Move ff_sqrt() to libavutil/intmath.h
[libav.git] / libavcodec / mpegvideo_enc.c
CommitLineData
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1/*
2 * The simplest mpeg encoder (well, it was the simplest!)
406792e7 3 * Copyright (c) 2000,2001 Fabrice Bellard
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4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5 *
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6 * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
7 *
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8 * This file is part of FFmpeg.
9 *
10 * FFmpeg is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * FFmpeg is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with FFmpeg; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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23 */
24
25/**
bad5537e 26 * @file libavcodec/mpegvideo_enc.c
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27 * The simplest mpeg encoder (well, it was the simplest!).
28 */
29
94ca624f 30#include "libavutil/intmath.h"
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31#include "avcodec.h"
32#include "dsputil.h"
33#include "mpegvideo.h"
34#include "mpegvideo_common.h"
c46eeae2 35#include "h263.h"
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36#include "mjpegenc.h"
37#include "msmpeg4.h"
38#include "faandct.h"
8b22017f 39#include "aandcttab.h"
eb523769 40#include "flv.h"
ca334dd1 41#include "mpeg4video.h"
7ffd8332 42#include "internal.h"
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43#include <limits.h>
44
45//#undef NDEBUG
46//#include <assert.h>
47
48static int encode_picture(MpegEncContext *s, int picture_number);
49static int dct_quantize_refine(MpegEncContext *s, DCTELEM *block, int16_t *weight, DCTELEM *orig, int n, int qscale);
50static int sse_mb(MpegEncContext *s);
51
52/* enable all paranoid tests for rounding, overflows, etc... */
53//#define PARANOID
54
55//#define DEBUG
56
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57static uint8_t default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
58static uint8_t default_fcode_tab[MAX_MV*2+1];
59
69cea75f 60void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
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61 const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra)
62{
63 int qscale;
64 int shift=0;
65
66 for(qscale=qmin; qscale<=qmax; qscale++){
67 int i;
68 if (dsp->fdct == ff_jpeg_fdct_islow
69#ifdef FAAN_POSTSCALE
70 || dsp->fdct == ff_faandct
71#endif
72 ) {
73 for(i=0;i<64;i++) {
74 const int j= dsp->idct_permutation[i];
75 /* 16 <= qscale * quant_matrix[i] <= 7905 */
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76 /* 19952 <= ff_aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
77 /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1 << 36) / 249205026 */
78 /* 3444240 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
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79
80 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) /
81 (qscale * quant_matrix[j]));
82 }
83 } else if (dsp->fdct == fdct_ifast
84#ifndef FAAN_POSTSCALE
85 || dsp->fdct == ff_faandct
86#endif
87 ) {
88 for(i=0;i<64;i++) {
89 const int j= dsp->idct_permutation[i];
90 /* 16 <= qscale * quant_matrix[i] <= 7905 */
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91 /* 19952 <= ff_aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
92 /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
93 /* 3444240 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
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94
95 qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) /
5bdf124c 96 (ff_aanscales[i] * qscale * quant_matrix[j]));
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97 }
98 } else {
99 for(i=0;i<64;i++) {
100 const int j= dsp->idct_permutation[i];
101 /* We can safely suppose that 16 <= quant_matrix[i] <= 255
102 So 16 <= qscale * quant_matrix[i] <= 7905
103 so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
104 so 32768 >= (1<<19) / (qscale * quant_matrix[i]) >= 67
105 */
106 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / (qscale * quant_matrix[j]));
107// qmat [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
108 qmat16[qscale][0][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[j]);
109
110 if(qmat16[qscale][0][i]==0 || qmat16[qscale][0][i]==128*256) qmat16[qscale][0][i]=128*256-1;
111 qmat16[qscale][1][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][0][i]);
112 }
113 }
114
115 for(i=intra; i<64; i++){
116 int64_t max= 8191;
117 if (dsp->fdct == fdct_ifast
118#ifndef FAAN_POSTSCALE
119 || dsp->fdct == ff_faandct
120#endif
121 ) {
5bdf124c 122 max = (8191LL*ff_aanscales[i]) >> 14;
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123 }
124 while(((max * qmat[qscale][i]) >> shift) > INT_MAX){
125 shift++;
126 }
127 }
128 }
129 if(shift){
130 av_log(NULL, AV_LOG_INFO, "Warning, QMAT_SHIFT is larger than %d, overflows possible\n", QMAT_SHIFT - shift);
131 }
132}
133
134static inline void update_qscale(MpegEncContext *s){
135 s->qscale= (s->lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
136 s->qscale= av_clip(s->qscale, s->avctx->qmin, s->avctx->qmax);
137
138 s->lambda2= (s->lambda*s->lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
139}
140
141void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix){
142 int i;
143
144 if(matrix){
145 put_bits(pb, 1, 1);
146 for(i=0;i<64;i++) {
147 put_bits(pb, 8, matrix[ ff_zigzag_direct[i] ]);
148 }
149 }else
150 put_bits(pb, 1, 0);
151}
152
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153/**
154 * init s->current_picture.qscale_table from s->lambda_table
155 */
156void ff_init_qscale_tab(MpegEncContext *s){
157 int8_t * const qscale_table= s->current_picture.qscale_table;
158 int i;
159
160 for(i=0; i<s->mb_num; i++){
161 unsigned int lam= s->lambda_table[ s->mb_index2xy[i] ];
162 int qp= (lam*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
163 qscale_table[ s->mb_index2xy[i] ]= av_clip(qp, s->avctx->qmin, s->avctx->qmax);
164 }
165}
166
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167static void copy_picture_attributes(MpegEncContext *s, AVFrame *dst, AVFrame *src){
168 int i;
169
170 dst->pict_type = src->pict_type;
171 dst->quality = src->quality;
172 dst->coded_picture_number = src->coded_picture_number;
173 dst->display_picture_number = src->display_picture_number;
174// dst->reference = src->reference;
175 dst->pts = src->pts;
176 dst->interlaced_frame = src->interlaced_frame;
177 dst->top_field_first = src->top_field_first;
178
179 if(s->avctx->me_threshold){
180 if(!src->motion_val[0])
181 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_val not set!\n");
182 if(!src->mb_type)
183 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.mb_type not set!\n");
184 if(!src->ref_index[0])
185 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.ref_index not set!\n");
186 if(src->motion_subsample_log2 != dst->motion_subsample_log2)
187 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_subsample_log2 doesn't match! (%d!=%d)\n",
188 src->motion_subsample_log2, dst->motion_subsample_log2);
189
190 memcpy(dst->mb_type, src->mb_type, s->mb_stride * s->mb_height * sizeof(dst->mb_type[0]));
191
192 for(i=0; i<2; i++){
193 int stride= ((16*s->mb_width )>>src->motion_subsample_log2) + 1;
194 int height= ((16*s->mb_height)>>src->motion_subsample_log2);
195
196 if(src->motion_val[i] && src->motion_val[i] != dst->motion_val[i]){
197 memcpy(dst->motion_val[i], src->motion_val[i], 2*stride*height*sizeof(int16_t));
198 }
199 if(src->ref_index[i] && src->ref_index[i] != dst->ref_index[i]){
200 memcpy(dst->ref_index[i], src->ref_index[i], s->b8_stride*2*s->mb_height*sizeof(int8_t));
201 }
202 }
203 }
204}
205
206static void update_duplicate_context_after_me(MpegEncContext *dst, MpegEncContext *src){
207#define COPY(a) dst->a= src->a
208 COPY(pict_type);
209 COPY(current_picture);
210 COPY(f_code);
211 COPY(b_code);
212 COPY(qscale);
213 COPY(lambda);
214 COPY(lambda2);
215 COPY(picture_in_gop_number);
216 COPY(gop_picture_number);
217 COPY(frame_pred_frame_dct); //FIXME don't set in encode_header
218 COPY(progressive_frame); //FIXME don't set in encode_header
219 COPY(partitioned_frame); //FIXME don't set in encode_header
220#undef COPY
221}
222
223/**
224 * sets the given MpegEncContext to defaults for encoding.
225 * the changed fields will not depend upon the prior state of the MpegEncContext.
226 */
227static void MPV_encode_defaults(MpegEncContext *s){
228 int i;
229 MPV_common_defaults(s);
230
231 for(i=-16; i<16; i++){
232 default_fcode_tab[i + MAX_MV]= 1;
233 }
234 s->me.mv_penalty= default_mv_penalty;
235 s->fcode_tab= default_fcode_tab;
236}
237
238/* init video encoder */
98a6fff9 239av_cold int MPV_encode_init(AVCodecContext *avctx)
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240{
241 MpegEncContext *s = avctx->priv_data;
242 int i;
243 int chroma_h_shift, chroma_v_shift;
244
245 MPV_encode_defaults(s);
246
247 switch (avctx->codec_id) {
248 case CODEC_ID_MPEG2VIDEO:
249 if(avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P){
250 av_log(avctx, AV_LOG_ERROR, "only YUV420 and YUV422 are supported\n");
251 return -1;
252 }
253 break;
254 case CODEC_ID_LJPEG:
255 case CODEC_ID_MJPEG:
8c7f8206 256 if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P && avctx->pix_fmt != PIX_FMT_RGB32 &&
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257 ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P) || avctx->strict_std_compliance>FF_COMPLIANCE_INOFFICIAL)){
258 av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n");
259 return -1;
260 }
261 break;
262 default:
263 if(avctx->pix_fmt != PIX_FMT_YUV420P){
264 av_log(avctx, AV_LOG_ERROR, "only YUV420 is supported\n");
265 return -1;
266 }
267 }
268
269 switch (avctx->pix_fmt) {
270 case PIX_FMT_YUVJ422P:
271 case PIX_FMT_YUV422P:
272 s->chroma_format = CHROMA_422;
273 break;
274 case PIX_FMT_YUVJ420P:
275 case PIX_FMT_YUV420P:
276 default:
277 s->chroma_format = CHROMA_420;
278 break;
279 }
280
281 s->bit_rate = avctx->bit_rate;
282 s->width = avctx->width;
283 s->height = avctx->height;
284 if(avctx->gop_size > 600 && avctx->strict_std_compliance>FF_COMPLIANCE_EXPERIMENTAL){
285 av_log(avctx, AV_LOG_ERROR, "Warning keyframe interval too large! reducing it ...\n");
286 avctx->gop_size=600;
287 }
288 s->gop_size = avctx->gop_size;
289 s->avctx = avctx;
290 s->flags= avctx->flags;
291 s->flags2= avctx->flags2;
292 s->max_b_frames= avctx->max_b_frames;
293 s->codec_id= avctx->codec->id;
294 s->luma_elim_threshold = avctx->luma_elim_threshold;
295 s->chroma_elim_threshold= avctx->chroma_elim_threshold;
296 s->strict_std_compliance= avctx->strict_std_compliance;
297 s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
298 s->quarter_sample= (avctx->flags & CODEC_FLAG_QPEL)!=0;
299 s->mpeg_quant= avctx->mpeg_quant;
300 s->rtp_mode= !!avctx->rtp_payload_size;
301 s->intra_dc_precision= avctx->intra_dc_precision;
302 s->user_specified_pts = AV_NOPTS_VALUE;
303
304 if (s->gop_size <= 1) {
305 s->intra_only = 1;
306 s->gop_size = 12;
307 } else {
308 s->intra_only = 0;
309 }
310
311 s->me_method = avctx->me_method;
312
313 /* Fixed QSCALE */
314 s->fixed_qscale = !!(avctx->flags & CODEC_FLAG_QSCALE);
315
316 s->adaptive_quant= ( s->avctx->lumi_masking
317 || s->avctx->dark_masking
318 || s->avctx->temporal_cplx_masking
319 || s->avctx->spatial_cplx_masking
320 || s->avctx->p_masking
321 || s->avctx->border_masking
322 || (s->flags&CODEC_FLAG_QP_RD))
323 && !s->fixed_qscale;
324
325 s->obmc= !!(s->flags & CODEC_FLAG_OBMC);
326 s->loop_filter= !!(s->flags & CODEC_FLAG_LOOP_FILTER);
327 s->alternate_scan= !!(s->flags & CODEC_FLAG_ALT_SCAN);
328 s->intra_vlc_format= !!(s->flags2 & CODEC_FLAG2_INTRA_VLC);
329 s->q_scale_type= !!(s->flags2 & CODEC_FLAG2_NON_LINEAR_QUANT);
330
331 if(avctx->rc_max_rate && !avctx->rc_buffer_size){
332 av_log(avctx, AV_LOG_ERROR, "a vbv buffer size is needed, for encoding with a maximum bitrate\n");
333 return -1;
334 }
335
336 if(avctx->rc_min_rate && avctx->rc_max_rate != avctx->rc_min_rate){
337 av_log(avctx, AV_LOG_INFO, "Warning min_rate > 0 but min_rate != max_rate isn't recommended!\n");
338 }
339
340 if(avctx->rc_min_rate && avctx->rc_min_rate > avctx->bit_rate){
341 av_log(avctx, AV_LOG_ERROR, "bitrate below min bitrate\n");
342 return -1;
343 }
344
345 if(avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate){
346 av_log(avctx, AV_LOG_INFO, "bitrate above max bitrate\n");
347 return -1;
348 }
349
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350 if(avctx->rc_max_rate && avctx->rc_max_rate == avctx->bit_rate && avctx->rc_max_rate != avctx->rc_min_rate){
351 av_log(avctx, AV_LOG_INFO, "impossible bitrate constraints, this will fail\n");
352 }
353
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354 if(avctx->rc_buffer_size && avctx->bit_rate*av_q2d(avctx->time_base) > avctx->rc_buffer_size){
355 av_log(avctx, AV_LOG_ERROR, "VBV buffer too small for bitrate\n");
356 return -1;
357 }
358
359 if(avctx->bit_rate*av_q2d(avctx->time_base) > avctx->bit_rate_tolerance){
360 av_log(avctx, AV_LOG_ERROR, "bitrate tolerance too small for bitrate\n");
361 return -1;
362 }
363
364 if( s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate
365 && (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO)
366 && 90000LL * (avctx->rc_buffer_size-1) > s->avctx->rc_max_rate*0xFFFFLL){
367
368 av_log(avctx, AV_LOG_INFO, "Warning vbv_delay will be set to 0xFFFF (=VBR) as the specified vbv buffer is too large for the given bitrate!\n");
369 }
370
371 if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4
372 && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P && s->codec_id != CODEC_ID_FLV1){
373 av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n");
374 return -1;
375 }
376
377 if(s->obmc && s->avctx->mb_decision != FF_MB_DECISION_SIMPLE){
378 av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with simple mb decision\n");
379 return -1;
380 }
381
382 if(s->obmc && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P){
383 av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with H263(+)\n");
384 return -1;
385 }
386
387 if(s->quarter_sample && s->codec_id != CODEC_ID_MPEG4){
388 av_log(avctx, AV_LOG_ERROR, "qpel not supported by codec\n");
389 return -1;
390 }
391
392 if(s->data_partitioning && s->codec_id != CODEC_ID_MPEG4){
393 av_log(avctx, AV_LOG_ERROR, "data partitioning not supported by codec\n");
394 return -1;
395 }
396
397 if(s->max_b_frames && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO){
398 av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n");
399 return -1;
400 }
401
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402 if ((s->codec_id == CODEC_ID_MPEG4 || s->codec_id == CODEC_ID_H263 ||
403 s->codec_id == CODEC_ID_H263P) &&
404 (avctx->sample_aspect_ratio.num > 255 || avctx->sample_aspect_ratio.den > 255)) {
405 av_log(avctx, AV_LOG_ERROR, "Invalid pixel aspect ratio %i/%i, limit is 255/255\n",
406 avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den);
407 return -1;
408 }
409
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410 if((s->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN))
411 && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG2VIDEO){
412 av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n");
413 return -1;
414 }
415
416 if(s->mpeg_quant && s->codec_id != CODEC_ID_MPEG4){ //FIXME mpeg2 uses that too
417 av_log(avctx, AV_LOG_ERROR, "mpeg2 style quantization not supported by codec\n");
418 return -1;
419 }
420
febea2f2 421 if((s->flags & CODEC_FLAG_CBP_RD) && !avctx->trellis){
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422 av_log(avctx, AV_LOG_ERROR, "CBP RD needs trellis quant\n");
423 return -1;
424 }
425
