swscale: fix crash with dithering due incorrect offset calculation.
[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 *
2912e87a 8 * This file is part of Libav.
3ada94ba 9 *
2912e87a 10 * Libav is free software; you can redistribute it and/or
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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 *
2912e87a 15 * Libav is distributed in the hope that it will be useful,
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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
2912e87a 21 * License along with Libav; if not, write to the Free Software
3ada94ba 22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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23 */
24
25/**
ba87f080 26 * @file
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27 * The simplest mpeg encoder (well, it was the simplest!).
28 */
29
94ca624f 30#include "libavutil/intmath.h"
0ebcdf5c 31#include "libavutil/mathematics.h"
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32#include "avcodec.h"
33#include "dsputil.h"
34#include "mpegvideo.h"
35#include "mpegvideo_common.h"
c46eeae2 36#include "h263.h"
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37#include "mjpegenc.h"
38#include "msmpeg4.h"
39#include "faandct.h"
6a9c8594 40#include "thread.h"
8b22017f 41#include "aandcttab.h"
eb523769 42#include "flv.h"
ca334dd1 43#include "mpeg4video.h"
7ffd8332 44#include "internal.h"
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45#include <limits.h>
46
47//#undef NDEBUG
48//#include <assert.h>
49
50static int encode_picture(MpegEncContext *s, int picture_number);
51static int dct_quantize_refine(MpegEncContext *s, DCTELEM *block, int16_t *weight, DCTELEM *orig, int n, int qscale);
52static int sse_mb(MpegEncContext *s);
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53static void denoise_dct_c(MpegEncContext *s, DCTELEM *block);
54static int dct_quantize_trellis_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
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55
56/* enable all paranoid tests for rounding, overflows, etc... */
57//#define PARANOID
58
59//#define DEBUG
60
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61static uint8_t default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
62static uint8_t default_fcode_tab[MAX_MV*2+1];
63
69cea75f 64void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
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65 const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra)
66{
67 int qscale;
68 int shift=0;
69
70 for(qscale=qmin; qscale<=qmax; qscale++){
71 int i;
72 if (dsp->fdct == ff_jpeg_fdct_islow
73#ifdef FAAN_POSTSCALE
74 || dsp->fdct == ff_faandct
75#endif
76 ) {
77 for(i=0;i<64;i++) {
78 const int j= dsp->idct_permutation[i];
79 /* 16 <= qscale * quant_matrix[i] <= 7905 */
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80 /* 19952 <= ff_aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
81 /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1 << 36) / 249205026 */
82 /* 3444240 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
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83
84 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) /
85 (qscale * quant_matrix[j]));
86 }
87 } else if (dsp->fdct == fdct_ifast
88#ifndef FAAN_POSTSCALE
89 || dsp->fdct == ff_faandct
90#endif
91 ) {
92 for(i=0;i<64;i++) {
93 const int j= dsp->idct_permutation[i];
94 /* 16 <= qscale * quant_matrix[i] <= 7905 */
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95 /* 19952 <= ff_aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
96 /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
97 /* 3444240 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
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98
99 qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) /
5bdf124c 100 (ff_aanscales[i] * qscale * quant_matrix[j]));
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101 }
102 } else {
103 for(i=0;i<64;i++) {
104 const int j= dsp->idct_permutation[i];
105 /* We can safely suppose that 16 <= quant_matrix[i] <= 255
106 So 16 <= qscale * quant_matrix[i] <= 7905
107 so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
108 so 32768 >= (1<<19) / (qscale * quant_matrix[i]) >= 67
109 */
110 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / (qscale * quant_matrix[j]));
111// qmat [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
112 qmat16[qscale][0][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[j]);
113
114 if(qmat16[qscale][0][i]==0 || qmat16[qscale][0][i]==128*256) qmat16[qscale][0][i]=128*256-1;
115 qmat16[qscale][1][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][0][i]);
116 }
117 }
118
119 for(i=intra; i<64; i++){
120 int64_t max= 8191;
121 if (dsp->fdct == fdct_ifast
122#ifndef FAAN_POSTSCALE
123 || dsp->fdct == ff_faandct
124#endif
125 ) {
5bdf124c 126 max = (8191LL*ff_aanscales[i]) >> 14;
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127 }
128 while(((max * qmat[qscale][i]) >> shift) > INT_MAX){
129 shift++;
130 }
131 }
132 }
133 if(shift){
134 av_log(NULL, AV_LOG_INFO, "Warning, QMAT_SHIFT is larger than %d, overflows possible\n", QMAT_SHIFT - shift);
135 }
136}
137
138static inline void update_qscale(MpegEncContext *s){
139 s->qscale= (s->lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
140 s->qscale= av_clip(s->qscale, s->avctx->qmin, s->avctx->qmax);
141
142 s->lambda2= (s->lambda*s->lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
143}
144
145void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix){
146 int i;
147
148 if(matrix){
149 put_bits(pb, 1, 1);
150 for(i=0;i<64;i++) {
151 put_bits(pb, 8, matrix[ ff_zigzag_direct[i] ]);
152 }
153 }else
154 put_bits(pb, 1, 0);
155}
156
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157/**
158 * init s->current_picture.qscale_table from s->lambda_table
159 */
160void ff_init_qscale_tab(MpegEncContext *s){
161 int8_t * const qscale_table= s->current_picture.qscale_table;
162 int i;
163
164 for(i=0; i<s->mb_num; i++){
165 unsigned int lam= s->lambda_table[ s->mb_index2xy[i] ];
166 int qp= (lam*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
167 qscale_table[ s->mb_index2xy[i] ]= av_clip(qp, s->avctx->qmin, s->avctx->qmax);
168 }
169}
170
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171static void copy_picture_attributes(MpegEncContext *s, AVFrame *dst, AVFrame *src){
172 int i;
173
174 dst->pict_type = src->pict_type;
175 dst->quality = src->quality;
176 dst->coded_picture_number = src->coded_picture_number;
177 dst->display_picture_number = src->display_picture_number;
178// dst->reference = src->reference;
179 dst->pts = src->pts;
180 dst->interlaced_frame = src->interlaced_frame;
181 dst->top_field_first = src->top_field_first;
182
183 if(s->avctx->me_threshold){
184 if(!src->motion_val[0])
185 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_val not set!\n");
186 if(!src->mb_type)
187 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.mb_type not set!\n");
188 if(!src->ref_index[0])
189 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.ref_index not set!\n");
190 if(src->motion_subsample_log2 != dst->motion_subsample_log2)
191 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_subsample_log2 doesn't match! (%d!=%d)\n",
192 src->motion_subsample_log2, dst->motion_subsample_log2);
193
194 memcpy(dst->mb_type, src->mb_type, s->mb_stride * s->mb_height * sizeof(dst->mb_type[0]));
195
196 for(i=0; i<2; i++){
197 int stride= ((16*s->mb_width )>>src->motion_subsample_log2) + 1;
198 int height= ((16*s->mb_height)>>src->motion_subsample_log2);
199
200 if(src->motion_val[i] && src->motion_val[i] != dst->motion_val[i]){
201 memcpy(dst->motion_val[i], src->motion_val[i], 2*stride*height*sizeof(int16_t));
202 }
203 if(src->ref_index[i] && src->ref_index[i] != dst->ref_index[i]){
fc4a2d1e 204 memcpy(dst->ref_index[i], src->ref_index[i], s->mb_stride*4*s->mb_height*sizeof(int8_t));
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205 }
206 }
207 }
208}
209
210static void update_duplicate_context_after_me(MpegEncContext *dst, MpegEncContext *src){
211#define COPY(a) dst->a= src->a
212 COPY(pict_type);
213 COPY(current_picture);
214 COPY(f_code);
215 COPY(b_code);
216 COPY(qscale);
217 COPY(lambda);
218 COPY(lambda2);
219 COPY(picture_in_gop_number);
220 COPY(gop_picture_number);
221 COPY(frame_pred_frame_dct); //FIXME don't set in encode_header
222 COPY(progressive_frame); //FIXME don't set in encode_header
223 COPY(partitioned_frame); //FIXME don't set in encode_header
224#undef COPY
225}
226
227/**
228 * sets the given MpegEncContext to defaults for encoding.
229 * the changed fields will not depend upon the prior state of the MpegEncContext.
230 */
231static void MPV_encode_defaults(MpegEncContext *s){
232 int i;
233 MPV_common_defaults(s);
234
235 for(i=-16; i<16; i++){
236 default_fcode_tab[i + MAX_MV]= 1;
237 }
238 s->me.mv_penalty= default_mv_penalty;
239 s->fcode_tab= default_fcode_tab;
240}
241
242/* init video encoder */
98a6fff9 243av_cold int MPV_encode_init(AVCodecContext *avctx)
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244{
245 MpegEncContext *s = avctx->priv_data;
246 int i;
247 int chroma_h_shift, chroma_v_shift;
248
249 MPV_encode_defaults(s);
250
251 switch (avctx->codec_id) {
252 case CODEC_ID_MPEG2VIDEO:
253 if(avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P){
254 av_log(avctx, AV_LOG_ERROR, "only YUV420 and YUV422 are supported\n");
255 return -1;
256 }
257 break;
258 case CODEC_ID_LJPEG:
db613296 259 if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P && avctx->pix_fmt != PIX_FMT_YUVJ444P && avctx->pix_fmt != PIX_FMT_BGRA &&
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260 ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P && avctx->pix_fmt != PIX_FMT_YUV444P) || avctx->strict_std_compliance>FF_COMPLIANCE_UNOFFICIAL)){
261 av_log(avctx, AV_LOG_ERROR, "colorspace not supported in LJPEG\n");
262 return -1;
263 }
264 break;
3ada94ba 265 case CODEC_ID_MJPEG:
dc8465a9 266 if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P &&
2d525ef4 267 ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P) || avctx->strict_std_compliance>FF_COMPLIANCE_UNOFFICIAL)){
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268 av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n");
269 return -1;
270 }
271 break;
272 default:
273 if(avctx->pix_fmt != PIX_FMT_YUV420P){
274 av_log(avctx, AV_LOG_ERROR, "only YUV420 is supported\n");
275 return -1;
276 }
277 }
278
279 switch (avctx->pix_fmt) {
280 case PIX_FMT_YUVJ422P:
281 case PIX_FMT_YUV422P:
282 s->chroma_format = CHROMA_422;
283 break;
284 case PIX_FMT_YUVJ420P:
285 case PIX_FMT_YUV420P:
286 default:
287 s->chroma_format = CHROMA_420;
288 break;
289 }
290
291 s->bit_rate = avctx->bit_rate;
292 s->width = avctx->width;
293 s->height = avctx->height;
294 if(avctx->gop_size > 600 && avctx->strict_std_compliance>FF_COMPLIANCE_EXPERIMENTAL){
295 av_log(avctx, AV_LOG_ERROR, "Warning keyframe interval too large! reducing it ...\n");
296 avctx->gop_size=600;
297 }
298 s->gop_size = avctx->gop_size;
299 s->avctx = avctx;
300 s->flags= avctx->flags;
301 s->flags2= avctx->flags2;
302 s->max_b_frames= avctx->max_b_frames;
303 s->codec_id= avctx->codec->id;
304 s->luma_elim_threshold = avctx->luma_elim_threshold;
305 s->chroma_elim_threshold= avctx->chroma_elim_threshold;
306 s->strict_std_compliance= avctx->strict_std_compliance;
307 s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
308 s->quarter_sample= (avctx->flags & CODEC_FLAG_QPEL)!=0;
309 s->mpeg_quant= avctx->mpeg_quant;
310 s->rtp_mode= !!avctx->rtp_payload_size;
311 s->intra_dc_precision= avctx->intra_dc_precision;
312 s->user_specified_pts = AV_NOPTS_VALUE;
313
314 if (s->gop_size <= 1) {
315 s->intra_only = 1;
316 s->gop_size = 12;
317 } else {
318 s->intra_only = 0;
319 }
320
321 s->me_method = avctx->me_method;
322
323 /* Fixed QSCALE */
324 s->fixed_qscale = !!(avctx->flags & CODEC_FLAG_QSCALE);
325
326 s->adaptive_quant= ( s->avctx->lumi_masking
327 || s->avctx->dark_masking
328 || s->avctx->temporal_cplx_masking
329 || s->avctx->spatial_cplx_masking
330 || s->avctx->p_masking
331 || s->avctx->border_masking
332 || (s->flags&CODEC_FLAG_QP_RD))
333 && !s->fixed_qscale;
334
335 s->obmc= !!(s->flags & CODEC_FLAG_OBMC);
336 s->loop_filter= !!(s->flags & CODEC_FLAG_LOOP_FILTER);
337 s->alternate_scan= !!(s->flags & CODEC_FLAG_ALT_SCAN);
338 s->intra_vlc_format= !!(s->flags2 & CODEC_FLAG2_INTRA_VLC);
339 s->q_scale_type= !!(s->flags2 & CODEC_FLAG2_NON_LINEAR_QUANT);
340
341 if(avctx->rc_max_rate && !avctx->rc_buffer_size){
342 av_log(avctx, AV_LOG_ERROR, "a vbv buffer size is needed, for encoding with a maximum bitrate\n");
343 return -1;
344 }
345
346 if(avctx->rc_min_rate && avctx->rc_max_rate != avctx->rc_min_rate){
347 av_log(avctx, AV_LOG_INFO, "Warning min_rate > 0 but min_rate != max_rate isn't recommended!\n");
348 }
349
350 if(avctx->rc_min_rate && avctx->rc_min_rate > avctx->bit_rate){
351 av_log(avctx, AV_LOG_ERROR, "bitrate below min bitrate\n");
352 return -1;
353 }
354
355 if(avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate){
356 av_log(avctx, AV_LOG_INFO, "bitrate above max bitrate\n");
357 return -1;
358 }
359
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360 if(avctx->rc_max_rate && avctx->rc_max_rate == avctx->bit_rate && avctx->rc_max_rate != avctx->rc_min_rate){
361 av_log(avctx, AV_LOG_INFO, "impossible bitrate constraints, this will fail\n");
362 }
363
