Philippe DUBY
2002-Sep-06 02:40 UTC
[vorbis-dev] Header structure for "video" stream ?
I am writing a tool that gives information on movie files (http://avicodec.duby.info/) and I want to add ogg support. I have found full of information on ogg file format, vorbis file format, but nothing on the "video" bitstreams that I can found in some ogg files (with XVID movies mixed with vorbis audio for example). I can see that the "video" structe looks like this, but I'm searching information on what I call Dummy fields : struct OGG_Video { WORD wDummy0; DWORD dwFCC; DWORD dwDummy1; DWORD dwFps; DWORD dwDummy3; DWORD dwDummy4; DWORD dwDummy5; DWORD dwDummy6; DWORD dwDummy7; DWORD dwDummy8; DWORD dwWidth; DWORD dwHeight; DWORD dwDummy9; }; Thanks for your help, I know that this list is not really the good one, but I don't know where to ask for it. Philippe --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
ChristianHJW
2002-Sep-06 06:13 UTC
[vorbis-dev] Re: Header structure for "video" stream ?
"Philippe DUBY" <p.duby@asi.fr> schrieb im Newsbeitrag news:5.1.0.14.2.20020906093146.0513c090@mail.asi.fr...> I am writing a tool that gives information on movie files(http://avicodec.duby.info/) and I want to add ogg support.> > I have found full of information on ogg file format, vorbis file format,but nothing on the "video" bitstreams that I can found in some ogg files (with XVID movies mixed with vorbis audio for example).> I can see that the "video" structe looks like this, but I'm searchinginformation on what I call Dummy fields :> struct OGG_VideoPhilip, the Ogg streams you found are not official Ogg streams, but a 'hack' created by Tobias Waldvogel ( closed source ) and use a basic Directshow implementation mainly targeted for Windows. However, Moritz Bunkus has created suitable tools for Linux recently to be found here : http://www.bunkus.org/videotools/ogmtools/index.html He is a very nice and clever guy and obviously managed to reverse engineer Tobias implementation ( maybe with Tobias' help ?? ), as the files created on Linux are about 95% compatible with Tobias' Dshow filters for Windows ( some minor probs with order of audio streams ). He might be able to help you i guess .... -- Christian Sites : http://mcf.sourceforge.net http://sf.net/projects/mcf MCF mailing lists : news://news.gmane.org gmane.comp.video.mcf.general gmane.comp.video.mcf.devel gmane.comp.video.mcf.mplayer gmane.comp.video.mcf.announce gmane.comp.video.mcf.mpc Soon : www.corecodec.com <p><p><p>--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.
Dan Miller
2002-Sep-06 08:11 UTC
[vorbis-dev] Re: Header structure for "video" stream ?
you may also want to check out the www.theora.org site (another xiph project), where we are defining a video /audio ogg bitstream based (initially at least) on the VP3 codec. This work should map cleanly to other codecs, and hopefully will become the canonical specification for including video in OGG. -----Original Message----- From: ChristianHJW [mailto:christianhjw@users.sourceforge.net] Sent: Fri 9/6/2002 9:13 AM To: vorbis-dev@xiph.org Cc: Subject: [vorbis-dev] Re: Header structure for "video" stream ? "Philippe DUBY" <p.duby@asi.fr> schrieb im Newsbeitrag news:5.1.0.14.2.20020906093146.0513c090@mail.asi.fr... > I am writing a tool that gives information on movie files (http://avicodec.duby.info/) and I want to add ogg support. > > I have found full of information on ogg file format, vorbis file format, but nothing on the "video" bitstreams that I can found in some ogg files (with XVID movies mixed with vorbis audio for example). > I can see that the "video" structe looks like this, but I'm searching information on what I call Dummy fields : > struct OGG_Video Philip, the Ogg streams you found are not official Ogg streams, but a 'hack' created by Tobias Waldvogel ( closed source ) and use a basic Directshow implementation mainly targeted for Windows. However, Moritz Bunkus has created suitable tools for Linux recently to be found here : http://www.bunkus.org/videotools/ogmtools/index.html He is a very nice and clever guy and obviously managed to reverse engineer Tobias implementation ( maybe with Tobias' help ?? ), as the files created on Linux are about 95% compatible with Tobias' Dshow filters for Windows ( some minor probs with order of audio streams ). He might be able to help you i guess .... -- Christian Sites : http://mcf.sourceforge.net http://sf.net/projects/mcf MCF mailing lists : news://news.gmane.org gmane.comp.video.mcf.general gmane.comp.video.mcf.devel gmane.comp.video.mcf.mplayer gmane.comp.video.mcf.announce gmane.comp.video.mcf.mpc Soon : www.corecodec.com --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered. -------------- next part -------------- A non-text attachment was scrubbed... Name: winmail.dat Type: application/ms-tnef Size: 6363 bytes Desc: winmail.dat Url : http://lists.xiph.org/pipermail/vorbis-dev/attachments/20020906/103585dc/winmail-0001.bin
Roger Andersson
2002-Sep-07 18:03 UTC
[vorbis-dev] Re: Header structure for "video" stream ?
Philippe DUBY wrote:> I have found full of information on ogg file format, vorbis file> format, but nothingon the "video" bitstreams that I can found in some > ogg files (with XVID movies mixed with vorbis audio for example). Have you look at "Description of th epacket format" at the OggDS homepage, http://tobias.everwicked.com/ ? It's rather easy to miss - right at the top of the frame when clicking "Programming". <p><p>--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'vorbis-dev-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is needed. Unsubscribe messages sent to the list will be ignored/filtered.