[FFmpeg-cvslog] avcodec/cabac: remove h264_lps_state

Michael Niedermayer git at videolan.org
Wed Sep 25 16:43:18 CEST 2013


ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Wed Sep 25 16:30:25 2013 +0200| [ab6fbe820628870be34873c730bc6f8fe5757705] | committer: Michael Niedermayer

avcodec/cabac: remove h264_lps_state

The only use case of it was the selftest code, and there the slightly more
complex indexing that is needed after its removial doesnt matter.

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ab6fbe820628870be34873c730bc6f8fe5757705
---

 libavcodec/cabac.c |    8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/libavcodec/cabac.c b/libavcodec/cabac.c
index 0c02d6c..29b188b 100644
--- a/libavcodec/cabac.c
+++ b/libavcodec/cabac.c
@@ -73,8 +73,6 @@ static const uint8_t lps_range[64][4]= {
 {  6,  8,  9, 11}, {  6,  7,  9, 10}, {  6,  7,  8,  9}, {  2,  2,  2,  2},
 };
 
-static uint8_t h264_lps_state[2*64];
-
 static const uint8_t mps_state[64]= {
   1, 2, 3, 4, 5, 6, 7, 8,
   9,10,11,12,13,14,15,16,
@@ -153,14 +151,10 @@ void ff_init_cabac_states(void)
         ff_h264_mlps_state[128 + 2 * i + 1] = 2 * mps_state[i] + 1;
 
         if( i ){
-            h264_lps_state[2*i+0]=
             ff_h264_mlps_state[128-2*i-1]= 2*lps_state[i]+0;
-            h264_lps_state[2*i+1]=
             ff_h264_mlps_state[128-2*i-2]= 2*lps_state[i]+1;
         }else{
-            h264_lps_state[2*i+0]=
             ff_h264_mlps_state[128-2*i-1]= 1;
-            h264_lps_state[2*i+1]=
             ff_h264_mlps_state[128-2*i-2]= 0;
         }
     }
@@ -211,7 +205,7 @@ static void put_cabac(CABACContext *c, uint8_t * const state, int bit){
     }else{
         c->low += c->range - RangeLPS;
         c->range = RangeLPS;
-        *state= h264_lps_state[*state];
+        *state= ff_h264_mlps_state[127 - *state];
     }
 
     renorm_cabac_encoder(c);



More information about the ffmpeg-cvslog mailing list