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Virtualdub add timecode to video3/11/2023 ![]() This can increase accuracy to 2 frames for MPEG2, and substansially reduce it for MPEG4. With these, your cutting accuracy is limited to a similar degree.Īnother note: some programs allow problem free cutting on certain p frames (in particular, those which are an 'implicit' b-ref boundary), but not all streams and not all programs will support this. It has been surprising that something so basic is so hard to find Tapek, 13. ![]() ![]() The video plays in the new speed in the VirtualDub window. but its lack of a preview window, timeline and inability to split exactly the timecode you tell it to make it not suited to my uses. With MPEG4 videos, of the type you generally see online, these frames occur between 1 and 10 seconds apart, mostly on scene changes. Click File > Preview Output from start to do that. Because MPEG2 b-frames will only reference one future frame (which is almost always the next frame), and not every MPEG2 stream even has b-frames, you can generally be assured of cutting accuracy within a few seconds. In MPEG2, you usually get one of these every few seconds, so you can get pretty accurate cuttings. Then you need the the virtualdub plug-in Add Frame Numbers. b-frames are places you definately cannot cut on, the only place you can cut in a stream without problems is an IDR frame, which is: Found several ways to get the time-code overlayed onto a video - problem is - I need true.
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