Hi everyone, Over the last few weeks Daniel Almeida and Nicolas Dufresne have been working on GStreamer v4l2codecs support for stateless MPEG-2 decoding. This allowed us to re-review the MPEG-2 specification and re-discuss the API with some additional insight. The API now looks quite cleaner, and hopefully ready for destaging. This series is mostly thanks to Daniel and Nicolas! Patches 1 to 7 cleanup the API, and patches 8 to 10 move it out of staging. This is tested on i.MX8M and RK3399 platforms, using GStreamer v4l2codecs, which will be upstream very soon. v5: * Rename "quantization" to "quantisation", so the terminology matches the MPEG-2 specification. This is the only change in v5, compared to v4. v4: * Rework and clarify quantization matrices control semantics. * Move reference buffer fields to the picture parameter control. * Remove slice parameters control. This can be added back in the future if needed, but for now it's not used. See patch 6/9 for details. * Destage the API. v3: * No API changes, just minor boilerplate fixes for the new controls to be properly exposed, initialized and validated. v2: * Fixed bad use of boolean negation in a flag, which was fortunately reported by 0day bot. Ezequiel Garcia (10): media: uapi: mpeg2: Rename "quantization" to "quantisation" media: uapi: mpeg2: rework quantisation matrices semantics media: uapi: mpeg2: Cleanup flags media: uapi: mpeg2: Split sequence and picture parameters media: uapi: mpeg2: Move reference buffer fields media: hantro/cedrus: Remove unneeded slice size and slice offset media: uapi: mpeg2: Remove V4L2_CID_MPEG_VIDEO_MPEG2_SLICE_PARAMS media: controls: Log MPEG-2 stateless control in .std_log media: uapi: Move the MPEG-2 stateless control type out of staging media: uapi: move MPEG-2 stateless controls out of staging .../media/v4l/ext-ctrls-codec-stateless.rst | 218 +++++ .../media/v4l/ext-ctrls-codec.rst | 217 ----- .../media/v4l/pixfmt-compressed.rst | 11 +- .../media/v4l/vidioc-g-ext-ctrls.rst | 12 + .../media/v4l/vidioc-queryctrl.rst | 18 +- .../media/videodev2.h.rst.exceptions | 5 +- drivers/media/v4l2-core/v4l2-async-core.c | 880 ++++++++++++++++++ drivers/media/v4l2-core/v4l2-ctrls.c | 118 ++- drivers/staging/media/hantro/hantro_drv.c | 9 +- .../media/hantro/hantro_g1_mpeg2_dec.c | 110 +-- drivers/staging/media/hantro/hantro_hw.h | 2 +- drivers/staging/media/hantro/hantro_mpeg2.c | 2 +- .../media/hantro/rk3399_vpu_hw_mpeg2_dec.c | 106 +-- drivers/staging/media/sunxi/cedrus/cedrus.c | 10 +- drivers/staging/media/sunxi/cedrus/cedrus.h | 5 +- .../staging/media/sunxi/cedrus/cedrus_dec.c | 10 +- .../staging/media/sunxi/cedrus/cedrus_mpeg2.c | 97 +- include/media/mpeg2-ctrls.h | 82 -- include/media/v4l2-ctrls.h | 11 +- include/uapi/linux/v4l2-controls.h | 114 +++ include/uapi/linux/videodev2.h | 7 + 21 files changed, 1492 insertions(+), 552 deletions(-) create mode 100644 drivers/media/v4l2-core/v4l2-async-core.c delete mode 100644 include/media/mpeg2-ctrls.h -- 2.30.0
