2 * The simplest mpeg encoder (well, it was the simplest!)
3 * Copyright (c) 2000,2001 Fabrice Bellard.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 * 4MV & hq & b-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
23 #include "mpegvideo.h"
26 #include "fastmemcpy.h"
29 static void encode_picture(MpegEncContext *s, int picture_number);
30 static void dct_unquantize_mpeg1_c(MpegEncContext *s,
31 DCTELEM *block, int n, int qscale);
32 static void dct_unquantize_mpeg2_c(MpegEncContext *s,
33 DCTELEM *block, int n, int qscale);
34 static void dct_unquantize_h263_c(MpegEncContext *s,
35 DCTELEM *block, int n, int qscale);
36 static void draw_edges_c(UINT8 *buf, int wrap, int width, int height, int w);
37 static int dct_quantize_c(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow);
39 int (*dct_quantize)(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow)= dct_quantize_c;
40 void (*draw_edges)(UINT8 *buf, int wrap, int width, int height, int w)= draw_edges_c;
41 static void emulated_edge_mc(MpegEncContext *s, UINT8 *src, int linesize, int block_w, int block_h,
42 int src_x, int src_y, int w, int h);
46 /* enable all paranoid tests for rounding, overflows, etc... */
52 /* for jpeg fast DCT */
55 static const unsigned short aanscales[64] = {
56 /* precomputed values scaled up by 14 bits */
57 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520,
58 22725, 31521, 29692, 26722, 22725, 17855, 12299, 6270,
59 21407, 29692, 27969, 25172, 21407, 16819, 11585, 5906,
60 19266, 26722, 25172, 22654, 19266, 15137, 10426, 5315,
61 16384, 22725, 21407, 19266, 16384, 12873, 8867, 4520,
62 12873, 17855, 16819, 15137, 12873, 10114, 6967, 3552,
63 8867, 12299, 11585, 10426, 8867, 6967, 4799, 2446,
64 4520, 6270, 5906, 5315, 4520, 3552, 2446, 1247
67 static UINT8 h263_chroma_roundtab[16] = {
68 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2,
71 static UINT16 default_mv_penalty[MAX_FCODE+1][MAX_MV*2+1];
72 static UINT8 default_fcode_tab[MAX_MV*2+1];
74 extern UINT8 zigzag_end[64];
76 /* default motion estimation */
77 int motion_estimation_method = ME_EPZS;
79 static void convert_matrix(int (*qmat)[64], uint16_t (*qmat16)[64], uint16_t (*qmat16_bias)[64],
80 const UINT16 *quant_matrix, int bias)
84 for(qscale=1; qscale<32; qscale++){
86 if (av_fdct == fdct_ifast) {
88 const int j= block_permute_op(i);
89 /* 16 <= qscale * quant_matrix[i] <= 7905 */
90 /* 19952 <= aanscales[i] * qscale * quant_matrix[i] <= 249205026 */
91 /* (1<<36)/19952 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= (1<<36)/249205026 */
92 /* 3444240 >= (1<<36)/(aanscales[i] * qscale * quant_matrix[i]) >= 275 */
94 qmat[qscale][j] = (int)((UINT64_C(1) << (QMAT_SHIFT + 11)) /
95 (aanscales[i] * qscale * quant_matrix[j]));
99 /* We can safely suppose that 16 <= quant_matrix[i] <= 255
100 So 16 <= qscale * quant_matrix[i] <= 7905
101 so (1<<19) / 16 >= (1<<19) / (qscale * quant_matrix[i]) >= (1<<19) / 7905
102 so 32768 >= (1<<19) / (qscale * quant_matrix[i]) >= 67
104 qmat [qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[i]);
105 qmat16[qscale][i] = (1 << QMAT_SHIFT_MMX) / (qscale * quant_matrix[block_permute_op(i)]);
107 if(qmat16[qscale][i]==0 || qmat16[qscale][i]==128*256) qmat16[qscale][i]=128*256-1;
109 qmat16_bias[qscale][i]= ROUNDED_DIV(bias<<(16-QUANT_BIAS_SHIFT), qmat16[qscale][i]);
114 // move into common.c perhaps
115 #define CHECKED_ALLOCZ(p, size)\
117 p= av_mallocz(size);\
124 /* init common structure for both encoder and decoder */
125 int MPV_common_init(MpegEncContext *s)
130 s->dct_unquantize_h263 = dct_unquantize_h263_c;
131 s->dct_unquantize_mpeg1 = dct_unquantize_mpeg1_c;
132 s->dct_unquantize_mpeg2 = dct_unquantize_mpeg2_c;
135 MPV_common_init_mmx(s);
138 MPV_common_init_axp(s);
140 //setup default unquantizers (mpeg4 might change it later)
141 if(s->out_format == FMT_H263)
142 s->dct_unquantize = s->dct_unquantize_h263;
144 s->dct_unquantize = s->dct_unquantize_mpeg1;
146 s->mb_width = (s->width + 15) / 16;
147 s->mb_height = (s->height + 15) / 16;
148 s->mb_num = s->mb_width * s->mb_height;
149 if(!(s->flags&CODEC_FLAG_DR1)){
150 s->linesize = s->mb_width * 16 + 2 * EDGE_WIDTH;
151 s->uvlinesize = s->mb_width * 8 + EDGE_WIDTH;
154 int w, h, shift, pict_start;
157 h = s->mb_height * 16 + 2 * EDGE_WIDTH;
158 shift = (i == 0) ? 0 : 1;
159 c_size = (s->linesize>>shift) * (h >> shift);
160 pict_start = (s->linesize>>shift) * (EDGE_WIDTH >> shift) + (EDGE_WIDTH >> shift);
162 CHECKED_ALLOCZ(pict, c_size)
163 s->last_picture_base[i] = pict;
164 s->last_picture[i] = pict + pict_start;
165 if(i>0) memset(s->last_picture_base[i], 128, c_size);
167 CHECKED_ALLOCZ(pict, c_size)
168 s->next_picture_base[i] = pict;
169 s->next_picture[i] = pict + pict_start;
170 if(i>0) memset(s->next_picture_base[i], 128, c_size);
172 if (s->has_b_frames || s->codec_id==CODEC_ID_MPEG4) {
173 /* Note the MPEG4 stuff is here cuz of buggy encoders which dont set the low_delay flag but
174 do low-delay encoding, so we cant allways distinguish b-frame containing streams from low_delay streams */
175 CHECKED_ALLOCZ(pict, c_size)
176 s->aux_picture_base[i] = pict;
177 s->aux_picture[i] = pict + pict_start;
178 if(i>0) memset(s->aux_picture_base[i], 128, c_size);
181 s->ip_buffer_count= 2;
184 CHECKED_ALLOCZ(s->edge_emu_buffer, (s->width+64)*2*17*2); //(width + edge + align)*interlaced*MBsize*tolerance
188 int mv_table_size= (s->mb_width+2)*(s->mb_height+2);
190 CHECKED_ALLOCZ(s->mb_var , s->mb_num * sizeof(INT16))
191 CHECKED_ALLOCZ(s->mc_mb_var, s->mb_num * sizeof(INT16))
193 /* Allocate MV tables */
194 CHECKED_ALLOCZ(s->p_mv_table , mv_table_size * 2 * sizeof(INT16))
195 CHECKED_ALLOCZ(s->b_forw_mv_table , mv_table_size * 2 * sizeof(INT16))
196 CHECKED_ALLOCZ(s->b_back_mv_table , mv_table_size * 2 * sizeof(INT16))
197 CHECKED_ALLOCZ(s->b_bidir_forw_mv_table , mv_table_size * 2 * sizeof(INT16))
198 CHECKED_ALLOCZ(s->b_bidir_back_mv_table , mv_table_size * 2 * sizeof(INT16))
199 CHECKED_ALLOCZ(s->b_direct_forw_mv_table, mv_table_size * 2 * sizeof(INT16))
200 CHECKED_ALLOCZ(s->b_direct_back_mv_table, mv_table_size * 2 * sizeof(INT16))
201 CHECKED_ALLOCZ(s->b_direct_mv_table , mv_table_size * 2 * sizeof(INT16))
203 CHECKED_ALLOCZ(s->me_scratchpad, s->linesize*16*3*sizeof(uint8_t))
205 CHECKED_ALLOCZ(s->me_map , ME_MAP_SIZE*sizeof(uint32_t))
206 CHECKED_ALLOCZ(s->me_score_map, ME_MAP_SIZE*sizeof(uint16_t))
209 for(j=0; j<REORDER_BUFFER_SIZE; j++){
215 h = s->mb_height * 16;
216 shift = (i == 0) ? 0 : 1;
217 c_size = (w >> shift) * (h >> shift);
219 CHECKED_ALLOCZ(pict, c_size);
220 s->picture_buffer[j][i] = pict;
225 if(s->codec_id==CODEC_ID_MPEG4){
226 CHECKED_ALLOCZ(s->tex_pb_buffer, PB_BUFFER_SIZE);
227 CHECKED_ALLOCZ( s->pb2_buffer, PB_BUFFER_SIZE);
231 if (s->out_format == FMT_H263 || s->encoding) {
233 /* Allocate MB type table */
234 CHECKED_ALLOCZ(s->mb_type , s->mb_num * sizeof(UINT8))
237 size = (2 * s->mb_width + 2) * (2 * s->mb_height + 2);
238 CHECKED_ALLOCZ(s->motion_val, size * 2 * sizeof(INT16));
241 if (s->h263_pred || s->h263_plus) {
242 int y_size, c_size, i, size;
246 y_size = (2 * s->mb_width + 2) * (2 * s->mb_height + 2);
247 c_size = (s->mb_width + 2) * (s->mb_height + 2);
248 size = y_size + 2 * c_size;
249 CHECKED_ALLOCZ(s->dc_val[0], size * sizeof(INT16));
250 s->dc_val[1] = s->dc_val[0] + y_size;
251 s->dc_val[2] = s->dc_val[1] + c_size;
253 s->dc_val[0][i] = 1024;
256 CHECKED_ALLOCZ(s->ac_val[0], size * sizeof(INT16) * 16);
257 s->ac_val[1] = s->ac_val[0] + y_size;
258 s->ac_val[2] = s->ac_val[1] + c_size;
261 CHECKED_ALLOCZ(s->coded_block, y_size);
263 /* which mb is a intra block */
264 CHECKED_ALLOCZ(s->mbintra_table, s->mb_num);
265 memset(s->mbintra_table, 1, s->mb_num);
267 /* divx501 bitstream reorder buffer */
268 CHECKED_ALLOCZ(s->bitstream_buffer, BITSTREAM_BUFFER_SIZE);
270 /* cbp, ac_pred, pred_dir */
271 CHECKED_ALLOCZ(s->cbp_table , s->mb_num * sizeof(UINT8))
272 CHECKED_ALLOCZ(s->pred_dir_table, s->mb_num * sizeof(UINT8))
274 CHECKED_ALLOCZ(s->qscale_table , s->mb_num * sizeof(UINT8))
276 /* default structure is frame */
277 s->picture_structure = PICT_FRAME;
279 /* init macroblock skip table */
280 CHECKED_ALLOCZ(s->mbskip_table, s->mb_num);
282 s->block= s->blocks[0];
284 s->context_initialized = 1;
294 /* init common structure for both encoder and decoder */
295 void MPV_common_end(MpegEncContext *s)
299 av_freep(&s->mb_type);
300 av_freep(&s->mb_var);
301 av_freep(&s->mc_mb_var);
302 av_freep(&s->p_mv_table);
303 av_freep(&s->b_forw_mv_table);
304 av_freep(&s->b_back_mv_table);
305 av_freep(&s->b_bidir_forw_mv_table);
306 av_freep(&s->b_bidir_back_mv_table);
307 av_freep(&s->b_direct_forw_mv_table);
308 av_freep(&s->b_direct_back_mv_table);
309 av_freep(&s->b_direct_mv_table);
310 av_freep(&s->motion_val);
311 av_freep(&s->dc_val[0]);
312 av_freep(&s->ac_val[0]);
313 av_freep(&s->coded_block);
314 av_freep(&s->mbintra_table);
315 av_freep(&s->cbp_table);
316 av_freep(&s->pred_dir_table);
317 av_freep(&s->qscale_table);