426 if((s->flags & CODEC_FLAG_QP_RD) && s->avctx->mb_decision != FF_MB_DECISION_RD){
427 av_log(avctx, AV_LOG_ERROR, "QP RD needs mbd=2\n");
428 return -1;
429 }
430
431 if(s->avctx->scenechange_threshold < 1000000000 && (s->flags & CODEC_FLAG_CLOSED_GOP)){
7ce68923 432 av_log(avctx, AV_LOG_ERROR, "closed gop with scene change detection are not supported yet, set threshold to 1000000000\n");
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433 return -1;
434 }
435
436 if((s->flags2 & CODEC_FLAG2_INTRA_VLC) && s->codec_id != CODEC_ID_MPEG2VIDEO){
437 av_log(avctx, AV_LOG_ERROR, "intra vlc table not supported by codec\n");
438 return -1;
439 }
440
441 if(s->flags & CODEC_FLAG_LOW_DELAY){
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442 if (s->codec_id != CODEC_ID_MPEG2VIDEO){
443 av_log(avctx, AV_LOG_ERROR, "low delay forcing is only available for mpeg2\n");
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444 return -1;
445 }
446 if (s->max_b_frames != 0){
447 av_log(avctx, AV_LOG_ERROR, "b frames cannot be used with low delay\n");
448 return -1;
449 }
450 }
451
452 if(s->q_scale_type == 1){
453 if(s->codec_id != CODEC_ID_MPEG2VIDEO){
454 av_log(avctx, AV_LOG_ERROR, "non linear quant is only available for mpeg2\n");
455 return -1;
456 }
457 if(avctx->qmax > 12){
458 av_log(avctx, AV_LOG_ERROR, "non linear quant only supports qmax <= 12 currently\n");
459 return -1;
460 }
461 }
462
463 if(s->avctx->thread_count > 1 && s->codec_id != CODEC_ID_MPEG4
464 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO
465 && (s->codec_id != CODEC_ID_H263P || !(s->flags & CODEC_FLAG_H263P_SLICE_STRUCT))){
466 av_log(avctx, AV_LOG_ERROR, "multi threaded encoding not supported by codec\n");
467 return -1;
468 }
469
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MN
470 if(s->avctx->thread_count < 1){
471 av_log(avctx, AV_LOG_ERROR, "automatic thread number detection not supported by codec, patch welcome\n");
472 return -1;
473 }
474
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BF
475 if(s->avctx->thread_count > 1)
476 s->rtp_mode= 1;
477
478 if(!avctx->time_base.den || !avctx->time_base.num){
479 av_log(avctx, AV_LOG_ERROR, "framerate not set\n");
480 return -1;
481 }
482
483 i= (INT_MAX/2+128)>>8;
484 if(avctx->me_threshold >= i){
485 av_log(avctx, AV_LOG_ERROR, "me_threshold too large, max is %d\n", i - 1);
486 return -1;
487 }
488 if(avctx->mb_threshold >= i){
489 av_log(avctx, AV_LOG_ERROR, "mb_threshold too large, max is %d\n", i - 1);
490 return -1;
491 }
492
493 if(avctx->b_frame_strategy && (avctx->flags&CODEC_FLAG_PASS2)){
494 av_log(avctx, AV_LOG_INFO, "notice: b_frame_strategy only affects the first pass\n");
495 avctx->b_frame_strategy = 0;
496 }
497
9ce6c138 498 i= av_gcd(avctx->time_base.den, avctx->time_base.num);
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499 if(i > 1){
500 av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n");
501 avctx->time_base.den /= i;
502 avctx->time_base.num /= i;
503// return -1;
504 }
505
506 if(s->codec_id==CODEC_ID_MJPEG){
507 s->intra_quant_bias= 1<<(QUANT_BIAS_SHIFT-1); //(a + x/2)/x
508 s->inter_quant_bias= 0;
509 }else if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO){
510 s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x
511 s->inter_quant_bias= 0;
512 }else{
513 s->intra_quant_bias=0;
514 s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x
515 }
516
517 if(avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
518 s->intra_quant_bias= avctx->intra_quant_bias;
519 if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)
520 s->inter_quant_bias= avctx->inter_quant_bias;
521
522 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift);
523
524 if(avctx->codec_id == CODEC_ID_MPEG4 && s->avctx->time_base.den > (1<<16)-1){
525 av_log(avctx, AV_LOG_ERROR, "timebase not supported by mpeg 4 standard\n");
526 return -1;
527 }
528 s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1;
529
530 switch(avctx->codec->id) {
531 case CODEC_ID_MPEG1VIDEO:
532 s->out_format = FMT_MPEG1;
533 s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
534 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
535 break;
536 case CODEC_ID_MPEG2VIDEO:
537 s->out_format = FMT_MPEG1;
538 s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
539 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
540 s->rtp_mode= 1;
541 break;
542 case CODEC_ID_LJPEG:
543 case CODEC_ID_MJPEG:
544 s->out_format = FMT_MJPEG;
545 s->intra_only = 1; /* force intra only for jpeg */
a1a63143 546 if(avctx->codec->id == CODEC_ID_LJPEG && avctx->pix_fmt == PIX_FMT_BGRA){
e0b176ad
MN
547 s->mjpeg_vsample[0] = s->mjpeg_hsample[0] =
548 s->mjpeg_vsample[1] = s->mjpeg_hsample[1] =
549 s->mjpeg_vsample[2] = s->mjpeg_hsample[2] = 1;
a1a63143
MN
550 }else{
551 s->mjpeg_vsample[0] = 2;
552 s->mjpeg_vsample[1] = 2>>chroma_v_shift;
553 s->mjpeg_vsample[2] = 2>>chroma_v_shift;
554 s->mjpeg_hsample[0] = 2;
555 s->mjpeg_hsample[1] = 2>>chroma_h_shift;
556 s->mjpeg_hsample[2] = 2>>chroma_h_shift;
e0b176ad 557 }
49fb20cb 558 if (!(CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER)
3ada94ba
BF
559 || ff_mjpeg_encode_init(s) < 0)
560 return -1;
561 avctx->delay=0;
562 s->low_delay=1;
563 break;
564 case CODEC_ID_H261:
49fb20cb 565 if (!CONFIG_H261_ENCODER) return -1;
3ada94ba
BF
566 if (ff_h261_get_picture_format(s->width, s->height) < 0) {
567 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);
568 return -1;
569 }
570 s->out_format = FMT_H261;
571 avctx->delay=0;
572 s->low_delay=1;
573 break;
574 case CODEC_ID_H263:
49fb20cb 575 if (!CONFIG_H263_ENCODER) return -1;
c46eeae2 576 if (ff_match_2uint16(h263_format, FF_ARRAY_ELEMS(h263_format), s->width, s->height) == 7) {
3ada94ba
BF
577 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);
578 return -1;
579 }
580 s->out_format = FMT_H263;
581 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
582 avctx->delay=0;
583 s->low_delay=1;
584 break;
585 case CODEC_ID_H263P:
586 s->out_format = FMT_H263;
587 s->h263_plus = 1;
588 /* Fx */
589 s->umvplus = (avctx->flags & CODEC_FLAG_H263P_UMV) ? 1:0;
590 s->h263_aic= (avctx->flags & CODEC_FLAG_AC_PRED) ? 1:0;
591 s->modified_quant= s->h263_aic;
592 s->alt_inter_vlc= (avctx->flags & CODEC_FLAG_H263P_AIV) ? 1:0;
593 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
594 s->loop_filter= (avctx->flags & CODEC_FLAG_LOOP_FILTER) ? 1:0;
595 s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
596 s->h263_slice_structured= (s->flags & CODEC_FLAG_H263P_SLICE_STRUCT) ? 1:0;
597
598 /* /Fx */
599 /* These are just to be sure */
600 avctx->delay=0;
601 s->low_delay=1;
602 break;
603 case CODEC_ID_FLV1:
604 s->out_format = FMT_H263;
605 s->h263_flv = 2; /* format = 1; 11-bit codes */
606 s->unrestricted_mv = 1;
607 s->rtp_mode=0; /* don't allow GOB */
608 avctx->delay=0;
609 s->low_delay=1;
610 break;
611 case CODEC_ID_RV10:
612 s->out_format = FMT_H263;
613 avctx->delay=0;
614 s->low_delay=1;
615 break;
616 case CODEC_ID_RV20:
617 s->out_format = FMT_H263;
618 avctx->delay=0;
619 s->low_delay=1;
620 s->modified_quant=1;
621 s->h263_aic=1;
622 s->h263_plus=1;
623 s->loop_filter=1;
624 s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
625 break;
626 case CODEC_ID_MPEG4:
627 s->out_format = FMT_H263;
628 s->h263_pred = 1;
629 s->unrestricted_mv = 1;
630 s->low_delay= s->max_b_frames ? 0 : 1;
631 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
632 break;
633 case CODEC_ID_MSMPEG4V1:
634 s->out_format = FMT_H263;
635 s->h263_msmpeg4 = 1;
636 s->h263_pred = 1;
637 s->unrestricted_mv = 1;
638 s->msmpeg4_version= 1;
639 avctx->delay=0;
640 s->low_delay=1;
641 break;
642 case CODEC_ID_MSMPEG4V2:
643 s->out_format = FMT_H263;
644 s->h263_msmpeg4 = 1;
645 s->h263_pred = 1;
646 s->unrestricted_mv = 1;
647 s->msmpeg4_version= 2;
648 avctx->delay=0;
649 s->low_delay=1;
650 break;
651 case CODEC_ID_MSMPEG4V3:
652 s->out_format = FMT_H263;
653 s->h263_msmpeg4 = 1;
654 s->h263_pred = 1;
655 s->unrestricted_mv = 1;
656 s->msmpeg4_version= 3;
657 s->flipflop_rounding=1;
658 avctx->delay=0;
659 s->low_delay=1;
660 break;
661 case CODEC_ID_WMV1:
662 s->out_format = FMT_H263;
663 s->h263_msmpeg4 = 1;
664 s->h263_pred = 1;
665 s->unrestricted_mv = 1;
666 s->msmpeg4_version= 4;
667 s->flipflop_rounding=1;
668 avctx->delay=0;
669 s->low_delay=1;
670 break;
671 case CODEC_ID_WMV2:
672 s->out_format = FMT_H263;
673 s->h263_msmpeg4 = 1;
674 s->h263_pred = 1;
675 s->unrestricted_mv = 1;
676 s->msmpeg4_version= 5;
677 s->flipflop_rounding=1;
678 avctx->delay=0;
679 s->low_delay=1;
680 break;
681 default:
682 return -1;
683 }
684
685 avctx->has_b_frames= !s->low_delay;
686
687 s->encoding = 1;
688
01bc48f4
BC
689 s->progressive_frame=
690 s->progressive_sequence= !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN));
691
3ada94ba
BF
692 /* init */
693 if (MPV_common_init(s) < 0)
694 return -1;
695
53727262
AJ
696 if(!s->dct_quantize)
697 s->dct_quantize = dct_quantize_c;
698 if(!s->denoise_dct)
699 s->denoise_dct = denoise_dct_c;
700 s->fast_dct_quantize = s->dct_quantize;
febea2f2 701 if(avctx->trellis)
53727262
AJ
702 s->dct_quantize = dct_quantize_trellis_c;
703
49fb20cb 704 if((CONFIG_H263P_ENCODER || CONFIG_RV20_ENCODER) && s->modified_quant)
3ada94ba 705 s->chroma_qscale_table= ff_h263_chroma_qscale_table;
01bc48f4 706
3ada94ba
BF
707 s->quant_precision=5;
708
709 ff_set_cmp(&s->dsp, s->dsp.ildct_cmp, s->avctx->ildct_cmp);
710 ff_set_cmp(&s->dsp, s->dsp.frame_skip_cmp, s->avctx->frame_skip_cmp);
711
49fb20cb 712 if (CONFIG_H261_ENCODER && s->out_format == FMT_H261)
3ada94ba 713 ff_h261_encode_init(s);
f34121f3 714 if (CONFIG_H263_ENCODER && s->out_format == FMT_H263)
3ada94ba 715 h263_encode_init(s);
49fb20cb 716 if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version)
3ada94ba 717 ff_msmpeg4_encode_init(s);
49fb20cb 718 if ((CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
a6bc5731 719 && s->out_format == FMT_MPEG1)
3ada94ba
BF
720 ff_mpeg1_encode_init(s);
721
722 /* init q matrix */
723 for(i=0;i<64;i++) {
724 int j= s->dsp.idct_permutation[i];
49fb20cb 725 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){
3ada94ba
BF
726 s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
727 s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
728 }else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){
729 s->intra_matrix[j] =
730 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
731 }else
732 { /* mpeg1/2 */
733 s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
734 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
735 }
736 if(s->avctx->intra_matrix)
737 s->intra_matrix[j] = s->avctx->intra_matrix[i];
738 if(s->avctx->inter_matrix)
739 s->inter_matrix[j] = s->avctx->inter_matrix[i];
740 }
741
742 /* precompute matrix */
743 /* for mjpeg, we do include qscale in the matrix */
744 if (s->out_format != FMT_MJPEG) {
69cea75f 745 ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
3ada94ba 746 s->intra_matrix, s->intra_quant_bias, avctx->qmin, 31, 1);
69cea75f 747 ff_convert_matrix(&s->dsp, s->q_inter_matrix, s->q_inter_matrix16,
3ada94ba
BF
748 s->inter_matrix, s->inter_quant_bias, avctx->qmin, 31, 0);
749 }
750
751 if(ff_rate_control_init(s) < 0)
752 return -1;
753
754 return 0;
755}
756
98a6fff9 757av_cold int MPV_encode_end(AVCodecContext *avctx)
3ada94ba
BF
758{
759 MpegEncContext *s = avctx->priv_data;
760
761 ff_rate_control_uninit(s);
762
763 MPV_common_end(s);
49fb20cb 764 if ((CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER) && s->out_format == FMT_MJPEG)
3ada94ba
BF
765 ff_mjpeg_encode_close(s);
766
767 av_freep(&avctx->extradata);
768
769 return 0;
770}
771
772static int get_sae(uint8_t *src, int ref, int stride){
773 int x,y;
774 int acc=0;
775
776 for(y=0; y<16; y++){
777 for(x=0; x<16; x++){
778 acc+= FFABS(src[x+y*stride] - ref);
779 }
780 }
781
782 return acc;
783}
784
785static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride){
786 int x, y, w, h;
787 int acc=0;
788
789 w= s->width &~15;
790 h= s->height&~15;
791
792 for(y=0; y<h; y+=16){
793 for(x=0; x<w; x+=16){
794 int offset= x + y*stride;
795 int sad = s->dsp.sad[0](NULL, src + offset, ref + offset, stride, 16);
796 int mean= (s->dsp.pix_sum(src + offset, stride) + 128)>>8;
797 int sae = get_sae(src + offset, mean, stride);
798
799 acc+= sae + 500 < sad;
800 }
801 }
802 return acc;
803}
804
805
806static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
807 AVFrame *pic=NULL;
808 int64_t pts;
809 int i;
810 const int encoding_delay= s->max_b_frames;
811 int direct=1;
812
813 if(pic_arg){
814 pts= pic_arg->pts;
815 pic_arg->display_picture_number= s->input_picture_number++;
816
817 if(pts != AV_NOPTS_VALUE){
818 if(s->user_specified_pts != AV_NOPTS_VALUE){
819 int64_t time= pts;
820 int64_t last= s->user_specified_pts;
821
822 if(time <= last){
823 av_log(s->avctx, AV_LOG_ERROR, "Error, Invalid timestamp=%"PRId64", last=%"PRId64"\n", pts, s->user_specified_pts);
824 return -1;
825 }
826 }
827 s->user_specified_pts= pts;
828 }else{
829 if(s->user_specified_pts != AV_NOPTS_VALUE){
830 s->user_specified_pts=
831 pts= s->user_specified_pts + 1;
832 av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%"PRId64")\n", pts);
833 }else{
834 pts= pic_arg->display_picture_number;
835 }
836 }
837 }
838
839 if(pic_arg){
840 if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0;
841 if(pic_arg->linesize[0] != s->linesize) direct=0;
842 if(pic_arg->linesize[1] != s->uvlinesize) direct=0;
843 if(pic_arg->linesize[2] != s->uvlinesize) direct=0;
844
845// av_log(AV_LOG_DEBUG, "%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize);
846
847 if(direct){
848 i= ff_find_unused_picture(s, 1);
849
850 pic= (AVFrame*)&s->picture[i];
851 pic->reference= 3;
852
853 for(i=0; i<4; i++){
854 pic->data[i]= pic_arg->data[i];
855 pic->linesize[i]= pic_arg->linesize[i];
856 }
a4a750d3 857 ff_alloc_picture(s, (Picture*)pic, 1);
3ada94ba
BF
858 }else{
859 i= ff_find_unused_picture(s, 0);
860
861 pic= (AVFrame*)&s->picture[i];
862 pic->reference= 3;
863
a4a750d3 864 ff_alloc_picture(s, (Picture*)pic, 0);
3ada94ba
BF
865
866 if( pic->data[0] + INPLACE_OFFSET == pic_arg->data[0]
867 && pic->data[1] + INPLACE_OFFSET == pic_arg->data[1]
868 && pic->data[2] + INPLACE_OFFSET == pic_arg->data[2]){
869 // empty
870 }else{
871 int h_chroma_shift, v_chroma_shift;
872 avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
873
874 for(i=0; i<3; i++){
875 int src_stride= pic_arg->linesize[i];
876 int dst_stride= i ? s->uvlinesize : s->linesize;
877 int h_shift= i ? h_chroma_shift : 0;
878 int v_shift= i ? v_chroma_shift : 0;
879 int w= s->width >>h_shift;
880 int h= s->height>>v_shift;
881 uint8_t *src= pic_arg->data[i];
882 uint8_t *dst= pic->data[i];
883
884 if(!s->avctx->rc_buffer_size)
885 dst +=INPLACE_OFFSET;
886
887 if(src_stride==dst_stride)
888 memcpy(dst, src, src_stride*h);
889 else{
890 while(h--){
891 memcpy(dst, src, w);
892 dst += dst_stride;
893 src += src_stride;
894 }
895 }
896 }
897 }
898 }
899 copy_picture_attributes(s, pic, pic_arg);
900 pic->pts= pts; //we set this here to avoid modifiying pic_arg
901 }
902
903 /* shift buffer entries */
904 for(i=1; i<MAX_PICTURE_COUNT /*s->encoding_delay+1*/; i++)
905 s->input_picture[i-1]= s->input_picture[i];
906
907 s->input_picture[encoding_delay]= (Picture*)pic;
908
909 return 0;
910}
911
912static int skip_check(MpegEncContext *s, Picture *p, Picture *ref){
913 int x, y, plane;
914 int score=0;
915 int64_t score64=0;
916
917 for(plane=0; plane<3; plane++){
918 const int stride= p->linesize[plane];
919 const int bw= plane ? 1 : 2;
920 for(y=0; y<s->mb_height*bw; y++){
921 for(x=0; x<s->mb_width*bw; x++){
922 int off= p->type == FF_BUFFER_TYPE_SHARED ? 0: 16;
923 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);
924
925 switch(s->avctx->frame_skip_exp){
926 case 0: score= FFMAX(score, v); break;
927 case 1: score+= FFABS(v);break;
