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View Full Version : Beta of PVA support and AAC audio demux

neuron2
24th January 2005, 19:13
Here's a beta of PVA support:

http://neuron2.net/misc/dgmpgdec120b2.zip

Note that it currently supports only PVA files as specified in the TechnoTrend spec. I understand there are extensions and I am trying to get details about that.

This beta also demuxes AAC audio from transport streams.
TEB
25th January 2005, 00:14
works nice for me! tho it doesnt display anything under audio format during preview of the sw.ts file.. Should it? bug? or feature?
CruNcher
25th January 2005, 01:45
finaly :D thx
hmm i demuxed a pva and the audio is 37 seconds the video 38 could the correct delay be displayed like for vob ?
neuron2
25th January 2005, 03:35
@Cruncher

Please upload the PVA file to:

ftp.neuron2.net
user: guest@neuron2.net (enter it just like that)
password: guest

I am working on sync calculation for PVA files. I will add them when they are reliable.

@TEB

Audio is currently processed only when demuxing (i.e., saving project). Probably I will change that so that the Info box can be populated. Thank you for your feedback.

@Wilbert

Get PVA test files from the above FTP site. I am putting everything I have there.
CruNcher
25th January 2005, 07:26
done demux_delay.pva
TEB
25th January 2005, 09:01
@Neuron2, check ure ftp account for another trailer that bombs the application during pid selection.
1.Detect pid's
2.Select videopid and the cannot find audio or video data window pops up.. = crash.

Btw do u support HDV files? mpeg2 transport in a high level profile? Cannot detect pat/pmt it says on this other clip.. ive put it on the ftp also.. Tried another clip of the hdv files = bombs the app..
Wilbert
25th January 2005, 21:54
@Wilbert

Get PVA test files from the above FTP site. I am putting everything I have there.
I got them. Thx!
neuron2
26th January 2005, 02:00
@TEB and Cruncher

I'll look at the stream issues as soon as I get the trackbar fixed.
neuron2
26th January 2005, 09:20
Originally posted by TEB
@Neuron2, check ure ftp account for another trailer that bombs the application during pid selection.
1.Detect pid's
2.Select videopid and the cannot find audio or video data window pops up.. = crash.

Btw do u support HDV files? mpeg2 transport in a high level profile? Cannot detect pat/pmt it says on this other clip.. ive put it on the ftp also.. Tried another clip of the hdv files = bombs the app.. I didn't see any files there. Which FTP site did you use? You should use my neuron2 site.
TEB
26th January 2005, 11:12
i put em on ure account on our server. Anyway... the new build doesnt seem to like any of my transports anymore... hangs when clicking on select video pid.. no idea why..
neuron2
26th January 2005, 15:01
Originally posted by TEB
i put em on ure account on our server. Anyway... the new build doesnt seem to like any of my transports anymore... hangs when clicking on select video pid.. no idea why.. Thanks, downloading now.
neuron2
27th January 2005, 03:39
@TEB

I have these fixed in the beta coming this evening.
TEB
27th January 2005, 08:55
@neuron2:weee!! ill keep testing it with all my work files!
1.and a tiny little change on the display on profiles.. use mp@hl instead of the full text!main@main and so on... because ull get to little text space on the new 1440p@hl profiles for dv and so on..!!
2. Another gui thingy.. Is it possible to get the preview to scale the window when its 16:9 ? so the preview window has the right perspective?
3.Get deinterlacing as a part of the preview... (and before u ask, im not using it as a mpeg2 viewer ;)) i just like to preview the files in the best manner !!

keep up the work m8!
neuron2
28th January 2005, 03:16
Originally posted by CruNcher
hmm i demuxed a pva and the audio is 37 seconds the video 38 could the correct delay be displayed like for vob ? I processed your file and used delay of -320 and got good sync. DGIndex reports -465 and that is why I don't print the delay at this time. I haven't figured out why it is getting it wrong. So for now, determine your delays empirically.
smokeslikeapoet
10th August 2006, 21:37
@neuron2 Has support for PVA audio delay detection stable now? Or are you still working on it? BTW on some of my PVA files the AC3 audio is being reported as AAC and others are incorrectly reported as MPA. This could be due to corruption in my PVA files as I have to run the AC3 files through Besliced in order to get them to play with the AC3 direct show filter. The files play fine with VLC.