Revert part of r18903:
[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
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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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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){
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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");
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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){
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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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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
444 if(s->avctx->thread_count > 1)
445 s->rtp_mode= 1;
446
447 if(!avctx->time_base.den || !avctx->time_base.num){
448 av_log(avctx, AV_LOG_ERROR, "framerate not set\n");
449 return -1;
450 }
451
452 i= (INT_MAX/2+128)>>8;
453 if(avctx->me_threshold >= i){
454 av_log(avctx, AV_LOG_ERROR, "me_threshold too large, max is %d\n", i - 1);
455 return -1;
456 }
457 if(avctx->mb_threshold >= i){
458 av_log(avctx, AV_LOG_ERROR, "mb_threshold too large, max is %d\n", i - 1);
459 return -1;
460 }
461
462 if(avctx->b_frame_strategy && (avctx->flags&CODEC_FLAG_PASS2)){
463 av_log(avctx, AV_LOG_INFO, "notice: b_frame_strategy only affects the first pass\n");
464 avctx->b_frame_strategy = 0;
465 }
466
9ce6c138 467 i= av_gcd(avctx->time_base.den, avctx->time_base.num);
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BF
468 if(i > 1){
469 av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n");
470 avctx->time_base.den /= i;
471 avctx->time_base.num /= i;
472// return -1;
473 }
474
475 if(s->codec_id==CODEC_ID_MJPEG){
476 s->intra_quant_bias= 1<<(QUANT_BIAS_SHIFT-1); //(a + x/2)/x
477 s->inter_quant_bias= 0;
478 }else if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO){
479 s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x
480 s->inter_quant_bias= 0;
481 }else{
482 s->intra_quant_bias=0;
483 s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x
484 }
485
486 if(avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
487 s->intra_quant_bias= avctx->intra_quant_bias;
488 if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)
489 s->inter_quant_bias= avctx->inter_quant_bias;
490
491 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift);
492
493 if(avctx->codec_id == CODEC_ID_MPEG4 && s->avctx->time_base.den > (1<<16)-1){
494 av_log(avctx, AV_LOG_ERROR, "timebase not supported by mpeg 4 standard\n");
495 return -1;
496 }
497 s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1;
498
499 switch(avctx->codec->id) {
500 case CODEC_ID_MPEG1VIDEO:
501 s->out_format = FMT_MPEG1;
502 s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
503 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
504 break;
505 case CODEC_ID_MPEG2VIDEO:
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 s->rtp_mode= 1;
510 break;
511 case CODEC_ID_LJPEG:
512 case CODEC_ID_MJPEG:
513 s->out_format = FMT_MJPEG;
514 s->intra_only = 1; /* force intra only for jpeg */
515 s->mjpeg_vsample[0] = 2;
516 s->mjpeg_vsample[1] = 2>>chroma_v_shift;
517 s->mjpeg_vsample[2] = 2>>chroma_v_shift;
518 s->mjpeg_hsample[0] = 2;
519 s->mjpeg_hsample[1] = 2>>chroma_h_shift;
520 s->mjpeg_hsample[2] = 2>>chroma_h_shift;
49fb20cb 521 if (!(CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER)
3ada94ba
BF
522 || ff_mjpeg_encode_init(s) < 0)
523 return -1;
524 avctx->delay=0;
525 s->low_delay=1;
526 break;
527 case CODEC_ID_H261:
49fb20cb 528 if (!CONFIG_H261_ENCODER) return -1;
3ada94ba
BF
529 if (ff_h261_get_picture_format(s->width, s->height) < 0) {
530 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);
531 return -1;
532 }
533 s->out_format = FMT_H261;
534 avctx->delay=0;
535 s->low_delay=1;
536 break;
537 case CODEC_ID_H263:
49fb20cb 538 if (!CONFIG_H263_ENCODER) return -1;
3ada94ba
BF
539 if (h263_get_picture_format(s->width, s->height) == 7) {
540 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);
541 return -1;
542 }
543 s->out_format = FMT_H263;
544 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
545 avctx->delay=0;
546 s->low_delay=1;
547 break;
548 case CODEC_ID_H263P:
549 s->out_format = FMT_H263;
550 s->h263_plus = 1;
551 /* Fx */
552 s->umvplus = (avctx->flags & CODEC_FLAG_H263P_UMV) ? 1:0;
553 s->h263_aic= (avctx->flags & CODEC_FLAG_AC_PRED) ? 1:0;
554 s->modified_quant= s->h263_aic;
555 s->alt_inter_vlc= (avctx->flags & CODEC_FLAG_H263P_AIV) ? 1:0;
556 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
557 s->loop_filter= (avctx->flags & CODEC_FLAG_LOOP_FILTER) ? 1:0;
558 s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
559 s->h263_slice_structured= (s->flags & CODEC_FLAG_H263P_SLICE_STRUCT) ? 1:0;
560
561 /* /Fx */
562 /* These are just to be sure */
563 avctx->delay=0;
564 s->low_delay=1;
565 break;
566 case CODEC_ID_FLV1:
567 s->out_format = FMT_H263;
568 s->h263_flv = 2; /* format = 1; 11-bit codes */
569 s->unrestricted_mv = 1;
570 s->rtp_mode=0; /* don't allow GOB */
571 avctx->delay=0;
572 s->low_delay=1;
573 break;
574 case CODEC_ID_RV10:
575 s->out_format = FMT_H263;
576 avctx->delay=0;
577 s->low_delay=1;
578 break;
579 case CODEC_ID_RV20:
580 s->out_format = FMT_H263;
581 avctx->delay=0;
582 s->low_delay=1;
583 s->modified_quant=1;
584 s->h263_aic=1;
585 s->h263_plus=1;
586 s->loop_filter=1;
587 s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
588 break;
589 case CODEC_ID_MPEG4:
590 s->out_format = FMT_H263;
591 s->h263_pred = 1;
592 s->unrestricted_mv = 1;
593 s->low_delay= s->max_b_frames ? 0 : 1;
594 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
595 break;
596 case CODEC_ID_MSMPEG4V1:
597 s->out_format = FMT_H263;
598 s->h263_msmpeg4 = 1;
599 s->h263_pred = 1;
600 s->unrestricted_mv = 1;
601 s->msmpeg4_version= 1;
602 avctx->delay=0;
603 s->low_delay=1;
604 break;
605 case CODEC_ID_MSMPEG4V2:
606 s->out_format = FMT_H263;
607 s->h263_msmpeg4 = 1;
608 s->h263_pred = 1;
609 s->unrestricted_mv = 1;
610 s->msmpeg4_version= 2;
611 avctx->delay=0;
612 s->low_delay=1;
613 break;
614 case CODEC_ID_MSMPEG4V3:
615 s->out_format = FMT_H263;
616 s->h263_msmpeg4 = 1;
617 s->h263_pred = 1;
618 s->unrestricted_mv = 1;
619 s->msmpeg4_version= 3;
620 s->flipflop_rounding=1;
621 avctx->delay=0;
622 s->low_delay=1;
623 break;
624 case CODEC_ID_WMV1:
625 s->out_format = FMT_H263;
626 s->h263_msmpeg4 = 1;
627 s->h263_pred = 1;
628 s->unrestricted_mv = 1;
629 s->msmpeg4_version= 4;
630 s->flipflop_rounding=1;
631 avctx->delay=0;
632 s->low_delay=1;
633 break;
634 case CODEC_ID_WMV2:
635 s->out_format = FMT_H263;
636 s->h263_msmpeg4 = 1;
637 s->h263_pred = 1;
638 s->unrestricted_mv = 1;
639 s->msmpeg4_version= 5;
640 s->flipflop_rounding=1;
641 avctx->delay=0;
642 s->low_delay=1;
643 break;
644 default:
645 return -1;
646 }
647
648 avctx->has_b_frames= !s->low_delay;
649
650 s->encoding = 1;
651
652 /* init */
653 if (MPV_common_init(s) < 0)
654 return -1;
655
53727262
AJ
656 if(!s->dct_quantize)
657 s->dct_quantize = dct_quantize_c;
658 if(!s->denoise_dct)
659 s->denoise_dct = denoise_dct_c;
660 s->fast_dct_quantize = s->dct_quantize;
febea2f2 661 if(avctx->trellis)
53727262
AJ
662 s->dct_quantize = dct_quantize_trellis_c;
663
49fb20cb 664 if((CONFIG_H263P_ENCODER || CONFIG_RV20_ENCODER) && s->modified_quant)
3ada94ba
BF
665 s->chroma_qscale_table= ff_h263_chroma_qscale_table;
666 s->progressive_frame=
667 s->progressive_sequence= !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN));
668 s->quant_precision=5;
669
670 ff_set_cmp(&s->dsp, s->dsp.ildct_cmp, s->avctx->ildct_cmp);
671 ff_set_cmp(&s->dsp, s->dsp.frame_skip_cmp, s->avctx->frame_skip_cmp);
672
49fb20cb 673 if (CONFIG_H261_ENCODER && s->out_format == FMT_H261)
3ada94ba 674 ff_h261_encode_init(s);
49fb20cb 675 if (CONFIG_ANY_H263_ENCODER && s->out_format == FMT_H263)
3ada94ba 676 h263_encode_init(s);
49fb20cb 677 if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version)
3ada94ba 678 ff_msmpeg4_encode_init(s);
49fb20cb 679 if ((CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
a6bc5731 680 && s->out_format == FMT_MPEG1)
3ada94ba
BF
681 ff_mpeg1_encode_init(s);
682
683 /* init q matrix */
684 for(i=0;i<64;i++) {
685 int j= s->dsp.idct_permutation[i];
49fb20cb 686 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){
3ada94ba
BF
687 s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
688 s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
689 }else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){
690 s->intra_matrix[j] =
691 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
692 }else
693 { /* mpeg1/2 */
694 s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
695 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
696 }
697 if(s->avctx->intra_matrix)
698 s->intra_matrix[j] = s->avctx->intra_matrix[i];
699 if(s->avctx->inter_matrix)
700 s->inter_matrix[j] = s->avctx->inter_matrix[i];
701 }
702
703 /* precompute matrix */
704 /* for mjpeg, we do include qscale in the matrix */
705 if (s->out_format != FMT_MJPEG) {
69cea75f 706 ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
3ada94ba 707 s->intra_matrix, s->intra_quant_bias, avctx->qmin, 31, 1);
69cea75f 708 ff_convert_matrix(&s->dsp, s->q_inter_matrix, s->q_inter_matrix16,
3ada94ba
BF
709 s->inter_matrix, s->inter_quant_bias, avctx->qmin, 31, 0);
710 }
711
712 if(ff_rate_control_init(s) < 0)
713 return -1;
714
715 return 0;
716}
717
98a6fff9 718av_cold int MPV_encode_end(AVCodecContext *avctx)
3ada94ba
BF
719{
720 MpegEncContext *s = avctx->priv_data;
721
722 ff_rate_control_uninit(s);
723
724 MPV_common_end(s);
49fb20cb 725 if ((CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER) && s->out_format == FMT_MJPEG)
3ada94ba
BF
726 ff_mjpeg_encode_close(s);
727
728 av_freep(&avctx->extradata);
729
730 return 0;
731}
732
733static int get_sae(uint8_t *src, int ref, int stride){
734 int x,y;
735 int acc=0;
736
737 for(y=0; y<16; y++){
738 for(x=0; x<16; x++){
739 acc+= FFABS(src[x+y*stride] - ref);
740 }
741 }
742
743 return acc;
744}
745
746static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride){
747 int x, y, w, h;
748 int acc=0;
749
750 w= s->width &~15;
751 h= s->height&~15;
752
753 for(y=0; y<h; y+=16){
754 for(x=0; x<w; x+=16){
755 int offset= x + y*stride;
756 int sad = s->dsp.sad[0](NULL, src + offset, ref + offset, stride, 16);
757 int mean= (s->dsp.pix_sum(src + offset, stride) + 128)>>8;
758 int sae = get_sae(src + offset, mean, stride);
759
760 acc+= sae + 500 < sad;
761 }
762 }
763 return acc;
764}
765
766
767static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
768 AVFrame *pic=NULL;
769 int64_t pts;
770 int i;
771 const int encoding_delay= s->max_b_frames;
772 int direct=1;
773
774 if(pic_arg){
775 pts= pic_arg->pts;
776 pic_arg->display_picture_number= s->input_picture_number++;
777
778 if(pts != AV_NOPTS_VALUE){
779 if(s->user_specified_pts != AV_NOPTS_VALUE){
780 int64_t time= pts;
781 int64_t last= s->user_specified_pts;
782
783 if(time <= last){
784 av_log(s->avctx, AV_LOG_ERROR, "Error, Invalid timestamp=%"PRId64", last=%"PRId64"\n", pts, s->user_specified_pts);
785 return -1;
786 }
787 }
788 s->user_specified_pts= pts;
789 }else{
790 if(s->user_specified_pts != AV_NOPTS_VALUE){
791 s->user_specified_pts=
792 pts= s->user_specified_pts + 1;
793 av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%"PRId64")\n", pts);
794 }else{
795 pts= pic_arg->display_picture_number;
796 }
797 }
798 }
799
800 if(pic_arg){
801 if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0;
802 if(pic_arg->linesize[0] != s->linesize) direct=0;
803 if(pic_arg->linesize[1] != s->uvlinesize) direct=0;
804 if(pic_arg->linesize[2] != s->uvlinesize) direct=0;
805
806// av_log(AV_LOG_DEBUG, "%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize);
807
808 if(direct){
809 i= ff_find_unused_picture(s, 1);
810
811 pic= (AVFrame*)&s->picture[i];
812 pic->reference= 3;
813
814 for(i=0; i<4; i++){
815 pic->data[i]= pic_arg->data[i];
816 pic->linesize[i]= pic_arg->linesize[i];
817 }
818 alloc_picture(s, (Picture*)pic, 1);
819 }else{
820 i= ff_find_unused_picture(s, 0);
821
822 pic= (AVFrame*)&s->picture[i];
823 pic->reference= 3;
824
825 alloc_picture(s, (Picture*)pic, 0);
826
827 if( pic->data[0] + INPLACE_OFFSET == pic_arg->data[0]
828 && pic->data[1] + INPLACE_OFFSET == pic_arg->data[1]
