gstreamer/tools
Stefan Kost 3eb97aa32c gst-launch: add a sync bus handler and move state-change logging there
The sync handler is called for all mesages, the event loop we previously used
was not. In the sync handler trigger pipeline dot dumps and call access for a
file in tmp-dir to add markers interceptable by strace and co.
2010-09-09 15:59:55 +03:00
..
.gitignore ignore more 2005-06-17 09:12:33 +00:00
BUGS gstreamer-register -> gst-register gstreamer-launch -> gst-launch etc. 2002-02-04 20:33:14 +00:00
gst-feedback-m.m tools/gst-feedback-m.m: Don't only use unversioned tools, try versioned tools as well (#345086). 2006-06-21 10:14:00 +00:00
gst-feedback.1.in tools/gst-feedback.1.in: Fix typo: s/feeback/feedback/ (#133494). 2006-03-21 15:42:02 +00:00
gst-indent gst-indent: Add --leave-preprocessor-space for indent 2.2.11 2010-04-03 20:51:17 +02:00
gst-inspect.1.in docs: fix typo on gst-inspect man page 2010-07-16 18:20:57 +01:00
gst-inspect.c gst-inspect: don't use gst_structure_foreach() on NULL pointers 2010-09-07 11:10:06 +01:00
gst-launch.1.in gst-launch: Fix OIL_CPU_FLAGS docs for Orc 2010-08-24 12:51:41 -07:00
gst-launch.c gst-launch: add a sync bus handler and move state-change logging there 2010-09-09 15:59:55 +03:00
gst-plot-timeline.py tools/gst-plot-timeline.py: Fix parsing of log messages 2008-07-02 12:23:12 +00:00
gst-run.c tools: fix gst-run wrapper to work on Windows 2010-05-05 17:08:32 +01:00
gst-typefind.1.in tools/: cleanup man-pages, remove reference to gst-register, document env-vars 2006-01-12 16:31:35 +00:00
gst-typefind.c tools: call g_set_prgname() before doing the option parsing 2010-02-16 11:33:19 +00:00
gst-xmlinspect.1.in tools/: cleanup man-pages, remove reference to gst-register, document env-vars 2006-01-12 16:31:35 +00:00
gst-xmlinspect.c tools: call g_set_prgname() before doing the option parsing 2010-02-16 11:33:19 +00:00
gst-xmllaunch.1.in tools: deprecate gst-xmllaunch and print fat warning if someone tries to use it 2010-06-24 17:53:36 +01:00
gstreamer-completion tools/gstreamer-completion: Replacement for gst-complete written in sh and sed. Only completes names of features, bu... 2005-12-25 03:45:45 +00:00
Makefile.am gstxml: Deprecate GstXml and related functions 2010-06-25 18:25:40 +02:00
README tools/: cleanup man-pages, remove reference to gst-register, document env-vars 2006-01-12 16:31:35 +00:00
tools.h tools: call g_set_prgname() before doing the option parsing 2010-02-16 11:33:19 +00:00
xml2text.xsl - indentation fixes 2003-02-21 19:41:02 +00:00

gst-launch
================

This is a tool that will construct pipelines based on a command-line
syntax.  The syntax is rather complex to enable all the features I want it
to have, but should be easy to use for most people.  Multi-pathed and
feedback pipelines are the most complex.

A simple commandline looks like:

 gst-launch filesrc location=music.mp3 ! mad ! osssink

This plays an mp3 music file music.mp3 using libmad, and:

 gst-launch filesrc location=music.mp3 ! mp3parse ! mpg123 ! osssink

Plays and mp3 music file using mpg123

You can also stream files over http:

 gst-launch httpsrc location=http://domain.com/music.mp3 ! mad ! osssink

And using gnome-vfs you can do the same with:

 gst-launch gnomevfssrc location=music.mp3 ! mad ! osssink
 gst-launch gnomevfssrc location=http://domain.com/music.mp3 ! mad ! osssink

