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author | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-07-27 16:45:04 +0300 |
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committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-07-27 16:45:04 +0300 |
commit | 85538b1ad145c67198cb55d02de14ba269cc323d (patch) | |
tree | 409fca93b357839b8c89b7099f2888c087694b64 /Documentation/media/uapi/v4l/pixfmt-nv24.rst | |
parent | 9c1958fc326a0a0a533ec8e86ea6fa30977207de (diff) | |
parent | d271d3d9b333c94cd54a12fa506e17772a04617c (diff) | |
download | linux-85538b1ad145c67198cb55d02de14ba269cc323d.tar.xz |
Merge branch 'topic/docs-next' into v4l_for_linus
* topic/docs-next: (322 commits)
[media] cx23885-cardlist.rst: add a new card
[media] doc-rst: add some needed escape codes
[media] doc-rst: kapi: use :c:func: instead of :cpp:func
doc-rst: kernel-doc: fix a change introduced by mistake
[media] v4l2-ioctl.h add debug info for struct v4l2_ioctl_ops
[media] dvb_ringbuffer.h: some documentation improvements
[media] v4l2-ctrls.h: fully document the header file
[media] doc-rst: Fix some typedef ugly warnings
[media] doc-rst: reorganize the kAPI v4l2 chapters
[media] rename v4l2-framework.rst to v4l2-intro.rst
[media] move V4L2 clocks to a separate .rst file
[media] v4l2-fh.rst: add cross references and markups
[media] v4l2-fh.rst: add fh contents from v4l2-framework.rst
[media] v4l2-fh.h: add documentation for it
[media] v4l2-event.rst: add cross-references and markups
[media] v4l2-event.h: document all functions
[media] v4l2-event.rst: add text from v4l2-framework.rst
[media] v4l2-framework.rst: remove videobuf quick chapter
[media] v4l2-dev: add cross-references and improve markup
[media] doc-rst: move v4l2-dev doc to a separate file
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Diffstat (limited to 'Documentation/media/uapi/v4l/pixfmt-nv24.rst')
-rw-r--r-- | Documentation/media/uapi/v4l/pixfmt-nv24.rst | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/Documentation/media/uapi/v4l/pixfmt-nv24.rst b/Documentation/media/uapi/v4l/pixfmt-nv24.rst new file mode 100644 index 000000000000..db98f476446e --- /dev/null +++ b/Documentation/media/uapi/v4l/pixfmt-nv24.rst @@ -0,0 +1,171 @@ +.. -*- coding: utf-8; mode: rst -*- + +.. _V4L2-PIX-FMT-NV24: +.. _V4L2-PIX-FMT-NV42: + +****************************************************** +V4L2_PIX_FMT_NV24 ('NV24'), V4L2_PIX_FMT_NV42 ('NV42') +****************************************************** + +*man V4L2_PIX_FMT_NV24(2)* + +V4L2_PIX_FMT_NV42 +Formats with full horizontal and vertical chroma resolutions, also known +as YUV 4:4:4. One luminance and one chrominance plane with alternating +chroma samples as opposed to ``V4L2_PIX_FMT_YVU420`` + + +Description +=========== + +These are two-plane versions of the YUV 4:4:4 format. The three +components are separated into two sub-images or planes. The Y plane is +first, with each Y sample stored in one byte per pixel. For +``V4L2_PIX_FMT_NV24``, a combined CbCr plane immediately follows the Y +plane in memory. The CbCr plane has the same width and height, in +pixels, as the Y plane (and the image). Each line contains one CbCr pair +per pixel, with each Cb and Cr sample stored in one byte. +``V4L2_PIX_FMT_NV42`` is the same except that the Cb and Cr samples are +swapped, the CrCb plane starts with a Cr sample. + +If the Y plane has pad bytes after each row, then the CbCr plane has +twice as many pad bytes after its rows. + +**Byte Order.** +Each cell is one byte. + + + +.. flat-table:: + :header-rows: 0 + :stub-columns: 0 + :widths: 2 1 1 1 1 1 1 1 1 + + + - .. row 1 + + - start + 0: + + - Y'\ :sub:`00` + + - Y'\ :sub:`01` + + - Y'\ :sub:`02` + + - Y'\ :sub:`03` + + - .. row 2 + + - start + 4: + + - Y'\ :sub:`10` + + - Y'\ :sub:`11` + + - Y'\ :sub:`12` + + - Y'\ :sub:`13` + + - .. row 3 + + - start + 8: + + - Y'\ :sub:`20` + + - Y'\ :sub:`21` + + - Y'\ :sub:`22` + + - Y'\ :sub:`23` + + - .. row 4 + + - start + 12: + + - Y'\ :sub:`30` + + - Y'\ :sub:`31` + + - Y'\ :sub:`32` + + - Y'\ :sub:`33` + + - .. row 5 + + - start + 16: + + - Cb\ :sub:`00` + + - Cr\ :sub:`00` + + - Cb\ :sub:`01` + + - Cr\ :sub:`01` + + - Cb\ :sub:`02` + + - Cr\ :sub:`02` + + - Cb\ :sub:`03` + + - Cr\ :sub:`03` + + - .. row 6 + + - start + 24: + + - Cb\ :sub:`10` + + - Cr\ :sub:`10` + + - Cb\ :sub:`11` + + - Cr\ :sub:`11` + + - Cb\ :sub:`12` + + - Cr\ :sub:`12` + + - Cb\ :sub:`13` + + - Cr\ :sub:`13` + + - .. row 7 + + - start + 32: + + - Cb\ :sub:`20` + + - Cr\ :sub:`20` + + - Cb\ :sub:`21` + + - Cr\ :sub:`21` + + - Cb\ :sub:`22` + + - Cr\ :sub:`22` + + - Cb\ :sub:`23` + + - Cr\ :sub:`23` + + - .. row 8 + + - start + 40: + + - Cb\ :sub:`30` + + - Cr\ :sub:`30` + + - Cb\ :sub:`31` + + - Cr\ :sub:`31` + + - Cb\ :sub:`32` + + - Cr\ :sub:`32` + + - Cb\ :sub:`33` + + - Cr\ :sub:`33` |