search for: oggmng

...s at all. :) > It was my impression that it is mostly header-type content, i.e. > concerns the full file rather than segments of it. It makes sense to reference it per-chain-segment in an Ogg context. > Therefore, embedding it into any of the time-aligned streams (Kate, > CMML, OggMNG) doesn't make much sense to me. > It should be in a header. When I've suggested OggMNG (or rather OggJNG and OggPNG) for cover art in the past it was in that sense that it be a 'header only' stream, the way skeleton is. I'd suggest defining an album-art reference in the...

On 5/24/08, Ralph Giles <giles at xiph.org> wrote: > It's supposed to be finalized though there many be some granulepos > issues still in current implementations. I don't expect 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,...

...sive, and kind of settled on the existing practice of adding a uuencoded image in a Vorbis comment, or similar. A better solution would be to embed those images as a separate stream, including hints as to what image represents (front cover, back cover, etc). The obvious candidate for this would be OggMNG, but it seems to be dead too. Kate streams can include PNG images, so are another possibility, but the problem of telling a client what each image is remains. One solution would be to add each image as a separate Kate stream with a specific category (eg, "art/front-cover", "art/bac...

...oftware that achieves this process, 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 scrubbe...

Hi all, I am trying to append some image to my ogg file but it results to corruption of the file, as there is no real way of including images in the OGG, I just tried to append the image at the end. any suggestions how can I realize this without getting corrupted file? What happens is that the time of the song grows in my player(vlc/winamp) etc... and when I try to edit the tags with my tag

...including images > > in the OGG, I just tried to append the image at the end. > > Yes, that will look like corruption to any reader. > > The spec-compliant way to do this is to put the image in a separate ogg > stream and multiplex it with the audio. See http://wiki.xiph.org/OggMNG > for how to do this with PNG and jpeg images. Unfortunately, vorbisfile > based audio player won't play such files. This is a limitation of > libvorbis. Tahseen Mohammad recently worked on a version of libvorbisfile which could handle such files; that branch is at: http://svn.xi...

...oretically possible to embed pictures in Ogg. I hope we can establish this year how to do it "officially" for Ogg FLAC and Vorbis. I don't suppose we can use Vorbis Comment, though, what with it expecting every field to be UTF-8 text. And trying to embed it normally likely leads to OggMNG which is overkill. -Ivo

...undamental question about coverart first: is coverart a header-type content or a time-aligned type content? It was my impression that it is mostly header-type content, i.e. concerns the full file rather than segments of it. Therefore, embedding it into any of the time-aligned streams (Kate, CMML, OggMNG) doesn't make much sense to me. It should be in a header. As headers go, we have vorbiscomment and we have skeleton. If the coverart goes anywhere, that's where it should go IMHO. Vorbiscomment is generally used for metadata type header information. Skeleton doesn't really have a spac...

...ting ogg codecs are > able to achieve 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 processin...

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

Ivo Emanuel Gon?alves wrote: > Hi Steve, > > Ogg is not an acronym. > > Besides Speex I am not aware of any other voice codec that has used > Ogg to this day, albeit it is possible. > > Hope that helps. > > -Ivo > Is there a well recognised procedure for adding new codec formats to ogg? If there is I'll probably add about 20-30 for the common speech codecs,

...there is no real way of > including images > in the OGG, I just tried to append the image at the end. Yes, that will look like corruption to any reader. The spec-compliant way to do this is to put the image in a separate ogg stream and multiplex it with the audio. See http://wiki.xiph.org/OggMNG for how to do this with PNG and jpeg images. Unfortunately, vorbisfile based audio player won't play such files. This is a limitation of libvorbis. You can also abuse the comment header for this. Just add a comment like "COVERART=<binary image blob>". The vorbis_commen_*() a...

...> in the OGG, I just tried to append the image at the end. > > > > Yes, that will look like corruption to any reader. > > > > The spec-compliant way to do this is to put the image in a separate ogg > > stream and multiplex it with the audio. See http://wiki.xiph.org/OggMNG > > for how to do this with PNG and jpeg images. Unfortunately, vorbisfile > > based audio player won't play such files. This is a limitation of > > libvorbis. > > Tahseen Mohammad recently worked on a version of libvorbisfile which > could handle such files; that bra...

...ust tried to append the image at the end. >> > >> > Yes, that will look like corruption to any reader. >> > >> > The spec-compliant way to do this is to put the image in a separate ogg >> > stream and multiplex it with the audio. See http://wiki.xiph.org/OggMNG >> > for how to do this with PNG and jpeg images. Unfortunately, vorbisfile >> > based audio player won't play such files. This is a limitation of >> > libvorbis. >> >> Tahseen Mohammad recently worked on a version of libvorbisfile which >> could han...

...might be less than eight characters. > Dirac is the only one I'm not sure, since this one here's the > recent string. It's supposed to be finalized though there many be some granulepos issues still in current implementations. I don't expect the BBCD\0 magic to change. 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 Are the 'Codecs Parameter' values from a different namespace from the media-types? Do we define a mapping where there is one, e....

Hi ogg.k, I've just been asked what the difference was between Kate and the W3C timed text format (http://www.w3.org/AudioVideo/TT/) and whether there was any compatibility. It migjht be a question and answer to add to the OggKate wiki page. Cheers, Silvia.

...orge.net/*checkout*/flac/flac/doc/html/changelog.html Ah, cool. Is the 0x05 "leaflet page" picture type what you'd use for scanned liner notes? We suggest people who want to embed artwork in ogg do so as a parallel stream multiplexed with the audio data, using http://wiki.xiph.org/OggMNG. However, there's no convention for doing an entire album in an ogg file the way there is with flac, so we generally recommend people just put all the tracks in a directory along with the artwork as separate files and use the freedesktop.org .desktop file to point to the cover. -r

...t; As for .ogv for Theora, do you mean Theora-in-ogg, or raw Theora ? > If Theora-in-ogg, then what about Theora multiplexed with other stream > types, like Vorbis, since a lot of videos will have sound embedded ? .ogv is the file extension for video on Ogg. That is usually Theora, but even OggMNG is supposed to use it. And of course this also counts if the file has multiplexed audio. For instance, the basic media file Theora + Vorbis + Kate/CMML (+Skeleton) would use .ogv. People give too much meaning to file extensions and we have to rely on that and give them what they want, which is a...

On Saturday 08. September 2007 16:12:08 Ivo Emanuel Gon?alves wrote: > Thanks a lot for taking an interest and trying to work with metadata > in Ogg. There have been efforts before, but they have seemly gone > nowhere. I've heard there's a need for a serious metadata framework > in Ogg, albeit me personally would find no use for it. Then again, > the Web's moving to a

...was simply .ogg at the beginning, then .ogm, > then now .ogv - i really hope this is the final change! people (and > applications) can get easily confused. Er, officially Xiph has only issued .ogg for everything, which has changed last year for .ogv for all video in Ogg (Theora, Dirac, OggMNG, etc). .ogm has always been a non-official file extension to identify the hacked version of Ogg (aka OGM) which usually contains only MPEG-4 video (aka non-free video). Please do not use or promote .ogm. So, yes, .ogv is final. > > * a Skeleton bitstream for all output files? > > pl...