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VEYE CS Camera on Firfly Boards/zh (view source)
Revision as of 11:44, 22 November 2022
, 11:44, 22 November 2022→应用范例
Line 83:
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应当有类似如下提示：
应当有类似如下提示：
−<code>camera id is veyecam2m</code>
+<code>veyecam2m 4-003b: camera id is veyecam2m</code>
−<code>sensor is IMX327/IMX462/IMX385</code>
+<code>veyecam2m 4-003b: sensor is IMX327</code>
* 执行如下命令检查video0设备节点
* 执行如下命令检查video0设备节点
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==== v4l2-ctl ====
==== v4l2-ctl ====
+=====安装v4l2-utils=====
+<code>sudo apt-get install v4l-utils</code>
+=====列出相机支持的数据格式=====
+<code>v4l2-ctl --list-formats-ext</code>
+
+===== 抓取图片 =====
+<code>v4l2-ctl --set-fmt-video=width=1920,height=1080,pixelformat=UYVY --stream-mmap --stream-count=1 --stream-to=uyvy-1920x1080.yuv</code>
+
+<code>v4l2-ctl --set-fmt-video=width=1920,height=1080,pixelformat='NV12' --stream-mmap --stream-count=100 --stream-to=nv12-1920x1080.yuv</code>
+
+播放图片
+
+<code>ffplay -f rawvideo -video_size 1920x1080 -pix_fmt nv12 nv12-1920x1080.yuv</code>
+
+===== 查看帧率 =====
+<code>v4l2-ctl --set-fmt-video=width=1920,height=1080,pixelformat=UYVY --stream-mmap --stream-count=-1 --stream-to=/dev/null</code>
==== yavta示例 ====
==== yavta示例 ====