![]() To save space, MPEG files only occasionally send full frames (keyframes or i-frames) and fill the rest of the video with p- and b- frames that only describe which pixels have changed since the previous frame. You can even do something i call dancing between the keyframes, inching back and forth through a glitchy area of the file as the artifacts become increasingly pronounced: (and i love the fact that you do this by going in reverse it really makes it seem like some magic ritual.) reversing through the file seems to trick avidemux into applying these changes wrong, thus revealing glitched frames that aren't actually in the file. ![]() Of course, it's one thing to see a ghost, and something else altogether to capture a ghost. ghost frames disappear just as suddenly as they appear. Skip so much as one frame too far and those ghostly glitches you've been cultivating could vanish. ![]() You can't just hold down the left arrow key and storm through the place: you have to inch along. So that's how you summon ghost frames from WTV files.
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