/* * Copyright (c) 2002 The FFmpeg Project. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ /** * @file wmv2.c * wmv2 codec. */ #include "simple_idct.h" #define SKIP_TYPE_NONE 0 #define SKIP_TYPE_MPEG 1 #define SKIP_TYPE_ROW 2 #define SKIP_TYPE_COL 3 typedef struct Wmv2Context{ MpegEncContext s; int j_type_bit; int j_type; int flag3; int flag63; int abt_flag; int abt_type; int abt_type_table[6]; int per_mb_abt; int per_block_abt; int mspel_bit; int cbp_table_index; int top_left_mv_flag; int per_mb_rl_bit; int skip_type; int hshift; ScanTable abt_scantable[2]; DCTELEM abt_block2[6][64] __align8; }Wmv2Context; static void wmv2_common_init(Wmv2Context * w){ MpegEncContext * const s= &w->s; ff_init_scantable(s->dsp.idct_permutation, &w->abt_scantable[0], wmv2_scantableA); ff_init_scantable(s->dsp.idct_permutation, &w->abt_scantable[1], wmv2_scantableB); } #ifdef CONFIG_ENCODERS static int encode_ext_header(Wmv2Context *w){ MpegEncContext * const s= &w->s; PutBitContext pb; int code; init_put_bits(&pb, s->avctx->extradata, s->avctx->extradata_size); put_bits(&pb, 5, s->avctx->frame_rate / s->avctx->frame_rate_base); //yes 29.97 -> 29 put_bits(&pb, 11, FFMIN(s->bit_rate/1024, 2047)); put_bits(&pb, 1, w->mspel_bit=1); put_bits(&pb, 1, w->flag3=1); put_bits(&pb, 1, w->abt_flag=1); put_bits(&pb, 1, w->j_type_bit=1); put_bits(&pb, 1, w->top_left_mv_flag=0); put_bits(&pb, 1, w->per_mb_rl_bit=1); put_bits(&pb, 3, code=1); flush_put_bits(&pb); s->slice_height = s->mb_height / code; return 0; } static int wmv2_encode_init(AVCodecContext *avctx){ Wmv2Context * const w= avctx->priv_data; if(MPV_encode_init(avctx) < 0) return -1; wmv2_common_init(w); avctx->extradata_size= 4; avctx->extradata= av_mallocz(avctx->extradata_size + 10); encode_ext_header(w); return 0; } static int wmv2_encode_end(AVCodecContext *avctx){ if(MPV_encode_end(avctx) < 0) return -1; avctx->extradata_size= 0; av_freep(&avctx->extradata); return 0; } int ff_wmv2_encode_picture_header(MpegEncContext * s, int picture_number) { Wmv2Context * const w= (Wmv2Context*)s; put_bits(&s->pb, 1, s->pict_type - 1); if(s->pict_type == I_TYPE){ put_bits(&s->pb, 7, 0); } put_bits(&s->pb, 5, s->qscale); s->dc_table_index = 1; s->mv_table_index = 1; /* only if P frame */ // s->use_skip_mb_code = 1; /* only if P frame */ s->per_mb_rl_table = 0; s->mspel= 0; w->per_mb_abt=0; w->abt_type=0; w->j_type=0; assert(s->flipflop_rounding); if (s->pict_type == I_TYPE) { assert(s->no_rounding==1); if(w->j_type_bit) put_bits(&s->pb, 1, w->j_type); if(w->per_mb_rl_bit) put_bits(&s->pb, 1, s->per_mb_rl_table); if(!s->per_mb_rl_table){ code012(&s->pb, s->rl_chroma_table_index); code012(&s->pb, s->rl_table_index); } put_bits(&s->pb, 1, s->dc_table_index); s->inter_intra_pred= 0; }else{ int cbp_index; put_bits(&s->pb, 2, SKIP_TYPE_NONE); code012(&s->pb, cbp_index=0); if(s->qscale <= 10){ int map[3]= {0,2,1}; w->cbp_table_index= map[cbp_index]; }else if(s->qscale <= 20){ int map[3]= {1,0,2}; w->cbp_table_index= map[cbp_index]; }else{ int map[3]= {2,1,0}; w->cbp_table_index= map[cbp_index]; } if(w->mspel_bit) put_bits(&s->pb, 1, s->mspel); if(w->abt_flag){ put_bits(&s->pb, 