b33451ee 364 if(avctx->rc_buffer_size && avctx->bit_rate*(int64_t)avctx->time_base.num > avctx->rc_buffer_size * (int64_t)avctx->time_base.den){
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365 av_log(avctx, AV_LOG_ERROR, "VBV buffer too small for bitrate\n");
366 return -1;
367 }
368
8d39fbd6 369 if(!s->fixed_qscale && avctx->bit_rate*av_q2d(avctx->time_base) > avctx->bit_rate_tolerance){
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370 av_log(avctx, AV_LOG_ERROR, "bitrate tolerance too small for bitrate\n");
371 return -1;
372 }
373
374 if( s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate
375 && (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO)
376 && 90000LL * (avctx->rc_buffer_size-1) > s->avctx->rc_max_rate*0xFFFFLL){
377
378 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");
379 }
380
381 if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4
382 && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P && s->codec_id != CODEC_ID_FLV1){
383 av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n");
384 return -1;
385 }
386
387 if(s->obmc && s->avctx->mb_decision != FF_MB_DECISION_SIMPLE){
388 av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with simple mb decision\n");
389 return -1;
390 }
391
392 if(s->obmc && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P){
393 av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with H263(+)\n");
394 return -1;
395 }
396
397 if(s->quarter_sample && s->codec_id != CODEC_ID_MPEG4){
398 av_log(avctx, AV_LOG_ERROR, "qpel not supported by codec\n");
399 return -1;
400 }
401
402 if(s->data_partitioning && s->codec_id != CODEC_ID_MPEG4){
403 av_log(avctx, AV_LOG_ERROR, "data partitioning not supported by codec\n");
404 return -1;
405 }
406
407 if(s->max_b_frames && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO){
408 av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n");
409 return -1;
410 }
411
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412 if ((s->codec_id == CODEC_ID_MPEG4 || s->codec_id == CODEC_ID_H263 ||
413 s->codec_id == CODEC_ID_H263P) &&
414 (avctx->sample_aspect_ratio.num > 255 || avctx->sample_aspect_ratio.den > 255)) {
415 av_log(avctx, AV_LOG_ERROR, "Invalid pixel aspect ratio %i/%i, limit is 255/255\n",
416 avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den);
417 return -1;
418 }
419
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420 if((s->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN))
421 && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG2VIDEO){
422 av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n");
423 return -1;
424 }
425
426 if(s->mpeg_quant && s->codec_id != CODEC_ID_MPEG4){ //FIXME mpeg2 uses that too
427 av_log(avctx, AV_LOG_ERROR, "mpeg2 style quantization not supported by codec\n");
428 return -1;
429 }
430
febea2f2 431 if((s->flags & CODEC_FLAG_CBP_RD) && !avctx->trellis){
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432 av_log(avctx, AV_LOG_ERROR, "CBP RD needs trellis quant\n");
433 return -1;
434 }
435
436 if((s->flags & CODEC_FLAG_QP_RD) && s->avctx->mb_decision != FF_MB_DECISION_RD){
437 av_log(avctx, AV_LOG_ERROR, "QP RD needs mbd=2\n");
438 return -1;
439 }
440
441 if(s->avctx->scenechange_threshold < 1000000000 && (s->flags & CODEC_FLAG_CLOSED_GOP)){
7ce68923 442 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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BF
443 return -1;
444 }
445
446 if((s->flags2 & CODEC_FLAG2_INTRA_VLC) && s->codec_id != CODEC_ID_MPEG2VIDEO){
447 av_log(avctx, AV_LOG_ERROR, "intra vlc table not supported by codec\n");
448 return -1;
449 }
450
451 if(s->flags & CODEC_FLAG_LOW_DELAY){
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452 if (s->codec_id != CODEC_ID_MPEG2VIDEO){
453 av_log(avctx, AV_LOG_ERROR, "low delay forcing is only available for mpeg2\n");
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454 return -1;
455 }
456 if (s->max_b_frames != 0){
457 av_log(avctx, AV_LOG_ERROR, "b frames cannot be used with low delay\n");
458 return -1;
459 }
460 }
461
462 if(s->q_scale_type == 1){
463 if(s->codec_id != CODEC_ID_MPEG2VIDEO){
464 av_log(avctx, AV_LOG_ERROR, "non linear quant is only available for mpeg2\n");
465 return -1;
466 }
467 if(avctx->qmax > 12){
468 av_log(avctx, AV_LOG_ERROR, "non linear quant only supports qmax <= 12 currently\n");
469 return -1;
470 }
471 }
472
473 if(s->avctx->thread_count > 1 && s->codec_id != CODEC_ID_MPEG4
474 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO
475 && (s->codec_id != CODEC_ID_H263P || !(s->flags & CODEC_FLAG_H263P_SLICE_STRUCT))){
476 av_log(avctx, AV_LOG_ERROR, "multi threaded encoding not supported by codec\n");
477 return -1;
478 }
479
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480 if(s->avctx->thread_count < 1){
481 av_log(avctx, AV_LOG_ERROR, "automatic thread number detection not supported by codec, patch welcome\n");
482 return -1;
483 }
484
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485 if(s->avctx->thread_count > 1)
486 s->rtp_mode= 1;
487
488 if(!avctx->time_base.den || !avctx->time_base.num){
489 av_log(avctx, AV_LOG_ERROR, "framerate not set\n");
490 return -1;
491 }
492
493 i= (INT_MAX/2+128)>>8;
494 if(avctx->me_threshold >= i){
495 av_log(avctx, AV_LOG_ERROR, "me_threshold too large, max is %d\n", i - 1);
496 return -1;
497 }
498 if(avctx->mb_threshold >= i){
499 av_log(avctx, AV_LOG_ERROR, "mb_threshold too large, max is %d\n", i - 1);
500 return -1;
501 }
502
503 if(avctx->b_frame_strategy && (avctx->flags&CODEC_FLAG_PASS2)){
504 av_log(avctx, AV_LOG_INFO, "notice: b_frame_strategy only affects the first pass\n");
505 avctx->b_frame_strategy = 0;
506 }
507
9ce6c138 508 i= av_gcd(avctx->time_base.den, avctx->time_base.num);
3ada94ba
BF
509 if(i > 1){
510 av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n");
511 avctx->time_base.den /= i;
512 avctx->time_base.num /= i;
513// return -1;
514 }
515
bd57cae8 516 if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO || s->codec_id==CODEC_ID_MJPEG){
3ada94ba
BF
517 s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x
518 s->inter_quant_bias= 0;
519 }else{
520 s->intra_quant_bias=0;
521 s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x
522 }
523
524 if(avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
525 s->intra_quant_bias= avctx->intra_quant_bias;
526 if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)
527 s->inter_quant_bias= avctx->inter_quant_bias;
528
529 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift);
530
531 if(avctx->codec_id == CODEC_ID_MPEG4 && s->avctx->time_base.den > (1<<16)-1){
2d777bb7
SS
532 av_log(avctx, AV_LOG_ERROR, "timebase %d/%d not supported by MPEG 4 standard, "
533 "the maximum admitted value for the timebase denominator is %d\n",
534 s->avctx->time_base.num, s->avctx->time_base.den, (1<<16)-1);
3ada94ba
BF
535 return -1;
536 }
537 s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1;
538
539 switch(avctx->codec->id) {
540 case CODEC_ID_MPEG1VIDEO:
541 s->out_format = FMT_MPEG1;
542 s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
543 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
544 break;
545 case CODEC_ID_MPEG2VIDEO:
546 s->out_format = FMT_MPEG1;
547 s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
548 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
549 s->rtp_mode= 1;
550 break;
551 case CODEC_ID_LJPEG:
552 case CODEC_ID_MJPEG:
553 s->out_format = FMT_MJPEG;
554 s->intra_only = 1; /* force intra only for jpeg */
a1a63143 555 if(avctx->codec->id == CODEC_ID_LJPEG && avctx->pix_fmt == PIX_FMT_BGRA){
e0b176ad
MN
556 s->mjpeg_vsample[0] = s->mjpeg_hsample[0] =
557 s->mjpeg_vsample[1] = s->mjpeg_hsample[1] =
558 s->mjpeg_vsample[2] = s->mjpeg_hsample[2] = 1;
a1a63143
MN
559 }else{
560 s->mjpeg_vsample[0] = 2;
561 s->mjpeg_vsample[1] = 2>>chroma_v_shift;
562 s->mjpeg_vsample[2] = 2>>chroma_v_shift;
563 s->mjpeg_hsample[0] = 2;
564 s->mjpeg_hsample[1] = 2>>chroma_h_shift;
565 s->mjpeg_hsample[2] = 2>>chroma_h_shift;
e0b176ad 566 }
49fb20cb 567 if (!(CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER)
3ada94ba
BF
568 || ff_mjpeg_encode_init(s) < 0)
569 return -1;
570 avctx->delay=0;
571 s->low_delay=1;
572 break;
573 case CODEC_ID_H261:
49fb20cb 574 if (!CONFIG_H261_ENCODER) return -1;
3ada94ba
BF
575 if (ff_h261_get_picture_format(s->width, s->height) < 0) {
576 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);
577 return -1;
578 }
579 s->out_format = FMT_H261;
580 avctx->delay=0;
581 s->low_delay=1;
582 break;
583 case CODEC_ID_H263:
49fb20cb 584 if (!CONFIG_H263_ENCODER) return -1;
35e33b9a 585 if (ff_match_2uint16(h263_format, FF_ARRAY_ELEMS(h263_format), s->width, s->height) == 8) {
3ada94ba
BF
586 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);
587 return -1;
588 }
589 s->out_format = FMT_H263;
590 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
591 avctx->delay=0;
592 s->low_delay=1;
593 break;
594 case CODEC_ID_H263P:
595 s->out_format = FMT_H263;
596 s->h263_plus = 1;
597 /* Fx */
598 s->umvplus = (avctx->flags & CODEC_FLAG_H263P_UMV) ? 1:0;
599 s->h263_aic= (avctx->flags & CODEC_FLAG_AC_PRED) ? 1:0;
600 s->modified_quant= s->h263_aic;
601 s->alt_inter_vlc= (avctx->flags & CODEC_FLAG_H263P_AIV) ? 1:0;
602 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
603 s->loop_filter= (avctx->flags & CODEC_FLAG_LOOP_FILTER) ? 1:0;
604 s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
605 s->h263_slice_structured= (s->flags & CODEC_FLAG_H263P_SLICE_STRUCT) ? 1:0;
606
607 /* /Fx */
608 /* These are just to be sure */
609 avctx->delay=0;
610 s->low_delay=1;
611 break;
612 case CODEC_ID_FLV1:
613 s->out_format = FMT_H263;
614 s->h263_flv = 2; /* format = 1; 11-bit codes */
615 s->unrestricted_mv = 1;
616 s->rtp_mode=0; /* don't allow GOB */
617 avctx->delay=0;
618 s->low_delay=1;
619 break;
620 case CODEC_ID_RV10:
621 s->out_format = FMT_H263;
622 avctx->delay=0;
623 s->low_delay=1;
624 break;
625 case CODEC_ID_RV20:
626 s->out_format = FMT_H263;
627 avctx->delay=0;
628 s->low_delay=1;
629 s->modified_quant=1;
630 s->h263_aic=1;
631 s->h263_plus=1;
632 s->loop_filter=1;
53eb458a 633 s->unrestricted_mv= 0;
3ada94ba
BF
634 break;
635 case CODEC_ID_MPEG4:
636 s->out_format = FMT_H263;
637 s->h263_pred = 1;
638 s->unrestricted_mv = 1;
639 s->low_delay= s->max_b_frames ? 0 : 1;
640 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
641 break;
3ada94ba
BF
642 case CODEC_ID_MSMPEG4V2:
643 s->out_format = FMT_H263;
3ada94ba
BF
644 s->h263_pred = 1;
645 s->unrestricted_mv = 1;
646 s->msmpeg4_version= 2;
647 avctx->delay=0;
648 s->low_delay=1;
649 break;
650 case CODEC_ID_MSMPEG4V3:
651 s->out_format = FMT_H263;
3ada94ba
BF
652 s->h263_pred = 1;
653 s->unrestricted_mv = 1;
654 s->msmpeg4_version= 3;
655 s->flipflop_rounding=1;
656 avctx->delay=0;
657 s->low_delay=1;
658 break;
659 case CODEC_ID_WMV1:
660 s->out_format = FMT_H263;
3ada94ba
BF
661 s->h263_pred = 1;
662 s->unrestricted_mv = 1;
663 s->msmpeg4_version= 4;
664 s->flipflop_rounding=1;
665 avctx->delay=0;
666 s->low_delay=1;
667 break;
668 case CODEC_ID_WMV2:
669 s->out_format = FMT_H263;
3ada94ba
BF
670 s->h263_pred = 1;
671 s->unrestricted_mv = 1;
672 s->msmpeg4_version= 5;
673 s->flipflop_rounding=1;
674 avctx->delay=0;
675 s->low_delay=1;
676 break;
677 default:
678 return -1;
679 }
680
681 avctx->has_b_frames= !s->low_delay;
682
683 s->encoding = 1;
684
01bc48f4
BC
685 s->progressive_frame=
686 s->progressive_sequence= !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN));
687
3ada94ba
BF
688 /* init */
689 if (MPV_common_init(s) < 0)
690 return -1;
691
53727262
AJ
692 if(!s->dct_quantize)
693 s->dct_quantize = dct_quantize_c;
694 if(!s->denoise_dct)
695 s->denoise_dct = denoise_dct_c;
696 s->fast_dct_quantize = s->dct_quantize;
febea2f2 697 if(avctx->trellis)
53727262
AJ
698 s->dct_quantize = dct_quantize_trellis_c;
699
49fb20cb 700 if((CONFIG_H263P_ENCODER || CONFIG_RV20_ENCODER) && s->modified_quant)
3ada94ba 701 s->chroma_qscale_table= ff_h263_chroma_qscale_table;
01bc48f4 702
3ada94ba
BF
703 s->quant_precision=5;
704
705 ff_set_cmp(&s->dsp, s->dsp.ildct_cmp, s->avctx->ildct_cmp);
706 ff_set_cmp(&s->dsp, s->dsp.frame_skip_cmp, s->avctx->frame_skip_cmp);
707
49fb20cb 708 if (CONFIG_H261_ENCODER && s->out_format == FMT_H261)
3ada94ba 709 ff_h261_encode_init(s);
f34121f3 710 if (CONFIG_H263_ENCODER && s->out_format == FMT_H263)
3ada94ba 711 h263_encode_init(s);
49fb20cb 712 if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version)
3ada94ba 713 ff_msmpeg4_encode_init(s);
49fb20cb 714 if ((CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
a6bc5731 715 && s->out_format == FMT_MPEG1)
3ada94ba
BF
716 ff_mpeg1_encode_init(s);
717
718 /* init q matrix */
719 for(i=0;i<64;i++) {
720 int j= s->dsp.idct_permutation[i];
49fb20cb 721 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){
3ada94ba
BF
722 s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
723 s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
724 }else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){
725 s->intra_matrix[j] =
726 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
727 }else
728 { /* mpeg1/2 */
729 s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
730 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
731 }
732 if(s->avctx->intra_matrix)
733 s->intra_matrix[j] = s->avctx->intra_matrix[i];
734 if(s->avctx->inter_matrix)
735 s->inter_matrix[j] = s->avctx->inter_matrix[i];
736 }
737
738 /* precompute matrix */
739 /* for mjpeg, we do include qscale in the matrix */
740 if (s->out_format != FMT_MJPEG) {
69cea75f 741 ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