829 && pic->data[2] + INPLACE_OFFSET == pic_arg->data[2]){
830 // empty
831 }else{
832 int h_chroma_shift, v_chroma_shift;
833 avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
834
835 for(i=0; i<3; i++){
836 int src_stride= pic_arg->linesize[i];
837 int dst_stride= i ? s->uvlinesize : s->linesize;
838 int h_shift= i ? h_chroma_shift : 0;
839 int v_shift= i ? v_chroma_shift : 0;
840 int w= s->width >>h_shift;
841 int h= s->height>>v_shift;
842 uint8_t *src= pic_arg->data[i];
843 uint8_t *dst= pic->data[i];
844
845 if(!s->avctx->rc_buffer_size)
846 dst +=INPLACE_OFFSET;
847
848 if(src_stride==dst_stride)
849 memcpy(dst, src, src_stride*h);
850 else{
851 while(h--){
852 memcpy(dst, src, w);
853 dst += dst_stride;
854 src += src_stride;
855 }
856 }
857 }
858 }
859 }
860 copy_picture_attributes(s, pic, pic_arg);
861 pic->pts= pts; //we set this here to avoid modifiying pic_arg
862 }
863
864 /* shift buffer entries */
865 for(i=1; i<MAX_PICTURE_COUNT /*s->encoding_delay+1*/; i++)
866 s->input_picture[i-1]= s->input_picture[i];
867
868 s->input_picture[encoding_delay]= (Picture*)pic;
869
870 return 0;
871}
872
873static int skip_check(MpegEncContext *s, Picture *p, Picture *ref){
874 int x, y, plane;
875 int score=0;
876 int64_t score64=0;
877
878 for(plane=0; plane<3; plane++){
879 const int stride= p->linesize[plane];
880 const int bw= plane ? 1 : 2;
881 for(y=0; y<s->mb_height*bw; y++){
882 for(x=0; x<s->mb_width*bw; x++){
883 int off= p->type == FF_BUFFER_TYPE_SHARED ? 0: 16;
884 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);
885
886 switch(s->avctx->frame_skip_exp){
887 case 0: score= FFMAX(score, v); break;
888 case 1: score+= FFABS(v);break;
889 case 2: score+= v*v;break;
890 case 3: score64+= FFABS(v*v*(int64_t)v);break;
891 case 4: score64+= v*v*(int64_t)(v*v);break;
892 }
893 }
894 }
895 }
896
897 if(score) score64= score;
898
899 if(score64 < s->avctx->frame_skip_threshold)
900 return 1;
901 if(score64 < ((s->avctx->frame_skip_factor * (int64_t)s->lambda)>>8))
902 return 1;
903 return 0;
904}
905
906static int estimate_best_b_count(MpegEncContext *s){
907 AVCodec *codec= avcodec_find_encoder(s->avctx->codec_id);
908 AVCodecContext *c= avcodec_alloc_context();
909 AVFrame input[FF_MAX_B_FRAMES+2];
910 const int scale= s->avctx->brd_scale;
911 int i, j, out_size, p_lambda, b_lambda, lambda2;
912 int outbuf_size= s->width * s->height; //FIXME
913 uint8_t *outbuf= av_malloc(outbuf_size);
914 int64_t best_rd= INT64_MAX;
915 int best_b_count= -1;
916
917 assert(scale>=0 && scale <=3);
918
919// emms_c();
9701840b
AJ
920 p_lambda= s->last_lambda_for[FF_P_TYPE]; //s->next_picture_ptr->quality;
921 b_lambda= s->last_lambda_for[FF_B_TYPE]; //p_lambda *FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset;
3ada94ba
BF
922 if(!b_lambda) b_lambda= p_lambda; //FIXME we should do this somewhere else
923 lambda2= (b_lambda*b_lambda + (1<<FF_LAMBDA_SHIFT)/2 ) >> FF_LAMBDA_SHIFT;
924
925 c->width = s->width >> scale;
926 c->height= s->height>> scale;
927 c->flags= CODEC_FLAG_QSCALE | CODEC_FLAG_PSNR | CODEC_FLAG_INPUT_PRESERVED /*| CODEC_FLAG_EMU_EDGE*/;
928 c->flags|= s->avctx->flags & CODEC_FLAG_QPEL;
929 c->mb_decision= s->avctx->mb_decision;
930 c->me_cmp= s->avctx->me_cmp;
931 c->mb_cmp= s->avctx->mb_cmp;
932 c->me_sub_cmp= s->avctx->me_sub_cmp;
933 c->pix_fmt = PIX_FMT_YUV420P;
934 c->time_base= s->avctx->time_base;
935 c->max_b_frames= s->max_b_frames;
936
937 if (avcodec_open(c, codec) < 0)
938 return -1;
939
940 for(i=0; i<s->max_b_frames+2; i++){
941 int ysize= c->width*c->height;
942 int csize= (c->width/2)*(c->height/2);
943 Picture pre_input, *pre_input_ptr= i ? s->input_picture[i-1] : s->next_picture_ptr;
944
945 avcodec_get_frame_defaults(&input[i]);
946 input[i].data[0]= av_malloc(ysize + 2*csize);
947 input[i].data[1]= input[i].data[0] + ysize;
948 input[i].data[2]= input[i].data[1] + csize;
949 input[i].linesize[0]= c->width;
950 input[i].linesize[1]=
951 input[i].linesize[2]= c->width/2;
952
953 if(pre_input_ptr && (!i || s->input_picture[i-1])) {
954 pre_input= *pre_input_ptr;
955
956 if(pre_input.type != FF_BUFFER_TYPE_SHARED && i) {
957 pre_input.data[0]+=INPLACE_OFFSET;
958 pre_input.data[1]+=INPLACE_OFFSET;
959 pre_input.data[2]+=INPLACE_OFFSET;
960 }
961
962 s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0], pre_input.data[0], pre_input.linesize[0], c->width, c->height);
963 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);
964 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);
965 }
966 }
967
968 for(j=0; j<s->max_b_frames+1; j++){
969 int64_t rd=0;
970
971 if(!s->input_picture[j])
972 break;
973
974 c->error[0]= c->error[1]= c->error[2]= 0;
975
9701840b 976 input[0].pict_type= FF_I_TYPE;
3ada94ba
BF
977 input[0].quality= 1 * FF_QP2LAMBDA;
978 out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[0]);
979// rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT;
980
981 for(i=0; i<s->max_b_frames+1; i++){
982 int is_p= i % (j+1) == j || i==s->max_b_frames;
983
9701840b 984 input[i+1].pict_type= is_p ? FF_P_TYPE : FF_B_TYPE;
3ada94ba
BF
985 input[i+1].quality= is_p ? p_lambda : b_lambda;
986 out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[i+1]);
987 rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
988 }
989
990 /* get the delayed frames */
991 while(out_size){
992 out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);
993 rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
994 }
995
996 rd += c->error[0] + c->error[1] + c->error[2];
997
998 if(rd < best_rd){
999 best_rd= rd;
1000 best_b_count= j;
1001 }
1002 }
1003
1004 av_freep(&outbuf);
1005 avcodec_close(c);
1006 av_freep(&c);
1007
1008 for(i=0; i<s->max_b_frames+2; i++){
1009 av_freep(&input[i].data[0]);
1010 }
1011
1012 return best_b_count;
1013}
1014
1015static void select_input_picture(MpegEncContext *s){
1016 int i;
1017
1018 for(i=1; i<MAX_PICTURE_COUNT; i++)
1019 s->reordered_input_picture[i-1]= s->reordered_input_picture[i];
1020 s->reordered_input_picture[MAX_PICTURE_COUNT-1]= NULL;
1021
1022 /* set next picture type & ordering */
1023 if(s->reordered_input_picture[0]==NULL && s->input_picture[0]){
1024 if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture_ptr==NULL || s->intra_only){
1025 s->reordered_input_picture[0]= s->input_picture[0];
9701840b 1026 s->reordered_input_picture[0]->pict_type= FF_I_TYPE;
3ada94ba
BF
1027 s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1028 }else{
1029 int b_frames;
1030
1031 if(s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor){
1032 if(s->picture_in_gop_number < s->gop_size && skip_check(s, s->input_picture[0], s->next_picture_ptr)){
1033 //FIXME check that te gop check above is +-1 correct
1034//av_log(NULL, AV_LOG_DEBUG, "skip %p %"PRId64"\n", s->input_picture[0]->data[0], s->input_picture[0]->pts);
1035
1036 if(s->input_picture[0]->type == FF_BUFFER_TYPE_SHARED){
1037 for(i=0; i<4; i++)
1038 s->input_picture[0]->data[i]= NULL;
1039 s->input_picture[0]->type= 0;
1040 }else{
1041 assert( s->input_picture[0]->type==FF_BUFFER_TYPE_USER
1042 || s->input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1043
1044 s->avctx->release_buffer(s->avctx, (AVFrame*)s->input_picture[0]);
1045 }
1046
1047 emms_c();
1048 ff_vbv_update(s, 0);
1049
1050 goto no_output_pic;
1051 }
1052 }
1053
1054 if(s->flags&CODEC_FLAG_PASS2){
1055 for(i=0; i<s->max_b_frames+1; i++){
1056 int pict_num= s->input_picture[0]->display_picture_number + i;
1057
1058 if(pict_num >= s->rc_context.num_entries)
1059 break;
1060 if(!s->input_picture[i]){
9701840b 1061 s->rc_context.entry[pict_num-1].new_pict_type = FF_P_TYPE;
3ada94ba
BF
1062 break;
1063 }
1064
1065 s->input_picture[i]->pict_type=
1066 s->rc_context.entry[pict_num].new_pict_type;
1067 }
1068 }
1069
1070 if(s->avctx->b_frame_strategy==0){
1071 b_frames= s->max_b_frames;
1072 while(b_frames && !s->input_picture[b_frames]) b_frames--;
1073 }else if(s->avctx->b_frame_strategy==1){
1074 for(i=1; i<s->max_b_frames+1; i++){
1075 if(s->input_picture[i] && s->input_picture[i]->b_frame_score==0){
1076 s->input_picture[i]->b_frame_score=
1077 get_intra_count(s, s->input_picture[i ]->data[0],
1078 s->input_picture[i-1]->data[0], s->linesize) + 1;
1079 }
1080 }
1081 for(i=0; i<s->max_b_frames+1; i++){
1082 if(s->input_picture[i]==NULL || s->input_picture[i]->b_frame_score - 1 > s->mb_num/s->avctx->b_sensitivity) break;
1083 }
1084
1085 b_frames= FFMAX(0, i-1);
1086
1087 /* reset scores */
1088 for(i=0; i<b_frames+1; i++){
1089 s->input_picture[i]->b_frame_score=0;
1090 }
1091 }else if(s->avctx->b_frame_strategy==2){
1092 b_frames= estimate_best_b_count(s);
1093 }else{
1094 av_log(s->avctx, AV_LOG_ERROR, "illegal b frame strategy\n");
1095 b_frames=0;
1096 }
1097
1098 emms_c();
1099//static int b_count=0;
1100//b_count+= b_frames;
1101//av_log(s->avctx, AV_LOG_DEBUG, "b_frames: %d\n", b_count);
1102
1103 for(i= b_frames - 1; i>=0; i--){
1104 int type= s->input_picture[i]->pict_type;
9701840b 1105 if(type && type != FF_B_TYPE)
3ada94ba
BF
1106 b_frames= i;
1107 }
9701840b 1108 if(s->input_picture[b_frames]->pict_type == FF_B_TYPE && b_frames == s->max_b_frames){
3ada94ba
BF
1109 av_log(s->avctx, AV_LOG_ERROR, "warning, too many b frames in a row\n");
1110 }
1111
1112 if(s->picture_in_gop_number + b_frames >= s->gop_size){
1113 if((s->flags2 & CODEC_FLAG2_STRICT_GOP) && s->gop_size > s->picture_in_gop_number){
1114 b_frames= s->gop_size - s->picture_in_gop_number - 1;
1115 }else{
1116 if(s->flags & CODEC_FLAG_CLOSED_GOP)
1117 b_frames=0;
9701840b 1118 s->input_picture[b_frames]->pict_type= FF_I_TYPE;
3ada94ba
BF
1119 }
1120 }
1121
1122 if( (s->flags & CODEC_FLAG_CLOSED_GOP)
1123 && b_frames
9701840b 1124 && s->input_picture[b_frames]->pict_type== FF_I_TYPE)
3ada94ba
BF
1125 b_frames--;
1126
1127 s->reordered_input_picture[0]= s->input_picture[b_frames];
9701840b
AJ
1128 if(s->reordered_input_picture[0]->pict_type != FF_I_TYPE)
1129 s->reordered_input_picture[0]->pict_type= FF_P_TYPE;
3ada94ba
BF
1130 s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1131 for(i=0; i<b_frames; i++){
1132 s->reordered_input_picture[i+1]= s->input_picture[i];
9701840b 1133 s->reordered_input_picture[i+1]->pict_type= FF_B_TYPE;
3ada94ba
BF
1134 s->reordered_input_picture[i+1]->coded_picture_number= s->coded_picture_number++;
1135 }
1136 }
1137 }
1138no_output_pic:
1139 if(s->reordered_input_picture[0]){
9701840b 1140 s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=FF_B_TYPE ? 3 : 0;
3ada94ba 1141
8d2fc163 1142 ff_copy_picture(&s->new_picture, s->reordered_input_picture[0]);
3ada94ba
BF
1143
1144 if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_SHARED || s->avctx->rc_buffer_size){
1145 // input is a shared pix, so we can't modifiy it -> alloc a new one & ensure that the shared one is reuseable
1146
1147 int i= ff_find_unused_picture(s, 0);
1148 Picture *pic= &s->picture[i];
1149
1150 pic->reference = s->reordered_input_picture[0]->reference;
1151 alloc_picture(s, pic, 0);
1152
1153 /* mark us unused / free shared pic */
1154 if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_INTERNAL)
1155 s->avctx->release_buffer(s->avctx, (AVFrame*)s->reordered_input_picture[0]);
1156 for(i=0; i<4; i++)
1157 s->reordered_input_picture[0]->data[i]= NULL;
1158 s->reordered_input_picture[0]->type= 0;
1159
1160 copy_picture_attributes(s, (AVFrame*)pic, (AVFrame*)s->reordered_input_picture[0]);
1161
1162 s->current_picture_ptr= pic;
1163 }else{
1164 // input is not a shared pix -> reuse buffer for current_pix
1165
1166 assert( s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
1167 || s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1168
1169 s->current_picture_ptr= s->reordered_input_picture[0];
1170 for(i=0; i<4; i++){
1171 s->new_picture.data[i]+= INPLACE_OFFSET;
1172 }
1173 }
8d2fc163 1174 ff_copy_picture(&s->current_picture, s->current_picture_ptr);
3ada94ba
BF
1175
1176 s->picture_number= s->new_picture.display_picture_number;
1177//printf("dpn:%d\n", s->picture_number);
1178 }else{
1179 memset(&s->new_picture, 0, sizeof(Picture));
1180 }
1181}
1182
1183int MPV_encode_picture(AVCodecContext *avctx,
1184 unsigned char *buf, int buf_size, void *data)
1185{
1186 MpegEncContext *s = avctx->priv_data;
1187 AVFrame *pic_arg = data;
1188 int i, stuffing_count;
1189
1190 for(i=0; i<avctx->thread_count; i++){
