[FFmpeg-devel] [PATCH] warning fix for libswscale/swscale-example.c

[Benoit Fouet]

On 03/20/2009 10:46 AM, Benoit Fouet wrote:
> On 03/19/2009 12:06 PM, Benoit Fouet wrote:
>   
>> Hi,
>>
>> On 03/19/2009 11:23 AM, Diego Biurrun wrote:
>>   
>>     
>>> Here is a patch to fix or work around the following warnings:
>>>
>>> libswscale/swscale-example.c: In function 'main':
>>> libswscale/swscale-example.c:60: warning: 'outContext' may be used uninitialized in this function
>>> libswscale/swscale-example.c:60: warning: 'dstContext' may be used uninitialized in this function
>>> libswscale/swscale-example.c:60: warning: 'srcContext' may be used uninitialized in this function
>>>
>>> Index: libswscale/swscale-example.c
>>> ===================================================================
>>> --- libswscale/swscale-example.c    (revision 28997)
>>> +++ libswscale/swscale-example.c    (working copy)
>>> @@ -59,6 +59,7 @@
>>>      uint64_t ssdY, ssdU, ssdV;
>>>      struct SwsContext *srcContext, *dstContext, *outContext;
>>>      int res;
>>> +    srcContext = dstContext = outContext = NULL;
>>>
>>>     
>>>       
>> this could be merged with the declarations.
>> but this is definitely needed, indeed.
>>
>> BTW, even if not mentionned as a gcc warning, I think src, dst and out
>> should be initialized too.
>>
>>   
>>     
>
> as in the attached patch, or they could be freed while still uninitialized.
>
>   

updated with alpha support.

Ben

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