2 * Copyright (c) 2002 The FFmpeg Project.
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
28 #include "mpegvideo.h"
30 #include "msmpeg4data.h"
31 #include "simple_idct.h"
33 #define SKIP_TYPE_NONE 0
34 #define SKIP_TYPE_MPEG 1
35 #define SKIP_TYPE_ROW 2
36 #define SKIP_TYPE_COL 3
39 typedef struct Wmv2Context{
45 int abt_type_table[6];
55 ScanTable abt_scantable[2];
56 DECLARE_ALIGNED_8(DCTELEM, abt_block2[6][64]);
59 static void wmv2_common_init(Wmv2Context * w){
60 MpegEncContext * const s= &w->s;
62 ff_init_scantable(s->dsp.idct_permutation, &w->abt_scantable[0], wmv2_scantableA);
63 ff_init_scantable(s->dsp.idct_permutation, &w->abt_scantable[1], wmv2_scantableB);
66 #ifdef CONFIG_WMV2_ENCODER
68 static int encode_ext_header(Wmv2Context *w){
69 MpegEncContext * const s= &w->s;
73 init_put_bits(&pb, s->avctx->extradata, s->avctx->extradata_size);
75 put_bits(&pb, 5, s->avctx->time_base.den / s->avctx->time_base.num); //yes 29.97 -> 29
76 put_bits(&pb, 11, FFMIN(s->bit_rate/1024, 2047));
78 put_bits(&pb, 1, w->mspel_bit=1);
79 put_bits(&pb, 1, s->loop_filter);
80 put_bits(&pb, 1, w->abt_flag=1);
81 put_bits(&pb, 1, w->j_type_bit=1);
82 put_bits(&pb, 1, w->top_left_mv_flag=0);
83 put_bits(&pb, 1, w->per_mb_rl_bit=1);
84 put_bits(&pb, 3, code=1);
88 s->slice_height = s->mb_height / code;
93 static int wmv2_encode_init(AVCodecContext *avctx){
94 Wmv2Context * const w= avctx->priv_data;
96 if(MPV_encode_init(avctx) < 0)
101 avctx->extradata_size= 4;
102 avctx->extradata= av_mallocz(avctx->extradata_size + 10);
103 encode_ext_header(w);
108 #if 0 /* unused, remove? */
109 static int wmv2_encode_end(AVCodecContext *avctx){
111 if(MPV_encode_end(avctx) < 0)
114 avctx->extradata_size= 0;
115 av_freep(&avctx->extradata);
121 int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number)
123 Wmv2Context * const w= (Wmv2Context*)s;
125 put_bits(&s->pb, 1, s->pict_type - 1);
126 if(s->pict_type == I_TYPE){
127 put_bits(&s->pb, 7, 0);
129 put_bits(&s->pb, 5, s->qscale);
131 s->dc_table_index = 1;
132 s->mv_table_index = 1; /* only if P frame */
133 // s->use_skip_mb_code = 1; /* only if P frame */
134 s->per_mb_rl_table = 0;
140 assert(s->flipflop_rounding);
142 if (s->pict_type == I_TYPE) {
143 assert(s->no_rounding==1);
144 if(w->j_type_bit) put_bits(&s->pb, 1, w->j_type);
146 if(w->per_mb_rl_bit) put_bits(&s->pb, 1, s->per_mb_rl_table);
148 if(!s->per_mb_rl_table){
149 ff_msmpeg4_code012(&s->pb, s->rl_chroma_table_index);
150 ff_msmpeg4_code012(&s->pb, s->rl_table_index);
153 put_bits(&s->pb, 1, s->dc_table_index);
155 s->inter_intra_pred= 0;
159 put_bits(&s->pb, 2, SKIP_TYPE_NONE);
161 ff_msmpeg4_code012(&s->pb, cbp_index=0);
164 w->cbp_table_index= map[cbp_index];
165 }else if(s->qscale <= 20){
167 w->cbp_table_index= map[cbp_index];
170 w->cbp_table_index= map[cbp_index];
173 if(w->mspel_bit) put_bits(&s->pb, 1, s->mspel);
176 put_bits(&s->pb, 1, w->per_mb_abt^1);
178 ff_msmpeg4_code012(&s->pb, w->abt_type);
182 if(w->per_mb_rl_bit) put_bits(&s->pb, 1, s->per_mb_rl_table);
184 if(!s->per_mb_rl_table){
185 ff_msmpeg4_code012(&s->pb, s->rl_table_index);
