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Diffstat (limited to 'Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst')
| -rw-r--r-- | Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst b/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst index 9a969f662595..cc3e4b5791c5 100644 --- a/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst +++ b/Documentation/userspace-api/media/v4l/pixfmt-yuv-planar.rst @@ -257,6 +257,8 @@ of the luma plane. .. _V4L2-PIX-FMT-NV12-4L4: .. _V4L2-PIX-FMT-NV12-16L16: .. _V4L2-PIX-FMT-NV12-32L32: +.. _V4L2_PIX_FMT_NV12M_8L128: +.. _V4L2_PIX_FMT_NV12M_10BE_8L128: Tiled NV12 ---------- @@ -281,21 +283,41 @@ If the vertical resolution is an odd number of tiles, the last row of tiles is stored in linear order. The layouts of the luma and chroma planes are identical. -``V4L2_PIX_FMT_NV12_4L4`` stores pixel in 4x4 tiles, and stores +``V4L2_PIX_FMT_NV12_4L4`` stores pixels in 4x4 tiles, and stores tiles linearly in memory. The line stride and image height must be aligned to a multiple of 4. The layouts of the luma and chroma planes are identical. -``V4L2_PIX_FMT_NV12_16L16`` stores pixel in 16x16 tiles, and stores +``V4L2_PIX_FMT_NV12_16L16`` stores pixels in 16x16 tiles, and stores tiles linearly in memory. The line stride and image height must be aligned to a multiple of 16. The layouts of the luma and chroma planes are identical. -``V4L2_PIX_FMT_NV12_32L32`` stores pixel in 32x32 tiles, and stores +``V4L2_PIX_FMT_NV12_32L32`` stores pixels in 32x32 tiles, and stores tiles linearly in memory. The line stride and image height must be aligned to a multiple of 32. The layouts of the luma and chroma planes are identical. +``V4L2_PIX_FMT_NV12M_8L128`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores +pixels in 2D 8x128 tiles, and stores tiles linearly in memory. +The image height must be aligned to a multiple of 128. +The layouts of the luma and chroma planes are identical. + +``V4L2_PIX_FMT_NV12M_10BE_8L128`` is similar to ``V4L2_PIX_FMT_NV12M`` but stores +10 bits pixels in 2D 8x128 tiles, and stores tiles linearly in memory. +the data is arranged in big endian order. +The image height must be aligned to a multiple of 128. +The layouts of the luma and chroma planes are identical. +Note the tile size is 8bytes multiplied by 128 bytes, +it means that the low bits and high bits of one pixel may be in different tiles. +The 10 bit pixels are packed, so 5 bytes contain 4 10-bit pixels layout like +this (for luma): +byte 0: Y0(bits 9-2) +byte 1: Y0(bits 1-0) Y1(bits 9-4) +byte 2: Y1(bits 3-0) Y2(bits 9-6) +byte 3: Y2(bits 5-0) Y3(bits 9-8) +byte 4: Y3(bits 7-0) + ``V4L2_PIX_FMT_MM21`` store luma pixel in 16x32 tiles, and chroma pixels in 16x16 tiles. The line stride must be aligned to a multiple of 16 and the image height must be aligned to a multiple of 32. The number of luma and chroma |