I'm trying to create a screencast for playback on the web. Would like to use h.264, webm, and ogg. The source files are in the Apple Animation codec, and they look perfectly accurate. However when I try to convert to mp4 using ffmpeg lossless settings, there is some definite degradation. It seems to be because the source is RGB and ffmpeg auto-selects yuv420p instead.
Incompatible pixel format 'rgb24' for codec 'libx264', auto-selecting format 'yuv420p'
Anyone know how to get the same color accuracy with mp4/h.264 as with Apple Animation?