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>
6 * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
8 * This file is part of FFmpeg.
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.
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.
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
27 * The simplest mpeg encoder (well, it was the simplest!).
30 #include "libavutil/intmath.h"
33 #include "mpegvideo.h"
34 #include "mpegvideo_common.h"
40 #include "aandcttab.h"
42 #include "mpeg4video.h"
49 static int encode_picture(MpegEncContext *s, int picture_number);
50 static int dct_quantize_refine(MpegEncContext *s, DCTELEM *block, int16_t *weight, DCTELEM *orig, int n, int qscale);
51 static int sse_mb(MpegEncContext *s);
52 static void denoise_dct_c(MpegEncContext *s, DCTELEM *block);
53 static int dct_quantize_trellis_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
55 /* enable all paranoid tests for rounding, overflows, etc... */
60 static uint8_t default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
61 static uint8_t default_fcode_tab[MAX_MV*2+1];
63 void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
64 const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra)
69 for(qscale=qmin; qscale<=qmax; qscale++){
71 if (dsp->fdct == ff_jpeg_fdct_islow
73 || dsp->fdct == ff_faandct
77 const int j= dsp->idct_permutation[i];
78 /* 16 <= qscale * quant_matrix[i] <= 7905 */
79 /* 19952 <= ff_aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
80 /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1 << 36) / 249205026 */
81 /* 3444240 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
83 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) /
84 (qscale * quant_matrix[j]));
86 } else if (dsp->fdct == fdct_ifast
87 #ifndef FAAN_POSTSCALE
88 || dsp->fdct == ff_faandct
92 const int j= dsp->idct_permutation[i];
93 /* 16 <= qscale * quant_matrix[i] <= 7905 */
94 /* 19952 <= ff_aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
95 /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
96 /* 3444240 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
98 qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) /
99 (ff_aanscales[i] * qscale * quant_matrix[j]));
103 const int j= dsp->idct_permutation[i];
104 /* We can safely suppose that 16 <= quant_matrix[i] <= 255
105 So 16 <= qscale * quant_matrix[i] <= 7905
106 so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
107 so 32768 >= (1<<19) / (qscale * quant_matrix[i]) >= 67
109 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / (qscale * quant_matrix[j]));
110 // qmat [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
111 qmat16[qscale][0][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[j]);
113 if(qmat16[qscale][0][i]==0 || qmat16[qscale][0][i]==128*256) qmat16[qscale][0][i]=128*256-1;
114 qmat16[qscale][1][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][0][i]);
118 for(i=intra; i<64; i++){
120 if (dsp->fdct == fdct_ifast
121 #ifndef FAAN_POSTSCALE
122 || dsp->fdct == ff_faandct
125 max = (8191LL*ff_aanscales[i]) >> 14;
127 while(((max * qmat[qscale][i]) >> shift) > INT_MAX){
133 av_log(NULL, AV_LOG_INFO, "Warning, QMAT_SHIFT is larger than %d, overflows possible\n", QMAT_SHIFT - shift);
137 static inline void update_qscale(MpegEncContext *s){
138 s->qscale= (s->lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
139 s->qscale= av_clip(s->qscale, s->avctx->qmin, s->avctx->qmax);
141 s->lambda2= (s->lambda*s->lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
144 void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix){
150 put_bits(pb, 8, matrix[ ff_zigzag_direct[i] ]);
157 * init s->current_picture.qscale_table from s->lambda_table
159 void ff_init_qscale_tab(MpegEncContext *s){
160 int8_t * const qscale_table= s->current_picture.qscale_table;
163 for(i=0; i<s->mb_num; i++){
164 unsigned int lam= s->lambda_table[ s->mb_index2xy[i] ];
165 int qp= (lam*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
166 qscale_table[ s->mb_index2xy[i] ]= av_clip(qp, s->avctx->qmin, s->avctx->qmax);
170 static void copy_picture_attributes(MpegEncContext *s, AVFrame *dst, AVFrame *src){
173 dst->pict_type = src->pict_type;
174 dst->quality = src->quality;
175 dst->coded_picture_number = src->coded_picture_number;
176 dst->display_picture_number = src->display_picture_number;
177 // dst->reference = src->reference;
179 dst->interlaced_frame = src->interlaced_frame;
180 dst->top_field_first = src->top_field_first;
182 if(s->avctx->me_threshold){
183 if(!src->motion_val[0])
184 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_val not set!\n");
186 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.mb_type not set!\n");
187 if(!src->ref_index[0])
188 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.ref_index not set!\n");
189 if(src->motion_subsample_log2 != dst->motion_subsample_log2)
190 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_subsample_log2 doesn't match! (%d!=%d)\n",
191 src->motion_subsample_log2, dst->motion_subsample_log2);
193 memcpy(dst->mb_type, src->mb_type, s->mb_stride * s->mb_height * sizeof(dst->mb_type[0]));
196 int stride= ((16*s->mb_width )>>src->motion_subsample_log2) + 1;
197 int height= ((16*s->mb_height)>>src->motion_subsample_log2);
199 if(src->motion_val[i] && src->motion_val[i] != dst->motion_val[i]){
200 memcpy(dst->motion_val[i], src->motion_val[i], 2*stride*height*sizeof(int16_t));
202 if(src->ref_index[i] && src->ref_index[i] != dst->ref_index[i]){
203 memcpy(dst->ref_index[i], src->ref_index[i], s->mb_stride*4*s->mb_height*sizeof(int8_t));
209 static void update_duplicate_context_after_me(MpegEncContext *dst, MpegEncContext *src){
210 #define COPY(a) dst->a= src->a
212 COPY(current_picture);
218 COPY(picture_in_gop_number);
219 COPY(gop_picture_number);
220 COPY(frame_pred_frame_dct); //FIXME don't set in encode_header
221 COPY(progressive_frame); //FIXME don't set in encode_header
222 COPY(partitioned_frame); //FIXME don't set in encode_header
227 * sets the given MpegEncContext to defaults for encoding.
228 * the changed fields will not depend upon the prior state of the MpegEncContext.
230 static void MPV_encode_defaults(MpegEncContext *s){
232 MPV_common_defaults(s);
234 for(i=-16; i<16; i++){
235 default_fcode_tab[i + MAX_MV]= 1;
237 s->me.mv_penalty= default_mv_penalty;
238 s->fcode_tab= default_fcode_tab;
241 /* init video encoder */
242 av_cold int MPV_encode_init(AVCodecContext *avctx)
244 MpegEncContext *s = avctx->priv_data;
246 int chroma_h_shift, chroma_v_shift;
248 MPV_encode_defaults(s);
250 switch (avctx->codec_id) {
251 case CODEC_ID_MPEG2VIDEO:
252 if(avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P){
253 av_log(avctx, AV_LOG_ERROR, "only YUV420 and YUV422 are supported\n");
258 if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P && avctx->pix_fmt != PIX_FMT_YUVJ444P && avctx->pix_fmt != PIX_FMT_BGRA &&
259 ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P && avctx->pix_fmt != PIX_FMT_YUV444P) || avctx->strict_std_compliance>FF_COMPLIANCE_UNOFFICIAL)){
260 av_log(avctx, AV_LOG_ERROR, "colorspace not supported in LJPEG\n");
265 if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P &&
266 ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P) || avctx->strict_std_compliance>FF_COMPLIANCE_UNOFFICIAL)){
267 av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n");
272 if(avctx->pix_fmt != PIX_FMT_YUV420P){
273 av_log(avctx, AV_LOG_ERROR, "only YUV420 is supported\n");
278 switch (avctx->pix_fmt) {
279 case PIX_FMT_YUVJ422P:
280 case PIX_FMT_YUV422P:
281 s->chroma_format = CHROMA_422;
283 case PIX_FMT_YUVJ420P:
284 case PIX_FMT_YUV420P:
286 s->chroma_format = CHROMA_420;
290 s->bit_rate = avctx->bit_rate;
291 s->width = avctx->width;
292 s->height = avctx->height;
293 if(avctx->gop_size > 600 && avctx->strict_std_compliance>FF_COMPLIANCE_EXPERIMENTAL){
294 av_log(avctx, AV_LOG_ERROR, "Warning keyframe interval too large! reducing it ...\n");
297 s->gop_size = avctx->gop_size;
299 s->flags= avctx->flags;
300 s->flags2= avctx->flags2;
301 s->max_b_frames= avctx->max_b_frames;
302 s->codec_id= avctx->codec->id;
303 s->luma_elim_threshold = avctx->luma_elim_threshold;
304 s->chroma_elim_threshold= avctx->chroma_elim_threshold;
305 s->strict_std_compliance= avctx->strict_std_compliance;
306 s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
307 s->quarter_sample= (avctx->flags & CODEC_FLAG_QPEL)!=0;
308 s->mpeg_quant= avctx->mpeg_quant;
309 s->rtp_mode= !!avctx->rtp_payload_size;
310 s->intra_dc_precision= avctx->intra_dc_precision;
311 s->user_specified_pts = AV_NOPTS_VALUE;
313 if (s->gop_size <= 1) {
320 s->me_method = avctx->me_method;
323 s->fixed_qscale = !!(avctx->flags & CODEC_FLAG_QSCALE);
325 s->adaptive_quant= ( s->avctx->lumi_masking
326 || s->avctx->dark_masking
327 || s->avctx->temporal_cplx_masking
328 || s->avctx->spatial_cplx_masking
329 || s->avctx->p_masking
330 || s->avctx->border_masking
331 || (s->flags&CODEC_FLAG_QP_RD))
334 s->obmc= !!(s->flags & CODEC_FLAG_OBMC);
335 s->loop_filter= !!(s->flags & CODEC_FLAG_LOOP_FILTER);
336 s->alternate_scan= !!(s->flags & CODEC_FLAG_ALT_SCAN);
337 s->intra_vlc_format= !!(s->flags2 & CODEC_FLAG2_INTRA_VLC);
338 s->q_scale_type= !!(s->flags2 & CODEC_FLAG2_NON_LINEAR_QUANT);
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");
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");
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");
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");
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");
363 if(avctx->rc_buffer_size && avctx->bit_rate*(int64_t)avctx->time_base.num > avctx->rc_buffer_size * (int64_t)avctx->time_base.den){
364 av_log(avctx, AV_LOG_ERROR, "VBV buffer too small for bitrate\n");
368 if(!s->fixed_qscale && 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");
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){
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");
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");
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");
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");
396 if(s->quarter_sample && s->codec_id != CODEC_ID_MPEG4){
397 av_log(avctx, AV_LOG_ERROR, "qpel not supported by codec\n");
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");
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");
411 if ((s->codec_id == CODEC_ID_MPEG4 || s->codec_id == CODEC_ID_H263 ||
412 s->codec_id == CODEC_ID_H263P) &&
413 (avctx->sample_aspect_ratio.num > 255 || avctx->sample_aspect_ratio.den > 255)) {
414 av_log(avctx, AV_LOG_ERROR, "Invalid pixel aspect ratio %i/%i, limit is 255/255\n",
415 avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den);
419 if((s->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN))
420 && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG2VIDEO){
421 av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n");
425 if(s->mpeg_quant && s->codec_id != CODEC_ID_MPEG4){ //FIXME mpeg2 uses that too
426 av_log(avctx, AV_LOG_ERROR, "mpeg2 style quantization not supported by codec\n");
430 if((s->flags & CODEC_FLAG_CBP_RD) && !avctx->trellis){
431 av_log(avctx, AV_LOG_ERROR, "CBP RD needs trellis quant\n");
435 if((s->flags & CODEC_FLAG_QP_RD) && s->avctx->mb_decision != FF_MB_DECISION_RD){
436 av_log(avctx, AV_LOG_ERROR, "QP RD needs mbd=2\n");
440 if(s->avctx->scenechange_threshold < 1000000000 && (s->flags & CODEC_FLAG_CLOSED_GOP)){
441 av_log(avctx, AV_LOG_ERROR, "closed gop with scene change detection are not supported yet, set threshold to 1000000000\n");
445 if((s->flags2 & CODEC_FLAG2_INTRA_VLC) && s->codec_id != CODEC_ID_MPEG2VIDEO){
446 av_log(avctx, AV_LOG_ERROR, "intra vlc table not supported by codec\n");
450 if(s->flags & CODEC_FLAG_LOW_DELAY){
451 if (s->codec_id != CODEC_ID_MPEG2VIDEO){
452 av_log(avctx, AV_LOG_ERROR, "low delay forcing is only available for mpeg2\n");
455 if (s->max_b_frames != 0){
456 av_log(avctx, AV_LOG_ERROR, "b frames cannot be used with low delay\n");
461 if(s->q_scale_type == 1){
462 if(s->codec_id != CODEC_ID_MPEG2VIDEO){
463 av_log(avctx, AV_LOG_ERROR, "non linear quant is only available for mpeg2\n");
466 if(avctx->qmax > 12){
467 av_log(avctx, AV_LOG_ERROR, "non linear quant only supports qmax <= 12 currently\n");
472 if(s->avctx->thread_count > 1 && s->codec_id != CODEC_ID_MPEG4
473 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO
474 && (s->codec_id != CODEC_ID_H263P || !(s->flags & CODEC_FLAG_H263P_SLICE_STRUCT))){
