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 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 * 4MV & hq & b-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
26 * @file mpegvideo_enc.c
27 * The simplest mpeg encoder (well, it was the simplest!).
32 #include "mpegvideo.h"
33 #include "mpegvideo_common.h"
42 static int encode_picture(MpegEncContext *s, int picture_number);
43 static int dct_quantize_refine(MpegEncContext *s, DCTELEM *block, int16_t *weight, DCTELEM *orig, int n, int qscale);
44 static int sse_mb(MpegEncContext *s);
46 /* enable all paranoid tests for rounding, overflows, etc... */
51 static const uint16_t aanscales[64] = {
52 /* precomputed values scaled up by 14 bits */
53 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520,
54 22725, 31521, 29692, 26722, 22725, 17855, 12299, 6270,
55 21407, 29692, 27969, 25172, 21407, 16819, 11585, 5906,
56 19266, 26722, 25172, 22654, 19266, 15137, 10426, 5315,
57 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520,
58 12873, 17855, 16819, 15137, 12873, 10114, 6967, 3552,
59 8867 , 12299, 11585, 10426, 8867, 6967, 4799, 2446,
60 4520 , 6270, 5906, 5315, 4520, 3552, 2446, 1247
63 static uint8_t default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
64 static uint8_t default_fcode_tab[MAX_MV*2+1];
66 enum PixelFormat ff_yuv420p_list[2]= {PIX_FMT_YUV420P, -1};
68 static void convert_matrix(DSPContext *dsp, int (*qmat)[64], uint16_t (*qmat16)[2][64],
69 const uint16_t *quant_matrix, int bias, int qmin, int qmax, int intra)
74 for(qscale=qmin; qscale<=qmax; qscale++){
76 if (dsp->fdct == ff_jpeg_fdct_islow
78 || dsp->fdct == ff_faandct
82 const int j= dsp->idct_permutation[i];
83 /* 16 <= qscale * quant_matrix[i] <= 7905 */
84 /* 19952 <= aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
85 /* (1<<36)/19952 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
86 /* 3444240 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= 275 */
88 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) /
89 (qscale * quant_matrix[j]));
91 } else if (dsp->fdct == fdct_ifast
92 #ifndef FAAN_POSTSCALE
93 || dsp->fdct == ff_faandct
97 const int j= dsp->idct_permutation[i];
98 /* 16 <= qscale * quant_matrix[i] <= 7905 */
99 /* 19952 <= aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
100 /* (1<<36)/19952 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
101 /* 3444240 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= 275 */
103 qmat[qscale][i] = (int)((UINT64_C(1) << (QMAT_SHIFT + 14)) /
104 (aanscales[i] * qscale * quant_matrix[j]));
108 const int j= dsp->idct_permutation[i];
109 /* We can safely suppose that 16 <= quant_matrix[i] <= 255
110 So 16 <= qscale * quant_matrix[i] <= 7905
111 so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
112 so 32768 >= (1<<19) / (qscale * quant_matrix[i]) >= 67
114 qmat[qscale][i] = (int)((UINT64_C(1) << QMAT_SHIFT) / (qscale * quant_matrix[j]));
115 // qmat [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
116 qmat16[qscale][0][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[j]);
118 if(qmat16[qscale][0][i]==0 || qmat16[qscale][0][i]==128*256) qmat16[qscale][0][i]=128*256-1;
119 qmat16[qscale][1][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][0][i]);
123 for(i=intra; i<64; i++){
125 if (dsp->fdct == fdct_ifast
126 #ifndef FAAN_POSTSCALE
127 || dsp->fdct == ff_faandct
130 max= (8191LL*aanscales[i]) >> 14;
132 while(((max * qmat[qscale][i]) >> shift) > INT_MAX){
138 av_log(NULL, AV_LOG_INFO, "Warning, QMAT_SHIFT is larger than %d, overflows possible\n", QMAT_SHIFT - shift);
142 static inline void update_qscale(MpegEncContext *s){
143 s->qscale= (s->lambda*139 + FF_LAMBDA_SCALE*64) >> (FF_LAMBDA_SHIFT + 7);
144 s->qscale= av_clip(s->qscale, s->avctx->qmin, s->avctx->qmax);
146 s->lambda2= (s->lambda*s->lambda + FF_LAMBDA_SCALE/2) >> FF_LAMBDA_SHIFT;
149 void ff_write_quant_matrix(PutBitContext *pb, uint16_t *matrix){
155 put_bits(pb, 8, matrix[ ff_zigzag_direct[i] ]);
161 static void copy_picture_attributes(MpegEncContext *s, AVFrame *dst, AVFrame *src){
164 dst->pict_type = src->pict_type;
165 dst->quality = src->quality;
166 dst->coded_picture_number = src->coded_picture_number;
167 dst->display_picture_number = src->display_picture_number;
168 // dst->reference = src->reference;
170 dst->interlaced_frame = src->interlaced_frame;
171 dst->top_field_first = src->top_field_first;
173 if(s->avctx->me_threshold){
174 if(!src->motion_val[0])
175 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_val not set!\n");
177 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.mb_type not set!\n");
178 if(!src->ref_index[0])
179 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.ref_index not set!\n");
180 if(src->motion_subsample_log2 != dst->motion_subsample_log2)
181 av_log(s->avctx, AV_LOG_ERROR, "AVFrame.motion_subsample_log2 doesn't match! (%d!=%d)\n",
182 src->motion_subsample_log2, dst->motion_subsample_log2);
184 memcpy(dst->mb_type, src->mb_type, s->mb_stride * s->mb_height * sizeof(dst->mb_type[0]));
187 int stride= ((16*s->mb_width )>>src->motion_subsample_log2) + 1;
188 int height= ((16*s->mb_height)>>src->motion_subsample_log2);
190 if(src->motion_val[i] && src->motion_val[i] != dst->motion_val[i]){
191 memcpy(dst->motion_val[i], src->motion_val[i], 2*stride*height*sizeof(int16_t));
193 if(src->ref_index[i] && src->ref_index[i] != dst->ref_index[i]){
194 memcpy(dst->ref_index[i], src->ref_index[i], s->b8_stride*2*s->mb_height*sizeof(int8_t));
200 static void update_duplicate_context_after_me(MpegEncContext *dst, MpegEncContext *src){
201 #define COPY(a) dst->a= src->a
203 COPY(current_picture);
209 COPY(picture_in_gop_number);
210 COPY(gop_picture_number);
211 COPY(frame_pred_frame_dct); //FIXME don't set in encode_header
212 COPY(progressive_frame); //FIXME don't set in encode_header
213 COPY(partitioned_frame); //FIXME don't set in encode_header
218 * sets the given MpegEncContext to defaults for encoding.
219 * the changed fields will not depend upon the prior state of the MpegEncContext.
221 static void MPV_encode_defaults(MpegEncContext *s){
223 MPV_common_defaults(s);
225 for(i=-16; i<16; i++){
226 default_fcode_tab[i + MAX_MV]= 1;
228 s->me.mv_penalty= default_mv_penalty;
229 s->fcode_tab= default_fcode_tab;
232 /* init video encoder */
233 int MPV_encode_init(AVCodecContext *avctx)
235 MpegEncContext *s = avctx->priv_data;
237 int chroma_h_shift, chroma_v_shift;
239 MPV_encode_defaults(s);
241 switch (avctx->codec_id) {
242 case CODEC_ID_MPEG2VIDEO:
243 if(avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P){
244 av_log(avctx, AV_LOG_ERROR, "only YUV420 and YUV422 are supported\n");
250 if(avctx->pix_fmt != PIX_FMT_YUVJ420P && avctx->pix_fmt != PIX_FMT_YUVJ422P &&
251 ((avctx->pix_fmt != PIX_FMT_YUV420P && avctx->pix_fmt != PIX_FMT_YUV422P) || avctx->strict_std_compliance>FF_COMPLIANCE_INOFFICIAL)){
252 av_log(avctx, AV_LOG_ERROR, "colorspace not supported in jpeg\n");
257 if(avctx->pix_fmt != PIX_FMT_YUV420P){
258 av_log(avctx, AV_LOG_ERROR, "only YUV420 is supported\n");
263 switch (avctx->pix_fmt) {
264 case PIX_FMT_YUVJ422P:
265 case PIX_FMT_YUV422P:
266 s->chroma_format = CHROMA_422;
268 case PIX_FMT_YUVJ420P:
269 case PIX_FMT_YUV420P:
271 s->chroma_format = CHROMA_420;
275 s->bit_rate = avctx->bit_rate;
276 s->width = avctx->width;
277 s->height = avctx->height;
278 if(avctx->gop_size > 600 && avctx->strict_std_compliance>FF_COMPLIANCE_EXPERIMENTAL){
279 av_log(avctx, AV_LOG_ERROR, "Warning keyframe interval too large! reducing it ...\n");
282 s->gop_size = avctx->gop_size;
284 s->flags= avctx->flags;
285 s->flags2= avctx->flags2;
286 s->max_b_frames= avctx->max_b_frames;
287 s->codec_id= avctx->codec->id;
288 s->luma_elim_threshold = avctx->luma_elim_threshold;
289 s->chroma_elim_threshold= avctx->chroma_elim_threshold;
290 s->strict_std_compliance= avctx->strict_std_compliance;
291 s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
292 s->quarter_sample= (avctx->flags & CODEC_FLAG_QPEL)!=0;
293 s->mpeg_quant= avctx->mpeg_quant;
294 s->rtp_mode= !!avctx->rtp_payload_size;
295 s->intra_dc_precision= avctx->intra_dc_precision;
296 s->user_specified_pts = AV_NOPTS_VALUE;
298 if (s->gop_size <= 1) {
305 s->me_method = avctx->me_method;
308 s->fixed_qscale = !!(avctx->flags & CODEC_FLAG_QSCALE);
310 s->adaptive_quant= ( s->avctx->lumi_masking
311 || s->avctx->dark_masking
312 || s->avctx->temporal_cplx_masking
313 || s->avctx->spatial_cplx_masking
314 || s->avctx->p_masking
315 || s->avctx->border_masking
316 || (s->flags&CODEC_FLAG_QP_RD))
319 s->obmc= !!(s->flags & CODEC_FLAG_OBMC);
320 s->loop_filter= !!(s->flags & CODEC_FLAG_LOOP_FILTER);
321 s->alternate_scan= !!(s->flags & CODEC_FLAG_ALT_SCAN);
322 s->intra_vlc_format= !!(s->flags2 & CODEC_FLAG2_INTRA_VLC);
323 s->q_scale_type= !!(s->flags2 & CODEC_FLAG2_NON_LINEAR_QUANT);
325 if(avctx->rc_max_rate && !avctx->rc_buffer_size){
326 av_log(avctx, AV_LOG_ERROR, "a vbv buffer size is needed, for encoding with a maximum bitrate\n");
330 if(avctx->rc_min_rate && avctx->rc_max_rate != avctx->rc_min_rate){
331 av_log(avctx, AV_LOG_INFO, "Warning min_rate > 0 but min_rate != max_rate isn't recommended!\n");
334 if(avctx->rc_min_rate && avctx->rc_min_rate > avctx->bit_rate){
335 av_log(avctx, AV_LOG_ERROR, "bitrate below min bitrate\n");
339 if(avctx->rc_max_rate && avctx->rc_max_rate < avctx->bit_rate){
340 av_log(avctx, AV_LOG_INFO, "bitrate above max bitrate\n");
344 if(avctx->rc_buffer_size && avctx->bit_rate*av_q2d(avctx->time_base) > avctx->rc_buffer_size){
345 av_log(avctx, AV_LOG_ERROR, "VBV buffer too small for bitrate\n");
349 if(avctx->bit_rate*av_q2d(avctx->time_base) > avctx->bit_rate_tolerance){
350 av_log(avctx, AV_LOG_ERROR, "bitrate tolerance too small for bitrate\n");
354 if( s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate
355 && (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO)
356 && 90000LL * (avctx->rc_buffer_size-1) > s->avctx->rc_max_rate*0xFFFFLL){
358 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");
361 if((s->flags & CODEC_FLAG_4MV) && s->codec_id != CODEC_ID_MPEG4
362 && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P && s->codec_id != CODEC_ID_FLV1){
363 av_log(avctx, AV_LOG_ERROR, "4MV not supported by codec\n");
367 if(s->obmc && s->avctx->mb_decision != FF_MB_DECISION_SIMPLE){
368 av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with simple mb decision\n");
372 if(s->obmc && s->codec_id != CODEC_ID_H263 && s->codec_id != CODEC_ID_H263P){
373 av_log(avctx, AV_LOG_ERROR, "OBMC is only supported with H263(+)\n");
377 if(s->quarter_sample && s->codec_id != CODEC_ID_MPEG4){
378 av_log(avctx, AV_LOG_ERROR, "qpel not supported by codec\n");
382 if(s->data_partitioning && s->codec_id != CODEC_ID_MPEG4){
383 av_log(avctx, AV_LOG_ERROR, "data partitioning not supported by codec\n");
387 if(s->max_b_frames && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO){
388 av_log(avctx, AV_LOG_ERROR, "b frames not supported by codec\n");
392 if((s->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN))
393 && s->codec_id != CODEC_ID_MPEG4 && s->codec_id != CODEC_ID_MPEG2VIDEO){
394 av_log(avctx, AV_LOG_ERROR, "interlacing not supported by codec\n");
398 if(s->mpeg_quant && s->codec_id != CODEC_ID_MPEG4){ //FIXME mpeg2 uses that too
399 av_log(avctx, AV_LOG_ERROR, "mpeg2 style quantization not supported by codec\n");
403 if((s->flags & CODEC_FLAG_CBP_RD) && !(s->flags & CODEC_FLAG_TRELLIS_QUANT)){
404 av_log(avctx, AV_LOG_ERROR, "CBP RD needs trellis quant\n");
408 if((s->flags & CODEC_FLAG_QP_RD) && s->avctx->mb_decision != FF_MB_DECISION_RD){
409 av_log(avctx, AV_LOG_ERROR, "QP RD needs mbd=2\n");
413 if(s->avctx->scenechange_threshold < 1000000000 && (s->flags & CODEC_FLAG_CLOSED_GOP)){
414 av_log(avctx, AV_LOG_ERROR, "closed gop with scene change detection arent supported yet, set threshold to 1000000000\n");
418 if((s->flags2 & CODEC_FLAG2_INTRA_VLC) && s->codec_id != CODEC_ID_MPEG2VIDEO){
419 av_log(avctx, AV_LOG_ERROR, "intra vlc table not supported by codec\n");
423 if(s->flags & CODEC_FLAG_LOW_DELAY){
424 if (s->codec_id != CODEC_ID_MPEG2VIDEO && s->codec_id != CODEC_ID_MPEG1VIDEO){
425 av_log(avctx, AV_LOG_ERROR, "low delay forcing is only available for mpeg1/2\n");
428 if (s->max_b_frames != 0){
429 av_log(avctx, AV_LOG_ERROR, "b frames cannot be used with low delay\n");
434 if(s->q_scale_type == 1){
435 if(s->codec_id != CODEC_ID_MPEG2VIDEO){
436 av_log(avctx, AV_LOG_ERROR, "non linear quant is only available for mpeg2\n");
439 if(avctx->qmax > 12){
440 av_log(avctx, AV_LOG_ERROR, "non linear quant only supports qmax <= 12 currently\n");
