[FFmpeg-devel] [PATCH] swscale: check flags instead of nb_components to find if pixel format have alpha

[Paul B Mahol]

On 1/24/13, Stefano Sabatini <stefasab at gmail.com> wrote:
> On date Thursday 2013-01-24 17:34:06 +0000, Paul B Mahol encoded:
>> Signed-off-by: Paul B Mahol <onemda at gmail.com>
>> ---
>>  libswscale/swscale_internal.h | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/libswscale/swscale_internal.h
>> b/libswscale/swscale_internal.h
>> index d1f9539..4f4b953 100644
>> --- a/libswscale/swscale_internal.h
>> +++ b/libswscale/swscale_internal.h
>> @@ -688,7 +688,7 @@ static av_always_inline int isALPHA(enum AVPixelFormat
>> pix_fmt)
>>  {
>>      const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(pix_fmt);
>>      av_assert0(desc);
>> -    return desc->nb_components == 2 || desc->nb_components == 4;
>> +    return desc->flags & PIX_FMT_ALPHA;
>
> Should be OK if FATE is happy.

applied

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