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 Libav.
10 * Libav 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 * Libav 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 Libav; 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"
31 #include "libavutil/mathematics.h"
32 #include "libavutil/opt.h"
35 #include "mpegvideo.h"
36 #include "mpegvideo_common.h"
42 #include "aandcttab.h"
44 #include "mpeg4video.h"
51 static int encode_picture(MpegEncContext *s, int picture_number);
52 static int dct_quantize_refine(MpegEncContext *s, DCTELEM *block, int16_t *weight, DCTELEM *orig, int n, int qscale);
53 static int sse_mb(MpegEncContext *s);
54 static void denoise_dct_c(MpegEncContext *s, DCTELEM *block);
55 static int dct_quantize_trellis_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
57 /* enable all paranoid tests for rounding, overflows, etc... */
62 static uint8_t default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
63 static uint8_t default_fcode_tab[MAX_MV*2+1];
65 void ff_convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
66 const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra)
71 for(qscale=qmin; qscale<=qmax; qscale++){
73 if (dsp->fdct == ff_jpeg_fdct_islow_8 ||
74 dsp->fdct == ff_jpeg_fdct_islow_10
76 || dsp->fdct == ff_faandct
80 const int j= dsp->idct_permutation[i];
81 /* 16 <= qscale * quant_matrix[i] <= 7905 */
82 /* 19952 <= ff_aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
83 /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1 << 36) / 249205026 */
84 /* 3444240 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
86 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) /
87 (qscale * quant_matrix[j]));
89 } else if (dsp->fdct == fdct_ifast
90 #ifndef FAAN_POSTSCALE
91 || dsp->fdct == ff_faandct
95 const int j= dsp->idct_permutation[i];
96 /* 16 <= qscale * quant_matrix[i] <= 7905 */
97 /* 19952 <= ff_aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
98 /* (1 << 36) / 19952 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
99 /* 3444240 >= (1 << 36) / (ff_aanscales[i] * qscale * quant_matrix[i]) >= 275 */
101 qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) /
102 (ff_aanscales[i] * qscale * quant_matrix[j]));
106 const int j= dsp->idct_permutation[i];
107 /* We can safely suppose that 16 <= quant_matrix[i] <= 255
108 So 16 <= qscale * quant_matrix[i] <= 7905
109 so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
110 so 32768 >= (1<<19) / (qscale * quant_matrix[i]) >= 67
112 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / (qscale * quant_matrix[j]));
113 // qmat [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
114 qmat16[qscale][0][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[j]);
116 if(qmat16[qscale][0][i]==0 || qmat16[qscale][0][i]==128*256) qmat16[qscale][0][i]=128*256-1;
117 qmat16[qscale][1][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][0][i]);
121 for(i=intra; i<64; i++){
123 if (dsp->fdct == fdct_ifast
124 #ifndef FAAN_POSTSCALE
125 || dsp->fdct == ff_faandct
128 max = (8191LL*ff_aanscales[i]) >> 14;
130 while(((max * qmat[qscale][i]) >> shift) > INT_MAX){
136 av_log(NULL, AV_LOG_INFO, "Warning, QMAT_SHIFT is larger than %d, overflows possible\n", QMAT_SHIFT - shift);
140 static inline void update_qscale(MpegEncContext *s){
141 s->qscale= (s->lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
142 s->qscale= av_clip(s->qscale, s->avctx->qmin, s->avctx->qmax);
144 s->lambda2= (s->lambda*s->lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
147 void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix){
153 put_bits(pb, 8, matrix[ ff_zigzag_direct[i] ]);
160 * init s->current_picture.qscale_table from s->lambda_table
162 void ff_init_qscale_tab(MpegEncContext *s){
163 int8_t * const qscale_table = s->current_picture.f.qscale_table;
166 for(i=0; i<s->mb_num; i++){
167 unsigned int lam= s->lambda_table[ s->mb_index2xy[i] ];
168 int qp= (lam*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
169 qscale_table[ s->mb_index2xy[i] ]= av_clip(qp, s->avctx->qmin, s->avctx->qmax);
173 static void copy_picture_attributes(MpegEncContext *s, AVFrame *dst, AVFrame *src){
176 dst->pict_type = src->pict_type;
177 dst->quality = src->quality;
178 dst->coded_picture_number = src->coded_picture_number;
179 dst->display_picture_number = src->display_picture_number;
180 // dst->reference = src->reference;
182 dst->interlaced_frame = src->interlaced_frame;
183 dst->top_field_first = src->top_field_first;
185 if(s->avctx->me_threshold){
186 if(!src->motion_val[0])
187 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_val not set!\n");
189 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.mb_type not set!\n");
190 if(!src->ref_index[0])
191 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.ref_index not set!\n");
192 if(src->motion_subsample_log2 != dst->motion_subsample_log2)
193 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_subsample_log2 doesn't match! (%d!=%d)\n",
194 src->motion_subsample_log2, dst->motion_subsample_log2);
196 memcpy(dst->mb_type, src->mb_type, s->mb_stride * s->mb_height * sizeof(dst->mb_type[0]));
199 int stride= ((16*s->mb_width )>>src->motion_subsample_log2) + 1;
200 int height= ((16*s->mb_height)>>src->motion_subsample_log2);
202 if(src->motion_val[i] && src->motion_val[i] != dst->motion_val[i]){
203 memcpy(dst->motion_val[i], src->motion_val[i], 2*stride*height*sizeof(int16_t));
205 if(src->ref_index[i] && src->ref_index[i] != dst->ref_index[i]){
206 memcpy(dst->ref_index[i], src->ref_index[i], s->mb_stride*4*s->mb_height*sizeof(int8_t));
212 static void update_duplicate_context_after_me(MpegEncContext *dst, MpegEncContext *src){
213 #define COPY(a) dst->a= src->a
215 COPY(current_picture);
221 COPY(picture_in_gop_number);
222 COPY(gop_picture_number);
223 COPY(frame_pred_frame_dct); //FIXME don't set in encode_header
224 COPY(progressive_frame); //FIXME don't set in encode_header
225 COPY(partitioned_frame); //FIXME don't set in encode_header
230 * sets the given MpegEncContext to defaults for encoding.
231 * the changed fields will not depend upon the prior state of the MpegEncContext.
233 static void MPV_encode_defaults(MpegEncContext *s){
235 MPV_common_defaults(s);
237 for(i=-16; i<16; i++){
238 default_fcode_tab[i + MAX_MV]= 1;
240 s->me.mv_penalty= default_mv_penalty;
241 s->fcode_tab= default_fcode_tab;
244 /* init video encoder */
245 av_cold int MPV_encode_init(AVCodecContext *avctx)
247 MpegEncContext *s = avctx->priv_data;
249 int chroma_h_shift, chroma_v_shift;
251 MPV_encode_defaults(s);
253 switch (avctx->codec_id) {
254 case CODEC_ID_MPEG2VIDEO:
255 if(avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P){
256 av_log(avctx, AV_LOG_ERROR, "only YUV420 and YUV422 are supported\n");
261 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 &&
262 ((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)){
263 av_log(avctx, AV_LOG_ERROR, "colorspace not supported in LJPEG\n");
268 if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P &&
269 ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P) || avctx->strict_std_compliance>FF_COMPLIANCE_UNOFFICIAL)){
270 av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n");
275 if(avctx->pix_fmt != PIX_FMT_YUV420P){
276 av_log(avctx, AV_LOG_ERROR, "only YUV420 is supported\n");
281 switch (avctx->pix_fmt) {
282 case PIX_FMT_YUVJ422P:
283 case PIX_FMT_YUV422P:
284 s->chroma_format = CHROMA_422;
286 case PIX_FMT_YUVJ420P:
287 case PIX_FMT_YUV420P:
289 s->chroma_format = CHROMA_420;
293 s->bit_rate = avctx->bit_rate;
294 s->width = avctx->width;
295 s->height = avctx->height;
296 if(avctx->gop_size > 600 && avctx->strict_std_compliance>FF_COMPLIANCE_EXPERIMENTAL){
297 av_log(avctx, AV_LOG_ERROR, "Warning keyframe interval too large! reducing it ...\n");
300 s->gop_size = avctx->gop_size;
302 s->flags= avctx->flags;
303 s->flags2= avctx->flags2;
304 s->max_b_frames= avctx->max_b_frames;
305 s->codec_id= avctx->codec->id;
306 s->luma_elim_threshold = avctx->luma_elim_threshold;
307 s->chroma_elim_threshold= avctx->chroma_elim_threshold;
308 s->strict_std_compliance= avctx->strict_std_compliance;
309 #if FF_API_MPEGVIDEO_GLOBAL_OPTS
310 if (avctx->flags & CODEC_FLAG_PART)
311 s->data_partitioning = 1;
313 s->quarter_sample= (avctx->flags & CODEC_FLAG_QPEL)!=0;
314 s->mpeg_quant= avctx->mpeg_quant;
315 s->rtp_mode= !!avctx->rtp_payload_size;
316 s->intra_dc_precision= avctx->intra_dc_precision;
317 s->user_specified_pts = AV_NOPTS_VALUE;
319 if (s->gop_size <= 1) {
326 s->me_method = avctx->me_method;
329 s->fixed_qscale = !!(avctx->flags & CODEC_FLAG_QSCALE);
331 s->adaptive_quant= ( s->avctx->lumi_masking
332 || s->avctx->dark_masking
333 || s->avctx->temporal_cplx_masking
334 || s->avctx->spatial_cplx_masking
335 || s->avctx->p_masking
336 || s->avctx->border_masking
337 || (s->flags&CODEC_FLAG_QP_RD))
340 s->obmc= !!(s->flags & CODEC_FLAG_OBMC);
341 s->loop_filter= !!(s->flags & CODEC_FLAG_LOOP_FILTER);
342 #if FF_API_MPEGVIDEO_GLOBAL_OPTS
343 s->alternate_scan= !!(s->flags & CODEC_FLAG_ALT_SCAN);
344 s->intra_vlc_format= !!(s->flags2 & CODEC_FLAG2_INTRA_VLC);
345 s->q_scale_type= !!(s->flags2 & CODEC_FLAG2_NON_LINEAR_QUANT);
348 if(avctx->rc_max_rate && !avctx->rc_buffer_size){
349 av_log(avctx, AV_LOG_ERROR, "a vbv buffer size is needed, for encoding with a maximum bitrate\n");
353 if(avctx->rc_min_rate && avctx->rc_max_rate != avctx->rc_min_rate){
354 av_log(avctx, AV_LOG_INFO, "Warning min_rate > 0 but min_rate != max_rate isn't recommended!\n");
357 if(avctx->rc_min_rate && avctx->rc_min_rate > avctx->bit_rate){
358 av_log(avctx, AV_LOG_ERROR, "bitrate below min bitrate\n");
362 if(avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate){
363 av_log(avctx, AV_LOG_INFO, "bitrate above max bitrate\n");
367 if(avctx->rc_max_rate && avctx->rc_max_rate == avctx->bit_rate && avctx->rc_max_rate != avctx->rc_min_rate){
368 av_log(avctx, AV_LOG_INFO, "impossible bitrate constraints, this will fail\n");
371 if(avctx->rc_buffer_size && avctx->bit_rate*(int64_t)avctx->time_base.num > avctx->rc_buffer_size * (int64_t)avctx->time_base.den){
372 av_log(avctx, AV_LOG_ERROR, "VBV buffer too small for bitrate\n");
376 if(!s->fixed_qscale && avctx->bit_rate*av_q2d(avctx->time_base) > avctx->bit_rate_tolerance){
377 av_log(avctx, AV_LOG_ERROR, "bitrate tolerance too small for bitrate\n");
381 if( s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate
382 && (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO)
383 && 90000LL * (avctx->rc_buffer_size-1) > s->avctx->rc_max_rate*0xFFFFLL){
385 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");
388 if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4
389 && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P && s->codec_id != CODEC_ID_FLV1){
