lzw.h does not need get_bits.h, tiff.c needs intreadwrite.h for AV_R* though
[libav.git] / libavcodec / mpegvideo_enc.c
<
CommitLineData
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1/*
2 * The simplest mpeg encoder (well, it was the simplest!)
406792e7 3 * Copyright (c) 2000,2001 Fabrice Bellard
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4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5 *
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6 * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
7 *
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8 * This file is part of FFmpeg.
9 *
10 * FFmpeg is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * FFmpeg is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with FFmpeg; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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23 */
24
25/**
bad5537e 26 * @file libavcodec/mpegvideo_enc.c
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27 * The simplest mpeg encoder (well, it was the simplest!).
28 */
29
30#include "avcodec.h"
31#include "dsputil.h"
32#include "mpegvideo.h"
33#include "mpegvideo_common.h"
34#include "mjpegenc.h"
35#include "msmpeg4.h"
eb75a698 36#include "h263.h"
3ada94ba 37#include "faandct.h"
8b22017f 38#include "aandcttab.h"
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39#include <limits.h>
40
41//#undef NDEBUG
42//#include <assert.h>
43
44static int encode_picture(MpegEncContext *s, int picture_number);
45static int dct_quantize_refine(MpegEncContext *s, DCTELEM *block, int16_t *weight, DCTELEM *orig, int n, int qscale);
46static int sse_mb(MpegEncContext *s);
47
48/* enable all paranoid tests for rounding, overflows, etc... */
49//#define PARANOID
50
51//#define DEBUG
52
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53static uint8_t default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
54static uint8_t default_fcode_tab[MAX_MV*2+1];
55
69cea75f 56void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
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57 const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra)
58{
59 int qscale;
60 int shift=0;
61
62 for(qscale=qmin; qscale<=qmax; qscale++){
63 int i;
64 if (dsp->fdct == ff_jpeg_fdct_islow
65#ifdef FAAN_POSTSCALE
66 || dsp->fdct == ff_faandct
67#endif
68 ) {
69 for(i=0;i<64;i++) {
70 const int j= dsp->idct_permutation[i];
71 /* 16 <= qscale * quant_matrix[i] <= 7905 */
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72 /* 19952 <= ff_aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
73 /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1 << 36) / 249205026 */
74 /* 3444240 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
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75
76 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) /
77 (qscale * quant_matrix[j]));
78 }
79 } else if (dsp->fdct == fdct_ifast
80#ifndef FAAN_POSTSCALE
81 || dsp->fdct == ff_faandct
82#endif
83 ) {
84 for(i=0;i<64;i++) {
85 const int j= dsp->idct_permutation[i];
86 /* 16 <= qscale * quant_matrix[i] <= 7905 */
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87 /* 19952 <= ff_aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
88 /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
89 /* 3444240 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
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90
91 qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) /
5bdf124c 92 (ff_aanscales[i] * qscale * quant_matrix[j]));
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93 }
94 } else {
95 for(i=0;i<64;i++) {
96 const int j= dsp->idct_permutation[i];
97 /* We can safely suppose that 16 <= quant_matrix[i] <= 255
98 So 16 <= qscale * quant_matrix[i] <= 7905
99 so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
100 so 32768 >= (1<<19) / (qscale * quant_matrix[i]) >= 67
101 */
102 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / (qscale * quant_matrix[j]));
103// qmat [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
104 qmat16[qscale][0][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[j]);
105
106 if(qmat16[qscale][0][i]==0 || qmat16[qscale][0][i]==128*256) qmat16[qscale][0][i]=128*256-1;
107 qmat16[qscale][1][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][0][i]);
108 }
109 }
110
111 for(i=intra; i<64; i++){
112 int64_t max= 8191;
113 if (dsp->fdct == fdct_ifast
114#ifndef FAAN_POSTSCALE
115 || dsp->fdct == ff_faandct
116#endif
117 ) {
5bdf124c 118 max = (8191LL*ff_aanscales[i]) >> 14;
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119 }
120 while(((max * qmat[qscale][i]) >> shift) > INT_MAX){
121 shift++;
122 }
123 }
124 }
125 if(shift){
126 av_log(NULL, AV_LOG_INFO, "Warning, QMAT_SHIFT is larger than %d, overflows possible\n", QMAT_SHIFT - shift);
127 }
128}
129
130static inline void update_qscale(MpegEncContext *s){
131 s->qscale= (s->lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
132 s->qscale= av_clip(s->qscale, s->avctx->qmin, s->avctx->qmax);
133
134 s->lambda2= (s->lambda*s->lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
135}
136
137void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix){
138 int i;
139
140 if(matrix){
141 put_bits(pb, 1, 1);
142 for(i=0;i<64;i++) {
143 put_bits(pb, 8, matrix[ ff_zigzag_direct[i] ]);
144 }
145 }else
146 put_bits(pb, 1, 0);
147}
148
149static void copy_picture_attributes(MpegEncContext *s, AVFrame *dst, AVFrame *src){
150 int i;
151
152 dst->pict_type = src->pict_type;
153 dst->quality = src->quality;
154 dst->coded_picture_number = src->coded_picture_number;
155 dst->display_picture_number = src->display_picture_number;
156// dst->reference = src->reference;
157 dst->pts = src->pts;
158 dst->interlaced_frame = src->interlaced_frame;
159 dst->top_field_first = src->top_field_first;
160
161 if(s->avctx->me_threshold){
162 if(!src->motion_val[0])
163 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_val not set!\n");
164 if(!src->mb_type)
165 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.mb_type not set!\n");
166 if(!src->ref_index[0])
167 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.ref_index not set!\n");
168 if(src->motion_subsample_log2 != dst->motion_subsample_log2)
169 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_subsample_log2 doesn't match! (%d!=%d)\n",
170 src->motion_subsample_log2, dst->motion_subsample_log2);
171
172 memcpy(dst->mb_type, src->mb_type, s->mb_stride * s->mb_height * sizeof(dst->mb_type[0]));
173
174 for(i=0; i<2; i++){
175 int stride= ((16*s->mb_width )>>src->motion_subsample_log2) + 1;
176 int height= ((16*s->mb_height)>>src->motion_subsample_log2);
177
178 if(src->motion_val[i] && src->motion_val[i] != dst->motion_val[i]){
179 memcpy(dst->motion_val[i], src->motion_val[i], 2*stride*height*sizeof(int16_t));
180 }
181 if(src->ref_index[i] && src->ref_index[i] != dst->ref_index[i]){
182 memcpy(dst->ref_index[i], src->ref_index[i], s->b8_stride*2*s->mb_height*sizeof(int8_t));
183 }
184 }
185 }
186}
187
188static void update_duplicate_context_after_me(MpegEncContext *dst, MpegEncContext *src){
189#define COPY(a) dst->a= src->a
190 COPY(pict_type);
191 COPY(current_picture);
192 COPY(f_code);
193 COPY(b_code);
194 COPY(qscale);
195 COPY(lambda);
196 COPY(lambda2);
197 COPY(picture_in_gop_number);
198 COPY(gop_picture_number);
199 COPY(frame_pred_frame_dct); //FIXME don't set in encode_header
200 COPY(progressive_frame); //FIXME don't set in encode_header
201 COPY(partitioned_frame); //FIXME don't set in encode_header
202#undef COPY
203}
204
205/**
206 * sets the given MpegEncContext to defaults for encoding.
207 * the changed fields will not depend upon the prior state of the MpegEncContext.
208 */
209static void MPV_encode_defaults(MpegEncContext *s){
210 int i;
211 MPV_common_defaults(s);
212
213 for(i=-16; i<16; i++){
214 default_fcode_tab[i + MAX_MV]= 1;
215 }
216 s->me.mv_penalty= default_mv_penalty;
217 s->fcode_tab= default_fcode_tab;
218}
219
220/* init video encoder */
98a6fff9 221av_cold int MPV_encode_init(AVCodecContext *avctx)
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222{
223 MpegEncContext *s = avctx->priv_data;
224 int i;
225 int chroma_h_shift, chroma_v_shift;
226
227 MPV_encode_defaults(s);
228
229 switch (avctx->codec_id) {
230 case CODEC_ID_MPEG2VIDEO:
231 if(avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P){
232 av_log(avctx, AV_LOG_ERROR, "only YUV420 and YUV422 are supported\n");
233 return -1;
234 }
235 break;
236 case CODEC_ID_LJPEG:
237 case CODEC_ID_MJPEG:
8c7f8206 238 if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P && avctx->pix_fmt != PIX_FMT_RGB32 &&
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239 ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P) || avctx->strict_std_compliance>FF_COMPLIANCE_INOFFICIAL)){
240 av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n");
241 return -1;
242 }
243 break;
244 default:
245 if(avctx->pix_fmt != PIX_FMT_YUV420P){
246 av_log(avctx, AV_LOG_ERROR, "only YUV420 is supported\n");
247 return -1;
248 }
249 }
250
251 switch (avctx->pix_fmt) {
252 case PIX_FMT_YUVJ422P:
253 case PIX_FMT_YUV422P:
254 s->chroma_format = CHROMA_422;
255 break;
256 case PIX_FMT_YUVJ420P:
257 case PIX_FMT_YUV420P:
258 default:
259 s->chroma_format = CHROMA_420;
260 break;
261 }
262
263 s->bit_rate = avctx->bit_rate;
264 s->width = avctx->width;
265 s->height = avctx->height;
266 if(avctx->gop_size > 600 && avctx->strict_std_compliance>FF_COMPLIANCE_EXPERIMENTAL){
267 av_log(avctx, AV_LOG_ERROR, "Warning keyframe interval too large! reducing it ...\n");
268 avctx->gop_size=600;
269 }
270 s->gop_size = avctx->gop_size;
271 s->avctx = avctx;
272 s->flags= avctx->flags;
273 s->flags2= avctx->flags2;
274 s->max_b_frames= avctx->max_b_frames;
275 s->codec_id= avctx->codec->id;
276 s->luma_elim_threshold = avctx->luma_elim_threshold;
277 s->chroma_elim_threshold= avctx->chroma_elim_threshold;
278 s->strict_std_compliance= avctx->strict_std_compliance;
279 s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
280 s->quarter_sample= (avctx->flags & CODEC_FLAG_QPEL)!=0;
281 s->mpeg_quant= avctx->mpeg_quant;
282 s->rtp_mode= !!avctx->rtp_payload_size;
283 s->intra_dc_precision= avctx->intra_dc_precision;
284 s->user_specified_pts = AV_NOPTS_VALUE;
285
286 if (s->gop_size <= 1) {
287 s->intra_only = 1;
288 s->gop_size = 12;
289 } else {
290 s->intra_only = 0;
291 }
292
293 s->me_method = avctx->me_method;
294
295 /* Fixed QSCALE */
296 s->fixed_qscale = !!(avctx->flags & CODEC_FLAG_QSCALE);
297
298 s->adaptive_quant= ( s->avctx->lumi_masking
299 || s->avctx->dark_masking
300 || s->avctx->temporal_cplx_masking
301 || s->avctx->spatial_cplx_masking
302 || s->avctx->p_masking
303 || s->avctx->border_masking
304 || (s->flags&CODEC_FLAG_QP_RD))
305 && !s->fixed_qscale;
306
307 s->obmc= !!(s->flags & CODEC_FLAG_OBMC);
308 s->loop_filter= !!(s->flags & CODEC_FLAG_LOOP_FILTER);
309 s->alternate_scan= !!(s->flags & CODEC_FLAG_ALT_SCAN);
310 s->intra_vlc_format= !!(s->flags2 & CODEC_FLAG2_INTRA_VLC);
311 s->q_scale_type= !!(s->flags2 & CODEC_FLAG2_NON_LINEAR_QUANT);
312
313 if(avctx->rc_max_rate && !avctx->rc_buffer_size){
314 av_log(avctx, AV_LOG_ERROR, "a vbv buffer size is needed, for encoding with a maximum bitrate\n");
315 return -1;
316 }
317
318 if(avctx->rc_min_rate && avctx->rc_max_rate != avctx->rc_min_rate){
319 av_log(avctx, AV_LOG_INFO, "Warning min_rate > 0 but min_rate != max_rate isn't recommended!\n");
320 }
321
322 if(avctx->rc_min_rate && avctx->rc_min_rate > avctx->bit_rate){
323 av_log(avctx, AV_LOG_ERROR, "bitrate below min bitrate\n");
324 return -1;
325 }
326
327 if(avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate){
328 av_log(avctx, AV_LOG_INFO, "bitrate above max bitrate\n");
329 return -1;
330 }
331
3dd2a1c5
MN
332 if(avctx->rc_max_rate && avctx->rc_max_rate == avctx->bit_rate && avctx->rc_max_rate != avctx->rc_min_rate){
333 av_log(avctx, AV_LOG_INFO, "impossible bitrate constraints, this will fail\n");
334 }
335
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BF
336 if(avctx->rc_buffer_size && avctx->bit_rate*av_q2d(avctx->time_base) > avctx->rc_buffer_size){
337 av_log(avctx, AV_LOG_ERROR, "VBV buffer too small for bitrate\n");
338 return -1;
339 }
340
341 if(avctx->bit_rate*av_q2d(avctx->time_base) > avctx->bit_rate_tolerance){
342 av_log(avctx, AV_LOG_ERROR, "bitrate tolerance too small for bitrate\n");
343 return -1;
344 }
345
346 if( s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate
347 && (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO)
348 && 90000LL * (avctx->rc_buffer_size-1) > s->avctx->rc_max_rate*0xFFFFLL){
349
350 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");
351 }
352
353 if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4
354 && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P && s->codec_id != CODEC_ID_FLV1){
355 av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n");
356 return -1;
357 }
358
359 if(s->obmc && s->avctx->mb_decision != FF_MB_DECISION_SIMPLE){
360 av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with simple mb decision\n");
361 return -1;
362 }
363
364 if(s->obmc && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P){
365 av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with H263(+)\n");
366 return -1;
367 }
368
369 if(s->quarter_sample && s->codec_id != CODEC_ID_MPEG4){
370 av_log(avctx, AV_LOG_ERROR, "qpel not supported by codec\n");
371 return -1;
372 }
373
374 if(s->data_partitioning && s->codec_id != CODEC_ID_MPEG4){
375 av_log(avctx, AV_LOG_ERROR, "data partitioning not supported by codec\n");
376 return -1;
377 }
378
379 if(s->max_b_frames && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO){
380 av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n");
381 return -1;
382 }
383
384 if((s->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN))
385 && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG2VIDEO){
386 av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n");
387 return -1;
388 }
389
390 if(s->mpeg_quant && s->codec_id != CODEC_ID_MPEG4){ //FIXME mpeg2 uses that too
391 av_log(avctx, AV_LOG_ERROR, "mpeg2 style quantization not supported by codec\n");
392 return -1;
393 }
394
febea2f2 395 if((s->flags & CODEC_FLAG_CBP_RD) && !avctx->trellis){
3ada94ba
BF
396 av_log(avctx, AV_LOG_ERROR, "CBP RD needs trellis quant\n");
397 return -1;
398 }
399
400 if((s->flags & CODEC_FLAG_QP_RD) && s->avctx->mb_decision != FF_MB_DECISION_RD){
401 av_log(avctx, AV_LOG_ERROR, "QP RD needs mbd=2\n");
402 return -1;
403 }
404
405 if(s->avctx->scenechange_threshold < 1000000000 && (s->flags & CODEC_FLAG_CLOSED_GOP)){
7ce68923 406 av_log(avctx, AV_LOG_ERROR, "closed gop with scene change detection are not supported yet, set threshold to 1000000000\n");
3ada94ba
BF
407 return -1;
408 }
409
410 if((s->flags2 & CODEC_FLAG2_INTRA_VLC) && s->codec_id != CODEC_ID_MPEG2VIDEO){
411 av_log(avctx, AV_LOG_ERROR, "intra vlc table not supported by codec\n");
412 return -1;
413 }
414
415 if(s->flags & CODEC_FLAG_LOW_DELAY){
9cc440bf
MN
416 if (s->codec_id != CODEC_ID_MPEG2VIDEO){
417 av_log(avctx, AV_LOG_ERROR, "low delay forcing is only available for mpeg2\n");
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BF
418 return -1;
419 }
420 if (s->max_b_frames != 0){
421 av_log(avctx, AV_LOG_ERROR, "b frames cannot be used with low delay\n");
422 return -1;
423 }
424 }
425
426 if(s->q_scale_type == 1){
427 if(s->codec_id != CODEC_ID_MPEG2VIDEO){