318 av_freep(&s->me_scratchpad);
319 av_freep(&s->me_map);
320 av_freep(&s->me_score_map);
322 av_freep(&s->mbskip_table);
323 av_freep(&s->bitstream_buffer);
324 av_freep(&s->tex_pb_buffer);
325 av_freep(&s->pb2_buffer);
326 av_freep(&s->edge_emu_buffer);
330 if(!(s->flags&CODEC_FLAG_DR1)){
331 av_freep(&s->last_picture_base[i]);
332 av_freep(&s->next_picture_base[i]);
333 av_freep(&s->aux_picture_base[i]);
335 s->last_picture_base[i]=
336 s->next_picture_base[i]=
337 s->aux_picture_base [i] = NULL;
340 s->aux_picture [i] = NULL;
342 for(j=0; j<REORDER_BUFFER_SIZE; j++){
343 av_freep(&s->picture_buffer[j][i]);
346 s->context_initialized = 0;
349 /* init video encoder */
350 int MPV_encode_init(AVCodecContext *avctx)
352 MpegEncContext *s = avctx->priv_data;
355 avctx->pix_fmt = PIX_FMT_YUV420P;
357 s->bit_rate = avctx->bit_rate;
358 s->bit_rate_tolerance = avctx->bit_rate_tolerance;
359 s->frame_rate = avctx->frame_rate;
360 s->width = avctx->width;
361 s->height = avctx->height;
362 if(avctx->gop_size > 600){
363 fprintf(stderr, "Warning keyframe interval too large! reducing it ...\n");
366 s->gop_size = avctx->gop_size;
367 s->rtp_mode = avctx->rtp_mode;
368 s->rtp_payload_size = avctx->rtp_payload_size;
369 if (avctx->rtp_callback)
370 s->rtp_callback = avctx->rtp_callback;
371 s->qmin= avctx->qmin;
372 s->qmax= avctx->qmax;
373 s->max_qdiff= avctx->max_qdiff;
374 s->qcompress= avctx->qcompress;
375 s->qblur= avctx->qblur;
376 s->b_quant_factor= avctx->b_quant_factor;
377 s->b_quant_offset= avctx->b_quant_offset;
379 s->aspect_ratio_info= avctx->aspect_ratio_info;
380 s->flags= avctx->flags;
381 s->max_b_frames= avctx->max_b_frames;
382 s->rc_strategy= avctx->rc_strategy;
383 s->b_frame_strategy= avctx->b_frame_strategy;
384 s->codec_id= avctx->codec->id;
385 s->luma_elim_threshold = avctx->luma_elim_threshold;
386 s->chroma_elim_threshold= avctx->chroma_elim_threshold;
387 s->strict_std_compliance= avctx->strict_std_compliance;
388 s->data_partitioning= avctx->flags & CODEC_FLAG_PART;
390 if (s->gop_size <= 1) {
398 if (avctx->me_method == 0)
399 /* For compatibility */
400 s->me_method = motion_estimation_method;
402 s->me_method = avctx->me_method;
405 s->fixed_qscale = (avctx->flags & CODEC_FLAG_QSCALE);
407 switch(avctx->codec->id) {
408 case CODEC_ID_MPEG1VIDEO:
409 s->out_format = FMT_MPEG1;
410 avctx->delay=0; //FIXME not sure, should check the spec
413 s->out_format = FMT_MJPEG;
414 s->intra_only = 1; /* force intra only for jpeg */
415 s->mjpeg_write_tables = 1; /* write all tables */
416 s->mjpeg_data_only_frames = 0; /* write all the needed headers */
417 s->mjpeg_vsample[0] = 2; /* set up default sampling factors */
418 s->mjpeg_vsample[1] = 1; /* the only currently supported values */
419 s->mjpeg_vsample[2] = 1;
420 s->mjpeg_hsample[0] = 2;
421 s->mjpeg_hsample[1] = 1;
422 s->mjpeg_hsample[2] = 1;
423 if (mjpeg_init(s) < 0)
428 if (h263_get_picture_format(s->width, s->height) == 7) {
429 printf("Input picture size isn't suitable for h263 codec! try h263+\n");
432 s->out_format = FMT_H263;
436 s->out_format = FMT_H263;
438 s->rtp_payload_size = 1200;
440 s->unrestricted_mv = 1;
443 /* These are just to be sure */
449 s->out_format = FMT_H263;
454 s->out_format = FMT_H263;
456 s->unrestricted_mv = 1;
457 s->has_b_frames= s->max_b_frames ? 1 : 0;
459 avctx->delay= s->low_delay ? 0 : (s->max_b_frames + 1);
461 case CODEC_ID_MSMPEG4V1:
462 s->out_format = FMT_H263;
465 s->unrestricted_mv = 1;
466 s->msmpeg4_version= 1;
469 case CODEC_ID_MSMPEG4V2:
470 s->out_format = FMT_H263;
473 s->unrestricted_mv = 1;
474 s->msmpeg4_version= 2;
477 case CODEC_ID_MSMPEG4V3:
478 s->out_format = FMT_H263;
481 s->unrestricted_mv = 1;
482 s->msmpeg4_version= 3;
486 s->out_format = FMT_H263;
489 s->unrestricted_mv = 1;
490 s->msmpeg4_version= 4;
494 s->out_format = FMT_H263;
497 s->unrestricted_mv = 1;
498 s->msmpeg4_version= 5;
505 { /* set up some save defaults, some codecs might override them later */
510 memset(default_mv_penalty, 0, sizeof(UINT16)*(MAX_FCODE+1)*(2*MAX_MV+1));
511 memset(default_fcode_tab , 0, sizeof(UINT8)*(2*MAX_MV+1));
513 for(i=-16; i<16; i++){
514 default_fcode_tab[i + MAX_MV]= 1;
518 s->mv_penalty= default_mv_penalty;
519 s->fcode_tab= default_fcode_tab;
521 s->c_dc_scale_table= ff_mpeg1_dc_scale_table;
523 if (s->out_format == FMT_H263)
525 else if (s->out_format == FMT_MPEG1)
526 ff_mpeg1_encode_init(s);
527 if(s->msmpeg4_version)
528 ff_msmpeg4_encode_init(s);
530 /* dont use mv_penalty table for crap MV as it would be confused */
531 if (s->me_method < ME_EPZS) s->mv_penalty = default_mv_penalty;
536 if (MPV_common_init(s) < 0)
539 /* init default q matrix */
541 if(s->out_format == FMT_H263)
542 s->intra_matrix[i] = ff_mpeg1_default_non_intra_matrix[i];
544 s->intra_matrix[i] = ff_mpeg1_default_intra_matrix[i];
546 s->inter_matrix[i] = ff_mpeg1_default_non_intra_matrix[i];
549 /* precompute matrix */
550 /* for mjpeg, we do include qscale in the matrix */
551 if (s->out_format != FMT_MJPEG) {
552 convert_matrix(s->q_intra_matrix, s->q_intra_matrix16, s->q_intra_matrix16_bias,
553 s->intra_matrix, s->intra_quant_bias);
554 convert_matrix(s->q_inter_matrix, s->q_inter_matrix16, s->q_inter_matrix16_bias,
555 s->inter_matrix, s->inter_quant_bias);
558 if(ff_rate_control_init(s) < 0)
561 s->picture_number = 0;
562 s->picture_in_gop_number = 0;
563 s->fake_picture_number = 0;
564 /* motion detector init */
571 int MPV_encode_end(AVCodecContext *avctx)
573 MpegEncContext *s = avctx->priv_data;
579 ff_rate_control_uninit(s);
582 if (s->out_format == FMT_MJPEG)
588 /* draw the edges of width 'w' of an image of size width, height */
589 static void draw_edges_c(UINT8 *buf, int wrap, int width, int height, int w)
591 UINT8 *ptr, *last_line;
594 last_line = buf + (height - 1) * wrap;
597 memcpy(buf - (i + 1) * wrap, buf, width);
598 memcpy(last_line + (i + 1) * wrap, last_line, width);
602 for(i=0;i<height;i++) {
603 memset(ptr - w, ptr[0], w);
604 memset(ptr + width, ptr[width-1], w);
609 memset(buf - (i + 1) * wrap - w, buf[0], w); /* top left */
610 memset(buf - (i + 1) * wrap + width, buf[width-1], w); /* top right */
611 memset(last_line + (i + 1) * wrap - w, last_line[0], w); /* top left */
612 memset(last_line + (i + 1) * wrap + width, last_line[width-1], w); /* top right */
616 /* generic function for encode/decode called before a frame is coded/decoded */
617 void MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
624 avctx->mbskip_table= s->mbskip_table;
626 if(avctx->flags&CODEC_FLAG_DR1){
628 avctx->get_buffer_callback(avctx, s->width, s->height, s->pict_type);
630 s->linesize = avctx->dr_stride;
631 s->uvlinesize= avctx->dr_uvstride;
632 s->ip_buffer_count= avctx->dr_ip_buffer_count;
634 avctx->dr_ip_buffer_count= s->ip_buffer_count;
636 if (s->pict_type == B_TYPE) {
638 if(avctx->flags&CODEC_FLAG_DR1)
639 s->aux_picture[i]= avctx->dr_buffer[i];
641 //FIXME the following should never be needed, the decoder should drop b frames if no reference is available
642 if(s->next_picture[i]==NULL)
643 s->next_picture[i]= s->aux_picture[i];
644 if(s->last_picture[i]==NULL)
645 s->last_picture[i]= s->next_picture[i];
647 s->current_picture[i] = s->aux_picture[i];
651 /* swap next and last */
652 if(avctx->flags&CODEC_FLAG_DR1)
653 tmp= avctx->dr_buffer[i];
655 tmp = s->last_picture[i];
657 s->last_picture[i] = s->next_picture[i];
658 s->next_picture[i] = tmp;
659 s->current_picture[i] = tmp;
661 s->last_dr_opaque= s->next_dr_opaque;
662 s->next_dr_opaque= avctx->dr_opaque_frame;
664 if(s->has_b_frames && s->last_dr_opaque && s->codec_id!=CODEC_ID_SVQ1)
665 avctx->dr_opaque_frame= s->last_dr_opaque;
667 avctx->dr_opaque_frame= s->next_dr_opaque;
672 /* generic function for encode/decode called after a frame has been coded/decoded */
673 void MPV_frame_end(MpegEncContext *s)
675 // if((s->picture_number%100)==0 && s->encoding) printf("sads:%d //\n", sads);
677 /* draw edge for correct motion prediction if outside */
678 if (s->pict_type != B_TYPE && !s->intra_only && !(s->flags&CODEC_FLAG_EMU_EDGE)) {
679 if(s->avctx==NULL || s->avctx->codec->id!=CODEC_ID_MPEG4 || s->divx_version>=500){
680 draw_edges(s->current_picture[0], s->linesize, s->mb_width*16, s->mb_height*16, EDGE_WIDTH);
681 draw_edges(s->current_picture[1], s->uvlinesize, s->mb_width*8, s->mb_height*8, EDGE_WIDTH/2);
682 draw_edges(s->current_picture[2], s->uvlinesize, s->mb_width*8, s->mb_height*8, EDGE_WIDTH/2);
684 /* mpeg4? / opendivx / xvid */
685 draw_edges(s->current_picture[0], s->linesize, s->width, s->height, EDGE_WIDTH);
686 draw_edges(s->current_picture[1], s->uvlinesize, s->width/2, s->height/2, EDGE_WIDTH/2);
687 draw_edges(s->current_picture[2], s->uvlinesize, s->width/2, s->height/2, EDGE_WIDTH/2);
692 if(s->pict_type!=B_TYPE){
693 s->last_non_b_pict_type= s->pict_type;
694 s->last_non_b_qscale= s->qscale;
695 s->last_non_b_mc_mb_var= s->mc_mb_var_sum;
696 s->num_available_buffers++;
697 if(s->num_available_buffers>2) s->num_available_buffers= 2;
