 s->mb_intra= 0;
2217 s->mv[0][0][0] = 0;
2218 s->mv[0][0][1] = 0;
2219 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_SKIPPED, pb, pb2, tex_pb,
2220 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2221 }
2222 if(mb_type&CANDIDATE_MB_TYPE_INTER4V){
2223 s->mv_dir = MV_DIR_FORWARD;
2224 s->mv_type = MV_TYPE_8X8;
2225 s->mb_intra= 0;
2226 for(i=0; i<4; i++){
2227 s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2228 s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2229 }
2230 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER4V, pb, pb2, tex_pb,
2231 &dmin, &next_block, 0, 0);
2232 }
2233 if(mb_type&CANDIDATE_MB_TYPE_FORWARD){
2234 s->mv_dir = MV_DIR_FORWARD;
2235 s->mv_type = MV_TYPE_16X16;
2236 s->mb_intra= 0;
2237 s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2238 s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2239 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD, pb, pb2, tex_pb,
2240 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2241 }
2242 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD){
2243 s->mv_dir = MV_DIR_BACKWARD;
2244 s->mv_type = MV_TYPE_16X16;
2245 s->mb_intra= 0;
2246 s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2247 s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2248 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD, pb, pb2, tex_pb,
2249 &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
2250 }
2251 if(mb_type&CANDIDATE_MB_TYPE_BIDIR){
2252 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2253 s->mv_type = MV_TYPE_16X16;
2254 s->mb_intra= 0;
2255 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2256 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2257 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2258 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2259 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb,
2260 &dmin, &next_block, 0, 0);
2261 }
2262 if(mb_type&CANDIDATE_MB_TYPE_FORWARD_I){
2263 s->mv_dir = MV_DIR_FORWARD;
2264 s->mv_type = MV_TYPE_FIELD;
2265 s->mb_intra= 0;
2266 for(i=0; i<2; i++){
2267 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2268 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2269 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2270 }
2271 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD_I, pb, pb2, tex_pb,
2272 &dmin, &next_block, 0, 0);
2273 }
2274 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD_I){
2275 s->mv_dir = MV_DIR_BACKWARD;
2276 s->mv_type = MV_TYPE_FIELD;
2277 s->mb_intra= 0;
2278 for(i=0; i<2; i++){
2279 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2280 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2281 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2282 }
2283 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD_I, pb, pb2, tex_pb,
2284 &dmin, &next_block, 0, 0);
2285 }
2286 if(mb_type&CANDIDATE_MB_TYPE_BIDIR_I){
2287 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2288 s->mv_type = MV_TYPE_FIELD;
2289 s->mb_intra= 0;
2290 for(dir=0; dir<2; dir++){
2291 for(i=0; i<2; i++){
2292 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2293 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2294 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2295 }
2296 }
2297 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR_I, pb, pb2, tex_pb,
2298 &dmin, &next_block, 0, 0);
2299 }
2300 if(mb_type&CANDIDATE_MB_TYPE_INTRA){
2301 s->mv_dir = 0;
2302 s->mv_type = MV_TYPE_16X16;
2303 s->mb_intra= 1;
2304 s->mv[0][0][0] = 0;
2305 s->mv[0][0][1] = 0;
2306 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTRA, pb, pb2, tex_pb,
2307 &dmin, &next_block, 0, 0);
2308 if(s->h263_pred || s->h263_aic){
2309 if(best_s.mb_intra)
2310 s->mbintra_table[mb_x + mb_y*s->mb_stride]=1;
2311 else
2312 ff_clean_intra_table_entries(s); //old mode?
2313 }
2314 }
2315
2316 if((s->flags & CODEC_FLAG_QP_RD) && dmin < INT_MAX){
2317 if(best_s.mv_type==MV_TYPE_16X16){ //FIXME move 4mv after QPRD
2318 const int last_qp= backup_s.qscale;
2319 int qpi, qp, dc[6];
2320 DCTELEM ac[6][16];
2321 const int mvdir= (best_s.mv_dir&MV_DIR_BACKWARD) ? 1 : 0;
2322 static const int dquant_tab[4]={-1,1,-2,2};
2323
2324 assert(backup_s.dquant == 0);
2325
2326 //FIXME intra
2327 s->mv_dir= best_s.mv_dir;
2328 s->mv_type = MV_TYPE_16X16;
2329 s->mb_intra= best_s.mb_intra;
2330 s->mv[0][0][0] = best_s.mv[0][0][0];
2331 s->mv[0][0][1] = best_s.mv[0][0][1];
2332 s->mv[1][0][0] = best_s.mv[1][0][0];
2333 s->mv[1][0][1] = best_s.mv[1][0][1];
2334
2335 qpi = s->pict_type == B_TYPE ? 2 : 0;
2336 for(; qpi<4; qpi++){
2337 int dquant= dquant_tab[qpi];
2338 qp= last_qp + dquant;
2339 if(qp < s->avctx->qmin || qp > s->avctx->qmax)
2340 continue;
2341 backup_s.dquant= dquant;
2342 if(s->mb_intra && s->dc_val[0]){
2343 for(i=0; i<6; i++){
2344 dc[i]= s->dc_val[0][ s->block_index[i] ];
2345 memcpy(ac[i], s->ac_val[0][s->block_index[i]], sizeof(DCTELEM)*16);
2346 }
2347 }
2348
2349 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2350 &dmin, &next_block, s->mv[mvdir][0][0], s->mv[mvdir][0][1]);
2351 if(best_s.qscale != qp){
2352 if(s->mb_intra && s->dc_val[0]){
2353 for(i=0; i<6; i++){
2354 s->dc_val[0][ s->block_index[i] ]= dc[i];
2355 memcpy(s->ac_val[0][s->block_index[i]], ac[i], sizeof(DCTELEM)*16);
2356 }
2357 }
2358 }
2359 }
2360 }
2361 }
2362 if(mb_type&CANDIDATE_MB_TYPE_DIRECT){
2363 int mx= s->b_direct_mv_table[xy][0];
2364 int my= s->b_direct_mv_table[xy][1];
2365
2366 backup_s.dquant = 0;
2367 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2368 s->mb_intra= 0;
2369 ff_mpeg4_set_direct_mv(s, mx, my);
2370 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2371 &dmin, &next_block, mx, my);
2372 }
2373 if(mb_type&CANDIDATE_MB_TYPE_DIRECT0){
2374 backup_s.dquant = 0;
2375 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2376 s->mb_intra= 0;
2377 ff_mpeg4_set_direct_mv(s, 0, 0);
2378 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2379 &dmin, &next_block, 0, 0);
2380 }
2381 if(!best_s.mb_intra && s->flags2&CODEC_FLAG2_SKIP_RD){
