In around 1995, i worked with QuickTime animation. The movies i need to generate are illustration for math. See examples here: Hypotrochoid.
They are line animations. The codec i've found best is Animation code and Graphics codec. Both are lossless. They are part of QuickTime.
Here's a description:
Here's what Wikipedia Animation codec say:
The Animation codec is a fast and lossless (if encoded at 100% quality) Quicktime video codec created by Apple Computer to enable playback of RGB video in real time without expensive hardware. It supports color depths from 1 to 32 bits, and is one of the few video codecs that supports an alpha channel. The Animation codec uses run-length encoding for compression, and as such works well for traditional 2-D animation where there are large areas of constant color, or have little change of pixels frame to frame (like screencast). For complex 3D rendered scenes or digitized film of real-world footage, it barely compresses at all and can also add visible noise at lower than 100% quality levels. It is also known by the acronym qtrle in ffmpeg, and its fourCC is ‘rle ‘. It was also declared the “winner” of a recent screencast codec shootout. It is available in the FFMpeg codec suite.
They are still supported in QuickTime player, but now QuickTime X does not seem to support saving movies using these codecs.
What's my best options for resaving these type of animation with today's video tech?
This person did a detailed comparison of ≈30 codecs, each with high/mid/low compression settings.
He starts with a 426.6 MiB uncompressed video file of a computer screen recording.
For best video quality, the best 3 are:
… All three of these look about the same. So Animation 16-bit high wins.
The next four, in continued declining order of quality, are:
- MPEG-4 High: 18.5 MiB
- Pixlet High: 31.6 MiB
- Sorenson 3 High: 8.7 MiB
- H.264 Medium: 2.4 MiB
If you absolutely must serve up a small file, then H.264 medium is the way to go.
Note: H.264 at High didn't make any difference in video quality.
See also: http://stackoverflow.com/questions/6785821/is-there-a-good-open-codec-for-screencast-compression.