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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
| commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
| tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /Documentation/media/v4l-drivers/fourcc.rst | |
| parent | Initial commit. (diff) | |
| download | linux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip | |
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/media/v4l-drivers/fourcc.rst')
| -rw-r--r-- | Documentation/media/v4l-drivers/fourcc.rst | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/Documentation/media/v4l-drivers/fourcc.rst b/Documentation/media/v4l-drivers/fourcc.rst new file mode 100644 index 000000000..9c82106e8 --- /dev/null +++ b/Documentation/media/v4l-drivers/fourcc.rst @@ -0,0 +1,30 @@ +Guidelines for Video4Linux pixel format 4CCs +============================================ + +Guidelines for Video4Linux 4CC codes defined using v4l2_fourcc() are +specified in this document. First of the characters defines the nature of +the pixel format, compression and colour space. The interpretation of the +other three characters depends on the first one. + +Existing 4CCs may not obey these guidelines. + +Raw bayer +--------- + +The following first characters are used by raw bayer formats: + +- B: raw bayer, uncompressed +- b: raw bayer, DPCM compressed +- a: A-law compressed +- u: u-law compressed + +2nd character: pixel order + +- B: BGGR +- G: GBRG +- g: GRBG +- R: RGGB + +3rd character: uncompressed bits-per-pixel 0--9, A-- + +4th character: compressed bits-per-pixel 0--9, A-- |