On Sat, Nov 26, 2011 at 04:52:09PM +0000, Mans Rullgard wrote:
> Signed-off-by: Mans Rullgard <[email protected]>
> ---
>  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);\
> -- 

maybe set it to 0 for zero bits?
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