428 av_log(avctx, AV_LOG_ERROR, "non linear quant is only available for mpeg2\n");
429 return -1;
430 }
431 if(avctx->qmax > 12){
432 av_log(avctx, AV_LOG_ERROR, "non linear quant only supports qmax <= 12 currently\n");
433 return -1;
434 }
435 }
436
437 if(s->avctx->thread_count > 1 && s->codec_id != CODEC_ID_MPEG4
438 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO
439 && (s->codec_id != CODEC_ID_H263P || !(s->flags & CODEC_FLAG_H263P_SLICE_STRUCT))){
440 av_log(avctx, AV_LOG_ERROR, "multi threaded encoding not supported by codec\n");
441 return -1;
442 }
443
b52b0913
MN
444 if(s->avctx->thread_count < 1){
445 av_log(avctx, AV_LOG_ERROR, "automatic thread number detection not supported by codec, patch welcome\n");
446 return -1;
447 }
448
3ada94ba
BF
449 if(s->avctx->thread_count > 1)
450 s->rtp_mode= 1;
451
452 if(!avctx->time_base.den || !avctx->time_base.num){
453 av_log(avctx, AV_LOG_ERROR, "framerate not set\n");
454 return -1;
455 }
456
457 i= (INT_MAX/2+128)>>8;
458 if(avctx->me_threshold >= i){
459 av_log(avctx, AV_LOG_ERROR, "me_threshold too large, max is %d\n", i - 1);
460 return -1;
461 }
462 if(avctx->mb_threshold >= i){
463 av_log(avctx, AV_LOG_ERROR, "mb_threshold too large, max is %d\n", i - 1);
464 return -1;
465 }
466
467 if(avctx->b_frame_strategy && (avctx->flags&CODEC_FLAG_PASS2)){
468 av_log(avctx, AV_LOG_INFO, "notice: b_frame_strategy only affects the first pass\n");
469 avctx->b_frame_strategy = 0;
470 }
471
9ce6c138 472 i= av_gcd(avctx->time_base.den, avctx->time_base.num);
3ada94ba
BF
473 if(i > 1){
474 av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n");
475 avctx->time_base.den /= i;
476 avctx->time_base.num /= i;
477// return -1;
478 }
479
480 if(s->codec_id==CODEC_ID_MJPEG){
481 s->intra_quant_bias= 1<<(QUANT_BIAS_SHIFT-1); //(a + x/2)/x
482 s->inter_quant_bias= 0;
483 }else if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO){
484 s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x
485 s->inter_quant_bias= 0;
486 }else{
487 s->intra_quant_bias=0;
488 s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x
489 }
490
491 if(avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
492 s->intra_quant_bias= avctx->intra_quant_bias;
493 if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)
494 s->inter_quant_bias= avctx->inter_quant_bias;
495
496 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift);
497
498 if(avctx->codec_id == CODEC_ID_MPEG4 && s->avctx->time_base.den > (1<<16)-1){
499 av_log(avctx, AV_LOG_ERROR, "timebase not supported by mpeg 4 standard\n");
500 return -1;
501 }
502 s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1;
503
504 switch(avctx->codec->id) {
505 case CODEC_ID_MPEG1VIDEO:
506 s->out_format = FMT_MPEG1;
507 s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
508 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
509 break;
510 case CODEC_ID_MPEG2VIDEO:
511 s->out_format = FMT_MPEG1;
512 s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
513 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
514 s->rtp_mode= 1;
515 break;
516 case CODEC_ID_LJPEG:
517 case CODEC_ID_MJPEG:
518 s->out_format = FMT_MJPEG;
519 s->intra_only = 1; /* force intra only for jpeg */
520 s->mjpeg_vsample[0] = 2;
521 s->mjpeg_vsample[1] = 2>>chroma_v_shift;
522 s->mjpeg_vsample[2] = 2>>chroma_v_shift;
523 s->mjpeg_hsample[0] = 2;
524 s->mjpeg_hsample[1] = 2>>chroma_h_shift;
525 s->mjpeg_hsample[2] = 2>>chroma_h_shift;
49fb20cb 526 if (!(CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER)
3ada94ba
BF
527 || ff_mjpeg_encode_init(s) < 0)
528 return -1;
529 avctx->delay=0;
530 s->low_delay=1;
531 break;
532 case CODEC_ID_H261:
49fb20cb 533 if (!CONFIG_H261_ENCODER) return -1;
3ada94ba
BF
534 if (ff_h261_get_picture_format(s->width, s->height) < 0) {
535 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);
536 return -1;
537 }
538 s->out_format = FMT_H261;
539 avctx->delay=0;
540 s->low_delay=1;
541 break;
542 case CODEC_ID_H263:
49fb20cb 543 if (!CONFIG_H263_ENCODER) return -1;
3ada94ba
BF
544 if (h263_get_picture_format(s->width, s->height) == 7) {
545 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);
546 return -1;
547 }
548 s->out_format = FMT_H263;
549 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
550 avctx->delay=0;
551 s->low_delay=1;
552 break;
553 case CODEC_ID_H263P:
554 s->out_format = FMT_H263;
555 s->h263_plus = 1;
556 /* Fx */
557 s->umvplus = (avctx->flags & CODEC_FLAG_H263P_UMV) ? 1:0;
558 s->h263_aic= (avctx->flags & CODEC_FLAG_AC_PRED) ? 1:0;
559 s->modified_quant= s->h263_aic;
560 s->alt_inter_vlc= (avctx->flags & CODEC_FLAG_H263P_AIV) ? 1:0;
561 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
562 s->loop_filter= (avctx->flags & CODEC_FLAG_LOOP_FILTER) ? 1:0;
563 s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
564 s->h263_slice_structured= (s->flags & CODEC_FLAG_H263P_SLICE_STRUCT) ? 1:0;
565
566 /* /Fx */
567 /* These are just to be sure */
568 avctx->delay=0;
569 s->low_delay=1;
570 break;
571 case CODEC_ID_FLV1:
572 s->out_format = FMT_H263;
573 s->h263_flv = 2; /* format = 1; 11-bit codes */
574 s->unrestricted_mv = 1;
575 s->rtp_mode=0; /* don't allow GOB */
576 avctx->delay=0;
577 s->low_delay=1;
578 break;
579 case CODEC_ID_RV10:
580 s->out_format = FMT_H263;
581 avctx->delay=0;
582 s->low_delay=1;
583 break;
584 case CODEC_ID_RV20:
585 s->out_format = FMT_H263;
586 avctx->delay=0;
587 s->low_delay=1;
588 s->modified_quant=1;
589 s->h263_aic=1;
590 s->h263_plus=1;
591 s->loop_filter=1;
592 s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
593 break;
594 case CODEC_ID_MPEG4:
595 s->out_format = FMT_H263;
596 s->h263_pred = 1;
597 s->unrestricted_mv = 1;
598 s->low_delay= s->max_b_frames ? 0 : 1;
599 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
600 break;
601 case CODEC_ID_MSMPEG4V1:
602 s->out_format = FMT_H263;
603 s->h263_msmpeg4 = 1;
604 s->h263_pred = 1;
605 s->unrestricted_mv = 1;
606 s->msmpeg4_version= 1;
607 avctx->delay=0;
608 s->low_delay=1;
609 break;
610 case CODEC_ID_MSMPEG4V2:
611 s->out_format = FMT_H263;
612 s->h263_msmpeg4 = 1;
613 s->h263_pred = 1;
614 s->unrestricted_mv = 1;
615 s->msmpeg4_version= 2;
616 avctx->delay=0;
617 s->low_delay=1;
618 break;
619 case CODEC_ID_MSMPEG4V3:
620 s->out_format = FMT_H263;
621 s->h263_msmpeg4 = 1;
622 s->h263_pred = 1;
623 s->unrestricted_mv = 1;
624 s->msmpeg4_version= 3;
625 s->flipflop_rounding=1;
626 avctx->delay=0;
627 s->low_delay=1;
628 break;
629 case CODEC_ID_WMV1:
630 s->out_format = FMT_H263;
631 s->h263_msmpeg4 = 1;
632 s->h263_pred = 1;
633 s->unrestricted_mv = 1;
634 s->msmpeg4_version= 4;
635 s->flipflop_rounding=1;
636 avctx->delay=0;
637 s->low_delay=1;
638 break;
639 case CODEC_ID_WMV2:
640 s->out_format = FMT_H263;
641 s->h263_msmpeg4 = 1;
642 s->h263_pred = 1;
643 s->unrestricted_mv = 1;
644 s->msmpeg4_version= 5;
645 s->flipflop_rounding=1;
646 avctx->delay=0;
647 s->low_delay=1;
648 break;
649 default:
650 return -1;
651 }
652
653 avctx->has_b_frames= !s->low_delay;
654
655 s->encoding = 1;
656
01bc48f4
BC
657 s->progressive_frame=
658 s->progressive_sequence= !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN));
659
3ada94ba
BF
660 /* init */
661 if (MPV_common_init(s) < 0)
662 return -1;
663
53727262
AJ
664 if(!s->dct_quantize)
665 s->dct_quantize = dct_quantize_c;
666 if(!s->denoise_dct)
667 s->denoise_dct = denoise_dct_c;
668 s->fast_dct_quantize = s->dct_quantize;
febea2f2 669 if(avctx->trellis)
53727262
AJ
670 s->dct_quantize = dct_quantize_trellis_c;
671
49fb20cb 672 if((CONFIG_H263P_ENCODER || CONFIG_RV20_ENCODER) && s->modified_quant)
3ada94ba 673 s->chroma_qscale_table= ff_h263_chroma_qscale_table;
01bc48f4 674
3ada94ba
BF
675 s->quant_precision=5;
676
677 ff_set_cmp(&s->dsp, s->dsp.ildct_cmp, s->avctx->ildct_cmp);
678 ff_set_cmp(&s->dsp, s->dsp.frame_skip_cmp, s->avctx->frame_skip_cmp);
679
49fb20cb 680 if (CONFIG_H261_ENCODER && s->out_format == FMT_H261)
3ada94ba 681 ff_h261_encode_init(s);
49fb20cb 682 if (CONFIG_ANY_H263_ENCODER && s->out_format == FMT_H263)
3ada94ba 683 h263_encode_init(s);
49fb20cb 684 if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version)
3ada94ba 685 ff_msmpeg4_encode_init(s);
49fb20cb 686 if ((CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
a6bc5731 687 && s->out_format == FMT_MPEG1)
3ada94ba
BF
688 ff_mpeg1_encode_init(s);
689
690 /* init q matrix */
691 for(i=0;i<64;i++) {
692 int j= s->dsp.idct_permutation[i];
49fb20cb 693 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){
3ada94ba
BF
694 s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
695 s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
696 }else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){
697 s->intra_matrix[j] =
698 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
699 }else
700 { /* mpeg1/2 */
701 s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
702 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
703 }
704 if(s->avctx->intra_matrix)
705 s->intra_matrix[j] = s->avctx->intra_matrix[i];
706 if(s->avctx->inter_matrix)
707 s->inter_matrix[j] = s->avctx->inter_matrix[i];
708 }
709
710 /* precompute matrix */
711 /* for mjpeg, we do include qscale in the matrix */
712 if (s->out_format != FMT_MJPEG) {
69cea75f 713 ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
3ada94ba 714 s->intra_matrix, s->intra_quant_bias, avctx->qmin, 31, 1);
69cea75f 715 ff_convert_matrix(&s->dsp, s->q_inter_matrix, s->q_inter_matrix16,
3ada94ba
BF
716 s->inter_matrix, s->inter_quant_bias, avctx->qmin, 31, 0);
717 }
718
719 if(ff_rate_control_init(s) < 0)
720 return -1;
721
722 return 0;
723}
724
98a6fff9 725av_cold int MPV_encode_end(AVCodecContext *avctx)
3ada94ba
BF
726{
727 MpegEncContext *s = avctx->priv_data;
728
729 ff_rate_control_uninit(s);
730
731 MPV_common_end(s);
49fb20cb 732 if ((CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER) && s->out_format == FMT_MJPEG)
3ada94ba
BF
733 ff_mjpeg_encode_close(s);
734
735 av_freep(&avctx->extradata);
736
737 return 0;
738}
739
740static int get_sae(uint8_t *src, int ref, int stride){
741 int x,y;
742 int acc=0;
743
744 for(y=0; y<16; y++){
745 for(x=0; x<16; x++){
746 acc+= FFABS(src[x+y*stride] - ref);
747 }
748 }
749
750 return acc;
751}
752
753static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride){
754 int x, y, w, h;
755 int acc=0;
756
757 w= s->width &~15;
758 h= s->height&~15;
759
760 for(y=0; y<h; y+=16){
761 for(x=0; x<w; x+=16){
762 int offset= x + y*stride;
763 int sad = s->dsp.sad[0](NULL, src + offset, ref + offset, stride, 16);
764 int mean= (s->dsp.pix_sum(src + offset, stride) + 128)>>8;
765 int sae = get_sae(src + offset, mean, stride);
766
767 acc+= sae + 500 < sad;
768 }
769 }
770 return acc;
771}
772
773
774static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
775 AVFrame *pic=NULL;
776 int64_t pts;
777 int i;
778 const int encoding_delay= s->max_b_frames;
779 int direct=1;
780
781 if(pic_arg){
782 pts= pic_arg->pts;
783 pic_arg->display_picture_number= s->input_picture_number++;
784
785 if(pts != AV_NOPTS_VALUE){
786 if(s->user_specified_pts != AV_NOPTS_VALUE){
787 int64_t time= pts;
788 int64_t last= s->user_specified_pts;
789
790 if(time <= last){
791 av_log(s->avctx, AV_LOG_ERROR, "Error, Invalid timestamp=%"PRId64", last=%"PRId64"\n", pts, s->user_specified_pts);
792 return -1;
793 }
794 }
795 s->user_specified_pts= pts;
796 }else{
797 if(s->user_specified_pts != AV_NOPTS_VALUE){
798 s->user_specified_pts=
799 pts= s->user_specified_pts + 1;
800 av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%"PRId64")\n", pts);
801 }else{
802 pts= pic_arg->display_picture_number;
803 }
804 }
805 }
806
807 if(pic_arg){
808 if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0;
809 if(pic_arg->linesize[0] != s->linesize) direct=0;
810 if(pic_arg->linesize[1] != s->uvlinesize) direct=0;
811 if(pic_arg->linesize[2] != s->uvlinesize) direct=0;
812
813// av_log(AV_LOG_DEBUG, "%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize);
814
815 if(direct){
816 i= ff_find_unused_picture(s, 1);
817
818 pic= (AVFrame*)&s->picture[i];
819 pic->reference= 3;
820
821 for(i=0; i<4; i++){
822 pic->data[i]= pic_arg->data[i];
823 pic->linesize[i]= pic_arg->linesize[i];
824 }
a4a750d3 825 ff_alloc_picture(s, (Picture*)pic, 1);
3ada94ba
BF
826 }else{
827 i= ff_find_unused_picture(s, 0);
828
829 pic= (AVFrame*)&s->picture[i];
830 pic->reference= 3;
831
a4a750d3 832 ff_alloc_picture(s, (Picture*)pic, 0);
3ada94ba
BF
833
834 if( pic->data[0] + INPLACE_OFFSET == pic_arg->data[0]
835 && pic->data[1] + INPLACE_OFFSET == pic_arg->data[1]
836 && pic->data[2] + INPLACE_OFFSET == pic_arg->data[2]){
837 // empty
838 }else{
839 int h_chroma_shift, v_chroma_shift;
840 avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
841
842 for(i=0; i<3; i++){
843 int src_stride= pic_arg->linesize[i];
844 int dst_stride= i ? s->uvlinesize : s->linesize;
845 int h_shift= i ? h_chroma_shift : 0;
846 int v_shift= i ? v_chroma_shift : 0;
847 int w= s->width >>h_shift;
848 int h= s->height>>v_shift;
849 uint8_t *src= pic_arg->data[i];
850 uint8_t *dst= pic->data[i];
851
852 if(!s->avctx->rc_buffer_size)
853 dst +=INPLACE_OFFSET;
854
855 if(src_stride==dst_stride)
856 memcpy(dst, src, src_stride*h);
857 else{
858 while(h--){
859 memcpy(dst, src, w);
860 dst += dst_stride;
861 src += src_stride;
862 }
863 }
864 }
865 }
866 }
867 copy_picture_attributes(s, pic, pic_arg);
868 pic->pts= pts; //we set this here to avoid modifiying pic_arg
869 }
870
871 /* shift buffer entries */
872 for(i=1; i<MAX_PICTURE_COUNT /*s->encoding_delay+1*/; i++)
873 s->input_picture[i-1]= s->input_picture[i];
874
875 s->input_picture[encoding_delay]= (Picture*)pic;
876
877 return 0;
878}
879
880static int skip_check(MpegEncContext *s, Picture *p, Picture *ref){
881 int x, y, plane;
882 int score=0;
883 int64_t score64=0;
884
885 for(plane=0; plane<3; plane++){
886 const int stride= p->linesize[plane];
887 const int bw= plane ? 1 : 2;
888 for(y=0; y<s->mb_height*bw; y++){
889 for(x=0; x<s->mb_width*bw; x++){
890 int off= p->type == FF_BUFFER_TYPE_SHARED ? 0: 16;
891 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);
892
893 switch(s->avctx->frame_skip_exp){
894 case 0: score= FFMAX(score, v); break;
895 case 1: score+= FFABS(v);break;
896 case 2: score+= v*v;break;
897 case 3: score64+= FFABS(v*v*(int64_t)v);break;
898 case 4: score64+= v*v*(int64_t)(v*v);break;
899 }
900 }
901 }
902 }
903
904 if(score) score64= score;
905
906 if(score64 < s->avctx->frame_skip_threshold)
907 return 1;
908 if(score64 < ((s->avctx->frame_skip_factor * (int64_t)s->lambda)>>8))
909 return 1;
910 return 0;
911}
912
913static int estimate_best_b_count(MpegEncContext *s){
914 AVCodec *codec= avcodec_find_encoder(s->avctx->codec_id);
915 AVCodecContext *c= avcodec_alloc_context();
916 AVFrame input[FF_MAX_B_FRAMES+2];
917 const int scale= s->avctx->brd_scale;
918 int i, j, out_size, p_lambda, b_lambda, lambda2;
919 int outbuf_size= s->width * s->height; //FIXME
920 uint8_t *outbuf= av_malloc(outbuf_size);
921 int64_t best_rd= INT64_MAX;
922 int best_b_count= -1;
923
924 assert(scale>=0 && scale <=3);
925
926// emms_c();
9701840b
AJ
927 p_lambda= s->last_lambda_for[FF_P_TYPE]; //s->next_picture_ptr->quality;
928 b_lambda= s->last_lambda_for[FF_B_TYPE]; //p_lambda *FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset;
3ada94ba
BF
929 if(!b_lambda) b_lambda= p_lambda; //FIXME we should do this somewhere else
930 lambda2= (b_lambda*b_lambda + (1<<FF_LAMBDA_SHIFT)/2 ) >> FF_LAMBDA_SHIFT;
