Bryan O'Donoghue 7f77fa9f37 media: venus: Fix NV12 decoder buffer discovery on HFI_VERSION_1XX
HFI_VERSION_1XX uses HFI_BUFFER_OUTPUT not HFI_BUFFER_OUTPUT2 for decoder
buffers.

venus_helper_check_format() places a constraint on an output buffer to be
of type HFI_BUFFER_OUTPUT2. HFI_1XX uses HFI_BUFFER_OUTPUT though.

Switching to the logic used in venus_helper_get_out_fmts() first checking
for HFI_BUFFER_OUTPUT and then HFI_BUFFER_OUTPUT2 resolves on HFI_1XX.

db410c before:
root@linaro-alip:~# v4l2-ctl  -d /dev/video0 --list-formats
ioctl: VIDIOC_ENUM_FMT
        Type: Video Capture Multiplanar

        [0]: 'MPG4' (MPEG-4 Part 2 ES, compressed)
        [1]: 'H263' (H.263, compressed)
        [2]: 'H264' (H.264, compressed)
        [3]: 'VP80' (VP8, compressed)

root@linaro-alip:~# v4l2-ctl  -d /dev/video1 --list-formats
ioctl: VIDIOC_ENUM_FMT
        Type: Video Capture Multiplanar

db410c after:
root@linaro-alip:~# v4l2-ctl  -d /dev/video0 --list-formats
ioctl: VIDIOC_ENUM_FMT
        Type: Video Capture Multiplanar

        [0]: 'MPG4' (MPEG-4 Part 2 ES, compressed)
        [1]: 'H263' (H.263, compressed)
        [2]: 'H264' (H.264, compressed)
        [3]: 'VP80' (VP8, compressed)

root@linaro-alip:~# v4l2-ctl  -d /dev/video1 --list-formats
ioctl: VIDIOC_ENUM_FMT
        Type: Video Capture Multiplanar

        [0]: 'NV12' (Y/CbCr 4:2:0)

Validated playback with ffplay on db410c with h264 and vp8 decoding.

Fixes: 9593126dae ("media: venus: Add a handling of QC08C compressed format")
Cc: stable@vger.kernel.org  # v5.19
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2022-09-24 11:21:43 +02:00
2022-08-12 09:07:33 -07:00
2022-08-14 15:50:18 -07:00

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.
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