MRL (media resource locator)
MRLs are similar to URLs in your web browser. They describe the media
to read from. Valid MRLs may be plain file names or one of the follow‐
ing:
· Filesystem:
file:<path>
fifo:<path>
stdin:/
· CD and DVD:
dvd:/[<DVD_image>|<device_name>][/<title>.<part>]
vcd://[<CD_image>|<device_name>][@[letter]<number>]
vcdo://...
cdda:/[<device>][/<track-number>]
· Video devices:
v4l://[<tuner_device>/<frequency>]
dvb://<number_or_channel_name>
dvbc://<channel_name>:<tuning_parameters>
dvbs://<channel_name>:<tuning_parameters>
dvbt://<channel_name>:<tuning_parameters>
pvr:/<tmp_files_path>!<saved_files_path>!<max_page_age> (for
WinTV PVR 250 and 350)
· Network:
http://<host>...
tcp://<host>[:<port>] (default port is 7658)
udp://<host>[:<port>[?iface=<interface>]] (default port is 7658)
rtp://<host>[:<port>[?iface=<interface>]] (default port is 7658)
smb://...
mms://<host>...
pnm://<host>...
rtsp://<host>... (requires Real codecs)
NOTE: where a file name is required, the full path must be provided -
from a shell, you can use $PWD/file if the file is in the current
directory.
Several MRLs may be specified in order to play a number of consecutive
streams. Additional input plugins will provide additional MRL types.
The ones listed above are available with stock libxine...
As of xine-lib 1.1.3, the DVD title number may be 0 (select navigation)
and the chapter number may be 0 (full title).
VCD MRL Syntax
A simple vcd:/ runs the default item (e.g. perhaps track 1 or entry 0)
unit, preceded by a colon. An MRL which ends in a colon is like not
adding it at all: the default entry type and number is used. Items come
in 4 flavours: "Track", "Entry", "Playback" and "Segment". These units
are indicated with the capital first letter of each type: T, E, P, S,
s. An uppercase S in the MRL display indicates a NTS segment while a
lowercase S indicates a PAL segment. However when you enter an MRL,
the case of these letters is insignificant.
Depending on the Video CD, you might not have any playable segments
(S,s) or playback control (P). If you give a MRL that refers to a
playback control entry but there is no playback control, your playback
number will silently be converted into the corresponding entry number.
You can configure various things that affect MRLs are selected when
there is some ambiguity in the MRL name. media.vcd.autoplay sets what
kind of unit to to use in a MRL is none is given. Another configura‐
tion setting, vcd.device, determines what device to use if that part is
not given. When you hit the VCD button, that is equivalent to entering
vcd:/ and thus these two configuration settings are used to expand the
MRL.
Some examples of MRLs are given below. In the examples, we assume the
following configuration settings:
vcd:// Play (navigate) default item (in this case Entry ID 0) from the
default device (in this case set to /dev/cdrom)
vcd://@
Same as above
vcd:///dev/cdrom@
Same effect as above since the default device is set to
/dev/cdrom.
vcd:///dev/cdrom@E0
Same as above. But note that this is because we have auto‐
play:entry which is no longer the default value.
vcd:///dev/cdrom2@
Play (navigate) the default item of /dev/cdrom2
vcd:///dev/cdrom2
should be same as above but is currently broken?
vcd:///dev/cdrom2@T1
Play Track 1 from /dev/cdrom2
vcd:///dev/cdrom@S1
Play segment 1 from /dev/cdrom. This assumes that there *is* a
segment 1. Check the MRL list to see if that is the case.
vcd://@3
Play track 3 from default device.
vcd:///dev/cdrom2:1
Play track 1 from /dev/cdrom2.
vcd:///tmp/ntsc.cue@
Play default item (E0) of /tmp/ntsc.bin. Note trailing @.
vcd://ntsc.cue/@E0
Play entry 0 of ntsc.bin.
vcd:///tmp/ntsc.nrg/@E0
Play entry 0 of /tmp/ntsc.nrg (Nero file). Works for some simple
Nero images.
DVB
DVB MRLs require that ~/.xine/channels.conf exists and contains valid
data. This can be obtained by generating a tuning file using the Lin‐
uxTV DVB apps utility "scan" (or "dvbscan" if you’re using a version
newer than 1.1.0):
scan -o zap /usr/share/doc/dvb-utils/examples/scan/dvb-t/uk-PontopPike
(This example is for the writer’s local transmitter, using a file from
the Debian dvb-utils package.)
For the dvbc, dvbs and dvbt MRLs, tuning parameters are expected, tak‐
ing one of the following forms:
DVB-S <frequency>:<polarisation>:<sat_no>:<sym_rate>:<vpid>:<apid>
DVB-C <frequency>:<inversion>:<sym_rate>:<fec>:<qam>:<vpid>:<apid>
DVB-T <frequency>:<inversion>:<bw>:<fec_hp>:<fec_lp>:<qam>:<transmis‐
sion_mode>:<guardlist>:<hierarchy_info>:<vpid>:<apid>
The individual parameters are:
frequency number, usually in kHz
polarisation ‘v’ or ‘h’
sat_no unsigned long, usually 0
sym_rate symbol rate in MSyms/sec
inversion INVERSION_ON, INVERSION_OFF, INVERSION_AUTO
fec, fec_hp, fec_lp FEC_1_2, FEC_2_3, FEC_3_4 ... FEC_8_9, FEC_AUTO,
FEC_NONE
apid audio program ID
SUBTITLE
external subtitle files (any mrl)
Text subtitle files may be appended to the MRL:.
<mrl>#subtitle:<subtitlefile>
This is the normal way to define the subtitle file to use. The
frontend will not take any notice of the subtitle file.
STREAM OPTIONS
After a delimiting # you can add several stream parameters:
novideo
Video will be ignored.
noaudio
Audio will be ignored.
nospu Subpictures will be ignored.
demux:<demux name>
Specify the demux plugin to use.
volume:<level>
Set audio volume.
compression:<level>
Set audio dynamic range compression.
<config entry>:<config value>
Assign a new value to any config entry.
change configuration option ’on the fly’:
You can change a configuration option at any time, using the
special cfg:/ MRL style. The syntax is:
cfg:/<config entry> : <config value>
Unlike stream config option, you can change anything before
playing the stream.
SEE ALSO
xine(1), aaxine(1), gxine(1), toxine(1), totem(1), kaffeine(1) ...
The programs are documented fully on the xine home page:
http://xinehq.de/
AUTHOR
This text was extracted from the xine man page by Darren Salt
<dsalt@users.sourceforge.net>. The xine man page was written by Siggi
Langauf <siggi@debian.org> for the xine project. Lots of additions by
Guenter Bartsch <guenter@users.sourceforge.net>, Daniel Caujolle-Bert
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