problem with joining ogg 2ch and 5.1 AC3 audio streams in one mkv file

[Snakeisthestuff]

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.

[alexnoe]

Disable lacing for the ogg audio file. That could help

[Snakeisthestuff]

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 :)

[ChristianHJW]

You sure have CoreVorbis installed ?

[tiki4]

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.

[Mosu]

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.

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 :)

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?

[tiki4]

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

[Mosu]

Ah ok, tiki. So if you stumble about this problem again just let me know.

[Eric B]

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.

[tiki4]

@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

[Mosu]

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.

[LeonMcNichol]

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.

[tiki4]

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.