928 case 2: score+= v*v;break;
929 case 3: score64+= FFABS(v*v*(int64_t)v);break;
930 case 4: score64+= v*v*(int64_t)(v*v);break;
931 }
932 }
933 }
934 }
935
936 if(score) score64= score;
937
938 if(score64 < s->avctx->frame_skip_threshold)
939 return 1;
940 if(score64 < ((s->avctx->frame_skip_factor * (int64_t)s->lambda)>>8))
941 return 1;
942 return 0;
943}
944
945static int estimate_best_b_count(MpegEncContext *s){
946 AVCodec *codec= avcodec_find_encoder(s->avctx->codec_id);
947 AVCodecContext *c= avcodec_alloc_context();
948 AVFrame input[FF_MAX_B_FRAMES+2];
949 const int scale= s->avctx->brd_scale;
950 int i, j, out_size, p_lambda, b_lambda, lambda2;
951 int outbuf_size= s->width * s->height; //FIXME
952 uint8_t *outbuf= av_malloc(outbuf_size);
953 int64_t best_rd= INT64_MAX;
954 int best_b_count= -1;
955
956 assert(scale>=0 && scale <=3);
957
958// emms_c();
9701840b
AJ
959 p_lambda= s->last_lambda_for[FF_P_TYPE]; //s->next_picture_ptr->quality;
960 b_lambda= s->last_lambda_for[FF_B_TYPE]; //p_lambda *FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset;
3ada94ba
BF
961 if(!b_lambda) b_lambda= p_lambda; //FIXME we should do this somewhere else
962 lambda2= (b_lambda*b_lambda + (1<<FF_LAMBDA_SHIFT)/2 ) >> FF_LAMBDA_SHIFT;
963
964 c->width = s->width >> scale;
965 c->height= s->height>> scale;
966 c->flags= CODEC_FLAG_QSCALE | CODEC_FLAG_PSNR | CODEC_FLAG_INPUT_PRESERVED /*| CODEC_FLAG_EMU_EDGE*/;
967 c->flags|= s->avctx->flags & CODEC_FLAG_QPEL;
968 c->mb_decision= s->avctx->mb_decision;
969 c->me_cmp= s->avctx->me_cmp;
970 c->mb_cmp= s->avctx->mb_cmp;
971 c->me_sub_cmp= s->avctx->me_sub_cmp;
972 c->pix_fmt = PIX_FMT_YUV420P;
973 c->time_base= s->avctx->time_base;
974 c->max_b_frames= s->max_b_frames;
975
976 if (avcodec_open(c, codec) < 0)
977 return -1;
978
979 for(i=0; i<s->max_b_frames+2; i++){
980 int ysize= c->width*c->height;
981 int csize= (c->width/2)*(c->height/2);
982 Picture pre_input, *pre_input_ptr= i ? s->input_picture[i-1] : s->next_picture_ptr;
983
984 avcodec_get_frame_defaults(&input[i]);
985 input[i].data[0]= av_malloc(ysize + 2*csize);
986 input[i].data[1]= input[i].data[0] + ysize;
987 input[i].data[2]= input[i].data[1] + csize;
988 input[i].linesize[0]= c->width;
989 input[i].linesize[1]=
990 input[i].linesize[2]= c->width/2;
991
992 if(pre_input_ptr && (!i || s->input_picture[i-1])) {
993 pre_input= *pre_input_ptr;
994
995 if(pre_input.type != FF_BUFFER_TYPE_SHARED && i) {
996 pre_input.data[0]+=INPLACE_OFFSET;
997 pre_input.data[1]+=INPLACE_OFFSET;
998 pre_input.data[2]+=INPLACE_OFFSET;
999 }
1000
1001 s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0], pre_input.data[0], pre_input.linesize[0], c->width, c->height);
1002 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);
1003 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);
1004 }
1005 }
1006
1007 for(j=0; j<s->max_b_frames+1; j++){
1008 int64_t rd=0;
1009
1010 if(!s->input_picture[j])
1011 break;
1012
1013 c->error[0]= c->error[1]= c->error[2]= 0;
1014
9701840b 1015 input[0].pict_type= FF_I_TYPE;
3ada94ba
BF
1016 input[0].quality= 1 * FF_QP2LAMBDA;
1017 out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[0]);
1018// rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT;
1019
1020 for(i=0; i<s->max_b_frames+1; i++){
1021 int is_p= i % (j+1) == j || i==s->max_b_frames;
1022
9701840b 1023 input[i+1].pict_type= is_p ? FF_P_TYPE : FF_B_TYPE;
3ada94ba
BF
1024 input[i+1].quality= is_p ? p_lambda : b_lambda;
1025 out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[i+1]);
1026 rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1027 }
1028
1029 /* get the delayed frames */
1030 while(out_size){
1031 out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);
1032 rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1033 }
1034
1035 rd += c->error[0] + c->error[1] + c->error[2];
1036
1037 if(rd < best_rd){
1038 best_rd= rd;
1039 best_b_count= j;
1040 }
1041 }
1042
1043 av_freep(&outbuf);
1044 avcodec_close(c);
1045 av_freep(&c);
1046
1047 for(i=0; i<s->max_b_frames+2; i++){
1048 av_freep(&input[i].data[0]);
1049 }
1050
1051 return best_b_count;
1052}
1053
1054static void select_input_picture(MpegEncContext *s){
1055 int i;
1056
1057 for(i=1; i<MAX_PICTURE_COUNT; i++)
1058 s->reordered_input_picture[i-1]= s->reordered_input_picture[i];
1059 s->reordered_input_picture[MAX_PICTURE_COUNT-1]= NULL;
1060
1061 /* set next picture type & ordering */
1062 if(s->reordered_input_picture[0]==NULL && s->input_picture[0]){
1063 if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture_ptr==NULL || s->intra_only){
1064 s->reordered_input_picture[0]= s->input_picture[0];
9701840b 1065 s->reordered_input_picture[0]->pict_type= FF_I_TYPE;
3ada94ba
BF
1066 s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1067 }else{
1068 int b_frames;
1069
1070 if(s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor){
1071 if(s->picture_in_gop_number < s->gop_size && skip_check(s, s->input_picture[0], s->next_picture_ptr)){
1072 //FIXME check that te gop check above is +-1 correct
1073//av_log(NULL, AV_LOG_DEBUG, "skip %p %"PRId64"\n", s->input_picture[0]->data[0], s->input_picture[0]->pts);
1074
1075 if(s->input_picture[0]->type == FF_BUFFER_TYPE_SHARED){
1076 for(i=0; i<4; i++)
1077 s->input_picture[0]->data[i]= NULL;
1078 s->input_picture[0]->type= 0;
1079 }else{
1080 assert( s->input_picture[0]->type==FF_BUFFER_TYPE_USER
1081 || s->input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1082
1083 s->avctx->release_buffer(s->avctx, (AVFrame*)s->input_picture[0]);
1084 }
1085
1086 emms_c();
1087 ff_vbv_update(s, 0);
1088
1089 goto no_output_pic;
1090 }
1091 }
1092
1093 if(s->flags&CODEC_FLAG_PASS2){
1094 for(i=0; i<s->max_b_frames+1; i++){
1095 int pict_num= s->input_picture[0]->display_picture_number + i;
1096
1097 if(pict_num >= s->rc_context.num_entries)
1098 break;
1099 if(!s->input_picture[i]){
9701840b 1100 s->rc_context.entry[pict_num-1].new_pict_type = FF_P_TYPE;
3ada94ba
BF
1101 break;
1102 }
1103
1104 s->input_picture[i]->pict_type=
1105 s->rc_context.entry[pict_num].new_pict_type;
1106 }
1107 }
1108
1109 if(s->avctx->b_frame_strategy==0){
1110 b_frames= s->max_b_frames;
1111 while(b_frames && !s->input_picture[b_frames]) b_frames--;
1112 }else if(s->avctx->b_frame_strategy==1){
1113 for(i=1; i<s->max_b_frames+1; i++){
1114 if(s->input_picture[i] && s->input_picture[i]->b_frame_score==0){
1115 s->input_picture[i]->b_frame_score=
1116 get_intra_count(s, s->input_picture[i ]->data[0],
1117 s->input_picture[i-1]->data[0], s->linesize) + 1;
1118 }
1119 }
1120 for(i=0; i<s->max_b_frames+1; i++){
1121 if(s->input_picture[i]==NULL || s->input_picture[i]->b_frame_score - 1 > s->mb_num/s->avctx->b_sensitivity) break;
1122 }
1123
1124 b_frames= FFMAX(0, i-1);
1125
1126 /* reset scores */
1127 for(i=0; i<b_frames+1; i++){
1128 s->input_picture[i]->b_frame_score=0;
1129 }
1130 }else if(s->avctx->b_frame_strategy==2){
1131 b_frames= estimate_best_b_count(s);
1132 }else{
1133 av_log(s->avctx, AV_LOG_ERROR, "illegal b frame strategy\n");
1134 b_frames=0;
1135 }
1136
1137 emms_c();
1138//static int b_count=0;
1139//b_count+= b_frames;
1140//av_log(s->avctx, AV_LOG_DEBUG, "b_frames: %d\n", b_count);
1141
1142 for(i= b_frames - 1; i>=0; i--){
1143 int type= s->input_picture[i]->pict_type;
9701840b 1144 if(type && type != FF_B_TYPE)
3ada94ba
BF
1145 b_frames= i;
1146 }
9701840b 1147 if(s->input_picture[b_frames]->pict_type == FF_B_TYPE && b_frames == s->max_b_frames){
3ada94ba
BF
1148 av_log(s->avctx, AV_LOG_ERROR, "warning, too many b frames in a row\n");
1149 }
1150
1151 if(s->picture_in_gop_number + b_frames >= s->gop_size){
1152 if((s->flags2 & CODEC_FLAG2_STRICT_GOP) && s->gop_size > s->picture_in_gop_number){
1153 b_frames= s->gop_size - s->picture_in_gop_number - 1;
1154 }else{
1155 if(s->flags & CODEC_FLAG_CLOSED_GOP)
1156 b_frames=0;
9701840b 1157 s->input_picture[b_frames]->pict_type= FF_I_TYPE;
3ada94ba
BF
1158 }
1159 }
1160
1161 if( (s->flags & CODEC_FLAG_CLOSED_GOP)
1162 && b_frames
9701840b 1163 && s->input_picture[b_frames]->pict_type== FF_I_TYPE)
3ada94ba
BF
1164 b_frames--;
1165
1166 s->reordered_input_picture[0]= s->input_picture[b_frames];
9701840b
AJ
1167 if(s->reordered_input_picture[0]->pict_type != FF_I_TYPE)
1168 s->reordered_input_picture[0]->pict_type= FF_P_TYPE;
3ada94ba
BF
1169 s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1170 for(i=0; i<b_frames; i++){
1171 s->reordered_input_picture[i+1]= s->input_picture[i];
9701840b 1172 s->reordered_input_picture[i+1]->pict_type= FF_B_TYPE;
3ada94ba
BF
1173 s->reordered_input_picture[i+1]->coded_picture_number= s->coded_picture_number++;
1174 }
1175 }
1176 }
1177no_output_pic:
1178 if(s->reordered_input_picture[0]){
9701840b 1179 s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=FF_B_TYPE ? 3 : 0;
3ada94ba 1180
8d2fc163 1181 ff_copy_picture(&s->new_picture, s->reordered_input_picture[0]);
3ada94ba
BF
1182
1183 if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_SHARED || s->avctx->rc_buffer_size){
1184 // input is a shared pix, so we can't modifiy it -> alloc a new one & ensure that the shared one is reuseable
1185
1186 int i= ff_find_unused_picture(s, 0);
1187 Picture *pic= &s->picture[i];
1188
1189 pic->reference = s->reordered_input_picture[0]->reference;
a4a750d3 1190 ff_alloc_picture(s, pic, 0);
3ada94ba
BF
1191
1192 /* mark us unused / free shared pic */
1193 if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_INTERNAL)
1194 s->avctx->release_buffer(s->avctx, (AVFrame*)s->reordered_input_picture[0]);
1195 for(i=0; i<4; i++)
1196 s->reordered_input_picture[0]->data[i]= NULL;
1197 s->reordered_input_picture[0]->type= 0;
1198
1199 copy_picture_attributes(s, (AVFrame*)pic, (AVFrame*)s->reordered_input_picture[0]);
1200
1201 s->current_picture_ptr= pic;
1202 }else{
1203 // input is not a shared pix -> reuse buffer for current_pix
1204
1205 assert( s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
1206 || s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1207
1208 s->current_picture_ptr= s->reordered_input_picture[0];
1209 for(i=0; i<4; i++){
1210 s->new_picture.data[i]+= INPLACE_OFFSET;
1211 }
1212 }
8d2fc163 1213 ff_copy_picture(&s->current_picture, s->current_picture_ptr);
3ada94ba
BF
1214
1215 s->picture_number= s->new_picture.display_picture_number;
1216//printf("dpn:%d\n", s->picture_number);
1217 }else{
1218 memset(&s->new_picture, 0, sizeof(Picture));
1219 }
1220}
1221
1222int MPV_encode_picture(AVCodecContext *avctx,
1223 unsigned char *buf, int buf_size, void *data)
1224{
1225 MpegEncContext *s = avctx->priv_data;
1226 AVFrame *pic_arg = data;
1227 int i, stuffing_count;
1228
1229 for(i=0; i<avctx->thread_count; i++){
1230 int start_y= s->thread_context[i]->start_mb_y;
1231 int end_y= s->thread_context[i]-> end_mb_y;
1232 int h= s->mb_height;
1233 uint8_t *start= buf + (size_t)(((int64_t) buf_size)*start_y/h);
1234 uint8_t *end = buf + (size_t)(((int64_t) buf_size)* end_y/h);
1235
1236 init_put_bits(&s->thread_context[i]->pb, start, end - start);
1237 }
1238
1239 s->picture_in_gop_number++;
1240
1241 if(load_input_picture(s, pic_arg) < 0)
1242 return -1;
1243
1244 select_input_picture(s);
1245
1246 /* output? */
1247 if(s->new_picture.data[0]){
1248 s->pict_type= s->new_picture.pict_type;
1249//emms_c();
1250//printf("qs:%f %f %d\n", s->new_picture.quality, s->current_picture.quality, s->qscale);
1251 MPV_frame_start(s, avctx);
1252vbv_retry:
1253 if (encode_picture(s, s->picture_number) < 0)
1254 return -1;
1255
3ada94ba
BF
1256 avctx->header_bits = s->header_bits;
1257 avctx->mv_bits = s->mv_bits;
1258 avctx->misc_bits = s->misc_bits;
1259 avctx->i_tex_bits = s->i_tex_bits;
1260 avctx->p_tex_bits = s->p_tex_bits;
1261 avctx->i_count = s->i_count;
1262 avctx->p_count = s->mb_num - s->i_count - s->skip_count; //FIXME f/b_count in avctx
1263 avctx->skip_count = s->skip_count;
1264
1265 MPV_frame_end(s);
1266
49fb20cb 1267 if (CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG)
3ada94ba
BF
1268 ff_mjpeg_encode_picture_trailer(s);
1269
1270 if(avctx->rc_buffer_size){
1271 RateControlContext *rcc= &s->rc_context;
3bff4d8b 1272 int max_size= rcc->buffer_index * avctx->rc_max_available_vbv_use;
3ada94ba
BF
1273
1274 if(put_bits_count(&s->pb) > max_size && s->lambda < s->avctx->lmax){
1275 s->next_lambda= FFMAX(s->lambda+1, s->lambda*(s->qscale+1) / s->qscale);
1276 if(s->adaptive_quant){
1277 int i;
1278 for(i=0; i<s->mb_height*s->mb_stride; i++)
1279 s->lambda_table[i]= FFMAX(s->lambda_table[i]+1, s->lambda_table[i]*(s->qscale+1) / s->qscale);
1280 }
1281 s->mb_skipped = 0; //done in MPV_frame_start()
9701840b 1282 if(s->pict_type==FF_P_TYPE){ //done in encode_picture() so we must undo it
3ada94ba
BF
1283 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
1284 s->no_rounding ^= 1;
1285 }
9701840b 1286 if(s->pict_type!=FF_B_TYPE){
3ada94ba
BF
1287 s->time_base= s->last_time_base;
1288 s->last_non_b_time= s->time - s->pp_time;
1289 }
1290// av_log(NULL, AV_LOG_ERROR, "R:%d ", s->next_lambda);
1291 for(i=0; i<avctx->thread_count; i++){
1292 PutBitContext *pb= &s->thread_context[i]->pb;
1293 init_put_bits(pb, pb->buf, pb->buf_end - pb->buf);
1294 }
1295 goto vbv_retry;
1296 }
1297
1298 assert(s->avctx->rc_max_rate);
1299 }
1300
1301 if(s->flags&CODEC_FLAG_PASS1)
1302 ff_write_pass1_stats(s);
1303
1304 for(i=0; i<4; i++){
1305 s->current_picture_ptr->error[i]= s->current_picture.error[i];
1306 avctx->error[i] += s->current_picture_ptr->error[i];
1307 }
1308
1309 if(s->flags&CODEC_FLAG_PASS1)
1310 assert(avctx->header_bits + avctx->mv_bits + avctx->misc_bits + avctx->i_tex_bits + avctx->p_tex_bits == put_bits_count(&s->pb));
1311 flush_put_bits(&s->pb);
1312 s->frame_bits = put_bits_count(&s->pb);
1313
1314 stuffing_count= ff_vbv_update(s, s->frame_bits);
1315 if(stuffing_count){
1316 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < stuffing_count + 50){
1317 av_log(s->avctx, AV_LOG_ERROR, "stuffing too large\n");
1318 return -1;
1319 }
1320
1321 switch(s->codec_id){
1322 case CODEC_ID_MPEG1VIDEO:
1323 case CODEC_ID_MPEG2VIDEO:
1324 while(stuffing_count--){
1325 put_bits(&s->pb, 8, 0);
1326 }
1327 break;
1328 case CODEC_ID_MPEG4:
1329 put_bits(&s->pb, 16, 0);
1330 put_bits(&s->pb, 16, 0x1C3);
1331 stuffing_count -= 4;
1332 while(stuffing_count--){
1333 put_bits(&s->pb, 8, 0xFF);
1334 }
1335 break;
1336 default:
1337 av_log(s->avctx, AV_LOG_ERROR, "vbv buffer overflow\n");
1338 }
1339 flush_put_bits(&s->pb);
1340 s->frame_bits = put_bits_count(&s->pb);
1341 }
1342
1343 /* update mpeg1/2 vbv_delay for CBR */
1344 if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && s->out_format == FMT_MPEG1
1345 && 90000LL * (avctx->rc_buffer_size-1) <= s->avctx->rc_max_rate*0xFFFFLL){
4601e76a
MN
1346 int vbv_delay, min_delay;
1347 double inbits = s->avctx->rc_max_rate*av_q2d(s->avctx->time_base);
1348 int minbits= s->frame_bits - 8*(s->vbv_delay_ptr - s->pb.buf - 1);
1349 double bits = s->rc_context.buffer_index + minbits - inbits;
1350
1351 if(bits<0)
1352 av_log(s->avctx, AV_LOG_ERROR, "Internal error, negative bits\n");
3ada94ba
BF
1353
1354 assert(s->repeat_first_field==0);
1355
4601e76a
MN
1356 vbv_delay= bits * 90000 / s->avctx->rc_max_rate;
1357 min_delay= (minbits * 90000LL + s->avctx->rc_max_rate - 1)/ s->avctx->rc_max_rate;
1358
1359 vbv_delay= FFMAX(vbv_delay, min_delay);
1360
3ada94ba
BF
1361 assert(vbv_delay < 0xFFFF);
1362
1363 s->vbv_delay_ptr[0] &= 0xF8;
1364 s->vbv_delay_ptr[0] |= vbv_delay>>13;
1365 s->vbv_delay_ptr[1] = vbv_delay>>5;
1366 s->vbv_delay_ptr[2] &= 0x07;
1367 s->vbv_delay_ptr[2] |= vbv_delay<<3;
1368 }
1369 s->total_bits += s->frame_bits;
1370 avctx->frame_bits = s->frame_bits;
1371 }else{
fb53b4a0 1372 assert((put_bits_ptr(&s->pb) == s->pb.buf));
3ada94ba
BF
1373 s->frame_bits=0;
1374 }
1375 assert((s->frame_bits&7)==0);
1376
1377 return s->frame_bits/8;
1378}
1379