1191 int start_y= s->thread_context[i]->start_mb_y;
1192 int end_y= s->thread_context[i]-> end_mb_y;
1193 int h= s->mb_height;
1194 uint8_t *start= buf + (size_t)(((int64_t) buf_size)*start_y/h);
1195 uint8_t *end = buf + (size_t)(((int64_t) buf_size)* end_y/h);
1196
1197 init_put_bits(&s->thread_context[i]->pb, start, end - start);
1198 }
1199
1200 s->picture_in_gop_number++;
1201
1202 if(load_input_picture(s, pic_arg) < 0)
1203 return -1;
1204
1205 select_input_picture(s);
1206
1207 /* output? */
1208 if(s->new_picture.data[0]){
1209 s->pict_type= s->new_picture.pict_type;
1210//emms_c();
1211//printf("qs:%f %f %d\n", s->new_picture.quality, s->current_picture.quality, s->qscale);
1212 MPV_frame_start(s, avctx);
1213vbv_retry:
1214 if (encode_picture(s, s->picture_number) < 0)
1215 return -1;
1216
1217 avctx->real_pict_num = s->picture_number;
1218 avctx->header_bits = s->header_bits;
1219 avctx->mv_bits = s->mv_bits;
1220 avctx->misc_bits = s->misc_bits;
1221 avctx->i_tex_bits = s->i_tex_bits;
1222 avctx->p_tex_bits = s->p_tex_bits;
1223 avctx->i_count = s->i_count;
1224 avctx->p_count = s->mb_num - s->i_count - s->skip_count; //FIXME f/b_count in avctx
1225 avctx->skip_count = s->skip_count;
1226
1227 MPV_frame_end(s);
1228
49fb20cb 1229 if (CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG)
3ada94ba
BF
1230 ff_mjpeg_encode_picture_trailer(s);
1231
1232 if(avctx->rc_buffer_size){
1233 RateControlContext *rcc= &s->rc_context;
3bff4d8b 1234 int max_size= rcc->buffer_index * avctx->rc_max_available_vbv_use;
3ada94ba
BF
1235
1236 if(put_bits_count(&s->pb) > max_size && s->lambda < s->avctx->lmax){
1237 s->next_lambda= FFMAX(s->lambda+1, s->lambda*(s->qscale+1) / s->qscale);
1238 if(s->adaptive_quant){
1239 int i;
1240 for(i=0; i<s->mb_height*s->mb_stride; i++)
1241 s->lambda_table[i]= FFMAX(s->lambda_table[i]+1, s->lambda_table[i]*(s->qscale+1) / s->qscale);
1242 }
1243 s->mb_skipped = 0; //done in MPV_frame_start()
9701840b 1244 if(s->pict_type==FF_P_TYPE){ //done in encode_picture() so we must undo it
3ada94ba
BF
1245 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
1246 s->no_rounding ^= 1;
1247 }
9701840b 1248 if(s->pict_type!=FF_B_TYPE){
3ada94ba
BF
1249 s->time_base= s->last_time_base;
1250 s->last_non_b_time= s->time - s->pp_time;
1251 }
1252// av_log(NULL, AV_LOG_ERROR, "R:%d ", s->next_lambda);
1253 for(i=0; i<avctx->thread_count; i++){
1254 PutBitContext *pb= &s->thread_context[i]->pb;
1255 init_put_bits(pb, pb->buf, pb->buf_end - pb->buf);
1256 }
1257 goto vbv_retry;
1258 }
1259
1260 assert(s->avctx->rc_max_rate);
1261 }
1262
1263 if(s->flags&CODEC_FLAG_PASS1)
1264 ff_write_pass1_stats(s);
1265
1266 for(i=0; i<4; i++){
1267 s->current_picture_ptr->error[i]= s->current_picture.error[i];
1268 avctx->error[i] += s->current_picture_ptr->error[i];
1269 }
1270
1271 if(s->flags&CODEC_FLAG_PASS1)
1272 assert(avctx->header_bits + avctx->mv_bits + avctx->misc_bits + avctx->i_tex_bits + avctx->p_tex_bits == put_bits_count(&s->pb));
1273 flush_put_bits(&s->pb);
1274 s->frame_bits = put_bits_count(&s->pb);
1275
1276 stuffing_count= ff_vbv_update(s, s->frame_bits);
1277 if(stuffing_count){
1278 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < stuffing_count + 50){
1279 av_log(s->avctx, AV_LOG_ERROR, "stuffing too large\n");
1280 return -1;
1281 }
1282
1283 switch(s->codec_id){
1284 case CODEC_ID_MPEG1VIDEO:
1285 case CODEC_ID_MPEG2VIDEO:
1286 while(stuffing_count--){
1287 put_bits(&s->pb, 8, 0);
1288 }
1289 break;
1290 case CODEC_ID_MPEG4:
1291 put_bits(&s->pb, 16, 0);
1292 put_bits(&s->pb, 16, 0x1C3);
1293 stuffing_count -= 4;
1294 while(stuffing_count--){
1295 put_bits(&s->pb, 8, 0xFF);
1296 }
1297 break;
1298 default:
1299 av_log(s->avctx, AV_LOG_ERROR, "vbv buffer overflow\n");
1300 }
1301 flush_put_bits(&s->pb);
1302 s->frame_bits = put_bits_count(&s->pb);
1303 }
1304
1305 /* update mpeg1/2 vbv_delay for CBR */
1306 if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && s->out_format == FMT_MPEG1
1307 && 90000LL * (avctx->rc_buffer_size-1) <= s->avctx->rc_max_rate*0xFFFFLL){
4601e76a
MN
1308 int vbv_delay, min_delay;
1309 double inbits = s->avctx->rc_max_rate*av_q2d(s->avctx->time_base);
1310 int minbits= s->frame_bits - 8*(s->vbv_delay_ptr - s->pb.buf - 1);
1311 double bits = s->rc_context.buffer_index + minbits - inbits;
1312
1313 if(bits<0)
1314 av_log(s->avctx, AV_LOG_ERROR, "Internal error, negative bits\n");
3ada94ba
BF
1315
1316 assert(s->repeat_first_field==0);
1317
4601e76a
MN
1318 vbv_delay= bits * 90000 / s->avctx->rc_max_rate;
1319 min_delay= (minbits * 90000LL + s->avctx->rc_max_rate - 1)/ s->avctx->rc_max_rate;
1320
1321 vbv_delay= FFMAX(vbv_delay, min_delay);
1322
3ada94ba
BF
1323 assert(vbv_delay < 0xFFFF);
1324
1325 s->vbv_delay_ptr[0] &= 0xF8;
1326 s->vbv_delay_ptr[0] |= vbv_delay>>13;
1327 s->vbv_delay_ptr[1] = vbv_delay>>5;
1328 s->vbv_delay_ptr[2] &= 0x07;
1329 s->vbv_delay_ptr[2] |= vbv_delay<<3;
1330 }
1331 s->total_bits += s->frame_bits;
1332 avctx->frame_bits = s->frame_bits;
1333 }else{
fb53b4a0 1334 assert((put_bits_ptr(&s->pb) == s->pb.buf));
3ada94ba
BF
1335 s->frame_bits=0;
1336 }
1337 assert((s->frame_bits&7)==0);
1338
1339 return s->frame_bits/8;
1340}
1341
1342static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold)
1343{
1344 static const char tab[64]=
1345 {3,2,2,1,1,1,1,1,
1346 1,1,1,1,1,1,1,1,
1347 1,1,1,1,1,1,1,1,
1348 0,0,0,0,0,0,0,0,
1349 0,0,0,0,0,0,0,0,
1350 0,0,0,0,0,0,0,0,
1351 0,0,0,0,0,0,0,0,
1352 0,0,0,0,0,0,0,0};
1353 int score=0;
1354 int run=0;
1355 int i;
1356 DCTELEM *block= s->block[n];
1357 const int last_index= s->block_last_index[n];
1358 int skip_dc;
1359
1360 if(threshold<0){
1361 skip_dc=0;
1362 threshold= -threshold;
1363 }else
1364 skip_dc=1;
1365
bd107136 1366 /* Are all we could set to zero already zero? */
3ada94ba
BF
1367 if(last_index<=skip_dc - 1) return;
1368
1369 for(i=0; i<=last_index; i++){
1370 const int j = s->intra_scantable.permutated[i];
1371 const int level = FFABS(block[j]);
1372 if(level==1){
1373 if(skip_dc && i==0) continue;
1374 score+= tab[run];
1375 run=0;
1376 }else if(level>1){
1377 return;
1378 }else{
1379 run++;
1380 }
1381 }
1382 if(score >= threshold) return;
1383 for(i=skip_dc; i<=last_index; i++){
1384 const int j = s->intra_scantable.permutated[i];
1385 block[j]=0;
1386 }
1387 if(block[0]) s->block_last_index[n]= 0;
1388 else s->block_last_index[n]= -1;
1389}
1390
1391static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1392{
1393 int i;
1394 const int maxlevel= s->max_qcoeff;
1395 const int minlevel= s->min_qcoeff;
1396 int overflow=0;
1397
1398 if(s->mb_intra){
1399 i=1; //skip clipping of intra dc
1400 }else
1401 i=0;
1402
1403 for(;i<=last_index; i++){
1404 const int j= s->intra_scantable.permutated[i];
1405 int level = block[j];
1406
1407 if (level>maxlevel){
1408 level=maxlevel;
1409 overflow++;
1410 }else if(level<minlevel){
1411 level=minlevel;
1412 overflow++;
1413 }
1414
1415 block[j]= level;
1416 }
1417
1418 if(overflow && s->avctx->mb_decision == FF_MB_DECISION_SIMPLE)
1419 av_log(s->avctx, AV_LOG_INFO, "warning, clipping %d dct coefficients to %d..%d\n", overflow, minlevel, maxlevel);
1420}
1421
f073a393 1422static void get_visual_weight(int16_t *weight, uint8_t *ptr, int stride){
3ada94ba
BF
1423 int x, y;
1424//FIXME optimize
1425 for(y=0; y<8; y++){
1426 for(x=0; x<8; x++){
1427 int x2, y2;
1428 int sum=0;
1429 int sqr=0;
1430 int count=0;
1431
1432 for(y2= FFMAX(y-1, 0); y2 < FFMIN(8, y+2); y2++){
1433 for(x2= FFMAX(x-1, 0); x2 < FFMIN(8, x+2); x2++){
1434 int v= ptr[x2 + y2*stride];
1435 sum += v;
1436 sqr += v*v;
1437 count++;
1438 }
1439 }
1440 weight[x + 8*y]= (36*ff_sqrt(count*sqr - sum*sum)) / count;
1441 }
1442 }
1443}
1444
1445static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count)
1446{
1447 int16_t weight[8][64];
1448 DCTELEM orig[8][64];
1449 const int mb_x= s->mb_x;
1450 const int mb_y= s->mb_y;
1451 int i;
1452 int skip_dct[8];
1453 int dct_offset = s->linesize*8; //default for progressive frames
1454 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1455 int wrap_y, wrap_c;
1456
1457 for(i=0; i<mb_block_count; i++) skip_dct[i]=s->skipdct;
1458
1459 if(s->adaptive_quant){
1460 const int last_qp= s->qscale;
1461 const int mb_xy= mb_x + mb_y*s->mb_stride;
1462
1463 s->lambda= s->lambda_table[mb_xy];
1464 update_qscale(s);
1465
1466 if(!(s->flags&CODEC_FLAG_QP_RD)){
1467 s->qscale= s->current_picture_ptr->qscale_table[mb_xy];
1468 s->dquant= s->qscale - last_qp;
1469
1470 if(s->out_format==FMT_H263){
1471 s->dquant= av_clip(s->dquant, -2, 2);
1472
1473 if(s->codec_id==CODEC_ID_MPEG4){
1474 if(!s->mb_intra){
9701840b 1475 if(s->pict_type == FF_B_TYPE){
3ada94ba
BF
1476 if(s->dquant&1 || s->mv_dir&MV_DIRECT)
1477 s->dquant= 0;
1478 }
1479 if(s->mv_type==MV_TYPE_8X8)
1480 s->dquant=0;
1481 }
1482 }
1483 }
1484 }
1485 ff_set_qscale(s, last_qp + s->dquant);
1486 }else if(s->flags&CODEC_FLAG_QP_RD)
1487 ff_set_qscale(s, s->qscale + s->dquant);
1488
1489 wrap_y = s->linesize;
1490 wrap_c = s->uvlinesize;
1491 ptr_y = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
1492 ptr_cb = s->new_picture.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1493 ptr_cr = s->new_picture.data[2] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1494
1495 if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
1496 uint8_t *ebuf= s->edge_emu_buffer + 32;
1497 ff_emulated_edge_mc(ebuf , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width , s->height);
1498 ptr_y= ebuf;
1499 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);
1500 ptr_cb= ebuf+18*wrap_y;
1501 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);
1502 ptr_cr= ebuf+18*wrap_y+8;
1503 }
1504
1505 if (s->mb_intra) {
1506 if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1507 int progressive_score, interlaced_score;
1508
1509 s->interlaced_dct=0;
1510 progressive_score= s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y, 8)
1511 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y*8, NULL, wrap_y, 8) - 400;
1512
1513 if(progressive_score > 0){
1514 interlaced_score = s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y*2, 8)
1515 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y , NULL, wrap_y*2, 8);
1516 if(progressive_score > interlaced_score){
1517 s->interlaced_dct=1;
1518
1519 dct_offset= wrap_y;
1520 wrap_y<<=1;
1521 if (s->chroma_format == CHROMA_422)
1522 wrap_c<<=1;
1523 }
1524 }
1525 }
1526
1527 s->dsp.get_pixels(s->block[0], ptr_y , wrap_y);
1528 s->dsp.get_pixels(s->block[1], ptr_y + 8, wrap_y);
1529 s->dsp.get_pixels(s->block[2], ptr_y + dct_offset , wrap_y);
1530 s->dsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y);
1531
1532 if(s->flags&CODEC_FLAG_GRAY){
1533 skip_dct[4]= 1;
1534 skip_dct[5]= 1;
1535 }else{
1536 s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c);
1537 s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c);
1538 if(!s->chroma_y_shift){ /* 422 */
1539 s->dsp.get_pixels(s->block[6], ptr_cb + (dct_offset>>1), wrap_c);
1540 s->dsp.get_pixels(s->block[7], ptr_cr + (dct_offset>>1), wrap_c);
1541 }
1542 }
1543 }else{
1544 op_pixels_func (*op_pix)[4];
1545 qpel_mc_func (*op_qpix)[16];
1546 uint8_t *dest_y, *dest_cb, *dest_cr;
1547
1548 dest_y = s->dest[0];
1549 dest_cb = s->dest[1];
1550 dest_cr = s->dest[2];
1551
9701840b 1552 if ((!s->no_rounding) || s->pict_type==FF_B_TYPE){
3ada94ba
BF
1553 op_pix = s->dsp.put_pixels_tab;
1554 op_qpix= s->dsp.put_qpel_pixels_tab;
1555 }else{
1556 op_pix = s->dsp.put_no_rnd_pixels_tab;
1557 op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab;
1558 }
1559
1560 if (s->mv_dir & MV_DIR_FORWARD) {
1561 MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix);
1562 op_pix = s->dsp.avg_pixels_tab;
1563 op_qpix= s->dsp.avg_qpel_pixels_tab;
1564 }
1565 if (s->mv_dir & MV_DIR_BACKWARD) {
1566 MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix);
1567 }
1568
1569 if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1570 int progressive_score, interlaced_score;
1571
1572 s->interlaced_dct=0;
1573 progressive_score= s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y, 8)
1574 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y*8, ptr_y + wrap_y*8, wrap_y, 8) - 400;
1575
1576 if(s->avctx->ildct_cmp == FF_CMP_VSSE) progressive_score -= 400;
1577
1578 if(progressive_score>0){
1579 interlaced_score = s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y*2, 8)
