Lines Matching +full:down +full:- +full:scaling
1 .. SPDX-License-Identifier: GPL-2.0
24 ImgU). The CIO2 driver is available as drivers/media/pci/intel/ipu3/ipu3-cio2*
36 Both of the drivers implement V4L2, Media Controller and V4L2 sub-device
38 MIPI CSI-2 interfaces through V4L2 sub-device sensor drivers.
44 interface to the user space. There is a video node for each CSI-2 receiver,
47 The CIO2 contains four independent capture channel, each with its own MIPI CSI-2
48 receiver and DMA engine. Each channel is modelled as a V4L2 sub-device exposed
49 to userspace as a V4L2 sub-device node and has two pads:
53 .. flat-table::
55 * - pad
56 - direction
57 - purpose
59 * - 0
60 - sink
61 - MIPI CSI-2 input, connected to the sensor subdev
63 * - 1
64 - source
65 - Raw video capture, connected to the V4L2 video interface
71 ------------------------------------
81 -- The IPU3 CSI2 receiver outputs the captured frames from the sensor in packed
84 -- Multiple video nodes have to be operated simultaneously.
92 .. code-block:: none
98 export SDEV=$(media-ctl -d $MDEV -e "ov5670 10-0036")
100 # Establish the link for the media devices using media-ctl [#f3]_
101 media-ctl -d $MDEV -l "ov5670:0 -> ipu3-csi2 0:0[1]"
104 media-ctl -d $MDEV -V "ov5670:0 [fmt:SGRBG10/2592x1944]"
105 media-ctl -d $MDEV -V "ipu3-csi2 0:0 [fmt:SGRBG10/2592x1944]"
106 media-ctl -d $MDEV -V "ipu3-csi2 0:1 [fmt:SGRBG10/2592x1944]"
113 .. code-block:: none
115 yavta -w 0x009e0903 444 $SDEV
116 yavta -w 0x009e0913 1024 $SDEV
117 yavta -w 0x009e0911 2046 $SDEV
123 .. code-block:: none
125 yavta --data-prefix -u -c10 -n5 -I -s2592x1944 --file=/tmp/frame-#.bin \
126 -f IPU3_SGRBG10 $(media-ctl -d $MDEV -e "ipu3-cio2 0")
131 The captured frames are available as /tmp/frame-#.bin files.
143 The ImgU contains two independent pipes, each modelled as a V4L2 sub-device
144 exposed to userspace as a V4L2 sub-device node.
150 .. flat-table::
152 * - pad
153 - direction
154 - purpose
156 * - 0
157 - sink
158 - Input raw video stream
160 * - 1
161 - sink
162 - Processing parameters
164 * - 2
165 - source
166 - Output processed video stream
168 * - 3
169 - source
170 - Output viewfinder video stream
172 * - 4
173 - source
174 - 3A statistics
180 ----------------
182 With ImgU, once the input video node ("ipu3-imgu 0/1":0, in
183 <entity>:<pad-number> format) is queued with buffer (in packed raw Bayer
195 ----------------------------------------
203 :ref:`v4l2-pix-fmt-ipu3-sbggr10`.
207 Only the multi-planar API is supported. More details can be found at
208 :ref:`planar-apis`.
211 ---------------------
217 :ref:`v4l2-meta-fmt-params`.
220 ------------------------
235 ------------------------------------------
238 time-sharing with single input frame data. Each pipe can run at certain mode -
248 (currently defined in drivers/staging/media/ipu3/include/intel-ipu3.h) to query
251 should be enabled and buffers need be queued, the statistics and the view-finder