931
932 c->width = s->width >> scale;
933 c->height= s->height>> scale;
934 c->flags= CODEC_FLAG_QSCALE | CODEC_FLAG_PSNR | CODEC_FLAG_INPUT_PRESERVED /*| CODEC_FLAG_EMU_EDGE*/;
935 c->flags|= s->avctx->flags & CODEC_FLAG_QPEL;
936 c->mb_decision= s->avctx->mb_decision;
937 c->me_cmp= s->avctx->me_cmp;
938 c->mb_cmp= s->avctx->mb_cmp;
939 c->me_sub_cmp= s->avctx->me_sub_cmp;
940 c->pix_fmt = PIX_FMT_YUV420P;
941 c->time_base= s->avctx->time_base;
942 c->max_b_frames= s->max_b_frames;
943
944 if (avcodec_open(c, codec) < 0)
945 return -1;
946
947 for(i=0; i<s->max_b_frames+2; i++){
948 int ysize= c->width*c->height;
949 int csize= (c->width/2)*(c->height/2);
950 Picture pre_input, *pre_input_ptr= i ? s->input_picture[i-1] : s->next_picture_ptr;
951
952 avcodec_get_frame_defaults(&input[i]);
953 input[i].data[0]= av_malloc(ysize + 2*csize);
954 input[i].data[1]= input[i].data[0] + ysize;
955 input[i].data[2]= input[i].data[1] + csize;
956 input[i].linesize[0]= c->width;
957 input[i].linesize[1]=
958 input[i].linesize[2]= c->width/2;
959
960 if(pre_input_ptr && (!i || s->input_picture[i-1])) {
961 pre_input= *pre_input_ptr;
962
963 if(pre_input.type != FF_BUFFER_TYPE_SHARED && i) {
964 pre_input.data[0]+=INPLACE_OFFSET;
965 pre_input.data[1]+=INPLACE_OFFSET;
966 pre_input.data[2]+=INPLACE_OFFSET;
967 }
968
969 s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0], pre_input.data[0], pre_input.linesize[0], c->width, c->height);
970 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);
971 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);
972 }
973 }
974
975 for(j=0; j<s->max_b_frames+1; j++){
976 int64_t rd=0;
977
978 if(!s->input_picture[j])
979 break;
980
981 c->error[0]= c->error[1]= c->error[2]= 0;
982
9701840b 983 input[0].pict_type= FF_I_TYPE;
3ada94ba
BF
984 input[0].quality= 1 * FF_QP2LAMBDA;
985 out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[0]);
986// rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT;
987
988 for(i=0; i<s->max_b_frames+1; i++){
989 int is_p= i % (j+1) == j || i==s->max_b_frames;
990
9701840b 991 input[i+1].pict_type= is_p ? FF_P_TYPE : FF_B_TYPE;
3ada94ba
BF
992 input[i+1].quality= is_p ? p_lambda : b_lambda;
993 out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[i+1]);
994 rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
995 }
996
997 /* get the delayed frames */
998 while(out_size){
999 out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);
1000 rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1001 }
1002
1003 rd += c->error[0] + c->error[1] + c->error[2];
1004
1005 if(rd < best_rd){
1006 best_rd= rd;
1007 best_b_count= j;
1008 }
1009 }
1010
1011 av_freep(&outbuf);
1012 avcodec_close(c);
1013 av_freep(&c);
1014
1015 for(i=0; i<s->max_b_frames+2; i++){
1016 av_freep(&input[i].data[0]);
1017 }
1018
1019 return best_b_count;
1020}
1021
1022static void select_input_picture(MpegEncContext *s){
1023 int i;
1024
1025 for(i=1; i<MAX_PICTURE_COUNT; i++)
1026 s->reordered_input_picture[i-1]= s->reordered_input_picture[i];
1027 s->reordered_input_picture[MAX_PICTURE_COUNT-1]= NULL;
1028
1029 /* set next picture type & ordering */
1030 if(s->reordered_input_picture[0]==NULL && s->input_picture[0]){
1031 if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture_ptr==NULL || s->intra_only){
1032 s->reordered_input_picture[0]= s->input_picture[0];
9701840b 1033 s->reordered_input_picture[0]->pict_type= FF_I_TYPE;
3ada94ba
BF
1034 s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1035 }else{
1036 int b_frames;
1037
1038 if(s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor){
1039 if(s->picture_in_gop_number < s->gop_size && skip_check(s, s->input_picture[0], s->next_picture_ptr)){
1040 //FIXME check that te gop check above is +-1 correct
1041//av_log(NULL, AV_LOG_DEBUG, "skip %p %"PRId64"\n", s->input_picture[0]->data[0], s->input_picture[0]->pts);
1042
1043 if(s->input_picture[0]->type == FF_BUFFER_TYPE_SHARED){
1044 for(i=0; i<4; i++)
1045 s->input_picture[0]->data[i]= NULL;
1046 s->input_picture[0]->type= 0;
1047 }else{
1048 assert( s->input_picture[0]->type==FF_BUFFER_TYPE_USER
1049 || s->input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1050
1051 s->avctx->release_buffer(s->avctx, (AVFrame*)s->input_picture[0]);
1052 }
1053
1054 emms_c();
1055 ff_vbv_update(s, 0);
1056
1057 goto no_output_pic;
1058 }
1059 }
1060
1061 if(s->flags&CODEC_FLAG_PASS2){
1062 for(i=0; i<s->max_b_frames+1; i++){
1063 int pict_num= s->input_picture[0]->display_picture_number + i;
1064
1065 if(pict_num >= s->rc_context.num_entries)
1066 break;
1067 if(!s->input_picture[i]){
9701840b 1068 s->rc_context.entry[pict_num-1].new_pict_type = FF_P_TYPE;
3ada94ba
BF
1069 break;
1070 }
1071
1072 s->input_picture[i]->pict_type=
1073 s->rc_context.entry[pict_num].new_pict_type;
1074 }
1075 }
1076
1077 if(s->avctx->b_frame_strategy==0){
1078 b_frames= s->max_b_frames;
1079 while(b_frames && !s->input_picture[b_frames]) b_frames--;
1080 }else if(s->avctx->b_frame_strategy==1){
1081 for(i=1; i<s->max_b_frames+1; i++){
1082 if(s->input_picture[i] && s->input_picture[i]->b_frame_score==0){
1083 s->input_picture[i]->b_frame_score=
1084 get_intra_count(s, s->input_picture[i ]->data[0],
1085 s->input_picture[i-1]->data[0], s->linesize) + 1;
1086 }
1087 }
1088 for(i=0; i<s->max_b_frames+1; i++){
1089 if(s->input_picture[i]==NULL || s->input_picture[i]->b_frame_score - 1 > s->mb_num/s->avctx->b_sensitivity) break;
1090 }
1091
1092 b_frames= FFMAX(0, i-1);
1093
1094 /* reset scores */
1095 for(i=0; i<b_frames+1; i++){
1096 s->input_picture[i]->b_frame_score=0;
1097 }
1098 }else if(s->avctx->b_frame_strategy==2){
1099 b_frames= estimate_best_b_count(s);
1100 }else{
1101 av_log(s->avctx, AV_LOG_ERROR, "illegal b frame strategy\n");
1102 b_frames=0;
1103 }
1104
1105 emms_c();
1106//static int b_count=0;
1107//b_count+= b_frames;
1108//av_log(s->avctx, AV_LOG_DEBUG, "b_frames: %d\n", b_count);
1109
1110 for(i= b_frames - 1; i>=0; i--){
1111 int type= s->input_picture[i]->pict_type;
9701840b 1112 if(type && type != FF_B_TYPE)
3ada94ba
BF
1113 b_frames= i;
1114 }
9701840b 1115 if(s->input_picture[b_frames]->pict_type == FF_B_TYPE && b_frames == s->max_b_frames){
3ada94ba
BF
1116 av_log(s->avctx, AV_LOG_ERROR, "warning, too many b frames in a row\n");
1117 }
1118
1119 if(s->picture_in_gop_number + b_frames >= s->gop_size){
1120 if((s->flags2 & CODEC_FLAG2_STRICT_GOP) && s->gop_size > s->picture_in_gop_number){
1121 b_frames= s->gop_size - s->picture_in_gop_number - 1;
1122 }else{
1123 if(s->flags & CODEC_FLAG_CLOSED_GOP)
1124 b_frames=0;
9701840b 1125 s->input_picture[b_frames]->pict_type= FF_I_TYPE;
3ada94ba
BF
1126 }
1127 }
1128
1129 if( (s->flags & CODEC_FLAG_CLOSED_GOP)
1130 && b_frames
9701840b 1131 && s->input_picture[b_frames]->pict_type== FF_I_TYPE)
3ada94ba
BF
1132 b_frames--;
1133
1134 s->reordered_input_picture[0]= s->input_picture[b_frames];
9701840b
AJ
1135 if(s->reordered_input_picture[0]->pict_type != FF_I_TYPE)
1136 s->reordered_input_picture[0]->pict_type= FF_P_TYPE;
3ada94ba
BF
1137 s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1138 for(i=0; i<b_frames; i++){
1139 s->reordered_input_picture[i+1]= s->input_picture[i];
9701840b 1140 s->reordered_input_picture[i+1]->pict_type= FF_B_TYPE;
3ada94ba
BF
1141 s->reordered_input_picture[i+1]->coded_picture_number= s->coded_picture_number++;
1142 }
1143 }
1144 }
1145no_output_pic:
1146 if(s->reordered_input_picture[0]){
9701840b 1147 s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=FF_B_TYPE ? 3 : 0;
3ada94ba 1148
8d2fc163 1149 ff_copy_picture(&s->new_picture, s->reordered_input_picture[0]);
3ada94ba
BF
1150
1151 if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_SHARED || s->avctx->rc_buffer_size){
1152 // input is a shared pix, so we can't modifiy it -> alloc a new one & ensure that the shared one is reuseable
1153
1154 int i= ff_find_unused_picture(s, 0);
1155 Picture *pic= &s->picture[i];
1156
1157 pic->reference = s->reordered_input_picture[0]->reference;
a4a750d3 1158 ff_alloc_picture(s, pic, 0);
3ada94ba
BF
1159
1160 /* mark us unused / free shared pic */
1161 if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_INTERNAL)
1162 s->avctx->release_buffer(s->avctx, (AVFrame*)s->reordered_input_picture[0]);
1163 for(i=0; i<4; i++)
1164 s->reordered_input_picture[0]->data[i]= NULL;
1165 s->reordered_input_picture[0]->type= 0;
1166
1167 copy_picture_attributes(s, (AVFrame*)pic, (AVFrame*)s->reordered_input_picture[0]);
1168
1169 s->current_picture_ptr= pic;
1170 }else{
1171 // input is not a shared pix -> reuse buffer for current_pix
1172
1173 assert( s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
1174 || s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1175
1176 s->current_picture_ptr= s->reordered_input_picture[0];
1177 for(i=0; i<4; i++){
1178 s->new_picture.data[i]+= INPLACE_OFFSET;
1179 }
1180 }
8d2fc163 1181 ff_copy_picture(&s->current_picture, s->current_picture_ptr);
3ada94ba
BF
1182
1183 s->picture_number= s->new_picture.display_picture_number;
1184//printf("dpn:%d\n", s->picture_number);
1185 }else{
1186 memset(&s->new_picture, 0, sizeof(Picture));
1187 }
1188}
1189
1190int MPV_encode_picture(AVCodecContext *avctx,
1191 unsigned char *buf, int buf_size, void *data)
1192{
1193 MpegEncContext *s = avctx->priv_data;
1194 AVFrame *pic_arg = data;
1195 int i, stuffing_count;
1196
1197 for(i=0; i<avctx->thread_count; i++){
1198 int start_y= s->thread_context[i]->start_mb_y;
1199 int end_y= s->thread_context[i]-> end_mb_y;
1200 int h= s->mb_height;
1201 uint8_t *start= buf + (size_t)(((int64_t) buf_size)*start_y/h);
1202 uint8_t *end = buf + (size_t)(((int64_t) buf_size)* end_y/h);
1203
1204 init_put_bits(&s->thread_context[i]->pb, start, end - start);
1205 }
1206
1207 s->picture_in_gop_number++;
1208
1209 if(load_input_picture(s, pic_arg) < 0)
1210 return -1;
1211
1212 select_input_picture(s);
1213
1214 /* output? */
1215 if(s->new_picture.data[0]){
1216 s->pict_type= s->new_picture.pict_type;
1217//emms_c();
1218//printf("qs:%f %f %d\n", s->new_picture.quality, s->current_picture.quality, s->qscale);
1219 MPV_frame_start(s, avctx);
1220vbv_retry:
1221 if (encode_picture(s, s->picture_number) < 0)
1222 return -1;
1223
3ada94ba
BF
1224 avctx->header_bits = s->header_bits;
1225 avctx->mv_bits = s->mv_bits;
1226 avctx->misc_bits = s->misc_bits;
1227 avctx->i_tex_bits = s->i_tex_bits;
1228 avctx->p_tex_bits = s->p_tex_bits;
1229 avctx->i_count = s->i_count;
1230 avctx->p_count = s->mb_num - s->i_count - s->skip_count; //FIXME f/b_count in avctx
1231 avctx->skip_count = s->skip_count;
1232
1233 MPV_frame_end(s);
1234
49fb20cb 1235 if (CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG)
3ada94ba
BF
1236 ff_mjpeg_encode_picture_trailer(s);
1237
1238 if(avctx->rc_buffer_size){
1239 RateControlContext *rcc= &s->rc_context;
3bff4d8b 1240 int max_size= rcc->buffer_index * avctx->rc_max_available_vbv_use;
3ada94ba
BF
1241
1242 if(put_bits_count(&s->pb) > max_size && s->lambda < s->avctx->lmax){
1243 s->next_lambda= FFMAX(s->lambda+1, s->lambda*(s->qscale+1) / s->qscale);
1244 if(s->adaptive_quant){
1245 int i;
1246 for(i=0; i<s->mb_height*s->mb_stride; i++)
1247 s->lambda_table[i]= FFMAX(s->lambda_table[i]+1, s->lambda_table[i]*(s->qscale+1) / s->qscale);
1248 }
1249 s->mb_skipped = 0; //done in MPV_frame_start()
9701840b 1250 if(s->pict_type==FF_P_TYPE){ //done in encode_picture() so we must undo it
3ada94ba
BF
1251 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
1252 s->no_rounding ^= 1;
1253 }
9701840b 1254 if(s->pict_type!=FF_B_TYPE){
3ada94ba
BF
1255 s->time_base= s->last_time_base;
1256 s->last_non_b_time= s->time - s->pp_time;
1257 }
1258// av_log(NULL, AV_LOG_ERROR, "R:%d ", s->next_lambda);
1259 for(i=0; i<avctx->thread_count; i++){
1260 PutBitContext *pb= &s->thread_context[i]->pb;
1261 init_put_bits(pb, pb->buf, pb->buf_end - pb->buf);
1262 }
1263 goto vbv_retry;
1264 }
1265
1266 assert(s->avctx->rc_max_rate);
1267 }
1268
1269 if(s->flags&CODEC_FLAG_PASS1)
1270 ff_write_pass1_stats(s);
1271
1272 for(i=0; i<4; i++){
1273 s->current_picture_ptr->error[i]= s->current_picture.error[i];
1274 avctx->error[i] += s->current_picture_ptr->error[i];
1275 }
1276
1277 if(s->flags&CODEC_FLAG_PASS1)
1278 assert(avctx->header_bits + avctx->mv_bits + avctx->misc_bits + avctx->i_tex_bits + avctx->p_tex_bits == put_bits_count(&s->pb));
1279 flush_put_bits(&s->pb);
1280 s->frame_bits = put_bits_count(&s->pb);
1281
1282 stuffing_count= ff_vbv_update(s, s->frame_bits);
1283 if(stuffing_count){
1284 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < stuffing_count + 50){
1285 av_log(s->avctx, AV_LOG_ERROR, "stuffing too large\n");
1286 return -1;
1287 }
1288
1289 switch(s->codec_id){
1290 case CODEC_ID_MPEG1VIDEO:
1291 case CODEC_ID_MPEG2VIDEO:
1292 while(stuffing_count--){
1293 put_bits(&s->pb, 8, 0);
1294 }
1295 break;
1296 case CODEC_ID_MPEG4:
1297 put_bits(&s->pb, 16, 0);
1298 put_bits(&s->pb, 16, 0x1C3);
1299 stuffing_count -= 4;
1300 while(stuffing_count--){
1301 put_bits(&s->pb, 8, 0xFF);
1302 }
1303 break;
1304 default:
1305 av_log(s->avctx, AV_LOG_ERROR, "vbv buffer overflow\n");
1306 }
1307 flush_put_bits(&s->pb);
1308 s->frame_bits = put_bits_count(&s->pb);
1309 }
1310
1311 /* update mpeg1/2 vbv_delay for CBR */
1312 if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && s->out_format == FMT_MPEG1
1313 && 90000LL * (avctx->rc_buffer_size-1) <= s->avctx->rc_max_rate*0xFFFFLL){
4601e76a
MN
1314 int vbv_delay, min_delay;
1315 double inbits = s->avctx->rc_max_rate*av_q2d(s->avctx->time_base);
1316 int minbits= s->frame_bits - 8*(s->vbv_delay_ptr - s->pb.buf - 1);
1317 double bits = s->rc_context.buffer_index + minbits - inbits;
1318
1319 if(bits<0)
1320 av_log(s->avctx, AV_LOG_ERROR, "Internal error, negative bits\n");
3ada94ba
BF
1321
1322 assert(s->repeat_first_field==0);
1323
4601e76a
MN
1324 vbv_delay= bits * 90000 / s->avctx->rc_max_rate;
1325 min_delay= (minbits * 90000LL + s->avctx->rc_max_rate - 1)/ s->avctx->rc_max_rate;
1326
1327 vbv_delay= FFMAX(vbv_delay, min_delay);
1328
3ada94ba
BF
1329 assert(vbv_delay < 0xFFFF);
1330
1331 s->vbv_delay_ptr[0] &= 0xF8;
1332 s->vbv_delay_ptr[0] |= vbv_delay>>13;
1333 s->vbv_delay_ptr[1] = vbv_delay>>5;
1334 s->vbv_delay_ptr[2] &= 0x07;
1335 s->vbv_delay_ptr[2] |= vbv_delay<<3;
1336 }
1337 s->total_bits += s->frame_bits;
1338 avctx->frame_bits = s->frame_bits;
1339 }else{
fb53b4a0 1340 assert((put_bits_ptr(&s->pb) == s->pb.buf));
3ada94ba
BF
1341 s->frame_bits=0;
1342 }
1343 assert((s->frame_bits&7)==0);
1344
1345 return s->frame_bits/8;
1346}
1347
1348static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold)
1349{
1350 static const char tab[64]=
1351 {3,2,2,1,1,1,1,1,
1352 1,1,1,1,1,1,1,1,
1353 1,1,1,1,1,1,1,1,
1354 0,0,0,0,0,0,0,0,
1355 0,0,0,0,0,0,0,0,
1356 0,0,0,0,0,0,0,0,
1357 0,0,0,0,0,0,0,0,
1358 0,0,0,0,0,0,0,0};
1359 int score=0;
1360 int run=0;
1361 int i;
1362 DCTELEM *block= s->block[n];
1363 const int last_index= s->block_last_index[n];
1364 int skip_dc;
1365
1366 if(threshold<0){
1367 skip_dc=0;
1368 threshold= -threshold;
1369 }else
1370 skip_dc=1;
1371
bd107136 1372 /* Are all we could set to zero already zero? */
3ada94ba
BF
1373 if(last_index<=skip_dc - 1) return;
1374
1375 for(i=0; i<=last_index; i++){
1376 const int j = s->intra_scantable.permutated[i];
1377 const int level = FFABS(block[j]);
1378 if(level==1){
1379 if(skip_dc && i==0) continue;
1380 score+= tab[run];
1381 run=0;
1382 }else if(level>1){
