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indeo4: reuse context block VLC for band instead of defaulting

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Currently if no custom block VLC is specified for band, a default block VLC
will be used, while the global block VLC stored in the context should be used
instead.

This fixes decoding of one sample I have.
This commit is contained in:
Kostya Shishkov 2013-05-25 12:35:12 +02:00
parent 6647aa0426
commit 2cf5d29110
1 changed files with 6 additions and 3 deletions
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9
libavcodec/indeo4.c
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@ -362,9 +362,12 @@ static int decode_band_hdr(IVI45DecContext *ctx, IVIBandDesc *band,
}
/* decode block huffman codebook */
if (ff_ivi_dec_huff_desc(&ctx->gb, get_bits1(&ctx->gb), IVI_BLK_HUFF,
&band->blk_vlc, avctx))
return AVERROR_INVALIDDATA;
if (!get_bits1(&ctx->gb))
band->blk_vlc.tab = ctx->blk_vlc.tab;
else
if (ff_ivi_dec_huff_desc(&ctx->gb, 1, IVI_BLK_HUFF,
&band->blk_vlc, avctx))
return AVERROR_INVALIDDATA;
/* select appropriate rvmap table for this band */
band->rvmap_sel = get_bits1(&ctx->gb) ? get_bits(&ctx->gb, 3) : 8;