[FFmpeg-devel] [PATCH] avformat/nut: add float pixel formats support

Michael Niedermayer michael at niedermayer.cc
Sun Apr 17 15:54:58 EEST 2022


On Fri, Apr 15, 2022 at 11:57:19AM +0200, Paul B Mahol wrote:
> Signed-off-by: Paul B Mahol <onemda at gmail.com>
> ---
>  libavcodec/raw.c                         |  9 +++++++++
>  libavformat/nut.c                        |  9 +++++++++
>  tests/ref/fate/filter-pixdesc-gbrapf32be |  2 +-
>  tests/ref/fate/filter-pixdesc-gbrapf32le |  2 +-
>  tests/ref/fate/filter-pixdesc-gbrpf32be  |  2 +-
>  tests/ref/fate/filter-pixdesc-gbrpf32le  |  2 +-
>  tests/ref/fate/filter-pixdesc-grayf32be  |  2 +-
>  tests/ref/fate/filter-pixdesc-grayf32le  |  2 +-
>  tests/ref/fate/filter-pixfmts-copy       | 12 ++++++------
>  tests/ref/fate/filter-pixfmts-crop       | 12 ++++++------
>  tests/ref/fate/filter-pixfmts-field      | 12 ++++++------
>  tests/ref/fate/filter-pixfmts-fieldorder | 12 ++++++------
>  tests/ref/fate/filter-pixfmts-hflip      | 12 ++++++------
>  tests/ref/fate/filter-pixfmts-il         | 12 ++++++------
>  tests/ref/fate/filter-pixfmts-null       | 12 ++++++------
>  tests/ref/fate/filter-pixfmts-scale      | 12 ++++++------
>  tests/ref/fate/filter-pixfmts-transpose  | 12 ++++++------
>  tests/ref/fate/filter-pixfmts-vflip      | 12 ++++++------
>  18 files changed, 84 insertions(+), 66 deletions(-)
> 
> diff --git a/libavcodec/raw.c b/libavcodec/raw.c
> index a371bb36c4..2f23e8632d 100644
> --- a/libavcodec/raw.c
> +++ b/libavcodec/raw.c
> @@ -165,6 +165,9 @@ static const PixelFormatTag raw_pix_fmt_tags[] = {
>      { AV_PIX_FMT_YA8,         MKTAG('Y', '2',  0 ,  8 ) },
>      { AV_PIX_FMT_PAL8,        MKTAG('P', 'A', 'L',  8 ) },
>  
> +    { AV_PIX_FMT_GRAYF32LE,    MKTAG('Y', '1',  0 , 32 ) },
> +    { AV_PIX_FMT_GRAYF32BE,    MKTAG(32 ,  0 , '1', 'Y') },


I think it should be 33
from nut4cc.txt
"The fourth byte is the number of bits used (8, 16, ...).
 33 implies 32bit IEEE floats (33 is used to leave 32 for integers)"

thx
 
[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

It is a danger to trust the dream we wish for rather than
the science we have, -- Dr. Kenneth Brown
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 195 bytes
Desc: not available
URL: <https://ffmpeg.org/pipermail/ffmpeg-devel/attachments/20220417/8b959f0c/attachment.sig>


More information about the ffmpeg-devel mailing list