1383 return;
1384 }else{
1385 run++;
1386 }
1387 }
1388 if(score >= threshold) return;
1389 for(i=skip_dc; i<=last_index; i++){
1390 const int j = s->intra_scantable.permutated[i];
1391 block[j]=0;
1392 }
1393 if(block[0]) s->block_last_index[n]= 0;
1394 else s->block_last_index[n]= -1;
1395}
1396
1397static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1398{
1399 int i;
1400 const int maxlevel= s->max_qcoeff;
1401 const int minlevel= s->min_qcoeff;
1402 int overflow=0;
1403
1404 if(s->mb_intra){
1405 i=1; //skip clipping of intra dc
1406 }else
1407 i=0;
1408
1409 for(;i<=last_index; i++){
1410 const int j= s->intra_scantable.permutated[i];
1411 int level = block[j];
1412
1413 if (level>maxlevel){
1414 level=maxlevel;
1415 overflow++;
1416 }else if(level<minlevel){
1417 level=minlevel;
1418 overflow++;
1419 }
1420
1421 block[j]= level;
1422 }
1423
1424 if(overflow && s->avctx->mb_decision == FF_MB_DECISION_SIMPLE)
1425 av_log(s->avctx, AV_LOG_INFO, "warning, clipping %d dct coefficients to %d..%d\n", overflow, minlevel, maxlevel);
1426}
1427
f073a393 1428static void get_visual_weight(int16_t *weight, uint8_t *ptr, int stride){
3ada94ba
BF
1429 int x, y;
1430//FIXME optimize
1431 for(y=0; y<8; y++){
1432 for(x=0; x<8; x++){
1433 int x2, y2;
1434 int sum=0;
1435 int sqr=0;
1436 int count=0;
1437
1438 for(y2= FFMAX(y-1, 0); y2 < FFMIN(8, y+2); y2++){
1439 for(x2= FFMAX(x-1, 0); x2 < FFMIN(8, x+2); x2++){
1440 int v= ptr[x2 + y2*stride];
1441 sum += v;
1442 sqr += v*v;
1443 count++;
1444 }
1445 }
1446 weight[x + 8*y]= (36*ff_sqrt(count*sqr - sum*sum)) / count;
1447 }
1448 }
1449}
1450
1451static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count)
1452{
1453 int16_t weight[8][64];
1454 DCTELEM orig[8][64];
1455 const int mb_x= s->mb_x;
1456 const int mb_y= s->mb_y;
1457 int i;
1458 int skip_dct[8];
1459 int dct_offset = s->linesize*8; //default for progressive frames
1460 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1461 int wrap_y, wrap_c;
1462
1463 for(i=0; i<mb_block_count; i++) skip_dct[i]=s->skipdct;
1464
1465 if(s->adaptive_quant){
1466 const int last_qp= s->qscale;
1467 const int mb_xy= mb_x + mb_y*s->mb_stride;
1468
1469 s->lambda= s->lambda_table[mb_xy];
1470 update_qscale(s);
1471
1472 if(!(s->flags&CODEC_FLAG_QP_RD)){
1473 s->qscale= s->current_picture_ptr->qscale_table[mb_xy];
1474 s->dquant= s->qscale - last_qp;
1475
1476 if(s->out_format==FMT_H263){
1477 s->dquant= av_clip(s->dquant, -2, 2);
1478
1479 if(s->codec_id==CODEC_ID_MPEG4){
1480 if(!s->mb_intra){
9701840b 1481 if(s->pict_type == FF_B_TYPE){
3ada94ba
BF
1482 if(s->dquant&1 || s->mv_dir&MV_DIRECT)
1483 s->dquant= 0;
1484 }
1485 if(s->mv_type==MV_TYPE_8X8)
1486 s->dquant=0;
1487 }
1488 }
1489 }
1490 }
1491 ff_set_qscale(s, last_qp + s->dquant);
1492 }else if(s->flags&CODEC_FLAG_QP_RD)
1493 ff_set_qscale(s, s->qscale + s->dquant);
1494
1495 wrap_y = s->linesize;
1496 wrap_c = s->uvlinesize;
1497 ptr_y = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
1498 ptr_cb = s->new_picture.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1499 ptr_cr = s->new_picture.data[2] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1500
1501 if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
1502 uint8_t *ebuf= s->edge_emu_buffer + 32;
1503 ff_emulated_edge_mc(ebuf , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width , s->height);
1504 ptr_y= ebuf;
1505 ff_emulated_edge_mc(ebuf+18*wrap_y , ptr_cb, wrap_c, 8, mb_block_height, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
1506 ptr_cb= ebuf+18*wrap_y;
1507 ff_emulated_edge_mc(ebuf+18*wrap_y+8, ptr_cr, wrap_c, 8, mb_block_height, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
1508 ptr_cr= ebuf+18*wrap_y+8;
1509 }
1510
1511 if (s->mb_intra) {
1512 if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1513 int progressive_score, interlaced_score;
1514
1515 s->interlaced_dct=0;
1516 progressive_score= s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y, 8)
1517 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y*8, NULL, wrap_y, 8) - 400;
1518
1519 if(progressive_score > 0){
1520 interlaced_score = s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y*2, 8)
1521 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y , NULL, wrap_y*2, 8);
1522 if(progressive_score > interlaced_score){
1523 s->interlaced_dct=1;
1524
1525 dct_offset= wrap_y;
1526 wrap_y<<=1;
1527 if (s->chroma_format == CHROMA_422)
1528 wrap_c<<=1;
1529 }
1530 }
1531 }
1532
1533 s->dsp.get_pixels(s->block[0], ptr_y , wrap_y);
1534 s->dsp.get_pixels(s->block[1], ptr_y + 8, wrap_y);
1535 s->dsp.get_pixels(s->block[2], ptr_y + dct_offset , wrap_y);
1536 s->dsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y);
1537
1538 if(s->flags&CODEC_FLAG_GRAY){
1539 skip_dct[4]= 1;
1540 skip_dct[5]= 1;
1541 }else{
1542 s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c);
1543 s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c);
1544 if(!s->chroma_y_shift){ /* 422 */
1545 s->dsp.get_pixels(s->block[6], ptr_cb + (dct_offset>>1), wrap_c);
1546 s->dsp.get_pixels(s->block[7], ptr_cr + (dct_offset>>1), wrap_c);
1547 }
1548 }
1549 }else{
1550 op_pixels_func (*op_pix)[4];
1551 qpel_mc_func (*op_qpix)[16];
1552 uint8_t *dest_y, *dest_cb, *dest_cr;
1553
1554 dest_y = s->dest[0];
1555 dest_cb = s->dest[1];
1556 dest_cr = s->dest[2];
1557
9701840b 1558 if ((!s->no_rounding) || s->pict_type==FF_B_TYPE){
3ada94ba
BF
1559 op_pix = s->dsp.put_pixels_tab;
1560 op_qpix= s->dsp.put_qpel_pixels_tab;
1561 }else{
1562 op_pix = s->dsp.put_no_rnd_pixels_tab;
1563 op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab;
1564 }
1565
1566 if (s->mv_dir & MV_DIR_FORWARD) {
1567 MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix);
1568 op_pix = s->dsp.avg_pixels_tab;
1569 op_qpix= s->dsp.avg_qpel_pixels_tab;
1570 }
1571 if (s->mv_dir & MV_DIR_BACKWARD) {
1572 MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix);
1573 }
1574
1575 if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1576 int progressive_score, interlaced_score;
1577
1578 s->interlaced_dct=0;
1579 progressive_score= s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y, 8)
1580 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y*8, ptr_y + wrap_y*8, wrap_y, 8) - 400;
1581
1582 if(s->avctx->ildct_cmp == FF_CMP_VSSE) progressive_score -= 400;
1583
1584 if(progressive_score>0){
1585 interlaced_score = s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y*2, 8)
1586 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y , ptr_y + wrap_y , wrap_y*2, 8);
1587
1588 if(progressive_score > interlaced_score){
1589 s->interlaced_dct=1;
1590
1591 dct_offset= wrap_y;
1592 wrap_y<<=1;
1593 if (s->chroma_format == CHROMA_422)
1594 wrap_c<<=1;
1595 }
1596 }
1597 }
1598
1599 s->dsp.diff_pixels(s->block[0], ptr_y , dest_y , wrap_y);
1600 s->dsp.diff_pixels(s->block[1], ptr_y + 8, dest_y + 8, wrap_y);
1601 s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset , dest_y + dct_offset , wrap_y);
1602 s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y);
1603
1604 if(s->flags&CODEC_FLAG_GRAY){
1605 skip_dct[4]= 1;
1606 skip_dct[5]= 1;
1607 }else{
1608 s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
1609 s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
1610 if(!s->chroma_y_shift){ /* 422 */
1611 s->dsp.diff_pixels(s->block[6], ptr_cb + (dct_offset>>1), dest_cb + (dct_offset>>1), wrap_c);
1612 s->dsp.diff_pixels(s->block[7], ptr_cr + (dct_offset>>1), dest_cr + (dct_offset>>1), wrap_c);
1613 }
1614 }
1615 /* pre quantization */
1616 if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){
1617 //FIXME optimize
1618 if(s->dsp.sad[1](NULL, ptr_y , dest_y , wrap_y, 8) < 20*s->qscale) skip_dct[0]= 1;
1619 if(s->dsp.sad[1](NULL, ptr_y + 8, dest_y + 8, wrap_y, 8) < 20*s->qscale) skip_dct[1]= 1;
1620 if(s->dsp.sad[1](NULL, ptr_y +dct_offset , dest_y +dct_offset , wrap_y, 8) < 20*s->qscale) skip_dct[2]= 1;
1621 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;
1622 if(s->dsp.sad[1](NULL, ptr_cb , dest_cb , wrap_c, 8) < 20*s->qscale) skip_dct[4]= 1;
1623 if(s->dsp.sad[1](NULL, ptr_cr , dest_cr , wrap_c, 8) < 20*s->qscale) skip_dct[5]= 1;
1624 if(!s->chroma_y_shift){ /* 422 */
1625 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;
1626 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;
1627 }
1628 }
1629 }
1630
1631 if(s->avctx->quantizer_noise_shaping){
f073a393
DB
1632 if(!skip_dct[0]) get_visual_weight(weight[0], ptr_y , wrap_y);
1633 if(!skip_dct[1]) get_visual_weight(weight[1], ptr_y + 8, wrap_y);
1634 if(!skip_dct[2]) get_visual_weight(weight[2], ptr_y + dct_offset , wrap_y);
1635 if(!skip_dct[3]) get_visual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y);
1636 if(!skip_dct[4]) get_visual_weight(weight[4], ptr_cb , wrap_c);
1637 if(!skip_dct[5]) get_visual_weight(weight[5], ptr_cr , wrap_c);
3ada94ba 1638 if(!s->chroma_y_shift){ /* 422 */
f073a393
DB
1639 if(!skip_dct[6]) get_visual_weight(weight[6], ptr_cb + (dct_offset>>1), wrap_c);
1640 if(!skip_dct[7]) get_visual_weight(weight[7], ptr_cr + (dct_offset>>1), wrap_c);
3ada94ba
BF
1641 }
1642 memcpy(orig[0], s->block[0], sizeof(DCTELEM)*64*mb_block_count);
1643 }
1644
1645 /* DCT & quantize */
1646 assert(s->out_format!=FMT_MJPEG || s->qscale==8);
1647 {
1648 for(i=0;i<mb_block_count;i++) {
1649 if(!skip_dct[i]){
1650 int overflow;
1651 s->block_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow);
1652 // FIXME we could decide to change to quantizer instead of clipping
1653 // JS: I don't think that would be a good idea it could lower quality instead
1654 // of improve it. Just INTRADC clipping deserves changes in quantizer
1655 if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1656 }else
1657 s->block_last_index[i]= -1;
1658 }
1659 if(s->avctx->quantizer_noise_shaping){
1660 for(i=0;i<mb_block_count;i++) {
1661 if(!skip_dct[i]){
1662 s->block_last_index[i] = dct_quantize_refine(s, s->block[i], weight[i], orig[i], i, s->qscale);
1663 }
1664 }
1665 }
1666
1667 if(s->luma_elim_threshold && !s->mb_intra)
1668 for(i=0; i<4; i++)
1669 dct_single_coeff_elimination(s, i, s->luma_elim_threshold);
1670 if(s->chroma_elim_threshold && !s->mb_intra)
1671 for(i=4; i<mb_block_count; i++)
1672 dct_single_coeff_elimination(s, i, s->chroma_elim_threshold);
1673
1674 if(s->flags & CODEC_FLAG_CBP_RD){
1675 for(i=0;i<mb_block_count;i++) {
1676 if(s->block_last_index[i] == -1)
1677 s->coded_score[i]= INT_MAX/256;
1678 }
1679 }
1680 }
1681
1682 if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
1683 s->block_last_index[4]=
1684 s->block_last_index[5]= 0;
1685 s->block[4][0]=
1686 s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale;
1687 }
1688
1689 //non c quantize code returns incorrect block_last_index FIXME
1690 if(s->alternate_scan && s->dct_quantize != dct_quantize_c){
1691 for(i=0; i<mb_block_count; i++){
1692 int j;
1693 if(s->block_last_index[i]>0){
1694 for(j=63; j>0; j--){
1695 if(s->block[i][ s->intra_scantable.permutated[j] ]) break;
1696 }
1697 s->block_last_index[i]= j;
1698 }
1699 }
1700 }
1701
1702 /* huffman encode */
1703 switch(s->codec_id){ //FIXME funct ptr could be slightly faster
1704 case CODEC_ID_MPEG1VIDEO:
1705 case CODEC_ID_MPEG2VIDEO:
49fb20cb 1706 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
56be950a
AJ
1707 mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1708 break;
3ada94ba 1709 case CODEC_ID_MPEG4:
49fb20cb 1710 if (CONFIG_MPEG4_ENCODER)
674eeb5f
AJ
1711 mpeg4_encode_mb(s, s->block, motion_x, motion_y);
1712 break;
3ada94ba
BF
1713 case CODEC_ID_MSMPEG4V2:
1714 case CODEC_ID_MSMPEG4V3:
1715 case CODEC_ID_WMV1:
49fb20cb 1716 if (CONFIG_MSMPEG4_ENCODER)
3ada94ba
BF
1717 msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1718 break;
1719 case CODEC_ID_WMV2:
49fb20cb 1720 if (CONFIG_WMV2_ENCODER)
3ada94ba
BF
1721 ff_wmv2_encode_mb(s, s->block, motion_x, motion_y);
1722 break;
1723 case CODEC_ID_H261:
49fb20cb 1724 if (CONFIG_H261_ENCODER)
3ada94ba
BF
1725 ff_h261_encode_mb(s, s->block, motion_x, motion_y);
1726 break;
1727 case CODEC_ID_H263:
1728 case CODEC_ID_H263P:
1729 case CODEC_ID_FLV1:
1730 case CODEC_ID_RV10:
1731 case CODEC_ID_RV20:
0bd48530 1732 if (CONFIG_H263_ENCODER)
674eeb5f
AJ
1733 h263_encode_mb(s, s->block, motion_x, motion_y);
1734 break;
3ada94ba 1735 case CODEC_ID_MJPEG:
49fb20cb 1736 if (CONFIG_MJPEG_ENCODER)
3ada94ba
BF
1737 ff_mjpeg_encode_mb(s, s->block);
1738 break;
1739 default:
1740 assert(0);
1741 }
1742}
1743
1744static av_always_inline void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
1745{
1746 if (s->chroma_format == CHROMA_420) encode_mb_internal(s, motion_x, motion_y, 8, 6);
1747 else encode_mb_internal(s, motion_x, motion_y, 16, 8);
1748}
1749
3ada94ba
BF
1750static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1751 int i;
1752
1753 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1754
1755 /* mpeg1 */
1756 d->mb_skip_run= s->mb_skip_run;
1757 for(i=0; i<3; i++)
1758 d->last_dc[i]= s->last_dc[i];
1759
1760 /* statistics */
1761 d->mv_bits= s->mv_bits;
1762 d->i_tex_bits= s->i_tex_bits;
1763 d->p_tex_bits= s->p_tex_bits;
1764 d->i_count= s->i_count;
1765 d->f_count= s->f_count;
1766 d->b_count= s->b_count;
1767 d->skip_count= s->skip_count;
1768 d->misc_bits= s->misc_bits;
1769 d->last_bits= 0;
1770
1771 d->mb_skipped= 0;
1772 d->qscale= s->qscale;
1773 d->dquant= s->dquant;
9f175aa0
MN
1774
1775 d->esc3_level_length= s->esc3_level_length;
3ada94ba
BF
1776}
1777
1778static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1779 int i;
1780
1781 memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
1782 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1783
1784 /* mpeg1 */
1785 d->mb_skip_run= s->mb_skip_run;
1786 for(i=0; i<3; i++)
1787 d->last_dc[i]= s->last_dc[i];
1788
1789 /* statistics */
1790 d->mv_bits= s->mv_bits;
1791 d->i_tex_bits= s->i_tex_bits;
1792 d->p_tex_bits= s->p_tex_bits;
1793 d->i_count= s->i_count;
1794 d->f_count= s->f_count;
1795 d->b_count= s->b_count;
1796 d->skip_count= s->skip_count;
1797 d->misc_bits= s->misc_bits;
1798
1799 d->mb_intra= s->mb_intra;
1800 d->mb_skipped= s->mb_skipped;
1801 d->mv_type= s->mv_type;
1802 d->mv_dir= s->mv_dir;
1803 d->pb= s->pb;
1804 if(s->data_partitioning){
1805 d->pb2= s->pb2;
1806 d->tex_pb= s->tex_pb;
1807 }
1808 d->block= s->block;
1809 for(i=0; i<8; i++)
1810 d->block_last_index[i]= s->block_last_index[i];
1811 d->interlaced_dct= s->interlaced_dct;
1812 d->qscale= s->qscale;
9f175aa0
MN
1813
1814 d->esc3_level_length= s->esc3_level_length;
3ada94ba
BF
1815}
1816
1817static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type,
1818 PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
1819 int *dmin, int *next_block, int motion_x, int motion_y)
1820{
1821 int score;
1822 uint8_t *dest_backup[3];
1823
1824 copy_context_before_encode(s, backup, type);
1825
1826 s->block= s->blocks[*next_block];
1827 s->pb= pb[*next_block];
1828 if(s->data_partitioning){
1829 s->pb2 = pb2 [*next_block];
1830 s->tex_pb= tex_pb[*next_block];
1831 }
1832
1833 if(*next_block){
1834 memcpy(dest_backup, s->dest, sizeof(s->dest));
1835 s->dest[0] = s->rd_scratchpad;
1836 s->dest[1] = s->rd_scratchpad + 16*s->linesize;
1837 s->dest[2] = s->rd_scratchpad + 16*s->linesize + 8;
1838 assert(s->linesize >= 32); //FIXME
1839 }
1840
1841 encode_mb(s, motion_x, motion_y);
1842
1843 score= put_bits_count(&s->pb);
1844 if(s->data_partitioning){
1845 score+= put_bits_count(&s->pb2);
1846 score+= put_bits_count(&s->tex_pb);
1847 }
1848
