Module: libav
Branch: master
Commit: 51a16077da2a58d85a10dcb1259756ad6099b5d5

Author:    Mans Rullgard <m...@mansr.com>
Committer: Mans Rullgard <m...@mansr.com>
Date:      Sat Nov 26 15:30:34 2011 +0000

svq1dec: avoid undefined get_bits(0) call

Signed-off-by: Mans Rullgard <m...@mansr.com>

---

 libavcodec/svq1dec.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/libavcodec/svq1dec.c b/libavcodec/svq1dec.c
index 8569615..7eb6e60 100644
--- a/libavcodec/svq1dec.c
+++ b/libavcodec/svq1dec.c
@@ -195,7 +195,8 @@ static const uint8_t string_table[256] = {
 
 #define SVQ1_CALC_CODEBOOK_ENTRIES(cbook)\
       codebook = (const uint32_t *) cbook[level];\
-      bit_cache = get_bits (bitbuf, 4*stages);\
+      if (stages > 0)\
+        bit_cache = get_bits (bitbuf, 4*stages);\
       /* calculate codebook entries for this vector */\
       for (j=0; j < stages; j++) {\
         entries[j] = (((bit_cache >> (4*(stages - j - 1))) & 0xF) + 16*j) << 
(level + 1);\

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