2382 int coded=0;
2383 for(i=0; i<6; i++)
2384 coded |= s->block_last_index[i];
2385 if(coded){
2386 int mx,my;
2387 memcpy(s->mv, best_s.mv, sizeof(s->mv));
2388 if(best_s.mv_dir & MV_DIRECT){
2389 mx=my=0; //FIXME find the one we actually used
2390 ff_mpeg4_set_direct_mv(s, mx, my);
2391 }else if(best_s.mv_dir&MV_DIR_BACKWARD){
2392 mx= s->mv[1][0][0];
2393 my= s->mv[1][0][1];
2394 }else{
2395 mx= s->mv[0][0][0];
2396 my= s->mv[0][0][1];
2397 }
2398
2399 s->mv_dir= best_s.mv_dir;
2400 s->mv_type = best_s.mv_type;
2401 s->mb_intra= 0;
2402/* s->mv[0][0][0] = best_s.mv[0][0][0];
2403 s->mv[0][0][1] = best_s.mv[0][0][1];
2404 s->mv[1][0][0] = best_s.mv[1][0][0];
2405 s->mv[1][0][1] = best_s.mv[1][0][1];*/
2406 backup_s.dquant= 0;
2407 s->skipdct=1;
2408 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2409 &dmin, &next_block, mx, my);
2410 s->skipdct=0;
2411 }
2412 }
2413
2414 s->current_picture.qscale_table[xy]= best_s.qscale;
2415
2416 copy_context_after_encode(s, &best_s, -1);
2417
2418 pb_bits_count= put_bits_count(&s->pb);
2419 flush_put_bits(&s->pb);
2420 ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
2421 s->pb= backup_s.pb;
2422
2423 if(s->data_partitioning){
2424 pb2_bits_count= put_bits_count(&s->pb2);
2425 flush_put_bits(&s->pb2);
2426 ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
2427 s->pb2= backup_s.pb2;
2428
2429 tex_pb_bits_count= put_bits_count(&s->tex_pb);
2430 flush_put_bits(&s->tex_pb);
2431 ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
2432 s->tex_pb= backup_s.tex_pb;
2433 }
2434 s->last_bits= put_bits_count(&s->pb);
2435
2436 if (s->out_format == FMT_H263 && s->pict_type!=B_TYPE)
2437 ff_h263_update_motion_val(s);
2438
2439 if(next_block==0){ //FIXME 16 vs linesize16
2440 s->dsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad , s->linesize ,16);
2441 s->dsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize , s->uvlinesize, 8);
2442 s->dsp.put_pixels_tab[1][0](s->dest[2], s->rd_scratchpad + 16*s->linesize + 8, s->uvlinesize, 8);
2443 }
2444
2445 if(s->avctx->mb_decision == FF_MB_DECISION_BITS)
2446 MPV_decode_mb(s, s->block);
2447 } else {
2448 int motion_x = 0, motion_y = 0;
2449 s->mv_type=MV_TYPE_16X16;
2450 // only one MB-Type possible
2451
2452 switch(mb_type){
2453 case CANDIDATE_MB_TYPE_INTRA:
2454 s->mv_dir = 0;
2455 s->mb_intra= 1;
2456 motion_x= s->mv[0][0][0] = 0;
2457 motion_y= s->mv[0][0][1] = 0;
2458 break;
2459 case CANDIDATE_MB_TYPE_INTER:
2460 s->mv_dir = MV_DIR_FORWARD;
2461 s->mb_intra= 0;
2462 motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
2463 motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
2464 break;
2465 case CANDIDATE_MB_TYPE_INTER_I:
2466 s->mv_dir = MV_DIR_FORWARD;
2467 s->mv_type = MV_TYPE_FIELD;
2468 s->mb_intra= 0;
2469 for(i=0; i<2; i++){
2470 j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2471 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2472 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2473 }
2474 break;
2475 case CANDIDATE_MB_TYPE_INTER4V:
2476 s->mv_dir = MV_DIR_FORWARD;
2477 s->mv_type = MV_TYPE_8X8;
2478 s->mb_intra= 0;
2479 for(i=0; i<4; i++){
2480 s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2481 s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2482 }
2483 break;
2484 case CANDIDATE_MB_TYPE_DIRECT:
2485 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2486 s->mb_intra= 0;
2487 motion_x=s->b_direct_mv_table[xy][0];
2488 motion_y=s->b_direct_mv_table[xy][1];
2489 ff_mpeg4_set_direct_mv(s, motion_x, motion_y);
2490 break;
2491 case CANDIDATE_MB_TYPE_DIRECT0:
2492 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2493 s->mb_intra= 0;
2494 ff_mpeg4_set_direct_mv(s, 0, 0);
2495 break;
2496 case CANDIDATE_MB_TYPE_BIDIR:
2497 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2498 s->mb_intra= 0;
2499 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2500 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2501 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2502 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2503 break;
2504 case CANDIDATE_MB_TYPE_BACKWARD:
2505 s->mv_dir = MV_DIR_BACKWARD;
2506 s->mb_intra= 0;
2507 motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2508 motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2509 break;
2510 case CANDIDATE_MB_TYPE_FORWARD:
2511 s->mv_dir = MV_DIR_FORWARD;
2512 s->mb_intra= 0;
2513 motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2514 motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2515// printf(" %d %d ", motion_x, motion_y);
2516 break;
2517 case CANDIDATE_MB_TYPE_FORWARD_I:
2518 s->mv_dir = MV_DIR_FORWARD;
2519 s->mv_type = MV_TYPE_FIELD;
2520 s->mb_intra= 0;
2521 for(i=0; i<2; i++){
2522 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2523 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2524 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2525 }
2526 break;
2527 case CANDIDATE_MB_TYPE_BACKWARD_I:
2528 s->mv_dir = MV_DIR_BACKWARD;
2529 s->mv_type = MV_TYPE_FIELD;
2530 s->mb_intra= 0;
2531 for(i=0; i<2; i++){
2532 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2533 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2534 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2535 }
2536 break;
2537 case CANDIDATE_MB_TYPE_BIDIR_I:
2538 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2539 s->mv_type = MV_TYPE_FIELD;
2540 s->mb_intra= 0;
2541 for(dir=0; dir<2; dir++){
2542 for(i=0; i<2; i++){
2543 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2544 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2545 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2546 }
2547 }
2548 break;
2549 default:
2550 av_log(s->avctx, AV_LOG_ERROR, "illegal MB type\n");
2551 }
2552
2553 encode_mb(s, motion_x, motion_y);
2554
2555 // RAL: Update last macroblock type
2556 s->last_mv_dir = s->mv_dir;
2557
2558 if (s->out_format == FMT_H263 && s->pict_type!=B_TYPE)
2559 ff_h263_update_motion_val(s);
2560
2561 MPV_decode_mb(s, s->block);
