similar to: Detecting FLAC file type

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 information used in e.g. email and HTML? I don't think > it will help vet a standalone

Hello, 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_until_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

Is anyone working 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...

Hello, I've written a program loosely based on libtheora-1.0/examples/player_example.c, I would like to add the ability to randomly 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?

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

Erik de Castro Lopo <mle+xiph@mega-nerd.com> wrote: > Martin Leese wrote: > > So what is "OggPCM"? I started this thread > > because I was puzzled why someone was > > changing a draft instead of the document > > itself. > > The original OggPCM was started by a person who really didn't > lnow what they were doing and wouldn't listen to

I have been tidying up the VorbisComment page in the XiphWiki. The problem with it was that it was a mixture of proposals and discussion of those proposals. This made it difficult for implementers to see what to implement. The problem section is: http://wiki.xiph.org/index.php/VorbisComment#New_ENCODER_field_name_proposal This is a mess, and all I could do was add attributions to the

On 10/25/18, Rodger Combs wrote: > >> On Oct 25, 2018, at 12:47, Martin Leese <martin.leese at stanfordalumni.org> >> wrote: ... >> An alternative approach is to only define >> popular layouts. For more obscure layouts, >> such as 2.1 and Mid/Side, assume that the >> person doing the encoding knew what they >> put in, and so knows what will come

Brendan Bolles wrote: > Hey everyone, according to Wikipedia's 4-year-old information, there is no > standard for putting metadata into an Ogg file. True. > That metadata must be > included in the codec. More generally, in a stream in the Ogg file. Codecs are streams, but so are things like Ogg Skeleton. Information about Metadata has been collected together in the Xiph Wiki

On 7/23/13, Silvia Pfeiffer <silviapfeiffer1 at gmail.com> wrote: > On 23 Jul 2013 15:17, "Martin Leese" <martin.leese at stanfordalumni.org> > wrote: ... >> Information about Metadata >> has been collected together in the Xiph Wiki >> at: >> https://wiki.xiph.org/Metadata > > That page is a bit outdated. It has CMML in it which we

"Kurosawa, Taku" wrote: > Hi Martijn, > > Sorry for the late reply again, > The application we are preparing this time is not exactly similar to > Replaygain. > > Replaygain as we understand is something which normalize the loudness at > content provider side, but our application takes different approach. It is > designed to normalize the loudness at player

Rodger Combs wrote: > I've run into some issues using Opus with source files in channel layouts > other than the default 8. For instance, 2.1 isn't supported, so I have to > either downconvert to 2.0 or upconvert to 5.1 (which usually involves adding > empty channels, which prevents the playback device from upconverting to the > native layout). > To address this,

I have been tidying up bits of the Wiki. This one is not clear cut, so I decided to seek advice. Also, I wasn't sure where to post this question, so defaulted to ogg-dev. Should Speex and CMML be removed from the Wiki Sidebar at: https://wiki.xiph.org/MediaWiki:Sidebar ? Many thanks, Martin -- Martin J Leese E-mail: martin.leese stanfordalumni.org Web:

Hi, I have posted this three times to the flac-dev, vorbis-dev, and ogg-dev mailing lists. I wanted to see what code there was currently to support Ambisonics. So I downloaded the code from the xiph download page for libogg-1.1.3, libvorbis-1.1.2, vorbis-tools-1.1.1 and flac-1.1.4, but wasn't able to find anything. If it exists then I missed it, so could somebody please point me to it.

Not sure if this belongs here or in flac-dev. I am subscribed to both, so flop it over if fits better over there. Looking at the Changelog for FLAC 1.2.1 (17-Sep-2007), it says: "With the new --keep-foreign-metadata in flac, non-audio RIFF and AIFF chunks can be stored in FLAC files and recreated when decoding." Where can I find more detail on what is a

Brian Willoughby <brianw at sounds.wa.com> wrote: > Hello all, > > Is anyone here potentially up to the task of adding support for CAF > (the CoreAudio Format) into the flac command-line? ... > I've already made some recordings > that are so long that they cannot be uncompressed from FLAC to WAV or > AIFF because they would exceed 4 GB - the maximum file size for

---------- Forwarded message ---------- From: Martin Leese <martin.leese at stanfordalumni.org> Date: Mon, 20 Dec 2010 21:42:04 -0700 Subject: To: flac-dev at xiph.org Erik de Castro Lopo wrote: > Can someone please remove this moron > spammer [Gourav Tewatia] from this list. And also delete their four posts from the archive (otherwise the SPAM links will be picked up by search

On 9/26/07, Josh Coalson <xflac@yahoo.com> wrote: > --- Martin Leese <martin.leese@stanfordalumni.org> wrote: ... > > Where can I find more detail on what is a > > "non-audio" RIFF chunk? > > it is any riff chunk that is not "fmt " or "data" > > > Ambisonic ".amb" files are WAVE-EX files with > > a

On 7/23/13, Silvia Pfeiffer <silvia at silvia-pfeiffer.de> wrote: > On Wed, Jul 24, 2013 at 3:59 AM, Martin Leese >> ... >>>> Information about Metadata >>>> has been collected together in the Xiph Wiki >>>> at: >>>> https://wiki.xiph.org/Metadata >> Page updated. See what you think. > > M3F is also not used anywhere