1580 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y , ptr_y + wrap_y , wrap_y*2, 8);
1581
1582 if(progressive_score > interlaced_score){
1583 s->interlaced_dct=1;
1584
1585 dct_offset= wrap_y;
1586 wrap_y<<=1;
1587 if (s->chroma_format == CHROMA_422)
1588 wrap_c<<=1;
1589 }
1590 }
1591 }
1592
1593 s->dsp.diff_pixels(s->block[0], ptr_y , dest_y , wrap_y);
1594 s->dsp.diff_pixels(s->block[1], ptr_y + 8, dest_y + 8, wrap_y);
1595 s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset , dest_y + dct_offset , wrap_y);
1596 s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y);
1597
1598 if(s->flags&CODEC_FLAG_GRAY){
1599 skip_dct[4]= 1;
1600 skip_dct[5]= 1;
1601 }else{
1602 s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
1603 s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
1604 if(!s->chroma_y_shift){ /* 422 */
1605 s->dsp.diff_pixels(s->block[6], ptr_cb + (dct_offset>>1), dest_cb + (dct_offset>>1), wrap_c);
1606 s->dsp.diff_pixels(s->block[7], ptr_cr + (dct_offset>>1), dest_cr + (dct_offset>>1), wrap_c);
1607 }
1608 }
1609 /* pre quantization */
1610 if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){
1611 //FIXME optimize
1612 if(s->dsp.sad[1](NULL, ptr_y , dest_y , wrap_y, 8) < 20*s->qscale) skip_dct[0]= 1;
1613 if(s->dsp.sad[1](NULL, ptr_y + 8, dest_y + 8, wrap_y, 8) < 20*s->qscale) skip_dct[1]= 1;
1614 if(s->dsp.sad[1](NULL, ptr_y +dct_offset , dest_y +dct_offset , wrap_y, 8) < 20*s->qscale) skip_dct[2]= 1;
1615 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;
1616 if(s->dsp.sad[1](NULL, ptr_cb , dest_cb , wrap_c, 8) < 20*s->qscale) skip_dct[4]= 1;
1617 if(s->dsp.sad[1](NULL, ptr_cr , dest_cr , wrap_c, 8) < 20*s->qscale) skip_dct[5]= 1;
1618 if(!s->chroma_y_shift){ /* 422 */
1619 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;
1620 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;
1621 }
1622 }
1623 }
1624
1625 if(s->avctx->quantizer_noise_shaping){
f073a393
DB
1626 if(!skip_dct[0]) get_visual_weight(weight[0], ptr_y , wrap_y);
1627 if(!skip_dct[1]) get_visual_weight(weight[1], ptr_y + 8, wrap_y);
1628 if(!skip_dct[2]) get_visual_weight(weight[2], ptr_y + dct_offset , wrap_y);
1629 if(!skip_dct[3]) get_visual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y);
1630 if(!skip_dct[4]) get_visual_weight(weight[4], ptr_cb , wrap_c);
1631 if(!skip_dct[5]) get_visual_weight(weight[5], ptr_cr , wrap_c);
3ada94ba 1632 if(!s->chroma_y_shift){ /* 422 */
f073a393
DB
1633 if(!skip_dct[6]) get_visual_weight(weight[6], ptr_cb + (dct_offset>>1), wrap_c);
1634 if(!skip_dct[7]) get_visual_weight(weight[7], ptr_cr + (dct_offset>>1), wrap_c);
3ada94ba
BF
1635 }
1636 memcpy(orig[0], s->block[0], sizeof(DCTELEM)*64*mb_block_count);
1637 }
1638
1639 /* DCT & quantize */
1640 assert(s->out_format!=FMT_MJPEG || s->qscale==8);
1641 {
1642 for(i=0;i<mb_block_count;i++) {
1643 if(!skip_dct[i]){
1644 int overflow;
1645 s->block_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow);
1646 // FIXME we could decide to change to quantizer instead of clipping
1647 // JS: I don't think that would be a good idea it could lower quality instead
1648 // of improve it. Just INTRADC clipping deserves changes in quantizer
1649 if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1650 }else
1651 s->block_last_index[i]= -1;
1652 }
1653 if(s->avctx->quantizer_noise_shaping){
1654 for(i=0;i<mb_block_count;i++) {
1655 if(!skip_dct[i]){
1656 s->block_last_index[i] = dct_quantize_refine(s, s->block[i], weight[i], orig[i], i, s->qscale);
1657 }
1658 }
1659 }
1660
1661 if(s->luma_elim_threshold && !s->mb_intra)
1662 for(i=0; i<4; i++)
1663 dct_single_coeff_elimination(s, i, s->luma_elim_threshold);
1664 if(s->chroma_elim_threshold && !s->mb_intra)
1665 for(i=4; i<mb_block_count; i++)
1666 dct_single_coeff_elimination(s, i, s->chroma_elim_threshold);
1667
1668 if(s->flags & CODEC_FLAG_CBP_RD){
1669 for(i=0;i<mb_block_count;i++) {
1670 if(s->block_last_index[i] == -1)
1671 s->coded_score[i]= INT_MAX/256;
1672 }
1673 }
1674 }
1675
1676 if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
1677 s->block_last_index[4]=
1678 s->block_last_index[5]= 0;
1679 s->block[4][0]=
1680 s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale;
1681 }
1682
1683 //non c quantize code returns incorrect block_last_index FIXME
1684 if(s->alternate_scan && s->dct_quantize != dct_quantize_c){
1685 for(i=0; i<mb_block_count; i++){
1686 int j;
1687 if(s->block_last_index[i]>0){
1688 for(j=63; j>0; j--){
1689 if(s->block[i][ s->intra_scantable.permutated[j] ]) break;
1690 }
1691 s->block_last_index[i]= j;
1692 }
1693 }
1694 }
1695
1696 /* huffman encode */
1697 switch(s->codec_id){ //FIXME funct ptr could be slightly faster
1698 case CODEC_ID_MPEG1VIDEO:
1699 case CODEC_ID_MPEG2VIDEO:
49fb20cb 1700 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
56be950a
AJ
1701 mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1702 break;
3ada94ba 1703 case CODEC_ID_MPEG4:
49fb20cb 1704 if (CONFIG_MPEG4_ENCODER)
674eeb5f
AJ
1705 mpeg4_encode_mb(s, s->block, motion_x, motion_y);
1706 break;
3ada94ba
BF
1707 case CODEC_ID_MSMPEG4V2:
1708 case CODEC_ID_MSMPEG4V3:
1709 case CODEC_ID_WMV1:
49fb20cb 1710 if (CONFIG_MSMPEG4_ENCODER)
3ada94ba
BF
1711 msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1712 break;
1713 case CODEC_ID_WMV2:
49fb20cb 1714 if (CONFIG_WMV2_ENCODER)
3ada94ba
BF
1715 ff_wmv2_encode_mb(s, s->block, motion_x, motion_y);
1716 break;
1717 case CODEC_ID_H261:
49fb20cb 1718 if (CONFIG_H261_ENCODER)
3ada94ba
BF
1719 ff_h261_encode_mb(s, s->block, motion_x, motion_y);
1720 break;
1721 case CODEC_ID_H263:
1722 case CODEC_ID_H263P:
1723 case CODEC_ID_FLV1:
1724 case CODEC_ID_RV10:
1725 case CODEC_ID_RV20:
49fb20cb
AJ
1726 if (CONFIG_H263_ENCODER || CONFIG_H263P_ENCODER ||
1727 CONFIG_FLV_ENCODER || CONFIG_RV10_ENCODER || CONFIG_RV20_ENCODER)
674eeb5f
AJ
1728 h263_encode_mb(s, s->block, motion_x, motion_y);
1729 break;
3ada94ba 1730 case CODEC_ID_MJPEG:
49fb20cb 1731 if (CONFIG_MJPEG_ENCODER)
3ada94ba
BF
1732 ff_mjpeg_encode_mb(s, s->block);
1733 break;
1734 default:
1735 assert(0);
1736 }
1737}
1738
1739static av_always_inline void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
1740{
1741 if (s->chroma_format == CHROMA_420) encode_mb_internal(s, motion_x, motion_y, 8, 6);
1742 else encode_mb_internal(s, motion_x, motion_y, 16, 8);
1743}
1744
3ada94ba
BF
1745static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1746 int i;
1747
1748 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1749
1750 /* mpeg1 */
1751 d->mb_skip_run= s->mb_skip_run;
1752 for(i=0; i<3; i++)
1753 d->last_dc[i]= s->last_dc[i];
1754
1755 /* statistics */
1756 d->mv_bits= s->mv_bits;
1757 d->i_tex_bits= s->i_tex_bits;
1758 d->p_tex_bits= s->p_tex_bits;
1759 d->i_count= s->i_count;
1760 d->f_count= s->f_count;
1761 d->b_count= s->b_count;
1762 d->skip_count= s->skip_count;
1763 d->misc_bits= s->misc_bits;
1764 d->last_bits= 0;
1765
1766 d->mb_skipped= 0;
1767 d->qscale= s->qscale;
1768 d->dquant= s->dquant;
9f175aa0
MN
1769
1770 d->esc3_level_length= s->esc3_level_length;
3ada94ba
BF
1771}
1772
1773static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1774 int i;
1775
1776 memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
1777 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1778
1779 /* mpeg1 */
1780 d->mb_skip_run= s->mb_skip_run;
1781 for(i=0; i<3; i++)
1782 d->last_dc[i]= s->last_dc[i];
1783
1784 /* statistics */
1785 d->mv_bits= s->mv_bits;
1786 d->i_tex_bits= s->i_tex_bits;
1787 d->p_tex_bits= s->p_tex_bits;
1788 d->i_count= s->i_count;
1789 d->f_count= s->f_count;
1790 d->b_count= s->b_count;
1791 d->skip_count= s->skip_count;
1792 d->misc_bits= s->misc_bits;
1793
1794 d->mb_intra= s->mb_intra;
1795 d->mb_skipped= s->mb_skipped;
1796 d->mv_type= s->mv_type;
1797 d->mv_dir= s->mv_dir;
1798 d->pb= s->pb;
1799 if(s->data_partitioning){
1800 d->pb2= s->pb2;
1801 d->tex_pb= s->tex_pb;
1802 }
1803 d->block= s->block;
1804 for(i=0; i<8; i++)
1805 d->block_last_index[i]= s->block_last_index[i];
1806 d->interlaced_dct= s->interlaced_dct;
1807 d->qscale= s->qscale;
9f175aa0
MN
1808
1809 d->esc3_level_length= s->esc3_level_length;
3ada94ba
BF
1810}
1811
1812static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type,
1813 PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
1814 int *dmin, int *next_block, int motion_x, int motion_y)
1815{
1816 int score;
1817 uint8_t *dest_backup[3];
1818
1819 copy_context_before_encode(s, backup, type);
1820
1821 s->block= s->blocks[*next_block];
1822 s->pb= pb[*next_block];
1823 if(s->data_partitioning){
1824 s->pb2 = pb2 [*next_block];
1825 s->tex_pb= tex_pb[*next_block];
1826 }
1827
1828 if(*next_block){
1829 memcpy(dest_backup, s->dest, sizeof(s->dest));
1830 s->dest[0] = s->rd_scratchpad;
1831 s->dest[1] = s->rd_scratchpad + 16*s->linesize;
1832 s->dest[2] = s->rd_scratchpad + 16*s->linesize + 8;
1833 assert(s->linesize >= 32); //FIXME
1834 }
1835
1836 encode_mb(s, motion_x, motion_y);
1837
1838 score= put_bits_count(&s->pb);
1839 if(s->data_partitioning){
1840 score+= put_bits_count(&s->pb2);
1841 score+= put_bits_count(&s->tex_pb);
1842 }
1843
1844 if(s->avctx->mb_decision == FF_MB_DECISION_RD){
1845 MPV_decode_mb(s, s->block);
1846
1847 score *= s->lambda2;
1848 score += sse_mb(s) << FF_LAMBDA_SHIFT;
1849 }
1850
1851 if(*next_block){
1852 memcpy(s->dest, dest_backup, sizeof(s->dest));
1853 }
1854
1855 if(score<*dmin){
1856 *dmin= score;
1857 *next_block^=1;
1858
1859 copy_context_after_encode(best, s, type);
1860 }
1861}
1862
1863static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){
1864 uint32_t *sq = ff_squareTbl + 256;
1865 int acc=0;
1866 int x,y;
1867
1868 if(w==16 && h==16)
1869 return s->dsp.sse[0](NULL, src1, src2, stride, 16);
1870 else if(w==8 && h==8)
1871 return s->dsp.sse[1](NULL, src1, src2, stride, 8);
1872
1873 for(y=0; y<h; y++){
1874 for(x=0; x<w; x++){
1875 acc+= sq[src1[x + y*stride] - src2[x + y*stride]];
1876 }
1877 }
1878
1879 assert(acc>=0);
1880
1881 return acc;
1882}
1883
1884static int sse_mb(MpegEncContext *s){
1885 int w= 16;
1886 int h= 16;
1887
1888 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
1889 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
1890
1891 if(w==16 && h==16)
1892 if(s->avctx->mb_cmp == FF_CMP_NSSE){
1893 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)
1894 +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)
1895 +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);
1896 }else{
1897 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)
1898 +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)
1899 +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);
1900 }
1901 else
1902 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)
1903 +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)
1904 +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);
1905}
1906
1907static int pre_estimate_motion_thread(AVCodecContext *c, void *arg){
3a84713a 1908 MpegEncContext *s= *(void**)arg;
3ada94ba
BF
1909
1910
1911 s->me.pre_pass=1;
1912 s->me.dia_size= s->avctx->pre_dia_size;
1913 s->first_slice_line=1;
1914 for(s->mb_y= s->end_mb_y-1; s->mb_y >= s->start_mb_y; s->mb_y--) {
1915 for(s->mb_x=s->mb_width-1; s->mb_x >=0 ;s->mb_x--) {
1916 ff_pre_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1917 }
1918 s->first_slice_line=0;
1919 }
1920
1921 s->me.pre_pass=0;
1922
1923 return 0;
1924}
1925
1926static int estimate_motion_thread(AVCodecContext *c, void *arg){
3a84713a 1927 MpegEncContext *s= *(void**)arg;
3ada94ba
BF
1928
1929 ff_check_alignment();
1930
1931 s->me.dia_size= s->avctx->dia_size;
1932 s->first_slice_line=1;
1933 for(s->mb_y= s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
1934 s->mb_x=0; //for block init below
1935 ff_init_block_index(s);
1936 for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {
1937 s->block_index[0]+=2;
1938 s->block_index[1]+=2;
1939 s->block_index[2]+=2;
1940 s->block_index[3]+=2;
1941
1942 /* compute motion vector & mb_type and store in context */
9701840b 1943 if(s->pict_type==FF_B_TYPE)
3ada94ba
BF
1944 ff_estimate_b_frame_motion(s, s->mb_x, s->mb_y);
1945 else
1946 ff_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1947 }
1948 s->first_slice_line=0;
1949 }
1950 return 0;
1951}
1952
1953static int mb_var_thread(AVCodecContext *c, void *arg){
