Aℓex Converse <[email protected]> writes:

> From ae62aa2fca3b2cf45a98dc2f9777065bcb452797 Mon Sep 17 00:00:00 2001
> From: Alex Converse <[email protected]>
> Date: Tue, 26 Apr 2011 09:08:26 -0700
> Subject: [PATCH 3/4] bitstream: Properly promote av_reverse values before 
> shifting.
> MIME-Version: 1.0
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>
> ---
>  libavcodec/bitstream.c |    8 ++++----
>  1 files changed, 4 insertions(+), 4 deletions(-)
>
> --------------1
> Content-Type: text/x-patch; 
> name="0003-bitstream-Properly-promote-av_reverse-values-before-.patch"
> Content-Transfer-Encoding: 8bit
> Content-Disposition: attachment; 
> filename="0003-bitstream-Properly-promote-av_reverse-values-before-.patch"
>
> diff --git a/libavcodec/bitstream.c b/libavcodec/bitstream.c
> index 329ec95..14c3eaa 100644
> --- a/libavcodec/bitstream.c
> +++ b/libavcodec/bitstream.c
> @@ -118,10 +118,10 @@ static int alloc_table(VLC *vlc, int size, int 
> use_static)
>  }
>  
>  static av_always_inline uint32_t bitswap_32(uint32_t x) {
> -    return av_reverse[x&0xFF]<<24
> -         | av_reverse[(x>>8)&0xFF]<<16
> -         | av_reverse[(x>>16)&0xFF]<<8
> -         | av_reverse[x>>24];
> +    return (uint32_t)av_reverse[x&0xFF]<<24
> +         | (uint32_t)av_reverse[(x>>8)&0xFF]<<16
> +         | (uint32_t)av_reverse[(x>>16)&0xFF]<<8
> +         | (uint32_t)av_reverse[x>>24];
>  }

The integer promotions already do this.

-- 
Måns Rullgård
[email protected]
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