Sunday, July 01, 2007
Visual Hub, High Motion and H.264
Just a tip - on Visual Hub for the Mac, when encoding an MP4 file with lots of motion - my example was a series of photos at 15 frames per photo (2 per second) - it fails miserably even at high quality settings. The fast frame changes just disintegrated into macroblock noise.
However, if I go into Advanced Settings, and check '2-pass' encoding, it clears right up, at the cost of 50% more encoding time. (2 minutes to 3 minutes for a 2:10 video clip on the 2.33 MacBook Pro)
Another note - at the same settings, without the 2-pass encoding, the AVI Simple profile appears to deliver similarly excellent results. Not sure what codec is used - Xvid / DivX I assume via FFMPEG. Also a smaller file size and greater compatibility between Windows, Mac and Linux.
The AVI files can be seen at my KS HSTA site (no, not the UTube, below that!).