3ada94ba 742 s->intra_matrix, s->intra_quant_bias, avctx->qmin, 31, 1);
69cea75f 743 ff_convert_matrix(&s->dsp, s->q_inter_matrix, s->q_inter_matrix16,
3ada94ba
BF
744 s->inter_matrix, s->inter_quant_bias, avctx->qmin, 31, 0);
745 }
746
747 if(ff_rate_control_init(s) < 0)
748 return -1;
749
750 return 0;
751}
752
98a6fff9 753av_cold int MPV_encode_end(AVCodecContext *avctx)
3ada94ba
BF
754{
755 MpegEncContext *s = avctx->priv_data;
756
757 ff_rate_control_uninit(s);
758
759 MPV_common_end(s);
49fb20cb 760 if ((CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER) && s->out_format == FMT_MJPEG)
3ada94ba
BF
761 ff_mjpeg_encode_close(s);
762
763 av_freep(&avctx->extradata);
764
765 return 0;
766}
767
768static int get_sae(uint8_t *src, int ref, int stride){
769 int x,y;
770 int acc=0;
771
772 for(y=0; y<16; y++){
773 for(x=0; x<16; x++){
774 acc+= FFABS(src[x+y*stride] - ref);
775 }
776 }
777
778 return acc;
779}
780
781static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride){
782 int x, y, w, h;
783 int acc=0;
784
785 w= s->width &~15;
786 h= s->height&~15;
787
788 for(y=0; y<h; y+=16){
789 for(x=0; x<w; x+=16){
790 int offset= x + y*stride;
791 int sad = s->dsp.sad[0](NULL, src + offset, ref + offset, stride, 16);
792 int mean= (s->dsp.pix_sum(src + offset, stride) + 128)>>8;
793 int sae = get_sae(src + offset, mean, stride);
794
795 acc+= sae + 500 < sad;
796 }
797 }
798 return acc;
799}
800
801
802static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
803 AVFrame *pic=NULL;
804 int64_t pts;
805 int i;
806 const int encoding_delay= s->max_b_frames;
807 int direct=1;
808
809 if(pic_arg){
810 pts= pic_arg->pts;
811 pic_arg->display_picture_number= s->input_picture_number++;
812
813 if(pts != AV_NOPTS_VALUE){
814 if(s->user_specified_pts != AV_NOPTS_VALUE){
815 int64_t time= pts;
816 int64_t last= s->user_specified_pts;
817
818 if(time <= last){
819 av_log(s->avctx, AV_LOG_ERROR, "Error, Invalid timestamp=%"PRId64", last=%"PRId64"\n", pts, s->user_specified_pts);
820 return -1;
821 }
822 }
823 s->user_specified_pts= pts;
824 }else{
825 if(s->user_specified_pts != AV_NOPTS_VALUE){
826 s->user_specified_pts=
827 pts= s->user_specified_pts + 1;
828 av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%"PRId64")\n", pts);
829 }else{
830 pts= pic_arg->display_picture_number;
831 }
832 }
833 }
834
835 if(pic_arg){
836 if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0;
837 if(pic_arg->linesize[0] != s->linesize) direct=0;
838 if(pic_arg->linesize[1] != s->uvlinesize) direct=0;
839 if(pic_arg->linesize[2] != s->uvlinesize) direct=0;
840
841// av_log(AV_LOG_DEBUG, "%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize);
842
843 if(direct){
844 i= ff_find_unused_picture(s, 1);
845
846 pic= (AVFrame*)&s->picture[i];
847 pic->reference= 3;
848
849 for(i=0; i<4; i++){
850 pic->data[i]= pic_arg->data[i];
851 pic->linesize[i]= pic_arg->linesize[i];
852 }
be548816
PP
853 if(ff_alloc_picture(s, (Picture*)pic, 1) < 0){
854 return -1;
855 }
3ada94ba
BF
856 }else{
857 i= ff_find_unused_picture(s, 0);
858
859 pic= (AVFrame*)&s->picture[i];
860 pic->reference= 3;
861
be548816
PP
862 if(ff_alloc_picture(s, (Picture*)pic, 0) < 0){
863 return -1;
864 }
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);
71a861cf 947 AVCodecContext *c = avcodec_alloc_context3(NULL);
3ada94ba
BF
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();
975a1447
SS
959 p_lambda= s->last_lambda_for[AV_PICTURE_TYPE_P]; //s->next_picture_ptr->quality;
960 b_lambda= s->last_lambda_for[AV_PICTURE_TYPE_B]; //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
0b950fe2 976 if (avcodec_open2(c, codec, NULL) < 0)
3ada94ba
BF
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
975a1447 1015 input[0].pict_type= AV_PICTURE_TYPE_I;
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
975a1447 1023 input[i+1].pict_type= is_p ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_B;
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
be548816 1054static int select_input_picture(MpegEncContext *s){
3ada94ba
BF
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];
975a1447 1065 s->reordered_input_picture[0]->pict_type= AV_PICTURE_TYPE_I;
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]){
975a1447 1100 s->rc_context.entry[pict_num-1].new_pict_type = AV_PICTURE_TYPE_P;
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;
975a1447 1144 if(type && type != AV_PICTURE_TYPE_B)
3ada94ba
BF
1145 b_frames= i;
1146 }
975a1447 1147 if(s->input_picture[b_frames]->pict_type == AV_PICTURE_TYPE_B && 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;
975a1447 1157 s->input_picture[b_frames]->pict_type= AV_PICTURE_TYPE_I;
3ada94ba
BF
1158 }
1159 }
1160
1161 if( (s->flags & CODEC_FLAG_CLOSED_GOP)
1162 && b_frames
975a1447 1163 && s->input_picture[b_frames]->pict_type== AV_PICTURE_TYPE_I)
3ada94ba
BF
1164 b_frames--;
1165
1166 s->reordered_input_picture[0]= s->input_picture[b_frames];
975a1447
SS
1167 if(s->reordered_input_picture[0]->pict_type != AV_PICTURE_TYPE_I)
1168 s->reordered_input_picture[0]->pict_type= AV_PICTURE_TYPE_P;
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];
975a1447 1172 s->reordered_input_picture[i+1]->pict_type= AV_PICTURE_TYPE_B;
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]){
975a1447 1179 s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=AV_PICTURE_TYPE_B ? 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;
be548816
PP
1190 if(ff_alloc_picture(s, pic, 0) < 0){
1191 return -1;
1192 }
3ada94ba
BF
1193
1194 /* mark us unused / free shared pic */
1195 if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_INTERNAL)
1196 s->avctx->release_buffer(s->avctx, (AVFrame*)s->reordered_input_picture[0]);
1197 for(i=0; i<4; i++)
1198 s->reordered_input_picture[0]->data[i]= NULL;
1199 s->reordered_input_picture[0]->type= 0;
1200
1201 copy_picture_attributes(s, (AVFrame*)pic, (AVFrame*)s->reordered_input_picture[0]);
1202
1203 s->current_picture_ptr= pic;
1204 }else{
1205 // input is not a shared pix -> reuse buffer for current_pix
1206
1207 assert( s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
1208 || s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1209
1210 s->current_picture_ptr= s->reordered_input_picture[0];
1211 for(i=0; i<4; i++){
1212 s->new_picture.data[i]+= INPLACE_OFFSET;
1213 }
1214 }
8d2fc163 1215 ff_copy_picture(&s->current_picture, s->current_picture_ptr);
3ada94ba
BF
1216
1217 s->picture_number= s->new_picture.display_picture_number;
1218//printf("dpn:%d\n", s->picture_number);
1219 }else{
1220 memset(&s->new_picture, 0, sizeof(Picture));
1221 }
be548816 1222 return 0;
3ada94ba
BF
1223}
1224
1225int MPV_encode_picture(AVCodecContext *avctx,
1226 unsigned char *buf, int buf_size, void *data)
1227{
1228 MpegEncContext *s = avctx->priv_data;
1229 AVFrame *pic_arg = data;
83a8b300 1230 int i, stuffing_count, context_count = avctx->thread_count;
3ada94ba 1231
6a9c8594 1232 for(i=0; i<context_count; i++){
3ada94ba
BF
1233 int start_y= s->thread_context[i]->start_mb_y;
1234 int end_y= s->thread_context[i]-> end_mb_y;
1235 int h= s->mb_height;
1236 uint8_t *start= buf + (size_t)(((int64_t) buf_size)*start_y/h);
1237 uint8_t *end = buf + (size_t)(((int64_t) buf_size)* end_y/h);
1238
1239 init_put_bits(&s->thread_context[i]->pb, start, end - start);
1240 }
1241
1242 s->picture_in_gop_number++;
1243
1244 if(load_input_picture(s, pic_arg) < 0)
1245 return -1;
1246
be548816
PP
1247 if(select_input_picture(s) < 0){
1248 return -1;
1249 }
3ada94ba
BF
1250
1251 /* output? */
1252 if(s->new_picture.data[0]){
1253 s->pict_type= s->new_picture.pict_type;
1254//emms_c();
1255//printf("qs:%f %f %d\n", s->new_picture.quality, s->current_picture.quality, s->qscale);
1256 MPV_frame_start(s, avctx);
1257vbv_retry:
1258 if (encode_picture(s, s->picture_number) < 0)
1259 return -1;
1260
3ada94ba
BF
1261 avctx->header_bits = s->header_bits;
1262 avctx->mv_bits = s->mv_bits;
1263 avctx->misc_bits = s->misc_bits;
1264 avctx->i_tex_bits = s->i_tex_bits;
1265 avctx->p_tex_bits = s->p_tex_bits;
1266 avctx->i_count = s->i_count;
1267 avctx->p_count = s->mb_num - s->i_count - s->skip_count; //FIXME f/b_count in avctx
1268 avctx->skip_count = s->skip_count;
1269
1270 MPV_frame_end(s);
1271
49fb20cb 1272 if (CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG)
3ada94ba
BF
1273 ff_mjpeg_encode_picture_trailer(s);
1274
1275 if(avctx->rc_buffer_size){
1276 RateControlContext *rcc= &s->rc_context;
3bff4d8b 1277 int max_size= rcc->buffer_index * avctx->rc_max_available_vbv_use;
3ada94ba
BF
1278
1279 if(put_bits_count(&s->pb) > max_size && s->lambda < s->avctx->lmax){
1280 s->next_lambda= FFMAX(s->lambda+1, s->lambda*(s->qscale+1) / s->qscale);
1281 if(s->adaptive_quant){
1282 int i;
1283 for(i=0; i<s->mb_height*s->mb_stride; i++)
1284 s->lambda_table[i]= FFMAX(s->lambda_table[i]+1, s->lambda_table[i]*(s->qscale+1) / s->qscale);
1285 }
1286 s->mb_skipped = 0; //done in MPV_frame_start()
975a1447 1287 if(s->pict_type==AV_PICTURE_TYPE_P){ //done in encode_picture() so we must undo it
3ada94ba
BF
1288 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
1289 s->no_rounding ^= 1;
1290 }
975a1447 1291 if(s->pict_type!=AV_PICTURE_TYPE_B){
3ada94ba
BF
1292 s->time_base= s->last_time_base;
1293 s->last_non_b_time= s->time - s->pp_time;
1294 }
1295// av_log(NULL, AV_LOG_ERROR, "R:%d ", s->next_lambda);
6a9c8594 1296 for(i=0; i<context_count; i++){
3ada94ba
BF
1297 PutBitContext *pb= &s->thread_context[i]->pb;
1298 init_put_bits(pb, pb->buf, pb->buf_end - pb->buf);
1299 }
1300 goto vbv_retry;
1301 }
1302
1303 assert(s->avctx->rc_max_rate);
1304 }
1305
1306 if(s->flags&CODEC_FLAG_PASS1)
1307 ff_write_pass1_stats(s);
1308
1309 for(i=0; i<4; i++){
1310 s->current_picture_ptr->error[i]= s->current_picture.error[i];
1311 avctx->error[i] += s->current_picture_ptr->error[i];
1312 }
1313
1314 if(s->flags&CODEC_FLAG_PASS1)
1315 assert(avctx->header_bits + avctx->mv_bits + avctx->misc_bits + avctx->i_tex_bits + avctx->p_tex_bits == put_bits_count(&s->pb));
1316 flush_put_bits(&s->pb);
1317 s->frame_bits = put_bits_count(&s->pb);
1318
1319 stuffing_count= ff_vbv_update(s, s->frame_bits);
1320 if(stuffing_count){
1321 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < stuffing_count + 50){
1322 av_log(s->avctx, AV_LOG_ERROR, "stuffing too large\n");
1323 return -1;
1324 }
1325
1326 switch(s->codec_id){
1327 case CODEC_ID_MPEG1VIDEO:
1328 case CODEC_ID_MPEG2VIDEO:
1329 while(stuffing_count--){
1330 put_bits(&s->pb, 8, 0);
1331 }
1332 break;
1333 case CODEC_ID_MPEG4:
1334 put_bits(&s->pb, 16, 0);
1335 put_bits(&s->pb, 16, 0x1C3);
1336 stuffing_count -= 4;
1337 while(stuffing_count--){
1338 put_bits(&s->pb, 8, 0xFF);
1339 }
1340 break;
1341 default:
1342 av_log(s->avctx, AV_LOG_ERROR, "vbv buffer overflow\n");
1343 }
1344 flush_put_bits(&s->pb);
1345 s->frame_bits = put_bits_count(&s->pb);
1346 }
1347
1348 /* update mpeg1/2 vbv_delay for CBR */
1349 if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && s->out_format == FMT_MPEG1
1350 && 90000LL * (avctx->rc_buffer_size-1) <= s->avctx->rc_max_rate*0xFFFFLL){
4601e76a
MN
1351 int vbv_delay, min_delay;
1352 double inbits = s->avctx->rc_max_rate*av_q2d(s->avctx->time_base);
1353 int minbits= s->frame_bits - 8*(s->vbv_delay_ptr - s->pb.buf - 1);
1354 double bits = s->rc_context.buffer_index + minbits - inbits;
1355
1356 if(bits<0)
1357 av_log(s->avctx, AV_LOG_ERROR, "Internal error, negative bits\n");
3ada94ba
BF
1358
1359 assert(s->repeat_first_field==0);
1360
4601e76a
MN
1361 vbv_delay= bits * 90000 / s->avctx->rc_max_rate;
1362 min_delay= (minbits * 90000LL + s->avctx->rc_max_rate - 1)/ s->avctx->rc_max_rate;
1363
1364 vbv_delay= FFMAX(vbv_delay, min_delay);
1365
3ada94ba
BF
1366 assert(vbv_delay < 0xFFFF);
1367
1368 s->vbv_delay_ptr[0] &= 0xF8;
1369 s->vbv_delay_ptr[0] |= vbv_delay>>13;
1370 s->vbv_delay_ptr[1] = vbv_delay>>5;
1371 s->vbv_delay_ptr[2] &= 0x07;
1372 s->vbv_delay_ptr[2] |= vbv_delay<<3;
55bad0c6 1373 avctx->vbv_delay = vbv_delay*300;
3ada94ba
BF
1374 }
1375 s->total_bits += s->frame_bits;
1376 avctx->frame_bits = s->frame_bits;
1377 }else{
fb53b4a0 1378 assert((put_bits_ptr(&s->pb) == s->pb.buf));
3ada94ba
BF
1379 s->frame_bits=0;
1380 }
1381 assert((s->frame_bits&7)==0);
1382
1383 return s->frame_bits/8;
1384}
1385
1386static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold)
1387{
1388 static const char tab[64]=
1389 {3,2,2,1,1,1,1,1,
1390 1,1,1,1,1,1,1,1,
1391 1,1,1,1,1,1,1,1,
1392 0,0,0,0,0,0,0,0,
1393 0,0,0,0,0,0,0,0,
1394 0,0,0,0,0,0,0,0,
1395 0,0,0,0,0,0,0,0,
1396 0,0,0,0,0,0,0,0};
1397 int score=0;
1398 int run=0;
1399 int i;
1400 DCTELEM *block= s->block[n];
1401 const int last_index= s->block_last_index[n];
1402 int skip_dc;
1403
1404 if(threshold<0){
1405 skip_dc=0;
1406 threshold= -threshold;
1407 }else
1408 skip_dc=1;
1409
bd107136 1410 /* Are all we could set to zero already zero? */
3ada94ba
BF
1411 if(last_index<=skip_dc - 1) return;
1412
1413 for(i=0; i<=last_index; i++){
1414 const int j = s->intra_scantable.permutated[i];
1415 const int level = FFABS(block[j]);
1416 if(level==1){
1417 if(skip_dc && i==0) continue;
1418 score+= tab[run];
1419 run=0;
1420 }else if(level>1){
1421 return;
1422 }else{
1423 run++;
1424 }
1425 }
1426 if(score >= threshold) return;
1427 for(i=skip_dc; i<=last_index; i++){
1428 const int j = s->intra_scantable.permutated[i];
1429 block[j]=0;
1430 }
1431 if(block[0]) s->block_last_index[n]= 0;
1432 else s->block_last_index[n]= -1;
1433}
1434
1435static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1436{
1437 int i;
