[Libav-user] Fill AVFrame from a Cairo surface

[Colossus]

On Mon, 16 Aug 2021 at 14:57, Nicolas George <george at nsup.org> wrote:

> You must check the return code of all the functions that can fail. If
> you do not, your code is obviously invalid. Start by fixing that before
> asking for more help.
>
>
I told you I did and avcodec_send_frame() is the one that throws that error.

It would be useful a document in the documentation explaining how to fix
those
errors. I have allocated the frame so ffmpeg should set the linesize by
itself but
in my case it doesn't. Why?
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