Re: [PATCH v4 00/15] Move HEVC stateless controls out of staging

From: Benjamin Gaignard
Date: Wed Apr 06 2022 - 07:49:38 EST



Le 05/04/2022 à 23:27, Adam Ford a écrit :
On Mon, Apr 4, 2022 at 10:56 AM Benjamin Gaignard
<benjamin.gaignard@xxxxxxxxxxxxx> wrote:

Le 02/04/2022 à 18:59, Adam Ford a écrit :
On Sat, Apr 2, 2022 at 11:22 AM Adam Ford <aford173@xxxxxxxxx> wrote:
On Fri, Apr 1, 2022 at 8:18 AM Benjamin Gaignard
<benjamin.gaignard@xxxxxxxxxxxxx> wrote:
Le 31/03/2022 à 08:53, Benjamin Gaignard a écrit :
Le 30/03/2022 à 20:52, Adam Ford a écrit :
On Wed, Mar 30, 2022 at 2:53 AM Benjamin Gaignard
<benjamin.gaignard@xxxxxxxxxxxxx> wrote:
Le 28/02/2022 à 15:08, Benjamin Gaignard a écrit :
This series aims to make HEVC uapi stable and usable for hardware
decoder. HEVC uapi is used by 2 mainlined drivers (Cedrus and Hantro)
and 2 out of the tree drivers (rkvdec and RPI).

After the remarks done on version 2, I have completely reworked to
patches
split so changelogs are meaningless. I have also drop "RFC" from the
titles.

Version 4:
- Add num_entry_point_offsets field in struct
v4l2_ctrl_hevc_slice_params
- Fix V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSETS name
- Initialize control V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSETS
- Fix space/tab issue in kernel-doc
- Add patch to change data_bit_offset definition
- Fix hantro-media SPDX license
- put controls under stateless section in v4l2-ctrls-defs.c

At the end fluster tests results on IMX8MQ is 77/147 for HEVC codec.
Dear reviewers,

This series is waiting for your feedback,
I tried several times with the suggested repos for both the kernel and
g-streamer without success getting Fluster to pass any tests on the
imx8mq. I can try again but I likely won't get to it until this
weekend. If I can get it working, I'll test both the 8mq and 8mm.
Thanks a lot for that.

Benjamin
Adam,

You may need to check if h265parse and v4l2slh265dec are available on your board.
I ran gst-inspect to see what showed up with 265 in the name.

# gst-inspect-1.0 |grep 265
libav: avdec_h265: libav HEVC (High Efficiency Video Coding) decoder
rtp: rtph265depay: RTP H265 depayloader
rtp: rtph265pay: RTP H265 payloader
typefindfunctions: video/x-h265: h265, x265, 265
v4l2codecs: v4l2slh265dec: V4L2 Stateless H.265 Video Decoder
videoparsersbad: h265parse: H.265 parser

It appears I have both h265parse and v4l2slh265dec.

fluster check if v4l2slh265dec is working fine with this command line:

gst-launch-1.0 appsrc num-buffers=0 ! h265parse ! v4l2slh265dec ! fakesink

so if one of them is missing it won't work.
gst-launch-1.0 appsrc num-buffers=0 ! h265parse ! v4l2slh265dec ! fakesink
Setting pipeline to PAUSED ...
0:00:00.098389938 526 0xaaaaf9d86ac0 ERROR v4l2codecs-decoder
gstv4l2decoder.c:725:gst_v4l2_decoder_get_controls:<v4l2decoder2>
VIDIOC_G_EXT_CTRLS failed: Invalid argument
ERROR: from element
/GstPipeline:pipeline0/v4l2slh265dec:v4l2slh265dec0: Driver did not
report framing and start code method.
Additional debug info:
../subprojects/gst-plugins-bad/sys/v4l2codecs/gstv4l2codech265dec.c(155):
gst_v4l2_codec_h265_dec_open ():
/GstPipeline:pipeline0/v4l2slh265dec:v4l2slh265dec0:
gst_v4l2_decoder_get_controls() failed: Invalid argument
ERROR: pipeline doesn't want to preroll.
ERROR: from element
/GstPipeline:pipeline0/v4l2slh265dec:v4l2slh265dec0: Could not
initialize supporting library.
Additional debug info:
../subprojects/gst-plugins-base/gst-libs/gst/video/gstvideodecoder.c(2909):
gst_video_decoder_change_state ():
/GstPipeline:pipeline0/v4l2slh265dec:v4l2slh265dec0:
Failed to open decoder
ERROR: pipeline doesn't want to preroll.
Failed to set pipeline to PAUSED.
Setting pipeline to NULL ...
Freeing pipeline ...

Does this mean I have a wrong version of the kernel and/or incomplete patches?
I double checked the branches.