3a84713a 1954 MpegEncContext *s= *(void**)arg;
3ada94ba
BF
1955 int mb_x, mb_y;
1956
1957 ff_check_alignment();
1958
1959 for(mb_y=s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
1960 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
1961 int xx = mb_x * 16;
1962 int yy = mb_y * 16;
1963 uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
1964 int varc;
1965 int sum = s->dsp.pix_sum(pix, s->linesize);
1966
1967 varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
1968
1969 s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
1970 s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
1971 s->me.mb_var_sum_temp += varc;
1972 }
1973 }
1974 return 0;
1975}
1976
1977static void write_slice_end(MpegEncContext *s){
49fb20cb 1978 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4){
3ada94ba
BF
1979 if(s->partitioned_frame){
1980 ff_mpeg4_merge_partitions(s);
1981 }
1982
1983 ff_mpeg4_stuffing(&s->pb);
49fb20cb 1984 }else if(CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG){
3ada94ba
BF
1985 ff_mjpeg_encode_stuffing(&s->pb);
1986 }
1987
1988 align_put_bits(&s->pb);
1989 flush_put_bits(&s->pb);
1990
1991 if((s->flags&CODEC_FLAG_PASS1) && !s->partitioned_frame)
1992 s->misc_bits+= get_bits_diff(s);
1993}
1994
1995static int encode_thread(AVCodecContext *c, void *arg){
3a84713a 1996 MpegEncContext *s= *(void**)arg;
3ada94ba 1997 int mb_x, mb_y, pdif = 0;
ec7e2582 1998 int chr_h= 16>>s->chroma_y_shift;
3ada94ba
BF
1999 int i, j;
2000 MpegEncContext best_s, backup_s;
2001 uint8_t bit_buf[2][MAX_MB_BYTES];
2002 uint8_t bit_buf2[2][MAX_MB_BYTES];
2003 uint8_t bit_buf_tex[2][MAX_MB_BYTES];
2004 PutBitContext pb[2], pb2[2], tex_pb[2];
2005//printf("%d->%d\n", s->resync_mb_y, s->end_mb_y);
2006
2007 ff_check_alignment();
2008
2009 for(i=0; i<2; i++){
2010 init_put_bits(&pb [i], bit_buf [i], MAX_MB_BYTES);
2011 init_put_bits(&pb2 [i], bit_buf2 [i], MAX_MB_BYTES);
2012 init_put_bits(&tex_pb[i], bit_buf_tex[i], MAX_MB_BYTES);
2013 }
2014
2015 s->last_bits= put_bits_count(&s->pb);
2016 s->mv_bits=0;
2017 s->misc_bits=0;
2018 s->i_tex_bits=0;
2019 s->p_tex_bits=0;
2020 s->i_count=0;
2021 s->f_count=0;
2022 s->b_count=0;
2023 s->skip_count=0;
2024
2025 for(i=0; i<3; i++){
2026 /* init last dc values */
2027 /* note: quant matrix value (8) is implied here */
2028 s->last_dc[i] = 128 << s->intra_dc_precision;
2029
2030 s->current_picture.error[i] = 0;
2031 }
2032 s->mb_skip_run = 0;
2033 memset(s->last_mv, 0, sizeof(s->last_mv));
2034
2035 s->last_mv_dir = 0;
2036
2037 switch(s->codec_id){
2038 case CODEC_ID_H263:
2039 case CODEC_ID_H263P:
2040 case CODEC_ID_FLV1:
49fb20cb 2041 if (CONFIG_H263_ENCODER || CONFIG_H263P_ENCODER || CONFIG_FLV_ENCODER)
674eeb5f 2042 s->gob_index = ff_h263_get_gob_height(s);
3ada94ba
BF
2043 break;
2044 case CODEC_ID_MPEG4:
49fb20cb 2045 if(CONFIG_MPEG4_ENCODER && s->partitioned_frame)
3ada94ba
BF
2046 ff_mpeg4_init_partitions(s);
2047 break;
2048 }
2049
2050 s->resync_mb_x=0;
2051 s->resync_mb_y=0;
2052 s->first_slice_line = 1;
2053 s->ptr_lastgob = s->pb.buf;
2054 for(mb_y= s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2055// printf("row %d at %X\n", s->mb_y, (int)s);
2056 s->mb_x=0;
2057 s->mb_y= mb_y;
2058
2059 ff_set_qscale(s, s->qscale);
2060 ff_init_block_index(s);
2061
2062 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2063 int xy= mb_y*s->mb_stride + mb_x; // removed const, H261 needs to adjust this
2064 int mb_type= s->mb_type[xy];
2065// int d;
2066 int dmin= INT_MAX;
2067 int dir;
2068
2069 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < MAX_MB_BYTES){
2070 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2071 return -1;
2072 }
2073 if(s->data_partitioning){
2074 if( s->pb2 .buf_end - s->pb2 .buf - (put_bits_count(&s-> pb2)>>3) < MAX_MB_BYTES
2075 || s->tex_pb.buf_end - s->tex_pb.buf - (put_bits_count(&s->tex_pb )>>3) < MAX_MB_BYTES){
2076 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2077 return -1;
2078 }
2079 }
2080
2081 s->mb_x = mb_x;
2082 s->mb_y = mb_y; // moved into loop, can get changed by H.261
2083 ff_update_block_index(s);
2084
49fb20cb 2085 if(CONFIG_H261_ENCODER && s->codec_id == CODEC_ID_H261){
3ada94ba
BF
2086 ff_h261_reorder_mb_index(s);
2087 xy= s->mb_y*s->mb_stride + s->mb_x;
2088 mb_type= s->mb_type[xy];
2089 }
2090
2091 /* write gob / video packet header */
2092 if(s->rtp_mode){
2093 int current_packet_size, is_gob_start;
2094
2095 current_packet_size= ((put_bits_count(&s->pb)+7)>>3) - (s->ptr_lastgob - s->pb.buf);
2096
2097 is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0;
2098
2099 if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1;
2100
2101 switch(s->codec_id){
2102 case CODEC_ID_H263:
2103 case CODEC_ID_H263P:
2104 if(!s->h263_slice_structured)
2105 if(s->mb_x || s->mb_y%s->gob_index) is_gob_start=0;
2106 break;
2107 case CODEC_ID_MPEG2VIDEO:
2108 if(s->mb_x==0 && s->mb_y!=0) is_gob_start=1;
2109 case CODEC_ID_MPEG1VIDEO:
2110 if(s->mb_skip_run) is_gob_start=0;
2111 break;
2112 }
2113
2114 if(is_gob_start){
2115 if(s->start_mb_y != mb_y || mb_x!=0){
2116 write_slice_end(s);
2117
49fb20cb 2118 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){
3ada94ba
BF
2119 ff_mpeg4_init_partitions(s);
2120 }
2121 }
2122
2123 assert((put_bits_count(&s->pb)&7) == 0);
fb53b4a0 2124 current_packet_size= put_bits_ptr(&s->pb) - s->ptr_lastgob;
3ada94ba
BF
2125
2126 if(s->avctx->error_rate && s->resync_mb_x + s->resync_mb_y > 0){
2127 int r= put_bits_count(&s->pb)/8 + s->picture_number + 16 + s->mb_x + s->mb_y;
2128 int d= 100 / s->avctx->error_rate;
2129 if(r % d == 0){
2130 current_packet_size=0;
2131#ifndef ALT_BITSTREAM_WRITER
2132 s->pb.buf_ptr= s->ptr_lastgob;
2133#endif
fb53b4a0 2134 assert(put_bits_ptr(&s->pb) == s->ptr_lastgob);
3ada94ba
BF
2135 }
2136 }
2137
2138 if (s->avctx->rtp_callback){
2139 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width + mb_x - s->resync_mb_x;
2140 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, current_packet_size, number_mb);
2141 }
2142
2143 switch(s->codec_id){
2144 case CODEC_ID_MPEG4:
49fb20cb 2145 if (CONFIG_MPEG4_ENCODER) {
674eeb5f
AJ
2146 ff_mpeg4_encode_video_packet_header(s);
2147 ff_mpeg4_clean_buffers(s);
eb75a698 2148 }
3ada94ba
BF
2149 break;
2150 case CODEC_ID_MPEG1VIDEO:
2151 case CODEC_ID_MPEG2VIDEO:
49fb20cb 2152 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) {
56be950a
AJ
2153 ff_mpeg1_encode_slice_header(s);
2154 ff_mpeg1_clean_buffers(s);
a6bc5731 2155 }
3ada94ba
BF
2156 break;
2157 case CODEC_ID_H263:
2158 case CODEC_ID_H263P:
49fb20cb 2159 if (CONFIG_H263_ENCODER || CONFIG_H263P_ENCODER)
674eeb5f 2160 h263_encode_gob_header(s, mb_y);
3ada94ba
BF
2161 break;
2162 }
2163
2164 if(s->flags&CODEC_FLAG_PASS1){
2165 int bits= put_bits_count(&s->pb);
2166 s->misc_bits+= bits - s->last_bits;
2167 s->last_bits= bits;
2168 }
2169
2170 s->ptr_lastgob += current_packet_size;
2171 s->first_slice_line=1;
2172 s->resync_mb_x=mb_x;
2173 s->resync_mb_y=mb_y;
2174 }
2175 }
2176
2177 if( (s->resync_mb_x == s->mb_x)
2178 && s->resync_mb_y+1 == s->mb_y){
2179 s->first_slice_line=0;
2180 }
2181
2182 s->mb_skipped=0;
2183 s->dquant=0; //only for QP_RD
2184
2185 if(mb_type & (mb_type-1) || (s->flags & CODEC_FLAG_QP_RD)){ // more than 1 MB type possible or CODEC_FLAG_QP_RD
2186 int next_block=0;
2187 int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
2188
2189 copy_context_before_encode(&backup_s, s, -1);
2190 backup_s.pb= s->pb;
2191 best_s.data_partitioning= s->data_partitioning;
2192 best_s.partitioned_frame= s->partitioned_frame;
2193 if(s->data_partitioning){
2194 backup_s.pb2= s->pb2;
2195 backup_s.tex_pb= s->tex_pb;
2196 }
2197
2198 if(mb_type&CANDIDATE_MB_TYPE_INTER){
2199 s->mv_dir = MV_DIR_FORWARD;
2200 s->mv_type = MV_TYPE_16X16;
2201 s->mb_intra= 0;
2202 s->mv[0][0][0] = s->p_mv_table[xy][0];
2203 s->mv[0][0][1] = s->p_mv_table[xy][1];
2204 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER, pb, pb2, tex_pb,
2205 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2206 }
2207 if(mb_type&CANDIDATE_MB_TYPE_INTER_I){
2208 s->mv_dir = MV_DIR_FORWARD;
2209 s->mv_type = MV_TYPE_FIELD;
2210 s->mb_intra= 0;
2211 for(i=0; i<2; i++){
2212 j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2213 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2214 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2215 }
2216 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER_I, pb, pb2, tex_pb,
2217 &dmin, &next_block, 0, 0);
2218 }
2219 if(mb_type&CANDIDATE_MB_TYPE_SKIPPED){
2220 s->mv_dir = MV_DIR_FORWARD;
2221 s->mv_type = MV_TYPE_16X16;
2222 s->mb_intra= 0;
2223 s->mv[0][0][0] = 0;
2224 s->mv[0][0][1] = 0;
2225 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_SKIPPED, pb, pb2, tex_pb,
2226 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2227 }
2228 if(mb_type&CANDIDATE_MB_TYPE_INTER4V){
2229 s->mv_dir = MV_DIR_FORWARD;
2230 s->mv_type = MV_TYPE_8X8;
2231 s->mb_intra= 0;
2232 for(i=0; i<4; i++){
2233 s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2234 s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2235 }
2236 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER4V, pb, pb2, tex_pb,
2237 &dmin, &next_block, 0, 0);
2238 }
2239 if(mb_type&CANDIDATE_MB_TYPE_FORWARD){
2240 s->mv_dir = MV_DIR_FORWARD;
2241 s->mv_type = MV_TYPE_16X16;
2242 s->mb_intra= 0;
2243 s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2244 s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2245 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD, pb, pb2, tex_pb,
2246 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2247 }
2248 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD){
2249 s->mv_dir = MV_DIR_BACKWARD;
2250 s->mv_type = MV_TYPE_16X16;
2251 s->mb_intra= 0;
2252 s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2253 s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2254 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD, pb, pb2, tex_pb,
2255 &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
2256 }
2257 if(mb_type&CANDIDATE_MB_TYPE_BIDIR){
2258 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2259 s->mv_type = MV_TYPE_16X16;
2260 s->mb_intra= 0;
2261 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2262 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2263 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2264 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2265 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb,
2266 &dmin, &next_block, 0, 0);
2267 }
2268 if(mb_type&CANDIDATE_MB_TYPE_FORWARD_I){
2269 s->mv_dir = MV_DIR_FORWARD;
2270 s->mv_type = MV_TYPE_FIELD;
2271 s->mb_intra= 0;
2272 for(i=0; i<2; i++){
2273 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2274 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2275 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2276 }
2277 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD_I, pb, pb2, tex_pb,
2278 &dmin, &next_block, 0, 0);
2279 }
2280 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD_I){
2281 s->mv_dir = MV_DIR_BACKWARD;
2282 s->mv_type = MV_TYPE_FIELD;
2283 s->mb_intra= 0;
2284 for(i=0; i<2; i++){
2285 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2286 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2287 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2288 }
2289 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD_I, pb, pb2, tex_pb,
2290 &dmin, &next_block, 0, 0);
2291 }
2292 if(mb_type&CANDIDATE_MB_TYPE_BIDIR_I){
2293 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2294 s->mv_type = MV_TYPE_FIELD;
2295 s->mb_intra= 0;
2296 for(dir=0; dir<2; dir++){
2297 for(i=0; i<2; i++){
2298 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2299 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2300 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2301 }
2302 }
2303 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR_I, pb, pb2, tex_pb,
2304 &dmin, &next_block, 0, 0);
2305 }
2306 if(mb_type&CANDIDATE_MB_TYPE_INTRA){
2307 s->mv_dir = 0;
2308 s->mv_type = MV_TYPE_16X16;
2309 s->mb_intra= 1;
2310 s->mv[0][0][0] = 0;
2311 s->mv[0][0][1] = 0;
2312 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTRA, pb, pb2, tex_pb,
2313 &dmin, &next_block, 0, 0);
2314 if(s->h263_pred || s->h263_aic){
2315 if(best_s.mb_intra)
2316 s->mbintra_table[mb_x + mb_y*s->mb_stride]=1;
2317 else
2318 ff_clean_intra_table_entries(s); //old mode?
