remove mxf.c, previously copied to mxfdec.c
[libav.git] / libavcodec / mpegvideo_enc.c
CommitLineData
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1/*
2 * The simplest mpeg encoder (well, it was the simplest!)
3 * Copyright (c) 2000,2001 Fabrice Bellard.
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5 *
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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/**
26 * @file mpegvideo_enc.c
27 * The simplest mpeg encoder (well, it was the simplest!).
28 */
29
30#include "avcodec.h"
31#include "dsputil.h"
32#include "mpegvideo.h"
33#include "mpegvideo_common.h"
34#include "mjpegenc.h"
35#include "msmpeg4.h"
eb75a698 36#include "h263.h"
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37#include "faandct.h"
38#include <limits.h>
39
40//#undef NDEBUG
41//#include <assert.h>
42
43static int encode_picture(MpegEncContext *s, int picture_number);
44static int dct_quantize_refine(MpegEncContext *s, DCTELEM *block, int16_t *weight, DCTELEM *orig, int n, int qscale);
45static int sse_mb(MpegEncContext *s);
46
47/* enable all paranoid tests for rounding, overflows, etc... */
48//#define PARANOID
49
50//#define DEBUG
51
52static const uint16_t aanscales[64] = {
53 /* precomputed values scaled up by 14 bits */
54 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520,
55 22725, 31521, 29692, 26722, 22725, 17855, 12299, 6270,
56 21407, 29692, 27969, 25172, 21407, 16819, 11585, 5906,
57 19266, 26722, 25172, 22654, 19266, 15137, 10426, 5315,
58 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520,
59 12873, 17855, 16819, 15137, 12873, 10114, 6967, 3552,
60 8867 , 12299, 11585, 10426, 8867, 6967, 4799, 2446,
61 4520 , 6270, 5906, 5315, 4520, 3552, 2446, 1247
62};
63
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64static const uint16_t inv_aanscales[64] = {
65 4096, 2953, 3135, 3483, 4096, 5213, 7568, 14846,
66 2953, 2129, 2260, 2511, 2953, 3759, 5457, 10703,
67 3135, 2260, 2399, 2666, 3135, 3990, 5793, 11363,
68 3483, 2511, 2666, 2962, 3483, 4433, 6436, 12625,
69 4096, 2953, 3135, 3483, 4096, 5213, 7568, 14846,
70 5213, 3759, 3990, 4433, 5213, 6635, 9633, 18895,
71 7568, 5457, 5793, 6436, 7568, 9633, 13985, 27432,
72 14846, 10703, 11363, 12625, 14846, 18895, 27432, 53809,
73};
74
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75static uint8_t default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
76static uint8_t default_fcode_tab[MAX_MV*2+1];
77
69cea75f 78void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
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79 const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra)
80{
81 int qscale;
82 int shift=0;
83
84 for(qscale=qmin; qscale<=qmax; qscale++){
85 int i;
86 if (dsp->fdct == ff_jpeg_fdct_islow
87#ifdef FAAN_POSTSCALE
88 || dsp->fdct == ff_faandct
89#endif
90 ) {
91 for(i=0;i<64;i++) {
92 const int j= dsp->idct_permutation[i];
93 /* 16 <= qscale * quant_matrix[i] <= 7905 */
94 /* 19952 <= aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
95 /* (1<<36)/19952 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
96 /* 3444240 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= 275 */
97
98 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) /
99 (qscale * quant_matrix[j]));
100 }
101 } else if (dsp->fdct == fdct_ifast
102#ifndef FAAN_POSTSCALE
103 || dsp->fdct == ff_faandct
104#endif
105 ) {
106 for(i=0;i<64;i++) {
107 const int j= dsp->idct_permutation[i];
108 /* 16 <= qscale * quant_matrix[i] <= 7905 */
109 /* 19952 <= aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
110 /* (1<<36)/19952 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
111 /* 3444240 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= 275 */
112
113 qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) /
114 (aanscales[i] * qscale * quant_matrix[j]));
115 }
116 } else {
117 for(i=0;i<64;i++) {
118 const int j= dsp->idct_permutation[i];
119 /* We can safely suppose that 16 <= quant_matrix[i] <= 255
120 So 16 <= qscale * quant_matrix[i] <= 7905
121 so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
122 so 32768 >= (1<<19) / (qscale * quant_matrix[i]) >= 67
123 */
124 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / (qscale * quant_matrix[j]));
125// qmat [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
126 qmat16[qscale][0][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[j]);
127
128 if(qmat16[qscale][0][i]==0 || qmat16[qscale][0][i]==128*256) qmat16[qscale][0][i]=128*256-1;
129 qmat16[qscale][1][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][0][i]);
130 }
131 }
132
133 for(i=intra; i<64; i++){
134 int64_t max= 8191;
135 if (dsp->fdct == fdct_ifast
136#ifndef FAAN_POSTSCALE
137 || dsp->fdct == ff_faandct
138#endif
139 ) {
140 max= (8191LL*aanscales[i]) >> 14;
141 }
142 while(((max * qmat[qscale][i]) >> shift) > INT_MAX){
143 shift++;
144 }
145 }
146 }
147 if(shift){
148 av_log(NULL, AV_LOG_INFO, "Warning, QMAT_SHIFT is larger than %d, overflows possible\n", QMAT_SHIFT - shift);
149 }
150}
151
152static inline void update_qscale(MpegEncContext *s){
153 s->qscale= (s->lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
154 s->qscale= av_clip(s->qscale, s->avctx->qmin, s->avctx->qmax);
155
156 s->lambda2= (s->lambda*s->lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
157}
158
159void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix){
160 int i;
161
162 if(matrix){
163 put_bits(pb, 1, 1);
164 for(i=0;i<64;i++) {
165 put_bits(pb, 8, matrix[ ff_zigzag_direct[i] ]);
166 }
167 }else
168 put_bits(pb, 1, 0);
169}
170
171static void copy_picture_attributes(MpegEncContext *s, AVFrame *dst, AVFrame *src){
172 int i;
173
174 dst->pict_type = src->pict_type;
175 dst->quality = src->quality;
176 dst->coded_picture_number = src->coded_picture_number;
177 dst->display_picture_number = src->display_picture_number;
178// dst->reference = src->reference;
179 dst->pts = src->pts;
180 dst->interlaced_frame = src->interlaced_frame;
181 dst->top_field_first = src->top_field_first;
182
183 if(s->avctx->me_threshold){
184 if(!src->motion_val[0])
185 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_val not set!\n");
186 if(!src->mb_type)
187 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.mb_type not set!\n");
188 if(!src->ref_index[0])
189 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.ref_index not set!\n");
190 if(src->motion_subsample_log2 != dst->motion_subsample_log2)
191 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_subsample_log2 doesn't match! (%d!=%d)\n",
192 src->motion_subsample_log2, dst->motion_subsample_log2);
193
194 memcpy(dst->mb_type, src->mb_type, s->mb_stride * s->mb_height * sizeof(dst->mb_type[0]));
195
196 for(i=0; i<2; i++){
197 int stride= ((16*s->mb_width )>>src->motion_subsample_log2) + 1;
198 int height= ((16*s->mb_height)>>src->motion_subsample_log2);
199
200 if(src->motion_val[i] && src->motion_val[i] != dst->motion_val[i]){
201 memcpy(dst->motion_val[i], src->motion_val[i], 2*stride*height*sizeof(int16_t));
202 }
203 if(src->ref_index[i] && src->ref_index[i] != dst->ref_index[i]){
204 memcpy(dst->ref_index[i], src->ref_index[i], s->b8_stride*2*s->mb_height*sizeof(int8_t));
205 }
206 }
207 }
208}
209
210static void update_duplicate_context_after_me(MpegEncContext *dst, MpegEncContext *src){
211#define COPY(a) dst->a= src->a
212 COPY(pict_type);
213 COPY(current_picture);
214 COPY(f_code);
215 COPY(b_code);
216 COPY(qscale);
217 COPY(lambda);
218 COPY(lambda2);
219 COPY(picture_in_gop_number);
220 COPY(gop_picture_number);
221 COPY(frame_pred_frame_dct); //FIXME don't set in encode_header
222 COPY(progressive_frame); //FIXME don't set in encode_header
223 COPY(partitioned_frame); //FIXME don't set in encode_header
224#undef COPY
225}
226
227/**
228 * sets the given MpegEncContext to defaults for encoding.
229 * the changed fields will not depend upon the prior state of the MpegEncContext.
230 */
231static void MPV_encode_defaults(MpegEncContext *s){
232 int i;
233 MPV_common_defaults(s);
234
235 for(i=-16; i<16; i++){
236 default_fcode_tab[i + MAX_MV]= 1;
237 }
238 s->me.mv_penalty= default_mv_penalty;
239 s->fcode_tab= default_fcode_tab;
240}
241
242/* init video encoder */
98a6fff9 243av_cold int MPV_encode_init(AVCodecContext *avctx)
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244{
245 MpegEncContext *s = avctx->priv_data;
246 int i;
247 int chroma_h_shift, chroma_v_shift;
248
249 MPV_encode_defaults(s);
250
251 switch (avctx->codec_id) {
252 case CODEC_ID_MPEG2VIDEO:
253 if(avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P){
254 av_log(avctx, AV_LOG_ERROR, "only YUV420 and YUV422 are supported\n");
255 return -1;
256 }
257 break;
258 case CODEC_ID_LJPEG:
259 case CODEC_ID_MJPEG:
260 if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P &&
261 ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P) || avctx->strict_std_compliance>FF_COMPLIANCE_INOFFICIAL)){
262 av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n");
263 return -1;
264 }
265 break;
266 default:
267 if(avctx->pix_fmt != PIX_FMT_YUV420P){
268 av_log(avctx, AV_LOG_ERROR, "only YUV420 is supported\n");
269 return -1;
270 }
271 }
272
273 switch (avctx->pix_fmt) {
274 case PIX_FMT_YUVJ422P:
275 case PIX_FMT_YUV422P:
276 s->chroma_format = CHROMA_422;
277 break;
278 case PIX_FMT_YUVJ420P:
279 case PIX_FMT_YUV420P:
280 default:
281 s->chroma_format = CHROMA_420;
282 break;
283 }
284
285 s->bit_rate = avctx->bit_rate;
286 s->width = avctx->width;
287 s->height = avctx->height;
288 if(avctx->gop_size > 600 && avctx->strict_std_compliance>FF_COMPLIANCE_EXPERIMENTAL){
289 av_log(avctx, AV_LOG_ERROR, "Warning keyframe interval too large! reducing it ...\n");
290 avctx->gop_size=600;
291 }
292 s->gop_size = avctx->gop_size;
293 s->avctx = avctx;
294 s->flags= avctx->flags;
295 s->flags2= avctx->flags2;
296 s->max_b_frames= avctx->max_b_frames;
297 s->codec_id= avctx->codec->id;
298 s->luma_elim_threshold = avctx->luma_elim_threshold;
299 s->chroma_elim_threshold= avctx->chroma_elim_threshold;
300 s->strict_std_compliance= avctx->strict_std_compliance;
301 s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
302 s->quarter_sample= (avctx->flags & CODEC_FLAG_QPEL)!=0;
303 s->mpeg_quant= avctx->mpeg_quant;
304 s->rtp_mode= !!avctx->rtp_payload_size;
305 s->intra_dc_precision= avctx->intra_dc_precision;
306 s->user_specified_pts = AV_NOPTS_VALUE;
307
308 if (s->gop_size <= 1) {
309 s->intra_only = 1;
310 s->gop_size = 12;
311 } else {
312 s->intra_only = 0;
313 }
314
315 s->me_method = avctx->me_method;
316
317 /* Fixed QSCALE */
318 s->fixed_qscale = !!(avctx->flags & CODEC_FLAG_QSCALE);
319
320 s->adaptive_quant= ( s->avctx->lumi_masking
321 || s->avctx->dark_masking
322 || s->avctx->temporal_cplx_masking
323 || s->avctx->spatial_cplx_masking
324 || s->avctx->p_masking
325 || s->avctx->border_masking
326 || (s->flags&CODEC_FLAG_QP_RD))
327 && !s->fixed_qscale;
328
329 s->obmc= !!(s->flags & CODEC_FLAG_OBMC);
330 s->loop_filter= !!(s->flags & CODEC_FLAG_LOOP_FILTER);
331 s->alternate_scan= !!(s->flags & CODEC_FLAG_ALT_SCAN);
332 s->intra_vlc_format= !!(s->flags2 & CODEC_FLAG2_INTRA_VLC);
333 s->q_scale_type= !!(s->flags2 & CODEC_FLAG2_NON_LINEAR_QUANT);
334
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335#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0)
336 if (s->flags & CODEC_FLAG_TRELLIS_QUANT)
337 avctx->trellis = 1;
338#endif
339
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340 if(avctx->rc_max_rate && !avctx->rc_buffer_size){
341 av_log(avctx, AV_LOG_ERROR, "a vbv buffer size is needed, for encoding with a maximum bitrate\n");
342 return -1;
343 }
344
345 if(avctx->rc_min_rate && avctx->rc_max_rate != avctx->rc_min_rate){
346 av_log(avctx, AV_LOG_INFO, "Warning min_rate > 0 but min_rate != max_rate isn't recommended!\n");
347 }
348
349 if(avctx->rc_min_rate && avctx->rc_min_rate > avctx->bit_rate){
350 av_log(avctx, AV_LOG_ERROR, "bitrate below min bitrate\n");
351 return -1;
352 }
353
354 if(avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate){
355 av_log(avctx, AV_LOG_INFO, "bitrate above max bitrate\n");
356 return -1;
357 }
358
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359 if(avctx->rc_max_rate && avctx->rc_max_rate == avctx->bit_rate && avctx->rc_max_rate != avctx->rc_min_rate){
360 av_log(avctx, AV_LOG_INFO, "impossible bitrate constraints, this will fail\n");
361 }
362
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363 if(avctx->rc_buffer_size && avctx->bit_rate*av_q2d(avctx->time_base) > avctx->rc_buffer_size){
364 av_log(avctx, AV_LOG_ERROR, "VBV buffer too small for bitrate\n");
365 return -1;
366 }
367
368 if(avctx->bit_rate*av_q2d(avctx->time_base) > avctx->bit_rate_tolerance){
369 av_log(avctx, AV_LOG_ERROR, "bitrate tolerance too small for bitrate\n");
370 return -1;
371 }
372
373 if( s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate
374 && (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO)
375 && 90000LL * (avctx->rc_buffer_size-1) > s->avctx->rc_max_rate*0xFFFFLL){
376
377 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");
378 }
379
380 if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4
381 && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P && s->codec_id != CODEC_ID_FLV1){
382 av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n");
383 return -1;
384 }
385
386 if(s->obmc && s->avctx->mb_decision != FF_MB_DECISION_SIMPLE){
387 av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with simple mb decision\n");
388 return -1;
389 }
390
391 if(s->obmc && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P){
392 av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with H263(+)\n");
393 return -1;
394 }
395
396 if(s->quarter_sample && s->codec_id != CODEC_ID_MPEG4){
397 av_log(avctx, AV_LOG_ERROR, "qpel not supported by codec\n");
398 return -1;
399 }
400
401 if(s->data_partitioning && s->codec_id != CODEC_ID_MPEG4){
402 av_log(avctx, AV_LOG_ERROR, "data partitioning not supported by codec\n");
403 return -1;
404 }
405
406 if(s->max_b_frames && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO){
407 av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n");
408 return -1;
409 }
410
411 if((s->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN))
412 && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG2VIDEO){
413 av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n");
414 return -1;
415 }
416
417 if(s->mpeg_quant && s->codec_id != CODEC_ID_MPEG4){ //FIXME mpeg2 uses that too
418 av_log(avctx, AV_LOG_ERROR, "mpeg2 style quantization not supported by codec\n");
419 return -1;
420 }
421
febea2f2 422 if((s->flags & CODEC_FLAG_CBP_RD) && !avctx->trellis){
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423 av_log(avctx, AV_LOG_ERROR, "CBP RD needs trellis quant\n");
424 return -1;
425 }
426
427 if((s->flags & CODEC_FLAG_QP_RD) && s->avctx->mb_decision != FF_MB_DECISION_RD){
428 av_log(avctx, AV_LOG_ERROR, "QP RD needs mbd=2\n");
429 return -1;
430 }
431
432 if(s->avctx->scenechange_threshold < 1000000000 && (s->flags & CODEC_FLAG_CLOSED_GOP)){
7ce68923 433 av_log(avctx, AV_LOG_ERROR, "closed gop with scene change detection are not supported yet, set threshold to 1000000000\n");
3ada94ba
BF
434 return -1;
435 }
436
