zapping_setup_fb(1) [debian man page]
ZAPPING_SETUP_FB(1) [FIXME: manual] ZAPPING_SETUP_FB(1) NAME
zapping_setup_fb - prepares V4L/V4L2 driver for overlay SYNOPSIS
zapping_setup_fb [-?, -h, --help, --usage] [-b, --bpp NUMBER] [-c, --child] [-d, --device FILENAME] [-D, --display NAME] [-f, --fd] [-q, --quiet] [-S, --screen SCREEN NUMBER] [-v, --verbose] [-V, --version] DESCRIPTION
zapping_setup_fb is a small program to prepare Video For Linux (V4L) or Video For Linux Two (V4L2) video capture drivers for video overlay. It must be executed by pam(8) with root privileges, or owned by root with the set-user-ID bit set (see chmod(1)). This manual page refers to zapping_setup_fb version 0.13. BACKGROUND
To enable video overlay V4L and V4L2 drivers need to know the screen memory address. For security reasons only the system administrator can program this address. zapping(1) delegates the task to this helper application. OPTIONS
-?, -h, --help, --usage Prints usage information on stdout, then terminates the program. -b, --bpp NUMBER Color depth hint, the number of bits per pixel on the display in question, either 24 or 32. Usually zapping_setup_fb can determine this number automatically. -c, --child Zapping sets this flag when executing zapping_setup_fb as child process to enable the output of localized error messages in UTF-8 encoding on stderr. -d, --device FILENAME The video capture device to open, by default /dev/video0. -D, --display NAME The X display to use. Defaults to the name defined by the DISPLAY environment variable. -f, --fd NUMBER Zapping uses this option when executing zapping_setup_fb as child process to access the video capture driver by this shared file descriptor instead of opening the device file by name. -q, --quiet Decrements the verbosity level. -S, --screen NUMBER The X screen to use (Xinerama), defaults to 0. -v, --verbose Increments the verbosity level. -V, --version Prints the version of zapping_setup_fb on stdout, then terminates the program. BUGS
None known. SEE ALSO
zapping(1), zapping_remote(1), pam(8) AUTHORS
Zapping and zapping_setup_fb were written by Inaki Garcia Etxebarria, Michael H. Schimek (mschimek@users.sourceforge.net) and many contributors. This manual page was written by Michael H. Schimek based on work by Christian Marillat. [FIXME: source] 04/16/2012 ZAPPING_SETUP_FB(1)
Check Out this Related Man Page
ZAPPING(1) [FIXME: manual] ZAPPING(1) NAME
zapping - a Gnome TV and Teletext viewer SYNOPSIS
zapping [-b, --bpp NUMBER] [-c, --command STRING] [--console-errors] [--cpu-features FEATURES] [-d, --debug] [--device FILENAME] [--dword-align] [-n, --tunerless-norm STRING] [--no-overlay, --remote] [--no-plugins] [--no-vbi] [--no-xv-image] [--no-xv-video] [-v, --no-xv] [--xv-image-port NUMBER] [--xv-port NUMBER, --xv-video-port NUMBER] [-y, --yuv-format STRING] [-z, --no-zsfb] DESCRIPTION
Zapping is a program to watch TV on a computer, within the Gnome environment. You can take screenshots and record video and audio. Zapping has a Teletext viewer built in and supports Closed Caption and Teletext subtitles. For more information open the Gnome help and choose Applications -> Multimedia -> Zapping. This manual page refers to zapping version 0.10. OPTIONS
-b, --bpp NUMBER Color depth of the X display. In TrueColor mode (24 or 32 bits per pixel) you might get a very distorted image that spreads all around the desktop. This usually means Zapping could not correctly determine the color depth, which can be given here. -c, --command COMMAND Execute the given command and exit. This was intended to create a sort of batch mode, you may want to use zapping_remote(1) instead. Only one command is implemented. The set_channel command allows one to change the channel by giving the channel name or RF channel number, for example: zapping -c "set_channel BBC" --console-errors Redirect the error messages to the console, useful for bug reports. --cpu-features FEATURES Override the CPU detection for tests. Possible features are: none, mmx, 3dnow, sse, sse2, sse3, altivec. When your CPU does not support the given features Zapping may crash. -d, --debug Print debug messages on standard output. You should include this information when submitting a bug report, as it can help to trace the problem. --device FILENAME Kernel video device to use, usually /dev/video. You can specify emulator for tests. --dword-align Forces doubleword alignment of the video in overlay mode. Can help when the image is distorted at certain sizes but looks fine at others. -n, --tunerless-norm STRING This option has no function but is recognized for compatibility with earlier versions of Zapping. It determined the video standard to be used when your TV card has no tuner, one of NTSC, PAL or SECAM. --no-overlay, --remote Do not overlay video. The --remote option refers to the X display. Overlay is only possible if the graphics card and TV card are plugged into the same computer. Capture mode is possible on a remote display (on another computer or in a nested display) but requires a high network bandwidth. --no-plugins Do not use any plugins, usually for testing purposes. --no-vbi Do not capture and decode VBI data, i.e. Teletext, Subtitles, Closed Caption and station names. This option is intended for tests and applies only to the current session. To override it or disable VBI support permanently see the Devices -> VBI section in the Zapping preferences. --no-xv-video Do not use the XVideo extension for video overlay. --no-xv-image Do not use the XVideo extension for hardware image scaling. -v, --no-xv Do not use the XVideo extension for video overlay or hardware image scaling. --xv-image-port NUMBER Number of the XVideo port to use for hardware image scaling. Zapping lists the available ports with the -d option. --xv-port NUMBER, --xv-video-port NUMBER Number of the XVideo port (similar to a device) to use for video overlay. Zapping lists the available ports with the -d option. -y, --yuv-format STRING This option has no function but is recognized for compatibility with earlier versions of Zapping. It determined the pixel format in capture mode when XVideo hardware image scaling was available, either YUYV or YVU420. -z, --no-zsfb This option has no function but is recognized for compatibility with earlier versions of Zapping. It used to prevent the execution of zapping_setup_fb(1) on startup. Now Zapping calls the helper application only if necessary. SEE ALSO
zapping_remote(1), zapping_setup_fb(1) AUTHORS
Zapping was written by Inaki Garcia Etxebarria, Michael H. Schimek (mschimek@users.sourceforge.net) and many contributors. This manual page was written by Michael H. Schimek based on work by Christian Marillat. CONTACT
Zapping homepage: http://zapping.sourceforge.net Please report bugs with the Zapping bug tracker http://sourceforge.net/tracker/?group_id=2599 or mail us at zapping-misc@lists.sourceforge.net [FIXME: source] 04/16/2012 ZAPPING(1)