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stv680

最近两年产于亚洲国家的一些没有产品名的廉价摄像机多使用 stv680 芯片组。绝大多数此类摄像机均为新奇的玩意儿（即 Pencam、 SpyC@m 和 LegoCam）。

想要查阅更完整的使用 stv680 芯片组的网络摄像机列表请点击这里.

linux-uvc

You can find a full list of supported UVC devices here.

自从 kernel 2.6.26 开始，linux-uvc 已经是kernel的一部分。只需要加载模块 uvcvideo 即可。

Note: 但这驱动不支持V4L1。

ov51x-jpeg

This is a kernel module found in the AUR with some additions to the original driver that provide jpeg decompression.

For me to get my "Creative Live! Cam Vista IM" working with Skype I had to add this line to /etc/modprobe.d/modprobe.conf 

options ov51x-jpeg forceblock=1

r5u870 (Ricoh)

绝大部分索尼的笔记本电脑采用Ricoh的网络摄像机. There are packages for the firmware (install first) and driver in AUR.

kernel26 dependency The r5u870 driver is currently broken for kernel 2.6.26 and later. For kernel 2.6.26 and later, just remove r5u870 and r5u870-fw, install from aur this userspace tool (provides firmware too) and run loader command.

stk11xx (Syntek)

Just install this AUR package. It contains the right kernel module.

确定为你的网络摄像机加载所需的模块

最简单的方法是让rc.conf文件在系统启动时自动加载所需的模块。 编辑 rc.conf 文件，在 modules=() 队列中加入你的网络摄像机模块。这样一来，当系统启动时，你的网络摄像机模块就会加载到内核中。

Note: 如果你的摄像头是使用USB接口，系统 应该会自动加载合适的驱动。 如果成功，可以在你插入摄像头之后检查dmesg，应该可以看到如下面的信息： 

$ dmesg|tail
sn9c102: V4L2 driver for SN9C10x PC Camera Controllers v1:1.24a
usb 1-1: SN9C10[12] PC Camera Controller detected (vid/pid 0x0C45/0x600D)
usb 1-1: PAS106B image sensor detected
usb 1-1: Initialization succeeded
usb 1-1: V4L2 device registered as /dev/video0
usb 1-1: Optional device control through 'sysfs' interface ready
usbcore: registered new driver sn9c102

权限

要使用摄像头，首先必须让用户对/dev/video0具备权限.

udev

如果你使用udev (在kernel 2.6.13里是默认的)，你只需把用户加到组video中： 

$ groups

用root权限把用户添加到组中： 

# gpasswd -a <username> video

devfs

将以下两行添加到你的/etc/devfsd.conf. 文件中。这将允许普通用户使用/dev/video0 （你的网络摄像机）。 

# Give normal users access to webcam
REGISTER video0  PERMISSIONS root.users 0660

获取软件以使用你的网络摄像机

Version 2.6.27 of the Linux kernel supports many new webcam drivers. Legacy Video4Linux API has been dropped, and these drivers now only support Video4Linux version 2. Pixel format decoding has been pushed to user space, since Video4Linux version 2 does not support kernel space decoding. The libv4l library provides userland applications with pixel decoding services and will be used by most programs. Other compatibility layers are also available.

If your device is created but your image looks strange (mine was nearly completely green), you probably need this.

If the application has V4L2 support but no pixelformat support (eg: cheese) then use the following command: 

 LD_PRELOAD=/usr/lib/libv4l/v4l2convert.so cheese

If the application only supports the older version of V4L (skype is the most popular of this kind of software) then use this command: 

 LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so skype

Hint: 为了不用每次都输入长长的命令，根据使用摄像机的类型，可以在~/.bashrc或~/.xinitrc里添加一条命令。比如： 

 export LD_PRELOAD=/usr/lib/libv4l/v4l2convert.so

或者 

 export LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so

Cheese

Cheese is the GNOME photo/video taking client. It is similar to Photo Booth in Mac OS X. It is now in extra and is also part of the gnome-extra group

GTK+ UVC Viewer (guvcview)

guvcview is a simple GTK interface for capturing (with sound!) and viewing video from devices supported by the linux UVC driver. Available in the guvcview。

Kopete

Kopete is the KDE instant messaging (IM) client. As of KDE 3.5, it has support for MSN and Yahoo! webcams, but not every cam works yet. It is included in the kdenetwork package.

xawtv

这是一个基本的 Video4Linux 设备查看器，尽管它专用于电视调节卡，但其亦可很好地管理网络摄像机。它会在窗口中显示你的网络摄像机所看到的一切。可以使用以下命令安装： 

# pacman -S xawtv

运行以下命令： 

$ xawtv -c /dev/video0

If you're using an nVidia graphic card, and you get an error like 

X Error of failed request: XF86DGANoDirectVideoMode
 Major opcode of failed request: 139 (XFree86-DGA)
 Minor opcode of failed request: 1 (XF86DGAGetVideoLL)
 Serial number of failed request: 69
 Current serial number in output stream: 69

you should instead run it as: 

$ xawtv -nodga

VLC

VLC can also be used to view and record your webcam. In VLC's file menu, open the 'Capture Device...' dialog and enter the video and audio device files. Or from the command line, do: 

$ vlc v4l:// :v4l-vdev="dev/video0" :v4l-adev="dev/audio2"

This will make VLC mirror your webcam. To take stills, simply choose 'Snapshot' in the 'Video' menu. To record the stream, you add a --sout argument, e.g. 

$ vlc v4l:// :v4l-vdev="dev/video0" :v4l-adev="dev/audio2" --sout "#transcode{}:duplicate{}}"

(Obviously a bit overkill with regard to the bitrates but it's fine for testing purposes.) Notice that this will not produce a mirror on the display - in order to see what you're recording, you would need to add the display as a destination to the argument: 

... :duplicate{dst=display,dst=std{access= ....

(Though this can tax older hardware somewhat...)

Mplayer

使用 Mplayer来给摄像头截屏，需要在终端中运行下列命令： 

$ mplayer tv:// -tv driver=v4l2:width=640:height=480:device=/dev/video0 -fps 15 -vf screenshot

From here you have to press 's' to take the snapshot. The snapshot will be saved in your current folder as shotXXXX.png. 使用如下命令，来录制视频： 

$ mencoder tv:// -tv driver=v4l2:width=640:height=480:device=/dev/video0:forceaudio:adevice=/dev/dsp -ovc lavc -oac mp3lame -lameopts cbr:br=64:mode=3 -o <filename>.avi

按Ctrl+Z停止录制。

FFmpeg

参见 FFmpeg#Recording webcam.

ekiga

这是一款非常类似于 Microsoft Netmeeting 的软件，以前名叫gnomemeeting。 可以使用以下命令安装： 

# pacman -S ekiga

该程序会自动为你设置好一切。

Sonic-snap

Sonic-snap [1] is a viewer/grabber for sn9c102-based webcams only. Available in AUR.

Skype

新版的skype具备视频支持。 在选项设置中，测试摄像头，可双击全屏。使用一下命令安装： 

# pacman -S skype

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