#305 closed enhancement (fixed)
PNG palette indexed encoding mode
| Reported by: | Antoine Martin | Owned by: | Antoine Martin |
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| Priority: | minor | Milestone: | 0.10 |
| Component: | core | Version: | |
| Keywords: | Cc: |
Description (last modified by )
would probably save a fair amount of bandwidth.
We can provide a new encoding option, maybe named "png8".
This should reduce the bandwidth somewhat.
Also, let's benchmark the "optimize=1" flag to see if it is worth having, maybe as an encoding option similar to the x264 speed menu. (with just 2 options)
Attachments (1)
Change History (4)
comment:1 Changed 8 years ago by
| Description: | modified (diff) |
|---|---|
| Status: | new → assigned |
Changed 8 years ago by
| Attachment: | add-png8.patch added |
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comment:2 Changed 8 years ago by
| Resolution: | → fixed |
|---|---|
| Status: | assigned → closed |
added support in r3446, it has to be enabled manually using:
--encoding=png/Lfor grayscale 8bit palette mode--encoding=png/Pfor colour 8bit palette mode
It would be advantageous to use these modes automatically (at least png/P) when compressing regions with few colours... but I don't see how we could detect the presence of uniform regions cheaply enough.
comment:3 Changed 3 months ago by
this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/305
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updated patch with missing parts