1, w->per_mb_abt^1); if(!w->per_mb_abt){ code012(&s->pb, w->abt_type); } } if(w->per_mb_rl_bit) put_bits(&s->pb, 1, s->per_mb_rl_table); if(!s->per_mb_rl_table){ code012(&s->pb, s->rl_table_index); s->rl_chroma_table_index = s->rl_table_index; } put_bits(&s->pb, 1, s->dc_table_index); put_bits(&s->pb, 1, s->mv_table_index); s->inter_intra_pred= 0;//(s->width*s->height < 320*240 && s->bit_rate<=II_BITRATE); } s->esc3_level_length= 0; s->esc3_run_length= 0; return 0; } // nearly idential to wmv1 but thats just because we dont use the useless M$ crap features // its duplicated here in case someone wants to add support for these carp features void ff_wmv2_encode_mb(MpegEncContext * s, DCTELEM block[6][64], int motion_x, int motion_y) { Wmv2Context * const w= (Wmv2Context*)s; int cbp, coded_cbp, i; int pred_x, pred_y; uint8_t *coded_block; handle_slices(s); if (!s->mb_intra) { /* compute cbp */ set_stat(ST_INTER_MB); cbp = 0; for (i = 0; i < 6; i++) { if (s->block_last_index[i] >= 0) cbp |= 1 << (5 - i); } put_bits(&s->pb, wmv2_inter_table[w->cbp_table_index][cbp + 64][1], wmv2_inter_table[w->cbp_table_index][cbp + 64][0]); /* motion vector */ h263_pred_motion(s, 0, 0, &pred_x, &pred_y); msmpeg4_encode_motion(s, motion_x - pred_x, motion_y - pred_y); } else { /* compute cbp */ cbp = 0; coded_cbp = 0; for (i = 0; i < 6; i++) { int val, pred; val = (s->block_last_index[i] >= 1); cbp |= val << (5 - i); if (i < 4) { /* predict value for close blocks only for luma */ pred = coded_block_pred(s, i, &coded_block); *coded_block = val; val = val ^ pred; } coded_cbp |= val << (5 - i); } #if 0 if (coded_cbp) printf("cbp=%x %x\n", cbp, coded_cbp); #endif if (s->pict_type == I_TYPE) { set_stat(ST_INTRA_MB); put_bits(&s->pb, table_mb_intra[coded_cbp][1], table_mb_intra[coded_cbp][0]); } else { put_bits(&s->pb, wmv2_inter_table[w->cbp_table_index][cbp][1], wmv2_inter_table[w->cbp_table_index][cbp][0]); } set_stat(ST_INTRA_MB); put_bits(&s->pb, 1, 0); /* no AC prediction yet */ if(s->inter_intra_pred){ s->h263_aic_dir=0; put_bits(&s->pb, table_inter_intra[s->h263_aic_dir][1], table_inter_intra[s->h263_aic_dir][0]); } } for (i = 0; i < 6; i++) { msmpeg4_encode_block(s, block[i], i); } } #endif //CONFIG_ENCODERS static void parse_mb_skip(Wmv2Context * w){ int mb_x, mb_y; MpegEncContext * const s= &w->s; uint32_t * const mb_type= s->current_picture_ptr->mb_type; w->skip_type= get_bits(&s->gb, 2); switch(w->skip_type){ case SKIP_TYPE_NONE: for(mb_y=0; mb_y<s->mb_height; mb_y++){ for(mb_x=0; mb_x<s->mb_width; mb_x++){ mb_type[mb_y*s->mb_stride + mb_x]= MB_TYPE_16x16 | MB_TYPE_L0; } } break; case SKIP_TYPE_MPEG: for(mb_y=0; mb_y<s->mb_height; mb_y++){ for(mb_x=0; mb_x<s->mb_width; mb_x++){ mb_type[mb_y*s->mb_stride + mb_x]= (get_bits1(&s->gb) ? MB_TYPE_SKIP : 0) | MB_TYPE_16x16 | MB_TYPE_L0; } } break; case SKIP_TYPE_ROW: for(mb_y=0; mb_y<s->mb_height; mb_y++){ if(get_bits1(&s->gb)){ for(mb_x=0; mb_x<s->mb_width; mb_x++){ mb_type[mb_y*s->mb_stride + mb_x]= MB_TYPE_SKIP | MB_TYPE_16x16 | MB_TYPE_L0; } }else{ for(mb_x=0; mb_x<s->mb_width; mb_x++){ mb_type[mb_y*s->mb_stride + mb_x]= (get_bits1(&s->gb) ? MB_TYPE_SKIP : 0) | MB_TYPE_16x16 | MB_TYPE_L0; } } } break; case