701 /* reorder input for encoding */
702 void reorder_input(MpegEncContext *s, AVPicture *pict)
706 if(s->max_b_frames > FF_MAX_B_FRAMES) s->max_b_frames= FF_MAX_B_FRAMES;
708 // delay= s->max_b_frames+1; (or 0 if no b frames cuz decoder diff)
710 for(j=0; j<REORDER_BUFFER_SIZE-1; j++){
711 s->coded_order[j]= s->coded_order[j+1];
713 s->coded_order[j].picture[0]= s->coded_order[j].picture[1]= s->coded_order[j].picture[2]= NULL; //catch uninitalized buffers
714 s->coded_order[j].pict_type=0;
716 switch(s->input_pict_type){
721 index= s->max_b_frames - s->b_frames_since_non_b;
722 s->b_frames_since_non_b=0;
725 index= s->max_b_frames + 1;
726 s->b_frames_since_non_b++;
729 //printf("index:%d type:%d strides: %d %d\n", index, s->input_pict_type, pict->linesize[0], s->linesize);
730 if( (index==0 || (s->flags&CODEC_FLAG_INPUT_PRESERVED))
731 && pict->linesize[0] == s->linesize
732 && pict->linesize[1] == s->uvlinesize
733 && pict->linesize[2] == s->uvlinesize){
736 s->coded_order[index].picture[i]= pict->data[i];
741 uint8_t *src = pict->data[i];
743 int src_wrap = pict->linesize[i];
744 int dest_wrap = s->linesize;
748 if(index==0) dest= s->last_picture[i]+16; //is current_picture indeed but the switch hapens after reordering
749 else dest= s->picture_buffer[s->picture_buffer_index][i];
757 s->coded_order[index].picture[i]= dest;
759 memcpy(dest, src, w);
765 s->picture_buffer_index++;
766 if(s->picture_buffer_index >= REORDER_BUFFER_SIZE-1) s->picture_buffer_index=0;
769 s->coded_order[index].pict_type = s->input_pict_type;
770 s->coded_order[index].qscale = s->input_qscale;
771 s->coded_order[index].force_type= s->force_input_type;
772 s->coded_order[index].picture_in_gop_number= s->input_picture_in_gop_number;
773 s->coded_order[index].picture_number= s->input_picture_number;
776 s->new_picture[i]= s->coded_order[0].picture[i];
780 int MPV_encode_picture(AVCodecContext *avctx,
781 unsigned char *buf, int buf_size, void *data)
783 MpegEncContext *s = avctx->priv_data;
784 AVPicture *pict = data;
786 s->input_qscale = avctx->quality;
788 init_put_bits(&s->pb, buf, buf_size, NULL, NULL);
790 if(avctx->flags&CODEC_FLAG_TYPE){
792 s->force_input_type= avctx->key_frame ? I_TYPE : P_TYPE;
793 }else if(s->flags&CODEC_FLAG_PASS2){
795 s->force_input_type= s->rc_context.entry[s->input_picture_number].new_pict_type;
797 s->force_input_type=0;
798 if (!s->intra_only) {
799 /* first picture of GOP is intra */
800 if (s->input_picture_in_gop_number % s->gop_size==0){
801 s->input_pict_type = I_TYPE;
802 }else if(s->max_b_frames==0){
803 s->input_pict_type = P_TYPE;
805 if(s->b_frames_since_non_b < s->max_b_frames) //FIXME more IQ
806 s->input_pict_type = B_TYPE;
808 s->input_pict_type = P_TYPE;
811 s->input_pict_type = I_TYPE;
815 if(s->input_pict_type==I_TYPE)
816 s->input_picture_in_gop_number=0;
818 reorder_input(s, pict);
821 if(s->coded_order[0].picture[0]){
823 s->pict_type= s->coded_order[0].pict_type;
824 if (s->fixed_qscale) /* the ratecontrol needs the last qscale so we dont touch it for CBR */
825 s->qscale= s->coded_order[0].qscale;
826 s->force_type= s->coded_order[0].force_type;
827 s->picture_in_gop_number= s->coded_order[0].picture_in_gop_number;
828 s->picture_number= s->coded_order[0].picture_number;
830 MPV_frame_start(s, avctx);
832 encode_picture(s, s->picture_number);
833 avctx->key_frame = (s->pict_type == I_TYPE);
834 avctx->pict_type = s->pict_type;
835 avctx->real_pict_num = s->picture_number;
836 avctx->header_bits = s->header_bits;
837 avctx->mv_bits = s->mv_bits;
838 avctx->misc_bits = s->misc_bits;
839 avctx->i_tex_bits = s->i_tex_bits;
840 avctx->p_tex_bits = s->p_tex_bits;
841 avctx->i_count = s->i_count;
842 avctx->p_count = s->p_count;
843 avctx->skip_count = s->skip_count;
847 if (s->out_format == FMT_MJPEG)
848 mjpeg_picture_trailer(s);
850 avctx->quality = s->qscale;
852 if(s->flags&CODEC_FLAG_PASS1)
853 ff_write_pass1_stats(s);
857 s->input_picture_number++;
858 s->input_picture_in_gop_number++;
860 flush_put_bits(&s->pb);
861 s->frame_bits = (pbBufPtr(&s->pb) - s->pb.buf) * 8;
862 if(s->pict_type==B_TYPE) s->pb_frame_bits+= s->frame_bits;
863 else s->pb_frame_bits= s->frame_bits;
865 s->total_bits += s->frame_bits;
866 avctx->frame_bits = s->frame_bits;
867 //printf("fcode: %d, type: %d, head: %d, mv: %d, misc: %d, frame: %d, itex: %d, ptex: %d\n",
868 //s->f_code, avctx->key_frame, s->header_bits, s->mv_bits, s->misc_bits, s->frame_bits, s->i_tex_bits, s->p_tex_bits);
870 if (avctx->get_psnr) {
871 /* At this point pict->data should have the original frame */
872 /* an s->current_picture should have the coded/decoded frame */
873 get_psnr(pict->data, s->current_picture,
874 pict->linesize, s->linesize, avctx);
875 // printf("%f\n", avctx->psnr_y);
877 return pbBufPtr(&s->pb) - s->pb.buf;
880 static inline void gmc1_motion(MpegEncContext *s,
881 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
883 UINT8 **ref_picture, int src_offset,
887 int offset, src_x, src_y, linesize, uvlinesize;
888 int motion_x, motion_y;
891 if(s->real_sprite_warping_points>1) printf("more than 1 warp point isnt supported\n");
892 motion_x= s->sprite_offset[0][0];
893 motion_y= s->sprite_offset[0][1];
894 src_x = s->mb_x * 16 + (motion_x >> (s->sprite_warping_accuracy+1));
895 src_y = s->mb_y * 16 + (motion_y >> (s->sprite_warping_accuracy+1));
896 motion_x<<=(3-s->sprite_warping_accuracy);
897 motion_y<<=(3-s->sprite_warping_accuracy);
898 src_x = clip(src_x, -16, s->width);
899 if (src_x == s->width)
901 src_y = clip(src_y, -16, s->height);
902 if (src_y == s->height)
905 linesize = s->linesize;
906 uvlinesize = s->uvlinesize;
907 ptr = ref_picture[0] + (src_y * linesize) + src_x + src_offset;
910 if(s->flags&CODEC_FLAG_EMU_EDGE){
911 if(src_x<0 || src_y<0 || src_x + (motion_x&15) + 16 > s->width
912 || src_y + (motion_y&15) + h > s->height){
913 emulated_edge_mc(s, ptr, linesize, 17, h+1, src_x, src_y, s->width, s->height);
914 ptr= s->edge_emu_buffer;
918 gmc1(dest_y , ptr , linesize, h, motion_x&15, motion_y&15, s->no_rounding);
919 gmc1(dest_y+8, ptr+8, linesize, h, motion_x&15, motion_y&15, s->no_rounding);
921 motion_x= s->sprite_offset[1][0];
922 motion_y= s->sprite_offset[1][1];
923 src_x = s->mb_x * 8 + (motion_x >> (s->sprite_warping_accuracy+1));
924 src_y = s->mb_y * 8 + (motion_y >> (s->sprite_warping_accuracy+1));
925 motion_x<<=(3-s->sprite_warping_accuracy);
926 motion_y<<=(3-s->sprite_warping_accuracy);
927 src_x = clip(src_x, -8, s->width>>1);
928 if (src_x == s->width>>1)
930 src_y = clip(src_y, -8, s->height>>1);
931 if (src_y == s->height>>1)
934 offset = (src_y * uvlinesize) + src_x + (src_offset>>1);
935 ptr = ref_picture[1] + offset;
937 emulated_edge_mc(s, ptr, uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, s->height>>1);
938 ptr= s->edge_emu_buffer;
940 gmc1(dest_cb + (dest_offset>>1), ptr, uvlinesize, h>>1, motion_x&15, motion_y&15, s->no_rounding);
942 ptr = ref_picture[2] + offset;
944 emulated_edge_mc(s, ptr, uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, s->height>>1);
945 ptr= s->edge_emu_buffer;
947 gmc1(dest_cr + (dest_offset>>1), ptr, uvlinesize, h>>1, motion_x&15, motion_y&15, s->no_rounding);
952 static void emulated_edge_mc(MpegEncContext *s, UINT8 *src, int linesize, int block_w, int block_h,
953 int src_x, int src_y, int w, int h){
955 int start_y, start_x, end_y, end_x;
956 UINT8 *buf= s->edge_emu_buffer;
958 if(s->codec_id!=CODEC_ID_MPEG4 || s->divx_version>=500){
969 src+= (h-1-src_y)*linesize;
971 }else if(src_y<=-block_h){
972 src+= (1-block_h-src_y)*linesize;
978 }else if(src_x<=-block_w){
979 src+= (1-block_w-src_x);
983 start_y= MAX(0, -src_y);
984 start_x= MAX(0, -src_x);
985 end_y= MIN(block_h, h-src_y);
986 end_x= MIN(block_w, w-src_x);
988 // copy existing part
989 for(y=start_y; y<end_y; y++){
990 for(x=start_x; x<end_x; x++){
991 buf[x + y*linesize]= src[x + y*linesize];
996 for(y=0; y<start_y; y++){
997 for(x=start_x; x<end_x; x++){
998 buf[x + y*linesize]= buf[x + start_y*linesize];
1003 for(y=end_y; y<block_h; y++){
1004 for(x=start_x; x<end_x; x++){
1005 buf[x + y*linesize]= buf[x + (end_y-1)*linesize];
1009 for(y=0; y<block_h; y++){
1011 for(x=0; x<start_x; x++){
1012 buf[x + y*linesize]= buf[start_x + y*linesize];
1016 for(x=end_x; x<block_w; x++){
1017 buf[x + y*linesize]= buf[end_x - 1 + y*linesize];
1023 /* apply one mpeg motion vector to the three components */
1024 static inline void mpeg_motion(MpegEncContext *s,
1025 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
1027 UINT8 **ref_picture, int src_offset,
1028 int field_based, op_pixels_func *pix_op,
1029 int motion_x, int motion_y, int h)
1032 int dxy, offset, mx, my, src_x, src_y, height, linesize, uvlinesize;
1035 if(s->quarter_sample)
1040 dxy = ((motion_y & 1) << 1) | (motion_x & 1);
1041 src_x = s->mb_x * 16 + (motion_x >> 1);
1042 src_y = s->mb_y * (16 >> field_based) + (motion_y >> 1);
1044 /* WARNING: do no forget half pels */