390 av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n");
394 if(s->obmc && s->avctx->mb_decision != FF_MB_DECISION_SIMPLE){
395 av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with simple mb decision\n");
399 if(s->obmc && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P){
400 av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with H263(+)\n");
404 if(s->quarter_sample && s->codec_id != CODEC_ID_MPEG4){
405 av_log(avctx, AV_LOG_ERROR, "qpel not supported by codec\n");
409 #if FF_API_MPEGVIDEO_GLOBAL_OPTS
410 if(s->data_partitioning && s->codec_id != CODEC_ID_MPEG4){
411 av_log(avctx, AV_LOG_ERROR, "data partitioning not supported by codec\n");
416 if(s->max_b_frames && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO){
417 av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n");
421 if ((s->codec_id == CODEC_ID_MPEG4 || s->codec_id == CODEC_ID_H263 ||
422 s->codec_id == CODEC_ID_H263P) &&
423 (avctx->sample_aspect_ratio.num > 255 || avctx->sample_aspect_ratio.den > 255)) {
424 av_log(avctx, AV_LOG_ERROR, "Invalid pixel aspect ratio %i/%i, limit is 255/255\n",
425 avctx->sample_aspect_ratio.num, avctx->sample_aspect_ratio.den);
429 if((s->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN))
430 && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG2VIDEO){
431 av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n");
435 if(s->mpeg_quant && s->codec_id != CODEC_ID_MPEG4){ //FIXME mpeg2 uses that too
436 av_log(avctx, AV_LOG_ERROR, "mpeg2 style quantization not supported by codec\n");
440 if((s->flags & CODEC_FLAG_CBP_RD) && !avctx->trellis){
441 av_log(avctx, AV_LOG_ERROR, "CBP RD needs trellis quant\n");
445 if((s->flags & CODEC_FLAG_QP_RD) && s->avctx->mb_decision != FF_MB_DECISION_RD){
446 av_log(avctx, AV_LOG_ERROR, "QP RD needs mbd=2\n");
450 if(s->avctx->scenechange_threshold < 1000000000 && (s->flags & CODEC_FLAG_CLOSED_GOP)){
451 av_log(avctx, AV_LOG_ERROR, "closed gop with scene change detection are not supported yet, set threshold to 1000000000\n");
455 if((s->flags2 & CODEC_FLAG2_INTRA_VLC) && s->codec_id != CODEC_ID_MPEG2VIDEO){
456 av_log(avctx, AV_LOG_ERROR, "intra vlc table not supported by codec\n");
460 if(s->flags & CODEC_FLAG_LOW_DELAY){
461 if (s->codec_id != CODEC_ID_MPEG2VIDEO){
462 av_log(avctx, AV_LOG_ERROR, "low delay forcing is only available for mpeg2\n");
465 if (s->max_b_frames != 0){
466 av_log(avctx, AV_LOG_ERROR, "b frames cannot be used with low delay\n");
471 if(s->q_scale_type == 1){
472 #if FF_API_MPEGVIDEO_GLOBAL_OPTS
473 if(s->codec_id != CODEC_ID_MPEG2VIDEO){
474 av_log(avctx, AV_LOG_ERROR, "non linear quant is only available for mpeg2\n");
478 if(avctx->qmax > 12){
479 av_log(avctx, AV_LOG_ERROR, "non linear quant only supports qmax <= 12 currently\n");
484 if(s->avctx->thread_count > 1 && s->codec_id != CODEC_ID_MPEG4
485 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO
486 && (s->codec_id != CODEC_ID_H263P || !(s->flags & CODEC_FLAG_H263P_SLICE_STRUCT))){
487 av_log(avctx, AV_LOG_ERROR, "multi threaded encoding not supported by codec\n");
491 if(s->avctx->thread_count < 1){
492 av_log(avctx, AV_LOG_ERROR, "automatic thread number detection not supported by codec, patch welcome\n");
496 if(s->avctx->thread_count > 1)
499 if(!avctx->time_base.den || !avctx->time_base.num){
500 av_log(avctx, AV_LOG_ERROR, "framerate not set\n");
504 i= (INT_MAX/2+128)>>8;
505 if(avctx->me_threshold >= i){
506 av_log(avctx, AV_LOG_ERROR, "me_threshold too large, max is %d\n", i - 1);
509 if(avctx->mb_threshold >= i){
510 av_log(avctx, AV_LOG_ERROR, "mb_threshold too large, max is %d\n", i - 1);
514 if(avctx->b_frame_strategy && (avctx->flags&CODEC_FLAG_PASS2)){
515 av_log(avctx, AV_LOG_INFO, "notice: b_frame_strategy only affects the first pass\n");
516 avctx->b_frame_strategy = 0;
519 i= av_gcd(avctx->time_base.den, avctx->time_base.num);
521 av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n");
522 avctx->time_base.den /= i;
523 avctx->time_base.num /= i;
527 if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO || s->codec_id==CODEC_ID_MJPEG){
528 s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x
529 s->inter_quant_bias= 0;
531 s->intra_quant_bias=0;
532 s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x
535 if(avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
536 s->intra_quant_bias= avctx->intra_quant_bias;
537 if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)
538 s->inter_quant_bias= avctx->inter_quant_bias;
540 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift);
542 if(avctx->codec_id == CODEC_ID_MPEG4 && s->avctx->time_base.den > (1<<16)-1){
543 av_log(avctx, AV_LOG_ERROR, "timebase %d/%d not supported by MPEG 4 standard, "
544 "the maximum admitted value for the timebase denominator is %d\n",
545 s->avctx->time_base.num, s->avctx->time_base.den, (1<<16)-1);
548 s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1;
550 switch(avctx->codec->id) {
551 case CODEC_ID_MPEG1VIDEO:
552 s->out_format = FMT_MPEG1;
553 s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
554 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
556 case CODEC_ID_MPEG2VIDEO:
557 s->out_format = FMT_MPEG1;
558 s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
559 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
564 s->out_format = FMT_MJPEG;
565 s->intra_only = 1; /* force intra only for jpeg */
566 if(avctx->codec->id == CODEC_ID_LJPEG && avctx->pix_fmt == PIX_FMT_BGRA){
567 s->mjpeg_vsample[0] = s->mjpeg_hsample[0] =
568 s->mjpeg_vsample[1] = s->mjpeg_hsample[1] =
569 s->mjpeg_vsample[2] = s->mjpeg_hsample[2] = 1;
571 s->mjpeg_vsample[0] = 2;
572 s->mjpeg_vsample[1] = 2>>chroma_v_shift;
573 s->mjpeg_vsample[2] = 2>>chroma_v_shift;
574 s->mjpeg_hsample[0] = 2;
575 s->mjpeg_hsample[1] = 2>>chroma_h_shift;
576 s->mjpeg_hsample[2] = 2>>chroma_h_shift;
578 if (!(CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER)
579 || ff_mjpeg_encode_init(s) < 0)
585 if (!CONFIG_H261_ENCODER) return -1;
586 if (ff_h261_get_picture_format(s->width, s->height) < 0) {
587 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);
590 s->out_format = FMT_H261;
595 if (!CONFIG_H263_ENCODER) return -1;
596 if (ff_match_2uint16(h263_format, FF_ARRAY_ELEMS(h263_format), s->width, s->height) == 8) {
597 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);
600 s->out_format = FMT_H263;
601 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
606 s->out_format = FMT_H263;
609 #if FF_API_MPEGVIDEO_GLOBAL_OPTS
610 if (avctx->flags & CODEC_FLAG_H263P_UMV)
612 if (avctx->flags & CODEC_FLAG_H263P_AIV)
613 s->alt_inter_vlc = 1;
615 s->h263_aic= (avctx->flags & CODEC_FLAG_AC_PRED) ? 1:0;
616 s->modified_quant= s->h263_aic;
617 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
618 s->loop_filter= (avctx->flags & CODEC_FLAG_LOOP_FILTER) ? 1:0;
619 s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
620 s->h263_slice_structured= (s->flags & CODEC_FLAG_H263P_SLICE_STRUCT) ? 1:0;
623 /* These are just to be sure */
628 s->out_format = FMT_H263;
629 s->h263_flv = 2; /* format = 1; 11-bit codes */
630 s->unrestricted_mv = 1;
631 s->rtp_mode=0; /* don't allow GOB */
636 s->out_format = FMT_H263;
641 s->out_format = FMT_H263;
648 s->unrestricted_mv= 0;
651 s->out_format = FMT_H263;
653 s->unrestricted_mv = 1;
654 s->low_delay= s->max_b_frames ? 0 : 1;
655 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
657 case CODEC_ID_MSMPEG4V2:
658 s->out_format = FMT_H263;
660 s->unrestricted_mv = 1;
661 s->msmpeg4_version= 2;
665 case CODEC_ID_MSMPEG4V3:
666 s->out_format = FMT_H263;
668 s->unrestricted_mv = 1;
669 s->msmpeg4_version= 3;
670 s->flipflop_rounding=1;
675 s->out_format = FMT_H263;
677 s->unrestricted_mv = 1;
678 s->msmpeg4_version= 4;
679 s->flipflop_rounding=1;
684 s->out_format = FMT_H263;
686 s->unrestricted_mv = 1;
687 s->msmpeg4_version= 5;
688 s->flipflop_rounding=1;
696 avctx->has_b_frames= !s->low_delay;
700 s->progressive_frame=
701 s->progressive_sequence= !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN));
704 if (MPV_common_init(s) < 0)
708 s->dct_quantize = dct_quantize_c;
710 s->denoise_dct = denoise_dct_c;
711 s->fast_dct_quantize = s->dct_quantize;
713 s->dct_quantize = dct_quantize_trellis_c;
715 if((CONFIG_H263P_ENCODER || CONFIG_RV20_ENCODER) && s->modified_quant)
716 s->chroma_qscale_table= ff_h263_chroma_qscale_table;
718 s->quant_precision=5;
720 ff_set_cmp(&s->dsp, s->dsp.ildct_cmp, s->avctx->ildct_cmp);
721 ff_set_cmp(&s->dsp, s->dsp.frame_skip_cmp, s->avctx->frame_skip_cmp);
723 if (CONFIG_H261_ENCODER && s->out_format == FMT_H261)
724 ff_h261_encode_init(s);
725 if (CONFIG_H263_ENCODER && s->out_format == FMT_H263)
727 if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version)
728 ff_msmpeg4_encode_init(s);
729 if ((CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
730 && s->out_format == FMT_MPEG1)
731 ff_mpeg1_encode_init(s);
735 int j= s->dsp.idct_permutation[i];
736 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){
737 s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
738 s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
739 }else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){
741 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
744 s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
745 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
747 if(s->avctx->intra_matrix)
748 s->intra_matrix[j] = s->avctx->intra_matrix[i];
749 if(s->avctx->inter_matrix)
750 s->inter_matrix[j] = s->avctx->inter_matrix[i];
753 /* precompute matrix */
754 /* for mjpeg, we do include qscale in the matrix */
755 if (s->out_format != FMT_MJPEG) {
756 ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
757 s->intra_matrix, s->intra_quant_bias, avctx->qmin, 31, 1);
758 ff_convert_matrix(&s->dsp, s->q_inter_matrix, s->q_inter_matrix16,
759 s->inter_matrix, s->inter_quant_bias, avctx->qmin, 31, 0);
762 if(ff_rate_control_init(s) < 0)
768 av_cold int MPV_encode_end(AVCodecContext *avctx)
770 MpegEncContext *s = avctx->priv_data;
772 ff_rate_control_uninit(s);
775 if ((CONFIG_MJPEG_ENCODER || CONFIG_LJPEG_ENCODER) && s->out_format == FMT_MJPEG)
776 ff_mjpeg_encode_close(s);
778 av_freep(&avctx->extradata);
783 static int get_sae(uint8_t *src, int ref, int stride){
789 acc+= FFABS(src[x+y*stride] - ref);
796 static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride){
803 for(y=0; y<h; y+=16){
804 for(x=0; x<w; x+=16){
805 int offset= x + y*stride;
806 int sad = s->dsp.sad[0](NULL, src + offset, ref + offset, stride, 16);
807 int mean= (s->dsp.pix_sum(src + offset, stride) + 128)>>8;
808 int sae = get_sae(src + offset, mean, stride);
810 acc+= sae + 500 < sad;
817 static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
821 const int encoding_delay= s->max_b_frames;
826 pic_arg->display_picture_number= s->input_picture_number++;
828 if(pts != AV_NOPTS_VALUE){
