[Matroska-devel] FFV1/MKV IETF Session followup
giles at thaumas.net
Sat Jul 25 00:08:00 CEST 2015
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On 24/07/15 06:36 AM, Sebastian G. <bastik> wrote:
> How does one play a Matroska file with Firefox? It supports WebM
> which is a subset of Matroska, but I am unable to play a Matroska
> file that contains an h.264 encoded video, which is supported by
> Firefox as well.
Firefox only supports the vp8, vp9, vorbis, and opus codecs in the
WebM variant of Matroska. To play h.264 you have to use the mp4 containe
In Nightly and Developer Edition builds you can remux Matroska to mp4
Hopefully that will be available in release builds in a few months.
This API is available in Chrome, Safari, and Microsoft Edge as well.
As you say, WebM is a subset of Matroska. There's value in having a
separately-labelled container with only free-to-implement codecs. I'd
much rather people put Opus alongside h.264 in mp4 than in WebM.
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