gstreamer/tools
Tim-Philipp Müller 4d79cbe7ef tools: fix compiler warning
gst-launch.c: In function ‘print_toc_entry’:
gst-launch.c:446:3: error: the size of array ‘spc’ can’t be evaluated [-Werror=vla]
gst-launch.c:446:3: error: variable-sized object may not be initialized
2012-04-03 09:27:09 +01:00
..
.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 Suppress deprecation warnings in selected files, for g_value_array_* mostly 2012-02-27 13:43:59 +01:00
gst-launch.1.in docs, gst: typo fixes 2011-09-07 18:03:17 +01:00
gst-launch.c tools: fix compiler warning 2012-04-03 09:27:09 +01:00
gst-plot-timeline.py tools: fix parsing of timestamp in gst-plot-timeline 2010-10-05 11:52:24 +02:00
gst-run.c tools: make unversioned wrapper look for -0.10 tools only 2011-08-05 12:12:33 +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 g_thread_init() is deprecated in glib master 2011-12-03 17:40:53 +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 g_thread_init() is deprecated in glib master 2011-12-03 17:40:53 +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 android: make it ready for androgenizer 2011-04-11 01:08:07 +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 -