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authorReimar Döffinger <Reimar.Doeffinger@gmx.de>2014-08-30 18:17:39 +0200
committerReimar Döffinger <Reimar.Doeffinger@gmx.de>2014-09-06 20:59:20 +0200
commit0f1281b2b8ac6f7d2a0b8d18f6fbba9ed7a1bd08 (patch)
tree042e3c727144cd56221ce516ca6a351295e24f3d /libavcodec/cabac.c
parent87c7fb2b215f306c4b2db42b71d41a7b340e6b7f (diff)
cabac: initialize all of ff_h264_cabac_tables programmatically.
Moves it from .data to .bss, slightly reducing binary size. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Diffstat (limited to 'libavcodec/cabac.c')
-rw-r--r--libavcodec/cabac.c26
1 files changed, 4 insertions, 22 deletions
diff --git a/libavcodec/cabac.c b/libavcodec/cabac.c
index 65579d8d3b..803c81c216 100644
--- a/libavcodec/cabac.c
+++ b/libavcodec/cabac.c
@@ -32,28 +32,7 @@
#include "cabac.h"
#include "cabac_functions.h"
-uint8_t ff_h264_cabac_tables[512 + 4*2*64 + 4*64 + 63] = {
- 9,8,7,7,6,6,6,6,5,5,5,5,5,5,5,5,
- 4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,
- 3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
- 3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
- 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
- 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
- 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
- 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
- 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
- 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
- 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
- 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
- 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
-};
+uint8_t ff_h264_cabac_tables[512 + 4*2*64 + 4*64 + 63];
static const uint8_t lps_range[64][4]= {
{128,176,208,240}, {128,167,197,227}, {128,158,187,216}, {123,150,178,205},
@@ -143,6 +122,9 @@ void ff_init_cabac_states(void)
if (initialized)
return;
+ for (i = 0; i < 512; i++)
+ ff_h264_norm_shift[i] = i ? 8 - av_log2(i) : 9;
+
for(i=0; i<64; i++){
for(j=0; j<4; j++){ //FIXME check if this is worth the 1 shift we save
ff_h264_lps_range[j*2*64+2*i+0]=