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G2/HEVC is broken because driver capture queue pixelformat ioctl G_FMT
returns VT12 while G2/HEVC always generate NV12 frames:
video1: VIDIOC_S_FMT: type=vid-out-mplane, width=2560, height=1600, format=S265 little-endian (0x35363253), field=none, colorspace=0, num_planes=1, flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0
plane 0: bytesperline=0 sizeimage=6144000
video1: VIDIOC_S_EXT_CTRLS: which=0x0, count=1, error_idx=0, request_fd=0, name=HEVC Sequence Parameter Set, id/size=0x990cf0/32
video1: VIDIOC_G_FMT: type=vid-cap-mplane, width=2560, height=1600, format=VT12 little-endian (0x32315456), field=none, colorspace=0, num_planes=1, flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0
plane 0: bytesperline=2560 sizeimage=6144000
video1: VIDIOC_ENUM_FMT: index=0, type=vid-cap-mplane, flags=0x0, pixelformat=NV12 little-endian (0x3231564e), mbus_code=0x0000, description='Y/CbCr 4:2:0'
video1: VIDIOC_ENUM_FMT: error -22: index=1, type=vid-cap-mplane, flags=0x0, pixelformat=.... little-endian (0x00000000), mbus_code=0x0000, description=''
video1: VIDIOC_G_FMT: type=vid-cap-mplane, width=2560, height=1600, format=VT12 little-endian (0x32315456), field=none, colorspace=0, num_planes=1, flags=0x0, ycbcr_enc=0, quantization=0, xfer_func=0
Use the postprocessor functions introduced by Hantro G2/VP9 codec series
to fix the issue and remove duplicated buffer management.
This allow Hantro G2/HEVC to produce NV12_4L4 and NV12.
Fluster scores are 77/147 for HEVC and 129/303 for VP9 (no regression).
Beauty, Jockey and ShakeNDry bitstreams from UVG (http://ultravideo.fi/)
set have also been tested.
Fixes:
|
History
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|---|---|---|
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
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| COPYING | ||
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| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.