1438 const int maxlevel= s->max_qcoeff;
1439 const int minlevel= s->min_qcoeff;
1440 int overflow=0;
1441
1442 if(s->mb_intra){
1443 i=1; //skip clipping of intra dc
1444 }else
1445 i=0;
1446
1447 for(;i<=last_index; i++){
1448 const int j= s->intra_scantable.permutated[i];
1449 int level = block[j];
1450
1451 if (level>maxlevel){
1452 level=maxlevel;
1453 overflow++;
1454 }else if(level<minlevel){
1455 level=minlevel;
1456 overflow++;
1457 }
1458
1459 block[j]= level;
1460 }
1461
1462 if(overflow && s->avctx->mb_decision == FF_MB_DECISION_SIMPLE)
1463 av_log(s->avctx, AV_LOG_INFO, "warning, clipping %d dct coefficients to %d..%d\n", overflow, minlevel, maxlevel);
1464}
1465
f073a393 1466static void get_visual_weight(int16_t *weight, uint8_t *ptr, int stride){
3ada94ba
BF
1467 int x, y;
1468//FIXME optimize
1469 for(y=0; y<8; y++){
1470 for(x=0; x<8; x++){
1471 int x2, y2;
1472 int sum=0;
1473 int sqr=0;
1474 int count=0;
1475
1476 for(y2= FFMAX(y-1, 0); y2 < FFMIN(8, y+2); y2++){
1477 for(x2= FFMAX(x-1, 0); x2 < FFMIN(8, x+2); x2++){
1478 int v= ptr[x2 + y2*stride];
1479 sum += v;
1480 sqr += v*v;
1481 count++;
1482 }
1483 }
1484 weight[x + 8*y]= (36*ff_sqrt(count*sqr - sum*sum)) / count;
1485 }
1486 }
1487}
1488
1489static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count)
1490{
1491 int16_t weight[8][64];
1492 DCTELEM orig[8][64];
1493 const int mb_x= s->mb_x;
1494 const int mb_y= s->mb_y;
1495 int i;
1496 int skip_dct[8];
1497 int dct_offset = s->linesize*8; //default for progressive frames
1498 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1499 int wrap_y, wrap_c;
1500
1501 for(i=0; i<mb_block_count; i++) skip_dct[i]=s->skipdct;
1502
1503 if(s->adaptive_quant){
1504 const int last_qp= s->qscale;
1505 const int mb_xy= mb_x + mb_y*s->mb_stride;
1506
1507 s->lambda= s->lambda_table[mb_xy];
1508 update_qscale(s);
1509
1510 if(!(s->flags&CODEC_FLAG_QP_RD)){
1511 s->qscale= s->current_picture_ptr->qscale_table[mb_xy];
1512 s->dquant= s->qscale - last_qp;
1513
1514 if(s->out_format==FMT_H263){
1515 s->dquant= av_clip(s->dquant, -2, 2);
1516
1517 if(s->codec_id==CODEC_ID_MPEG4){
1518 if(!s->mb_intra){
975a1447 1519 if(s->pict_type == AV_PICTURE_TYPE_B){
3ada94ba
BF
1520 if(s->dquant&1 || s->mv_dir&MV_DIRECT)
1521 s->dquant= 0;
1522 }
1523 if(s->mv_type==MV_TYPE_8X8)
1524 s->dquant=0;
1525 }
1526 }
1527 }
1528 }
1529 ff_set_qscale(s, last_qp + s->dquant);
1530 }else if(s->flags&CODEC_FLAG_QP_RD)
1531 ff_set_qscale(s, s->qscale + s->dquant);
1532
1533 wrap_y = s->linesize;
1534 wrap_c = s->uvlinesize;
1535 ptr_y = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
1536 ptr_cb = s->new_picture.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1537 ptr_cr = s->new_picture.data[2] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1538
1539 if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
1540 uint8_t *ebuf= s->edge_emu_buffer + 32;
2e279598 1541 s->dsp.emulated_edge_mc(ebuf , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width , s->height);
3ada94ba 1542 ptr_y= ebuf;
2e279598 1543 s->dsp.emulated_edge_mc(ebuf+18*wrap_y , ptr_cb, wrap_c, 8, mb_block_height, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
3ada94ba 1544 ptr_cb= ebuf+18*wrap_y;
2e279598 1545 s->dsp.emulated_edge_mc(ebuf+18*wrap_y+8, ptr_cr, wrap_c, 8, mb_block_height, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
3ada94ba
BF
1546 ptr_cr= ebuf+18*wrap_y+8;
1547 }
1548
1549 if (s->mb_intra) {
1550 if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1551 int progressive_score, interlaced_score;
1552
1553 s->interlaced_dct=0;
1554 progressive_score= s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y, 8)
1555 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y*8, NULL, wrap_y, 8) - 400;
1556
1557 if(progressive_score > 0){
1558 interlaced_score = s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y*2, 8)
1559 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y , NULL, wrap_y*2, 8);
1560 if(progressive_score > interlaced_score){
1561 s->interlaced_dct=1;
1562
1563 dct_offset= wrap_y;
1564 wrap_y<<=1;
1565 if (s->chroma_format == CHROMA_422)
1566 wrap_c<<=1;
1567 }
1568 }
1569 }
1570
1571 s->dsp.get_pixels(s->block[0], ptr_y , wrap_y);
1572 s->dsp.get_pixels(s->block[1], ptr_y + 8, wrap_y);
1573 s->dsp.get_pixels(s->block[2], ptr_y + dct_offset , wrap_y);
1574 s->dsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y);
1575
1576 if(s->flags&CODEC_FLAG_GRAY){
1577 skip_dct[4]= 1;
1578 skip_dct[5]= 1;
1579 }else{
1580 s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c);
1581 s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c);
1582 if(!s->chroma_y_shift){ /* 422 */
1583 s->dsp.get_pixels(s->block[6], ptr_cb + (dct_offset>>1), wrap_c);
1584 s->dsp.get_pixels(s->block[7], ptr_cr + (dct_offset>>1), wrap_c);
1585 }
1586 }
1587 }else{
1588 op_pixels_func (*op_pix)[4];
1589 qpel_mc_func (*op_qpix)[16];
1590 uint8_t *dest_y, *dest_cb, *dest_cr;
1591
1592 dest_y = s->dest[0];
1593 dest_cb = s->dest[1];
1594 dest_cr = s->dest[2];
1595
975a1447 1596 if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
3ada94ba
BF
1597 op_pix = s->dsp.put_pixels_tab;
1598 op_qpix= s->dsp.put_qpel_pixels_tab;
1599 }else{
1600 op_pix = s->dsp.put_no_rnd_pixels_tab;
1601 op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab;
1602 }
1603
1604 if (s->mv_dir & MV_DIR_FORWARD) {
1605 MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix);
1606 op_pix = s->dsp.avg_pixels_tab;
1607 op_qpix= s->dsp.avg_qpel_pixels_tab;
1608 }
1609 if (s->mv_dir & MV_DIR_BACKWARD) {
1610 MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix);
1611 }
1612
1613 if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1614 int progressive_score, interlaced_score;
1615
1616 s->interlaced_dct=0;
1617 progressive_score= s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y, 8)
1618 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y*8, ptr_y + wrap_y*8, wrap_y, 8) - 400;
1619
1620 if(s->avctx->ildct_cmp == FF_CMP_VSSE) progressive_score -= 400;
1621
1622 if(progressive_score>0){
1623 interlaced_score = s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y*2, 8)
1624 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y , ptr_y + wrap_y , wrap_y*2, 8);
1625
1626 if(progressive_score > interlaced_score){
1627 s->interlaced_dct=1;
1628
1629 dct_offset= wrap_y;
1630 wrap_y<<=1;
1631 if (s->chroma_format == CHROMA_422)
1632 wrap_c<<=1;
1633 }
1634 }
1635 }
1636
1637 s->dsp.diff_pixels(s->block[0], ptr_y , dest_y , wrap_y);
1638 s->dsp.diff_pixels(s->block[1], ptr_y + 8, dest_y + 8, wrap_y);
1639 s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset , dest_y + dct_offset , wrap_y);
1640 s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y);
1641
1642 if(s->flags&CODEC_FLAG_GRAY){
1643 skip_dct[4]= 1;
1644 skip_dct[5]= 1;
1645 }else{
1646 s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
1647 s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
1648 if(!s->chroma_y_shift){ /* 422 */
1649 s->dsp.diff_pixels(s->block[6], ptr_cb + (dct_offset>>1), dest_cb + (dct_offset>>1), wrap_c);
1650 s->dsp.diff_pixels(s->block[7], ptr_cr + (dct_offset>>1), dest_cr + (dct_offset>>1), wrap_c);
1651 }
1652 }
1653 /* pre quantization */
1654 if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){
1655 //FIXME optimize
1656 if(s->dsp.sad[1](NULL, ptr_y , dest_y , wrap_y, 8) < 20*s->qscale) skip_dct[0]= 1;
1657 if(s->dsp.sad[1](NULL, ptr_y + 8, dest_y + 8, wrap_y, 8) < 20*s->qscale) skip_dct[1]= 1;
1658 if(s->dsp.sad[1](NULL, ptr_y +dct_offset , dest_y +dct_offset , wrap_y, 8) < 20*s->qscale) skip_dct[2]= 1;
1659 if(s->dsp.sad[1](NULL, ptr_y +dct_offset+ 8, dest_y +dct_offset+ 8, wrap_y, 8) < 20*s->qscale) skip_dct[3]= 1;
1660 if(s->dsp.sad[1](NULL, ptr_cb , dest_cb , wrap_c, 8) < 20*s->qscale) skip_dct[4]= 1;
1661 if(s->dsp.sad[1](NULL, ptr_cr , dest_cr , wrap_c, 8) < 20*s->qscale) skip_dct[5]= 1;
1662 if(!s->chroma_y_shift){ /* 422 */
1663 if(s->dsp.sad[1](NULL, ptr_cb +(dct_offset>>1), dest_cb +(dct_offset>>1), wrap_c, 8) < 20*s->qscale) skip_dct[6]= 1;
1664 if(s->dsp.sad[1](NULL, ptr_cr +(dct_offset>>1), dest_cr +(dct_offset>>1), wrap_c, 8) < 20*s->qscale) skip_dct[7]= 1;
1665 }
1666 }
1667 }
1668
1669 if(s->avctx->quantizer_noise_shaping){
f073a393
DB
1670 if(!skip_dct[0]) get_visual_weight(weight[0], ptr_y , wrap_y);
1671 if(!skip_dct[1]) get_visual_weight(weight[1], ptr_y + 8, wrap_y);
1672 if(!skip_dct[2]) get_visual_weight(weight[2], ptr_y + dct_offset , wrap_y);
1673 if(!skip_dct[3]) get_visual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y);
1674 if(!skip_dct[4]) get_visual_weight(weight[4], ptr_cb , wrap_c);
1675 if(!skip_dct[5]) get_visual_weight(weight[5], ptr_cr , wrap_c);
3ada94ba 1676 if(!s->chroma_y_shift){ /* 422 */
f073a393
DB
1677 if(!skip_dct[6]) get_visual_weight(weight[6], ptr_cb + (dct_offset>>1), wrap_c);
1678 if(!skip_dct[7]) get_visual_weight(weight[7], ptr_cr + (dct_offset>>1), wrap_c);
3ada94ba
BF
1679 }
1680 memcpy(orig[0], s->block[0], sizeof(DCTELEM)*64*mb_block_count);
1681 }
1682
1683 /* DCT & quantize */
1684 assert(s->out_format!=FMT_MJPEG || s->qscale==8);
1685 {
1686 for(i=0;i<mb_block_count;i++) {
1687 if(!skip_dct[i]){
1688 int overflow;
1689 s->block_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow);
1690 // FIXME we could decide to change to quantizer instead of clipping
1691 // JS: I don't think that would be a good idea it could lower quality instead
1692 // of improve it. Just INTRADC clipping deserves changes in quantizer
1693 if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1694 }else
1695 s->block_last_index[i]= -1;
1696 }
1697 if(s->avctx->quantizer_noise_shaping){
1698 for(i=0;i<mb_block_count;i++) {
1699 if(!skip_dct[i]){
1700 s->block_last_index[i] = dct_quantize_refine(s, s->block[i], weight[i], orig[i], i, s->qscale);
1701 }
1702 }
1703 }
1704
1705 if(s->luma_elim_threshold && !s->mb_intra)
1706 for(i=0; i<4; i++)
1707 dct_single_coeff_elimination(s, i, s->luma_elim_threshold);
1708 if(s->chroma_elim_threshold && !s->mb_intra)
1709 for(i=4; i<mb_block_count; i++)
1710 dct_single_coeff_elimination(s, i, s->chroma_elim_threshold);
1711
1712 if(s->flags & CODEC_FLAG_CBP_RD){
1713 for(i=0;i<mb_block_count;i++) {
1714 if(s->block_last_index[i] == -1)
1715 s->coded_score[i]= INT_MAX/256;
1716 }
1717 }
1718 }
1719
1720 if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
1721 s->block_last_index[4]=
1722 s->block_last_index[5]= 0;
1723 s->block[4][0]=
1724 s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale;
1725 }
1726
1727 //non c quantize code returns incorrect block_last_index FIXME
1728 if(s->alternate_scan && s->dct_quantize != dct_quantize_c){
1729 for(i=0; i<mb_block_count; i++){
1730 int j;
1731 if(s->block_last_index[i]>0){
1732 for(j=63; j>0; j--){
1733 if(s->block[i][ s->intra_scantable.permutated[j] ]) break;
1734 }
1735 s->block_last_index[i]= j;
1736 }
1737 }
1738 }
1739
1740 /* huffman encode */
1741 switch(s->codec_id){ //FIXME funct ptr could be slightly faster
1742 case CODEC_ID_MPEG1VIDEO:
1743 case CODEC_ID_MPEG2VIDEO:
49fb20cb 1744 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
56be950a
AJ
1745 mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1746 break;
3ada94ba 1747 case CODEC_ID_MPEG4:
49fb20cb 1748 if (CONFIG_MPEG4_ENCODER)
674eeb5f
AJ
1749 mpeg4_encode_mb(s, s->block, motion_x, motion_y);
1750 break;
3ada94ba
BF
1751 case CODEC_ID_MSMPEG4V2:
1752 case CODEC_ID_MSMPEG4V3:
1753 case CODEC_ID_WMV1:
49fb20cb 1754 if (CONFIG_MSMPEG4_ENCODER)
3ada94ba
BF
1755 msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1756 break;
1757 case CODEC_ID_WMV2:
49fb20cb 1758 if (CONFIG_WMV2_ENCODER)
3ada94ba
BF
1759 ff_wmv2_encode_mb(s, s->block, motion_x, motion_y);
1760 break;
1761 case CODEC_ID_H261:
49fb20cb 1762 if (CONFIG_H261_ENCODER)
3ada94ba
BF
1763 ff_h261_encode_mb(s, s->block, motion_x, motion_y);
1764 break;
1765 case CODEC_ID_H263:
1766 case CODEC_ID_H263P:
1767 case CODEC_ID_FLV1:
1768 case CODEC_ID_RV10:
1769 case CODEC_ID_RV20:
0bd48530 1770 if (CONFIG_H263_ENCODER)
674eeb5f
AJ
1771 h263_encode_mb(s, s->block, motion_x, motion_y);
1772 break;
3ada94ba 1773 case CODEC_ID_MJPEG:
49fb20cb 1774 if (CONFIG_MJPEG_ENCODER)
3ada94ba
BF
1775 ff_mjpeg_encode_mb(s, s->block);
1776 break;
1777 default:
1778 assert(0);
1779 }
1780}
1781
1782static av_always_inline void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
1783{
1784 if (s->chroma_format == CHROMA_420) encode_mb_internal(s, motion_x, motion_y, 8, 6);
1785 else encode_mb_internal(s, motion_x, motion_y, 16, 8);
1786}
1787
3ada94ba
BF
1788static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1789 int i;
1790
be73d76b 1791 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster than a loop?
3ada94ba
BF
1792
1793 /* mpeg1 */
1794 d->mb_skip_run= s->mb_skip_run;
1795 for(i=0; i<3; i++)
1796 d->last_dc[i]= s->last_dc[i];
1797
1798 /* statistics */
1799 d->mv_bits= s->mv_bits;
1800 d->i_tex_bits= s->i_tex_bits;
1801 d->p_tex_bits= s->p_tex_bits;
1802 d->i_count= s->i_count;
1803 d->f_count= s->f_count;
1804 d->b_count= s->b_count;
1805 d->skip_count= s->skip_count;
1806 d->misc_bits= s->misc_bits;
1807 d->last_bits= 0;
1808
1809 d->mb_skipped= 0;
1810 d->qscale= s->qscale;
1811 d->dquant= s->dquant;
9f175aa0
MN
1812
1813 d->esc3_level_length= s->esc3_level_length;
3ada94ba
BF
1814}
1815
1816static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1817 int i;
1818
1819 memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
be73d76b 1820 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster than a loop?
