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XINE

Section: File Formats (5)
Updated: 2005-06-15
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NAME

xine - a free video player  

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 following (see also the notes below):
* Filesystem:

file:<path>
fifo:<path>
stdin:/

* CD and DVD:

dvd:/[<device_name>][/<title>.<part>]
dvd:/<DVD_image_file_or_directory>[/<title>.<part>]
vcd://[<CD_image>|<device_name>][@[letter]<number>]
vcdo://<track_number>
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>
dvba://<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 "$PWD/file" or "$(pwd)/file" or "`pwd`/file" if the file is in the current directory. (Which one depends on your shell; all three work in bash.)

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) using the default VCD device (perhaps /dev/cdrom). Both the default item and default device are user-configurable.

It is however also possible to specify both Video CD device/filename and item explicitly in the MRL.

For example vcd:/dev/dvd specifies the default entry using device /dev/dvd which might useful if this is your DVD which is different than your CD-ROM device and your DVD drive can play CD's. And vcd://test_svcd_ntsc.cue specifies the cue file for CD image on disk. (test_svcd_ntsc.bin is the corresponding bin file, but using that won't work.)

After the optional device name or file name, you can name the kind of 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 NTSC 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 configuration 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 autoplay: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://@P1
Play playlist item 1 from default device. If there is no playback control, the MRL will be converted into vcd:/@E0. Again check the MRL list to see if there is a P1.
vcd://@P1*
Probably same as above.
vcd:///dev/cdrom@E1
Play Entry id 1 from default device.
vcd://@S0
Play segment 0 from default device.
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 LinuxTV 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 >~/.config/xine-lib/channels.conf

(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, taking one of the following forms:

DVB-S
<frequency>:<polarisation>:<sat-no>:<sym-rate>:<vpid>:<apid>:<service-id>
DVB-C
<frequency>:<inversion>:<sym-rate>:<fec>:<qam>:<vpid>:<apid>:<service-id>
DVB-T
<frequency>:<inversion>:<bw>:<fec-hp>:<fec-lp>:<qam>:<transmission-mode>:<guardlist>:<hierarchy-info>:<vpid>:<apid>:<service-id>
DVB-A
<frequency>:<qam>:<vpid>:<apid>:<service-id>

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
qam
QPSK, QAM_128, QAM_16 ...
bw
BANDWIDTH_6_MHZ, BANDWIDTH_7_MHZ, BANDWIDTH_8_MHZ
transmission-mode
TRANSMISSION_MODE_2K, TRANSMISSION_MODE_8K
guardlist
GUARD_INTERVAL_1_4, GUARD_INTERVAL_1_8, GUARD_INTERVAL_1_16, GUARD_INTERVAL_1_32,
hierarchy-info
HIERARCHY_1, HIERARCHY_2, HIERARCHY_4, HIERARCHY_NONE
vpid
video program ID
apid
audio program ID
service-id
service ID (needed for now/next information etc.)
 

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 <f1rmb@users.sourceforge.net>, Rocky Bernstein <rocky@panix.com>, and Philipp Hahn <pmhahn@users.sourceforge.net>.


 

Index

NAME
MRL (media resource locator)
VCD MRL Syntax
DVB
SUBTITLE
STREAM OPTIONS
SEE ALSO
AUTHOR




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