[FFmpeg-devel] [PATCH 2/9] swscale: Add swscale input support for Y210LE

[Fu, Linjie]

> -----Original Message-----
> From: ffmpeg-devel <ffmpeg-devel-bounces at ffmpeg.org> On Behalf Of
> Carl Eugen Hoyos
> Sent: Thursday, January 16, 2020 19:38
> To: FFmpeg development discussions and patches <ffmpeg-
> devel at ffmpeg.org>
> Subject: Re: [FFmpeg-devel] [PATCH 2/9] swscale: Add swscale input support
> for Y210LE
> 
> Am Do., 16. Jan. 2020 um 07:49 Uhr schrieb Fu, Linjie <linjie.fu at intel.com>:
> >
> > > -----Original Message-----
> > > From: ffmpeg-devel <ffmpeg-devel-bounces at ffmpeg.org> On Behalf Of
> > > Carl Eugen Hoyos
> > > Sent: Thursday, January 16, 2020 02:30
> > > To: FFmpeg development discussions and patches <ffmpeg-
> > > devel at ffmpeg.org>
> > > Subject: Re: [FFmpeg-devel] [PATCH 2/9] swscale: Add swscale input
> support
> > > for Y210LE
> > >
> > > Am Mi., 15. Jan. 2020 um 07:59 Uhr schrieb Linjie Fu <linjie.fu at intel.com>:
> > > >
> > > > Add swscale input support for Y210LE, output support and fate
> > > > test could be added later if there is requirement for software
> > > > CSC to this packed format.
> > >
> > > Please confirm that this works as expected on big-endian hardware.
> > >
> > If I understood correctly,  the concern is whether it works for Y210 software
> scale
> > on big-endian hardware, and whether it would break fate.
> 
> Exactly.
> Just confirm (either in the commit message or via mail) that you tested it.

Hi,

All fate tests passed on big-endian environment(ppc 64) except for the known dnn breaks.

(finally figured out to get access to a Power 8 with RHEL 7.2 ppc64, and
Configure ffmpeg with  --arch=ppc --enable-altivec --samples=fate-suite)

# lscpu
Architecture:          ppc64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Big Endian

The swscale works for y210le. (-pix_fmt y210le -i input.yuv ... -pix_fmt p010le)

And for y210(-pix_fmt y210 -i input.yuv), since we didn't declare the capability of  y210be,
it is not able to convert to other format as expected.

If there are more tests needed, please help to comment, thanks.