1045 height = s->height >> field_based;
1046 src_x = clip(src_x, -16, s->width);
1047 if (src_x == s->width)
1049 src_y = clip(src_y, -16, height);
1050 if (src_y == height)
1052 linesize = s->linesize << field_based;
1053 uvlinesize = s->uvlinesize << field_based;
1054 ptr = ref_picture[0] + (src_y * linesize) + (src_x) + src_offset;
1055 dest_y += dest_offset;
1057 if(s->flags&CODEC_FLAG_EMU_EDGE){
1058 if(src_x<0 || src_y<0 || src_x + (motion_x&1) + 16 > s->width
1059 || src_y + (motion_y&1) + h > height){
1060 emulated_edge_mc(s, ptr, linesize, 17, h+1, src_x, src_y, s->width, height);
1061 ptr= s->edge_emu_buffer;
1065 pix_op[dxy](dest_y, ptr, linesize, h);
1066 pix_op[dxy](dest_y + 8, ptr + 8, linesize, h);
1068 if(s->flags&CODEC_FLAG_GRAY) return;
1070 if (s->out_format == FMT_H263) {
1072 if ((motion_x & 3) != 0)
1074 if ((motion_y & 3) != 0)
1081 dxy = ((my & 1) << 1) | (mx & 1);
1086 src_x = s->mb_x * 8 + mx;
1087 src_y = s->mb_y * (8 >> field_based) + my;
1088 src_x = clip(src_x, -8, s->width >> 1);
1089 if (src_x == (s->width >> 1))
1091 src_y = clip(src_y, -8, height >> 1);
1092 if (src_y == (height >> 1))
1094 offset = (src_y * uvlinesize) + src_x + (src_offset >> 1);
1095 ptr = ref_picture[1] + offset;
1097 emulated_edge_mc(s, ptr, uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, height>>1);
1098 ptr= s->edge_emu_buffer;
1100 pix_op[dxy](dest_cb + (dest_offset >> 1), ptr, uvlinesize, h >> 1);
1102 ptr = ref_picture[2] + offset;
1104 emulated_edge_mc(s, ptr, uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, height>>1);
1105 ptr= s->edge_emu_buffer;
1107 pix_op[dxy](dest_cr + (dest_offset >> 1), ptr, uvlinesize, h >> 1);
1110 static inline void qpel_motion(MpegEncContext *s,
1111 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
1113 UINT8 **ref_picture, int src_offset,
1114 int field_based, op_pixels_func *pix_op,
1115 qpel_mc_func *qpix_op,
1116 int motion_x, int motion_y, int h)
1119 int dxy, offset, mx, my, src_x, src_y, height, linesize;
1122 dxy = ((motion_y & 3) << 2) | (motion_x & 3);
1123 src_x = s->mb_x * 16 + (motion_x >> 2);
1124 src_y = s->mb_y * (16 >> field_based) + (motion_y >> 2);
1126 height = s->height >> field_based;
1127 src_x = clip(src_x, -16, s->width);
1128 if (src_x == s->width)
1130 src_y = clip(src_y, -16, height);
1131 if (src_y == height)
1133 linesize = s->linesize << field_based;
1134 ptr = ref_picture[0] + (src_y * linesize) + src_x + src_offset;
1135 dest_y += dest_offset;
1136 //printf("%d %d %d\n", src_x, src_y, dxy);
1138 if(s->flags&CODEC_FLAG_EMU_EDGE){
1139 if(src_x<0 || src_y<0 || src_x + (motion_x&3) + 16 > s->width
1140 || src_y + (motion_y&3) + h > height){
1141 emulated_edge_mc(s, ptr, linesize, 17, h+1, src_x, src_y, s->width, height);
1142 ptr= s->edge_emu_buffer;
1146 qpix_op[dxy](dest_y , ptr , linesize, linesize, motion_x&3, motion_y&3);
1147 qpix_op[dxy](dest_y + 8, ptr + 8, linesize, linesize, motion_x&3, motion_y&3);
1148 qpix_op[dxy](dest_y + linesize*8 , ptr + linesize*8 , linesize, linesize, motion_x&3, motion_y&3);
1149 qpix_op[dxy](dest_y + linesize*8 + 8, ptr + linesize*8 + 8, linesize, linesize, motion_x&3, motion_y&3);
1151 if(s->flags&CODEC_FLAG_GRAY) return;
1153 mx= (motion_x>>1) | (motion_x&1);
1154 my= (motion_y>>1) | (motion_y&1);
1164 src_x = s->mb_x * 8 + mx;
1165 src_y = s->mb_y * (8 >> field_based) + my;
1166 src_x = clip(src_x, -8, s->width >> 1);
1167 if (src_x == (s->width >> 1))
1169 src_y = clip(src_y, -8, height >> 1);
1170 if (src_y == (height >> 1))
1173 offset = (src_y * s->uvlinesize) + src_x + (src_offset >> 1);
1174 ptr = ref_picture[1] + offset;
1176 emulated_edge_mc(s, ptr, s->uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, height>>1);
1177 ptr= s->edge_emu_buffer;
1179 pix_op[dxy](dest_cb + (dest_offset >> 1), ptr, s->uvlinesize, h >> 1);
1181 ptr = ref_picture[2] + offset;
1183 emulated_edge_mc(s, ptr, s->uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, height>>1);
1184 ptr= s->edge_emu_buffer;
1186 pix_op[dxy](dest_cr + (dest_offset >> 1), ptr, s->uvlinesize, h >> 1);
1190 static inline void MPV_motion(MpegEncContext *s,
1191 UINT8 *dest_y, UINT8 *dest_cb, UINT8 *dest_cr,
1192 int dir, UINT8 **ref_picture,
1193 op_pixels_func *pix_op, qpel_mc_func *qpix_op)
1195 int dxy, offset, mx, my, src_x, src_y, motion_x, motion_y;
1203 switch(s->mv_type) {
1207 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
1210 s->sprite_offset[0][0]>>3,
1211 s->sprite_offset[0][1]>>3,
1214 gmc1_motion(s, dest_y, dest_cb, dest_cr, 0,
1218 }else if(s->quarter_sample && dir==0){ //FIXME
1219 qpel_motion(s, dest_y, dest_cb, dest_cr, 0,
1222 s->mv[dir][0][0], s->mv[dir][0][1], 16);
1224 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
1227 s->mv[dir][0][0], s->mv[dir][0][1], 16);
1232 motion_x = s->mv[dir][i][0];
1233 motion_y = s->mv[dir][i][1];
1235 dxy = ((motion_y & 1) << 1) | (motion_x & 1);
1236 src_x = mb_x * 16 + (motion_x >> 1) + (i & 1) * 8;
1237 src_y = mb_y * 16 + (motion_y >> 1) + (i >>1) * 8;
1239 /* WARNING: do no forget half pels */
1240 src_x = clip(src_x, -16, s->width);
1241 if (src_x == s->width)
1243 src_y = clip(src_y, -16, s->height);
1244 if (src_y == s->height)
1247 ptr = ref_picture[0] + (src_y * s->linesize) + (src_x);
1248 if(s->flags&CODEC_FLAG_EMU_EDGE){
1249 if(src_x<0 || src_y<0 || src_x + (motion_x&1) + 8 > s->width
1250 || src_y + (motion_y&1) + 8 > s->height){
1251 emulated_edge_mc(s, ptr, s->linesize, 9, 9, src_x, src_y, s->width, s->height);
1252 ptr= s->edge_emu_buffer;
1255 dest = dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize;
1256 pix_op[dxy](dest, ptr, s->linesize, 8);
1259 if(s->flags&CODEC_FLAG_GRAY) break;
1260 /* In case of 8X8, we construct a single chroma motion vector
1261 with a special rounding */
1265 mx += s->mv[dir][i][0];
1266 my += s->mv[dir][i][1];
1269 mx = (h263_chroma_roundtab[mx & 0xf] + ((mx >> 3) & ~1));
1272 mx = -(h263_chroma_roundtab[mx & 0xf] + ((mx >> 3) & ~1));
1275 my = (h263_chroma_roundtab[my & 0xf] + ((my >> 3) & ~1));
1278 my = -(h263_chroma_roundtab[my & 0xf] + ((my >> 3) & ~1));
1280 dxy = ((my & 1) << 1) | (mx & 1);
1284 src_x = mb_x * 8 + mx;
1285 src_y = mb_y * 8 + my;
1286 src_x = clip(src_x, -8, s->width/2);
1287 if (src_x == s->width/2)
1289 src_y = clip(src_y, -8, s->height/2);
1290 if (src_y == s->height/2)
1293 offset = (src_y * (s->uvlinesize)) + src_x;
1294 ptr = ref_picture[1] + offset;
1295 if(s->flags&CODEC_FLAG_EMU_EDGE){
1296 if(src_x<0 || src_y<0 || src_x + (dxy &1) + 8 > s->width >>1
1297 || src_y + (dxy>>1) + 8 > s->height>>1){
1298 emulated_edge_mc(s, ptr, s->uvlinesize, 9, 9, src_x, src_y, s->width>>1, s->height>>1);
1299 ptr= s->edge_emu_buffer;
1303 pix_op[dxy](dest_cb, ptr, s->uvlinesize, 8);
1305 ptr = ref_picture[2] + offset;
1307 emulated_edge_mc(s, ptr, s->uvlinesize, 9, 9, src_x, src_y, s->width>>1, s->height>>1);
1308 ptr= s->edge_emu_buffer;
1310 pix_op[dxy](dest_cr, ptr, s->uvlinesize, 8);
1313 if (s->picture_structure == PICT_FRAME) {
1315 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
1316 ref_picture, s->field_select[dir][0] ? s->linesize : 0,
1318 s->mv[dir][0][0], s->mv[dir][0][1], 8);
1320 mpeg_motion(s, dest_y, dest_cb, dest_cr, s->linesize,
1321 ref_picture, s->field_select[dir][1] ? s->linesize : 0,
1323 s->mv[dir][1][0], s->mv[dir][1][1], 8);
1333 /* put block[] to dest[] */
1334 static inline void put_dct(MpegEncContext *s,
1335 DCTELEM *block, int i, UINT8 *dest, int line_size)
1338 s->dct_unquantize(s, block, i, s->qscale);
1339 ff_idct_put (dest, line_size, block);
1342 /* add block[] to dest[] */
1343 static inline void add_dct(MpegEncContext *s,
1344 DCTELEM *block, int i, UINT8 *dest, int line_size)
1346 if (s->block_last_index[i] >= 0) {
1347 ff_idct_add (dest, line_size, block);
1351 static inline void add_dequant_dct(MpegEncContext *s,
1352 DCTELEM *block, int i, UINT8 *dest, int line_size)
1354 if (s->block_last_index[i] >= 0) {
1355 s->dct_unquantize(s, block, i, s->qscale);
1357 ff_idct_add (dest, line_size, block);
1362 * cleans dc, ac, coded_block for the current non intra MB
1364 void ff_clean_intra_table_entries(MpegEncContext *s)
1366 int wrap = s->block_wrap[0];
1367 int xy = s->block_index[0];
1370 s->dc_val[0][xy + 1 ] =
1371 s->dc_val[0][xy + wrap] =
1372 s->dc_val[0][xy + 1 + wrap] = 1024;
1374 memset(s->ac_val[0][xy ], 0, 32 * sizeof(INT16));
1375 memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(INT16));
1376 if (s->msmpeg4_version>=3) {
1377 s->coded_block[xy ] =
1378 s->coded_block[xy + 1 ] =
1379 s->coded_block[xy + wrap] =
1380 s->coded_block[xy + 1 + wrap] = 0;
1383 wrap = s->block_wrap[4];
1384 xy = s->mb_x + 1 + (s->mb_y + 1) * wrap;
1386 s->dc_val[2][xy] = 1024;
1388 memset(s->ac_val[1][xy], 0, 16 * sizeof(INT16));
1389 memset(s->ac_val[2][xy], 0, 16 * sizeof(INT16));
1391 s->mbintra_table[s->mb_x + s->mb_y*s->mb_width]= 0;
1394 /* generic function called after a macroblock has been parsed by the
1395 decoder or after it has been encoded by the encoder.