Kernel:
https://gitlab.collabora.com/benjamin.gaignard/for-upstream.git
branch: origin/HEVC_UAPI_V4

Gstreamer:
https://gitlab.freedesktop.org/benjamin.gaignard1/gstreamer.git
branch: origin/benjamin.gaignard1/gstreamer-HEVC_aligned_with_kernel_5.15


I am still not able to run h.265/HEVC tests.
Hello Adam,

I have updated the following branches with the versions I have used today:

Kernel:
https://gitlab.collabora.com/benjamin.gaignard/for-upstream.git
branch: origin/HEVC_UAPI_V5 only one change in documentation vs version 4 but rebased in v5.18-rc1

Gstreamer:
https://gitlab.freedesktop.org/benjamin.gaignard1/gstreamer.git
branch: origin/benjamin.gaignard1/gstreamer-HEVC_aligned_with_kernel_5.15 updated on the latest GST main branch

I hope this will work fine this time.
I wish I had better news for you:

dmesg shows the hantro driver is being loaded:

[ 38.612243] hantro-vpu 38300000.video-codec: registered
nxp,imx8mq-vpu-g1-dec as /dev/video0
[ 38.612618] hantro-vpu 38310000.video-codec: registered
nxp,imx8mq-vpu-g2-dec as /dev/video1

# gst-inspect-1.0 |grep 265
libav: avdec_h265: libav HEVC (High Efficiency Video Coding) decoder
rtp: rtph265depay: RTP H265 depayloader
rtp: rtph265pay: RTP H265 payloader
typefindfunctions: video/x-h265: h265, x265, 265
v4l2codecs: v4l2slh265dec: V4L2 Stateless H.265 Video Decoder
videoparsersbad: h265parse: H.265 parser

Fluster reports:
GStreamer-H.265-V4L2SL-Gst1.0: GStreamer H.265 V4L2SL decoder for
GStreamer 1.0... ❌

Still the same error about non supported control ?

Benjamin

adam
Benjamin

adam
adam
Regards,
Benjamin

adam
Thanks,
Benjamin

Benjamin


Benjamin Gaignard (12):
media: uapi: HEVC: Add missing fields in HEVC controls
media: uapi: HEVC: Rename HEVC stateless controls with STATELESS
prefix
media: uapi: HEVC: Add document uAPI structure
media: uapi: HEVC: Define V4L2_CID_STATELESS_HEVC_SLICE_PARAMS
as a
dynamic array
media: uapi: Move parsed HEVC pixel format out of staging
media: uapi: Add V4L2_CID_STATELESS_HEVC_ENTRY_POINT_OFFSETS
control
media: uapi: Move the HEVC stateless control type out of staging
media: controls: Log HEVC stateless control in .std_log
media: uapi: Create a dedicated header for Hantro control
media: uapi: HEVC: fix padding in v4l2 control structures
media: uapi: Change data_bit_offset definition
media: uapi: move HEVC stateless controls out of staging

Hans Verkuil (3):
videodev2.h: add V4L2_CTRL_FLAG_DYNAMIC_ARRAY
v4l2-ctrls: add support for dynamically allocated arrays.
vivid: add dynamic array test control

.../userspace-api/media/drivers/hantro.rst | 5 -
.../media/v4l/ext-ctrls-codec-stateless.rst | 833
++++++++++++++++++
.../media/v4l/ext-ctrls-codec.rst | 780
----------------
.../media/v4l/pixfmt-compressed.rst | 7 +-
.../media/v4l/vidioc-g-ext-ctrls.rst | 20 +
.../media/v4l/vidioc-queryctrl.rst | 8 +
.../media/videodev2.h.rst.exceptions | 5 +
.../media/test-drivers/vivid/vivid-ctrls.c | 15 +
drivers/media/v4l2-core/v4l2-ctrls-api.c | 103 ++-
drivers/media/v4l2-core/v4l2-ctrls-core.c | 198 ++++-
drivers/media/v4l2-core/v4l2-ctrls-defs.c | 37 +-
drivers/media/v4l2-core/v4l2-ctrls-priv.h | 3 +-
drivers/media/v4l2-core/v4l2-ctrls-request.c | 13 +-
drivers/staging/media/hantro/hantro_drv.c | 27 +-
drivers/staging/media/hantro/hantro_hevc.c | 8 +-
drivers/staging/media/sunxi/cedrus/cedrus.c | 24 +-
.../staging/media/sunxi/cedrus/cedrus_dec.c | 10 +-
.../staging/media/sunxi/cedrus/cedrus_h265.c | 2 +-
include/media/hevc-ctrls.h | 250 ------
include/media/v4l2-ctrls.h | 48 +-
include/uapi/linux/hantro-media.h | 19 +
include/uapi/linux/v4l2-controls.h | 439 +++++++++
include/uapi/linux/videodev2.h | 13 +
23 files changed, 1697 insertions(+), 1170 deletions(-)
delete mode 100644 include/media/hevc-ctrls.h
create mode 100644 include/uapi/linux/hantro-media.h