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Code Issues Releases Activity

Make rv40 decoder use new static VLC initialization method

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Originally committed as revision 18634 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Kostya Shishkov 2009-04-20 17:13:21 +00:00
parent 4003971717
commit 0a044f0f06
1 changed files with 29 additions and 7 deletions
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36
libavcodec/rv40.c
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@ -37,38 +37,60 @@ static VLC aic_top_vlc;
static VLC aic_mode1_vlc[AIC_MODE1_NUM], aic_mode2_vlc[AIC_MODE2_NUM];
static VLC ptype_vlc[NUM_PTYPE_VLCS], btype_vlc[NUM_BTYPE_VLCS];
static const int16_t mode2_offs[] = {
0, 614, 1222, 1794, 2410, 3014, 3586, 4202, 4792, 5382, 5966, 6542,
7138, 7716, 8292, 8864, 9444, 10030, 10642, 11212, 11814
};
/**
* Initialize all tables.
*/
static av_cold void rv40_init_tables(void)
{
int i;
static VLC_TYPE aic_table[1 << AIC_TOP_BITS][2];
static VLC_TYPE aic_mode1_table[AIC_MODE1_NUM << AIC_MODE1_BITS][2];
static VLC_TYPE aic_mode2_table[11814][2];
static VLC_TYPE ptype_table[NUM_PTYPE_VLCS << PTYPE_VLC_BITS][2];
static VLC_TYPE btype_table[NUM_BTYPE_VLCS << BTYPE_VLC_BITS][2];
aic_top_vlc.table = aic_table;
aic_top_vlc.table_allocated = 1 << AIC_TOP_BITS;
init_vlc(&aic_top_vlc, AIC_TOP_BITS, AIC_TOP_SIZE,
rv40_aic_top_vlc_bits, 1, 1,
rv40_aic_top_vlc_codes, 1, 1, INIT_VLC_USE_STATIC);
rv40_aic_top_vlc_codes, 1, 1, INIT_VLC_USE_NEW_STATIC);
for(i = 0; i < AIC_MODE1_NUM; i++){
// Every tenth VLC table is empty
if((i % 10) == 9) continue;
aic_mode1_vlc[i].table = &aic_mode1_table[i << AIC_MODE1_BITS];
aic_mode1_vlc[i].table_allocated = 1 << AIC_MODE1_BITS;
init_vlc(&aic_mode1_vlc[i], AIC_MODE1_BITS, AIC_MODE1_SIZE,
aic_mode1_vlc_bits[i], 1, 1,
aic_mode1_vlc_codes[i], 1, 1, INIT_VLC_USE_STATIC);
aic_mode1_vlc_codes[i], 1, 1, INIT_VLC_USE_NEW_STATIC);
}
for(i = 0; i < AIC_MODE2_NUM; i++){
aic_mode2_vlc[i].table = &aic_mode2_table[mode2_offs[i]];
aic_mode2_vlc[i].table_allocated = mode2_offs[i + 1] - mode2_offs[i];
init_vlc(&aic_mode2_vlc[i], AIC_MODE2_BITS, AIC_MODE2_SIZE,
aic_mode2_vlc_bits[i], 1, 1,
aic_mode2_vlc_codes[i], 2, 2, INIT_VLC_USE_STATIC);
aic_mode2_vlc_codes[i], 2, 2, INIT_VLC_USE_NEW_STATIC);
}
for(i = 0; i < NUM_PTYPE_VLCS; i++)
for(i = 0; i < NUM_PTYPE_VLCS; i++){
ptype_vlc[i].table = &ptype_table[i << PTYPE_VLC_BITS];
ptype_vlc[i].table_allocated = 1 << PTYPE_VLC_BITS;
init_vlc_sparse(&ptype_vlc[i], PTYPE_VLC_BITS, PTYPE_VLC_SIZE,
ptype_vlc_bits[i], 1, 1,
ptype_vlc_codes[i], 1, 1,
ptype_vlc_syms, 1, 1, INIT_VLC_USE_STATIC);
for(i = 0; i < NUM_BTYPE_VLCS; i++)
ptype_vlc_syms, 1, 1, INIT_VLC_USE_NEW_STATIC);
}
for(i = 0; i < NUM_BTYPE_VLCS; i++){
btype_vlc[i].table = &btype_table[i << BTYPE_VLC_BITS];
btype_vlc[i].table_allocated = 1 << BTYPE_VLC_BITS;
init_vlc_sparse(&btype_vlc[i], BTYPE_VLC_BITS, BTYPE_VLC_SIZE,
btype_vlc_bits[i], 1, 1,
btype_vlc_codes[i], 1, 1,
btype_vlc_syms, 1, 1, INIT_VLC_USE_STATIC);
btype_vlc_syms, 1, 1, INIT_VLC_USE_NEW_STATIC);
}
}
/**