[FFmpeg-devel] Color quantization for GIF v2
u at pkh.me
Tue Feb 10 12:53:10 CET 2015
On Mon, Feb 09, 2015 at 06:35:08PM +0100, Clément Bœsch wrote:
> • we might still want to consider a per frame palette approach
To elaborate on this point, what I meant was to define a per frame palette
only for the part that change. I originally dismissed that idea for 2
• it creates a palette overhead
• after a (maybe not reliable) test, the resulting gif was "blinking" a
lot, probably because of overall light changes in the palette
For the first issue, we can consider it negligible (~150kbits). For the
second issue, I need to re-do that test.
The potentially interesting points about that approach are:
• single pass
• higher color definition, especially if only a small part of the input
Even if the blinking effect is present, it can still works well for mostly
I'm still uncertain about where it's going to end, but I will probably
have it in a third filter.
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