437 if((s->flags2 & CODEC_FLAG2_INTRA_VLC) && s->codec_id != CODEC_ID_MPEG2VIDEO){
438 av_log(avctx, AV_LOG_ERROR, "intra vlc table not supported by codec\n");
439 return -1;
440 }
441
442 if(s->flags & CODEC_FLAG_LOW_DELAY){
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MN
443 if (s->codec_id != CODEC_ID_MPEG2VIDEO){
444 av_log(avctx, AV_LOG_ERROR, "low delay forcing is only available for mpeg2\n");
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445 return -1;
446 }
447 if (s->max_b_frames != 0){
448 av_log(avctx, AV_LOG_ERROR, "b frames cannot be used with low delay\n");
449 return -1;
450 }
451 }
452
453 if(s->q_scale_type == 1){
454 if(s->codec_id != CODEC_ID_MPEG2VIDEO){
455 av_log(avctx, AV_LOG_ERROR, "non linear quant is only available for mpeg2\n");
456 return -1;
457 }
458 if(avctx->qmax > 12){
459 av_log(avctx, AV_LOG_ERROR, "non linear quant only supports qmax <= 12 currently\n");
460 return -1;
461 }
462 }
463
464 if(s->avctx->thread_count > 1 && s->codec_id != CODEC_ID_MPEG4
465 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO
466 && (s->codec_id != CODEC_ID_H263P || !(s->flags & CODEC_FLAG_H263P_SLICE_STRUCT))){
467 av_log(avctx, AV_LOG_ERROR, "multi threaded encoding not supported by codec\n");
468 return -1;
469 }
470
471 if(s->avctx->thread_count > 1)
472 s->rtp_mode= 1;
473
474 if(!avctx->time_base.den || !avctx->time_base.num){
475 av_log(avctx, AV_LOG_ERROR, "framerate not set\n");
476 return -1;
477 }
478
479 i= (INT_MAX/2+128)>>8;
480 if(avctx->me_threshold >= i){
481 av_log(avctx, AV_LOG_ERROR, "me_threshold too large, max is %d\n", i - 1);
482 return -1;
483 }
484 if(avctx->mb_threshold >= i){
485 av_log(avctx, AV_LOG_ERROR, "mb_threshold too large, max is %d\n", i - 1);
486 return -1;
487 }
488
489 if(avctx->b_frame_strategy && (avctx->flags&CODEC_FLAG_PASS2)){
490 av_log(avctx, AV_LOG_INFO, "notice: b_frame_strategy only affects the first pass\n");
491 avctx->b_frame_strategy = 0;
492 }
493
494 i= ff_gcd(avctx->time_base.den, avctx->time_base.num);
495 if(i > 1){
496 av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n");
497 avctx->time_base.den /= i;
498 avctx->time_base.num /= i;
499// return -1;
500 }
501
502 if(s->codec_id==CODEC_ID_MJPEG){
503 s->intra_quant_bias= 1<<(QUANT_BIAS_SHIFT-1); //(a + x/2)/x
504 s->inter_quant_bias= 0;
505 }else if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO){
506 s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x
507 s->inter_quant_bias= 0;
508 }else{
509 s->intra_quant_bias=0;
510 s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x
511 }
512
513 if(avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
514 s->intra_quant_bias= avctx->intra_quant_bias;
515 if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)
516 s->inter_quant_bias= avctx->inter_quant_bias;
517
518 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift);
519
520 if(avctx->codec_id == CODEC_ID_MPEG4 && s->avctx->time_base.den > (1<<16)-1){
521 av_log(avctx, AV_LOG_ERROR, "timebase not supported by mpeg 4 standard\n");
522 return -1;
523 }
524 s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1;
525
526 switch(avctx->codec->id) {
527 case CODEC_ID_MPEG1VIDEO:
528 s->out_format = FMT_MPEG1;
529 s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
530 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
531 break;
532 case CODEC_ID_MPEG2VIDEO:
533 s->out_format = FMT_MPEG1;
534 s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
535 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
536 s->rtp_mode= 1;
537 break;
538 case CODEC_ID_LJPEG:
539 case CODEC_ID_MJPEG:
540 s->out_format = FMT_MJPEG;
541 s->intra_only = 1; /* force intra only for jpeg */
542 s->mjpeg_vsample[0] = 2;
543 s->mjpeg_vsample[1] = 2>>chroma_v_shift;
544 s->mjpeg_vsample[2] = 2>>chroma_v_shift;
545 s->mjpeg_hsample[0] = 2;
546 s->mjpeg_hsample[1] = 2>>chroma_h_shift;
547 s->mjpeg_hsample[2] = 2>>chroma_h_shift;
548 if (!(ENABLE_MJPEG_ENCODER || ENABLE_LJPEG_ENCODER)
549 || ff_mjpeg_encode_init(s) < 0)
550 return -1;
551 avctx->delay=0;
552 s->low_delay=1;
553 break;
554 case CODEC_ID_H261:
555 if (!ENABLE_H261_ENCODER) return -1;
556 if (ff_h261_get_picture_format(s->width, s->height) < 0) {
557 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);
558 return -1;
559 }
560 s->out_format = FMT_H261;
561 avctx->delay=0;
562 s->low_delay=1;
563 break;
564 case CODEC_ID_H263:
eb75a698 565 if (!ENABLE_H263_ENCODER) return -1;
3ada94ba
BF
566 if (h263_get_picture_format(s->width, s->height) == 7) {
567 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);
568 return -1;
569 }
570 s->out_format = FMT_H263;
571 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
572 avctx->delay=0;
573 s->low_delay=1;
574 break;
575 case CODEC_ID_H263P:
576 s->out_format = FMT_H263;
577 s->h263_plus = 1;
578 /* Fx */
579 s->umvplus = (avctx->flags & CODEC_FLAG_H263P_UMV) ? 1:0;
580 s->h263_aic= (avctx->flags & CODEC_FLAG_AC_PRED) ? 1:0;
581 s->modified_quant= s->h263_aic;
582 s->alt_inter_vlc= (avctx->flags & CODEC_FLAG_H263P_AIV) ? 1:0;
583 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
584 s->loop_filter= (avctx->flags & CODEC_FLAG_LOOP_FILTER) ? 1:0;
585 s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
586 s->h263_slice_structured= (s->flags & CODEC_FLAG_H263P_SLICE_STRUCT) ? 1:0;
587
588 /* /Fx */
589 /* These are just to be sure */
590 avctx->delay=0;
591 s->low_delay=1;
592 break;
593 case CODEC_ID_FLV1:
594 s->out_format = FMT_H263;
595 s->h263_flv = 2; /* format = 1; 11-bit codes */
596 s->unrestricted_mv = 1;
597 s->rtp_mode=0; /* don't allow GOB */
598 avctx->delay=0;
599 s->low_delay=1;
600 break;
601 case CODEC_ID_RV10:
602 s->out_format = FMT_H263;
603 avctx->delay=0;
604 s->low_delay=1;
605 break;
606 case CODEC_ID_RV20:
607 s->out_format = FMT_H263;
608 avctx->delay=0;
609 s->low_delay=1;
610 s->modified_quant=1;
611 s->h263_aic=1;
612 s->h263_plus=1;
613 s->loop_filter=1;
614 s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
615 break;
616 case CODEC_ID_MPEG4:
617 s->out_format = FMT_H263;
618 s->h263_pred = 1;
619 s->unrestricted_mv = 1;
620 s->low_delay= s->max_b_frames ? 0 : 1;
621 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
622 break;
623 case CODEC_ID_MSMPEG4V1:
624 s->out_format = FMT_H263;
625 s->h263_msmpeg4 = 1;
626 s->h263_pred = 1;
627 s->unrestricted_mv = 1;
628 s->msmpeg4_version= 1;
629 avctx->delay=0;
630 s->low_delay=1;
631 break;
632 case CODEC_ID_MSMPEG4V2:
633 s->out_format = FMT_H263;
634 s->h263_msmpeg4 = 1;
635 s->h263_pred = 1;
636 s->unrestricted_mv = 1;
637 s->msmpeg4_version= 2;
638 avctx->delay=0;
639 s->low_delay=1;
640 break;
641 case CODEC_ID_MSMPEG4V3:
642 s->out_format = FMT_H263;
643 s->h263_msmpeg4 = 1;
644 s->h263_pred = 1;
645 s->unrestricted_mv = 1;
646 s->msmpeg4_version= 3;
647 s->flipflop_rounding=1;
648 avctx->delay=0;
649 s->low_delay=1;
650 break;
651 case CODEC_ID_WMV1:
652 s->out_format = FMT_H263;
653 s->h263_msmpeg4 = 1;
654 s->h263_pred = 1;
655 s->unrestricted_mv = 1;
656 s->msmpeg4_version= 4;
657 s->flipflop_rounding=1;
658 avctx->delay=0;
659 s->low_delay=1;
660 break;
661 case CODEC_ID_WMV2:
662 s->out_format = FMT_H263;
663 s->h263_msmpeg4 = 1;
664 s->h263_pred = 1;
665 s->unrestricted_mv = 1;
666 s->msmpeg4_version= 5;
667 s->flipflop_rounding=1;
668 avctx->delay=0;
669 s->low_delay=1;
670 break;
671 default:
672 return -1;
673 }
674
675 avctx->has_b_frames= !s->low_delay;
676
677 s->encoding = 1;
678
679 /* init */
680 if (MPV_common_init(s) < 0)
681 return -1;
682
53727262
AJ
683 if(!s->dct_quantize)
684 s->dct_quantize = dct_quantize_c;
685 if(!s->denoise_dct)
686 s->denoise_dct = denoise_dct_c;
687 s->fast_dct_quantize = s->dct_quantize;
febea2f2 688 if(avctx->trellis)
53727262
AJ
689 s->dct_quantize = dct_quantize_trellis_c;
690
eb75a698 691 if((ENABLE_H263P_ENCODER || ENABLE_RV20_ENCODER) && s->modified_quant)
3ada94ba
BF
692 s->chroma_qscale_table= ff_h263_chroma_qscale_table;
693 s->progressive_frame=
694 s->progressive_sequence= !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN));
695 s->quant_precision=5;
696
697 ff_set_cmp(&s->dsp, s->dsp.ildct_cmp, s->avctx->ildct_cmp);
698 ff_set_cmp(&s->dsp, s->dsp.frame_skip_cmp, s->avctx->frame_skip_cmp);
699
700 if (ENABLE_H261_ENCODER && s->out_format == FMT_H261)
701 ff_h261_encode_init(s);
eb75a698 702 if (ENABLE_ANY_H263_ENCODER && s->out_format == FMT_H263)
3ada94ba
BF
703 h263_encode_init(s);
704 if (ENABLE_MSMPEG4_ENCODER && s->msmpeg4_version)
705 ff_msmpeg4_encode_init(s);
a6bc5731
AJ
706 if ((ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER)
707 && s->out_format == FMT_MPEG1)
3ada94ba
BF
708 ff_mpeg1_encode_init(s);
709
710 /* init q matrix */
711 for(i=0;i<64;i++) {
712 int j= s->dsp.idct_permutation[i];
eb75a698 713 if(ENABLE_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){
3ada94ba
BF
714 s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
715 s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
716 }else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){
717 s->intra_matrix[j] =
718 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
719 }else
720 { /* mpeg1/2 */
721 s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
722 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
723 }
724 if(s->avctx->intra_matrix)
725 s->intra_matrix[j] = s->avctx->intra_matrix[i];
726 if(s->avctx->inter_matrix)
727 s->inter_matrix[j] = s->avctx->inter_matrix[i];
728 }
729
730 /* precompute matrix */
731 /* for mjpeg, we do include qscale in the matrix */
732 if (s->out_format != FMT_MJPEG) {
69cea75f 733 ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
3ada94ba 734 s->intra_matrix, s->intra_quant_bias, avctx->qmin, 31, 1);
69cea75f 735 ff_convert_matrix(&s->dsp, s->q_inter_matrix, s->q_inter_matrix16,
3ada94ba
BF
736 s->inter_matrix, s->inter_quant_bias, avctx->qmin, 31, 0);
737 }
738
739 if(ff_rate_control_init(s) < 0)
740 return -1;
741
742 return 0;
743}
744
98a6fff9 745av_cold int MPV_encode_end(AVCodecContext *avctx)
3ada94ba
BF
746{
747 MpegEncContext *s = avctx->priv_data;
748
749 ff_rate_control_uninit(s);
750
751 MPV_common_end(s);
752 if ((ENABLE_MJPEG_ENCODER || ENABLE_LJPEG_ENCODER) && s->out_format == FMT_MJPEG)
753 ff_mjpeg_encode_close(s);
754
755 av_freep(&avctx->extradata);
756
757 return 0;
758}
759
760static int get_sae(uint8_t *src, int ref, int stride){
761 int x,y;
762 int acc=0;
763
764 for(y=0; y<16; y++){
765 for(x=0; x<16; x++){
766 acc+= FFABS(src[x+y*stride] - ref);
767 }
768 }
769
770 return acc;
771}
772
773static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride){
774 int x, y, w, h;
775 int acc=0;
776
777 w= s->width &~15;
778 h= s->height&~15;
779
780 for(y=0; y<h; y+=16){
781 for(x=0; x<w; x+=16){
782 int offset= x + y*stride;
783 int sad = s->dsp.sad[0](NULL, src + offset, ref + offset, stride, 16);
784 int mean= (s->dsp.pix_sum(src + offset, stride) + 128)>>8;
785 int sae = get_sae(src + offset, mean, stride);
786
787 acc+= sae + 500 < sad;
788 }
789 }
790 return acc;
791}
792
793
794static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
795 AVFrame *pic=NULL;
796 int64_t pts;
797 int i;
798 const int encoding_delay= s->max_b_frames;
799 int direct=1;
800
801 if(pic_arg){
802 pts= pic_arg->pts;
803 pic_arg->display_picture_number= s->input_picture_number++;
804
805 if(pts != AV_NOPTS_VALUE){
806 if(s->user_specified_pts != AV_NOPTS_VALUE){
807 int64_t time= pts;
808 int64_t last= s->user_specified_pts;
809
810 if(time <= last){
811 av_log(s->avctx, AV_LOG_ERROR, "Error, Invalid timestamp=%"PRId64", last=%"PRId64"\n", pts, s->user_specified_pts);
812 return -1;
813 }
814 }
815 s->user_specified_pts= pts;
816 }else{
817 if(s->user_specified_pts != AV_NOPTS_VALUE){
818 s->user_specified_pts=
819 pts= s->user_specified_pts + 1;
820 av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%"PRId64")\n", pts);
821 }else{
822 pts= pic_arg->display_picture_number;
823 }
824 }
825 }
826
827 if(pic_arg){
828 if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0;
829 if(pic_arg->linesize[0] != s->linesize) direct=0;
830 if(pic_arg->linesize[1] != s->uvlinesize) direct=0;
831 if(pic_arg->linesize[2] != s->uvlinesize) direct=0;
832
833// av_log(AV_LOG_DEBUG, "%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize);
834
835 if(direct){
836 i= ff_find_unused_picture(s, 1);
837
838 pic= (AVFrame*)&s->picture[i];
839 pic->reference= 3;
840
841 for(i=0; i<4; i++){
842 pic->data[i]= pic_arg->data[i];
843 pic->linesize[i]= pic_arg->linesize[i];
844 }
845 alloc_picture(s, (Picture*)pic, 1);
846 }else{
847 i= ff_find_unused_picture(s, 0);
848
849 pic= (AVFrame*)&s->picture[i];
850 pic->reference= 3;
851
852 alloc_picture(s, (Picture*)pic, 0);
853
854 if( pic->data[0] + INPLACE_OFFSET == pic_arg->data[0]
855 && pic->data[1] + INPLACE_OFFSET == pic_arg->data[1]
856 && pic->data[2] + INPLACE_OFFSET == pic_arg->data[2]){
857 // empty
858 }else{
859 int h_chroma_shift, v_chroma_shift;
860 avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
861
862 for(i=0; i<3; i++){
863 int src_stride= pic_arg->linesize[i];
864 int dst_stride= i ? s->uvlinesize : s->linesize;
865 int h_shift= i ? h_chroma_shift : 0;
866 int v_shift= i ? v_chroma_shift : 0;
867 int w= s->width >>h_shift;
868 int h= s->height>>v_shift;
869 uint8_t *src= pic_arg->data[i];
870 uint8_t *dst= pic->data[i];
871
872 if(!s->avctx->rc_buffer_size)
873 dst +=INPLACE_OFFSET;
874
875 if(src_stride==dst_stride)
876 memcpy(dst, src, src_stride*h);
877 else{
878 while(h--){
879 memcpy(dst, src, w);
880 dst += dst_stride;
881 src += src_stride;
882 }
883 }
884 }
885 }
886 }
887 copy_picture_attributes(s, pic, pic_arg);
888 pic->pts= pts; //we set this here to avoid modifiying pic_arg
889 }
890
891 /* shift buffer entries */
892 for(i=1; i<MAX_PICTURE_COUNT /*s->encoding_delay+1*/; i++)
893 s->input_picture[i-1]= s->input_picture[i];
894
895 s->input_picture[encoding_delay]= (Picture*)pic;
896
897 return 0;
898}
899
900static int skip_check(MpegEncContext *s, Picture *p, Picture *ref){
901 int x, y, plane;
902 int score=0;
903 int64_t score64=0;
904
905 for(plane=0; plane<3; plane++){
906 const int stride= p->linesize[plane];
907 const int bw= plane ? 1 : 2;
908 for(y=0; y<s->mb_height*bw; y++){
909 for(x=0; x<s->mb_width*bw; x++){
910 int off= p->type == FF_BUFFER_TYPE_SHARED ? 0: 16;
911 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);
912
913 switch(s->avctx->frame_skip_exp){
914 case 0: score= FFMAX(score, v); break;
915 case 1: score+= FFABS(v);break;
916 case 2: score+= v*v;break;
917 case 3: score64+= FFABS(v*v*(int64_t)v);break;
918 case 4: score64+= v*v*(int64_t)(v*v);break;
919 }
920 }
921 }
922 }
923
924 if(score) score64= score;
925
926 if(score64 < s->avctx->frame_skip_threshold)
927 return 1;
928 if(score64 < ((s->avctx->frame_skip_factor * (int64_t)s->lambda)>>8))
929 return 1;
930 return 0;
931}
932
933static int estimate_best_b_count(MpegEncContext *s){
934 AVCodec *codec= avcodec_find_encoder(s->avctx->codec_id);
935 AVCodecContext *c= avcodec_alloc_context();
936 AVFrame input[FF_MAX_B_FRAMES+2];
937 const int scale= s->avctx->brd_scale;
938 int i, j, out_size, p_lambda, b_lambda, lambda2;
939 int outbuf_size= s->width * s->height; //FIXME
940 uint8_t *outbuf= av_malloc(outbuf_size);
941 int64_t best_rd= INT64_MAX;
942 int best_b_count= -1;
943
944 assert(scale>=0 && scale <=3);
