Conan the barbarian was on televison last night and I decided to capture it. After the conversation in the last post I made about video capturing codecs I decided on a high setting for the mjpeg codec which would give me approx 180mins per 30gigs with almost no quailty loss. I started capturing last night and everthing was going quite well, until I want into the setings for my DSS system. You see my digital sattellite system has a "feauture" called the personal planner where I can set up my programes to watch etc.. Now when I went in their during an ad on conan the barbarian the effect on my capture was enormus. dropped frames everywhere. I was amazed by this and the very next day went to see what was going on. I have discovered that the picvideo mjpeg codec will perposfully drop frames(!!) when the motion on screen is perfectly still. This is of course usually a good thing as compression is gained and at no loss to the video quailty but has adverse affects on virtual dub. When virtual dub sees that all these frames are bring droped it automatically drops audio frames as well to keep everything in sync!!! Now guess what happens when the video is played back! Perfect quailty video with no detail loss and almost no colour loss but the audio goes WAY out of sync the minute I entered the personal planer!!! The video of course plays back fantastically and you can't see that pic-video has droped frames but the audio just starts shooting all over the place up to 20 seconds ahead!!!
Of course the soloution is to just unclick audio/video sync in Vdub but my question is what happens when I do actually drop real frames!!! Say I drop 100 in a film, that may not be many but still works out to be a 2 second video/audio time difference!!
Is ther any way of switching this feature off!
P.S.
to vhelp:
solved the sun problem(i think) i was right about the sub sampling.
Baker
+ Reply to Thread
Results 1 to 2 of 2
-
-
Of course the soloution is to just unclick audio/video sync in Vdub but my question is what happens when I do actually drop real frames!!! Say I drop 100 in a film, that may not be many but still works out to be a 2 second video/audio time difference!!
Please help I wana capture!!
bAKER
Similar Threads
-
decoding mpeg video into frames say I,P,B frames
By abeer in forum ProgrammingReplies: 44Last Post: 6th Oct 2012, 08:24 -
Look at this pic Do I need a PCI or AGP video card in my PC
By marionr26 in forum DVB / IPTVReplies: 4Last Post: 12th Feb 2010, 00:34 -
Making a video from pic
By abdelilah in forum EditingReplies: 3Last Post: 30th Jan 2009, 12:36 -
Video playback went CRAZY?! (PIC attached...)
By sunsetblvd in forum Software PlayingReplies: 5Last Post: 10th Aug 2007, 20:02 -
Video/pic quality - Bit Rate, Dimensions...?
By tigerb in forum Newbie / General discussionsReplies: 5Last Post: 5th May 2007, 12:02