2562 }
2563
2564 /* clean the MV table in IPS frames for direct mode in B frames */
2565 if(s->mb_intra /* && I,P,S_TYPE */){
2566 s->p_mv_table[xy][0]=0;
2567 s->p_mv_table[xy][1]=0;
2568 }
2569
2570 if(s->flags&CODEC_FLAG_PSNR){
2571 int w= 16;
2572 int h= 16;
2573
2574 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
2575 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
2576
2577 s->current_picture.error[0] += sse(
2578 s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16,
2579 s->dest[0], w, h, s->linesize);
2580 s->current_picture.error[1] += sse(
2581 s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,
2582 s->dest[1], w>>1, h>>1, s->uvlinesize);
2583 s->current_picture.error[2] += sse(
2584 s, s->new_picture .data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,
2585 s->dest[2], w>>1, h>>1, s->uvlinesize);
2586 }
2587 if(s->loop_filter){
2588 if(s->out_format == FMT_H263)
2589 ff_h263_loop_filter(s);
2590 }
2591//printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, put_bits_count(&s->pb));
2592 }
2593 }
2594
2595 //not beautiful here but we must write it before flushing so it has to be here
2596 if (ENABLE_MSMPEG4_ENCODER && s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == I_TYPE)
2597 msmpeg4_encode_ext_header(s);
2598
2599 write_slice_end(s);
2600
2601 /* Send the last GOB if RTP */
2602 if (s->avctx->rtp_callback) {
2603 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width - s->resync_mb_x;
2604 pdif = pbBufPtr(&s->pb) - s->ptr_lastgob;
2605 /* Call the RTP callback to send the last GOB */
2606 emms_c();
2607 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, pdif, number_mb);
2608 }
2609
2610 return 0;
2611}
2612
2613#define MERGE(field) dst->field += src->field; src->field=0
2614static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src){
2615 MERGE(me.scene_change_score);
2616 MERGE(me.mc_mb_var_sum_temp);
2617 MERGE(me.mb_var_sum_temp);
2618}
2619
2620static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src){
2621 int i;
2622
2623 MERGE(dct_count[0]); //note, the other dct vars are not part of the context
2624 MERGE(dct_count[1]);
2625 MERGE(mv_bits);
2626 MERGE(i_tex_bits);
2627 MERGE(p_tex_bits);
2628 MERGE(i_count);
2629 MERGE(f_count);
2630 MERGE(b_count);
2631 MERGE(skip_count);
2632 MERGE(misc_bits);
2633 MERGE(error_count);
2634 MERGE(padding_bug_score);
2635 MERGE(current_picture.error[0]);
2636 MERGE(current_picture.error[1]);
2637 MERGE(current_picture.error[2]);
2638
2639 if(dst->avctx->noise_reduction){
2640 for(i=0; i<64; i++){
2641 MERGE(dct_error_sum[0][i]);
2642 MERGE(dct_error_sum[1][i]);
2643 }
2644 }
2645
2646 assert(put_bits_count(&src->pb) % 8 ==0);
2647 assert(put_bits_count(&dst->pb) % 8 ==0);
2648 ff_copy_bits(&dst->pb, src->pb.buf, put_bits_count(&src->pb));
2649 flush_put_bits(&dst->pb);
2650}
2651
2652static int estimate_qp(MpegEncContext *s, int dry_run){
2653 if (s->next_lambda){
2654 s->current_picture_ptr->quality=
2655 s->current_picture.quality = s->next_lambda;
2656 if(!dry_run) s->next_lambda= 0;
2657 } else if (!s->fixed_qscale) {
2658 s->current_picture_ptr->quality=
2659 s->current_picture.quality = ff_rate_estimate_qscale(s, dry_run);
2660 if (s->current_picture.quality < 0)
2661 return -1;
2662 }
2663
2664 if(s->adaptive_quant){
2665 switch(s->codec_id){
2666 case CODEC_ID_MPEG4:
2667 ff_clean_mpeg4_qscales(s);
2668 break;
2669 case CODEC_ID_H263:
2670 case CODEC_ID_H263P:
2671 case CODEC_ID_FLV1:
2672 ff_clean_h263_qscales(s);
2673 break;
2674 }
2675
2676 s->lambda= s->lambda_table[0];
2677 //FIXME broken
2678 }else
2679 s->lambda= s->current_picture.quality;
2680//printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality);
2681 update_qscale(s);
2682 return 0;
2683}
2684
2685static int encode_picture(MpegEncContext *s, int picture_number)
2686{
2687 int i;
2688 int bits;
2689
2690 s->picture_number = picture_number;
2691
2692 /* Reset the average MB variance */
2693 s->me.mb_var_sum_temp =
2694 s->me.mc_mb_var_sum_temp = 0;
2695
2696 /* we need to initialize some time vars before we can encode b-frames */
2697 // RAL: Condition added for MPEG1VIDEO
2698 if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->h263_msmpeg4))
2699 ff_set_mpeg4_time(s, s->picture_number); //FIXME rename and use has_b_frames or similar
2700
2701 s->me.scene_change_score=0;
2702
2703// s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME ratedistoration
2704
2705 if(s->pict_type==I_TYPE){
2706 if(s->msmpeg4_version >= 3) s->no_rounding=1;
2707 else s->no_rounding=0;
2708 }else if(s->pict_type!=B_TYPE){
2709 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
2710 s->no_rounding ^= 1;
2711 }
2712
2713 if(s->flags & CODEC_FLAG_PASS2){
2714 if (estimate_qp(s,1) < 0)
2715 return -1;
2716 ff_get_2pass_fcode(s);
2717 }else if(!(s->flags & CODEC_FLAG_QSCALE)){
2718 if(s->pict_type==B_TYPE)
2719 s->lambda= s->last_lambda_for[s->pict_type];
2720 else
2721 s->lambda= s->last_lambda_for[s->last_non_b_pict_type];
2722 update_qscale(s);
2723 }
2724
2725 s->mb_intra=0; //for the rate distortion & bit compare functions
2726 for(i=1; i<s->avctx->thread_count; i++){
2727 ff_update_duplicate_context(s->thread_context[i], s);
2728 }
2729
2730 ff_init_me(s);
2731
2732 /* Estimate motion for every MB */
2733 if(s->pict_type != I_TYPE){
2734 s->lambda = (s->lambda * s->avctx->me_penalty_compensation + 128)>>8;
2735 s->lambda2= (s->lambda2* (int64_t)s->avctx->me_penalty_compensation + 128)>>8;
2736 if(s->pict_type != B_TYPE && s->avctx->me_threshold==0){
2737 if((s->avctx->pre_me && s->last_non_b_pict_type==I_TYPE) || s->avctx->pre_me==2){
2738 s->avctx->execute(s->avctx, pre_estimate_motion_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
2739 }
2740 }
2741
2742 s->avctx->execute(s->avctx, estimate_motion_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
2743 }else /* if(s->pict_type == I_TYPE) */{
2744 /* I-Frame */
2745 for(i=0; i<s->mb_stride*s->mb_height; i++)
