On Fri, Nov 17, 2017 at 09:26:51AM +0100, Vaclav Masin wrote:
> Hello,
>
> as the title suggests - mp4 videos don't seem to play for me since FF 57. See
> this test site for an example:
> https://www.quirksmode.org/html5/tests/video.html - the other two videos play
> just fine but not the first one. Used to work in FF 56 and before without any
> issues.
>
> I get this message in the dev console: 'Specified “type” attribute of
> “video/mp4” is not supported. Load of media resource
> ../videos/big_buck_bunny.mp4 failed' or on some other sites messages like
> this: 'The video on this page can’t be played. Your system may not have the
> required video codecs for: video/mp4;codecs="avc1.4d400d mp4a.40.2" ... ...'.
>
> I tried upgrading to ffmpeg 3.4 as per the dev version of The BLFS Book, also
> a couple of the decoding libraries I could think of like libx264 and libx265
> but so far no luck.
>
Well, after saying it worked for me I've now built a new system from
last week's svn books (everything was current, except that I held
off on icu because that has given problems in the past.). This is
on my intel i3 SandyBridge with intel video.
For that H264/MP4 link I get a sad face in the player on the page,
with most of the first line of an error message
No video with supported format and MIME Type found.
(cut off in the base lines of e.g. 'a' 'E' and wrapped after 'MIME'
because the player bar overlays that with a position/duration of
0:00 / 0:00, but message is all readable if I fullscreen in the
player)
Most online mp4 videos play in firefox on this new system.
Looking through the mp4 files on my local system, all seem to play
in firefox, except for one it rejects as "corrupt" although that one
plays ok in xine-ui.
Tentatively, I wonder if this is some sort of xdg problem ? But
without a local file which shows the problem, that is just
guesswork. Comparing the files in /usr/share/mime/video/ from an
8.1 build I see some changed or added comments for a few languages,
but no missing files.
Hmm, looking at that webpage, the type is "video/mp4", and on my
desktop that is set for parole. But as to why firefox now cannot
play it, no idea.
ĸen
--
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boots with stiletto heels for such a barefaced truth.
- Unseen Academicals
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