945
946// emms_c();
9701840b
AJ
947 p_lambda= s->last_lambda_for[FF_P_TYPE]; //s->next_picture_ptr->quality;
948 b_lambda= s->last_lambda_for[FF_B_TYPE]; //p_lambda *FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset;
3ada94ba
BF
949 if(!b_lambda) b_lambda= p_lambda; //FIXME we should do this somewhere else
950 lambda2= (b_lambda*b_lambda + (1<<FF_LAMBDA_SHIFT)/2 ) >> FF_LAMBDA_SHIFT;
951
952 c->width = s->width >> scale;
953 c->height= s->height>> scale;
954 c->flags= CODEC_FLAG_QSCALE | CODEC_FLAG_PSNR | CODEC_FLAG_INPUT_PRESERVED /*| CODEC_FLAG_EMU_EDGE*/;
955 c->flags|= s->avctx->flags & CODEC_FLAG_QPEL;
956 c->mb_decision= s->avctx->mb_decision;
957 c->me_cmp= s->avctx->me_cmp;
958 c->mb_cmp= s->avctx->mb_cmp;
959 c->me_sub_cmp= s->avctx->me_sub_cmp;
960 c->pix_fmt = PIX_FMT_YUV420P;
961 c->time_base= s->avctx->time_base;
962 c->max_b_frames= s->max_b_frames;
963
964 if (avcodec_open(c, codec) < 0)
965 return -1;
966
967 for(i=0; i<s->max_b_frames+2; i++){
968 int ysize= c->width*c->height;
969 int csize= (c->width/2)*(c->height/2);
970 Picture pre_input, *pre_input_ptr= i ? s->input_picture[i-1] : s->next_picture_ptr;
971
972 avcodec_get_frame_defaults(&input[i]);
973 input[i].data[0]= av_malloc(ysize + 2*csize);
974 input[i].data[1]= input[i].data[0] + ysize;
975 input[i].data[2]= input[i].data[1] + csize;
976 input[i].linesize[0]= c->width;
977 input[i].linesize[1]=
978 input[i].linesize[2]= c->width/2;
979
980 if(pre_input_ptr && (!i || s->input_picture[i-1])) {
981 pre_input= *pre_input_ptr;
982
983 if(pre_input.type != FF_BUFFER_TYPE_SHARED && i) {
984 pre_input.data[0]+=INPLACE_OFFSET;
985 pre_input.data[1]+=INPLACE_OFFSET;
986 pre_input.data[2]+=INPLACE_OFFSET;
987 }
988
989 s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0], pre_input.data[0], pre_input.linesize[0], c->width, c->height);
990 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);
991 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);
992 }
993 }
994
995 for(j=0; j<s->max_b_frames+1; j++){
996 int64_t rd=0;
997
998 if(!s->input_picture[j])
999 break;
1000
1001 c->error[0]= c->error[1]= c->error[2]= 0;
1002
9701840b 1003 input[0].pict_type= FF_I_TYPE;
3ada94ba
BF
1004 input[0].quality= 1 * FF_QP2LAMBDA;
1005 out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[0]);
1006// rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT;
1007
1008 for(i=0; i<s->max_b_frames+1; i++){
1009 int is_p= i % (j+1) == j || i==s->max_b_frames;
1010
9701840b 1011 input[i+1].pict_type= is_p ? FF_P_TYPE : FF_B_TYPE;
3ada94ba
BF
1012 input[i+1].quality= is_p ? p_lambda : b_lambda;
1013 out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[i+1]);
1014 rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1015 }
1016
1017 /* get the delayed frames */
1018 while(out_size){
1019 out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);
1020 rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1021 }
1022
1023 rd += c->error[0] + c->error[1] + c->error[2];
1024
1025 if(rd < best_rd){
1026 best_rd= rd;
1027 best_b_count= j;
1028 }
1029 }
1030
1031 av_freep(&outbuf);
1032 avcodec_close(c);
1033 av_freep(&c);
1034
1035 for(i=0; i<s->max_b_frames+2; i++){
1036 av_freep(&input[i].data[0]);
1037 }
1038
1039 return best_b_count;
1040}
1041
1042static void select_input_picture(MpegEncContext *s){
1043 int i;
1044
1045 for(i=1; i<MAX_PICTURE_COUNT; i++)
1046 s->reordered_input_picture[i-1]= s->reordered_input_picture[i];
1047 s->reordered_input_picture[MAX_PICTURE_COUNT-1]= NULL;
1048
1049 /* set next picture type & ordering */
1050 if(s->reordered_input_picture[0]==NULL && s->input_picture[0]){
1051 if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture_ptr==NULL || s->intra_only){
1052 s->reordered_input_picture[0]= s->input_picture[0];
9701840b 1053 s->reordered_input_picture[0]->pict_type= FF_I_TYPE;
3ada94ba
BF
1054 s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1055 }else{
1056 int b_frames;
1057
1058 if(s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor){
1059 if(s->picture_in_gop_number < s->gop_size && skip_check(s, s->input_picture[0], s->next_picture_ptr)){
1060 //FIXME check that te gop check above is +-1 correct
1061//av_log(NULL, AV_LOG_DEBUG, "skip %p %"PRId64"\n", s->input_picture[0]->data[0], s->input_picture[0]->pts);
1062
1063 if(s->input_picture[0]->type == FF_BUFFER_TYPE_SHARED){
1064 for(i=0; i<4; i++)
1065 s->input_picture[0]->data[i]= NULL;
1066 s->input_picture[0]->type= 0;
1067 }else{
1068 assert( s->input_picture[0]->type==FF_BUFFER_TYPE_USER
1069 || s->input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1070
1071 s->avctx->release_buffer(s->avctx, (AVFrame*)s->input_picture[0]);
1072 }
1073
1074 emms_c();
1075 ff_vbv_update(s, 0);
1076
1077 goto no_output_pic;
1078 }
1079 }
1080
1081 if(s->flags&CODEC_FLAG_PASS2){
1082 for(i=0; i<s->max_b_frames+1; i++){
1083 int pict_num= s->input_picture[0]->display_picture_number + i;
1084
1085 if(pict_num >= s->rc_context.num_entries)
1086 break;
1087 if(!s->input_picture[i]){
9701840b 1088 s->rc_context.entry[pict_num-1].new_pict_type = FF_P_TYPE;
3ada94ba
BF
1089 break;
1090 }
1091
1092 s->input_picture[i]->pict_type=
1093 s->rc_context.entry[pict_num].new_pict_type;
1094 }
1095 }
1096
1097 if(s->avctx->b_frame_strategy==0){
1098 b_frames= s->max_b_frames;
1099 while(b_frames && !s->input_picture[b_frames]) b_frames--;
1100 }else if(s->avctx->b_frame_strategy==1){
1101 for(i=1; i<s->max_b_frames+1; i++){
1102 if(s->input_picture[i] && s->input_picture[i]->b_frame_score==0){
1103 s->input_picture[i]->b_frame_score=
1104 get_intra_count(s, s->input_picture[i ]->data[0],
1105 s->input_picture[i-1]->data[0], s->linesize) + 1;
1106 }
1107 }
1108 for(i=0; i<s->max_b_frames+1; i++){
1109 if(s->input_picture[i]==NULL || s->input_picture[i]->b_frame_score - 1 > s->mb_num/s->avctx->b_sensitivity) break;
1110 }
1111
1112 b_frames= FFMAX(0, i-1);
1113
1114 /* reset scores */
1115 for(i=0; i<b_frames+1; i++){
1116 s->input_picture[i]->b_frame_score=0;
1117 }
1118 }else if(s->avctx->b_frame_strategy==2){
1119 b_frames= estimate_best_b_count(s);
1120 }else{
1121 av_log(s->avctx, AV_LOG_ERROR, "illegal b frame strategy\n");
1122 b_frames=0;
1123 }
1124
1125 emms_c();
1126//static int b_count=0;
1127//b_count+= b_frames;
1128//av_log(s->avctx, AV_LOG_DEBUG, "b_frames: %d\n", b_count);
1129
1130 for(i= b_frames - 1; i>=0; i--){
1131 int type= s->input_picture[i]->pict_type;
9701840b 1132 if(type && type != FF_B_TYPE)
3ada94ba
BF
1133 b_frames= i;
1134 }
9701840b 1135 if(s->input_picture[b_frames]->pict_type == FF_B_TYPE && b_frames == s->max_b_frames){
3ada94ba
BF
1136 av_log(s->avctx, AV_LOG_ERROR, "warning, too many b frames in a row\n");
1137 }
1138
1139 if(s->picture_in_gop_number + b_frames >= s->gop_size){
1140 if((s->flags2 & CODEC_FLAG2_STRICT_GOP) && s->gop_size > s->picture_in_gop_number){
1141 b_frames= s->gop_size - s->picture_in_gop_number - 1;
1142 }else{
1143 if(s->flags & CODEC_FLAG_CLOSED_GOP)
1144 b_frames=0;
9701840b 1145 s->input_picture[b_frames]->pict_type= FF_I_TYPE;
3ada94ba
BF
1146 }
1147 }
1148
1149 if( (s->flags & CODEC_FLAG_CLOSED_GOP)
1150 && b_frames
9701840b 1151 && s->input_picture[b_frames]->pict_type== FF_I_TYPE)
3ada94ba
BF
1152 b_frames--;
1153
1154 s->reordered_input_picture[0]= s->input_picture[b_frames];
9701840b
AJ
1155 if(s->reordered_input_picture[0]->pict_type != FF_I_TYPE)
1156 s->reordered_input_picture[0]->pict_type= FF_P_TYPE;
3ada94ba
BF
1157 s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1158 for(i=0; i<b_frames; i++){
1159 s->reordered_input_picture[i+1]= s->input_picture[i];
9701840b 1160 s->reordered_input_picture[i+1]->pict_type= FF_B_TYPE;
3ada94ba
BF
1161 s->reordered_input_picture[i+1]->coded_picture_number= s->coded_picture_number++;
1162 }
1163 }
1164 }
1165no_output_pic:
1166 if(s->reordered_input_picture[0]){
9701840b 1167 s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=FF_B_TYPE ? 3 : 0;
3ada94ba
BF
1168
1169 copy_picture(&s->new_picture, s->reordered_input_picture[0]);
1170
1171 if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_SHARED || s->avctx->rc_buffer_size){
1172 // input is a shared pix, so we can't modifiy it -> alloc a new one & ensure that the shared one is reuseable
1173
1174 int i= ff_find_unused_picture(s, 0);
1175 Picture *pic= &s->picture[i];
1176
1177 pic->reference = s->reordered_input_picture[0]->reference;
1178 alloc_picture(s, pic, 0);
1179
1180 /* mark us unused / free shared pic */
1181 if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_INTERNAL)
1182 s->avctx->release_buffer(s->avctx, (AVFrame*)s->reordered_input_picture[0]);
1183 for(i=0; i<4; i++)
1184 s->reordered_input_picture[0]->data[i]= NULL;
1185 s->reordered_input_picture[0]->type= 0;
1186
1187 copy_picture_attributes(s, (AVFrame*)pic, (AVFrame*)s->reordered_input_picture[0]);
1188
1189 s->current_picture_ptr= pic;
1190 }else{
1191 // input is not a shared pix -> reuse buffer for current_pix
1192
1193 assert( s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
1194 || s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1195
1196 s->current_picture_ptr= s->reordered_input_picture[0];
1197 for(i=0; i<4; i++){
1198 s->new_picture.data[i]+= INPLACE_OFFSET;
1199 }
1200 }
1201 copy_picture(&s->current_picture, s->current_picture_ptr);
1202
1203 s->picture_number= s->new_picture.display_picture_number;
1204//printf("dpn:%d\n", s->picture_number);
1205 }else{
1206 memset(&s->new_picture, 0, sizeof(Picture));
1207 }
1208}
1209
1210int MPV_encode_picture(AVCodecContext *avctx,
1211 unsigned char *buf, int buf_size, void *data)
1212{
1213 MpegEncContext *s = avctx->priv_data;
1214 AVFrame *pic_arg = data;
1215 int i, stuffing_count;
1216
1217 for(i=0; i<avctx->thread_count; i++){
1218 int start_y= s->thread_context[i]->start_mb_y;
1219 int end_y= s->thread_context[i]-> end_mb_y;
1220 int h= s->mb_height;
1221 uint8_t *start= buf + (size_t)(((int64_t) buf_size)*start_y/h);
1222 uint8_t *end = buf + (size_t)(((int64_t) buf_size)* end_y/h);
1223
1224 init_put_bits(&s->thread_context[i]->pb, start, end - start);
1225 }
1226
1227 s->picture_in_gop_number++;
1228
1229 if(load_input_picture(s, pic_arg) < 0)
1230 return -1;
1231
1232 select_input_picture(s);
1233
1234 /* output? */
1235 if(s->new_picture.data[0]){
1236 s->pict_type= s->new_picture.pict_type;
1237//emms_c();
1238//printf("qs:%f %f %d\n", s->new_picture.quality, s->current_picture.quality, s->qscale);
1239 MPV_frame_start(s, avctx);
1240vbv_retry:
1241 if (encode_picture(s, s->picture_number) < 0)
1242 return -1;
1243
1244 avctx->real_pict_num = s->picture_number;
1245 avctx->header_bits = s->header_bits;
1246 avctx->mv_bits = s->mv_bits;
1247 avctx->misc_bits = s->misc_bits;
1248 avctx->i_tex_bits = s->i_tex_bits;
1249 avctx->p_tex_bits = s->p_tex_bits;
1250 avctx->i_count = s->i_count;
1251 avctx->p_count = s->mb_num - s->i_count - s->skip_count; //FIXME f/b_count in avctx
1252 avctx->skip_count = s->skip_count;
1253
1254 MPV_frame_end(s);
1255
1256 if (ENABLE_MJPEG_ENCODER && s->out_format == FMT_MJPEG)
1257 ff_mjpeg_encode_picture_trailer(s);
1258
1259 if(avctx->rc_buffer_size){
1260 RateControlContext *rcc= &s->rc_context;
1261 int max_size= rcc->buffer_index/3;
1262
1263 if(put_bits_count(&s->pb) > max_size && s->lambda < s->avctx->lmax){
1264 s->next_lambda= FFMAX(s->lambda+1, s->lambda*(s->qscale+1) / s->qscale);
1265 if(s->adaptive_quant){
1266 int i;
1267 for(i=0; i<s->mb_height*s->mb_stride; i++)
1268 s->lambda_table[i]= FFMAX(s->lambda_table[i]+1, s->lambda_table[i]*(s->qscale+1) / s->qscale);
1269 }
1270 s->mb_skipped = 0; //done in MPV_frame_start()
9701840b 1271 if(s->pict_type==FF_P_TYPE){ //done in encode_picture() so we must undo it
3ada94ba
BF
1272 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
1273 s->no_rounding ^= 1;
1274 }
9701840b 1275 if(s->pict_type!=FF_B_TYPE){
3ada94ba
BF
1276 s->time_base= s->last_time_base;
1277 s->last_non_b_time= s->time - s->pp_time;
1278 }
1279// av_log(NULL, AV_LOG_ERROR, "R:%d ", s->next_lambda);
1280 for(i=0; i<avctx->thread_count; i++){
1281 PutBitContext *pb= &s->thread_context[i]->pb;
1282 init_put_bits(pb, pb->buf, pb->buf_end - pb->buf);
1283 }
1284 goto vbv_retry;
1285 }
1286
1287 assert(s->avctx->rc_max_rate);
1288 }
1289
1290 if(s->flags&CODEC_FLAG_PASS1)
1291 ff_write_pass1_stats(s);
1292
1293 for(i=0; i<4; i++){
1294 s->current_picture_ptr->error[i]= s->current_picture.error[i];
1295 avctx->error[i] += s->current_picture_ptr->error[i];
1296 }
1297
1298 if(s->flags&CODEC_FLAG_PASS1)
1299 assert(avctx->header_bits + avctx->mv_bits + avctx->misc_bits + avctx->i_tex_bits + avctx->p_tex_bits == put_bits_count(&s->pb));
1300 flush_put_bits(&s->pb);
1301 s->frame_bits = put_bits_count(&s->pb);
1302
1303 stuffing_count= ff_vbv_update(s, s->frame_bits);
1304 if(stuffing_count){
1305 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < stuffing_count + 50){
1306 av_log(s->avctx, AV_LOG_ERROR, "stuffing too large\n");
1307 return -1;
1308 }
1309
1310 switch(s->codec_id){
1311 case CODEC_ID_MPEG1VIDEO:
1312 case CODEC_ID_MPEG2VIDEO:
1313 while(stuffing_count--){
1314 put_bits(&s->pb, 8, 0);
1315 }
1316 break;
1317 case CODEC_ID_MPEG4:
1318 put_bits(&s->pb, 16, 0);
1319 put_bits(&s->pb, 16, 0x1C3);
1320 stuffing_count -= 4;
1321 while(stuffing_count--){
1322 put_bits(&s->pb, 8, 0xFF);
1323 }
1324 break;
1325 default:
1326 av_log(s->avctx, AV_LOG_ERROR, "vbv buffer overflow\n");
1327 }
1328 flush_put_bits(&s->pb);
1329 s->frame_bits = put_bits_count(&s->pb);
1330 }
1331
1332 /* update mpeg1/2 vbv_delay for CBR */
1333 if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && s->out_format == FMT_MPEG1
1334 && 90000LL * (avctx->rc_buffer_size-1) <= s->avctx->rc_max_rate*0xFFFFLL){
1335 int vbv_delay;
1336
1337 assert(s->repeat_first_field==0);
1338
1339 vbv_delay= lrintf(90000 * s->rc_context.buffer_index / s->avctx->rc_max_rate);
1340 assert(vbv_delay < 0xFFFF);
1341
1342 s->vbv_delay_ptr[0] &= 0xF8;
1343 s->vbv_delay_ptr[0] |= vbv_delay>>13;
1344 s->vbv_delay_ptr[1] = vbv_delay>>5;
1345 s->vbv_delay_ptr[2] &= 0x07;
1346 s->vbv_delay_ptr[2] |= vbv_delay<<3;
1347 }
1348 s->total_bits += s->frame_bits;
1349 avctx->frame_bits = s->frame_bits;
1350 }else{
1351 assert((pbBufPtr(&s->pb) == s->pb.buf));
1352 s->frame_bits=0;
1353 }
1354 assert((s->frame_bits&7)==0);
1355
1356 return s->frame_bits/8;
1357}
1358
1359static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold)
1360{
1361 static const char tab[64]=
1362 {3,2,2,1,1,1,1,1,
1363 1,1,1,1,1,1,1,1,
1364 1,1,1,1,1,1,1,1,
1365 0,0,0,0,0,0,0,0,
1366 0,0,0,0,0,0,0,0,
1367 0,0,0,0,0,0,0,0,
1368 0,0,0,0,0,0,0,0,
1369 0,0,0,0,0,0,0,0};
1370 int score=0;
1371 int run=0;
1372 int i;
1373 DCTELEM *block= s->block[n];
1374 const int last_index= s->block_last_index[n];
1375 int skip_dc;
1376
1377 if(threshold<0){
1378 skip_dc=0;
1379 threshold= -threshold;
1380 }else
1381 skip_dc=1;
1382
bd107136 1383 /* Are all we could set to zero already zero? */
3ada94ba
BF
1384 if(last_index<=skip_dc - 1) return;
1385
1386 for(i=0; i<=last_index; i++){
1387 const int j = s->intra_scantable.permutated[i];
1388 const int level = FFABS(block[j]);
1389 if(level==1){
1390 if(skip_dc && i==0) continue;
1391 score+= tab[run];
1392 run=0;
1393 }else if(level>1){
1394 return;
1395 }else{
1396 run++;
