[FFmpeg-devel] [PATCH] Revert "lavc/utils: Do not require dimensions for PNG."

[wm4]

On Mon, 14 Jul 2014 09:15:20 +0200
Reimar Döffinger <Reimar.Doeffinger at gmx.de> wrote:

> I actually think it worked with a lot of formats, not just PNG (which is not an argument for the hack though). This is also related to encoders which can in principle support resolution changes.

That is true, but even the MJPEG encoder, where I really can't find a
reason why it wouldn't support completely new parameters for separate
frames, at least used to crash when not setting the size, AFAIK.