2319 }
2320 }
2321
2322 if((s->flags & CODEC_FLAG_QP_RD) && dmin < INT_MAX){
2323 if(best_s.mv_type==MV_TYPE_16X16){ //FIXME move 4mv after QPRD
2324 const int last_qp= backup_s.qscale;
2325 int qpi, qp, dc[6];
2326 DCTELEM ac[6][16];
2327 const int mvdir= (best_s.mv_dir&MV_DIR_BACKWARD) ? 1 : 0;
2328 static const int dquant_tab[4]={-1,1,-2,2};
2329
2330 assert(backup_s.dquant == 0);
2331
2332 //FIXME intra
2333 s->mv_dir= best_s.mv_dir;
2334 s->mv_type = MV_TYPE_16X16;
2335 s->mb_intra= best_s.mb_intra;
2336 s->mv[0][0][0] = best_s.mv[0][0][0];
2337 s->mv[0][0][1] = best_s.mv[0][0][1];
2338 s->mv[1][0][0] = best_s.mv[1][0][0];
2339 s->mv[1][0][1] = best_s.mv[1][0][1];
2340
9701840b 2341 qpi = s->pict_type == FF_B_TYPE ? 2 : 0;
3ada94ba
BF
2342 for(; qpi<4; qpi++){
2343 int dquant= dquant_tab[qpi];
2344 qp= last_qp + dquant;
2345 if(qp < s->avctx->qmin || qp > s->avctx->qmax)
2346 continue;
2347 backup_s.dquant= dquant;
2348 if(s->mb_intra && s->dc_val[0]){
2349 for(i=0; i<6; i++){
2350 dc[i]= s->dc_val[0][ s->block_index[i] ];
2351 memcpy(ac[i], s->ac_val[0][s->block_index[i]], sizeof(DCTELEM)*16);
2352 }
2353 }
2354
2355 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2356 &dmin, &next_block, s->mv[mvdir][0][0], s->mv[mvdir][0][1]);
2357 if(best_s.qscale != qp){
2358 if(s->mb_intra && s->dc_val[0]){
2359 for(i=0; i<6; i++){
2360 s->dc_val[0][ s->block_index[i] ]= dc[i];
2361 memcpy(s->ac_val[0][s->block_index[i]], ac[i], sizeof(DCTELEM)*16);
2362 }
2363 }
2364 }
2365 }
2366 }
2367 }
49fb20cb 2368 if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT){
3ada94ba
BF
2369 int mx= s->b_direct_mv_table[xy][0];
2370 int my= s->b_direct_mv_table[xy][1];
2371
2372 backup_s.dquant = 0;
2373 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2374 s->mb_intra= 0;
2375 ff_mpeg4_set_direct_mv(s, mx, my);
2376 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2377 &dmin, &next_block, mx, my);
2378 }
49fb20cb 2379 if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT0){
3ada94ba
BF
2380 backup_s.dquant = 0;
2381 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2382 s->mb_intra= 0;
2383 ff_mpeg4_set_direct_mv(s, 0, 0);
2384 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2385 &dmin, &next_block, 0, 0);
2386 }
2387 if(!best_s.mb_intra && s->flags2&CODEC_FLAG2_SKIP_RD){
2388 int coded=0;
2389 for(i=0; i<6; i++)
2390 coded |= s->block_last_index[i];
2391 if(coded){
2392 int mx,my;
2393 memcpy(s->mv, best_s.mv, sizeof(s->mv));
49fb20cb 2394 if(CONFIG_MPEG4_ENCODER && best_s.mv_dir & MV_DIRECT){
3ada94ba
BF
2395 mx=my=0; //FIXME find the one we actually used
2396 ff_mpeg4_set_direct_mv(s, mx, my);
2397 }else if(best_s.mv_dir&MV_DIR_BACKWARD){
2398 mx= s->mv[1][0][0];
2399 my= s->mv[1][0][1];
2400 }else{
2401 mx= s->mv[0][0][0];
2402 my= s->mv[0][0][1];
2403 }
2404
2405 s->mv_dir= best_s.mv_dir;
2406 s->mv_type = best_s.mv_type;
2407 s->mb_intra= 0;
2408/* s->mv[0][0][0] = best_s.mv[0][0][0];
2409 s->mv[0][0][1] = best_s.mv[0][0][1];
2410 s->mv[1][0][0] = best_s.mv[1][0][0];
2411 s->mv[1][0][1] = best_s.mv[1][0][1];*/
2412 backup_s.dquant= 0;
2413 s->skipdct=1;
2414 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2415 &dmin, &next_block, mx, my);
2416 s->skipdct=0;
2417 }
2418 }
2419
2420 s->current_picture.qscale_table[xy]= best_s.qscale;
2421
2422 copy_context_after_encode(s, &best_s, -1);
2423
2424 pb_bits_count= put_bits_count(&s->pb);
2425 flush_put_bits(&s->pb);
2426 ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
2427 s->pb= backup_s.pb;
2428
2429 if(s->data_partitioning){
2430 pb2_bits_count= put_bits_count(&s->pb2);
2431 flush_put_bits(&s->pb2);
2432 ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
2433 s->pb2= backup_s.pb2;
2434
2435 tex_pb_bits_count= put_bits_count(&s->tex_pb);
2436 flush_put_bits(&s->tex_pb);
2437 ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
2438 s->tex_pb= backup_s.tex_pb;
2439 }
2440 s->last_bits= put_bits_count(&s->pb);
2441
49fb20cb 2442 if (CONFIG_ANY_H263_ENCODER &&
9701840b 2443 s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
3ada94ba
BF
2444 ff_h263_update_motion_val(s);
2445
2446 if(next_block==0){ //FIXME 16 vs linesize16
2447 s->dsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad , s->linesize ,16);
2448 s->dsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize , s->uvlinesize, 8);
2449 s->dsp.put_pixels_tab[1][0](s->dest[2], s->rd_scratchpad + 16*s->linesize + 8, s->uvlinesize, 8);
2450 }
2451
2452 if(s->avctx->mb_decision == FF_MB_DECISION_BITS)
2453 MPV_decode_mb(s, s->block);
2454 } else {
2455 int motion_x = 0, motion_y = 0;
2456 s->mv_type=MV_TYPE_16X16;
2457 // only one MB-Type possible
2458
2459 switch(mb_type){
2460 case CANDIDATE_MB_TYPE_INTRA:
2461 s->mv_dir = 0;
2462 s->mb_intra= 1;
2463 motion_x= s->mv[0][0][0] = 0;
2464 motion_y= s->mv[0][0][1] = 0;
2465 break;
2466 case CANDIDATE_MB_TYPE_INTER:
2467 s->mv_dir = MV_DIR_FORWARD;
2468 s->mb_intra= 0;
2469 motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
2470 motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
2471 break;
2472 case CANDIDATE_MB_TYPE_INTER_I:
2473 s->mv_dir = MV_DIR_FORWARD;
2474 s->mv_type = MV_TYPE_FIELD;
2475 s->mb_intra= 0;
2476 for(i=0; i<2; i++){
2477 j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2478 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2479 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2480 }
2481 break;
2482 case CANDIDATE_MB_TYPE_INTER4V:
2483 s->mv_dir = MV_DIR_FORWARD;
2484 s->mv_type = MV_TYPE_8X8;
2485 s->mb_intra= 0;
2486 for(i=0; i<4; i++){
2487 s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2488 s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2489 }
2490 break;
2491 case CANDIDATE_MB_TYPE_DIRECT:
49fb20cb 2492 if (CONFIG_MPEG4_ENCODER) {
674eeb5f
AJ
2493 s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2494 s->mb_intra= 0;
2495 motion_x=s->b_direct_mv_table[xy][0];
2496 motion_y=s->b_direct_mv_table[xy][1];
2497 ff_mpeg4_set_direct_mv(s, motion_x, motion_y);
eb75a698 2498 }
3ada94ba
BF
2499 break;
2500 case CANDIDATE_MB_TYPE_DIRECT0:
49fb20cb 2501 if (CONFIG_MPEG4_ENCODER) {
674eeb5f
AJ
2502 s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2503 s->mb_intra= 0;
2504 ff_mpeg4_set_direct_mv(s, 0, 0);
eb75a698 2505 }
3ada94ba
BF
2506 break;
2507 case CANDIDATE_MB_TYPE_BIDIR:
2508 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2509 s->mb_intra= 0;
2510 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2511 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2512 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2513 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2514 break;
2515 case CANDIDATE_MB_TYPE_BACKWARD:
2516 s->mv_dir = MV_DIR_BACKWARD;
2517 s->mb_intra= 0;
2518 motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2519 motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2520 break;
2521 case CANDIDATE_MB_TYPE_FORWARD:
2522 s->mv_dir = MV_DIR_FORWARD;
2523 s->mb_intra= 0;
2524 motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2525 motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2526// printf(" %d %d ", motion_x, motion_y);
2527 break;
2528 case CANDIDATE_MB_TYPE_FORWARD_I:
2529 s->mv_dir = MV_DIR_FORWARD;
2530 s->mv_type = MV_TYPE_FIELD;
2531 s->mb_intra= 0;
2532 for(i=0; i<2; i++){
2533 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2534 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2535 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2536 }
2537 break;
2538 case CANDIDATE_MB_TYPE_BACKWARD_I:
2539 s->mv_dir = MV_DIR_BACKWARD;
2540 s->mv_type = MV_TYPE_FIELD;
2541 s->mb_intra= 0;
2542 for(i=0; i<2; i++){
2543 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2544 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2545 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2546 }
2547 break;
2548 case CANDIDATE_MB_TYPE_BIDIR_I:
2549 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2550 s->mv_type = MV_TYPE_FIELD;
2551 s->mb_intra= 0;
2552 for(dir=0; dir<2; dir++){
2553 for(i=0; i<2; i++){
2554 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2555 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2556 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2557 }
2558 }
2559 break;
2560 default:
2561 av_log(s->avctx, AV_LOG_ERROR, "illegal MB type\n");
2562 }
2563
2564 encode_mb(s, motion_x, motion_y);
2565
2566 // RAL: Update last macroblock type
2567 s->last_mv_dir = s->mv_dir;
2568
49fb20cb 2569 if (CONFIG_ANY_H263_ENCODER &&
9701840b 2570 s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
3ada94ba
BF
2571 ff_h263_update_motion_val(s);
2572
2573 MPV_decode_mb(s, s->block);
2574 }
2575
2576 /* clean the MV table in IPS frames for direct mode in B frames */
2577 if(s->mb_intra /* && I,P,S_TYPE */){
2578 s->p_mv_table[xy][0]=0;
2579 s->p_mv_table[xy][1]=0;
2580 }
2581
2582 if(s->flags&CODEC_FLAG_PSNR){
2583 int w= 16;
2584 int h= 16;
2585
2586 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
2587 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
2588
2589 s->current_picture.error[0] += sse(
2590 s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16,
2591 s->dest[0], w, h, s->linesize);
2592 s->current_picture.error[1] += sse(
ec7e2582
BC
2593 s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*chr_h,
2594 s->dest[1], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
3ada94ba 2595 s->current_picture.error[2] += sse(
ec7e2582
BC
2596 s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*chr_h,
2597 s->dest[2], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
3ada94ba
BF
2598 }
2599 if(s->loop_filter){
49fb20cb 2600 if(CONFIG_ANY_H263_ENCODER && s->out_format == FMT_H263)
3ada94ba
BF
2601 ff_h263_loop_filter(s);
2602 }
2603//printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, put_bits_count(&s->pb));
2604 }
2605 }
2606
2607 //not beautiful here but we must write it before flushing so it has to be here
49fb20cb 2608 if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == FF_I_TYPE)
3ada94ba
BF
2609 msmpeg4_encode_ext_header(s);
2610
2611 write_slice_end(s);
2612
2613 /* Send the last GOB if RTP */
2614 if (s->avctx->rtp_callback) {
2615 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width - s->resync_mb_x;
fb53b4a0 2616 pdif = put_bits_ptr(&s->pb) - s->ptr_lastgob;
3ada94ba
BF
2617 /* Call the RTP callback to send the last GOB */
2618 emms_c();
2619 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, pdif, number_mb);
2620 }
2621
2622 return 0;
2623}
2624
2625#define MERGE(field) dst->field += src->field; src->field=0
2626static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src){
2627 MERGE(me.scene_change_score);
2628 MERGE(me.mc_mb_var_sum_temp);
2629 MERGE(me.mb_var_sum_temp);
2630}
2631
2632static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src){
2633 int i;
2634
2635 MERGE(dct_count[0]); //note, the other dct vars are not part of the context
2636 MERGE(dct_count[1]);
2637 MERGE(mv_bits);
2638 MERGE(i_tex_bits);
2639 MERGE(p_tex_bits);
2640 MERGE(i_count);
2641 MERGE(f_count);
2642 MERGE(b_count);
2643 MERGE(skip_count);
2644 MERGE(misc_bits);
2645 MERGE(error_count);
2646 MERGE(padding_bug_score);
2647 MERGE(current_picture.error[0]);
2648 MERGE(current_picture.error[1]);
2649 MERGE(current_picture.error[2]);
2650
2651 if(dst->avctx->noise_reduction){
2652 for(i=0; i<64; i++){
2653 MERGE(dct_error_sum[0][i]);
2654 MERGE(dct_error_sum[1][i]);
2655 }
2656 }
2657
2658 assert(put_bits_count(&src->pb) % 8 ==0);
2659 assert(put_bits_count(&dst->pb) % 8 ==0);
2660 ff_copy_bits(&dst->pb, src->pb.buf, put_bits_count(&src->pb));
2661 flush_put_bits(&dst->pb);
2662}
2663
2664static int estimate_qp(MpegEncContext *s, int dry_run){
2665 if (s->next_lambda){
2666 s->current_picture_ptr->quality=
2667 s->current_picture.quality = s->next_lambda;
2668 if(!dry_run) s->next_lambda= 0;
2669 } else if (!s->fixed_qscale) {
2670 s->current_picture_ptr->quality=
2671 s->current_picture.quality = ff_rate_estimate_qscale(s, dry_run);
2672 if (s->current_picture.quality < 0)
2673 return -1;
2674 }
2675
2676 if(s->adaptive_quant){
2677 switch(s->codec_id){
2678 case CODEC_ID_MPEG4:
49fb20cb 2679 if (CONFIG_MPEG4_ENCODER)
674eeb5f 2680 ff_clean_mpeg4_qscales(s);
3ada94ba
BF
2681 break;
2682 case CODEC_ID_H263:
2683 case CODEC_ID_H263P:
2684 case CODEC_ID_FLV1:
49fb20cb 2685 if (CONFIG_H263_ENCODER||CONFIG_H263P_ENCODER||CONFIG_FLV_ENCODER)
674eeb5f 2686 ff_clean_h263_qscales(s);
3ada94ba
BF
2687 break;
2688 }
2689
2690 s->lambda= s->lambda_table[0];
2691 //FIXME broken
2692 }else
2693 s->lambda= s->current_picture.quality;
2694//printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality);
2695 update_qscale(s);
2696 return 0;
2697}
2698
7da31a80
AJ
2699/* must be called before writing the header */
2700static void set_frame_distances(MpegEncContext * s){
2701 assert(s->current_picture_ptr->pts != AV_NOPTS_VALUE);
2702 s->time= s->current_picture_ptr->pts*s->avctx->time_base.num;
2703
9701840b 2704 if(s->pict_type==FF_B_TYPE){
7da31a80
AJ
2705 s->pb_time= s->pp_time - (s->last_non_b_time - s->time);
2706 assert(s->pb_time > 0 && s->pb_time < s->pp_time);
2707 }else{
2708 s->pp_time= s->time - s->last_non_b_time;
2709 s->last_non_b_time= s->time;
2710 assert(s->picture_number==0 || s->pp_time > 0);
2711 }
2712}
2713
3ada94ba
BF
2714static int encode_picture(MpegEncContext *s, int picture_number)
2715{
2716 int i;
2717 int bits;
2718
2719 s->picture_number = picture_number;
2720
2721 /* Reset the average MB variance */
2722 s->me.mb_var_sum_temp =
2723 s->me.mc_mb_var_sum_temp = 0;
2724
2725 /* we need to initialize some time vars before we can encode b-frames */
2726 // RAL: Condition added for MPEG1VIDEO
2727 if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->h263_msmpeg4))
7da31a80 2728 set_frame_distances(s);
49fb20cb 2729 if(CONFIG_MPEG4_ENCODER && s->codec_id == CODEC_ID_MPEG4)
7da31a80 2730 ff_set_mpeg4_time(s);
3ada94ba
BF
2731
2732 s->me.scene_change_score=0;
2733
e6dba5df 2734// s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME rate distortion
3ada94ba 2735
9701840b 2736 if(s->pict_type==FF_I_TYPE){
3ada94ba
BF
2737 if(s->msmpeg4_version >= 3) s->no_rounding=1;
2738 else s->no_rounding=0;
9701840b 2739 }else if(s->pict_type!=FF_B_TYPE){
3ada94ba
BF
2740 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
2741 s->no_rounding ^= 1;
2742 }
2743
2744 if(s->flags & CODEC_FLAG_PASS2){
2745 if (estimate_qp(s,1) < 0)