1397 Important variables used:
1398 s->mb_intra : true if intra macroblock
1399 s->mv_dir : motion vector direction
1400 s->mv_type : motion vector type
1401 s->mv : motion vector
1402 s->interlaced_dct : true if interlaced dct used (mpeg2)
1404 void MPV_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
1407 const int mb_xy = s->mb_y * s->mb_width + s->mb_x;
1412 #ifdef FF_POSTPROCESS
1413 /* Obsolete. Exists for compatibility with mplayer only. */
1414 quant_store[mb_y][mb_x]=s->qscale;
1415 //printf("[%02d][%02d] %d\n",mb_x,mb_y,s->qscale);
1417 if(s->avctx->quant_store) s->avctx->quant_store[mb_y*s->avctx->qstride+mb_x] = s->qscale;
1420 /* update DC predictors for P macroblocks */
1422 if (s->h263_pred || s->h263_aic) {
1423 if(s->mbintra_table[mb_xy])
1424 ff_clean_intra_table_entries(s);
1428 s->last_dc[2] = 128 << s->intra_dc_precision;
1431 else if (s->h263_pred || s->h263_aic)
1432 s->mbintra_table[mb_xy]=1;
1434 /* update motion predictor, not for B-frames as they need the motion_val from the last P/S-Frame */
1435 if (s->out_format == FMT_H263 && s->pict_type!=B_TYPE) { //FIXME move into h263.c if possible, format specific stuff shouldnt be here
1436 int motion_x, motion_y;
1438 const int wrap = s->block_wrap[0];
1439 const int xy = s->block_index[0];
1444 } else if (s->mv_type == MV_TYPE_16X16) {
1445 motion_x = s->mv[0][0][0];
1446 motion_y = s->mv[0][0][1];
1448 /* no update if 8X8 because it has been done during parsing */
1449 s->motion_val[xy][0] = motion_x;
1450 s->motion_val[xy][1] = motion_y;
1451 s->motion_val[xy + 1][0] = motion_x;
1452 s->motion_val[xy + 1][1] = motion_y;
1453 s->motion_val[xy + wrap][0] = motion_x;
1454 s->motion_val[xy + wrap][1] = motion_y;
1455 s->motion_val[xy + 1 + wrap][0] = motion_x;
1456 s->motion_val[xy + 1 + wrap][1] = motion_y;
1460 if (!(s->encoding && (s->intra_only || s->pict_type==B_TYPE))) {
1461 UINT8 *dest_y, *dest_cb, *dest_cr;
1462 int dct_linesize, dct_offset;
1463 op_pixels_func *op_pix;
1464 qpel_mc_func *op_qpix;
1466 /* avoid copy if macroblock skipped in last frame too
1467 dont touch it for B-frames as they need the skip info from the next p-frame */
1468 if (s->pict_type != B_TYPE) {
1469 UINT8 *mbskip_ptr = &s->mbskip_table[mb_xy];
1473 (*mbskip_ptr) ++; /* indicate that this time we skiped it */
1474 if(*mbskip_ptr >99) *mbskip_ptr= 99;
1476 /* if previous was skipped too, then nothing to do !
1477 skip only during decoding as we might trash the buffers during encoding a bit */
1478 if (*mbskip_ptr >= s->ip_buffer_count && !s->encoding)
1481 *mbskip_ptr = 0; /* not skipped */
1485 dest_y = s->current_picture [0] + (mb_y * 16* s->linesize ) + mb_x * 16;
1486 dest_cb = s->current_picture[1] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
1487 dest_cr = s->current_picture[2] + (mb_y * 8 * s->uvlinesize) + mb_x * 8;
1489 if (s->interlaced_dct) {
1490 dct_linesize = s->linesize * 2;
1491 dct_offset = s->linesize;
1493 dct_linesize = s->linesize;
1494 dct_offset = s->linesize * 8;
1498 /* motion handling */
1499 /* decoding or more than one mb_type (MC was allready done otherwise) */
1500 if((!s->encoding) || (s->mb_type[mb_xy]&(s->mb_type[mb_xy]-1))){
1501 if ((!s->no_rounding) || s->pict_type==B_TYPE){
1502 op_pix = put_pixels_tab;
1503 op_qpix= qpel_mc_rnd_tab;
1505 op_pix = put_no_rnd_pixels_tab;
1506 op_qpix= qpel_mc_no_rnd_tab;
1509 if (s->mv_dir & MV_DIR_FORWARD) {
1510 MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture, op_pix, op_qpix);
1511 if ((!s->no_rounding) || s->pict_type==B_TYPE)
1512 op_pix = avg_pixels_tab;
1514 op_pix = avg_no_rnd_pixels_tab;
1516 if (s->mv_dir & MV_DIR_BACKWARD) {
1517 MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture, op_pix, op_qpix);
1521 /* skip dequant / idct if we are really late ;) */
1522 if(s->hurry_up>1) goto the_end;
1524 /* add dct residue */
1525 if(s->encoding || !(s->mpeg2 || s->h263_msmpeg4 || s->codec_id==CODEC_ID_MPEG4)){
1526 add_dequant_dct(s, block[0], 0, dest_y, dct_linesize);
1527 add_dequant_dct(s, block[1], 1, dest_y + 8, dct_linesize);
1528 add_dequant_dct(s, block[2], 2, dest_y + dct_offset, dct_linesize);
1529 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
1531 if(!(s->flags&CODEC_FLAG_GRAY)){
1532 add_dequant_dct(s, block[4], 4, dest_cb, s->uvlinesize);
1533 add_dequant_dct(s, block[5], 5, dest_cr, s->uvlinesize);
1536 add_dct(s, block[0], 0, dest_y, dct_linesize);
1537 add_dct(s, block[1], 1, dest_y + 8, dct_linesize);
1538 add_dct(s, block[2], 2, dest_y + dct_offset, dct_linesize);
1539 add_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
1541 if(!(s->flags&CODEC_FLAG_GRAY)){
1542 add_dct(s, block[4], 4, dest_cb, s->uvlinesize);
1543 add_dct(s, block[5], 5, dest_cr, s->uvlinesize);
1547 /* dct only in intra block */
1548 put_dct(s, block[0], 0, dest_y, dct_linesize);
1549 put_dct(s, block[1], 1, dest_y + 8, dct_linesize);
1550 put_dct(s, block[2], 2, dest_y + dct_offset, dct_linesize);
1551 put_dct(s, block[3], 3, dest_y + dct_offset + 8, dct_linesize);
1553 if(!(s->flags&CODEC_FLAG_GRAY)){
1554 put_dct(s, block[4], 4, dest_cb, s->uvlinesize);
1555 put_dct(s, block[5], 5, dest_cr, s->uvlinesize);
1560 emms_c(); //FIXME remove
1563 static inline void dct_single_coeff_elimination(MpegEncContext *s, int n, int threshold, int skip_dc)
1565 static const char tab[64]=
1577 DCTELEM *block= s->block[n];
1578 const int last_index= s->block_last_index[n];
1580 if(skip_dc) skip_dc=1;
1582 /* are all which we could set to zero are allready zero? */
1583 if(last_index<=skip_dc - 1) return;
1585 for(i=0; i<=last_index; i++){
1586 const int j = zigzag_direct[i];
1587 const int level = ABS(block[j]);
1589 if(skip_dc && i==0) continue;
1598 if(score >= threshold) return;
1599 for(i=skip_dc; i<=last_index; i++){
1600 const int j = zigzag_direct[i];
1603 if(block[0]) s->block_last_index[n]= 0;
1604 else s->block_last_index[n]= -1;
1607 static inline void clip_coeffs(MpegEncContext *s, DCTELEM *block, int last_index)
1610 const int maxlevel= s->max_qcoeff;
1611 const int minlevel= s->min_qcoeff;
1613 for(i=0;i<=last_index; i++){
1614 const int j = zigzag_direct[i];
1615 int level = block[j];
1617 if (level>maxlevel) level=maxlevel;
1618 else if(level<minlevel) level=minlevel;
1623 static void encode_mb(MpegEncContext *s, int motion_x, int motion_y)
1625 const int mb_x= s->mb_x;
1626 const int mb_y= s->mb_y;
1630 if (s->interlaced_dct) {
1631 dct_linesize = s->linesize * 2;
1632 dct_offset = s->linesize;
1634 dct_linesize = s->linesize;
1635 dct_offset = s->linesize * 8;
1638 for(i=0; i<6; i++) skip_dct[i]=0;
1646 ptr = s->new_picture[0] + (mb_y * 16 * wrap) + mb_x * 16;
1647 if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
1648 emulated_edge_mc(s, ptr, wrap, 16, 16, mb_x*16, mb_y*16, s->width, s->height);
1649 ptr= s->edge_emu_buffer;
1652 get_pixels(s->block[0], ptr , wrap);
1653 get_pixels(s->block[1], ptr + 8, wrap);
1654 get_pixels(s->block[2], ptr + 8 * wrap , wrap);
1655 get_pixels(s->block[3], ptr + 8 * wrap + 8, wrap);
1657 if(s->flags&CODEC_FLAG_GRAY){
1662 ptr = s->new_picture[1] + (mb_y * 8 * wrap) + mb_x * 8;
1664 emulated_edge_mc(s, ptr, wrap, 8, 8, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
1665 ptr= s->edge_emu_buffer;
1667 get_pixels(s->block[4], ptr, wrap);
1669 ptr = s->new_picture[2] + (mb_y * 8 * wrap) + mb_x * 8;
1671 emulated_edge_mc(s, ptr, wrap, 8, 8, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
1672 ptr= s->edge_emu_buffer;
1674 get_pixels(s->block[5], ptr, wrap);
1677 op_pixels_func *op_pix;
1678 qpel_mc_func *op_qpix;
1679 UINT8 *dest_y, *dest_cb, *dest_cr;
1680 UINT8 *ptr_y, *ptr_cb, *ptr_cr;
1684 dest_y = s->current_picture[0] + (mb_y * 16 * s->linesize ) + mb_x * 16;
1685 dest_cb = s->current_picture[1] + (mb_y * 8 * (s->uvlinesize)) + mb_x * 8;
1686 dest_cr = s->current_picture[2] + (mb_y * 8 * (s->uvlinesize)) + mb_x * 8;
1687 wrap_y = s->linesize;
1689 ptr_y = s->new_picture[0] + (mb_y * 16 * wrap_y) + mb_x * 16;