262 ----------------------------------------
270 Let us take "ipu3-imgu 0" subdev as an example.
272 .. code-block:: none
274 media-ctl -d $MDEV -r
275 media-ctl -d $MDEV -l "ipu3-imgu 0 input":0 -> "ipu3-imgu 0":0[1]
276 media-ctl -d $MDEV -l "ipu3-imgu 0":2 -> "ipu3-imgu 0 output":0[1]
277 media-ctl -d $MDEV -l "ipu3-imgu 0":3 -> "ipu3-imgu 0 viewfinder":0[1]
278 media-ctl -d $MDEV -l "ipu3-imgu 0":4 -> "ipu3-imgu 0 3a stat":0[1]
284 .. code-block:: none
286 yavta -w "0x009819A1 1" /dev/v4l-subdev7
289 cropping or scaling, these hardware blocks include Input Feeder(IF), Bayer Down
291 There is also a block which can change the frame resolution - YUV Scaler, it is
297 .. kernel-figure:: ipu3_rcb.svg
308 **Bayer Down Scaler**
310 Bayer Down Scaler is capable of performing image scaling in Bayer domain, the
323 YUV Scaler which similar with BDS, but it is mainly do image down scaling in
324 YUV domain, it can support up to 1/12X down scaling, but it can not be applied
330 Down Scaler and GDC blocks should be configured with the supported resolutions
335 intermediate resolutions can be generated by specific tool -
337 https://github.com/intel/intel-ipu3-pipecfg
342 https://chromium.googlesource.com/chromiumos/overlays/board-overlays/+/master
344 Under baseboard-poppy/media-libs/cros-camera-hal-configs-poppy/files/gcss
374 .. code-block:: none
376 v4l2n --pipe=4 --load=/tmp/frame-#.bin --open=/dev/video4
377 --fmt=type:VIDEO_OUTPUT_MPLANE,width=2592,height=1944,pixelformat=0X47337069 \
378 --reqbufs=type:VIDEO_OUTPUT_MPLANE,count:1 --pipe=1 \
379 --output=/tmp/frames.out --open=/dev/video5 \
380 --fmt=type:VIDEO_CAPTURE_MPLANE,width=2560,height=1920,pixelformat=NV12 \
381 --reqbufs=type:VIDEO_CAPTURE_MPLANE,count:1 --pipe=2 \
382 --output=/tmp/frames.vf --open=/dev/video6 \
383 --fmt=type:VIDEO_CAPTURE_MPLANE,width=2560,height=1920,pixelformat=NV12 \
384 --reqbufs=type:VIDEO_CAPTURE_MPLANE,count:1 --pipe=3 --open=/dev/video7 \
385 --output=/tmp/frames.3A --fmt=type:META_CAPTURE,? \
386 --reqbufs=count:1,type:META_CAPTURE --pipe=1,2,3,4 --stream=5
390 .. code-block:: none
392 yavta --data-prefix -Bcapture-mplane -c10 -n5 -I -s2592x1944 \
393 --file=frame-#.out-f NV12 /dev/video5 & \
394 yavta --data-prefix -Bcapture-mplane -c10 -n5 -I -s2592x1944 \
395 --file=frame-#.vf -f NV12 /dev/video6 & \
396 yavta --data-prefix -Bmeta-capture -c10 -n5 -I \
397 --file=frame-#.3a /dev/video7 & \
398 yavta --data-prefix -Boutput-mplane -c10 -n5 -I -s2592x1944 \
399 --file=/tmp/frame-in.cio2 -f IPU3_SGRBG10 /dev/video4
405 ----------------------------------------------
413 .. code-block:: none
415 raw2pnm -x2560 -y1920 -fNV12 /tmp/frames.out /tmp/frames.out.ppm
423 .. code-block:: none
425 raw2pnm -x2560 -y1920 -fNV12 /tmp/frames.vf /tmp/frames.vf.ppm
435 https://chromium.googlesource.com/chromiumos/platform/arc-camera/+/master/
445 .. kernel-render:: DOT
466 m [label="Chroma Down Scaling"]
475 { rank=same; a -> b -> c -> d -> e -> f -> g -> h -> i }
476 { rank=same; j -> k -> l -> m -> n -> o -> p -> q -> s -> t}
478 a -> j [style=invis, weight=10]
479 i -> j
480 q -> r
488 Optical Black Correction Optical Black Correction block subtracts a pre-defined
493 address non-linearity sensor effects. The Lookup table
497 non-uniformity of the pixel response due to optical
518 basic non-linear tone mapping correction that is
525 CDS Chroma down sampling
526 After the CSC is performed, the Chroma Down Sampling
527 is applied for a UV plane down sampling by a factor
570 Y down sampling
572 Y-tone mapping
589 .. [#f5] drivers/staging/media/ipu3/include/intel-ipu3.h
595 .. [#f3] http://git.ideasonboard.org/?p=media-ctl.git;a=summary