829 if(s->user_specified_pts != AV_NOPTS_VALUE){
831 int64_t last= s->user_specified_pts;
834 av_log(s->avctx, AV_LOG_ERROR, "Error, Invalid timestamp=%"PRId64", last=%"PRId64"\n", pts, s->user_specified_pts);
838 s->user_specified_pts= pts;
840 if(s->user_specified_pts != AV_NOPTS_VALUE){
841 s->user_specified_pts=
842 pts= s->user_specified_pts + 1;
843 av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%"PRId64")\n", pts);
845 pts= pic_arg->display_picture_number;
851 if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0;
852 if(pic_arg->linesize[0] != s->linesize) direct=0;
853 if(pic_arg->linesize[1] != s->uvlinesize) direct=0;
854 if(pic_arg->linesize[2] != s->uvlinesize) direct=0;
856 // av_log(AV_LOG_DEBUG, "%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize);
859 i= ff_find_unused_picture(s, 1);
861 pic= (AVFrame*)&s->picture[i];
865 pic->data[i]= pic_arg->data[i];
866 pic->linesize[i]= pic_arg->linesize[i];
868 if(ff_alloc_picture(s, (Picture*)pic, 1) < 0){
872 i= ff_find_unused_picture(s, 0);
874 pic= (AVFrame*)&s->picture[i];
877 if(ff_alloc_picture(s, (Picture*)pic, 0) < 0){
881 if( pic->data[0] + INPLACE_OFFSET == pic_arg->data[0]
882 && pic->data[1] + INPLACE_OFFSET == pic_arg->data[1]
883 && pic->data[2] + INPLACE_OFFSET == pic_arg->data[2]){
886 int h_chroma_shift, v_chroma_shift;
887 avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
890 int src_stride= pic_arg->linesize[i];
891 int dst_stride= i ? s->uvlinesize : s->linesize;
892 int h_shift= i ? h_chroma_shift : 0;
893 int v_shift= i ? v_chroma_shift : 0;
894 int w= s->width >>h_shift;
895 int h= s->height>>v_shift;
896 uint8_t *src= pic_arg->data[i];
897 uint8_t *dst= pic->data[i];
899 if(!s->avctx->rc_buffer_size)
900 dst +=INPLACE_OFFSET;
902 if(src_stride==dst_stride)
903 memcpy(dst, src, src_stride*h);
914 copy_picture_attributes(s, pic, pic_arg);
915 pic->pts= pts; //we set this here to avoid modifiying pic_arg
918 /* shift buffer entries */
919 for(i=1; i<MAX_PICTURE_COUNT /*s->encoding_delay+1*/; i++)
920 s->input_picture[i-1]= s->input_picture[i];
922 s->input_picture[encoding_delay]= (Picture*)pic;
927 static int skip_check(MpegEncContext *s, Picture *p, Picture *ref){
932 for(plane=0; plane<3; plane++){
933 const int stride = p->f.linesize[plane];
934 const int bw= plane ? 1 : 2;
935 for(y=0; y<s->mb_height*bw; y++){
936 for(x=0; x<s->mb_width*bw; x++){
937 int off = p->f.type == FF_BUFFER_TYPE_SHARED ? 0: 16;
938 int v = s->dsp.frame_skip_cmp[1](s, p->f.data[plane] + 8*(x + y*stride)+off, ref->f.data[plane] + 8*(x + y*stride), stride, 8);
940 switch(s->avctx->frame_skip_exp){
941 case 0: score= FFMAX(score, v); break;
942 case 1: score+= FFABS(v);break;
943 case 2: score+= v*v;break;
944 case 3: score64+= FFABS(v*v*(int64_t)v);break;
945 case 4: score64+= v*v*(int64_t)(v*v);break;
951 if(score) score64= score;
953 if(score64 < s->avctx->frame_skip_threshold)
955 if(score64 < ((s->avctx->frame_skip_factor * (int64_t)s->lambda)>>8))
960 static int estimate_best_b_count(MpegEncContext *s){
961 AVCodec *codec= avcodec_find_encoder(s->avctx->codec_id);
962 AVCodecContext *c = avcodec_alloc_context3(NULL);
963 AVFrame input[FF_MAX_B_FRAMES+2];
964 const int scale= s->avctx->brd_scale;
965 int i, j, out_size, p_lambda, b_lambda, lambda2;
966 int outbuf_size= s->width * s->height; //FIXME
967 uint8_t *outbuf= av_malloc(outbuf_size);
968 int64_t best_rd= INT64_MAX;
969 int best_b_count= -1;
971 assert(scale>=0 && scale <=3);
974 p_lambda= s->last_lambda_for[AV_PICTURE_TYPE_P]; //s->next_picture_ptr->quality;
975 b_lambda= s->last_lambda_for[AV_PICTURE_TYPE_B]; //p_lambda *FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset;
976 if(!b_lambda) b_lambda= p_lambda; //FIXME we should do this somewhere else
977 lambda2= (b_lambda*b_lambda + (1<<FF_LAMBDA_SHIFT)/2 ) >> FF_LAMBDA_SHIFT;
979 c->width = s->width >> scale;
980 c->height= s->height>> scale;
981 c->flags= CODEC_FLAG_QSCALE | CODEC_FLAG_PSNR | CODEC_FLAG_INPUT_PRESERVED /*| CODEC_FLAG_EMU_EDGE*/;
982 c->flags|= s->avctx->flags & CODEC_FLAG_QPEL;
983 c->mb_decision= s->avctx->mb_decision;
984 c->me_cmp= s->avctx->me_cmp;
985 c->mb_cmp= s->avctx->mb_cmp;
986 c->me_sub_cmp= s->avctx->me_sub_cmp;
987 c->pix_fmt = PIX_FMT_YUV420P;
988 c->time_base= s->avctx->time_base;
989 c->max_b_frames= s->max_b_frames;
991 if (avcodec_open2(c, codec, NULL) < 0)
994 for(i=0; i<s->max_b_frames+2; i++){
995 int ysize= c->width*c->height;
996 int csize= (c->width/2)*(c->height/2);
997 Picture pre_input, *pre_input_ptr= i ? s->input_picture[i-1] : s->next_picture_ptr;
999 avcodec_get_frame_defaults(&input[i]);
1000 input[i].data[0]= av_malloc(ysize + 2*csize);
1001 input[i].data[1]= input[i].data[0] + ysize;
1002 input[i].data[2]= input[i].data[1] + csize;
1003 input[i].linesize[0]= c->width;
1004 input[i].linesize[1]=
1005 input[i].linesize[2]= c->width/2;
1007 if(pre_input_ptr && (!i || s->input_picture[i-1])) {
1008 pre_input= *pre_input_ptr;
1010 if (pre_input.f.type != FF_BUFFER_TYPE_SHARED && i) {
1011 pre_input.f.data[0] += INPLACE_OFFSET;
1012 pre_input.f.data[1] += INPLACE_OFFSET;
1013 pre_input.f.data[2] += INPLACE_OFFSET;
1016 s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0], pre_input.f.data[0], pre_input.f.linesize[0], c->width, c->height);
1017 s->dsp.shrink[scale](input[i].data[1], input[i].linesize[1], pre_input.f.data[1], pre_input.f.linesize[1], c->width >> 1, c->height >> 1);
1018 s->dsp.shrink[scale](input[i].data[2], input[i].linesize[2], pre_input.f.data[2], pre_input.f.linesize[2], c->width >> 1, c->height >> 1);
1022 for(j=0; j<s->max_b_frames+1; j++){
1025 if(!s->input_picture[j])
1028 c->error[0]= c->error[1]= c->error[2]= 0;
1030 input[0].pict_type= AV_PICTURE_TYPE_I;
1031 input[0].quality= 1 * FF_QP2LAMBDA;
1032 out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[0]);
1033 // rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT;
1035 for(i=0; i<s->max_b_frames+1; i++){
1036 int is_p= i % (j+1) == j || i==s->max_b_frames;
1038 input[i+1].pict_type= is_p ? AV_PICTURE_TYPE_P : AV_PICTURE_TYPE_B;
1039 input[i+1].quality= is_p ? p_lambda : b_lambda;
1040 out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[i+1]);
1041 rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1044 /* get the delayed frames */
1046 out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);
1047 rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1050 rd += c->error[0] + c->error[1] + c->error[2];
1062 for(i=0; i<s->max_b_frames+2; i++){
1063 av_freep(&input[i].data[0]);
1066 return best_b_count;
1069 static int select_input_picture(MpegEncContext *s){
1072 for(i=1; i<MAX_PICTURE_COUNT; i++)
1073 s->reordered_input_picture[i-1]= s->reordered_input_picture[i];
1074 s->reordered_input_picture[MAX_PICTURE_COUNT-1]= NULL;
1076 /* set next picture type & ordering */
1077 if(s->reordered_input_picture[0]==NULL && s->input_picture[0]){
1078 if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture_ptr==NULL || s->intra_only){
1079 s->reordered_input_picture[0]= s->input_picture[0];
1080 s->reordered_input_picture[0]->f.pict_type = AV_PICTURE_TYPE_I;
1081 s->reordered_input_picture[0]->f.coded_picture_number = s->coded_picture_number++;
1085 if(s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor){
1086 if(s->picture_in_gop_number < s->gop_size && skip_check(s, s->input_picture[0], s->next_picture_ptr)){
1087 //FIXME check that te gop check above is +-1 correct
1088 //av_log(NULL, AV_LOG_DEBUG, "skip %p %"PRId64"\n", s->input_picture[0]->f.data[0], s->input_picture[0]->pts);
1090 if (s->input_picture[0]->f.type == FF_BUFFER_TYPE_SHARED) {
1092 s->input_picture[0]->f.data[i] = NULL;
1093 s->input_picture[0]->f.type = 0;
1095 assert( s->input_picture[0]->type==FF_BUFFER_TYPE_USER
1096 || s->input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1098 s->avctx->release_buffer(s->avctx, (AVFrame*)s->input_picture[0]);
1102 ff_vbv_update(s, 0);
1108 if(s->flags&CODEC_FLAG_PASS2){
1109 for(i=0; i<s->max_b_frames+1; i++){
1110 int pict_num = s->input_picture[0]->f.display_picture_number + i;
1112 if(pict_num >= s->rc_context.num_entries)
1114 if(!s->input_picture[i]){
1115 s->rc_context.entry[pict_num-1].new_pict_type = AV_PICTURE_TYPE_P;
1119 s->input_picture[i]->f.pict_type =
1120 s->rc_context.entry[pict_num].new_pict_type;
1124 if(s->avctx->b_frame_strategy==0){
1125 b_frames= s->max_b_frames;
1126 while(b_frames && !s->input_picture[b_frames]) b_frames--;
1127 }else if(s->avctx->b_frame_strategy==1){
1128 for(i=1; i<s->max_b_frames+1; i++){
1129 if(s->input_picture[i] && s->input_picture[i]->b_frame_score==0){
1130 s->input_picture[i]->b_frame_score=
1131 get_intra_count(s, s->input_picture[i ]->f.data[0],
1132 s->input_picture[i-1]->f.data[0], s->linesize) + 1;
1135 for(i=0; i<s->max_b_frames+1; i++){
1136 if(s->input_picture[i]==NULL || s->input_picture[i]->b_frame_score - 1 > s->mb_num/s->avctx->b_sensitivity) break;
1139 b_frames= FFMAX(0, i-1);
1142 for(i=0; i<b_frames+1; i++){
1143 s->input_picture[i]->b_frame_score=0;
1145 }else if(s->avctx->b_frame_strategy==2){
1146 b_frames= estimate_best_b_count(s);
1148 av_log(s->avctx, AV_LOG_ERROR, "illegal b frame strategy\n");
1153 //static int b_count=0;
1154 //b_count+= b_frames;
1155 //av_log(s->avctx, AV_LOG_DEBUG, "b_frames: %d\n", b_count);
1157 for(i= b_frames - 1; i>=0; i--){
1158 int type = s->input_picture[i]->f.pict_type;
1159 if(type && type != AV_PICTURE_TYPE_B)
1162 if (s->input_picture[b_frames]->f.pict_type == AV_PICTURE_TYPE_B && b_frames == s->max_b_frames){
1163 av_log(s->avctx, AV_LOG_ERROR, "warning, too many b frames in a row\n");
1166 if(s->picture_in_gop_number + b_frames >= s->gop_size){
1167 if((s->flags2 & CODEC_FLAG2_STRICT_GOP) && s->gop_size > s->picture_in_gop_number){
1168 b_frames= s->gop_size - s->picture_in_gop_number - 1;
1170 if(s->flags & CODEC_FLAG_CLOSED_GOP)
1172 s->input_picture[b_frames]->f.pict_type = AV_PICTURE_TYPE_I;
1176 if( (s->flags & CODEC_FLAG_CLOSED_GOP)
1178 && s->input_picture[b_frames]->f.pict_type== AV_PICTURE_TYPE_I)
1181 s->reordered_input_picture[0]= s->input_picture[b_frames];
1182 if (s->reordered_input_picture[0]->f.pict_type != AV_PICTURE_TYPE_I)
1183 s->reordered_input_picture[0]->f.pict_type = AV_PICTURE_TYPE_P;
1184 s->reordered_input_picture[0]->f.coded_picture_number = s->coded_picture_number++;
1185 for(i=0; i<b_frames; i++){
1186 s->reordered_input_picture[i + 1] = s->input_picture[i];
1187 s->reordered_input_picture[i + 1]->f.pict_type = AV_PICTURE_TYPE_B;
1188 s->reordered_input_picture[i + 1]->f.coded_picture_number = s->coded_picture_number++;
1193 if(s->reordered_input_picture[0]){
1194 s->reordered_input_picture[0]->f.reference = s->reordered_input_picture[0]->f.pict_type!=AV_PICTURE_TYPE_B ? 3 : 0;
1196 ff_copy_picture(&s->new_picture, s->reordered_input_picture[0]);