2746 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2747
2748 if(!s->fixed_qscale){
2749 /* finding spatial complexity for I-frame rate control */
2750 s->avctx->execute(s->avctx, mb_var_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
2751 }
2752 }
2753 for(i=1; i<s->avctx->thread_count; i++){
2754 merge_context_after_me(s, s->thread_context[i]);
2755 }
2756 s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum= s->me.mc_mb_var_sum_temp;
2757 s->current_picture. mb_var_sum= s->current_picture_ptr-> mb_var_sum= s->me. mb_var_sum_temp;
2758 emms_c();
2759
2760 if(s->me.scene_change_score > s->avctx->scenechange_threshold && s->pict_type == P_TYPE){
2761 s->pict_type= I_TYPE;
2762 for(i=0; i<s->mb_stride*s->mb_height; i++)
2763 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2764//printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum);
2765 }
2766
2767 if(!s->umvplus){
2768 if(s->pict_type==P_TYPE || s->pict_type==S_TYPE) {
2769 s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER);
2770
2771 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2772 int a,b;
2773 a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select
2774 b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I);
2775 s->f_code= FFMAX(s->f_code, FFMAX(a,b));
2776 }
2777
2778 ff_fix_long_p_mvs(s);
2779 ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0);
2780 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2781 int j;
2782 for(i=0; i<2; i++){
2783 for(j=0; j<2; j++)
2784 ff_fix_long_mvs(s, s->p_field_select_table[i], j,
2785 s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0);
2786 }
2787 }
2788 }
2789
2790 if(s->pict_type==B_TYPE){
2791 int a, b;
2792
2793 a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD);
2794 b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2795 s->f_code = FFMAX(a, b);
2796
2797 a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD);
2798 b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2799 s->b_code = FFMAX(a, b);
2800
2801 ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1);
2802 ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1);
2803 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2804 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2805 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2806 int dir, j;
2807 for(dir=0; dir<2; dir++){
2808 for(i=0; i<2; i++){
2809 for(j=0; j<2; j++){
2810 int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I)
2811 : (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I);
2812 ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j,
2813 s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1);
2814 }
2815 }
2816 }
2817 }
2818 }
2819 }
2820
2821 if (estimate_qp(s, 0) < 0)
2822 return -1;
2823
2824 if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==I_TYPE && !(s->flags & CODEC_FLAG_QSCALE))
2825 s->qscale= 3; //reduce clipping problems
2826
2827 if (s->out_format == FMT_MJPEG) {
2828 /* for mjpeg, we do include qscale in the matrix */
2829 s->intra_matrix[0] = ff_mpeg1_default_intra_matrix[0];
2830 for(i=1;i<64;i++){
2831 int j= s->dsp.idct_permutation[i];
2832
2833 s->intra_matrix[j] = av_clip_uint8((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
2834 }
2835 convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
2836 s->intra_matrix, s->intra_quant_bias, 8, 8, 1);
2837 s->qscale= 8;
2838 }
2839
2840 //FIXME var duplication
2841 s->current_picture_ptr->key_frame=
2842 s->current_picture.key_frame= s->pict_type == I_TYPE; //FIXME pic_ptr
2843 s->current_picture_ptr->pict_type=
2844 s->current_picture.pict_type= s->pict_type;
2845
2846 if(s->current_picture.key_frame)
2847 s->picture_in_gop_number=0;
2848
2849 s->last_bits= put_bits_count(&s->pb);
2850 switch(s->out_format) {
2851 case FMT_MJPEG:
2852 if (ENABLE_MJPEG_ENCODER)
2853 ff_mjpeg_encode_picture_header(s);
2854 break;
2855 case FMT_H261:
2856 if (ENABLE_H261_ENCODER)
2857 ff_h261_encode_picture_header(s, picture_number);
2858 break;
2859 case FMT_H263:
2860 if (ENABLE_WMV2_ENCODER && s->codec_id == CODEC_ID_WMV2)
2861 ff_wmv2_encode_picture_header(s, picture_number);
2862 else if (ENABLE_MSMPEG4_ENCODER && s->h263_msmpeg4)
2863 msmpeg4_encode_picture_header(s, picture_number);
2864 else if (s->h263_pred)
2865 mpeg4_encode_picture_header(s, picture_number);
2866 else if (ENABLE_RV10_ENCODER && s->codec_id == CODEC_ID_RV10)
2867 rv10_encode_picture_header(s, picture_number);
2868 else if (ENABLE_RV20_ENCODER && s->codec_id == CODEC_ID_RV20)
2869 rv20_encode_picture_header(s, picture_number);
2870 else if (s->codec_id == CODEC_ID_FLV1)
2871 ff_flv_encode_picture_header(s, picture_number);
2872 else
2873 h263_encode_picture_header(s, picture_number);
2874 break;
2875 case FMT_MPEG1:
2876 mpeg1_encode_picture_header(s, picture_number);
2877 break;
2878 case FMT_H264:
2879 break;
2880 default:
2881 assert(0);
2882 }
2883 bits= put_bits_count(&s->pb);
2884 s->header_bits= bits - s->last_bits;
2885
2886 for(i=1; i<s->avctx->thread_count; i++){
2887 update_duplicate_context_after_me(s->thread_context[i], s);
2888 }
2889 s->avctx->execute(s->avctx, encode_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
2890 for(i=1; i<s->avctx->thread_count; i++){
2891 merge_context_after_encode(s, s->thread_context[i]);
2892 }
2893 emms_c();
2894 return 0;
2895}
2896
2897void denoise_dct_c(MpegEncContext *s, DCTELEM *block){
2898 const int intra= s->mb_intra;
2899 int i;
2900
2901 s->dct_count[intra]++;
2902
2903 for(i=0; i<64; i++){
2904 int level= block[i];
2905
2906 if(level){
2907 if(level>0){
2908 s->dct_error_sum[intra][i] += level;
2909 level -= s->dct_offset[intra][i];
2910 if(level<0) level=0;
2911 }else{
2912 s->dct_error_sum[intra][i] -= level;
2913 level += s->dct_offset[intra][i];
2914 if(level>0) level=0;
2915 }
2916 block[i]= level;
2917 }
2918 }
2919}
2920
2921int dct_quantize_trellis_c(MpegEncContext *s,
2922 DCTELEM *block, int n,
2923 int qscale, int *overflow){
2924 const int *qmat;
2925 const uint8_t *scantable= s->intra_scantable.scantable;
