On Fri, Feb 5, 2021 at 12:57 AM Derek Buitenhuis
wrote:
> GIF palette entries are not compressed, and writing 256 entries,
> which can be up to every frame, uses a significant amount of
> space, especially in extreme cases, where palettes can be very
> small.
>
> Example, first six seconds of
Derek Buitenhuis wrote on 04.02.21 19:42:
On 04/02/2021 17:26, Paul B Mahol wrote:
How would that work?
I'm not against if that does not break existing usage.
Somethng like '-no_global_paltte 1' to not use a global
palette, and write a palette each frame. Default would be
off, so curent
On 05/02/2021 01:54, Andreas Rheinhardt wrote:
> Could AV_CODEC_FLAG_GLOBAL_HEADER be used for this?
It could, but I don't think it should.
The global header is still written, just not with a global palette.
I think it would be, at best, confusing, especially in terms of
intent.
- Derek
Derek Buitenhuis:
> On 04/02/2021 17:26, Paul B Mahol wrote:
>> How would that work?
>> I'm not against if that does not break existing usage.
>
> Somethng like '-no_global_paltte 1' to not use a global
> palette, and write a palette each frame. Default would be
> off, so curent behavior is
On 04/02/2021 17:26, Paul B Mahol wrote:
> How would that work?
> I'm not against if that does not break existing usage.
Somethng like '-no_global_paltte 1' to not use a global
palette, and write a palette each frame. Default would be
off, so curent behavior is maintained.
- Derek
On Thu, Feb 4, 2021 at 6:15 PM Derek Buitenhuis
wrote:
> On 04/02/2021 17:09, Derek Buitenhuis wrote:
> > Accidentally left it in, removed it now.
> >
> > Further, I forgot to add re-mapping of the frame values
> > for the case where the user-provided palette is not
> > front-loaded (e.g. it has
On 04/02/2021 17:07, Paul B Mahol wrote:
> You first init array to 0 and than use memset?
Accidentally left it in, removed it now.
Further, I forgot to add re-mapping of the frame values
for the case where the user-provided palette is not
front-loaded (e.g. it has gaps), so I'll send a v2.
-
On 04/02/2021 17:09, Derek Buitenhuis wrote:
> Accidentally left it in, removed it now.
>
> Further, I forgot to add re-mapping of the frame values
> for the case where the user-provided palette is not
> front-loaded (e.g. it has gaps), so I'll send a v2.
Another case to consider is that we
On Thu, Feb 4, 2021 at 5:57 PM Derek Buitenhuis
wrote:
> GIF palette entries are not compressed, and writing 256 entries,
> which can be up to every frame, uses a significant amount of
> space, especially in extreme cases, where palettes can be very
> small.
>
> Example, first six seconds of
GIF palette entries are not compressed, and writing 256 entries,
which can be up to every frame, uses a significant amount of
space, especially in extreme cases, where palettes can be very
small.
Example, first six seconds of Tears of Steel, palette generated
with libimagequant, 320x240
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