How to include .mpa audio w/ .d2v video?

lbecque · 2nd June 2005, 19:38

I have taken an mpeg2 file and processed it with dgindex and demuxed the audio into a .mpa file. I'm then using an avisynth script to process the video but I can't figure out how to dub the audio back in. Help!

My script looks like:
loadplugin("...DGDecode.dll")
# following upconv=true To convert to YUY2 for virtualdub
mpeg2source("D:\movies\resize battlestar.d2v", upConv=true)
# if interlaced use folowing group of lines
SeparateFields()
Lanczos4Resize(720,240,0,29,720,180).Weave()

I tried adding the following lines but can't get any of it to work:
# can't get following lines to work
video = Lanczos4Resize(720,240,0,29,720,180).Weave()
audio = WavSource("D:\movies\resize battlestar MPA T01 DELAY 17ms.mpa")
AudioDub(video, audio)

Wilbert · 2nd June 2005, 20:19

Use NicMPASource or MPASource and don't forget about the possible delay.

acrespo · 2nd June 2005, 20:49

Or convert .MPA file to .WAV. I recommend this conversion because MPA file need to decode in real time by the plugins and CPU need more time to do this step.

lbecque · 2nd June 2005, 22:41

Quote:

Originally Posted by Wilbert

Use NicMPASource or MPASource and don't forget about the possible delay.

I need some education here. What do you mean by not forgetting about the delay???

Wilbert · 2nd June 2005, 23:16

If you look at the name of the mpa file you will see it has a delay of 17ms. Thus your script becomes

Code:

loadplugin("...DGDecode.dll")
# following upconv=true To convert to YUY2 for virtualdub
mpeg2source("D:\movies\resize battlestar.d2v", upConv=true)
# if interlaced use folowing group of lines
video = last.SeparateFields().Lanczos4Resize(720,240,0,29,720,180).Weave()
audio = MPASource("D:\movies\resize battlestar MPA T01 DELAY 17ms.mpa")
AudioDub(video,audio)
DelayAudio(0.017)

lbecque · 3rd June 2005, 00:28

Thanks Wilbert and thanks again for straightening out that one line I was having trouble with

Code:

video = last.SeparateFields().Lanczos4Resize(720,240,0,29,720,180).Weave()

I was a little puzzled at first with this line but I found some explanations on the avisynth site and I think I get it now.
Last is a special variable representing the clip from the previous statements.
and the '.' is the same as putting it inside the next function i.e.
separatefileds(last)

2nd June 2005, 19:38	#1 \| Link
lbecque Registered User Join Date: Mar 2005 Posts: 14	How to include .mpa audio w/ .d2v video? I have taken an mpeg2 file and processed it with dgindex and demuxed the audio into a .mpa file. I'm then using an avisynth script to process the video but I can't figure out how to dub the audio back in. Help! My script looks like: loadplugin("...DGDecode.dll") # following upconv=true To convert to YUY2 for virtualdub mpeg2source("D:\movies\resize battlestar.d2v", upConv=true) # if interlaced use folowing group of lines SeparateFields() Lanczos4Resize(720,240,0,29,720,180).Weave() I tried adding the following lines but can't get any of it to work: # can't get following lines to work video = Lanczos4Resize(720,240,0,29,720,180).Weave() audio = WavSource("D:\movies\resize battlestar MPA T01 DELAY 17ms.mpa") AudioDub(video, audio)

2nd June 2005, 20:49	#3 \| Link
acrespo Brazilian Anime Ripper Join Date: Nov 2001 Location: Brazil Posts: 237	Or convert .MPA file to .WAV. I recommend this conversion because MPA file need to decode in real time by the plugins and CPU need more time to do this step. __________________ Capture cards: Compro VideoMate Gold+ (Philips SAA7134 based) (not active) Hauppauge PVR 150MCE (not active) ATI TV Wonder Elite (active)

3rd June 2005, 00:28	#6 \| Link
lbecque Registered User Join Date: Mar 2005 Posts: 14	Thanks Wilbert and thanks again for straightening out that one line I was having trouble with Code: video = last.SeparateFields().Lanczos4Resize(720,240,0,29,720,180).Weave() I was a little puzzled at first with this line but I found some explanations on the avisynth site and I think I get it now. Last is a special variable representing the clip from the previous statements. and the '.' is the same as putting it inside the next function i.e. separatefileds(last)

2nd June 2005, 20:19	#2 \| Link
Wilbert Super Moderator Join Date: Nov 2001 Location: Netherlands Posts: 6,390	Use NicMPASource or MPASource and don't forget about the possible delay.