And too play the same song with gnome-vfs via smb:

 gst-launch gnomevfssrc location=smb://computer/music.mp3 ! mad ! osssink

Here we convert a Mp3 file into an Ogg Vorbis file:

 gst-launch filesrc location=music.mp3 ! mad ! vorbisenc ! filesink location=music.ogg

And then we can play that file with:

 gst-launch filesrc location=music.ogg ! oggdemux ! vorbisdec ! audioconvert ! osssink

Some other useful pipelines are..
Plays wav files (currently there are no wav encoders):

 gst-launch filesrc location=music.wav ! wavparse ! osssink

Converts wav files into mp3 and ogg files:

 gst-launch filesrc location=music.wav ! wavparse ! vorbisenc ! filesink location=music.ogg
 gst-launch filesrc location=music.wav ! wavparse ! mpegaudio ! filesink location=music.mp3

You can also use lame for mp3 encoding if you have it installed, it does a 
much better job than mpegaudio.

Rips all songs from cd and saves them into a mp3 file:

 gst-launch cdparanoia ! mpegaudio ! filesink location=cd.mp3

You can toy around with gst-inspect to discover the settings for 
cdparanoia to rip individual tracks

Record sound from your sound input and encode it into an ogg file:

 gst-launch osssrc ! vorbisenc ! filesink location=input.ogg

gst-launch not only handles audio but video as well:
For mpeg1 files (video and audio streams respectively):

 gst-launch filesrc location=video.mpg ! mpegdemux video_00! { queue ! mpeg2dec ! sdlvideosink }
 gst-launch filesrc location=video.mpg ! mpegdemux audio_00! { queue ! mad ! osssink }

for mpeg1 with both audio and video (for glib2):

 gst-launch filesrc location=video.mpg ! mpegdemux name=demux video_00! { queue ! mpeg2dec ! sdlvideosink } demux.audio_00! { queue ! mad ! osssink }

for mpeg1 with both audio and video (for gtk1.2, the shim doesn't handle the 'name' property yet):

 gst-launch filesrc location=video.mpg ! mpegdemux video_00! { queue ! mpeg2dec ! sdlvideosink } mpegdemux0.audio_00! { queue ! mad ! osssink }

For mpeg2 files (video and audio streams respectively):
 
 gst-launch filesrc location=video.mpeg ! mpegdemux video_00! { queue ! mpeg2dec ! sdlvideosink }
 gst-launch filesrc location=video.mpeg ! mpegdemux private_stream_1.0! { queue ! a52dec ! osssink }

for mpeg2 with both audio and video (glib2):

 gst-launch filesrc location=video.mpg ! mpegdemux name=demux video_00! { queue ! mpeg2dec ! sdlvideosink } demux.private_stream_1.0! { queue ! a52dec ! osssink }

Note: The types of audio streams in the mpeg files can vary!

For an avi file (DivX, mjpeg,...)

 gst-launch filesrc location=video.avi ! avidecoder video_00! { queue ! sdlvideosink } avidecoder0.audio_00! { queue ! osssink }



gst-complete
==================

This is a simple utility which provides custom bash completion when
typing gst-launch commands. 

Simply run "gst-compprep" as root to build the registry of completions,
and then put, in your .bashrc,
"complete -C gst-complete gst-launch"
(ensuring that gst-complete is on your path).

You can then enjoy context sensitive tab-completion of gst-launch
commands.



gst-inspect
=================

Allows you to check the properties of plugins and elements.

 ./gst-inspect 
 
will show all the plugins available and the elements they contain.

 ./gst-inspect <pluginname/elementname>

shows more info about the plugin/element.



gst-xmlinspect
=================

Dump properties of plugins and elements in an xml format. You can 
transform the xml to something else with an appropriate stylesheet.

 ./gst-xmlinspect <elementname> | xsltproc xml2text.xsl -