1849 if(s->avctx->mb_decision == FF_MB_DECISION_RD){
1850 MPV_decode_mb(s, s->block);
1851
1852 score *= s->lambda2;
1853 score += sse_mb(s) << FF_LAMBDA_SHIFT;
1854 }
1855
1856 if(*next_block){
1857 memcpy(s->dest, dest_backup, sizeof(s->dest));
1858 }
1859
1860 if(score<*dmin){
1861 *dmin= score;
1862 *next_block^=1;
1863
1864 copy_context_after_encode(best, s, type);
1865 }
1866}
1867
1868static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){
1869 uint32_t *sq = ff_squareTbl + 256;
1870 int acc=0;
1871 int x,y;
1872
1873 if(w==16 && h==16)
1874 return s->dsp.sse[0](NULL, src1, src2, stride, 16);
1875 else if(w==8 && h==8)
1876 return s->dsp.sse[1](NULL, src1, src2, stride, 8);
1877
1878 for(y=0; y<h; y++){
1879 for(x=0; x<w; x++){
1880 acc+= sq[src1[x + y*stride] - src2[x + y*stride]];
1881 }
1882 }
1883
1884 assert(acc>=0);
1885
1886 return acc;
1887}
1888
1889static int sse_mb(MpegEncContext *s){
1890 int w= 16;
1891 int h= 16;
1892
1893 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
1894 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
1895
1896 if(w==16 && h==16)
1897 if(s->avctx->mb_cmp == FF_CMP_NSSE){
1898 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)
1899 +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)
1900 +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);
1901 }else{
1902 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)
1903 +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)
1904 +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);
1905 }
1906 else
1907 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)
1908 +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)
1909 +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);
1910}
1911
1912static int pre_estimate_motion_thread(AVCodecContext *c, void *arg){
3a84713a 1913 MpegEncContext *s= *(void**)arg;
3ada94ba
BF
1914
1915
1916 s->me.pre_pass=1;
1917 s->me.dia_size= s->avctx->pre_dia_size;
1918 s->first_slice_line=1;
1919 for(s->mb_y= s->end_mb_y-1; s->mb_y >= s->start_mb_y; s->mb_y--) {
1920 for(s->mb_x=s->mb_width-1; s->mb_x >=0 ;s->mb_x--) {
1921 ff_pre_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1922 }
1923 s->first_slice_line=0;
1924 }
1925
1926 s->me.pre_pass=0;
1927
1928 return 0;
1929}
1930
1931static int estimate_motion_thread(AVCodecContext *c, void *arg){
3a84713a 1932 MpegEncContext *s= *(void**)arg;
3ada94ba
BF
1933
1934 ff_check_alignment();
1935
1936 s->me.dia_size= s->avctx->dia_size;
1937 s->first_slice_line=1;
1938 for(s->mb_y= s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
1939 s->mb_x=0; //for block init below
1940 ff_init_block_index(s);
1941 for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {
1942 s->block_index[0]+=2;
1943 s->block_index[1]+=2;
1944 s->block_index[2]+=2;
1945 s->block_index[3]+=2;
1946
1947 /* compute motion vector & mb_type and store in context */
9701840b 1948 if(s->pict_type==FF_B_TYPE)
3ada94ba
BF
1949 ff_estimate_b_frame_motion(s, s->mb_x, s->mb_y);
1950 else
1951 ff_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1952 }
1953 s->first_slice_line=0;
1954 }
1955 return 0;
1956}
1957
1958static int mb_var_thread(AVCodecContext *c, void *arg){
3a84713a 1959 MpegEncContext *s= *(void**)arg;
3ada94ba
BF
1960 int mb_x, mb_y;
1961
1962 ff_check_alignment();
1963
1964 for(mb_y=s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
1965 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
1966 int xx = mb_x * 16;
1967 int yy = mb_y * 16;
1968 uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
1969 int varc;
1970 int sum = s->dsp.pix_sum(pix, s->linesize);
1971
1972 varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
1973
1974 s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
1975 s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
1976 s->me.mb_var_sum_temp += varc;
1977 }
1978 }
1979 return 0;
1980}
1981
1982static void write_slice_end(MpegEncContext *s){
49fb20cb 1983 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4){
3ada94ba
BF
1984 if(s->partitioned_frame){
1985 ff_mpeg4_merge_partitions(s);
1986 }
1987
1988 ff_mpeg4_stuffing(&s->pb);
49fb20cb 1989 }else if(CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG){
3ada94ba
BF
1990 ff_mjpeg_encode_stuffing(&s->pb);
1991 }
1992
1993 align_put_bits(&s->pb);
1994 flush_put_bits(&s->pb);
1995
1996 if((s->flags&CODEC_FLAG_PASS1) && !s->partitioned_frame)
1997 s->misc_bits+= get_bits_diff(s);
1998}
1999
2000static int encode_thread(AVCodecContext *c, void *arg){
3a84713a 2001 MpegEncContext *s= *(void**)arg;
3ada94ba 2002 int mb_x, mb_y, pdif = 0;
ec7e2582 2003 int chr_h= 16>>s->chroma_y_shift;
3ada94ba
BF
2004 int i, j;
2005 MpegEncContext best_s, backup_s;
2006 uint8_t bit_buf[2][MAX_MB_BYTES];
2007 uint8_t bit_buf2[2][MAX_MB_BYTES];
2008 uint8_t bit_buf_tex[2][MAX_MB_BYTES];
2009 PutBitContext pb[2], pb2[2], tex_pb[2];
2010//printf("%d->%d\n", s->resync_mb_y, s->end_mb_y);
2011
2012 ff_check_alignment();
2013
2014 for(i=0; i<2; i++){
2015 init_put_bits(&pb [i], bit_buf [i], MAX_MB_BYTES);
2016 init_put_bits(&pb2 [i], bit_buf2 [i], MAX_MB_BYTES);
2017 init_put_bits(&tex_pb[i], bit_buf_tex[i], MAX_MB_BYTES);
2018 }
2019
2020 s->last_bits= put_bits_count(&s->pb);
2021 s->mv_bits=0;
2022 s->misc_bits=0;
2023 s->i_tex_bits=0;
2024 s->p_tex_bits=0;
2025 s->i_count=0;
2026 s->f_count=0;
2027 s->b_count=0;
2028 s->skip_count=0;
2029
2030 for(i=0; i<3; i++){
2031 /* init last dc values */
2032 /* note: quant matrix value (8) is implied here */
2033 s->last_dc[i] = 128 << s->intra_dc_precision;
2034
2035 s->current_picture.error[i] = 0;
2036 }
2037 s->mb_skip_run = 0;
2038 memset(s->last_mv, 0, sizeof(s->last_mv));
2039
2040 s->last_mv_dir = 0;
2041
2042 switch(s->codec_id){
2043 case CODEC_ID_H263:
2044 case CODEC_ID_H263P:
2045 case CODEC_ID_FLV1:
0bd48530 2046 if (CONFIG_H263_ENCODER)
674eeb5f 2047 s->gob_index = ff_h263_get_gob_height(s);
3ada94ba
BF
2048 break;
2049 case CODEC_ID_MPEG4:
49fb20cb 2050 if(CONFIG_MPEG4_ENCODER && s->partitioned_frame)
3ada94ba
BF
2051 ff_mpeg4_init_partitions(s);
2052 break;
2053 }
2054
2055 s->resync_mb_x=0;
2056 s->resync_mb_y=0;
2057 s->first_slice_line = 1;
2058 s->ptr_lastgob = s->pb.buf;
2059 for(mb_y= s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2060// printf("row %d at %X\n", s->mb_y, (int)s);
2061 s->mb_x=0;
2062 s->mb_y= mb_y;
2063
2064 ff_set_qscale(s, s->qscale);
2065 ff_init_block_index(s);
2066
2067 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2068 int xy= mb_y*s->mb_stride + mb_x; // removed const, H261 needs to adjust this
2069 int mb_type= s->mb_type[xy];
2070// int d;
2071 int dmin= INT_MAX;
2072 int dir;
2073
2074 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < MAX_MB_BYTES){
2075 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2076 return -1;
2077 }
2078 if(s->data_partitioning){
2079 if( s->pb2 .buf_end - s->pb2 .buf - (put_bits_count(&s-> pb2)>>3) < MAX_MB_BYTES
2080 || s->tex_pb.buf_end - s->tex_pb.buf - (put_bits_count(&s->tex_pb )>>3) < MAX_MB_BYTES){
2081 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2082 return -1;
2083 }
2084 }
2085
2086 s->mb_x = mb_x;
2087 s->mb_y = mb_y; // moved into loop, can get changed by H.261
2088 ff_update_block_index(s);
2089
49fb20cb 2090 if(CONFIG_H261_ENCODER && s->codec_id == CODEC_ID_H261){
3ada94ba
BF
2091 ff_h261_reorder_mb_index(s);
2092 xy= s->mb_y*s->mb_stride + s->mb_x;
2093 mb_type= s->mb_type[xy];
2094 }
2095
2096 /* write gob / video packet header */
2097 if(s->rtp_mode){
2098 int current_packet_size, is_gob_start;
2099
2100 current_packet_size= ((put_bits_count(&s->pb)+7)>>3) - (s->ptr_lastgob - s->pb.buf);
2101
2102 is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0;
2103
2104 if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1;
2105
2106 switch(s->codec_id){
2107 case CODEC_ID_H263:
2108 case CODEC_ID_H263P:
2109 if(!s->h263_slice_structured)
2110 if(s->mb_x || s->mb_y%s->gob_index) is_gob_start=0;
2111 break;
2112 case CODEC_ID_MPEG2VIDEO:
2113 if(s->mb_x==0 && s->mb_y!=0) is_gob_start=1;
2114 case CODEC_ID_MPEG1VIDEO:
2115 if(s->mb_skip_run) is_gob_start=0;
2116 break;
2117 }
2118
2119 if(is_gob_start){
2120 if(s->start_mb_y != mb_y || mb_x!=0){
2121 write_slice_end(s);
2122
49fb20cb 2123 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){
3ada94ba
BF
2124 ff_mpeg4_init_partitions(s);
2125 }
2126 }
2127
2128 assert((put_bits_count(&s->pb)&7) == 0);
fb53b4a0 2129 current_packet_size= put_bits_ptr(&s->pb) - s->ptr_lastgob;
3ada94ba
BF
2130
2131 if(s->avctx->error_rate && s->resync_mb_x + s->resync_mb_y > 0){
2132 int r= put_bits_count(&s->pb)/8 + s->picture_number + 16 + s->mb_x + s->mb_y;
2133 int d= 100 / s->avctx->error_rate;
2134 if(r % d == 0){
2135 current_packet_size=0;
2136#ifndef ALT_BITSTREAM_WRITER
2137 s->pb.buf_ptr= s->ptr_lastgob;
2138#endif
fb53b4a0 2139 assert(put_bits_ptr(&s->pb) == s->ptr_lastgob);
3ada94ba
BF
2140 }
2141 }
2142
2143 if (s->avctx->rtp_callback){
2144 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width + mb_x - s->resync_mb_x;
2145 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, current_packet_size, number_mb);
2146 }
2147
2148 switch(s->codec_id){
2149 case CODEC_ID_MPEG4:
49fb20cb 2150 if (CONFIG_MPEG4_ENCODER) {
674eeb5f
AJ
2151 ff_mpeg4_encode_video_packet_header(s);
2152 ff_mpeg4_clean_buffers(s);
eb75a698 2153 }
3ada94ba
BF
2154 break;
2155 case CODEC_ID_MPEG1VIDEO:
2156 case CODEC_ID_MPEG2VIDEO:
49fb20cb 2157 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) {
56be950a
AJ
2158 ff_mpeg1_encode_slice_header(s);
2159 ff_mpeg1_clean_buffers(s);
a6bc5731 2160 }
3ada94ba
BF
2161 break;
2162 case CODEC_ID_H263:
2163 case CODEC_ID_H263P:
965424da 2164 if (CONFIG_H263_ENCODER)
674eeb5f 2165 h263_encode_gob_header(s, mb_y);
3ada94ba
BF
2166 break;
2167 }
2168
2169 if(s->flags&CODEC_FLAG_PASS1){
2170 int bits= put_bits_count(&s->pb);
2171 s->misc_bits+= bits - s->last_bits;
2172 s->last_bits= bits;
2173 }
2174
2175 s->ptr_lastgob += current_packet_size;
2176 s->first_slice_line=1;
2177 s->resync_mb_x=mb_x;
2178 s->resync_mb_y=mb_y;
2179 }
2180 }
2181
2182 if( (s->resync_mb_x == s->mb_x)
2183 && s->resync_mb_y+1 == s->mb_y){
2184 s->first_slice_line=0;
2185 }
2186
2187 s->mb_skipped=0;
2188 s->dquant=0; //only for QP_RD
2189
2190 if(mb_type & (mb_type-1) || (s->flags & CODEC_FLAG_QP_RD)){ // more than 1 MB type possible or CODEC_FLAG_QP_RD
2191 int next_block=0;
2192 int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
2193
2194 copy_context_before_encode(&backup_s, s, -1);
2195 backup_s.pb= s->pb;
2196 best_s.data_partitioning= s->data_partitioning;
2197 best_s.partitioned_frame= s->partitioned_frame;
2198 if(s->data_partitioning){
2199 backup_s.pb2= s->pb2;
2200 backup_s.tex_pb= s->tex_pb;
2201 }
2202
2203 if(mb_type&CANDIDATE_MB_TYPE_INTER){
2204 s->mv_dir = MV_DIR_FORWARD;
2205 s->mv_type = MV_TYPE_16X16;
2206 s->mb_intra= 0;
2207 s->mv[0][0][0] = s->p_mv_table[xy][0];
2208 s->mv[0][0][1] = s->p_mv_table[xy][1];
2209 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER, pb, pb2, tex_pb,
2210 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2211 }
2212 if(mb_type&CANDIDATE_MB_TYPE_INTER_I){
2213 s->mv_dir = MV_DIR_FORWARD;
2214 s->mv_type = MV_TYPE_FIELD;
2215 s->mb_intra= 0;
2216 for(i=0; i<2; i++){
2217 j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2218 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2219 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2220 }
2221 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER_I, pb, pb2, tex_pb,
2222 &dmin, &next_block, 0, 0);
2223 }
2224 if(mb_type&CANDIDATE_MB_TYPE_SKIPPED){
2225 s->mv_dir = MV_DIR_FORWARD;
2226 s->mv_type = MV_TYPE_16X16;
2227 s->mb_intra= 0;
2228 s->mv[0][0][0] = 0;
2229 s->mv[0][0][1] = 0;
2230 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_SKIPPED, pb, pb2, tex_pb,
2231 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2232 }
2233 if(mb_type&CANDIDATE_MB_TYPE_INTER4V){
2234 s->mv_dir = MV_DIR_FORWARD;
2235 s->mv_type = MV_TYPE_8X8;
2236 s->mb_intra= 0;
2237 for(i=0; i<4; i++){
2238 s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2239 s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2240 }
2241 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER4V, pb, pb2, tex_pb,
2242 &dmin, &next_block, 0, 0);
2243 }
2244 if(mb_type&CANDIDATE_MB_TYPE_FORWARD){
2245 s->mv_dir = MV_DIR_FORWARD;
2246 s->mv_type = MV_TYPE_16X16;
2247 s->mb_intra= 0;
2248 s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2249 s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2250 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD, pb, pb2, tex_pb,
2251 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2252 }
2253 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD){
2254 s->mv_dir = MV_DIR_BACKWARD;
2255 s->mv_type = MV_TYPE_16X16;
2256 s->mb_intra= 0;
2257 s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2258 s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2259 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD, pb, pb2, tex_pb,
2260 &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
2261 }
2262 if(mb_type&CANDIDATE_MB_TYPE_BIDIR){
2263 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2264 s->mv_type = MV_TYPE_16X16;
2265 s->mb_intra= 0;
2266 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2267 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2268 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2269 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2270 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb,
2271 &dmin, &next_block, 0, 0);
2272 }
2273 if(mb_type&CANDIDATE_MB_TYPE_FORWARD_I){
2274 s->mv_dir = MV_DIR_FORWARD;
2275 s->mv_type = MV_TYPE_FIELD;
2276 s->mb_intra= 0;
2277 for(i=0; i<2; i++){
2278 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2279 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2280 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2281 }
2282 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD_I, pb, pb2, tex_pb,
2283 &dmin, &next_block, 0, 0);
2284 }
2285 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD_I){
2286 s->mv_dir = MV_DIR_BACKWARD;
2287 s->mv_type = MV_TYPE_FIELD;
2288 s->mb_intra= 0;
2289 for(i=0; i<2; i++){
2290 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2291 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2292 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2293 }
2294 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD_I, pb, pb2, tex_pb,
2295 &dmin, &next_block, 0, 0);
2296 }
2297 if(mb_type&CANDIDATE_MB_TYPE_BIDIR_I){
2298 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2299 s->mv_type = MV_TYPE_FIELD;
2300 s->mb_intra= 0;
2301 for(dir=0; dir<2; dir++){
2302 for(i=0; i<2; i++){
2303 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2304 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2305 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2306 }
2307 }
2308 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR_I, pb, pb2, tex_pb,
2309 &dmin, &next_block, 0, 0);
2310 }
2311 if(mb_type&CANDIDATE_MB_TYPE_INTRA){
2312 s->mv_dir = 0;
2313 s->mv_type = MV_TYPE_16X16;
2314 s->mb_intra= 1;
2315 s->mv[0][0][0] = 0;
2316 s->mv[0][0][1] = 0;
2317 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTRA, pb, pb2, tex_pb,
2318 &dmin, &next_block, 0, 0);
2319 if(s->h263_pred || s->h263_aic){
2320 if(best_s.mb_intra)
2321 s->mbintra_table[mb_x + mb_y*s->mb_stride]=1;
2322 else
2323 ff_clean_intra_table_entries(s); //old mode?
