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前言

? ? ? ? 本來是想用xawtv來測試攝像頭，結(jié)果不是很喜歡，然后，就想找一個喜歡的，然后就變成攝像頭軟件匯總了。

一 在ubuntu虛擬機中查看

攏共分三步

1.先 ls /dev/video*

ls /dev/video*

2. 插入外置攝像頭

3.再 ls /dev/video*

多出來的那個videoXXX設(shè)備就是攝像頭了。

????????我使用的是一個外置的USB攝像頭，將USB攝像頭連接到虛擬機后，使用dmesg命令，會看到usb攝像頭被加載過程的信息。

[92462.307190] usb 3-2: new high-speed USB device number 5 using xhci_hcd [92462.726303] usb 3-2: New USB device found, idVendor=1e45, idProduct=3035 [92462.726306] usb 3-2: New USB device strings: Mfr=3, Product=1, SerialNumber=2 [92462.726356] usb 3-2: Product: USB Camera [92462.726357] usb 3-2: Manufacturer: Generic [92462.726358] usb 3-2: SerialNumber: 0001 [92462.857710] media: Linux media interface: v0.10 [92462.994536] Linux video capture interface: v2.00 [92463.096302] usbcore: registered new interface driver snd-usb-audio [92463.177813] uvcvideo: Found UVC 1.00 device USB Camera (1e45:3035) [92463.185183] input: USB Camera: USB Camera as /devices/pci0000:00/0000:00:15.0/0000:03:00.0/usb3/3-2/3-2:1.0/input/input6 [92463.185506] usbcore: registered new interface driver uvcvideo [92463.185507] USB Video Class driver (1.1.1) [92469.683588] usb 3-2: USB disconnect, device number 5 [92470.406837] usb 3-2: new high-speed USB device number 6 using xhci_hcd [92470.810353] usb 3-2: New USB device found, idVendor=1e45, idProduct=3035 [92470.810356] usb 3-2: New USB device strings: Mfr=3, Product=1, SerialNumber=2 [92470.810357] usb 3-2: Product: USB Camera [92470.810358] usb 3-2: Manufacturer: Generic [92470.810359] usb 3-2: SerialNumber: 0001 [92470.823773] uvcvideo: Found UVC 1.00 device USB Camera (1e45:3035) [92470.833211] input: USB Camera: USB Camera as /devices/pci0000:00/0000:00:15.0/0000:03:00.0/usb3/3-2/3-2:1.0/input/input7 [92478.499868] usb 3-2: USB disconnect, device number 6 [92479.215252] usb 3-2: new high-speed USB device number 7 using xhci_hcd [92479.614817] usb 3-2: New USB device found, idVendor=1e45, idProduct=3035 [92479.614819] usb 3-2: New USB device strings: Mfr=3, Product=1, SerialNumber=2 [92479.614820] usb 3-2: Product: USB Camera [92479.614821] usb 3-2: Manufacturer: Generic [92479.614821] usb 3-2: SerialNumber: 0001 [92479.623908] uvcvideo: Found UVC 1.00 device USB Camera (1e45:3035) [92479.629663] input: USB Camera: USB Camera as /devices/pci0000:00/0000:00:15.0/0000:03:00.0/usb3/3-2/3-2:1.0/input/input8 [92483.057036] usb 3-2: USB disconnect, device number 7 [92483.770509] usb 3-2: new high-speed USB device number 8 using xhci_hcd [92484.172011] usb 3-2: New USB device found, idVendor=1e45, idProduct=3035 [92484.172013] usb 3-2: New USB device strings: Mfr=3, Product=1, SerialNumber=2 [92484.172015] usb 3-2: Product: USB Camera [92484.172016] usb 3-2: Manufacturer: Generic [92484.172017] usb 3-2: SerialNumber: 0001 [92484.181008] uvcvideo: Found UVC 1.00 device USB Camera (1e45:3035) [92484.189816] input: USB Camera: USB Camera as /devices/pci0000:00/0000:00:15.0/0000:03:00.0/usb3/3-2/3-2:1.0/input/input9 [92484.551272] usb 3-2: USB disconnect, device number 8 [92485.262678] usb 3-2: new high-speed USB device number 9 using xhci_hcd [92485.660855] usb 3-2: New USB device found, idVendor=1e45, idProduct=3035 [92485.660857] usb 3-2: New USB device strings: Mfr=3, Product=1, SerialNumber=2 [92485.660858] usb 3-2: Product: USB Camera [92485.660859] usb 3-2: Manufacturer: Generic [92485.660859] usb 3-2: SerialNumber: 0001 [92485.670919] uvcvideo: Found UVC 1.00 device USB Camera (1e45:3035) [92485.678017] input: USB Camera: USB Camera as /devices/pci0000:00/0000:00:15.0/0000:03:00.0/usb3/3-2/3-2:1.0/input/input10