475 av_log(avctx, AV_LOG_ERROR, "multi threaded encoding not supported by codec\n");
479 if(s->avctx->thread_count < 1){
480 av_log(avctx, AV_LOG_ERROR, "automatic thread number detection not supported by codec, patch welcome\n");
484 if(s->avctx->thread_count > 1)
487 if(!avctx->time_base.den || !avctx->time_base.num){
488 av_log(avctx, AV_LOG_ERROR, "framerate not set\n");
492 i= (INT_MAX/2+128)>>8;
493 if(avctx->me_threshold >= i){
494 av_log(avctx, AV_LOG_ERROR, "me_threshold too large, max is %d\n", i - 1);
497 if(avctx->mb_threshold >= i){
498 av_log(avctx, AV_LOG_ERROR, "mb_threshold too large, max is %d\n", i - 1);
502 if(avctx->b_frame_strategy && (avctx->flags&CODEC_FLAG_PASS2)){
503 av_log(avctx, AV_LOG_INFO, "notice: b_frame_strategy only affects the first pass\n");
504 avctx->b_frame_strategy = 0;
507 i= av_gcd(avctx->time_base.den, avctx->time_base.num);
509 av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n");
510 avctx->time_base.den /= i;
511 avctx->time_base.num /= i;
515 if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO || s->codec_id==CODEC_ID_MJPEG){
516 s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x
517 s->inter_quant_bias= 0;
519 s->intra_quant_bias=0;
520 s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x
523 if(avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
524 s->intra_quant_bias= avctx->intra_quant_bias;
525 if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)
526 s->inter_quant_bias= avctx->inter_quant_bias;
528 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift);
530 if(avctx->codec_id == CODEC_ID_MPEG4 && s->avctx->time_base.den > (1<<16)-1){
531 av_log(avctx, AV_LOG_ERROR, "timebase %d/%d not supported by MPEG 4 standard, "
532 "the maximum admitted value for the timebase denominator is %d\n",
533 s->avctx->time_base.num, s->avctx->time_base.den, (1<<16)-1);
536 s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1;
538 switch(avctx->codec->id) {
539 case CODEC_ID_MPEG1VIDEO:
540 s->out_format = FMT_MPEG1;
541 s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
542 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
544 case CODEC_ID_MPEG2VIDEO:
545 s->out_format = FMT_MPEG1;
546 s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
547 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
552 s->out_format = FMT_MJPEG;
553 s->intra_only = 1; /* force intra only for jpeg */
554 if(avctx->codec->id == CODEC_ID_LJPEG && avctx->pix_fmt == PIX_FMT_BGRA){
555 s->mjpeg_vsample[0] = s->mjpeg_hsample[0] =
556 s->mjpeg_vsample[1] = s->mjpeg_hsample[1] =
557 s->mjpeg_vsample[2] = s->mjpeg_hsample[2] = 1;
559 s->mjpeg_vsample[0] = 2;
560 s->mjpeg_vsample[1] = 2>>chroma_v_shift;
561 s->mjpeg_vsample[2] = 2>>chroma_v_shift;
562 s->mjpeg_hsample[0] = 2;
563 s->mjpeg_hsample[1] = 2>>chroma_h_shift;
564 s->mjpeg_hsample[2] = 2>>chroma_h_shift;
566 if (!(CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER)
567 || ff_mjpeg_encode_init(s) < 0)
573 if (!CONFIG_H261_ENCODER) return -1;
574 if (ff_h261_get_picture_format(s->width, s->height) < 0) {
575 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);
578 s->out_format = FMT_H261;
583 if (!CONFIG_H263_ENCODER) return -1;
584 if (ff_match_2uint16(h263_format, FF_ARRAY_ELEMS(h263_format), s->width, s->height) == 8) {
585 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);
588 s->out_format = FMT_H263;
589 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
594 s->out_format = FMT_H263;
597 s->umvplus = (avctx->flags & CODEC_FLAG_H263P_UMV) ? 1:0;
598 s->h263_aic= (avctx->flags & CODEC_FLAG_AC_PRED) ? 1:0;
599 s->modified_quant= s->h263_aic;
600 s->alt_inter_vlc= (avctx->flags & CODEC_FLAG_H263P_AIV) ? 1:0;
601 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
602 s->loop_filter= (avctx->flags & CODEC_FLAG_LOOP_FILTER) ? 1:0;
603 s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
604 s->h263_slice_structured= (s->flags & CODEC_FLAG_H263P_SLICE_STRUCT) ? 1:0;
607 /* These are just to be sure */
612 s->out_format = FMT_H263;
613 s->h263_flv = 2; /* format = 1; 11-bit codes */
614 s->unrestricted_mv = 1;
615 s->rtp_mode=0; /* don't allow GOB */
620 s->out_format = FMT_H263;
625 s->out_format = FMT_H263;
632 s->unrestricted_mv= 0;
635 s->out_format = FMT_H263;
637 s->unrestricted_mv = 1;
638 s->low_delay= s->max_b_frames ? 0 : 1;
639 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
641 case CODEC_ID_MSMPEG4V1:
642 s->out_format = FMT_H263;
645 s->unrestricted_mv = 1;
646 s->msmpeg4_version= 1;
650 case CODEC_ID_MSMPEG4V2:
651 s->out_format = FMT_H263;
654 s->unrestricted_mv = 1;
655 s->msmpeg4_version= 2;
659 case CODEC_ID_MSMPEG4V3:
660 s->out_format = FMT_H263;
663 s->unrestricted_mv = 1;
664 s->msmpeg4_version= 3;
665 s->flipflop_rounding=1;
670 s->out_format = FMT_H263;
673 s->unrestricted_mv = 1;
674 s->msmpeg4_version= 4;
675 s->flipflop_rounding=1;
680 s->out_format = FMT_H263;
683 s->unrestricted_mv = 1;
684 s->msmpeg4_version= 5;
685 s->flipflop_rounding=1;
693 avctx->has_b_frames= !s->low_delay;
697 s->progressive_frame=
698 s->progressive_sequence= !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN));
701 if (MPV_common_init(s) < 0)
705 s->dct_quantize = dct_quantize_c;
707 s->denoise_dct = denoise_dct_c;
708 s->fast_dct_quantize = s->dct_quantize;
710 s->dct_quantize = dct_quantize_trellis_c;
712 if((CONFIG_H263P_ENCODER || CONFIG_RV20_ENCODER) && s->modified_quant)
713 s->chroma_qscale_table= ff_h263_chroma_qscale_table;
715 s->quant_precision=5;
717 ff_set_cmp(&s->dsp, s->dsp.ildct_cmp, s->avctx->ildct_cmp);
718 ff_set_cmp(&s->dsp, s->dsp.frame_skip_cmp, s->avctx->frame_skip_cmp);
720 if (CONFIG_H261_ENCODER && s->out_format == FMT_H261)
721 ff_h261_encode_init(s);
722 if (CONFIG_H263_ENCODER && s->out_format == FMT_H263)
724 if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version)
725 ff_msmpeg4_encode_init(s);
726 if ((CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
727 && s->out_format == FMT_MPEG1)
728 ff_mpeg1_encode_init(s);
732 int j= s->dsp.idct_permutation[i];
733 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){
734 s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
735 s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
736 }else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){
738 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
741 s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
742 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
744 if(s->avctx->intra_matrix)
745 s->intra_matrix[j] = s->avctx->intra_matrix[i];
746 if(s->avctx->inter_matrix)
747 s->inter_matrix[j] = s->avctx->inter_matrix[i];
750 /* precompute matrix */
751 /* for mjpeg, we do include qscale in the matrix */
752 if (s->out_format != FMT_MJPEG) {
753 ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
754 s->intra_matrix, s->intra_quant_bias, avctx->qmin, 31, 1);
755 ff_convert_matrix(&s->dsp, s->q_inter_matrix, s->q_inter_matrix16,
756 s->inter_matrix, s->inter_quant_bias, avctx->qmin, 31, 0);
759 if(ff_rate_control_init(s) < 0)
765 av_cold int MPV_encode_end(AVCodecContext *avctx)
767 MpegEncContext *s = avctx->priv_data;
769 ff_rate_control_uninit(s);
772 if ((CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER) && s->out_format == FMT_MJPEG)
773 ff_mjpeg_encode_close(s);
775 av_freep(&avctx->extradata);
780 static int get_sae(uint8_t *src, int ref, int stride){
786 acc+= FFABS(src[x+y*stride] - ref);
793 static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride){
800 for(y=0; y<h; y+=16){
801 for(x=0; x<w; x+=16){
802 int offset= x + y*stride;
803 int sad = s->dsp.sad[0](NULL, src + offset, ref + offset, stride, 16);
804 int mean= (s->dsp.pix_sum(src + offset, stride) + 128)>>8;
805 int sae = get_sae(src + offset, mean, stride);
807 acc+= sae + 500 < sad;
814 static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
818 const int encoding_delay= s->max_b_frames;
823 pic_arg->display_picture_number= s->input_picture_number++;
825 if(pts != AV_NOPTS_VALUE){
826 if(s->user_specified_pts != AV_NOPTS_VALUE){
828 int64_t last= s->user_specified_pts;
831 av_log(s->avctx, AV_LOG_ERROR, "Error, Invalid timestamp=%"PRId64", last=%"PRId64"\n", pts, s->user_specified_pts);
835 s->user_specified_pts= pts;
837 if(s->user_specified_pts != AV_NOPTS_VALUE){
838 s->user_specified_pts=
839 pts= s->user_specified_pts + 1;
840 av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%"PRId64")\n", pts);
842 pts= pic_arg->display_picture_number;
848 if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0;
849 if(pic_arg->linesize[0] != s->linesize) direct=0;
850 if(pic_arg->linesize[1] != s->uvlinesize) direct=0;
851 if(pic_arg->linesize[2] != s->uvlinesize) direct=0;
853 // av_log(AV_LOG_DEBUG, "%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize);
856 i= ff_find_unused_picture(s, 1);
858 pic= (AVFrame*)&s->picture[i];
862 pic->data[i]= pic_arg->data[i];
863 pic->linesize[i]= pic_arg->linesize[i];
865 if(ff_alloc_picture(s, (Picture*)pic, 1) < 0){
869 i= ff_find_unused_picture(s, 0);
871 pic= (AVFrame*)&s->picture[i];
874 if(ff_alloc_picture(s, (Picture*)pic, 0) < 0){
878 if( pic->data[0] + INPLACE_OFFSET == pic_arg->data[0]
879 && pic->data[1] + INPLACE_OFFSET == pic_arg->data[1]
880 && pic->data[2] + INPLACE_OFFSET == pic_arg->data[2]){
883 int h_chroma_shift, v_chroma_shift;
884 avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
887 int src_stride= pic_arg->linesize[i];
888 int dst_stride= i ? s->uvlinesize : s->linesize;
889 int h_shift= i ? h_chroma_shift : 0;
890 int v_shift= i ? v_chroma_shift : 0;
891 int w= s->width >>h_shift;
892 int h= s->height>>v_shift;
893 uint8_t *src= pic_arg->data[i];
894 uint8_t *dst= pic->data[i];
896 if(!s->avctx->rc_buffer_size)
897 dst +=INPLACE_OFFSET;
899 if(src_stride==dst_stride)
900 memcpy(dst, src, src_stride*h);
911 copy_picture_attributes(s, pic, pic_arg);
912 pic->pts= pts; //we set this here to avoid modifiying pic_arg
915 /* shift buffer entries */
916 for(i=1; i<MAX_PICTURE_COUNT /*s->encoding_delay+1*/; i++)
917 s->input_picture[i-1]= s->input_picture[i];
919 s->input_picture[encoding_delay]= (Picture*)pic;
924 static int skip_check(MpegEncContext *s, Picture *p, Picture *ref){
929 for(plane=0; plane<3; plane++){
930 const int stride= p->linesize[plane];
931 const int bw= plane ? 1 : 2;
932 for(y=0; y<s->mb_height*bw; y++){
933 for(x=0; x<s->mb_width*bw; x++){
934 int off= p->type == FF_BUFFER_TYPE_SHARED ? 0: 16;
935 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);
937 switch(s->avctx->frame_skip_exp){
938 case 0: score= FFMAX(score, v); break;
939 case 1: score+= FFABS(v);break;
940 case 2: score+= v*v;break;
941 case 3: score64+= FFABS(v*v*(int64_t)v);break;
942 case 4: score64+= v*v*(int64_t)(v*v);break;
948 if(score) score64= score;
950 if(score64 < s->avctx->frame_skip_threshold)
952 if(score64 < ((s->avctx->frame_skip_factor * (int64_t)s->lambda)>>8))
957 static int estimate_best_b_count(MpegEncContext *s){
958 AVCodec *codec= avcodec_find_encoder(s->avctx->codec_id);
959 AVCodecContext *c= avcodec_alloc_context();
960 AVFrame input[FF_MAX_B_FRAMES+2];
961 const int scale= s->avctx->brd_scale;
962 int i, j, out_size, p_lambda, b_lambda, lambda2;
963 int outbuf_size= s->width * s->height; //FIXME
964 uint8_t *outbuf= av_malloc(outbuf_size);
965 int64_t best_rd= INT64_MAX;
966 int best_b_count= -1;
968 assert(scale>=0 && scale <=3);
971 p_lambda= s->last_lambda_for[FF_P_TYPE]; //s->next_picture_ptr->quality;
972 b_lambda= s->last_lambda_for[FF_B_TYPE]; //p_lambda *FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset;
973 if(!b_lambda) b_lambda= p_lambda; //FIXME we should do this somewhere else
974 lambda2= (b_lambda*b_lambda + (1<<FF_LAMBDA_SHIFT)/2 ) >> FF_LAMBDA_SHIFT;
976 c->width = s->width >> scale;
977 c->height= s->height>> scale;
978 c->flags= CODEC_FLAG_QSCALE | CODEC_FLAG_PSNR | CODEC_FLAG_INPUT_PRESERVED /*| CODEC_FLAG_EMU_EDGE*/;
979 c->flags|= s->avctx->flags & CODEC_FLAG_QPEL;
980 c->mb_decision= s->avctx->mb_decision;
981 c->me_cmp= s->avctx->me_cmp;
982 c->mb_cmp= s->avctx->mb_cmp;
983 c->me_sub_cmp= s->avctx->me_sub_cmp;
984 c->pix_fmt = PIX_FMT_YUV420P;
985 c->time_base= s->avctx->time_base;
986 c->max_b_frames= s->max_b_frames;
988 if (avcodec_open(c, codec) < 0)
991 for(i=0; i<s->max_b_frames+2; i++){
992 int ysize= c->width*c->height;
993 int csize= (c->width/2)*(c->height/2);
994 Picture pre_input, *pre_input_ptr= i ? s->input_picture[i-1] : s->next_picture_ptr;
996 avcodec_get_frame_defaults(&input[i]);
997 input[i].data[0]= av_malloc(ysize + 2*csize);
998 input[i].data[1]= input[i].data[0] + ysize;
