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Hi, I'm currently implementing OggSpots [1] support for VLC. In the "spec" it says that the granulerate is to be interpreted as in Ogg Skeleton so it should be possible to calculate `granulepos / granulerate` to get time. But it also says: The default granule rate for OggSpots is: 1/30 (30 frames per second resolution...

...the BBCD\0 > magic to change. Great. > OggMNG defines the following magics: > > char[8]: "\211PNG\r\n\032\n" png > char[8]: "\212MNG\r\n\032\n" mng > char[8]: "\213JNG\r\n\032\n" jng Ah, yes, I had forgotten about image encapsulation! Doesn't OggSpots also cover standard JPEG? Should we add it, too? > Are the 'Codecs Parameter' values from a different namespace from the > media-types? Do we define a mapping where there is one, e.g. vorbis > is audio/vorbis? If I understand your question correctly, the answer is yes and no....

..., I'm considering writing that myself. My question is specifically whether the ogg container format and existing ogg codecs are able to achieve this). Some ogg codecs that could be potentially be used: http://wiki.xiph.org/Kate http://wiki.xiph.org/OggMNG http://wiki.xiph.org/OggSpots Some examples of some proprietary screen codecs: http://wiki.multimedia.cx/index.php?title=VMware_Video http://wiki.multimedia.cx/index.php?title=Flash_screen_video Cheers, Greg. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pip...

...e this). If you write the extra code to write/read that custom data, and write overlays from them, then yes, sure, it's possible. > Some ogg codecs that could be potentially be used: > http://wiki.xiph.org/Kate > http://wiki.xiph.org/OggMNG > http://wiki.xiph.org/OggSpots In the case of Kate, you can store text and images, with position/sizes, so you should be able to do all you need there. The first 'raw' pass could write the metadata in your format of choice (eg, XML) as the event's text, and the post processing would generate more complex events fro...

On 5/24/08, Conrad Parker <conrad at metadecks.org> wrote: > The magic is not always char[8] -- it's an arbitrary number of > characters, and as far as I know there is no official limit. I was under the impression that 8 was the limit. Thus the extra white space JM adds on Speex and CELT magics. I may be wrong, though. > So it's 7 for Vorbis and Theora, 5 for FLAC So

Hi, I think we can start by defining an official field name at www.xiph.org/vorbis/doc/v-comment.html which is used as a file system link to an existing image file. I suggest the field name to be "PICTURE". What is ogg MNG? Is it a container format for PNG files which should be embedded in OGG files? If I understand correctly, the picture would be placed in a different logical stream