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| <code>[ 6.150181] mx8-img-md: created link [veyecam2m 1-003b] => [mxc-mipi-csi2.1]</code> | | <code>[ 6.150181] mx8-img-md: created link [veyecam2m 1-003b] => [mxc-mipi-csi2.1]</code> |
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− | <br /> | + | 可以看到在i2c-1上识别到了VEYE-MIPI-IMX327S。 |
| + | |
| + | 正确识别摄像头后,会生成/dev/video0设备节点。 |
| + | |
| + | * 列出摄像头支持的数据格式 |
| + | |
| + | <code>v4l2-ctl --list-formats-ext -d /dev/video0</code> |
| + | |
| + | <code>ioctl: VIDIOC_ENUM_FMT</code> |
| + | |
| + | <code> Type: Video Capture Multiplanar</code> |
| + | |
| + | <code> [0]: 'RGBP' (16-bit RGB 5-6-5)</code> |
| + | |
| + | <code> Size: Discrete 1920x1080</code> |
| + | |
| + | <code> [1]: 'RGB3' (24-bit RGB 8-8-8)</code> |
| + | |
| + | <code> Size: Discrete 1920x1080</code> |
| + | |
| + | <code> [2]: 'BGR3' (24-bit BGR 8-8-8)</code> |
| + | |
| + | <code> Size: Discrete 1920x1080</code> |
| + | |
| + | <code> [3]: 'YUYV' (YUYV 4:2:2)</code> |
| + | |
| + | <code> Size: Discrete 1920x1080</code> |
| + | |
| + | <code> [4]: 'YUV4' (32-bit A/XYUV 8-8-8-8)</code> |
| + | |
| + | <code> Size: Discrete 1920x1080</code> |
| + | |
| + | <code> [5]: 'NV12' (Y/CbCr 4:2:0)</code> |
| + | |
| + | <code> Size: Discrete 1920x1080</code> |
| + | |
| + | <code> [6]: 'YM24' (Planar YUV 4:4:4 (N-C))</code> |
| + | |
| + | <code> Size: Discrete 1920x1080</code> |
| + | |
| + | <code> [7]: 'XR24' (32-bit BGRX 8-8-8-8)</code> |
| + | |
| + | <code> Size: Discrete 1920x1080</code> |
| + | |
| + | <code> [8]: 'AR24' (32-bit BGRA 8-8-8-8)</code> |
| + | |
| + | <code> Size: Discrete 1920x1080</code> |
| + | |
| + | 事实上,该摄像头仅提供 UYVY 数据格式,而 i.MX 8M Plus 中的 ISI 模块提供了数据格式转换功能,因此 /dev/video0 有这么多的输出格式。 |
| + | |
| + | === 视频流测试 === |
| + | |
| + | ==== 视频预览 (VEYE-MIPI-CAM@1080p mode) ==== |
| + | <code>gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw, format=NV12, width=1920, height=1080,framerate=30/1 ! autovideosink -v</code> |
| + | |
| + | or |
| + | |
| + | <code>gst-launch-1.0 v4l2src device=/dev/video0 io-mode=4 ! video/x-raw, format=NV12, width=1920, height=1080,framerate=30/1 ! imxvideoconvert_g2d ! queue ! video/x-raw, format=RGB16, width=1920, height=1080 ! waylandsink</code> |
| + | =====抓拍一张图片 (VEYE-MIPI-CAM@1080p mode)===== |
| + | <code>gst-launch-1.0 v4l2src num-buffers=1 device=/dev/video0 ! 'video/x-raw, width=1920,height=1080' ! jpegenc ! filesink location=test_image.jpg</code> |
| + | |
| + | ==== v4l2grab抓拍一张图片(VEYE-MIPI-CAM@1080p mode) ==== |
| + | <code>./v4l2grab -d /dev/video0 -W 1920 -H 1080 -I 30 -o picture.jpg</code> |
| + | |
| + | ===I2C脚本=== |
| + | 由于我们的摄像头参数自由度比较高,并没有采用V4L2参数进行控制,而是使用脚本进行参数配置。 |
| + | |
| + | https://github.com/veyeimaging/nxp_i.mx_veye_bsp/tree/main/i2c_cmd |
| + | |
| + | 注意脚本使用中,采用-b [i2cbus]参数来指明操作的是哪个摄像头。对于OKMX8MPQ-C,应当使用 -b 1。 |
| + | |
| + | [http://wiki.veye.cc/index.php/VEYE_MIPI_290/327_for_Raspberry_Pi/zh#.E8.A7.86.E9.A2.91.E6.8E.A7.E5.88.B6.E8.BD.AF.E4.BB.B6.E5.8C.85.E4.BD.BF.E7.94.A8 VEYE系列参数控制软件包使用说明] |