999 input[i].data[2]= input[i].data[1] + csize;
1000 input[i].linesize[0]= c->width;
1001 input[i].linesize[1]=
1002 input[i].linesize[2]= c->width/2;
1004 if(pre_input_ptr && (!i || s->input_picture[i-1])) {
1005 pre_input= *pre_input_ptr;
1007 if(pre_input.type != FF_BUFFER_TYPE_SHARED && i) {
1008 pre_input.data[0]+=INPLACE_OFFSET;
1009 pre_input.data[1]+=INPLACE_OFFSET;
1010 pre_input.data[2]+=INPLACE_OFFSET;
1013 s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0], pre_input.data[0], pre_input.linesize[0], c->width, c->height);
1014 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);
1015 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);
1019 for(j=0; j<s->max_b_frames+1; j++){
1022 if(!s->input_picture[j])
1025 c->error[0]= c->error[1]= c->error[2]= 0;
1027 input[0].pict_type= FF_I_TYPE;
1028 input[0].quality= 1 * FF_QP2LAMBDA;
1029 out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[0]);
1030 // rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT;
1032 for(i=0; i<s->max_b_frames+1; i++){
1033 int is_p= i % (j+1) == j || i==s->max_b_frames;
1035 input[i+1].pict_type= is_p ? FF_P_TYPE : FF_B_TYPE;
1036 input[i+1].quality= is_p ? p_lambda : b_lambda;
1037 out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[i+1]);
1038 rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1041 /* get the delayed frames */
1043 out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);
1044 rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1047 rd += c->error[0] + c->error[1] + c->error[2];
1059 for(i=0; i<s->max_b_frames+2; i++){
1060 av_freep(&input[i].data[0]);
1063 return best_b_count;
1066 static int select_input_picture(MpegEncContext *s){
1069 for(i=1; i<MAX_PICTURE_COUNT; i++)
1070 s->reordered_input_picture[i-1]= s->reordered_input_picture[i];
1071 s->reordered_input_picture[MAX_PICTURE_COUNT-1]= NULL;
1073 /* set next picture type & ordering */
1074 if(s->reordered_input_picture[0]==NULL && s->input_picture[0]){
1075 if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture_ptr==NULL || s->intra_only){
1076 s->reordered_input_picture[0]= s->input_picture[0];
1077 s->reordered_input_picture[0]->pict_type= FF_I_TYPE;
1078 s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1082 if(s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor){
1083 if(s->picture_in_gop_number < s->gop_size && skip_check(s, s->input_picture[0], s->next_picture_ptr)){
1084 //FIXME check that te gop check above is +-1 correct
1085 //av_log(NULL, AV_LOG_DEBUG, "skip %p %"PRId64"\n", s->input_picture[0]->data[0], s->input_picture[0]->pts);
1087 if(s->input_picture[0]->type == FF_BUFFER_TYPE_SHARED){
1089 s->input_picture[0]->data[i]= NULL;
1090 s->input_picture[0]->type= 0;
1092 assert( s->input_picture[0]->type==FF_BUFFER_TYPE_USER
1093 || s->input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1095 s->avctx->release_buffer(s->avctx, (AVFrame*)s->input_picture[0]);
1099 ff_vbv_update(s, 0);
1105 if(s->flags&CODEC_FLAG_PASS2){
1106 for(i=0; i<s->max_b_frames+1; i++){
1107 int pict_num= s->input_picture[0]->display_picture_number + i;
1109 if(pict_num >= s->rc_context.num_entries)
1111 if(!s->input_picture[i]){
1112 s->rc_context.entry[pict_num-1].new_pict_type = FF_P_TYPE;
1116 s->input_picture[i]->pict_type=
1117 s->rc_context.entry[pict_num].new_pict_type;
1121 if(s->avctx->b_frame_strategy==0){
1122 b_frames= s->max_b_frames;
1123 while(b_frames && !s->input_picture[b_frames]) b_frames--;
1124 }else if(s->avctx->b_frame_strategy==1){
1125 for(i=1; i<s->max_b_frames+1; i++){
1126 if(s->input_picture[i] && s->input_picture[i]->b_frame_score==0){
1127 s->input_picture[i]->b_frame_score=
1128 get_intra_count(s, s->input_picture[i ]->data[0],
1129 s->input_picture[i-1]->data[0], s->linesize) + 1;
1132 for(i=0; i<s->max_b_frames+1; i++){
1133 if(s->input_picture[i]==NULL || s->input_picture[i]->b_frame_score - 1 > s->mb_num/s->avctx->b_sensitivity) break;
1136 b_frames= FFMAX(0, i-1);
1139 for(i=0; i<b_frames+1; i++){
1140 s->input_picture[i]->b_frame_score=0;
1142 }else if(s->avctx->b_frame_strategy==2){
1143 b_frames= estimate_best_b_count(s);
1145 av_log(s->avctx, AV_LOG_ERROR, "illegal b frame strategy\n");
1150 //static int b_count=0;
1151 //b_count+= b_frames;
1152 //av_log(s->avctx, AV_LOG_DEBUG, "b_frames: %d\n", b_count);
1154 for(i= b_frames - 1; i>=0; i--){
1155 int type= s->input_picture[i]->pict_type;
1156 if(type && type != FF_B_TYPE)
1159 if(s->input_picture[b_frames]->pict_type == FF_B_TYPE && b_frames == s->max_b_frames){
1160 av_log(s->avctx, AV_LOG_ERROR, "warning, too many b frames in a row\n");
1163 if(s->picture_in_gop_number + b_frames >= s->gop_size){
1164 if((s->flags2 & CODEC_FLAG2_STRICT_GOP) && s->gop_size > s->picture_in_gop_number){
1165 b_frames= s->gop_size - s->picture_in_gop_number - 1;
1167 if(s->flags & CODEC_FLAG_CLOSED_GOP)
1169 s->input_picture[b_frames]->pict_type= FF_I_TYPE;
1173 if( (s->flags & CODEC_FLAG_CLOSED_GOP)
1175 && s->input_picture[b_frames]->pict_type== FF_I_TYPE)
1178 s->reordered_input_picture[0]= s->input_picture[b_frames];
1179 if(s->reordered_input_picture[0]->pict_type != FF_I_TYPE)
1180 s->reordered_input_picture[0]->pict_type= FF_P_TYPE;
1181 s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1182 for(i=0; i<b_frames; i++){
1183 s->reordered_input_picture[i+1]= s->input_picture[i];
1184 s->reordered_input_picture[i+1]->pict_type= FF_B_TYPE;
1185 s->reordered_input_picture[i+1]->coded_picture_number= s->coded_picture_number++;
1190 if(s->reordered_input_picture[0]){
1191 s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=FF_B_TYPE ? 3 : 0;
1193 ff_copy_picture(&s->new_picture, s->reordered_input_picture[0]);
1195 if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_SHARED || s->avctx->rc_buffer_size){
1196 // input is a shared pix, so we can't modifiy it -> alloc a new one & ensure that the shared one is reuseable
1198 int i= ff_find_unused_picture(s, 0);
1199 Picture *pic= &s->picture[i];
1201 pic->reference = s->reordered_input_picture[0]->reference;
1202 if(ff_alloc_picture(s, pic, 0) < 0){
1206 /* mark us unused / free shared pic */
1207 if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_INTERNAL)
1208 s->avctx->release_buffer(s->avctx, (AVFrame*)s->reordered_input_picture[0]);
1210 s->reordered_input_picture[0]->data[i]= NULL;
1211 s->reordered_input_picture[0]->type= 0;
1213 copy_picture_attributes(s, (AVFrame*)pic, (AVFrame*)s->reordered_input_picture[0]);
1215 s->current_picture_ptr= pic;
1217 // input is not a shared pix -> reuse buffer for current_pix
1219 assert( s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
1220 || s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1222 s->current_picture_ptr= s->reordered_input_picture[0];
1224 s->new_picture.data[i]+= INPLACE_OFFSET;
1227 ff_copy_picture(&s->current_picture, s->current_picture_ptr);
1229 s->picture_number= s->new_picture.display_picture_number;
1230 //printf("dpn:%d\n", s->picture_number);
1232 memset(&s->new_picture, 0, sizeof(Picture));
1237 int MPV_encode_picture(AVCodecContext *avctx,
1238 unsigned char *buf, int buf_size, void *data)
1240 MpegEncContext *s = avctx->priv_data;
1241 AVFrame *pic_arg = data;
1242 int i, stuffing_count, context_count = avctx->active_thread_type&FF_THREAD_SLICE ? avctx->thread_count : 1;
1244 for(i=0; i<context_count; i++){
1245 int start_y= s->thread_context[i]->start_mb_y;
1246 int end_y= s->thread_context[i]-> end_mb_y;
1247 int h= s->mb_height;
1248 uint8_t *start= buf + (size_t)(((int64_t) buf_size)*start_y/h);
1249 uint8_t *end = buf + (size_t)(((int64_t) buf_size)* end_y/h);
1251 init_put_bits(&s->thread_context[i]->pb, start, end - start);
1254 s->picture_in_gop_number++;
1256 if(load_input_picture(s, pic_arg) < 0)
1259 if(select_input_picture(s) < 0){
1264 if(s->new_picture.data[0]){
1265 s->pict_type= s->new_picture.pict_type;
1267 //printf("qs:%f %f %d\n", s->new_picture.quality, s->current_picture.quality, s->qscale);
1268 MPV_frame_start(s, avctx);
1270 if (encode_picture(s, s->picture_number) < 0)
1273 avctx->header_bits = s->header_bits;
1274 avctx->mv_bits = s->mv_bits;
1275 avctx->misc_bits = s->misc_bits;
1276 avctx->i_tex_bits = s->i_tex_bits;
1277 avctx->p_tex_bits = s->p_tex_bits;
1278 avctx->i_count = s->i_count;
1279 avctx->p_count = s->mb_num - s->i_count - s->skip_count; //FIXME f/b_count in avctx
1280 avctx->skip_count = s->skip_count;
1284 if (CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG)
1285 ff_mjpeg_encode_picture_trailer(s);
1287 if(avctx->rc_buffer_size){
1288 RateControlContext *rcc= &s->rc_context;
1289 int max_size= rcc->buffer_index * avctx->rc_max_available_vbv_use;
1291 if(put_bits_count(&s->pb) > max_size && s->lambda < s->avctx->lmax){
1292 s->next_lambda= FFMAX(s->lambda+1, s->lambda*(s->qscale+1) / s->qscale);
1293 if(s->adaptive_quant){
1295 for(i=0; i<s->mb_height*s->mb_stride; i++)
1296 s->lambda_table[i]= FFMAX(s->lambda_table[i]+1, s->lambda_table[i]*(s->qscale+1) / s->qscale);
1298 s->mb_skipped = 0; //done in MPV_frame_start()
1299 if(s->pict_type==FF_P_TYPE){ //done in encode_picture() so we must undo it
1300 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
1301 s->no_rounding ^= 1;
1303 if(s->pict_type!=FF_B_TYPE){
1304 s->time_base= s->last_time_base;
1305 s->last_non_b_time= s->time - s->pp_time;
1307 // av_log(NULL, AV_LOG_ERROR, "R:%d ", s->next_lambda);
1308 for(i=0; i<context_count; i++){
1309 PutBitContext *pb= &s->thread_context[i]->pb;
1310 init_put_bits(pb, pb->buf, pb->buf_end - pb->buf);
1315 assert(s->avctx->rc_max_rate);
1318 if(s->flags&CODEC_FLAG_PASS1)
1319 ff_write_pass1_stats(s);
1322 s->current_picture_ptr->error[i]= s->current_picture.error[i];
1323 avctx->error[i] += s->current_picture_ptr->error[i];
1326 if(s->flags&CODEC_FLAG_PASS1)
1327 assert(avctx->header_bits + avctx->mv_bits + avctx->misc_bits + avctx->i_tex_bits + avctx->p_tex_bits == put_bits_count(&s->pb));
1328 flush_put_bits(&s->pb);
1329 s->frame_bits = put_bits_count(&s->pb);
1331 stuffing_count= ff_vbv_update(s, s->frame_bits);
1333 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < stuffing_count + 50){
1334 av_log(s->avctx, AV_LOG_ERROR, "stuffing too large\n");
1338 switch(s->codec_id){
1339 case CODEC_ID_MPEG1VIDEO:
1340 case CODEC_ID_MPEG2VIDEO:
1341 while(stuffing_count--){
1342 put_bits(&s->pb, 8, 0);
1345 case CODEC_ID_MPEG4:
1346 put_bits(&s->pb, 16, 0);
1347 put_bits(&s->pb, 16, 0x1C3);
1348 stuffing_count -= 4;
1349 while(stuffing_count--){
1350 put_bits(&s->pb, 8, 0xFF);
1354 av_log(s->avctx, AV_LOG_ERROR, "vbv buffer overflow\n");
1356 flush_put_bits(&s->pb);
1357 s->frame_bits = put_bits_count(&s->pb);
1360 /* update mpeg1/2 vbv_delay for CBR */
1361 if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && s->out_format == FMT_MPEG1
1362 && 90000LL * (avctx->rc_buffer_size-1) <= s->avctx->rc_max_rate*0xFFFFLL){
1363 int vbv_delay, min_delay;
1364 double inbits = s->avctx->rc_max_rate*av_q2d(s->avctx->time_base);
1365 int minbits= s->frame_bits - 8*(s->vbv_delay_ptr - s->pb.buf - 1);
1366 double bits = s->rc_context.buffer_index + minbits - inbits;
1369 av_log(s->avctx, AV_LOG_ERROR, "Internal error, negative bits\n");
1371 assert(s->repeat_first_field==0);
1373 vbv_delay= bits * 90000 / s->avctx->rc_max_rate;
1374 min_delay= (minbits * 90000LL + s->avctx->rc_max_rate - 1)/ s->avctx->rc_max_rate;
1376 vbv_delay= FFMAX(vbv_delay, min_delay);
1378 assert(vbv_delay < 0xFFFF);
1380 s->vbv_delay_ptr[0] &= 0xF8;
1381 s->vbv_delay_ptr[0] |= vbv_delay>>13;
1382 s->vbv_delay_ptr[1] = vbv_delay>>5;
1383 s->vbv_delay_ptr[2] &= 0x07;
1384 s->vbv_delay_ptr[2] |= vbv_delay<<3;
1385 avctx->vbv_delay = vbv_delay*300;
1387 s->total_bits += s->frame_bits;
1388 avctx->frame_bits = s->frame_bits;
1390 assert((put_bits_ptr(&s->pb) == s->pb.buf));
1393 assert((s->frame_bits&7)==0);
1395 return s->frame_bits/8;
1398 static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold)
1400 static const char tab[64]=
1412 DCTELEM *block= s->block[n];
1413 const int last_index= s->block_last_index[n];
1418 threshold= -threshold;
1422 /* Are all we could set to zero already zero? */
1423 if(last_index<=skip_dc - 1) return;
1425 for(i=0; i<=last_index; i++){
1426 const int j = s->intra_scantable.permutated[i];
1427 const int level = FFABS(block[j]);
1429 if(skip_dc && i==0) continue;
1438 if(score >= threshold) return;
1439 for(i=skip_dc; i<=last_index; i++){
1440 const int j = s->intra_scantable.permutated[i];
1443 if(block[0]) s->block_last_index[n]= 0;
1444 else s->block_last_index[n]= -1;