3ada94ba
BF
1821
1822 /* mpeg1 */
1823 d->mb_skip_run= s->mb_skip_run;
1824 for(i=0; i<3; i++)
1825 d->last_dc[i]= s->last_dc[i];
1826
1827 /* statistics */
1828 d->mv_bits= s->mv_bits;
1829 d->i_tex_bits= s->i_tex_bits;
1830 d->p_tex_bits= s->p_tex_bits;
1831 d->i_count= s->i_count;
1832 d->f_count= s->f_count;
1833 d->b_count= s->b_count;
1834 d->skip_count= s->skip_count;
1835 d->misc_bits= s->misc_bits;
1836
1837 d->mb_intra= s->mb_intra;
1838 d->mb_skipped= s->mb_skipped;
1839 d->mv_type= s->mv_type;
1840 d->mv_dir= s->mv_dir;
1841 d->pb= s->pb;
1842 if(s->data_partitioning){
1843 d->pb2= s->pb2;
1844 d->tex_pb= s->tex_pb;
1845 }
1846 d->block= s->block;
1847 for(i=0; i<8; i++)
1848 d->block_last_index[i]= s->block_last_index[i];
1849 d->interlaced_dct= s->interlaced_dct;
1850 d->qscale= s->qscale;
9f175aa0
MN
1851
1852 d->esc3_level_length= s->esc3_level_length;
3ada94ba
BF
1853}
1854
1855static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type,
1856 PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
1857 int *dmin, int *next_block, int motion_x, int motion_y)
1858{
1859 int score;
1860 uint8_t *dest_backup[3];
1861
1862 copy_context_before_encode(s, backup, type);
1863
1864 s->block= s->blocks[*next_block];
1865 s->pb= pb[*next_block];
1866 if(s->data_partitioning){
1867 s->pb2 = pb2 [*next_block];
1868 s->tex_pb= tex_pb[*next_block];
1869 }
1870
1871 if(*next_block){
1872 memcpy(dest_backup, s->dest, sizeof(s->dest));
1873 s->dest[0] = s->rd_scratchpad;
1874 s->dest[1] = s->rd_scratchpad + 16*s->linesize;
1875 s->dest[2] = s->rd_scratchpad + 16*s->linesize + 8;
1876 assert(s->linesize >= 32); //FIXME
1877 }
1878
1879 encode_mb(s, motion_x, motion_y);
1880
1881 score= put_bits_count(&s->pb);
1882 if(s->data_partitioning){
1883 score+= put_bits_count(&s->pb2);
1884 score+= put_bits_count(&s->tex_pb);
1885 }
1886
1887 if(s->avctx->mb_decision == FF_MB_DECISION_RD){
1888 MPV_decode_mb(s, s->block);
1889
1890 score *= s->lambda2;
1891 score += sse_mb(s) << FF_LAMBDA_SHIFT;
1892 }
1893
1894 if(*next_block){
1895 memcpy(s->dest, dest_backup, sizeof(s->dest));
1896 }
1897
1898 if(score<*dmin){
1899 *dmin= score;
1900 *next_block^=1;
1901
1902 copy_context_after_encode(best, s, type);
1903 }
1904}
1905
1906static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){
1907 uint32_t *sq = ff_squareTbl + 256;
1908 int acc=0;
1909 int x,y;
1910
1911 if(w==16 && h==16)
1912 return s->dsp.sse[0](NULL, src1, src2, stride, 16);
1913 else if(w==8 && h==8)
1914 return s->dsp.sse[1](NULL, src1, src2, stride, 8);
1915
1916 for(y=0; y<h; y++){
1917 for(x=0; x<w; x++){
1918 acc+= sq[src1[x + y*stride] - src2[x + y*stride]];
1919 }
1920 }
1921
1922 assert(acc>=0);
1923
1924 return acc;
1925}
1926
1927static int sse_mb(MpegEncContext *s){
1928 int w= 16;
1929 int h= 16;
1930
1931 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
1932 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
1933
1934 if(w==16 && h==16)
1935 if(s->avctx->mb_cmp == FF_CMP_NSSE){
1936 return s->dsp.nsse[0](s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], s->linesize, 16)
1937 +s->dsp.nsse[1](s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], s->uvlinesize, 8)
1938 +s->dsp.nsse[1](s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], s->uvlinesize, 8);
1939 }else{
1940 return s->dsp.sse[0](NULL, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], s->linesize, 16)
1941 +s->dsp.sse[1](NULL, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], s->uvlinesize, 8)
1942 +s->dsp.sse[1](NULL, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], s->uvlinesize, 8);
1943 }
1944 else
1945 return sse(s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], w, h, s->linesize)
1946 +sse(s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], w>>1, h>>1, s->uvlinesize)
1947 +sse(s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], w>>1, h>>1, s->uvlinesize);
1948}
1949
1950static int pre_estimate_motion_thread(AVCodecContext *c, void *arg){
3a84713a 1951 MpegEncContext *s= *(void**)arg;
3ada94ba
BF
1952
1953
1954 s->me.pre_pass=1;
1955 s->me.dia_size= s->avctx->pre_dia_size;
1956 s->first_slice_line=1;
1957 for(s->mb_y= s->end_mb_y-1; s->mb_y >= s->start_mb_y; s->mb_y--) {
1958 for(s->mb_x=s->mb_width-1; s->mb_x >=0 ;s->mb_x--) {
1959 ff_pre_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1960 }
1961 s->first_slice_line=0;
1962 }
1963
1964 s->me.pre_pass=0;
1965
1966 return 0;
1967}
1968
1969static int estimate_motion_thread(AVCodecContext *c, void *arg){
3a84713a 1970 MpegEncContext *s= *(void**)arg;
3ada94ba
BF
1971
1972 ff_check_alignment();
1973
1974 s->me.dia_size= s->avctx->dia_size;
1975 s->first_slice_line=1;
1976 for(s->mb_y= s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
1977 s->mb_x=0; //for block init below
1978 ff_init_block_index(s);
1979 for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {
1980 s->block_index[0]+=2;
1981 s->block_index[1]+=2;
1982 s->block_index[2]+=2;
1983 s->block_index[3]+=2;
1984
1985 /* compute motion vector & mb_type and store in context */
975a1447 1986 if(s->pict_type==AV_PICTURE_TYPE_B)
3ada94ba
BF
1987 ff_estimate_b_frame_motion(s, s->mb_x, s->mb_y);
1988 else
1989 ff_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1990 }
1991 s->first_slice_line=0;
1992 }
1993 return 0;
1994}
1995
1996static int mb_var_thread(AVCodecContext *c, void *arg){
3a84713a 1997 MpegEncContext *s= *(void**)arg;
3ada94ba
BF
1998 int mb_x, mb_y;
1999
2000 ff_check_alignment();
2001
2002 for(mb_y=s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2003 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2004 int xx = mb_x * 16;
2005 int yy = mb_y * 16;
2006 uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
2007 int varc;
2008 int sum = s->dsp.pix_sum(pix, s->linesize);
2009
2010 varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
2011
2012 s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
2013 s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
2014 s->me.mb_var_sum_temp += varc;
2015 }
2016 }
2017 return 0;
2018}
2019
2020static void write_slice_end(MpegEncContext *s){
49fb20cb 2021 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4){
3ada94ba
BF
2022 if(s->partitioned_frame){
2023 ff_mpeg4_merge_partitions(s);
2024 }
2025
2026 ff_mpeg4_stuffing(&s->pb);
49fb20cb 2027 }else if(CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG){
3ada94ba
BF
2028 ff_mjpeg_encode_stuffing(&s->pb);
2029 }
2030
2031 align_put_bits(&s->pb);
2032 flush_put_bits(&s->pb);
2033
2034 if((s->flags&CODEC_FLAG_PASS1) && !s->partitioned_frame)
2035 s->misc_bits+= get_bits_diff(s);
2036}
2037
2038static int encode_thread(AVCodecContext *c, void *arg){
3a84713a 2039 MpegEncContext *s= *(void**)arg;
3ada94ba 2040 int mb_x, mb_y, pdif = 0;
ec7e2582 2041 int chr_h= 16>>s->chroma_y_shift;
3ada94ba
BF
2042 int i, j;
2043 MpegEncContext best_s, backup_s;
2044 uint8_t bit_buf[2][MAX_MB_BYTES];
2045 uint8_t bit_buf2[2][MAX_MB_BYTES];
2046 uint8_t bit_buf_tex[2][MAX_MB_BYTES];
2047 PutBitContext pb[2], pb2[2], tex_pb[2];
2048//printf("%d->%d\n", s->resync_mb_y, s->end_mb_y);
2049
2050 ff_check_alignment();
2051
2052 for(i=0; i<2; i++){
2053 init_put_bits(&pb [i], bit_buf [i], MAX_MB_BYTES);
2054 init_put_bits(&pb2 [i], bit_buf2 [i], MAX_MB_BYTES);
2055 init_put_bits(&tex_pb[i], bit_buf_tex[i], MAX_MB_BYTES);
2056 }
2057
2058 s->last_bits= put_bits_count(&s->pb);
2059 s->mv_bits=0;
2060 s->misc_bits=0;
2061 s->i_tex_bits=0;
2062 s->p_tex_bits=0;
2063 s->i_count=0;
2064 s->f_count=0;
2065 s->b_count=0;
2066 s->skip_count=0;
2067
2068 for(i=0; i<3; i++){
2069 /* init last dc values */
2070 /* note: quant matrix value (8) is implied here */
2071 s->last_dc[i] = 128 << s->intra_dc_precision;
2072
2073 s->current_picture.error[i] = 0;
2074 }
2075 s->mb_skip_run = 0;
2076 memset(s->last_mv, 0, sizeof(s->last_mv));
2077
2078 s->last_mv_dir = 0;
2079
2080 switch(s->codec_id){
2081 case CODEC_ID_H263:
2082 case CODEC_ID_H263P:
2083 case CODEC_ID_FLV1:
0bd48530 2084 if (CONFIG_H263_ENCODER)
674eeb5f 2085 s->gob_index = ff_h263_get_gob_height(s);
3ada94ba
BF
2086 break;
2087 case CODEC_ID_MPEG4:
49fb20cb 2088 if(CONFIG_MPEG4_ENCODER && s->partitioned_frame)
3ada94ba
BF
2089 ff_mpeg4_init_partitions(s);
2090 break;
2091 }
2092
2093 s->resync_mb_x=0;
2094 s->resync_mb_y=0;
2095 s->first_slice_line = 1;
2096 s->ptr_lastgob = s->pb.buf;
2097 for(mb_y= s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2098// printf("row %d at %X\n", s->mb_y, (int)s);
2099 s->mb_x=0;
2100 s->mb_y= mb_y;
2101
2102 ff_set_qscale(s, s->qscale);
2103 ff_init_block_index(s);
2104
2105 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2106 int xy= mb_y*s->mb_stride + mb_x; // removed const, H261 needs to adjust this
2107 int mb_type= s->mb_type[xy];
2108// int d;
2109 int dmin= INT_MAX;
2110 int dir;
2111
2112 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < MAX_MB_BYTES){
2113 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2114 return -1;
2115 }
2116 if(s->data_partitioning){
2117 if( s->pb2 .buf_end - s->pb2 .buf - (put_bits_count(&s-> pb2)>>3) < MAX_MB_BYTES
2118 || s->tex_pb.buf_end - s->tex_pb.buf - (put_bits_count(&s->tex_pb )>>3) < MAX_MB_BYTES){
2119 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2120 return -1;
2121 }
2122 }
2123
2124 s->mb_x = mb_x;
2125 s->mb_y = mb_y; // moved into loop, can get changed by H.261
2126 ff_update_block_index(s);
2127
49fb20cb 2128 if(CONFIG_H261_ENCODER && s->codec_id == CODEC_ID_H261){
3ada94ba
BF
2129 ff_h261_reorder_mb_index(s);
2130 xy= s->mb_y*s->mb_stride + s->mb_x;
2131 mb_type= s->mb_type[xy];
2132 }
2133
2134 /* write gob / video packet header */
2135 if(s->rtp_mode){
2136 int current_packet_size, is_gob_start;
2137
2138 current_packet_size= ((put_bits_count(&s->pb)+7)>>3) - (s->ptr_lastgob - s->pb.buf);
2139
2140 is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0;
2141
2142 if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1;
2143
2144 switch(s->codec_id){
2145 case CODEC_ID_H263:
2146 case CODEC_ID_H263P:
2147 if(!s->h263_slice_structured)
2148 if(s->mb_x || s->mb_y%s->gob_index) is_gob_start=0;
2149 break;
2150 case CODEC_ID_MPEG2VIDEO:
2151 if(s->mb_x==0 && s->mb_y!=0) is_gob_start=1;
2152 case CODEC_ID_MPEG1VIDEO:
2153 if(s->mb_skip_run) is_gob_start=0;
2154 break;
2155 }
2156
2157 if(is_gob_start){
2158 if(s->start_mb_y != mb_y || mb_x!=0){
2159 write_slice_end(s);
2160
49fb20cb 2161 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){
3ada94ba
BF
2162 ff_mpeg4_init_partitions(s);
2163 }
2164 }
2165
2166 assert((put_bits_count(&s->pb)&7) == 0);
fb53b4a0 2167 current_packet_size= put_bits_ptr(&s->pb) - s->ptr_lastgob;
3ada94ba
BF
2168
2169 if(s->avctx->error_rate && s->resync_mb_x + s->resync_mb_y > 0){
2170 int r= put_bits_count(&s->pb)/8 + s->picture_number + 16 + s->mb_x + s->mb_y;
2171 int d= 100 / s->avctx->error_rate;
2172 if(r % d == 0){
2173 current_packet_size=0;
3ada94ba 2174 s->pb.buf_ptr= s->ptr_lastgob;
fb53b4a0 2175 assert(put_bits_ptr(&s->pb) == s->ptr_lastgob);
3ada94ba
BF
2176 }
2177 }
2178
2179 if (s->avctx->rtp_callback){
2180 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width + mb_x - s->resync_mb_x;
2181 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, current_packet_size, number_mb);
2182 }
2183
2184 switch(s->codec_id){
2185 case CODEC_ID_MPEG4:
49fb20cb 2186 if (CONFIG_MPEG4_ENCODER) {
674eeb5f
AJ
2187 ff_mpeg4_encode_video_packet_header(s);
2188 ff_mpeg4_clean_buffers(s);
eb75a698 2189 }
3ada94ba
BF
2190 break;
2191 case CODEC_ID_MPEG1VIDEO:
2192 case CODEC_ID_MPEG2VIDEO:
49fb20cb 2193 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) {
56be950a
AJ
2194 ff_mpeg1_encode_slice_header(s);
2195 ff_mpeg1_clean_buffers(s);
a6bc5731 2196 }
3ada94ba
BF
2197 break;
2198 case CODEC_ID_H263:
2199 case CODEC_ID_H263P:
965424da 2200 if (CONFIG_H263_ENCODER)
674eeb5f 2201 h263_encode_gob_header(s, mb_y);
3ada94ba
BF
2202 break;
2203 }
2204
2205 if(s->flags&CODEC_FLAG_PASS1){
2206 int bits= put_bits_count(&s->pb);
2207 s->misc_bits+= bits - s->last_bits;
2208 s->last_bits= bits;
2209 }
2210
2211 s->ptr_lastgob += current_packet_size;
2212 s->first_slice_line=1;
2213 s->resync_mb_x=mb_x;
2214 s->resync_mb_y=mb_y;
2215 }
2216 }
2217
2218 if( (s->resync_mb_x == s->mb_x)
2219 && s->resync_mb_y+1 == s->mb_y){
2220 s->first_slice_line=0;
2221 }
2222
2223 s->mb_skipped=0;
2224 s->dquant=0; //only for QP_RD
2225
2226 if(mb_type & (mb_type-1) || (s->flags & CODEC_FLAG_QP_RD)){ // more than 1 MB type possible or CODEC_FLAG_QP_RD
2227 int next_block=0;
2228 int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
2229
2230 copy_context_before_encode(&backup_s, s, -1);
2231 backup_s.pb= s->pb;
2232 best_s.data_partitioning= s->data_partitioning;
2233 best_s.partitioned_frame= s->partitioned_frame;
2234 if(s->data_partitioning){
2235 backup_s.pb2= s->pb2;
2236 backup_s.tex_pb= s->tex_pb;
2237 }
2238
2239 if(mb_type&CANDIDATE_MB_TYPE_INTER){
2240 s->mv_dir = MV_DIR_FORWARD;
2241 s->mv_type = MV_TYPE_16X16;
2242 s->mb_intra= 0;
2243 s->mv[0][0][0] = s->p_mv_table[xy][0];
2244 s->mv[0][0][1] = s->p_mv_table[xy][1];
2245 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER, pb, pb2, tex_pb,
2246 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2247 }
2248 if(mb_type&CANDIDATE_MB_TYPE_INTER_I){
2249 s->mv_dir = MV_DIR_FORWARD;
2250 s->mv_type = MV_TYPE_FIELD;
2251 s->mb_intra= 0;
2252 for(i=0; i<2; i++){
2253 j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2254 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2255 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2256 }
2257 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER_I, pb, pb2, tex_pb,
2258 &dmin, &next_block, 0, 0);
2259 }
2260 if(mb_type&CANDIDATE_MB_TYPE_SKIPPED){
2261 s->mv_dir = MV_DIR_FORWARD;
2262 s->mv_type = MV_TYPE_16X16;
2263 s->mb_intra= 0;
2264 s->mv[0][0][0] = 0;
2265 s->mv[0][0][1] = 0;
2266 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_SKIPPED, pb, pb2, tex_pb,
2267 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2268 }
2269 if(mb_type&CANDIDATE_MB_TYPE_INTER4V){
2270 s->mv_dir = MV_DIR_FORWARD;
2271 s->mv_type = MV_TYPE_8X8;
2272 s->mb_intra= 0;
2273 for(i=0; i<4; i++){
2274 s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2275 s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2276 }
2277 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER4V, pb, pb2, tex_pb,
2278 &dmin, &next_block, 0, 0);
2279 }
2280 if(mb_type&CANDIDATE_MB_TYPE_FORWARD){
2281 s->mv_dir = MV_DIR_FORWARD;
2282 s->mv_type = MV_TYPE_16X16;
2283 s->mb_intra= 0;
2284 s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2285 s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2286 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD, pb, pb2, tex_pb,
2287 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2288 }
2289 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD){
2290 s->mv_dir = MV_DIR_BACKWARD;
2291 s->mv_type = MV_TYPE_16X16;
2292 s->mb_intra= 0;
2293 s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2294 s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2295 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD, pb, pb2, tex_pb,
2296 &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
2297 }
2298 if(mb_type&CANDIDATE_MB_TYPE_BIDIR){
2299 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2300 s->mv_type = MV_TYPE_16X16;
2301 s->mb_intra= 0;
2302 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2303 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2304 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2305 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2306 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb,
2307 &dmin, &next_block, 0, 0);
2308 }
2309 if(mb_type&CANDIDATE_MB_TYPE_FORWARD_I){
2310 s->mv_dir = MV_DIR_FORWARD;
2311 s->mv_type = MV_TYPE_FIELD;
2312 s->mb_intra= 0;
2313 for(i=0; i<2; i++){
2314 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2315 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2316 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2317 }
2318 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD_I, pb, pb2, tex_pb,
2319 &dmin, &next_block, 0, 0);
2320 }
2321 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD_I){
2322 s->mv_dir = MV_DIR_BACKWARD;
2323 s->mv_type = MV_TYPE_FIELD;
2324 s->mb_intra= 0;
2325 for(i=0; i<2; i++){
2326 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2327 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2328 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2329 }
2330 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD_I, pb, pb2, tex_pb,
2331 &dmin, &next_block, 0, 0);
2332 }
2333 if(mb_type&CANDIDATE_MB_TYPE_BIDIR_I){
2334 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2335 s->mv_type = MV_TYPE_FIELD;
2336 s->mb_intra= 0;
2337 for(dir=0; dir<2; dir++){
2338 for(i=0; i<2; i++){
2339 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2340 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2341 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2342 }
2343 }
2344 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR_I, pb, pb2, tex_pb,
2345 &dmin, &next_block, 0, 0);
2346 }
2347 if(mb_type&CANDIDATE_MB_TYPE_INTRA){
2348 s->mv_dir = 0;
2349 s->mv_type = MV_TYPE_16X16;
2350 s->mb_intra= 1;
2351 s->mv[0][0][0] = 0;
2352 s->mv[0][0][1] = 0;
2353 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTRA, pb, pb2, tex_pb,
2354 &dmin, &next_block, 0, 0);
2355 if(s->h263_pred || s->h263_aic){
2356 if(best_s.mb_intra)
2357 s->mbintra_table[mb_x + mb_y*s->mb_stride]=1;
2358 else
2359 ff_clean_intra_table_entries(s); //old mode?