186 s->rl_chroma_table_index = s->rl_table_index;
188 put_bits(&s->pb, 1, s->dc_table_index);
189 put_bits(&s->pb, 1, s->mv_table_index);
191 s->inter_intra_pred= 0;//(s->width*s->height < 320*240 && s->bit_rate<=II_BITRATE);
193 s->esc3_level_length= 0;
194 s->esc3_run_length= 0;
199 /* Nearly identical to wmv1 but that is just because we do not use the
200 * useless M$ crap features. It is duplicated here in case someone wants
201 * to add support for these crap features. */
202 void ff_wmv2_encode_mb(MpegEncContext * s,
203 DCTELEM block[6][64],
204 int motion_x, int motion_y)
206 Wmv2Context * const w= (Wmv2Context*)s;
207 int cbp, coded_cbp, i;
209 uint8_t *coded_block;
211 ff_msmpeg4_handle_slices(s);
216 for (i = 0; i < 6; i++) {
217 if (s->block_last_index[i] >= 0)
222 wmv2_inter_table[w->cbp_table_index][cbp + 64][1],
223 wmv2_inter_table[w->cbp_table_index][cbp + 64][0]);
226 h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
227 ff_msmpeg4_encode_motion(s, motion_x - pred_x,
233 for (i = 0; i < 6; i++) {
235 val = (s->block_last_index[i] >= 1);
236 cbp |= val << (5 - i);
238 /* predict value for close blocks only for luma */
239 pred = ff_msmpeg4_coded_block_pred(s, i, &coded_block);
243 coded_cbp |= val << (5 - i);
247 printf("cbp=%x %x\n", cbp, coded_cbp);
250 if (s->pict_type == I_TYPE) {
252 ff_msmp4_mb_i_table[coded_cbp][1], ff_msmp4_mb_i_table[coded_cbp][0]);
255 wmv2_inter_table[w->cbp_table_index][cbp][1],
256 wmv2_inter_table[w->cbp_table_index][cbp][0]);
258 put_bits(&s->pb, 1, 0); /* no AC prediction yet */
259 if(s->inter_intra_pred){
261 put_bits(&s->pb, table_inter_intra[s->h263_aic_dir][1], table_inter_intra[s->h263_aic_dir][0]);
265 for (i = 0; i < 6; i++) {
266 ff_msmpeg4_encode_block(s, block[i], i);
269 #endif //CONFIG_WMV2_ENCODER
271 static void parse_mb_skip(Wmv2Context * w){
273 MpegEncContext * const s= &w->s;
274 uint32_t * const mb_type= s->current_picture_ptr->mb_type;
276 w->skip_type= get_bits(&s->gb, 2);
277 switch(w->skip_type){
279 for(mb_y=0; mb_y<s->mb_height; mb_y++){
280 for(mb_x=0; mb_x<s->mb_width; mb_x++){
281 mb_type[mb_y*s->mb_stride + mb_x]= MB_TYPE_16x16 | MB_TYPE_L0;
286 for(mb_y=0; mb_y<s->mb_height; mb_y++){
287 for(mb_x=0; mb_x<s->mb_width; mb_x++){
288 mb_type[mb_y*s->mb_stride + mb_x]= (get_bits1(&s->gb) ? MB_TYPE_SKIP : 0) | MB_TYPE_16x16 | MB_TYPE_L0;
293 for(mb_y=0; mb_y<s->mb_height; mb_y++){
294 if(get_bits1(&s->gb)){
295 for(mb_x=0; mb_x<s->mb_width; mb_x++){
296 mb_type[mb_y*s->mb_stride + mb_x]= MB_TYPE_SKIP | MB_TYPE_16x16 | MB_TYPE_L0;
299 for(mb_x=0; mb_x<s->mb_width; mb_x++){
300 mb_type[mb_y*s->mb_stride + mb_x]= (get_bits1(&s->gb) ? MB_TYPE_SKIP : 0) | MB_TYPE_16x16 | MB_TYPE_L0;
306 for(mb_x=0; mb_x<s->mb_width; mb_x++){
307 if(get_bits1(&s->gb)){
308 for(mb_y=0; mb_y<s->mb_height; mb_y++){
309 mb_type[mb_y*s->mb_stride + mb_x]= MB_TYPE_SKIP | MB_TYPE_16x16 | MB_TYPE_L0;
312 for(mb_y=0; mb_y<s->mb_height; mb_y++){
313 mb_type[mb_y*s->mb_stride + mb_x]= (get_bits1(&s->gb) ? MB_TYPE_SKIP : 0) | MB_TYPE_16x16 | MB_TYPE_L0;
321 static int decode_ext_header(Wmv2Context *w){
