Le Mon, Nov 03, 2025 at 03:35:05PM +0100, Kirill A. Korinsky a écrit :
> On Mon, 03 Nov 2025 14:46:35 +0100,
> David Goudou <david.goudou@gmail.com> wrote:
> > 
> > here's the error i encountered:
> > 
> > [Child 95605, MediaDecoderStateMachine #1]
> > WARNING: Decoder=d9fd0a9c000 Decode error:
> > NS_ERROR_DOM_MEDIA_METADATA_ERR (0x806e0006):
> > file /usr/obj/ports/firefox-144.0.2/firefox-144.0.2/dom/media/MediaDecoderStateMachineBase.cpp:168
> > 
> > example test video: https://justdavid.org/x3kja9d680zf1.mp4
> > 
> > youtube does play fine for me too
> > 
> 
> I can play this video via ffplay and chromium. In firefox it says:
> 
> > No video with supported format and MIME type found.
> 
> ... it looks like a firefox bug, so added landry@ as CC

if the same video works w/ ffmpeg 6 then that's a regression from the
ffmpeg update used by firefox at runtime :)

(no, i wont be able to look into the details now)