[vlc-devel] libswscale logo overlay crash on Win32

[xxcv]

Jean-Baptiste Kempf wrote:
> Hello,
>
> On Fri, Apr 03, 2009 at 06:25:53PM -0430, Tom Maneiro wrote :
>   
>> I've just updated to the latest VLC 0.9.9, just to find that it
>> crashes when i try to use a logo overlay over the video. The picture
>> used was a transparent, alpha-channel PNG, and at first i thinked in
>> that old libpng-related bug on early 0.9.x releases... so i tried
>> switching libpng_plugin.dll with the one from 0.9.8a. No luck! The
>> crash was still there.
>>     
>
> I did update libswscale with the rest of FFmpeg for 0.9.9.
>
> I didn't find any crash in avcodec (contrary to the previous contribs),
> but I didn't check swscale.
>
>   
>> - using libswscale_plugin.dll from previous VLC release (0.9.8a) WORKS
>> (no crashes, logo overlay works as expected)
>>     
> So the regression is indeed in the newer swscale version.
>
>   
>> - using libswscale_plugin.dll from latest VLC nightly (03/04/2009)
>> FAILS (same memcpy crash)
>>     
>
>   Expected. It uses the same swscale version.
>
>   Does it happen with other filters?
>
> Best Regards,
>
>   
Problem with ffmpeg see https://trac.videolan.org/vlc/ticket/2585#comment:2
Unlikely it will be fixed soon

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