1380static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold)
1381{
1382 static const char tab[64]=
1383 {3,2,2,1,1,1,1,1,
1384 1,1,1,1,1,1,1,1,
1385 1,1,1,1,1,1,1,1,
1386 0,0,0,0,0,0,0,0,
1387 0,0,0,0,0,0,0,0,
1388 0,0,0,0,0,0,0,0,
1389 0,0,0,0,0,0,0,0,
1390 0,0,0,0,0,0,0,0};
1391 int score=0;
1392 int run=0;
1393 int i;
1394 DCTELEM *block= s->block[n];
1395 const int last_index= s->block_last_index[n];
1396 int skip_dc;
1397
1398 if(threshold<0){
1399 skip_dc=0;
1400 threshold= -threshold;
1401 }else
1402 skip_dc=1;
1403
bd107136 1404 /* Are all we could set to zero already zero? */
3ada94ba
BF
1405 if(last_index<=skip_dc - 1) return;
1406
1407 for(i=0; i<=last_index; i++){
1408 const int j = s->intra_scantable.permutated[i];
1409 const int level = FFABS(block[j]);
1410 if(level==1){
1411 if(skip_dc && i==0) continue;
1412 score+= tab[run];
1413 run=0;
1414 }else if(level>1){
1415 return;
1416 }else{
1417 run++;
1418 }
1419 }
1420 if(score >= threshold) return;
1421 for(i=skip_dc; i<=last_index; i++){
1422 const int j = s->intra_scantable.permutated[i];
1423 block[j]=0;
1424 }
1425 if(block[0]) s->block_last_index[n]= 0;
1426 else s->block_last_index[n]= -1;
1427}
1428
1429static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1430{
1431 int i;
1432 const int maxlevel= s->max_qcoeff;
1433 const int minlevel= s->min_qcoeff;
1434 int overflow=0;
1435
1436 if(s->mb_intra){
1437 i=1; //skip clipping of intra dc
1438 }else
1439 i=0;
1440
1441 for(;i<=last_index; i++){
1442 const int j= s->intra_scantable.permutated[i];
1443 int level = block[j];
1444
1445 if (level>maxlevel){
1446 level=maxlevel;
1447 overflow++;
1448 }else if(level<minlevel){
1449 level=minlevel;
1450 overflow++;
1451 }
1452
1453 block[j]= level;
1454 }
1455
1456 if(overflow && s->avctx->mb_decision == FF_MB_DECISION_SIMPLE)
1457 av_log(s->avctx, AV_LOG_INFO, "warning, clipping %d dct coefficients to %d..%d\n", overflow, minlevel, maxlevel);
1458}
1459
f073a393 1460static void get_visual_weight(int16_t *weight, uint8_t *ptr, int stride){
3ada94ba
BF
1461 int x, y;
1462//FIXME optimize
1463 for(y=0; y<8; y++){
1464 for(x=0; x<8; x++){
1465 int x2, y2;
1466 int sum=0;
1467 int sqr=0;
1468 int count=0;
1469
1470 for(y2= FFMAX(y-1, 0); y2 < FFMIN(8, y+2); y2++){
1471 for(x2= FFMAX(x-1, 0); x2 < FFMIN(8, x+2); x2++){
1472 int v= ptr[x2 + y2*stride];
1473 sum += v;
1474 sqr += v*v;
1475 count++;
1476 }
1477 }
1478 weight[x + 8*y]= (36*ff_sqrt(count*sqr - sum*sum)) / count;
1479 }
1480 }
1481}
1482
1483static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count)
1484{
1485 int16_t weight[8][64];
1486 DCTELEM orig[8][64];
1487 const int mb_x= s->mb_x;
1488 const int mb_y= s->mb_y;
1489 int i;
1490 int skip_dct[8];
1491 int dct_offset = s->linesize*8; //default for progressive frames
1492 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1493 int wrap_y, wrap_c;
1494
1495 for(i=0; i<mb_block_count; i++) skip_dct[i]=s->skipdct;
1496
1497 if(s->adaptive_quant){
1498 const int last_qp= s->qscale;
1499 const int mb_xy= mb_x + mb_y*s->mb_stride;
1500
1501 s->lambda= s->lambda_table[mb_xy];
1502 update_qscale(s);
1503
1504 if(!(s->flags&CODEC_FLAG_QP_RD)){
1505 s->qscale= s->current_picture_ptr->qscale_table[mb_xy];
1506 s->dquant= s->qscale - last_qp;
1507
1508 if(s->out_format==FMT_H263){
1509 s->dquant= av_clip(s->dquant, -2, 2);
1510
1511 if(s->codec_id==CODEC_ID_MPEG4){
1512 if(!s->mb_intra){
9701840b 1513 if(s->pict_type == FF_B_TYPE){
3ada94ba
BF
1514 if(s->dquant&1 || s->mv_dir&MV_DIRECT)
1515 s->dquant= 0;
1516 }
1517 if(s->mv_type==MV_TYPE_8X8)
1518 s->dquant=0;
1519 }
1520 }
1521 }
1522 }
1523 ff_set_qscale(s, last_qp + s->dquant);
1524 }else if(s->flags&CODEC_FLAG_QP_RD)
1525 ff_set_qscale(s, s->qscale + s->dquant);
1526
1527 wrap_y = s->linesize;
1528 wrap_c = s->uvlinesize;
1529 ptr_y = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
1530 ptr_cb = s->new_picture.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1531 ptr_cr = s->new_picture.data[2] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1532
1533 if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
1534 uint8_t *ebuf= s->edge_emu_buffer + 32;
1535 ff_emulated_edge_mc(ebuf , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width , s->height);
1536 ptr_y= ebuf;
1537 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);
1538 ptr_cb= ebuf+18*wrap_y;
1539 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);
1540 ptr_cr= ebuf+18*wrap_y+8;
1541 }
1542
1543 if (s->mb_intra) {
1544 if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1545 int progressive_score, interlaced_score;
1546
1547 s->interlaced_dct=0;
1548 progressive_score= s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y, 8)
1549 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y*8, NULL, wrap_y, 8) - 400;
1550
1551 if(progressive_score > 0){
1552 interlaced_score = s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y*2, 8)
1553 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y , NULL, wrap_y*2, 8);
1554 if(progressive_score > interlaced_score){
1555 s->interlaced_dct=1;
1556
1557 dct_offset= wrap_y;
1558 wrap_y<<=1;
1559 if (s->chroma_format == CHROMA_422)
1560 wrap_c<<=1;
1561 }
1562 }
1563 }
1564
1565 s->dsp.get_pixels(s->block[0], ptr_y , wrap_y);
1566 s->dsp.get_pixels(s->block[1], ptr_y + 8, wrap_y);
1567 s->dsp.get_pixels(s->block[2], ptr_y + dct_offset , wrap_y);
1568 s->dsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y);
1569
1570 if(s->flags&CODEC_FLAG_GRAY){
1571 skip_dct[4]= 1;
1572 skip_dct[5]= 1;
1573 }else{
1574 s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c);
1575 s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c);
1576 if(!s->chroma_y_shift){ /* 422 */
1577 s->dsp.get_pixels(s->block[6], ptr_cb + (dct_offset>>1), wrap_c);
1578 s->dsp.get_pixels(s->block[7], ptr_cr + (dct_offset>>1), wrap_c);
1579 }
1580 }
1581 }else{
1582 op_pixels_func (*op_pix)[4];
1583 qpel_mc_func (*op_qpix)[16];
1584 uint8_t *dest_y, *dest_cb, *dest_cr;
1585
1586 dest_y = s->dest[0];
1587 dest_cb = s->dest[1];
1588 dest_cr = s->dest[2];
1589
9701840b 1590 if ((!s->no_rounding) || s->pict_type==FF_B_TYPE){
3ada94ba
BF
1591 op_pix = s->dsp.put_pixels_tab;
1592 op_qpix= s->dsp.put_qpel_pixels_tab;
1593 }else{
1594 op_pix = s->dsp.put_no_rnd_pixels_tab;
1595 op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab;
1596 }
1597
1598 if (s->mv_dir & MV_DIR_FORWARD) {
1599 MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix);
1600 op_pix = s->dsp.avg_pixels_tab;
1601 op_qpix= s->dsp.avg_qpel_pixels_tab;
1602 }
1603 if (s->mv_dir & MV_DIR_BACKWARD) {
1604 MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix);
1605 }
1606
1607 if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1608 int progressive_score, interlaced_score;
1609
1610 s->interlaced_dct=0;
1611 progressive_score= s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y, 8)
1612 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y*8, ptr_y + wrap_y*8, wrap_y, 8) - 400;
1613
1614 if(s->avctx->ildct_cmp == FF_CMP_VSSE) progressive_score -= 400;
1615
1616 if(progressive_score>0){
1617 interlaced_score = s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y*2, 8)
1618 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y , ptr_y + wrap_y , wrap_y*2, 8);
1619
1620 if(progressive_score > interlaced_score){
1621 s->interlaced_dct=1;
1622
1623 dct_offset= wrap_y;
1624 wrap_y<<=1;
1625 if (s->chroma_format == CHROMA_422)
1626 wrap_c<<=1;
1627 }
1628 }
1629 }
1630
1631 s->dsp.diff_pixels(s->block[0], ptr_y , dest_y , wrap_y);
1632 s->dsp.diff_pixels(s->block[1], ptr_y + 8, dest_y + 8, wrap_y);
1633 s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset , dest_y + dct_offset , wrap_y);
1634 s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y);
1635
1636 if(s->flags&CODEC_FLAG_GRAY){
1637 skip_dct[4]= 1;
1638 skip_dct[5]= 1;
1639 }else{
1640 s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
1641 s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
1642 if(!s->chroma_y_shift){ /* 422 */
1643 s->dsp.diff_pixels(s->block[6], ptr_cb + (dct_offset>>1), dest_cb + (dct_offset>>1), wrap_c);
1644 s->dsp.diff_pixels(s->block[7], ptr_cr + (dct_offset>>1), dest_cr + (dct_offset>>1), wrap_c);
1645 }
1646 }
1647 /* pre quantization */
1648 if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){
1649 //FIXME optimize
1650 if(s->dsp.sad[1](NULL, ptr_y , dest_y , wrap_y, 8) < 20*s->qscale) skip_dct[0]= 1;
1651 if(s->dsp.sad[1](NULL, ptr_y + 8, dest_y + 8, wrap_y, 8) < 20*s->qscale) skip_dct[1]= 1;
1652 if(s->dsp.sad[1](NULL, ptr_y +dct_offset , dest_y +dct_offset , wrap_y, 8) < 20*s->qscale) skip_dct[2]= 1;
1653 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;
1654 if(s->dsp.sad[1](NULL, ptr_cb , dest_cb , wrap_c, 8) < 20*s->qscale) skip_dct[4]= 1;
1655 if(s->dsp.sad[1](NULL, ptr_cr , dest_cr , wrap_c, 8) < 20*s->qscale) skip_dct[5]= 1;
1656 if(!s->chroma_y_shift){ /* 422 */
1657 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;
1658 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;
1659 }
1660 }
1661 }
1662
1663 if(s->avctx->quantizer_noise_shaping){
f073a393
DB
1664 if(!skip_dct[0]) get_visual_weight(weight[0], ptr_y , wrap_y);
1665 if(!skip_dct[1]) get_visual_weight(weight[1], ptr_y + 8, wrap_y);
1666 if(!skip_dct[2]) get_visual_weight(weight[2], ptr_y + dct_offset , wrap_y);
1667 if(!skip_dct[3]) get_visual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y);
1668 if(!skip_dct[4]) get_visual_weight(weight[4], ptr_cb , wrap_c);
1669 if(!skip_dct[5]) get_visual_weight(weight[5], ptr_cr , wrap_c);
3ada94ba 1670 if(!s->chroma_y_shift){ /* 422 */
f073a393
DB
1671 if(!skip_dct[6]) get_visual_weight(weight[6], ptr_cb + (dct_offset>>1), wrap_c);
1672 if(!skip_dct[7]) get_visual_weight(weight[7], ptr_cr + (dct_offset>>1), wrap_c);
3ada94ba
BF
1673 }
1674 memcpy(orig[0], s->block[0], sizeof(DCTELEM)*64*mb_block_count);
1675 }
1676
1677 /* DCT & quantize */
1678 assert(s->out_format!=FMT_MJPEG || s->qscale==8);
1679 {
1680 for(i=0;i<mb_block_count;i++) {
1681 if(!skip_dct[i]){
1682 int overflow;
1683 s->block_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow);
1684 // FIXME we could decide to change to quantizer instead of clipping
1685 // JS: I don't think that would be a good idea it could lower quality instead
1686 // of improve it. Just INTRADC clipping deserves changes in quantizer
1687 if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1688 }else
1689 s->block_last_index[i]= -1;
1690 }
1691 if(s->avctx->quantizer_noise_shaping){
1692 for(i=0;i<mb_block_count;i++) {
1693 if(!skip_dct[i]){
1694 s->block_last_index[i] = dct_quantize_refine(s, s->block[i], weight[i], orig[i], i, s->qscale);
1695 }
1696 }
1697 }
1698
1699 if(s->luma_elim_threshold && !s->mb_intra)
1700 for(i=0; i<4; i++)
1701 dct_single_coeff_elimination(s, i, s->luma_elim_threshold);
1702 if(s->chroma_elim_threshold && !s->mb_intra)
1703 for(i=4; i<mb_block_count; i++)
1704 dct_single_coeff_elimination(s, i, s->chroma_elim_threshold);
1705
1706 if(s->flags & CODEC_FLAG_CBP_RD){
1707 for(i=0;i<mb_block_count;i++) {
1708 if(s->block_last_index[i] == -1)
1709 s->coded_score[i]= INT_MAX/256;
1710 }
1711 }
1712 }
1713
1714 if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
1715 s->block_last_index[4]=
1716 s->block_last_index[5]= 0;
1717 s->block[4][0]=
1718 s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale;
1719 }
1720
1721 //non c quantize code returns incorrect block_last_index FIXME
1722 if(s->alternate_scan && s->dct_quantize != dct_quantize_c){
1723 for(i=0; i<mb_block_count; i++){
1724 int j;
1725 if(s->block_last_index[i]>0){
1726 for(j=63; j>0; j--){
1727 if(s->block[i][ s->intra_scantable.permutated[j] ]) break;
1728 }
1729 s->block_last_index[i]= j;
1730 }
1731 }
1732 }
1733
1734 /* huffman encode */
1735 switch(s->codec_id){ //FIXME funct ptr could be slightly faster
1736 case CODEC_ID_MPEG1VIDEO:
1737 case CODEC_ID_MPEG2VIDEO:
49fb20cb 1738 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
56be950a
AJ
1739 mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1740 break;
3ada94ba 1741 case CODEC_ID_MPEG4:
49fb20cb 1742 if (CONFIG_MPEG4_ENCODER)
674eeb5f
AJ
1743 mpeg4_encode_mb(s, s->block, motion_x, motion_y);
1744 break;
3ada94ba
BF
1745 case CODEC_ID_MSMPEG4V2:
1746 case CODEC_ID_MSMPEG4V3:
1747 case CODEC_ID_WMV1:
49fb20cb 1748 if (CONFIG_MSMPEG4_ENCODER)
3ada94ba
BF
1749 msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1750 break;
1751 case CODEC_ID_WMV2:
49fb20cb 1752 if (CONFIG_WMV2_ENCODER)
3ada94ba
BF
1753 ff_wmv2_encode_mb(s, s->block, motion_x, motion_y);
1754 break;
1755 case CODEC_ID_H261:
49fb20cb 1756 if (CONFIG_H261_ENCODER)
3ada94ba
BF
1757 ff_h261_encode_mb(s, s->block, motion_x, motion_y);
1758 break;
1759 case CODEC_ID_H263:
1760 case CODEC_ID_H263P:
1761 case CODEC_ID_FLV1:
1762 case CODEC_ID_RV10:
1763 case CODEC_ID_RV20:
0bd48530 1764 if (CONFIG_H263_ENCODER)
674eeb5f
AJ
1765 h263_encode_mb(s, s->block, motion_x, motion_y);
1766 break;
3ada94ba 1767 case CODEC_ID_MJPEG:
49fb20cb 1768 if (CONFIG_MJPEG_ENCODER)
3ada94ba
BF
1769 ff_mjpeg_encode_mb(s, s->block);
1770 break;
1771 default:
1772 assert(0);
1773 }
1774}
1775
1776static av_always_inline void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
1777{
1778 if (s->chroma_format == CHROMA_420) encode_mb_internal(s, motion_x, motion_y, 8, 6);
1779 else encode_mb_internal(s, motion_x, motion_y, 16, 8);
1780}
1781
3ada94ba
BF
1782static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1783 int i;
1784
1785 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1786
1787 /* mpeg1 */
1788 d->mb_skip_run= s->mb_skip_run;
1789 for(i=0; i<3; i++)
1790 d->last_dc[i]= s->last_dc[i];
1791
1792 /* statistics */
1793 d->mv_bits= s->mv_bits;
1794 d->i_tex_bits= s->i_tex_bits;
1795 d->p_tex_bits= s->p_tex_bits;
1796 d->i_count= s->i_count;
1797 d->f_count= s->f_count;
1798 d->b_count= s->b_count;
1799 d->skip_count= s->skip_count;
1800 d->misc_bits= s->misc_bits;
1801 d->last_bits= 0;
1802
1803 d->mb_skipped= 0;
1804 d->qscale= s->qscale;
1805 d->dquant= s->dquant;
9f175aa0
MN
1806
1807 d->esc3_level_length= s->esc3_level_length;
3ada94ba
BF
1808}
1809
1810static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1811 int i;
1812
1813 memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
1814 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1815
1816 /* mpeg1 */
1817 d->mb_skip_run= s->mb_skip_run;
1818 for(i=0; i<3; i++)
1819 d->last_dc[i]= s->last_dc[i];
1820
1821 /* statistics */
1822 d->mv_bits= s->mv_bits;
1823 d->i_tex_bits= s->i_tex_bits;
1824 d->p_tex_bits= s->p_tex_bits;
1825 d->i_count= s->i_count;
1826 d->f_count= s->f_count;
1827 d->b_count= s->b_count;
1828 d->skip_count= s->skip_count;
1829 d->misc_bits= s->misc_bits;
1830
1831 d->mb_intra= s->mb_intra;
1832 d->mb_skipped= s->mb_skipped;
1833 d->mv_type= s->mv_type;
1834 d->mv_dir= s->mv_dir;
1835 d->pb= s->pb;
1836 if(s->data_partitioning){
1837 d->pb2= s->pb2;
1838 d->tex_pb= s->tex_pb;
1839 }
1840 d->block= s->block;
1841 for(i=0; i<8; i++)
1842 d->block_last_index[i]= s->block_last_index[i];
1843 d->interlaced_dct= s->interlaced_dct;
1844 d->qscale= s->qscale;
9f175aa0
MN
1845
1846 d->esc3_level_length= s->esc3_level_length;
3ada94ba
BF
1847}
1848
1849static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type,
1850 PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
1851 int *dmin, int *next_block, int motion_x, int motion_y)
1852{
1853 int score;
1854 uint8_t *dest_backup[3];
1855
1856 copy_context_before_encode(s, backup, type);
1857
1858 s->block= s->blocks[*next_block];
1859 s->pb= pb[*next_block];
1860 if(s->data_partitioning){
1861 s->pb2 = pb2 [*next_block];
1862 s->tex_pb= tex_pb[*next_block];
1863 }
1864
1865 if(*next_block){
1866 memcpy(dest_backup, s->dest, sizeof(s->dest));
1867 s->dest[0] = s->rd_scratchpad;