1447 static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1450 const int maxlevel= s->max_qcoeff;
1451 const int minlevel= s->min_qcoeff;
1455 i=1; //skip clipping of intra dc
1459 for(;i<=last_index; i++){
1460 const int j= s->intra_scantable.permutated[i];
1461 int level = block[j];
1463 if (level>maxlevel){
1466 }else if(level<minlevel){
1474 if(overflow && s->avctx->mb_decision == FF_MB_DECISION_SIMPLE)
1475 av_log(s->avctx, AV_LOG_INFO, "warning, clipping %d dct coefficients to %d..%d\n", overflow, minlevel, maxlevel);
1478 static void get_visual_weight(int16_t *weight, uint8_t *ptr, int stride){
1488 for(y2= FFMAX(y-1, 0); y2 < FFMIN(8, y+2); y2++){
1489 for(x2= FFMAX(x-1, 0); x2 < FFMIN(8, x+2); x2++){
1490 int v= ptr[x2 + y2*stride];
1496 weight[x + 8*y]= (36*ff_sqrt(count*sqr - sum*sum)) / count;
1501 static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count)
1503 int16_t weight[8][64];
1504 DCTELEM orig[8][64];
1505 const int mb_x= s->mb_x;
1506 const int mb_y= s->mb_y;
1509 int dct_offset = s->linesize*8; //default for progressive frames
1510 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1513 for(i=0; i<mb_block_count; i++) skip_dct[i]=s->skipdct;
1515 if(s->adaptive_quant){
1516 const int last_qp= s->qscale;
1517 const int mb_xy= mb_x + mb_y*s->mb_stride;
1519 s->lambda= s->lambda_table[mb_xy];
1522 if(!(s->flags&CODEC_FLAG_QP_RD)){
1523 s->qscale= s->current_picture_ptr->qscale_table[mb_xy];
1524 s->dquant= s->qscale - last_qp;
1526 if(s->out_format==FMT_H263){
1527 s->dquant= av_clip(s->dquant, -2, 2);
1529 if(s->codec_id==CODEC_ID_MPEG4){
1531 if(s->pict_type == FF_B_TYPE){
1532 if(s->dquant&1 || s->mv_dir&MV_DIRECT)
1535 if(s->mv_type==MV_TYPE_8X8)
1541 ff_set_qscale(s, last_qp + s->dquant);
1542 }else if(s->flags&CODEC_FLAG_QP_RD)
1543 ff_set_qscale(s, s->qscale + s->dquant);
1545 wrap_y = s->linesize;
1546 wrap_c = s->uvlinesize;
1547 ptr_y = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
1548 ptr_cb = s->new_picture.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1549 ptr_cr = s->new_picture.data[2] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1551 if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
1552 uint8_t *ebuf= s->edge_emu_buffer + 32;
1553 s->dsp.emulated_edge_mc(ebuf , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width , s->height);
1555 s->dsp.emulated_edge_mc(ebuf+18*wrap_y , ptr_cb, wrap_c, 8, mb_block_height, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
1556 ptr_cb= ebuf+18*wrap_y;
1557 s->dsp.emulated_edge_mc(ebuf+18*wrap_y+8, ptr_cr, wrap_c, 8, mb_block_height, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
1558 ptr_cr= ebuf+18*wrap_y+8;
1562 if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1563 int progressive_score, interlaced_score;
1565 s->interlaced_dct=0;
1566 progressive_score= s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y, 8)
1567 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y*8, NULL, wrap_y, 8) - 400;
1569 if(progressive_score > 0){
1570 interlaced_score = s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y*2, 8)
1571 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y , NULL, wrap_y*2, 8);
1572 if(progressive_score > interlaced_score){
1573 s->interlaced_dct=1;
1577 if (s->chroma_format == CHROMA_422)
1583 s->dsp.get_pixels(s->block[0], ptr_y , wrap_y);
1584 s->dsp.get_pixels(s->block[1], ptr_y + 8, wrap_y);
1585 s->dsp.get_pixels(s->block[2], ptr_y + dct_offset , wrap_y);
1586 s->dsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y);
1588 if(s->flags&CODEC_FLAG_GRAY){
1592 s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c);
1593 s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c);
1594 if(!s->chroma_y_shift){ /* 422 */
1595 s->dsp.get_pixels(s->block[6], ptr_cb + (dct_offset>>1), wrap_c);
1596 s->dsp.get_pixels(s->block[7], ptr_cr + (dct_offset>>1), wrap_c);
1600 op_pixels_func (*op_pix)[4];
1601 qpel_mc_func (*op_qpix)[16];
1602 uint8_t *dest_y, *dest_cb, *dest_cr;
1604 dest_y = s->dest[0];
1605 dest_cb = s->dest[1];
1606 dest_cr = s->dest[2];
1608 if ((!s->no_rounding) || s->pict_type==FF_B_TYPE){
1609 op_pix = s->dsp.put_pixels_tab;
1610 op_qpix= s->dsp.put_qpel_pixels_tab;
1612 op_pix = s->dsp.put_no_rnd_pixels_tab;
1613 op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab;
1616 if (s->mv_dir & MV_DIR_FORWARD) {
1617 MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix);
1618 op_pix = s->dsp.avg_pixels_tab;
1619 op_qpix= s->dsp.avg_qpel_pixels_tab;
1621 if (s->mv_dir & MV_DIR_BACKWARD) {
1622 MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix);
1625 if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1626 int progressive_score, interlaced_score;
1628 s->interlaced_dct=0;
1629 progressive_score= s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y, 8)
1630 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y*8, ptr_y + wrap_y*8, wrap_y, 8) - 400;
1632 if(s->avctx->ildct_cmp == FF_CMP_VSSE) progressive_score -= 400;
1634 if(progressive_score>0){
1635 interlaced_score = s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y*2, 8)
1636 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y , ptr_y + wrap_y , wrap_y*2, 8);
1638 if(progressive_score > interlaced_score){
1639 s->interlaced_dct=1;
1643 if (s->chroma_format == CHROMA_422)
1649 s->dsp.diff_pixels(s->block[0], ptr_y , dest_y , wrap_y);
1650 s->dsp.diff_pixels(s->block[1], ptr_y + 8, dest_y + 8, wrap_y);
1651 s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset , dest_y + dct_offset , wrap_y);
1652 s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y);
1654 if(s->flags&CODEC_FLAG_GRAY){
1658 s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
1659 s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
1660 if(!s->chroma_y_shift){ /* 422 */
1661 s->dsp.diff_pixels(s->block[6], ptr_cb + (dct_offset>>1), dest_cb + (dct_offset>>1), wrap_c);
1662 s->dsp.diff_pixels(s->block[7], ptr_cr + (dct_offset>>1), dest_cr + (dct_offset>>1), wrap_c);
1665 /* pre quantization */
1666 if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){
1668 if(s->dsp.sad[1](NULL, ptr_y , dest_y , wrap_y, 8) < 20*s->qscale) skip_dct[0]= 1;
1669 if(s->dsp.sad[1](NULL, ptr_y + 8, dest_y + 8, wrap_y, 8) < 20*s->qscale) skip_dct[1]= 1;
1670 if(s->dsp.sad[1](NULL, ptr_y +dct_offset , dest_y +dct_offset , wrap_y, 8) < 20*s->qscale) skip_dct[2]= 1;
1671 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;
1672 if(s->dsp.sad[1](NULL, ptr_cb , dest_cb , wrap_c, 8) < 20*s->qscale) skip_dct[4]= 1;
1673 if(s->dsp.sad[1](NULL, ptr_cr , dest_cr , wrap_c, 8) < 20*s->qscale) skip_dct[5]= 1;
1674 if(!s->chroma_y_shift){ /* 422 */
1675 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;
1676 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;
1681 if(s->avctx->quantizer_noise_shaping){
1682 if(!skip_dct[0]) get_visual_weight(weight[0], ptr_y , wrap_y);
1683 if(!skip_dct[1]) get_visual_weight(weight[1], ptr_y + 8, wrap_y);
1684 if(!skip_dct[2]) get_visual_weight(weight[2], ptr_y + dct_offset , wrap_y);
1685 if(!skip_dct[3]) get_visual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y);
1686 if(!skip_dct[4]) get_visual_weight(weight[4], ptr_cb , wrap_c);
1687 if(!skip_dct[5]) get_visual_weight(weight[5], ptr_cr , wrap_c);
1688 if(!s->chroma_y_shift){ /* 422 */
1689 if(!skip_dct[6]) get_visual_weight(weight[6], ptr_cb + (dct_offset>>1), wrap_c);
1690 if(!skip_dct[7]) get_visual_weight(weight[7], ptr_cr + (dct_offset>>1), wrap_c);
1692 memcpy(orig[0], s->block[0], sizeof(DCTELEM)*64*mb_block_count);
1695 /* DCT & quantize */
1696 assert(s->out_format!=FMT_MJPEG || s->qscale==8);
1698 for(i=0;i<mb_block_count;i++) {
1701 s->block_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow);
1702 // FIXME we could decide to change to quantizer instead of clipping
1703 // JS: I don't think that would be a good idea it could lower quality instead
1704 // of improve it. Just INTRADC clipping deserves changes in quantizer
1705 if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1707 s->block_last_index[i]= -1;
1709 if(s->avctx->quantizer_noise_shaping){
1710 for(i=0;i<mb_block_count;i++) {
1712 s->block_last_index[i] = dct_quantize_refine(s, s->block[i], weight[i], orig[i], i, s->qscale);
1717 if(s->luma_elim_threshold && !s->mb_intra)
1719 dct_single_coeff_elimination(s, i, s->luma_elim_threshold);
1720 if(s->chroma_elim_threshold && !s->mb_intra)
1721 for(i=4; i<mb_block_count; i++)
1722 dct_single_coeff_elimination(s, i, s->chroma_elim_threshold);
1724 if(s->flags & CODEC_FLAG_CBP_RD){
1725 for(i=0;i<mb_block_count;i++) {
1726 if(s->block_last_index[i] == -1)
1727 s->coded_score[i]= INT_MAX/256;
1732 if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
1733 s->block_last_index[4]=
1734 s->block_last_index[5]= 0;
1736 s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale;
1739 //non c quantize code returns incorrect block_last_index FIXME
1740 if(s->alternate_scan && s->dct_quantize != dct_quantize_c){
1741 for(i=0; i<mb_block_count; i++){
1743 if(s->block_last_index[i]>0){
1744 for(j=63; j>0; j--){
1745 if(s->block[i][ s->intra_scantable.permutated[j] ]) break;
1747 s->block_last_index[i]= j;
1752 /* huffman encode */
1753 switch(s->codec_id){ //FIXME funct ptr could be slightly faster
1754 case CODEC_ID_MPEG1VIDEO:
1755 case CODEC_ID_MPEG2VIDEO:
1756 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
1757 mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1759 case CODEC_ID_MPEG4:
1760 if (CONFIG_MPEG4_ENCODER)
1761 mpeg4_encode_mb(s, s->block, motion_x, motion_y);
1763 case CODEC_ID_MSMPEG4V2:
1764 case CODEC_ID_MSMPEG4V3:
1766 if (CONFIG_MSMPEG4_ENCODER)
1767 msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1770 if (CONFIG_WMV2_ENCODER)
1771 ff_wmv2_encode_mb(s, s->block, motion_x, motion_y);
1774 if (CONFIG_H261_ENCODER)
1775 ff_h261_encode_mb(s, s->block, motion_x, motion_y);
1778 case CODEC_ID_H263P:
1782 if (CONFIG_H263_ENCODER)
1783 h263_encode_mb(s, s->block, motion_x, motion_y);
1785 case CODEC_ID_MJPEG:
1786 if (CONFIG_MJPEG_ENCODER)
1787 ff_mjpeg_encode_mb(s, s->block);
1794 static av_always_inline void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
1796 if (s->chroma_format == CHROMA_420) encode_mb_internal(s, motion_x, motion_y, 8, 6);
1797 else encode_mb_internal(s, motion_x, motion_y, 16, 8);
1800 static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1803 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1806 d->mb_skip_run= s->mb_skip_run;
1808 d->last_dc[i]= s->last_dc[i];
1811 d->mv_bits= s->mv_bits;
1812 d->i_tex_bits= s->i_tex_bits;
1813 d->p_tex_bits= s->p_tex_bits;
1814 d->i_count= s->i_count;
1815 d->f_count= s->f_count;
1816 d->b_count= s->b_count;
1817 d->skip_count= s->skip_count;
1818 d->misc_bits= s->misc_bits;
1822 d->qscale= s->qscale;
1823 d->dquant= s->dquant;
1825 d->esc3_level_length= s->esc3_level_length;
1828 static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1831 memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
1832 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1835 d->mb_skip_run= s->mb_skip_run;
1837 d->last_dc[i]= s->last_dc[i];
1840 d->mv_bits= s->mv_bits;
1841 d->i_tex_bits= s->i_tex_bits;
1842 d->p_tex_bits= s->p_tex_bits;
1843 d->i_count= s->i_count;
1844 d->f_count= s->f_count;
1845 d->b_count= s->b_count;
1846 d->skip_count= s->skip_count;
1847 d->misc_bits= s->misc_bits;
1849 d->mb_intra= s->mb_intra;
1850 d->mb_skipped= s->mb_skipped;
1851 d->mv_type= s->mv_type;
1852 d->mv_dir= s->mv_dir;
1854 if(s->data_partitioning){
1856 d->tex_pb= s->tex_pb;
1860 d->block_last_index[i]= s->block_last_index[i];
1861 d->interlaced_dct= s->interlaced_dct;
1862 d->qscale= s->qscale;
1864 d->esc3_level_length= s->esc3_level_length;
1867 static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type,
1868 PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
1869 int *dmin, int *next_block, int motion_x, int motion_y)
1872 uint8_t *dest_backup[3];
1874 copy_context_before_encode(s, backup, type);
1876 s->block= s->blocks[*next_block];
1877 s->pb= pb[*next_block];
1878 if(s->data_partitioning){
1879 s->pb2 = pb2 [*next_block];
1880 s->tex_pb= tex_pb[*next_block];
1884 memcpy(dest_backup, s->dest, sizeof(s->dest));
1885 s->dest[0] = s->rd_scratchpad;
1886 s->dest[1] = s->rd_scratchpad + 16*s->linesize;
1887 s->dest[2] = s->rd_scratchpad + 16*s->linesize + 8;
1888 assert(s->linesize >= 32); //FIXME
1891 encode_mb(s, motion_x, motion_y);
1893 score= put_bits_count(&s->pb);
1894 if(s->data_partitioning){
1895 score+= put_bits_count(&s->pb2);
