On 8 October 2013 13:01, Novák, Attila <[email protected]> wrote:
>
> Hi,
>
> I have a Leadtek capture card that provides DirectShow output. I managed to 
> record video in multiple resolutions using the command line ffmpeg tool by 
> providing the "-s widthXheight" option. Unfortunately I could not replicate 
> the results from code: it always captures with the default 320x200 
> resolution. I tried calling av_opt_set_image_size() & av_opt_set() with the 
> "image_size" option on the input format context struct before & after opening 
> the codec, but it didn't work.
> I couldn't find any documentation whatsoever on this feature. Does anyone 
> know how this supposed to work?
>
> (I'm on WinXP with Visual Studio 2010, the card is a Leadtek WinFast VC100)
>
> Thank you in advance,
> -Attila

And of course in the meantime I found a similar question in the archives. D'oh.
If anyone else is interested:
http://ffmpeg.org/pipermail/libav-user/2012-November/003041.html

-Attila
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