1397 }
1398 }
1399 if(score >= threshold) return;
1400 for(i=skip_dc; i<=last_index; i++){
1401 const int j = s->intra_scantable.permutated[i];
1402 block[j]=0;
1403 }
1404 if(block[0]) s->block_last_index[n]= 0;
1405 else s->block_last_index[n]= -1;
1406}
1407
1408static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1409{
1410 int i;
1411 const int maxlevel= s->max_qcoeff;
1412 const int minlevel= s->min_qcoeff;
1413 int overflow=0;
1414
1415 if(s->mb_intra){
1416 i=1; //skip clipping of intra dc
1417 }else
1418 i=0;
1419
1420 for(;i<=last_index; i++){
1421 const int j= s->intra_scantable.permutated[i];
1422 int level = block[j];
1423
1424 if (level>maxlevel){
1425 level=maxlevel;
1426 overflow++;
1427 }else if(level<minlevel){
1428 level=minlevel;
1429 overflow++;
1430 }
1431
1432 block[j]= level;
1433 }
1434
1435 if(overflow && s->avctx->mb_decision == FF_MB_DECISION_SIMPLE)
1436 av_log(s->avctx, AV_LOG_INFO, "warning, clipping %d dct coefficients to %d..%d\n", overflow, minlevel, maxlevel);
1437}
1438
f073a393 1439static void get_visual_weight(int16_t *weight, uint8_t *ptr, int stride){
3ada94ba
BF
1440 int x, y;
1441//FIXME optimize
1442 for(y=0; y<8; y++){
1443 for(x=0; x<8; x++){
1444 int x2, y2;
1445 int sum=0;
1446 int sqr=0;
1447 int count=0;
1448
1449 for(y2= FFMAX(y-1, 0); y2 < FFMIN(8, y+2); y2++){
1450 for(x2= FFMAX(x-1, 0); x2 < FFMIN(8, x+2); x2++){
1451 int v= ptr[x2 + y2*stride];
1452 sum += v;
1453 sqr += v*v;
1454 count++;
1455 }
1456 }
1457 weight[x + 8*y]= (36*ff_sqrt(count*sqr - sum*sum)) / count;
1458 }
1459 }
1460}
1461
1462static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count)
1463{
1464 int16_t weight[8][64];
1465 DCTELEM orig[8][64];
1466 const int mb_x= s->mb_x;
1467 const int mb_y= s->mb_y;
1468 int i;
1469 int skip_dct[8];
1470 int dct_offset = s->linesize*8; //default for progressive frames
1471 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1472 int wrap_y, wrap_c;
1473
1474 for(i=0; i<mb_block_count; i++) skip_dct[i]=s->skipdct;
1475
1476 if(s->adaptive_quant){
1477 const int last_qp= s->qscale;
1478 const int mb_xy= mb_x + mb_y*s->mb_stride;
1479
1480 s->lambda= s->lambda_table[mb_xy];
1481 update_qscale(s);
1482
1483 if(!(s->flags&CODEC_FLAG_QP_RD)){
1484 s->qscale= s->current_picture_ptr->qscale_table[mb_xy];
1485 s->dquant= s->qscale - last_qp;
1486
1487 if(s->out_format==FMT_H263){
1488 s->dquant= av_clip(s->dquant, -2, 2);
1489
1490 if(s->codec_id==CODEC_ID_MPEG4){
1491 if(!s->mb_intra){
9701840b 1492 if(s->pict_type == FF_B_TYPE){
3ada94ba
BF
1493 if(s->dquant&1 || s->mv_dir&MV_DIRECT)
1494 s->dquant= 0;
1495 }
1496 if(s->mv_type==MV_TYPE_8X8)
1497 s->dquant=0;
1498 }
1499 }
1500 }
1501 }
1502 ff_set_qscale(s, last_qp + s->dquant);
1503 }else if(s->flags&CODEC_FLAG_QP_RD)
1504 ff_set_qscale(s, s->qscale + s->dquant);
1505
1506 wrap_y = s->linesize;
1507 wrap_c = s->uvlinesize;
1508 ptr_y = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
1509 ptr_cb = s->new_picture.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1510 ptr_cr = s->new_picture.data[2] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1511
1512 if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
1513 uint8_t *ebuf= s->edge_emu_buffer + 32;
1514 ff_emulated_edge_mc(ebuf , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width , s->height);
1515 ptr_y= ebuf;
1516 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);
1517 ptr_cb= ebuf+18*wrap_y;
1518 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);
1519 ptr_cr= ebuf+18*wrap_y+8;
1520 }
1521
1522 if (s->mb_intra) {
1523 if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1524 int progressive_score, interlaced_score;
1525
1526 s->interlaced_dct=0;
1527 progressive_score= s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y, 8)
1528 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y*8, NULL, wrap_y, 8) - 400;
1529
1530 if(progressive_score > 0){
1531 interlaced_score = s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y*2, 8)
1532 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y , NULL, wrap_y*2, 8);
1533 if(progressive_score > interlaced_score){
1534 s->interlaced_dct=1;
1535
1536 dct_offset= wrap_y;
1537 wrap_y<<=1;
1538 if (s->chroma_format == CHROMA_422)
1539 wrap_c<<=1;
1540 }
1541 }
1542 }
1543
1544 s->dsp.get_pixels(s->block[0], ptr_y , wrap_y);
1545 s->dsp.get_pixels(s->block[1], ptr_y + 8, wrap_y);
1546 s->dsp.get_pixels(s->block[2], ptr_y + dct_offset , wrap_y);
1547 s->dsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y);
1548
1549 if(s->flags&CODEC_FLAG_GRAY){
1550 skip_dct[4]= 1;
1551 skip_dct[5]= 1;
1552 }else{
1553 s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c);
1554 s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c);
1555 if(!s->chroma_y_shift){ /* 422 */
1556 s->dsp.get_pixels(s->block[6], ptr_cb + (dct_offset>>1), wrap_c);
1557 s->dsp.get_pixels(s->block[7], ptr_cr + (dct_offset>>1), wrap_c);
1558 }
1559 }
1560 }else{
1561 op_pixels_func (*op_pix)[4];
1562 qpel_mc_func (*op_qpix)[16];
1563 uint8_t *dest_y, *dest_cb, *dest_cr;
1564
1565 dest_y = s->dest[0];
1566 dest_cb = s->dest[1];
1567 dest_cr = s->dest[2];
1568
9701840b 1569 if ((!s->no_rounding) || s->pict_type==FF_B_TYPE){
3ada94ba
BF
1570 op_pix = s->dsp.put_pixels_tab;
1571 op_qpix= s->dsp.put_qpel_pixels_tab;
1572 }else{
1573 op_pix = s->dsp.put_no_rnd_pixels_tab;
1574 op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab;
1575 }
1576
1577 if (s->mv_dir & MV_DIR_FORWARD) {
1578 MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix);
1579 op_pix = s->dsp.avg_pixels_tab;
1580 op_qpix= s->dsp.avg_qpel_pixels_tab;
1581 }
1582 if (s->mv_dir & MV_DIR_BACKWARD) {
1583 MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix);
1584 }
1585
1586 if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1587 int progressive_score, interlaced_score;
1588
1589 s->interlaced_dct=0;
1590 progressive_score= s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y, 8)
1591 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y*8, ptr_y + wrap_y*8, wrap_y, 8) - 400;
1592
1593 if(s->avctx->ildct_cmp == FF_CMP_VSSE) progressive_score -= 400;
1594
1595 if(progressive_score>0){
1596 interlaced_score = s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y*2, 8)
1597 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y , ptr_y + wrap_y , wrap_y*2, 8);
1598
1599 if(progressive_score > interlaced_score){
1600 s->interlaced_dct=1;
1601
1602 dct_offset= wrap_y;
1603 wrap_y<<=1;
1604 if (s->chroma_format == CHROMA_422)
1605 wrap_c<<=1;
1606 }
1607 }
1608 }
1609
1610 s->dsp.diff_pixels(s->block[0], ptr_y , dest_y , wrap_y);
1611 s->dsp.diff_pixels(s->block[1], ptr_y + 8, dest_y + 8, wrap_y);
1612 s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset , dest_y + dct_offset , wrap_y);
1613 s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y);
1614
1615 if(s->flags&CODEC_FLAG_GRAY){
1616 skip_dct[4]= 1;
1617 skip_dct[5]= 1;
1618 }else{
1619 s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
1620 s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
1621 if(!s->chroma_y_shift){ /* 422 */
1622 s->dsp.diff_pixels(s->block[6], ptr_cb + (dct_offset>>1), dest_cb + (dct_offset>>1), wrap_c);
1623 s->dsp.diff_pixels(s->block[7], ptr_cr + (dct_offset>>1), dest_cr + (dct_offset>>1), wrap_c);
1624 }
1625 }
1626 /* pre quantization */
1627 if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){
1628 //FIXME optimize
1629 if(s->dsp.sad[1](NULL, ptr_y , dest_y , wrap_y, 8) < 20*s->qscale) skip_dct[0]= 1;
1630 if(s->dsp.sad[1](NULL, ptr_y + 8, dest_y + 8, wrap_y, 8) < 20*s->qscale) skip_dct[1]= 1;
1631 if(s->dsp.sad[1](NULL, ptr_y +dct_offset , dest_y +dct_offset , wrap_y, 8) < 20*s->qscale) skip_dct[2]= 1;
1632 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;
1633 if(s->dsp.sad[1](NULL, ptr_cb , dest_cb , wrap_c, 8) < 20*s->qscale) skip_dct[4]= 1;
1634 if(s->dsp.sad[1](NULL, ptr_cr , dest_cr , wrap_c, 8) < 20*s->qscale) skip_dct[5]= 1;
1635 if(!s->chroma_y_shift){ /* 422 */
1636 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;
1637 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;
1638 }
1639 }
1640 }
1641
1642 if(s->avctx->quantizer_noise_shaping){
f073a393
DB
1643 if(!skip_dct[0]) get_visual_weight(weight[0], ptr_y , wrap_y);
1644 if(!skip_dct[1]) get_visual_weight(weight[1], ptr_y + 8, wrap_y);
1645 if(!skip_dct[2]) get_visual_weight(weight[2], ptr_y + dct_offset , wrap_y);
1646 if(!skip_dct[3]) get_visual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y);
1647 if(!skip_dct[4]) get_visual_weight(weight[4], ptr_cb , wrap_c);
1648 if(!skip_dct[5]) get_visual_weight(weight[5], ptr_cr , wrap_c);
3ada94ba 1649 if(!s->chroma_y_shift){ /* 422 */
f073a393
DB
1650 if(!skip_dct[6]) get_visual_weight(weight[6], ptr_cb + (dct_offset>>1), wrap_c);
1651 if(!skip_dct[7]) get_visual_weight(weight[7], ptr_cr + (dct_offset>>1), wrap_c);
3ada94ba
BF
1652 }
1653 memcpy(orig[0], s->block[0], sizeof(DCTELEM)*64*mb_block_count);
1654 }
1655
1656 /* DCT & quantize */
1657 assert(s->out_format!=FMT_MJPEG || s->qscale==8);
1658 {
1659 for(i=0;i<mb_block_count;i++) {
1660 if(!skip_dct[i]){
1661 int overflow;
1662 s->block_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow);
1663 // FIXME we could decide to change to quantizer instead of clipping
1664 // JS: I don't think that would be a good idea it could lower quality instead
1665 // of improve it. Just INTRADC clipping deserves changes in quantizer
1666 if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1667 }else
1668 s->block_last_index[i]= -1;
1669 }
1670 if(s->avctx->quantizer_noise_shaping){
1671 for(i=0;i<mb_block_count;i++) {
1672 if(!skip_dct[i]){
1673 s->block_last_index[i] = dct_quantize_refine(s, s->block[i], weight[i], orig[i], i, s->qscale);
1674 }
1675 }
1676 }
1677
1678 if(s->luma_elim_threshold && !s->mb_intra)
1679 for(i=0; i<4; i++)
1680 dct_single_coeff_elimination(s, i, s->luma_elim_threshold);
1681 if(s->chroma_elim_threshold && !s->mb_intra)
1682 for(i=4; i<mb_block_count; i++)
1683 dct_single_coeff_elimination(s, i, s->chroma_elim_threshold);
1684
1685 if(s->flags & CODEC_FLAG_CBP_RD){
1686 for(i=0;i<mb_block_count;i++) {
1687 if(s->block_last_index[i] == -1)
1688 s->coded_score[i]= INT_MAX/256;
1689 }
1690 }
1691 }
1692
1693 if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
1694 s->block_last_index[4]=
1695 s->block_last_index[5]= 0;
1696 s->block[4][0]=
1697 s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale;
1698 }
1699
1700 //non c quantize code returns incorrect block_last_index FIXME
1701 if(s->alternate_scan && s->dct_quantize != dct_quantize_c){
1702 for(i=0; i<mb_block_count; i++){
1703 int j;
1704 if(s->block_last_index[i]>0){
1705 for(j=63; j>0; j--){
1706 if(s->block[i][ s->intra_scantable.permutated[j] ]) break;
1707 }
1708 s->block_last_index[i]= j;
1709 }
1710 }
1711 }
1712
1713 /* huffman encode */
1714 switch(s->codec_id){ //FIXME funct ptr could be slightly faster
1715 case CODEC_ID_MPEG1VIDEO:
1716 case CODEC_ID_MPEG2VIDEO:
a6bc5731 1717 if (ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER)
56be950a
AJ
1718 mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1719 break;
3ada94ba 1720 case CODEC_ID_MPEG4:
eb75a698 1721 if (ENABLE_MPEG4_ENCODER)
674eeb5f
AJ
1722 mpeg4_encode_mb(s, s->block, motion_x, motion_y);
1723 break;
3ada94ba
BF
1724 case CODEC_ID_MSMPEG4V2:
1725 case CODEC_ID_MSMPEG4V3:
1726 case CODEC_ID_WMV1:
1727 if (ENABLE_MSMPEG4_ENCODER)
1728 msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1729 break;
1730 case CODEC_ID_WMV2:
1731 if (ENABLE_WMV2_ENCODER)
1732 ff_wmv2_encode_mb(s, s->block, motion_x, motion_y);
1733 break;
1734 case CODEC_ID_H261:
1735 if (ENABLE_H261_ENCODER)
1736 ff_h261_encode_mb(s, s->block, motion_x, motion_y);
1737 break;
1738 case CODEC_ID_H263:
1739 case CODEC_ID_H263P:
1740 case CODEC_ID_FLV1:
1741 case CODEC_ID_RV10:
1742 case CODEC_ID_RV20:
eb75a698
AJ
1743 if (ENABLE_H263_ENCODER || ENABLE_H263P_ENCODER ||
1744 ENABLE_FLV_ENCODER || ENABLE_RV10_ENCODER || ENABLE_RV20_ENCODER)
674eeb5f
AJ
1745 h263_encode_mb(s, s->block, motion_x, motion_y);
1746 break;
3ada94ba
BF
1747 case CODEC_ID_MJPEG:
1748 if (ENABLE_MJPEG_ENCODER)
1749 ff_mjpeg_encode_mb(s, s->block);
1750 break;
1751 default:
1752 assert(0);
1753 }
1754}
1755
1756static av_always_inline void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
1757{
1758 if (s->chroma_format == CHROMA_420) encode_mb_internal(s, motion_x, motion_y, 8, 6);
1759 else encode_mb_internal(s, motion_x, motion_y, 16, 8);
1760}
1761
3ada94ba
BF
1762static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1763 int i;
1764
1765 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1766
1767 /* mpeg1 */
1768 d->mb_skip_run= s->mb_skip_run;
1769 for(i=0; i<3; i++)
1770 d->last_dc[i]= s->last_dc[i];
1771
1772 /* statistics */
1773 d->mv_bits= s->mv_bits;
1774 d->i_tex_bits= s->i_tex_bits;
1775 d->p_tex_bits= s->p_tex_bits;
1776 d->i_count= s->i_count;
1777 d->f_count= s->f_count;
1778 d->b_count= s->b_count;
1779 d->skip_count= s->skip_count;
1780 d->misc_bits= s->misc_bits;
1781 d->last_bits= 0;
1782
1783 d->mb_skipped= 0;
1784 d->qscale= s->qscale;
1785 d->dquant= s->dquant;
9f175aa0
MN
1786
1787 d->esc3_level_length= s->esc3_level_length;
3ada94ba
BF
1788}
1789
1790static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1791 int i;
1792
1793 memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
1794 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1795
1796 /* mpeg1 */
1797 d->mb_skip_run= s->mb_skip_run;
1798 for(i=0; i<3; i++)
1799 d->last_dc[i]= s->last_dc[i];
1800
1801 /* statistics */
1802 d->mv_bits= s->mv_bits;
1803 d->i_tex_bits= s->i_tex_bits;
1804 d->p_tex_bits= s->p_tex_bits;
1805 d->i_count= s->i_count;
1806 d->f_count= s->f_count;
1807 d->b_count= s->b_count;
1808 d->skip_count= s->skip_count;
1809 d->misc_bits= s->misc_bits;
1810
1811 d->mb_intra= s->mb_intra;
1812 d->mb_skipped= s->mb_skipped;
1813 d->mv_type= s->mv_type;
1814 d->mv_dir= s->mv_dir;
1815 d->pb= s->pb;
1816 if(s->data_partitioning){
1817 d->pb2= s->pb2;
1818 d->tex_pb= s->tex_pb;
1819 }
1820 d->block= s->block;
1821 for(i=0; i<8; i++)
1822 d->block_last_index[i]= s->block_last_index[i];
1823 d->interlaced_dct= s->interlaced_dct;
1824 d->qscale= s->qscale;
9f175aa0
MN
1825
1826 d->esc3_level_length= s->esc3_level_length;
3ada94ba
BF
1827}
1828
1829static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type,
1830 PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
1831 int *dmin, int *next_block, int motion_x, int motion_y)
1832{
1833 int score;
1834 uint8_t *dest_backup[3];
1835
1836 copy_context_before_encode(s, backup, type);
1837
1838 s->block= s->blocks[*next_block];
1839 s->pb= pb[*next_block];
1840 if(s->data_partitioning){
1841 s->pb2 = pb2 [*next_block];
1842 s->tex_pb= tex_pb[*next_block];
1843 }
1844
1845 if(*next_block){
1846 memcpy(dest_backup, s->dest, sizeof(s->dest));
1847 s->dest[0] = s->rd_scratchpad;
1848 s->dest[1] = s->rd_scratchpad + 16*s->linesize;
1849 s->dest[2] = s->rd_scratchpad + 16*s->linesize + 8;
1850 assert(s->linesize >= 32); //FIXME
1851 }
1852
1853 encode_mb(s, motion_x, motion_y);
1854
1855 score= put_bits_count(&s->pb);
1856 if(s->data_partitioning){
1857 score+= put_bits_count(&s->pb2);
1858 score+= put_bits_count(&s->tex_pb);
1859 }