1896 score+= put_bits_count(&s->tex_pb);
1899 if(s->avctx->mb_decision == FF_MB_DECISION_RD){
1900 MPV_decode_mb(s, s->block);
1902 score *= s->lambda2;
1903 score += sse_mb(s) << FF_LAMBDA_SHIFT;
1907 memcpy(s->dest, dest_backup, sizeof(s->dest));
1914 copy_context_after_encode(best, s, type);
1918 static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){
1919 uint32_t *sq = ff_squareTbl + 256;
1924 return s->dsp.sse[0](NULL, src1, src2, stride, 16);
1925 else if(w==8 && h==8)
1926 return s->dsp.sse[1](NULL, src1, src2, stride, 8);
1930 acc+= sq[src1[x + y*stride] - src2[x + y*stride]];
1939 static int sse_mb(MpegEncContext *s){
1943 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
1944 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
1947 if(s->avctx->mb_cmp == FF_CMP_NSSE){
1948 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)
1949 +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)
1950 +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);
1952 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)
1953 +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)
1954 +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);
1957 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)
1958 +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)
1959 +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);
1962 static int pre_estimate_motion_thread(AVCodecContext *c, void *arg){
1963 MpegEncContext *s= *(void**)arg;
1967 s->me.dia_size= s->avctx->pre_dia_size;
1968 s->first_slice_line=1;
1969 for(s->mb_y= s->end_mb_y-1; s->mb_y >= s->start_mb_y; s->mb_y--) {
1970 for(s->mb_x=s->mb_width-1; s->mb_x >=0 ;s->mb_x--) {
1971 ff_pre_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1973 s->first_slice_line=0;
1981 static int estimate_motion_thread(AVCodecContext *c, void *arg){
1982 MpegEncContext *s= *(void**)arg;
1984 ff_check_alignment();
1986 s->me.dia_size= s->avctx->dia_size;
1987 s->first_slice_line=1;
1988 for(s->mb_y= s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
1989 s->mb_x=0; //for block init below
1990 ff_init_block_index(s);
1991 for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {
1992 s->block_index[0]+=2;
1993 s->block_index[1]+=2;
1994 s->block_index[2]+=2;
1995 s->block_index[3]+=2;
1997 /* compute motion vector & mb_type and store in context */
1998 if(s->pict_type==FF_B_TYPE)
1999 ff_estimate_b_frame_motion(s, s->mb_x, s->mb_y);
2001 ff_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
2003 s->first_slice_line=0;
2008 static int mb_var_thread(AVCodecContext *c, void *arg){
2009 MpegEncContext *s= *(void**)arg;
2012 ff_check_alignment();
2014 for(mb_y=s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2015 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2018 uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
2020 int sum = s->dsp.pix_sum(pix, s->linesize);
2022 varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
2024 s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
2025 s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
2026 s->me.mb_var_sum_temp += varc;
2032 static void write_slice_end(MpegEncContext *s){
2033 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4){
2034 if(s->partitioned_frame){
2035 ff_mpeg4_merge_partitions(s);
2038 ff_mpeg4_stuffing(&s->pb);
2039 }else if(CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG){
2040 ff_mjpeg_encode_stuffing(&s->pb);
2043 align_put_bits(&s->pb);
2044 flush_put_bits(&s->pb);
2046 if((s->flags&CODEC_FLAG_PASS1) && !s->partitioned_frame)
2047 s->misc_bits+= get_bits_diff(s);
2050 static int encode_thread(AVCodecContext *c, void *arg){
2051 MpegEncContext *s= *(void**)arg;
2052 int mb_x, mb_y, pdif = 0;
2053 int chr_h= 16>>s->chroma_y_shift;
2055 MpegEncContext best_s, backup_s;
2056 uint8_t bit_buf[2][MAX_MB_BYTES];
2057 uint8_t bit_buf2[2][MAX_MB_BYTES];
2058 uint8_t bit_buf_tex[2][MAX_MB_BYTES];
2059 PutBitContext pb[2], pb2[2], tex_pb[2];
2060 //printf("%d->%d\n", s->resync_mb_y, s->end_mb_y);
2062 ff_check_alignment();
2065 init_put_bits(&pb [i], bit_buf [i], MAX_MB_BYTES);
2066 init_put_bits(&pb2 [i], bit_buf2 [i], MAX_MB_BYTES);
2067 init_put_bits(&tex_pb[i], bit_buf_tex[i], MAX_MB_BYTES);
2070 s->last_bits= put_bits_count(&s->pb);
2081 /* init last dc values */
2082 /* note: quant matrix value (8) is implied here */
2083 s->last_dc[i] = 128 << s->intra_dc_precision;
2085 s->current_picture.error[i] = 0;
2088 memset(s->last_mv, 0, sizeof(s->last_mv));
2092 switch(s->codec_id){
2094 case CODEC_ID_H263P:
2096 if (CONFIG_H263_ENCODER)
2097 s->gob_index = ff_h263_get_gob_height(s);
2099 case CODEC_ID_MPEG4:
2100 if(CONFIG_MPEG4_ENCODER && s->partitioned_frame)
2101 ff_mpeg4_init_partitions(s);
2107 s->first_slice_line = 1;
2108 s->ptr_lastgob = s->pb.buf;
2109 for(mb_y= s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2110 // printf("row %d at %X\n", s->mb_y, (int)s);
2114 ff_set_qscale(s, s->qscale);
2115 ff_init_block_index(s);
2117 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2118 int xy= mb_y*s->mb_stride + mb_x; // removed const, H261 needs to adjust this
2119 int mb_type= s->mb_type[xy];
2124 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < MAX_MB_BYTES){
2125 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2128 if(s->data_partitioning){
2129 if( s->pb2 .buf_end - s->pb2 .buf - (put_bits_count(&s-> pb2)>>3) < MAX_MB_BYTES
2130 || s->tex_pb.buf_end - s->tex_pb.buf - (put_bits_count(&s->tex_pb )>>3) < MAX_MB_BYTES){
2131 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2137 s->mb_y = mb_y; // moved into loop, can get changed by H.261
2138 ff_update_block_index(s);
2140 if(CONFIG_H261_ENCODER && s->codec_id == CODEC_ID_H261){
2141 ff_h261_reorder_mb_index(s);
2142 xy= s->mb_y*s->mb_stride + s->mb_x;
2143 mb_type= s->mb_type[xy];
2146 /* write gob / video packet header */
2148 int current_packet_size, is_gob_start;
2150 current_packet_size= ((put_bits_count(&s->pb)+7)>>3) - (s->ptr_lastgob - s->pb.buf);
2152 is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0;
2154 if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1;
2156 switch(s->codec_id){
2158 case CODEC_ID_H263P:
2159 if(!s->h263_slice_structured)
2160 if(s->mb_x || s->mb_y%s->gob_index) is_gob_start=0;
2162 case CODEC_ID_MPEG2VIDEO:
2163 if(s->mb_x==0 && s->mb_y!=0) is_gob_start=1;
2164 case CODEC_ID_MPEG1VIDEO:
2165 if(s->mb_skip_run) is_gob_start=0;
2170 if(s->start_mb_y != mb_y || mb_x!=0){
2173 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){
2174 ff_mpeg4_init_partitions(s);
2178 assert((put_bits_count(&s->pb)&7) == 0);
2179 current_packet_size= put_bits_ptr(&s->pb) - s->ptr_lastgob;
2181 if(s->avctx->error_rate && s->resync_mb_x + s->resync_mb_y > 0){
2182 int r= put_bits_count(&s->pb)/8 + s->picture_number + 16 + s->mb_x + s->mb_y;
2183 int d= 100 / s->avctx->error_rate;
2185 current_packet_size=0;
2186 #ifndef ALT_BITSTREAM_WRITER
2187 s->pb.buf_ptr= s->ptr_lastgob;
2189 assert(put_bits_ptr(&s->pb) == s->ptr_lastgob);
2193 if (s->avctx->rtp_callback){
2194 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width + mb_x - s->resync_mb_x;
2195 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, current_packet_size, number_mb);
2198 switch(s->codec_id){
2199 case CODEC_ID_MPEG4:
2200 if (CONFIG_MPEG4_ENCODER) {
2201 ff_mpeg4_encode_video_packet_header(s);
2202 ff_mpeg4_clean_buffers(s);
2205 case CODEC_ID_MPEG1VIDEO:
2206 case CODEC_ID_MPEG2VIDEO:
2207 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) {
2208 ff_mpeg1_encode_slice_header(s);
2209 ff_mpeg1_clean_buffers(s);
2213 case CODEC_ID_H263P:
2214 if (CONFIG_H263_ENCODER)
2215 h263_encode_gob_header(s, mb_y);
2219 if(s->flags&CODEC_FLAG_PASS1){
2220 int bits= put_bits_count(&s->pb);
2221 s->misc_bits+= bits - s->last_bits;
2225 s->ptr_lastgob += current_packet_size;
2226 s->first_slice_line=1;
2227 s->resync_mb_x=mb_x;
2228 s->resync_mb_y=mb_y;
2232 if( (s->resync_mb_x == s->mb_x)
2233 && s->resync_mb_y+1 == s->mb_y){
2234 s->first_slice_line=0;
2238 s->dquant=0; //only for QP_RD
2240 if(mb_type & (mb_type-1) || (s->flags & CODEC_FLAG_QP_RD)){ // more than 1 MB type possible or CODEC_FLAG_QP_RD
2242 int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
2244 copy_context_before_encode(&backup_s, s, -1);
2246 best_s.data_partitioning= s->data_partitioning;
2247 best_s.partitioned_frame= s->partitioned_frame;
2248 if(s->data_partitioning){
2249 backup_s.pb2= s->pb2;
2250 backup_s.tex_pb= s->tex_pb;
2253 if(mb_type&CANDIDATE_MB_TYPE_INTER){
2254 s->mv_dir = MV_DIR_FORWARD;
2255 s->mv_type = MV_TYPE_16X16;
2257 s->mv[0][0][0] = s->p_mv_table[xy][0];
2258 s->mv[0][0][1] = s->p_mv_table[xy][1];
2259 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER, pb, pb2, tex_pb,
2260 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2262 if(mb_type&CANDIDATE_MB_TYPE_INTER_I){
2263 s->mv_dir = MV_DIR_FORWARD;
2264 s->mv_type = MV_TYPE_FIELD;
2267 j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2268 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2269 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2271 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER_I, pb, pb2, tex_pb,
2272 &dmin, &next_block, 0, 0);
2274 if(mb_type&CANDIDATE_MB_TYPE_SKIPPED){
2275 s->mv_dir = MV_DIR_FORWARD;
2276 s->mv_type = MV_TYPE_16X16;
2280 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_SKIPPED, pb, pb2, tex_pb,
2281 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2283 if(mb_type&CANDIDATE_MB_TYPE_INTER4V){
2284 s->mv_dir = MV_DIR_FORWARD;
2285 s->mv_type = MV_TYPE_8X8;
2288 s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2289 s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2291 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER4V, pb, pb2, tex_pb,
2292 &dmin, &next_block, 0, 0);
2294 if(mb_type&CANDIDATE_MB_TYPE_FORWARD){
2295 s->mv_dir = MV_DIR_FORWARD;
2296 s->mv_type = MV_TYPE_16X16;
2298 s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2299 s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2300 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD, pb, pb2, tex_pb,
2301 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2303 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD){
2304 s->mv_dir = MV_DIR_BACKWARD;
2305 s->mv_type = MV_TYPE_16X16;
2307 s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2308 s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2309 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD, pb, pb2, tex_pb,
2310 &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
2312 if(mb_type&CANDIDATE_MB_TYPE_BIDIR){
2313 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2314 s->mv_type = MV_TYPE_16X16;
2316 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2317 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2318 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2319 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2320 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb,
2321 &dmin, &next_block, 0, 0);
2323 if(mb_type&CANDIDATE_MB_TYPE_FORWARD_I){
2324 s->mv_dir = MV_DIR_FORWARD;
2325 s->mv_type = MV_TYPE_FIELD;
2328 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2329 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2330 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2332 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD_I, pb, pb2, tex_pb,
2333 &dmin, &next_block, 0, 0);
2335 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD_I){
2336 s->mv_dir = MV_DIR_BACKWARD;
2337 s->mv_type = MV_TYPE_FIELD;
2340 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2341 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2342 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2344 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD_I, pb, pb2, tex_pb,
2345 &dmin, &next_block, 0, 0);
2347 if(mb_type&CANDIDATE_MB_TYPE_BIDIR_I){
2348 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2349 s->mv_type = MV_TYPE_FIELD;
2351 for(dir=0; dir<2; dir++){
2353 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2354 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2355 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2358 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR_I, pb, pb2, tex_pb,
2359 &dmin, &next_block, 0, 0);
2361 if(mb_type&CANDIDATE_MB_TYPE_INTRA){
2363 s->mv_type = MV_TYPE_16X16;
2367 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTRA, pb, pb2, tex_pb,
2368 &dmin, &next_block, 0, 0);
2369 if(s->h263_pred || s->h263_aic){
2371 s->mbintra_table[mb_x + mb_y*s->mb_stride]=1;
2373 ff_clean_intra_table_entries(s); //old mode?