2360 }
2361 }
2362
2363 if((s->flags & CODEC_FLAG_QP_RD) && dmin < INT_MAX){
2364 if(best_s.mv_type==MV_TYPE_16X16){ //FIXME move 4mv after QPRD
2365 const int last_qp= backup_s.qscale;
2366 int qpi, qp, dc[6];
2367 DCTELEM ac[6][16];
2368 const int mvdir= (best_s.mv_dir&MV_DIR_BACKWARD) ? 1 : 0;
2369 static const int dquant_tab[4]={-1,1,-2,2};
2370
2371 assert(backup_s.dquant == 0);
2372
2373 //FIXME intra
2374 s->mv_dir= best_s.mv_dir;
2375 s->mv_type = MV_TYPE_16X16;
2376 s->mb_intra= best_s.mb_intra;
2377 s->mv[0][0][0] = best_s.mv[0][0][0];
2378 s->mv[0][0][1] = best_s.mv[0][0][1];
2379 s->mv[1][0][0] = best_s.mv[1][0][0];
2380 s->mv[1][0][1] = best_s.mv[1][0][1];
2381
975a1447 2382 qpi = s->pict_type == AV_PICTURE_TYPE_B ? 2 : 0;
3ada94ba
BF
2383 for(; qpi<4; qpi++){
2384 int dquant= dquant_tab[qpi];
2385 qp= last_qp + dquant;
2386 if(qp < s->avctx->qmin || qp > s->avctx->qmax)
2387 continue;
2388 backup_s.dquant= dquant;
2389 if(s->mb_intra && s->dc_val[0]){
2390 for(i=0; i<6; i++){
2391 dc[i]= s->dc_val[0][ s->block_index[i] ];
2392 memcpy(ac[i], s->ac_val[0][s->block_index[i]], sizeof(DCTELEM)*16);
2393 }
2394 }
2395
2396 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2397 &dmin, &next_block, s->mv[mvdir][0][0], s->mv[mvdir][0][1]);
2398 if(best_s.qscale != qp){
2399 if(s->mb_intra && s->dc_val[0]){
2400 for(i=0; i<6; i++){
2401 s->dc_val[0][ s->block_index[i] ]= dc[i];
2402 memcpy(s->ac_val[0][s->block_index[i]], ac[i], sizeof(DCTELEM)*16);
2403 }
2404 }
2405 }
2406 }
2407 }
2408 }
49fb20cb 2409 if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT){
3ada94ba
BF
2410 int mx= s->b_direct_mv_table[xy][0];
2411 int my= s->b_direct_mv_table[xy][1];
2412
2413 backup_s.dquant = 0;
2414 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2415 s->mb_intra= 0;
2416 ff_mpeg4_set_direct_mv(s, mx, my);
2417 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2418 &dmin, &next_block, mx, my);
2419 }
49fb20cb 2420 if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT0){
3ada94ba
BF
2421 backup_s.dquant = 0;
2422 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2423 s->mb_intra= 0;
2424 ff_mpeg4_set_direct_mv(s, 0, 0);
2425 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2426 &dmin, &next_block, 0, 0);
2427 }
2428 if(!best_s.mb_intra && s->flags2&CODEC_FLAG2_SKIP_RD){
2429 int coded=0;
2430 for(i=0; i<6; i++)
2431 coded |= s->block_last_index[i];
2432 if(coded){
2433 int mx,my;
2434 memcpy(s->mv, best_s.mv, sizeof(s->mv));
49fb20cb 2435 if(CONFIG_MPEG4_ENCODER && best_s.mv_dir & MV_DIRECT){
3ada94ba
BF
2436 mx=my=0; //FIXME find the one we actually used
2437 ff_mpeg4_set_direct_mv(s, mx, my);
2438 }else if(best_s.mv_dir&MV_DIR_BACKWARD){
2439 mx= s->mv[1][0][0];
2440 my= s->mv[1][0][1];
2441 }else{
2442 mx= s->mv[0][0][0];
2443 my= s->mv[0][0][1];
2444 }
2445
2446 s->mv_dir= best_s.mv_dir;
2447 s->mv_type = best_s.mv_type;
2448 s->mb_intra= 0;
2449/* s->mv[0][0][0] = best_s.mv[0][0][0];
2450 s->mv[0][0][1] = best_s.mv[0][0][1];
2451 s->mv[1][0][0] = best_s.mv[1][0][0];
2452 s->mv[1][0][1] = best_s.mv[1][0][1];*/
2453 backup_s.dquant= 0;
2454 s->skipdct=1;
2455 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2456 &dmin, &next_block, mx, my);
2457 s->skipdct=0;
2458 }
2459 }
2460
2461 s->current_picture.qscale_table[xy]= best_s.qscale;
2462
2463 copy_context_after_encode(s, &best_s, -1);
2464
2465 pb_bits_count= put_bits_count(&s->pb);
2466 flush_put_bits(&s->pb);
2467 ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
2468 s->pb= backup_s.pb;
2469
2470 if(s->data_partitioning){
2471 pb2_bits_count= put_bits_count(&s->pb2);
2472 flush_put_bits(&s->pb2);
2473 ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
2474 s->pb2= backup_s.pb2;
2475
2476 tex_pb_bits_count= put_bits_count(&s->tex_pb);
2477 flush_put_bits(&s->tex_pb);
2478 ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
2479 s->tex_pb= backup_s.tex_pb;
2480 }
2481 s->last_bits= put_bits_count(&s->pb);
2482
f34121f3 2483 if (CONFIG_H263_ENCODER &&
975a1447 2484 s->out_format == FMT_H263 && s->pict_type!=AV_PICTURE_TYPE_B)
3ada94ba
BF
2485 ff_h263_update_motion_val(s);
2486
2487 if(next_block==0){ //FIXME 16 vs linesize16
2488 s->dsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad , s->linesize ,16);
2489 s->dsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize , s->uvlinesize, 8);
2490 s->dsp.put_pixels_tab[1][0](s->dest[2], s->rd_scratchpad + 16*s->linesize + 8, s->uvlinesize, 8);
2491 }
2492
2493 if(s->avctx->mb_decision == FF_MB_DECISION_BITS)
2494 MPV_decode_mb(s, s->block);
2495 } else {
2496 int motion_x = 0, motion_y = 0;
2497 s->mv_type=MV_TYPE_16X16;
2498 // only one MB-Type possible
2499
2500 switch(mb_type){
2501 case CANDIDATE_MB_TYPE_INTRA:
2502 s->mv_dir = 0;
2503 s->mb_intra= 1;
2504 motion_x= s->mv[0][0][0] = 0;
2505 motion_y= s->mv[0][0][1] = 0;
2506 break;
2507 case CANDIDATE_MB_TYPE_INTER:
2508 s->mv_dir = MV_DIR_FORWARD;
2509 s->mb_intra= 0;
2510 motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
2511 motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
2512 break;
2513 case CANDIDATE_MB_TYPE_INTER_I:
2514 s->mv_dir = MV_DIR_FORWARD;
2515 s->mv_type = MV_TYPE_FIELD;
2516 s->mb_intra= 0;
2517 for(i=0; i<2; i++){
2518 j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2519 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2520 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2521 }
2522 break;
2523 case CANDIDATE_MB_TYPE_INTER4V:
2524 s->mv_dir = MV_DIR_FORWARD;
2525 s->mv_type = MV_TYPE_8X8;
2526 s->mb_intra= 0;
2527 for(i=0; i<4; i++){
2528 s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2529 s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2530 }
2531 break;
2532 case CANDIDATE_MB_TYPE_DIRECT:
49fb20cb 2533 if (CONFIG_MPEG4_ENCODER) {
674eeb5f
AJ
2534 s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2535 s->mb_intra= 0;
2536 motion_x=s->b_direct_mv_table[xy][0];
2537 motion_y=s->b_direct_mv_table[xy][1];
2538 ff_mpeg4_set_direct_mv(s, motion_x, motion_y);
eb75a698 2539 }
3ada94ba
BF
2540 break;
2541 case CANDIDATE_MB_TYPE_DIRECT0:
49fb20cb 2542 if (CONFIG_MPEG4_ENCODER) {
674eeb5f
AJ
2543 s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2544 s->mb_intra= 0;
2545 ff_mpeg4_set_direct_mv(s, 0, 0);
eb75a698 2546 }
3ada94ba
BF
2547 break;
2548 case CANDIDATE_MB_TYPE_BIDIR:
2549 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2550 s->mb_intra= 0;
2551 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2552 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2553 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2554 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2555 break;
2556 case CANDIDATE_MB_TYPE_BACKWARD:
2557 s->mv_dir = MV_DIR_BACKWARD;
2558 s->mb_intra= 0;
2559 motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2560 motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2561 break;
2562 case CANDIDATE_MB_TYPE_FORWARD:
2563 s->mv_dir = MV_DIR_FORWARD;
2564 s->mb_intra= 0;
2565 motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2566 motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2567// printf(" %d %d ", motion_x, motion_y);
2568 break;
2569 case CANDIDATE_MB_TYPE_FORWARD_I:
2570 s->mv_dir = MV_DIR_FORWARD;
2571 s->mv_type = MV_TYPE_FIELD;
2572 s->mb_intra= 0;
2573 for(i=0; i<2; i++){
2574 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2575 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2576 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2577 }
2578 break;
2579 case CANDIDATE_MB_TYPE_BACKWARD_I:
2580 s->mv_dir = MV_DIR_BACKWARD;
2581 s->mv_type = MV_TYPE_FIELD;
2582 s->mb_intra= 0;
2583 for(i=0; i<2; i++){
2584 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2585 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2586 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2587 }
2588 break;
2589 case CANDIDATE_MB_TYPE_BIDIR_I:
2590 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2591 s->mv_type = MV_TYPE_FIELD;
2592 s->mb_intra= 0;
2593 for(dir=0; dir<2; dir++){
2594 for(i=0; i<2; i++){
2595 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2596 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2597 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2598 }
2599 }
2600 break;
2601 default:
2602 av_log(s->avctx, AV_LOG_ERROR, "illegal MB type\n");
2603 }
2604
2605 encode_mb(s, motion_x, motion_y);
2606
2607 // RAL: Update last macroblock type
2608 s->last_mv_dir = s->mv_dir;
2609
f34121f3 2610 if (CONFIG_H263_ENCODER &&
975a1447 2611 s->out_format == FMT_H263 && s->pict_type!=AV_PICTURE_TYPE_B)
3ada94ba
BF
2612 ff_h263_update_motion_val(s);
2613
2614 MPV_decode_mb(s, s->block);
2615 }
2616
2617 /* clean the MV table in IPS frames for direct mode in B frames */
2618 if(s->mb_intra /* && I,P,S_TYPE */){
2619 s->p_mv_table[xy][0]=0;
2620 s->p_mv_table[xy][1]=0;
2621 }
2622
2623 if(s->flags&CODEC_FLAG_PSNR){
2624 int w= 16;
2625 int h= 16;
2626
2627 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
2628 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
2629
2630 s->current_picture.error[0] += sse(
2631 s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16,
2632 s->dest[0], w, h, s->linesize);
2633 s->current_picture.error[1] += sse(
ec7e2582
BC
2634 s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*chr_h,
2635 s->dest[1], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
3ada94ba 2636 s->current_picture.error[2] += sse(
ec7e2582
BC
2637 s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*chr_h,
2638 s->dest[2], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
3ada94ba
BF
2639 }
2640 if(s->loop_filter){
f34121f3 2641 if(CONFIG_H263_ENCODER && s->out_format == FMT_H263)
3ada94ba
BF
2642 ff_h263_loop_filter(s);
2643 }
2644//printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, put_bits_count(&s->pb));
2645 }
2646 }
2647
2648 //not beautiful here but we must write it before flushing so it has to be here
975a1447 2649 if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == AV_PICTURE_TYPE_I)
3ada94ba
BF
2650 msmpeg4_encode_ext_header(s);
2651
2652 write_slice_end(s);
2653
2654 /* Send the last GOB if RTP */
2655 if (s->avctx->rtp_callback) {
2656 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width - s->resync_mb_x;
fb53b4a0 2657 pdif = put_bits_ptr(&s->pb) - s->ptr_lastgob;
3ada94ba
BF
2658 /* Call the RTP callback to send the last GOB */
2659 emms_c();
2660 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, pdif, number_mb);
2661 }
2662
2663 return 0;
2664}
2665
2666#define MERGE(field) dst->field += src->field; src->field=0
2667static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src){
2668 MERGE(me.scene_change_score);
2669 MERGE(me.mc_mb_var_sum_temp);
2670 MERGE(me.mb_var_sum_temp);
2671}
2672
2673static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src){
2674 int i;
2675
2676 MERGE(dct_count[0]); //note, the other dct vars are not part of the context
2677 MERGE(dct_count[1]);
2678 MERGE(mv_bits);
2679 MERGE(i_tex_bits);
2680 MERGE(p_tex_bits);
2681 MERGE(i_count);
2682 MERGE(f_count);
2683 MERGE(b_count);
2684 MERGE(skip_count);
2685 MERGE(misc_bits);
2686 MERGE(error_count);
2687 MERGE(padding_bug_score);
2688 MERGE(current_picture.error[0]);
2689 MERGE(current_picture.error[1]);
2690 MERGE(current_picture.error[2]);
2691
2692 if(dst->avctx->noise_reduction){
2693 for(i=0; i<64; i++){
2694 MERGE(dct_error_sum[0][i]);
2695 MERGE(dct_error_sum[1][i]);
2696 }
2697 }
2698
2699 assert(put_bits_count(&src->pb) % 8 ==0);
2700 assert(put_bits_count(&dst->pb) % 8 ==0);
2701 ff_copy_bits(&dst->pb, src->pb.buf, put_bits_count(&src->pb));
2702 flush_put_bits(&dst->pb);
2703}
2704
2705static int estimate_qp(MpegEncContext *s, int dry_run){
2706 if (s->next_lambda){
2707 s->current_picture_ptr->quality=
2708 s->current_picture.quality = s->next_lambda;
2709 if(!dry_run) s->next_lambda= 0;
2710 } else if (!s->fixed_qscale) {
2711 s->current_picture_ptr->quality=
2712 s->current_picture.quality = ff_rate_estimate_qscale(s, dry_run);
2713 if (s->current_picture.quality < 0)
2714 return -1;
2715 }
2716
2717 if(s->adaptive_quant){
2718 switch(s->codec_id){
2719 case CODEC_ID_MPEG4:
49fb20cb 2720 if (CONFIG_MPEG4_ENCODER)
674eeb5f 2721 ff_clean_mpeg4_qscales(s);
3ada94ba
BF
2722 break;
2723 case CODEC_ID_H263:
2724 case CODEC_ID_H263P:
2725 case CODEC_ID_FLV1:
0bd48530 2726 if (CONFIG_H263_ENCODER)
674eeb5f 2727 ff_clean_h263_qscales(s);
3ada94ba 2728 break;
ccc4b918
MN
2729 default:
2730 ff_init_qscale_tab(s);
3ada94ba
BF
2731 }
2732
2733 s->lambda= s->lambda_table[0];
2734 //FIXME broken
2735 }else
2736 s->lambda= s->current_picture.quality;
2737//printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality);
2738 update_qscale(s);
2739 return 0;
2740}
2741
7da31a80
AJ
2742/* must be called before writing the header */
2743static void set_frame_distances(MpegEncContext * s){
2744 assert(s->current_picture_ptr->pts != AV_NOPTS_VALUE);
2745 s->time= s->current_picture_ptr->pts*s->avctx->time_base.num;
2746
975a1447 2747 if(s->pict_type==AV_PICTURE_TYPE_B){
7da31a80
AJ
2748 s->pb_time= s->pp_time - (s->last_non_b_time - s->time);
2749 assert(s->pb_time > 0 && s->pb_time < s->pp_time);
2750 }else{
2751 s->pp_time= s->time - s->last_non_b_time;
2752 s->last_non_b_time= s->time;
2753 assert(s->picture_number==0 || s->pp_time > 0);
2754 }
2755}
2756
3ada94ba
BF
2757static int encode_picture(MpegEncContext *s, int picture_number)
2758{
2759 int i;
2760 int bits;
83a8b300 2761 int context_count = s->avctx->thread_count;
3ada94ba
BF
2762
2763 s->picture_number = picture_number;
2764
2765 /* Reset the average MB variance */
2766 s->me.mb_var_sum_temp =
2767 s->me.mc_mb_var_sum_temp = 0;
2768
2769 /* we need to initialize some time vars before we can encode b-frames */
2770 // RAL: Condition added for MPEG1VIDEO
8c51620f 2771 if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->msmpeg4_version))
7da31a80 2772 set_frame_distances(s);
49fb20cb 2773 if(CONFIG_MPEG4_ENCODER && s->codec_id == CODEC_ID_MPEG4)
7da31a80 2774 ff_set_mpeg4_time(s);
3ada94ba
BF
2775
2776 s->me.scene_change_score=0;
2777
e6dba5df 2778// s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME rate distortion
3ada94ba 2779
975a1447 2780 if(s->pict_type==AV_PICTURE_TYPE_I){
3ada94ba
BF
2781 if(s->msmpeg4_version >= 3) s->no_rounding=1;
2782 else s->no_rounding=0;
975a1447 2783 }else if(s->pict_type!=AV_PICTURE_TYPE_B){
3ada94ba
BF
2784 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
2785 s->no_rounding ^= 1;
2786 }
2787
2788 if(s->flags & CODEC_FLAG_PASS2){
2789 if (estimate_qp(s,1) < 0)
2790 return -1;
2791 ff_get_2pass_fcode(s);
2792 }else if(!(s->flags & CODEC_FLAG_QSCALE)){
