recording video from TV via DirectShow

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I'm working on a application recording video from TV via DirectShow. The function used is

SetOutputFileName()

parameter : MEDIASUBTYPE_Avi
If compression filter (Cinepak Codec by Radius) is applied, the video recorded is suffering severe frame dropping.
If no compression filter is applied, the video file recorded is as large as 2GB in two mintues.
In both cases, video and audio are not synchronized.

How to deal with it?

Posted 5-Jul-10 16:23pm

fanfanfyq

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Christian Graus · Answer 1 · 2010-07-05T16:34:00

You need to use a better codec and get a faster machine, or use a lower image size or frame rate. You're dropping frames b/c your computer can't keep up, and you're out of sync because the codecs that come with windows all suck. DivX is a good codec. The other thing you can do with a slow machine is to capture uncompressed, and compress later.

fanfanfyq · Answer 2 · 2010-07-05T16:52:00

Solution 2

To Christian Graus,
DivX cannot be found in Win7.
It's too large if we capture uncompressed.

Posted 5-Jul-10 16:52pm

fanfanfyq

Comments

Christian Graus 6-Jul-10 0:11am

What made you think that the 'answer' button was the right thing to push to post this ? Again, NONE of the codecs that come with Windows are worth a damn. You need to download and install decent ones. Push 'comment' to comment, and 'answer' to answer.

Sandeep Mewara 6-Jul-10 1:52am

Reason for my vote of 1
It is a comment to CG answer and not an answer.