2377 if((s->flags & CODEC_FLAG_QP_RD) && dmin < INT_MAX){
2378 if(best_s.mv_type==MV_TYPE_16X16){ //FIXME move 4mv after QPRD
2379 const int last_qp= backup_s.qscale;
2382 const int mvdir= (best_s.mv_dir&MV_DIR_BACKWARD) ? 1 : 0;
2383 static const int dquant_tab[4]={-1,1,-2,2};
2385 assert(backup_s.dquant == 0);
2388 s->mv_dir= best_s.mv_dir;
2389 s->mv_type = MV_TYPE_16X16;
2390 s->mb_intra= best_s.mb_intra;
2391 s->mv[0][0][0] = best_s.mv[0][0][0];
2392 s->mv[0][0][1] = best_s.mv[0][0][1];
2393 s->mv[1][0][0] = best_s.mv[1][0][0];
2394 s->mv[1][0][1] = best_s.mv[1][0][1];
2396 qpi = s->pict_type == FF_B_TYPE ? 2 : 0;
2397 for(; qpi<4; qpi++){
2398 int dquant= dquant_tab[qpi];
2399 qp= last_qp + dquant;
2400 if(qp < s->avctx->qmin || qp > s->avctx->qmax)
2402 backup_s.dquant= dquant;
2403 if(s->mb_intra && s->dc_val[0]){
2405 dc[i]= s->dc_val[0][ s->block_index[i] ];
2406 memcpy(ac[i], s->ac_val[0][s->block_index[i]], sizeof(DCTELEM)*16);
2410 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2411 &dmin, &next_block, s->mv[mvdir][0][0], s->mv[mvdir][0][1]);
2412 if(best_s.qscale != qp){
2413 if(s->mb_intra && s->dc_val[0]){
2415 s->dc_val[0][ s->block_index[i] ]= dc[i];
2416 memcpy(s->ac_val[0][s->block_index[i]], ac[i], sizeof(DCTELEM)*16);
2423 if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT){
2424 int mx= s->b_direct_mv_table[xy][0];
2425 int my= s->b_direct_mv_table[xy][1];
2427 backup_s.dquant = 0;
2428 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2430 ff_mpeg4_set_direct_mv(s, mx, my);
2431 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2432 &dmin, &next_block, mx, my);
2434 if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT0){
2435 backup_s.dquant = 0;
2436 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2438 ff_mpeg4_set_direct_mv(s, 0, 0);
2439 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2440 &dmin, &next_block, 0, 0);
2442 if(!best_s.mb_intra && s->flags2&CODEC_FLAG2_SKIP_RD){
2445 coded |= s->block_last_index[i];
2448 memcpy(s->mv, best_s.mv, sizeof(s->mv));
2449 if(CONFIG_MPEG4_ENCODER && best_s.mv_dir & MV_DIRECT){
2450 mx=my=0; //FIXME find the one we actually used
2451 ff_mpeg4_set_direct_mv(s, mx, my);
2452 }else if(best_s.mv_dir&MV_DIR_BACKWARD){
2460 s->mv_dir= best_s.mv_dir;
2461 s->mv_type = best_s.mv_type;
2463 /* s->mv[0][0][0] = best_s.mv[0][0][0];
2464 s->mv[0][0][1] = best_s.mv[0][0][1];
2465 s->mv[1][0][0] = best_s.mv[1][0][0];
2466 s->mv[1][0][1] = best_s.mv[1][0][1];*/
2469 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2470 &dmin, &next_block, mx, my);
2475 s->current_picture.qscale_table[xy]= best_s.qscale;
2477 copy_context_after_encode(s, &best_s, -1);
2479 pb_bits_count= put_bits_count(&s->pb);
2480 flush_put_bits(&s->pb);
2481 ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
2484 if(s->data_partitioning){
2485 pb2_bits_count= put_bits_count(&s->pb2);
2486 flush_put_bits(&s->pb2);
2487 ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
2488 s->pb2= backup_s.pb2;
2490 tex_pb_bits_count= put_bits_count(&s->tex_pb);
2491 flush_put_bits(&s->tex_pb);
2492 ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
2493 s->tex_pb= backup_s.tex_pb;
2495 s->last_bits= put_bits_count(&s->pb);
2497 if (CONFIG_H263_ENCODER &&
2498 s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
2499 ff_h263_update_motion_val(s);
2501 if(next_block==0){ //FIXME 16 vs linesize16
2502 s->dsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad , s->linesize ,16);
2503 s->dsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize , s->uvlinesize, 8);
2504 s->dsp.put_pixels_tab[1][0](s->dest[2], s->rd_scratchpad + 16*s->linesize + 8, s->uvlinesize, 8);
2507 if(s->avctx->mb_decision == FF_MB_DECISION_BITS)
2508 MPV_decode_mb(s, s->block);
2510 int motion_x = 0, motion_y = 0;
2511 s->mv_type=MV_TYPE_16X16;
2512 // only one MB-Type possible
2515 case CANDIDATE_MB_TYPE_INTRA:
2518 motion_x= s->mv[0][0][0] = 0;
2519 motion_y= s->mv[0][0][1] = 0;
2521 case CANDIDATE_MB_TYPE_INTER:
2522 s->mv_dir = MV_DIR_FORWARD;
2524 motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
2525 motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
2527 case CANDIDATE_MB_TYPE_INTER_I:
2528 s->mv_dir = MV_DIR_FORWARD;
2529 s->mv_type = MV_TYPE_FIELD;
2532 j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2533 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2534 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2537 case CANDIDATE_MB_TYPE_INTER4V:
2538 s->mv_dir = MV_DIR_FORWARD;
2539 s->mv_type = MV_TYPE_8X8;
2542 s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2543 s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2546 case CANDIDATE_MB_TYPE_DIRECT:
2547 if (CONFIG_MPEG4_ENCODER) {
2548 s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2550 motion_x=s->b_direct_mv_table[xy][0];
2551 motion_y=s->b_direct_mv_table[xy][1];
2552 ff_mpeg4_set_direct_mv(s, motion_x, motion_y);
2555 case CANDIDATE_MB_TYPE_DIRECT0:
2556 if (CONFIG_MPEG4_ENCODER) {
2557 s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2559 ff_mpeg4_set_direct_mv(s, 0, 0);
2562 case CANDIDATE_MB_TYPE_BIDIR:
2563 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2565 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2566 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2567 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2568 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2570 case CANDIDATE_MB_TYPE_BACKWARD:
2571 s->mv_dir = MV_DIR_BACKWARD;
2573 motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2574 motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2576 case CANDIDATE_MB_TYPE_FORWARD:
2577 s->mv_dir = MV_DIR_FORWARD;
2579 motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2580 motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2581 // printf(" %d %d ", motion_x, motion_y);
2583 case CANDIDATE_MB_TYPE_FORWARD_I:
2584 s->mv_dir = MV_DIR_FORWARD;
2585 s->mv_type = MV_TYPE_FIELD;
2588 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2589 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2590 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2593 case CANDIDATE_MB_TYPE_BACKWARD_I:
2594 s->mv_dir = MV_DIR_BACKWARD;
2595 s->mv_type = MV_TYPE_FIELD;
2598 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2599 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2600 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2603 case CANDIDATE_MB_TYPE_BIDIR_I:
2604 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2605 s->mv_type = MV_TYPE_FIELD;
2607 for(dir=0; dir<2; dir++){
2609 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2610 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2611 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2616 av_log(s->avctx, AV_LOG_ERROR, "illegal MB type\n");
2619 encode_mb(s, motion_x, motion_y);
2621 // RAL: Update last macroblock type
2622 s->last_mv_dir = s->mv_dir;
2624 if (CONFIG_H263_ENCODER &&
2625 s->out_format == FMT_H263 && s->pict_type!=FF_B_TYPE)
2626 ff_h263_update_motion_val(s);
2628 MPV_decode_mb(s, s->block);
2631 /* clean the MV table in IPS frames for direct mode in B frames */
2632 if(s->mb_intra /* && I,P,S_TYPE */){
2633 s->p_mv_table[xy][0]=0;
2634 s->p_mv_table[xy][1]=0;
2637 if(s->flags&CODEC_FLAG_PSNR){
2641 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
2642 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
2644 s->current_picture.error[0] += sse(
2645 s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16,
2646 s->dest[0], w, h, s->linesize);
2647 s->current_picture.error[1] += sse(
2648 s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*chr_h,
2649 s->dest[1], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
2650 s->current_picture.error[2] += sse(
2651 s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*chr_h,
2652 s->dest[2], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
2655 if(CONFIG_H263_ENCODER && s->out_format == FMT_H263)
2656 ff_h263_loop_filter(s);
2658 //printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, put_bits_count(&s->pb));
2662 //not beautiful here but we must write it before flushing so it has to be here
2663 if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == FF_I_TYPE)
2664 msmpeg4_encode_ext_header(s);
2668 /* Send the last GOB if RTP */
2669 if (s->avctx->rtp_callback) {
2670 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width - s->resync_mb_x;
2671 pdif = put_bits_ptr(&s->pb) - s->ptr_lastgob;
2672 /* Call the RTP callback to send the last GOB */
2674 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, pdif, number_mb);
2680 #define MERGE(field) dst->field += src->field; src->field=0
2681 static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src){
2682 MERGE(me.scene_change_score);
2683 MERGE(me.mc_mb_var_sum_temp);
2684 MERGE(me.mb_var_sum_temp);
2687 static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src){
2690 MERGE(dct_count[0]); //note, the other dct vars are not part of the context
2691 MERGE(dct_count[1]);
2701 MERGE(padding_bug_score);
2702 MERGE(current_picture.error[0]);
2703 MERGE(current_picture.error[1]);
2704 MERGE(current_picture.error[2]);
2706 if(dst->avctx->noise_reduction){
2707 for(i=0; i<64; i++){
2708 MERGE(dct_error_sum[0][i]);
2709 MERGE(dct_error_sum[1][i]);
2713 assert(put_bits_count(&src->pb) % 8 ==0);
2714 assert(put_bits_count(&dst->pb) % 8 ==0);
2715 ff_copy_bits(&dst->pb, src->pb.buf, put_bits_count(&src->pb));
2716 flush_put_bits(&dst->pb);
2719 static int estimate_qp(MpegEncContext *s, int dry_run){
2720 if (s->next_lambda){
2721 s->current_picture_ptr->quality=
2722 s->current_picture.quality = s->next_lambda;
2723 if(!dry_run) s->next_lambda= 0;
2724 } else if (!s->fixed_qscale) {
2725 s->current_picture_ptr->quality=
2726 s->current_picture.quality = ff_rate_estimate_qscale(s, dry_run);
2727 if (s->current_picture.quality < 0)
2731 if(s->adaptive_quant){
2732 switch(s->codec_id){
2733 case CODEC_ID_MPEG4:
2734 if (CONFIG_MPEG4_ENCODER)
2735 ff_clean_mpeg4_qscales(s);
2738 case CODEC_ID_H263P:
2740 if (CONFIG_H263_ENCODER)
2741 ff_clean_h263_qscales(s);
2744 ff_init_qscale_tab(s);
2747 s->lambda= s->lambda_table[0];
2750 s->lambda= s->current_picture.quality;
2751 //printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality);
2756 /* must be called before writing the header */
2757 static void set_frame_distances(MpegEncContext * s){
2758 assert(s->current_picture_ptr->pts != AV_NOPTS_VALUE);
2759 s->time= s->current_picture_ptr->pts*s->avctx->time_base.num;
2761 if(s->pict_type==FF_B_TYPE){
2762 s->pb_time= s->pp_time - (s->last_non_b_time - s->time);
2763 assert(s->pb_time > 0 && s->pb_time < s->pp_time);
2765 s->pp_time= s->time - s->last_non_b_time;
2766 s->last_non_b_time= s->time;
2767 assert(s->picture_number==0 || s->pp_time > 0);
2771 static int encode_picture(MpegEncContext *s, int picture_number)
2775 int context_count = s->avctx->active_thread_type&FF_THREAD_SLICE ? s->avctx->thread_count : 1;
2777 s->picture_number = picture_number;
2779 /* Reset the average MB variance */
2780 s->me.mb_var_sum_temp =
2781 s->me.mc_mb_var_sum_temp = 0;
2783 /* we need to initialize some time vars before we can encode b-frames */
2784 // RAL: Condition added for MPEG1VIDEO
2785 if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->h263_msmpeg4))
2786 set_frame_distances(s);
2787 if(CONFIG_MPEG4_ENCODER && s->codec_id == CODEC_ID_MPEG4)
2788 ff_set_mpeg4_time(s);
2790 s->me.scene_change_score=0;
2792 // s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME rate distortion
