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; }
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; }