2324 }
2325 }
2326
2327 if((s->flags & CODEC_FLAG_QP_RD) && dmin < INT_MAX){
2328 if(best_s.mv_type==MV_TYPE_16X16){ //FIXME move 4mv after QPRD
2329 const int last_qp= backup_s.qscale;
2330 int qpi, qp, dc[6];
2331 DCTELEM ac[6][16];
2332 const int mvdir= (best_s.mv_dir&MV_DIR_BACKWARD) ? 1 : 0;
2333 static const int dquant_tab[4]={-1,1,-2,2};
2334
2335 assert(backup_s.dquant == 0);
2336
2337 //FIXME intra
2338 s->mv_dir= best_s.mv_dir;
2339 s->mv_type = MV_TYPE_16X16;
2340 s->mb_intra= best_s.mb_intra;
2341 s->mv[0][0][0] = best_s.mv[0][0][0];
2342 s->mv[0][0][1] = best_s.mv[0][0][1];
2343 s->mv[1][0][0] = best_s.mv[1][0][0];
2344 s->mv[1][0][1] = best_s.mv[1][0][1];
2345
9701840b 2346 qpi = s->pict_type == FF_B_TYPE ? 2 : 0;
3ada94ba
BF
2347 for(; qpi<4; qpi++){
2348 int dquant= dquant_tab[qpi];
2349 qp= last_qp + dquant;
2350 if(qp < s->avctx->qmin || qp > s->avctx->qmax)
2351 continue;
2352 backup_s.dquant= dquant;
2353 if(s->mb_intra && s->dc_val[0]){
2354 for(i=0; i<6; i++){
2355 dc[i]= s->dc_val[0][ s->block_index[i] ];
2356 memcpy(ac[i], s->ac_val[0][s->block_index[i]], sizeof(DCTELEM)*16);
2357 }
2358 }
2359
2360 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2361 &dmin, &next_block, s->mv[mvdir][0][0], s->mv[mvdir][0][1]);
2362 if(best_s.qscale != qp){
2363 if(s->mb_intra && s->dc_val[0]){
2364 for(i=0; i<6; i++){
2365 s->dc_val[0][ s->block_index[i] ]= dc[i];
2366 memcpy(s->ac_val[0][s->block_index[i]], ac[i], sizeof(DCTELEM)*16);
2367 }
2368 }
2369 }
2370 }
2371 }
2372 }
49fb20cb 2373 if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT){
3ada94ba
BF
2374 int mx= s->b_direct_mv_table[xy][0];
2375 int my= s->b_direct_mv_table[xy][1];
2376
2377 backup_s.dquant = 0;
2378 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2379 s->mb_intra= 0;
2380 ff_mpeg4_set_direct_mv(s, mx, my);
2381 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2382 &dmin, &next_block, mx, my);
2383 }
49fb20cb 2384 if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT0){
3ada94ba
BF
2385 backup_s.dquant = 0;
2386 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2387 s->mb_intra= 0;
2388 ff_mpeg4_set_direct_mv(s, 0, 0);
2389 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2390 &dmin, &next_block, 0, 0);
2391 }
2392 if(!best_s.mb_intra && s->flags2&CODEC_FLAG2_SKIP_RD){
2393 int coded=0;
2394 for(i=0; i<6; i++)
2395 coded |= s->block_last_index[i];
2396 if(coded){
2397 int mx,my;
2398 memcpy(s->mv, best_s.mv, sizeof(s->mv));
49fb20cb 2399 if(CONFIG_MPEG4_ENCODER && best_s.mv_dir & MV_DIRECT){
3ada94ba
BF
2400 mx=my=0; //FIXME find the one we actually used
2401 ff_mpeg4_set_direct_mv(s, mx, my);
2402 }else if(best_s.mv_dir&MV_DIR_BACKWARD){
2403 mx= s->mv[1][0][0];
2404 my= s->mv[1][0][1];
2405 }else{
2406 mx= s->mv[0][0][0];
2407 my= s->mv[0][0][1];
2408 }
2409
2410 s->mv_dir= best_s.mv_dir;
2411 s->mv_type = best_s.mv_type;
2412 s->mb_intra= 0;
2413/* s->mv[0][0][0] = best_s.mv[0][0][0];
2414 s->mv[0][0][1] = best_s.mv[0][0][1];
2415 s->mv[1][0][0] = best_s.mv[1][0][0];
2416 s->mv[1][0][1] = best_s.mv[1][0][1];*/
2417 backup_s.dquant= 0;
2418 s->skipdct=1;
2419 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2420 &dmin, &next_block, mx, my);
2421 s->skipdct=0;
2422 }
2423 }
2424
2425 s->current_picture.qscale_table[xy]= best_s.qscale;
2426
2427 copy_context_after_encode(s, &best_s, -1);
2428
2429 pb_bits_count= put_bits_count(&s->pb);
2430 flush_put_bits(&s->pb);
2431 ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
2432 s->pb= backup_s.pb;
2433
2434 if(s->data_partitioning){
2435 pb2_bits_count= put_bits_count(&s->pb2);
2436 flush_put_bits(&s->pb2);
2437 ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
2438 s->pb2= backup_s.pb2;
2439
2440 tex_pb_bits_count= put_bits_count(&s->tex_pb);
2441 flush_put_bits(&s->tex_pb);
2442 ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
2443 s->tex_pb= backup_s.tex_pb;
2444 }
2445 s->last_bits= put_bits_count(&s->pb);
2446
49fb20cb 2447 if (CONFIG_ANY_H263_ENCODER &&
9701840b 2448 s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
3ada94ba
BF
2449 ff_h263_update_motion_val(s);
2450
2451 if(next_block==0){ //FIXME 16 vs linesize16
2452 s->dsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad , s->linesize ,16);
2453 s->dsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize , s->uvlinesize, 8);
2454 s->dsp.put_pixels_tab[1][0](s->dest[2], s->rd_scratchpad + 16*s->linesize + 8, s->uvlinesize, 8);
2455 }
2456
2457 if(s->avctx->mb_decision == FF_MB_DECISION_BITS)
2458 MPV_decode_mb(s, s->block);
2459 } else {
2460 int motion_x = 0, motion_y = 0;
2461 s->mv_type=MV_TYPE_16X16;
2462 // only one MB-Type possible
2463
2464 switch(mb_type){
2465 case CANDIDATE_MB_TYPE_INTRA:
2466 s->mv_dir = 0;
2467 s->mb_intra= 1;
2468 motion_x= s->mv[0][0][0] = 0;
2469 motion_y= s->mv[0][0][1] = 0;
2470 break;
2471 case CANDIDATE_MB_TYPE_INTER:
2472 s->mv_dir = MV_DIR_FORWARD;
2473 s->mb_intra= 0;
2474 motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
2475 motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
2476 break;
2477 case CANDIDATE_MB_TYPE_INTER_I:
2478 s->mv_dir = MV_DIR_FORWARD;
2479 s->mv_type = MV_TYPE_FIELD;
2480 s->mb_intra= 0;
2481 for(i=0; i<2; i++){
2482 j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2483 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2484 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2485 }
2486 break;
2487 case CANDIDATE_MB_TYPE_INTER4V:
2488 s->mv_dir = MV_DIR_FORWARD;
2489 s->mv_type = MV_TYPE_8X8;
2490 s->mb_intra= 0;
2491 for(i=0; i<4; i++){
2492 s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2493 s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2494 }
2495 break;
2496 case CANDIDATE_MB_TYPE_DIRECT:
49fb20cb 2497 if (CONFIG_MPEG4_ENCODER) {
674eeb5f
AJ
2498 s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2499 s->mb_intra= 0;
2500 motion_x=s->b_direct_mv_table[xy][0];
2501 motion_y=s->b_direct_mv_table[xy][1];
2502 ff_mpeg4_set_direct_mv(s, motion_x, motion_y);
eb75a698 2503 }
3ada94ba
BF
2504 break;
2505 case CANDIDATE_MB_TYPE_DIRECT0:
49fb20cb 2506 if (CONFIG_MPEG4_ENCODER) {
674eeb5f
AJ
2507 s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2508 s->mb_intra= 0;
2509 ff_mpeg4_set_direct_mv(s, 0, 0);
eb75a698 2510 }
3ada94ba
BF
2511 break;
2512 case CANDIDATE_MB_TYPE_BIDIR:
2513 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2514 s->mb_intra= 0;
2515 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2516 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2517 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2518 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2519 break;
2520 case CANDIDATE_MB_TYPE_BACKWARD:
2521 s->mv_dir = MV_DIR_BACKWARD;
2522 s->mb_intra= 0;
2523 motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2524 motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2525 break;
2526 case CANDIDATE_MB_TYPE_FORWARD:
2527 s->mv_dir = MV_DIR_FORWARD;
2528 s->mb_intra= 0;
2529 motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2530 motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2531// printf(" %d %d ", motion_x, motion_y);
2532 break;
2533 case CANDIDATE_MB_TYPE_FORWARD_I:
2534 s->mv_dir = MV_DIR_FORWARD;
2535 s->mv_type = MV_TYPE_FIELD;
2536 s->mb_intra= 0;
2537 for(i=0; i<2; i++){
2538 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2539 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2540 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2541 }
2542 break;
2543 case CANDIDATE_MB_TYPE_BACKWARD_I:
2544 s->mv_dir = MV_DIR_BACKWARD;
2545 s->mv_type = MV_TYPE_FIELD;
2546 s->mb_intra= 0;
2547 for(i=0; i<2; i++){
2548 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2549 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2550 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2551 }
2552 break;
2553 case CANDIDATE_MB_TYPE_BIDIR_I:
2554 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2555 s->mv_type = MV_TYPE_FIELD;
2556 s->mb_intra= 0;
2557 for(dir=0; dir<2; dir++){
2558 for(i=0; i<2; i++){
2559 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2560 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2561 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2562 }
2563 }
2564 break;
2565 default:
2566 av_log(s->avctx, AV_LOG_ERROR, "illegal MB type\n");
2567 }
2568
2569 encode_mb(s, motion_x, motion_y);
2570
2571 // RAL: Update last macroblock type
2572 s->last_mv_dir = s->mv_dir;
2573
49fb20cb 2574 if (CONFIG_ANY_H263_ENCODER &&
9701840b 2575 s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
3ada94ba
BF
2576 ff_h263_update_motion_val(s);
2577
2578 MPV_decode_mb(s, s->block);
2579 }
2580
2581 /* clean the MV table in IPS frames for direct mode in B frames */
2582 if(s->mb_intra /* && I,P,S_TYPE */){
2583 s->p_mv_table[xy][0]=0;
2584 s->p_mv_table[xy][1]=0;
2585 }
2586
2587 if(s->flags&CODEC_FLAG_PSNR){
2588 int w= 16;
2589 int h= 16;
2590
2591 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
2592 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
2593
2594 s->current_picture.error[0] += sse(
2595 s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16,
2596 s->dest[0], w, h, s->linesize);
2597 s->current_picture.error[1] += sse(
ec7e2582
BC
2598 s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*chr_h,
2599 s->dest[1], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
3ada94ba 2600 s->current_picture.error[2] += sse(
ec7e2582
BC
2601 s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*chr_h,
2602 s->dest[2], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
3ada94ba
BF
2603 }
2604 if(s->loop_filter){
49fb20cb 2605 if(CONFIG_ANY_H263_ENCODER && s->out_format == FMT_H263)
3ada94ba
BF
2606 ff_h263_loop_filter(s);
2607 }
2608//printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, put_bits_count(&s->pb));
2609 }
2610 }
2611
2612 //not beautiful here but we must write it before flushing so it has to be here
49fb20cb 2613 if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == FF_I_TYPE)
3ada94ba
BF
2614 msmpeg4_encode_ext_header(s);
2615
2616 write_slice_end(s);
2617
2618 /* Send the last GOB if RTP */
2619 if (s->avctx->rtp_callback) {
2620 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width - s->resync_mb_x;
fb53b4a0 2621 pdif = put_bits_ptr(&s->pb) - s->ptr_lastgob;
3ada94ba
BF
2622 /* Call the RTP callback to send the last GOB */
2623 emms_c();
2624 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, pdif, number_mb);
2625 }
2626
2627 return 0;
2628}
2629
2630#define MERGE(field) dst->field += src->field; src->field=0
2631static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src){
2632 MERGE(me.scene_change_score);
2633 MERGE(me.mc_mb_var_sum_temp);
2634 MERGE(me.mb_var_sum_temp);
2635}
2636
2637static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src){
2638 int i;
2639
2640 MERGE(dct_count[0]); //note, the other dct vars are not part of the context
2641 MERGE(dct_count[1]);
2642 MERGE(mv_bits);
2643 MERGE(i_tex_bits);
2644 MERGE(p_tex_bits);
2645 MERGE(i_count);
2646 MERGE(f_count);
2647 MERGE(b_count);
2648 MERGE(skip_count);
2649 MERGE(misc_bits);
2650 MERGE(error_count);
2651 MERGE(padding_bug_score);
2652 MERGE(current_picture.error[0]);
2653 MERGE(current_picture.error[1]);
2654 MERGE(current_picture.error[2]);
2655
2656 if(dst->avctx->noise_reduction){
2657 for(i=0; i<64; i++){
2658 MERGE(dct_error_sum[0][i]);
2659 MERGE(dct_error_sum[1][i]);
2660 }
2661 }
2662
2663 assert(put_bits_count(&src->pb) % 8 ==0);
2664 assert(put_bits_count(&dst->pb) % 8 ==0);
2665 ff_copy_bits(&dst->pb, src->pb.buf, put_bits_count(&src->pb));
2666 flush_put_bits(&dst->pb);
2667}
2668
2669static int estimate_qp(MpegEncContext *s, int dry_run){
2670 if (s->next_lambda){
2671 s->current_picture_ptr->quality=
2672 s->current_picture.quality = s->next_lambda;
2673 if(!dry_run) s->next_lambda= 0;
2674 } else if (!s->fixed_qscale) {
2675 s->current_picture_ptr->quality=
2676 s->current_picture.quality = ff_rate_estimate_qscale(s, dry_run);
2677 if (s->current_picture.quality < 0)
2678 return -1;
2679 }
2680
2681 if(s->adaptive_quant){
2682 switch(s->codec_id){
2683 case CODEC_ID_MPEG4:
49fb20cb 2684 if (CONFIG_MPEG4_ENCODER)
674eeb5f 2685 ff_clean_mpeg4_qscales(s);
3ada94ba
BF
2686 break;
2687 case CODEC_ID_H263:
2688 case CODEC_ID_H263P:
2689 case CODEC_ID_FLV1:
0bd48530 2690 if (CONFIG_H263_ENCODER)
674eeb5f 2691 ff_clean_h263_qscales(s);
3ada94ba
BF
2692 break;
2693 }
2694
2695 s->lambda= s->lambda_table[0];
2696 //FIXME broken
2697 }else
2698 s->lambda= s->current_picture.quality;
2699//printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality);
2700 update_qscale(s);
2701 return 0;
2702}
2703
7da31a80
AJ
2704/* must be called before writing the header */
2705static void set_frame_distances(MpegEncContext * s){
2706 assert(s->current_picture_ptr->pts != AV_NOPTS_VALUE);
2707 s->time= s->current_picture_ptr->pts*s->avctx->time_base.num;
2708
9701840b 2709 if(s->pict_type==FF_B_TYPE){
7da31a80
AJ
2710 s->pb_time= s->pp_time - (s->last_non_b_time - s->time);
2711 assert(s->pb_time > 0 && s->pb_time < s->pp_time);
2712 }else{
2713 s->pp_time= s->time - s->last_non_b_time;
2714 s->last_non_b_time= s->time;
2715 assert(s->picture_number==0 || s->pp_time > 0);
2716 }
2717}
2718
3ada94ba
BF
2719static int encode_picture(MpegEncContext *s, int picture_number)
2720{
2721 int i;
2722 int bits;
2723
2724 s->picture_number = picture_number;
2725
2726 /* Reset the average MB variance */
2727 s->me.mb_var_sum_temp =
2728 s->me.mc_mb_var_sum_temp = 0;
2729
2730 /* we need to initialize some time vars before we can encode b-frames */
2731 // RAL: Condition added for MPEG1VIDEO
2732 if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->h263_msmpeg4))
7da31a80 2733 set_frame_distances(s);
49fb20cb 2734 if(CONFIG_MPEG4_ENCODER && s->codec_id == CODEC_ID_MPEG4)
7da31a80 2735 ff_set_mpeg4_time(s);
3ada94ba
BF
2736
2737 s->me.scene_change_score=0;
2738
e6dba5df 2739// s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME rate distortion
3ada94ba 2740
9701840b 2741 if(s->pict_type==FF_I_TYPE){
3ada94ba
BF
2742 if(s->msmpeg4_version >= 3) s->no_rounding=1;
2743 else s->no_rounding=0;
9701840b 2744 }else if(s->pict_type!=FF_B_TYPE){
3ada94ba
BF
2745 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
2746 s->no_rounding ^= 1;
2747 }
2748
2749 if(s->flags & CODEC_FLAG_PASS2){
