Webcam and Video Wizardry - Raspberry Pi for Secret Agents - page 68

4. From the Media drop-down menu, select Open Network Stream… .
5. Enter the direct stream URL we learned from the MJPG-streamer demo
pages ( http://[IP address]:8080/?action=stream ), and click on the
Play button.
6. (Optional) You can add live audio monitoring from the webcam by opening
up a command prompt window and typing in the command line you learned
from the Listening in on conversations from a distance section in Chapter 2 ,
Audio Antics :
C:\ "C:\Program Files (x86)\PuTTY\plink" pi@[IP address] -pw
[password] sox -t alsa plughw:1 -t sox - | "C:\Program Files
(x86)\sox-14-4-1\sox" -q -t sox - -d

Viewing in Mac OS X
Let's install VLC and open up the camera stream:

1. Visit http://www.videolan.org and download the latest version of the
VLC installer package ( vlc-2.1.5.dmg , at the time of writing).
2. Double-click on the VLC disk image and drag the VLC icon to the
Applications folder.
3. Launch VLC from the Applications folder.
4. From the File drop-down menu, select Open Network… .
5. Enter the direct stream URL you learned from the MJPG-streamer demo
pages ( http://[IP address]:8080/?action=stream ) and click on the
Open button.
6. (Optional) You can add live audio monitoring from the webcam by opening
up a Terminal window (located in /Applications/Utilities ) and typing
in the command line you learned from the Listening in on conversations from a
distance section in Chapter 2 , Audio Antics :
$ ssh pi@[IP address] sox -t alsa plughw:1 -t sox - | sox -q -t
sox - -d

Viewing in Linux
Let's install VLC or MPlayer and open up the camera stream:

1. Use your distribution's package manager to add the vlc or mplayer package.

2. For VLC, either use the GUI to open a network stream or launch it from the

command line with this command:
$ vlc http://[IP address]:8080/?action=stream