445 if(s->avctx->thread_count > 1 && s->codec_id != CODEC_ID_MPEG4
446 && s->codec_id != CODEC_ID_MPEG1VIDEO && s->codec_id != CODEC_ID_MPEG2VIDEO
447 && (s->codec_id != CODEC_ID_H263P || !(s->flags & CODEC_FLAG_H263P_SLICE_STRUCT))){
448 av_log(avctx, AV_LOG_ERROR, "multi threaded encoding not supported by codec\n");
452 if(s->avctx->thread_count > 1)
455 if(!avctx->time_base.den || !avctx->time_base.num){
456 av_log(avctx, AV_LOG_ERROR, "framerate not set\n");
460 i= (INT_MAX/2+128)>>8;
461 if(avctx->me_threshold >= i){
462 av_log(avctx, AV_LOG_ERROR, "me_threshold too large, max is %d\n", i - 1);
465 if(avctx->mb_threshold >= i){
466 av_log(avctx, AV_LOG_ERROR, "mb_threshold too large, max is %d\n", i - 1);
470 if(avctx->b_frame_strategy && (avctx->flags&CODEC_FLAG_PASS2)){
471 av_log(avctx, AV_LOG_INFO, "notice: b_frame_strategy only affects the first pass\n");
472 avctx->b_frame_strategy = 0;
475 i= ff_gcd(avctx->time_base.den, avctx->time_base.num);
477 av_log(avctx, AV_LOG_INFO, "removing common factors from framerate\n");
478 avctx->time_base.den /= i;
479 avctx->time_base.num /= i;
483 if(s->codec_id==CODEC_ID_MJPEG){
484 s->intra_quant_bias= 1<<(QUANT_BIAS_SHIFT-1); //(a + x/2)/x
485 s->inter_quant_bias= 0;
486 }else if(s->mpeg_quant || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO){
487 s->intra_quant_bias= 3<<(QUANT_BIAS_SHIFT-3); //(a + x*3/8)/x
488 s->inter_quant_bias= 0;
490 s->intra_quant_bias=0;
491 s->inter_quant_bias=-(1<<(QUANT_BIAS_SHIFT-2)); //(a - x/4)/x
494 if(avctx->intra_quant_bias != FF_DEFAULT_QUANT_BIAS)
495 s->intra_quant_bias= avctx->intra_quant_bias;
496 if(avctx->inter_quant_bias != FF_DEFAULT_QUANT_BIAS)
497 s->inter_quant_bias= avctx->inter_quant_bias;
499 avcodec_get_chroma_sub_sample(avctx->pix_fmt, &chroma_h_shift, &chroma_v_shift);
501 if(avctx->codec_id == CODEC_ID_MPEG4 && s->avctx->time_base.den > (1<<16)-1){
502 av_log(avctx, AV_LOG_ERROR, "timebase not supported by mpeg 4 standard\n");
505 s->time_increment_bits = av_log2(s->avctx->time_base.den - 1) + 1;
507 switch(avctx->codec->id) {
508 case CODEC_ID_MPEG1VIDEO:
509 s->out_format = FMT_MPEG1;
510 s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
511 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
513 case CODEC_ID_MPEG2VIDEO:
514 s->out_format = FMT_MPEG1;
515 s->low_delay= !!(s->flags & CODEC_FLAG_LOW_DELAY);
516 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
521 s->out_format = FMT_MJPEG;
522 s->intra_only = 1; /* force intra only for jpeg */
523 s->mjpeg_vsample[0] = 2;
524 s->mjpeg_vsample[1] = 2>>chroma_v_shift;
525 s->mjpeg_vsample[2] = 2>>chroma_v_shift;
526 s->mjpeg_hsample[0] = 2;
527 s->mjpeg_hsample[1] = 2>>chroma_h_shift;
528 s->mjpeg_hsample[2] = 2>>chroma_h_shift;
529 if (!(ENABLE_MJPEG_ENCODER || ENABLE_LJPEG_ENCODER)
530 || ff_mjpeg_encode_init(s) < 0)
536 if (!ENABLE_H261_ENCODER) return -1;
537 if (ff_h261_get_picture_format(s->width, s->height) < 0) {
538 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);
541 s->out_format = FMT_H261;
546 if (h263_get_picture_format(s->width, s->height) == 7) {
547 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);
550 s->out_format = FMT_H263;
551 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
556 s->out_format = FMT_H263;
559 s->umvplus = (avctx->flags & CODEC_FLAG_H263P_UMV) ? 1:0;
560 s->h263_aic= (avctx->flags & CODEC_FLAG_AC_PRED) ? 1:0;
561 s->modified_quant= s->h263_aic;
562 s->alt_inter_vlc= (avctx->flags & CODEC_FLAG_H263P_AIV) ? 1:0;
563 s->obmc= (avctx->flags & CODEC_FLAG_OBMC) ? 1:0;
564 s->loop_filter= (avctx->flags & CODEC_FLAG_LOOP_FILTER) ? 1:0;
565 s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
566 s->h263_slice_structured= (s->flags & CODEC_FLAG_H263P_SLICE_STRUCT) ? 1:0;
569 /* These are just to be sure */
574 s->out_format = FMT_H263;
575 s->h263_flv = 2; /* format = 1; 11-bit codes */
576 s->unrestricted_mv = 1;
577 s->rtp_mode=0; /* don't allow GOB */
582 s->out_format = FMT_H263;
587 s->out_format = FMT_H263;
594 s->unrestricted_mv= s->obmc || s->loop_filter || s->umvplus;
597 s->out_format = FMT_H263;
599 s->unrestricted_mv = 1;
600 s->low_delay= s->max_b_frames ? 0 : 1;
601 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
603 case CODEC_ID_MSMPEG4V1:
604 s->out_format = FMT_H263;
607 s->unrestricted_mv = 1;
608 s->msmpeg4_version= 1;
612 case CODEC_ID_MSMPEG4V2:
613 s->out_format = FMT_H263;
616 s->unrestricted_mv = 1;
617 s->msmpeg4_version= 2;
621 case CODEC_ID_MSMPEG4V3:
622 s->out_format = FMT_H263;
625 s->unrestricted_mv = 1;
626 s->msmpeg4_version= 3;
627 s->flipflop_rounding=1;
632 s->out_format = FMT_H263;
635 s->unrestricted_mv = 1;
636 s->msmpeg4_version= 4;
637 s->flipflop_rounding=1;
642 s->out_format = FMT_H263;
645 s->unrestricted_mv = 1;
646 s->msmpeg4_version= 5;
647 s->flipflop_rounding=1;
655 avctx->has_b_frames= !s->low_delay;
660 if (MPV_common_init(s) < 0)
664 s->dct_quantize = dct_quantize_c;
666 s->denoise_dct = denoise_dct_c;
667 s->fast_dct_quantize = s->dct_quantize;
668 if(s->flags & CODEC_FLAG_TRELLIS_QUANT)
669 s->dct_quantize = dct_quantize_trellis_c;
671 if(s->modified_quant)
672 s->chroma_qscale_table= ff_h263_chroma_qscale_table;
673 s->progressive_frame=
674 s->progressive_sequence= !(avctx->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME|CODEC_FLAG_ALT_SCAN));
675 s->quant_precision=5;
677 ff_set_cmp(&s->dsp, s->dsp.ildct_cmp, s->avctx->ildct_cmp);
678 ff_set_cmp(&s->dsp, s->dsp.frame_skip_cmp, s->avctx->frame_skip_cmp);
680 if (ENABLE_H261_ENCODER && s->out_format == FMT_H261)
681 ff_h261_encode_init(s);
682 if (s->out_format == FMT_H263)
684 if (ENABLE_MSMPEG4_ENCODER && s->msmpeg4_version)
685 ff_msmpeg4_encode_init(s);
686 if ((ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER)
687 && s->out_format == FMT_MPEG1)
688 ff_mpeg1_encode_init(s);
692 int j= s->dsp.idct_permutation[i];
693 if(s->codec_id==CODEC_ID_MPEG4 && s->mpeg_quant){
694 s->intra_matrix[j] = ff_mpeg4_default_intra_matrix[i];
695 s->inter_matrix[j] = ff_mpeg4_default_non_intra_matrix[i];
696 }else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){
698 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
701 s->intra_matrix[j] = ff_mpeg1_default_intra_matrix[i];
702 s->inter_matrix[j] = ff_mpeg1_default_non_intra_matrix[i];
704 if(s->avctx->intra_matrix)
705 s->intra_matrix[j] = s->avctx->intra_matrix[i];
706 if(s->avctx->inter_matrix)
707 s->inter_matrix[j] = s->avctx->inter_matrix[i];
710 /* precompute matrix */
711 /* for mjpeg, we do include qscale in the matrix */
712 if (s->out_format != FMT_MJPEG) {
713 convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
714 s->intra_matrix, s->intra_quant_bias, avctx->qmin, 31, 1);
715 convert_matrix(&s->dsp, s->q_inter_matrix, s->q_inter_matrix16,
716 s->inter_matrix, s->inter_quant_bias, avctx->qmin, 31, 0);
719 if(ff_rate_control_init(s) < 0)
725 int MPV_encode_end(AVCodecContext *avctx)
727 MpegEncContext *s = avctx->priv_data;
729 ff_rate_control_uninit(s);
732 if ((ENABLE_MJPEG_ENCODER || ENABLE_LJPEG_ENCODER) && s->out_format == FMT_MJPEG)
733 ff_mjpeg_encode_close(s);
735 av_freep(&avctx->extradata);
740 static int get_sae(uint8_t *src, int ref, int stride){
746 acc+= FFABS(src[x+y*stride] - ref);
753 static int get_intra_count(MpegEncContext *s, uint8_t *src, uint8_t *ref, int stride){
760 for(y=0; y<h; y+=16){
761 for(x=0; x<w; x+=16){
762 int offset= x + y*stride;
763 int sad = s->dsp.sad[0](NULL, src + offset, ref + offset, stride, 16);
764 int mean= (s->dsp.pix_sum(src + offset, stride) + 128)>>8;
765 int sae = get_sae(src + offset, mean, stride);
767 acc+= sae + 500 < sad;
774 static int load_input_picture(MpegEncContext *s, AVFrame *pic_arg){
778 const int encoding_delay= s->max_b_frames;
783 pic_arg->display_picture_number= s->input_picture_number++;
785 if(pts != AV_NOPTS_VALUE){
786 if(s->user_specified_pts != AV_NOPTS_VALUE){
788 int64_t last= s->user_specified_pts;
791 av_log(s->avctx, AV_LOG_ERROR, "Error, Invalid timestamp=%"PRId64", last=%"PRId64"\n", pts, s->user_specified_pts);
795 s->user_specified_pts= pts;
797 if(s->user_specified_pts != AV_NOPTS_VALUE){
798 s->user_specified_pts=
799 pts= s->user_specified_pts + 1;
800 av_log(s->avctx, AV_LOG_INFO, "Warning: AVFrame.pts=? trying to guess (%"PRId64")\n", pts);
802 pts= pic_arg->display_picture_number;
808 if(encoding_delay && !(s->flags&CODEC_FLAG_INPUT_PRESERVED)) direct=0;
809 if(pic_arg->linesize[0] != s->linesize) direct=0;
810 if(pic_arg->linesize[1] != s->uvlinesize) direct=0;
811 if(pic_arg->linesize[2] != s->uvlinesize) direct=0;
813 // av_log(AV_LOG_DEBUG, "%d %d %d %d\n",pic_arg->linesize[0], pic_arg->linesize[1], s->linesize, s->uvlinesize);
816 i= ff_find_unused_picture(s, 1);
818 pic= (AVFrame*)&s->picture[i];
822 pic->data[i]= pic_arg->data[i];
823 pic->linesize[i]= pic_arg->linesize[i];
825 alloc_picture(s, (Picture*)pic, 1);
827 i= ff_find_unused_picture(s, 0);
829 pic= (AVFrame*)&s->picture[i];
832 alloc_picture(s, (Picture*)pic, 0);
834 if( pic->data[0] + INPLACE_OFFSET == pic_arg->data[0]
835 && pic->data[1] + INPLACE_OFFSET == pic_arg->data[1]
836 && pic->data[2] + INPLACE_OFFSET == pic_arg->data[2]){
839 int h_chroma_shift, v_chroma_shift;
840 avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift);
843 int src_stride= pic_arg->linesize[i];
844 int dst_stride= i ? s->uvlinesize : s->linesize;
845 int h_shift= i ? h_chroma_shift : 0;
846 int v_shift= i ? v_chroma_shift : 0;
847 int w= s->width >>h_shift;
848 int h= s->height>>v_shift;
849 uint8_t *src= pic_arg->data[i];
850 uint8_t *dst= pic->data[i];
852 if(!s->avctx->rc_buffer_size)
853 dst +=INPLACE_OFFSET;
855 if(src_stride==dst_stride)
856 memcpy(dst, src, src_stride*h);
867 copy_picture_attributes(s, pic, pic_arg);
868 pic->pts= pts; //we set this here to avoid modifiying pic_arg
871 /* shift buffer entries */
872 for(i=1; i<MAX_PICTURE_COUNT /*s->encoding_delay+1*/; i++)
873 s->input_picture[i-1]= s->input_picture[i];
875 s->input_picture[encoding_delay]= (Picture*)pic;
880 static int skip_check(MpegEncContext *s, Picture *p, Picture *ref){
885 for(plane=0; plane<3; plane++){
886 const int stride= p->linesize[plane];
887 const int bw= plane ? 1 : 2;
888 for(y=0; y<s->mb_height*bw; y++){
889 for(x=0; x<s->mb_width*bw; x++){
890 int off= p->type == FF_BUFFER_TYPE_SHARED ? 0: 16;
891 int v= s->dsp.frame_skip_cmp[1](s, p->data[plane] + 8*(x + y*stride)+off, ref->data[plane] + 8*(x + y*stride), stride, 8);
893 switch(s->avctx->frame_skip_exp){
894 case 0: score= FFMAX(score, v); break;
895 case 1: score+= FFABS(v);break;
896 case 2: score+= v*v;break;
897 case 3: score64+= FFABS(v*v*(int64_t)v);break;
898 case 4: score64+= v*v*(int64_t)(v*v);break;
904 if(score) score64= score;
906 if(score64 < s->avctx->frame_skip_threshold)
908 if(score64 < ((s->avctx->frame_skip_factor * (int64_t)s->lambda)>>8))
913 static int estimate_best_b_count(MpegEncContext *s){
914 AVCodec *codec= avcodec_find_encoder(s->avctx->codec_id);
915 AVCodecContext *c= avcodec_alloc_context();
916 AVFrame input[FF_MAX_B_FRAMES+2];
917 const int scale= s->avctx->brd_scale;
918 int i, j, out_size, p_lambda, b_lambda, lambda2;
919 int outbuf_size= s->width * s->height; //FIXME
920 uint8_t *outbuf= av_malloc(outbuf_size);
921 int64_t best_rd= INT64_MAX;
922 int best_b_count= -1;
924 assert(scale>=0 && scale <=3);
927 p_lambda= s->last_lambda_for[P_TYPE]; //s->next_picture_ptr->quality;
928 b_lambda= s->last_lambda_for[B_TYPE]; //p_lambda *FFABS(s->avctx->b_quant_factor) + s->avctx->b_quant_offset;
929 if(!b_lambda) b_lambda= p_lambda; //FIXME we should do this somewhere else
930 lambda2= (b_lambda*b_lambda + (1<<FF_LAMBDA_SHIFT)/2 ) >> FF_LAMBDA_SHIFT;
932 c->width = s->width >> scale;
933 c->height= s->height>> scale;
934 c->flags= CODEC_FLAG_QSCALE | CODEC_FLAG_PSNR | CODEC_FLAG_INPUT_PRESERVED /*| CODEC_FLAG_EMU_EDGE*/;
935 c->flags|= s->avctx->flags & CODEC_FLAG_QPEL;
936 c->mb_decision= s->avctx->mb_decision;
937 c->me_cmp= s->avctx->me_cmp;
938 c->mb_cmp= s->avctx->mb_cmp;
939 c->me_sub_cmp= s->avctx->me_sub_cmp;
940 c->pix_fmt = PIX_FMT_YUV420P;
941 c->time_base= s->avctx->time_base;
942 c->max_b_frames= s->max_b_frames;
944 if (avcodec_open(c, codec) < 0)
947 for(i=0; i<s->max_b_frames+2; i++){
948 int ysize= c->width*c->height;
949 int csize= (c->width/2)*(c->height/2);
950 Picture pre_input, *pre_input_ptr= i ? s->input_picture[i-1] : s->next_picture_ptr;
952 avcodec_get_frame_defaults(&input[i]);
953 input[i].data[0]= av_malloc(ysize + 2*csize);
954 input[i].data[1]= input[i].data[0] + ysize;
955 input[i].data[2]= input[i].data[1] + csize;
956 input[i].linesize[0]= c->width;
957 input[i].linesize[1]=