1690 ptr_cb = s->new_picture[1] + (mb_y * 8 * wrap_c) + mb_x * 8;
1691 ptr_cr = s->new_picture[2] + (mb_y * 8 * wrap_c) + mb_x * 8;
1693 if ((!s->no_rounding) || s->pict_type==B_TYPE){
1694 op_pix = put_pixels_tab;
1695 op_qpix= qpel_mc_rnd_tab;
1697 op_pix = put_no_rnd_pixels_tab;
1698 op_qpix= qpel_mc_no_rnd_tab;
1701 if (s->mv_dir & MV_DIR_FORWARD) {
1702 MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture, op_pix, op_qpix);
1703 if ((!s->no_rounding) || s->pict_type==B_TYPE)
1704 op_pix = avg_pixels_tab;
1706 op_pix = avg_no_rnd_pixels_tab;
1708 if (s->mv_dir & MV_DIR_BACKWARD) {
1709 MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture, op_pix, op_qpix);
1712 if(mb_x*16+16 > s->width || mb_y*16+16 > s->height){
1713 emulated_edge_mc(s, ptr_y, wrap_y, 16, 16, mb_x*16, mb_y*16, s->width, s->height);
1714 ptr_y= s->edge_emu_buffer;
1717 diff_pixels(s->block[0], ptr_y , dest_y , wrap_y);
1718 diff_pixels(s->block[1], ptr_y + 8, dest_y + 8, wrap_y);
1719 diff_pixels(s->block[2], ptr_y + 8 * wrap_y , dest_y + 8 * wrap_y , wrap_y);
1720 diff_pixels(s->block[3], ptr_y + 8 * wrap_y + 8, dest_y + 8 * wrap_y + 8, wrap_y);
1722 if(s->flags&CODEC_FLAG_GRAY){
1727 emulated_edge_mc(s, ptr_cb, wrap_c, 8, 8, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
1728 ptr_cb= s->edge_emu_buffer;
1730 diff_pixels(s->block[4], ptr_cb, dest_cb, wrap_c);
1732 emulated_edge_mc(s, ptr_cr, wrap_c, 8, 8, mb_x*8, mb_y*8, s->width>>1, s->height>>1);
1733 ptr_cr= s->edge_emu_buffer;
1735 diff_pixels(s->block[5], ptr_cr, dest_cr, wrap_c);
1738 /* pre quantization */
1739 if(s->mc_mb_var[s->mb_width*mb_y+ mb_x]<2*s->qscale*s->qscale){
1740 if(pix_abs8x8(ptr_y , dest_y , wrap_y) < 20*s->qscale) skip_dct[0]= 1;
1741 if(pix_abs8x8(ptr_y + 8, dest_y + 8, wrap_y) < 20*s->qscale) skip_dct[1]= 1;
1742 if(pix_abs8x8(ptr_y + 8*wrap_y , dest_y + 8*wrap_y , wrap_y) < 20*s->qscale) skip_dct[2]= 1;
1743 if(pix_abs8x8(ptr_y + 8*wrap_y + 8, dest_y + 8*wrap_y + 8, wrap_y) < 20*s->qscale) skip_dct[3]= 1;
1744 if(pix_abs8x8(ptr_cb , dest_cb , wrap_y) < 20*s->qscale) skip_dct[4]= 1;
1745 if(pix_abs8x8(ptr_cr , dest_cr , wrap_y) < 20*s->qscale) skip_dct[5]= 1;
1751 if(skip_dct[i]) num++;
1754 if(s->mb_x==0 && s->mb_y==0){
1756 printf("%6d %1d\n", stat[i], i);
1769 adap_parm = ((s->avg_mb_var << 1) + s->mb_var[s->mb_width*mb_y+mb_x] + 1.0) /
1770 ((s->mb_var[s->mb_width*mb_y+mb_x] << 1) + s->avg_mb_var + 1.0);
1772 printf("\ntype=%c qscale=%2d adap=%0.2f dquant=%4.2f var=%4d avgvar=%4d",
1773 (s->mb_type[s->mb_width*mb_y+mb_x] > 0) ? 'I' : 'P',
1774 s->qscale, adap_parm, s->qscale*adap_parm,
1775 s->mb_var[s->mb_width*mb_y+mb_x], s->avg_mb_var);
1778 /* DCT & quantize */
1779 if(s->out_format==FMT_MJPEG){
1782 s->block_last_index[i] = dct_quantize(s, s->block[i], i, 8, &overflow);
1783 if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1789 s->block_last_index[i] = dct_quantize(s, s->block[i], i, s->qscale, &overflow);
1790 // FIXME we could decide to change to quantizer instead of clipping
1791 // JS: I don't think that would be a good idea it could lower quality instead
1792 // of improve it. Just INTRADC clipping deserves changes in quantizer
1793 if (overflow) clip_coeffs(s, s->block[i], s->block_last_index[i]);
1795 s->block_last_index[i]= -1;
1797 if(s->luma_elim_threshold && !s->mb_intra)
1799 dct_single_coeff_elimination(s, i, s->luma_elim_threshold, 0);
1800 if(s->chroma_elim_threshold && !s->mb_intra)
1802 dct_single_coeff_elimination(s, i, s->chroma_elim_threshold, 1);
1805 if((s->flags&CODEC_FLAG_GRAY) && s->mb_intra){
1806 s->block_last_index[4]=
1807 s->block_last_index[5]= 0;
1809 s->block[5][0]= 128;
1812 /* huffman encode */
1813 switch(s->out_format) {
1815 mpeg1_encode_mb(s, s->block, motion_x, motion_y);
1818 if (s->h263_msmpeg4)
1819 msmpeg4_encode_mb(s, s->block, motion_x, motion_y);
1820 else if(s->h263_pred)
1821 mpeg4_encode_mb(s, s->block, motion_x, motion_y);
1823 h263_encode_mb(s, s->block, motion_x, motion_y);
1826 mjpeg_encode_mb(s, s->block);
1831 void ff_copy_bits(PutBitContext *pb, UINT8 *src, int length)
1833 int bytes= length>>4;
1834 int bits= length&15;
1837 if(length==0) return;
1839 for(i=0; i<bytes; i++) put_bits(pb, 16, be2me_16(((uint16_t*)src)[i]));
1840 put_bits(pb, bits, be2me_16(((uint16_t*)src)[i])>>(16-bits));
1843 static inline void copy_context_before_encode(MpegEncContext *d, MpegEncContext *s, int type){
1846 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1849 d->mb_incr= s->mb_incr;
1851 d->last_dc[i]= s->last_dc[i];
1854 d->mv_bits= s->mv_bits;
1855 d->i_tex_bits= s->i_tex_bits;
1856 d->p_tex_bits= s->p_tex_bits;
1857 d->i_count= s->i_count;
1858 d->p_count= s->p_count;
1859 d->skip_count= s->skip_count;
1860 d->misc_bits= s->misc_bits;
1863 d->mb_skiped= s->mb_skiped;
1866 static inline void copy_context_after_encode(MpegEncContext *d, MpegEncContext *s, int type){
1869 memcpy(d->mv, s->mv, 2*4*2*sizeof(int));
1870 memcpy(d->last_mv, s->last_mv, 2*2*2*sizeof(int)); //FIXME is memcpy faster then a loop?
1873 d->mb_incr= s->mb_incr;
1875 d->last_dc[i]= s->last_dc[i];
1878 d->mv_bits= s->mv_bits;
1879 d->i_tex_bits= s->i_tex_bits;
1880 d->p_tex_bits= s->p_tex_bits;
1881 d->i_count= s->i_count;
1882 d->p_count= s->p_count;
1883 d->skip_count= s->skip_count;
1884 d->misc_bits= s->misc_bits;
1886 d->mb_intra= s->mb_intra;
1887 d->mb_skiped= s->mb_skiped;
1888 d->mv_type= s->mv_type;
1889 d->mv_dir= s->mv_dir;
1891 if(s->data_partitioning){
1893 d->tex_pb= s->tex_pb;
1897 d->block_last_index[i]= s->block_last_index[i];
1900 static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegEncContext *best, int type,
1901 PutBitContext pb[2], PutBitContext pb2[2], PutBitContext tex_pb[2],
1902 int *dmin, int *next_block, int motion_x, int motion_y)
1906 copy_context_before_encode(s, backup, type);
1908 s->block= s->blocks[*next_block];
1909 s->pb= pb[*next_block];
1910 if(s->data_partitioning){
1911 s->pb2 = pb2 [*next_block];
1912 s->tex_pb= tex_pb[*next_block];
1915 encode_mb(s, motion_x, motion_y);
1917 bits_count= get_bit_count(&s->pb);
1918 if(s->data_partitioning){
1919 bits_count+= get_bit_count(&s->pb2);
1920 bits_count+= get_bit_count(&s->tex_pb);
1923 if(bits_count<*dmin){
1927 copy_context_after_encode(best, s, type);
1931 static void encode_picture(MpegEncContext *s, int picture_number)
1933 int mb_x, mb_y, last_gob, pdif = 0;
1936 MpegEncContext best_s, backup_s;
1937 UINT8 bit_buf[2][3000];
1938 UINT8 bit_buf2[2][3000];
1939 UINT8 bit_buf_tex[2][3000];
1940 PutBitContext pb[2], pb2[2], tex_pb[2];
1943 init_put_bits(&pb [i], bit_buf [i], 3000, NULL, NULL);
1944 init_put_bits(&pb2 [i], bit_buf2 [i], 3000, NULL, NULL);
1945 init_put_bits(&tex_pb[i], bit_buf_tex[i], 3000, NULL, NULL);
1948 s->picture_number = picture_number;
1953 s->block_wrap[3]= s->mb_width*2 + 2;
1955 s->block_wrap[5]= s->mb_width + 2;
1957 /* Reset the average MB variance */
1959 s->mc_mb_var_sum = 0;
1961 /* we need to initialize some time vars before we can encode b-frames */
1962 if (s->h263_pred && !s->h263_msmpeg4)
1963 ff_set_mpeg4_time(s, s->picture_number);
1965 /* Estimate motion for every MB */
1966 if(s->pict_type != I_TYPE){
1967 for(mb_y=0; mb_y < s->mb_height; mb_y++) {
1968 s->block_index[0]= s->block_wrap[0]*(mb_y*2 + 1) - 1;
1969 s->block_index[1]= s->block_wrap[0]*(mb_y*2 + 1);
1970 s->block_index[2]= s->block_wrap[0]*(mb_y*2 + 2) - 1;
1971 s->block_index[3]= s->block_wrap[0]*(mb_y*2 + 2);
1972 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
1975 s->block_index[0]+=2;
1976 s->block_index[1]+=2;
1977 s->block_index[2]+=2;
1978 s->block_index[3]+=2;
1980 /* compute motion vector & mb_type and store in context */
1981 if(s->pict_type==B_TYPE)
1982 ff_estimate_b_frame_motion(s, mb_x, mb_y);
1984 ff_estimate_p_frame_motion(s, mb_x, mb_y);
1985 // s->mb_type[mb_y*s->mb_width + mb_x]=MB_TYPE_INTER;
1989 }else /* if(s->pict_type == I_TYPE) */{
1991 //FIXME do we need to zero them?
