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Old 17th October 2003, 19:56   #1  |  Link
Snakeisthestuff
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problem with joining ogg 2ch and 5.1 AC3 audio streams in one mkv file

Hi,

i want to join an 5.1 AC3 file and an 2channel ogg file + Xvid video in an mkv file. I read somwhere that this is possible with matroska now, cause i know that ogm couldnt handle this, i tried matroska.

The muxing is going fine and the playback of the 5.1 AC3 track too, but if i switch to the 2ch ogg track the movie gets some kind of choppy. I have muxed the file with the newest Vdub Mod and with mkvtoolnix, both doesnt work. Iam using the newest Matroska-splitter from gabest for playback.

Maybe someone has encountered this problem too?
I hope someone can help me.
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Old 18th October 2003, 09:10   #2  |  Link
alexnoe
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Disable lacing for the ogg audio file. That could help
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Old 18th October 2003, 13:38   #3  |  Link
Snakeisthestuff
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thx, for the tip, but its working now for an other movie, i dont know exactly why, i think i must test this a little more.

thx anyway
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Old 19th October 2003, 23:20   #4  |  Link
ChristianHJW
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You sure have CoreVorbis installed ?
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Old 24th October 2003, 12:43   #5  |  Link
tiki4
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I had a similar problem:

Episode Two:

XviD video + 2x 5.1 AAC + 64kbps Vorbis (Director's comments) + 4 srt subtitles.

O.K. that one's a bitch, I did it for testing. Unfortunately the length of the movie is shown as 6 hours + some minutes in latest Media Player Classic and seeking is borked. Playback and channel switching works though. If I remove the Vorbis track everything is fine and seeking is possible. I did the muxing with mkvmerge 0.7.2.

Just to mention that: file plays fine in WMP 6.4 but seeking and shown length are also wrong. Switching audio works with MSS 0.98.

tiki4

Edit: Playback is like this: ffdshow (23 May) decoding with xvid.dll, CoreAAC + CoreVorbis + VSFilter.dll.
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Old 27th October 2003, 11:30   #6  |  Link
Mosu
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Quote:
Originally posted by tiki4
XviD video + 2x 5.1 AAC + 64kbps Vorbis (Director's comments) + 4 srt subtitles.

O.K. that one's a bitch
Technically that shouldn't be a bitch at all, it's just a bunch of tracks. The container itself has no problems with that (neither does OGM), it's just DirectShow/the filters that might bork on this.

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I did it for testing. Unfortunately the length of the movie is shown as 6 hours + some minutes in latest Media Player Classic and seeking is borked.
That, however, is pretty strange. Please run 'mkvinfo yourfile.mkv > report.txt' and send me report.txt via email to moritz@bunkus.org so that I can take a look at it. And if you have some bandwidth to spare then please also run 'mkvinfo -v -v yourfile.mkv > report-long.txt', compress report-long.txt and send that one to me as well.

Thanks

Quote:
If I remove the Vorbis track everything is fine and seeking is possible. I did the muxing with mkvmerge 0.7.2.

Just to mention that: file plays fine in WMP 6.4 but seeking and shown length are also wrong. Switching audio works with MSS 0.98.
Interesting. Regarding WMP 6.4: Does seeking work, and is the length corrent when you leave out that Vorbis track again?
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Last edited by Mosu; 27th October 2003 at 11:54.
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Old 27th October 2003, 13:16   #7  |  Link
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Hi Mosu,

the file works, if I only have two audio tracks (5.1 AAC) and the the four subtitle streams. It doesn't matter which player. The only problem is when I add the Vorbis commentary track to the file. Seeking and shown length are problematic in MPC and WMP. Maybe this is a matter of CoreVorbis and CoreAAC loaded at the same time. I didn't see any problems with the file when mkvinfo was run over it also loading into VirtualDubMod wasn't a problem. Unfortunately I deleted the file. I may recreate it, but this takes some time. My machine is quite slow so I need for the audio 5 hours alone. If I have recreated it, I'll send you the output of mkvinfo.

Thanks,

tiki4
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Old 27th October 2003, 13:24   #8  |  Link
Mosu
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Ah ok, tiki. So if you stumble about this problem again just let me know.
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Old 27th October 2003, 17:11   #9  |  Link
Eric B
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I'm also using AC3 and ogg vorbis audio tracks in my mkv.
All is working great.
The only problem I have is there is sometimes some craks in the ogg vorbis audio track but only in TCMP. No problem at all with MPC.
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Old 28th October 2003, 10:36   #10  |  Link
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@Mosu:

Hi,

I was able to reproduce the problem yesterday. Some other content but the same movie. Now here comes the funny part: I found out that it's all the fault of two broken srt streams. Somehow SubRip 1.17.1 produces two srt files with time codes above 6 hours. The funny thing was, on Friday I ran the file with AAC + Vorbis + the .srt subtitles through VirtualDubMod in Direct Stream Copy and diabled the Vorbis track. The resulting file played without seeking problems so I must guess that VDMod somehow corrected the time codes of the broken subtitles. Dunno what that means.

Anyway, I have a 5 MB RAR file of a mkvinfo -v -v -v of the broken file so if you nevertheless want to have it... though I think you won't need it anymore.

tiki4
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Old 28th October 2003, 14:26   #11  |  Link
Mosu
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Quote:
Originally posted by tiki4
Now here comes the funny part: I found out that it's all the fault of two broken srt streams. Somehow SubRip 1.17.1 produces two srt files with time codes above 6 hours.
Ah yes, interesting. No, I don't want the mkvinfo log file anymore, but I'd be interested in the SRT files If you still have them, could you send them to me please? moritz@bunkus.org

Thanks.
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Old 30th October 2003, 02:51   #12  |  Link
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I remember having problems with subrip and time codes when I would try to convert directly from the vob files, but it would be fine if I did it from the sub/idx file that vobsub would put out.
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Old 30th October 2003, 09:05   #13  |  Link
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I'll give it a try, never tried that though, usually I have external subs.

tiki4

@mosu: I'll send them tomorrow, didn't have much time the last two days.
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