如何在 Linux 帧缓冲区上截取屏幕截图或电影
如何捕获 Cell Linux 上的 Linux 帧缓冲区以获得屏幕截图或电影？
是否有工具可以为正在运行的程序执行此操作，或者写入并可能控制帧缓冲区的程序还必须处理捕获和记录？如果是这样，程序将如何执行？
How can the linux frame buffer, on Cell Linux, be captured to obtain either screen shots or movies?
Is there a tool to do this for a running program, or must the program writing to, and presumably controlling, the frame buffer also handle capture and recording? If so, how would the program do so?
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许多工具可以实现此目的，例如 FBGrab 和 fbdump;查看这两个的源代码，扩展其中一个或编写自己的捕获视频而不仅仅是快照将非常容易。
但是，我建议写入帧缓冲区的程序也是一个记录，以便在写入帧之间同步捕获帧（而不是部分通过写入、或跳过或...）
Many tools for doing so, for example FBGrab and fbdump; look at the sources for those two, it would be pretty easy to extend either one or write your own which captures video instead of just snapshots.
However, I would recommend that the program writing to the framebuffer be the one recording as well, in order to synchronize capturing frames between writing them (and not partially through a write, or skipping, or ...)
您可以使用
ffmpeg或avconv（例如avconv -f fbdev -i /dev/fb0 mymovie.flv）。you could use
ffmpegoravconv(eg.avconv -f fbdev -i /dev/fb0 mymovie.flv).