1992 memset(s->motion_val[0], 0, sizeof(INT16)*(s->mb_width*2 + 2)*(s->mb_height*2 + 2)*2);
1993 memset(s->p_mv_table , 0, sizeof(INT16)*(s->mb_width+2)*(s->mb_height+2)*2);
1994 memset(s->mb_type , MB_TYPE_INTRA, sizeof(UINT8)*s->mb_width*s->mb_height);
1997 if(s->mb_var_sum < s->mc_mb_var_sum && s->pict_type == P_TYPE){ //FIXME subtract MV bits
1998 s->pict_type= I_TYPE;
1999 memset(s->mb_type , MB_TYPE_INTRA, sizeof(UINT8)*s->mb_width*s->mb_height);
2000 if(s->max_b_frames==0){
2001 s->input_pict_type= I_TYPE;
2002 s->input_picture_in_gop_number=0;
2004 //printf("Scene change detected, encoding as I Frame\n");
2007 if(s->pict_type==P_TYPE || s->pict_type==S_TYPE)
2008 s->f_code= ff_get_best_fcode(s, s->p_mv_table, MB_TYPE_INTER);
2009 ff_fix_long_p_mvs(s);
2010 if(s->pict_type==B_TYPE){
2011 s->f_code= ff_get_best_fcode(s, s->b_forw_mv_table, MB_TYPE_FORWARD);
2012 s->b_code= ff_get_best_fcode(s, s->b_back_mv_table, MB_TYPE_BACKWARD);
2014 ff_fix_long_b_mvs(s, s->b_forw_mv_table, s->f_code, MB_TYPE_FORWARD);
2015 ff_fix_long_b_mvs(s, s->b_back_mv_table, s->b_code, MB_TYPE_BACKWARD);
2016 ff_fix_long_b_mvs(s, s->b_bidir_forw_mv_table, s->f_code, MB_TYPE_BIDIR);
2017 ff_fix_long_b_mvs(s, s->b_bidir_back_mv_table, s->b_code, MB_TYPE_BIDIR);
2020 //printf("f_code %d ///\n", s->f_code);
2022 // printf("%d %d\n", s->avg_mb_var, s->mc_mb_var);
2024 if(s->flags&CODEC_FLAG_PASS2)
2025 s->qscale = ff_rate_estimate_qscale_pass2(s);
2026 else if (!s->fixed_qscale)
2027 s->qscale = ff_rate_estimate_qscale(s);
2029 if (s->out_format == FMT_MJPEG) {
2030 /* for mjpeg, we do include qscale in the matrix */
2031 s->intra_matrix[0] = ff_mpeg1_default_intra_matrix[0];
2033 s->intra_matrix[i] = CLAMP_TO_8BIT((ff_mpeg1_default_intra_matrix[i] * s->qscale) >> 3);
2034 convert_matrix(s->q_intra_matrix, s->q_intra_matrix16,
2035 s->q_intra_matrix16_bias, s->intra_matrix, s->intra_quant_bias);
2038 s->last_bits= get_bit_count(&s->pb);
2039 switch(s->out_format) {
2041 mjpeg_picture_header(s);
2044 if (s->h263_msmpeg4)
2045 msmpeg4_encode_picture_header(s, picture_number);
2046 else if (s->h263_pred)
2047 mpeg4_encode_picture_header(s, picture_number);
2048 else if (s->h263_rv10)
2049 rv10_encode_picture_header(s, picture_number);
2051 h263_encode_picture_header(s, picture_number);
2054 mpeg1_encode_picture_header(s, picture_number);
2057 bits= get_bit_count(&s->pb);
2058 s->header_bits= bits - s->last_bits;
2068 /* init last dc values */
2069 /* note: quant matrix value (8) is implied here */
2070 s->last_dc[0] = 128;
2071 s->last_dc[1] = 128;
2072 s->last_dc[2] = 128;
2074 s->last_mv[0][0][0] = 0;
2075 s->last_mv[0][0][1] = 0;
2077 /* Get the GOB height based on picture height */
2078 if (s->out_format == FMT_H263 && !s->h263_pred && !s->h263_msmpeg4) {
2079 if (s->height <= 400)
2081 else if (s->height <= 800)
2085 }else if(s->codec_id==CODEC_ID_MPEG4){
2089 if(s->codec_id==CODEC_ID_MPEG4 && s->data_partitioning && s->pict_type!=B_TYPE)
2090 ff_mpeg4_init_partitions(s);
2094 for(mb_y=0; mb_y < s->mb_height; mb_y++) {
2095 /* Put GOB header based on RTP MTU for formats which support it per line (H263*)*/
2096 /* TODO: Put all this stuff in a separate generic function */
2099 s->ptr_lastgob = s->pb.buf;
2100 s->ptr_last_mb_line = s->pb.buf;
2101 } else if (s->out_format == FMT_H263 && !s->h263_pred && !s->h263_msmpeg4 && !(mb_y % s->gob_index)) {
2102 // MN: we could move the space check from h263 -> here, as its not h263 specific
2103 last_gob = h263_encode_gob_header(s, mb_y);
2105 s->first_slice_line = 1;
2107 /*MN: we reset it here instead at the end of each line cuz mpeg4 can have
2108 slice lines starting & ending in the middle*/
2109 s->first_slice_line = 0;
2114 s->y_dc_scale= s->y_dc_scale_table[ s->qscale ];
2115 s->c_dc_scale= s->c_dc_scale_table[ s->qscale ];
2117 s->block_index[0]= s->block_wrap[0]*(mb_y*2 + 1) - 1;
2118 s->block_index[1]= s->block_wrap[0]*(mb_y*2 + 1);
2119 s->block_index[2]= s->block_wrap[0]*(mb_y*2 + 2) - 1;
2120 s->block_index[3]= s->block_wrap[0]*(mb_y*2 + 2);
2121 s->block_index[4]= s->block_wrap[4]*(mb_y + 1) + s->block_wrap[0]*(s->mb_height*2 + 2);
2122 s->block_index[5]= s->block_wrap[4]*(mb_y + 1 + s->mb_height + 2) + s->block_wrap[0]*(s->mb_height*2 + 2);
2123 for(mb_x=0; mb_x < s->mb_width; mb_x++) {
2124 const int mb_type= s->mb_type[mb_y * s->mb_width + mb_x];
2125 const int xy= (mb_y+1) * (s->mb_width+2) + mb_x + 1;
2131 s->block_index[0]+=2;
2132 s->block_index[1]+=2;
2133 s->block_index[2]+=2;
2134 s->block_index[3]+=2;
2135 s->block_index[4]++;
2136 s->block_index[5]++;
2138 /* write gob / video packet header for formats which support it at any MB (MPEG4) */
2139 if(s->rtp_mode && s->mb_y>0 && s->codec_id==CODEC_ID_MPEG4){
2140 int pdif= pbBufPtr(&s->pb) - s->ptr_lastgob;
2142 //the *2 is there so we stay below the requested size
2143 if(pdif + s->mb_line_avgsize/s->mb_width >= s->rtp_payload_size){
2144 if(s->codec_id==CODEC_ID_MPEG4){
2145 if(s->data_partitioning && s->pict_type!=B_TYPE){
2146 ff_mpeg4_merge_partitions(s);
2147 ff_mpeg4_init_partitions(s);
2149 ff_mpeg4_encode_video_packet_header(s);
2151 if(s->flags&CODEC_FLAG_PASS1){
2152 int bits= get_bit_count(&s->pb);
2153 s->misc_bits+= bits - s->last_bits;
2156 ff_mpeg4_clean_buffers(s);
2158 s->ptr_lastgob = pbBufPtr(&s->pb);
2159 s->first_slice_line=1;
2160 s->resync_mb_x=mb_x;
2161 s->resync_mb_y=mb_y;
2164 if( (s->resync_mb_x == s->mb_x)
2165 && s->resync_mb_y+1 == s->mb_y){
2166 s->first_slice_line=0;
2170 if(mb_type & (mb_type-1)){ // more than 1 MB type possible
2172 int pb_bits_count, pb2_bits_count, tex_pb_bits_count;
2174 copy_context_before_encode(&backup_s, s, -1);
2176 best_s.data_partitioning= s->data_partitioning;
2177 if(s->data_partitioning){
2178 backup_s.pb2= s->pb2;
2179 backup_s.tex_pb= s->tex_pb;
2182 if(mb_type&MB_TYPE_INTER){
2183 s->mv_dir = MV_DIR_FORWARD;
2184 s->mv_type = MV_TYPE_16X16;
2186 s->mv[0][0][0] = s->p_mv_table[xy][0];
2187 s->mv[0][0][1] = s->p_mv_table[xy][1];
2188 encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_INTER, pb, pb2, tex_pb,
2189 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2191 if(mb_type&MB_TYPE_INTER4V){
2192 s->mv_dir = MV_DIR_FORWARD;
2193 s->mv_type = MV_TYPE_8X8;
2196 s->mv[0][i][0] = s->motion_val[s->block_index[i]][0];
2197 s->mv[0][i][1] = s->motion_val[s->block_index[i]][1];
2199 encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_INTER4V, pb, pb2, tex_pb,
2200 &dmin, &next_block, 0, 0);
2202 if(mb_type&MB_TYPE_FORWARD){
2203 s->mv_dir = MV_DIR_FORWARD;
2204 s->mv_type = MV_TYPE_16X16;
2206 s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2207 s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2208 encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_FORWARD, pb, pb2, tex_pb,
2209 &dmin, &next_block, s->mv[0][0][0], s->mv[0][0][1]);
2211 if(mb_type&MB_TYPE_BACKWARD){
2212 s->mv_dir = MV_DIR_BACKWARD;
2213 s->mv_type = MV_TYPE_16X16;
2215 s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2216 s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2217 encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_BACKWARD, pb, pb2, tex_pb,
2218 &dmin, &next_block, s->mv[1][0][0], s->mv[1][0][1]);
2220 if(mb_type&MB_TYPE_BIDIR){
2221 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2222 s->mv_type = MV_TYPE_16X16;
2224 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2225 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2226 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2227 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2228 encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_BIDIR, pb, pb2, tex_pb,
2229 &dmin, &next_block, 0, 0);
2231 if(mb_type&MB_TYPE_DIRECT){
2232 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2233 s->mv_type = MV_TYPE_16X16; //FIXME
2235 s->mv[0][0][0] = s->b_direct_forw_mv_table[xy][0];
2236 s->mv[0][0][1] = s->b_direct_forw_mv_table[xy][1];
2237 s->mv[1][0][0] = s->b_direct_back_mv_table[xy][0];
2238 s->mv[1][0][1] = s->b_direct_back_mv_table[xy][1];
2239 encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_DIRECT, pb, pb2, tex_pb,
2240 &dmin, &next_block, s->b_direct_mv_table[xy][0], s->b_direct_mv_table[xy][1]);
2242 if(mb_type&MB_TYPE_INTRA){
2243 s->mv_dir = MV_DIR_FORWARD;
2244 s->mv_type = MV_TYPE_16X16;
2248 encode_mb_hq(s, &backup_s, &best_s, MB_TYPE_INTRA, pb, pb2, tex_pb,
2249 &dmin, &next_block, 0, 0);
2250 /* force cleaning of ac/dc pred stuff if needed ... */
2251 if(s->h263_pred || s->h263_aic)
2252 s->mbintra_table[mb_x + mb_y*s->mb_width]=1;
2254 copy_context_after_encode(s, &best_s, -1);
2256 pb_bits_count= get_bit_count(&s->pb);
2257 flush_put_bits(&s->pb);
2258 ff_copy_bits(&backup_s.pb, bit_buf[next_block^1], pb_bits_count);
2261 if(s->data_partitioning){
2262 pb2_bits_count= get_bit_count(&s->pb2);
2263 flush_put_bits(&s->pb2);
2264 ff_copy_bits(&backup_s.pb2, bit_buf2[next_block^1], pb2_bits_count);
2265 s->pb2= backup_s.pb2;
2267 tex_pb_bits_count= get_bit_count(&s->tex_pb);
2268 flush_put_bits(&s->tex_pb);
2269 ff_copy_bits(&backup_s.tex_pb, bit_buf_tex[next_block^1], tex_pb_bits_count);
2270 s->tex_pb= backup_s.tex_pb;
2272 s->last_bits= get_bit_count(&s->pb);
2274 int motion_x, motion_y;
2275 s->mv_type=MV_TYPE_16X16;
2276 // only one MB-Type possible
2279 s->mv_dir = MV_DIR_FORWARD;
2281 motion_x= s->mv[0][0][0] = 0;
2282 motion_y= s->mv[0][0][1] = 0;
2285 s->mv_dir = MV_DIR_FORWARD;
2287 motion_x= s->mv[0][0][0] = s->p_mv_table[xy][0];
2288 motion_y= s->mv[0][0][1] = s->p_mv_table[xy][1];
2290 case MB_TYPE_INTER4V:
2291 s->mv_dir = MV_DIR_FORWARD;
2292 s->mv_type = MV_TYPE_8X8;
2295 s->mv[0][i][0] = s->motion_val[s->block_index[i]][0];
2296 s->mv[0][i][1] = s->motion_val[s->block_index[i]][1];
2298 motion_x= motion_y= 0;
2300 case MB_TYPE_DIRECT:
2301 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
2303 motion_x=s->b_direct_mv_table[xy][0];
2304 motion_y=s->b_direct_mv_table[xy][1];
2305 s->mv[0][0][0] = s->b_direct_forw_mv_table[xy][0];
2306 s->mv[0][0][1] = s->b_direct_forw_mv_table[xy][1];