查看設(shè)備名:

$ ls /dev/video* -ls 0 crw-rw----+ 1 root video 81, 0 9月 16 11:55 /dev/video0

當前/dev目錄中多出了一個video0設(shè)備，主設(shè)備號是81，次設(shè)備號是0

二 xawtv測試

?點擊OK，郵件點擊視頻窗口，看到Options窗口。

(⊙o⊙)…好像我的需求中不需要窗口

看看幫助信息:

xawtv -h lkmao@ubuntu:~$ xawtv -h This is xawtv-3.103, running on Linux/x86_64 (4.15.0-142-generic)usage: xawtv [ options ] [ station ] options:-h -help print this text-v -debug n debug level n, n = [0..2]-remote assume remote display-n -noconf don't read the config file-m -nomouse startup with mouse pointer disabled-f -fullscreen startup in fullscreen mode-(no)dga enable/disable DGA extension-(no)vm enable/disable VidMode extension-(no)randr enable/disable Xrandr extension-(no)xv enable/disable Xvideo extension altogether-(no)xv-video enable/disable Xvideo extension (for video only,i.e. XvPutVideo() calls)-(no)xv-image enable/disable Xvideo extension (for image scalingonly, i.e. XvPutImage() calls)-(no)gl enable/disable OpenGL-(no)alsa enable/disable alsa streaming. Default: enabled-(no)alsa-cap manually specify an alsa capture interface-(no)alsa-pb manually specify an alsa playback interface-alsa-latency manually specify an alsa latency in ms. Default: 30-b -bpp n color depth of the display is n (n=24,32)-o -outfile file filename base for snapshots-c -device file use <file> as video4linux device-D -driver name use <name> as video4linux driver-C -dspdev file use <file> as audio (oss) device-vbidev file use <file> as vbi device-joydev file use <file> as joystick device-shift x shift display by x bytes-fb let fb (not X) set up v4l device-parallel n use n compression threads-bufcount n use n video buffers-hwscan print a list of available devices. station:this is one of the stations listed in $HOME/.xawtvCheck the manual page for a more detailed description.-- Gerd Knorr <kraxel@bytesex.org> lkmao@ubuntu:~$

使用xawtv掃描系統(tǒng)中的視頻設(shè)備

xawtv -hwscan lkmao@ubuntu:~$ xawtv -hwscan This is xawtv-3.103, running on Linux/x86_64 (4.15.0-142-generic) looking for available devices Xlib: extension "XVideo" missing on display "localhost:10.0". /dev/video0: OK [ -device /dev/video0 ]type : libv4lname : USB Camera: USB Cameraflags: capturelkmao@ubuntu:~$

三cheese軟件

cheese正常的翻譯是干酪、乳酪、芝士，拍照的時候翻譯成茄子或者七喜。這個好像默認是安裝的。沒有安裝的話，也很簡單。

sudo apt-get install cheese cheese

看一下幫助信息:

lkmao@ubuntu:~$ cheese -h 用法：cheese [選項...]幫助選項：-h, --help 顯示幫助選項--help-all 顯示全部幫助選項--help-gapplication 顯示 GApplication 選項--help-gtk 顯示 GTK+ 選項應(yīng)用程序選項：-w, --wide 以寬屏模式啟動-d, --device=設(shè)備 用作攝像頭的設(shè)備-v, --version 輸出版本信息并退出-f, --fullscreen 以全屏模式啟動--display=顯示 要使用的 X 顯示lkmao@ubuntu:~$