2794 if(s->pict_type==FF_I_TYPE){
2795 if(s->msmpeg4_version >= 3) s->no_rounding=1;
2796 else s->no_rounding=0;
2797 }else if(s->pict_type!=FF_B_TYPE){
2798 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
2799 s->no_rounding ^= 1;
2802 if(s->flags & CODEC_FLAG_PASS2){
2803 if (estimate_qp(s,1) < 0)
2805 ff_get_2pass_fcode(s);
2806 }else if(!(s->flags & CODEC_FLAG_QSCALE)){
2807 if(s->pict_type==FF_B_TYPE)
2808 s->lambda= s->last_lambda_for[s->pict_type];
2810 s->lambda= s->last_lambda_for[s->last_non_b_pict_type];
2814 s->mb_intra=0; //for the rate distortion & bit compare functions
2815 for(i=1; i<context_count; i++){
2816 ff_update_duplicate_context(s->thread_context[i], s);
2822 /* Estimate motion for every MB */
2823 if(s->pict_type != FF_I_TYPE){
2824 s->lambda = (s->lambda * s->avctx->me_penalty_compensation + 128)>>8;
2825 s->lambda2= (s->lambda2* (int64_t)s->avctx->me_penalty_compensation + 128)>>8;
2826 if(s->pict_type != FF_B_TYPE && s->avctx->me_threshold==0){
2827 if((s->avctx->pre_me && s->last_non_b_pict_type==FF_I_TYPE) || s->avctx->pre_me==2){
2828 s->avctx->execute(s->avctx, pre_estimate_motion_thread, &s->thread_context[0], NULL, context_count, sizeof(void*));
2832 s->avctx->execute(s->avctx, estimate_motion_thread, &s->thread_context[0], NULL, context_count, sizeof(void*));
2833 }else /* if(s->pict_type == FF_I_TYPE) */{
2835 for(i=0; i<s->mb_stride*s->mb_height; i++)
2836 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2838 if(!s->fixed_qscale){
2839 /* finding spatial complexity for I-frame rate control */
2840 s->avctx->execute(s->avctx, mb_var_thread, &s->thread_context[0], NULL, context_count, sizeof(void*));
2843 for(i=1; i<context_count; i++){
2844 merge_context_after_me(s, s->thread_context[i]);
2846 s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum= s->me.mc_mb_var_sum_temp;
2847 s->current_picture. mb_var_sum= s->current_picture_ptr-> mb_var_sum= s->me. mb_var_sum_temp;
2850 if(s->me.scene_change_score > s->avctx->scenechange_threshold && s->pict_type == FF_P_TYPE){
2851 s->pict_type= FF_I_TYPE;
2852 for(i=0; i<s->mb_stride*s->mb_height; i++)
2853 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2854 //printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum);
2858 if(s->pict_type==FF_P_TYPE || s->pict_type==FF_S_TYPE) {
2859 s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER);
2861 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2863 a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select
2864 b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I);
2865 s->f_code= FFMAX3(s->f_code, a, b);
2868 ff_fix_long_p_mvs(s);
2869 ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0);
2870 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2874 ff_fix_long_mvs(s, s->p_field_select_table[i], j,
2875 s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0);
2880 if(s->pict_type==FF_B_TYPE){
2883 a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD);
2884 b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2885 s->f_code = FFMAX(a, b);
2887 a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD);
2888 b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2889 s->b_code = FFMAX(a, b);
2891 ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1);
2892 ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1);
2893 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2894 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2895 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2897 for(dir=0; dir<2; dir++){
2900 int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I)
2901 : (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I);
2902 ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j,
2903 s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1);
2911 if (estimate_qp(s, 0) < 0)
2914 if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==FF_I_TYPE && !(s->flags & CODEC_FLAG_QSCALE))
2915 s->qscale= 3; //reduce clipping problems
2917 if (s->out_format == FMT_MJPEG) {
2918 /* for mjpeg, we do include qscale in the matrix */
2920 int j= s->dsp.idct_permutation[i];
2922 s->intra_matrix[j] = av_clip_uint8((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
2924 s->y_dc_scale_table=
2925 s->c_dc_scale_table= ff_mpeg2_dc_scale_table[s->intra_dc_precision];
2926 s->intra_matrix[0] = ff_mpeg2_dc_scale_table[s->intra_dc_precision][8];
2927 ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
2928 s->intra_matrix, s->intra_quant_bias, 8, 8, 1);
2932 //FIXME var duplication
2933 s->current_picture_ptr->key_frame=
2934 s->current_picture.key_frame= s->pict_type == FF_I_TYPE; //FIXME pic_ptr
2935 s->current_picture_ptr->pict_type=
2936 s->current_picture.pict_type= s->pict_type;
2938 if(s->current_picture.key_frame)
2939 s->picture_in_gop_number=0;
2941 s->last_bits= put_bits_count(&s->pb);
2942 switch(s->out_format) {
2944 if (CONFIG_MJPEG_ENCODER)
2945 ff_mjpeg_encode_picture_header(s);
2948 if (CONFIG_H261_ENCODER)
2949 ff_h261_encode_picture_header(s, picture_number);
2952 if (CONFIG_WMV2_ENCODER && s->codec_id == CODEC_ID_WMV2)
2953 ff_wmv2_encode_picture_header(s, picture_number);
2954 else if (CONFIG_MSMPEG4_ENCODER && s->h263_msmpeg4)
2955 msmpeg4_encode_picture_header(s, picture_number);
2956 else if (CONFIG_MPEG4_ENCODER && s->h263_pred)
2957 mpeg4_encode_picture_header(s, picture_number);
2958 else if (CONFIG_RV10_ENCODER && s->codec_id == CODEC_ID_RV10)
2959 rv10_encode_picture_header(s, picture_number);
2960 else if (CONFIG_RV20_ENCODER && s->codec_id == CODEC_ID_RV20)
2961 rv20_encode_picture_header(s, picture_number);
2962 else if (CONFIG_FLV_ENCODER && s->codec_id == CODEC_ID_FLV1)
2963 ff_flv_encode_picture_header(s, picture_number);
2964 else if (CONFIG_H263_ENCODER)
2965 h263_encode_picture_header(s, picture_number);
2968 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
2969 mpeg1_encode_picture_header(s, picture_number);
2976 bits= put_bits_count(&s->pb);
2977 s->header_bits= bits - s->last_bits;
2979 for(i=1; i<context_count; i++){
2980 update_duplicate_context_after_me(s->thread_context[i], s);
2982 s->avctx->execute(s->avctx, encode_thread, &s->thread_context[0], NULL, context_count, sizeof(void*));
2983 for(i=1; i<context_count; i++){
2984 merge_context_after_encode(s, s->thread_context[i]);
2990 static void denoise_dct_c(MpegEncContext *s, DCTELEM *block){
2991 const int intra= s->mb_intra;
2994 s->dct_count[intra]++;
2996 for(i=0; i<64; i++){
2997 int level= block[i];
3001 s->dct_error_sum[intra][i] += level;
3002 level -= s->dct_offset[intra][i];
3003 if(level<0) level=0;
3005 s->dct_error_sum[intra][i] -= level;
3006 level += s->dct_offset[intra][i];
3007 if(level>0) level=0;
3014 static int dct_quantize_trellis_c(MpegEncContext *s,
3015 DCTELEM *block, int n,
3016 int qscale, int *overflow){
3018 const uint8_t *scantable= s->intra_scantable.scantable;
3019 const uint8_t *perm_scantable= s->intra_scantable.permutated;
3021 unsigned int threshold1, threshold2;
3033 int coeff_count[64];
3034 int qmul, qadd, start_i, last_non_zero, i, dc;
3035 const int esc_length= s->ac_esc_length;
3037 uint8_t * last_length;
3038 const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6);
3040 s->dsp.fdct (block);
3042 if(s->dct_error_sum)
3043 s->denoise_dct(s, block);
3045 qadd= ((qscale-1)|1)*8;
3056 /* For AIC we skip quant/dequant of INTRADC */
3061 /* note: block[0] is assumed to be positive */
3062 block[0] = (block[0] + (q >> 1)) / q;
3065 qmat = s->q_intra_matrix[qscale];
3066 if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3067 bias= 1<<(QMAT_SHIFT-1);
3068 length = s->intra_ac_vlc_length;
3069 last_length= s->intra_ac_vlc_last_length;
3073 qmat = s->q_inter_matrix[qscale];
3074 length = s->inter_ac_vlc_length;
3075 last_length= s->inter_ac_vlc_last_length;
3079 threshold1= (1<<QMAT_SHIFT) - bias - 1;
3080 threshold2= (threshold1<<1);
3082 for(i=63; i>=start_i; i--) {
3083 const int j = scantable[i];
3084 int level = block[j] * qmat[j];
3086 if(((unsigned)(level+threshold1))>threshold2){
3092 for(i=start_i; i<=last_non_zero; i++) {
3093 const int j = scantable[i];
3094 int level = block[j] * qmat[j];
3096 // if( bias+level >= (1<<(QMAT_SHIFT - 3))
3097 // || bias-level >= (1<<(QMAT_SHIFT - 3))){
3098 if(((unsigned)(level+threshold1))>threshold2){
3100 level= (bias + level)>>QMAT_SHIFT;
3102 coeff[1][i]= level-1;
3103 // coeff[2][k]= level-2;
3105 level= (bias - level)>>QMAT_SHIFT;
3106 coeff[0][i]= -level;
3107 coeff[1][i]= -level+1;
3108 // coeff[2][k]= -level+2;
3110 coeff_count[i]= FFMIN(level, 2);
3111 assert(coeff_count[i]);
3114 coeff[0][i]= (level>>31)|1;
3119 *overflow= s->max_qcoeff < max; //overflow might have happened
3121 if(last_non_zero < start_i){
3122 memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3123 return last_non_zero;
3126 score_tab[start_i]= 0;
3127 survivor[0]= start_i;
3130 for(i=start_i; i<=last_non_zero; i++){
3131 int level_index, j, zero_distortion;
3132 int dct_coeff= FFABS(block[ scantable[i] ]);
3133 int best_score=256*256*256*120;
3135 if ( s->dsp.fdct == fdct_ifast
3136 #ifndef FAAN_POSTSCALE
3137 || s->dsp.fdct == ff_faandct
3140 dct_coeff= (dct_coeff*ff_inv_aanscales[ scantable[i] ]) >> 12;
3141 zero_distortion= dct_coeff*dct_coeff;
3143 for(level_index=0; level_index < coeff_count[i]; level_index++){
3145 int level= coeff[level_index][i];
3146 const int alevel= FFABS(level);
3151 if(s->out_format == FMT_H263){
3152 unquant_coeff= alevel*qmul + qadd;
3154 j= s->dsp.idct_permutation[ scantable[i] ]; //FIXME optimize
3156 unquant_coeff = (int)( alevel * qscale * s->intra_matrix[j]) >> 3;
3157 unquant_coeff = (unquant_coeff - 1) | 1;
3159 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[j])) >> 4;
3160 unquant_coeff = (unquant_coeff - 1) | 1;
3165 distortion= (unquant_coeff - dct_coeff) * (unquant_coeff - dct_coeff) - zero_distortion;
3167 if((level&(~127)) == 0){
3168 for(j=survivor_count-1; j>=0; j--){
3169 int run= i - survivor[j];
3170 int score= distortion + length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3171 score += score_tab[i-run];
3173 if(score < best_score){
3176 level_tab[i+1]= level-64;
3180 if(s->out_format == FMT_H263){
3181 for(j=survivor_count-1; j>=0; j--){
3182 int run= i - survivor[j];
3183 int score= distortion + last_length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3184 score += score_tab[i-run];
3185 if(score < last_score){
3188 last_level= level-64;
3194 distortion += esc_length*lambda;
3195 for(j=survivor_count-1; j>=0; j--){
3196 int run= i - survivor[j];
3197 int score= distortion + score_tab[i-run];
3199 if(score < best_score){
3202 level_tab[i+1]= level-64;
3206 if(s->out_format == FMT_H263){
3207 for(j=survivor_count-1; j>=0; j--){
3208 int run= i - survivor[j];
3209 int score= distortion + score_tab[i-run];
3210 if(score < last_score){
3213 last_level= level-64;
3221 score_tab[i+1]= best_score;
3223 //Note: there is a vlc code in mpeg4 which is 1 bit shorter then another one with a shorter run and the same level
3224 if(last_non_zero <= 27){
3225 for(; survivor_count; survivor_count--){
3226 if(score_tab[ survivor[survivor_count-1] ] <= best_score)
3230 for(; survivor_count; survivor_count--){
3231 if(score_tab[ survivor[survivor_count-1] ] <= best_score + lambda)
3236 survivor[ survivor_count++ ]= i+1;
3239 if(s->out_format != FMT_H263){
3240 last_score= 256*256*256*120;
3241 for(i= survivor[0]; i<=last_non_zero + 1; i++){
3242 int score= score_tab[i];
3243 if(i) score += lambda*2; //FIXME exacter?