1868 s->dest[1] = s->rd_scratchpad + 16*s->linesize;
1869 s->dest[2] = s->rd_scratchpad + 16*s->linesize + 8;
1870 assert(s->linesize >= 32); //FIXME
1871 }
1872
1873 encode_mb(s, motion_x, motion_y);
1874
1875 score= put_bits_count(&s->pb);
1876 if(s->data_partitioning){
1877 score+= put_bits_count(&s->pb2);
1878 score+= put_bits_count(&s->tex_pb);
1879 }
1880
1881 if(s->avctx->mb_decision == FF_MB_DECISION_RD){
1882 MPV_decode_mb(s, s->block);
1883
1884 score *= s->lambda2;
1885 score += sse_mb(s) << FF_LAMBDA_SHIFT;
1886 }
1887
1888 if(*next_block){
1889 memcpy(s->dest, dest_backup, sizeof(s->dest));
1890 }
1891
1892 if(score<*dmin){
1893 *dmin= score;
1894 *next_block^=1;
1895
1896 copy_context_after_encode(best, s, type);
1897 }
1898}
1899
1900static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){
1901 uint32_t *sq = ff_squareTbl + 256;
1902 int acc=0;
1903 int x,y;
1904
1905 if(w==16 && h==16)
1906 return s->dsp.sse[0](NULL, src1, src2, stride, 16);
1907 else if(w==8 && h==8)
1908 return s->dsp.sse[1](NULL, src1, src2, stride, 8);
1909
1910 for(y=0; y<h; y++){
1911 for(x=0; x<w; x++){
1912 acc+= sq[src1[x + y*stride] - src2[x + y*stride]];
1913 }
1914 }
1915
1916 assert(acc>=0);
1917
1918 return acc;
1919}
1920
1921static int sse_mb(MpegEncContext *s){
1922 int w= 16;
1923 int h= 16;
1924
1925 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
1926 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
1927
1928 if(w==16 && h==16)
1929 if(s->avctx->mb_cmp == FF_CMP_NSSE){
1930 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)
1931 +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)
1932 +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);
1933 }else{
1934 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)
1935 +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)
1936 +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);
1937 }
1938 else
1939 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)
1940 +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)
1941 +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);
1942}
1943
1944static int pre_estimate_motion_thread(AVCodecContext *c, void *arg){
3a84713a 1945 MpegEncContext *s= *(void**)arg;
3ada94ba
BF
1946
1947
1948 s->me.pre_pass=1;
1949 s->me.dia_size= s->avctx->pre_dia_size;
1950 s->first_slice_line=1;
1951 for(s->mb_y= s->end_mb_y-1; s->mb_y >= s->start_mb_y; s->mb_y--) {
1952 for(s->mb_x=s->mb_width-1; s->mb_x >=0 ;s->mb_x--) {
1953 ff_pre_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1954 }
1955 s->first_slice_line=0;
1956 }
1957
1958 s->me.pre_pass=0;
1959
1960 return 0;
1961}
1962
1963static int estimate_motion_thread(AVCodecContext *c, void *arg){
3a84713a 1964 MpegEncContext *s= *(void**)arg;
3ada94ba
BF
1965
1966 ff_check_alignment();
1967
1968 s->me.dia_size= s->avctx->dia_size;
1969 s->first_slice_line=1;
1970 for(s->mb_y= s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
1971 s->mb_x=0; //for block init below
1972 ff_init_block_index(s);
1973 for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {
1974 s->block_index[0]+=2;
1975 s->block_index[1]+=2;
1976 s->block_index[2]+=2;
1977 s->block_index[3]+=2;
1978
1979 /* compute motion vector & mb_type and store in context */
9701840b 1980 if(s->pict_type==FF_B_TYPE)
3ada94ba
BF
1981 ff_estimate_b_frame_motion(s, s->mb_x, s->mb_y);
1982 else
1983 ff_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1984 }
1985 s->first_slice_line=0;
1986 }
1987 return 0;
1988}
1989
1990static int mb_var_thread(AVCodecContext *c, void *arg){
3a84713a 1991 MpegEncContext *s= *(void**)arg;
3ada94ba
BF
1992 int mb_x, mb_y;
1993
1994 ff_check_alignment();
1995
1996 for(mb_y=s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
1997 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
1998 int xx = mb_x * 16;
1999 int yy = mb_y * 16;
2000 uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
2001 int varc;
2002 int sum = s->dsp.pix_sum(pix, s->linesize);
2003
2004 varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
2005
2006 s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
2007 s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
2008 s->me.mb_var_sum_temp += varc;
2009 }
2010 }
2011 return 0;
2012}
2013
2014static void write_slice_end(MpegEncContext *s){
49fb20cb 2015 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4){
3ada94ba
BF
2016 if(s->partitioned_frame){
2017 ff_mpeg4_merge_partitions(s);
2018 }
2019
2020 ff_mpeg4_stuffing(&s->pb);
49fb20cb 2021 }else if(CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG){
3ada94ba
BF
2022 ff_mjpeg_encode_stuffing(&s->pb);
2023 }
2024
2025 align_put_bits(&s->pb);
2026 flush_put_bits(&s->pb);
2027
2028 if((s->flags&CODEC_FLAG_PASS1) && !s->partitioned_frame)
2029 s->misc_bits+= get_bits_diff(s);
2030}
2031
2032static int encode_thread(AVCodecContext *c, void *arg){
3a84713a 2033 MpegEncContext *s= *(void**)arg;
3ada94ba 2034 int mb_x, mb_y, pdif = 0;
ec7e2582 2035 int chr_h= 16>>s->chroma_y_shift;
3ada94ba
BF
2036 int i, j;
2037 MpegEncContext best_s, backup_s;
2038 uint8_t bit_buf[2][MAX_MB_BYTES];
2039 uint8_t bit_buf2[2][MAX_MB_BYTES];
2040 uint8_t bit_buf_tex[2][MAX_MB_BYTES];
2041 PutBitContext pb[2], pb2[2], tex_pb[2];
2042//printf("%d->%d\n", s->resync_mb_y, s->end_mb_y);
2043
2044 ff_check_alignment();
2045
2046 for(i=0; i<2; i++){
2047 init_put_bits(&pb [i], bit_buf [i], MAX_MB_BYTES);
2048 init_put_bits(&pb2 [i], bit_buf2 [i], MAX_MB_BYTES);
2049 init_put_bits(&tex_pb[i], bit_buf_tex[i], MAX_MB_BYTES);
2050 }
2051
2052 s->last_bits= put_bits_count(&s->pb);
2053 s->mv_bits=0;
2054 s->misc_bits=0;
2055 s->i_tex_bits=0;
2056 s->p_tex_bits=0;
2057 s->i_count=0;
2058 s->f_count=0;
2059 s->b_count=0;
2060 s->skip_count=0;
2061
2062 for(i=0; i<3; i++){
2063 /* init last dc values */
2064 /* note: quant matrix value (8) is implied here */
2065 s->last_dc[i] = 128 << s->intra_dc_precision;
2066
2067 s->current_picture.error[i] = 0;
2068 }
2069 s->mb_skip_run = 0;
2070 memset(s->last_mv, 0, sizeof(s->last_mv));
2071
2072 s->last_mv_dir = 0;
2073
2074 switch(s->codec_id){
2075 case CODEC_ID_H263:
2076 case CODEC_ID_H263P:
2077 case CODEC_ID_FLV1:
0bd48530 2078 if (CONFIG_H263_ENCODER)
674eeb5f 2079 s->gob_index = ff_h263_get_gob_height(s);
3ada94ba
BF
2080 break;
2081 case CODEC_ID_MPEG4:
49fb20cb 2082 if(CONFIG_MPEG4_ENCODER && s->partitioned_frame)
3ada94ba
BF
2083 ff_mpeg4_init_partitions(s);
2084 break;
2085 }
2086
2087 s->resync_mb_x=0;
2088 s->resync_mb_y=0;
2089 s->first_slice_line = 1;
2090 s->ptr_lastgob = s->pb.buf;
2091 for(mb_y= s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2092// printf("row %d at %X\n", s->mb_y, (int)s);
2093 s->mb_x=0;
2094 s->mb_y= mb_y;
2095
2096 ff_set_qscale(s, s->qscale);
2097 ff_init_block_index(s);
2098
2099 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2100 int xy= mb_y*s->mb_stride + mb_x; // removed const, H261 needs to adjust this
2101 int mb_type= s->mb_type[xy];
2102// int d;
2103 int dmin= INT_MAX;
2104 int dir;
2105
2106 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < MAX_MB_BYTES){
2107 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2108 return -1;
2109 }
2110 if(s->data_partitioning){
2111 if( s->pb2 .buf_end - s->pb2 .buf - (put_bits_count(&s-> pb2)>>3) < MAX_MB_BYTES
2112 || s->tex_pb.buf_end - s->tex_pb.buf - (put_bits_count(&s->tex_pb )>>3) < MAX_MB_BYTES){
2113 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2114 return -1;
2115 }
2116 }
2117
2118 s->mb_x = mb_x;
2119 s->mb_y = mb_y; // moved into loop, can get changed by H.261
2120 ff_update_block_index(s);
2121
49fb20cb 2122 if(CONFIG_H261_ENCODER && s->codec_id == CODEC_ID_H261){
3ada94ba
BF
2123 ff_h261_reorder_mb_index(s);
2124 xy= s->mb_y*s->mb_stride + s->mb_x;
2125 mb_type= s->mb_type[xy];
2126 }
2127
2128 /* write gob / video packet header */
2129 if(s->rtp_mode){
2130 int current_packet_size, is_gob_start;
2131
2132 current_packet_size= ((put_bits_count(&s->pb)+7)>>3) - (s->ptr_lastgob - s->pb.buf);
2133
2134 is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0;
2135
2136 if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1;
2137
2138 switch(s->codec_id){
2139 case CODEC_ID_H263:
2140 case CODEC_ID_H263P:
2141 if(!s->h263_slice_structured)
2142 if(s->mb_x || s->mb_y%s->gob_index) is_gob_start=0;
2143 break;
2144 case CODEC_ID_MPEG2VIDEO:
2145 if(s->mb_x==0 && s->mb_y!=0) is_gob_start=1;
2146 case CODEC_ID_MPEG1VIDEO:
2147 if(s->mb_skip_run) is_gob_start=0;
2148 break;
2149 }
2150
2151 if(is_gob_start){
2152 if(s->start_mb_y != mb_y || mb_x!=0){
2153 write_slice_end(s);
2154
49fb20cb 2155 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){
3ada94ba
BF
2156 ff_mpeg4_init_partitions(s);
2157 }
2158 }
2159
2160 assert((put_bits_count(&s->pb)&7) == 0);
fb53b4a0 2161 current_packet_size= put_bits_ptr(&s->pb) - s->ptr_lastgob;
3ada94ba
BF
2162
2163 if(s->avctx->error_rate && s->resync_mb_x + s->resync_mb_y > 0){
2164 int r= put_bits_count(&s->pb)/8 + s->picture_number + 16 + s->mb_x + s->mb_y;
2165 int d= 100 / s->avctx->error_rate;
2166 if(r % d == 0){
2167 current_packet_size=0;
2168#ifndef ALT_BITSTREAM_WRITER
2169 s->pb.buf_ptr= s->ptr_lastgob;
2170#endif
fb53b4a0 2171 assert(put_bits_ptr(&s->pb) == s->ptr_lastgob);
3ada94ba
BF
2172 }
2173 }
2174
2175 if (s->avctx->rtp_callback){
2176 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width + mb_x - s->resync_mb_x;
2177 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, current_packet_size, number_mb);
2178 }
2179
2180 switch(s->codec_id){
2181 case CODEC_ID_MPEG4:
49fb20cb 2182 if (CONFIG_MPEG4_ENCODER) {
674eeb5f
AJ
2183 ff_mpeg4_encode_video_packet_header(s);
2184 ff_mpeg4_clean_buffers(s);
eb75a698 2185 }
3ada94ba
BF
2186 break;
2187 case CODEC_ID_MPEG1VIDEO:
2188 case CODEC_ID_MPEG2VIDEO:
49fb20cb 2189 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) {
56be950a
AJ
2190 ff_mpeg1_encode_slice_header(s);
2191 ff_mpeg1_clean_buffers(s);
a6bc5731 2192 }
3ada94ba
BF
2193 break;
2194 case CODEC_ID_H263:
2195 case CODEC_ID_H263P:
965424da 2196 if (CONFIG_H263_ENCODER)
674eeb5f 2197 h263_encode_gob_header(s, mb_y);
3ada94ba
BF
2198 break;
2199 }
2200
2201 if(s->flags&CODEC_FLAG_PASS1){
2202 int bits= put_bits_count(&s->pb);
2203 s->misc_bits+= bits - s->last_bits;
2204 s->last_bits= bits;
2205 }
2206
2207 s->ptr_lastgob += current_packet_size;
2208 s->first_slice_line=1;
2209 s->resync_mb_x=mb_x;
2210 s->resync_mb_y=mb_y;
2211 }
2212 }
2213
2214 if( (s->resync_mb_x == s->mb_x)
2215 && s->resync_mb_y+1 == s->mb_y){
2216 s->first_slice_line=0;
2217 }
2218
2219 s->mb_skipped=0;
2220 s->dquant=0; //only for QP_RD
2221
2222 if(mb_type & (mb_type-1) || (s->flags & CODEC_FLAG_QP_RD)){ // more than 1 MB type possible or CODEC_FLAG_QP_RD
2223 int next_block=0;
2224 int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
2225
2226 copy_context_before_encode(&backup_s, s, -1);
2227 backup_s.pb= s->pb;
2228 best_s.data_partitioning= s->data_partitioning;
2229 best_s.partitioned_frame= s->partitioned_frame;
2230 if(s->data_partitioning){
2231 backup_s.pb2= s->pb2;
2232 backup_s.tex_pb= s->tex_pb;
2233 }
2234
2235 if(mb_type&CANDIDATE_MB_TYPE_INTER){
2236 s->mv_dir = MV_DIR_FORWARD;
2237 s->mv_type = MV_TYPE_16X16;
2238 s->mb_intra= 0;
2239 s->mv[0][0][0] = s->p_mv_table[xy][0];
2240 s->mv[0][0][1] = s->p_mv_table[xy][1];
2241 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER, pb, pb2, tex_pb,
2242 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2243 }
2244 if(mb_type&CANDIDATE_MB_TYPE_INTER_I){
2245 s->mv_dir = MV_DIR_FORWARD;
2246 s->mv_type = MV_TYPE_FIELD;
2247 s->mb_intra= 0;
2248 for(i=0; i<2; i++){
2249 j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2250 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2251 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2252 }
2253 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER_I, pb, pb2, tex_pb,
2254 &dmin, &next_block, 0, 0);
2255 }
2256 if(mb_type&CANDIDATE_MB_TYPE_SKIPPED){
2257 s->mv_dir = MV_DIR_FORWARD;
2258 s->mv_type = MV_TYPE_16X16;
2259 s->mb_intra= 0;
2260 s->mv[0][0][0] = 0;
2261 s->mv[0][0][1] = 0;
2262 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_SKIPPED, pb, pb2, tex_pb,
2263 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2264 }
2265 if(mb_type&CANDIDATE_MB_TYPE_INTER4V){
2266 s->mv_dir = MV_DIR_FORWARD;
2267 s->mv_type = MV_TYPE_8X8;
2268 s->mb_intra= 0;
2269 for(i=0; i<4; i++){
2270 s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2271 s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2272 }
2273 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER4V, pb, pb2, tex_pb,
2274 &dmin, &next_block, 0, 0);
2275 }
2276 if(mb_type&CANDIDATE_MB_TYPE_FORWARD){
2277 s->mv_dir = MV_DIR_FORWARD;
2278 s->mv_type = MV_TYPE_16X16;
2279 s->mb_intra= 0;
2280 s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2281 s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2282 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD, pb, pb2, tex_pb,
2283 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2284 }
2285 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD){
2286 s->mv_dir = MV_DIR_BACKWARD;
2287 s->mv_type = MV_TYPE_16X16;
2288 s->mb_intra= 0;
2289 s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2290 s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2291 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD, pb, pb2, tex_pb,
2292 &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
2293 }
2294 if(mb_type&CANDIDATE_MB_TYPE_BIDIR){
2295 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2296 s->mv_type = MV_TYPE_16X16;
2297 s->mb_intra= 0;
2298 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2299 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2300 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2301 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2302 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb,
2303 &dmin, &next_block, 0, 0);
2304 }
2305 if(mb_type&CANDIDATE_MB_TYPE_FORWARD_I){
2306 s->mv_dir = MV_DIR_FORWARD;
2307 s->mv_type = MV_TYPE_FIELD;
2308 s->mb_intra= 0;
2309 for(i=0; i<2; i++){
2310 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2311 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2312 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2313 }
2314 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD_I, pb, pb2, tex_pb,
2315 &dmin, &next_block, 0, 0);
2316 }
2317 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD_I){
2318 s->mv_dir = MV_DIR_BACKWARD;
2319 s->mv_type = MV_TYPE_FIELD;
2320 s->mb_intra= 0;
2321 for(i=0; i<2; i++){
2322 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2323 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2324 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2325 }
2326 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD_I, pb, pb2, tex_pb,
2327 &dmin, &next_block, 0, 0);
2328 }
2329 if(mb_type&CANDIDATE_MB_TYPE_BIDIR_I){
2330 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2331 s->mv_type = MV_TYPE_FIELD;
2332 s->mb_intra= 0;
2333 for(dir=0; dir<2; dir++){
2334 for(i=0; i<2; i++){
2335 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2336 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2337 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2338 }
2339 }
2340 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR_I, pb, pb2, tex_pb,
2341 &dmin, &next_block, 0, 0);
2342 }
2343 if(mb_type&CANDIDATE_MB_TYPE_INTRA){
2344 s->mv_dir = 0;
2345 s->mv_type = MV_TYPE_16X16;
2346 s->mb_intra= 1;
2347 s->mv[0][0][0] = 0;
2348 s->mv[0][0][1] = 0;
2349 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTRA, pb, pb2, tex_pb,
2350 &dmin, &next_block, 0, 0);
2351 if(s->h263_pred || s->h263_aic){
2352 if(best_s.mb_intra)
2353 s->mbintra_table[mb_x + mb_y*s->mb_stride]=1;
2354 else
2355 ff_clean_intra_table_entries(s); //old mode?