322 MpegEncContext * const s= &w->s;
327 if(s->avctx->extradata_size<4) return -1;
329 init_get_bits(&gb, s->avctx->extradata, s->avctx->extradata_size*8);
331 fps = get_bits(&gb, 5);
332 s->bit_rate = get_bits(&gb, 11)*1024;
333 w->mspel_bit = get_bits1(&gb);
334 s->loop_filter = get_bits1(&gb);
335 w->abt_flag = get_bits1(&gb);
336 w->j_type_bit = get_bits1(&gb);
337 w->top_left_mv_flag= get_bits1(&gb);
338 w->per_mb_rl_bit = get_bits1(&gb);
339 code = get_bits(&gb, 3);
341 if(code==0) return -1;
343 s->slice_height = s->mb_height / code;
345 if(s->avctx->debug&FF_DEBUG_PICT_INFO){
346 av_log(s->avctx, AV_LOG_DEBUG, "fps:%d, br:%d, qpbit:%d, abt_flag:%d, j_type_bit:%d, tl_mv_flag:%d, mbrl_bit:%d, code:%d, loop_filter:%d, slices:%d\n",
347 fps, s->bit_rate, w->mspel_bit, w->abt_flag, w->j_type_bit, w->top_left_mv_flag, w->per_mb_rl_bit, code, s->loop_filter,
353 int ff_wmv2_decode_picture_header(MpegEncContext * s)
355 Wmv2Context * const w= (Wmv2Context*)s;
361 for(i=0; i<s->gb.size*8; i++)
362 printf("%d", get_bits1(&s->gb));
363 // get_bits1(&s->gb);
368 if(s->picture_number==0)
369 decode_ext_header(w);
371 s->pict_type = get_bits1(&s->gb) + 1;
372 if(s->pict_type == I_TYPE){
373 code = get_bits(&s->gb, 7);
374 av_log(s->avctx, AV_LOG_DEBUG, "I7:%X/\n", code);
376 s->chroma_qscale= s->qscale = get_bits(&s->gb, 5);
383 int ff_wmv2_decode_secondary_picture_header(MpegEncContext * s)
385 Wmv2Context * const w= (Wmv2Context*)s;
387 if (s->pict_type == I_TYPE) {
388 if(w->j_type_bit) w->j_type= get_bits1(&s->gb);
389 else w->j_type= 0; //FIXME check
392 if(w->per_mb_rl_bit) s->per_mb_rl_table= get_bits1(&s->gb);
393 else s->per_mb_rl_table= 0;
395 if(!s->per_mb_rl_table){
396 s->rl_chroma_table_index = decode012(&s->gb);
397 s->rl_table_index = decode012(&s->gb);
400 s->dc_table_index = get_bits1(&s->gb);
402 s->inter_intra_pred= 0;
404 if(s->avctx->debug&FF_DEBUG_PICT_INFO){
405 av_log(s->avctx, AV_LOG_DEBUG, "qscale:%d rlc:%d rl:%d dc:%d mbrl:%d j_type:%d \n",
407 s->rl_chroma_table_index,
418 cbp_index= decode012(&s->gb);
421 w->cbp_table_index= map[cbp_index];
422 }else if(s->qscale <= 20){
424 w->cbp_table_index= map[cbp_index];
427 w->cbp_table_index= map[cbp_index];
430 if(w->mspel_bit) s->mspel= get_bits1(&s->gb);
431 else s->mspel= 0; //FIXME check
434 w->per_mb_abt= get_bits1(&s->gb)^1;
436 w->abt_type= decode012(&s->gb);
440 if(w->per_mb_rl_bit) s->per_mb_rl_table= get_bits1(&s->gb);
441 else s->per_mb_rl_table= 0;
443 if(!s->per_mb_rl_table){
444 s->rl_table_index = decode012(&s->gb);
445 s->rl_chroma_table_index = s->rl_table_index;
448 s->dc_table_index = get_bits1(&s->gb);
449 s->mv_table_index = get_bits1(&s->gb);
451 s->inter_intra_pred= 0;//(s->width*s->height < 320*240 && s->bit_rate<=II_BITRATE);
454 if(s->avctx->debug&FF_DEBUG_PICT_INFO){
455 av_log(s->avctx, AV_LOG_DEBUG, "rl:%d rlc:%d dc:%d mv:%d mbrl:%d qp:%d mspel:%d per_mb_abt:%d abt_type:%d cbp:%d ii:%d\n",
457 s->rl_chroma_table_index,
466 s->inter_intra_pred);
469 s->esc3_level_length= 0;
470 s->esc3_run_length= 0;
472 s->picture_number++; //FIXME ?
