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avcodec/svq1dec: Increase nb_bits of VLC to read it in one go

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Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
This commit is contained in:
Andreas Rheinhardt 2020-12-29 20:34:01 +01:00
parent 4425aa4be5
commit be1f5bae31
1 changed files with 5 additions and 3 deletions
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8
libavcodec/svq1dec.c
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@ -43,6 +43,7 @@
#include "mathops.h"
#include "svq1.h"
#define SVQ1_BLOCK_TYPE_VLC_BITS 3
static VLC svq1_block_type;
static VLC svq1_motion_component;
static VLC svq1_intra_multistage[6];
@ -456,7 +457,8 @@ static int svq1_decode_delta_block(AVCodecContext *avctx, HpelDSPContext *hdsp,
int result = 0;
/* get block type */
block_type = get_vlc2(bitbuf, svq1_block_type.table, 2, 2);
block_type = get_vlc2(bitbuf, svq1_block_type.table,
SVQ1_BLOCK_TYPE_VLC_BITS, 1);
/* reset motion vectors */
if (block_type == SVQ1_BLOCK_SKIP || block_type == SVQ1_BLOCK_INTRA) {
@ -765,9 +767,9 @@ err:
static av_cold void svq1_static_init(void)
{
INIT_VLC_STATIC(&svq1_block_type, 2, 4,
INIT_VLC_STATIC(&svq1_block_type, SVQ1_BLOCK_TYPE_VLC_BITS, 4,
&ff_svq1_block_type_vlc[0][1], 2, 1,
&ff_svq1_block_type_vlc[0][0], 2, 1, 6);
&ff_svq1_block_type_vlc[0][0], 2, 1, 8);
INIT_VLC_STATIC(&svq1_motion_component, 7, 33,
&ff_mvtab[0][1], 2, 1,