2356 }
2357 }
2358
2359 if((s->flags & CODEC_FLAG_QP_RD) && dmin < INT_MAX){
2360 if(best_s.mv_type==MV_TYPE_16X16){ //FIXME move 4mv after QPRD
2361 const int last_qp= backup_s.qscale;
2362 int qpi, qp, dc[6];
2363 DCTELEM ac[6][16];
2364 const int mvdir= (best_s.mv_dir&MV_DIR_BACKWARD) ? 1 : 0;
2365 static const int dquant_tab[4]={-1,1,-2,2};
2366
2367 assert(backup_s.dquant == 0);
2368
2369 //FIXME intra
2370 s->mv_dir= best_s.mv_dir;
2371 s->mv_type = MV_TYPE_16X16;
2372 s->mb_intra= best_s.mb_intra;
2373 s->mv[0][0][0] = best_s.mv[0][0][0];
2374 s->mv[0][0][1] = best_s.mv[0][0][1];
2375 s->mv[1][0][0] = best_s.mv[1][0][0];
2376 s->mv[1][0][1] = best_s.mv[1][0][1];
2377
9701840b 2378 qpi = s->pict_type == FF_B_TYPE ? 2 : 0;
3ada94ba
BF
2379 for(; qpi<4; qpi++){
2380 int dquant= dquant_tab[qpi];
2381 qp= last_qp + dquant;
2382 if(qp < s->avctx->qmin || qp > s->avctx->qmax)
2383 continue;
2384 backup_s.dquant= dquant;
2385 if(s->mb_intra && s->dc_val[0]){
2386 for(i=0; i<6; i++){
2387 dc[i]= s->dc_val[0][ s->block_index[i] ];
2388 memcpy(ac[i], s->ac_val[0][s->block_index[i]], sizeof(DCTELEM)*16);
2389 }
2390 }
2391
2392 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2393 &dmin, &next_block, s->mv[mvdir][0][0], s->mv[mvdir][0][1]);
2394 if(best_s.qscale != qp){
2395 if(s->mb_intra && s->dc_val[0]){
2396 for(i=0; i<6; i++){
2397 s->dc_val[0][ s->block_index[i] ]= dc[i];
2398 memcpy(s->ac_val[0][s->block_index[i]], ac[i], sizeof(DCTELEM)*16);
2399 }
2400 }
2401 }
2402 }
2403 }
2404 }
49fb20cb 2405 if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT){
3ada94ba
BF
2406 int mx= s->b_direct_mv_table[xy][0];
2407 int my= s->b_direct_mv_table[xy][1];
2408
2409 backup_s.dquant = 0;
2410 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2411 s->mb_intra= 0;
2412 ff_mpeg4_set_direct_mv(s, mx, my);
2413 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2414 &dmin, &next_block, mx, my);
2415 }
49fb20cb 2416 if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT0){
3ada94ba
BF
2417 backup_s.dquant = 0;
2418 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2419 s->mb_intra= 0;
2420 ff_mpeg4_set_direct_mv(s, 0, 0);
2421 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2422 &dmin, &next_block, 0, 0);
2423 }
2424 if(!best_s.mb_intra && s->flags2&CODEC_FLAG2_SKIP_RD){
2425 int coded=0;
2426 for(i=0; i<6; i++)
2427 coded |= s->block_last_index[i];
2428 if(coded){
2429 int mx,my;
2430 memcpy(s->mv, best_s.mv, sizeof(s->mv));
49fb20cb 2431 if(CONFIG_MPEG4_ENCODER && best_s.mv_dir & MV_DIRECT){
3ada94ba
BF
2432 mx=my=0; //FIXME find the one we actually used
2433 ff_mpeg4_set_direct_mv(s, mx, my);
2434 }else if(best_s.mv_dir&MV_DIR_BACKWARD){
2435 mx= s->mv[1][0][0];
2436 my= s->mv[1][0][1];
2437 }else{
2438 mx= s->mv[0][0][0];
2439 my= s->mv[0][0][1];
2440 }
2441
2442 s->mv_dir= best_s.mv_dir;
2443 s->mv_type = best_s.mv_type;
2444 s->mb_intra= 0;
2445/* s->mv[0][0][0] = best_s.mv[0][0][0];
2446 s->mv[0][0][1] = best_s.mv[0][0][1];
2447 s->mv[1][0][0] = best_s.mv[1][0][0];
2448 s->mv[1][0][1] = best_s.mv[1][0][1];*/
2449 backup_s.dquant= 0;
2450 s->skipdct=1;
2451 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2452 &dmin, &next_block, mx, my);
2453 s->skipdct=0;
2454 }
2455 }
2456
2457 s->current_picture.qscale_table[xy]= best_s.qscale;
2458
2459 copy_context_after_encode(s, &best_s, -1);
2460
2461 pb_bits_count= put_bits_count(&s->pb);
2462 flush_put_bits(&s->pb);
2463 ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
2464 s->pb= backup_s.pb;
2465
2466 if(s->data_partitioning){
2467 pb2_bits_count= put_bits_count(&s->pb2);
2468 flush_put_bits(&s->pb2);
2469 ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
2470 s->pb2= backup_s.pb2;
2471
2472 tex_pb_bits_count= put_bits_count(&s->tex_pb);
2473 flush_put_bits(&s->tex_pb);
2474 ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
2475 s->tex_pb= backup_s.tex_pb;
2476 }
2477 s->last_bits= put_bits_count(&s->pb);
2478
f34121f3 2479 if (CONFIG_H263_ENCODER &&
9701840b 2480 s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
3ada94ba
BF
2481 ff_h263_update_motion_val(s);
2482
2483 if(next_block==0){ //FIXME 16 vs linesize16
2484 s->dsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad , s->linesize ,16);
2485 s->dsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize , s->uvlinesize, 8);
2486 s->dsp.put_pixels_tab[1][0](s->dest[2], s->rd_scratchpad + 16*s->linesize + 8, s->uvlinesize, 8);
2487 }
2488
2489 if(s->avctx->mb_decision == FF_MB_DECISION_BITS)
2490 MPV_decode_mb(s, s->block);
2491 } else {
2492 int motion_x = 0, motion_y = 0;
2493 s->mv_type=MV_TYPE_16X16;
2494 // only one MB-Type possible
2495
2496 switch(mb_type){
2497 case CANDIDATE_MB_TYPE_INTRA:
2498 s->mv_dir = 0;
2499 s->mb_intra= 1;
2500 motion_x= s->mv[0][0][0] = 0;
2501 motion_y= s->mv[0][0][1] = 0;
2502 break;
2503 case CANDIDATE_MB_TYPE_INTER:
2504 s->mv_dir = MV_DIR_FORWARD;
2505 s->mb_intra= 0;
2506 motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
2507 motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
2508 break;
2509 case CANDIDATE_MB_TYPE_INTER_I:
2510 s->mv_dir = MV_DIR_FORWARD;
2511 s->mv_type = MV_TYPE_FIELD;
2512 s->mb_intra= 0;
2513 for(i=0; i<2; i++){
2514 j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2515 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2516 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2517 }
2518 break;
2519 case CANDIDATE_MB_TYPE_INTER4V:
2520 s->mv_dir = MV_DIR_FORWARD;
2521 s->mv_type = MV_TYPE_8X8;
2522 s->mb_intra= 0;
2523 for(i=0; i<4; i++){
2524 s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2525 s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2526 }
2527 break;
2528 case CANDIDATE_MB_TYPE_DIRECT:
49fb20cb 2529 if (CONFIG_MPEG4_ENCODER) {
674eeb5f
AJ
2530 s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2531 s->mb_intra= 0;
2532 motion_x=s->b_direct_mv_table[xy][0];
2533 motion_y=s->b_direct_mv_table[xy][1];
2534 ff_mpeg4_set_direct_mv(s, motion_x, motion_y);
eb75a698 2535 }
3ada94ba
BF
2536 break;
2537 case CANDIDATE_MB_TYPE_DIRECT0:
49fb20cb 2538 if (CONFIG_MPEG4_ENCODER) {
674eeb5f
AJ
2539 s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2540 s->mb_intra= 0;
2541 ff_mpeg4_set_direct_mv(s, 0, 0);
eb75a698 2542 }
3ada94ba
BF
2543 break;
2544 case CANDIDATE_MB_TYPE_BIDIR:
2545 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2546 s->mb_intra= 0;
2547 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2548 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2549 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2550 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2551 break;
2552 case CANDIDATE_MB_TYPE_BACKWARD:
2553 s->mv_dir = MV_DIR_BACKWARD;
2554 s->mb_intra= 0;
2555 motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2556 motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2557 break;
2558 case CANDIDATE_MB_TYPE_FORWARD:
2559 s->mv_dir = MV_DIR_FORWARD;
2560 s->mb_intra= 0;
2561 motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2562 motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2563// printf(" %d %d ", motion_x, motion_y);
2564 break;
2565 case CANDIDATE_MB_TYPE_FORWARD_I:
2566 s->mv_dir = MV_DIR_FORWARD;
2567 s->mv_type = MV_TYPE_FIELD;
2568 s->mb_intra= 0;
2569 for(i=0; i<2; i++){
2570 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2571 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2572 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2573 }
2574 break;
2575 case CANDIDATE_MB_TYPE_BACKWARD_I:
2576 s->mv_dir = MV_DIR_BACKWARD;
2577 s->mv_type = MV_TYPE_FIELD;
2578 s->mb_intra= 0;
2579 for(i=0; i<2; i++){
2580 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2581 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2582 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2583 }
2584 break;
2585 case CANDIDATE_MB_TYPE_BIDIR_I:
2586 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2587 s->mv_type = MV_TYPE_FIELD;
2588 s->mb_intra= 0;
2589 for(dir=0; dir<2; dir++){
2590 for(i=0; i<2; i++){
2591 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2592 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2593 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2594 }
2595 }
2596 break;
2597 default:
2598 av_log(s->avctx, AV_LOG_ERROR, "illegal MB type\n");
2599 }
2600
2601 encode_mb(s, motion_x, motion_y);
2602
2603 // RAL: Update last macroblock type
2604 s->last_mv_dir = s->mv_dir;
2605
f34121f3 2606 if (CONFIG_H263_ENCODER &&
9701840b 2607 s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
3ada94ba
BF
2608 ff_h263_update_motion_val(s);
2609
2610 MPV_decode_mb(s, s->block);
2611 }
2612
2613 /* clean the MV table in IPS frames for direct mode in B frames */
2614 if(s->mb_intra /* && I,P,S_TYPE */){
2615 s->p_mv_table[xy][0]=0;
2616 s->p_mv_table[xy][1]=0;
2617 }
2618
2619 if(s->flags&CODEC_FLAG_PSNR){
2620 int w= 16;
2621 int h= 16;
2622
2623 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
2624 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
2625
2626 s->current_picture.error[0] += sse(
2627 s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16,
2628 s->dest[0], w, h, s->linesize);
2629 s->current_picture.error[1] += sse(
ec7e2582
BC
2630 s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*chr_h,
2631 s->dest[1], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
3ada94ba 2632 s->current_picture.error[2] += sse(
ec7e2582
BC
2633 s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*chr_h,
2634 s->dest[2], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
3ada94ba
BF
2635 }
2636 if(s->loop_filter){
f34121f3 2637 if(CONFIG_H263_ENCODER && s->out_format == FMT_H263)
3ada94ba
BF
2638 ff_h263_loop_filter(s);
2639 }
2640//printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, put_bits_count(&s->pb));
2641 }
2642 }
2643
2644 //not beautiful here but we must write it before flushing so it has to be here
49fb20cb 2645 if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == FF_I_TYPE)
3ada94ba
BF
2646 msmpeg4_encode_ext_header(s);
2647
2648 write_slice_end(s);
2649
2650 /* Send the last GOB if RTP */
2651 if (s->avctx->rtp_callback) {
2652 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width - s->resync_mb_x;
fb53b4a0 2653 pdif = put_bits_ptr(&s->pb) - s->ptr_lastgob;
3ada94ba
BF
2654 /* Call the RTP callback to send the last GOB */
2655 emms_c();
2656 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, pdif, number_mb);
2657 }
2658
2659 return 0;
2660}
2661
2662#define MERGE(field) dst->field += src->field; src->field=0
2663static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src){
2664 MERGE(me.scene_change_score);
2665 MERGE(me.mc_mb_var_sum_temp);
2666 MERGE(me.mb_var_sum_temp);
2667}
2668
2669static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src){
2670 int i;
2671
2672 MERGE(dct_count[0]); //note, the other dct vars are not part of the context
2673 MERGE(dct_count[1]);
2674 MERGE(mv_bits);
2675 MERGE(i_tex_bits);
2676 MERGE(p_tex_bits);
2677 MERGE(i_count);
2678 MERGE(f_count);
2679 MERGE(b_count);
2680 MERGE(skip_count);
2681 MERGE(misc_bits);
2682 MERGE(error_count);
2683 MERGE(padding_bug_score);
2684 MERGE(current_picture.error[0]);
2685 MERGE(current_picture.error[1]);
2686 MERGE(current_picture.error[2]);
2687
2688 if(dst->avctx->noise_reduction){
2689 for(i=0; i<64; i++){
2690 MERGE(dct_error_sum[0][i]);
2691 MERGE(dct_error_sum[1][i]);
2692 }
2693 }
2694
2695 assert(put_bits_count(&src->pb) % 8 ==0);
2696 assert(put_bits_count(&dst->pb) % 8 ==0);
2697 ff_copy_bits(&dst->pb, src->pb.buf, put_bits_count(&src->pb));
2698 flush_put_bits(&dst->pb);
2699}
2700
2701static int estimate_qp(MpegEncContext *s, int dry_run){
2702 if (s->next_lambda){
2703 s->current_picture_ptr->quality=
2704 s->current_picture.quality = s->next_lambda;
2705 if(!dry_run) s->next_lambda= 0;
2706 } else if (!s->fixed_qscale) {
2707 s->current_picture_ptr->quality=
2708 s->current_picture.quality = ff_rate_estimate_qscale(s, dry_run);
2709 if (s->current_picture.quality < 0)
2710 return -1;
2711 }
2712
2713 if(s->adaptive_quant){
2714 switch(s->codec_id){
2715 case CODEC_ID_MPEG4:
49fb20cb 2716 if (CONFIG_MPEG4_ENCODER)
674eeb5f 2717 ff_clean_mpeg4_qscales(s);
3ada94ba
BF
2718 break;
2719 case CODEC_ID_H263:
2720 case CODEC_ID_H263P:
2721 case CODEC_ID_FLV1:
0bd48530 2722 if (CONFIG_H263_ENCODER)
674eeb5f 2723 ff_clean_h263_qscales(s);
3ada94ba 2724 break;
ccc4b918
MN
2725 default:
2726 ff_init_qscale_tab(s);
3ada94ba
BF
2727 }
2728
2729 s->lambda= s->lambda_table[0];
2730 //FIXME broken
2731 }else
2732 s->lambda= s->current_picture.quality;
2733//printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality);
2734 update_qscale(s);
2735 return 0;
2736}
2737
7da31a80
AJ
2738/* must be called before writing the header */
2739static void set_frame_distances(MpegEncContext * s){
2740 assert(s->current_picture_ptr->pts != AV_NOPTS_VALUE);
2741 s->time= s->current_picture_ptr->pts*s->avctx->time_base.num;
2742
9701840b 2743 if(s->pict_type==FF_B_TYPE){
7da31a80
AJ
2744 s->pb_time= s->pp_time - (s->last_non_b_time - s->time);
2745 assert(s->pb_time > 0 && s->pb_time < s->pp_time);
2746 }else{
2747 s->pp_time= s->time - s->last_non_b_time;
2748 s->last_non_b_time= s->time;
2749 assert(s->picture_number==0 || s->pp_time > 0);
2750 }
2751}
2752
3ada94ba
BF
2753static int encode_picture(MpegEncContext *s, int picture_number)
2754{
2755 int i;
2756 int bits;
2757
2758 s->picture_number = picture_number;
2759
2760 /* Reset the average MB variance */
2761 s->me.mb_var_sum_temp =
2762 s->me.mc_mb_var_sum_temp = 0;
2763
2764 /* we need to initialize some time vars before we can encode b-frames */
2765 // RAL: Condition added for MPEG1VIDEO
2766 if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->h263_msmpeg4))
7da31a80 2767 set_frame_distances(s);
49fb20cb 2768 if(CONFIG_MPEG4_ENCODER && s->codec_id == CODEC_ID_MPEG4)
7da31a80 2769 ff_set_mpeg4_time(s);
3ada94ba
BF
2770
2771 s->me.scene_change_score=0;
2772
e6dba5df 2773// s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME rate distortion
3ada94ba 2774
9701840b 2775 if(s->pict_type==FF_I_TYPE){
3ada94ba
BF
2776 if(s->msmpeg4_version >= 3) s->no_rounding=1;
2777 else s->no_rounding=0;
9701840b 2778 }else if(s->pict_type!=FF_B_TYPE){
3ada94ba
BF
2779 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
2780 s->no_rounding ^= 1;
2781 }
2782
