我的Raspberry Pi上有一个USB网络摄像头（未知品牌，没有标记）。
这是lsusb的输出
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 0424:9512 Standard Microsystems Corp.
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.
Bus 001 Device 004: ID 0c45:608f Microdia PC Camera (SN9C103 + OV7630)
Bus 001 Device 005: ID 1267:0103 Logic3 / SpectraVideo plc G-720 Keyboard
然而，当我运行动作时，使用/ dev / video0和唯一的默认配置会更改分辨率并关闭网络摄像头主机，以便我可以在网络上传输它。 这是我运行动作时的日志
Log of motion -n
[0] Processing thread 0 - config file /etc/motion/motion.conf
[0] Motion 3.2.12 Started
[0] ffmpeg LIBAVCODEC_BUILD 3482368 LIBAVFORMAT_BUILD 3478784
[0] Thread 1 is from /etc/motion/motion.conf
[0] motion-httpd/3.2.12 running, accepting connections
[0] motion-httpd: waiting for data on port TCP 8080
[1] Thread 1 started
[1] cap.driver: "sonixb"
[1] cap.card: "USB camera"
[1] cap.bus_info: "usb-bcm2708_usb-1.2"
[1] cap.capabilities=0x05000001
[1] - VIDEO_CAPTURE
[1] - READWRITE
[1] - STREAMING
[1] Config palette index 8 (YU12) doesn't work.
[1] Supported palettes:
[1] 0: S910 (S910)
[1] 1: BA81 (BA81)
[1] Selected palette BA81
[1] Test palette BA81 (480x640)
[1] Adjusting resolution from 480x640 to 160x120.
[1] Using palette BA81 (160x120) bytesperlines 160 sizeimage 19200 colorspace 00000008
[1] found control 0x00980900, "Brightness", range 0,255
[1] "Brightness", default 127, current 127
[1] found control 0x00980911, "Exposure", range 0,1023
[1] "Exposure", default 66, current 66
[1] found control 0x00980912, "Automatic Gain (and Exposure)", range 0,1
[1] "Automatic Gain (and Exposure)", default 1, current 1
[1] found control 0x00980913, "Gain", range 0,255
[1] "Gain", default 127, current 127
[1] mmap information:
[1] frames=4
[1] 0 length=20480
[1] 1 length=20480
[1] 2 length=20480
[1] 3 length=20480
[1] Using V4L2
[1] Resizing pre_capture buffer to 1 items
[1] v4l2_next: VIDIOC_DQBUF: EIO (s->pframe 0): Input/output error
[1] v4l2_next: VIDIOC_QBUF: Invalid argument
[1] v4l2_next: VIDIOC_QBUF: Invalid argument
[1] v4l2_next: VIDIOC_QBUF: Invalid argument
[1] v4l2_next: VIDIOC_QBUF: Invalid argument
[1] Error capturing first image
[1] Started stream webcam server in port 8081
[1] v4l2_next: VIDIOC_QBUF: Invalid argument
[1] Video device fatal error - Closing video device
[1] Closing video device /dev/video0
[1] Retrying until successful connection with camera
[1] cap.driver: "sonixb"
[1] cap.card: "USB camera"
[1] cap.bus_info: "usb-bcm2708_usb-1.2"
[1] cap.capabilities=0x05000001
[1] - VIDEO_CAPTURE
[1] - READWRITE
[1] - STREAMING
[1] Config palette index 8 (YU12) doesn't work.
[1] Supported palettes:
[1] 0: S910 (S910)
[1] 1: BA81 (BA81)
[1] Selected palette BA81
[1] Test palette BA81 (480x640)
[1] Adjusting resolution from 480x640 to 160x120.
[1] Using palette BA81 (160x120) bytesperlines 160 sizeimage 19200 colorspace 00000008
[1] found control 0x00980900, "Brightness", range 0,255
[1] "Brightness", default 127, current 127
[1] found control 0x00980911, "Exposure", range 0,1023
[1] "Exposure", default 66, current 66
[1] found control 0x00980912, "Automatic Gain (and Exposure)", range 0,1
[1] "Automatic Gain (and Exposure)", default 1, current 1
[1] found control 0x00980913, "Gain", range 0,255
[1] "Gain", default 127, current 127
[1] mmap information:
[1] frames=4
[1] 0 length=20480
[1] 1 length=20480
[1] 2 length=20480
[1] 3 length=20480
[1] Using V4L2
[1] Camera has finally become available
[1] Camera image has different width and height from what is in the config file. You should fix that
[1] Restarting Motion thread to reinitialize all image buffers to new picture dimensions
[1] Thread exiting
[1] Calling vid_close() from motion_cleanup
[1] Closing video device /dev/video0
[0] Motion thread 1 restart
[1] Thread 1 started
[1] config image height (120) is not modulo 16
[1] Could not fetch initial image from camera
[1] Motion continues using width and height from config file(s)
[1] Resizing pre_capture buffer to 1 items
[1] Started stream webcam server in port 8081
[1] Retrying until successful connection with camera
[1] config image height (120) is not modulo 16
[0] httpd - Finishing
[0] httpd Closing
[0] httpd thread exit
[1] Thread exiting
[0] Motion terminating
相机上的指示灯在开始时亮起然后再次熄灭，是否有人认出我遇到的任何错误？
谢谢！
答案 0 :(得分：1)
我认为您需要将conf文件中图像的高度和宽度设置为相机规格。我没有工作，直到我设置640宽度480.流量很棒！只需要找出网络流认证的补丁。目前我有这个流媒体到我的网络服务器需要登录，但如果有人输入我的IP加上端口即时通讯，这可以被绕过。
答案 1 :(得分：1)
即使在 conf 文件中配置不同，运动也会使用它在运行时检测到的可能分辨率（至少根据我的经验）。
此外，似乎在 conf 文件中设置了不受支持的调色板，并且动作选择其检测到的两个中的一个支持。您是否尝试在 conf 文件中将调色板设置更改为“0”（S910）？
最后，Pi的USB支持有一些已知的，现在尚未解决的大块数据问题。降低帧率也可能有助于其他情况（在这种情况下，我认为，我没有帮助，因为该过程已经因第一张图像而失败）。
答案 2 :(得分：1)
尝试使用v2l4-ctl --list-format-ext查看相机支持的像素格式和图像尺寸组合。 S910是一个便宜的旧相机，你可能想要升级。
答案 3 :(得分：1)
您的问题出现在日志中：
config image height (120) is not modulo 16
所以你需要不同的图像分辨率。
查看您的设备支持的内容
$ uvcdynctrl -f
选择一个y分辨率为16的倍数的分支。 例如。如果为您的相机列出了那个，则为640x480。
答案 4 :(得分：0)
我建议你尝试guvcview而不是动作。它运行得更快，并且在我的Pi上提供了更好的图像。它在X下运行。
guvcview的两个注释 - 将POWER LINE FREQUENCY设置为您当地的主电源频率。 - 将分辨率设置为640 x 480。
guvcview占用大约50％的处理器能力。是的，也可以使用USB集线器！
UNH。