958 input[i].linesize[2]= c->width/2;
960 if(pre_input_ptr && (!i || s->input_picture[i-1])) {
961 pre_input= *pre_input_ptr;
963 if(pre_input.type != FF_BUFFER_TYPE_SHARED && i) {
964 pre_input.data[0]+=INPLACE_OFFSET;
965 pre_input.data[1]+=INPLACE_OFFSET;
966 pre_input.data[2]+=INPLACE_OFFSET;
969 s->dsp.shrink[scale](input[i].data[0], input[i].linesize[0], pre_input.data[0], pre_input.linesize[0], c->width, c->height);
970 s->dsp.shrink[scale](input[i].data[1], input[i].linesize[1], pre_input.data[1], pre_input.linesize[1], c->width>>1, c->height>>1);
971 s->dsp.shrink[scale](input[i].data[2], input[i].linesize[2], pre_input.data[2], pre_input.linesize[2], c->width>>1, c->height>>1);
975 for(j=0; j<s->max_b_frames+1; j++){
978 if(!s->input_picture[j])
981 c->error[0]= c->error[1]= c->error[2]= 0;
983 input[0].pict_type= I_TYPE;
984 input[0].quality= 1 * FF_QP2LAMBDA;
985 out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[0]);
986 // rd += (out_size * lambda2) >> FF_LAMBDA_SHIFT;
988 for(i=0; i<s->max_b_frames+1; i++){
989 int is_p= i % (j+1) == j || i==s->max_b_frames;
991 input[i+1].pict_type= is_p ? P_TYPE : B_TYPE;
992 input[i+1].quality= is_p ? p_lambda : b_lambda;
993 out_size = avcodec_encode_video(c, outbuf, outbuf_size, &input[i+1]);
994 rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
997 /* get the delayed frames */
999 out_size = avcodec_encode_video(c, outbuf, outbuf_size, NULL);
1000 rd += (out_size * lambda2) >> (FF_LAMBDA_SHIFT - 3);
1003 rd += c->error[0] + c->error[1] + c->error[2];
1015 for(i=0; i<s->max_b_frames+2; i++){
1016 av_freep(&input[i].data[0]);
1019 return best_b_count;
1022 static void select_input_picture(MpegEncContext *s){
1025 for(i=1; i<MAX_PICTURE_COUNT; i++)
1026 s->reordered_input_picture[i-1]= s->reordered_input_picture[i];
1027 s->reordered_input_picture[MAX_PICTURE_COUNT-1]= NULL;
1029 /* set next picture type & ordering */
1030 if(s->reordered_input_picture[0]==NULL && s->input_picture[0]){
1031 if(/*s->picture_in_gop_number >= s->gop_size ||*/ s->next_picture_ptr==NULL || s->intra_only){
1032 s->reordered_input_picture[0]= s->input_picture[0];
1033 s->reordered_input_picture[0]->pict_type= I_TYPE;
1034 s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1038 if(s->avctx->frame_skip_threshold || s->avctx->frame_skip_factor){
1039 if(s->picture_in_gop_number < s->gop_size && skip_check(s, s->input_picture[0], s->next_picture_ptr)){
1040 //FIXME check that te gop check above is +-1 correct
1041 //av_log(NULL, AV_LOG_DEBUG, "skip %p %"PRId64"\n", s->input_picture[0]->data[0], s->input_picture[0]->pts);
1043 if(s->input_picture[0]->type == FF_BUFFER_TYPE_SHARED){
1045 s->input_picture[0]->data[i]= NULL;
1046 s->input_picture[0]->type= 0;
1048 assert( s->input_picture[0]->type==FF_BUFFER_TYPE_USER
1049 || s->input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1051 s->avctx->release_buffer(s->avctx, (AVFrame*)s->input_picture[0]);
1055 ff_vbv_update(s, 0);
1061 if(s->flags&CODEC_FLAG_PASS2){
1062 for(i=0; i<s->max_b_frames+1; i++){
1063 int pict_num= s->input_picture[0]->display_picture_number + i;
1065 if(pict_num >= s->rc_context.num_entries)
1067 if(!s->input_picture[i]){
1068 s->rc_context.entry[pict_num-1].new_pict_type = P_TYPE;
1072 s->input_picture[i]->pict_type=
1073 s->rc_context.entry[pict_num].new_pict_type;
1077 if(s->avctx->b_frame_strategy==0){
1078 b_frames= s->max_b_frames;
1079 while(b_frames && !s->input_picture[b_frames]) b_frames--;
1080 }else if(s->avctx->b_frame_strategy==1){
1081 for(i=1; i<s->max_b_frames+1; i++){
1082 if(s->input_picture[i] && s->input_picture[i]->b_frame_score==0){
1083 s->input_picture[i]->b_frame_score=
1084 get_intra_count(s, s->input_picture[i ]->data[0],
1085 s->input_picture[i-1]->data[0], s->linesize) + 1;
1088 for(i=0; i<s->max_b_frames+1; i++){
1089 if(s->input_picture[i]==NULL || s->input_picture[i]->b_frame_score - 1 > s->mb_num/s->avctx->b_sensitivity) break;
1092 b_frames= FFMAX(0, i-1);
1095 for(i=0; i<b_frames+1; i++){
1096 s->input_picture[i]->b_frame_score=0;
1098 }else if(s->avctx->b_frame_strategy==2){
1099 b_frames= estimate_best_b_count(s);
1101 av_log(s->avctx, AV_LOG_ERROR, "illegal b frame strategy\n");
1106 //static int b_count=0;
1107 //b_count+= b_frames;
1108 //av_log(s->avctx, AV_LOG_DEBUG, "b_frames: %d\n", b_count);
1110 for(i= b_frames - 1; i>=0; i--){
1111 int type= s->input_picture[i]->pict_type;
1112 if(type && type != B_TYPE)
1115 if(s->input_picture[b_frames]->pict_type == B_TYPE && b_frames == s->max_b_frames){
1116 av_log(s->avctx, AV_LOG_ERROR, "warning, too many b frames in a row\n");
1119 if(s->picture_in_gop_number + b_frames >= s->gop_size){
1120 if((s->flags2 & CODEC_FLAG2_STRICT_GOP) && s->gop_size > s->picture_in_gop_number){
1121 b_frames= s->gop_size - s->picture_in_gop_number - 1;
1123 if(s->flags & CODEC_FLAG_CLOSED_GOP)
1125 s->input_picture[b_frames]->pict_type= I_TYPE;
1129 if( (s->flags & CODEC_FLAG_CLOSED_GOP)
1131 && s->input_picture[b_frames]->pict_type== I_TYPE)
1134 s->reordered_input_picture[0]= s->input_picture[b_frames];
1135 if(s->reordered_input_picture[0]->pict_type != I_TYPE)
1136 s->reordered_input_picture[0]->pict_type= P_TYPE;
1137 s->reordered_input_picture[0]->coded_picture_number= s->coded_picture_number++;
1138 for(i=0; i<b_frames; i++){
1139 s->reordered_input_picture[i+1]= s->input_picture[i];
1140 s->reordered_input_picture[i+1]->pict_type= B_TYPE;
1141 s->reordered_input_picture[i+1]->coded_picture_number= s->coded_picture_number++;
1146 if(s->reordered_input_picture[0]){
1147 s->reordered_input_picture[0]->reference= s->reordered_input_picture[0]->pict_type!=B_TYPE ? 3 : 0;
1149 copy_picture(&s->new_picture, s->reordered_input_picture[0]);
1151 if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_SHARED || s->avctx->rc_buffer_size){
1152 // input is a shared pix, so we can't modifiy it -> alloc a new one & ensure that the shared one is reuseable
1154 int i= ff_find_unused_picture(s, 0);
1155 Picture *pic= &s->picture[i];
1157 pic->reference = s->reordered_input_picture[0]->reference;
1158 alloc_picture(s, pic, 0);
1160 /* mark us unused / free shared pic */
1161 if(s->reordered_input_picture[0]->type == FF_BUFFER_TYPE_INTERNAL)
1162 s->avctx->release_buffer(s->avctx, (AVFrame*)s->reordered_input_picture[0]);
1164 s->reordered_input_picture[0]->data[i]= NULL;
1165 s->reordered_input_picture[0]->type= 0;
1167 copy_picture_attributes(s, (AVFrame*)pic, (AVFrame*)s->reordered_input_picture[0]);
1169 s->current_picture_ptr= pic;
1171 // input is not a shared pix -> reuse buffer for current_pix
1173 assert( s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_USER
1174 || s->reordered_input_picture[0]->type==FF_BUFFER_TYPE_INTERNAL);
1176 s->current_picture_ptr= s->reordered_input_picture[0];
1178 s->new_picture.data[i]+= INPLACE_OFFSET;
1181 copy_picture(&s->current_picture, s->current_picture_ptr);
1183 s->picture_number= s->new_picture.display_picture_number;
1184 //printf("dpn:%d\n", s->picture_number);
1186 memset(&s->new_picture, 0, sizeof(Picture));
1190 int MPV_encode_picture(AVCodecContext *avctx,
1191 unsigned char *buf, int buf_size, void *data)
1193 MpegEncContext *s = avctx->priv_data;
1194 AVFrame *pic_arg = data;
1195 int i, stuffing_count;
1197 for(i=0; i<avctx->thread_count; i++){
1198 int start_y= s->thread_context[i]->start_mb_y;
1199 int end_y= s->thread_context[i]-> end_mb_y;
1200 int h= s->mb_height;
1201 uint8_t *start= buf + (size_t)(((int64_t) buf_size)*start_y/h);
1202 uint8_t *end = buf + (size_t)(((int64_t) buf_size)* end_y/h);
1204 init_put_bits(&s->thread_context[i]->pb, start, end - start);
1207 s->picture_in_gop_number++;
1209 if(load_input_picture(s, pic_arg) < 0)
1212 select_input_picture(s);
1215 if(s->new_picture.data[0]){
1216 s->pict_type= s->new_picture.pict_type;
1218 //printf("qs:%f %f %d\n", s->new_picture.quality, s->current_picture.quality, s->qscale);
1219 MPV_frame_start(s, avctx);
1221 if (encode_picture(s, s->picture_number) < 0)
1224 avctx->real_pict_num = s->picture_number;
1225 avctx->header_bits = s->header_bits;
1226 avctx->mv_bits = s->mv_bits;
1227 avctx->misc_bits = s->misc_bits;
1228 avctx->i_tex_bits = s->i_tex_bits;
1229 avctx->p_tex_bits = s->p_tex_bits;
1230 avctx->i_count = s->i_count;
1231 avctx->p_count = s->mb_num - s->i_count - s->skip_count; //FIXME f/b_count in avctx
1232 avctx->skip_count = s->skip_count;
1236 if (ENABLE_MJPEG_ENCODER && s->out_format == FMT_MJPEG)
1237 ff_mjpeg_encode_picture_trailer(s);
1239 if(avctx->rc_buffer_size){
1240 RateControlContext *rcc= &s->rc_context;
1241 int max_size= rcc->buffer_index/3;
1243 if(put_bits_count(&s->pb) > max_size && s->lambda < s->avctx->lmax){
1244 s->next_lambda= FFMAX(s->lambda+1, s->lambda*(s->qscale+1) / s->qscale);
1245 if(s->adaptive_quant){
1247 for(i=0; i<s->mb_height*s->mb_stride; i++)
1248 s->lambda_table[i]= FFMAX(s->lambda_table[i]+1, s->lambda_table[i]*(s->qscale+1) / s->qscale);
1250 s->mb_skipped = 0; //done in MPV_frame_start()
1251 if(s->pict_type==P_TYPE){ //done in encode_picture() so we must undo it
1252 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
1253 s->no_rounding ^= 1;
1255 if(s->pict_type!=B_TYPE){
1256 s->time_base= s->last_time_base;
1257 s->last_non_b_time= s->time - s->pp_time;
1259 // av_log(NULL, AV_LOG_ERROR, "R:%d ", s->next_lambda);
1260 for(i=0; i<avctx->thread_count; i++){
1261 PutBitContext *pb= &s->thread_context[i]->pb;
1262 init_put_bits(pb, pb->buf, pb->buf_end - pb->buf);
1267 assert(s->avctx->rc_max_rate);
1270 if(s->flags&CODEC_FLAG_PASS1)
1271 ff_write_pass1_stats(s);
1274 s->current_picture_ptr->error[i]= s->current_picture.error[i];
1275 avctx->error[i] += s->current_picture_ptr->error[i];
1278 if(s->flags&CODEC_FLAG_PASS1)
1279 assert(avctx->header_bits + avctx->mv_bits + avctx->misc_bits + avctx->i_tex_bits + avctx->p_tex_bits == put_bits_count(&s->pb));
1280 flush_put_bits(&s->pb);
1281 s->frame_bits = put_bits_count(&s->pb);
1283 stuffing_count= ff_vbv_update(s, s->frame_bits);
1285 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < stuffing_count + 50){
1286 av_log(s->avctx, AV_LOG_ERROR, "stuffing too large\n");
1290 switch(s->codec_id){
1291 case CODEC_ID_MPEG1VIDEO:
1292 case CODEC_ID_MPEG2VIDEO:
1293 while(stuffing_count--){
1294 put_bits(&s->pb, 8, 0);
1297 case CODEC_ID_MPEG4:
1298 put_bits(&s->pb, 16, 0);
1299 put_bits(&s->pb, 16, 0x1C3);
1300 stuffing_count -= 4;
1301 while(stuffing_count--){
1302 put_bits(&s->pb, 8, 0xFF);
1306 av_log(s->avctx, AV_LOG_ERROR, "vbv buffer overflow\n");
1308 flush_put_bits(&s->pb);
1309 s->frame_bits = put_bits_count(&s->pb);
1312 /* update mpeg1/2 vbv_delay for CBR */
1313 if(s->avctx->rc_max_rate && s->avctx->rc_min_rate == s->avctx->rc_max_rate && s->out_format == FMT_MPEG1
1314 && 90000LL * (avctx->rc_buffer_size-1) <= s->avctx->rc_max_rate*0xFFFFLL){
1317 assert(s->repeat_first_field==0);
1319 vbv_delay= lrintf(90000 * s->rc_context.buffer_index / s->avctx->rc_max_rate);
1320 assert(vbv_delay < 0xFFFF);
1322 s->vbv_delay_ptr[0] &= 0xF8;
1323 s->vbv_delay_ptr[0] |= vbv_delay>>13;
1324 s->vbv_delay_ptr[1] = vbv_delay>>5;
1325 s->vbv_delay_ptr[2] &= 0x07;
1326 s->vbv_delay_ptr[2] |= vbv_delay<<3;
1328 s->total_bits += s->frame_bits;
1329 avctx->frame_bits = s->frame_bits;
1331 assert((pbBufPtr(&s->pb) == s->pb.buf));
1334 assert((s->frame_bits&7)==0);
1336 return s->frame_bits/8;
1339 static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold)
1341 static const char tab[64]=
1353 DCTELEM *block= s->block[n];
1354 const int last_index= s->block_last_index[n];
1359 threshold= -threshold;
1363 /* are all which we could set to zero are allready zero? */
1364 if(last_index<=skip_dc - 1) return;
1366 for(i=0; i<=last_index; i++){
1367 const int j = s->intra_scantable.permutated[i];
1368 const int level = FFABS(block[j]);
1370 if(skip_dc && i==0) continue;
1379 if(score >= threshold) return;
1380 for(i=skip_dc; i<=last_index; i++){
1381 const int j = s->intra_scantable.permutated[i];
1384 if(block[0]) s->block_last_index[n]= 0;
1385 else s->block_last_index[n]= -1;
1388 static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1391 const int maxlevel= s->max_qcoeff;
1392 const int minlevel= s->min_qcoeff;
1396 i=1; //skip clipping of intra dc
1400 for(;i<=last_index; i++){
1401 const int j= s->intra_scantable.permutated[i];
1402 int level = block[j];
1404 if (level>maxlevel){
1407 }else if(level<minlevel){
1415 if(overflow && s->avctx->mb_decision == FF_MB_DECISION_SIMPLE)
1416 av_log(s->avctx, AV_LOG_INFO, "warning, clipping %d dct coefficients to %d..%d\n", overflow, minlevel, maxlevel);
1419 static void get_vissual_weight(int16_t *weight, uint8_t *ptr, int stride){