看一下就好了，再換一個

四 camorama測試

這個沒用過，得先安裝

sudo apt install camorama

這個東西好像支持FTP遠程訪問

????????下面的嘗試不一定成功啊，試一下，將攝像頭連接到另一個虛擬機中，取名虛擬機2號，小名虛2。并保證該虛擬機安裝了ftp服務(wù)器。(⊙o⊙)…，沒安裝。那就安裝吧，過程在本文下面。

在虛1中運行camorama，然后配置FTP，這個時候虛1中已經(jīng)沒有攝像頭了，因為連接到虛2上了，打開會報錯，如下所示，所以要看看幫助信息

?先在虛1中連接筆記本電腦的攝像頭。保證camorama能打開

配置如下所示:

?點擊take picture,報錯。

?不知道怎么弄了，暫時先換一個軟件。?

ubuntu中使用guvcview

sudo apt install guvcview

直接運行g(shù)uvcview即可?

mplayer

sudo apt install mencoder sudo apt install mplayer

運行

$ mplayer mplayer: error while loading shared libraries: libfaad.so.2: cannot open shared object file: No such file or directory $

這個沒安裝成功

$ sudo apt install mencoder Reading package lists... Done Building dependency tree... Done Reading state information... Done You might want to run 'apt --fix-broken install' to correct these. The following packages have unmet dependencies:mencoder : Depends: libfaad2 (>= 2.7) but it is not going to be installedmplayer : Depends: libfaad2 (>= 2.7) but it is not going to be installed E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution). $

為了解決了這個問題，又單獨寫了一篇文章，這篇文章介紹了faad源碼下載與編譯安裝。安裝完以后mplayer就可以使用了。

https://lkmao.blog.csdn.net/article/details/126952445

五 在ubuntu中測試luvcview

安裝依賴包

sudo apt-get install debhelper sudo apt-get install libsdl1.2-dev sudo apt-get install libv4l-dev sudo apt-get install pkg-config

下載的0.2.6版本的源碼，make會報錯，將其中的會報錯文件中的

#include <linux/videodev.h>

替換成#include <linux/videodev2.h>

只需要修改三個文件就行了，編譯好的源碼，在我的下載資源中有。地址：

https://download.csdn.net/download/yueni_zhao/86544123?spm=1001.2014.3001.5501

編譯完畢后生成luvcview可執(zhí)行文件

./luvcview

如果找不到攝像頭會出書如下內(nèi)容:

$ ./luvcview luvcview 0.2.6SDL information:Video driver: x11A window manager is available Device information:Device path: /dev/video0 ERROR opening V4L interface: No such file or directory

如果有攝像頭，輸出如下內(nèi)容:

$ ./luvcview luvcview 0.2.6SDL information:Video driver: x11A window manager is available Device information:Device path: /dev/video0 Stream settings:Frame format: MJPGFrame size: 640x480Frame rate: 30 fps

?在虛擬機中安裝FTP服務(wù)器

打開 Ubuntu 的終端窗口，然后執(zhí)行如下命令來安裝 FTP 服務(wù)： sudo apt-get install vsftpd lkmao@ubuntu:~$ sudo apt-get install vsftpd [sudo] password for lkmao: E: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable) E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it? lkmao@ubuntu:~$

安裝器被鎖住了，這都是自動更新的鍋。將自動更新設(shè)置為never。然后重啟

重啟后，開始安裝，等待軟件安裝完成，完成以后使用 VI 命令打開/etc/vsftpd.conf，命令如下：

sudo vi /etc/vsftpd.conf

打開 vsftpd.conf 文件以后找到如下兩行：

local_enable=YES write_enable=YES 確保上面兩行前面沒有“#”，有的話就取消掉，完成以后如圖 4.1.1 所示：

修改完 vsftpd.conf 以后保存退出，使用如下命令重啟 FTP 服務(wù)： sudo /etc/init.d/vsftpd restart

總結(jié)

????????

總結(jié)

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