Hi All,
On the Xiph Wiki page at:
https://wiki.xiph.org/MIME_Types_and_File_Extensions
I added Opus to several of the sections, but
wasn't sure whether to add "Theora + Opus" to:
.ogv - video/ogg
.axv - video/annodex
As far as I can tell, according to the Opus
FAQ at:
https://wiki.xiph.org/OpusFAQ#Will_Opus_replace_Vorbis_in_video_files.3F
Theora + Opus is possible but not recommended.
Could somebody more knowledgeable than me
please review this.
Many thanks,
Martin
--
Martin J Leese
E-mail: martin.leese stanfordalumni.org
Web: http://members.tripod.com/martin_leese/
On 2015-01-08 12:17 PM, Martin Leese wrote:> I added Opus to several of the sections, but > wasn't sure whether to add "Theora + Opus" to: > .ogv - video/ogg > .axv - video/annodex.ogv is more correct there. .axv indicates a cmml text annotation track.> As far as I can tell, according to the Opus > FAQ at: > https://wiki.xiph.org/OpusFAQ#Will_Opus_replace_Vorbis_in_video_files.3F > > Theora + Opus is possible but not recommended.The faq isn't completely accurate, in that theora+opus will work in some players, and Youtube is happily serving vp9+vorbis in webm. One can try to use the 'codecs' extension to mime-types to specify, but that isn't universally supported either. -r
"Timothy B. Terriberry"wrote:> Subject: Re: [opus] opus Digest, Vol 72, Issue 4> Martin Leese wrote: >> Subject: Re: [opus] opus Digest, Vol 72, Issue 4 >> >> Is somebody talking to IANA about replacing >> RFC 5334 to add Opus to the MIME type >> audio/ogg? This needs to be done, and I note >> that draft-ietf-codec-oggopus-06 states: >> "11. IANA Considerations >> This document has no actions for IANA." > > No, I don't think anyone's approached IANA. If you think > draft-ietf-codec-oggopus should have some actions for them, can you send > a message to that effect to the codec list?(I have flipped the Subject line back to what it should have been; finger trouble on my part.) Er ... is this not the Opus codec list? I don't see any more appropriate Xiph list. Rather than me do anything, I will e-mail Silvia Pfeiffer with a heads-up. She knows what she is doing in this area. Regards, Martin -- Martin J Leese E-mail: martin.leese stanfordalumni.org Web: http://members.tripod.com/martin_leese/