1429 for(y2= FFMAX(y-1, 0); y2 < FFMIN(8, y+2); y2++){
1430 for(x2= FFMAX(x-1, 0); x2 < FFMIN(8, x+2); x2++){
1431 int v= ptr[x2 + y2*stride];
1437 weight[x + 8*y]= (36*ff_sqrt(count*sqr - sum*sum)) / count;
1442 static av_always_inline void encode_mb_internal(MpegEncContext *s, int motion_x, int motion_y, int mb_block_height, int mb_block_count)
1444 int16_t weight[8][64];
1445 DCTELEM orig[8][64];
1446 const int mb_x= s->mb_x;
1447 const int mb_y= s->mb_y;
1450 int dct_offset = s->linesize*8; //default for progressive frames
1451 uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1454 for(i=0; i<mb_block_count; i++) skip_dct[i]=s->skipdct;
1456 if(s->adaptive_quant){
1457 const int last_qp= s->qscale;
1458 const int mb_xy= mb_x + mb_y*s->mb_stride;
1460 s->lambda= s->lambda_table[mb_xy];
1463 if(!(s->flags&CODEC_FLAG_QP_RD)){
1464 s->qscale= s->current_picture_ptr->qscale_table[mb_xy];
1465 s->dquant= s->qscale - last_qp;
1467 if(s->out_format==FMT_H263){
1468 s->dquant= av_clip(s->dquant, -2, 2);
1470 if(s->codec_id==CODEC_ID_MPEG4){
1472 if(s->pict_type == B_TYPE){
1473 if(s->dquant&1 || s->mv_dir&MV_DIRECT)
1476 if(s->mv_type==MV_TYPE_8X8)
1482 ff_set_qscale(s, last_qp + s->dquant);
1483 }else if(s->flags&CODEC_FLAG_QP_RD)
1484 ff_set_qscale(s, s->qscale + s->dquant);
1486 wrap_y = s->linesize;
1487 wrap_c = s->uvlinesize;
1488 ptr_y = s->new_picture.data[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
1489 ptr_cb = s->new_picture.data[1] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1490 ptr_cr = s->new_picture.data[2] + (mb_y * mb_block_height * wrap_c) + mb_x * 8;
1492 if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
1493 uint8_t *ebuf= s->edge_emu_buffer + 32;
1494 ff_emulated_edge_mc(ebuf , ptr_y , wrap_y,16,16,mb_x*16,mb_y*16, s->width , s->height);
1496 ff_emulated_edge_mc(ebuf+18*wrap_y , ptr_cb, wrap_c, 8, mb_block_height, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
1497 ptr_cb= ebuf+18*wrap_y;
1498 ff_emulated_edge_mc(ebuf+18*wrap_y+8, ptr_cr, wrap_c, 8, mb_block_height, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
1499 ptr_cr= ebuf+18*wrap_y+8;
1503 if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1504 int progressive_score, interlaced_score;
1506 s->interlaced_dct=0;
1507 progressive_score= s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y, 8)
1508 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y*8, NULL, wrap_y, 8) - 400;
1510 if(progressive_score > 0){
1511 interlaced_score = s->dsp.ildct_cmp[4](s, ptr_y , NULL, wrap_y*2, 8)
1512 +s->dsp.ildct_cmp[4](s, ptr_y + wrap_y , NULL, wrap_y*2, 8);
1513 if(progressive_score > interlaced_score){
1514 s->interlaced_dct=1;
1518 if (s->chroma_format == CHROMA_422)
1524 s->dsp.get_pixels(s->block[0], ptr_y , wrap_y);
1525 s->dsp.get_pixels(s->block[1], ptr_y + 8, wrap_y);
1526 s->dsp.get_pixels(s->block[2], ptr_y + dct_offset , wrap_y);
1527 s->dsp.get_pixels(s->block[3], ptr_y + dct_offset + 8, wrap_y);
1529 if(s->flags&CODEC_FLAG_GRAY){
1533 s->dsp.get_pixels(s->block[4], ptr_cb, wrap_c);
1534 s->dsp.get_pixels(s->block[5], ptr_cr, wrap_c);
1535 if(!s->chroma_y_shift){ /* 422 */
1536 s->dsp.get_pixels(s->block[6], ptr_cb + (dct_offset>>1), wrap_c);
1537 s->dsp.get_pixels(s->block[7], ptr_cr + (dct_offset>>1), wrap_c);
1541 op_pixels_func (*op_pix)[4];
1542 qpel_mc_func (*op_qpix)[16];
1543 uint8_t *dest_y, *dest_cb, *dest_cr;
1545 dest_y = s->dest[0];
1546 dest_cb = s->dest[1];
1547 dest_cr = s->dest[2];
1549 if ((!s->no_rounding) || s->pict_type==B_TYPE){
1550 op_pix = s->dsp.put_pixels_tab;
1551 op_qpix= s->dsp.put_qpel_pixels_tab;
1553 op_pix = s->dsp.put_no_rnd_pixels_tab;
1554 op_qpix= s->dsp.put_no_rnd_qpel_pixels_tab;
1557 if (s->mv_dir & MV_DIR_FORWARD) {
1558 MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix);
1559 op_pix = s->dsp.avg_pixels_tab;
1560 op_qpix= s->dsp.avg_qpel_pixels_tab;
1562 if (s->mv_dir & MV_DIR_BACKWARD) {
1563 MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix);
1566 if(s->flags&CODEC_FLAG_INTERLACED_DCT){
1567 int progressive_score, interlaced_score;
1569 s->interlaced_dct=0;
1570 progressive_score= s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y, 8)
1571 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y*8, ptr_y + wrap_y*8, wrap_y, 8) - 400;
1573 if(s->avctx->ildct_cmp == FF_CMP_VSSE) progressive_score -= 400;
1575 if(progressive_score>0){
1576 interlaced_score = s->dsp.ildct_cmp[0](s, dest_y , ptr_y , wrap_y*2, 8)
1577 +s->dsp.ildct_cmp[0](s, dest_y + wrap_y , ptr_y + wrap_y , wrap_y*2, 8);
1579 if(progressive_score > interlaced_score){
1580 s->interlaced_dct=1;
1584 if (s->chroma_format == CHROMA_422)
1590 s->dsp.diff_pixels(s->block[0], ptr_y , dest_y , wrap_y);
1591 s->dsp.diff_pixels(s->block[1], ptr_y + 8, dest_y + 8, wrap_y);
1592 s->dsp.diff_pixels(s->block[2], ptr_y + dct_offset , dest_y + dct_offset , wrap_y);
1593 s->dsp.diff_pixels(s->block[3], ptr_y + dct_offset + 8, dest_y + dct_offset + 8, wrap_y);
1595 if(s->flags&CODEC_FLAG_GRAY){
1599 s->dsp.diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
1600 s->dsp.diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
1601 if(!s->chroma_y_shift){ /* 422 */
1602 s->dsp.diff_pixels(s->block[6], ptr_cb + (dct_offset>>1), dest_cb + (dct_offset>>1), wrap_c);
1603 s->dsp.diff_pixels(s->block[7], ptr_cr + (dct_offset>>1), dest_cr + (dct_offset>>1), wrap_c);
1606 /* pre quantization */
1607 if(s->current_picture.mc_mb_var[s->mb_stride*mb_y+ mb_x]<2*s->qscale*s->qscale){
1609 if(s->dsp.sad[1](NULL, ptr_y , dest_y , wrap_y, 8) < 20*s->qscale) skip_dct[0]= 1;
1610 if(s->dsp.sad[1](NULL, ptr_y + 8, dest_y + 8, wrap_y, 8) < 20*s->qscale) skip_dct[1]= 1;
1611 if(s->dsp.sad[1](NULL, ptr_y +dct_offset , dest_y +dct_offset , wrap_y, 8) < 20*s->qscale) skip_dct[2]= 1;
1612 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;
1613 if(s->dsp.sad[1](NULL, ptr_cb , dest_cb , wrap_c, 8) < 20*s->qscale) skip_dct[4]= 1;
1614 if(s->dsp.sad[1](NULL, ptr_cr , dest_cr , wrap_c, 8) < 20*s->qscale) skip_dct[5]= 1;
1615 if(!s->chroma_y_shift){ /* 422 */
1616 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;
1617 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;
1622 if(s->avctx->quantizer_noise_shaping){
1623 if(!skip_dct[0]) get_vissual_weight(weight[0], ptr_y , wrap_y);
1624 if(!skip_dct[1]) get_vissual_weight(weight[1], ptr_y + 8, wrap_y);
1625 if(!skip_dct[2]) get_vissual_weight(weight[2], ptr_y + dct_offset , wrap_y);
1626 if(!skip_dct[3]) get_vissual_weight(weight[3], ptr_y + dct_offset + 8, wrap_y);
1627 if(!skip_dct[4]) get_vissual_weight(weight[4], ptr_cb , wrap_c);
1628 if(!skip_dct[5]) get_vissual_weight(weight[5], ptr_cr , wrap_c);
1629 if(!s->chroma_y_shift){ /* 422 */
1630 if(!skip_dct[6]) get_vissual_weight(weight[6], ptr_cb + (dct_offset>>1), wrap_c);
1631 if(!skip_dct[7]) get_vissual_weight(weight[7], ptr_cr + (dct_offset>>1), wrap_c);
1633 memcpy(orig[0], s->block[0], sizeof(DCTELEM)*64*mb_block_count);
1636 /* DCT & quantize */
1637 assert(s->out_format!=FMT_MJPEG || s->qscale==8);
1639 for(i=0;i<mb_block_count;i++) {
1642 s->block_last_index[i] = s->dct_quantize(s, s->block[i], i, s->qscale, &overflow);
1643 // FIXME we could decide to change to quantizer instead of clipping
1644 // JS: I don't think that would be a good idea it could lower quality instead
1645 // of improve it. Just INTRADC clipping deserves changes in quantizer
1646 if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1648 s->block_last_index[i]= -1;
1650 if(s->avctx->quantizer_noise_shaping){
1651 for(i=0;i<mb_block_count;i++) {
1653 s->block_last_index[i] = dct_quantize_refine(s, s->block[i], weight[i], orig[i], i, s->qscale);
1658 if(s->luma_elim_threshold && !s->mb_intra)
1660 dct_single_coeff_elimination(s, i, s->luma_elim_threshold);
1661 if(s->chroma_elim_threshold && !s->mb_intra)
1662 for(i=4; i<mb_block_count; i++)
1663 dct_single_coeff_elimination(s, i, s->chroma_elim_threshold);
1665 if(s->flags & CODEC_FLAG_CBP_RD){
1666 for(i=0;i<mb_block_count;i++) {
1667 if(s->block_last_index[i] == -1)
1668 s->coded_score[i]= INT_MAX/256;
1673 if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
1674 s->block_last_index[4]=
1675 s->block_last_index[5]= 0;
1677 s->block[5][0]= (1024 + s->c_dc_scale/2)/ s->c_dc_scale;
1680 //non c quantize code returns incorrect block_last_index FIXME
1681 if(s->alternate_scan && s->dct_quantize != dct_quantize_c){
1682 for(i=0; i<mb_block_count; i++){
1684 if(s->block_last_index[i]>0){
1685 for(j=63; j>0; j--){
1686 if(s->block[i][ s->intra_scantable.permutated[j] ]) break;
1688 s->block_last_index[i]= j;
1693 /* huffman encode */
1694 switch(s->codec_id){ //FIXME funct ptr could be slightly faster
1695 case CODEC_ID_MPEG1VIDEO:
1696 case CODEC_ID_MPEG2VIDEO:
1697 if (ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER)
1698 mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1700 case CODEC_ID_MPEG4:
1701 mpeg4_encode_mb(s, s->block, motion_x, motion_y); break;
1702 case CODEC_ID_MSMPEG4V2:
1703 case CODEC_ID_MSMPEG4V3:
1705 if (ENABLE_MSMPEG4_ENCODER)
1706 msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1709 if (ENABLE_WMV2_ENCODER)
1710 ff_wmv2_encode_mb(s, s->block, motion_x, motion_y);
1713 if (ENABLE_H261_ENCODER)
1714 ff_h261_encode_mb(s, s->block, motion_x, motion_y);
1717 case CODEC_ID_H263P:
1721 h263_encode_mb(s, s->block, motion_x, motion_y); break;
1722 case CODEC_ID_MJPEG:
1723 if (ENABLE_MJPEG_ENCODER)
1724 ff_mjpeg_encode_mb(s, s->block);
1731 static av_always_inline void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
1733 if (s->chroma_format == CHROMA_420) encode_mb_internal(s, motion_x, motion_y, 8, 6);
1734 else encode_mb_internal(s, motion_x, motion_y, 16, 8);
1737 void ff_copy_bits(PutBitContext *pb, uint8_t *src, int length)
1739 const uint16_t *srcw= (uint16_t*)src;
1740 int words= length>>4;
1741 int bits= length&15;
1744 if(length==0) return;
1747 for(i=0; i<words; i++) put_bits(pb, 16, be2me_16(srcw[i]));
1748 }else if(put_bits_count(pb)&7){
1749 for(i=0; i<words; i++) put_bits(pb, 16, be2me_16(srcw[i]));
1751 for(i=0; put_bits_count(pb)&31; i++)
1752 put_bits(pb, 8, src[i]);
1754 memcpy(pbBufPtr(pb), src+i, 2*words-i);
1755 skip_put_bytes(pb, 2*words-i);
1758 put_bits(pb, bits, be2me_16(srcw[words])>>(16-bits));
1761 static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1764 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1767 d->mb_skip_run= s->mb_skip_run;
1769 d->last_dc[i]= s->last_dc[i];
1772 d->mv_bits= s->mv_bits;
1773 d->i_tex_bits= s->i_tex_bits;
1774 d->p_tex_bits= s->p_tex_bits;
1775 d->i_count= s->i_count;
1776 d->f_count= s->f_count;
1777 d->b_count= s->b_count;
1778 d->skip_count= s->skip_count;
1779 d->misc_bits= s->misc_bits;
1783 d->qscale= s->qscale;
1784 d->dquant= s->dquant;
1787 static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1790 memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
1791 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1794 d->mb_skip_run= s->mb_skip_run;
1796 d->last_dc[i]= s->last_dc[i];
1799 d->mv_bits= s->mv_bits;
1800 d->i_tex_bits= s->i_tex_bits;
1801 d->p_tex_bits= s->p_tex_bits;
1802 d->i_count= s->i_count;
1803 d->f_count= s->f_count;
1804 d->b_count= s->b_count;
1805 d->skip_count= s->skip_count;
1806 d->misc_bits= s->misc_bits;
1808 d->mb_intra= s->mb_intra;
1809 d->mb_skipped= s->mb_skipped;
1810 d->mv_type= s->mv_type;
1811 d->mv_dir= s->mv_dir;
1813 if(s->data_partitioning){
1815 d->tex_pb= s->tex_pb;
1819 d->block_last_index[i]= s->block_last_index[i];
1820 d->interlaced_dct= s->interlaced_dct;
1821 d->qscale= s->qscale;
1824 static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type,
1825 PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
1826 int *dmin, int *next_block, int motion_x, int motion_y)
1829 uint8_t *dest_backup[3];
1831 copy_context_before_encode(s, backup, type);
1833 s->block= s->blocks[*next_block];
1834 s->pb= pb[*next_block];
1835 if(s->data_partitioning){
1836 s->pb2 = pb2 [*next_block];
1837 s->tex_pb= tex_pb[*next_block];
1841 memcpy(dest_backup, s->dest, sizeof(s->dest));
1842 s->dest[0] = s->rd_scratchpad;
1843 s->dest[1] = s->rd_scratchpad + 16*s->linesize;
1844 s->dest[2] = s->rd_scratchpad + 16*s->linesize + 8;
1845 assert(s->linesize >= 32); //FIXME
1848 encode_mb(s, motion_x, motion_y);
1850 score= put_bits_count(&s->pb);
1851 if(s->data_partitioning){
1852 score+= put_bits_count(&s->pb2);
1853 score+= put_bits_count(&s->tex_pb);
1856 if(s->avctx->mb_decision == FF_MB_DECISION_RD){
1857 MPV_decode_mb(s, s->block);
1859 score *= s->lambda2;
1860 score += sse_mb(s) << FF_LAMBDA_SHIFT;
