Comments on: Ogg timestamps explored http://hardwarebug.org/2008/11/17/ogg-timestamps-explored/ Everything is broken Mon, 30 Aug 2010 09:33:38 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: Mans http://hardwarebug.org/2008/11/17/ogg-timestamps-explored/comment-page-1/#comment-6 Mans Mon, 01 Dec 2008 22:01:26 +0000 http://hardwarebug.org/?p=46#comment-6 You are correct about the non-Xiph origins of some of the codecs. However, Dirac is to my knowledge the only codec with an Ogg mapping not linked from the xiph.org web page. You are correct about the non-Xiph origins of some of the codecs. However, Dirac is to my knowledge the only codec with an Ogg mapping not linked from the xiph.org web page.

]]> By: Silvia Pfeiffer http://hardwarebug.org/2008/11/17/ogg-timestamps-explored/comment-page-1/#comment-5 Silvia Pfeiffer Mon, 01 Dec 2008 10:03:39 +0000 http://hardwarebug.org/?p=46#comment-5 Criticism of Ogg's timestamping approach is all well and fair - it has been developed with Vorbis in mind only and the other codecs and their respective requirements came later, thus requiring e.g. the complex mappings for Theora and Dirac. However, I'd like to clarify some history that is mentioned on the side here: * Dirac is not the only codec developed outside Xiph - every codec apart from Vorbis was originally developed outside Xiph and later created a Ogg mapping and joined Xiph. FLAC indeed continues to have a life of its own with .flac files not encapsulated in Ogg and Speex is being used more in VoIP applications without the Ogg encapsulation. * OGM is not really "embraced" by Xiph.Org - the oggds code after having been donated by Tobias is in the Xiph svn repository, but there is no maintainer. In fact, for windows directshow filter support, the oggcodecs code is now the preferred code, and for srt in Ogg Theora ... well, there'll be something new soon. I suggest you get involved with the xiph community at ogg-dev@lists.xiph.org to express your problems and help fix some of the issues you mentioned. It's an open source community after all, so open for input. :-) Criticism of Ogg’s timestamping approach is all well and fair – it has been developed with Vorbis in mind only and the other codecs and their respective requirements came later, thus requiring e.g. the complex mappings for Theora and Dirac.

However, I’d like to clarify some history that is mentioned on the side here:

* Dirac is not the only codec developed outside Xiph – every codec apart from Vorbis was originally developed outside Xiph and later created a Ogg mapping and joined Xiph. FLAC indeed continues to have a life of its own with .flac files not encapsulated in Ogg and Speex is being used more in VoIP applications without the Ogg encapsulation.

* OGM is not really “embraced” by Xiph.Org – the oggds code after having been donated by Tobias is in the Xiph svn repository, but there is no maintainer. In fact, for windows directshow filter support, the oggcodecs code is now the preferred code, and for srt in Ogg Theora … well, there’ll be something new soon.

I suggest you get involved with the xiph community at ogg-dev@lists.xiph.org to express your problems and help fix some of the issues you mentioned. It’s an open source community after all, so open for input. :-)

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