mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-24 10:41:04 +00:00
d61cbc8ea0
Original commit message from CVS: Updated the examples exit if the pipeline doesn't want to go to the playing state.
115 lines
3.8 KiB
Text
115 lines
3.8 KiB
Text
gstreamer-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:
|
|
|
|
gstreamer-launch disksrc location=music.mp3 ! mad ! osssink
|
|
|
|
This plays an mp3 music file music.mp3 using libmad, and:
|
|
|
|
gstreamer-launch disksrc location=music.mp3 ! mp3parse ! mpg123 ! osssink
|
|
|
|
Plays and mp3 music file using mpg123
|
|
|
|
You can also stream files over http:
|
|
|
|
gstreamer-launch httpsrc location=http://domain.com/music.mp3 ! mad ! osssink
|
|
|
|
And using gnome-vfs you can do the same with:
|
|
|
|
gstreamer-launch gnomevfssrc location=music.mp3 ! mad ! osssink
|
|
gstreamer-launch gnomevfssrc location=http://domain.com/music.mp3 ! mad ! osssink
|
|
|
|
And too play the same song with gnome-vfs via smb:
|
|
|
|
gstreamer-launch gnomevfssrc location=smb://computer/music.mp3 ! mad ! osssink
|
|
|
|
Here we convert a Mp3 file into an Ogg Vorbis file:
|
|
|
|
gstreamer-launch disksrc location=music.mp3 ! mad ! vorbisenc ! disksink location=music.ogg
|
|
|
|
And then we can play that file with:
|
|
|
|
gstreamer-launch disksrc location=music.ogg ! vorbisdec ! osssink
|
|
|
|
Some other useful pipelines are..
|
|
Plays wav files (currently there are no wav encoders):
|
|
|
|
gstreamer-launch disksrc location=music.wav ! parsewav ! osssink
|
|
|
|
Converts wav files into mp3 and ogg files:
|
|
|
|
gstreamer-launch disksrc location=music.wav ! parsewav ! vorbisenc ! disksink location=music.ogg
|
|
gstreamer-launch disksrc location=music.wav ! parsewav ! mpegaudio ! disksink 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:
|
|
|
|
gstreamer-launch cdparanoia ! mpegaudio ! disksink location=cd.mp3
|
|
|
|
You can toy around with gstreamer-inspect to discover the settings for
|
|
cdparanoia to rip individual tracks
|
|
|
|
Record sound from your sound input and encode it into an ogg file:
|
|
|
|
gstreamer-launch osssrc ! vorbisenc ! disksink location=input.ogg
|
|
|
|
gstreamer-launch not only handles audio but video as well:
|
|
For mpeg1 files (video and audio streams respectively):
|
|
|
|
gstreamer-launch disksrc location=video.mpg ! mpegdemux video_00! { queue ! mpeg2dec ! sdlvideosink }
|
|
gstreamer-launch disksrc location=video.mpg ! mpegdemux audio_00! { queue ! mad ! osssink }
|
|
|
|
For mpeg2 files (video and audio streams respectively):
|
|
|
|
gstreamer-launch disksrc location=video.mpeg ! mpegdemux video_00! { queue ! mpeg2dec ! sdlvideosink }
|
|
gstreamer-launch disksrc location=video.mpeg ! mpegdemux private_stream_1.0! { queue ! ac3dec ! osssink }
|
|
|
|
Note: The types of audio streams in the mpeg files can vary!
|
|
|
|
gstreamer-complete
|
|
==================
|
|
|
|
This is a simple utility which provides custom bash completion when
|
|
typing gstreamer-launch commands.
|
|
|
|
Simply run "gstreamer-compprep" as root to build the registry of completions,
|
|
and then put, in your .bashrc,
|
|
"complete -C gstreamer-complete gstreamer-launch"
|
|
(ensuring that gstreamer-complete is on your path).
|
|
|
|
You can then enjoy context sensitive tab-completion of gstreamer-launch
|
|
commands.
|
|
|
|
|
|
gstreamer-register
|
|
==================
|
|
|
|
This tool will perform an introspection on all available plugins and will
|
|
create a registry file in /etc/gstreamer/reg.xml. Startup time will be
|
|
much faster since the gstreamer core doesn't have to bring all the plugins
|
|
files into memory at startup. As with gstreamer-compprep you need to run this
|
|
as root for it too work correctly.
|
|
|
|
|
|
gstreamer-inspect
|
|
=================
|
|
|
|
Allows you to check the properties of plugins and elements.
|
|
|
|
./gstreamer-inspect
|
|
|
|
will show all the plugins available and the elements they contain.
|
|
|
|
./gstreamer-inspect <pluginname/elementname>
|
|
|
|
shows more info about the plugin/element.
|
|
|
|
|