2750 if (estimate_qp(s,1) < 0)
2751 return -1;
2752 ff_get_2pass_fcode(s);
2753 }else if(!(s->flags & CODEC_FLAG_QSCALE)){
9701840b 2754 if(s->pict_type==FF_B_TYPE)
3ada94ba
BF
2755 s->lambda= s->last_lambda_for[s->pict_type];
2756 else
2757 s->lambda= s->last_lambda_for[s->last_non_b_pict_type];
2758 update_qscale(s);
2759 }
2760
2761 s->mb_intra=0; //for the rate distortion & bit compare functions
2762 for(i=1; i<s->avctx->thread_count; i++){
2763 ff_update_duplicate_context(s->thread_context[i], s);
2764 }
2765
719f3702
MN
2766 if(ff_init_me(s)<0)
2767 return -1;
3ada94ba
BF
2768
2769 /* Estimate motion for every MB */
9701840b 2770 if(s->pict_type != FF_I_TYPE){
3ada94ba
BF
2771 s->lambda = (s->lambda * s->avctx->me_penalty_compensation + 128)>>8;
2772 s->lambda2= (s->lambda2* (int64_t)s->avctx->me_penalty_compensation + 128)>>8;
9701840b
AJ
2773 if(s->pict_type != FF_B_TYPE && s->avctx->me_threshold==0){
2774 if((s->avctx->pre_me && s->last_non_b_pict_type==FF_I_TYPE) || s->avctx->pre_me==2){
01418506 2775 s->avctx->execute(s->avctx, pre_estimate_motion_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
3ada94ba
BF
2776 }
2777 }
2778
01418506 2779 s->avctx->execute(s->avctx, estimate_motion_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
9701840b 2780 }else /* if(s->pict_type == FF_I_TYPE) */{
3ada94ba
BF
2781 /* I-Frame */
2782 for(i=0; i<s->mb_stride*s->mb_height; i++)
2783 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2784
2785 if(!s->fixed_qscale){
2786 /* finding spatial complexity for I-frame rate control */
01418506 2787 s->avctx->execute(s->avctx, mb_var_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
3ada94ba
BF
2788 }
2789 }
2790 for(i=1; i<s->avctx->thread_count; i++){
2791 merge_context_after_me(s, s->thread_context[i]);
2792 }
2793 s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum= s->me.mc_mb_var_sum_temp;
2794 s->current_picture. mb_var_sum= s->current_picture_ptr-> mb_var_sum= s->me. mb_var_sum_temp;
2795 emms_c();
2796
9701840b
AJ
2797 if(s->me.scene_change_score > s->avctx->scenechange_threshold && s->pict_type == FF_P_TYPE){
2798 s->pict_type= FF_I_TYPE;
3ada94ba
BF
2799 for(i=0; i<s->mb_stride*s->mb_height; i++)
2800 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2801//printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum);
2802 }
2803
2804 if(!s->umvplus){
9701840b 2805 if(s->pict_type==FF_P_TYPE || s->pict_type==FF_S_TYPE) {
3ada94ba
BF
2806 s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER);
2807
2808 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2809 int a,b;
2810 a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select
2811 b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I);
159ef4b0 2812 s->f_code= FFMAX3(s->f_code, a, b);
3ada94ba
BF
2813 }
2814
2815 ff_fix_long_p_mvs(s);
2816 ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0);
2817 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2818 int j;
2819 for(i=0; i<2; i++){
2820 for(j=0; j<2; j++)
2821 ff_fix_long_mvs(s, s->p_field_select_table[i], j,
2822 s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0);
2823 }
2824 }
2825 }
2826
9701840b 2827 if(s->pict_type==FF_B_TYPE){
3ada94ba
BF
2828 int a, b;
2829
2830 a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD);
2831 b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2832 s->f_code = FFMAX(a, b);
2833
2834 a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD);
2835 b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2836 s->b_code = FFMAX(a, b);
2837
2838 ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1);
2839 ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1);
2840 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2841 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2842 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2843 int dir, j;
2844 for(dir=0; dir<2; dir++){
2845 for(i=0; i<2; i++){
2846 for(j=0; j<2; j++){
2847 int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I)
2848 : (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I);
2849 ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j,
2850 s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1);
2851 }
2852 }
2853 }
2854 }
2855 }
2856 }
2857
2858 if (estimate_qp(s, 0) < 0)
2859 return -1;
2860
9701840b 2861 if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==FF_I_TYPE && !(s->flags & CODEC_FLAG_QSCALE))
3ada94ba
BF
2862 s->qscale= 3; //reduce clipping problems
2863
2864 if (s->out_format == FMT_MJPEG) {
2865 /* for mjpeg, we do include qscale in the matrix */
2866 s->intra_matrix[0] = ff_mpeg1_default_intra_matrix[0];
2867 for(i=1;i<64;i++){
2868 int j= s->dsp.idct_permutation[i];
2869
2870 s->intra_matrix[j] = av_clip_uint8((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
2871 }
69cea75f 2872 ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
3ada94ba
BF
2873 s->intra_matrix, s->intra_quant_bias, 8, 8, 1);
2874 s->qscale= 8;
2875 }
2876
2877 //FIXME var duplication
2878 s->current_picture_ptr->key_frame=
9701840b 2879 s->current_picture.key_frame= s->pict_type == FF_I_TYPE; //FIXME pic_ptr
3ada94ba
BF
2880 s->current_picture_ptr->pict_type=
2881 s->current_picture.pict_type= s->pict_type;
2882
2883 if(s->current_picture.key_frame)
2884 s->picture_in_gop_number=0;
2885
2886 s->last_bits= put_bits_count(&s->pb);
2887 switch(s->out_format) {
2888 case FMT_MJPEG:
49fb20cb 2889 if (CONFIG_MJPEG_ENCODER)
3ada94ba
BF
2890 ff_mjpeg_encode_picture_header(s);
2891 break;
2892 case FMT_H261:
49fb20cb 2893 if (CONFIG_H261_ENCODER)
3ada94ba
BF
2894 ff_h261_encode_picture_header(s, picture_number);
2895 break;
2896 case FMT_H263:
49fb20cb 2897 if (CONFIG_WMV2_ENCODER && s->codec_id == CODEC_ID_WMV2)
3ada94ba 2898 ff_wmv2_encode_picture_header(s, picture_number);
49fb20cb 2899 else if (CONFIG_MSMPEG4_ENCODER && s->h263_msmpeg4)
3ada94ba 2900 msmpeg4_encode_picture_header(s, picture_number);
49fb20cb 2901 else if (CONFIG_MPEG4_ENCODER && s->h263_pred)
3ada94ba 2902 mpeg4_encode_picture_header(s, picture_number);
49fb20cb 2903 else if (CONFIG_RV10_ENCODER && s->codec_id == CODEC_ID_RV10)
3ada94ba 2904 rv10_encode_picture_header(s, picture_number);
49fb20cb 2905 else if (CONFIG_RV20_ENCODER && s->codec_id == CODEC_ID_RV20)
3ada94ba 2906 rv20_encode_picture_header(s, picture_number);
49fb20cb 2907 else if (CONFIG_FLV_ENCODER && s->codec_id == CODEC_ID_FLV1)
3ada94ba 2908 ff_flv_encode_picture_header(s, picture_number);
49fb20cb 2909 else if (CONFIG_ANY_H263_ENCODER)
3ada94ba
BF
2910 h263_encode_picture_header(s, picture_number);
2911 break;
2912 case FMT_MPEG1:
49fb20cb 2913 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
56be950a 2914 mpeg1_encode_picture_header(s, picture_number);
3ada94ba
BF
2915 break;
2916 case FMT_H264:
2917 break;
2918 default:
2919 assert(0);
2920 }
2921 bits= put_bits_count(&s->pb);
2922 s->header_bits= bits - s->last_bits;
2923
2924 for(i=1; i<s->avctx->thread_count; i++){
2925 update_duplicate_context_after_me(s->thread_context[i], s);
2926 }
01418506 2927 s->avctx->execute(s->avctx, encode_thread, &s->thread_context[0], NULL, s->avctx->thread_count, sizeof(void*));
3ada94ba
BF
2928 for(i=1; i<s->avctx->thread_count; i++){
2929 merge_context_after_encode(s, s->thread_context[i]);
2930 }
2931 emms_c();
2932 return 0;
2933}
2934
2935void denoise_dct_c(MpegEncContext *s, DCTELEM *block){
2936 const int intra= s->mb_intra;
2937 int i;
2938
2939 s->dct_count[intra]++;
2940
2941 for(i=0; i<64; i++){
2942 int level= block[i];
2943
2944 if(level){
2945 if(level>0){
2946 s->dct_error_sum[intra][i] += level;
2947 level -= s->dct_offset[intra][i];
2948 if(level<0) level=0;
2949 }else{
2950 s->dct_error_sum[intra][i] -= level;
2951 level += s->dct_offset[intra][i];
2952 if(level>0) level=0;
2953 }
2954 block[i]= level;
2955 }
2956 }
2957}
2958
2959int dct_quantize_trellis_c(MpegEncContext *s,
2960 DCTELEM *block, int n,
2961 int qscale, int *overflow){
2962 const int *qmat;
2963 const uint8_t *scantable= s->intra_scantable.scantable;
2964 const uint8_t *perm_scantable= s->intra_scantable.permutated;
2965 int max=0;
2966 unsigned int threshold1, threshold2;
2967 int bias=0;
2968 int run_tab[65];
2969 int level_tab[65];
2970 int score_tab[65];
2971 int survivor[65];
2972 int survivor_count;
2973 int last_run=0;
2974 int last_level=0;
2975 int last_score= 0;
2976 int last_i;
2977 int coeff[2][64];
2978 int coeff_count[64];
2979 int qmul, qadd, start_i, last_non_zero, i, dc;
2980 const int esc_length= s->ac_esc_length;
2981 uint8_t * length;
2982 uint8_t * last_length;
2983 const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6);
2984
2985 s->dsp.fdct (block);
2986
2987 if(s->dct_error_sum)
2988 s->denoise_dct(s, block);
2989 qmul= qscale*16;
2990 qadd= ((qscale-1)|1)*8;
2991
2992 if (s->mb_intra) {
2993 int q;
2994 if (!s->h263_aic) {
2995 if (n < 4)
2996 q = s->y_dc_scale;
2997 else
2998 q = s->c_dc_scale;
2999 q = q << 3;
3000 } else{
3001 /* For AIC we skip quant/dequant of INTRADC */
3002 q = 1 << 3;
3003 qadd=0;
3004 }
3005
3006 /* note: block[0] is assumed to be positive */
3007 block[0] = (block[0] + (q >> 1)) / q;
3008 start_i = 1;
3009 last_non_zero = 0;
3010 qmat = s->q_intra_matrix[qscale];
3011 if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3012 bias= 1<<(QMAT_SHIFT-1);
3013 length = s->intra_ac_vlc_length;
3014 last_length= s->intra_ac_vlc_last_length;
3015 } else {
3016 start_i = 0;
3017 last_non_zero = -1;
3018 qmat = s->q_inter_matrix[qscale];
3019 length = s->inter_ac_vlc_length;
3020 last_length= s->inter_ac_vlc_last_length;
3021 }
3022 last_i= start_i;
3023
3024 threshold1= (1<<QMAT_SHIFT) - bias - 1;
3025 threshold2= (threshold1<<1);
3026
3027 for(i=63; i>=start_i; i--) {
3028 const int j = scantable[i];
3029 int level = block[j] * qmat[j];
3030
3031 if(((unsigned)(level+threshold1))>threshold2){
3032 last_non_zero = i;
3033 break;
3034 }
3035 }
3036
3037 for(i=start_i; i<=last_non_zero; i++) {
3038 const int j = scantable[i];
3039 int level = block[j] * qmat[j];
3040
3041// if( bias+level >= (1<<(QMAT_SHIFT - 3))
3042// || bias-level >= (1<<(QMAT_SHIFT - 3))){
3043 if(((unsigned)(level+threshold1))>threshold2){
3044 if(level>0){
3045 level= (bias + level)>>QMAT_SHIFT;
3046 coeff[0][i]= level;
3047 coeff[1][i]= level-1;
3048// coeff[2][k]= level-2;
3049 }else{
3050 level= (bias - level)>>QMAT_SHIFT;
3051 coeff[0][i]= -level;
3052 coeff[1][i]= -level+1;
3053// coeff[2][k]= -level+2;
3054 }
3055 coeff_count[i]= FFMIN(level, 2);
3056 assert(coeff_count[i]);
3057 max |=level;
3058 }else{
3059 coeff[0][i]= (level>>31)|1;
3060 coeff_count[i]= 1;
3061 }
3062 }
3063
3064 *overflow= s->max_qcoeff < max; //overflow might have happened
3065
3066 if(last_non_zero < start_i){
3067 memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3068 return last_non_zero;
3069 }
3070
3071 score_tab[start_i]= 0;
3072 survivor[0]= start_i;
3073 survivor_count= 1;
3074
3075 for(i=start_i; i<=last_non_zero; i++){
e6dba5df 3076 int level_index, j, zero_distortion;
b6bffc46 3077 int dct_coeff= FFABS(block[ scantable[i] ]);
3ada94ba 3078 int best_score=256*256*256*120;
b6bffc46
MN
3079
3080 if ( s->dsp.fdct == fdct_ifast
3081#ifndef FAAN_POSTSCALE
3082 || s->dsp.fdct == ff_faandct
3083#endif
3084 )
939e4e3a 3085 dct_coeff= (dct_coeff*ff_inv_aanscales[ scantable[i] ]) >> 12;
e6dba5df 3086 zero_distortion= dct_coeff*dct_coeff;
b6bffc46 3087
3ada94ba 3088 for(level_index=0; level_index < coeff_count[i]; level_index++){
e6dba5df 3089 int distortion;
3ada94ba
BF
3090 int level= coeff[level_index][i];
3091 const int alevel= FFABS(level);
3092 int unquant_coeff;
3093
3094 assert(level);
3095
3096 if(s->out_format == FMT_H263){
3097 unquant_coeff= alevel*qmul + qadd;
3098 }else{ //MPEG1
3099 j= s->dsp.idct_permutation[ scantable[i] ]; //FIXME optimize
3100 if(s->mb_intra){
3101 unquant_coeff = (int)( alevel * qscale * s->intra_matrix[j]) >> 3;
3102 unquant_coeff = (unquant_coeff - 1) | 1;
3103 }else{
3104 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[j])) >> 4;
3105 unquant_coeff = (unquant_coeff - 1) | 1;
3106 }
3107 unquant_coeff<<= 3;
3108 }
3109
e6dba5df 3110 distortion= (unquant_coeff - dct_coeff) * (unquant_coeff - dct_coeff) - zero_distortion;
3ada94ba
BF
3111 level+=64;
3112 if((level&(~127)) == 0){
3113 for(j=survivor_count-1; j>=0; j--){
3114 int run= i - survivor[j];
e6dba5df 3115 int score= distortion + length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3ada94ba
BF
3116 score += score_tab[i-run];
3117
3118 if(score < best_score){
3119 best_score= score;
3120 run_tab[i+1]= run;
3121 level_tab[i+1]= level-64;
3122 }
3123 }
3124
3125 if(s->out_format == FMT_H263){
3126 for(j=survivor_count-1; j>=0; j--){
3127 int run= i - survivor[j];
e6dba5df 3128 int score= distortion + last_length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3ada94ba
BF
3129 score += score_tab[i-run];
3130 if(score < last_score){
3131 last_score= score;
3132 last_run= run;
3133 last_level= level-64;
3134 last_i= i+1;
3135 }
3136 }
3137 }
3138 }else{
e6dba5df 3139 distortion += esc_length*lambda;
3ada94ba
BF
3140 for(j=survivor_count-1; j>=0; j--){
3141 int run= i - survivor[j];
e6dba5df 3142 int score= distortion + score_tab[i-run];
3ada94ba
BF
3143
3144 if(score < best_score){
3145 best_score= score;
3146 run_tab[i+1]= run;
3147 level_tab[i+1]= level-64;
3148 }
3149 }
3150
3151 if(s->out_format == FMT_H263){
3152 for(j=survivor_count-1; j>=0; j--){
3153 int run= i - survivor[j];
e6dba5df 3154 int score= distortion + score_tab[i-run];
3ada94ba
BF
3155 if(score < last_score){
3156 last_score= score;
3157 last_run= run;
3158 last_level= level-64;
3159 last_i= i+1;
3160 }
3161 }
3162 }
3163 }
3164 }
3165
3166 score_tab[i+1]= best_score;
3167
3168 //Note: there is a vlc code in mpeg4 which is 1 bit shorter then another one with a shorter run and the same level
3169 if(last_non_zero <= 27){
3170 for(; survivor_count; survivor_count--){
3171 if(score_tab[ survivor[survivor_count-1] ] <= best_score)
3172 break;
3173 }
3174 }else{
3175 for(; survivor_count; survivor_count--){
3176 if(score_tab[ survivor[survivor_count-1] ] <= best_score + lambda)
3177 break;
3178 }
3179 }
3180
3181 survivor[ survivor_count++ ]= i+1;
3182 }
3183
3184 if(s->out_format != FMT_H263){
3185 last_score= 256*256*256*120;
3186 for(i= survivor[0]; i<=last_non_zero + 1; i++){
3187 int score= score_tab[i];
3188 if(i) score += lambda*2; //FIXME exacter?
