search for: x80theora

2008/5/29 Ralph Giles <giles at xiph.org>: > On 28-May-08, at 6:20 PM, Conrad Parker wrote: > >> /* TODO: this should check against 42 for the relevant version numbers */ >> if (op->bytes < 41) return 0; > > I gather this means the USE_THEORA_PRE_ALPHA_3_FORMAT #if should instead be > based on the length of the header packet. I'm not sure why you're

...somewhere. The draft is located in SVN[1], but for your convenience I'm posting it here: Codec Identifier | Codecs Parameter ----------------------------------------------------------- char[8]: '\x01vorbis' | vorbis char[8]: '\x80theora' | theora char[8]: 'Speex ' | speex char[8]: '\177FLAC' | flac char[8]: 'BBCD\0' | dirac char[8]: 'OggMIDI\0' | midi char[8]: 'CMML\0\0\0\0' | cmml char[8]:...

...For reference, this is how the table looks right now: > > Codec Identifier | Codecs Parameter > ----------------------------------------------------------- > char[5]: 'BBCD\0' | dirac > char[5]: '\177FLAC' | flac > char[7]: '\x80theora' | theora > char[7]: '\x01vorbis' | vorbis > char[8]: 'Speex ' | speex > char[8]: 'OggMIDI\0' | midi > char[8]: 'CMML\0\0\0\0' | cmml > char[8]: '\211PNG\r\n\032\n' | png > char[8]: '\212MN...

...but for your convenience I'm posting it here: > > Codec Identifier | Codecs Parameter > ----------------------------------------------------------- > char[8]: '\x01vorbis' | vorbis > char[8]: '\x80theora' | theora > char[8]: 'Speex ' | speex > char[8]: '\177FLAC' | flac > char[8]: 'BBCD\0' | dirac > char[8]: 'OggMIDI\0' | midi > char[8]: &...

...For reference, this is how the table looks right now: > > Codec Identifier | Codecs Parameter > ----------------------------------------------------------- > char[5]: 'BBCD\0' | dirac > char[5]: '\177FLAC' | flac > char[7]: '\x80theora' | theora > char[7]: '\x01vorbis' | vorbis > char[8]: 'Speex ' | speex > char[8]: 'OggMIDI\0' | midi > char[8]: 'CMML\0\0\0\0' | cmml > char[8]: '\211PNG\r\n\032\n' | png > char[8]: '\212MN...

...aracters, 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 char[7]: '\x01vorbis', char[7]: '\x80theora' and char[5]: '\177FLAC'? > immediately after '\177FLAC' is a version field, which is not part of the > codec ident string but is within the first 8 bytes. I don't think that interferes with anything. We are talking about the essential part needed to be detected by...