Dear Stefano, everybody,
In Ubuntu I had to install libxvmc-dev (which triggers the installation of libx11-dev, libxext-dev, x11proto-video-dev and libxv-dev).
The main problems is that the configure command does not complain when options are incompatible with the installed system. So, "configure --enable-x11grab" will SILENTLY proceed to build ffmpeg, WITHOUT x22grab input when some libraries are missing.
The problematic part: enabled x11grab && check_header X11/Xlib.h && check_header X11/extensions/XShm.h && check_header X11/extensions/Xfixes.h && check_func XOpenDisplay -lX11 && check_func XShmCreateImage -lX11 -lXext && check_func XFixesGetCursorImage -lX11 -lXext -lXfixeswhich, of course, is correct, but, IMHO, should STOP and give an ERROR message if such checkings fails,
Just a suggestion, best regards, Gabriel Huecas On 07/27/2010 11:56 AM, Stefano Sabatini wrote:
On date Tuesday 2010-07-27 14:30:20 +0530, Sridhar Venkataraman encoded:Hi All. I am planning to use FFMpeg to record my screen actions(for a screencast) for Windows and Mac. I have the following questions regarding that and would be glad if someone could answer them. 1. Can FFMpeg be used to do screen capture (I am looking at recording my actions on my desktop as well as recording the audio from Mic) ? After going through the internet felt that we can do it. Can someone please confirm thisMy quick answer is *no* at least for Windows, there is no screen capturing device available for it, and I currently have no much ideas about which capturing interface is used in Windows (and BTW that would be possible implementing such an interface).2. I believe to do screen capture we have to enable -x11grab in the configuration while compiling FFMpeg. Even after compiling FFMpeg with -x11grab I was unable to use the command. Got an error saying "Unknown input format - x11grab". Though I have compiled can someone please share me some good URL that gives me step-by-step guide explaining how to recompile FFMpeg on Windows and Mac?There is a glitch in the configure, for which if you enabled --enable-x11grab and the configure cannot find the lbraries/headers required, it will not complain and x11grab will be disabled. Maybe I'll have a look at that. As for what regards Linux/Mac (I'm not sure x11grab is available there): http://verb3k.wordpress.com/2010/01/26/how-to-do-proper-screencasts-on-linux/I am pretty new to FFMpeg, so would appreciate if someone could guide me over this. If you feel the questions asked have been answered already in some other thread, would be great if you could direct me over there. Thanks in advance.Regards. _______________________________________________ libav-user mailing list [email protected] https://lists.mplayerhq.hu/mailman/listinfo/libav-user
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