1198 if (s->reordered_input_picture[0]->f.type == FF_BUFFER_TYPE_SHARED || s->avctx->rc_buffer_size) {
1199 // input is a shared pix, so we can't modifiy it -> alloc a new one & ensure that the shared one is reuseable
1201 int i= ff_find_unused_picture(s, 0);
1202 Picture *pic= &s->picture[i];
1204 pic->f.reference = s->reordered_input_picture[0]->f.reference;
1205 if(ff_alloc_picture(s, pic, 0) < 0){
1209 /* mark us unused / free shared pic */
1210 if (s->reordered_input_picture[0]->f.type == FF_BUFFER_TYPE_INTERNAL)
1211 s->avctx->release_buffer(s->avctx, (AVFrame*)s->reordered_input_picture[0]);
1213 s->reordered_input_picture[0]->f.data[i] = NULL;
1214 s->reordered_input_picture[0]->f.type = 0;
1216 copy_picture_attributes(s, (AVFrame*)pic, (AVFrame*)s->reordered_input_picture[0]);
1218 s->current_picture_ptr= pic;
1220 // input is not a shared pix -> reuse buffer for current_pix
1222 assert( s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
1223 || s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1225 s->current_picture_ptr= s->reordered_input_picture[0];
1227 s->new_picture.f.data[i] += INPLACE_OFFSET;
1230 ff_copy_picture(&s->current_picture, s->current_picture_ptr);
1232 s->picture_number = s->new_picture.f.display_picture_number;
1233 //printf("dpn:%d\n", s->picture_number);
1235 memset(&s->new_picture, 0, sizeof(Picture));
1240 int MPV_encode_picture(AVCodecContext *avctx,
1241 unsigned char *buf, int buf_size, void *data)
1243 MpegEncContext *s = avctx->priv_data;
1244 AVFrame *pic_arg = data;
1245 int i, stuffing_count, context_count = avctx->thread_count;
1247 for(i=0; i<context_count; i++){
1248 int start_y= s->thread_context[i]->start_mb_y;
1249 int end_y= s->thread_context[i]-> end_mb_y;
1250 int h= s->mb_height;
1251 uint8_t *start= buf + (size_t)(((int64_t) buf_size)*start_y/h);
1252 uint8_t *end = buf + (size_t)(((int64_t) buf_size)* end_y/h);
1254 init_put_bits(&s->thread_context[i]->pb, start, end - start);
1257 s->picture_in_gop_number++;
1259 if(load_input_picture(s, pic_arg) < 0)
1262 if(select_input_picture(s) < 0){
1267 if (s->new_picture.f.data[0]) {
1268 s->pict_type = s->new_picture.f.pict_type;
1270 //printf("qs:%f %f %d\n", s->new_picture.quality, s->current_picture.quality, s->qscale);
1271 MPV_frame_start(s, avctx);
1273 if (encode_picture(s, s->picture_number) < 0)
1276 avctx->header_bits = s->header_bits;
1277 avctx->mv_bits = s->mv_bits;
1278 avctx->misc_bits = s->misc_bits;
1279 avctx->i_tex_bits = s->i_tex_bits;
1280 avctx->p_tex_bits = s->p_tex_bits;
1281 avctx->i_count = s->i_count;
1282 avctx->p_count = s->mb_num - s->i_count - s->skip_count; //FIXME f/b_count in avctx
1283 avctx->skip_count = s->skip_count;
1287 if (CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG)
1288 ff_mjpeg_encode_picture_trailer(s);
1290 if(avctx->rc_buffer_size){
1291 RateControlContext *rcc= &s->rc_context;
1292 int max_size= rcc->buffer_index * avctx->rc_max_available_vbv_use;
1294 if(put_bits_count(&s->pb) > max_size && s->lambda < s->avctx->lmax){
1295 s->next_lambda= FFMAX(s->lambda+1, s->lambda*(s->qscale+1) / s->qscale);
1296 if(s->adaptive_quant){
1298 for(i=0; i<s->mb_height*s->mb_stride; i++)
1299 s->lambda_table[i]= FFMAX(s->lambda_table[i]+1, s->lambda_table[i]*(s->qscale+1) / s->qscale);
1301 s->mb_skipped = 0; //done in MPV_frame_start()
1302 if(s->pict_type==AV_PICTURE_TYPE_P){ //done in encode_picture() so we must undo it
1303 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
1304 s->no_rounding ^= 1;
1306 if(s->pict_type!=AV_PICTURE_TYPE_B){
1307 s->time_base= s->last_time_base;
1308 s->last_non_b_time= s->time - s->pp_time;
1310 // av_log(NULL, AV_LOG_ERROR, "R:%d ", s->next_lambda);
1311 for(i=0; i<context_count; i++){
1312 PutBitContext *pb= &s->thread_context[i]->pb;
1313 init_put_bits(pb, pb->buf, pb->buf_end - pb->buf);
1318 assert(s->avctx->rc_max_rate);
1321 if(s->flags&CODEC_FLAG_PASS1)
1322 ff_write_pass1_stats(s);
1325 s->current_picture_ptr->f.error[i] = s->current_picture.f.error[i];
1326 avctx->error[i] += s->current_picture_ptr->f.error[i];
1329 if(s->flags&CODEC_FLAG_PASS1)
1330 assert(avctx->header_bits + avctx->mv_bits + avctx->misc_bits + avctx->i_tex_bits + avctx->p_tex_bits == put_bits_count(&s->pb));
1331 flush_put_bits(&s->pb);
1332 s->frame_bits = put_bits_count(&s->pb);
1334 stuffing_count= ff_vbv_update(s, s->frame_bits);
1336 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < stuffing_count + 50){
1337 av_log(s->avctx, AV_LOG_ERROR, "stuffing too large\n");
1341 switch(s->codec_id){
1342 case CODEC_ID_MPEG1VIDEO:
1343 case CODEC_ID_MPEG2VIDEO:
1344 while(stuffing_count--){
1345 put_bits(&s->pb, 8, 0);
1348 case CODEC_ID_MPEG4:
1349 put_bits(&s->pb, 16, 0);
1350 put_bits(&s->pb, 16, 0x1C3);
1351 stuffing_count -= 4;
1352 while(stuffing_count--){
1353 put_bits(&s->pb, 8, 0xFF);
1357 av_log(s->avctx, AV_LOG_ERROR, "vbv buffer overflow\n");
1359 flush_put_bits(&s->pb);
1360 s->frame_bits = put_bits_count(&s->pb);
1363 /* update mpeg1/2 vbv_delay for CBR */
1364 if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && s->out_format == FMT_MPEG1
1365 && 90000LL * (avctx->rc_buffer_size-1) <= s->avctx->rc_max_rate*0xFFFFLL){
1366 int vbv_delay, min_delay;
1367 double inbits = s->avctx->rc_max_rate*av_q2d(s->avctx->time_base);
1368 int minbits= s->frame_bits - 8*(s->vbv_delay_ptr - s->pb.buf - 1);
1369 double bits = s->rc_context.buffer_index + minbits - inbits;
1372 av_log(s->avctx, AV_LOG_ERROR, "Internal error, negative bits\n");
1374 assert(s->repeat_first_field==0);
1376 vbv_delay= bits * 90000 / s->avctx->rc_max_rate;
1377 min_delay= (minbits * 90000LL + s->avctx->rc_max_rate - 1)/ s->avctx->rc_max_rate;
1379 vbv_delay= FFMAX(vbv_delay, min_delay);
1381 assert(vbv_delay < 0xFFFF);
1383 s->vbv_delay_ptr[0] &= 0xF8;
1384 s->vbv_delay_ptr[0] |= vbv_delay>>13;
1385 s->vbv_delay_ptr[1] = vbv_delay>>5;
1386 s->vbv_delay_ptr[2] &= 0x07;
1387 s->vbv_delay_ptr[2] |= vbv_delay<<3;
1388 avctx->vbv_delay = vbv_delay*300;
1390 s->total_bits += s->frame_bits;
1391 avctx->frame_bits = s->frame_bits;
1393 assert((put_bits_ptr(&s->pb) == s->pb.buf));
1396 assert((s->frame_bits&7)==0);
1398 return s->frame_bits/8;
1401 static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold)
1403 static const char tab[64]=
1415 DCTELEM *block= s->block[n];
1416 const int last_index= s->block_last_index[n];
1421 threshold= -threshold;
1425 /* Are all we could set to zero already zero? */
1426 if(last_index<=skip_dc - 1) return;
1428 for(i=0; i<=last_index; i++){
1429 const int j = s->intra_scantable.permutated[i];
1430 const int level = FFABS(block[j]);
1432 if(skip_dc && i==0) continue;
1441 if(score >= threshold) return;
1442 for(i=skip_dc; i<=last_index; i++){
1443 const int j = s->intra_scantable.permutated[i];
1446 if(block[0]) s->block_last_index[n]= 0;
1447 else s->block_last_index[n]= -1;
1450 static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1453 const int maxlevel= s->max_qcoeff;
1454 const int minlevel= s->min_qcoeff;
1458 i=1; //skip clipping of intra dc
1462 for(;i<=last_index; i++){
1463 const int j= s->intra_scantable.permutated[i];
1464 int level = block[j];
1466 if (level>maxlevel){
1469 }else if(level<minlevel){
1477 if(overflow && s->avctx->mb_decision == FF_MB_DECISION_SIMPLE)
1478 av_log(s->avctx, AV_LOG_INFO, "warning, clipping %d dct coefficients to %d..%d\n", overflow, minlevel, maxlevel);
1481 static void get_visual_weight(int16_t *weight, uint8_t *ptr, int stride){
1491 for(y2= FFMAX(y-1, 0); y2 < FFMIN(8, y+2); y2++){
1492 for(x2= FFMAX(x-1, 0); x2 < FFMIN(8, x+2); x2++){
1493 int v= ptr[x2 + y2*stride];
1499 weight[x + 8*y]= (36*ff_sqrt(count*sqr - sum*sum)) / count;
1504 static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count)
1506 int16_t weight[8][64];
1507 DCTELEM orig[8][64];
1508 const int mb_x= s->mb_x;
1509 const int mb_y= s->mb_y;
1512 int dct_offset = s->linesize*8; //default for progressive frames
1513 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1516 for(i=0; i<mb_block_count; i++) skip_dct[i]=s->skipdct;
1518 if(s->adaptive_quant){
1519 const int last_qp= s->qscale;
1520 const int mb_xy= mb_x + mb_y*s->mb_stride;
1522 s->lambda= s->lambda_table[mb_xy];
1525 if(!(s->flags&CODEC_FLAG_QP_RD)){
1526 s->qscale = s->current_picture_ptr->f.qscale_table[mb_xy];
1527 s->dquant= s->qscale - last_qp;
1529 if(s->out_format==FMT_H263){
1530 s->dquant= av_clip(s->dquant, -2, 2);
1532 if(s->codec_id==CODEC_ID_MPEG4){
1534 if(s->pict_type == AV_PICTURE_TYPE_B){
1535 if(s->dquant&1 || s->mv_dir&MV_DIRECT)
1538 if(s->mv_type==MV_TYPE_8X8)
1544 ff_set_qscale(s, last_qp + s->dquant);
1545 }else if(s->flags&CODEC_FLAG_QP_RD)
1546 ff_set_qscale(s, s->qscale + s->dquant);
1548 wrap_y = s->linesize;
1549 wrap_c = s->uvlinesize;
1550 ptr_y = s->new_picture.f.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
1551 ptr_cb = s->new_picture.f.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1552 ptr_cr = s->new_picture.f.data[2] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1554 if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
1555 uint8_t *ebuf= s->edge_emu_buffer + 32;
1556 s->dsp.emulated_edge_mc(ebuf , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width , s->height);
1558 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);
1559 ptr_cb= ebuf+18*wrap_y;
1560 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);
1561 ptr_cr= ebuf+18*wrap_y+8;
1565 if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1566 int progressive_score, interlaced_score;
1568 s->interlaced_dct=0;
1569 progressive_score= s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y, 8)
1570 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y*8, NULL, wrap_y, 8) - 400;
1572 if(progressive_score > 0){
1573 interlaced_score = s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y*2, 8)
1574 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y , NULL, wrap_y*2, 8);
1575 if(progressive_score > interlaced_score){
1576 s->interlaced_dct=1;
1580 if (s->chroma_format == CHROMA_422)
1586 s->dsp.get_pixels(s->block[0], ptr_y , wrap_y);
1587 s->dsp.get_pixels(s->block[1], ptr_y + 8, wrap_y);
1588 s->dsp.get_pixels(s->block[2], ptr_y + dct_offset , wrap_y);
1589 s->dsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y);
1591 if(s->flags&CODEC_FLAG_GRAY){
1595 s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c);
1596 s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c);
1597 if(!s->chroma_y_shift){ /* 422 */
1598 s->dsp.get_pixels(s->block[6], ptr_cb + (dct_offset>>1), wrap_c);
1599 s->dsp.get_pixels(s->block[7], ptr_cr + (dct_offset>>1), wrap_c);
1603 op_pixels_func (*op_pix)[4];
1604 qpel_mc_func (*op_qpix)[16];
1605 uint8_t *dest_y, *dest_cb, *dest_cr;
1607 dest_y = s->dest[0];
1608 dest_cb = s->dest[1];
1609 dest_cr = s->dest[2];
