From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: AndrĂ© Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- Documentation/DocBook/media/v4l/pixfmt-nv16m.xml | 170 +++++++++++++++++++++++ 1 file changed, 170 insertions(+) create mode 100644 Documentation/DocBook/media/v4l/pixfmt-nv16m.xml (limited to 'Documentation/DocBook/media/v4l/pixfmt-nv16m.xml') diff --git a/Documentation/DocBook/media/v4l/pixfmt-nv16m.xml b/Documentation/DocBook/media/v4l/pixfmt-nv16m.xml new file mode 100644 index 000000000..fb2b5e35d --- /dev/null +++ b/Documentation/DocBook/media/v4l/pixfmt-nv16m.xml @@ -0,0 +1,170 @@ + + + V4L2_PIX_FMT_NV16M ('NM16'), V4L2_PIX_FMT_NV61M ('NM61') + &manvol; + + + V4L2_PIX_FMT_NV16M + V4L2_PIX_FMT_NV61M + Variation of V4L2_PIX_FMT_NV16 and V4L2_PIX_FMT_NV61 with planes + non contiguous in memory. + + + Description + + This is a multi-planar, two-plane version of the YUV 4:2:2 format. +The three components are separated into two sub-images or planes. +V4L2_PIX_FMT_NV16M differs from V4L2_PIX_FMT_NV16 + in that the two planes are non-contiguous in memory, i.e. the chroma +plane does not necessarily immediately follow the luma plane. +The luminance data occupies the first plane. The Y plane has one byte per pixel. +In the second plane there is chrominance data with alternating chroma samples. +The CbCr plane is the same width and height, in bytes, as the Y plane. +Each CbCr pair belongs to two pixels. For example, +Cb0/Cr0 belongs to +Y'00, Y'01. +V4L2_PIX_FMT_NV61M is the same as V4L2_PIX_FMT_NV16M +except the Cb and Cr bytes are swapped, the CrCb plane starts with a Cr byte. + + V4L2_PIX_FMT_NV16M and +V4L2_PIX_FMT_NV61M are intended to be used only in drivers +and applications that support the multi-planar API, described in +. + + + <constant>V4L2_PIX_FMT_NV16M</constant> 4 × 4 pixel image + + + Byte Order. + Each cell is one byte. + + + + + + start0 + 0: + Y'00 + Y'01 + Y'02 + Y'03 + + + start0 + 4: + Y'10 + Y'11 + Y'12 + Y'13 + + + start0 + 8: + Y'20 + Y'21 + Y'22 + Y'23 + + + start0 + 12: + Y'30 + Y'31 + Y'32 + Y'33 + + + + + + start1 + 0: + Cb00 + Cr00 + Cb02 + Cr02 + + + start1 + 4: + Cb10 + Cr10 + Cb12 + Cr12 + + + start1 + 8: + Cb20 + Cr20 + Cb22 + Cr22 + + + start1 + 12: + Cb30 + Cr30 + Cb32 + Cr32 + + + + + + + + + Color Sample Location. + + + + + + + 01 + 23 + + + 0 + YY + YY + + + + C + C + + + 1 + YY + YY + + + + C + C + + + + + + 2 + YY + YY + + + + C + C + + + 3 + YY + YY + + + + C + C + + + + + + + + + -- cgit v1.2.3-54-g00ecf