1860
1861 if(s->avctx->mb_decision == FF_MB_DECISION_RD){
1862 MPV_decode_mb(s, s->block);
1863
1864 score *= s->lambda2;
1865 score += sse_mb(s) << FF_LAMBDA_SHIFT;
1866 }
1867
1868 if(*next_block){
1869 memcpy(s->dest, dest_backup, sizeof(s->dest));
1870 }
1871
1872 if(score<*dmin){
1873 *dmin= score;
1874 *next_block^=1;
1875
1876 copy_context_after_encode(best, s, type);
1877 }
1878}
1879
1880static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){
1881 uint32_t *sq = ff_squareTbl + 256;
1882 int acc=0;
1883 int x,y;
1884
1885 if(w==16 && h==16)
1886 return s->dsp.sse[0](NULL, src1, src2, stride, 16);
1887 else if(w==8 && h==8)
1888 return s->dsp.sse[1](NULL, src1, src2, stride, 8);
1889
1890 for(y=0; y<h; y++){
1891 for(x=0; x<w; x++){
1892 acc+= sq[src1[x + y*stride] - src2[x + y*stride]];
1893 }
1894 }
1895
1896 assert(acc>=0);
1897
1898 return acc;
1899}
1900
1901static int sse_mb(MpegEncContext *s){
1902 int w= 16;
1903 int h= 16;
1904
1905 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
1906 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
1907
1908 if(w==16 && h==16)
1909 if(s->avctx->mb_cmp == FF_CMP_NSSE){
1910 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)
1911 +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)
1912 +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);
1913 }else{
1914 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)
1915 +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)
1916 +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);
1917 }
1918 else
1919 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)
1920 +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)
1921 +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);
1922}
1923
1924static int pre_estimate_motion_thread(AVCodecContext *c, void *arg){
1925 MpegEncContext *s= arg;
1926
1927
1928 s->me.pre_pass=1;
1929 s->me.dia_size= s->avctx->pre_dia_size;
1930 s->first_slice_line=1;
1931 for(s->mb_y= s->end_mb_y-1; s->mb_y >= s->start_mb_y; s->mb_y--) {
1932 for(s->mb_x=s->mb_width-1; s->mb_x >=0 ;s->mb_x--) {
1933 ff_pre_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1934 }
1935 s->first_slice_line=0;
1936 }
1937
1938 s->me.pre_pass=0;
1939
1940 return 0;
1941}
1942
1943static int estimate_motion_thread(AVCodecContext *c, void *arg){
1944 MpegEncContext *s= arg;
1945
1946 ff_check_alignment();
1947
1948 s->me.dia_size= s->avctx->dia_size;
1949 s->first_slice_line=1;
1950 for(s->mb_y= s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
1951 s->mb_x=0; //for block init below
1952 ff_init_block_index(s);
1953 for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {
1954 s->block_index[0]+=2;
1955 s->block_index[1]+=2;
1956 s->block_index[2]+=2;
1957 s->block_index[3]+=2;
1958
1959 /* compute motion vector & mb_type and store in context */
9701840b 1960 if(s->pict_type==FF_B_TYPE)
3ada94ba
BF
1961 ff_estimate_b_frame_motion(s, s->mb_x, s->mb_y);
1962 else
1963 ff_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1964 }
1965 s->first_slice_line=0;
1966 }
1967 return 0;
1968}
1969
1970static int mb_var_thread(AVCodecContext *c, void *arg){
1971 MpegEncContext *s= arg;
1972 int mb_x, mb_y;
1973
1974 ff_check_alignment();
1975
1976 for(mb_y=s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
1977 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
1978 int xx = mb_x * 16;
1979 int yy = mb_y * 16;
1980 uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
1981 int varc;
1982 int sum = s->dsp.pix_sum(pix, s->linesize);
1983
1984 varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
1985
1986 s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
1987 s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
1988 s->me.mb_var_sum_temp += varc;
1989 }
1990 }
1991 return 0;
1992}
1993
1994static void write_slice_end(MpegEncContext *s){
eb75a698 1995 if(ENABLE_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4){
3ada94ba
BF
1996 if(s->partitioned_frame){
1997 ff_mpeg4_merge_partitions(s);
1998 }
1999
2000 ff_mpeg4_stuffing(&s->pb);
2001 }else if(ENABLE_MJPEG_ENCODER && s->out_format == FMT_MJPEG){
2002 ff_mjpeg_encode_stuffing(&s->pb);
2003 }
2004
2005 align_put_bits(&s->pb);
2006 flush_put_bits(&s->pb);
2007
2008 if((s->flags&CODEC_FLAG_PASS1) && !s->partitioned_frame)
2009 s->misc_bits+= get_bits_diff(s);
2010}
2011
2012static int encode_thread(AVCodecContext *c, void *arg){
2013 MpegEncContext *s= arg;
2014 int mb_x, mb_y, pdif = 0;
2015 int i, j;
2016 MpegEncContext best_s, backup_s;
2017 uint8_t bit_buf[2][MAX_MB_BYTES];
2018 uint8_t bit_buf2[2][MAX_MB_BYTES];
2019 uint8_t bit_buf_tex[2][MAX_MB_BYTES];
2020 PutBitContext pb[2], pb2[2], tex_pb[2];
2021//printf("%d->%d\n", s->resync_mb_y, s->end_mb_y);
2022
2023 ff_check_alignment();
2024
2025 for(i=0; i<2; i++){
2026 init_put_bits(&pb [i], bit_buf [i], MAX_MB_BYTES);
2027 init_put_bits(&pb2 [i], bit_buf2 [i], MAX_MB_BYTES);
2028 init_put_bits(&tex_pb[i], bit_buf_tex[i], MAX_MB_BYTES);
2029 }
2030
2031 s->last_bits= put_bits_count(&s->pb);
2032 s->mv_bits=0;
2033 s->misc_bits=0;
2034 s->i_tex_bits=0;
2035 s->p_tex_bits=0;
2036 s->i_count=0;
2037 s->f_count=0;
2038 s->b_count=0;
2039 s->skip_count=0;
2040
2041 for(i=0; i<3; i++){
2042 /* init last dc values */
2043 /* note: quant matrix value (8) is implied here */
2044 s->last_dc[i] = 128 << s->intra_dc_precision;
2045
2046 s->current_picture.error[i] = 0;
2047 }
2048 s->mb_skip_run = 0;
2049 memset(s->last_mv, 0, sizeof(s->last_mv));
2050
2051 s->last_mv_dir = 0;
2052
2053 switch(s->codec_id){
2054 case CODEC_ID_H263:
2055 case CODEC_ID_H263P:
2056 case CODEC_ID_FLV1:
eb75a698 2057 if (ENABLE_H263_ENCODER || ENABLE_H263P_ENCODER || ENABLE_FLV_ENCODER)
674eeb5f 2058 s->gob_index = ff_h263_get_gob_height(s);
3ada94ba
BF
2059 break;
2060 case CODEC_ID_MPEG4:
eb75a698 2061 if(ENABLE_MPEG4_ENCODER && s->partitioned_frame)
3ada94ba
BF
2062 ff_mpeg4_init_partitions(s);
2063 break;
2064 }
2065
2066 s->resync_mb_x=0;
2067 s->resync_mb_y=0;
2068 s->first_slice_line = 1;
2069 s->ptr_lastgob = s->pb.buf;
2070 for(mb_y= s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2071// printf("row %d at %X\n", s->mb_y, (int)s);
2072 s->mb_x=0;
2073 s->mb_y= mb_y;
2074
2075 ff_set_qscale(s, s->qscale);
2076 ff_init_block_index(s);
2077
2078 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2079 int xy= mb_y*s->mb_stride + mb_x; // removed const, H261 needs to adjust this
2080 int mb_type= s->mb_type[xy];
2081// int d;
2082 int dmin= INT_MAX;
2083 int dir;
2084
2085 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < MAX_MB_BYTES){
2086 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2087 return -1;
2088 }
2089 if(s->data_partitioning){
2090 if( s->pb2 .buf_end - s->pb2 .buf - (put_bits_count(&s-> pb2)>>3) < MAX_MB_BYTES
2091 || s->tex_pb.buf_end - s->tex_pb.buf - (put_bits_count(&s->tex_pb )>>3) < MAX_MB_BYTES){
2092 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2093 return -1;
2094 }
2095 }
2096
2097 s->mb_x = mb_x;
2098 s->mb_y = mb_y; // moved into loop, can get changed by H.261
2099 ff_update_block_index(s);
2100
2101 if(ENABLE_H261_ENCODER && s->codec_id == CODEC_ID_H261){
2102 ff_h261_reorder_mb_index(s);
2103 xy= s->mb_y*s->mb_stride + s->mb_x;
2104 mb_type= s->mb_type[xy];
2105 }
2106
2107 /* write gob / video packet header */
2108 if(s->rtp_mode){
2109 int current_packet_size, is_gob_start;
2110
2111 current_packet_size= ((put_bits_count(&s->pb)+7)>>3) - (s->ptr_lastgob - s->pb.buf);
2112
2113 is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0;
2114
2115 if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1;
2116
2117 switch(s->codec_id){
2118 case CODEC_ID_H263:
2119 case CODEC_ID_H263P:
2120 if(!s->h263_slice_structured)
2121 if(s->mb_x || s->mb_y%s->gob_index) is_gob_start=0;
2122 break;
2123 case CODEC_ID_MPEG2VIDEO:
2124 if(s->mb_x==0 && s->mb_y!=0) is_gob_start=1;
2125 case CODEC_ID_MPEG1VIDEO:
2126 if(s->mb_skip_run) is_gob_start=0;
2127 break;
2128 }
2129
2130 if(is_gob_start){
2131 if(s->start_mb_y != mb_y || mb_x!=0){
2132 write_slice_end(s);
2133
eb75a698 2134 if(ENABLE_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){
3ada94ba
BF
2135 ff_mpeg4_init_partitions(s);
2136 }
2137 }
2138
2139 assert((put_bits_count(&s->pb)&7) == 0);
2140 current_packet_size= pbBufPtr(&s->pb) - s->ptr_lastgob;
2141
2142 if(s->avctx->error_rate && s->resync_mb_x + s->resync_mb_y > 0){
2143 int r= put_bits_count(&s->pb)/8 + s->picture_number + 16 + s->mb_x + s->mb_y;
2144 int d= 100 / s->avctx->error_rate;
2145 if(r % d == 0){
2146 current_packet_size=0;
2147#ifndef ALT_BITSTREAM_WRITER
2148 s->pb.buf_ptr= s->ptr_lastgob;
2149#endif
2150 assert(pbBufPtr(&s->pb) == s->ptr_lastgob);
2151 }
2152 }
2153
2154 if (s->avctx->rtp_callback){
2155 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width + mb_x - s->resync_mb_x;
2156 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, current_packet_size, number_mb);
2157 }
2158
2159 switch(s->codec_id){
2160 case CODEC_ID_MPEG4:
eb75a698 2161 if (ENABLE_MPEG4_ENCODER) {
674eeb5f
AJ
2162 ff_mpeg4_encode_video_packet_header(s);
2163 ff_mpeg4_clean_buffers(s);
eb75a698 2164 }
3ada94ba
BF
2165 break;
2166 case CODEC_ID_MPEG1VIDEO:
2167 case CODEC_ID_MPEG2VIDEO:
a6bc5731 2168 if (ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER) {
56be950a
AJ
2169 ff_mpeg1_encode_slice_header(s);
2170 ff_mpeg1_clean_buffers(s);
a6bc5731 2171 }
3ada94ba
BF
2172 break;
2173 case CODEC_ID_H263:
2174 case CODEC_ID_H263P:
eb75a698 2175 if (ENABLE_H263_ENCODER || ENABLE_H263P_ENCODER)
674eeb5f 2176 h263_encode_gob_header(s, mb_y);
3ada94ba
BF
2177 break;
2178 }
2179
2180 if(s->flags&CODEC_FLAG_PASS1){
2181 int bits= put_bits_count(&s->pb);
2182 s->misc_bits+= bits - s->last_bits;
2183 s->last_bits= bits;
2184 }
2185
2186 s->ptr_lastgob += current_packet_size;
2187 s->first_slice_line=1;
2188 s->resync_mb_x=mb_x;
2189 s->resync_mb_y=mb_y;
2190 }
2191 }
2192
2193 if( (s->resync_mb_x == s->mb_x)
2194 && s->resync_mb_y+1 == s->mb_y){
2195 s->first_slice_line=0;
2196 }
2197
2198 s->mb_skipped=0;
2199 s->dquant=0; //only for QP_RD
2200
2201 if(mb_type & (mb_type-1) || (s->flags & CODEC_FLAG_QP_RD)){ // more than 1 MB type possible or CODEC_FLAG_QP_RD
2202 int next_block=0;
2203 int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
2204
2205 copy_context_before_encode(&backup_s, s, -1);
2206 backup_s.pb= s->pb;
2207 best_s.data_partitioning= s->data_partitioning;
2208 best_s.partitioned_frame= s->partitioned_frame;
2209 if(s->data_partitioning){
2210 backup_s.pb2= s->pb2;
2211 backup_s.tex_pb= s->tex_pb;
2212 }
2213
2214 if(mb_type&CANDIDATE_MB_TYPE_INTER){
2215 s->mv_dir = MV_DIR_FORWARD;
2216 s->mv_type = MV_TYPE_16X16;
2217 s->mb_intra= 0;
2218 s->mv[0][0][0] = s->p_mv_table[xy][0];
2219 s->mv[0][0][1] = s->p_mv_table[xy][1];
2220 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER, pb, pb2, tex_pb,
2221 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2222 }
2223 if(mb_type&CANDIDATE_MB_TYPE_INTER_I){
2224 s->mv_dir = MV_DIR_FORWARD;
2225 s->mv_type = MV_TYPE_FIELD;
2226 s->mb_intra= 0;
2227 for(i=0; i<2; i++){
2228 j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2229 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2230 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2231 }
2232 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER_I, pb, pb2, tex_pb,
2233 &dmin, &next_block, 0, 0);
2234 }
2235 if(mb_type&CANDIDATE_MB_TYPE_SKIPPED){
2236 s->mv_dir = MV_DIR_FORWARD;
2237 s->mv_type = MV_TYPE_16X16;
2238 s->mb_intra= 0;
2239 s->mv[0][0][0] = 0;
2240 s->mv[0][0][1] = 0;
2241 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_SKIPPED, pb, pb2, tex_pb,
2242 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2243 }
2244 if(mb_type&CANDIDATE_MB_TYPE_INTER4V){
2245 s->mv_dir = MV_DIR_FORWARD;
2246 s->mv_type = MV_TYPE_8X8;
2247 s->mb_intra= 0;
2248 for(i=0; i<4; i++){
2249 s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2250 s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2251 }
2252 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER4V, pb, pb2, tex_pb,
2253 &dmin, &next_block, 0, 0);
2254 }
2255 if(mb_type&CANDIDATE_MB_TYPE_FORWARD){
2256 s->mv_dir = MV_DIR_FORWARD;
2257 s->mv_type = MV_TYPE_16X16;
2258 s->mb_intra= 0;
2259 s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2260 s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2261 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD, pb, pb2, tex_pb,
2262 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2263 }
2264 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD){
2265 s->mv_dir = MV_DIR_BACKWARD;
2266 s->mv_type = MV_TYPE_16X16;
2267 s->mb_intra= 0;
2268 s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2269 s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2270 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD, pb, pb2, tex_pb,
2271 &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
2272 }
2273 if(mb_type&CANDIDATE_MB_TYPE_BIDIR){
2274 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2275 s->mv_type = MV_TYPE_16X16;
2276 s->mb_intra= 0;
2277 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2278 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2279 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2280 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2281 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb,
2282 &dmin, &next_block, 0, 0);
2283 }
2284 if(mb_type&CANDIDATE_MB_TYPE_FORWARD_I){
2285 s->mv_dir = MV_DIR_FORWARD;
2286 s->mv_type = MV_TYPE_FIELD;
2287 s->mb_intra= 0;
2288 for(i=0; i<2; i++){
2289 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2290 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2291 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2292 }
2293 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD_I, pb, pb2, tex_pb,
2294 &dmin, &next_block, 0, 0);
2295 }
2296 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD_I){
2297 s->mv_dir = MV_DIR_BACKWARD;
2298 s->mv_type = MV_TYPE_FIELD;
2299 s->mb_intra= 0;
2300 for(i=0; i<2; i++){
2301 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2302 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2303 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2304 }
2305 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD_I, pb, pb2, tex_pb,
2306 &dmin, &next_block, 0, 0);
2307 }
2308 if(mb_type&CANDIDATE_MB_TYPE_BIDIR_I){
2309 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2310 s->mv_type = MV_TYPE_FIELD;
2311 s->mb_intra= 0;
2312 for(dir=0; dir<2; dir++){
2313 for(i=0; i<2; i++){
2314 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2315 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2316 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2317 }
2318 }
2319 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR_I, pb, pb2, tex_pb,
2320 &dmin, &next_block, 0, 0);
2321 }
2322 if(mb_type&CANDIDATE_MB_TYPE_INTRA){
2323 s->mv_dir = 0;
2324 s->mv_type = MV_TYPE_16X16;
2325 s->mb_intra= 1;
2326 s->mv[0][0][0] = 0;
2327 s->mv[0][0][1] = 0;
2328 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTRA, pb, pb2, tex_pb,
2329 &dmin, &next_block, 0, 0);
2330 if(s->h263_pred || s->h263_aic){
2331 if(best_s.mb_intra)
2332 s->mbintra_table[mb_x + mb_y*s->mb_stride]=1;
2333 else
2334 ff_clean_intra_table_entries(s); //old mode?
