Re: [FFmpeg-devel] [PATCH 1/7] lavu/pixfmt: summarize yuv naming conventions

2022-08-06 Thread Nicolas George
Michael Niedermayer (12022-08-04): > I suspect several filters are somewhat "wrong" > for example hflip fliping 4:1:1 > would turn a: *--- into ---* > where * is teh chroma sample location, i dont think it updates the chroma > sample location metadata nor does it apply some filter to chroma to sh

Re: [FFmpeg-devel] [PATCH 1/7] lavu/pixfmt: summarize yuv naming conventions

2022-08-04 Thread Michael Niedermayer
On Thu, Aug 04, 2022 at 03:57:27PM +0200, Nicolas George wrote: > Michael Niedermayer (12022-08-04): > > You seem to describe samples as rectangular areas of constant value IIUC. > > If you look at the ITU/ISO specs (mpeg2, h264 or others) they are described > > by point samples. The desity of samp

Re: [FFmpeg-devel] [PATCH 1/7] lavu/pixfmt: summarize yuv naming conventions

2022-08-04 Thread Nicolas George
Michael Niedermayer (12022-08-04): > You seem to describe samples as rectangular areas of constant value IIUC. > If you look at the ITU/ISO specs (mpeg2, h264 or others) they are described > by point samples. The desity of samples matches. While the default locations > do not. > What you list above

Re: [FFmpeg-devel] [PATCH 1/7] lavu/pixfmt: summarize yuv naming conventions

2022-08-04 Thread Michael Niedermayer
On Tue, Aug 02, 2022 at 06:54:15PM +0200, Nicolas George wrote: > Signed-off-by: Nicolas George > --- > libavutil/pixfmt.h | 17 + > 1 file changed, 17 insertions(+) > > > Identical to the one I posted last week. > > > diff --git a/libavutil/pixfmt.h b/libavutil/pixfmt.h > ind

[FFmpeg-devel] [PATCH 1/7] lavu/pixfmt: summarize yuv naming conventions

2022-08-02 Thread Nicolas George
Signed-off-by: Nicolas George --- libavutil/pixfmt.h | 17 + 1 file changed, 17 insertions(+) Identical to the one I posted last week. diff --git a/libavutil/pixfmt.h b/libavutil/pixfmt.h index 2d3927cc3f..3d0f92ed4d 100644 --- a/libavutil/pixfmt.h +++ b/libavutil/pixfmt.h @@