476 // return wmv2_decode_j_picture(w); //FIXME
479 av_log(s->avctx, AV_LOG_ERROR, "J-type picture is not supported\n");
486 static inline int wmv2_decode_motion(Wmv2Context *w, int *mx_ptr, int *my_ptr){
487 MpegEncContext * const s= &w->s;
490 ret= ff_msmpeg4_decode_motion(s, mx_ptr, my_ptr);
494 if((((*mx_ptr)|(*my_ptr)) & 1) && s->mspel)
495 w->hshift= get_bits1(&s->gb);
499 //printf("%d %d ", *mx_ptr, *my_ptr);
504 static int16_t *wmv2_pred_motion(Wmv2Context *w, int *px, int *py){
505 MpegEncContext * const s= &w->s;
506 int xy, wrap, diff, type;
507 int16_t *A, *B, *C, *mot_val;
510 xy = s->block_index[0];
512 mot_val = s->current_picture.motion_val[0][xy];
514 A = s->current_picture.motion_val[0][xy - 1];
515 B = s->current_picture.motion_val[0][xy - wrap];
516 C = s->current_picture.motion_val[0][xy + 2 - wrap];
518 if(s->mb_x && !s->first_slice_line && !s->mspel && w->top_left_mv_flag)
519 diff= FFMAX(FFABS(A[0] - B[0]), FFABS(A[1] - B[1]));
524 type= get_bits1(&s->gb);
535 /* special case for first (slice) line */
536 if (s->first_slice_line) {
540 *px = mid_pred(A[0], B[0], C[0]);
541 *py = mid_pred(A[1], B[1], C[1]);
548 static inline int wmv2_decode_inter_block(Wmv2Context *w, DCTELEM *block, int n, int cbp){
549 MpegEncContext * const s= &w->s;
550 static const int sub_cbp_table[3]= {2,3,1};
554 s->block_last_index[n] = -1;
560 w->abt_type= decode012(&s->gb);
563 printf("B%d", w->abt_type);
565 w->abt_type_table[n]= w->abt_type;
568 // const uint8_t *scantable= w->abt_scantable[w->abt_type-1].permutated;
569 const uint8_t *scantable= w->abt_scantable[w->abt_type-1].scantable;
570 // const uint8_t *scantable= w->abt_type-1 ? w->abt_scantable[1].permutated : w->abt_scantable[0].scantable;
572 sub_cbp= sub_cbp_table[ decode012(&s->gb) ];
573 // printf("S%d", sub_cbp);
576 if (ff_msmpeg4_decode_block(s, block, n, 1, scantable) < 0)
581 if (ff_msmpeg4_decode_block(s, w->abt_block2[n], n, 1, scantable) < 0)
584 s->block_last_index[n] = 63;
588 return ff_msmpeg4_decode_block(s, block, n, 1, s->inter_scantable.permutated);
592 static void wmv2_add_block(Wmv2Context *w, DCTELEM *block1, uint8_t *dst, int stride, int n){
593 MpegEncContext * const s= &w->s;
595 if (s->block_last_index[n] >= 0) {
596 switch(w->abt_type_table[n]){
598 s->dsp.idct_add (dst, stride, block1);
601 simple_idct84_add(dst , stride, block1);
602 simple_idct84_add(dst + 4*stride, stride, w->abt_block2[n]);
603 memset(w->abt_block2[n], 0, 64*sizeof(DCTELEM));
606 simple_idct48_add(dst , stride, block1);
607 simple_idct48_add(dst + 4 , stride, w->abt_block2[n]);
608 memset(w->abt_block2[n], 0, 64*sizeof(DCTELEM));
611 av_log(s->avctx, AV_LOG_ERROR, "internal error in WMV2 abt\n");
616 void ff_wmv2_add_mb(MpegEncContext *s, DCTELEM block1[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr){
