mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-26 18:20:44 +00:00
f790fcbfa6
Only converted basetransform for the moment. It's probably easier to write templates from scratch from the documentation.
383 lines
9.5 KiB
Bash
Executable file
383 lines
9.5 KiB
Bash
Executable file
#!/bin/sh
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prefix=gst
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basedir=`dirname $0`
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templatedir=$basedir/element-templates
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while [ "$1" ] ; do
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case $1 in
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--help)
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cat <<-EOF
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Usage: element-maker [OPTIONS] ELEMENT_NAME BASE_CLASS
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Create a GStreamer element that subclasses BASE_CLASS.
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Options:
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--help Print this information
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--prefix PREFIX Use PREFIX instead of "gst"
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Example: 'element-maker my_element basetransform' will create the files
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gstmyelement.c and gstmyelement.h that implement GstMyElement, a
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subclass of GstBaseTransform, as an element named myelement.
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EOF
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exit 0
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;;
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--prefix)
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shift
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prefix=$1
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;;
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-*)
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echo Unknown option: $1
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exit 1
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;;
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*)
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if [ "$name" = "" ]; then
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name=$1
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elif [ "$class" = "" ]; then
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class=$1
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else
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echo Ignored: $1
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fi
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esac
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shift
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done
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if [ "$name" = "" -o "$class" = "" ] ; then
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echo "Usage: element-maker [OPTIONS] ELEMENT_NAME BASE_CLASS"
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exit 1
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fi
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if [ ! -f "$templatedir/$class" ] ; then
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echo "Template file for $class not found."
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exit 1
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fi
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PREFIX=$(echo $prefix | sed -e 's/\(.*\)/\U\1/')
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NAME=$(echo $name | sed -e 's/\(.*\)/\U\1/')
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Prefix=$(echo $prefix | sed -e 's/_\(.\)/\U\1/g' -e 's/^\(.\)/\U\1/')
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Name=$(echo $name | sed -e 's/_\(.\)/\U\1/g' -e 's/^\(.\)/\U\1/')
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name=$(echo $name | sed -e 's/\(.*\)/\L\1/')
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GST_IS_REPLACE=${PREFIX}_IS_${NAME}
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GST_REPLACE=${PREFIX}_${NAME}
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GST_TYPE_REPLACE=${PREFIX}_TYPE_${NAME}
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GstReplace=${Prefix}${Name}
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gst_replace=${prefix}_${name}
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gstreplace=${prefix}$(echo $name | sed -e 's/_//g')
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replace=$(echo $name | sed -e 's/_//g')
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if [ "$REAL_NAME" = "" ] ; then
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REAL_NAME=FIXME
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fi
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if [ "$EMAIL_ADDRESS" = "" ] ; then
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EMAIL_ADDRESS=fixme@example.com
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fi
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pkg=`grep -A 10000 '^% pkg-config' $templatedir/$class | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1`
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GST_TYPE_BASE_REPLACE=`grep -A 10000 '^% TYPE_CLASS_NAME' $templatedir/$class | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1`
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GstBaseReplace=`grep -A 10000 '^% ClassName' $templatedir/$class | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1`
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pads=`grep -A 10000 '^% pads' $templatedir/$class | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1`
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generate ()
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{
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cat <<-EOF
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/* GStreamer
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* Copyright (C) $(date +%Y) $REAL_NAME <$EMAIL_ADDRESS>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Suite 500,
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* Boston, MA 02110-1335, USA.
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*/
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EOF
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cat <<-EOF
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/**
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* SECTION:element-$gstreplace
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*
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* The $replace element does FIXME stuff.
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*
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* <refsect2>
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* <title>Example launch line</title>
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* |[
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* gst-launch -v fakesrc ! $replace ! FIXME ! fakesink
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* ]|
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* FIXME Describe what the pipeline does.
