BPI-CM9-Linux/aml-comp/vendor/amlogic/zvbi/test/README

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.

	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.


	Note you will need another application to tune in a channel,
	for example v4lctl from the xawtv package or czap/szap/tzap from
	the dvbutils package:

	v4lctl setstation BBC
	./capture --device /dev/vbi --sliced | ./export text 100

	tzap BBC # keep it running in another terminal window
	./capture --device /dev/dvb/adapter0/demux0 --pid 1234 --sliced | \
	  ./export text 100

	The capture tool cannot automatically determine the PID of the
	DVB VBI stream. To find it you will need another tool evaluating
	the service information tables transmitted by the network, or you
	can look for the PID of the video stream in the tzap config file
	and try a slightly higher number.

decode
	Decodes sliced VBI data on stdin, e. g.
	./capture --sliced | ./decode --ttx
	Also a test of the libzvbi low-level decoders.
	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".
	Type ./sliced2pes -h for 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.

test-*.cc
	Unit tests (make check).

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