2335 }
2336 }
2337
2338 if((s->flags & CODEC_FLAG_QP_RD) && dmin < INT_MAX){
2339 if(best_s.mv_type==MV_TYPE_16X16){ //FIXME move 4mv after QPRD
2340 const int last_qp= backup_s.qscale;
2341 int qpi, qp, dc[6];
2342 DCTELEM ac[6][16];
2343 const int mvdir= (best_s.mv_dir&MV_DIR_BACKWARD) ? 1 : 0;
2344 static const int dquant_tab[4]={-1,1,-2,2};
2345
2346 assert(backup_s.dquant == 0);
2347
2348 //FIXME intra
2349 s->mv_dir= best_s.mv_dir;
2350 s->mv_type = MV_TYPE_16X16;
2351 s->mb_intra= best_s.mb_intra;
2352 s->mv[0][0][0] = best_s.mv[0][0][0];
2353 s->mv[0][0][1] = best_s.mv[0][0][1];
2354 s->mv[1][0][0] = best_s.mv[1][0][0];
2355 s->mv[1][0][1] = best_s.mv[1][0][1];
2356
9701840b 2357 qpi = s->pict_type == FF_B_TYPE ? 2 : 0;
3ada94ba
BF
2358 for(; qpi<4; qpi++){
2359 int dquant= dquant_tab[qpi];
2360 qp= last_qp + dquant;
2361 if(qp < s->avctx->qmin || qp > s->avctx->qmax)
2362 continue;
2363 backup_s.dquant= dquant;
2364 if(s->mb_intra && s->dc_val[0]){
2365 for(i=0; i<6; i++){
2366 dc[i]= s->dc_val[0][ s->block_index[i] ];
2367 memcpy(ac[i], s->ac_val[0][s->block_index[i]], sizeof(DCTELEM)*16);
2368 }
2369 }
2370
2371 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2372 &dmin, &next_block, s->mv[mvdir][0][0], s->mv[mvdir][0][1]);
2373 if(best_s.qscale != qp){
2374 if(s->mb_intra && s->dc_val[0]){
2375 for(i=0; i<6; i++){
2376 s->dc_val[0][ s->block_index[i] ]= dc[i];
2377 memcpy(s->ac_val[0][s->block_index[i]], ac[i], sizeof(DCTELEM)*16);
2378 }
2379 }
2380 }
2381 }
2382 }
2383 }
eb75a698 2384 if(ENABLE_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT){
3ada94ba
BF
2385 int mx= s->b_direct_mv_table[xy][0];
2386 int my= s->b_direct_mv_table[xy][1];
2387
2388 backup_s.dquant = 0;
2389 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2390 s->mb_intra= 0;
2391 ff_mpeg4_set_direct_mv(s, mx, my);
2392 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2393 &dmin, &next_block, mx, my);
2394 }
eb75a698 2395 if(ENABLE_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT0){
3ada94ba
BF
2396 backup_s.dquant = 0;
2397 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2398 s->mb_intra= 0;
2399 ff_mpeg4_set_direct_mv(s, 0, 0);
2400 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2401 &dmin, &next_block, 0, 0);
2402 }
2403 if(!best_s.mb_intra && s->flags2&CODEC_FLAG2_SKIP_RD){
2404 int coded=0;
2405 for(i=0; i<6; i++)
2406 coded |= s->block_last_index[i];
2407 if(coded){
2408 int mx,my;
2409 memcpy(s->mv, best_s.mv, sizeof(s->mv));
eb75a698 2410 if(ENABLE_MPEG4_ENCODER && best_s.mv_dir & MV_DIRECT){
3ada94ba
BF
2411 mx=my=0; //FIXME find the one we actually used
2412 ff_mpeg4_set_direct_mv(s, mx, my);
2413 }else if(best_s.mv_dir&MV_DIR_BACKWARD){
2414 mx= s->mv[1][0][0];
2415 my= s->mv[1][0][1];
2416 }else{
2417 mx= s->mv[0][0][0];
2418 my= s->mv[0][0][1];
2419 }
2420
2421 s->mv_dir= best_s.mv_dir;
2422 s->mv_type = best_s.mv_type;
2423 s->mb_intra= 0;
2424/* s->mv[0][0][0] = best_s.mv[0][0][0];
2425 s->mv[0][0][1] = best_s.mv[0][0][1];
2426 s->mv[1][0][0] = best_s.mv[1][0][0];
2427 s->mv[1][0][1] = best_s.mv[1][0][1];*/
2428 backup_s.dquant= 0;
2429 s->skipdct=1;
2430 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2431 &dmin, &next_block, mx, my);
2432 s->skipdct=0;
2433 }
2434 }
2435
2436 s->current_picture.qscale_table[xy]= best_s.qscale;
2437
2438 copy_context_after_encode(s, &best_s, -1);
2439
2440 pb_bits_count= put_bits_count(&s->pb);
2441 flush_put_bits(&s->pb);
2442 ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
2443 s->pb= backup_s.pb;
2444
2445 if(s->data_partitioning){
2446 pb2_bits_count= put_bits_count(&s->pb2);
2447 flush_put_bits(&s->pb2);
2448 ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
2449 s->pb2= backup_s.pb2;
2450
2451 tex_pb_bits_count= put_bits_count(&s->tex_pb);
2452 flush_put_bits(&s->tex_pb);
2453 ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
2454 s->tex_pb= backup_s.tex_pb;
2455 }
2456 s->last_bits= put_bits_count(&s->pb);
2457
eb75a698 2458 if (ENABLE_ANY_H263_ENCODER &&
9701840b 2459 s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
3ada94ba
BF
2460 ff_h263_update_motion_val(s);
2461
2462 if(next_block==0){ //FIXME 16 vs linesize16
2463 s->dsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad , s->linesize ,16);
2464 s->dsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize , s->uvlinesize, 8);
2465 s->dsp.put_pixels_tab[1][0](s->dest[2], s->rd_scratchpad + 16*s->linesize + 8, s->uvlinesize, 8);
2466 }
2467
2468 if(s->avctx->mb_decision == FF_MB_DECISION_BITS)
2469 MPV_decode_mb(s, s->block);
2470 } else {
2471 int motion_x = 0, motion_y = 0;
2472 s->mv_type=MV_TYPE_16X16;
2473 // only one MB-Type possible
2474
2475 switch(mb_type){
2476 case CANDIDATE_MB_TYPE_INTRA:
2477 s->mv_dir = 0;
2478 s->mb_intra= 1;
2479 motion_x= s->mv[0][0][0] = 0;
2480 motion_y= s->mv[0][0][1] = 0;
2481 break;
2482 case CANDIDATE_MB_TYPE_INTER:
2483 s->mv_dir = MV_DIR_FORWARD;
2484 s->mb_intra= 0;
2485 motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
2486 motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
2487 break;
2488 case CANDIDATE_MB_TYPE_INTER_I:
2489 s->mv_dir = MV_DIR_FORWARD;
2490 s->mv_type = MV_TYPE_FIELD;
2491 s->mb_intra= 0;
2492 for(i=0; i<2; i++){
2493 j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2494 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2495 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2496 }
2497 break;
2498 case CANDIDATE_MB_TYPE_INTER4V:
2499 s->mv_dir = MV_DIR_FORWARD;
2500 s->mv_type = MV_TYPE_8X8;
2501 s->mb_intra= 0;
2502 for(i=0; i<4; i++){
2503 s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2504 s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2505 }
2506 break;
2507 case CANDIDATE_MB_TYPE_DIRECT:
eb75a698 2508 if (ENABLE_MPEG4_ENCODER) {
674eeb5f
AJ
2509 s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2510 s->mb_intra= 0;
2511 motion_x=s->b_direct_mv_table[xy][0];
2512 motion_y=s->b_direct_mv_table[xy][1];
2513 ff_mpeg4_set_direct_mv(s, motion_x, motion_y);
eb75a698 2514 }
3ada94ba
BF
2515 break;
2516 case CANDIDATE_MB_TYPE_DIRECT0:
eb75a698 2517 if (ENABLE_MPEG4_ENCODER) {
674eeb5f
AJ
2518 s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2519 s->mb_intra= 0;
2520 ff_mpeg4_set_direct_mv(s, 0, 0);
eb75a698 2521 }
3ada94ba
BF
2522 break;
2523 case CANDIDATE_MB_TYPE_BIDIR:
2524 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2525 s->mb_intra= 0;
2526 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2527 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2528 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2529 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2530 break;
2531 case CANDIDATE_MB_TYPE_BACKWARD:
2532 s->mv_dir = MV_DIR_BACKWARD;
2533 s->mb_intra= 0;
2534 motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2535 motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2536 break;
2537 case CANDIDATE_MB_TYPE_FORWARD:
2538 s->mv_dir = MV_DIR_FORWARD;
2539 s->mb_intra= 0;
2540 motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2541 motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2542// printf(" %d %d ", motion_x, motion_y);
2543 break;
2544 case CANDIDATE_MB_TYPE_FORWARD_I:
2545 s->mv_dir = MV_DIR_FORWARD;
2546 s->mv_type = MV_TYPE_FIELD;
2547 s->mb_intra= 0;
2548 for(i=0; i<2; i++){
2549 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2550 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2551 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2552 }
2553 break;
2554 case CANDIDATE_MB_TYPE_BACKWARD_I:
2555 s->mv_dir = MV_DIR_BACKWARD;
2556 s->mv_type = MV_TYPE_FIELD;
2557 s->mb_intra= 0;
2558 for(i=0; i<2; i++){
2559 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2560 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2561 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2562 }
2563 break;
2564 case CANDIDATE_MB_TYPE_BIDIR_I:
2565 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2566 s->mv_type = MV_TYPE_FIELD;
2567 s->mb_intra= 0;
2568 for(dir=0; dir<2; dir++){
2569 for(i=0; i<2; i++){
2570 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2571 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2572 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2573 }
2574 }
2575 break;
2576 default:
2577 av_log(s->avctx, AV_LOG_ERROR, "illegal MB type\n");
2578 }
2579
2580 encode_mb(s, motion_x, motion_y);
2581
2582 // RAL: Update last macroblock type
2583 s->last_mv_dir = s->mv_dir;
2584
eb75a698 2585 if (ENABLE_ANY_H263_ENCODER &&
9701840b 2586 s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
3ada94ba
BF
2587 ff_h263_update_motion_val(s);
2588
2589 MPV_decode_mb(s, s->block);
2590 }
2591
2592 /* clean the MV table in IPS frames for direct mode in B frames */
2593 if(s->mb_intra /* && I,P,S_TYPE */){
2594 s->p_mv_table[xy][0]=0;
2595 s->p_mv_table[xy][1]=0;
2596 }
2597
2598 if(s->flags&CODEC_FLAG_PSNR){
2599 int w= 16;
2600 int h= 16;
2601
2602 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
2603 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
2604
2605 s->current_picture.error[0] += sse(
2606 s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16,
2607 s->dest[0], w, h, s->linesize);
2608 s->current_picture.error[1] += sse(
2609 s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,
2610 s->dest[1], w>>1, h>>1, s->uvlinesize);
2611 s->current_picture.error[2] += sse(
2612 s, s->new_picture .data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,
2613 s->dest[2], w>>1, h>>1, s->uvlinesize);
2614 }
2615 if(s->loop_filter){
eb75a698 2616 if(ENABLE_ANY_H263_ENCODER && s->out_format == FMT_H263)
3ada94ba
BF
2617 ff_h263_loop_filter(s);
2618 }
2619//printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, put_bits_count(&s->pb));
2620 }
2621 }
2622
2623 //not beautiful here but we must write it before flushing so it has to be here
9701840b 2624 if (ENABLE_MSMPEG4_ENCODER && s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == FF_I_TYPE)
3ada94ba
BF
2625 msmpeg4_encode_ext_header(s);
2626
2627 write_slice_end(s);
2628
2629 /* Send the last GOB if RTP */
2630 if (s->avctx->rtp_callback) {
2631 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width - s->resync_mb_x;
2632 pdif = pbBufPtr(&s->pb) - s->ptr_lastgob;
2633 /* Call the RTP callback to send the last GOB */
2634 emms_c();
2635 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, pdif, number_mb);
2636 }
2637
2638 return 0;
2639}
2640
2641#define MERGE(field) dst->field += src->field; src->field=0
2642static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src){
2643 MERGE(me.scene_change_score);
2644 MERGE(me.mc_mb_var_sum_temp);
2645 MERGE(me.mb_var_sum_temp);
2646}
2647
2648static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src){
2649 int i;
2650
2651 MERGE(dct_count[0]); //note, the other dct vars are not part of the context
2652 MERGE(dct_count[1]);
2653 MERGE(mv_bits);
2654 MERGE(i_tex_bits);
2655 MERGE(p_tex_bits);
2656 MERGE(i_count);
2657 MERGE(f_count);
2658 MERGE(b_count);
2659 MERGE(skip_count);
2660 MERGE(misc_bits);
2661 MERGE(error_count);
2662 MERGE(padding_bug_score);
2663 MERGE(current_picture.error[0]);
2664 MERGE(current_picture.error[1]);
2665 MERGE(current_picture.error[2]);
2666
2667 if(dst->avctx->noise_reduction){
2668 for(i=0; i<64; i++){
2669 MERGE(dct_error_sum[0][i]);
2670 MERGE(dct_error_sum[1][i]);
2671 }
2672 }
2673
2674 assert(put_bits_count(&src->pb) % 8 ==0);
2675 assert(put_bits_count(&dst->pb) % 8 ==0);
2676 ff_copy_bits(&dst->pb, src->pb.buf, put_bits_count(&src->pb));
2677 flush_put_bits(&dst->pb);
2678}
2679
2680static int estimate_qp(MpegEncContext *s, int dry_run){
2681 if (s->next_lambda){
2682 s->current_picture_ptr->quality=
2683 s->current_picture.quality = s->next_lambda;
2684 if(!dry_run) s->next_lambda= 0;
2685 } else if (!s->fixed_qscale) {
2686 s->current_picture_ptr->quality=
2687 s->current_picture.quality = ff_rate_estimate_qscale(s, dry_run);
2688 if (s->current_picture.quality < 0)
2689 return -1;
2690 }
2691
2692 if(s->adaptive_quant){
2693 switch(s->codec_id){
2694 case CODEC_ID_MPEG4:
eb75a698 2695 if (ENABLE_MPEG4_ENCODER)
674eeb5f 2696 ff_clean_mpeg4_qscales(s);
3ada94ba
BF
2697 break;
2698 case CODEC_ID_H263:
2699 case CODEC_ID_H263P:
2700 case CODEC_ID_FLV1:
eb75a698 2701 if (ENABLE_H263_ENCODER||ENABLE_H263P_ENCODER||ENABLE_FLV_ENCODER)
674eeb5f 2702 ff_clean_h263_qscales(s);
3ada94ba
BF
2703 break;
2704 }
2705
2706 s->lambda= s->lambda_table[0];
2707 //FIXME broken
2708 }else
2709 s->lambda= s->current_picture.quality;
2710//printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality);
2711 update_qscale(s);
2712 return 0;
2713}
2714
7da31a80
AJ
2715/* must be called before writing the header */
2716static void set_frame_distances(MpegEncContext * s){
2717 assert(s->current_picture_ptr->pts != AV_NOPTS_VALUE);
2718 s->time= s->current_picture_ptr->pts*s->avctx->time_base.num;
2719
9701840b 2720 if(s->pict_type==FF_B_TYPE){
7da31a80
AJ
2721 s->pb_time= s->pp_time - (s->last_non_b_time - s->time);
2722 assert(s->pb_time > 0 && s->pb_time < s->pp_time);
2723 }else{
2724 s->pp_time= s->time - s->last_non_b_time;
2725 s->last_non_b_time= s->time;
2726 assert(s->picture_number==0 || s->pp_time > 0);
2727 }
2728}
2729
3ada94ba
BF
2730static int encode_picture(MpegEncContext *s, int picture_number)
2731{
2732 int i;
2733 int bits;
2734
2735 s->picture_number = picture_number;
2736
2737 /* Reset the average MB variance */
2738 s->me.mb_var_sum_temp =
2739 s->me.mc_mb_var_sum_temp = 0;
2740
2741 /* we need to initialize some time vars before we can encode b-frames */
2742 // RAL: Condition added for MPEG1VIDEO
2743 if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->h263_msmpeg4))
7da31a80
AJ
2744 set_frame_distances(s);
2745 if(ENABLE_MPEG4_ENCODER && s->codec_id == CODEC_ID_MPEG4)
2746 ff_set_mpeg4_time(s);
3ada94ba
BF
2747
2748 s->me.scene_change_score=0;
2749
e6dba5df 2750// s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME rate distortion
3ada94ba 2751
9701840b 2752 if(s->pict_type==FF_I_TYPE){
3ada94ba
BF
2753 if(s->msmpeg4_version >= 3) s->no_rounding=1;
2754 else s->no_rounding=0;
9701840b 2755 }else if(s->pict_type!=FF_B_TYPE){
3ada94ba
BF
2756 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