2783 if(s->flags & CODEC_FLAG_PASS2){
2784 if (estimate_qp(s,1) < 0)
2785 return -1;
2786 ff_get_2pass_fcode(s);
2787 }else if(!(s->flags & CODEC_FLAG_QSCALE)){
9701840b 2788 if(s->pict_type==FF_B_TYPE)
3ada94ba
BF
2789 s->lambda= s->last_lambda_for[s->pict_type];
2790 else
2791 s->lambda= s->last_lambda_for[s->last_non_b_pict_type];
2792 update_qscale(s);
2793 }
2794
2795 s->mb_intra=0; //for the rate distortion & bit compare functions
2796 for(i=1; i<s->avctx->thread_count; i++){
2797 ff_update_duplicate_context(s->thread_context[i], s);
2798 }
2799
719f3702
MN
2800 if(ff_init_me(s)<0)
2801 return -1;
3ada94ba
BF
2802
2803 /* Estimate motion for every MB */
9701840b 2804 if(s->pict_type != FF_I_TYPE){
3ada94ba
BF
2805 s->lambda = (s->lambda * s->avctx->me_penalty_compensation + 128)>>8;
2806 s->lambda2= (s->lambda2* (int64_t)s->avctx->me_penalty_compensation + 128)>>8;
9701840b
AJ
2807 if(s->pict_type != FF_B_TYPE && s->avctx->me_threshold==0){
2808 if((s->avctx->pre_me && s->last_non_b_pict_type==FF_I_TYPE) || s->avctx->pre_me==2){
01418506 2809 s->avctx->execute(s->avctx, pre_estimate_motion_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
3ada94ba
BF
2810 }
2811 }
2812
01418506 2813 s->avctx->execute(s->avctx, estimate_motion_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
9701840b 2814 }else /* if(s->pict_type == FF_I_TYPE) */{
3ada94ba
BF
2815 /* I-Frame */
2816 for(i=0; i<s->mb_stride*s->mb_height; i++)
2817 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2818
2819 if(!s->fixed_qscale){
2820 /* finding spatial complexity for I-frame rate control */
01418506 2821 s->avctx->execute(s->avctx, mb_var_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
3ada94ba
BF
2822 }
2823 }
2824 for(i=1; i<s->avctx->thread_count; i++){
2825 merge_context_after_me(s, s->thread_context[i]);
2826 }
2827 s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum= s->me.mc_mb_var_sum_temp;
2828 s->current_picture. mb_var_sum= s->current_picture_ptr-> mb_var_sum= s->me. mb_var_sum_temp;
2829 emms_c();
2830
9701840b
AJ
2831 if(s->me.scene_change_score > s->avctx->scenechange_threshold && s->pict_type == FF_P_TYPE){
2832 s->pict_type= FF_I_TYPE;
3ada94ba
BF
2833 for(i=0; i<s->mb_stride*s->mb_height; i++)
2834 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2835//printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum);
2836 }
2837
2838 if(!s->umvplus){
9701840b 2839 if(s->pict_type==FF_P_TYPE || s->pict_type==FF_S_TYPE) {
3ada94ba
BF
2840 s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER);
2841
2842 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2843 int a,b;
2844 a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select
2845 b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I);
159ef4b0 2846 s->f_code= FFMAX3(s->f_code, a, b);
3ada94ba
BF
2847 }
2848
2849 ff_fix_long_p_mvs(s);
2850 ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0);
2851 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2852 int j;
2853 for(i=0; i<2; i++){
2854 for(j=0; j<2; j++)
2855 ff_fix_long_mvs(s, s->p_field_select_table[i], j,
2856 s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0);
2857 }
2858 }
2859 }
2860
9701840b 2861 if(s->pict_type==FF_B_TYPE){
3ada94ba
BF
2862 int a, b;
2863
2864 a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD);
2865 b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2866 s->f_code = FFMAX(a, b);
2867
2868 a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD);
2869 b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2870 s->b_code = FFMAX(a, b);
2871
2872 ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1);
2873 ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1);
2874 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2875 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2876 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2877 int dir, j;
2878 for(dir=0; dir<2; dir++){
2879 for(i=0; i<2; i++){
2880 for(j=0; j<2; j++){
2881 int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I)
2882 : (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I);
2883 ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j,
2884 s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1);
2885 }
2886 }
2887 }
2888 }
2889 }
2890 }
2891
2892 if (estimate_qp(s, 0) < 0)
2893 return -1;
2894
9701840b 2895 if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==FF_I_TYPE && !(s->flags & CODEC_FLAG_QSCALE))
3ada94ba
BF
2896 s->qscale= 3; //reduce clipping problems
2897
2898 if (s->out_format == FMT_MJPEG) {
2899 /* for mjpeg, we do include qscale in the matrix */
2900 s->intra_matrix[0] = ff_mpeg1_default_intra_matrix[0];
2901 for(i=1;i<64;i++){
2902 int j= s->dsp.idct_permutation[i];
2903
2904 s->intra_matrix[j] = av_clip_uint8((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
2905 }
69cea75f 2906 ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
3ada94ba
BF
2907 s->intra_matrix, s->intra_quant_bias, 8, 8, 1);
2908 s->qscale= 8;
2909 }
2910
2911 //FIXME var duplication
2912 s->current_picture_ptr->key_frame=
9701840b 2913 s->current_picture.key_frame= s->pict_type == FF_I_TYPE; //FIXME pic_ptr
3ada94ba
BF
2914 s->current_picture_ptr->pict_type=
2915 s->current_picture.pict_type= s->pict_type;
2916
2917 if(s->current_picture.key_frame)
2918 s->picture_in_gop_number=0;
2919
2920 s->last_bits= put_bits_count(&s->pb);
2921 switch(s->out_format) {
2922 case FMT_MJPEG:
49fb20cb 2923 if (CONFIG_MJPEG_ENCODER)
3ada94ba
BF
2924 ff_mjpeg_encode_picture_header(s);
2925 break;
2926 case FMT_H261:
49fb20cb 2927 if (CONFIG_H261_ENCODER)
3ada94ba
BF
2928 ff_h261_encode_picture_header(s, picture_number);
2929 break;
2930 case FMT_H263:
49fb20cb 2931 if (CONFIG_WMV2_ENCODER && s->codec_id == CODEC_ID_WMV2)
3ada94ba 2932 ff_wmv2_encode_picture_header(s, picture_number);
49fb20cb 2933 else if (CONFIG_MSMPEG4_ENCODER && s->h263_msmpeg4)
3ada94ba 2934 msmpeg4_encode_picture_header(s, picture_number);
49fb20cb 2935 else if (CONFIG_MPEG4_ENCODER && s->h263_pred)
3ada94ba 2936 mpeg4_encode_picture_header(s, picture_number);
49fb20cb 2937 else if (CONFIG_RV10_ENCODER && s->codec_id == CODEC_ID_RV10)
3ada94ba 2938 rv10_encode_picture_header(s, picture_number);
49fb20cb 2939 else if (CONFIG_RV20_ENCODER && s->codec_id == CODEC_ID_RV20)
3ada94ba 2940 rv20_encode_picture_header(s, picture_number);
49fb20cb 2941 else if (CONFIG_FLV_ENCODER && s->codec_id == CODEC_ID_FLV1)
3ada94ba 2942 ff_flv_encode_picture_header(s, picture_number);
f34121f3 2943 else if (CONFIG_H263_ENCODER)
3ada94ba
BF
2944 h263_encode_picture_header(s, picture_number);
2945 break;
2946 case FMT_MPEG1:
49fb20cb 2947 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
56be950a 2948 mpeg1_encode_picture_header(s, picture_number);
3ada94ba
BF
2949 break;
2950 case FMT_H264:
2951 break;
2952 default:
2953 assert(0);
2954 }
2955 bits= put_bits_count(&s->pb);
2956 s->header_bits= bits - s->last_bits;
2957
2958 for(i=1; i<s->avctx->thread_count; i++){
2959 update_duplicate_context_after_me(s->thread_context[i], s);
2960 }
01418506 2961 s->avctx->execute(s->avctx, encode_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
3ada94ba
BF
2962 for(i=1; i<s->avctx->thread_count; i++){
2963 merge_context_after_encode(s, s->thread_context[i]);
2964 }
2965 emms_c();
2966 return 0;
2967}
2968
2969void denoise_dct_c(MpegEncContext *s, DCTELEM *block){
2970 const int intra= s->mb_intra;
2971 int i;
2972
2973 s->dct_count[intra]++;
2974
2975 for(i=0; i<64; i++){
2976 int level= block[i];
2977
2978 if(level){
2979 if(level>0){
2980 s->dct_error_sum[intra][i] += level;
2981 level -= s->dct_offset[intra][i];
2982 if(level<0) level=0;
2983 }else{
2984 s->dct_error_sum[intra][i] -= level;
2985 level += s->dct_offset[intra][i];
2986 if(level>0) level=0;
2987 }
2988 block[i]= level;
2989 }
2990 }
2991}
2992
2993int dct_quantize_trellis_c(MpegEncContext *s,
2994 DCTELEM *block, int n,
2995 int qscale, int *overflow){
2996 const int *qmat;
2997 const uint8_t *scantable= s->intra_scantable.scantable;
2998 const uint8_t *perm_scantable= s->intra_scantable.permutated;
2999 int max=0;
3000 unsigned int threshold1, threshold2;
3001 int bias=0;
3002 int run_tab[65];
3003 int level_tab[65];
3004 int score_tab[65];
3005 int survivor[65];
3006 int survivor_count;
3007 int last_run=0;
3008 int last_level=0;
3009 int last_score= 0;
3010 int last_i;
3011 int coeff[2][64];
3012 int coeff_count[64];
3013 int qmul, qadd, start_i, last_non_zero, i, dc;
3014 const int esc_length= s->ac_esc_length;
3015 uint8_t * length;
3016 uint8_t * last_length;
3017 const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6);
3018
3019 s->dsp.fdct (block);
3020
3021 if(s->dct_error_sum)
3022 s->denoise_dct(s, block);
3023 qmul= qscale*16;
3024 qadd= ((qscale-1)|1)*8;
3025
3026 if (s->mb_intra) {
3027 int q;
3028 if (!s->h263_aic) {
3029 if (n < 4)
3030 q = s->y_dc_scale;
3031 else
3032 q = s->c_dc_scale;
3033 q = q << 3;
3034 } else{
3035 /* For AIC we skip quant/dequant of INTRADC */
3036 q = 1 << 3;
3037 qadd=0;
3038 }
3039
3040 /* note: block[0] is assumed to be positive */
3041 block[0] = (block[0] + (q >> 1)) / q;
3042 start_i = 1;
3043 last_non_zero = 0;
3044 qmat = s->q_intra_matrix[qscale];
3045 if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3046 bias= 1<<(QMAT_SHIFT-1);
3047 length = s->intra_ac_vlc_length;
3048 last_length= s->intra_ac_vlc_last_length;
3049 } else {
3050 start_i = 0;
3051 last_non_zero = -1;
3052 qmat = s->q_inter_matrix[qscale];
3053 length = s->inter_ac_vlc_length;
3054 last_length= s->inter_ac_vlc_last_length;
3055 }
3056 last_i= start_i;
3057
3058 threshold1= (1<<QMAT_SHIFT) - bias - 1;
3059 threshold2= (threshold1<<1);
3060
3061 for(i=63; i>=start_i; i--) {
3062 const int j = scantable[i];
3063 int level = block[j] * qmat[j];
3064
3065 if(((unsigned)(level+threshold1))>threshold2){
3066 last_non_zero = i;
3067 break;
3068 }
3069 }
3070
3071 for(i=start_i; i<=last_non_zero; i++) {
3072 const int j = scantable[i];
3073 int level = block[j] * qmat[j];
3074
3075// if( bias+level >= (1<<(QMAT_SHIFT - 3))
3076// || bias-level >= (1<<(QMAT_SHIFT - 3))){
3077 if(((unsigned)(level+threshold1))>threshold2){
3078 if(level>0){
3079 level= (bias + level)>>QMAT_SHIFT;
3080 coeff[0][i]= level;
3081 coeff[1][i]= level-1;
3082// coeff[2][k]= level-2;
3083 }else{
3084 level= (bias - level)>>QMAT_SHIFT;
3085 coeff[0][i]= -level;
3086 coeff[1][i]= -level+1;
3087// coeff[2][k]= -level+2;
3088 }
3089 coeff_count[i]= FFMIN(level, 2);
3090 assert(coeff_count[i]);
3091 max |=level;
3092 }else{
3093 coeff[0][i]= (level>>31)|1;
3094 coeff_count[i]= 1;
3095 }
3096 }
3097
3098 *overflow= s->max_qcoeff < max; //overflow might have happened
3099
3100 if(last_non_zero < start_i){
3101 memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3102 return last_non_zero;
3103 }
3104
3105 score_tab[start_i]= 0;
3106 survivor[0]= start_i;
3107 survivor_count= 1;
3108
3109 for(i=start_i; i<=last_non_zero; i++){
e6dba5df 3110 int level_index, j, zero_distortion;
b6bffc46 3111 int dct_coeff= FFABS(block[ scantable[i] ]);
3ada94ba 3112 int best_score=256*256*256*120;
b6bffc46
MN
3113
3114 if ( s->dsp.fdct == fdct_ifast
3115#ifndef FAAN_POSTSCALE
3116 || s->dsp.fdct == ff_faandct
3117#endif
3118 )
939e4e3a 3119 dct_coeff= (dct_coeff*ff_inv_aanscales[ scantable[i] ]) >> 12;
e6dba5df 3120 zero_distortion= dct_coeff*dct_coeff;
b6bffc46 3121
3ada94ba 3122 for(level_index=0; level_index < coeff_count[i]; level_index++){
e6dba5df 3123 int distortion;
3ada94ba
BF
3124 int level= coeff[level_index][i];
3125 const int alevel= FFABS(level);
3126 int unquant_coeff;
3127
3128 assert(level);
3129
3130 if(s->out_format == FMT_H263){
3131 unquant_coeff= alevel*qmul + qadd;
3132 }else{ //MPEG1
3133 j= s->dsp.idct_permutation[ scantable[i] ]; //FIXME optimize
3134 if(s->mb_intra){
3135 unquant_coeff = (int)( alevel * qscale * s->intra_matrix[j]) >> 3;
3136 unquant_coeff = (unquant_coeff - 1) | 1;
3137 }else{
3138 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[j])) >> 4;
3139 unquant_coeff = (unquant_coeff - 1) | 1;
3140 }
3141 unquant_coeff<<= 3;
3142 }
3143
e6dba5df 3144 distortion= (unquant_coeff - dct_coeff) * (unquant_coeff - dct_coeff) - zero_distortion;
3ada94ba
BF
3145 level+=64;
3146 if((level&(~127)) == 0){
3147 for(j=survivor_count-1; j>=0; j--){
3148 int run= i - survivor[j];
e6dba5df 3149 int score= distortion + length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3ada94ba
BF
3150 score += score_tab[i-run];
3151
3152 if(score < best_score){
3153 best_score= score;
3154 run_tab[i+1]= run;
3155 level_tab[i+1]= level-64;
3156 }
3157 }
3158
3159 if(s->out_format == FMT_H263){
3160 for(j=survivor_count-1; j>=0; j--){
3161 int run= i - survivor[j];
e6dba5df 3162 int score= distortion + last_length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3ada94ba
BF
3163 score += score_tab[i-run];
3164 if(score < last_score){
3165 last_score= score;
3166 last_run= run;
3167 last_level= level-64;
3168 last_i= i+1;
3169 }
3170 }
3171 }
3172 }else{
e6dba5df 3173 distortion += esc_length*lambda;
3ada94ba
BF
3174 for(j=survivor_count-1; j>=0; j--){
3175 int run= i - survivor[j];
e6dba5df 3176 int score= distortion + score_tab[i-run];
3ada94ba
BF
3177
3178 if(score < best_score){
3179 best_score= score;
3180 run_tab[i+1]= run;
3181 level_tab[i+1]= level-64;
3182 }
3183 }
3184
3185 if(s->out_format == FMT_H263){
3186 for(j=survivor_count-1; j>=0; j--){
3187 int run= i - survivor[j];
e6dba5df 3188 int score= distortion + score_tab[i-run];
3ada94ba
BF
3189 if(score < last_score){
3190 last_score= score;
3191 last_run= run;
3192 last_level= level-64;
3193 last_i= i+1;
3194 }
3195 }
3196 }
3197 }
3198 }
3199
3200 score_tab[i+1]= best_score;
3201
3202 //Note: there is a vlc code in mpeg4 which is 1 bit shorter then another one with a shorter run and the same level
3203 if(last_non_zero <= 27){
3204 for(; survivor_count; survivor_count--){
3205 if(score_tab[ survivor[survivor_count-1] ] <= best_score)
3206 break;
3207 }
3208 }else{
3209 for(; survivor_count; survivor_count--){
3210 if(score_tab[ survivor[survivor_count-1] ] <= best_score + lambda)
3211 break;
3212 }
3213 }
3214
3215 survivor[ survivor_count++ ]= i+1;
3216 }
3217
3218 if(s->out_format != FMT_H263){
3219 last_score= 256*256*256*120;
3220 for(i= survivor[0]; i<=last_non_zero + 1; i++){
3221 int score= score_tab[i];
3222 if(i) score += lambda*2; //FIXME exacter?