2926 const uint8_t *perm_scantable= s->intra_scantable.permutated;
2927 int max=0;
2928 unsigned int threshold1, threshold2;
2929 int bias=0;
2930 int run_tab[65];
2931 int level_tab[65];
2932 int score_tab[65];
2933 int survivor[65];
2934 int survivor_count;
2935 int last_run=0;
2936 int last_level=0;
2937 int last_score= 0;
2938 int last_i;
2939 int coeff[2][64];
2940 int coeff_count[64];
2941 int qmul, qadd, start_i, last_non_zero, i, dc;
2942 const int esc_length= s->ac_esc_length;
2943 uint8_t * length;
2944 uint8_t * last_length;
2945 const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6);
2946
2947 s->dsp.fdct (block);
2948
2949 if(s->dct_error_sum)
2950 s->denoise_dct(s, block);
2951 qmul= qscale*16;
2952 qadd= ((qscale-1)|1)*8;
2953
2954 if (s->mb_intra) {
2955 int q;
2956 if (!s->h263_aic) {
2957 if (n < 4)
2958 q = s->y_dc_scale;
2959 else
2960 q = s->c_dc_scale;
2961 q = q << 3;
2962 } else{
2963 /* For AIC we skip quant/dequant of INTRADC */
2964 q = 1 << 3;
2965 qadd=0;
2966 }
2967
2968 /* note: block[0] is assumed to be positive */
2969 block[0] = (block[0] + (q >> 1)) / q;
2970 start_i = 1;
2971 last_non_zero = 0;
2972 qmat = s->q_intra_matrix[qscale];
2973 if(s->mpeg_quant || s->out_format == FMT_MPEG1)
2974 bias= 1<<(QMAT_SHIFT-1);
2975 length = s->intra_ac_vlc_length;
2976 last_length= s->intra_ac_vlc_last_length;
2977 } else {
2978 start_i = 0;
2979 last_non_zero = -1;
2980 qmat = s->q_inter_matrix[qscale];
2981 length = s->inter_ac_vlc_length;
2982 last_length= s->inter_ac_vlc_last_length;
2983 }
2984 last_i= start_i;
2985
2986 threshold1= (1<<QMAT_SHIFT) - bias - 1;
2987 threshold2= (threshold1<<1);
2988
2989 for(i=63; i>=start_i; i--) {
2990 const int j = scantable[i];
2991 int level = block[j] * qmat[j];
2992
2993 if(((unsigned)(level+threshold1))>threshold2){
2994 last_non_zero = i;
2995 break;
2996 }
2997 }
2998
2999 for(i=start_i; i<=last_non_zero; i++) {
3000 const int j = scantable[i];
3001 int level = block[j] * qmat[j];
3002
3003// if( bias+level >= (1<<(QMAT_SHIFT - 3))
3004// || bias-level >= (1<<(QMAT_SHIFT - 3))){
3005 if(((unsigned)(level+threshold1))>threshold2){
3006 if(level>0){
3007 level= (bias + level)>>QMAT_SHIFT;
3008 coeff[0][i]= level;
3009 coeff[1][i]= level-1;
3010// coeff[2][k]= level-2;
3011 }else{
3012 level= (bias - level)>>QMAT_SHIFT;
3013 coeff[0][i]= -level;
3014 coeff[1][i]= -level+1;
3015// coeff[2][k]= -level+2;
3016 }
3017 coeff_count[i]= FFMIN(level, 2);
3018 assert(coeff_count[i]);
3019 max |=level;
3020 }else{
3021 coeff[0][i]= (level>>31)|1;
3022 coeff_count[i]= 1;
3023 }
3024 }
3025
3026 *overflow= s->max_qcoeff < max; //overflow might have happened
3027
3028 if(last_non_zero < start_i){
3029 memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3030 return last_non_zero;
3031 }
3032
3033 score_tab[start_i]= 0;
3034 survivor[0]= start_i;
3035 survivor_count= 1;
3036
3037 for(i=start_i; i<=last_non_zero; i++){
3038 int level_index, j;
3039 const int dct_coeff= FFABS(block[ scantable[i] ]);
3040 const int zero_distoration= dct_coeff*dct_coeff;
3041 int best_score=256*256*256*120;
3042 for(level_index=0; level_index < coeff_count[i]; level_index++){
3043 int distoration;
3044 int level= coeff[level_index][i];
3045 const int alevel= FFABS(level);
3046 int unquant_coeff;
3047
3048 assert(level);
3049
3050 if(s->out_format == FMT_H263){
3051 unquant_coeff= alevel*qmul + qadd;
3052 }else{ //MPEG1
3053 j= s->dsp.idct_permutation[ scantable[i] ]; //FIXME optimize
3054 if(s->mb_intra){
3055 unquant_coeff = (int)( alevel * qscale * s->intra_matrix[j]) >> 3;
3056 unquant_coeff = (unquant_coeff - 1) | 1;
3057 }else{
3058 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[j])) >> 4;
3059 unquant_coeff = (unquant_coeff - 1) | 1;
3060 }
3061 unquant_coeff<<= 3;
3062 }
3063
3064 distoration= (unquant_coeff - dct_coeff) * (unquant_coeff - dct_coeff) - zero_distoration;
3065 level+=64;
3066 if((level&(~127)) == 0){
3067 for(j=survivor_count-1; j>=0; j--){
3068 int run= i - survivor[j];
3069 int score= distoration + length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3070 score += score_tab[i-run];
3071
3072 if(score < best_score){
3073 best_score= score;
3074 run_tab[i+1]= run;
3075 level_tab[i+1]= level-64;
3076 }
3077 }
3078
3079 if(s->out_format == FMT_H263){
3080 for(j=survivor_count-1; j>=0; j--){
3081 int run= i - survivor[j];
3082 int score= distoration + last_length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3083 score += score_tab[i-run];
3084 if(score < last_score){
3085 last_score= score;
3086 last_run= run;
3087 last_level= level-64;
3088 last_i= i+1;
3089 }
3090 }
3091 }
3092 }else{
3093 distoration += esc_length*lambda;
3094 for(j=survivor_count-1; j>=0; j--){
3095 int run= i - survivor[j];
3096 int score= distoration + score_tab[i-run];
3097
3098 if(score < best_score){
3099 best_score= score;
3100 run_tab[i+1]= run;
3101 level_tab[i+1]= level-64;
3102 }
3103 }
3104
3105 if(s->out_format == FMT_H263){
3106 for(j=survivor_count-1; j>=0; j--){
3107 int run= i - survivor[j];
3108 int score= distoration + score_tab[i-run];
3109 if(score < last_score){
3110 last_score= score;
3111 last_run= run;
3112 last_level= level-64;
3113 last_i= i+1;
3114 }
3115 }
3116 }
3117 }
3118 }
3119
3120 score_tab[i+1]= best_score;
3121
3122 //Note: there is a vlc code in mpeg4 which is 1 bit shorter then another one with a shorter run and the same level
3123 if(last_non_zero <= 27){
3124 for(; survivor_count; survivor_count--){
3125 if(score_tab[ survivor[survivor_count-1] ] <= best_score)
3126 break;
3127 }
3128 }else{
3129 for(; survivor_count; survivor_count--){
3130 if(score_tab[ survivor[survivor_count-1] ] <= best_score + lambda)
3131 break;
3132 }
3133 }
3134
3135 survivor[ survivor_count++ ]= i+1;
3136 }
3137
3138 if(s->out_format != FMT_H263){
3139 last_score= 256*256*256*120;
3140 for(i= survivor[0]; i<=last_non_zero + 1; i++){
3141 int score= score_tab[i];
3142 if(i) score += lambda*2; //FIXME exacter?