2757 s->no_rounding ^= 1;
2758 }
2759
2760 if(s->flags & CODEC_FLAG_PASS2){
2761 if (estimate_qp(s,1) < 0)
2762 return -1;
2763 ff_get_2pass_fcode(s);
2764 }else if(!(s->flags & CODEC_FLAG_QSCALE)){
9701840b 2765 if(s->pict_type==FF_B_TYPE)
3ada94ba
BF
2766 s->lambda= s->last_lambda_for[s->pict_type];
2767 else
2768 s->lambda= s->last_lambda_for[s->last_non_b_pict_type];
2769 update_qscale(s);
2770 }
2771
2772 s->mb_intra=0; //for the rate distortion & bit compare functions
2773 for(i=1; i<s->avctx->thread_count; i++){
2774 ff_update_duplicate_context(s->thread_context[i], s);
2775 }
2776
2777 ff_init_me(s);
2778
2779 /* Estimate motion for every MB */
9701840b 2780 if(s->pict_type != FF_I_TYPE){
3ada94ba
BF
2781 s->lambda = (s->lambda * s->avctx->me_penalty_compensation + 128)>>8;
2782 s->lambda2= (s->lambda2* (int64_t)s->avctx->me_penalty_compensation + 128)>>8;
9701840b
AJ
2783 if(s->pict_type != FF_B_TYPE && s->avctx->me_threshold==0){
2784 if((s->avctx->pre_me && s->last_non_b_pict_type==FF_I_TYPE) || s->avctx->pre_me==2){
3ada94ba
BF
2785 s->avctx->execute(s->avctx, pre_estimate_motion_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
2786 }
2787 }
2788
2789 s->avctx->execute(s->avctx, estimate_motion_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
9701840b 2790 }else /* if(s->pict_type == FF_I_TYPE) */{
3ada94ba
BF
2791 /* I-Frame */
2792 for(i=0; i<s->mb_stride*s->mb_height; i++)
2793 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2794
2795 if(!s->fixed_qscale){
2796 /* finding spatial complexity for I-frame rate control */
2797 s->avctx->execute(s->avctx, mb_var_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
2798 }
2799 }
2800 for(i=1; i<s->avctx->thread_count; i++){
2801 merge_context_after_me(s, s->thread_context[i]);
2802 }
2803 s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum= s->me.mc_mb_var_sum_temp;
2804 s->current_picture. mb_var_sum= s->current_picture_ptr-> mb_var_sum= s->me. mb_var_sum_temp;
2805 emms_c();
2806
9701840b
AJ
2807 if(s->me.scene_change_score > s->avctx->scenechange_threshold && s->pict_type == FF_P_TYPE){
2808 s->pict_type= FF_I_TYPE;
3ada94ba
BF
2809 for(i=0; i<s->mb_stride*s->mb_height; i++)
2810 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2811//printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum);
2812 }
2813
2814 if(!s->umvplus){
9701840b 2815 if(s->pict_type==FF_P_TYPE || s->pict_type==FF_S_TYPE) {
3ada94ba
BF
2816 s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER);
2817
2818 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2819 int a,b;
2820 a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select
2821 b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I);
159ef4b0 2822 s->f_code= FFMAX3(s->f_code, a, b);
3ada94ba
BF
2823 }
2824
2825 ff_fix_long_p_mvs(s);
2826 ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0);
2827 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2828 int j;
2829 for(i=0; i<2; i++){
2830 for(j=0; j<2; j++)
2831 ff_fix_long_mvs(s, s->p_field_select_table[i], j,
2832 s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0);
2833 }
2834 }
2835 }
2836
9701840b 2837 if(s->pict_type==FF_B_TYPE){
3ada94ba
BF
2838 int a, b;
2839
2840 a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD);
2841 b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2842 s->f_code = FFMAX(a, b);
2843
2844 a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD);
2845 b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2846 s->b_code = FFMAX(a, b);
2847
2848 ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1);
2849 ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1);
2850 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2851 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2852 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2853 int dir, j;
2854 for(dir=0; dir<2; dir++){
2855 for(i=0; i<2; i++){
2856 for(j=0; j<2; j++){
2857 int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I)
2858 : (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I);
2859 ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j,
2860 s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1);
2861 }
2862 }
2863 }
2864 }
2865 }
2866 }
2867
2868 if (estimate_qp(s, 0) < 0)
2869 return -1;
2870
9701840b 2871 if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==FF_I_TYPE && !(s->flags & CODEC_FLAG_QSCALE))
3ada94ba
BF
2872 s->qscale= 3; //reduce clipping problems
2873
2874 if (s->out_format == FMT_MJPEG) {
2875 /* for mjpeg, we do include qscale in the matrix */
2876 s->intra_matrix[0] = ff_mpeg1_default_intra_matrix[0];
2877 for(i=1;i<64;i++){
2878 int j= s->dsp.idct_permutation[i];
2879
2880 s->intra_matrix[j] = av_clip_uint8((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
2881 }
69cea75f 2882 ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
3ada94ba
BF
2883 s->intra_matrix, s->intra_quant_bias, 8, 8, 1);
2884 s->qscale= 8;
2885 }
2886
2887 //FIXME var duplication
2888 s->current_picture_ptr->key_frame=
9701840b 2889 s->current_picture.key_frame= s->pict_type == FF_I_TYPE; //FIXME pic_ptr
3ada94ba
BF
2890 s->current_picture_ptr->pict_type=
2891 s->current_picture.pict_type= s->pict_type;
2892
2893 if(s->current_picture.key_frame)
2894 s->picture_in_gop_number=0;
2895
2896 s->last_bits= put_bits_count(&s->pb);
2897 switch(s->out_format) {
2898 case FMT_MJPEG:
2899 if (ENABLE_MJPEG_ENCODER)
2900 ff_mjpeg_encode_picture_header(s);
2901 break;
2902 case FMT_H261:
2903 if (ENABLE_H261_ENCODER)
2904 ff_h261_encode_picture_header(s, picture_number);
2905 break;
2906 case FMT_H263:
2907 if (ENABLE_WMV2_ENCODER && s->codec_id == CODEC_ID_WMV2)
2908 ff_wmv2_encode_picture_header(s, picture_number);
2909 else if (ENABLE_MSMPEG4_ENCODER && s->h263_msmpeg4)
2910 msmpeg4_encode_picture_header(s, picture_number);
eb75a698 2911 else if (ENABLE_MPEG4_ENCODER && s->h263_pred)
3ada94ba
BF
2912 mpeg4_encode_picture_header(s, picture_number);
2913 else if (ENABLE_RV10_ENCODER && s->codec_id == CODEC_ID_RV10)
2914 rv10_encode_picture_header(s, picture_number);
2915 else if (ENABLE_RV20_ENCODER && s->codec_id == CODEC_ID_RV20)
2916 rv20_encode_picture_header(s, picture_number);
eb75a698 2917 else if (ENABLE_FLV_ENCODER && s->codec_id == CODEC_ID_FLV1)
3ada94ba 2918 ff_flv_encode_picture_header(s, picture_number);
eb75a698 2919 else if (ENABLE_ANY_H263_ENCODER)
3ada94ba
BF
2920 h263_encode_picture_header(s, picture_number);
2921 break;
2922 case FMT_MPEG1:
a6bc5731 2923 if (ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER)
56be950a 2924 mpeg1_encode_picture_header(s, picture_number);
3ada94ba
BF
2925 break;
2926 case FMT_H264:
2927 break;
2928 default:
2929 assert(0);
2930 }
2931 bits= put_bits_count(&s->pb);
2932 s->header_bits= bits - s->last_bits;
2933
2934 for(i=1; i<s->avctx->thread_count; i++){
2935 update_duplicate_context_after_me(s->thread_context[i], s);
2936 }
2937 s->avctx->execute(s->avctx, encode_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
2938 for(i=1; i<s->avctx->thread_count; i++){
2939 merge_context_after_encode(s, s->thread_context[i]);
2940 }
2941 emms_c();
2942 return 0;
2943}
2944
2945void denoise_dct_c(MpegEncContext *s, DCTELEM *block){
2946 const int intra= s->mb_intra;
2947 int i;
2948
2949 s->dct_count[intra]++;
2950
2951 for(i=0; i<64; i++){
2952 int level= block[i];
2953
2954 if(level){
2955 if(level>0){
2956 s->dct_error_sum[intra][i] += level;
2957 level -= s->dct_offset[intra][i];
2958 if(level<0) level=0;
2959 }else{
2960 s->dct_error_sum[intra][i] -= level;
2961 level += s->dct_offset[intra][i];
2962 if(level>0) level=0;
2963 }
2964 block[i]= level;
2965 }
2966 }
2967}
2968
2969int dct_quantize_trellis_c(MpegEncContext *s,
2970 DCTELEM *block, int n,
2971 int qscale, int *overflow){
2972 const int *qmat;
2973 const uint8_t *scantable= s->intra_scantable.scantable;
2974 const uint8_t *perm_scantable= s->intra_scantable.permutated;
2975 int max=0;
2976 unsigned int threshold1, threshold2;
2977 int bias=0;
2978 int run_tab[65];
2979 int level_tab[65];
2980 int score_tab[65];
2981 int survivor[65];
2982 int survivor_count;
2983 int last_run=0;
2984 int last_level=0;
2985 int last_score= 0;
2986 int last_i;
2987 int coeff[2][64];
2988 int coeff_count[64];
2989 int qmul, qadd, start_i, last_non_zero, i, dc;
2990 const int esc_length= s->ac_esc_length;
2991 uint8_t * length;
2992 uint8_t * last_length;
2993 const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6);
2994
2995 s->dsp.fdct (block);
2996
2997 if(s->dct_error_sum)
2998 s->denoise_dct(s, block);
2999 qmul= qscale*16;
3000 qadd= ((qscale-1)|1)*8;
3001
3002 if (s->mb_intra) {
3003 int q;
3004 if (!s->h263_aic) {
3005 if (n < 4)
3006 q = s->y_dc_scale;
3007 else
3008 q = s->c_dc_scale;
3009 q = q << 3;
3010 } else{
3011 /* For AIC we skip quant/dequant of INTRADC */
3012 q = 1 << 3;
3013 qadd=0;
3014 }
3015
3016 /* note: block[0] is assumed to be positive */
3017 block[0] = (block[0] + (q >> 1)) / q;
3018 start_i = 1;
3019 last_non_zero = 0;
3020 qmat = s->q_intra_matrix[qscale];
3021 if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3022 bias= 1<<(QMAT_SHIFT-1);
3023 length = s->intra_ac_vlc_length;
3024 last_length= s->intra_ac_vlc_last_length;
3025 } else {
3026 start_i = 0;
3027 last_non_zero = -1;
3028 qmat = s->q_inter_matrix[qscale];
3029 length = s->inter_ac_vlc_length;
3030 last_length= s->inter_ac_vlc_last_length;
3031 }
3032 last_i= start_i;
3033
3034 threshold1= (1<<QMAT_SHIFT) - bias - 1;
3035 threshold2= (threshold1<<1);
3036
3037 for(i=63; i>=start_i; i--) {
3038 const int j = scantable[i];
3039 int level = block[j] * qmat[j];
3040
3041 if(((unsigned)(level+threshold1))>threshold2){
3042 last_non_zero = i;
3043 break;
3044 }
3045 }
3046
3047 for(i=start_i; i<=last_non_zero; i++) {
3048 const int j = scantable[i];
3049 int level = block[j] * qmat[j];
3050
3051// if( bias+level >= (1<<(QMAT_SHIFT - 3))
3052// || bias-level >= (1<<(QMAT_SHIFT - 3))){
3053 if(((unsigned)(level+threshold1))>threshold2){
3054 if(level>0){
3055 level= (bias + level)>>QMAT_SHIFT;
3056 coeff[0][i]= level;
3057 coeff[1][i]= level-1;
3058// coeff[2][k]= level-2;
3059 }else{
3060 level= (bias - level)>>QMAT_SHIFT;
3061 coeff[0][i]= -level;
3062 coeff[1][i]= -level+1;
3063// coeff[2][k]= -level+2;
3064 }
3065 coeff_count[i]= FFMIN(level, 2);
3066 assert(coeff_count[i]);
3067 max |=level;
3068 }else{
3069 coeff[0][i]= (level>>31)|1;
3070 coeff_count[i]= 1;
3071 }
3072 }
3073
3074 *overflow= s->max_qcoeff < max; //overflow might have happened
3075
3076 if(last_non_zero < start_i){
3077 memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3078 return last_non_zero;
3079 }
3080
3081 score_tab[start_i]= 0;
3082 survivor[0]= start_i;
3083 survivor_count= 1;
3084
3085 for(i=start_i; i<=last_non_zero; i++){
e6dba5df 3086 int level_index, j, zero_distortion;
b6bffc46 3087 int dct_coeff= FFABS(block[ scantable[i] ]);
3ada94ba 3088 int best_score=256*256*256*120;
b6bffc46
MN
3089
3090 if ( s->dsp.fdct == fdct_ifast
3091#ifndef FAAN_POSTSCALE
3092 || s->dsp.fdct == ff_faandct
3093#endif
3094 )
3095 dct_coeff= (dct_coeff*inv_aanscales[ scantable[i] ]) >> 12;
e6dba5df 3096 zero_distortion= dct_coeff*dct_coeff;
b6bffc46 3097
3ada94ba 3098 for(level_index=0; level_index < coeff_count[i]; level_index++){
e6dba5df 3099 int distortion;
3ada94ba
BF
3100 int level= coeff[level_index][i];
3101 const int alevel= FFABS(level);
3102 int unquant_coeff;
3103
3104 assert(level);
3105
3106 if(s->out_format == FMT_H263){
3107 unquant_coeff= alevel*qmul + qadd;
3108 }else{ //MPEG1
3109 j= s->dsp.idct_permutation[ scantable[i] ]; //FIXME optimize
3110 if(s->mb_intra){
3111 unquant_coeff = (int)( alevel * qscale * s->intra_matrix[j]) >> 3;
3112 unquant_coeff = (unquant_coeff - 1) | 1;
3113 }else{
3114 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[j])) >> 4;
3115 unquant_coeff = (unquant_coeff - 1) | 1;
3116 }
3117 unquant_coeff<<= 3;
3118 }
3119
e6dba5df 3120 distortion= (unquant_coeff - dct_coeff) * (unquant_coeff - dct_coeff) - zero_distortion;
3ada94ba
BF
3121 level+=64;
3122 if((level&(~127)) == 0){
3123 for(j=survivor_count-1; j>=0; j--){
3124 int run= i - survivor[j];
e6dba5df 3125 int score= distortion + length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3ada94ba
BF
3126 score += score_tab[i-run];
3127
3128 if(score < best_score){
3129 best_score= score;
3130 run_tab[i+1]= run;
3131 level_tab[i+1]= level-64;
3132 }
3133 }
3134
3135 if(s->out_format == FMT_H263){
3136 for(j=survivor_count-1; j>=0; j--){
3137 int run= i - survivor[j];
e6dba5df 3138 int score= distortion + last_length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3ada94ba
BF
3139 score += score_tab[i-run];
3140 if(score < last_score){
3141 last_score= score;
3142 last_run= run;
3143 last_level= level-64;
3144 last_i= i+1;
3145 }
3146 }
3147 }
3148 }else{
e6dba5df 3149 distortion += esc_length*lambda;
3ada94ba
BF
3150 for(j=survivor_count-1; j>=0; j--){
3151 int run= i - survivor[j];
e6dba5df 3152 int score= distortion + score_tab[i-run];
3ada94ba
BF
3153
3154 if(score < best_score){
3155 best_score= score;
3156 run_tab[i+1]= run;
3157 level_tab[i+1]= level-64;
3158 }
3159 }
3160
3161 if(s->out_format == FMT_H263){
3162 for(j=survivor_count-1; j>=0; j--){
3163 int run= i - survivor[j];
e6dba5df 3164 int score= distortion + score_tab[i-run];
3ada94ba
BF
3165 if(score < last_score){
3166 last_score= score;
3167 last_run= run;
3168 last_level= level-64;
3169 last_i= i+1;
3170 }
3171 }
3172 }
3173 }
3174 }
3175
3176 score_tab[i+1]= best_score;
3177
3178 //Note: there is a vlc code in mpeg4 which is 1 bit shorter then another one with a shorter run and the same level
3179 if(last_non_zero <= 27){
3180 for(; survivor_count; survivor_count--){
3181 if(score_tab[ survivor[survivor_count-1] ] <= best_score)
3182 break;
3183 }
3184 }else{
3185 for(; survivor_count; survivor_count--){
3186 if(score_tab[ survivor[survivor_count-1] ] <= best_score + lambda)
3187 break;
3188 }
3189 }
3190
3191 survivor[ survivor_count++ ]= i+1;
3192 }
3193
3194 if(s->out_format != FMT_H263){
3195 last_score= 256*256*256*120;
3196 for(i= survivor[0]; i<=last_non_zero + 1; i++){
3197 int score= score_tab[i];
3198 if(i) score += lambda*2; //FIXME exacter?
