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author | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-07-27 10:45:04 -0300 |
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committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2016-07-27 10:45:04 -0300 |
commit | 85538b1ad145c67198cb55d02de14ba269cc323d (patch) | |
tree | 409fca93b357839b8c89b7099f2888c087694b64 /Documentation/media/uapi/v4l/pixfmt-yuyv.rst | |
parent | Merge tag 'media/v4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media (diff) | |
parent | [media] cx23885-cardlist.rst: add a new card (diff) | |
download | linux-dev-85538b1ad145c67198cb55d02de14ba269cc323d.tar.xz linux-dev-85538b1ad145c67198cb55d02de14ba269cc323d.zip |
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
...
Diffstat (limited to 'Documentation/media/uapi/v4l/pixfmt-yuyv.rst')
-rw-r--r-- | Documentation/media/uapi/v4l/pixfmt-yuyv.rst | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/Documentation/media/uapi/v4l/pixfmt-yuyv.rst b/Documentation/media/uapi/v4l/pixfmt-yuyv.rst new file mode 100644 index 000000000000..52917dfa9261 --- /dev/null +++ b/Documentation/media/uapi/v4l/pixfmt-yuyv.rst @@ -0,0 +1,205 @@ +.. -*- coding: utf-8; mode: rst -*- + +.. _V4L2-PIX-FMT-YUYV: + +************************** +V4L2_PIX_FMT_YUYV ('YUYV') +************************** + +*man V4L2_PIX_FMT_YUYV(2)* + +Packed format with ½ horizontal chroma resolution, also known as YUV +4:2:2 + + +Description +=========== + +In this format each four bytes is two pixels. Each four bytes is two +Y's, a Cb and a Cr. Each Y goes to one of the pixels, and the Cb and Cr +belong to both pixels. As you can see, the Cr and Cb components have +half the horizontal resolution of the Y component. ``V4L2_PIX_FMT_YUYV`` +is known in the Windows environment as YUY2. + +**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` + + - Cb\ :sub:`00` + + - Y'\ :sub:`01` + + - Cr\ :sub:`00` + + - Y'\ :sub:`02` + + - Cb\ :sub:`01` + + - Y'\ :sub:`03` + + - Cr\ :sub:`01` + + - .. row 2 + + - start + 8: + + - Y'\ :sub:`10` + + - Cb\ :sub:`10` + + - Y'\ :sub:`11` + + - Cr\ :sub:`10` + + - Y'\ :sub:`12` + + - Cb\ :sub:`11` + + - Y'\ :sub:`13` + + - Cr\ :sub:`11` + + - .. row 3 + + - start + 16: + + - Y'\ :sub:`20` + + - Cb\ :sub:`20` + + - Y'\ :sub:`21` + + - Cr\ :sub:`20` + + - Y'\ :sub:`22` + + - Cb\ :sub:`21` + + - Y'\ :sub:`23` + + - Cr\ :sub:`21` + + - .. row 4 + + - start + 24: + + - Y'\ :sub:`30` + + - Cb\ :sub:`30` + + - Y'\ :sub:`31` + + - Cr\ :sub:`30` + + - Y'\ :sub:`32` + + - Cb\ :sub:`31` + + - Y'\ :sub:`33` + + - Cr\ :sub:`31` + + +**Color Sample Location..** + + + +.. flat-table:: + :header-rows: 0 + :stub-columns: 0 + + + - .. row 1 + + - + - 0 + + - + - 1 + + - + - 2 + + - + - 3 + + - .. row 2 + + - 0 + + - Y + + - C + + - Y + + - + - Y + + - C + + - Y + + - .. row 3 + + - 1 + + - Y + + - C + + - Y + + - + - Y + + - C + + - Y + + - .. row 4 + + - 2 + + - Y + + - C + + - Y + + - + - Y + + - C + + - Y + + - .. row 5 + + - 3 + + - Y + + - C + + - Y + + - + - Y + + - C + + - Y |