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Shayne Wissler <wissler at gmail.com> wrote: > I have a program that is given a random file and needs to determine > whether it is Vorbis or FLAC. For Vorbis, there are various places > where I can infer that I have a bad stream. But for FLAC, when I call > either FLAC__stream_decoder_process_u...

...l_end_of_metadata or FLAC__stream_decoder_process_single, it searches the entire file before giving up. I'd like it to stop searching as soon as it loses sync, or find some better way to detect the file type without scanning the whole file. Any tips on the best way to do that? Thanks, Shayne Wissler

...omly seek to a particular place in the stream (for starters, skipping forward or backward N seconds at a time). I found some useful information at http://www.xiph.org/ogg/doc/ogg-multiplex.html, but I was wondering if any sample code existed that implemented seeking? Thanks for any help. Shayne Wissler -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/theora/attachments/20090511/14fb5029/attachment.htm

...ing on liboggplay, and if so, is there any plan to support keyframe-based seeking? I found this, but seems to me that the feature ought to be part of liboggplay: http://pearce.org.nz/2009/05/video-seeking-improvements.html Is there a more appropriate list to post to regarding liboggplay? Shayne Wissler -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/theora/attachments/20090720/b16a7f50/attachment.htm

Don't say I didn't warn you: http://digitaldaily.allthingsd.com/20100520/googles-royalty-free-webm-video-may-not-be-royalty-free-for-long Don't get me wrong, I'll be as ecstatic as any of you to see Theora and VP8 succeed, I just see the patent system as far more insidious than I think many of you do. Shayne

Does the reason Theora is relatively safe from patent infringement lawsuit have more to do with it actually not being encumbered, or is it because its use is decentralized? For example, FreeType is not patent-free, nor is Linux, yet they succeed because on the one hand, they are open source, and those who maintain them do not guarantee anything regarding patents, it is up to each individual user

Shayne Wissler <wissler at gmail.com> wrote: > On Tue, Oct 6, 2009 at 1:57 PM, Martin Leese > <martin.leese at stanfordalumni.org> wrote: ... >> For Ogg Vorbis and Ogg FLAC, see: >> http://wiki.xiph.org/index.php/MIMETypesCodecs#Codecs_Parameter > > Isn't this meta informa...

...and what I am doing wrong would be much appreciated. I have tried .Call with conversion SEXP to double with REAL(a)/REAL(b) with the same results (the entry first entry of a has a different number, but is huge as well). I am quite astonished with the results I am getting. Thanks and regards, Lars Wissler

Hi, first post on this list. I run a small game development company specializing in casual Windows/Mac games. We've been using Theora for video playback inside our engine for a while, but we always run into performance issues. I've tracked them down to two parts : YUV to RGB decoding (done via software) and uploading the new pixel data to the video card as a texture. For the YUV to RGB