3223
3224 if(score < last_score){
3225 last_score= score;
3226 last_i= i;
3227 last_level= level_tab[i];
3228 last_run= run_tab[i];
3229 }
3230 }
3231 }
3232
3233 s->coded_score[n] = last_score;
3234
3235 dc= FFABS(block[0]);
3236 last_non_zero= last_i - 1;
3237 memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3238
3239 if(last_non_zero < start_i)
3240 return last_non_zero;
3241
3242 if(last_non_zero == 0 && start_i == 0){
3243 int best_level= 0;
3244 int best_score= dc * dc;
3245
3246 for(i=0; i<coeff_count[0]; i++){
3247 int level= coeff[i][0];
3248 int alevel= FFABS(level);
3249 int unquant_coeff, score, distortion;
3250
3251 if(s->out_format == FMT_H263){
3252 unquant_coeff= (alevel*qmul + qadd)>>3;
3253 }else{ //MPEG1
3254 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[0])) >> 4;
3255 unquant_coeff = (unquant_coeff - 1) | 1;
3256 }
3257 unquant_coeff = (unquant_coeff + 4) >> 3;
3258 unquant_coeff<<= 3 + 3;
3259
3260 distortion= (unquant_coeff - dc) * (unquant_coeff - dc);
3261 level+=64;
3262 if((level&(~127)) == 0) score= distortion + last_length[UNI_AC_ENC_INDEX(0, level)]*lambda;
3263 else score= distortion + esc_length*lambda;
3264
3265 if(score < best_score){
3266 best_score= score;
3267 best_level= level - 64;
3268 }
3269 }
3270 block[0]= best_level;
3271 s->coded_score[n] = best_score - dc*dc;
3272 if(best_level == 0) return -1;
3273 else return last_non_zero;
3274 }
3275
3276 i= last_i;
3277 assert(last_level);
3278
3279 block[ perm_scantable[last_non_zero] ]= last_level;
3280 i -= last_run + 1;
3281
3282 for(; i>start_i; i -= run_tab[i] + 1){
3283 block[ perm_scantable[i-1] ]= level_tab[i];
3284 }
3285
3286 return last_non_zero;
3287}
3288
3289//#define REFINE_STATS 1
3290static int16_t basis[64][64];
3291
3292static void build_basis(uint8_t *perm){
3293 int i, j, x, y;
3294 emms_c();
3295 for(i=0; i<8; i++){
3296 for(j=0; j<8; j++){
3297 for(y=0; y<8; y++){
3298 for(x=0; x<8; x++){
3299 double s= 0.25*(1<<BASIS_SHIFT);
3300 int index= 8*i + j;
3301 int perm_index= perm[index];
3302 if(i==0) s*= sqrt(0.5);
3303 if(j==0) s*= sqrt(0.5);
3304 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)));
3305 }
3306 }
3307 }
3308 }
3309}
3310
3311static int dct_quantize_refine(MpegEncContext *s, //FIXME breaks denoise?
3312 DCTELEM *block, int16_t *weight, DCTELEM *orig,
3313 int n, int qscale){
3314 int16_t rem[64];
40d11227 3315 LOCAL_ALIGNED_16(DCTELEM, d1, [64]);
3ada94ba
BF
3316 const uint8_t *scantable= s->intra_scantable.scantable;
3317 const uint8_t *perm_scantable= s->intra_scantable.permutated;
3318// unsigned int threshold1, threshold2;
3319// int bias=0;
3320 int run_tab[65];
3321 int prev_run=0;
3322 int prev_level=0;
3323 int qmul, qadd, start_i, last_non_zero, i, dc;
3324 uint8_t * length;
3325 uint8_t * last_length;
3326 int lambda;
3327 int rle_index, run, q = 1, sum; //q is only used when s->mb_intra is true
3328#ifdef REFINE_STATS
3329static int count=0;
3330static int after_last=0;
3331static int to_zero=0;
3332static int from_zero=0;
3333static int raise=0;
3334static int lower=0;
3335static int messed_sign=0;
3336#endif
3337
3338 if(basis[0][0] == 0)
3339 build_basis(s->dsp.idct_permutation);
3340
3341 qmul= qscale*2;
3342 qadd= (qscale-1)|1;
3343 if (s->mb_intra) {
3344 if (!s->h263_aic) {
3345 if (n < 4)
3346 q = s->y_dc_scale;
3347 else
3348 q = s->c_dc_scale;
3349 } else{
3350 /* For AIC we skip quant/dequant of INTRADC */
3351 q = 1;
3352 qadd=0;
3353 }
3354 q <<= RECON_SHIFT-3;
3355 /* note: block[0] is assumed to be positive */
3356 dc= block[0]*q;
3357// block[0] = (block[0] + (q >> 1)) / q;
3358 start_i = 1;
3ada94ba
BF
3359// if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3360// bias= 1<<(QMAT_SHIFT-1);
3361 length = s->intra_ac_vlc_length;
3362 last_length= s->intra_ac_vlc_last_length;
3363 } else {
3364 dc= 0;
3365 start_i = 0;
3ada94ba
BF
3366 length = s->inter_ac_vlc_length;
3367 last_length= s->inter_ac_vlc_last_length;
3368 }
3369 last_non_zero = s->block_last_index[n];
3370
3371#ifdef REFINE_STATS
3372{START_TIMER
3373#endif
3374 dc += (1<<(RECON_SHIFT-1));
3375 for(i=0; i<64; i++){
3376 rem[i]= dc - (orig[i]<<RECON_SHIFT); //FIXME use orig dirrectly instead of copying to rem[]
3377 }
3378#ifdef REFINE_STATS
3379STOP_TIMER("memset rem[]")}
3380#endif
3381 sum=0;
3382 for(i=0; i<64; i++){
3383 int one= 36;
3384 int qns=4;
3385 int w;
3386
3387 w= FFABS(weight[i]) + qns*one;
3388 w= 15 + (48*qns*one + w/2)/w; // 16 .. 63
3389
3390 weight[i] = w;
3391// w=weight[i] = (63*qns + (w/2)) / w;
3392
3393 assert(w>0);
3394 assert(w<(1<<6));
3395 sum += w*w;
3396 }
3397 lambda= sum*(uint64_t)s->lambda2 >> (FF_LAMBDA_SHIFT - 6 + 6 + 6 + 6);
3398#ifdef REFINE_STATS
3399{START_TIMER
3400#endif
3401 run=0;
3402 rle_index=0;
3403 for(i=start_i; i<=last_non_zero; i++){
3404 int j= perm_scantable[i];
3405 const int level= block[j];
3406 int coeff;
3407
3408 if(level){
3409 if(level<0) coeff= qmul*level - qadd;
3410 else coeff= qmul*level + qadd;
3411 run_tab[rle_index++]=run;
3412 run=0;
3413
3414 s->dsp.add_8x8basis(rem, basis[j], coeff);
3415 }else{
3416 run++;
3417 }
3418 }
3419#ifdef REFINE_STATS
3420if(last_non_zero>0){
3421STOP_TIMER("init rem[]")
3422}
3423}
3424
3425{START_TIMER
3426#endif
3427 for(;;){
3428 int best_score=s->dsp.try_8x8basis(rem, weight, basis[0], 0);
3429 int best_coeff=0;
3430 int best_change=0;
3431 int run2, best_unquant_change=0, analyze_gradient;
3432#ifdef REFINE_STATS
3433{START_TIMER
3434#endif
3435 analyze_gradient = last_non_zero > 2 || s->avctx->quantizer_noise_shaping >= 3;
3436
3437 if(analyze_gradient){
3438#ifdef REFINE_STATS
3439{START_TIMER
3440#endif
3441 for(i=0; i<64; i++){
3442 int w= weight[i];
3443
3444 d1[i] = (rem[i]*w*w + (1<<(RECON_SHIFT+12-1)))>>(RECON_SHIFT+12);
3445 }
3446#ifdef REFINE_STATS
3447STOP_TIMER("rem*w*w")}
3448{START_TIMER
3449#endif
3450 s->dsp.fdct(d1);
3451#ifdef REFINE_STATS
3452STOP_TIMER("dct")}
3453#endif
3454 }
3455
3456 if(start_i){
3457 const int level= block[0];
3458 int change, old_coeff;
3459
3460 assert(s->mb_intra);
3461
3462 old_coeff= q*level;
3463
3464 for(change=-1; change<=1; change+=2){
3465 int new_level= level + change;
3466 int score, new_coeff;
3467
3468 new_coeff= q*new_level;
3469 if(new_coeff >= 2048 || new_coeff < 0)
3470 continue;
3471
3472 score= s->dsp.try_8x8basis(rem, weight, basis[0], new_coeff - old_coeff);
3473 if(score<best_score){
3474 best_score= score;
3475 best_coeff= 0;
3476 best_change= change;
3477 best_unquant_change= new_coeff - old_coeff;
3478 }
3479 }
3480 }
3481
3482 run=0;
3483 rle_index=0;
3484 run2= run_tab[rle_index++];
3485 prev_level=0;
3486 prev_run=0;
3487
3488 for(i=start_i; i<64; i++){
3489 int j= perm_scantable[i];
3490 const int level= block[j];
3491 int change, old_coeff;
3492
3493 if(s->avctx->quantizer_noise_shaping < 3 && i > last_non_zero + 1)
3494 break;
3495
3496 if(level){
3497 if(level<0) old_coeff= qmul*level - qadd;
3498 else old_coeff= qmul*level + qadd;
3499 run2= run_tab[rle_index++]; //FIXME ! maybe after last
3500 }else{
3501 old_coeff=0;
3502 run2--;
3503 assert(run2>=0 || i >= last_non_zero );
3504 }
3505
3506 for(change=-1; change<=1; change+=2){
3507 int new_level= level + change;
3508 int score, new_coeff, unquant_change;
3509
3510 score=0;
3511 if(s->avctx->quantizer_noise_shaping < 2 && FFABS(new_level) > FFABS(level))
3512 continue;
3513
3514 if(new_level){
3515 if(new_level<0) new_coeff= qmul*new_level - qadd;
3516 else new_coeff= qmul*new_level + qadd;
3517 if(new_coeff >= 2048 || new_coeff <= -2048)
3518 continue;
3519 //FIXME check for overflow
3520
3521 if(level){
3522 if(level < 63 && level > -63){
3523 if(i < last_non_zero)
3524 score += length[UNI_AC_ENC_INDEX(run, new_level+64)]
3525 - length[UNI_AC_ENC_INDEX(run, level+64)];
3526 else
3527 score += last_length[UNI_AC_ENC_INDEX(run, new_level+64)]
3528 - last_length[UNI_AC_ENC_INDEX(run, level+64)];
3529 }
3530 }else{
3531 assert(FFABS(new_level)==1);
3532
3533 if(analyze_gradient){
3534 int g= d1[ scantable[i] ];
3535 if(g && (g^new_level) >= 0)
3536 continue;
3537 }
3538
3539 if(i < last_non_zero){
3540 int next_i= i + run2 + 1;
3541 int next_level= block[ perm_scantable[next_i] ] + 64;
3542
3543 if(next_level&(~127))
3544 next_level= 0;
3545
3546 if(next_i < last_non_zero)
3547 score += length[UNI_AC_ENC_INDEX(run, 65)]
3548 + length[UNI_AC_ENC_INDEX(run2, next_level)]
3549 - length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3550 else
3551 score += length[UNI_AC_ENC_INDEX(run, 65)]
3552 + last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3553 - last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3554 }else{
3555 score += last_length[UNI_AC_ENC_INDEX(run, 65)];
3556 if(prev_level){
3557 score += length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3558 - last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3559 }
3560 }
3561 }
3562 }else{
3563 new_coeff=0;
3564 assert(FFABS(level)==1);
3565
3566 if(i < last_non_zero){
3567 int next_i= i + run2 + 1;
3568 int next_level= block[ perm_scantable[next_i] ] + 64;
3569
3570 if(next_level&(~127))
3571 next_level= 0;
3572
3573 if(next_i < last_non_zero)
3574 score += length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3575 - length[UNI_AC_ENC_INDEX(run2, next_level)]
3576 - length[UNI_AC_ENC_INDEX(run, 65)];
3577 else
3578 score += last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3579 - last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3580 - length[UNI_AC_ENC_INDEX(run, 65)];
3581 }else{
3582 score += -last_length[UNI_AC_ENC_INDEX(run, 65)];
3583 if(prev_level){
3584 score += last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3585 - length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3586 }
3587 }
3588 }
3589
3590 score *= lambda;
3591
3592 unquant_change= new_coeff - old_coeff;
3593 assert((score < 100*lambda && score > -100*lambda) || lambda==0);
3594
3595 score+= s->dsp.try_8x8basis(rem, weight, basis[j], unquant_change);
3596 if(score<best_score){
3597 best_score= score;
3598 best_coeff= i;
3599 best_change= change;
3600 best_unquant_change= unquant_change;
3601 }
3602 }
3603 if(level){
3604 prev_level= level + 64;
3605 if(prev_level&(~127))
3606 prev_level= 0;
3607 prev_run= run;
3608 run=0;
3609 }else{
3610 run++;
3611 }
3612 }
3613#ifdef REFINE_STATS
3614STOP_TIMER("iterative step")}
3615#endif
3616
3617 if(best_change){
3618 int j= perm_scantable[ best_coeff ];
3619
3620 block[j] += best_change;
3621
3622 if(best_coeff > last_non_zero){
3623 last_non_zero= best_coeff;
3624 assert(block[j]);
3625#ifdef REFINE_STATS
3626after_last++;
3627#endif
3628 }else{
3629#ifdef REFINE_STATS
3630if(block[j]){
3631 if(block[j] - best_change){
3632 if(FFABS(block[j]) > FFABS(block[j] - best_change)){
3633 raise++;
3634 }else{
3635 lower++;
3636 }
3637 }else{
3638 from_zero++;
3639 }
3640}else{
3641 to_zero++;
3642}
3643#endif
3644 for(; last_non_zero>=start_i; last_non_zero--){
3645 if(block[perm_scantable[last_non_zero]])
3646 break;
3647 }
3648 }
3649#ifdef REFINE_STATS
3650count++;
3651if(256*256*256*64 % count == 0){
3652 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);
3653}
3654#endif
3655 run=0;
3656 rle_index=0;
3657 for(i=start_i; i<=last_non_zero; i++){
3658 int j= perm_scantable[i];
3659 const int level= block[j];
3660
3661 if(level){
3662 run_tab[rle_index++]=run;
3663 run=0;
3664 }else{
3665 run++;
3666 }
3667 }
3668
3669 s->dsp.add_8x8basis(rem, basis[j], best_unquant_change);
3670 }else{
3671 break;
3672 }
3673 }
3674#ifdef REFINE_STATS
3675if(last_non_zero>0){
3676STOP_TIMER("iterative search")
3677}
3678}
3679#endif
3680
3681 return last_non_zero;