[PATCH v6 0/4] media: meson: vdec: Add compliant H264 support

From: Neil Armstrong
Date: Wed Feb 19 2020 - 09:02:09 EST

Hello,

This patch series aims to bring H.264 support as well as compliance update
to the amlogic stateful video decoder driver.

The issue in the V1 patchset at [1] is solved by patch #1 following comments
and requirements from hans. It moves the full draining & stopped state tracking
and handling from vicodec to core v4l2-mem2mem.

The vicodec changes still passes the v4l2-utils "media-test" tests, log at [5]:
[...]
vicodec media controller compliance tests

Thu Jan 16 13:00:56 UTC 2020
v4l2-compliance SHA: 7ead0e1856b89f2e19369af452bb03fd0cd16793, 64 bits
[...]
Summary:

Total for vicodec device /dev/media3: 7, Succeeded: 7, Failed: 0, Warnings: 0
Total for vicodec device /dev/video13: 51, Succeeded: 51, Failed: 0, Warnings: 0
Total for vicodec device /dev/video14: 51, Succeeded: 51, Failed: 0, Warnings: 0
Total for vicodec device /dev/video14: 51, Succeeded: 51, Failed: 0, Warnings: 0
Total for vicodec device /dev/video14: 51, Succeeded: 51, Failed: 0, Warnings: 0
Total for vicodec device /dev/video14: 51, Succeeded: 51, Failed: 0, Warnings: 0
Total for vicodec device /dev/video14: 51, Succeeded: 51, Failed: 0, Warnings: 0
Total for vicodec device /dev/video14: 51, Succeeded: 51, Failed: 0, Warnings: 0

Final Summary: 364, Succeeded: 364, Failed: 0, Warnings: 0
Thu Jan 16 13:02:59 UTC 2020

With this, it also passes vdec v4l2-compliance with H264 streaming on Amlogic G12A
and Amlogic SM1 SoCs successfully.

The compliance log is:
# v4l2-compliance --stream-from-hdr test-25fps.h264.hdr -s
v4l2-compliance SHA: 7ead0e1856b89f2e19369af452bb03fd0cd16793, 64 bits

Compliance test for meson-vdec device /dev/video0:

Driver Info:
Driver name : meson-vdec
Card type : Amlogic Video Decoder
Bus info : platform:meson-vdec
Driver version : 5.5.0
Capabilities : 0x84204000
Video Memory-to-Memory Multiplanar
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04204000
Video Memory-to-Memory Multiplanar
Streaming
Extended Pix Format
Detected Stateful Decoder

Required ioctls:
test VIDIOC_QUERYCAP: OK

Allow for multiple opens:
test second /dev/video19 open: OK
test VIDIOC_QUERYCAP: OK
test VIDIOC_G/S_PRIORITY: OK
test for unlimited opens: OK

Debug ioctls:
test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported)
test VIDIOC_LOG_STATUS: OK (Not Supported)

Input ioctls:
test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported)
test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported)
test VIDIOC_ENUMAUDIO: OK (Not Supported)
test VIDIOC_G/S/ENUMINPUT: OK (Not Supported)
test VIDIOC_G/S_AUDIO: OK (Not Supported)
Inputs: 0 Audio Inputs: 0 Tuners: 0

Output ioctls:
test VIDIOC_G/S_MODULATOR: OK (Not Supported)
test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
test VIDIOC_ENUMAUDOUT: OK (Not Supported)
test VIDIOC_G/S/ENUMOUTPUT: OK (Not Supported)
test VIDIOC_G/S_AUDOUT: OK (Not Supported)
Outputs: 0 Audio Outputs: 0 Modulators: 0

Input/Output configuration ioctls:
test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported)
test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported)
test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported)
test VIDIOC_G/S_EDID: OK (Not Supported)

Control ioctls:
test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK
test VIDIOC_QUERYCTRL: OK
test VIDIOC_G/S_CTRL: OK
test VIDIOC_G/S/TRY_EXT_CTRLS: OK
test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK
test VIDIOC_G/S_JPEGCOMP: OK (Not Supported)
Standard Controls: 2 Private Controls: 0

Format ioctls:
test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK
test VIDIOC_G/S_PARM: OK (Not Supported)
test VIDIOC_G_FBUF: OK (Not Supported)
test VIDIOC_G_FMT: OK
test VIDIOC_TRY_FMT: OK
test VIDIOC_S_FMT: OK
test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported)
test Cropping: OK (Not Supported)
test Composing: OK (Not Supported)
test Scaling: OK (Not Supported)

