[FFmpeg-devel] [PATCH 1/4] ac3_fixed: fix out-of-bound read

[Christophe Gisquet]

Should also improve decoding, but actually doesn't...
---
 libavcodec/ac3dec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/ac3dec.c b/libavcodec/ac3dec.c
index 2f78d73..ce45186 100644
--- a/libavcodec/ac3dec.c
+++ b/libavcodec/ac3dec.c
@@ -872,7 +872,7 @@ static int decode_audio_block(AC3DecodeContext *s, int blk)
                 start_subband += start_subband - 7;
             end_subband    = get_bits(gbc, 3) + 5;
 #if USE_FIXED
-            s->spx_dst_end_freq = end_freq_inv_tab[end_subband];
+            s->spx_dst_end_freq = end_freq_inv_tab[end_subband-5];
 #endif
             if (end_subband   > 7)
                 end_subband   += end_subband   - 7;
-- 
1.9.2.msysgit.0