1864 memcpy(s->dest, dest_backup, sizeof(s->dest));
1871 copy_context_after_encode(best, s, type);
1875 static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){
1876 uint32_t *sq = ff_squareTbl + 256;
1881 return s->dsp.sse[0](NULL, src1, src2, stride, 16);
1882 else if(w==8 && h==8)
1883 return s->dsp.sse[1](NULL, src1, src2, stride, 8);
1887 acc+= sq[src1[x + y*stride] - src2[x + y*stride]];
1896 static int sse_mb(MpegEncContext *s){
1900 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
1901 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
1904 if(s->avctx->mb_cmp == FF_CMP_NSSE){
1905 return s->dsp.nsse[0](s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], s->linesize, 16)
1906 +s->dsp.nsse[1](s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], s->uvlinesize, 8)
1907 +s->dsp.nsse[1](s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], s->uvlinesize, 8);
1909 return s->dsp.sse[0](NULL, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], s->linesize, 16)
1910 +s->dsp.sse[1](NULL, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], s->uvlinesize, 8)
1911 +s->dsp.sse[1](NULL, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], s->uvlinesize, 8);
1914 return sse(s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16, s->dest[0], w, h, s->linesize)
1915 +sse(s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[1], w>>1, h>>1, s->uvlinesize)
1916 +sse(s, s->new_picture.data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,s->dest[2], w>>1, h>>1, s->uvlinesize);
1919 static int pre_estimate_motion_thread(AVCodecContext *c, void *arg){
1920 MpegEncContext *s= arg;
1924 s->me.dia_size= s->avctx->pre_dia_size;
1925 s->first_slice_line=1;
1926 for(s->mb_y= s->end_mb_y-1; s->mb_y >= s->start_mb_y; s->mb_y--) {
1927 for(s->mb_x=s->mb_width-1; s->mb_x >=0 ;s->mb_x--) {
1928 ff_pre_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1930 s->first_slice_line=0;
1938 static int estimate_motion_thread(AVCodecContext *c, void *arg){
1939 MpegEncContext *s= arg;
1941 ff_check_alignment();
1943 s->me.dia_size= s->avctx->dia_size;
1944 s->first_slice_line=1;
1945 for(s->mb_y= s->start_mb_y; s->mb_y < s->end_mb_y; s->mb_y++) {
1946 s->mb_x=0; //for block init below
1947 ff_init_block_index(s);
1948 for(s->mb_x=0; s->mb_x < s->mb_width; s->mb_x++) {
1949 s->block_index[0]+=2;
1950 s->block_index[1]+=2;
1951 s->block_index[2]+=2;
1952 s->block_index[3]+=2;
1954 /* compute motion vector & mb_type and store in context */
1955 if(s->pict_type==B_TYPE)
1956 ff_estimate_b_frame_motion(s, s->mb_x, s->mb_y);
1958 ff_estimate_p_frame_motion(s, s->mb_x, s->mb_y);
1960 s->first_slice_line=0;
1965 static int mb_var_thread(AVCodecContext *c, void *arg){
1966 MpegEncContext *s= arg;
1969 ff_check_alignment();
1971 for(mb_y=s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
1972 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
1975 uint8_t *pix = s->new_picture.data[0] + (yy * s->linesize) + xx;
1977 int sum = s->dsp.pix_sum(pix, s->linesize);
1979 varc = (s->dsp.pix_norm1(pix, s->linesize) - (((unsigned)(sum*sum))>>8) + 500 + 128)>>8;
1981 s->current_picture.mb_var [s->mb_stride * mb_y + mb_x] = varc;
1982 s->current_picture.mb_mean[s->mb_stride * mb_y + mb_x] = (sum+128)>>8;
1983 s->me.mb_var_sum_temp += varc;
1989 static void write_slice_end(MpegEncContext *s){
1990 if(s->codec_id==CODEC_ID_MPEG4){
1991 if(s->partitioned_frame){
1992 ff_mpeg4_merge_partitions(s);
1995 ff_mpeg4_stuffing(&s->pb);
1996 }else if(ENABLE_MJPEG_ENCODER && s->out_format == FMT_MJPEG){
1997 ff_mjpeg_encode_stuffing(&s->pb);
2000 align_put_bits(&s->pb);
2001 flush_put_bits(&s->pb);
2003 if((s->flags&CODEC_FLAG_PASS1) && !s->partitioned_frame)
2004 s->misc_bits+= get_bits_diff(s);
2007 static int encode_thread(AVCodecContext *c, void *arg){
2008 MpegEncContext *s= arg;
2009 int mb_x, mb_y, pdif = 0;
2011 MpegEncContext best_s, backup_s;
2012 uint8_t bit_buf[2][MAX_MB_BYTES];
2013 uint8_t bit_buf2[2][MAX_MB_BYTES];
2014 uint8_t bit_buf_tex[2][MAX_MB_BYTES];
2015 PutBitContext pb[2], pb2[2], tex_pb[2];
2016 //printf("%d->%d\n", s->resync_mb_y, s->end_mb_y);
2018 ff_check_alignment();
2021 init_put_bits(&pb [i], bit_buf [i], MAX_MB_BYTES);
2022 init_put_bits(&pb2 [i], bit_buf2 [i], MAX_MB_BYTES);
2023 init_put_bits(&tex_pb[i], bit_buf_tex[i], MAX_MB_BYTES);
2026 s->last_bits= put_bits_count(&s->pb);
2037 /* init last dc values */
2038 /* note: quant matrix value (8) is implied here */
2039 s->last_dc[i] = 128 << s->intra_dc_precision;
2041 s->current_picture.error[i] = 0;
2044 memset(s->last_mv, 0, sizeof(s->last_mv));
2048 switch(s->codec_id){
2050 case CODEC_ID_H263P:
2052 s->gob_index = ff_h263_get_gob_height(s);
2054 case CODEC_ID_MPEG4:
2055 if(s->partitioned_frame)
2056 ff_mpeg4_init_partitions(s);
2062 s->first_slice_line = 1;
2063 s->ptr_lastgob = s->pb.buf;
2064 for(mb_y= s->start_mb_y; mb_y < s->end_mb_y; mb_y++) {
2065 // printf("row %d at %X\n", s->mb_y, (int)s);
2069 ff_set_qscale(s, s->qscale);
2070 ff_init_block_index(s);
2072 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2073 int xy= mb_y*s->mb_stride + mb_x; // removed const, H261 needs to adjust this
2074 int mb_type= s->mb_type[xy];
2079 if(s->pb.buf_end - s->pb.buf - (put_bits_count(&s->pb)>>3) < MAX_MB_BYTES){
2080 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2083 if(s->data_partitioning){
2084 if( s->pb2 .buf_end - s->pb2 .buf - (put_bits_count(&s-> pb2)>>3) < MAX_MB_BYTES
2085 || s->tex_pb.buf_end - s->tex_pb.buf - (put_bits_count(&s->tex_pb )>>3) < MAX_MB_BYTES){
2086 av_log(s->avctx, AV_LOG_ERROR, "encoded frame too large\n");
2092 s->mb_y = mb_y; // moved into loop, can get changed by H.261
2093 ff_update_block_index(s);
2095 if(ENABLE_H261_ENCODER && s->codec_id == CODEC_ID_H261){
2096 ff_h261_reorder_mb_index(s);
2097 xy= s->mb_y*s->mb_stride + s->mb_x;
2098 mb_type= s->mb_type[xy];
2101 /* write gob / video packet header */
2103 int current_packet_size, is_gob_start;
2105 current_packet_size= ((put_bits_count(&s->pb)+7)>>3) - (s->ptr_lastgob - s->pb.buf);
2107 is_gob_start= s->avctx->rtp_payload_size && current_packet_size >= s->avctx->rtp_payload_size && mb_y + mb_x>0;
2109 if(s->start_mb_y == mb_y && mb_y > 0 && mb_x==0) is_gob_start=1;
2111 switch(s->codec_id){
2113 case CODEC_ID_H263P:
2114 if(!s->h263_slice_structured)
2115 if(s->mb_x || s->mb_y%s->gob_index) is_gob_start=0;
2117 case CODEC_ID_MPEG2VIDEO:
2118 if(s->mb_x==0 && s->mb_y!=0) is_gob_start=1;
2119 case CODEC_ID_MPEG1VIDEO:
2120 if(s->mb_skip_run) is_gob_start=0;
2125 if(s->start_mb_y != mb_y || mb_x!=0){
2128 if(s->codec_id==CODEC_ID_MPEG4 && s->partitioned_frame){
2129 ff_mpeg4_init_partitions(s);
2133 assert((put_bits_count(&s->pb)&7) == 0);
2134 current_packet_size= pbBufPtr(&s->pb) - s->ptr_lastgob;
2136 if(s->avctx->error_rate && s->resync_mb_x + s->resync_mb_y > 0){
2137 int r= put_bits_count(&s->pb)/8 + s->picture_number + 16 + s->mb_x + s->mb_y;
2138 int d= 100 / s->avctx->error_rate;
2140 current_packet_size=0;
2141 #ifndef ALT_BITSTREAM_WRITER
2142 s->pb.buf_ptr= s->ptr_lastgob;
2144 assert(pbBufPtr(&s->pb) == s->ptr_lastgob);
2148 if (s->avctx->rtp_callback){
2149 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width + mb_x - s->resync_mb_x;
2150 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, current_packet_size, number_mb);
2153 switch(s->codec_id){
2154 case CODEC_ID_MPEG4:
2155 ff_mpeg4_encode_video_packet_header(s);
2156 ff_mpeg4_clean_buffers(s);
2158 case CODEC_ID_MPEG1VIDEO:
2159 case CODEC_ID_MPEG2VIDEO:
2160 if (ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER) {
2161 ff_mpeg1_encode_slice_header(s);
2162 ff_mpeg1_clean_buffers(s);
2166 case CODEC_ID_H263P:
2167 h263_encode_gob_header(s, mb_y);
2171 if(s->flags&CODEC_FLAG_PASS1){
2172 int bits= put_bits_count(&s->pb);
2173 s->misc_bits+= bits - s->last_bits;
2177 s->ptr_lastgob += current_packet_size;
2178 s->first_slice_line=1;
2179 s->resync_mb_x=mb_x;
2180 s->resync_mb_y=mb_y;
2184 if( (s->resync_mb_x == s->mb_x)
2185 && s->resync_mb_y+1 == s->mb_y){
2186 s->first_slice_line=0;
2190 s->dquant=0; //only for QP_RD
2192 if(mb_type & (mb_type-1) || (s->flags & CODEC_FLAG_QP_RD)){ // more than 1 MB type possible or CODEC_FLAG_QP_RD
2194 int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
2196 copy_context_before_encode(&backup_s, s, -1);
2198 best_s.data_partitioning= s->data_partitioning;
2199 best_s.partitioned_frame= s->partitioned_frame;
2200 if(s->data_partitioning){
2201 backup_s.pb2= s->pb2;
2202 backup_s.tex_pb= s->tex_pb;
2205 if(mb_type&CANDIDATE_MB_TYPE_INTER){
2206 s->mv_dir = MV_DIR_FORWARD;
2207 s->mv_type = MV_TYPE_16X16;
2209 s->mv[0][0][0] = s->p_mv_table[xy][0];
2210 s->mv[0][0][1] = s->p_mv_table[xy][1];
2211 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER, pb, pb2, tex_pb,
2212 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2214 if(mb_type&CANDIDATE_MB_TYPE_INTER_I){
2215 s->mv_dir = MV_DIR_FORWARD;
2216 s->mv_type = MV_TYPE_FIELD;
2219 j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2220 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2221 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2223 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER_I, pb, pb2, tex_pb,
2224 &dmin, &next_block, 0, 0);
2226 if(mb_type&CANDIDATE_MB_TYPE_SKIPPED){
2227 s->mv_dir = MV_DIR_FORWARD;
2228 s->mv_type = MV_TYPE_16X16;
2232 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_SKIPPED, pb, pb2, tex_pb,
2233 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2235 if(mb_type&CANDIDATE_MB_TYPE_INTER4V){
2236 s->mv_dir = MV_DIR_FORWARD;
2237 s->mv_type = MV_TYPE_8X8;
2240 s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2241 s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2243 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER4V, pb, pb2, tex_pb,
2244 &dmin, &next_block, 0, 0);
2246 if(mb_type&CANDIDATE_MB_TYPE_FORWARD){
2247 s->mv_dir = MV_DIR_FORWARD;
2248 s->mv_type = MV_TYPE_16X16;
2250 s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2251 s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2252 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD, pb, pb2, tex_pb,
2253 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2255 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD){
2256 s->mv_dir = MV_DIR_BACKWARD;
2257 s->mv_type = MV_TYPE_16X16;
2259 s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2260 s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2261 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD, pb, pb2, tex_pb,
2262 &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
2264 if(mb_type&CANDIDATE_MB_TYPE_BIDIR){
2265 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2266 s->mv_type = MV_TYPE_16X16;
2268 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2269 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2270 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2271 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2272 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR, pb, pb2, tex_pb,
2273 &dmin, &next_block, 0, 0);
2275 if(mb_type&CANDIDATE_MB_TYPE_FORWARD_I){
2276 s->mv_dir = MV_DIR_FORWARD;
2277 s->mv_type = MV_TYPE_FIELD;
2280 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2281 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2282 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2284 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_FORWARD_I, pb, pb2, tex_pb,
2285 &dmin, &next_block, 0, 0);
2287 if(mb_type&CANDIDATE_MB_TYPE_BACKWARD_I){
2288 s->mv_dir = MV_DIR_BACKWARD;
2289 s->mv_type = MV_TYPE_FIELD;
2292 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2293 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2294 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2296 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BACKWARD_I, pb, pb2, tex_pb,
2297 &dmin, &next_block, 0, 0);
2299 if(mb_type&CANDIDATE_MB_TYPE_BIDIR_I){
2300 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2301 s->mv_type = MV_TYPE_FIELD;
2303 for(dir=0; dir<2; dir++){
2305 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2306 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2307 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2310 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_BIDIR_I, pb, pb2, tex_pb,
2311 &dmin, &next_block, 0, 0);
2313 if(mb_type&CANDIDATE_MB_TYPE_INTRA){
2315 s->mv_type = MV_TYPE_16X16;
2319 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTRA, pb, pb2, tex_pb,
2320 &dmin, &next_block, 0, 0);
2321 if(s->h263_pred || s->h263_aic){
2323 s->mbintra_table[mb_x + mb_y*s->mb_stride]=1;
2325 ff_clean_intra_table_entries(s); //old mode?