3199
3200 if(score < last_score){
3201 last_score= score;
3202 last_i= i;
3203 last_level= level_tab[i];
3204 last_run= run_tab[i];
3205 }
3206 }
3207 }
3208
3209 s->coded_score[n] = last_score;
3210
3211 dc= FFABS(block[0]);
3212 last_non_zero= last_i - 1;
3213 memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3214
3215 if(last_non_zero < start_i)
3216 return last_non_zero;
3217
3218 if(last_non_zero == 0 && start_i == 0){
3219 int best_level= 0;
3220 int best_score= dc * dc;
3221
3222 for(i=0; i<coeff_count[0]; i++){
3223 int level= coeff[i][0];
3224 int alevel= FFABS(level);
3225 int unquant_coeff, score, distortion;
3226
3227 if(s->out_format == FMT_H263){
3228 unquant_coeff= (alevel*qmul + qadd)>>3;
3229 }else{ //MPEG1
3230 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[0])) >> 4;
3231 unquant_coeff = (unquant_coeff - 1) | 1;
3232 }
3233 unquant_coeff = (unquant_coeff + 4) >> 3;
3234 unquant_coeff<<= 3 + 3;
3235
3236 distortion= (unquant_coeff - dc) * (unquant_coeff - dc);
3237 level+=64;
3238 if((level&(~127)) == 0) score= distortion + last_length[UNI_AC_ENC_INDEX(0, level)]*lambda;
3239 else score= distortion + esc_length*lambda;
3240
3241 if(score < best_score){
3242 best_score= score;
3243 best_level= level - 64;
3244 }
3245 }
3246 block[0]= best_level;
3247 s->coded_score[n] = best_score - dc*dc;
3248 if(best_level == 0) return -1;
3249 else return last_non_zero;
3250 }
3251
3252 i= last_i;
3253 assert(last_level);
3254
3255 block[ perm_scantable[last_non_zero] ]= last_level;
3256 i -= last_run + 1;
3257
3258 for(; i>start_i; i -= run_tab[i] + 1){
3259 block[ perm_scantable[i-1] ]= level_tab[i];
3260 }
3261
3262 return last_non_zero;
3263}
3264
3265//#define REFINE_STATS 1
3266static int16_t basis[64][64];
3267
3268static void build_basis(uint8_t *perm){
3269 int i, j, x, y;
3270 emms_c();
3271 for(i=0; i<8; i++){
3272 for(j=0; j<8; j++){
3273 for(y=0; y<8; y++){
3274 for(x=0; x<8; x++){
3275 double s= 0.25*(1<<BASIS_SHIFT);
3276 int index= 8*i + j;
3277 int perm_index= perm[index];
3278 if(i==0) s*= sqrt(0.5);
3279 if(j==0) s*= sqrt(0.5);
3280 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)));
3281 }
3282 }
3283 }
3284 }
3285}
3286
3287static int dct_quantize_refine(MpegEncContext *s, //FIXME breaks denoise?
3288 DCTELEM *block, int16_t *weight, DCTELEM *orig,
3289 int n, int qscale){
3290 int16_t rem[64];
3291 DECLARE_ALIGNED_16(DCTELEM, d1[64]);
3292 const int *qmat;
3293 const uint8_t *scantable= s->intra_scantable.scantable;
3294 const uint8_t *perm_scantable= s->intra_scantable.permutated;
3295// unsigned int threshold1, threshold2;
3296// int bias=0;
3297 int run_tab[65];
3298 int prev_run=0;
3299 int prev_level=0;
3300 int qmul, qadd, start_i, last_non_zero, i, dc;
3301 uint8_t * length;
3302 uint8_t * last_length;
3303 int lambda;
3304 int rle_index, run, q = 1, sum; //q is only used when s->mb_intra is true
3305#ifdef REFINE_STATS
3306static int count=0;
3307static int after_last=0;
3308static int to_zero=0;
3309static int from_zero=0;
3310static int raise=0;
3311static int lower=0;
3312static int messed_sign=0;
3313#endif
3314
3315 if(basis[0][0] == 0)
3316 build_basis(s->dsp.idct_permutation);
3317
3318 qmul= qscale*2;
3319 qadd= (qscale-1)|1;
3320 if (s->mb_intra) {
3321 if (!s->h263_aic) {
3322 if (n < 4)
3323 q = s->y_dc_scale;
3324 else
3325 q = s->c_dc_scale;
3326 } else{
3327 /* For AIC we skip quant/dequant of INTRADC */
3328 q = 1;
3329 qadd=0;
3330 }
3331 q <<= RECON_SHIFT-3;
3332 /* note: block[0] is assumed to be positive */
3333 dc= block[0]*q;
3334// block[0] = (block[0] + (q >> 1)) / q;
3335 start_i = 1;
3336 qmat = s->q_intra_matrix[qscale];
3337// if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3338// bias= 1<<(QMAT_SHIFT-1);
3339 length = s->intra_ac_vlc_length;
3340 last_length= s->intra_ac_vlc_last_length;
3341 } else {
3342 dc= 0;
3343 start_i = 0;
3344 qmat = s->q_inter_matrix[qscale];
3345 length = s->inter_ac_vlc_length;
3346 last_length= s->inter_ac_vlc_last_length;
3347 }
3348 last_non_zero = s->block_last_index[n];
3349
3350#ifdef REFINE_STATS
3351{START_TIMER
3352#endif
3353 dc += (1<<(RECON_SHIFT-1));
3354 for(i=0; i<64; i++){
3355 rem[i]= dc - (orig[i]<<RECON_SHIFT); //FIXME use orig dirrectly instead of copying to rem[]
3356 }
3357#ifdef REFINE_STATS
3358STOP_TIMER("memset rem[]")}
3359#endif
3360 sum=0;
3361 for(i=0; i<64; i++){
3362 int one= 36;
3363 int qns=4;
3364 int w;
3365
3366 w= FFABS(weight[i]) + qns*one;
3367 w= 15 + (48*qns*one + w/2)/w; // 16 .. 63
3368
3369 weight[i] = w;
3370// w=weight[i] = (63*qns + (w/2)) / w;
3371
3372 assert(w>0);
3373 assert(w<(1<<6));
3374 sum += w*w;
3375 }
3376 lambda= sum*(uint64_t)s->lambda2 >> (FF_LAMBDA_SHIFT - 6 + 6 + 6 + 6);
3377#ifdef REFINE_STATS
3378{START_TIMER
3379#endif
3380 run=0;
3381 rle_index=0;
3382 for(i=start_i; i<=last_non_zero; i++){
3383 int j= perm_scantable[i];
3384 const int level= block[j];
3385 int coeff;
3386
3387 if(level){
3388 if(level<0) coeff= qmul*level - qadd;
3389 else coeff= qmul*level + qadd;
3390 run_tab[rle_index++]=run;
3391 run=0;
3392
3393 s->dsp.add_8x8basis(rem, basis[j], coeff);
3394 }else{
3395 run++;
3396 }
3397 }
3398#ifdef REFINE_STATS
3399if(last_non_zero>0){
3400STOP_TIMER("init rem[]")
3401}
3402}
3403
3404{START_TIMER
3405#endif
3406 for(;;){
3407 int best_score=s->dsp.try_8x8basis(rem, weight, basis[0], 0);
3408 int best_coeff=0;
3409 int best_change=0;
3410 int run2, best_unquant_change=0, analyze_gradient;
3411#ifdef REFINE_STATS
3412{START_TIMER
3413#endif
3414 analyze_gradient = last_non_zero > 2 || s->avctx->quantizer_noise_shaping >= 3;
3415
3416 if(analyze_gradient){
3417#ifdef REFINE_STATS
3418{START_TIMER
3419#endif
3420 for(i=0; i<64; i++){
3421 int w= weight[i];
3422
3423 d1[i] = (rem[i]*w*w + (1<<(RECON_SHIFT+12-1)))>>(RECON_SHIFT+12);
3424 }
3425#ifdef REFINE_STATS
3426STOP_TIMER("rem*w*w")}
3427{START_TIMER
3428#endif
3429 s->dsp.fdct(d1);
3430#ifdef REFINE_STATS
3431STOP_TIMER("dct")}
3432#endif
3433 }
3434
3435 if(start_i){
3436 const int level= block[0];
3437 int change, old_coeff;
3438
3439 assert(s->mb_intra);
3440
3441 old_coeff= q*level;
3442
3443 for(change=-1; change<=1; change+=2){
3444 int new_level= level + change;
3445 int score, new_coeff;
3446
3447 new_coeff= q*new_level;
3448 if(new_coeff >= 2048 || new_coeff < 0)
3449 continue;
3450
3451 score= s->dsp.try_8x8basis(rem, weight, basis[0], new_coeff - old_coeff);
3452 if(score<best_score){
3453 best_score= score;
3454 best_coeff= 0;
3455 best_change= change;
3456 best_unquant_change= new_coeff - old_coeff;
3457 }
3458 }
3459 }
3460
3461 run=0;
3462 rle_index=0;
3463 run2= run_tab[rle_index++];
3464 prev_level=0;
3465 prev_run=0;
3466
3467 for(i=start_i; i<64; i++){
3468 int j= perm_scantable[i];
3469 const int level= block[j];
3470 int change, old_coeff;
3471
3472 if(s->avctx->quantizer_noise_shaping < 3 && i > last_non_zero + 1)
3473 break;
3474
3475 if(level){
3476 if(level<0) old_coeff= qmul*level - qadd;
3477 else old_coeff= qmul*level + qadd;
3478 run2= run_tab[rle_index++]; //FIXME ! maybe after last
3479 }else{
3480 old_coeff=0;
3481 run2--;
3482 assert(run2>=0 || i >= last_non_zero );
3483 }
3484
3485 for(change=-1; change<=1; change+=2){
3486 int new_level= level + change;
3487 int score, new_coeff, unquant_change;
3488
3489 score=0;
3490 if(s->avctx->quantizer_noise_shaping < 2 && FFABS(new_level) > FFABS(level))
3491 continue;
3492
3493 if(new_level){
3494 if(new_level<0) new_coeff= qmul*new_level - qadd;
3495 else new_coeff= qmul*new_level + qadd;
3496 if(new_coeff >= 2048 || new_coeff <= -2048)
3497 continue;
3498 //FIXME check for overflow
3499
3500 if(level){
3501 if(level < 63 && level > -63){
3502 if(i < last_non_zero)
3503 score += length[UNI_AC_ENC_INDEX(run, new_level+64)]
3504 - length[UNI_AC_ENC_INDEX(run, level+64)];
3505 else
3506 score += last_length[UNI_AC_ENC_INDEX(run, new_level+64)]
3507 - last_length[UNI_AC_ENC_INDEX(run, level+64)];
3508 }
3509 }else{
3510 assert(FFABS(new_level)==1);
3511
3512 if(analyze_gradient){
3513 int g= d1[ scantable[i] ];
3514 if(g && (g^new_level) >= 0)
3515 continue;
3516 }
3517
3518 if(i < last_non_zero){
3519 int next_i= i + run2 + 1;
3520 int next_level= block[ perm_scantable[next_i] ] + 64;
3521
3522 if(next_level&(~127))
3523 next_level= 0;
3524
3525 if(next_i < last_non_zero)
3526 score += length[UNI_AC_ENC_INDEX(run, 65)]
3527 + length[UNI_AC_ENC_INDEX(run2, next_level)]
3528 - length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3529 else
3530 score += length[UNI_AC_ENC_INDEX(run, 65)]
3531 + last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3532 - last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3533 }else{
3534 score += last_length[UNI_AC_ENC_INDEX(run, 65)];
3535 if(prev_level){
3536 score += length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3537 - last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3538 }
3539 }
3540 }
3541 }else{
3542 new_coeff=0;
3543 assert(FFABS(level)==1);
3544
3545 if(i < last_non_zero){
3546 int next_i= i + run2 + 1;
3547 int next_level= block[ perm_scantable[next_i] ] + 64;
3548
3549 if(next_level&(~127))
3550 next_level= 0;
3551
3552 if(next_i < last_non_zero)
3553 score += length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3554 - length[UNI_AC_ENC_INDEX(run2, next_level)]
3555 - length[UNI_AC_ENC_INDEX(run, 65)];
3556 else
3557 score += last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3558 - last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3559 - length[UNI_AC_ENC_INDEX(run, 65)];
3560 }else{
3561 score += -last_length[UNI_AC_ENC_INDEX(run, 65)];
3562 if(prev_level){
3563 score += last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3564 - length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3565 }
3566 }
3567 }
3568
3569 score *= lambda;
3570
3571 unquant_change= new_coeff - old_coeff;
3572 assert((score < 100*lambda && score > -100*lambda) || lambda==0);
3573
3574 score+= s->dsp.try_8x8basis(rem, weight, basis[j], unquant_change);
3575 if(score<best_score){
3576 best_score= score;
3577 best_coeff= i;
3578 best_change= change;
3579 best_unquant_change= unquant_change;
3580 }
3581 }
3582 if(level){
3583 prev_level= level + 64;
3584 if(prev_level&(~127))
3585 prev_level= 0;
3586 prev_run= run;
3587 run=0;
3588 }else{
3589 run++;
3590 }
3591 }
3592#ifdef REFINE_STATS
3593STOP_TIMER("iterative step")}
3594#endif
3595
3596 if(best_change){
3597 int j= perm_scantable[ best_coeff ];
3598
3599 block[j] += best_change;
3600
3601 if(best_coeff > last_non_zero){
3602 last_non_zero= best_coeff;
3603 assert(block[j]);
3604#ifdef REFINE_STATS
3605after_last++;
3606#endif
3607 }else{
3608#ifdef REFINE_STATS
3609if(block[j]){
3610 if(block[j] - best_change){
3611 if(FFABS(block[j]) > FFABS(block[j] - best_change)){
3612 raise++;
3613 }else{
3614 lower++;
3615 }
3616 }else{
3617 from_zero++;
3618 }
3619}else{
3620 to_zero++;
3621}
3622#endif
3623 for(; last_non_zero>=start_i; last_non_zero--){
3624 if(block[perm_scantable[last_non_zero]])
3625 break;
3626 }
3627 }
3628#ifdef REFINE_STATS
3629count++;
3630if(256*256*256*64 % count == 0){
3631 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);
3632}
3633#endif
3634 run=0;
3635 rle_index=0;
3636 for(i=start_i; i<=last_non_zero; i++){
3637 int j= perm_scantable[i];
3638 const int level= block[j];
3639
3640 if(level){
3641 run_tab[rle_index++]=run;
3642 run=0;
3643 }else{
3644 run++;
3645 }
3646 }
3647
3648 s->dsp.add_8x8basis(rem, basis[j], best_unquant_change);
3649 }else{
3650 break;
3651 }
3652 }
3653#ifdef REFINE_STATS
3654if(last_non_zero>0){
3655STOP_TIMER("iterative search")
3656}
3657}
3658#endif
3659
3660 return last_non_zero;
3661}
3662
3663int dct_quantize_c(MpegEncContext *s,
3664 DCTELEM *block, int n,
3665 int qscale, int *overflow)
3666{
3667 int i, j, level, last_non_zero, q, start_i;
3668 const int *qmat;
3669 const uint8_t *scantable= s->intra_scantable.scantable;
3670 int bias;
3671 int max=0;
3672 unsigned int threshold1, threshold2;
3673
3674 s->dsp.fdct (block);
3675
3676 if(s->dct_error_sum)
3677 s->denoise_dct(s, block);
3678
3679 if (s->mb_intra) {
3680 if (!s->h263_aic) {
3681 if (n < 4)
3682 q = s->y_dc_scale;
3683 else
3684 q = s->c_dc_scale;
3685 q = q << 3;
3686 } else
3687 /* For AIC we skip quant/dequant of INTRADC */
3688 q = 1 << 3;
3689
3690 /* note: block[0] is assumed to be positive */
3691 block[0] = (block[0] + (q >> 1)) / q;
3692 start_i = 1;
3693 last_non_zero = 0;
3694 qmat = s->q_intra_matrix[qscale];
3695 bias= s->intra_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3696 } else {
3697 start_i = 0;
3698 last_non_zero = -1;
3699 qmat = s->q_inter_matrix[qscale];
3700 bias= s->inter_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3701 }
3702 threshold1= (1<<QMAT_SHIFT) - bias - 1;
3703 threshold2= (threshold1<<1);
3704 for(i=63;i>=start_i;i--) {
3705 j = scantable[i];
3706 level = block[j] * qmat[j];
3707
3708 if(((unsigned)(level+threshold1))>threshold2){
3709 last_non_zero = i;
3710 break;
3711 }else{
3712 block[j]=0;
3713 }
3714 }
3715 for(i=start_i; i<=last_non_zero; i++) {
3716 j = scantable[i];
3717 level = block[j] * qmat[j];
3718
3719// if( bias+level >= (1<<QMAT_SHIFT)
3720// || bias-level >= (1<<QMAT_SHIFT)){
3721 if(((unsigned)(level+threshold1))>threshold2){
3722 if(level>0){
3723 level= (bias + level)>>QMAT_SHIFT;
3724 block[j]= level;
3725 }else{
3726 level= (bias - level)>>QMAT_SHIFT;
3727 block[j]= -level;
3728 }
3729 max |=level;
3730 }else{
3731 block[j]=0;
3732 }
3733 }
3734 *overflow= s->max_qcoeff < max; //overflow might have happened
3735
3736 /* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */
3737 if (s->dsp.idct_permutation_type != FF_NO_IDCT_PERM)
3738 ff_block_permute(block, s->dsp.idct_permutation, scantable, last_non_zero);
3739
3740 return last_non_zero;
3741}
3742
3743AVCodec h263_encoder = {
3744 "h263",
3745 CODEC_TYPE_VIDEO,
3746 CODEC_ID_H263,
3747 sizeof(MpegEncContext),
3748 MPV_encode_init,
3749 MPV_encode_picture,
3750 MPV_encode_end,
eacced45 3751 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
fe4bf374 3752 .long_name= NULL_IF_CONFIG_SMALL("H.263"),
3ada94ba
BF
3753};
3754
3755AVCodec h263p_encoder = {
3756 "h263p",
3757 CODEC_TYPE_VIDEO,
3758 CODEC_ID_H263P,
3759 sizeof(MpegEncContext),
3760 MPV_encode_init,
3761 MPV_encode_picture,
3762 MPV_encode_end,
eacced45 3763 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
fe4bf374 3764 .long_name= NULL_IF_CONFIG_SMALL("H.263+ / H.263 version 2"),
3ada94ba
BF
3765};
3766
3767AVCodec flv_encoder = {
3768 "flv",
3769 CODEC_TYPE_VIDEO,
3770 CODEC_ID_FLV1,
3771 sizeof(MpegEncContext),
3772 MPV_encode_init,
3773 MPV_encode_picture,
3774 MPV_encode_end,
eacced45 3775 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},