How to get WavSource or DirectShowsource framecount

[honzakov]

Hello, i want convert some wav and mp3 files to mpeg2 video program stream with QuEnc, so i created simple avs script to frameserve a/v stream to QuEnc:

au = MPASource("2-01-Prenasledovanie skirtov.mp3")
vi = BlankClip(width=352,height=288,fps=25,length=1000000)
av = AudioDub(vi, au)
av = Subtitle(av,"2-01-Prenasledovanie skirtov",40,144)
av = Trim(av, 0, au.FrameCount())
av
ResampleAudio(48000)
converttoyv12()

But if i want use DirectShowSource for ac3,mp3 or wav audio (or WavSource for wav), then au.framecount is 0 in all cases :-( So i can't trim av to audio length..

If i use something like this:

au = DirectShowSource("2-01-Prenasledovanie skirtov.mp3",25,true,true,false)
vi = BlankClip(width=352,height=288,fps=25)
av = AudioDub(vi, au)
av = Subtitle(av,"2-01-Prenasledovanie skirtov",40,144)
av
ResampleAudio(48000)
converttoyv12()

..then avs have good length in MediaPlayerClassic, but QuEnc encode only 9 second (720 frames?)..

Please, how i can slove this problem, i want add batch script for audio to mpg in to foobar2000 convert menu and there is only possible way use wav files as input..

Thanks for reply.

[stickboy]

Wow. Lots of esoteric questions repeatedly asked recently.

"Frame count" doesn't make sense on an audio clip. What is a frame? What is the frame-rate?

See this thread:
WavSource and framecount bug? (http://forum.doom9.org/showthread.php?s=&threadid=87675)

[honzakov]

Originally posted by stickboy
Wow. Lots of esoteric questions repeatedly asked recently.

"Frame count" doesn't make sense on an audio clip. What is a frame? What is the frame-rate?

Thanks for reply.

Ok, sorry for mistake...

My problem is how to set proper A/V clip length if audio is taken from DirecShowSource and video from blank clip.. Thanks for link, i try use AudioLength..

[honzakov]

Many thanks stickboy for link above, there is solution for my problem:

au = DirectShowSource("F:\avs\Oxygene 7.mp3",25,true,true,false)
vi = BlankClip(width=352,height=288,fps=25,length=1000000)
av = AudioDub(vi, au)
t = 25*(au.AudioLengthF/au.AudioRate)
av = Trim(av, 0, int(t))
av
ResampleAudio(48000)
converttoyv12()

it's works great with directshowsource..

thanks for help