Ian Nartowicz wrote: > I've developed a function for updating Flac metadata blocks inside Ogg files. > Obviously it is desirable to use padding so that most edits don't require > rewriting massive files. > > Although the flac encoder creates a padding metadata block by default in Ogg > Flac files, this appears to be useless. When packets on an Ogg page change > size, the page size may change by as different amount, hence it is not > possible > to offset changes in the size of one packet by changes in the size of a > different packet. > > I have attempted to use standard Ogg packet padding (ie. a packet length > longer > than the actual metadata block, filled with zeroes for safety) but libFLAC > does > not understand this entirely legal format (actually it seems OK with it so > long as it is the last metadata page). I think it ignores the packet length as > declared by Ogg and just reads the bytes listed in the metablock header. > > Further, libFLAC doesn't seem to understand when multiple metadata block > packets appear on the same page, aother legal arrangement, indeed the one that > is implied by the Ogg Flac mapping specification. > > What can be done to support this format?
First step would be providing a minimal program that shows that problem. Erik -- ---------------------------------------------------------------------- Erik de Castro Lopo http://www.mega-nerd.com/ _______________________________________________ flac-dev mailing list flac-dev@xiph.org http://lists.xiph.org/mailman/listinfo/flac-dev