3143
3144 if(score < last_score){
3145 last_score= score;
3146 last_i= i;
3147 last_level= level_tab[i];
3148 last_run= run_tab[i];
3149 }
3150 }
3151 }
3152
3153 s->coded_score[n] = last_score;
3154
3155 dc= FFABS(block[0]);
3156 last_non_zero= last_i - 1;
3157 memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3158
3159 if(last_non_zero < start_i)
3160 return last_non_zero;
3161
3162 if(last_non_zero == 0 && start_i == 0){
3163 int best_level= 0;
3164 int best_score= dc * dc;
3165
3166 for(i=0; i<coeff_count[0]; i++){
3167 int level= coeff[i][0];
3168 int alevel= FFABS(level);
3169 int unquant_coeff, score, distortion;
3170
3171 if(s->out_format == FMT_H263){
3172 unquant_coeff= (alevel*qmul + qadd)>>3;
3173 }else{ //MPEG1
3174 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[0])) >> 4;
3175 unquant_coeff = (unquant_coeff - 1) | 1;
3176 }
3177 unquant_coeff = (unquant_coeff + 4) >> 3;
3178 unquant_coeff<<= 3 + 3;
3179
3180 distortion= (unquant_coeff - dc) * (unquant_coeff - dc);
3181 level+=64;
3182 if((level&(~127)) == 0) score= distortion + last_length[UNI_AC_ENC_INDEX(0, level)]*lambda;
3183 else score= distortion + esc_length*lambda;
3184
3185 if(score < best_score){
3186 best_score= score;
3187 best_level= level - 64;
3188 }
3189 }
3190 block[0]= best_level;
3191 s->coded_score[n] = best_score - dc*dc;
3192 if(best_level == 0) return -1;
3193 else return last_non_zero;
3194 }
3195
3196 i= last_i;
3197 assert(last_level);
3198
3199 block[ perm_scantable[last_non_zero] ]= last_level;
3200 i -= last_run + 1;
3201
3202 for(; i>start_i; i -= run_tab[i] + 1){
3203 block[ perm_scantable[i-1] ]= level_tab[i];
3204 }
3205
3206 return last_non_zero;
3207}
3208
3209//#define REFINE_STATS 1
3210static int16_t basis[64][64];
3211
3212static void build_basis(uint8_t *perm){
3213 int i, j, x, y;
3214 emms_c();
3215 for(i=0; i<8; i++){
3216 for(j=0; j<8; j++){
3217 for(y=0; y<8; y++){
3218 for(x=0; x<8; x++){
3219 double s= 0.25*(1<<BASIS_SHIFT);
3220 int index= 8*i + j;
3221 int perm_index= perm[index];
3222 if(i==0) s*= sqrt(0.5);
3223 if(j==0) s*= sqrt(0.5);
3224 basis[perm_index][8*x + y]= lrintf(s * cos((M_PI/8.0)*i*(x+0.5)) * cos((M_PI/8.0)*j*(y+0.5)));
3225 }
3226 }
3227 }
3228 }
3229}
3230
3231static int dct_quantize_refine(MpegEncContext *s, //FIXME breaks denoise?
3232 DCTELEM *block, int16_t *weight, DCTELEM *orig,
3233 int n, int qscale){
3234 int16_t rem[64];
3235 DECLARE_ALIGNED_16(DCTELEM, d1[64]);
3236 const int *qmat;
3237 const uint8_t *scantable= s->intra_scantable.scantable;
3238 const uint8_t *perm_scantable= s->intra_scantable.permutated;
3239// unsigned int threshold1, threshold2;
3240// int bias=0;
3241 int run_tab[65];
3242 int prev_run=0;
3243 int prev_level=0;
3244 int qmul, qadd, start_i, last_non_zero, i, dc;
3245 uint8_t * length;
3246 uint8_t * last_length;
3247 int lambda;
3248 int rle_index, run, q = 1, sum; //q is only used when s->mb_intra is true
3249#ifdef REFINE_STATS
3250static int count=0;
3251static int after_last=0;
3252static int to_zero=0;
3253static int from_zero=0;
3254static int raise=0;
3255static int lower=0;
3256static int messed_sign=0;
3257#endif
3258
3259 if(basis[0][0] == 0)
3260 build_basis(s->dsp.idct_permutation);
3261
3262 qmul= qscale*2;
3263 qadd= (qscale-1)|1;
3264 if (s->mb_intra) {
3265 if (!s->h263_aic) {
3266 if (n < 4)
3267 q = s->y_dc_scale;
3268 else
3269 q = s->c_dc_scale;
3270 } else{
3271 /* For AIC we skip quant/dequant of INTRADC */
3272 q = 1;
3273 qadd=0;
3274 }
3275 q <<= RECON_SHIFT-3;
3276 /* note: block[0] is assumed to be positive */
3277 dc= block[0]*q;
3278// block[0] = (block[0] + (q >> 1)) / q;
3279 start_i = 1;
3280 qmat = s->q_intra_matrix[qscale];
3281// if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3282// bias= 1<<(QMAT_SHIFT-1);
3283 length = s->intra_ac_vlc_length;
3284 last_length= s->intra_ac_vlc_last_length;
3285 } else {
3286 dc= 0;
3287 start_i = 0;
3288 qmat = s->q_inter_matrix[qscale];
3289 length = s->inter_ac_vlc_length;
3290 last_length= s->inter_ac_vlc_last_length;
3291 }
3292 last_non_zero = s->block_last_index[n];
3293
3294#ifdef REFINE_STATS
3295{START_TIMER
3296#endif
3297 dc += (1<<(RECON_SHIFT-1));
3298 for(i=0; i<64; i++){
3299 rem[i]= dc - (orig[i]<<RECON_SHIFT); //FIXME use orig dirrectly instead of copying to rem[]
3300 }
3301#ifdef REFINE_STATS
3302STOP_TIMER("memset rem[]")}
3303#endif
3304 sum=0;
3305 for(i=0; i<64; i++){
3306 int one= 36;
3307 int qns=4;
3308 int w;
3309
3310 w= FFABS(weight[i]) + qns*one;
3311 w= 15 + (48*qns*one + w/2)/w; // 16 .. 63
3312
3313 weight[i] = w;
3314// w=weight[i] = (63*qns + (w/2)) / w;
3315
3316 assert(w>0);
3317 assert(w<(1<<6));
3318 sum += w*w;
3319 }
3320 lambda= sum*(uint64_t)s->lambda2 >> (FF_LAMBDA_SHIFT - 6 + 6 + 6 + 6);
3321#ifdef REFINE_STATS
3322{START_TIMER
3323#endif
3324 run=0;
3325 rle_index=0;
3326 for(i=start_i; i<=last_non_zero; i++){
3327 int j= perm_scantable[i];
3328 const int level= block[j];
3329 int coeff;
3330
3331 if(level){
3332 if(level<0) coeff= qmul*level - qadd;
3333 else coeff= qmul*level + qadd;
3334 run_tab[rle_index++]=run;
3335 run=0;
3336
3337 s->dsp.add_8x8basis(rem, basis[j], coeff);
3338 }else{
3339 run++;
3340 }
3341 }
3342#ifdef REFINE_STATS
3343if(last_non_zero>0){
3344STOP_TIMER("init rem[]")
3345}
3346}
3347
3348{START_TIMER
3349#endif
3350 for(;;){
3351 int best_score=s->dsp.try_8x8basis(rem, weight, basis[0], 0);
3352 int best_coeff=0;
3353 int best_change=0;
3354 int run2, best_unquant_change=0, analyze_gradient;
3355#ifdef REFINE_STATS
