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Re: Firefox 115.5.0esr(64-bit) can't show mp4



On Sat, 2023-12-02 at 00:48 -0800, Van Snyder wrote:
> On Sat, 2023-12-02 at 07:00 +0800, Bret Busby wrote:
> > On 2/12/23 06:10, Van Snyder wrote:
> > > When I try to view a mp4 video in Firefox 115.5.0esr(64-bit) on
> > > Debian 
> > > GNU/Linux 10 (buster), it puts up a sad-face window saying "No
> > > video 
> > > with supported format and MIME type found." It doesn't offer to
> > > download 
> > > the file, or play it with an external application.
> > > 
> > > ffmpeg is installed and up-to-date.
> > > 
> > > Can it be made to work?
> > > 
> > Perhaps, if you specified the URL of the file, it might be a step on
> > the 
> > way t6o describing the problem...
> 
> http://vandyke.mynetgear.com/AuraMLS_SH2009.mp4
> 
> The same video is available as avi, and that works fine with Firefox by
> launching an external viewer such as vlc or dragon. I would expect
> Firefox to offer to download the file or choose a viewer instead of the
> sad-face window.
> 
> > 
> > ....
> > Bret Busby
> > Armadale
> > Western Australia
> > (UTC+0800)
> > .................
> > 
> 

Hi,

The problem here seems to stem from the video being 'Simple Profile' for MP4.

https://en.wikipedia.org/wiki/MPEG-4_Part_2

Some further testing maybe in order and an issue submitting if this is widespread.

Regards

Phil

-- 
Playing the game for the games sake.

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