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authorMichael Niedermayer <michaelni@gmx.at>2011-10-12 05:33:52 +0200
committerMichael Niedermayer <michaelni@gmx.at>2011-10-12 05:40:57 +0200
commitb81f8880e010ccdef3604d9beb681d3c4c6a7bc0 (patch)
tree0a6534f8fd2d53e84f6b5716047e473b1598cd3d /libavcodec/h264_cavlc.c
parentb75d89a4784e027cec99236d58e9bd4121ec4309 (diff)
parent5f3fb599536dd5bceb1d45cb73cd0b0ce3e5560c (diff)
Merge remote-tracking branch 'qatar/master'
* qatar/master: (23 commits) fix AC3ENC_OPT_MODE_ON/OFF h264: fix HRD parameters parsing prores: implement multithreading. prores: idct sse2/sse4 optimizations. swscale: use aligned move for storage into temporary buffer. prores: extract idct into its own dspcontext and merge with put_pixels. h264: fix invalid shifts in init_cavlc_level_tab() intfloat_readwrite: fix signed addition overflows mov: do not misreport empty stts mov: cosmetics, fix for and if spacing id3v2: fix NULL pointer dereference mov: read album_artist atom mov: fix disc/track numbers and totals doc: fix references to obsolete presets directories for avconv/ffmpeg flashsv: return more meaningful error value flashsv: fix typo in av_log() message smacker: validate channels and sample format. smacker: check buffer size before reading output size smacker: validate number of channels smacker: Separate audio flags from sample rates in smacker demuxer. ... Conflicts: cmdutils.h doc/ffmpeg.texi libavcodec/Makefile libavcodec/motion_est_template.c libavformat/id3v2.c libavformat/mov.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/h264_cavlc.c')
-rw-r--r--libavcodec/h264_cavlc.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/libavcodec/h264_cavlc.c b/libavcodec/h264_cavlc.c
index d2b979fc2c..b0dc999132 100644
--- a/libavcodec/h264_cavlc.c
+++ b/libavcodec/h264_cavlc.c
@@ -298,17 +298,18 @@ static inline int pred_non_zero_count(H264Context *h, int n){
}
static av_cold void init_cavlc_level_tab(void){
- int suffix_length, mask;
+ int suffix_length;
unsigned int i;
for(suffix_length=0; suffix_length<7; suffix_length++){
for(i=0; i<(1<<LEVEL_TAB_BITS); i++){
int prefix= LEVEL_TAB_BITS - av_log2(2*i);
- int level_code= (prefix<<suffix_length) + (i>>(LEVEL_TAB_BITS-prefix-1-suffix_length)) - (1<<suffix_length);
- mask= -(level_code&1);
- level_code= (((2+level_code)>>1) ^ mask) - mask;
if(prefix + 1 + suffix_length <= LEVEL_TAB_BITS){
+ int level_code = (prefix << suffix_length) +
+ (i >> (av_log2(i) - suffix_length)) - (1 << suffix_length);
+ int mask = -(level_code&1);
+ level_code = (((2 + level_code) >> 1) ^ mask) - mask;
cavlc_level_tab[suffix_length][i][0]= level_code;
cavlc_level_tab[suffix_length][i][1]= prefix + 1 + suffix_length;
}else if(prefix + 1 <= LEVEL_TAB_BITS){