3356{START_TIMER
3357#endif
3358 analyze_gradient = last_non_zero > 2 || s->avctx->quantizer_noise_shaping >= 3;
3359
3360 if(analyze_gradient){
3361#ifdef REFINE_STATS
3362{START_TIMER
3363#endif
3364 for(i=0; i<64; i++){
3365 int w= weight[i];
3366
3367 d1[i] = (rem[i]*w*w + (1<<(RECON_SHIFT+12-1)))>>(RECON_SHIFT+12);
3368 }
3369#ifdef REFINE_STATS
3370STOP_TIMER("rem*w*w")}
3371{START_TIMER
3372#endif
3373 s->dsp.fdct(d1);
3374#ifdef REFINE_STATS
3375STOP_TIMER("dct")}
3376#endif
3377 }
3378
3379 if(start_i){
3380 const int level= block[0];
3381 int change, old_coeff;
3382
3383 assert(s->mb_intra);
3384
3385 old_coeff= q*level;
3386
3387 for(change=-1; change<=1; change+=2){
3388 int new_level= level + change;
3389 int score, new_coeff;
3390
3391 new_coeff= q*new_level;
3392 if(new_coeff >= 2048 || new_coeff < 0)
3393 continue;
3394
3395 score= s->dsp.try_8x8basis(rem, weight, basis[0], new_coeff - old_coeff);
3396 if(score<best_score){
3397 best_score= score;
3398 best_coeff= 0;
3399 best_change= change;
3400 best_unquant_change= new_coeff - old_coeff;
3401 }
3402 }
3403 }
3404
3405 run=0;
3406 rle_index=0;
3407 run2= run_tab[rle_index++];
3408 prev_level=0;
3409 prev_run=0;
3410
3411 for(i=start_i; i<64; i++){
3412 int j= perm_scantable[i];
3413 const int level= block[j];
3414 int change, old_coeff;
3415
3416 if(s->avctx->quantizer_noise_shaping < 3 && i > last_non_zero + 1)
3417 break;
3418
3419 if(level){
3420 if(level<0) old_coeff= qmul*level - qadd;
3421 else old_coeff= qmul*level + qadd;
3422 run2= run_tab[rle_index++]; //FIXME ! maybe after last
3423 }else{
3424 old_coeff=0;
3425 run2--;
3426 assert(run2>=0 || i >= last_non_zero );
3427 }
3428
3429 for(change=-1; change<=1; change+=2){
3430 int new_level= level + change;
3431 int score, new_coeff, unquant_change;
3432
3433 score=0;
3434 if(s->avctx->quantizer_noise_shaping < 2 && FFABS(new_level) > FFABS(level))
3435 continue;
3436
3437 if(new_level){
3438 if(new_level<0) new_coeff= qmul*new_level - qadd;
3439 else new_coeff= qmul*new_level + qadd;
3440 if(new_coeff >= 2048 || new_coeff <= -2048)
3441 continue;
3442 //FIXME check for overflow
3443
3444 if(level){
3445 if(level < 63 && level > -63){
3446 if(i < last_non_zero)
3447 score += length[UNI_AC_ENC_INDEX(run, new_level+64)]
3448 - length[UNI_AC_ENC_INDEX(run, level+64)];
3449 else
3450 score += last_length[UNI_AC_ENC_INDEX(run, new_level+64)]
3451 - last_length[UNI_AC_ENC_INDEX(run, level+64)];
3452 }
3453 }else{
3454 assert(FFABS(new_level)==1);
3455
3456 if(analyze_gradient){
3457 int g= d1[ scantable[i] ];
3458 if(g && (g^new_level) >= 0)
3459 continue;
3460 }
3461
3462 if(i < last_non_zero){
3463 int next_i= i + run2 + 1;
3464 int next_level= block[ perm_scantable[next_i] ] + 64;
3465
3466 if(next_level&(~127))
3467 next_level= 0;
3468
3469 if(next_i < last_non_zero)
3470 score += length[UNI_AC_ENC_INDEX(run, 65)]
3471 + length[UNI_AC_ENC_INDEX(run2, next_level)]
3472 - length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3473 else
3474 score += length[UNI_AC_ENC_INDEX(run, 65)]
3475 + last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3476 - last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3477 }else{
3478 score += last_length[UNI_AC_ENC_INDEX(run, 65)];
3479 if(prev_level){
3480 score += length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3481 - last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3482 }
3483 }
3484 }
3485 }else{
3486 new_coeff=0;
3487 assert(FFABS(level)==1);
3488
3489 if(i < last_non_zero){
3490 int next_i= i + run2 + 1;
3491 int next_level= block[ perm_scantable[next_i] ] + 64;
3492
3493 if(next_level&(~127))
3494 next_level= 0;
3495
3496 if(next_i < last_non_zero)
3497 score += length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3498 - length[UNI_AC_ENC_INDEX(run2, next_level)]
3499 - length[UNI_AC_ENC_INDEX(run, 65)];
3500 else
3501 score += last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3502 - last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3503 - length[UNI_AC_ENC_INDEX(run, 65)];
3504 }else{
3505 score += -last_length[UNI_AC_ENC_INDEX(run, 65)];
3506 if(prev_level){
3507 score += last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3508 - length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3509 }
3510 }
3511 }
3512
3513 score *= lambda;
3514
3515 unquant_change= new_coeff - old_coeff;
3516 assert((score < 100*lambda && score > -100*lambda) || lambda==0);
3517
3518 score+= s->dsp.try_8x8basis(rem, weight, basis[j], unquant_change);
3519 if(score<best_score){
3520 best_score= score;
3521 best_coeff= i;
3522 best_change= change;
3523 best_unquant_change= unquant_change;
3524 }
3525 }
3526 if(level){
3527 prev_level= level + 64;
3528 if(prev_level&(~127))
3529 prev_level= 0;
3530 prev_run= run;
3531 run=0;
3532 }else{
3533 run++;
3534 }
3535 }
3536#ifdef REFINE_STATS
3537STOP_TIMER("iterative step")}
3538#endif
3539
3540 if(best_change){
3541 int j= perm_scantable[ best_coeff ];
3542
3543 block[j] += best_change;
3544
3545 if(best_coeff > last_non_zero){
3546 last_non_zero= best_coeff;
3547 assert(block[j]);
3548#ifdef REFINE_STATS
3549after_last++;
3550#endif
3551 }else{
3552#ifdef REFINE_STATS
3553if(block[j]){
3554 if(block[j] - best_change){
3555 if(FFABS(block[j]) > FFABS(block[j] - best_change)){
3556 raise++;
3557 }else{
3558 lower++;
3559 }
3560 }else{
3561 from_zero++;
3562 }
3563}else{
3564 to_zero++;
3565}
3566#endif
3567 for(; last_non_zero>=start_i; last_non_zero--){
3568 if(block[perm_scantable[last_non_zero]])