617 Wmv2Context * const w= (Wmv2Context*)s;
619 wmv2_add_block(w, block1[0], dest_y , s->linesize, 0);
620 wmv2_add_block(w, block1[1], dest_y + 8 , s->linesize, 1);
621 wmv2_add_block(w, block1[2], dest_y + 8*s->linesize, s->linesize, 2);
622 wmv2_add_block(w, block1[3], dest_y + 8 + 8*s->linesize, s->linesize, 3);
624 if(s->flags&CODEC_FLAG_GRAY) return;
626 wmv2_add_block(w, block1[4], dest_cb , s->uvlinesize, 4);
627 wmv2_add_block(w, block1[5], dest_cr , s->uvlinesize, 5);
630 void ff_mspel_motion(MpegEncContext *s,
631 uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
632 uint8_t **ref_picture, op_pixels_func (*pix_op)[4],
633 int motion_x, int motion_y, int h)
635 Wmv2Context * const w= (Wmv2Context*)s;
637 int dxy, offset, mx, my, src_x, src_y, v_edge_pos, linesize, uvlinesize;
640 dxy = ((motion_y & 1) << 1) | (motion_x & 1);
641 dxy = 2*dxy + w->hshift;
642 src_x = s->mb_x * 16 + (motion_x >> 1);
643 src_y = s->mb_y * 16 + (motion_y >> 1);
645 /* WARNING: do no forget half pels */
646 v_edge_pos = s->v_edge_pos;
647 src_x = av_clip(src_x, -16, s->width);
648 src_y = av_clip(src_y, -16, s->height);
650 if(src_x<=-16 || src_x >= s->width)
652 if(src_y<=-16 || src_y >= s->height)
655 linesize = s->linesize;
656 uvlinesize = s->uvlinesize;
657 ptr = ref_picture[0] + (src_y * linesize) + src_x;
659 if(s->flags&CODEC_FLAG_EMU_EDGE){
660 if(src_x<1 || src_y<1 || src_x + 17 >= s->h_edge_pos
661 || src_y + h+1 >= v_edge_pos){
662 ff_emulated_edge_mc(s->edge_emu_buffer, ptr - 1 - s->linesize, s->linesize, 19, 19,
663 src_x-1, src_y-1, s->h_edge_pos, s->v_edge_pos);
664 ptr= s->edge_emu_buffer + 1 + s->linesize;
669 s->dsp.put_mspel_pixels_tab[dxy](dest_y , ptr , linesize);
670 s->dsp.put_mspel_pixels_tab[dxy](dest_y+8 , ptr+8 , linesize);
671 s->dsp.put_mspel_pixels_tab[dxy](dest_y +8*linesize, ptr +8*linesize, linesize);
672 s->dsp.put_mspel_pixels_tab[dxy](dest_y+8+8*linesize, ptr+8+8*linesize, linesize);
674 if(s->flags&CODEC_FLAG_GRAY) return;
676 if (s->out_format == FMT_H263) {
678 if ((motion_x & 3) != 0)
680 if ((motion_y & 3) != 0)
687 dxy = ((my & 1) << 1) | (mx & 1);
692 src_x = s->mb_x * 8 + mx;
693 src_y = s->mb_y * 8 + my;
694 src_x = av_clip(src_x, -8, s->width >> 1);
695 if (src_x == (s->width >> 1))
697 src_y = av_clip(src_y, -8, s->height >> 1);
698 if (src_y == (s->height >> 1))
700 offset = (src_y * uvlinesize) + src_x;
701 ptr = ref_picture[1] + offset;
703 ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9,
704 src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1);
705 ptr= s->edge_emu_buffer;
707 pix_op[1][dxy](dest_cb, ptr, uvlinesize, h >> 1);
709 ptr = ref_picture[2] + offset;
711 ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9,
712 src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1);
713 ptr= s->edge_emu_buffer;