2746 return -1;
2747 ff_get_2pass_fcode(s);
2748 }else if(!(s->flags & CODEC_FLAG_QSCALE)){
9701840b 2749 if(s->pict_type==FF_B_TYPE)
3ada94ba
BF
2750 s->lambda= s->last_lambda_for[s->pict_type];
2751 else
2752 s->lambda= s->last_lambda_for[s->last_non_b_pict_type];
2753 update_qscale(s);
2754 }
2755
2756 s->mb_intra=0; //for the rate distortion & bit compare functions
2757 for(i=1; i<s->avctx->thread_count; i++){
2758 ff_update_duplicate_context(s->thread_context[i], s);
2759 }
2760
719f3702
MN
2761 if(ff_init_me(s)<0)
2762 return -1;
3ada94ba
BF
2763
2764 /* Estimate motion for every MB */
9701840b 2765 if(s->pict_type != FF_I_TYPE){
3ada94ba
BF
2766 s->lambda = (s->lambda * s->avctx->me_penalty_compensation + 128)>>8;
2767 s->lambda2= (s->lambda2* (int64_t)s->avctx->me_penalty_compensation + 128)>>8;
9701840b
AJ
2768 if(s->pict_type != FF_B_TYPE && s->avctx->me_threshold==0){
2769 if((s->avctx->pre_me && s->last_non_b_pict_type==FF_I_TYPE) || s->avctx->pre_me==2){
3a84713a 2770 s->avctx->execute(s->avctx, pre_estimate_motion_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count, sizeof(void*));
3ada94ba
BF
2771 }
2772 }
2773
3a84713a 2774 s->avctx->execute(s->avctx, estimate_motion_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count, sizeof(void*));
9701840b 2775 }else /* if(s->pict_type == FF_I_TYPE) */{
3ada94ba
BF
2776 /* I-Frame */
2777 for(i=0; i<s->mb_stride*s->mb_height; i++)
2778 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2779
2780 if(!s->fixed_qscale){
2781 /* finding spatial complexity for I-frame rate control */
3a84713a 2782 s->avctx->execute(s->avctx, mb_var_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count, sizeof(void*));
3ada94ba
BF
2783 }
2784 }
2785 for(i=1; i<s->avctx->thread_count; i++){
2786 merge_context_after_me(s, s->thread_context[i]);
2787 }
2788 s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum= s->me.mc_mb_var_sum_temp;
2789 s->current_picture. mb_var_sum= s->current_picture_ptr-> mb_var_sum= s->me. mb_var_sum_temp;
2790 emms_c();
2791
9701840b
AJ
2792 if(s->me.scene_change_score > s->avctx->scenechange_threshold && s->pict_type == FF_P_TYPE){
2793 s->pict_type= FF_I_TYPE;
3ada94ba
BF
2794 for(i=0; i<s->mb_stride*s->mb_height; i++)
2795 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2796//printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum);
2797 }
2798
2799 if(!s->umvplus){
9701840b 2800 if(s->pict_type==FF_P_TYPE || s->pict_type==FF_S_TYPE) {
3ada94ba
BF
2801 s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER);
2802
2803 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2804 int a,b;
2805 a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select
2806 b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I);
159ef4b0 2807 s->f_code= FFMAX3(s->f_code, a, b);
3ada94ba
BF
2808 }
2809
2810 ff_fix_long_p_mvs(s);
2811 ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0);
2812 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2813 int j;
2814 for(i=0; i<2; i++){
2815 for(j=0; j<2; j++)
2816 ff_fix_long_mvs(s, s->p_field_select_table[i], j,
2817 s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0);
2818 }
2819 }
2820 }
2821
9701840b 2822 if(s->pict_type==FF_B_TYPE){
3ada94ba
BF
2823 int a, b;
2824
2825 a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD);
2826 b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2827 s->f_code = FFMAX(a, b);
2828
2829 a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD);
2830 b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2831 s->b_code = FFMAX(a, b);
2832
2833 ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1);
2834 ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1);
2835 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2836 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2837 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2838 int dir, j;
2839 for(dir=0; dir<2; dir++){
2840 for(i=0; i<2; i++){
2841 for(j=0; j<2; j++){
2842 int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I)
2843 : (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I);
2844 ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j,
2845 s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1);
2846 }
2847 }
2848 }
2849 }
2850 }
2851 }
2852
2853 if (estimate_qp(s, 0) < 0)
2854 return -1;
2855
9701840b 2856 if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==FF_I_TYPE && !(s->flags & CODEC_FLAG_QSCALE))
3ada94ba
BF
2857 s->qscale= 3; //reduce clipping problems
2858
2859 if (s->out_format == FMT_MJPEG) {
2860 /* for mjpeg, we do include qscale in the matrix */
2861 s->intra_matrix[0] = ff_mpeg1_default_intra_matrix[0];
2862 for(i=1;i<64;i++){
2863 int j= s->dsp.idct_permutation[i];
2864
2865 s->intra_matrix[j] = av_clip_uint8((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
2866 }
69cea75f 2867 ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
3ada94ba
BF
2868 s->intra_matrix, s->intra_quant_bias, 8, 8, 1);
2869 s->qscale= 8;
2870 }
2871
2872 //FIXME var duplication
2873 s->current_picture_ptr->key_frame=
9701840b 2874 s->current_picture.key_frame= s->pict_type == FF_I_TYPE; //FIXME pic_ptr
3ada94ba
BF
2875 s->current_picture_ptr->pict_type=
2876 s->current_picture.pict_type= s->pict_type;
2877
2878 if(s->current_picture.key_frame)
2879 s->picture_in_gop_number=0;
2880
2881 s->last_bits= put_bits_count(&s->pb);
2882 switch(s->out_format) {
2883 case FMT_MJPEG:
49fb20cb 2884 if (CONFIG_MJPEG_ENCODER)
3ada94ba
BF
2885 ff_mjpeg_encode_picture_header(s);
2886 break;
2887 case FMT_H261:
49fb20cb 2888 if (CONFIG_H261_ENCODER)
3ada94ba
BF
2889 ff_h261_encode_picture_header(s, picture_number);
2890 break;
2891 case FMT_H263:
49fb20cb 2892 if (CONFIG_WMV2_ENCODER && s->codec_id == CODEC_ID_WMV2)
3ada94ba 2893 ff_wmv2_encode_picture_header(s, picture_number);
49fb20cb 2894 else if (CONFIG_MSMPEG4_ENCODER && s->h263_msmpeg4)
3ada94ba 2895 msmpeg4_encode_picture_header(s, picture_number);
49fb20cb 2896 else if (CONFIG_MPEG4_ENCODER && s->h263_pred)
3ada94ba 2897 mpeg4_encode_picture_header(s, picture_number);
49fb20cb 2898 else if (CONFIG_RV10_ENCODER && s->codec_id == CODEC_ID_RV10)
3ada94ba 2899 rv10_encode_picture_header(s, picture_number);
49fb20cb 2900 else if (CONFIG_RV20_ENCODER && s->codec_id == CODEC_ID_RV20)
3ada94ba 2901 rv20_encode_picture_header(s, picture_number);
49fb20cb 2902 else if (CONFIG_FLV_ENCODER && s->codec_id == CODEC_ID_FLV1)
3ada94ba 2903 ff_flv_encode_picture_header(s, picture_number);
49fb20cb 2904 else if (CONFIG_ANY_H263_ENCODER)
3ada94ba
BF
2905 h263_encode_picture_header(s, picture_number);
2906 break;
2907 case FMT_MPEG1:
49fb20cb 2908 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
56be950a 2909 mpeg1_encode_picture_header(s, picture_number);
3ada94ba
BF
2910 break;
2911 case FMT_H264:
2912 break;
2913 default:
2914 assert(0);
2915 }
2916 bits= put_bits_count(&s->pb);
2917 s->header_bits= bits - s->last_bits;
2918
2919 for(i=1; i<s->avctx->thread_count; i++){
2920 update_duplicate_context_after_me(s->thread_context[i], s);
2921 }
3a84713a 2922 s->avctx->execute(s->avctx, encode_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count, sizeof(void*));
3ada94ba
BF
2923 for(i=1; i<s->avctx->thread_count; i++){
2924 merge_context_after_encode(s, s->thread_context[i]);
2925 }
2926 emms_c();
2927 return 0;
2928}
2929
2930void denoise_dct_c(MpegEncContext *s, DCTELEM *block){
2931 const int intra= s->mb_intra;
2932 int i;
2933
2934 s->dct_count[intra]++;
2935
2936 for(i=0; i<64; i++){
2937 int level= block[i];
2938
2939 if(level){
2940 if(level>0){
2941 s->dct_error_sum[intra][i] += level;
2942 level -= s->dct_offset[intra][i];
2943 if(level<0) level=0;
2944 }else{
2945 s->dct_error_sum[intra][i] -= level;
2946 level += s->dct_offset[intra][i];
2947 if(level>0) level=0;
2948 }
2949 block[i]= level;
2950 }
2951 }
2952}
2953
2954int dct_quantize_trellis_c(MpegEncContext *s,
2955 DCTELEM *block, int n,
2956 int qscale, int *overflow){
2957 const int *qmat;
2958 const uint8_t *scantable= s->intra_scantable.scantable;
2959 const uint8_t *perm_scantable= s->intra_scantable.permutated;
2960 int max=0;
2961 unsigned int threshold1, threshold2;
2962 int bias=0;
2963 int run_tab[65];
2964 int level_tab[65];
2965 int score_tab[65];
2966 int survivor[65];
2967 int survivor_count;
2968 int last_run=0;
2969 int last_level=0;
2970 int last_score= 0;
2971 int last_i;
2972 int coeff[2][64];
2973 int coeff_count[64];
2974 int qmul, qadd, start_i, last_non_zero, i, dc;
2975 const int esc_length= s->ac_esc_length;
2976 uint8_t * length;
2977 uint8_t * last_length;
2978 const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6);
2979
2980 s->dsp.fdct (block);
2981
2982 if(s->dct_error_sum)
2983 s->denoise_dct(s, block);
2984 qmul= qscale*16;
2985 qadd= ((qscale-1)|1)*8;
2986
2987 if (s->mb_intra) {
2988 int q;
2989 if (!s->h263_aic) {
2990 if (n < 4)
2991 q = s->y_dc_scale;
2992 else
2993 q = s->c_dc_scale;
2994 q = q << 3;
2995 } else{
2996 /* For AIC we skip quant/dequant of INTRADC */
2997 q = 1 << 3;
2998 qadd=0;
2999 }
3000
3001 /* note: block[0] is assumed to be positive */
3002 block[0] = (block[0] + (q >> 1)) / q;
3003 start_i = 1;
3004 last_non_zero = 0;
3005 qmat = s->q_intra_matrix[qscale];
3006 if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3007 bias= 1<<(QMAT_SHIFT-1);
3008 length = s->intra_ac_vlc_length;
3009 last_length= s->intra_ac_vlc_last_length;
3010 } else {
3011 start_i = 0;
3012 last_non_zero = -1;
3013 qmat = s->q_inter_matrix[qscale];
3014 length = s->inter_ac_vlc_length;
3015 last_length= s->inter_ac_vlc_last_length;
3016 }
3017 last_i= start_i;
3018
3019 threshold1= (1<<QMAT_SHIFT) - bias - 1;
3020 threshold2= (threshold1<<1);
3021
3022 for(i=63; i>=start_i; i--) {
3023 const int j = scantable[i];
3024 int level = block[j] * qmat[j];
3025
3026 if(((unsigned)(level+threshold1))>threshold2){
3027 last_non_zero = i;
3028 break;
3029 }
3030 }
3031
3032 for(i=start_i; i<=last_non_zero; i++) {
3033 const int j = scantable[i];
3034 int level = block[j] * qmat[j];
3035
3036// if( bias+level >= (1<<(QMAT_SHIFT - 3))
3037// || bias-level >= (1<<(QMAT_SHIFT - 3))){
3038 if(((unsigned)(level+threshold1))>threshold2){
3039 if(level>0){
3040 level= (bias + level)>>QMAT_SHIFT;
3041 coeff[0][i]= level;
3042 coeff[1][i]= level-1;
3043// coeff[2][k]= level-2;
3044 }else{
3045 level= (bias - level)>>QMAT_SHIFT;
3046 coeff[0][i]= -level;
3047 coeff[1][i]= -level+1;
3048// coeff[2][k]= -level+2;
3049 }
3050 coeff_count[i]= FFMIN(level, 2);
3051 assert(coeff_count[i]);
3052 max |=level;
3053 }else{
3054 coeff[0][i]= (level>>31)|1;
3055 coeff_count[i]= 1;
3056 }
3057 }
3058
3059 *overflow= s->max_qcoeff < max; //overflow might have happened
3060
3061 if(last_non_zero < start_i){
3062 memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3063 return last_non_zero;
3064 }
3065
3066 score_tab[start_i]= 0;
3067 survivor[0]= start_i;
3068 survivor_count= 1;
3069
3070 for(i=start_i; i<=last_non_zero; i++){
e6dba5df 3071 int level_index, j, zero_distortion;
b6bffc46 3072 int dct_coeff= FFABS(block[ scantable[i] ]);
3ada94ba 3073 int best_score=256*256*256*120;
b6bffc46
MN
3074
3075 if ( s->dsp.fdct == fdct_ifast
3076#ifndef FAAN_POSTSCALE
3077 || s->dsp.fdct == ff_faandct
3078#endif
3079 )
939e4e3a 3080 dct_coeff= (dct_coeff*ff_inv_aanscales[ scantable[i] ]) >> 12;
e6dba5df 3081 zero_distortion= dct_coeff*dct_coeff;
b6bffc46 3082
3ada94ba 3083 for(level_index=0; level_index < coeff_count[i]; level_index++){
e6dba5df 3084 int distortion;
3ada94ba
BF
3085 int level= coeff[level_index][i];
3086 const int alevel= FFABS(level);
3087 int unquant_coeff;
3088
3089 assert(level);
3090
3091 if(s->out_format == FMT_H263){
3092 unquant_coeff= alevel*qmul + qadd;
3093 }else{ //MPEG1
3094 j= s->dsp.idct_permutation[ scantable[i] ]; //FIXME optimize
3095 if(s->mb_intra){
3096 unquant_coeff = (int)( alevel * qscale * s->intra_matrix[j]) >> 3;
3097 unquant_coeff = (unquant_coeff - 1) | 1;
3098 }else{
3099 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[j])) >> 4;
3100 unquant_coeff = (unquant_coeff - 1) | 1;
3101 }
3102 unquant_coeff<<= 3;
3103 }
3104
e6dba5df 3105 distortion= (unquant_coeff - dct_coeff) * (unquant_coeff - dct_coeff) - zero_distortion;
3ada94ba
BF
3106 level+=64;
3107 if((level&(~127)) == 0){
3108 for(j=survivor_count-1; j>=0; j--){
3109 int run= i - survivor[j];
e6dba5df 3110 int score= distortion + length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3ada94ba
BF
3111 score += score_tab[i-run];
3112
3113 if(score < best_score){
3114 best_score= score;
3115 run_tab[i+1]= run;
3116 level_tab[i+1]= level-64;
3117 }
3118 }
3119
3120 if(s->out_format == FMT_H263){
3121 for(j=survivor_count-1; j>=0; j--){
3122 int run= i - survivor[j];
e6dba5df 3123 int score= distortion + last_length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3ada94ba
BF
3124 score += score_tab[i-run];
3125 if(score < last_score){
3126 last_score= score;
3127 last_run= run;
3128 last_level= level-64;
3129 last_i= i+1;
3130 }
3131 }
3132 }
3133 }else{
e6dba5df 3134 distortion += esc_length*lambda;
3ada94ba
BF
3135 for(j=survivor_count-1; j>=0; j--){
3136 int run= i - survivor[j];
e6dba5df 3137 int score= distortion + score_tab[i-run];
3ada94ba
BF
3138
3139 if(score < best_score){
3140 best_score= score;
3141 run_tab[i+1]= run;
3142 level_tab[i+1]= level-64;
3143 }
3144 }
3145
3146 if(s->out_format == FMT_H263){
3147 for(j=survivor_count-1; j>=0; j--){
3148 int run= i - survivor[j];
e6dba5df 3149 int score= distortion + score_tab[i-run];
3ada94ba
BF
3150 if(score < last_score){
3151 last_score= score;
3152 last_run= run;
3153 last_level= level-64;
3154 last_i= i+1;
3155 }
3156 }
3157 }
3158 }
3159 }
3160
3161 score_tab[i+1]= best_score;
3162
3163 //Note: there is a vlc code in mpeg4 which is 1 bit shorter then another one with a shorter run and the same level
3164 if(last_non_zero <= 27){
3165 for(; survivor_count; survivor_count--){
3166 if(score_tab[ survivor[survivor_count-1] ] <= best_score)
3167 break;
3168 }
3169 }else{
3170 for(; survivor_count; survivor_count--){
3171 if(score_tab[ survivor[survivor_count-1] ] <= best_score + lambda)
3172 break;
3173 }
3174 }
3175
3176 survivor[ survivor_count++ ]= i+1;
3177 }
3178
3179 if(s->out_format != FMT_H263){
3180 last_score= 256*256*256*120;
3181 for(i= survivor[0]; i<=last_non_zero + 1; i++){
3182 int score= score_tab[i];
3183 if(i) score += lambda*2; //FIXME exacter?
