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View Full Version : Opening high bitrate mpeg2 w Directshowsource must choose audio or video


trolltuning
14th October 2004, 12:45
I have some mpeg files captured at a bitrate of 15,000 constant bitrate. The plan was to use Directshowsource to feed them to CCE and reencode to a var bitrate of 9500 or lower. When I try to open with Directshowsource I can get either video or audio, (I have spent 3 evenings switching Merit values of various Directshowsource filters, although I admit I am just working in the dark with about as much understanding as a blindfolded chimpanzee) but never both together. I am beginning to wonder if I am on the right track or whether this isn't the answer?

Ark
15th October 2004, 08:40
Strange, if your movie contain both audio and video, you should be fine...

You can try demuxing audio (I guess it should be AC3), or converting it to an external wave file and then do a directshowsource() for video and a wavsource() (or again a directshosource() if AC3) for audio...

sh0dan
15th October 2004, 11:26
Is there a reason you don't use MPEG2Source?

trolltuning
15th October 2004, 13:42
@Ark I tried demuxing in Womble but I end up with video and audio sevral minutes diffrent (which is strange as the original mpg plays in sync) so I didn't see the point of feeding that to an encoder.
@Shodan I believe I tried that but will look at it again -I think I got a "graph filter won't talk to me"
I also get that message when I try to use mpasource()

trolltuning
18th October 2004, 13:50
@Shodan Thanks I got mpeg2source to work- the gui I was using was automatically loading an old version when I opened a d2v file. When I wrote the script by hand it worked, and for some reason now mpasource works too.:) I now can produce an in sync mpeg with reduced bitrate- it still goes out of sync when I author it but I think that may be just a problem with this one vcr tape?