3189
3190 if(score < last_score){
3191 last_score= score;
3192 last_i= i;
3193 last_level= level_tab[i];
3194 last_run= run_tab[i];
3195 }
3196 }
3197 }
3198
3199 s->coded_score[n] = last_score;
3200
3201 dc= FFABS(block[0]);
3202 last_non_zero= last_i - 1;
3203 memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3204
3205 if(last_non_zero < start_i)
3206 return last_non_zero;
3207
3208 if(last_non_zero == 0 && start_i == 0){
3209 int best_level= 0;
3210 int best_score= dc * dc;
3211
3212 for(i=0; i<coeff_count[0]; i++){
3213 int level= coeff[i][0];
3214 int alevel= FFABS(level);
3215 int unquant_coeff, score, distortion;
3216
3217 if(s->out_format == FMT_H263){
3218 unquant_coeff= (alevel*qmul + qadd)>>3;
3219 }else{ //MPEG1
3220 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[0])) >> 4;
3221 unquant_coeff = (unquant_coeff - 1) | 1;
3222 }
3223 unquant_coeff = (unquant_coeff + 4) >> 3;
3224 unquant_coeff<<= 3 + 3;
3225
3226 distortion= (unquant_coeff - dc) * (unquant_coeff - dc);
3227 level+=64;
3228 if((level&(~127)) == 0) score= distortion + last_length[UNI_AC_ENC_INDEX(0, level)]*lambda;
3229 else score= distortion + esc_length*lambda;
3230
3231 if(score < best_score){
3232 best_score= score;
3233 best_level= level - 64;
3234 }
3235 }
3236 block[0]= best_level;
3237 s->coded_score[n] = best_score - dc*dc;
3238 if(best_level == 0) return -1;
3239 else return last_non_zero;
3240 }
3241
3242 i= last_i;
3243 assert(last_level);
3244
3245 block[ perm_scantable[last_non_zero] ]= last_level;
3246 i -= last_run + 1;
3247
3248 for(; i>start_i; i -= run_tab[i] + 1){
3249 block[ perm_scantable[i-1] ]= level_tab[i];
3250 }
3251
3252 return last_non_zero;
3253}
3254
3255//#define REFINE_STATS 1
3256static int16_t basis[64][64];
3257
3258static void build_basis(uint8_t *perm){
3259 int i, j, x, y;
3260 emms_c();
3261 for(i=0; i<8; i++){
3262 for(j=0; j<8; j++){
3263 for(y=0; y<8; y++){
3264 for(x=0; x<8; x++){
3265 double s= 0.25*(1<<BASIS_SHIFT);
3266 int index= 8*i + j;
3267 int perm_index= perm[index];
3268 if(i==0) s*= sqrt(0.5);
3269 if(j==0) s*= sqrt(0.5);
3270 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)));
3271 }
3272 }
3273 }
3274 }
3275}
3276
3277static int dct_quantize_refine(MpegEncContext *s, //FIXME breaks denoise?
3278 DCTELEM *block, int16_t *weight, DCTELEM *orig,
3279 int n, int qscale){
3280 int16_t rem[64];
3281 DECLARE_ALIGNED_16(DCTELEM, d1[64]);
3ada94ba
BF
3282 const uint8_t *scantable= s->intra_scantable.scantable;
3283 const uint8_t *perm_scantable= s->intra_scantable.permutated;
3284// unsigned int threshold1, threshold2;
3285// int bias=0;
3286 int run_tab[65];
3287 int prev_run=0;
3288 int prev_level=0;
3289 int qmul, qadd, start_i, last_non_zero, i, dc;
3290 uint8_t * length;
3291 uint8_t * last_length;
3292 int lambda;
3293 int rle_index, run, q = 1, sum; //q is only used when s->mb_intra is true
3294#ifdef REFINE_STATS
3295static int count=0;
3296static int after_last=0;
3297static int to_zero=0;
3298static int from_zero=0;
3299static int raise=0;
3300static int lower=0;
3301static int messed_sign=0;
3302#endif
3303
3304 if(basis[0][0] == 0)
3305 build_basis(s->dsp.idct_permutation);
3306
3307 qmul= qscale*2;
3308 qadd= (qscale-1)|1;
3309 if (s->mb_intra) {
3310 if (!s->h263_aic) {
3311 if (n < 4)
3312 q = s->y_dc_scale;
3313 else
3314 q = s->c_dc_scale;
3315 } else{
3316 /* For AIC we skip quant/dequant of INTRADC */
3317 q = 1;
3318 qadd=0;
3319 }
3320 q <<= RECON_SHIFT-3;
3321 /* note: block[0] is assumed to be positive */
3322 dc= block[0]*q;
3323// block[0] = (block[0] + (q >> 1)) / q;
3324 start_i = 1;
3ada94ba
BF
3325// if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3326// bias= 1<<(QMAT_SHIFT-1);
3327 length = s->intra_ac_vlc_length;
3328 last_length= s->intra_ac_vlc_last_length;
3329 } else {
3330 dc= 0;
3331 start_i = 0;
3ada94ba
BF
3332 length = s->inter_ac_vlc_length;
3333 last_length= s->inter_ac_vlc_last_length;
3334 }
3335 last_non_zero = s->block_last_index[n];
3336
3337#ifdef REFINE_STATS
3338{START_TIMER
3339#endif
3340 dc += (1<<(RECON_SHIFT-1));
3341 for(i=0; i<64; i++){
3342 rem[i]= dc - (orig[i]<<RECON_SHIFT); //FIXME use orig dirrectly instead of copying to rem[]
3343 }
3344#ifdef REFINE_STATS
3345STOP_TIMER("memset rem[]")}
3346#endif
3347 sum=0;
3348 for(i=0; i<64; i++){
3349 int one= 36;
3350 int qns=4;
3351 int w;
3352
3353 w= FFABS(weight[i]) + qns*one;
3354 w= 15 + (48*qns*one + w/2)/w; // 16 .. 63
3355
3356 weight[i] = w;
3357// w=weight[i] = (63*qns + (w/2)) / w;
3358
3359 assert(w>0);
3360 assert(w<(1<<6));
3361 sum += w*w;
3362 }
3363 lambda= sum*(uint64_t)s->lambda2 >> (FF_LAMBDA_SHIFT - 6 + 6 + 6 + 6);
3364#ifdef REFINE_STATS
3365{START_TIMER
3366#endif
3367 run=0;
3368 rle_index=0;
3369 for(i=start_i; i<=last_non_zero; i++){
3370 int j= perm_scantable[i];
3371 const int level= block[j];
3372 int coeff;
3373
3374 if(level){
3375 if(level<0) coeff= qmul*level - qadd;
3376 else coeff= qmul*level + qadd;
3377 run_tab[rle_index++]=run;
3378 run=0;
3379
3380 s->dsp.add_8x8basis(rem, basis[j], coeff);
3381 }else{
3382 run++;
3383 }
3384 }
3385#ifdef REFINE_STATS
3386if(last_non_zero>0){
3387STOP_TIMER("init rem[]")
3388}
3389}
3390
3391{START_TIMER
3392#endif
3393 for(;;){
3394 int best_score=s->dsp.try_8x8basis(rem, weight, basis[0], 0);
3395 int best_coeff=0;
3396 int best_change=0;
3397 int run2, best_unquant_change=0, analyze_gradient;
3398#ifdef REFINE_STATS
3399{START_TIMER
3400#endif
3401 analyze_gradient = last_non_zero > 2 || s->avctx->quantizer_noise_shaping >= 3;
3402
3403 if(analyze_gradient){
3404#ifdef REFINE_STATS
3405{START_TIMER
3406#endif
3407 for(i=0; i<64; i++){
3408 int w= weight[i];
3409
3410 d1[i] = (rem[i]*w*w + (1<<(RECON_SHIFT+12-1)))>>(RECON_SHIFT+12);
3411 }
3412#ifdef REFINE_STATS
3413STOP_TIMER("rem*w*w")}
3414{START_TIMER
3415#endif
3416 s->dsp.fdct(d1);
3417#ifdef REFINE_STATS
3418STOP_TIMER("dct")}
3419#endif
3420 }
3421
3422 if(start_i){
3423 const int level= block[0];
3424 int change, old_coeff;
3425
3426 assert(s->mb_intra);
3427
3428 old_coeff= q*level;
3429
3430 for(change=-1; change<=1; change+=2){
3431 int new_level= level + change;
3432 int score, new_coeff;
3433
3434 new_coeff= q*new_level;
3435 if(new_coeff >= 2048 || new_coeff < 0)
3436 continue;
3437
3438 score= s->dsp.try_8x8basis(rem, weight, basis[0], new_coeff - old_coeff);
3439 if(score<best_score){
3440 best_score= score;
3441 best_coeff= 0;
3442 best_change= change;
3443 best_unquant_change= new_coeff - old_coeff;
3444 }
3445 }
3446 }
3447
3448 run=0;
3449 rle_index=0;
3450 run2= run_tab[rle_index++];
3451 prev_level=0;
3452 prev_run=0;
3453
3454 for(i=start_i; i<64; i++){
3455 int j= perm_scantable[i];
3456 const int level= block[j];
3457 int change, old_coeff;
3458
3459 if(s->avctx->quantizer_noise_shaping < 3 && i > last_non_zero + 1)
3460 break;
3461
3462 if(level){
3463 if(level<0) old_coeff= qmul*level - qadd;
3464 else old_coeff= qmul*level + qadd;
3465 run2= run_tab[rle_index++]; //FIXME ! maybe after last
3466 }else{
3467 old_coeff=0;
3468 run2--;
3469 assert(run2>=0 || i >= last_non_zero );
3470 }
3471
3472 for(change=-1; change<=1; change+=2){
3473 int new_level= level + change;
3474 int score, new_coeff, unquant_change;
3475
3476 score=0;
3477 if(s->avctx->quantizer_noise_shaping < 2 && FFABS(new_level) > FFABS(level))
3478 continue;
3479
3480 if(new_level){
3481 if(new_level<0) new_coeff= qmul*new_level - qadd;
3482 else new_coeff= qmul*new_level + qadd;
3483 if(new_coeff >= 2048 || new_coeff <= -2048)
3484 continue;
3485 //FIXME check for overflow
3486
3487 if(level){
3488 if(level < 63 && level > -63){
3489 if(i < last_non_zero)
3490 score += length[UNI_AC_ENC_INDEX(run, new_level+64)]
3491 - length[UNI_AC_ENC_INDEX(run, level+64)];
3492 else
3493 score += last_length[UNI_AC_ENC_INDEX(run, new_level+64)]
3494 - last_length[UNI_AC_ENC_INDEX(run, level+64)];
3495 }
3496 }else{
3497 assert(FFABS(new_level)==1);
3498
3499 if(analyze_gradient){
3500 int g= d1[ scantable[i] ];
3501 if(g && (g^new_level) >= 0)
3502 continue;
3503 }
3504
3505 if(i < last_non_zero){
3506 int next_i= i + run2 + 1;
3507 int next_level= block[ perm_scantable[next_i] ] + 64;
3508
3509 if(next_level&(~127))
3510 next_level= 0;
3511
3512 if(next_i < last_non_zero)
3513 score += length[UNI_AC_ENC_INDEX(run, 65)]
3514 + length[UNI_AC_ENC_INDEX(run2, next_level)]
3515 - length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3516 else
3517 score += length[UNI_AC_ENC_INDEX(run, 65)]
3518 + last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3519 - last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3520 }else{
3521 score += last_length[UNI_AC_ENC_INDEX(run, 65)];
3522 if(prev_level){
3523 score += length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3524 - last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3525 }
3526 }
3527 }
3528 }else{
3529 new_coeff=0;
3530 assert(FFABS(level)==1);
3531
3532 if(i < last_non_zero){
3533 int next_i= i + run2 + 1;
3534 int next_level= block[ perm_scantable[next_i] ] + 64;
3535
3536 if(next_level&(~127))
3537 next_level= 0;
3538
3539 if(next_i < last_non_zero)
3540 score += length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3541 - length[UNI_AC_ENC_INDEX(run2, next_level)]
3542 - length[UNI_AC_ENC_INDEX(run, 65)];
3543 else
3544 score += last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3545 - last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3546 - length[UNI_AC_ENC_INDEX(run, 65)];
3547 }else{
3548 score += -last_length[UNI_AC_ENC_INDEX(run, 65)];
3549 if(prev_level){
3550 score += last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3551 - length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3552 }
3553 }
3554 }
3555
3556 score *= lambda;
3557
3558 unquant_change= new_coeff - old_coeff;
3559 assert((score < 100*lambda && score > -100*lambda) || lambda==0);
3560
3561 score+= s->dsp.try_8x8basis(rem, weight, basis[j], unquant_change);
3562 if(score<best_score){
3563 best_score= score;
3564 best_coeff= i;
3565 best_change= change;
3566 best_unquant_change= unquant_change;
3567 }
3568 }
3569 if(level){
3570 prev_level= level + 64;
3571 if(prev_level&(~127))
3572 prev_level= 0;
3573 prev_run= run;
3574 run=0;
3575 }else{
3576 run++;
3577 }
3578 }
3579#ifdef REFINE_STATS
3580STOP_TIMER("iterative step")}
3581#endif
3582
3583 if(best_change){
3584 int j= perm_scantable[ best_coeff ];
3585
3586 block[j] += best_change;
3587
3588 if(best_coeff > last_non_zero){
3589 last_non_zero= best_coeff;
3590 assert(block[j]);
3591#ifdef REFINE_STATS
3592after_last++;
3593#endif
3594 }else{
3595#ifdef REFINE_STATS
3596if(block[j]){
3597 if(block[j] - best_change){
3598 if(FFABS(block[j]) > FFABS(block[j] - best_change)){
3599 raise++;
3600 }else{
3601 lower++;
3602 }
3603 }else{
3604 from_zero++;
3605 }
3606}else{
3607 to_zero++;
3608}
3609#endif
3610 for(; last_non_zero>=start_i; last_non_zero--){
3611 if(block[perm_scantable[last_non_zero]])
3612 break;
3613 }
3614 }
3615#ifdef REFINE_STATS
3616count++;
3617if(256*256*256*64 % count == 0){
3618 printf("after_last:%d to_zero:%d from_zero:%d raise:%d lower:%d sign:%d xyp:%d/%d/%d\n", after_last, to_zero, from_zero, raise, lower, messed_sign, s->mb_x, s->mb_y, s->picture_number);
3619}
3620#endif
3621 run=0;
3622 rle_index=0;
3623 for(i=start_i; i<=last_non_zero; i++){
3624 int j= perm_scantable[i];
3625 const int level= block[j];
3626
3627 if(level){
3628 run_tab[rle_index++]=run;
3629 run=0;
3630 }else{
3631 run++;
3632 }
3633 }
3634
3635 s->dsp.add_8x8basis(rem, basis[j], best_unquant_change);
3636 }else{
3637 break;
3638 }
3639 }
3640#ifdef REFINE_STATS
3641if(last_non_zero>0){
3642STOP_TIMER("iterative search")
3643}
3644}
3645#endif
3646
3647 return last_non_zero;
3648}
3649
3650int dct_quantize_c(MpegEncContext *s,
3651 DCTELEM *block, int n,
3652 int qscale, int *overflow)
3653{
3654 int i, j, level, last_non_zero, q, start_i;
3655 const int *qmat;
3656 const uint8_t *scantable= s->intra_scantable.scantable;
3657 int bias;
3658 int max=0;
3659 unsigned int threshold1, threshold2;
3660
3661 s->dsp.fdct (block);
3662
3663 if(s->dct_error_sum)
3664 s->denoise_dct(s, block);
3665
3666 if (s->mb_intra) {
3667 if (!s->h263_aic) {
3668 if (n < 4)
3669 q = s->y_dc_scale;
3670 else
3671 q = s->c_dc_scale;
3672 q = q << 3;
3673 } else
3674 /* For AIC we skip quant/dequant of INTRADC */
3675 q = 1 << 3;
3676
3677 /* note: block[0] is assumed to be positive */
3678 block[0] = (block[0] + (q >> 1)) / q;
3679 start_i = 1;
3680 last_non_zero = 0;
3681 qmat = s->q_intra_matrix[qscale];
3682 bias= s->intra_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3683 } else {
3684 start_i = 0;
3685 last_non_zero = -1;
3686 qmat = s->q_inter_matrix[qscale];
3687 bias= s->inter_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3688 }
3689 threshold1= (1<<QMAT_SHIFT) - bias - 1;
3690 threshold2= (threshold1<<1);
3691 for(i=63;i>=start_i;i--) {
3692 j = scantable[i];
3693 level = block[j] * qmat[j];
3694
3695