Quote:
Originally Posted by traycer
I am using a slideshow authoring program called ProShow Gold. It can output a variety of video formats and containers. However, they all seem to be saddled with 4:2:2 or 4:2:0 chroma subsampling. The only exception is a Quicktime MOV with Motion-JPEG2000 compression.
My ultimate goal is to have these slideshows available to clients on my web site. My company logo incorporates some red on black, and as you can imagine the results are terribly blocky. The MJP2-encoded Quicktime looks good, but results in too large of a file and does not appear to be widely supported (e.g., in a Flash video player).
Here are two demonstration videos:
http://luxography.ca/tmp/subsampling_mjp2.mov (8744K)
http://luxography.ca/tmp/subsampling_h264.mov (4060K)
I would like H.264 video that looks as good as the MJP2 one.  I've run into a major obstacle, namely finding one utility that can both read MJP2 in a Quicktime container, and encode to H.264 with 4:4:4 chroma subsampling. |
x264 only supports 4:2:0, and I'm pretty sure all formats supported by Flash only support 4:2:0 (except maybe that Flash Screen Video format or something, meant for screen capture?)