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Hi, I'm hacking on and off on oggmerge (from ogg-tools). I've added support for Theora, Speex, and Kate, as well as a few other fixes and changes. Now, I've got an issue relating to the ordering of pages as done by oggmerge, and the way oggz-validate tests for presentation time ordering. oggmerge, when deciding what timestamp...

Ok guys, I just committed the Ogg MIDI code to ogg-tools/oggmerge. You can now make synced vorbis+midi Oggs, but there is (not yet anyway) a tool to play such files. Have a look at the code, and let me know if you see anything major. Adding new media types for merging should be trivial, and you already have two examples (the vorbis one is VERY simple and the M...

...ition is a skeleton track (for Theora, Kate, Speex, and Vorbis). I'm not sure how to go about testing whether they're correct, I know of no tools that check this. They do appear plausible in oggzdump though. -------------- next part -------------- A non-text attachment was scrubbed... Name: oggmerge.diff.gz Type: application/x-gzip Size: 12300 bytes Desc: not available Url : http://lists.xiph.org/pipermail/ogg-dev/attachments/20080317/d10ae460/oggmerge.diff.bin

On 18/03/2008, Ivo Emanuel Gon?alves <justivo@gmail.com> wrote: > On 3/17/08, ogg.k.ogg.k@googlemail.com <ogg.k.ogg.k@googlemail.com> wrote: > > I'm not sure how to go about testing whether they're correct, > > I know of no tools that check this. > > > From the oggztools, oggz-validate should check properly for any errors. should, but doesn't

I'm testing this. Meanwhile, a brief question, do you really want Kate's media type to be "application" as opposed to "text"? -Ivo

If you look at http://wiki.xiph.org/index.php/MIME_Types_and_File_Extensions right at the bottom is a description of what the codecs without container format are called. CMML as a timed text codec has a mime type of text/cmml. Similarly, the textual representation of Kate should be text/x-kate. When you encode Kate in Ogg, it would not normally be expected to come without audio or video. Thus, if

To provide you with a proper answer, I'd have to read what you do to the text data to encode it in binary. Haven't got the time for that right now, sorry. But if it is some binary encoding and not just a gzip-type compression, maybe application/x-kate may indeed be appropriate. This would however mean that some specialised application is required to decode the data. I might spend some

> Now that Kate is stablizing and vorbis-tools 1.2.0 is out there, you > may also want to resubmit your patch for it. As suggested, here is the patch, updated against 1.2.0. There is also some fallback code if libkate isn't there (like, 99.9% of the cases :)) to show some basic info (bitstream version, language, category). Cheers -------------- next part -------------- A non-text

> To provide you with a proper answer, I'd have to read what you do to > the text data to encode it in binary. Haven't got the time for that > right now, sorry. But if it is some binary encoding and not just a > gzip-type compression, maybe application/x-kate may indeed be > appropriate. This would however mean that some specialised application > is required to decode the

...nt, the bitstream design is still in flux, but draws heavily from Vorbis and Theora, while leaving scope for backward compatible future changes. As a proof of concept, I have the codec working for subtitles in MPlayer (text only for now) and in some unreleased software of mine, as well as patch to oggmerge to multiplex it with Vorbis and Theora (BTW, I added Theora support to oggmerge, which oddly didn't have it, maybe I was looking at an old version ? It was from the xiph svn). I would like to get feedback on the design, as this is the first step towards having a complete spec for the bitstream...

> I'm testing this. Meanwhile, a brief question, do you really want > Kate's media type to be "application" as opposed to "text"? Thanks. About the media type, my understanding was that text was for actual text, not binary that could be decoded into text. If you think another would be more appropriate, please tell which. If it would be text/x-kate, I'd see

Hi, I've now uploaded the preliminary documentation on the xiph wiki: http://wiki.xiph.org/index.php/OggKate Attached is the current source tree for the libkate library. The tarball also contains the patch to oggmerge (which you will need to apply if you want to merge Kate streams with Vorbis or Theora streams) and the patch to MPlayer to use Kate streams as subtitles. An example is included - note that the text format used to define the stream is ad-hoc and the encoder/decoder code very rough and temporary. No...

> container format are called. CMML as a timed text codec has a mime > type of text/cmml. Similarly, the textual representation of Kate > should be text/x-kate. Agree, as both of these are text. > When you encode Kate in Ogg, it would not normally be expected to come > without audio or video. Thus, if it's an audio file, it should be > video/ogg - for a video file it should

...d > in an Ogg container. It includes text, motion information, and > style/placement. ok, that sounds very interesting :-) > As a proof of concept, I have the codec working for subtitles in MPlayer > (text only for now) > and in some unreleased software of mine, as well as patch to oggmerge to > multiplex it with > Vorbis and Theora (BTW, I added Theora support to oggmerge, which oddly > didn't have it, > maybe I was looking at an old version ? It was from the xiph svn). great, please either send that patch here, or create a ticket at trac.xiph.org and attach it there...

I've added ogg support to my player app. Now I'd like to be able to write/read album cover art (jpg, png, what ever) out of the ogg file and display it, as I do with mp3s. This assumes that an album cover art picture can reside inside of an ogg file. I've read through the vorbis.com/faq.psp as well as the list archives and haven't found any direct answers. The section on comments

...I need to know. * What license? My personal choice is GNU GPL, but if for any reason you xiph-people want some other license for these tools, I'll go along with that. * Do you have some templates for automake and autoconf files, autogen script and such, or could I simply use the ones in e.g. oggmerge? On IRC, adiabatic claimed that: "hm, iirc, rillian and jack, in descending order, have the autotools-fu." * If you think it would be appropriate to include the tool in ogg-tools, could you arrange for a cvs account so I can continue to work on it and a mail address so I don't have t...

...hich is used now in pretty much everything encoded > in Ogg (except for single stream Vorbis and Speex files), nor the file > extension for Theora, which is now .ogv. To be honest, I just added Theora because I needed a simple way to multiplex streams. Also, it'd likely take a rewrite of oggmerge to make it usable for multiplexed streams, I think it assumes a single logical stream per physical stream, though I didn't have an in-depth look at this issue. I did see references to Skeleton, I'll have a look at it. I didn't realize it was used widely - I've certainly not seen an...

Hey, On 1/15/08, ogg.k.ogg.k@googlemail.com <ogg.k.ogg.k@googlemail.com> wrote: > I've now uploaded the preliminary documentation on the xiph wiki: > http://wiki.xiph.org/index.php/OggKate Really nice work, by the way. > The tarball also contains the patch to oggmerge (which you will need > to apply if you want to merge Kate streams with Vorbis or Theora streams) I have looked into the patch. It doesn't take into consideration neither Skeleton, which is used now in pretty much everything encoded in Ogg (except for single stream Vorbis and Speex files),...

FWIW, I've just imported my mng-over-ogg code into xiph.org cvs. There are currently too tools, both under the new 'ogg-tools' module: 'oggmerge' is intended to multiplex files of various formats into a single ogg bitstream. Currently it only creates degenerate mng-over-ogg files. Next step is to add support for multiplexing with ogg vorbis files, and jack will likely be using it for his midi work. 'oggplay' is intended to...

Hi all, Does someone have a simple example of encoding (intializing and multiplexing) an OGG and non-OGG logical stream? I have successfully managed to do this to some extent. During the playback I am able to identify the change in sections from the second stream. However I am unable to retrieve the data as only one logical stream is being found by the API and subsequently fails out on