SKIP_TYPE_COL: for(mb_x=0; mb_x<s->mb_width; mb_x++){ if(get_bits1(&s->gb)){ for(mb_y=0; mb_y<s->mb_height; mb_y++){ mb_type[mb_y*s->mb_stride + mb_x]= MB_TYPE_SKIP | MB_TYPE_16x16 | MB_TYPE_L0; } }else{ for(mb_y=0; mb_y<s->mb_height; mb_y++){ mb_type[mb_y*s->mb_stride + mb_x]= (get_bits1(&s->gb) ? MB_TYPE_SKIP : 0) | MB_TYPE_16x16 | MB_TYPE_L0; } } } break; } } static int decode_ext_header(Wmv2Context *w){ MpegEncContext * const s= &w->s; GetBitContext gb; int fps; int code; if(s->avctx->extradata_size<4) return -1; init_get_bits(&gb, s->avctx->extradata, s->avctx->extradata_size*8); fps = get_bits(&gb, 5); s->bit_rate = get_bits(&gb, 11)*1024; w->mspel_bit = get_bits1(&gb); w->flag3 = get_bits1(&gb); w->abt_flag = get_bits1(&gb); w->j_type_bit = get_bits1(&gb); w->top_left_mv_flag= get_bits1(&gb); w->per_mb_rl_bit = get_bits1(&gb); code = get_bits(&gb, 3); if(code==0) return -1; s->slice_height = s->mb_height / code; if(s->avctx->debug&FF_DEBUG_PICT_INFO){ 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, flag3:%d, slices:%d\n", 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, w->flag3, code); } return 0; } int ff_wmv2_decode_picture_header(MpegEncContext * s) { Wmv2Context * const w= (Wmv2Context*)s; int code; #if 0 { int i; for(i=0; i<s->gb.size*8; i++) printf("%d", get_bits1(&s->gb)); // get_bits1(&s->gb); printf("END\n"); return -1; } #endif if(s->picture_number==0) decode_ext_header(w); s->pict_type = get_bits(&s->gb, 1) + 1; if(s->pict_type == I_TYPE){ code = get_bits(&s->gb, 7); av_log(s->avctx, AV_LOG_ERROR, "I7:%X/\n", code); } s->chroma_qscale= s->qscale = get_bits(&s->gb, 5); if(s->qscale < 0) return -1; return 0; } int ff_wmv2_decode_secondary_picture_header(MpegEncContext * s) { Wmv2Context * const w= (Wmv2Context*)s; if (s->pict_type == I_TYPE) { if(w->j_type_bit) w->j_type= get_bits1(&s->gb); else w->j_type= 0; //FIXME check if(!w->j_type){ if(w->per_mb_rl_bit) s->per_mb_rl_table= get_bits1(&s->gb); else s->per_mb_rl_table= 0; if(!s->per_mb_rl_table){ s->rl_chroma_table_index = decode012(&s->gb); s->rl_table_index = decode012(&s->gb); } s->dc_table_index = get_bits1(&s->gb); } s->inter_intra_pred= 0; s->no_rounding = 1; if(s->avctx->debug&FF_DEBUG_PICT_INFO){ av_log(s->avctx, AV_LOG_DEBUG, "qscale:%d rlc:%d rl:%d dc:%d mbrl:%d j_type:%d \n", s->qscale, s->rl_chroma_table_index, s->rl_table_index, s->dc_table_index, s->per_mb_rl_table, w->j_type); } }else{ int cbp_index; w->j_type=0; parse_mb_skip(w); cbp_index= decode012(&s->gb); if(s->qscale <= 10){ int map[3]= {0,2,1}; w->cbp_table_index= map[cbp_index]; }else if(s->qscale <= 20){ int map[3]= {1,0,2}; w->cbp_table_index= map[cbp_index]; }else{ int map[3]= {2,1,0}; w->cbp_table_index= map[cbp_index]; } if(w->mspel_bit) s->mspel= get_bits1(&s->gb); else s->mspel= 0; //FIXME check if(w->abt_flag){ w->per_mb_abt= get_bits1(&s->gb)^1; if(!w->per_mb_abt){ w->abt_type= decode012(&s->gb); } } if(w->per_mb_rl_bit) s->per_mb_rl_table= get_bits1(&s->gb); else s->per_mb_rl_table= 0; if(!s->per_mb_rl_table){ s->rl_table_index = decode012(&s->gb); s->rl_chroma_table_index = s->rl_table_index; } s->dc_table_index = get_bits1(&s->gb); s->mv_table_index = get_bits1(&s->gb); s->inter_intra_pred= 0;//(s->width*s->height < 320*240 && s->bit_rate<=II_BITRATE); s->no_rounding ^= 1; if(s->avctx->debug&FF_DEBUG_PICT_INFO){ 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", s->rl_table_index, s->rl_chroma_table_index, s->dc_table_index, s->mv_table_index, s->per_mb_rl_table, s->qscale, s->mspel, w->per_mb_abt, w->abt_type, w->cbp_table_index, s->inter_intra_pred); } } s->esc3_level_length= 0; s->esc3_run_length= 0; s->picture_number++; //FIXME ? // if(w->j_type) // return wmv2_decode_j_picture(w); //FIXME if(w->j_type){ av_log(s->avctx, AV_LOG_ERROR, "J-type picture isnt supported\n"); return -1; } return 0; } static void ff_wmv2_decode_init(MpegEncContext *s){ } static inline int wmv2_decode_motion(Wmv2Context *w, int *mx_ptr, int *my_ptr){ MpegEncContext * const s= &w->s; int ret; ret= msmpeg4_decode_motion(s, mx_ptr, my_ptr); if(ret<0) return -1; if((((*mx_ptr)|(*my_ptr)) & 1) && s->mspel) w->hshift= get_bits1(&s->gb); else w->hshift= 0; //printf("%d %d ", *mx_ptr, *my_ptr); return 0; } static int16_t *wmv2_pred_motion(Wmv2Context *w, int *px, int *py){ MpegEncContext * const s= &w->s; int xy, wrap, diff, type; int16_t *A, *B, *C, *mot_val; wrap = s->b8_stride; xy = s->block_index[0]; mot_val = s->current_picture.motion_val[0][xy]; A = s->current_picture.motion_val[0][xy - 1]; B = s->current_picture.motion_val[0][xy - wrap]; C = s->current_picture.motion_val[0][xy + 2 - wrap]; diff= FFMAX(ABS(A[0] - B[0]), ABS(A[1] - B[1])); if(s->mb_x && !s->first_slice_line && !s->mspel && w->top_left_mv_flag && diff >= 8) type= get_bits1(&s->gb); else type= 2; if(type == 0){ *px= A[0]; *py= A[1]; }else if(type == 1){ *px= B[0]; *py= B[1]; }else{ /* special case for first (slice) line */ if (s->first_slice_line) { *px = A[0]; *py = A[1]; } else { *px = mid_pred(A[0], B[0], C[0]); *py = mid_pred(A[1], B[1], C[1]); } } return mot_val; } static inline int wmv2_decode_inter_block(Wmv2Context *w, DCTELEM *block, int n, int cbp){ MpegEncContext * const s= &w->s; static const int sub_cbp_table[3]= {2,3,1}; int sub_cbp; if(!cbp){ s->block_last_index[n] = -1; return 0; } if(w->per_block_abt) w->abt_type= decode012(&s->gb); #if 0 if(w->per_block_abt) printf("B%d", w->abt_type); #endif w->abt_type_table[n]= w->abt_type; if(w->abt_type){ // const uint8_t *scantable= w->abt_scantable[w->abt_type-1].permutated; const uint8_t *scantable= w->abt_scantable[w->abt_type-1].scantable; // const uint8_t *scantable= w->abt_type-1 ? w->abt_scantable[1].permutated : w->abt_scantable[0].scantable; sub_cbp= sub_cbp_table[ decode012(&s->gb) ]; // printf("S%d", sub_cbp); if(sub_cbp&1){ if (msmpeg4_decode_block(s, block, n, 1, scantable) < 0) return -1; } if(sub_cbp&2){ if (msmpeg4_decode_block(s, w->abt_block2[n], n, 1, scantable) < 0) return -1; } s->block_last_index[n] = 63; return 0; }else{ return msmpeg4_decode_block(s, block, n, 1, s->inter_scantable.permutated); } } static void wmv2_add_block(Wmv2Context *w, DCTELEM *block1, uint8_t *dst, int stride, int n){ MpegEncContext * const s= &w->s; switch(w->abt_type_table[n]){ case 0: if (s->block_last_index[n] >= 0) { s->dsp.idct_add (dst, stride, block1); } break; case 