975a1447 2793 if(s->pict_type==AV_PICTURE_TYPE_B)
3ada94ba
BF
2794 s->lambda= s->last_lambda_for[s->pict_type];
2795 else
2796 s->lambda= s->last_lambda_for[s->last_non_b_pict_type];
2797 update_qscale(s);
2798 }
2799
2800 s->mb_intra=0; //for the rate distortion & bit compare functions
6a9c8594 2801 for(i=1; i<context_count; i++){
3ada94ba
BF
2802 ff_update_duplicate_context(s->thread_context[i], s);
2803 }
2804
719f3702
MN
2805 if(ff_init_me(s)<0)
2806 return -1;
3ada94ba
BF
2807
2808 /* Estimate motion for every MB */
975a1447 2809 if(s->pict_type != AV_PICTURE_TYPE_I){
3ada94ba
BF
2810 s->lambda = (s->lambda * s->avctx->me_penalty_compensation + 128)>>8;
2811 s->lambda2= (s->lambda2* (int64_t)s->avctx->me_penalty_compensation + 128)>>8;
975a1447
SS
2812 if(s->pict_type != AV_PICTURE_TYPE_B && s->avctx->me_threshold==0){
2813 if((s->avctx->pre_me && s->last_non_b_pict_type==AV_PICTURE_TYPE_I) || s->avctx->pre_me==2){
6a9c8594 2814 s->avctx->execute(s->avctx, pre_estimate_motion_thread, &s->thread_context[0], NULL, context_count, sizeof(void*));
3ada94ba
BF
2815 }
2816 }
2817
6a9c8594 2818 s->avctx->execute(s->avctx, estimate_motion_thread, &s->thread_context[0], NULL, context_count, sizeof(void*));
975a1447 2819 }else /* if(s->pict_type == AV_PICTURE_TYPE_I) */{
3ada94ba
BF
2820 /* I-Frame */
2821 for(i=0; i<s->mb_stride*s->mb_height; i++)
2822 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2823
2824 if(!s->fixed_qscale){
2825 /* finding spatial complexity for I-frame rate control */
6a9c8594 2826 s->avctx->execute(s->avctx, mb_var_thread, &s->thread_context[0], NULL, context_count, sizeof(void*));
3ada94ba
BF
2827 }
2828 }
6a9c8594 2829 for(i=1; i<context_count; i++){
3ada94ba
BF
2830 merge_context_after_me(s, s->thread_context[i]);
2831 }
2832 s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum= s->me.mc_mb_var_sum_temp;
2833 s->current_picture. mb_var_sum= s->current_picture_ptr-> mb_var_sum= s->me. mb_var_sum_temp;
2834 emms_c();
2835
975a1447
SS
2836 if(s->me.scene_change_score > s->avctx->scenechange_threshold && s->pict_type == AV_PICTURE_TYPE_P){
2837 s->pict_type= AV_PICTURE_TYPE_I;
3ada94ba
BF
2838 for(i=0; i<s->mb_stride*s->mb_height; i++)
2839 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2840//printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum);
2841 }
2842
2843 if(!s->umvplus){
975a1447 2844 if(s->pict_type==AV_PICTURE_TYPE_P || s->pict_type==AV_PICTURE_TYPE_S) {
3ada94ba
BF
2845 s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER);
2846
2847 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2848 int a,b;
2849 a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select
2850 b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I);
159ef4b0 2851 s->f_code= FFMAX3(s->f_code, a, b);
3ada94ba
BF
2852 }
2853
2854 ff_fix_long_p_mvs(s);
2855 ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0);
2856 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2857 int j;
2858 for(i=0; i<2; i++){
2859 for(j=0; j<2; j++)
2860 ff_fix_long_mvs(s, s->p_field_select_table[i], j,
2861 s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0);
2862 }
2863 }
2864 }
2865
975a1447 2866 if(s->pict_type==AV_PICTURE_TYPE_B){
3ada94ba
BF
2867 int a, b;
2868
2869 a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD);
2870 b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2871 s->f_code = FFMAX(a, b);
2872
2873 a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD);
2874 b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2875 s->b_code = FFMAX(a, b);
2876
2877 ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1);
2878 ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1);
2879 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2880 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2881 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2882 int dir, j;
2883 for(dir=0; dir<2; dir++){
2884 for(i=0; i<2; i++){
2885 for(j=0; j<2; j++){
2886 int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I)
2887 : (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I);
2888 ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j,
2889 s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1);
2890 }
2891 }
2892 }
2893 }
2894 }
2895 }
2896
2897 if (estimate_qp(s, 0) < 0)
2898 return -1;
2899
975a1447 2900 if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==AV_PICTURE_TYPE_I && !(s->flags & CODEC_FLAG_QSCALE))
3ada94ba
BF
2901 s->qscale= 3; //reduce clipping problems
2902
2903 if (s->out_format == FMT_MJPEG) {
2904 /* for mjpeg, we do include qscale in the matrix */
3ada94ba
BF
2905 for(i=1;i<64;i++){
2906 int j= s->dsp.idct_permutation[i];
2907
2908 s->intra_matrix[j] = av_clip_uint8((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
2909 }
6506c3d2 2910 s->y_dc_scale_table=
53f66cee
MN
2911 s->c_dc_scale_table= ff_mpeg2_dc_scale_table[s->intra_dc_precision];
2912 s->intra_matrix[0] = ff_mpeg2_dc_scale_table[s->intra_dc_precision][8];
69cea75f 2913 ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
3ada94ba
BF
2914 s->intra_matrix, s->intra_quant_bias, 8, 8, 1);
2915 s->qscale= 8;
2916 }
2917
2918 //FIXME var duplication
2919 s->current_picture_ptr->key_frame=
975a1447 2920 s->current_picture.key_frame= s->pict_type == AV_PICTURE_TYPE_I; //FIXME pic_ptr
3ada94ba
BF
2921 s->current_picture_ptr->pict_type=
2922 s->current_picture.pict_type= s->pict_type;
2923
2924 if(s->current_picture.key_frame)
2925 s->picture_in_gop_number=0;
2926
2927 s->last_bits= put_bits_count(&s->pb);
2928 switch(s->out_format) {
2929 case FMT_MJPEG:
49fb20cb 2930 if (CONFIG_MJPEG_ENCODER)
3ada94ba
BF
2931 ff_mjpeg_encode_picture_header(s);
2932 break;
2933 case FMT_H261:
49fb20cb 2934 if (CONFIG_H261_ENCODER)
3ada94ba
BF
2935 ff_h261_encode_picture_header(s, picture_number);
2936 break;
2937 case FMT_H263:
49fb20cb 2938 if (CONFIG_WMV2_ENCODER && s->codec_id == CODEC_ID_WMV2)
3ada94ba 2939 ff_wmv2_encode_picture_header(s, picture_number);
8c51620f 2940 else if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version)
3ada94ba 2941 msmpeg4_encode_picture_header(s, picture_number);
49fb20cb 2942 else if (CONFIG_MPEG4_ENCODER && s->h263_pred)
3ada94ba 2943 mpeg4_encode_picture_header(s, picture_number);
49fb20cb 2944 else if (CONFIG_RV10_ENCODER && s->codec_id == CODEC_ID_RV10)
3ada94ba 2945 rv10_encode_picture_header(s, picture_number);
49fb20cb 2946 else if (CONFIG_RV20_ENCODER && s->codec_id == CODEC_ID_RV20)
3ada94ba 2947 rv20_encode_picture_header(s, picture_number);
49fb20cb 2948 else if (CONFIG_FLV_ENCODER && s->codec_id == CODEC_ID_FLV1)
3ada94ba 2949 ff_flv_encode_picture_header(s, picture_number);
f34121f3 2950 else if (CONFIG_H263_ENCODER)
3ada94ba
BF
2951 h263_encode_picture_header(s, picture_number);
2952 break;
2953 case FMT_MPEG1:
49fb20cb 2954 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
56be950a 2955 mpeg1_encode_picture_header(s, picture_number);
3ada94ba
BF
2956 break;
2957 case FMT_H264:
2958 break;
2959 default:
2960 assert(0);
2961 }
2962 bits= put_bits_count(&s->pb);
2963 s->header_bits= bits - s->last_bits;
2964
6a9c8594 2965 for(i=1; i<context_count; i++){
3ada94ba
BF
2966 update_duplicate_context_after_me(s->thread_context[i], s);
2967 }
6a9c8594
AS
2968 s->avctx->execute(s->avctx, encode_thread, &s->thread_context[0], NULL, context_count, sizeof(void*));
2969 for(i=1; i<context_count; i++){
3ada94ba
BF
2970 merge_context_after_encode(s, s->thread_context[i]);
2971 }
2972 emms_c();
2973 return 0;
2974}
2975
aa61e39e 2976static void denoise_dct_c(MpegEncContext *s, DCTELEM *block){
3ada94ba
BF
2977 const int intra= s->mb_intra;
2978 int i;
2979
2980 s->dct_count[intra]++;
2981
2982 for(i=0; i<64; i++){
2983 int level= block[i];
2984
2985 if(level){
2986 if(level>0){
2987 s->dct_error_sum[intra][i] += level;
2988 level -= s->dct_offset[intra][i];
2989 if(level<0) level=0;
2990 }else{
2991 s->dct_error_sum[intra][i] -= level;
2992 level += s->dct_offset[intra][i];
2993 if(level>0) level=0;
2994 }
2995 block[i]= level;
2996 }
2997 }
2998}
2999
aa61e39e
MR
3000static int dct_quantize_trellis_c(MpegEncContext *s,
3001 DCTELEM *block, int n,
3002 int qscale, int *overflow){
3ada94ba
BF
3003 const int *qmat;
3004 const uint8_t *scantable= s->intra_scantable.scantable;
3005 const uint8_t *perm_scantable= s->intra_scantable.permutated;
3006 int max=0;
3007 unsigned int threshold1, threshold2;
3008 int bias=0;
3009 int run_tab[65];
3010 int level_tab[65];
3011 int score_tab[65];
3012 int survivor[65];
3013 int survivor_count;
3014 int last_run=0;
3015 int last_level=0;
3016 int last_score= 0;
3017 int last_i;
3018 int coeff[2][64];
3019 int coeff_count[64];
3020 int qmul, qadd, start_i, last_non_zero, i, dc;
3021 const int esc_length= s->ac_esc_length;
3022 uint8_t * length;
3023 uint8_t * last_length;
3024 const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6);
3025
3026 s->dsp.fdct (block);
3027
3028 if(s->dct_error_sum)
3029 s->denoise_dct(s, block);
3030 qmul= qscale*16;
3031 qadd= ((qscale-1)|1)*8;
3032
3033 if (s->mb_intra) {
3034 int q;
3035 if (!s->h263_aic) {
3036 if (n < 4)
3037 q = s->y_dc_scale;
3038 else
3039 q = s->c_dc_scale;
3040 q = q << 3;
3041 } else{
3042 /* For AIC we skip quant/dequant of INTRADC */
3043 q = 1 << 3;
3044 qadd=0;
3045 }
3046
3047 /* note: block[0] is assumed to be positive */
3048 block[0] = (block[0] + (q >> 1)) / q;
3049 start_i = 1;
3050 last_non_zero = 0;
3051 qmat = s->q_intra_matrix[qscale];
3052 if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3053 bias= 1<<(QMAT_SHIFT-1);
3054 length = s->intra_ac_vlc_length;
3055 last_length= s->intra_ac_vlc_last_length;
3056 } else {
3057 start_i = 0;
3058 last_non_zero = -1;
3059 qmat = s->q_inter_matrix[qscale];
3060 length = s->inter_ac_vlc_length;
3061 last_length= s->inter_ac_vlc_last_length;
3062 }
3063 last_i= start_i;
3064
3065 threshold1= (1<<QMAT_SHIFT) - bias - 1;
3066 threshold2= (threshold1<<1);
3067
3068 for(i=63; i>=start_i; i--) {
3069 const int j = scantable[i];
3070 int level = block[j] * qmat[j];
3071
3072 if(((unsigned)(level+threshold1))>threshold2){
3073 last_non_zero = i;
3074 break;
3075 }
3076 }
3077
3078 for(i=start_i; i<=last_non_zero; i++) {
3079 const int j = scantable[i];
3080 int level = block[j] * qmat[j];
3081
3082// if( bias+level >= (1<<(QMAT_SHIFT - 3))
3083// || bias-level >= (1<<(QMAT_SHIFT - 3))){
3084 if(((unsigned)(level+threshold1))>threshold2){
3085 if(level>0){
3086 level= (bias + level)>>QMAT_SHIFT;
3087 coeff[0][i]= level;
3088 coeff[1][i]= level-1;
3089// coeff[2][k]= level-2;
3090 }else{
3091 level= (bias - level)>>QMAT_SHIFT;
3092 coeff[0][i]= -level;
3093 coeff[1][i]= -level+1;
3094// coeff[2][k]= -level+2;
3095 }
3096 coeff_count[i]= FFMIN(level, 2);
3097 assert(coeff_count[i]);
3098 max |=level;
3099 }else{
3100 coeff[0][i]= (level>>31)|1;
3101 coeff_count[i]= 1;
3102 }
3103 }
3104
3105 *overflow= s->max_qcoeff < max; //overflow might have happened
3106
3107 if(last_non_zero < start_i){
3108 memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3109 return last_non_zero;
3110 }
3111
3112 score_tab[start_i]= 0;
3113 survivor[0]= start_i;
3114 survivor_count= 1;
3115
3116 for(i=start_i; i<=last_non_zero; i++){
e6dba5df 3117 int level_index, j, zero_distortion;
b6bffc46 3118 int dct_coeff= FFABS(block[ scantable[i] ]);
3ada94ba 3119 int best_score=256*256*256*120;
b6bffc46
MN
3120
3121 if ( s->dsp.fdct == fdct_ifast
3122#ifndef FAAN_POSTSCALE
3123 || s->dsp.fdct == ff_faandct
3124#endif
3125 )
939e4e3a 3126 dct_coeff= (dct_coeff*ff_inv_aanscales[ scantable[i] ]) >> 12;
e6dba5df 3127 zero_distortion= dct_coeff*dct_coeff;
b6bffc46 3128
3ada94ba 3129 for(level_index=0; level_index < coeff_count[i]; level_index++){
e6dba5df 3130 int distortion;
3ada94ba
BF
3131 int level= coeff[level_index][i];
3132 const int alevel= FFABS(level);
3133 int unquant_coeff;
3134
3135 assert(level);
3136
3137 if(s->out_format == FMT_H263){
3138 unquant_coeff= alevel*qmul + qadd;
3139 }else{ //MPEG1
3140 j= s->dsp.idct_permutation[ scantable[i] ]; //FIXME optimize
3141 if(s->mb_intra){
3142 unquant_coeff = (int)( alevel * qscale * s->intra_matrix[j]) >> 3;
3143 unquant_coeff = (unquant_coeff - 1) | 1;
3144 }else{
3145 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[j])) >> 4;
3146 unquant_coeff = (unquant_coeff - 1) | 1;
3147 }
3148 unquant_coeff<<= 3;
3149 }
3150
e6dba5df 3151 distortion= (unquant_coeff - dct_coeff) * (unquant_coeff - dct_coeff) - zero_distortion;
3ada94ba
BF
3152 level+=64;
3153 if((level&(~127)) == 0){
3154 for(j=survivor_count-1; j>=0; j--){
3155 int run= i - survivor[j];
e6dba5df 3156 int score= distortion + length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3ada94ba
BF
3157 score += score_tab[i-run];
3158
3159 if(score < best_score){
3160 best_score= score;
3161 run_tab[i+1]= run;
3162 level_tab[i+1]= level-64;
3163 }
3164 }
3165
3166 if(s->out_format == FMT_H263){
3167 for(j=survivor_count-1; j>=0; j--){
3168 int run= i - survivor[j];
e6dba5df 3169 int score= distortion + last_length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3ada94ba
BF
3170 score += score_tab[i-run];
3171 if(score < last_score){
3172 last_score= score;
3173 last_run= run;
3174 last_level= level-64;
3175 last_i= i+1;
3176 }
3177 }
3178 }
3179 }else{
e6dba5df 3180 distortion += esc_length*lambda;
3ada94ba
BF
3181 for(j=survivor_count-1; j>=0; j--){
3182 int run= i - survivor[j];
e6dba5df 3183 int score= distortion + score_tab[i-run];
3ada94ba
BF
3184
3185 if(score < best_score){
3186 best_score= score;
3187 run_tab[i+1]= run;
3188 level_tab[i+1]= level-64;
3189 }
3190 }
3191
3192 if(s->out_format == FMT_H263){
3193 for(j=survivor_count-1; j>=0; j--){
3194 int run= i - survivor[j];
e6dba5df 3195 int score= distortion + score_tab[i-run];
3ada94ba
BF
3196 if(score < last_score){
3197 last_score= score;
3198 last_run= run;
3199 last_level= level-64;
3200 last_i= i+1;
3201 }
3202 }
3203 }
3204 }
3205 }
3206
3207 score_tab[i+1]= best_score;
3208
3209 //Note: there is a vlc code in mpeg4 which is 1 bit shorter then another one with a shorter run and the same level
3210 if(last_non_zero <= 27){
3211 for(; survivor_count; survivor_count--){
3212 if(score_tab[ survivor[survivor_count-1] ] <= best_score)
3213 break;
3214 }
3215 }else{
3216 for(; survivor_count; survivor_count--){
3217 if(score_tab[ survivor[survivor_count-1] ] <= best_score + lambda)
3218 break;
3219 }
3220 }
3221
3222 survivor[ survivor_count++ ]= i+1;
3223 }
3224
3225 if(s->out_format != FMT_H263){
3226 last_score= 256*256*256*120;
3227 for(i= survivor[0]; i<=last_non_zero + 1; i++){
3228 int score= score_tab[i];
3229 if(i) score += lambda*2; //FIXME exacter?
