On Mon, Jun 27, 2022 at 9:48 AM James Almer wrote:
>
> On 6/27/2022 1:43 PM, Vignesh Venkatasubramanian wrote:
> > On Tue, Jun 21, 2022 at 10:12 AM Vignesh Venkatasubramanian
> > wrote:
> >>
> >> On Mon, Jun 13, 2022 at 10:17 AM James Zern
> >> wrote:
> >>>
> >>> On Wed, Jun 1, 2022 at 11:06 AM
On Mon, Jun 27, 2022 at 9:48 AM James Almer wrote:
>
> On 6/27/2022 1:43 PM, Vignesh Venkatasubramanian wrote:
> > On Tue, Jun 21, 2022 at 10:12 AM Vignesh Venkatasubramanian
> > wrote:
> >>
> >> On Mon, Jun 13, 2022 at 10:17 AM James Zern
> >> wrote:
> >>>
> >>> On Wed, Jun 1, 2022 at 11:06 AM
On 6/27/2022 1:43 PM, Vignesh Venkatasubramanian wrote:
On Tue, Jun 21, 2022 at 10:12 AM Vignesh Venkatasubramanian
wrote:
On Mon, Jun 13, 2022 at 10:17 AM James Zern
wrote:
On Wed, Jun 1, 2022 at 11:06 AM Vignesh Venkatasubramanian
wrote:
AVIF specification allows for alpha channel as a
On Tue, Jun 21, 2022 at 10:12 AM Vignesh Venkatasubramanian
wrote:
>
> On Mon, Jun 13, 2022 at 10:17 AM James Zern
> wrote:
> >
> > On Wed, Jun 1, 2022 at 11:06 AM Vignesh Venkatasubramanian
> > wrote:
> > >
> > > AVIF specification allows for alpha channel as an auxiliary item (in
> > > case of
On Mon, Jun 13, 2022 at 10:17 AM James Zern
wrote:
>
> On Wed, Jun 1, 2022 at 11:06 AM Vignesh Venkatasubramanian
> wrote:
> >
> > AVIF specification allows for alpha channel as an auxiliary item (in
> > case of still images) or as an auxiliary track (in case of animated
> > images). Add support
On Wed, Jun 1, 2022 at 11:06 AM Vignesh Venkatasubramanian
wrote:
>
> AVIF specification allows for alpha channel as an auxiliary item (in
> case of still images) or as an auxiliary track (in case of animated
> images). Add support for both of these. The AVIF muxer will take
> exactly two streams
On Mon, Jun 6, 2022 at 9:29 AM Vignesh Venkatasubramanian
wrote:
>
> On Wed, Jun 1, 2022 at 12:47 PM Vignesh Venkatasubramanian
> wrote:
> >
> > On Wed, Jun 1, 2022 at 11:52 AM xyesbee wrote:
> > >
> > > Why can it not accept it as one but two distinct streams? Why the extra
> > > hurdle of alp
On Wed, Jun 1, 2022 at 12:47 PM Vignesh Venkatasubramanian
wrote:
>
> On Wed, Jun 1, 2022 at 11:52 AM xyesbee wrote:
> >
> > Why can it not accept it as one but two distinct streams? Why the extra
> > hurdle of alphaextract? YUVA pixel format exists though.
>
> Yes, while the YUVA pixel formats
On Wed, Jun 1, 2022 at 11:52 AM xyesbee wrote:
>
> Why can it not accept it as one but two distinct streams? Why the extra
> hurdle of alphaextract? YUVA pixel format exists though.
Yes, while the YUVA pixel formats exist, AVIF specification requires
alpha channel to be a separate track (i.e.) w
On Wed, Jun 1, 2022 at 10:52 AM James Zern wrote:
>
> On Wed, May 18, 2022 at 2:56 PM Vignesh Venkatasubramanian
> wrote:
> >
> > AVIF specification allows for alpha channel as an auxillary item (in
>
> auxiliary
>
Done.
> > case of still images) or as an auxillary track (in case of animated
>
On Wed, May 18, 2022 at 2:56 PM Vignesh Venkatasubramanian
wrote:
>
> AVIF specification allows for alpha channel as an auxillary item (in
auxiliary
> case of still images) or as an auxillary track (in case of animated
> images). Add support for both of these. The AVIF muxer will take
> exactly
On Thu, May 19, 2022 at 9:08 AM Vignesh Venkatasubramanian
wrote:
>
> On Wed, May 18, 2022 at 7:36 PM Bang He wrote:
> >
> > error happened:
> >
> > ./ffmpeg -i alpha.png -filter_complex [0:v]alphaextract[a] -map 0 -map [a]
> > -still-picture 1 avif_with_alpha.avif
> > ffmpeg version N-106936-gff
On Wed, May 18, 2022 at 7:36 PM Bang He wrote:
>
> error happened:
>
> ./ffmpeg -i alpha.png -filter_complex [0:v]alphaextract[a] -map 0 -map [a]
> -still-picture 1 avif_with_alpha.avif
> ffmpeg version N-106936-gff5ea89da2 Copyright (c) 2000-2022 the FFmpeg
> developers
> built with gcc 11 (Ubu
error happened:
./ffmpeg -i alpha.png -filter_complex [0:v]alphaextract[a] -map 0 -map [a]
-still-picture 1 avif_with_alpha.avif
ffmpeg version N-106936-gff5ea89da2 Copyright (c) 2000-2022 the FFmpeg
developers
built with gcc 11 (Ubuntu 11.2.0-19ubuntu1)
configuration: --disable-ffplay --disab
some error happened:
On Thu, May 19, 2022 at 5:56 AM Vignesh Venkatasubramanian <
vigneshv-at-google@ffmpeg.org> wrote:
> AVIF specification allows for alpha channel as an auxillary item (in
> case of still images) or as an auxillary track (in case of animated
> images). Add support for both
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