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552b7f32aa
Original commit message from CVS: Changes to gstreamer-config to include gtk+ libs manual changes: queues, threads, programs gsteditor does not crash anymore. gstpipline new should return a GstElement * fixed ac3dec for new getbits fixes to gstreamer-launch more efficient startup for gstplay.
107 lines
3.6 KiB
Plaintext
107 lines
3.6 KiB
Plaintext
<chapter id="cha-programs">
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<title>Programs</title>
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<para>
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</para>
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<sect1>
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<title><command>gstreamer-config</command></title>
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<para>
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<command>gstreamer-config</command> is a script to get information about the installed
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version of <application>GStreamer</application>.
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This program "knows" what compiler switches are needed to compile programs that use
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<application>GStreamer</application>.
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</para>
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<para>
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<command>gstreamer-config</command> accepts the following options:
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<itemizedlist>
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<listitem>
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<para>
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<option>--version</option> Print the currently installed version of
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<application>GStreamer</application> on the standard output.
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</para>
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</listitem>
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<listitem>
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<para>
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<option>--libs</option> Print the linker flags that are necessary to link a
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<application>GStreamer</application> program.
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</para>
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</listitem>
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<listitem>
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<para>
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<option>--cflags</option> Print the compiler flags that are necessary to compile a
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<application>GStreamer</application> program.
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</para>
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</listitem>
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<listitem>
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<para>
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<option>--prefix=<replaceable>PREFIX</replaceable></option>
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If specified, use <replaceable>PREFIX</replaceable> instead of the installation
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prefix that <application>GStreamer</application> was built with when computing the
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output for the <option>--cflags</option> and <option>--libs</option> options.
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This option is also used for the exec prefix if
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<option>--exec-prefix</option> was not specified. This option must be specified before any
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<option>--libs</option> or <option>--cflags</option> options.
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</para>
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</listitem>
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<listitem>
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<para>
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<option>--exec-prefix=<replaceable>PREFIX</replaceable></option>
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If specified, use <replaceable>PREFIX</replaceable> instead of the installation exec
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prefix that <application>GStreamer</application> was built with when computing the
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output for the <option>--cflags</option> and <option>--libs</option> options. This option must be
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specified before any <option>--libs</option> or <option>--cflags</option>
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options.
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</para>
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</listitem>
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</itemizedlist>
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</para>
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<para>
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A simple <filename>Makefile</filename> will contain something like:
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<programlisting>
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CC = gcc
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helloworld2: helloworld2.c
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$(CC) -Wall `gstreamer-config --cflags --libs` helloworld2.c -o helloworld2
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clean:
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rm -f *.o helloworld2
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</programlisting>
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</para>
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</sect1>
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<sect1>
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<title><command>gstreamer-register</command></title>
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<para>
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<command>gstreamer-register</command> is used to rebuild the database of plugins.
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It is used after a new plugin has been added to the system. The plugin database
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can be found in <filename>/etc/gstreamer/reg.xml</filename>.
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</para>
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</sect1>
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<sect1>
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<title><command>gstreamer-launch</command></title>
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<para>
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This is a tool that will construct pipelines based on a command-line
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syntax.
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</para>
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<para>
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A simple commandline looks like:
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<screen>
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gstreamer-launch disksrc hello.mp3 ! mp3parse ! mpg123 ! audiosink-oss
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</screen>
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A more complex pipeline looks like:
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<screen>
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gstreamer-launch disksrc redpill.vob ! css-descramble ! private_stream_1.0 ! \
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(ac3parse ! ac3dec ! audiosink) video_0 ! (mpeg2dec ! videosink)
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</screen>
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</para>
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</sect1>
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</chapter>
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