3184
3185 if(score < last_score){
3186 last_score= score;
3187 last_i= i;
3188 last_level= level_tab[i];
3189 last_run= run_tab[i];
3190 }
3191 }
3192 }
3193
3194 s->coded_score[n] = last_score;
3195
3196 dc= FFABS(block[0]);
3197 last_non_zero= last_i - 1;
3198 memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3199
3200 if(last_non_zero < start_i)
3201 return last_non_zero;
3202
3203 if(last_non_zero == 0 && start_i == 0){
3204 int best_level= 0;
3205 int best_score= dc * dc;
3206
3207 for(i=0; i<coeff_count[0]; i++){
3208 int level= coeff[i][0];
3209 int alevel= FFABS(level);
3210 int unquant_coeff, score, distortion;
3211
3212 if(s->out_format == FMT_H263){
3213 unquant_coeff= (alevel*qmul + qadd)>>3;
3214 }else{ //MPEG1
3215 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[0])) >> 4;
3216 unquant_coeff = (unquant_coeff - 1) | 1;
3217 }
3218 unquant_coeff = (unquant_coeff + 4) >> 3;
3219 unquant_coeff<<= 3 + 3;
3220
3221 distortion= (unquant_coeff - dc) * (unquant_coeff - dc);
3222 level+=64;
3223 if((level&(~127)) == 0) score= distortion + last_length[UNI_AC_ENC_INDEX(0, level)]*lambda;
3224 else score= distortion + esc_length*lambda;
3225
3226 if(score < best_score){
3227 best_score= score;
3228 best_level= level - 64;
3229 }
3230 }
3231 block[0]= best_level;
3232 s->coded_score[n] = best_score - dc*dc;
3233 if(best_level == 0) return -1;
3234 else return last_non_zero;
3235 }
3236
3237 i= last_i;
3238 assert(last_level);
3239
3240 block[ perm_scantable[last_non_zero] ]= last_level;
3241 i -= last_run + 1;
3242
3243 for(; i>start_i; i -= run_tab[i] + 1){
3244 block[ perm_scantable[i-1] ]= level_tab[i];
3245 }
3246
3247 return last_non_zero;
3248}
3249
3250//#define REFINE_STATS 1
3251static int16_t basis[64][64];
3252
3253static void build_basis(uint8_t *perm){
3254 int i, j, x, y;
3255 emms_c();
3256 for(i=0; i<8; i++){
3257 for(j=0; j<8; j++){
3258 for(y=0; y<8; y++){
3259 for(x=0; x<8; x++){
3260 double s= 0.25*(1<<BASIS_SHIFT);
3261 int index= 8*i + j;
3262 int perm_index= perm[index];
3263 if(i==0) s*= sqrt(0.5);
3264 if(j==0) s*= sqrt(0.5);
3265 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)));
3266 }
3267 }
3268 }
3269 }
3270}
3271
3272static int dct_quantize_refine(MpegEncContext *s, //FIXME breaks denoise?
3273 DCTELEM *block, int16_t *weight, DCTELEM *orig,
3274 int n, int qscale){
3275 int16_t rem[64];
3276 DECLARE_ALIGNED_16(DCTELEM, d1[64]);
3ada94ba
BF
3277 const uint8_t *scantable= s->intra_scantable.scantable;
3278 const uint8_t *perm_scantable= s->intra_scantable.permutated;
3279// unsigned int threshold1, threshold2;
3280// int bias=0;
3281 int run_tab[65];
3282 int prev_run=0;
3283 int prev_level=0;
3284 int qmul, qadd, start_i, last_non_zero, i, dc;
3285 uint8_t * length;
3286 uint8_t * last_length;
3287 int lambda;
3288 int rle_index, run, q = 1, sum; //q is only used when s->mb_intra is true
3289#ifdef REFINE_STATS
3290static int count=0;
3291static int after_last=0;
3292static int to_zero=0;
3293static int from_zero=0;
3294static int raise=0;
3295static int lower=0;
3296static int messed_sign=0;
3297#endif
3298
3299 if(basis[0][0] == 0)
3300 build_basis(s->dsp.idct_permutation);
3301
3302 qmul= qscale*2;
3303 qadd= (qscale-1)|1;
3304 if (s->mb_intra) {
3305 if (!s->h263_aic) {
3306 if (n < 4)
3307 q = s->y_dc_scale;
3308 else
3309 q = s->c_dc_scale;
3310 } else{
3311 /* For AIC we skip quant/dequant of INTRADC */
3312 q = 1;
3313 qadd=0;
3314 }
3315 q <<= RECON_SHIFT-3;
3316 /* note: block[0] is assumed to be positive */
3317 dc= block[0]*q;
3318// block[0] = (block[0] + (q >> 1)) / q;
3319 start_i = 1;
3ada94ba
BF
3320// if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3321// bias= 1<<(QMAT_SHIFT-1);
3322 length = s->intra_ac_vlc_length;
3323 last_length= s->intra_ac_vlc_last_length;
3324 } else {
3325 dc= 0;
3326 start_i = 0;
3ada94ba
BF
3327 length = s->inter_ac_vlc_length;
3328 last_length= s->inter_ac_vlc_last_length;
3329 }
3330 last_non_zero = s->block_last_index[n];
3331
3332#ifdef REFINE_STATS
3333{START_TIMER
3334#endif
3335 dc += (1<<(RECON_SHIFT-1));
3336 for(i=0; i<64; i++){
3337 rem[i]= dc - (orig[i]<<RECON_SHIFT); //FIXME use orig dirrectly instead of copying to rem[]
3338 }
3339#ifdef REFINE_STATS
3340STOP_TIMER("memset rem[]")}
3341#endif
3342 sum=0;
3343 for(i=0; i<64; i++){
3344 int one= 36;
3345 int qns=4;
3346 int w;
3347
3348 w= FFABS(weight[i]) + qns*one;
3349 w= 15 + (48*qns*one + w/2)/w; // 16 .. 63
3350
3351 weight[i] = w;
3352// w=weight[i] = (63*qns + (w/2)) / w;
3353
3354 assert(w>0);
3355 assert(w<(1<<6));
3356 sum += w*w;
3357 }
3358 lambda= sum*(uint64_t)s->lambda2 >> (FF_LAMBDA_SHIFT - 6 + 6 + 6 + 6);
3359#ifdef REFINE_STATS
3360{START_TIMER
3361#endif
3362 run=0;
3363 rle_index=0;
3364 for(i=start_i; i<=last_non_zero; i++){
3365 int j= perm_scantable[i];
3366 const int level= block[j];
3367 int coeff;
3368
3369 if(level){
3370 if(level<0) coeff= qmul*level - qadd;
3371 else coeff= qmul*level + qadd;
3372 run_tab[rle_index++]=run;
3373 run=0;
3374
3375 s->dsp.add_8x8basis(rem, basis[j], coeff);
3376 }else{
3377 run++;
3378 }
3379 }
3380#ifdef REFINE_STATS
3381if(last_non_zero>0){
3382STOP_TIMER("init rem[]")
3383}
3384}
3385
3386{START_TIMER
3387#endif
3388 for(;;){
3389 int best_score=s->dsp.try_8x8basis(rem, weight, basis[0], 0);
3390 int best_coeff=0;
3391 int best_change=0;
3392 int run2, best_unquant_change=0, analyze_gradient;
3393#ifdef REFINE_STATS
3394{START_TIMER
3395#endif
3396 analyze_gradient = last_non_zero > 2 || s->avctx->quantizer_noise_shaping >= 3;
3397
3398 if(analyze_gradient){
3399#ifdef REFINE_STATS
3400{START_TIMER
3401#endif
3402 for(i=0; i<64; i++){
3403 int w= weight[i];
3404
3405 d1[i] = (rem[i]*w*w + (1<<(RECON_SHIFT+12-1)))>>(RECON_SHIFT+12);
3406 }
3407#ifdef REFINE_STATS
3408STOP_TIMER("rem*w*w")}
3409{START_TIMER
3410#endif
3411 s->dsp.fdct(d1);
3412#ifdef REFINE_STATS
3413STOP_TIMER("dct")}
3414#endif
3415 }
3416
3417 if(start_i){
3418 const int level= block[0];
3419 int change, old_coeff;
3420
3421 assert(s->mb_intra);
3422
3423 old_coeff= q*level;
3424
3425 for(change=-1; change<=1; change+=2){
3426 int new_level= level + change;
3427 int score, new_coeff;
3428
3429 new_coeff= q*new_level;
3430 if(new_coeff >= 2048 || new_coeff < 0)
3431 continue;
3432
3433 score= s->dsp.try_8x8basis(rem, weight, basis[0], new_coeff - old_coeff);
3434 if(score<best_score){
3435 best_score= score;
3436 best_coeff= 0;
3437 best_change= change;
3438 best_unquant_change= new_coeff - old_coeff;
3439 }
3440 }
3441 }
3442
3443 run=0;
3444 rle_index=0;
3445 run2= run_tab[rle_index++];
3446 prev_level=0;
3447 prev_run=0;
3448
3449 for(i=start_i; i<64; i++){
3450 int j= perm_scantable[i];
3451 const int level= block[j];
3452 int change, old_coeff;
3453
3454 if(s->avctx->quantizer_noise_shaping < 3 && i > last_non_zero + 1)
3455 break;
3456
3457 if(level){
3458 if(level<0) old_coeff= qmul*level - qadd;
3459 else old_coeff= qmul*level + qadd;
3460 run2= run_tab[rle_index++]; //FIXME ! maybe after last
3461 }else{
3462 old_coeff=0;
3463 run2--;
3464 assert(run2>=0 || i >= last_non_zero );
3465 }
3466
3467 for(change=-1; change<=1; change+=2){
3468 int new_level= level + change;
3469 int score, new_coeff, unquant_change;
3470
3471 score=0;
3472 if(s->avctx->quantizer_noise_shaping < 2 && FFABS(new_level) > FFABS(level))
3473 continue;
3474
3475 if(new_level){
3476 if(new_level<0) new_coeff= qmul*new_level - qadd;
3477 else new_coeff= qmul*new_level + qadd;
3478 if(new_coeff >= 2048 || new_coeff <= -2048)
3479 continue;
3480 //FIXME check for overflow
3481
3482 if(level){
3483 if(level < 63 && level > -63){
3484 if(i < last_non_zero)
3485 score += length[UNI_AC_ENC_INDEX(run, new_level+64)]
3486 - length[UNI_AC_ENC_INDEX(run, level+64)];
3487 else
3488 score += last_length[UNI_AC_ENC_INDEX(run, new_level+64)]
3489 - last_length[UNI_AC_ENC_INDEX(run, level+64)];
3490 }
3491 }else{
3492 assert(FFABS(new_level)==1);
3493
3494 if(analyze_gradient){
3495 int g= d1[ scantable[i] ];
3496 if(g && (g^new_level) >= 0)
3497 continue;
3498 }
3499
3500 if(i < last_non_zero){
3501 int next_i= i + run2 + 1;
3502 int next_level= block[ perm_scantable[next_i] ] + 64;
3503
3504 if(next_level&(~127))
3505 next_level= 0;
3506
3507 if(next_i < last_non_zero)
3508 score += length[UNI_AC_ENC_INDEX(run, 65)]
3509 + length[UNI_AC_ENC_INDEX(run2, next_level)]
3510 - length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3511 else
3512 score += length[UNI_AC_ENC_INDEX(run, 65)]
3513 + last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3514 - last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3515 }else{
3516 score += last_length[UNI_AC_ENC_INDEX(run, 65)];
3517 if(prev_level){
3518 score += length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3519 - last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3520 }
3521 }
3522 }
3523 }else{
3524 new_coeff=0;
3525 assert(FFABS(level)==1);
3526
3527 if(i < last_non_zero){
3528 int next_i= i + run2 + 1;
3529 int next_level= block[ perm_scantable[next_i] ] + 64;
3530
3531 if(next_level&(~127))
3532 next_level= 0;
3533
3534 if(next_i < last_non_zero)
3535 score += length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3536 - length[UNI_AC_ENC_INDEX(run2, next_level)]
3537 - length[UNI_AC_ENC_INDEX(run, 65)];
3538 else
3539 score += last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3540 - last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3541 - length[UNI_AC_ENC_INDEX(run, 65)];
3542 }else{
3543 score += -last_length[UNI_AC_ENC_INDEX(run, 65)];
3544 if(prev_level){
3545 score += last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3546 - length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3547 }
3548 }
3549 }
3550
3551 score *= lambda;
3552
3553 unquant_change= new_coeff - old_coeff;
3554 assert((score < 100*lambda && score > -100*lambda) || lambda==0);
3555
3556 score+= s->dsp.try_8x8basis(rem, weight, basis[j], unquant_change);
3557 if(score<best_score){
3558 best_score= score;
3559 best_coeff= i;
3560 best_change= change;
3561 best_unquant_change= unquant_change;
3562 }
3563 }
3564 if(level){
3565 prev_level= level + 64;
3566 if(prev_level&(~127))
3567 prev_level= 0;
3568 prev_run= run;
3569 run=0;
3570 }else{
3571 run++;
3572 }
3573 }
3574#ifdef REFINE_STATS
3575STOP_TIMER("iterative step")}
3576#endif
3577
3578 if(best_change){
3579 int j= perm_scantable[ best_coeff ];
3580
3581 block[j] += best_change;
3582
3583 if(best_coeff > last_non_zero){
3584 last_non_zero= best_coeff;
3585 assert(block[j]);
3586#ifdef REFINE_STATS
3587after_last++;
3588#endif
3589 }else{
3590#ifdef REFINE_STATS
3591if(block[j]){
3592 if(block[j] - best_change){
3593 if(FFABS(block[j]) > FFABS(block[j] - best_change)){
3594 raise++;
3595 }else{
3596 lower++;
3597 }
3598 }else{
3599 from_zero++;
3600 }
3601}else{
3602 to_zero++;
3603}
3604#endif
3605 for(; last_non_zero>=start_i; last_non_zero--){
3606 if(block[perm_scantable[last_non_zero]])
3607 break;
3608 }
3609 }
3610#ifdef REFINE_STATS
3611count++;
3612if(256*256*256*64 % count == 0){
3613 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);
3614}
3615#endif
3616 run=0;
3617 rle_index=0;
3618 for(i=start_i; i<=last_non_zero; i++){
3619 int j= perm_scantable[i];
3620 const int level= block[j];
3621
3622 if(level){
3623 run_tab[rle_index++]=run;
3624 run=0;
3625 }else{
3626 run++;
3627 }
3628 }
3629
3630 s->dsp.add_8x8basis(rem, basis[j], best_unquant_change);
3631 }else{
3632 break;
3633 }
3634 }
3635#ifdef REFINE_STATS
3636if(last_non_zero>0){
3637STOP_TIMER("iterative search")
3638}
3639}
3640#endif
3641
3642 return last_non_zero;
3643}
3644
3645int dct_quantize_c(MpegEncContext *s,
3646 DCTELEM *block, int n,
3647 int qscale, int *overflow)
3648{
3649 int i, j, level, last_non_zero, q, start_i;
3650 const int *qmat;
3651 const uint8_t *scantable= s->intra_scantable.scantable;
3652 int bias;
3653 int max=0;
3654 unsigned int threshold1, threshold2;
3655
3656 s->dsp.fdct (block);
3657
3658 if(s->dct_error_sum)
3659 s->denoise_dct(s, block);
3660
3661 if (s->mb_intra) {
3662 if (!s->h263_aic) {
3663 if (n < 4)
3664 q = s->y_dc_scale;
3665 else
3666 q = s->c_dc_scale;
3667 q = q << 3;
3668 } else
3669 /* For AIC we skip quant/dequant of INTRADC */
3670 q = 1 << 3;
3671
3672 /* note: block[0] is assumed to be positive */
3673 block[0] = (block[0] + (q >> 1)) / q;
3674 start_i = 1;
3675 last_non_zero = 0;
3676 qmat = s->q_intra_matrix[qscale];
3677 bias= s->intra_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3678 } else {
3679 start_i = 0;
3680 last_non_zero = -1;
3681 qmat = s->q_inter_matrix[qscale];
3682 bias= s->inter_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3683 }
3684 threshold1= (1<<QMAT_SHIFT) - bias - 1;
3685 threshold2= (threshold1<<1);
3686 for(i=63;i>=start_i;i--) {
3687 j = scantable[i];
3688 level = block[j] * qmat[j];
3689
3690 if(((unsigned)(level+threshold1))>threshold2){
3691 last_non_zero = i;
3692 break;
3693 }else{
3694 block[j]=0;
3695 }
3696 }
3697 for(i=start_i; i<=last_non_zero; i++) {
3698 j = scantable[i];
3699 level = block[j] * qmat[j];
3700
3701// if( bias+level >= (1<<QMAT_SHIFT)
3702// || bias-level >= (1<<QMAT_SHIFT)){
3703 if(((unsigned)(level+threshold1))>threshold2){
3704 if(level>0){
3705 level= (bias + level)>>QMAT_SHIFT;
3706 block[j]= level;
3707 }else{