Difference between revisions of "Video capture from USB camera"
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= Video capture using FFmpeg and Video4Linux = | = Video capture using FFmpeg and Video4Linux = | ||
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FFmpeg project page: http://ffmpeg.org/ | FFmpeg project page: http://ffmpeg.org/ | ||
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Video4Linux wiki: http://linuxtv.org/wiki/index.php/Main_Page | Video4Linux wiki: http://linuxtv.org/wiki/index.php/Main_Page | ||
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Video4Linux kernel documentation: http://www.mjmwired.net/kernel/Documentation/video4linux/v4l2-framework.txt | Video4Linux kernel documentation: http://www.mjmwired.net/kernel/Documentation/video4linux/v4l2-framework.txt | ||
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The FFmpeg tool is not provided with the default NELK root file system. FFmpeg can be added to the root file system: | The FFmpeg tool is not provided with the default NELK root file system. FFmpeg can be added to the root file system: | ||
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* installing it as a package, if the root file system features a package manager and ffmpeg is available as a package | * installing it as a package, if the root file system features a package manager and ffmpeg is available as a package | ||
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| + | The video stream from the USB camera con be E' stato provato ffmpeg per registrare il flusso video di una webcam con questo comando | ||
<pre> | <pre> | ||
ffmpeg -f video4linux2 -r 30 -s 640x480 -i /dev/video0 out.avi | ffmpeg -f video4linux2 -r 30 -s 640x480 -i /dev/video0 out.avi | ||
</pre> | </pre> | ||
| − | + | dove /dev/video0 e' la webcam, se si collega dopo il boot controllare dove viene montata. | |
= Video capture using gstreamer = | = Video capture using gstreamer = | ||
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Revision as of 13:42, 23 January 2013
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Contents
Introduction[edit | edit source]
This article describes various modes for capturing video from an USB camera.
System architecture[edit | edit source]
- Board: NaonEVB-Mid
- Camera: Webcam Logitech HD C310 720p (Product page)
- Connection: USB Host 2.0
Video capture using FFmpeg and Video4Linux[edit | edit source]
FFmpeg project page: http://ffmpeg.org/ Video4Linux wiki: http://linuxtv.org/wiki/index.php/Main_Page Video4Linux kernel documentation: http://www.mjmwired.net/kernel/Documentation/video4linux/v4l2-framework.txt
The FFmpeg tool is not provided with the default NELK root file system. FFmpeg can be added to the root file system:
- manually, building it from source coder
- using a build system, as buildroot or openembedded
- installing it as a package, if the root file system features a package manager and ffmpeg is available as a package
In this article, we assume that
The video stream from the USB camera con be E' stato provato ffmpeg per registrare il flusso video di una webcam con questo comando
ffmpeg -f video4linux2 -r 30 -s 640x480 -i /dev/video0 out.avi
dove /dev/video0 e' la webcam, se si collega dopo il boot controllare dove viene montata.