1611 if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
1612 op_pix = s->dsp.put_pixels_tab;
1613 op_qpix= s->dsp.put_qpel_pixels_tab;
1615 op_pix = s->dsp.put_no_rnd_pixels_tab;
1616 op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab;
1619 if (s->mv_dir & MV_DIR_FORWARD) {
1620 MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f.data, op_pix, op_qpix);
1621 op_pix = s->dsp.avg_pixels_tab;
1622 op_qpix= s->dsp.avg_qpel_pixels_tab;
1624 if (s->mv_dir & MV_DIR_BACKWARD) {
1625 MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f.data, op_pix, op_qpix);
1628 if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1629 int progressive_score, interlaced_score;
1631 s->interlaced_dct=0;
1632 progressive_score= s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y, 8)
1633 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y*8, ptr_y + wrap_y*8, wrap_y, 8) - 400;
1635 if(s->avctx->ildct_cmp == FF_CMP_VSSE) progressive_score -= 400;
1637 if(progressive_score>0){
1638 interlaced_score = s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y*2, 8)
1639 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y , ptr_y + wrap_y , wrap_y*2, 8);
1641 if(progressive_score > interlaced_score){
1642 s->interlaced_dct=1;
1646 if (s->chroma_format == CHROMA_422)
1652 s->dsp.diff_pixels(s->block[0], ptr_y , dest_y , wrap_y);
1653 s->dsp.diff_pixels(s->block[1], ptr_y + 8, dest_y + 8, wrap_y);
1654 s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset , dest_y + dct_offset , wrap_y);
1655 s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y);
1657 if(s->flags&CODEC_FLAG_GRAY){
1661 s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
1662 s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
1663 if(!s->chroma_y_shift){ /* 422 */
1664 s->dsp.diff_pixels(s->block[6], ptr_cb + (dct_offset>>1), dest_cb + (dct_offset>>1), wrap_c);
1665 s->dsp.diff_pixels(s->block[7], ptr_cr + (dct_offset>>1), dest_cr + (dct_offset>>1), wrap_c);
1668 /* pre quantization */
1669 if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){
1671 if(s->dsp.sad[1](NULL, ptr_y , dest_y , wrap_y, 8) < 20*s->qscale) skip_dct[0]= 1;
1672 if(s->dsp.sad[1](NULL, ptr_y + 8, dest_y + 8, wrap_y, 8) < 20*s->qscale) skip_dct[1]= 1;
1673 if(s->dsp.sad[1](NULL, ptr_y +dct_offset , dest_y +dct_offset , wrap_y, 8) < 20*s->qscale) skip_dct[2]= 1;
1674 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;
1675 if(s->dsp.sad[1](NULL, ptr_cb , dest_cb , wrap_c, 8) < 20*s->qscale) skip_dct[4]= 1;
1676 if(s->dsp.sad[1](NULL, ptr_cr , dest_cr , wrap_c, 8) < 20*s->qscale) skip_dct[5]= 1;
1677 if(!s->chroma_y_shift){ /* 422 */
1678 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;
1679 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;
1684 if(s->avctx->quantizer_noise_shaping){
1685 if(!skip_dct[0]) get_visual_weight(weight[0], ptr_y , wrap_y);
1686 if(!skip_dct[1]) get_visual_weight(weight[1], ptr_y + 8, wrap_y);
1687 if(!skip_dct[2]) get_visual_weight(weight[2], ptr_y + dct_offset , wrap_y);
1688 if(!skip_dct[3]) get_visual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y);
1689 if(!skip_dct[4]) get_visual_weight(weight[4], ptr_cb , wrap_c);
1690 if(!skip_dct[5]) get_visual_weight(weight[5], ptr_cr , wrap_c);
1691 if(!s->chroma_y_shift){ /* 422 */
1692 if(!skip_dct[6]) get_visual_weight(weight[6], ptr_cb + (dct_offset>>1), wrap_c);
1693 if(!skip_dct[7]) get_visual_weight(weight[7], ptr_cr + (dct_offset>>1), wrap_c);
1695 memcpy(orig[0], s->block[0], sizeof(DCTELEM)*64*mb_block_count);
1698 /* DCT & quantize */
1699 assert(s->out_format!=FMT_MJPEG || s->qscale==8);
1701 for(i=0;i<mb_block_count;i++) {
1704 s->block_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow);
1705 // FIXME we could decide to change to quantizer instead of clipping
1706 // JS: I don't think that would be a good idea it could lower quality instead
1707 // of improve it. Just INTRADC clipping deserves changes in quantizer
1708 if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1710 s->block_last_index[i]= -1;
1712 if(s->avctx->quantizer_noise_shaping){
1713 for(i=0;i<mb_block_count;i++) {
1715 s->block_last_index[i] = dct_quantize_refine(s, s->block[i], weight[i], orig[i], i, s->qscale);
1720 if(s->luma_elim_threshold && !s->mb_intra)
1722 dct_single_coeff_elimination(s, i, s->luma_elim_threshold);
1723 if(s->chroma_elim_threshold && !s->mb_intra)
1724 for(i=4; i<mb_block_count; i++)
1725 dct_single_coeff_elimination(s, i, s->chroma_elim_threshold);
1727 if(s->flags & CODEC_FLAG_CBP_RD){
1728 for(i=0;i<mb_block_count;i++) {
1729 if(s->block_last_index[i] == -1)
1730 s->coded_score[i]= INT_MAX/256;
1735 if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
1736 s->block_last_index[4]=
1737 s->block_last_index[5]= 0;
1739 s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale;
1742 //non c quantize code returns incorrect block_last_index FIXME
1743 if(s->alternate_scan && s->dct_quantize != dct_quantize_c){
1744 for(i=0; i<mb_block_count; i++){
1746 if(s->block_last_index[i]>0){
1747 for(j=63; j>0; j--){
1748 if(s->block[i][ s->intra_scantable.permutated[j] ]) break;
1750 s->block_last_index[i]= j;
1755 /* huffman encode */
1756 switch(s->codec_id){ //FIXME funct ptr could be slightly faster
1757 case CODEC_ID_MPEG1VIDEO:
1758 case CODEC_ID_MPEG2VIDEO:
1759 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
1760 mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1762 case CODEC_ID_MPEG4:
1763 if (CONFIG_MPEG4_ENCODER)
1764 mpeg4_encode_mb(s, s->block, motion_x, motion_y);
1766 case CODEC_ID_MSMPEG4V2:
1767 case CODEC_ID_MSMPEG4V3:
1769 if (CONFIG_MSMPEG4_ENCODER)
1770 msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1773 if (CONFIG_WMV2_ENCODER)
1774 ff_wmv2_encode_mb(s, s->block, motion_x, motion_y);
1777 if (CONFIG_H261_ENCODER)
1778 ff_h261_encode_mb(s, s->block, motion_x, motion_y);
1781 case CODEC_ID_H263P:
1785 if (CONFIG_H263_ENCODER)
1786 h263_encode_mb(s, s->block, motion_x, motion_y);
1788 case CODEC_ID_MJPEG:
1789 if (CONFIG_MJPEG_ENCODER)
1790 ff_mjpeg_encode_mb(s, s->block);
1797 static av_always_inline void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
1799 if (s->chroma_format == CHROMA_420) encode_mb_internal(s, motion_x, motion_y, 8, 6);
1800 else encode_mb_internal(s, motion_x, motion_y, 16, 8);
1803 static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1806 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster than a loop?
1809 d->mb_skip_run= s->mb_skip_run;
1811 d->last_dc[i]= s->last_dc[i];
1814 d->mv_bits= s->mv_bits;
1815 d->i_tex_bits= s->i_tex_bits;
1816 d->p_tex_bits= s->p_tex_bits;
1817 d->i_count= s->i_count;
1818 d->f_count= s->f_count;
1819 d->b_count= s->b_count;
1820 d->skip_count= s->skip_count;
1821 d->misc_bits= s->misc_bits;
1825 d->qscale= s->qscale;
1826 d->dquant= s->dquant;
1828 d->esc3_level_length= s->esc3_level_length;
1831 static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1834 memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
1835 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster than a loop?
1838 d->mb_skip_run= s->mb_skip_run;
1840 d->last_dc[i]= s->last_dc[i];
1843 d->mv_bits= s->mv_bits;
1844 d->i_tex_bits= s->i_tex_bits;
1845 d->p_tex_bits= s->p_tex_bits;
1846 d->i_count= s->i_count;
1847 d->f_count= s->f_count;
1848 d->b_count= s->b_count;
1849 d->skip_count= s->skip_count;
1850 d->misc_bits= s->misc_bits;
1852 d->mb_intra= s->mb_intra;
1853 d->mb_skipped= s->mb_skipped;
1854 d->mv_type= s->mv_type;
1855 d->mv_dir= s->mv_dir;
1857 if(s->data_partitioning){
1859 d->tex_pb= s->tex_pb;
1863 d->block_last_index[i]= s->block_last_index[i];
1864 d->interlaced_dct= s->interlaced_dct;
1865 d->qscale= s->qscale;
1867 d->esc3_level_length= s->esc3_level_length;
1870 static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type,
1871 PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
1872 int *dmin, int *next_block, int motion_x, int motion_y)
1875 uint8_t *dest_backup[3];
1877 copy_context_before_encode(s, backup, type);
1879 s->block= s->blocks[*next_block];
1880 s->pb= pb[*next_block];
1881 if(s->data_partitioning){
1882 s->pb2 = pb2 [*next_block];
1883 s->tex_pb= tex_pb[*next_block];
1887 memcpy(dest_backup, s->dest, sizeof(s->dest));
1888 s->dest[0] = s->rd_scratchpad;
1889 s->dest[1] = s->rd_scratchpad + 16*s->linesize;
1890 s->dest[2] = s->rd_scratchpad + 16*s->linesize + 8;
1891 assert(s->linesize >= 32); //FIXME
1894 encode_mb(s, motion_x, motion_y);
1896 score= put_bits_count(&s->pb);
1897 if(s->data_partitioning){
1898 score+= put_bits_count(&s->pb2);
1899 score+= put_bits_count(&s->tex_pb);
1902 if(s->avctx->mb_decision == FF_MB_DECISION_RD){
1903 MPV_decode_mb(s, s->block);
1905 score *= s->lambda2;
1906 score += sse_mb(s) << FF_LAMBDA_SHIFT;
1910 memcpy(s->dest, dest_backup, sizeof(s->dest));
1917 copy_context_after_encode(best, s, type);
1921 static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){
1922 uint32_t *sq = ff_squareTbl + 256;
1927 return s->dsp.sse[0](NULL, src1, src2, stride, 16);
1928 else if(w==8 && h==8)
1929 return s->dsp.sse[1](NULL, src1, src2, stride, 8);
1933 acc+= sq[src1[x + y*stride] - src2[x + y*stride]];
1942 static int sse_mb(MpegEncContext *s){
1946 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
1947 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
1950 if(s->avctx->mb_cmp == FF_CMP_NSSE){
1951 return s->dsp.nsse[0](s, s->new_picture.f.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], s->linesize, 16)
1952 +s->dsp.nsse[1](s, s->new_picture.f.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], s->uvlinesize, 8)
1953 +s->dsp.nsse[1](s, s->new_picture.f.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], s->uvlinesize, 8);
1955 return s->dsp.sse[0](NULL, s->new_picture.f.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], s->linesize, 16)
1956 +s->dsp.sse[1](NULL, s->new_picture.f.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], s->uvlinesize, 8)
1957 +s->dsp.sse[1](NULL, s->new_picture.f.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], s->uvlinesize, 8);
1960 return sse(s, s->new_picture.f.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], w, h, s->linesize)
1961 +sse(s, s->new_picture.f.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], w>>1, h>>1, s->uvlinesize)
1962 +sse(s, s->new_picture.f.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], w>>1, h>>1, s->uvlinesize);
1965 static int pre_estimate_motion_thread(AVCodecContext *c, void *arg){
1966 MpegEncContext *s= *(void**)arg;
1970 s->me.dia_size= s->avctx->pre_dia_size;
1971 s->first_slice_line=1;
1972 for(s->mb_y= s->end_mb_y-1; s->mb_y >= s->start_mb_y; s->mb_y--) {
1973 for(s->mb_x=s->mb_width-1; s->mb_x >=0 ;s->mb_x--) {
1974 ff_pre_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1976 s->first_slice_line=0;
