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I have a problem with converting mjpeg avi and audio

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Chang Hun KimI have a problem with converting mjpeg avi and audio
by on Feb 28, 2011 at 4:19:30 pm

Hi,
My client want me to convert video as a specific format which I don't know how to do it.

Video Format is

File Extension : *.avi
Format : AVI
Video Codec : mjpeg
Resolution : 480x234
Aspect Ratio : 80:39
Video Bitrate : 2000kbit/s - 2500kbit/s
Frame/Sec : 20-25 fps
Audio Codec : pcm_s16le
Audio Bitrate : 128kbit/s
Sampling Frequency : 44.1 or 48kHz

I did research on internet and found that I can use VirtualDub with Morgan M-JPEG codec V3 to convert video but I didn't find a way to convert audio as pcm_s16le. I don't even have any idea about what pcm_s16le is.
I see only pcm menu in the VirtualDub audio compression setup menu.
Are they, I mean pcm and pcm_16le, really different?

please help me.


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Cory PetkovsekRe: I have a problem with converting mjpeg avi and audio
by on Mar 1, 2011 at 9:13:56 pm

It means signed 16-bit little endian. Unless you're working on big iron unix (not with AE), your processor is little endian. The difference between signed and unsigned is significant for numbers >=2^15 or negative. Look it up if interested. But basically it will probably work just fine as pcm_16le which doesn't specify if it is signed or unsigned.

Cory

--
Corporate Video


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Chang Hun KimRe: I have a problem with converting mjpeg avi and audio
by on Mar 1, 2011 at 10:02:38 pm

Thank you Cory,
You're my Savior!
I've just sent encoded mjpeg avi with pcm audio file to my client.
I'm just waiting if my client would complain about it or not.
Thanks for the knowledge about difference between two!!


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