2307 s->mv[1][0][0] = s->b_direct_back_mv_table[xy][0];
2308 s->mv[1][0][1] = s->b_direct_back_mv_table[xy][1];
2311 s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD;
2315 s->mv[0][0][0] = s->b_bidir_forw_mv_table[xy][0];
2316 s->mv[0][0][1] = s->b_bidir_forw_mv_table[xy][1];
2317 s->mv[1][0][0] = s->b_bidir_back_mv_table[xy][0];
2318 s->mv[1][0][1] = s->b_bidir_back_mv_table[xy][1];
2320 case MB_TYPE_BACKWARD:
2321 s->mv_dir = MV_DIR_BACKWARD;
2323 motion_x= s->mv[1][0][0] = s->b_back_mv_table[xy][0];
2324 motion_y= s->mv[1][0][1] = s->b_back_mv_table[xy][1];
2326 case MB_TYPE_FORWARD:
2327 s->mv_dir = MV_DIR_FORWARD;
2329 motion_x= s->mv[0][0][0] = s->b_forw_mv_table[xy][0];
2330 motion_y= s->mv[0][0][1] = s->b_forw_mv_table[xy][1];
2331 // printf(" %d %d ", motion_x, motion_y);
2334 motion_x=motion_y=0; //gcc warning fix
2335 printf("illegal MB type\n");
2337 encode_mb(s, motion_x, motion_y);
2339 /* clean the MV table in IPS frames for direct mode in B frames */
2340 if(s->mb_intra /* && I,P,S_TYPE */){
2341 s->p_mv_table[xy][0]=0;
2342 s->p_mv_table[xy][1]=0;
2345 MPV_decode_mb(s, s->block);
2346 //printf("MB %d %d bits\n", s->mb_x+s->mb_y*s->mb_width, get_bit_count(&s->pb));
2350 /* Obtain average GOB size for RTP */
2353 s->mb_line_avgsize = pbBufPtr(&s->pb) - s->ptr_last_mb_line;
2354 else if (!(mb_y % s->gob_index)) {
2355 s->mb_line_avgsize = (s->mb_line_avgsize + pbBufPtr(&s->pb) - s->ptr_last_mb_line) >> 1;
2356 s->ptr_last_mb_line = pbBufPtr(&s->pb);
2358 //fprintf(stderr, "\nMB line: %d\tSize: %u\tAvg. Size: %u", s->mb_y,
2359 // (s->pb.buf_ptr - s->ptr_last_mb_line), s->mb_line_avgsize);
2360 if(s->codec_id!=CODEC_ID_MPEG4) s->first_slice_line = 0; //FIXME clean
2365 if(s->codec_id==CODEC_ID_MPEG4 && s->data_partitioning && s->pict_type!=B_TYPE)
2366 ff_mpeg4_merge_partitions(s);
2368 if (s->msmpeg4_version && s->msmpeg4_version<4 && s->pict_type == I_TYPE)
2369 msmpeg4_encode_ext_header(s);
2371 if(s->codec_id==CODEC_ID_MPEG4)
2372 ff_mpeg4_stuffing(&s->pb);
2374 //if (s->gob_number)
2375 // fprintf(stderr,"\nNumber of GOB: %d", s->gob_number);
2377 /* Send the last GOB if RTP */
2379 flush_put_bits(&s->pb);
2380 pdif = pbBufPtr(&s->pb) - s->ptr_lastgob;
2381 /* Call the RTP callback to send the last GOB */
2382 if (s->rtp_callback)
2383 s->rtp_callback(s->ptr_lastgob, pdif, s->gob_number);
2384 s->ptr_lastgob = pbBufPtr(&s->pb);
2385 //fprintf(stderr,"\nGOB: %2d size: %d (last)", s->gob_number, pdif);
2389 static int dct_quantize_c(MpegEncContext *s,
2390 DCTELEM *block, int n,
2391 int qscale, int *overflow)
2393 int i, j, level, last_non_zero, q;
2397 unsigned int threshold1, threshold2;
2401 /* we need this permutation so that we correct the IDCT
2402 permutation. will be moved into DCT code */
2403 block_permute(block);
2413 /* For AIC we skip quant/dequant of INTRADC */
2416 /* note: block[0] is assumed to be positive */
2417 block[0] = (block[0] + (q >> 1)) / q;
2420 qmat = s->q_intra_matrix[qscale];
2421 bias= s->intra_quant_bias<<(QMAT_SHIFT - 3 - QUANT_BIAS_SHIFT);
2425 qmat = s->q_inter_matrix[qscale];
2426 bias= s->inter_quant_bias<<(QMAT_SHIFT - 3 - QUANT_BIAS_SHIFT);
2428 threshold1= (1<<(QMAT_SHIFT - 3)) - bias - 1;
2429 threshold2= threshold1<<1;
2432 j = zigzag_direct[i];
2434 level = level * qmat[j];
2436 // if( bias+level >= (1<<(QMAT_SHIFT - 3))
2437 // || bias-level >= (1<<(QMAT_SHIFT - 3))){
2438 if(((unsigned)(level+threshold1))>threshold2){
2440 level= (bias + level)>>(QMAT_SHIFT - 3);
2443 level= (bias - level)>>(QMAT_SHIFT - 3);
2452 *overflow= s->max_qcoeff < max; //overflow might have happend
2454 return last_non_zero;
2457 static void dct_unquantize_mpeg1_c(MpegEncContext *s,
2458 DCTELEM *block, int n, int qscale)
2460 int i, level, nCoeffs;
2461 const UINT16 *quant_matrix;
2463 if(s->alternate_scan) nCoeffs= 64;
2464 else nCoeffs= s->block_last_index[n]+1;
2468 block[0] = block[0] * s->y_dc_scale;
2470 block[0] = block[0] * s->c_dc_scale;
2471 /* XXX: only mpeg1 */
2472 quant_matrix = s->intra_matrix;
2473 for(i=1;i<nCoeffs;i++) {
2474 int j= zigzag_direct[i];
2479 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2480 level = (level - 1) | 1;
2483 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2484 level = (level - 1) | 1;
2487 if (level < -2048 || level > 2047)
2488 fprintf(stderr, "unquant error %d %d\n", i, level);
2495 quant_matrix = s->inter_matrix;
2496 for(;i<nCoeffs;i++) {
2497 int j= zigzag_direct[i];
2502 level = (((level << 1) + 1) * qscale *
2503 ((int) (quant_matrix[j]))) >> 4;
2504 level = (level - 1) | 1;
2507 level = (((level << 1) + 1) * qscale *
2508 ((int) (quant_matrix[j]))) >> 4;
2509 level = (level - 1) | 1;
2512 if (level < -2048 || level > 2047)
2513 fprintf(stderr, "unquant error %d %d\n", i, level);
2521 static void dct_unquantize_mpeg2_c(MpegEncContext *s,
2522 DCTELEM *block, int n, int qscale)
2524 int i, level, nCoeffs;
2525 const UINT16 *quant_matrix;
2527 if(s->alternate_scan) nCoeffs= 64;
2528 else nCoeffs= s->block_last_index[n]+1;
2532 block[0] = block[0] * s->y_dc_scale;
2534 block[0] = block[0] * s->c_dc_scale;
2535 quant_matrix = s->intra_matrix;
2536 for(i=1;i<nCoeffs;i++) {
2537 int j= zigzag_direct[i];
2542 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2545 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2548 if (level < -2048 || level > 2047)
2549 fprintf(stderr, "unquant error %d %d\n", i, level);
2557 quant_matrix = s->inter_matrix;
2558 for(;i<nCoeffs;i++) {
2559 int j= zigzag_direct[i];
2564 level = (((level << 1) + 1) * qscale *
2565 ((int) (quant_matrix[j]))) >> 4;
2568 level = (((level << 1) + 1) * qscale *
2569 ((int) (quant_matrix[j]))) >> 4;
2572 if (level < -2048 || level > 2047)
2573 fprintf(stderr, "unquant error %d %d\n", i, level);
2584 static void dct_unquantize_h263_c(MpegEncContext *s,
2585 DCTELEM *block, int n, int qscale)
2587 int i, level, qmul, qadd;
2593 block[0] = block[0] * s->y_dc_scale;
2595 block[0] = block[0] * s->c_dc_scale;
2598 nCoeffs= 64; //does not allways use zigzag table
2601 nCoeffs= zigzag_end[ s->block_last_index[n] ];
2604 qmul = s->qscale << 1;
2605 if (s->h263_aic && s->mb_intra)
2608 qadd = (s->qscale - 1) | 1;
2610 for(;i<nCoeffs;i++) {
2614 level = level * qmul - qadd;
2616 level = level * qmul + qadd;
2619 if (level < -2048 || level > 2047)
2620 fprintf(stderr, "unquant error %d %d\n", i, level);
2627 static void remove_ac(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, int mb_x, int mb_y)
2629 int dc, dcb, dcr, y, i;
2631 dc= s->dc_val[0][mb_x*2+1 + (i&1) + (mb_y*2+1 + (i>>1))*(s->mb_width*2+2)];
2635 dest_y[x + (i&1)*8 + (y + (i>>1)*8)*s->linesize]= dc/8;
2639 dcb = s->dc_val[1][mb_x+1 + (mb_y+1)*(s->mb_width+2)];
2640 dcr= s->dc_val[2][mb_x+1 + (mb_y+1)*(s->mb_width+2)];
2644 dest_cb[x + y*(s->uvlinesize)]= dcb/8;
2645 dest_cr[x + y*(s->uvlinesize)]= dcr/8;
2651 * will conceal past errors, and allso drop b frames if needed
2654 void ff_conceal_past_errors(MpegEncContext *s, int unknown_pos)
2659 int i, intra_count=0, inter_count=0;
2660 int intra_conceal= s->msmpeg4_version ? 50 : 50; //FIXME finetune
2661 int inter_conceal= s->msmpeg4_version ? 50 : 50;
2664 if(mb_x>=s->mb_width) mb_x= s->mb_width -1;
2665 if(mb_y>=s->mb_height) mb_y= s->mb_height-1;
2667 if(s->decoding_error==0 && unknown_pos){
2668 if(s->data_partitioning && s->pict_type!=B_TYPE)
2669 s->decoding_error= DECODING_AC_LOST;
2671 s->decoding_error= DECODING_DESYNC;
2674 if(s->decoding_error==DECODING_DESYNC && s->pict_type!=B_TYPE) s->next_p_frame_damaged=1;
2676 for(i=mb_x + mb_y*s->mb_width; i>=0; i--){
2677 if(s->mbintra_table[i]) intra_count++;
2681 if(s->decoding_error==DECODING_AC_LOST){
2684 }else if(s->decoding_error==DECODING_ACDC_LOST){
2689 if(unknown_pos && (intra_count<inter_count)){
2690 intra_conceal= inter_conceal= s->mb_num;
2691 // printf("%d %d\n",intra_count, inter_count);
2694 fprintf(stderr, "concealing errors\n");
2696 /* for all MBs from the current one back until the last resync marker */
2697 for(; mb_y>=0 && mb_y>=s->resync_mb_y; mb_y--){
2698 for(; mb_x>=0; mb_x--){
2699 uint8_t *dest_y = s->current_picture[0] + (mb_y * 16* s->linesize ) + mb_x * 16;
2700 uint8_t *dest_cb = s->current_picture[1] + (mb_y * 8 * (s->uvlinesize)) + mb_x * 8;
2701 uint8_t *dest_cr = s->current_picture[2] + (mb_y * 8 * (s->uvlinesize)) + mb_x * 8;
2702 int mb_x_backup= s->mb_x; //FIXME pass xy to mpeg_motion
2703 int mb_y_backup= s->mb_y;
2706 if(s->mbintra_table[mb_y*s->mb_width + mb_x] && mb_dist<intra_conceal){
2707 if(s->decoding_error==DECODING_AC_LOST){
2708 remove_ac(s, dest_y, dest_cb, dest_cr, mb_x, mb_y);
2709 // printf("remove ac to %d %d\n", mb_x, mb_y);
2711 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
2712 s->last_picture, 0, 0, put_pixels_tab,
2713 0/*mx*/, 0/*my*/, 16);
2716 else if(!s->mbintra_table[mb_y*s->mb_width + mb_x] && mb_dist<inter_conceal){
2720 if(s->decoding_error!=DECODING_DESYNC){
2721 int xy= mb_x*2+1 + (mb_y*2+1)*(s->mb_width*2+2);
2722 mx= s->motion_val[ xy ][0];
2723 my= s->motion_val[ xy ][1];
2726 mpeg_motion(s, dest_y, dest_cb, dest_cr, 0,
2727 s->last_picture, 0, 0, put_pixels_tab,
2730 s->mb_x= mb_x_backup;
2731 s->mb_y= mb_y_backup;
2733 if(mb_x== s->resync_mb_x && mb_y== s->resync_mb_y) return;
2734 if(!s->mbskip_table[mb_x + mb_y*s->mb_width]) mb_dist++;
2740 AVCodec mpeg1video_encoder = {
2743 CODEC_ID_MPEG1VIDEO,
2744 sizeof(MpegEncContext),
2750 AVCodec h263_encoder = {
2754 sizeof(MpegEncContext),
2760 AVCodec h263p_encoder = {
2764 sizeof(MpegEncContext),
2770 AVCodec rv10_encoder = {
2774 sizeof(MpegEncContext),
2780 AVCodec mjpeg_encoder = {
2784 sizeof(MpegEncContext),
2790 AVCodec mpeg4_encoder = {
2794 sizeof(MpegEncContext),
2800 AVCodec msmpeg4v1_encoder = {
2804 sizeof(MpegEncContext),
2810 AVCodec msmpeg4v2_encoder = {
2814 sizeof(MpegEncContext),
2820 AVCodec msmpeg4v3_encoder = {
2824 sizeof(MpegEncContext),
2830 AVCodec wmv1_encoder = {
2834 sizeof(MpegEncContext),
2840 AVCodec wmv2_encoder = {
2844 sizeof(MpegEncContext),