1984 static int estimate_motion_thread(AVCodecContext *c, void *arg){
1985 MpegEncContext *s= *(void**)arg;
1987 ff_check_alignment();
1989 s->me.dia_size= s->avctx->dia_size;
1990 s->first_slice_line=1;
1991 for(s->mb_y= s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
1992 s->mb_x=0; //for block init below
1993 ff_init_block_index(s);
1994 for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {
1995 s->block_index[0]+=2;
1996 s->block_index[1]+=2;
1997 s->block_index[2]+=2;
1998 s->block_index[3]+=2;
2000 /* compute motion vector & mb_type and store in context */
2001 if(s->pict_type==AV_PICTURE_TYPE_B)
2002 ff_estimate_b_frame_motion(s, s->mb_x, s->mb_y);
2004 ff_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
2006 s->first_slice_line=0;
2011 static int mb_var_thread(AVCodecContext *c, void *arg){
2012 MpegEncContext *s= *(void**)arg;
2015 ff_check_alignment();
2017 for(mb_y=s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2018 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2021 uint8_t *pix = s->new_picture.f.data[0] + (yy * s->linesize) + xx;
2023 int sum = s->dsp.pix_sum(pix, s->linesize);
2025 varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
2027 s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
2028 s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
2029 s->me.mb_var_sum_temp += varc;
2035 static void write_slice_end(MpegEncContext *s){
2036 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4){
2037 if(s->partitioned_frame){
2038 ff_mpeg4_merge_partitions(s);
2041 ff_mpeg4_stuffing(&s->pb);
2042 }else if(CONFIG_MJPEG_ENCODER && s->out_format == FMT_MJPEG){
2043 ff_mjpeg_encode_stuffing(&s->pb);
2046 align_put_bits(&s->pb);
2047 flush_put_bits(&s->pb);
2049 if((s->flags&CODEC_FLAG_PASS1) && !s->partitioned_frame)
2050 s->misc_bits+= get_bits_diff(s);
2053 static int encode_thread(AVCodecContext *c, void *arg){
2054 MpegEncContext *s= *(void**)arg;
2055 int mb_x, mb_y, pdif = 0;
2056 int chr_h= 16>>s->chroma_y_shift;
2058 MpegEncContext best_s, backup_s;
2059 uint8_t bit_buf[2][MAX_MB_BYTES];
2060 uint8_t bit_buf2[2][MAX_MB_BYTES];
2061 uint8_t bit_buf_tex[2][MAX_MB_BYTES];
2062 PutBitContext pb[2], pb2[2], tex_pb[2];
2063 //printf("%d->%d\n", s->resync_mb_y, s->end_mb_y);
2065 ff_check_alignment();
2068 init_put_bits(&pb [i], bit_buf [i], MAX_MB_BYTES);
2069 init_put_bits(&pb2 [i], bit_buf2 [i], MAX_MB_BYTES);
2070 init_put_bits(&tex_pb[i], bit_buf_tex[i], MAX_MB_BYTES);
2073 s->last_bits= put_bits_count(&s->pb);
2084 /* init last dc values */
2085 /* note: quant matrix value (8) is implied here */
2086 s->last_dc[i] = 128 << s->intra_dc_precision;
2088 s->current_picture.f.error[i] = 0;
2091 memset(s->last_mv, 0, sizeof(s->last_mv));
2095 switch(s->codec_id){
2097 case CODEC_ID_H263P:
2099 if (CONFIG_H263_ENCODER)
2100 s->gob_index = ff_h263_get_gob_height(s);
2102 case CODEC_ID_MPEG4:
2103 if(CONFIG_MPEG4_ENCODER && s->partitioned_frame)
2104 ff_mpeg4_init_partitions(s);
2110 s->first_slice_line = 1;
2111 s->ptr_lastgob = s->pb.buf;
2112 for(mb_y= s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2113 // printf("row %d at %X\n", s->mb_y, (int)s);
2117 ff_set_qscale(s, s->qscale);
2118 ff_init_block_index(s);
2120 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2121 int xy= mb_y*s->mb_stride + mb_x; // removed const, H261 needs to adjust this
2122 int mb_type= s->mb_type[xy];
2127 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < MAX_MB_BYTES){
2128 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2131 if(s->data_partitioning){
2132 if( s->pb2 .buf_end - s->pb2 .buf - (put_bits_count(&s-> pb2)>>3) < MAX_MB_BYTES
2133 || s->tex_pb.buf_end - s->tex_pb.buf - (put_bits_count(&s->tex_pb )>>3) < MAX_MB_BYTES){
2134 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2140 s->mb_y = mb_y; // moved into loop, can get changed by H.261
2141 ff_update_block_index(s);
2143 if(CONFIG_H261_ENCODER && s->codec_id == CODEC_ID_H261){
2144 ff_h261_reorder_mb_index(s);
2145 xy= s->mb_y*s->mb_stride + s->mb_x;
2146 mb_type= s->mb_type[xy];
2149 /* write gob / video packet header */
2151 int current_packet_size, is_gob_start;
2153 current_packet_size= ((put_bits_count(&s->pb)+7)>>3) - (s->ptr_lastgob - s->pb.buf);
2155 is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0;
2157 if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1;
2159 switch(s->codec_id){
2161 case CODEC_ID_H263P:
2162 if(!s->h263_slice_structured)
2163 if(s->mb_x || s->mb_y%s->gob_index) is_gob_start=0;
2165 case CODEC_ID_MPEG2VIDEO:
2166 if(s->mb_x==0 && s->mb_y!=0) is_gob_start=1;
2167 case CODEC_ID_MPEG1VIDEO:
2168 if(s->mb_skip_run) is_gob_start=0;
2173 if(s->start_mb_y != mb_y || mb_x!=0){
2176 if(CONFIG_MPEG4_ENCODER && s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){
2177 ff_mpeg4_init_partitions(s);
2181 assert((put_bits_count(&s->pb)&7) == 0);
2182 current_packet_size= put_bits_ptr(&s->pb) - s->ptr_lastgob;
2184 if(s->avctx->error_rate && s->resync_mb_x + s->resync_mb_y > 0){
2185 int r= put_bits_count(&s->pb)/8 + s->picture_number + 16 + s->mb_x + s->mb_y;
2186 int d= 100 / s->avctx->error_rate;
2188 current_packet_size=0;
2189 s->pb.buf_ptr= s->ptr_lastgob;
2190 assert(put_bits_ptr(&s->pb) == s->ptr_lastgob);
2194 if (s->avctx->rtp_callback){
2195 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width + mb_x - s->resync_mb_x;
2196 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, current_packet_size, number_mb);
2199 switch(s->codec_id){
2200 case CODEC_ID_MPEG4:
2201 if (CONFIG_MPEG4_ENCODER) {
2202 ff_mpeg4_encode_video_packet_header(s);
2203 ff_mpeg4_clean_buffers(s);
2206 case CODEC_ID_MPEG1VIDEO:
2207 case CODEC_ID_MPEG2VIDEO:
2208 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER) {
2209 ff_mpeg1_encode_slice_header(s);
2210 ff_mpeg1_clean_buffers(s);
2214 case CODEC_ID_H263P:
2215 if (CONFIG_H263_ENCODER)
2216 h263_encode_gob_header(s, mb_y);
2220 if(s->flags&CODEC_FLAG_PASS1){
2221 int bits= put_bits_count(&s->pb);
2222 s->misc_bits+= bits - s->last_bits;
2226 s->ptr_lastgob += current_packet_size;
2227 s->first_slice_line=1;
2228 s->resync_mb_x=mb_x;
2229 s->resync_mb_y=mb_y;
2233 if( (s->resync_mb_x == s->mb_x)
2234 && s->resync_mb_y+1 == s->mb_y){
2235 s->first_slice_line=0;
2239 s->dquant=0; //only for QP_RD
2241 if(mb_type & (mb_type-1) || (s->flags & CODEC_FLAG_QP_RD)){ // more than 1 MB type possible or CODEC_FLAG_QP_RD
2243 int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
2245 copy_context_before_encode(&backup_s, s, -1);
2247 best_s.data_partitioning= s->data_partitioning;
2248 best_s.partitioned_frame= s->partitioned_frame;
2249 if(s->data_partitioning){
2250 backup_s.pb2= s->pb2;
2251 backup_s.tex_pb= s->tex_pb;
2254 if(mb_type&CANDIDATE_MB_TYPE_INTER){
2255 s->mv_dir = MV_DIR_FORWARD;
2256 s->mv_type = MV_TYPE_16X16;
2258 s->mv[0][0][0] = s->p_mv_table[xy][0];
2259 s->mv[0][0][1] = s->p_mv_table[xy][1];
2260 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER, pb, pb2, tex_pb,
2261 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2263 if(mb_type&CANDIDATE_MB_TYPE_INTER_I){
2264 s->mv_dir = MV_DIR_FORWARD;
2265 s->mv_type = MV_TYPE_FIELD;
2268 j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2269 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2270 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2272 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER_I, pb, pb2, tex_pb,
2273 &dmin, &next_block, 0, 0);
2275 if(mb_type&CANDIDATE_MB_TYPE_SKIPPED){
2276 s->mv_dir = MV_DIR_FORWARD;
2277 s->mv_type = MV_TYPE_16X16;
2281 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_SKIPPED, pb, pb2, tex_pb,
2282 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2284 if(mb_type&CANDIDATE_MB_TYPE_INTER4V){
2285 s->mv_dir = MV_DIR_FORWARD;
2286 s->mv_type = MV_TYPE_8X8;
2289 s->mv[0][i][0] = s->current_picture.f.motion_val[0][s->block_index[i]][0];
2290 s->mv[0][i][1] = s->current_picture.f.motion_val[0][s->block_index[i]][1];
2292 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER4V, pb, pb2, tex_pb,
2293 &dmin, &next_block, 0, 0);
2295 if(mb_type&CANDIDATE_MB_TYPE_FORWARD){
2296 s->mv_dir = MV_DIR_FORWARD;
2297 s->mv_type = MV_TYPE_16X16;
2299 s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2300 s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2301 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD, pb, pb2, tex_pb,
2302 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2304 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD){
2305 s->mv_dir = MV_DIR_BACKWARD;
2306 s->mv_type = MV_TYPE_16X16;
2308 s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2309 s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2310 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD, pb, pb2, tex_pb,
2311 &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
2313 if(mb_type&CANDIDATE_MB_TYPE_BIDIR){
2314 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2315 s->mv_type = MV_TYPE_16X16;
2317 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2318 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2319 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2320 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2321 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb,
2322 &dmin, &next_block, 0, 0);
2324 if(mb_type&CANDIDATE_MB_TYPE_FORWARD_I){
2325 s->mv_dir = MV_DIR_FORWARD;
2326 s->mv_type = MV_TYPE_FIELD;
2329 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2330 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2331 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2333 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD_I, pb, pb2, tex_pb,
2334 &dmin, &next_block, 0, 0);
2336 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD_I){
2337 s->mv_dir = MV_DIR_BACKWARD;
2338 s->mv_type = MV_TYPE_FIELD;
2341 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2342 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2343 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2345 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD_I, pb, pb2, tex_pb,
2346 &dmin, &next_block, 0, 0);
2348 if(mb_type&CANDIDATE_MB_TYPE_BIDIR_I){
2349 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2350 s->mv_type = MV_TYPE_FIELD;
2352 for(dir=0; dir<2; dir++){
2354 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2355 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2356 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2359 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR_I, pb, pb2, tex_pb,
2360 &dmin, &next_block, 0, 0);
2362 if(mb_type&CANDIDATE_MB_TYPE_INTRA){
2364 s->mv_type = MV_TYPE_16X16;
2368 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTRA, pb, pb2, tex_pb,
2369 &dmin, &next_block, 0, 0);
2370 if(s->h263_pred || s->h263_aic){
2372 s->mbintra_table[mb_x + mb_y*s->mb_stride]=1;
2374 ff_clean_intra_table_entries(s); //old mode?
