Test programs

unicode
	Prints all Teletext and Closed Caption character sets used
	by libzvbi in UTF-8 format. Purpose: compare against specifications
	to verify libzvbi character code to Unicode conversions.

uclist
	Lists all Unicode characters used in a UTF-8 coded text	on
	stdin. NB this script needs access to <http://www.unicode.org/
	Public/UNIDATA/NamesList.txt>. Purpose: verify the libzvbi built-in
	fonts contain all required glyphs.

glyph
	Prints all Teletext and Closed Caption character sets used
	by libzvbi as PPM images. Purpose: compare against specifications
	to verify libzvbi exp-gfx.c Unicode to glyph conversions.

explist
	Lists all export modules and their respective options. If option
	-c|--check given, tests the export [module] api. Use this to test
	new modules.

export
	Exports a Teletext page from a TTX sample stream on stdin, eg.
	./export "text;charset=ISO-8859-1,control=1" 100 <samples/s1-swr >foo.txt
	./capture --sim --pal --sliced | ./export "png" 100 >foo.png
	./capture --pes | ./export "html" 300 >foo.html
	Purpose: test teletext decoder and export modules. (Sample streams
	are in CVS zapping/libvbi/samples, versions before 2003-11.)

caption
	Closed Caption test displaying a hello world message or the
        CC sample stream on stdin, to debug the CC decoder.
	Note this works only on a X11 5:6:5 LE display. The keys
	F1-F8 switch between the Closed Caption channels 1-4
	and Text channels 1-4.

osc
	Raw vbi data visualization. Purpose: test vbi device interface,
	raw vbi decoder. Works only on X11 5:6:5 LE display. (Should use
	Gtk+, huh?) Options:
	-d | --device name
			Default is /dev/vbi.
	-s | --sim	Create artificial raw vbi data instead of
			opening a vbi device, to test decoding in
			absence of a real source.
	-v | --verbose	Trace device access on stderr, may reveal
			why opening a device failed.
	-p | --pal, 
	-n | --ntsc	Video standard hint for simulation and v4l.
			When not given libzvbi may have to guess
			which can fail. Default is PAL.
	-1 | --v4l	On Linux, use the bttv / V4L interface if
			supported by the driver.
	-2 | --v4l2-read
			Use V4L2 interface in read mode.
	-3 | --v4l2-mmap
			Use V4L2 interface in mmap mode (default).
	-e | --ignore-error
			Ignore read errors.

	(--long options are only available on GNU systems.)

capture
	Capture sliced vbi data. Purpose: test vbi device interface,
	raw vbi decoder. Options:
	-d | --device name
			Default is /dev/vbi.
	-s | --sim	Create artificial raw vbi data instead of
			opening a vbi device, to test decoding in
			absence of a real source.
	-v | --verbose	Trace device access on stderr, may reveal
			why opening a device failed. -vv enables
			ioctl logging.
	-p | --pal, 
	-n | --ntsc	Video standard hint for simulation and v4l.
			When not given libzvbi may have to guess
			which can fail. Default is PAL.
	-1 | --v4l	On Linux, use the bttv / V4L interface if
			supported by the driver.
	-2 | --v4l2-read
			Use V4L2 interface in read mode.
	-3 | --v4l2-mmap
			Use V4L2 interface in mmap mode (default).
	-i | --pid n	Use Linux DVB interface instead and filter out
			VBI packets with this PID.
	-e | --ignore-error
			Ignore read errors.
	-r | --strict n How strictly shall the raw VBI decoder match
		        VBI services against driver capabilities?
			0 - loose, let's try anyway (default)
			1 - medium, usually no problems with the
			    accepted services (see --verbose)
			2 - pedantic, when the signal is good all
			    accepted services will work
	--read		Use libzvbi capture read interface (default).
	--pull		Use libzvbi capture pull interface, to test
			if it works.

	Options to write sliced vbi data _as_ASCII_ to standard output
	(these are moving to test/decode, see there for more options):

	--dump-wss	Wide Screen Signalling (PAL & NTSC-Japan).
	--dump-vps	Video Programming System (PAL in DE/AT/CH).
	--dump-sliced	Everything.

	Options to write sliced vbi data _in_binary_format_ to standard
	output. This can be piped
		"./capture <options> --pes | ./export <options>" or
		"./capture <options> --sliced | ./decode <options>" or
		"./capture <options> --sliced | ./caption".
	-l | --sliced	Write sliced vbi data (an old ad-hoc format).
	-P | --pes	Write DVB PES packets. Note when the source is a
	                DVB device this will not pass through but de- and
			remultiplex PES packets. PES output is experimental,
			use at your own risk.
	-T | --ts	Write TS packets with PID 999 (experimental)

	The caption, decode and export tools all support --sliced and
	--pes format (may require a --pes option to recognize the format).

	--long options are only available on GNU & compatible systems.

wss
	Test/demo app capturing a WSS signal from video images (V4L2
	only). Type ./wss -h for options.

decode
	Decodes sliced VBI data on stdin, e. g.
	./capture --sliced | ./decode --ttx
	Type ./decode -h for options.

sliced2pes
	Converts ./capture --sliced format to DVB PES.  For example
	"./capture --sliced | ./sliced2pes >file" is equivalent to
	"./capture --pes >file". No options.

ttxfilter
	Filters Teletext pages out of a VBI stream. Useful mostly
	to extract subtitles, for example
	"./capture --sliced | ./ttxfilter 150 777 300-400 >file".
	Type ./ttxfilter -h for options.

The ultimate test is http://zapping.sourceforge.net, the TV viewer this
library was written for.