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Code Issues Releases Activity

avcodec/wnv1: Avoid unnecessary VLC structure

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Everything besides VLC.table is basically write-only
and even VLC.table can be removed by accessing the
underlying table directly.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2023-09-24 15:21:06 +02:00
parent 1ae750a16e
commit b60a3f70be
1 changed files with 6 additions and 6 deletions
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12
libavcodec/wnv1.c
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@ -39,12 +39,12 @@ static const uint8_t code_tab[16][2] = {
};
#define CODE_VLC_BITS 9
static VLC code_vlc;
static VLCElem code_vlc[1 << CODE_VLC_BITS];
/* returns modified base_value */
static inline int wnv1_get_code(GetBitContext *gb, int shift, int base_value)
{
int v = get_vlc2(gb, code_vlc.table, CODE_VLC_BITS, 1);
int v = get_vlc2(gb, code_vlc, CODE_VLC_BITS, 1);
if (v == 8)
return get_bits(gb, 8 - shift) << shift;
@ -115,10 +115,10 @@ static int decode_frame(AVCodecContext *avctx, AVFrame *p,
static av_cold void wnv1_init_static(void)
{
VLC_INIT_STATIC_FROM_LENGTHS(&code_vlc, CODE_VLC_BITS, 16,
&code_tab[0][1], 2,
&code_tab[0][0], 2, 1,
-7, VLC_INIT_OUTPUT_LE, 1 << CODE_VLC_BITS);
VLC_INIT_STATIC_TABLE_FROM_LENGTHS(code_vlc, CODE_VLC_BITS, 16,
&code_tab[0][1], 2,
&code_tab[0][0], 2, 1,
-7, VLC_INIT_OUTPUT_LE);
}
static av_cold int decode_init(AVCodecContext *avctx)