2378 if((s->flags & CODEC_FLAG_QP_RD) && dmin < INT_MAX){
2379 if(best_s.mv_type==MV_TYPE_16X16){ //FIXME move 4mv after QPRD
2380 const int last_qp= backup_s.qscale;
2383 const int mvdir= (best_s.mv_dir&MV_DIR_BACKWARD) ? 1 : 0;
2384 static const int dquant_tab[4]={-1,1,-2,2};
2386 assert(backup_s.dquant == 0);
2389 s->mv_dir= best_s.mv_dir;
2390 s->mv_type = MV_TYPE_16X16;
2391 s->mb_intra= best_s.mb_intra;
2392 s->mv[0][0][0] = best_s.mv[0][0][0];
2393 s->mv[0][0][1] = best_s.mv[0][0][1];
2394 s->mv[1][0][0] = best_s.mv[1][0][0];
2395 s->mv[1][0][1] = best_s.mv[1][0][1];
2397 qpi = s->pict_type == AV_PICTURE_TYPE_B ? 2 : 0;
2398 for(; qpi<4; qpi++){
2399 int dquant= dquant_tab[qpi];
2400 qp= last_qp + dquant;
2401 if(qp < s->avctx->qmin || qp > s->avctx->qmax)
2403 backup_s.dquant= dquant;
2404 if(s->mb_intra && s->dc_val[0]){
2406 dc[i]= s->dc_val[0][ s->block_index[i] ];
2407 memcpy(ac[i], s->ac_val[0][s->block_index[i]], sizeof(DCTELEM)*16);
2411 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2412 &dmin, &next_block, s->mv[mvdir][0][0], s->mv[mvdir][0][1]);
2413 if(best_s.qscale != qp){
2414 if(s->mb_intra && s->dc_val[0]){
2416 s->dc_val[0][ s->block_index[i] ]= dc[i];
2417 memcpy(s->ac_val[0][s->block_index[i]], ac[i], sizeof(DCTELEM)*16);
2424 if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT){
2425 int mx= s->b_direct_mv_table[xy][0];
2426 int my= s->b_direct_mv_table[xy][1];
2428 backup_s.dquant = 0;
2429 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2431 ff_mpeg4_set_direct_mv(s, mx, my);
2432 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2433 &dmin, &next_block, mx, my);
2435 if(CONFIG_MPEG4_ENCODER && mb_type&CANDIDATE_MB_TYPE_DIRECT0){
2436 backup_s.dquant = 0;
2437 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2439 ff_mpeg4_set_direct_mv(s, 0, 0);
2440 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2441 &dmin, &next_block, 0, 0);
2443 if(!best_s.mb_intra && s->flags2&CODEC_FLAG2_SKIP_RD){
2446 coded |= s->block_last_index[i];
2449 memcpy(s->mv, best_s.mv, sizeof(s->mv));
2450 if(CONFIG_MPEG4_ENCODER && best_s.mv_dir & MV_DIRECT){
2451 mx=my=0; //FIXME find the one we actually used
2452 ff_mpeg4_set_direct_mv(s, mx, my);
2453 }else if(best_s.mv_dir&MV_DIR_BACKWARD){
2461 s->mv_dir= best_s.mv_dir;
2462 s->mv_type = best_s.mv_type;
2464 /* s->mv[0][0][0] = best_s.mv[0][0][0];
2465 s->mv[0][0][1] = best_s.mv[0][0][1];
2466 s->mv[1][0][0] = best_s.mv[1][0][0];
2467 s->mv[1][0][1] = best_s.mv[1][0][1];*/
2470 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2471 &dmin, &next_block, mx, my);
2476 s->current_picture.f.qscale_table[xy] = best_s.qscale;
2478 copy_context_after_encode(s, &best_s, -1);
2480 pb_bits_count= put_bits_count(&s->pb);
2481 flush_put_bits(&s->pb);
2482 ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
2485 if(s->data_partitioning){
2486 pb2_bits_count= put_bits_count(&s->pb2);
2487 flush_put_bits(&s->pb2);
2488 ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
2489 s->pb2= backup_s.pb2;
2491 tex_pb_bits_count= put_bits_count(&s->tex_pb);
2492 flush_put_bits(&s->tex_pb);
2493 ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
2494 s->tex_pb= backup_s.tex_pb;
2496 s->last_bits= put_bits_count(&s->pb);
2498 if (CONFIG_H263_ENCODER &&
2499 s->out_format == FMT_H263 && s->pict_type!=AV_PICTURE_TYPE_B)
2500 ff_h263_update_motion_val(s);
2502 if(next_block==0){ //FIXME 16 vs linesize16
2503 s->dsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad , s->linesize ,16);
2504 s->dsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize , s->uvlinesize, 8);
2505 s->dsp.put_pixels_tab[1][0](s->dest[2], s->rd_scratchpad + 16*s->linesize + 8, s->uvlinesize, 8);
2508 if(s->avctx->mb_decision == FF_MB_DECISION_BITS)
2509 MPV_decode_mb(s, s->block);
2511 int motion_x = 0, motion_y = 0;
2512 s->mv_type=MV_TYPE_16X16;
2513 // only one MB-Type possible
2516 case CANDIDATE_MB_TYPE_INTRA:
2519 motion_x= s->mv[0][0][0] = 0;
2520 motion_y= s->mv[0][0][1] = 0;
2522 case CANDIDATE_MB_TYPE_INTER:
2523 s->mv_dir = MV_DIR_FORWARD;
2525 motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
2526 motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
2528 case CANDIDATE_MB_TYPE_INTER_I:
2529 s->mv_dir = MV_DIR_FORWARD;
2530 s->mv_type = MV_TYPE_FIELD;
2533 j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2534 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2535 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2538 case CANDIDATE_MB_TYPE_INTER4V:
2539 s->mv_dir = MV_DIR_FORWARD;
2540 s->mv_type = MV_TYPE_8X8;
2543 s->mv[0][i][0] = s->current_picture.f.motion_val[0][s->block_index[i]][0];
2544 s->mv[0][i][1] = s->current_picture.f.motion_val[0][s->block_index[i]][1];
2547 case CANDIDATE_MB_TYPE_DIRECT:
2548 if (CONFIG_MPEG4_ENCODER) {
2549 s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2551 motion_x=s->b_direct_mv_table[xy][0];
2552 motion_y=s->b_direct_mv_table[xy][1];
2553 ff_mpeg4_set_direct_mv(s, motion_x, motion_y);
2556 case CANDIDATE_MB_TYPE_DIRECT0:
2557 if (CONFIG_MPEG4_ENCODER) {
2558 s->mv_dir = MV_DIR_FORWARD|MV_DIR_BACKWARD|MV_DIRECT;
2560 ff_mpeg4_set_direct_mv(s, 0, 0);
2563 case CANDIDATE_MB_TYPE_BIDIR:
2564 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2566 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2567 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2568 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2569 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2571 case CANDIDATE_MB_TYPE_BACKWARD:
2572 s->mv_dir = MV_DIR_BACKWARD;
2574 motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2575 motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2577 case CANDIDATE_MB_TYPE_FORWARD:
2578 s->mv_dir = MV_DIR_FORWARD;
2580 motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2581 motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2582 // printf(" %d %d ", motion_x, motion_y);
2584 case CANDIDATE_MB_TYPE_FORWARD_I:
2585 s->mv_dir = MV_DIR_FORWARD;
2586 s->mv_type = MV_TYPE_FIELD;
2589 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2590 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2591 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2594 case CANDIDATE_MB_TYPE_BACKWARD_I:
2595 s->mv_dir = MV_DIR_BACKWARD;
2596 s->mv_type = MV_TYPE_FIELD;
2599 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2600 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2601 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2604 case CANDIDATE_MB_TYPE_BIDIR_I:
2605 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2606 s->mv_type = MV_TYPE_FIELD;
2608 for(dir=0; dir<2; dir++){
2610 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2611 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2612 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2617 av_log(s->avctx, AV_LOG_ERROR, "illegal MB type\n");
2620 encode_mb(s, motion_x, motion_y);
2622 // RAL: Update last macroblock type
2623 s->last_mv_dir = s->mv_dir;
2625 if (CONFIG_H263_ENCODER &&
2626 s->out_format == FMT_H263 && s->pict_type!=AV_PICTURE_TYPE_B)
2627 ff_h263_update_motion_val(s);
2629 MPV_decode_mb(s, s->block);
2632 /* clean the MV table in IPS frames for direct mode in B frames */
2633 if(s->mb_intra /* && I,P,S_TYPE */){
2634 s->p_mv_table[xy][0]=0;
2635 s->p_mv_table[xy][1]=0;
2638 if(s->flags&CODEC_FLAG_PSNR){
2642 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
2643 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
2645 s->current_picture.f.error[0] += sse(
2646 s, s->new_picture.f.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16,
2647 s->dest[0], w, h, s->linesize);
2648 s->current_picture.f.error[1] += sse(
2649 s, s->new_picture.f.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*chr_h,
2650 s->dest[1], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
2651 s->current_picture.f.error[2] += sse(
2652 s, s->new_picture.f.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*chr_h,
2653 s->dest[2], w>>1, h>>s->chroma_y_shift, s->uvlinesize);
2656 if(CONFIG_H263_ENCODER && s->out_format == FMT_H263)
2657 ff_h263_loop_filter(s);
2659 //printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, put_bits_count(&s->pb));
2663 //not beautiful here but we must write it before flushing so it has to be here
2664 if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == AV_PICTURE_TYPE_I)
2665 msmpeg4_encode_ext_header(s);
2669 /* Send the last GOB if RTP */
2670 if (s->avctx->rtp_callback) {
2671 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width - s->resync_mb_x;
2672 pdif = put_bits_ptr(&s->pb) - s->ptr_lastgob;
2673 /* Call the RTP callback to send the last GOB */
2675 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, pdif, number_mb);
2681 #define MERGE(field) dst->field += src->field; src->field=0
2682 static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src){
2683 MERGE(me.scene_change_score);
2684 MERGE(me.mc_mb_var_sum_temp);
2685 MERGE(me.mb_var_sum_temp);
2688 static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src){
2691 MERGE(dct_count[0]); //note, the other dct vars are not part of the context
2692 MERGE(dct_count[1]);
2702 MERGE(padding_bug_score);
2703 MERGE(current_picture.f.error[0]);
2704 MERGE(current_picture.f.error[1]);
2705 MERGE(current_picture.f.error[2]);
2707 if(dst->avctx->noise_reduction){
2708 for(i=0; i<64; i++){
2709 MERGE(dct_error_sum[0][i]);
2710 MERGE(dct_error_sum[1][i]);
2714 assert(put_bits_count(&src->pb) % 8 ==0);
2715 assert(put_bits_count(&dst->pb) % 8 ==0);
2716 ff_copy_bits(&dst->pb, src->pb.buf, put_bits_count(&src->pb));
2717 flush_put_bits(&dst->pb);
2720 static int estimate_qp(MpegEncContext *s, int dry_run){
2721 if (s->next_lambda){
2722 s->current_picture_ptr->f.quality =
2723 s->current_picture.f.quality = s->next_lambda;
2724 if(!dry_run) s->next_lambda= 0;
2725 } else if (!s->fixed_qscale) {
2726 s->current_picture_ptr->f.quality =
2727 s->current_picture.f.quality = ff_rate_estimate_qscale(s, dry_run);
2728 if (s->current_picture.f.quality < 0)
2732 if(s->adaptive_quant){
2733 switch(s->codec_id){
2734 case CODEC_ID_MPEG4:
2735 if (CONFIG_MPEG4_ENCODER)
2736 ff_clean_mpeg4_qscales(s);
2739 case CODEC_ID_H263P:
2741 if (CONFIG_H263_ENCODER)
2742 ff_clean_h263_qscales(s);
2745 ff_init_qscale_tab(s);
2748 s->lambda= s->lambda_table[0];
2751 s->lambda = s->current_picture.f.quality;
2752 //printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality);
2757 /* must be called before writing the header */
2758 static void set_frame_distances(MpegEncContext * s){
2759 assert(s->current_picture_ptr->pts != AV_NOPTS_VALUE);
2760 s->time = s->current_picture_ptr->f.pts * s->avctx->time_base.num;
2762 if(s->pict_type==AV_PICTURE_TYPE_B){
2763 s->pb_time= s->pp_time - (s->last_non_b_time - s->time);
2764 assert(s->pb_time > 0 && s->pb_time < s->pp_time);
2766 s->pp_time= s->time - s->last_non_b_time;
2767 s->last_non_b_time= s->time;
2768 assert(s->picture_number==0 || s->pp_time > 0);
2772 static int encode_picture(MpegEncContext *s, int picture_number)
2776 int context_count = s->avctx->thread_count;
2778 s->picture_number = picture_number;
2780 /* Reset the average MB variance */
2781 s->me.mb_var_sum_temp =
2782 s->me.mc_mb_var_sum_temp = 0;
2784 /* we need to initialize some time vars before we can encode b-frames */
2785 // RAL: Condition added for MPEG1VIDEO
2786 if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->msmpeg4_version))
2787 set_frame_distances(s);
2788 if(CONFIG_MPEG4_ENCODER && s->codec_id == CODEC_ID_MPEG4)
2789 ff_set_mpeg4_time(s);
2791 s->me.scene_change_score=0;
2793 // s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME rate distortion
2795 if(s->pict_type==AV_PICTURE_TYPE_I){
2796 if(s->msmpeg4_version >= 3) s->no_rounding=1;
2797 else s->no_rounding=0;
2798 }else if(s->pict_type!=AV_PICTURE_TYPE_B){
2799 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
2800 s->no_rounding ^= 1;
2803 if(s->flags & CODEC_FLAG_PASS2){
2804 if (estimate_qp(s,1) < 0)
2806 ff_get_2pass_fcode(s);
2807 }else if(!(s->flags & CODEC_FLAG_QSCALE)){
2808 if(s->pict_type==AV_PICTURE_TYPE_B)
2809 s->lambda= s->last_lambda_for[s->pict_type];
2811 s->lambda= s->last_lambda_for[s->last_non_b_pict_type];
2815 s->mb_intra=0; //for the rate distortion & bit compare functions
2816 for(i=1; i<context_count; i++){
2817 ff_update_duplicate_context(s->thread_context[i], s);
2823 /* Estimate motion for every MB */
2824 if(s->pict_type != AV_PICTURE_TYPE_I){
2825 s->lambda = (s->lambda * s->avctx->me_penalty_compensation + 128)>>8;
2826 s->lambda2= (s->lambda2* (int64_t)s->avctx->me_penalty_compensation + 128)>>8;
2827 if(s->pict_type != AV_PICTURE_TYPE_B && s->avctx->me_threshold==0){
2828 if((s->avctx->pre_me && s->last_non_b_pict_type==AV_PICTURE_TYPE_I) || s->avctx->pre_me==2){