1: simple_idct84_add(dst , stride, block1); simple_idct84_add(dst + 4*stride, stride, w->abt_block2[n]); memset(w->abt_block2[n], 0, 64*sizeof(DCTELEM)); break; case 2: simple_idct48_add(dst , stride, block1); simple_idct48_add(dst + 4 , stride, w->abt_block2[n]); memset(w->abt_block2[n], 0, 64*sizeof(DCTELEM)); break; default: av_log(s->avctx, AV_LOG_ERROR, "internal error in WMV2 abt\n"); } } void ff_wmv2_add_mb(MpegEncContext *s, DCTELEM block1[6][64], uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr){ Wmv2Context * const w= (Wmv2Context*)s; wmv2_add_block(w, block1[0], dest_y , s->linesize, 0); wmv2_add_block(w, block1[1], dest_y + 8 , s->linesize, 1); wmv2_add_block(w, block1[2], dest_y + 8*s->linesize, s->linesize, 2); wmv2_add_block(w, block1[3], dest_y + 8 + 8*s->linesize, s->linesize, 3); if(s->flags&CODEC_FLAG_GRAY) return; wmv2_add_block(w, block1[4], dest_cb , s->uvlinesize, 4); wmv2_add_block(w, block1[5], dest_cr , s->uvlinesize, 5); } void ff_mspel_motion(MpegEncContext *s, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, uint8_t **ref_picture, op_pixels_func (*pix_op)[4], int motion_x, int motion_y, int h) { Wmv2Context * const w= (Wmv2Context*)s; uint8_t *ptr; int dxy, offset, mx, my, src_x, src_y, v_edge_pos, linesize, uvlinesize; int emu=0; dxy = ((motion_y & 1) << 1) | (motion_x & 1); dxy = 2*dxy + w->hshift; src_x = s->mb_x * 16 + (motion_x >> 1); src_y = s->mb_y * 16 + (motion_y >> 1); /* WARNING: do no forget half pels */ v_edge_pos = s->v_edge_pos; src_x = clip(src_x, -16, s->width); src_y = clip(src_y, -16, s->height); linesize = s->linesize; uvlinesize = s->uvlinesize; ptr = ref_picture[0] + (src_y * linesize) + src_x; if(s->flags&CODEC_FLAG_EMU_EDGE){ if(src_x<1 || src_y<1 || src_x + 17 >= s->h_edge_pos || src_y + h+1 >= v_edge_pos){ ff_emulated_edge_mc(s->edge_emu_buffer, ptr - 1 - s->linesize, s->linesize, 19, 19, src_x-1, src_y-1, s->h_edge_pos, s->v_edge_pos); ptr= s->edge_emu_buffer + 1 + s->linesize; emu=1; } } s->dsp.put_mspel_pixels_tab[dxy](dest_y , ptr , linesize); s->dsp.put_mspel_pixels_tab[dxy](dest_y+8 , ptr+8 , linesize); s->dsp.put_mspel_pixels_tab[dxy](dest_y +8*linesize, ptr +8*linesize, linesize); s->dsp.put_mspel_pixels_tab[dxy](dest_y+8+8*linesize, ptr+8+8*linesize, linesize); if(s->flags&CODEC_FLAG_GRAY) return; if (s->out_format == FMT_H263) { dxy = 0; if ((motion_x & 3) != 0) dxy |= 1; if ((motion_y & 3) != 0) dxy |= 2; mx = motion_x >> 2; my = motion_y >> 2; } else { mx = motion_x / 2; my = motion_y / 2; dxy = ((my & 1) << 1) | (mx & 1); mx >>= 1; my >>= 1; } src_x = s->mb_x * 8 + mx; src_y = s->mb_y * 8 + my; src_x = clip(src_x, -8, s->width >> 1); if (src_x == (s->width >> 1)) dxy &= ~1; src_y = clip(src_y, -8, s->height >> 1); if (src_y == (s->height >> 1)) dxy &= ~2; offset = (src_y * uvlinesize) + src_x; ptr = ref_picture[1] + offset; if(emu){ ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1); ptr= s->edge_emu_buffer; } pix_op[1][dxy](dest_cb, ptr, uvlinesize, h >> 1); ptr = ref_picture[2] + offset; if(emu){ ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9, src_x, src_y, s->h_edge_pos>>1, s->v_edge_pos>>1); ptr= s->edge_emu_buffer; } pix_op[1][dxy](dest_cr, ptr, uvlinesize, h >> 1); } static int wmv2_decode_mb(MpegEncContext *s, DCTELEM block[6][64]) { Wmv2Context * const w= (Wmv2Context*)s; int cbp, code, i; uint8_t *coded_val; if(w->j_type) return 0; if (s->pict_type == P_TYPE) { if(IS_SKIP(s->current_picture.mb_type[s->mb_y * s->mb_stride + s->mb_x])){ /* skip mb */ s->mb_intra = 0; for(i=0;i<6;i++) s->block_last_index[i] = -1; s->mv_dir = MV_DIR_FORWARD; s->mv_type = MV_TYPE_16X16; s->mv[0][0][0] = 0; s->mv[0][0][1] = 0; s->mb_skiped = 1; w->hshift=0; return 0; } code = get_vlc2(&s->gb, mb_non_intra_vlc[w->cbp_table_index].table, MB_NON_INTRA_VLC_BITS, 3); if (code < 0) return -1; s->mb_intra = (~code & 0x40) >> 6; cbp = code & 0x3f; } else { s->mb_intra = 1; code = get_vlc2(&s->gb, mb_intra_vlc.table, MB_INTRA_VLC_BITS, 2); if (code < 0){ av_log(s->avctx, AV_LOG_ERROR, "II-cbp illegal at %d %d\n", s->mb_x, s->mb_y); return -1; } /* predict coded block pattern */ cbp = 0; for(i=0;i<6;i++) { int val = ((code >> (5 - i)) & 1); if (i < 4) { int pred = coded_block_pred(s, i, &coded_val); val = val ^ pred; *coded_val = val; } cbp |= val << (5 - i); } } if (!s->mb_intra) { int mx, my; //printf("P at %d %d\n", s->mb_x, s->mb_y); wmv2_pred_motion(w, &mx, &my); if(cbp){ if(s->per_mb_rl_table){ s->rl_table_index = decode012(&s->gb); s->rl_chroma_table_index = s->rl_table_index; } if(w->abt_flag && w->per_mb_abt){ w->per_block_abt= get_bits1(&s->gb); if(!w->per_block_abt) w->abt_type= decode012(&s->gb); }else w->per_block_abt=0; } if (wmv2_decode_motion(w, &mx, &my) < 0) return -1; s->mv_dir = MV_DIR_FORWARD; s->mv_type = MV_TYPE_16X16; s->mv[0][0][0] = mx; s->mv[0][0][1] = my; for (i = 0; i < 6; i++) { if (wmv2_decode_inter_block(w, block[i], i, (cbp >> (5 - i)) & 1) < 0) { av_log(s->avctx, AV_LOG_ERROR, "\nerror while decoding inter block: %d x %d (%d)\n", s->mb_x, s->mb_y, i); return -1; } } } else { //if(s->pict_type==P_TYPE) // printf("%d%d ", s->inter_intra_pred, cbp); //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)); s->ac_pred = get_bits1(&s->gb); if(s->inter_intra_pred){ s->h263_aic_dir= get_vlc2(&s->gb, inter_intra_vlc.table, INTER_INTRA_VLC_BITS, 1); // printf("%d%d %d %d/", s->ac_pred, s->h263_aic_dir, s->mb_x, s->mb_y); } if(s->per_mb_rl_table && cbp){ s->rl_table_index = decode012(&s->gb); s->rl_chroma_table_index = s->rl_table_index; } for (i = 0; i < 6; i++) { if (msmpeg4_decode_block(s, block[i], i, (cbp >> (5 - i)) & 1, NULL) < 0) { av_log(s->avctx, AV_LOG_ERROR, "\nerror while decoding intra block: %d x %d (%d)\n", s->mb_x, s->mb_y, i); return -1; } } } return 0; } static int wmv2_decode_init(AVCodecContext *avctx){ Wmv2Context * const w= avctx->priv_data; if(ff_h263_decode_init(avctx) < 0) return -1; wmv2_common_init(w); return 0; } AVCodec wmv2_decoder = { "wmv2", CODEC_TYPE_VIDEO, CODEC_ID_WMV2, sizeof(Wmv2Context), wmv2_decode_init, NULL, ff_h263_decode_end, ff_h263_decode_frame, CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1, }; #ifdef CONFIG_ENCODERS AVCodec wmv2_encoder = { "wmv2", CODEC_TYPE_VIDEO, CODEC_ID_WMV2, sizeof(Wmv2Context), wmv2_encode_init, MPV_encode_picture, MPV_encode_end, }; #endif