2329 if((s->flags & CODEC_FLAG_QP_RD) && dmin < INT_MAX){
2330 if(best_s.mv_type==MV_TYPE_16X16){ //FIXME move 4mv after QPRD
2331 const int last_qp= backup_s.qscale;
2334 const int mvdir= (best_s.mv_dir&MV_DIR_BACKWARD) ? 1 : 0;
2335 static const int dquant_tab[4]={-1,1,-2,2};
2337 assert(backup_s.dquant == 0);
2340 s->mv_dir= best_s.mv_dir;
2341 s->mv_type = MV_TYPE_16X16;
2342 s->mb_intra= best_s.mb_intra;
2343 s->mv[0][0][0] = best_s.mv[0][0][0];
2344 s->mv[0][0][1] = best_s.mv[0][0][1];
2345 s->mv[1][0][0] = best_s.mv[1][0][0];
2346 s->mv[1][0][1] = best_s.mv[1][0][1];
2348 qpi = s->pict_type == B_TYPE ? 2 : 0;
2349 for(; qpi<4; qpi++){
2350 int dquant= dquant_tab[qpi];
2351 qp= last_qp + dquant;
2352 if(qp < s->avctx->qmin || qp > s->avctx->qmax)
2354 backup_s.dquant= dquant;
2355 if(s->mb_intra && s->dc_val[0]){
2357 dc[i]= s->dc_val[0][ s->block_index[i] ];
2358 memcpy(ac[i], s->ac_val[0][s->block_index[i]], sizeof(DCTELEM)*16);
2362 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2363 &dmin, &next_block, s->mv[mvdir][0][0], s->mv[mvdir][0][1]);
2364 if(best_s.qscale != qp){
2365 if(s->mb_intra && s->dc_val[0]){
2367 s->dc_val[0][ s->block_index[i] ]= dc[i];
2368 memcpy(s->ac_val[0][s->block_index[i]], ac[i], sizeof(DCTELEM)*16);
2375 if(mb_type&CANDIDATE_MB_TYPE_DIRECT){
2376 int mx= s->b_direct_mv_table[xy][0];
2377 int my= s->b_direct_mv_table[xy][1];
2379 backup_s.dquant = 0;
2380 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2382 ff_mpeg4_set_direct_mv(s, mx, my);
2383 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2384 &dmin, &next_block, mx, my);
2386 if(mb_type&CANDIDATE_MB_TYPE_DIRECT0){
2387 backup_s.dquant = 0;
2388 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2390 ff_mpeg4_set_direct_mv(s, 0, 0);
2391 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_DIRECT, pb, pb2, tex_pb,
2392 &dmin, &next_block, 0, 0);
2394 if(!best_s.mb_intra && s->flags2&CODEC_FLAG2_SKIP_RD){
2397 coded |= s->block_last_index[i];
2400 memcpy(s->mv, best_s.mv, sizeof(s->mv));
2401 if(best_s.mv_dir & MV_DIRECT){
2402 mx=my=0; //FIXME find the one we actually used
2403 ff_mpeg4_set_direct_mv(s, mx, my);
2404 }else if(best_s.mv_dir&MV_DIR_BACKWARD){
2412 s->mv_dir= best_s.mv_dir;
2413 s->mv_type = best_s.mv_type;
2415 /* s->mv[0][0][0] = best_s.mv[0][0][0];
2416 s->mv[0][0][1] = best_s.mv[0][0][1];
2417 s->mv[1][0][0] = best_s.mv[1][0][0];
2418 s->mv[1][0][1] = best_s.mv[1][0][1];*/
2421 encode_mb_hq(s, &backup_s, &best_s, CANDIDATE_MB_TYPE_INTER /* wrong but unused */, pb, pb2, tex_pb,
2422 &dmin, &next_block, mx, my);
2427 s->current_picture.qscale_table[xy]= best_s.qscale;
2429 copy_context_after_encode(s, &best_s, -1);
2431 pb_bits_count= put_bits_count(&s->pb);
2432 flush_put_bits(&s->pb);
2433 ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
2436 if(s->data_partitioning){
2437 pb2_bits_count= put_bits_count(&s->pb2);
2438 flush_put_bits(&s->pb2);
2439 ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
2440 s->pb2= backup_s.pb2;
2442 tex_pb_bits_count= put_bits_count(&s->tex_pb);
2443 flush_put_bits(&s->tex_pb);
2444 ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
2445 s->tex_pb= backup_s.tex_pb;
2447 s->last_bits= put_bits_count(&s->pb);
2449 if (s->out_format == FMT_H263 && s->pict_type!=B_TYPE)
2450 ff_h263_update_motion_val(s);
2452 if(next_block==0){ //FIXME 16 vs linesize16
2453 s->dsp.put_pixels_tab[0][0](s->dest[0], s->rd_scratchpad , s->linesize ,16);
2454 s->dsp.put_pixels_tab[1][0](s->dest[1], s->rd_scratchpad + 16*s->linesize , s->uvlinesize, 8);
2455 s->dsp.put_pixels_tab[1][0](s->dest[2], s->rd_scratchpad + 16*s->linesize + 8, s->uvlinesize, 8);
2458 if(s->avctx->mb_decision == FF_MB_DECISION_BITS)
2459 MPV_decode_mb(s, s->block);
2461 int motion_x = 0, motion_y = 0;
2462 s->mv_type=MV_TYPE_16X16;
2463 // only one MB-Type possible
2466 case CANDIDATE_MB_TYPE_INTRA:
2469 motion_x= s->mv[0][0][0] = 0;
2470 motion_y= s->mv[0][0][1] = 0;
2472 case CANDIDATE_MB_TYPE_INTER:
2473 s->mv_dir = MV_DIR_FORWARD;
2475 motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
2476 motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
2478 case CANDIDATE_MB_TYPE_INTER_I:
2479 s->mv_dir = MV_DIR_FORWARD;
2480 s->mv_type = MV_TYPE_FIELD;
2483 j= s->field_select[0][i] = s->p_field_select_table[i][xy];
2484 s->mv[0][i][0] = s->p_field_mv_table[i][j][xy][0];
2485 s->mv[0][i][1] = s->p_field_mv_table[i][j][xy][1];
2488 case CANDIDATE_MB_TYPE_INTER4V:
2489 s->mv_dir = MV_DIR_FORWARD;
2490 s->mv_type = MV_TYPE_8X8;
2493 s->mv[0][i][0] = s->current_picture.motion_val[0][s->block_index[i]][0];
2494 s->mv[0][i][1] = s->current_picture.motion_val[0][s->block_index[i]][1];
2497 case CANDIDATE_MB_TYPE_DIRECT:
2498 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2500 motion_x=s->b_direct_mv_table[xy][0];
2501 motion_y=s->b_direct_mv_table[xy][1];
2502 ff_mpeg4_set_direct_mv(s, motion_x, motion_y);
2504 case CANDIDATE_MB_TYPE_DIRECT0:
2505 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2507 ff_mpeg4_set_direct_mv(s, 0, 0);
2509 case CANDIDATE_MB_TYPE_BIDIR:
2510 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2512 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2513 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2514 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2515 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2517 case CANDIDATE_MB_TYPE_BACKWARD:
2518 s->mv_dir = MV_DIR_BACKWARD;
2520 motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2521 motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2523 case CANDIDATE_MB_TYPE_FORWARD:
2524 s->mv_dir = MV_DIR_FORWARD;
2526 motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2527 motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2528 // printf(" %d %d ", motion_x, motion_y);
2530 case CANDIDATE_MB_TYPE_FORWARD_I:
2531 s->mv_dir = MV_DIR_FORWARD;
2532 s->mv_type = MV_TYPE_FIELD;
2535 j= s->field_select[0][i] = s->b_field_select_table[0][i][xy];
2536 s->mv[0][i][0] = s->b_field_mv_table[0][i][j][xy][0];
2537 s->mv[0][i][1] = s->b_field_mv_table[0][i][j][xy][1];
2540 case CANDIDATE_MB_TYPE_BACKWARD_I:
2541 s->mv_dir = MV_DIR_BACKWARD;
2542 s->mv_type = MV_TYPE_FIELD;
2545 j= s->field_select[1][i] = s->b_field_select_table[1][i][xy];
2546 s->mv[1][i][0] = s->b_field_mv_table[1][i][j][xy][0];
2547 s->mv[1][i][1] = s->b_field_mv_table[1][i][j][xy][1];
2550 case CANDIDATE_MB_TYPE_BIDIR_I:
2551 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2552 s->mv_type = MV_TYPE_FIELD;
2554 for(dir=0; dir<2; dir++){
2556 j= s->field_select[dir][i] = s->b_field_select_table[dir][i][xy];
2557 s->mv[dir][i][0] = s->b_field_mv_table[dir][i][j][xy][0];
2558 s->mv[dir][i][1] = s->b_field_mv_table[dir][i][j][xy][1];
2563 av_log(s->avctx, AV_LOG_ERROR, "illegal MB type\n");
2566 encode_mb(s, motion_x, motion_y);
2568 // RAL: Update last macroblock type
2569 s->last_mv_dir = s->mv_dir;
2571 if (s->out_format == FMT_H263 && s->pict_type!=B_TYPE)
2572 ff_h263_update_motion_val(s);
2574 MPV_decode_mb(s, s->block);
2577 /* clean the MV table in IPS frames for direct mode in B frames */
2578 if(s->mb_intra /* && I,P,S_TYPE */){
2579 s->p_mv_table[xy][0]=0;
2580 s->p_mv_table[xy][1]=0;
2583 if(s->flags&CODEC_FLAG_PSNR){
2587 if(s->mb_x*16 + 16 > s->width ) w= s->width - s->mb_x*16;
2588 if(s->mb_y*16 + 16 > s->height) h= s->height- s->mb_y*16;
2590 s->current_picture.error[0] += sse(
2591 s, s->new_picture.data[0] + s->mb_x*16 + s->mb_y*s->linesize*16,
2592 s->dest[0], w, h, s->linesize);
2593 s->current_picture.error[1] += sse(
2594 s, s->new_picture.data[1] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,
2595 s->dest[1], w>>1, h>>1, s->uvlinesize);
2596 s->current_picture.error[2] += sse(
2597 s, s->new_picture .data[2] + s->mb_x*8 + s->mb_y*s->uvlinesize*8,
2598 s->dest[2], w>>1, h>>1, s->uvlinesize);
2601 if(s->out_format == FMT_H263)
2602 ff_h263_loop_filter(s);
2604 //printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_stride, put_bits_count(&s->pb));
2608 //not beautiful here but we must write it before flushing so it has to be here
2609 if (ENABLE_MSMPEG4_ENCODER && s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == I_TYPE)
2610 msmpeg4_encode_ext_header(s);
2614 /* Send the last GOB if RTP */
2615 if (s->avctx->rtp_callback) {
2616 int number_mb = (mb_y - s->resync_mb_y)*s->mb_width - s->resync_mb_x;
2617 pdif = pbBufPtr(&s->pb) - s->ptr_lastgob;
2618 /* Call the RTP callback to send the last GOB */
2620 s->avctx->rtp_callback(s->avctx, s->ptr_lastgob, pdif, number_mb);
2626 #define MERGE(field) dst->field += src->field; src->field=0
2627 static void merge_context_after_me(MpegEncContext *dst, MpegEncContext *src){
2628 MERGE(me.scene_change_score);
2629 MERGE(me.mc_mb_var_sum_temp);
2630 MERGE(me.mb_var_sum_temp);
2633 static void merge_context_after_encode(MpegEncContext *dst, MpegEncContext *src){
2636 MERGE(dct_count[0]); //note, the other dct vars are not part of the context
2637 MERGE(dct_count[1]);
2647 MERGE(padding_bug_score);
2648 MERGE(current_picture.error[0]);
2649 MERGE(current_picture.error[1]);
2650 MERGE(current_picture.error[2]);
2652 if(dst->avctx->noise_reduction){
2653 for(i=0; i<64; i++){
2654 MERGE(dct_error_sum[0][i]);
2655 MERGE(dct_error_sum[1][i]);
2659 assert(put_bits_count(&src->pb) % 8 ==0);
2660 assert(put_bits_count(&dst->pb) % 8 ==0);
2661 ff_copy_bits(&dst->pb, src->pb.buf, put_bits_count(&src->pb));
2662 flush_put_bits(&dst->pb);
2665 static int estimate_qp(MpegEncContext *s, int dry_run){
2666 if (s->next_lambda){
2667 s->current_picture_ptr->quality=
2668 s->current_picture.quality = s->next_lambda;
2669 if(!dry_run) s->next_lambda= 0;
2670 } else if (!s->fixed_qscale) {
2671 s->current_picture_ptr->quality=
2672 s->current_picture.quality = ff_rate_estimate_qscale(s, dry_run);
2673 if (s->current_picture.quality < 0)
2677 if(s->adaptive_quant){
2678 switch(s->codec_id){
2679 case CODEC_ID_MPEG4:
2680 ff_clean_mpeg4_qscales(s);
2683 case CODEC_ID_H263P:
2685 ff_clean_h263_qscales(s);
2689 s->lambda= s->lambda_table[0];
2692 s->lambda= s->current_picture.quality;
2693 //printf("%d %d\n", s->avctx->global_quality, s->current_picture.quality);
2698 static int encode_picture(MpegEncContext *s, int picture_number)
2703 s->picture_number = picture_number;
2705 /* Reset the average MB variance */
2706 s->me.mb_var_sum_temp =
2707 s->me.mc_mb_var_sum_temp = 0;
2709 /* we need to initialize some time vars before we can encode b-frames */
2710 // RAL: Condition added for MPEG1VIDEO
2711 if (s->codec_id == CODEC_ID_MPEG1VIDEO || s->codec_id == CODEC_ID_MPEG2VIDEO || (s->h263_pred && !s->h263_msmpeg4))
2712 ff_set_mpeg4_time(s, s->picture_number); //FIXME rename and use has_b_frames or similar
2714 s->me.scene_change_score=0;
2716 // s->lambda= s->current_picture_ptr->quality; //FIXME qscale / ... stuff for ME ratedistoration
2718 if(s->pict_type==I_TYPE){
2719 if(s->msmpeg4_version >= 3) s->no_rounding=1;
2720 else s->no_rounding=0;
2721 }else if(s->pict_type!=B_TYPE){
2722 if(s->flipflop_rounding || s->codec_id == CODEC_ID_H263P || s->codec_id == CODEC_ID_MPEG4)
2723 s->no_rounding ^= 1;
2726 if(s->flags & CODEC_FLAG_PASS2){
2727 if (estimate_qp(s,1) < 0)
2729 ff_get_2pass_fcode(s);