2829 s->avctx->execute(s->avctx, pre_estimate_motion_thread, &s->thread_context[0], NULL, context_count, sizeof(void*));
2833 s->avctx->execute(s->avctx, estimate_motion_thread, &s->thread_context[0], NULL, context_count, sizeof(void*));
2834 }else /* if(s->pict_type == AV_PICTURE_TYPE_I) */{
2836 for(i=0; i<s->mb_stride*s->mb_height; i++)
2837 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2839 if(!s->fixed_qscale){
2840 /* finding spatial complexity for I-frame rate control */
2841 s->avctx->execute(s->avctx, mb_var_thread, &s->thread_context[0], NULL, context_count, sizeof(void*));
2844 for(i=1; i<context_count; i++){
2845 merge_context_after_me(s, s->thread_context[i]);
2847 s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum= s->me.mc_mb_var_sum_temp;
2848 s->current_picture. mb_var_sum= s->current_picture_ptr-> mb_var_sum= s->me. mb_var_sum_temp;
2851 if(s->me.scene_change_score > s->avctx->scenechange_threshold && s->pict_type == AV_PICTURE_TYPE_P){
2852 s->pict_type= AV_PICTURE_TYPE_I;
2853 for(i=0; i<s->mb_stride*s->mb_height; i++)
2854 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2855 //printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum);
2859 if(s->pict_type==AV_PICTURE_TYPE_P || s->pict_type==AV_PICTURE_TYPE_S) {
2860 s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER);
2862 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2864 a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select
2865 b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I);
2866 s->f_code= FFMAX3(s->f_code, a, b);
2869 ff_fix_long_p_mvs(s);
2870 ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0);
2871 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2875 ff_fix_long_mvs(s, s->p_field_select_table[i], j,
2876 s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0);
2881 if(s->pict_type==AV_PICTURE_TYPE_B){
2884 a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD);
2885 b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2886 s->f_code = FFMAX(a, b);
2888 a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD);
2889 b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2890 s->b_code = FFMAX(a, b);
2892 ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1);
2893 ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1);
2894 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2895 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2896 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2898 for(dir=0; dir<2; dir++){
2901 int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I)
2902 : (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I);
2903 ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j,
2904 s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1);
2912 if (estimate_qp(s, 0) < 0)
2915 if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==AV_PICTURE_TYPE_I && !(s->flags & CODEC_FLAG_QSCALE))
2916 s->qscale= 3; //reduce clipping problems
2918 if (s->out_format == FMT_MJPEG) {
2919 /* for mjpeg, we do include qscale in the matrix */
2921 int j= s->dsp.idct_permutation[i];
2923 s->intra_matrix[j] = av_clip_uint8((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
2925 s->y_dc_scale_table=
2926 s->c_dc_scale_table= ff_mpeg2_dc_scale_table[s->intra_dc_precision];
2927 s->intra_matrix[0] = ff_mpeg2_dc_scale_table[s->intra_dc_precision][8];
2928 ff_convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
2929 s->intra_matrix, s->intra_quant_bias, 8, 8, 1);
2933 //FIXME var duplication
2934 s->current_picture_ptr->f.key_frame =
2935 s->current_picture.f.key_frame = s->pict_type == AV_PICTURE_TYPE_I; //FIXME pic_ptr
2936 s->current_picture_ptr->f.pict_type =
2937 s->current_picture.f.pict_type = s->pict_type;
2939 if (s->current_picture.f.key_frame)
2940 s->picture_in_gop_number=0;
2942 s->last_bits= put_bits_count(&s->pb);
2943 switch(s->out_format) {
2945 if (CONFIG_MJPEG_ENCODER)
2946 ff_mjpeg_encode_picture_header(s);
2949 if (CONFIG_H261_ENCODER)
2950 ff_h261_encode_picture_header(s, picture_number);
2953 if (CONFIG_WMV2_ENCODER && s->codec_id == CODEC_ID_WMV2)
2954 ff_wmv2_encode_picture_header(s, picture_number);
2955 else if (CONFIG_MSMPEG4_ENCODER && s->msmpeg4_version)
2956 msmpeg4_encode_picture_header(s, picture_number);
2957 else if (CONFIG_MPEG4_ENCODER && s->h263_pred)
2958 mpeg4_encode_picture_header(s, picture_number);
2959 else if (CONFIG_RV10_ENCODER && s->codec_id == CODEC_ID_RV10)
2960 rv10_encode_picture_header(s, picture_number);
2961 else if (CONFIG_RV20_ENCODER && s->codec_id == CODEC_ID_RV20)
2962 rv20_encode_picture_header(s, picture_number);
2963 else if (CONFIG_FLV_ENCODER && s->codec_id == CODEC_ID_FLV1)
2964 ff_flv_encode_picture_header(s, picture_number);
2965 else if (CONFIG_H263_ENCODER)
2966 h263_encode_picture_header(s, picture_number);
2969 if (CONFIG_MPEG1VIDEO_ENCODER || CONFIG_MPEG2VIDEO_ENCODER)
2970 mpeg1_encode_picture_header(s, picture_number);
2977 bits= put_bits_count(&s->pb);
2978 s->header_bits= bits - s->last_bits;
2980 for(i=1; i<context_count; i++){
2981 update_duplicate_context_after_me(s->thread_context[i], s);
2983 s->avctx->execute(s->avctx, encode_thread, &s->thread_context[0], NULL, context_count, sizeof(void*));
2984 for(i=1; i<context_count; i++){
2985 merge_context_after_encode(s, s->thread_context[i]);
2991 static void denoise_dct_c(MpegEncContext *s, DCTELEM *block){
2992 const int intra= s->mb_intra;
2995 s->dct_count[intra]++;
2997 for(i=0; i<64; i++){
2998 int level= block[i];
3002 s->dct_error_sum[intra][i] += level;
3003 level -= s->dct_offset[intra][i];
3004 if(level<0) level=0;
3006 s->dct_error_sum[intra][i] -= level;
3007 level += s->dct_offset[intra][i];
3008 if(level>0) level=0;
3015 static int dct_quantize_trellis_c(MpegEncContext *s,
3016 DCTELEM *block, int n,
3017 int qscale, int *overflow){
3019 const uint8_t *scantable= s->intra_scantable.scantable;
3020 const uint8_t *perm_scantable= s->intra_scantable.permutated;
3022 unsigned int threshold1, threshold2;
3034 int coeff_count[64];
3035 int qmul, qadd, start_i, last_non_zero, i, dc;
3036 const int esc_length= s->ac_esc_length;
3038 uint8_t * last_length;
3039 const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6);
3041 s->dsp.fdct (block);
3043 if(s->dct_error_sum)
3044 s->denoise_dct(s, block);
3046 qadd= ((qscale-1)|1)*8;
3057 /* For AIC we skip quant/dequant of INTRADC */
3062 /* note: block[0] is assumed to be positive */
3063 block[0] = (block[0] + (q >> 1)) / q;
3066 qmat = s->q_intra_matrix[qscale];
3067 if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3068 bias= 1<<(QMAT_SHIFT-1);
3069 length = s->intra_ac_vlc_length;
3070 last_length= s->intra_ac_vlc_last_length;
3074 qmat = s->q_inter_matrix[qscale];
3075 length = s->inter_ac_vlc_length;
3076 last_length= s->inter_ac_vlc_last_length;
3080 threshold1= (1<<QMAT_SHIFT) - bias - 1;
3081 threshold2= (threshold1<<1);
3083 for(i=63; i>=start_i; i--) {
3084 const int j = scantable[i];
3085 int level = block[j] * qmat[j];
3087 if(((unsigned)(level+threshold1))>threshold2){
3093 for(i=start_i; i<=last_non_zero; i++) {
3094 const int j = scantable[i];
3095 int level = block[j] * qmat[j];
3097 // if( bias+level >= (1<<(QMAT_SHIFT - 3))
3098 // || bias-level >= (1<<(QMAT_SHIFT - 3))){
3099 if(((unsigned)(level+threshold1))>threshold2){
3101 level= (bias + level)>>QMAT_SHIFT;
3103 coeff[1][i]= level-1;
3104 // coeff[2][k]= level-2;
3106 level= (bias - level)>>QMAT_SHIFT;
3107 coeff[0][i]= -level;
3108 coeff[1][i]= -level+1;
3109 // coeff[2][k]= -level+2;
3111 coeff_count[i]= FFMIN(level, 2);
3112 assert(coeff_count[i]);
3115 coeff[0][i]= (level>>31)|1;
3120 *overflow= s->max_qcoeff < max; //overflow might have happened
3122 if(last_non_zero < start_i){
3123 memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3124 return last_non_zero;
3127 score_tab[start_i]= 0;
3128 survivor[0]= start_i;
3131 for(i=start_i; i<=last_non_zero; i++){
3132 int level_index, j, zero_distortion;
3133 int dct_coeff= FFABS(block[ scantable[i] ]);
3134 int best_score=256*256*256*120;
3136 if ( s->dsp.fdct == fdct_ifast
3137 #ifndef FAAN_POSTSCALE
3138 || s->dsp.fdct == ff_faandct
3141 dct_coeff= (dct_coeff*ff_inv_aanscales[ scantable[i] ]) >> 12;
3142 zero_distortion= dct_coeff*dct_coeff;
3144 for(level_index=0; level_index < coeff_count[i]; level_index++){
3146 int level= coeff[level_index][i];
3147 const int alevel= FFABS(level);
3152 if(s->out_format == FMT_H263){
3153 unquant_coeff= alevel*qmul + qadd;
3155 j= s->dsp.idct_permutation[ scantable[i] ]; //FIXME optimize
3157 unquant_coeff = (int)( alevel * qscale * s->intra_matrix[j]) >> 3;
3158 unquant_coeff = (unquant_coeff - 1) | 1;
3160 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[j])) >> 4;
3161 unquant_coeff = (unquant_coeff - 1) | 1;
3166 distortion= (unquant_coeff - dct_coeff) * (unquant_coeff - dct_coeff) - zero_distortion;
3168 if((level&(~127)) == 0){
3169 for(j=survivor_count-1; j>=0; j--){
3170 int run= i - survivor[j];
3171 int score= distortion + length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3172 score += score_tab[i-run];
3174 if(score < best_score){
3177 level_tab[i+1]= level-64;
3181 if(s->out_format == FMT_H263){
3182 for(j=survivor_count-1; j>=0; j--){
3183 int run= i - survivor[j];
3184 int score= distortion + last_length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3185 score += score_tab[i-run];
3186 if(score < last_score){
3189 last_level= level-64;
3195 distortion += esc_length*lambda;
3196 for(j=survivor_count-1; j>=0; j--){
3197 int run= i - survivor[j];
3198 int score= distortion + score_tab[i-run];
3200 if(score < best_score){
3203 level_tab[i+1]= level-64;
3207 if(s->out_format == FMT_H263){
3208 for(j=survivor_count-1; j>=0; j--){
3209 int run= i - survivor[j];
3210 int score= distortion + score_tab[i-run];
3211 if(score < last_score){
3214 last_level= level-64;
3222 score_tab[i+1]= best_score;
3224 //Note: there is a vlc code in mpeg4 which is 1 bit shorter then another one with a shorter run and the same level
3225 if(last_non_zero <= 27){
3226 for(; survivor_count; survivor_count--){
3227 if(score_tab[ survivor[survivor_count-1] ] <= best_score)
3231 for(; survivor_count; survivor_count--){
3232 if(score_tab[ survivor[survivor_count-1] ] <= best_score + lambda)
3237 survivor[ survivor_count++ ]= i+1;
3240 if(s->out_format != FMT_H263){
3241 last_score= 256*256*256*120;
3242 for(i= survivor[0]; i<=last_non_zero + 1; i++){
3243 int score= score_tab[i];
3244 if(i) score += lambda*2; //FIXME exacter?
3246 if(score < last_score){
3249 last_level= level_tab[i];
3250 last_run= run_tab[i];
3255 s->coded_score[n] = last_score;
3257 dc= FFABS(block[0]);
3258 last_non_zero= last_i - 1;
3259 memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3261 if(last_non_zero < start_i)
3262 return last_non_zero;
3264 if(last_non_zero == 0 && start_i == 0){
3266 int best_score= dc * dc;
3268 for(i=0; i<coeff_count[0]; i++){
3269 int level= coeff[i][0];
3270 int alevel= FFABS(level);
3271 int unquant_coeff, score, distortion;
3273 if(s->out_format == FMT_H263){
3274 unquant_coeff= (alevel*qmul + qadd)>>3;
3276 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[0])) >> 4;
3277 unquant_coeff = (unquant_coeff - 1) | 1;
3279 unquant_coeff = (unquant_coeff + 4) >> 3;
3280 unquant_coeff<<= 3 + 3;
3282 distortion= (unquant_coeff - dc) * (unquant_coeff - dc);
3284 if((level&(~127)) == 0) score= distortion + last_length[UNI_AC_ENC_INDEX(0, level)]*lambda;
3285 else score= distortion + esc_length*lambda;
3287 if(score < best_score){
3289 best_level= level - 64;
3292 block[0]= best_level;
3293 s->coded_score[n] = best_score - dc*dc;
3294 if(best_level == 0) return -1;
3295 else return last_non_zero;
3301 block[ perm_scantable[last_non_zero] ]= last_level;
3304 for(; i>start_i; i -= run_tab[i] + 1){
3305 block[ perm_scantable[i-1] ]= level_tab[i];
3308 return last_non_zero;
3311 //#define REFINE_STATS 1
3312 static int16_t basis[64][64];
3314 static void build_basis(uint8_t *perm){
3321 double s= 0.25*(1<<BASIS_SHIFT);
3323 int perm_index= perm[index];
3324 if(i==0) s*= sqrt(0.5);
3325 if(j==0) s*= sqrt(0.5);
3326 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)));
3333 static int dct_quantize_refine(MpegEncContext *s, //FIXME breaks denoise?
3334 DCTELEM *block, int16_t *weight, DCTELEM *orig,
3337 LOCAL_ALIGNED_16(DCTELEM, d1, [64]);
3338 const uint8_t *scantable= s->intra_scantable.scantable;
3339 const uint8_t *perm_scantable= s->intra_scantable.permutated;
3340 // unsigned int threshold1, threshold2;
3345 int qmul, qadd, start_i, last_non_zero, i, dc;
3347 uint8_t * last_length;
3349 int rle_index, run, q = 1, sum; //q is only used when s->mb_intra is true
3352 static int after_last=0;
3353 static int to_zero=0;
3354 static int from_zero=0;
3357 static int messed_sign=0;
3360 if(basis[0][0] == 0)
3361 build_basis(s->dsp.idct_permutation);