Hi All Is it a possible case that an ogg file contains VP8 frames. I know ogg file generally contains vorbis, theora frames. Recently I came across an ogg file that contains OPUS frames. Is there any tool, that can take a webm file as input, and output an ogg file with preferably only video (no audio) frames. Please let me know. Thanks Austin -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/ogg-dev/attachments/20150723/49963306/attachment.htm
Opus in ogg is very common. VP8 in ogg is rare and unusual, but there is a standard for it. I believe you may be able to produce such a file using gstreamer, but few clients will be able to play it. On Wed, Jul 22, 2015, 7:47 PM Austin Einter <austin.einter at gmail.com> wrote:> Hi All > Is it a possible case that an ogg file contains VP8 frames. > I know ogg file generally contains vorbis, theora frames. > > Recently I came across an ogg file that contains OPUS frames. > > > Is there any tool, that can take a webm file as input, and output an ogg > file with preferably only video (no audio) frames. > > Please let me know. > > Thanks > Austin > _______________________________________________ > ogg-dev mailing list > ogg-dev at xiph.org > http://lists.xiph.org/mailman/listinfo/ogg-dev >-------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/ogg-dev/attachments/20150723/257c8540/attachment.htm
On 23 July 2015 at 03:47, Austin Einter <austin.einter at gmail.com> wrote:> Hi All > Is it a possible case that an ogg file contains VP8 frames. > I know ogg file generally contains vorbis, theora frames. > > Recently I came across an ogg file that contains OPUS frames. > > > Is there any tool, that can take a webm file as input, and output an ogg > file with preferably only video (no audio) frames. >oggz-rip included in liboggz can do this, extract a particular stream from an Ogg container. My currently installed version of 1.1.1 wont recognise Opus by content type, though it would be happy detecting Theora. Either stream could be extracted based on index or serialnumber. VLC I think can also copy a component from one container into another. It may remux in doing so. What are you ultimately trying to do? Ogg is a container and Opus in it is perfectly valid and probably going to be increasingly common. -- imalone http://ibmalone.blogspot.co.uk