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View Full Version : AC3 stutter on some OGM's


oddball
21st December 2003, 04:12
I don't know why but this particular OGM is giving me problems. I keep getting a stuttering. It's not interleave. I tried changing it to 64 or 96ms and no change. It's not the AC3 filter. I tried AC3filter, iviaudio and Cyberlinks. It does not stutter if I save to AVI or MKV. Other OGM's with AC3 do not seem to stutter. Also tried different players. It's baffling me.

Can someone test this sample for me? It's 3.73mb

http://www.oddball.nildram.co.uk/test.ogm

ffdshow 05232003
oggDS0996
AC3Filter 0.70
WinXP SP1
AMD XP 2400
512 DDR 2700
Nvidia GeForce4 440 MX 45.33 drivers

EDIT: Well I tried it with Media Player Classic 6.4.7.2 and it plays fine. But any other player (Even changing Zoom Player's custom audio filters did not work) and it plays back with jerky audio and video. Hmm.

alexnoe
21st December 2003, 09:34
Gabest has an own OGM splitter. That means your problem is the official one...

Koepi
21st December 2003, 11:16
Try going back to OggDS 0.9.9.5 and see if the problem still exists please.

Regards
Koepi

oddball
21st December 2003, 19:39
I read some readme that came with the encode and it says that only MPC will play it correctly since there is a problem with AC3 5.1 alongside Ogg 2.0 in the same OGM. Mind you I did try demuxing the AC3 and AVI and remuxing on thier own in an OGM and still had the same problem. Already tried 0995 thanks. Dunno. As ong as MPC can play it I am not that fussed. Although it is a little strange.

Tom|420
23rd December 2003, 17:48
When I play the file there are 2 different 'Sound' menu on the Ogg icon in the tray. It seems that both the AC3 and Ogg stream are playing at the same time with no way to disable one of those streams.

For my own testing and curiosity, I opened the file in VDM, removed the Ogg stream and resaved the file. Now it works just fine for me.

Resaving the file as is (without removing any stream) gives me the same result as you: 2 'Sound' icons.

BTW I get this message right in the preview pane of VDM:
WARNING: NOTHING TO OUTPUT BFRAME DECODE LAG
which seems to be from XviD... my impression is that your software does not care about key frames when splitting files.