2730 }else if(!(s->flags & CODEC_FLAG_QSCALE)){
2731 if(s->pict_type==B_TYPE)
2732 s->lambda= s->last_lambda_for[s->pict_type];
2734 s->lambda= s->last_lambda_for[s->last_non_b_pict_type];
2738 s->mb_intra=0; //for the rate distortion & bit compare functions
2739 for(i=1; i<s->avctx->thread_count; i++){
2740 ff_update_duplicate_context(s->thread_context[i], s);
2745 /* Estimate motion for every MB */
2746 if(s->pict_type != I_TYPE){
2747 s->lambda = (s->lambda * s->avctx->me_penalty_compensation + 128)>>8;
2748 s->lambda2= (s->lambda2* (int64_t)s->avctx->me_penalty_compensation + 128)>>8;
2749 if(s->pict_type != B_TYPE && s->avctx->me_threshold==0){
2750 if((s->avctx->pre_me && s->last_non_b_pict_type==I_TYPE) || s->avctx->pre_me==2){
2751 s->avctx->execute(s->avctx, pre_estimate_motion_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
2755 s->avctx->execute(s->avctx, estimate_motion_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
2756 }else /* if(s->pict_type == I_TYPE) */{
2758 for(i=0; i<s->mb_stride*s->mb_height; i++)
2759 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2761 if(!s->fixed_qscale){
2762 /* finding spatial complexity for I-frame rate control */
2763 s->avctx->execute(s->avctx, mb_var_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
2766 for(i=1; i<s->avctx->thread_count; i++){
2767 merge_context_after_me(s, s->thread_context[i]);
2769 s->current_picture.mc_mb_var_sum= s->current_picture_ptr->mc_mb_var_sum= s->me.mc_mb_var_sum_temp;
2770 s->current_picture. mb_var_sum= s->current_picture_ptr-> mb_var_sum= s->me. mb_var_sum_temp;
2773 if(s->me.scene_change_score > s->avctx->scenechange_threshold && s->pict_type == P_TYPE){
2774 s->pict_type= I_TYPE;
2775 for(i=0; i<s->mb_stride*s->mb_height; i++)
2776 s->mb_type[i]= CANDIDATE_MB_TYPE_INTRA;
2777 //printf("Scene change detected, encoding as I Frame %d %d\n", s->current_picture.mb_var_sum, s->current_picture.mc_mb_var_sum);
2781 if(s->pict_type==P_TYPE || s->pict_type==S_TYPE) {
2782 s->f_code= ff_get_best_fcode(s, s->p_mv_table, CANDIDATE_MB_TYPE_INTER);
2784 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2786 a= ff_get_best_fcode(s, s->p_field_mv_table[0][0], CANDIDATE_MB_TYPE_INTER_I); //FIXME field_select
2787 b= ff_get_best_fcode(s, s->p_field_mv_table[1][1], CANDIDATE_MB_TYPE_INTER_I);
2788 s->f_code= FFMAX(s->f_code, FFMAX(a,b));
2791 ff_fix_long_p_mvs(s);
2792 ff_fix_long_mvs(s, NULL, 0, s->p_mv_table, s->f_code, CANDIDATE_MB_TYPE_INTER, 0);
2793 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2797 ff_fix_long_mvs(s, s->p_field_select_table[i], j,
2798 s->p_field_mv_table[i][j], s->f_code, CANDIDATE_MB_TYPE_INTER_I, 0);
2803 if(s->pict_type==B_TYPE){
2806 a = ff_get_best_fcode(s, s->b_forw_mv_table, CANDIDATE_MB_TYPE_FORWARD);
2807 b = ff_get_best_fcode(s, s->b_bidir_forw_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2808 s->f_code = FFMAX(a, b);
2810 a = ff_get_best_fcode(s, s->b_back_mv_table, CANDIDATE_MB_TYPE_BACKWARD);
2811 b = ff_get_best_fcode(s, s->b_bidir_back_mv_table, CANDIDATE_MB_TYPE_BIDIR);
2812 s->b_code = FFMAX(a, b);
2814 ff_fix_long_mvs(s, NULL, 0, s->b_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_FORWARD, 1);
2815 ff_fix_long_mvs(s, NULL, 0, s->b_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BACKWARD, 1);
2816 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_forw_mv_table, s->f_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2817 ff_fix_long_mvs(s, NULL, 0, s->b_bidir_back_mv_table, s->b_code, CANDIDATE_MB_TYPE_BIDIR, 1);
2818 if(s->flags & CODEC_FLAG_INTERLACED_ME){
2820 for(dir=0; dir<2; dir++){
2823 int type= dir ? (CANDIDATE_MB_TYPE_BACKWARD_I|CANDIDATE_MB_TYPE_BIDIR_I)
2824 : (CANDIDATE_MB_TYPE_FORWARD_I |CANDIDATE_MB_TYPE_BIDIR_I);
2825 ff_fix_long_mvs(s, s->b_field_select_table[dir][i], j,
2826 s->b_field_mv_table[dir][i][j], dir ? s->b_code : s->f_code, type, 1);
2834 if (estimate_qp(s, 0) < 0)
2837 if(s->qscale < 3 && s->max_qcoeff<=128 && s->pict_type==I_TYPE && !(s->flags & CODEC_FLAG_QSCALE))
2838 s->qscale= 3; //reduce clipping problems
2840 if (s->out_format == FMT_MJPEG) {
2841 /* for mjpeg, we do include qscale in the matrix */
2842 s->intra_matrix[0] = ff_mpeg1_default_intra_matrix[0];
2844 int j= s->dsp.idct_permutation[i];
2846 s->intra_matrix[j] = av_clip_uint8((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
2848 convert_matrix(&s->dsp, s->q_intra_matrix, s->q_intra_matrix16,
2849 s->intra_matrix, s->intra_quant_bias, 8, 8, 1);
2853 //FIXME var duplication
2854 s->current_picture_ptr->key_frame=
2855 s->current_picture.key_frame= s->pict_type == I_TYPE; //FIXME pic_ptr
2856 s->current_picture_ptr->pict_type=
2857 s->current_picture.pict_type= s->pict_type;
2859 if(s->current_picture.key_frame)
2860 s->picture_in_gop_number=0;
2862 s->last_bits= put_bits_count(&s->pb);
2863 switch(s->out_format) {
2865 if (ENABLE_MJPEG_ENCODER)
2866 ff_mjpeg_encode_picture_header(s);
2869 if (ENABLE_H261_ENCODER)
2870 ff_h261_encode_picture_header(s, picture_number);
2873 if (ENABLE_WMV2_ENCODER && s->codec_id == CODEC_ID_WMV2)
2874 ff_wmv2_encode_picture_header(s, picture_number);
2875 else if (ENABLE_MSMPEG4_ENCODER && s->h263_msmpeg4)
2876 msmpeg4_encode_picture_header(s, picture_number);
2877 else if (s->h263_pred)
2878 mpeg4_encode_picture_header(s, picture_number);
2879 else if (ENABLE_RV10_ENCODER && s->codec_id == CODEC_ID_RV10)
2880 rv10_encode_picture_header(s, picture_number);
2881 else if (ENABLE_RV20_ENCODER && s->codec_id == CODEC_ID_RV20)
2882 rv20_encode_picture_header(s, picture_number);
2883 else if (s->codec_id == CODEC_ID_FLV1)
2884 ff_flv_encode_picture_header(s, picture_number);
2886 h263_encode_picture_header(s, picture_number);
2889 if (ENABLE_MPEG1VIDEO_ENCODER || ENABLE_MPEG2VIDEO_ENCODER)
2890 mpeg1_encode_picture_header(s, picture_number);
2897 bits= put_bits_count(&s->pb);
2898 s->header_bits= bits - s->last_bits;
2900 for(i=1; i<s->avctx->thread_count; i++){
2901 update_duplicate_context_after_me(s->thread_context[i], s);
2903 s->avctx->execute(s->avctx, encode_thread, (void**)&(s->thread_context[0]), NULL, s->avctx->thread_count);
2904 for(i=1; i<s->avctx->thread_count; i++){
2905 merge_context_after_encode(s, s->thread_context[i]);
2911 void denoise_dct_c(MpegEncContext *s, DCTELEM *block){
2912 const int intra= s->mb_intra;
2915 s->dct_count[intra]++;
2917 for(i=0; i<64; i++){
2918 int level= block[i];
2922 s->dct_error_sum[intra][i] += level;
2923 level -= s->dct_offset[intra][i];
2924 if(level<0) level=0;
2926 s->dct_error_sum[intra][i] -= level;
2927 level += s->dct_offset[intra][i];
2928 if(level>0) level=0;
2935 int dct_quantize_trellis_c(MpegEncContext *s,
2936 DCTELEM *block, int n,
2937 int qscale, int *overflow){
2939 const uint8_t *scantable= s->intra_scantable.scantable;
2940 const uint8_t *perm_scantable= s->intra_scantable.permutated;
2942 unsigned int threshold1, threshold2;
2954 int coeff_count[64];
2955 int qmul, qadd, start_i, last_non_zero, i, dc;
2956 const int esc_length= s->ac_esc_length;
2958 uint8_t * last_length;
2959 const int lambda= s->lambda2 >> (FF_LAMBDA_SHIFT - 6);
2961 s->dsp.fdct (block);
2963 if(s->dct_error_sum)
2964 s->denoise_dct(s, block);
2966 qadd= ((qscale-1)|1)*8;
2977 /* For AIC we skip quant/dequant of INTRADC */
2982 /* note: block[0] is assumed to be positive */
2983 block[0] = (block[0] + (q >> 1)) / q;
2986 qmat = s->q_intra_matrix[qscale];
2987 if(s->mpeg_quant || s->out_format == FMT_MPEG1)
2988 bias= 1<<(QMAT_SHIFT-1);
2989 length = s->intra_ac_vlc_length;
2990 last_length= s->intra_ac_vlc_last_length;
2994 qmat = s->q_inter_matrix[qscale];
2995 length = s->inter_ac_vlc_length;
2996 last_length= s->inter_ac_vlc_last_length;
3000 threshold1= (1<<QMAT_SHIFT) - bias - 1;
3001 threshold2= (threshold1<<1);
3003 for(i=63; i>=start_i; i--) {
3004 const int j = scantable[i];
3005 int level = block[j] * qmat[j];
3007 if(((unsigned)(level+threshold1))>threshold2){
3013 for(i=start_i; i<=last_non_zero; i++) {
3014 const int j = scantable[i];
3015 int level = block[j] * qmat[j];
3017 // if( bias+level >= (1<<(QMAT_SHIFT - 3))
3018 // || bias-level >= (1<<(QMAT_SHIFT - 3))){
3019 if(((unsigned)(level+threshold1))>threshold2){
3021 level= (bias + level)>>QMAT_SHIFT;
3023 coeff[1][i]= level-1;
3024 // coeff[2][k]= level-2;
3026 level= (bias - level)>>QMAT_SHIFT;
3027 coeff[0][i]= -level;
3028 coeff[1][i]= -level+1;
3029 // coeff[2][k]= -level+2;
3031 coeff_count[i]= FFMIN(level, 2);
3032 assert(coeff_count[i]);
3035 coeff[0][i]= (level>>31)|1;
3040 *overflow= s->max_qcoeff < max; //overflow might have happened
3042 if(last_non_zero < start_i){
3043 memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3044 return last_non_zero;
3047 score_tab[start_i]= 0;
3048 survivor[0]= start_i;
3051 for(i=start_i; i<=last_non_zero; i++){
3053 const int dct_coeff= FFABS(block[ scantable[i] ]);
3054 const int zero_distoration= dct_coeff*dct_coeff;
3055 int best_score=256*256*256*120;
3056 for(level_index=0; level_index < coeff_count[i]; level_index++){
3058 int level= coeff[level_index][i];
3059 const int alevel= FFABS(level);
3064 if(s->out_format == FMT_H263){
3065 unquant_coeff= alevel*qmul + qadd;
3067 j= s->dsp.idct_permutation[ scantable[i] ]; //FIXME optimize
3069 unquant_coeff = (int)( alevel * qscale * s->intra_matrix[j]) >> 3;
3070 unquant_coeff = (unquant_coeff - 1) | 1;
3072 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[j])) >> 4;
3073 unquant_coeff = (unquant_coeff - 1) | 1;
3078 distoration= (unquant_coeff - dct_coeff) * (unquant_coeff - dct_coeff) - zero_distoration;
3080 if((level&(~127)) == 0){
3081 for(j=survivor_count-1; j>=0; j--){
3082 int run= i - survivor[j];
3083 int score= distoration + length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3084 score += score_tab[i-run];
3086 if(score < best_score){
3089 level_tab[i+1]= level-64;
3093 if(s->out_format == FMT_H263){
3094 for(j=survivor_count-1; j>=0; j--){
3095 int run= i - survivor[j];
3096 int score= distoration + last_length[UNI_AC_ENC_INDEX(run, level)]*lambda;
3097 score += score_tab[i-run];
3098 if(score < last_score){
3101 last_level= level-64;
3107 distoration += esc_length*lambda;
3108 for(j=survivor_count-1; j>=0; j--){
3109 int run= i - survivor[j];
3110 int score= distoration + score_tab[i-run];
3112 if(score < best_score){
3115 level_tab[i+1]= level-64;
3119 if(s->out_format == FMT_H263){
3120 for(j=survivor_count-1; j>=0; j--){
3121 int run= i - survivor[j];
3122 int score= distoration + score_tab[i-run];
3123 if(score < last_score){
3126 last_level= level-64;
3134 score_tab[i+1]= best_score;
3136 //Note: there is a vlc code in mpeg4 which is 1 bit shorter then another one with a shorter run and the same level
3137 if(last_non_zero <= 27){
3138 for(; survivor_count; survivor_count--){
3139 if(score_tab[ survivor[survivor_count-1] ] <= best_score)
3143 for(; survivor_count; survivor_count--){
3144 if(score_tab[ survivor[survivor_count-1] ] <= best_score + lambda)
3149 survivor[ survivor_count++ ]= i+1;
3152 if(s->out_format != FMT_H263){
3153 last_score= 256*256*256*120;
3154 for(i= survivor[0]; i<=last_non_zero + 1; i++){
3155 int score= score_tab[i];
3156 if(i) score += lambda*2; //FIXME exacter?
