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dv: increase VLC reading bits to 10

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This also requires a bump in the table size of bit patterns to 1664.
From 356 to 348 cycles.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Christophe Gisquet
2014-10-14 02:02:36 +02:00
committed by Michael Niedermayer
parent 280da99a8f
commit 4fa772acbb
2 changed files with 4 additions and 4 deletions
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4
libavcodec/dv.c
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@@ -50,7 +50,7 @@
#include "simple_idct.h" #include "simple_idct.h"
/* XXX: also include quantization */ /* XXX: also include quantization */
RL_VLC_ELEM ff_dv_rl_vlc[1184]; RL_VLC_ELEM ff_dv_rl_vlc[1664];
static inline void dv_calc_mb_coordinates(const AVDVProfile *d, int chan, static inline void dv_calc_mb_coordinates(const AVDVProfile *d, int chan,
int seq, int slot, uint16_t *tbl) int seq, int slot, uint16_t *tbl)
@@ -243,7 +243,7 @@ av_cold int ff_dvvideo_init(AVCodecContext *avctx)
* to accelerate the parsing of partial codes */ * to accelerate the parsing of partial codes */
init_vlc(&dv_vlc, TEX_VLC_BITS, j, new_dv_vlc_len, init_vlc(&dv_vlc, TEX_VLC_BITS, j, new_dv_vlc_len,
1, 1, new_dv_vlc_bits, 2, 2, 0); 1, 1, new_dv_vlc_bits, 2, 2, 0);
av_assert1(dv_vlc.table_size == 1184); av_assert1(dv_vlc.table_size == 1664);
for (i = 0; i < dv_vlc.table_size; i++) { for (i = 0; i < dv_vlc.table_size; i++) {
int code = dv_vlc.table[i][0]; int code = dv_vlc.table[i][0];

4
libavcodec/dv.h
View File

@@ -90,9 +90,9 @@ enum dv_pack_type {
*/ */
#define DV_MAX_BPM 8 #define DV_MAX_BPM 8
#define TEX_VLC_BITS 9 #define TEX_VLC_BITS 10
extern RL_VLC_ELEM ff_dv_rl_vlc[1184]; extern RL_VLC_ELEM ff_dv_rl_vlc[1664];
int ff_dv_init_dynamic_tables(DVVideoContext *s, const AVDVProfile *d); int ff_dv_init_dynamic_tables(DVVideoContext *s, const AVDVProfile *d);