3569 break;
3570 }
3571 }
3572#ifdef REFINE_STATS
3573count++;
3574if(256*256*256*64 % count == 0){
3575 printf("after_last:%d to_zero:%d from_zero:%d raise:%d lower:%d sign:%d xyp:%d/%d/%d\n", after_last, to_zero, from_zero, raise, lower, messed_sign, s->mb_x, s->mb_y, s->picture_number);
3576}
3577#endif
3578 run=0;
3579 rle_index=0;
3580 for(i=start_i; i<=last_non_zero; i++){
3581 int j= perm_scantable[i];
3582 const int level= block[j];
3583
3584 if(level){
3585 run_tab[rle_index++]=run;
3586 run=0;
3587 }else{
3588 run++;
3589 }
3590 }
3591
3592 s->dsp.add_8x8basis(rem, basis[j], best_unquant_change);
3593 }else{
3594 break;
3595 }
3596 }
3597#ifdef REFINE_STATS
3598if(last_non_zero>0){
3599STOP_TIMER("iterative search")
3600}
3601}
3602#endif
3603
3604 return last_non_zero;
3605}
3606
3607int dct_quantize_c(MpegEncContext *s,
3608 DCTELEM *block, int n,
3609 int qscale, int *overflow)
3610{
3611 int i, j, level, last_non_zero, q, start_i;
3612 const int *qmat;
3613 const uint8_t *scantable= s->intra_scantable.scantable;
3614 int bias;
3615 int max=0;
3616 unsigned int threshold1, threshold2;
3617
3618 s->dsp.fdct (block);
3619
3620 if(s->dct_error_sum)
3621 s->denoise_dct(s, block);
3622
3623 if (s->mb_intra) {
3624 if (!s->h263_aic) {
3625 if (n < 4)
3626 q = s->y_dc_scale;
3627 else
3628 q = s->c_dc_scale;
3629 q = q << 3;
3630 } else
3631 /* For AIC we skip quant/dequant of INTRADC */
3632 q = 1 << 3;
3633
3634 /* note: block[0] is assumed to be positive */
3635 block[0] = (block[0] + (q >> 1)) / q;
3636 start_i = 1;
3637 last_non_zero = 0;
3638 qmat = s->q_intra_matrix[qscale];
3639 bias= s->intra_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3640 } else {
3641 start_i = 0;
3642 last_non_zero = -1;
3643 qmat = s->q_inter_matrix[qscale];
3644 bias= s->inter_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3645 }
3646 threshold1= (1<<QMAT_SHIFT) - bias - 1;
3647 threshold2= (threshold1<<1);
3648 for(i=63;i>=start_i;i--) {
3649 j = scantable[i];
3650 level = block[j] * qmat[j];
3651
3652 if(((unsigned)(level+threshold1))>threshold2){
3653 last_non_zero = i;
3654 break;
3655 }else{
3656 block[j]=0;
3657 }
3658 }
3659 for(i=start_i; i<=last_non_zero; i++) {
3660 j = scantable[i];
3661 level = block[j] * qmat[j];
3662
3663// if( bias+level >= (1<<QMAT_SHIFT)
3664// || bias-level >= (1<<QMAT_SHIFT)){
3665 if(((unsigned)(level+threshold1))>threshold2){
3666 if(level>0){
3667 level= (bias + level)>>QMAT_SHIFT;
3668 block[j]= level;
3669 }else{
3670 level= (bias - level)>>QMAT_SHIFT;
3671 block[j]= -level;
3672 }
3673 max |=level;
3674 }else{
3675 block[j]=0;
3676 }
3677 }
3678 *overflow= s->max_qcoeff < max; //overflow might have happened
3679
3680 /* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */
3681 if (s->dsp.idct_permutation_type != FF_NO_IDCT_PERM)
3682 ff_block_permute(block, s->dsp.idct_permutation, scantable, last_non_zero);
3683
3684 return last_non_zero;
3685}
3686
3687AVCodec h263_encoder = {
3688 "h263",
3689 CODEC_TYPE_VIDEO,
3690 CODEC_ID_H263,
3691 sizeof(MpegEncContext),
3692 MPV_encode_init,
3693 MPV_encode_picture,
3694 MPV_encode_end,
3695 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3696};
3697
3698AVCodec h263p_encoder = {
3699 "h263p",
3700 CODEC_TYPE_VIDEO,
3701 CODEC_ID_H263P,
3702 sizeof(MpegEncContext),
3703 MPV_encode_init,
3704 MPV_encode_picture,
3705 MPV_encode_end,
3706 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3707};
3708
3709AVCodec flv_encoder = {
3710 "flv",
3711 CODEC_TYPE_VIDEO,
3712 CODEC_ID_FLV1,
3713 sizeof(MpegEncContext),
3714 MPV_encode_init,
3715 MPV_encode_picture,
3716 MPV_encode_end,
3717 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3718};
3719
3720AVCodec rv10_encoder = {
3721 "rv10",
3722 CODEC_TYPE_VIDEO,
3723 CODEC_ID_RV10,
3724 sizeof(MpegEncContext),
3725 MPV_encode_init,
3726 MPV_encode_picture,
3727 MPV_encode_end,
3728 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3729};
3730
3731AVCodec rv20_encoder = {
3732 "rv20",
3733 CODEC_TYPE_VIDEO,
3734 CODEC_ID_RV20,
3735 sizeof(MpegEncContext),
3736 MPV_encode_init,
3737 MPV_encode_picture,
3738 MPV_encode_end,
3739 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3740};
3741
3742AVCodec mpeg4_encoder = {
3743 "mpeg4",
3744 CODEC_TYPE_VIDEO,
3745 CODEC_ID_MPEG4,
3746 sizeof(MpegEncContext),
3747 MPV_encode_init,
3748 MPV_encode_picture,
3749 MPV_encode_end,
3750 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3751 .capabilities= CODEC_CAP_DELAY,
3752};
3753
3754AVCodec msmpeg4v1_encoder = {
3755 "msmpeg4v1",
3756 CODEC_TYPE_VIDEO,
3757 CODEC_ID_MSMPEG4V1,
3758 sizeof(MpegEncContext),
3759 MPV_encode_init,
3760 MPV_encode_picture,
3761 MPV_encode_end,
3762 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3763};
3764
3765AVCodec msmpeg4v2_encoder = {
3766 "msmpeg4v2",
3767 CODEC_TYPE_VIDEO,
3768 CODEC_ID_MSMPEG4V2,
3769 sizeof(MpegEncContext),
3770 MPV_encode_init,
3771 MPV_encode_picture,
3772 MPV_encode_end,
3773 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3774};
3775
3776AVCodec msmpeg4v3_encoder = {
3777 "msmpeg4",
3778 CODEC_TYPE_VIDEO,
3779 CODEC_ID_MSMPEG4V3,
3780 sizeof(MpegEncContext),
3781 MPV_encode_init,
3782 MPV_encode_picture,
3783 MPV_encode_end,
3784 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3785};
3786
3787AVCodec wmv1_encoder = {
3788 "wmv1",
3789 CODEC_TYPE_VIDEO,
3790 CODEC_ID_WMV1,
3791 sizeof(MpegEncContext),
3792 MPV_encode_init,
3793 MPV_encode_picture,
3794 MPV_encode_end,
3795 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3796};