3158 if(score < last_score){
3161 last_level= level_tab[i];
3162 last_run= run_tab[i];
3167 s->coded_score[n] = last_score;
3169 dc= FFABS(block[0]);
3170 last_non_zero= last_i - 1;
3171 memset(block + start_i, 0, (64-start_i)*sizeof(DCTELEM));
3173 if(last_non_zero < start_i)
3174 return last_non_zero;
3176 if(last_non_zero == 0 && start_i == 0){
3178 int best_score= dc * dc;
3180 for(i=0; i<coeff_count[0]; i++){
3181 int level= coeff[i][0];
3182 int alevel= FFABS(level);
3183 int unquant_coeff, score, distortion;
3185 if(s->out_format == FMT_H263){
3186 unquant_coeff= (alevel*qmul + qadd)>>3;
3188 unquant_coeff = ((( alevel << 1) + 1) * qscale * ((int) s->inter_matrix[0])) >> 4;
3189 unquant_coeff = (unquant_coeff - 1) | 1;
3191 unquant_coeff = (unquant_coeff + 4) >> 3;
3192 unquant_coeff<<= 3 + 3;
3194 distortion= (unquant_coeff - dc) * (unquant_coeff - dc);
3196 if((level&(~127)) == 0) score= distortion + last_length[UNI_AC_ENC_INDEX(0, level)]*lambda;
3197 else score= distortion + esc_length*lambda;
3199 if(score < best_score){
3201 best_level= level - 64;
3204 block[0]= best_level;
3205 s->coded_score[n] = best_score - dc*dc;
3206 if(best_level == 0) return -1;
3207 else return last_non_zero;
3213 block[ perm_scantable[last_non_zero] ]= last_level;
3216 for(; i>start_i; i -= run_tab[i] + 1){
3217 block[ perm_scantable[i-1] ]= level_tab[i];
3220 return last_non_zero;
3223 //#define REFINE_STATS 1
3224 static int16_t basis[64][64];
3226 static void build_basis(uint8_t *perm){
3233 double s= 0.25*(1<<BASIS_SHIFT);
3235 int perm_index= perm[index];
3236 if(i==0) s*= sqrt(0.5);
3237 if(j==0) s*= sqrt(0.5);
3238 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)));
3245 static int dct_quantize_refine(MpegEncContext *s, //FIXME breaks denoise?
3246 DCTELEM *block, int16_t *weight, DCTELEM *orig,
3249 DECLARE_ALIGNED_16(DCTELEM, d1[64]);
3251 const uint8_t *scantable= s->intra_scantable.scantable;
3252 const uint8_t *perm_scantable= s->intra_scantable.permutated;
3253 // unsigned int threshold1, threshold2;
3258 int qmul, qadd, start_i, last_non_zero, i, dc;
3260 uint8_t * last_length;
3262 int rle_index, run, q = 1, sum; //q is only used when s->mb_intra is true
3265 static int after_last=0;
3266 static int to_zero=0;
3267 static int from_zero=0;
3270 static int messed_sign=0;
3273 if(basis[0][0] == 0)
3274 build_basis(s->dsp.idct_permutation);
3285 /* For AIC we skip quant/dequant of INTRADC */
3289 q <<= RECON_SHIFT-3;
3290 /* note: block[0] is assumed to be positive */
3292 // block[0] = (block[0] + (q >> 1)) / q;
3294 qmat = s->q_intra_matrix[qscale];
3295 // if(s->mpeg_quant || s->out_format == FMT_MPEG1)
3296 // bias= 1<<(QMAT_SHIFT-1);
3297 length = s->intra_ac_vlc_length;
3298 last_length= s->intra_ac_vlc_last_length;
3302 qmat = s->q_inter_matrix[qscale];
3303 length = s->inter_ac_vlc_length;
3304 last_length= s->inter_ac_vlc_last_length;
3306 last_non_zero = s->block_last_index[n];
3311 dc += (1<<(RECON_SHIFT-1));
3312 for(i=0; i<64; i++){
3313 rem[i]= dc - (orig[i]<<RECON_SHIFT); //FIXME use orig dirrectly instead of copying to rem[]
3316 STOP_TIMER("memset rem[]")}
3319 for(i=0; i<64; i++){
3324 w= FFABS(weight[i]) + qns*one;
3325 w= 15 + (48*qns*one + w/2)/w; // 16 .. 63
3328 // w=weight[i] = (63*qns + (w/2)) / w;
3334 lambda= sum*(uint64_t)s->lambda2 >> (FF_LAMBDA_SHIFT - 6 + 6 + 6 + 6);
3340 for(i=start_i; i<=last_non_zero; i++){
3341 int j= perm_scantable[i];
3342 const int level= block[j];
3346 if(level<0) coeff= qmul*level - qadd;
3347 else coeff= qmul*level + qadd;
3348 run_tab[rle_index++]=run;
3351 s->dsp.add_8x8basis(rem, basis[j], coeff);
3357 if(last_non_zero>0){
3358 STOP_TIMER("init rem[]")
3365 int best_score=s->dsp.try_8x8basis(rem, weight, basis[0], 0);
3368 int run2, best_unquant_change=0, analyze_gradient;
3372 analyze_gradient = last_non_zero > 2 || s->avctx->quantizer_noise_shaping >= 3;
3374 if(analyze_gradient){
3378 for(i=0; i<64; i++){
3381 d1[i] = (rem[i]*w*w + (1<<(RECON_SHIFT+12-1)))>>(RECON_SHIFT+12);
3384 STOP_TIMER("rem*w*w")}
3394 const int level= block[0];
3395 int change, old_coeff;
3397 assert(s->mb_intra);
3401 for(change=-1; change<=1; change+=2){
3402 int new_level= level + change;
3403 int score, new_coeff;
3405 new_coeff= q*new_level;
3406 if(new_coeff >= 2048 || new_coeff < 0)
3409 score= s->dsp.try_8x8basis(rem, weight, basis[0], new_coeff - old_coeff);
3410 if(score<best_score){
3413 best_change= change;
3414 best_unquant_change= new_coeff - old_coeff;
3421 run2= run_tab[rle_index++];
3425 for(i=start_i; i<64; i++){
3426 int j= perm_scantable[i];
3427 const int level= block[j];
3428 int change, old_coeff;
3430 if(s->avctx->quantizer_noise_shaping < 3 && i > last_non_zero + 1)
3434 if(level<0) old_coeff= qmul*level - qadd;
3435 else old_coeff= qmul*level + qadd;
3436 run2= run_tab[rle_index++]; //FIXME ! maybe after last
3440 assert(run2>=0 || i >= last_non_zero );
3443 for(change=-1; change<=1; change+=2){
3444 int new_level= level + change;
3445 int score, new_coeff, unquant_change;
3448 if(s->avctx->quantizer_noise_shaping < 2 && FFABS(new_level) > FFABS(level))
3452 if(new_level<0) new_coeff= qmul*new_level - qadd;
3453 else new_coeff= qmul*new_level + qadd;
3454 if(new_coeff >= 2048 || new_coeff <= -2048)
3456 //FIXME check for overflow
3459 if(level < 63 && level > -63){
3460 if(i < last_non_zero)
3461 score += length[UNI_AC_ENC_INDEX(run, new_level+64)]
3462 - length[UNI_AC_ENC_INDEX(run, level+64)];
3464 score += last_length[UNI_AC_ENC_INDEX(run, new_level+64)]
3465 - last_length[UNI_AC_ENC_INDEX(run, level+64)];
3468 assert(FFABS(new_level)==1);
3470 if(analyze_gradient){
3471 int g= d1[ scantable[i] ];
3472 if(g && (g^new_level) >= 0)
3476 if(i < last_non_zero){
3477 int next_i= i + run2 + 1;
3478 int next_level= block[ perm_scantable[next_i] ] + 64;
3480 if(next_level&(~127))
3483 if(next_i < last_non_zero)
3484 score += length[UNI_AC_ENC_INDEX(run, 65)]
3485 + length[UNI_AC_ENC_INDEX(run2, next_level)]
3486 - length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3488 score += length[UNI_AC_ENC_INDEX(run, 65)]
3489 + last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3490 - last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)];
3492 score += last_length[UNI_AC_ENC_INDEX(run, 65)];
3494 score += length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3495 - last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3501 assert(FFABS(level)==1);
3503 if(i < last_non_zero){
3504 int next_i= i + run2 + 1;
3505 int next_level= block[ perm_scantable[next_i] ] + 64;
3507 if(next_level&(~127))
3510 if(next_i < last_non_zero)
3511 score += length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3512 - length[UNI_AC_ENC_INDEX(run2, next_level)]
3513 - length[UNI_AC_ENC_INDEX(run, 65)];
3515 score += last_length[UNI_AC_ENC_INDEX(run + run2 + 1, next_level)]
3516 - last_length[UNI_AC_ENC_INDEX(run2, next_level)]
3517 - length[UNI_AC_ENC_INDEX(run, 65)];
3519 score += -last_length[UNI_AC_ENC_INDEX(run, 65)];
3521 score += last_length[UNI_AC_ENC_INDEX(prev_run, prev_level)]
3522 - length[UNI_AC_ENC_INDEX(prev_run, prev_level)];
3529 unquant_change= new_coeff - old_coeff;
3530 assert((score < 100*lambda && score > -100*lambda) || lambda==0);
3532 score+= s->dsp.try_8x8basis(rem, weight, basis[j], unquant_change);
3533 if(score<best_score){
3536 best_change= change;
3537 best_unquant_change= unquant_change;
3541 prev_level= level + 64;
3542 if(prev_level&(~127))
3551 STOP_TIMER("iterative step")}
3555 int j= perm_scantable[ best_coeff ];
3557 block[j] += best_change;
3559 if(best_coeff > last_non_zero){
3560 last_non_zero= best_coeff;
3568 if(block[j] - best_change){
3569 if(FFABS(block[j]) > FFABS(block[j] - best_change)){
3581 for(; last_non_zero>=start_i; last_non_zero--){
3582 if(block[perm_scantable[last_non_zero]])
3588 if(256*256*256*64 % count == 0){
3589 printf("after_last:%d to_zero:%d from_zero:%d raise:%d lower:%d sign:%d xyp:%d/%d/%d\n", after_last, to_zero, from_zero, raise, lower, messed_sign, s->mb_x, s->mb_y, s->picture_number);
3594 for(i=start_i; i<=last_non_zero; i++){
3595 int j= perm_scantable[i];
3596 const int level= block[j];
3599 run_tab[rle_index++]=run;
3606 s->dsp.add_8x8basis(rem, basis[j], best_unquant_change);
3612 if(last_non_zero>0){
3613 STOP_TIMER("iterative search")
3618 return last_non_zero;
3621 int dct_quantize_c(MpegEncContext *s,
3622 DCTELEM *block, int n,
3623 int qscale, int *overflow)
3625 int i, j, level, last_non_zero, q, start_i;
3627 const uint8_t *scantable= s->intra_scantable.scantable;
3630 unsigned int threshold1, threshold2;
3632 s->dsp.fdct (block);
3634 if(s->dct_error_sum)
3635 s->denoise_dct(s, block);
3645 /* For AIC we skip quant/dequant of INTRADC */
3648 /* note: block[0] is assumed to be positive */
3649 block[0] = (block[0] + (q >> 1)) / q;
3652 qmat = s->q_intra_matrix[qscale];
3653 bias= s->intra_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3657 qmat = s->q_inter_matrix[qscale];
3658 bias= s->inter_quant_bias<<(QMAT_SHIFT - QUANT_BIAS_SHIFT);
3660 threshold1= (1<<QMAT_SHIFT) - bias - 1;
3661 threshold2= (threshold1<<1);
3662 for(i=63;i>=start_i;i--) {
3664 level = block[j] * qmat[j];
3666 if(((unsigned)(level+threshold1))>threshold2){
3673 for(i=start_i; i<=last_non_zero; i++) {
3675 level = block[j] * qmat[j];
3677 // if( bias+level >= (1<<QMAT_SHIFT)
3678 // || bias-level >= (1<<QMAT_SHIFT)){
3679 if(((unsigned)(level+threshold1))>threshold2){
3681 level= (bias + level)>>QMAT_SHIFT;
3684 level= (bias - level)>>QMAT_SHIFT;
3692 *overflow= s->max_qcoeff < max; //overflow might have happened
3694 /* we need this permutation so that we correct the IDCT, we only permute the !=0 elements */
3695 if (s->dsp.idct_permutation_type != FF_NO_IDCT_PERM)
3696 ff_block_permute(block, s->dsp.idct_permutation, scantable, last_non_zero);
3698 return last_non_zero;
3701 AVCodec h263_encoder = {
3705 sizeof(MpegEncContext),
3709 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3712 AVCodec h263p_encoder = {
3716 sizeof(MpegEncContext),
3720 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3723 AVCodec flv_encoder = {
3727 sizeof(MpegEncContext),
3731 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3734 AVCodec rv10_encoder = {
3738 sizeof(MpegEncContext),
3742 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3745 AVCodec rv20_encoder = {
3749 sizeof(MpegEncContext),
3753 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3756 AVCodec mpeg4_encoder = {
3760 sizeof(MpegEncContext),
3764 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3765 .capabilities= CODEC_CAP_DELAY,
3768 AVCodec msmpeg4v1_encoder = {
3772 sizeof(MpegEncContext),
3776 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3779 AVCodec msmpeg4v2_encoder = {
3783 sizeof(MpegEncContext),
3787 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3790 AVCodec msmpeg4v3_encoder = {
3794 sizeof(MpegEncContext),
3798 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},
3801 AVCodec wmv1_encoder = {
3805 sizeof(MpegEncContext),
3809 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},