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brow0833
May 19, 2006, 21:19:36
Hello,

I'm attempting to use the MV Recording filter in a filter configuration described in this thread:

http://www.theimagingsourceforums.com/showthread.php?s=&postid=17624#post17624

It's basically recording with an MV IP camera source filter to the MV Multi File Writer with the MV Recording filter to manage FPS.

After reading the documentation on the MV Recording filter I'm unclear on which options I should use. I'd like to always have the frame associated with real time. So if it's one frame per second the filter will record 10 frames in 10 seconds.

The filter seems to record all the frames and moves the time stamp so that the media file is very long when it only sampled for a few seconds.

On the other side, when the filter is set to a high frame rate the playback in Windows Media player plays back much faster then real time.

Both of these cases, fast and slow seem to occur with any radio button selected.

Is there a way to keep the frames in real time?

Thanks for suggestions on using this filter or something else that might allow for FPS control while maintaining the correct time stamps.

Andy

Marc Cymontkowski
May 19, 2006, 22:33:37
Andy,

that's a problem of the AVI container. It only has a fixed frame rate which is set once, in this case when the filters connect.

Havn't tried this, but maybe it would help to use a streaming media container here.


Best Regards,

Marc

Marc Cymontkowski
May 20, 2006, 00:09:29
Hi Andy,

I tried to use the Matroska container and it does the job. Please have a look at the attached sample MVP file.

Matroska Project:
http://www.matroska.org/index.html.en

Before running it, you have to install the DirectShow Matroska runtime from http://packs.matroska.org/ .

Best Regards,

Marc

brow0833
May 31, 2006, 21:32:16
I've found that the ASF format fits my need. It also allows one to create a "profile" or .prx file to control frame rate and many other settings. The Matroska container seemed to have many of these features but isn't a standard format. It would be very nice if the MV Multi File Writer Filter had this format as well.

I'm posting this for the next person who runs into this.

Andy