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大家如果有4418的camera 捕获图像的demo,能给我共享一下么? 669442656@qq.com
我现在是用4418接收镁光asx340sensor的VGA的图像 我调用media-crtl -p : Media controller API version 0.0.0 Media device information ------------------------ driver nxp-v4l2 model nxp-v4l2.0 serial bus info hw revision 0x0 driver version 0.0.0 Device topology - entity 1: NXP VIN CLIPPER0 (3 pads, 3 links) type V4L2 subdev subtype Unknown flags 0 device node name /dev/v4l-subdev0 pad0: Sink [fmt:unknown/0x0 crop:(0,0)/0x0] <- "ASX340 0-0048":0 [] pad1: Source [fmt:unknown/0x0 crop:(0,0)/0x0] -> "VIDEO CLIPPER0":0 [] pad2: Source [fmt:unknown/0x0 crop:(0,0)/0x0] -> "NXP DECIMATOR0":0 [] - entity 2: VIDEO CLIPPER0 (2 pads, 1 link) type Node subtype V4L flags 0 device node name /dev/video0 pad0: Sink <- "NXP VIN CLIPPER0":1 [] pad1: Source - entity 3: NXP DECIMATOR0 (2 pads, 2 links) type V4L2 subdev subtype Unknown flags 0 device node name /dev/v4l-subdev1 pad0: Sink [fmt:unknown/0x0 crop:(0,0)/0x0] <- "NXP VIN CLIPPER0":2 [] pad1: Source [fmt:unknown/0x0 crop:(0,0)/0x0] -> "VIDEO DECIMATOR0":0 [] - entity 4: VIDEO DECIMATOR0 (2 pads, 1 link) type Node subtype V4L flags 0 device node name /dev/video1 pad0: Sink <- "NXP DECIMATOR0":1 [] pad1: Source - entity 5: ASX340 0-0048 (1 pad, 1 link) type V4L2 subdev subtype Sensor flags 0 device node name /dev/v4l-subdev2 pad0: Source -> "NXP VIN CLIPPER0":0 [] - entity 6: NXP SCALER (2 pads, 2 links) type V4L2 subdev subtype Unknown flags 0 device node name /dev/v4l-subdev3 pad0: Sink [fmt:unknown/0x0] <- "VIDEO SCALER":1 [] pad1: Source [fmt:unknown/0x0] -> "VIDEO SCALER":0 [] - entity 7: VIDEO SCALER (2 pads, 2 links) type Node subtype V4L flags 0 device node name /dev/video2 pad0: Sink <- "NXP SCALER":1 [] pad1: Source -> "NXP SCALER":0 [] - entity 8: NXP MLC0 (3 pads, 4 links) type V4L2 subdev subtype Unknown flags 0 device node name /dev/v4l-subdev4 pad0: Sink [fmt:unknown/0x0 crop:(0,0)/0x0] <- "VIDEO MLC RGB0":1 [] pad1: Sink [fmt:unknown/0x0 crop:(0,0)/0x0] <- "VIDEO MLC VID0":1 [] pad2: Source -> "NXP RESC0":0 [] -> "NXP HDMI":0 [] - entity 9: VIDEO MLC RGB0 (2 pads, 1 link) type Node subtype V4L flags 0 device node name /dev/video3 pad0: Sink pad1: Source -> "NXP MLC0":0 [] - entity 10: VIDEO MLC VID0 (2 pads, 1 link) type Node subtype V4L flags 0 device node name /dev/video4 pad0: Sink pad1: Source -> "NXP MLC0":1 [] - entity 11: NXP MLC1 (3 pads, 4 links) type V4L2 subdev subtype Unknown flags 0 device node name /dev/v4l-subdev5 pad0: Sink [fmt:unknown/0x0 crop:(0,0)/0x0] <- "VIDEO MLC RGB1":1 [] pad1: Sink [fmt:unknown/0x0 crop:(0,0)/0x0] <- "VIDEO MLC VID1":1 [] pad2: Source -> "NXP RESC0":0 [] -> "NXP HDMI":0 [] - entity 12: VIDEO MLC RGB1 (2 pads, 1 link) type Node subtype V4L flags 0 device node name /dev/video5 pad0: Sink pad1: Source -> "NXP MLC1":0 [] - entity 13: VIDEO MLC VID1 (2 pads, 1 link) type Node subtype V4L flags 0 device node name /dev/video6 pad0: Sink pad1: Source -> "NXP MLC1":1 [] - entity 14: NXP RESC0 (2 pads, 3 links) type V4L2 subdev subtype Unknown flags 0 device node name /dev/v4l-subdev6 pad0: Sink [fmt:unknown/0x0 crop:(0,0)/0x0] <- "NXP MLC0":2 [] <- "NXP MLC1":2 [] pad1: Source [fmt:unknown/0x0 crop:(0,0)/0x0] -> "NXP HDMI":0 [] - entity 15: NXP HDMI (1 pad, 3 links) type V4L2 subdev subtype Unknown flags 0 device node name /dev/v4l-subdev7 pad0: Sink <- "NXP MLC0":2 [] <- "NXP MLC1":2 [] <- "NXP RESC0":1 [] --------------- 调用media-ctl -r -l '"ASX340 0-0048":0->"NXP VIN CLIPPER0":0[1],"NXP VIN CLIPPER0":1->"VIDEO CLIPPER0":0[1]' 建立一个link 然后用IDEO CLIPPER0对应的video0来捕获图像, 但是用yavta 测试的时候却提示 Device /dev/video0 opened. Error opening device /dev/video0: neither video capture nor video output supported. 是我哪里有设置不对的地方么? 求指点! |
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