3230
3231 if(score < last_score){
3232 last_score= score;
3233 last_i= i;
3234 last_level= level_tab[i];
3235 last_run= run_tab[i];
3236 }
3237 }
3238 }
3239
3240 s->coded_score[n] = last_score;
3241
3242 dc= FFABS(block[0]);
3243 last_non_zero= last_i - 1;
3244 memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3245
3246 if(last_non_zero < start_i)
3247 return last_non_zero;
3248
3249 if(last_non_zero == 0 && start_i == 0){
3250 int best_level= 0;
3251 int best_score= dc * dc;
3252
3253 for(i=0; i<coeff_count[0]; i++){
3254 int level= coeff[i][0];
3255 int alevel= FFABS(level);
3256 int unquant_coeff, score, distortion;
3257
3258 if(s->out_format == FMT_H263){
3259 unquant_coeff= (alevel*qmul + qadd)>>3;
3260 }else{ //MPEG1
3261 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[0])) >> 4;
3262 unquant_coeff = (unquant_coeff - 1) | 1;
3263 }
3264 unquant_coeff = (unquant_coeff + 4) >> 3;
3265 unquant_coeff<<= 3 + 3;
3266
3267 distortion= (unquant_coeff - dc) * (unquant_coeff - dc);
3268 level+=64;
3269 if((level&(~127)) == 0) score= distortion + last_length[UNI_AC_ENC_INDEX(0, level)]*lambda;
3270 else score= distortion + esc_length*lambda;
3271
3272 if(score < best_score){
3273 best_score= score;
3274 best_level= level - 64;
3275 }
3276 }
3277 block[0]= best_level;
3278 s->coded_score[n] = best_score - dc*dc;
3279 if(best_level == 0) return -1;
3280 else return last_non_zero;
3281 }
3282
3283 i= last_i;
3284 assert(last_level);
3285
3286 block[ perm_scantable[last_non_zero] ]= last_level;
3287 i -= last_run + 1;
3288
3289 for(; i>start_i; i -= run_tab[i] + 1){
3290 block[ perm_scantable[i-1] ]= level_tab[i];
3291 }
3292
3293 return last_non_zero;
3294}
3295
3296//#define REFINE_STATS 1
3297static int16_t basis[64][64];
3298
3299static void build_basis(uint8_t *perm){
3300 int i, j, x, y;
3301 emms_c();
3302 for(i=0; i<8; i++){
3303 for(j=0; j<8; j++){
3304 for(y=0; y<8; y++){
3305 for(x=0; x<8; x++){
3306 double s= 0.25*(1<<BASIS_SHIFT);
3307 int index= 8*i + j;
3308 int perm_index= perm[index];
3309 if(i==0) s*= sqrt(0.5);
3310 if(j==0) s*= sqrt(0.5);
3311 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)));
3312 }
3313 }
3314 }
3315 }
3316}
3317
3318static int dct_quantize_refine(MpegEncContext *s, //FIXME breaks denoise?
3319 DCTELEM *block, int16_t *weight, DCTELEM *orig,
3320 int n, int qscale){
3321 int16_t rem[64];
40d11227 3322 LOCAL_ALIGNED_16(DCTELEM, d1, [64]);
3ada94ba
BF
3323 const uint8_t *scantable= s->intra_scantable.scantable;
3324 const uint8_t *perm_scantable= s->intra_scantable.permutated;
3325// unsigned int threshold1, threshold2;
3326// int bias=0;
3327 int run_tab[65];
3328 int prev_run=0;
3329 int prev_level=0;
3330 int qmul, qadd, start_i, last_non_zero, i, dc;
3331 uint8_t * length;
3332 uint8_t * last_length;
3333 int lambda;
3334 int rle_index, run, q = 1, sum; //q is only used when s->mb_intra is true
3335#ifdef REFINE_STATS
3336static int count=0;
3337static int after_last=0;
3338static int to_zero=0;
3339static int from_zero=0;
3340static int raise=0;
3341static int lower=0;
3342static int messed_sign=0;
3343#endif
3344
3345 if(basis[0][0] == 0)
3346 build_basis(s->dsp.idct_permutation);
3347
3348 qmul= qscale*2;
3349 qadd= (qscale-1)|1;
3350 if (s->mb_intra) {
3351 if (!s->h263_aic) {
3352 if (n < 4)
3353 q = s->y_dc_scale;
3354 else
3355 q = s->c_dc_scale;
3356 } else{
3357 /* For AIC we skip quant/dequant of INTRADC */
3358 q = 1;
3359 qadd=0;
3360 }
3361 q <<= RECON_SHIFT-3;
3362 /* note: block[0] is assumed to be positive */
3363 dc= block[0]*q;
3364// block[0] = (block[0] + (q >> 1)) / q;
3365 start_i = 1;
3ada94ba
BF
3366// if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3367// bias= 1<<(QMAT_SHIFT-1);
3368 length = s->intra_ac_vlc_length;
3369 last_length= s->intra_ac_vlc_last_length;
3370 } else {
3371 dc= 0;
3372 start_i = 0;
3ada94ba
BF
3373 length = s->inter_ac_vlc_length;
3374 last_length= s->inter_ac_vlc_last_length;
3375 }
3376 last_non_zero = s->block_last_index[n];
3377
3378#ifdef REFINE_STATS
3379{START_TIMER
3380#endif
3381 dc += (1<<(RECON_SHIFT-1));
3382 for(i=0; i<64; i++){
3383 rem[i]= dc - (orig[i]<<RECON_SHIFT); //FIXME use orig dirrectly instead of copying to rem[]
3384 }
3385#ifdef REFINE_STATS
3386STOP_TIMER("memset rem[]")}
3387#endif
3388 sum=0;
3389 for(i=0; i<64; i++){
3390 int one= 36;
3391 int qns=4;
3392 int w;
3393
3394 w= FFABS(weight[i]) + qns*one;
3395 w= 15 + (48*qns*one + w/2)/w; // 16 .. 63
3396
3397 weight[i] = w;
3398// w=weight[i] = (63*qns + (w/2)) / w;
3399
3400 assert(w>0);
3401 assert(w<(1<<6));
3402 sum += w*w;
3403 }
3404 lambda= sum*(uint64_t)s->lambda2 >> (FF_LAMBDA_SHIFT - 6 + 6 + 6 + 6);
3405#ifdef REFINE_STATS
3406{START_TIMER
3407#endif
3408 run=0;
3409 rle_index=0;
3410 for(i=start_i; i<=last_non_zero; i++){
3411 int j= perm_scantable[i];
3412 const int level= block[j];
3413 int coeff;
3414
3415 if(level){
3416 if(level<0) coeff= qmul*level - qadd;
3417 else coeff= qmul*level + qadd;
3418 run_tab[rle_index++]=run;
3419 run=0;
3420
3421 s->dsp.add_8x8basis(rem, basis[j], coeff);
3422 }else{
3423 run++;
3424 }
3425 }
3426#ifdef REFINE_STATS
3427if(last_non_zero>0){
3428STOP_TIMER("init rem[]")
3429}
3430}
3431
3432{START_TIMER
3433#endif
3434 for(;;){
3435 int best_score=s->dsp.try_8x8basis(rem, weight, basis[0], 0);
3436 int best_coeff=0;
3437 int best_change=0;
3438 int run2, best_unquant_change=0, analyze_gradient;
3439#ifdef REFINE_STATS
3440{START_TIMER
3441#endif
3442 analyze_gradient = last_non_zero > 2 || s->avctx->quantizer_noise_shaping >= 3;
3443
3444 if(analyze_gradient){
3445#ifdef REFINE_STATS
3446{START_TIMER
3447#endif
3448 for(i=0; i<64; i++){
3449 int w= weight[i];
3450
3451 d1[i] = (rem[i]*w*w + (1<<(RECON_SHIFT+12-1)))>>(RECON_SHIFT+12);
3452 }
3453#ifdef REFINE_STATS
3454STOP_TIMER("rem*w*w")}
3455{START_TIMER
3456#endif
3457 s->dsp.fdct(d1);
3458#ifdef REFINE_STATS
3459STOP_TIMER("dct")}
3460#endif
3461 }
3462
3463 if(start_i){
3464 const int level= block[0];
3465 int change, old_coeff;
3466
3467 assert(s->mb_intra);
3468
3469 old_coeff= q*level;
3470
3471 for(change=-1; change<=1; change+=2){
3472 int new_level= level + change;
3473 int score, new_coeff;
3474
3475 new_coeff= q*new_level;
3476 if(new_coeff >= 2048 || new_coeff < 0)
3477 continue;
3478
3479 score= s->dsp.try_8x8basis(rem, weight, basis[0], new_coeff - old_coeff);
3480 if(score<best_score){
3481 best_score= score;
3482 best_coeff= 0;
3483 best_change= change;
3484 best_unquant_change= new_coeff - old_coeff;
3485 }
3486 }
3487 }
3488
3489 run=0;
3490 rle_index=0;
3491 run2= run_tab[rle_index++];
3492 prev_level=0;
3493 prev_run=0;
3494
3495 for(i=start_i; i<64; i++){
3496 int j= perm_scantable[i];
3497 const int level= block[j];
3498 int change, old_coeff;
3499
3500 if(s->avctx->quantizer_noise_shaping < 3 && i > last_non_zero + 1)
3501 break;
3502
3503 if(level){
3504 if(level<0) old_coeff= qmul*level - qadd;
3505 else old_coeff= qmul*level + qadd;
3506 run2= run_tab[rle_index++]; //FIXME ! maybe after last
3507 }else{
3508 old_coeff=0;
3509 run2--;
3510 assert(run2>=0 || i >= last_non_zero );
3511 }
3512
3513 for(change=-1; change<=1; change+=2){
3514 int new_level= level + change;
3515 int score, new_coeff, unquant_change;
3516
3517 score=0;
3518 if(s->avctx->quantizer_noise_shaping < 2 && FFABS(new_level) > FFABS(level))
3519 continue;
3520
3521 if(new_level){
3522 if(new_level<0) new_coeff= qmul*new_level - qadd;
3523 else new_coeff= qmul*new_level + qadd;
3524 if(new_coeff >= 2048 || new_coeff <= -2048)
3525 continue;
3526 //FIXME check for overflow
3527
3528 if(level){
3529 if(level < 63 && level > -63){
3530 if(i < last_non_zero)
3531 score += length[UNI_AC_ENC_INDEX(run, new_level+64)]
3532 - length[UNI_AC_ENC_INDEX(run, level+64)];
3533 else
3534 score += last_length[UNI_AC_ENC_INDEX(run, new_level+64)]
3535 - last_length[UNI_AC_ENC_INDEX(run, level+64)];
3536 }
3537 }else{
3538 assert(FFABS(new_level)==1);
3539
3540 if(analyze_gradient){
3541 int g= d1[ scantable[i] ];
3542 if(g && (g^new_level) >= 0)
3543 continue;
3544 }
3545
3546 if(i < last_non_zero){
3547 int next_i= i + run2 + 1;
3548 int next_level= block[ perm_scantable[next_i] ] + 64;
3549
3550 if(next_level&(~127))
3551 next_level= 0;
3552
3553 if(next_i < last_non_zero)
3554 score += length[UNI_AC_ENC_INDEX(run, 65)]
3555 + length[UNI_AC_ENC_INDEX(run2, next_level)]
3556 - length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3557 else
3558 score += length[UNI_AC_ENC_INDEX(run, 65)]
3559 + last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3560 - last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3561 }else{
3562 score += last_length[UNI_AC_ENC_INDEX(run, 65)];
3563 if(prev_level){
3564 score += length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3565 - last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3566 }
3567 }
3568 }
3569 }else{
3570 new_coeff=0;
3571 assert(FFABS(level)==1);
3572
3573 if(i < last_non_zero){
3574 int next_i= i + run2 + 1;
3575 int next_level= block[ perm_scantable[next_i] ] + 64;
3576
3577 if(next_level&(~127))
3578 next_level= 0;
3579
3580 if(next_i < last_non_zero)
3581 score += length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3582 - length[UNI_AC_ENC_INDEX(run2, next_level)]
3583 - length[UNI_AC_ENC_INDEX(run, 65)];
3584 else
3585 score += last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3586 - last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3587 - length[UNI_AC_ENC_INDEX(run, 65)];
3588 }else{
3589 score += -last_length[UNI_AC_ENC_INDEX(run, 65)];
3590 if(prev_level){
3591 score += last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3592 - length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3593 }
3594 }
3595 }
3596
3597 score *= lambda;
3598
3599 unquant_change= new_coeff - old_coeff;
3600 assert((score < 100*lambda && score > -100*lambda) || lambda==0);
3601
3602 score+= s->dsp.try_8x8basis(rem, weight, basis[j], unquant_change);
3603 if(score<best_score){
3604 best_score= score;
3605 best_coeff= i;
3606 best_change= change;
3607 best_unquant_change= unquant_change;
3608 }
3609 }
3610 if(level){
3611 prev_level= level + 64;
3612 if(prev_level&(~127))
3613 prev_level= 0;
3614 prev_run= run;
3615 run=0;
3616 }else{
3617 run++;
3618 }
3619 }
3620#ifdef REFINE_STATS
3621STOP_TIMER("iterative step")}