Codec ioctls:
test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported)
test VIDIOC_G_ENC_INDEX: OK (Not Supported)
test VIDIOC_(TRY_)DECODER_CMD: OK

Buffer ioctls:
test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK
test VIDIOC_EXPBUF: OK
test Requests: OK (Not Supported)

Test input 0:

Streaming ioctls:
test read/write: OK (Not Supported)
test blocking wait: OK
Video Capture Multiplanar: Captured 60 buffers
test MMAP (select): OK
Video Capture Multiplanar: Captured 60 buffers
test MMAP (epoll): OK
test USERPTR (select): OK (Not Supported)
test DMABUF: Cannot test, specify --expbuf-device

Total for meson-vdec device /dev/video0: 49, Succeeded: 49, Failed: 0, Warnings: 0

Changes since v5 at [6]:
- Changed name of v4l2_m2m_start/stop_streaming to v4l2_m2m_update_start/stop_streaming_state
- Changed name of v4l2_mark_last_buf to v4l2_update_last_buf_state
- Added comment in code to describe usage and use-case
- Added comment in header for helpers
- Updated vicodec with v4l2_m2m_start/stop_streaming renaming in patch 2
- Fixes htmldoc warnings in patch 4

Changes since v4 at [5]:
- Squashed "don't resume instantly if not streaming capture" and "fix OUTPUT buffer size configuration" fixes from maxime

Changes since v3 at [3]:
- Fixed vicodec compliance
- Fixed vdec compliance with v4l2 state management
- fixed doc errors for v4l2-mem2mem.h

Changes since v2 at [2]:
- Move full draining & stopped state tracking into core v4l2-mem2mem
- Adapt vicodec to use the core v4l2-mem2mem draining & stopped state tracking

Changes since v1 at [1]:
- fixed output_size is never used reported by hans
- rebased on G12A and SM1 patches
- added handling of qbuf after STREAMON and STOP before enought buffer queued

[1] https://lore.kernel.org/linux-media/20191007145909.29979-1-mjourdan@xxxxxxxxxxxx
[2] https://lore.kernel.org/linux-media/20191126093733.32404-1-narmstrong@xxxxxxxxxxxx
[3] https://lore.kernel.org/linux-media/20191209122028.13714-1-narmstrong@xxxxxxxxxxxx
[4] https://people.freedesktop.org/~narmstrong/vicodec-compliance-7ead0e1856b89f2e19369af452bb03fd0cd16793-20200116.log
[5] https://lore.kernel.org/linux-media/20200116133025.1903-1-narmstrong@xxxxxxxxxxxx
[6] https://lore.kernel.org/linux-media/20200206082648.25184-1-narmstrong@xxxxxxxxxxxx

Maxime Jourdan (2):
media: meson: vdec: bring up to compliance
media: meson: vdec: add H.264 decoding support

Neil Armstrong (2):
media: v4l2-mem2mem: handle draining, stopped and next-buf-is-last
states
media: vicodec: use v4l2-mem2mem draining, stopped and
next-buf-is-last states handling

drivers/media/platform/vicodec/vicodec-core.c | 162 ++----
drivers/media/v4l2-core/v4l2-mem2mem.c | 221 +++++++-
drivers/staging/media/meson/vdec/Makefile | 2 +-
drivers/staging/media/meson/vdec/codec_h264.c | 484 ++++++++++++++++++
drivers/staging/media/meson/vdec/codec_h264.h | 14 +
drivers/staging/media/meson/vdec/esparser.c | 58 +--
drivers/staging/media/meson/vdec/vdec.c | 90 ++--
drivers/staging/media/meson/vdec/vdec.h | 14 +-
.../staging/media/meson/vdec/vdec_helpers.c | 88 ++--
.../staging/media/meson/vdec/vdec_helpers.h | 6 +-
.../staging/media/meson/vdec/vdec_platform.c | 71 +++
include/media/v4l2-mem2mem.h | 133 +++++
12 files changed, 1113 insertions(+), 230 deletions(-)
create mode 100644 drivers/staging/media/meson/vdec/codec_h264.c
create mode 100644 drivers/staging/media/meson/vdec/codec_h264.h

--
2.22.0