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* </refsect2>
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*/
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EOF
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cat <<EOF
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gst.h>
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EOF
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grep -A 10000 '^% includes' $templatedir/gobject | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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grep -A 10000 '^% includes' $templatedir/$class | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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cat <<EOF
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#include "gstreplace.h"
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GST_DEBUG_CATEGORY_STATIC (gst_replace_debug_category);
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#define GST_CAT_DEFAULT gst_replace_debug_category
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/* prototypes */
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EOF
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grep -A 10000 '^% prototypes' $templatedir/gobject | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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grep -A 10000 '^% prototypes' $templatedir/$class | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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for each in $pads
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do
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grep -A 10000 '^% prototypes' $templatedir/$each | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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done
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cat <<EOF
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enum
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{
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PROP_0
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};
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/* pad templates */
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EOF
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for each in $pads
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do
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grep -A 10000 '^% pad-template' $templatedir/$each | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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done
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cat <<EOF
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/* class initialization */
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G_DEFINE_TYPE_WITH_CODE (GstReplace, gst_replace, GST_TYPE_BASE_REPLACE,
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GST_DEBUG_CATEGORY_INIT (gst_replace_debug_category, "replace", 0,
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"debug category for replace element"));
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static void
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gst_replace_class_init (GstReplaceClass * klass)
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{
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EOF
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grep -A 10000 '^% declare-class' $templatedir/gobject | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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grep -A 10000 '^% declare-class' $templatedir/$class | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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cat <<EOF
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/* Setting up pads and setting metadata should be moved to
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base_class_init if you intend to subclass this class. */
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EOF
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for each in $pads
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do
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grep -A 10000 '^% base-init' $templatedir/$each | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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done
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cat <<EOF
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gst_element_class_set_static_metadata (GST_ELEMENT_CLASS(klass),
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"FIXME Long name", "Generic", "FIXME Description",
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"$REAL_NAME <$EMAIL_ADDRESS>");
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EOF
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grep -A 10000 '^% set-methods' $templatedir/gobject | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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grep -A 10000 '^% set-methods' $templatedir/$class | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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cat <<EOF
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}
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static void
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gst_replace_init (GstReplace *replace)
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{
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EOF
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for each in $pads
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do
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grep -A 10000 '^% instance-init' $templatedir/$each | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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done
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cat <<EOF
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}
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EOF
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grep -A 10000 '^% methods' $templatedir/gobject | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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grep -A 10000 '^% methods' $templatedir/$class | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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for each in $pads
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do
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grep -A 10000 '^% methods' $templatedir/$each | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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done
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cat <<EOF
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static gboolean
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plugin_init (GstPlugin * plugin)
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{
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return gst_element_register (plugin, "replace", GST_RANK_NONE,
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GST_TYPE_REPLACE);
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}
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#ifndef VERSION
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#define VERSION "0.0.FIXME"
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#endif
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#ifndef PACKAGE
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#define PACKAGE "FIXME_package"
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#endif
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#ifndef PACKAGE_NAME
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#define PACKAGE_NAME "FIXME_package_name"
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#endif
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#ifndef GST_PACKAGE_ORIGIN
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#define GST_PACKAGE_ORIGIN "http://FIXME.org/"
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#endif
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GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
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GST_VERSION_MINOR,
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replace,
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"FIXME plugin description",
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plugin_init, VERSION, "LGPL", PACKAGE_NAME, GST_PACKAGE_ORIGIN)
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EOF
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}
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generate_header ()
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{
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cat <<-EOF
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/* GStreamer
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* Copyright (C) $(date +%Y) $REAL_NAME <$EMAIL_ADDRESS>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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EOF
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cat <<EOF
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#ifndef _GST_REPLACE_H_
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#define _GST_REPLACE_H_
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EOF
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grep -A 10000 '^% includes' $templatedir/gobject | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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grep -A 10000 '^% includes' $templatedir/$class | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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cat <<EOF
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G_BEGIN_DECLS
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#define GST_TYPE_REPLACE \
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(gst_replace_get_type())
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#define GST_REPLACE(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_REPLACE,GstReplace))
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#define GST_REPLACE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_REPLACE,GstReplaceClass))
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#define GST_IS_REPLACE(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_REPLACE))
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#define GST_IS_REPLACE_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_REPLACE))
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typedef struct _GstReplace GstReplace;
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typedef struct _GstReplaceClass GstReplaceClass;
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struct _GstReplace
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{
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GstBaseReplace base_replace;
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EOF
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for each in $pads
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do
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grep -A 10000 '^% instance-members' $templatedir/$each | tail -n +2|grep -m 1 -B 10000 '^%'|head -n -1
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done
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cat <<EOF
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};
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struct _GstReplaceClass
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{
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GstBaseReplaceClass base_replace_class;
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};
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GType gst_replace_get_type (void);
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G_END_DECLS
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#endif
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EOF
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}
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generate | sed \
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-e "s/GST_BASE_REPLACE/$GST_BASE_REPLACE/g" \
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-e "s/GST_TYPE_BASE_REPLACE/$GST_TYPE_BASE_REPLACE/g" \
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-e "s/GstBaseReplace/$GstBaseReplace/g" \
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-e "s/GST_IS_REPLACE/$GST_IS_REPLACE/g" \
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-e "s/GST_REPLACE/$GST_REPLACE/g" \
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-e "s/GST_TYPE_REPLACE/$GST_TYPE_REPLACE/g" \
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-e "s/GstReplace/$GstReplace/g" \
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-e "s/gst_replace/$gst_replace/g" \
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-e "s/gstreplace/$gstreplace/g" \
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-e "s/replace/$replace/g" >$gstreplace.c
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generate_header | sed \
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-e "s/GST_BASE_REPLACE/$GST_BASE_REPLACE/g" \
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-e "s/GST_TYPE_BASE_REPLACE/$GST_TYPE_BASE_REPLACE/g" \
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-e "s/GstBaseReplace/$GstBaseReplace/g" \
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-e "s/GST_IS_REPLACE/$GST_IS_REPLACE/g" \
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-e "s/GST_REPLACE/$GST_REPLACE/g" \
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-e "s/GST_TYPE_REPLACE/$GST_TYPE_REPLACE/g" \
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-e "s/GstReplace/$GstReplace/g" \
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-e "s/gst_replace/$gst_replace/g" \
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-e "s/gstreplace/$gstreplace/g" \
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-e "s/replace/$replace/g" >$gstreplace.h
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gst-indent $gstreplace.c
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echo pkg is $pkg
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gcc -Wall -fPIC $CPPFLAGS $(pkg-config --cflags gstreamer-1.0 $pkg) -c -o $gstreplace.o $gstreplace.c
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if test $? -ne 0; then
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exit 1
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fi
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gcc -shared -o $gstreplace.so $gstreplace.o $(pkg-config --libs gstreamer-1.0 $pkg)
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if test $? -ne 0; then
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exit 1
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fi
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