webcam - 使用 raspberry pi 上的 Action 解决网络摄像头流问题

Question

我有一个 USB 网络摄像头(未知品牌，没有标记)，在我的 Raspberry Pi 上检测到它正常。

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

但是，当我运行 Action 时，使用/dev/video0 和唯一的默认配置更改了分辨率并将网络摄像头主机设置为关闭，以便我可以在网络上流式传输它。
这是我运行时的日志

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

相机上的灯在开始时亮起然后再次熄灭，有人知道我遇到的任何错误吗？

谢谢!

Answer 1

我认为您需要将 conf 文件中图像的高度和宽度设置为您的相机规范。在我设置高度 640 宽度 480 之前，我的没有工作。流很棒!只需要找出 webstream 身份验证的补丁即可。目前，我将此流传输到需要登录的网络服务器，但如果有人输入我的 IP 以及即时流传输的端口，则可以绕过此流。