3245 if(score < last_score){
3248 last_level= level_tab[i];
3249 last_run= run_tab[i];
3254 s->coded_score[n] = last_score;
3256 dc= FFABS(block[0]);
3257 last_non_zero= last_i - 1;
3258 memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3260 if(last_non_zero < start_i)
3261 return last_non_zero;
3263 if(last_non_zero == 0 && start_i == 0){
3265 int best_score= dc * dc;
3267 for(i=0; i<coeff_count[0]; i++){
3268 int level= coeff[i][0];
3269 int alevel= FFABS(level);
3270 int unquant_coeff, score, distortion;
3272 if(s->out_format == FMT_H263){
3273 unquant_coeff= (alevel*qmul + qadd)>>3;
3275 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[0])) >> 4;
3276 unquant_coeff = (unquant_coeff - 1) | 1;
3278 unquant_coeff = (unquant_coeff + 4) >> 3;
3279 unquant_coeff<<= 3 + 3;
3281 distortion= (unquant_coeff - dc) * (unquant_coeff - dc);
3283 if((level&(~127)) == 0) score= distortion + last_length[UNI_AC_ENC_INDEX(0, level)]*lambda;
3284 else score= distortion + esc_length*lambda;
3286 if(score < best_score){
3288 best_level= level - 64;
3291 block[0]= best_level;
3292 s->coded_score[n] = best_score - dc*dc;
3293 if(best_level == 0) return -1;
3294 else return last_non_zero;
3300 block[ perm_scantable[last_non_zero] ]= last_level;
3303 for(; i>start_i; i -= run_tab[i] + 1){
3304 block[ perm_scantable[i-1] ]= level_tab[i];
3307 return last_non_zero;
3310 //#define REFINE_STATS 1
3311 static int16_t basis[64][64];
3313 static void build_basis(uint8_t *perm){
3320 double s= 0.25*(1<<BASIS_SHIFT);
3322 int perm_index= perm[index];
3323 if(i==0) s*= sqrt(0.5);
3324 if(j==0) s*= sqrt(0.5);
3325 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)));
3332 static int dct_quantize_refine(MpegEncContext *s, //FIXME breaks denoise?
3333 DCTELEM *block, int16_t *weight, DCTELEM *orig,
3336 LOCAL_ALIGNED_16(DCTELEM, d1, [64]);
3337 const uint8_t *scantable= s->intra_scantable.scantable;
3338 const uint8_t *perm_scantable= s->intra_scantable.permutated;
3339 // unsigned int threshold1, threshold2;
3344 int qmul, qadd, start_i, last_non_zero, i, dc;
3346 uint8_t * last_length;
3348 int rle_index, run, q = 1, sum; //q is only used when s->mb_intra is true
3351 static int after_last=0;
3352 static int to_zero=0;
3353 static int from_zero=0;
3356 static int messed_sign=0;
3359 if(basis[0][0] == 0)
3360 build_basis(s->dsp.idct_permutation);
3371 /* For AIC we skip quant/dequant of INTRADC */
3375 q <<= RECON_SHIFT-3;
3376 /* note: block[0] is assumed to be positive */
3378 // block[0] = (block[0] + (q >> 1)) / q;
3380 // if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3381 // bias= 1<<(QMAT_SHIFT-1);
3382 length = s->intra_ac_vlc_length;
3383 last_length= s->intra_ac_vlc_last_length;
3387 length = s->inter_ac_vlc_length;
3388 last_length= s->inter_ac_vlc_last_length;
3390 last_non_zero = s->block_last_index[n];
3395 dc += (1<<(RECON_SHIFT-1));
3396 for(i=0; i<64; i++){
3397 rem[i]= dc - (orig[i]<<RECON_SHIFT); //FIXME use orig dirrectly instead of copying to rem[]
3400 STOP_TIMER("memset rem[]")}
3403 for(i=0; i<64; i++){
3408 w= FFABS(weight[i]) + qns*one;
3409 w= 15 + (48*qns*one + w/2)/w; // 16 .. 63
3412 // w=weight[i] = (63*qns + (w/2)) / w;
3418 lambda= sum*(uint64_t)s->lambda2 >> (FF_LAMBDA_SHIFT - 6 + 6 + 6 + 6);
3424 for(i=start_i; i<=last_non_zero; i++){
3425 int j= perm_scantable[i];
3426 const int level= block[j];
3430 if(level<0) coeff= qmul*level - qadd;
3431 else coeff= qmul*level + qadd;
3432 run_tab[rle_index++]=run;
3435 s->dsp.add_8x8basis(rem, basis[j], coeff);
3441 if(last_non_zero>0){
3442 STOP_TIMER("init rem[]")
3449 int best_score=s->dsp.try_8x8basis(rem, weight, basis[0], 0);
3452 int run2, best_unquant_change=0, analyze_gradient;
3456 analyze_gradient = last_non_zero > 2 || s->avctx->quantizer_noise_shaping >= 3;
3458 if(analyze_gradient){
3462 for(i=0; i<64; i++){
3465 d1[i] = (rem[i]*w*w + (1<<(RECON_SHIFT+12-1)))>>(RECON_SHIFT+12);
3468 STOP_TIMER("rem*w*w")}
3478 const int level= block[0];
3479 int change, old_coeff;
3481 assert(s->mb_intra);
3485 for(change=-1; change<=1; change+=2){
3486 int new_level= level + change;
3487 int score, new_coeff;
3489 new_coeff= q*new_level;
3490 if(new_coeff >= 2048 || new_coeff < 0)
3493 score= s->dsp.try_8x8basis(rem, weight, basis[0], new_coeff - old_coeff);
3494 if(score<best_score){
3497 best_change= change;
3498 best_unquant_change= new_coeff - old_coeff;
3505 run2= run_tab[rle_index++];
3509 for(i=start_i; i<64; i++){
3510 int j= perm_scantable[i];
3511 const int level= block[j];
3512 int change, old_coeff;
3514 if(s->avctx->quantizer_noise_shaping < 3 && i > last_non_zero + 1)
3518 if(level<0) old_coeff= qmul*level - qadd;
3519 else old_coeff= qmul*level + qadd;
3520 run2= run_tab[rle_index++]; //FIXME ! maybe after last
3524 assert(run2>=0 || i >= last_non_zero );
3527 for(change=-1; change<=1; change+=2){
3528 int new_level= level + change;
3529 int score, new_coeff, unquant_change;
3532 if(s->avctx->quantizer_noise_shaping < 2 && FFABS(new_level) > FFABS(level))
3536 if(new_level<0) new_coeff= qmul*new_level - qadd;
3537 else new_coeff= qmul*new_level + qadd;
3538 if(new_coeff >= 2048 || new_coeff <= -2048)
3540 //FIXME check for overflow
3543 if(level < 63 && level > -63){
3544 if(i < last_non_zero)
3545 score += length[UNI_AC_ENC_INDEX(run, new_level+64)]
3546 - length[UNI_AC_ENC_INDEX(run, level+64)];
3548 score += last_length[UNI_AC_ENC_INDEX(run, new_level+64)]
3549 - last_length[UNI_AC_ENC_INDEX(run, level+64)];
3552 assert(FFABS(new_level)==1);
3554 if(analyze_gradient){
3555 int g= d1[ scantable[i] ];
3556 if(g && (g^new_level) >= 0)
3560 if(i < last_non_zero){
3561 int next_i= i + run2 + 1;
3562 int next_level= block[ perm_scantable[next_i] ] + 64;
3564 if(next_level&(~127))
3567 if(next_i < last_non_zero)
3568 score += length[UNI_AC_ENC_INDEX(run, 65)]
3569 + length[UNI_AC_ENC_INDEX(run2, next_level)]
3570 - length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3572 score += length[UNI_AC_ENC_INDEX(run, 65)]
3573 + last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3574 - last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3576 score += last_length[UNI_AC_ENC_INDEX(run, 65)];
3578 score += length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3579 - last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3585 assert(FFABS(level)==1);
3587 if(i < last_non_zero){
3588 int next_i= i + run2 + 1;
3589 int next_level= block[ perm_scantable[next_i] ] + 64;
3591 if(next_level&(~127))
3594 if(next_i < last_non_zero)
3595 score += length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3596 - length[UNI_AC_ENC_INDEX(run2, next_level)]
3597 - length[UNI_AC_ENC_INDEX(run, 65)];
3599 score += last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3600 - last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3601 - length[UNI_AC_ENC_INDEX(run, 65)];
3603 score += -last_length[UNI_AC_ENC_INDEX(run, 65)];
3605 score += last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3606 - length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3613 unquant_change= new_coeff - old_coeff;
3614 assert((score < 100*lambda && score > -100*lambda) || lambda==0);
3616 score+= s->dsp.try_8x8basis(rem, weight, basis[j], unquant_change);
3617 if(score<best_score){
3620 best_change= change;
3621 best_unquant_change= unquant_change;
3625 prev_level= level + 64;
3626 if(prev_level&(~127))
3635 STOP_TIMER("iterative step")}
3639 int j= perm_scantable[ best_coeff ];
3641 block[j] += best_change;
3643 if(best_coeff > last_non_zero){
3644 last_non_zero= best_coeff;
3652 if(block[j] - best_change){
3653 if(FFABS(block[j]) > FFABS(block[j] - best_change)){
3665 for(; last_non_zero>=start_i; last_non_zero--){
3666 if(block[perm_scantable[last_non_zero]])
3672 if(256*256*256*64 % count == 0){
3673 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);
3678 for(i=start_i; i<=last_non_zero; i++){
3679 int j= perm_scantable[i];
3680 const int level= block[j];
3683 run_tab[rle_index++]=run;
3690 s->dsp.add_8x8basis(rem, basis[j], best_unquant_change);
3696 if(last_non_zero>0){
3697 STOP_TIMER("iterative search")
3702 return last_non_zero;
3705 int dct_quantize_c(MpegEncContext *s,
3706 DCTELEM *block, int n,
3707 int qscale, int *overflow)
3709 int i, j, level, last_non_zero, q, start_i;
3711 const uint8_t *scantable= s->intra_scantable.scantable;
3714 unsigned int threshold1, threshold2;
3716 s->dsp.fdct (block);
3718 if(s->dct_error_sum)
3719 s->denoise_dct(s, block);
3729 /* For AIC we skip quant/dequant of INTRADC */
3732 /* note: block[0] is assumed to be positive */
3733 block[0] = (block[0] + (q >> 1)) / q;
3736 qmat = s->q_intra_matrix[qscale];
3737 bias= s->intra_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3741 qmat = s->q_inter_matrix[qscale];
3742 bias= s->inter_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3744 threshold1= (1<<QMAT_SHIFT) - bias - 1;
3745 threshold2= (threshold1<<1);
3746 for(i=63;i>=start_i;i--) {
3748 level = block[j] * qmat[j];
3750 if(((unsigned)(level+threshold1))>threshold2){
3757 for(i=start_i; i<=last_non_zero; i++) {
3759 level = block[j] * qmat[j];
3761 // if( bias+level >= (1<<QMAT_SHIFT)
3762 // || bias-level >= (1<<QMAT_SHIFT)){
3763 if(((unsigned)(level+threshold1))>threshold2){
3765 level= (bias + level)>>QMAT_SHIFT;
3768 level= (bias - level)>>QMAT_SHIFT;
3776 *overflow= s->max_qcoeff < max; //overflow might have happened
3778 /* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */
3779 if (s->dsp.idct_permutation_type != FF_NO_IDCT_PERM)
3780 ff_block_permute(block, s->dsp.idct_permutation, scantable, last_non_zero);
3782 return last_non_zero;
3785 AVCodec ff_h263_encoder = {
3789 sizeof(MpegEncContext),
3793 .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3794 .long_name= NULL_IF_CONFIG_SMALL("H.263 / H.263-1996"),
3797 AVCodec ff_h263p_encoder = {
3801 sizeof(MpegEncContext),
3805 .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3806 .long_name= NULL_IF_CONFIG_SMALL("H.263+ / H.263-1998 / H.263 version 2"),
3809 AVCodec ff_msmpeg4v1_encoder = {
3813 sizeof(MpegEncContext),
3817 .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3818 .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 1"),
3821 AVCodec ff_msmpeg4v2_encoder = {
3825 sizeof(MpegEncContext),
3829 .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3830 .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 2"),
3833 AVCodec ff_msmpeg4v3_encoder = {
3837 sizeof(MpegEncContext),
3841 .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3842 .long_name= NULL_IF_CONFIG_SMALL("MPEG-4 part 2 Microsoft variant version 3"),
3845 AVCodec ff_wmv1_encoder = {
3849 sizeof(MpegEncContext),
3853 .pix_fmts= (const enum PixelFormat[]){PIX_FMT_YUV420P, PIX_FMT_NONE},
3854 .long_name= NULL_IF_CONFIG_SMALL("Windows Media Video 7"),