aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/staging/media/sunxi/cedrus/cedrus.h
AgeCommit message (Collapse)AuthorFilesLines
2020-09-01media: uapi: h264: Split prediction weight parametersEzequiel Garcia1-0/+1
The prediction weight parameters are only required under certain conditions, which depend on slice header parameters. As specified in section 7.3.3 Slice header syntax, the prediction weight table is present if: ((weighted_pred_flag && (slice_type == P || slice_type == SP)) || \ (weighted_bipred_idc == 1 && slice_type == B)) Given its size, it makes sense to move this table to its control, so applications can avoid passing it if the slice doesn't specify it. Before this change struct v4l2_ctrl_h264_slice_params was 960 bytes. With this change, it's 188 bytes and struct v4l2_ctrl_h264_pred_weight is 772 bytes. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Tested-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2019-11-10media: cedrus: Fix H264 4k supportJernej Skrabec1-0/+7
H264 decoder needs additional or bigger buffers in order to decode 4k videos. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Acked-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-11-09media: cedrus: Use helpers to access capture queueJernej Skrabec1-2/+6
Accessing capture queue structue directly is not safe. Use helpers for that. Acked-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
2019-10-24media: cedrus: Add HEVC/H.265 decoding supportPaul Kocialkowski1-0/+18
This introduces support for HEVC/H.265 to the Cedrus VPU driver, with both uni-directional and bi-directional prediction modes supported. Field-coded (interlaced) pictures, custom quantization matrices and 10-bit output are not supported at this point. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-08-19media: cedrus: Cleanup control initializationEzequiel Garcia1-2/+1
In order to introduce other controls, the control initialization needs to support an initial struct v4l2_ctrl_control. While here, let's cleanup the control initialization, removing unneeded fields. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-08-13media: cedrus: Remove dst_bufs from contextJernej Skrabec1-3/+1
This array is just duplicated capture buffer queue. Remove it and adjust code to look into capture buffer queue instead. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Acked-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-29media: cedrus: Add H264 decoding supportMaxime Ripard1-1/+37
Introduce some basic H264 decoding support in cedrus. So far, only the baseline profile videos have been tested, and some more advanced features used in higher profiles are not even implemented. Reviewed-by: Jernej Skrabec <jernej.skrabec@siol.net> Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-05-29media: cedrus: Allow different mod clock ratesJernej Skrabec1-0/+1
Some VPU variants may run at higher clock speeds. They actually need extra speed to be capable of decoding more complex codecs like HEVC or bigger image sizes (4K). Expand variant structure with mod_rate information. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: cedrus: Add a quirk for not setting DMA offsetJernej Skrabec1-0/+3
H6 VPU doesn't work if DMA offset is set. Add a quirk for it. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-07media: cedrus: identify buffers by timestampHans Verkuil1-3/+6
Use the new v4l2_m2m_buf_copy_data helper function and use timestamps to refer to reference frames instead of using buffer indices. Also remove the padding fields in the structs, that's a bad idea. Just use the right types to keep everything aligned. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Tested-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-07media: cedrus: Remove global IRQ spin lock from the driverPaul Kocialkowski1-2/+0
We initially introduced a spin lock to ensure that the VPU registers are not accessed concurrently between our setup function and IRQ handler. The V4L2 M2M API ensures that only one decoding job runs at a time, so the interrupt signaling the end of decoding will not occur while the next picture is being configured. Spurious interrupts are taken care of in the handler, by checking that we have a valid M2M context and a decoding status available before marking the buffers as done. In addition, holding a spin lock could be problematic if non-atomic operations are required in the setup process for future codec support. As a result, remove the global IRQ spin lock. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-09-24media: platform: Add Cedrus VPU decoder driverPaul Kocialkowski1-0/+167
This introduces the Cedrus VPU driver that supports the VPU found in Allwinner SoCs, also known as Video Engine. It is implemented through a V4L2 M2M decoder device and a media device (used for media requests). So far, it only supports MPEG-2 decoding. Since this VPU is stateless, synchronization with media requests is required in order to ensure consistency between frame headers that contain metadata about the frame to process and the raw slice data that is used to generate the frame. This driver was made possible thanks to the long-standing effort carried out by the linux-sunxi community in the interest of reverse engineering, documenting and implementing support for the Allwinner VPU. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> [hans.verkuil@cisco.com: dropped obsolete MEDIA_REQUEST_API from Kconfig] Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

Privacy Policy