View Full Version : PAL MPEG Streean with NTSC header.
Has anyone seen this situation before? There's a new user who is having trouble outputting his video stream. After sending me the file, I've determined that the MPEG2 elemntary stream has a header saying its NTSC at 29.97 FPS, but since the user is in Germany its actually recorded at PAL 25 FPS. All the internal timestamps are correct at 25 FPS. This confuses the crap out of VideoReDo. I can update VideReDo to let the user override the MPEG2 header value, but would like to know if anyone knows a way of fixing his original capture so it doesn't happen in the future.
Capture card is an ASUS TV FM card. Capturing software is PowerVCR? According to the user there doesn't appear to be any options to set NTSC or PAL. Any ideas?
Dan,
I doubt ASUS is making their own card. Can any info be read off the capture card hardware to determine the original manufacturer? Are the capture drivers up to date? Were possibly NTSC drivers and not PAL drivers installed?
I had played with the PowerVCR a long time ago and was not terribly impressed. I believe PowerVCR was compatible with any card that was capable of VFW. Is the user running Win98? Perhaps they could try another capture program and see if its hardware or software related. I don't remember the name of it, but it was just a simple generic no-frills capture test program. AMCAP or something like that.
Also you mentioned the header was NTSC and you saw internal timestamp at PAL framerate. Was the PAL framerate definitely all the way through? I seem to remember my attempt with Creative Labs VideoBlaster Digital VCR showing framerates all over the place. 29.97, 24, 25 etc. How long is the clip he sent? Was it long enough to say this is definitely the case?
Also some capture devices don't necessarily initalize correct upon startup. In other words a PAL machine having a capture device default to NTSC. Is there anything on the hardware forum for ASUS that discusses a reinitialization procedure.
Anonymous
02-21-2005, 10:02 AM
I gave up on this technique a while ago, makes discs that won't run on many players, but wouldn't this cause exactly this sort of situation?
http://www.videohelp.com/forum/viewtopic.php?t=221928
Maybe his software is modifying it in a similar fashion?
bitter_old_man
02-21-2005, 01:43 PM
Which card does this person have? 7133, 7134, or 7135? The 7133 is an NTSC card, the 7134 is PAL, and the 7135 handles both. The 7135 uses a Philips chipset.
Barry
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