Re: [FFmpeg-devel] [PATCH 1/2] avutil/parseutils: add qhd(Quad HD) or wqhd(Wide Quad HD) for 1440p

Re: [FFmpeg-devel] [PATCH 1/2] avutil/parseutils: add qhd(Quad HD) or wqhd(Wide Quad HD) for 1440p

[Andreas Rheinhardt]

lance.lmwang@gmail.com:
> From: Limin Wang <lance.lmwang@gmail.com>
> 
> Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
> ---
>  libavutil/parseutils.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/libavutil/parseutils.c b/libavutil/parseutils.c
> index 7f678cd..19bbdde 100644
> --- a/libavutil/parseutils.c
> +++ b/libavutil/parseutils.c
> @@ -102,6 +102,7 @@ static const VideoSizeAbbr video_size_abbrs[] = {
>      { "wsxga",    1600,1024 },
>      { "wuxga",    1920,1200 },
>      { "woxga",    2560,1600 },
> +    { "wqhd",     2560,1440 },
>      { "wqsxga",   3200,2048 },
>      { "wquxga",   3840,2400 },
>      { "whsxga",   6400,4096 },
> @@ -111,6 +112,7 @@ static const VideoSizeAbbr video_size_abbrs[] = {
>      { "hd480",     852, 480 },
>      { "hd720",    1280, 720 },
>      { "hd1080",   1920,1080 },
> +    { "qhd",      2560,1440 },
>      { "2k",       2048,1080 }, /* Digital Cinema System Specification */
>      { "2kdci",    2048,1080 },
>      { "2kflat",   1998,1080 },
> 

This code added a second qhd abbreviation to this list; it precedes and
therefore overrides the earlier dimension of 960x540. Ticket #9591 is
about this.
According to Wikipedia, qHD is 960x540 (q stands for quarter in this
case) and QHD is 2560x1440 (Q is quad). So maybe an ad-hoc check for
this would be appropriate?

- Andreas
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Re: [FFmpeg-devel] [PATCH 1/2] avutil/parseutils: add qhd(Quad HD) or wqhd(Wide Quad HD) for 1440p

[lance.lmwang]

On Mon, Jan 10, 2022 at 07:16:50PM +0100, Andreas Rheinhardt wrote:
> lance.lmwang@gmail.com:
> > From: Limin Wang <lance.lmwang@gmail.com>
> > 
> > Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
> > ---
> >  libavutil/parseutils.c | 2 ++
> >  1 file changed, 2 insertions(+)
> > 
> > diff --git a/libavutil/parseutils.c b/libavutil/parseutils.c
> > index 7f678cd..19bbdde 100644
> > --- a/libavutil/parseutils.c
> > +++ b/libavutil/parseutils.c
> > @@ -102,6 +102,7 @@ static const VideoSizeAbbr video_size_abbrs[] = {
> >      { "wsxga",    1600,1024 },
> >      { "wuxga",    1920,1200 },
> >      { "woxga",    2560,1600 },
> > +    { "wqhd",     2560,1440 },
> >      { "wqsxga",   3200,2048 },
> >      { "wquxga",   3840,2400 },
> >      { "whsxga",   6400,4096 },
> > @@ -111,6 +112,7 @@ static const VideoSizeAbbr video_size_abbrs[] = {
> >      { "hd480",     852, 480 },
> >      { "hd720",    1280, 720 },
> >      { "hd1080",   1920,1080 },
> > +    { "qhd",      2560,1440 },
> >      { "2k",       2048,1080 }, /* Digital Cinema System Specification */
> >      { "2kdci",    2048,1080 },
> >      { "2kflat",   1998,1080 },
> > 
> 
> This code added a second qhd abbreviation to this list; it precedes and
> therefore overrides the earlier dimension of 960x540. Ticket #9591 is
> about this.
> According to Wikipedia, qHD is 960x540 (q stands for quarter in this
> case) and QHD is 2560x1440 (Q is quad). So maybe an ad-hoc check for
> this would be appropriate?

Sorry, I'll change the qhd to quadhd to avoid the name conflict.

> 
> - Andreas
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> ffmpeg-devel mailing list
> ffmpeg-devel@ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> 
> To unsubscribe, visit link above, or email
> ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".

-- 
Thanks,
Limin Wang
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