715 pix_op[1][dxy](dest_cr, ptr, uvlinesize, h >> 1);
719 int ff_wmv2_decode_mb(MpegEncContext *s, DCTELEM block[6][64])
721 Wmv2Context * const w= (Wmv2Context*)s;
725 if(w->j_type) return 0;
727 if (s->pict_type == P_TYPE) {
728 if(IS_SKIP(s->current_picture.mb_type[s->mb_y * s->mb_stride + s->mb_x])){
732 s->block_last_index[i] = -1;
733 s->mv_dir = MV_DIR_FORWARD;
734 s->mv_type = MV_TYPE_16X16;
742 code = get_vlc2(&s->gb, ff_mb_non_intra_vlc[w->cbp_table_index].table, MB_NON_INTRA_VLC_BITS, 3);
745 s->mb_intra = (~code & 0x40) >> 6;
750 code = get_vlc2(&s->gb, ff_msmp4_mb_i_vlc.table, MB_INTRA_VLC_BITS, 2);
752 av_log(s->avctx, AV_LOG_ERROR, "II-cbp illegal at %d %d\n", s->mb_x, s->mb_y);
755 /* predict coded block pattern */
758 int val = ((code >> (5 - i)) & 1);
760 int pred = ff_msmpeg4_coded_block_pred(s, i, &coded_val);
764 cbp |= val << (5 - i);
770 //printf("P at %d %d\n", s->mb_x, s->mb_y);
771 wmv2_pred_motion(w, &mx, &my);
774 s->dsp.clear_blocks(s->block[0]);
775 if(s->per_mb_rl_table){
776 s->rl_table_index = decode012(&s->gb);
777 s->rl_chroma_table_index = s->rl_table_index;
780 if(w->abt_flag && w->per_mb_abt){
781 w->per_block_abt= get_bits1(&s->gb);
782 if(!w->per_block_abt)
783 w->abt_type= decode012(&s->gb);
788 if (wmv2_decode_motion(w, &mx, &my) < 0)
791 s->mv_dir = MV_DIR_FORWARD;
792 s->mv_type = MV_TYPE_16X16;
796 for (i = 0; i < 6; i++) {
797 if (wmv2_decode_inter_block(w, block[i], i, (cbp >> (5 - i)) & 1) < 0)
799 av_log(s->avctx, AV_LOG_ERROR, "\nerror while decoding inter block: %d x %d (%d)\n", s->mb_x, s->mb_y, i);
804 //if(s->pict_type==P_TYPE)
805 // printf("%d%d ", s->inter_intra_pred, cbp);
806 //printf("I at %d %d %d %06X\n", s->mb_x, s->mb_y, ((cbp&3)? 1 : 0) +((cbp&0x3C)? 2 : 0), show_bits(&s->gb, 24));
807 s->ac_pred = get_bits1(&s->gb);
808 if(s->inter_intra_pred){
809 s->h263_aic_dir= get_vlc2(&s->gb, ff_inter_intra_vlc.table, INTER_INTRA_VLC_BITS, 1);
810 // printf("%d%d %d %d/", s->ac_pred, s->h263_aic_dir, s->mb_x, s->mb_y);
812 if(s->per_mb_rl_table && cbp){
813 s->rl_table_index = decode012(&s->gb);
814 s->rl_chroma_table_index = s->rl_table_index;
817 s->dsp.clear_blocks(s->block[0]);
818 for (i = 0; i < 6; i++) {
819 if (ff_msmpeg4_decode_block(s, block[i], i, (cbp >> (5 - i)) & 1, NULL) < 0)
821 av_log(s->avctx, AV_LOG_ERROR, "\nerror while decoding intra block: %d x %d (%d)\n", s->mb_x, s->mb_y, i);
830 static int wmv2_decode_init(AVCodecContext *avctx){
831 Wmv2Context * const w= avctx->priv_data;
833 if(ff_h263_decode_init(avctx) < 0)
841 #ifdef CONFIG_WMV2_DECODER
842 AVCodec wmv2_decoder = {
850 ff_h263_decode_frame,
851 CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1,
855 #ifdef CONFIG_WMV2_ENCODER
856 AVCodec wmv2_encoder = {
864 .pix_fmts= (enum PixelFormat[]){PIX_FMT_YUV420P, -1},