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gst-libs/gst/audio/Makefile.am: Add gstaudiofiltertemplate.c and building of gstaudiofilterexample.c from the template.

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Original commit message from CVS:
* gst-libs/gst/audio/Makefile.am:
Add gstaudiofiltertemplate.c and building of gstaudiofilterexample.c
from the template.
* gst-libs/gst/audio/gstaudiofilter.c:
* gst-libs/gst/audio/gstaudiofilter.h:
Add bytes_per_sample and size and n_samples calculation.
* gst-libs/gst/audio/gstaudiofilterexample.c:
Remove, now autogenerated.
* gst-libs/gst/audio/gstaudiofiltertemplate.c:
Moved from gstaudiofilterexample, object name changed, code added
so that it actually works.
* gst-libs/gst/audio/make_filter:
Script to build an audiofilter subclass from the template.
* gst/colorspace/Makefile.am:
* gst/colorspace/yuv2yuv.c:
Remove file, since it's GPL, and we don't use it.
This commit is contained in:
David Schleef 2004-01-16 00:55:29 +00:00
parent 65a306f052
commit 5dca8edfe9
7 changed files with 334 additions and 171 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
ChangeLog
View file

@ -1,3 +1,22 @@
2004-01-15 David Schleef <ds@schleef.org>
* gst-libs/gst/audio/Makefile.am:
Add gstaudiofiltertemplate.c and building of gstaudiofilterexample.c
from the template.
* gst-libs/gst/audio/gstaudiofilter.c:
* gst-libs/gst/audio/gstaudiofilter.h:
Add bytes_per_sample and size and n_samples calculation.
* gst-libs/gst/audio/gstaudiofilterexample.c:
Remove, now autogenerated.
* gst-libs/gst/audio/gstaudiofiltertemplate.c:
Moved from gstaudiofilterexample, object name changed, code added
so that it actually works.
* gst-libs/gst/audio/make_filter:
Script to build an audiofilter subclass from the template.
* gst/colorspace/Makefile.am:
* gst/colorspace/yuv2yuv.c:
Remove file, since it's GPL, and we don't use it.
2004-01-15 Julien MOUTTE <julien@moutte.net> 2004-01-15 Julien MOUTTE <julien@moutte.net>
* sys/ximage/ximagesink.c: (gst_ximagesink_chain): * sys/ximage/ximagesink.c: (gst_ximagesink_chain):

5
gst-libs/gst/audio/Makefile.am
View file

@ -2,6 +2,9 @@ librarydir = $(libdir)/gstreamer-@GST_MAJORMINOR@
library_LTLIBRARIES = libgstaudio.la libgstaudiofilter.la libgstaudiofilterexample.la library_LTLIBRARIES = libgstaudio.la libgstaudiofilter.la libgstaudiofilterexample.la
EXTRA_DIST = gstaudiofiltertemplate.c make_filter
CLEANFILES = gstaudiofilterexample.c
libgstaudio_la_SOURCES = audio.c audioclock.c libgstaudio_la_SOURCES = audio.c audioclock.c
libgstaudioincludedir = $(includedir)/gstreamer-@GST_MAJORMINOR@/gst/audio libgstaudioincludedir = $(includedir)/gstreamer-@GST_MAJORMINOR@/gst/audio
@ -19,3 +22,5 @@ libgstaudiofilterexample_la_SOURCES = gstaudiofilterexample.c
libgstaudiofilterexample_la_CFLAGS = $(GST_CFLAGS) libgstaudiofilterexample_la_CFLAGS = $(GST_CFLAGS)
libgstaudiofilterexample_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS) libgstaudiofilterexample_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
gstaudiofilterexample.c: $(srcdir)/make_filter $(srcdir)/gstaudiofiltertemplate.c
$(srcdir)/make_filter AudiofilterExample $(srcdir)/gstaudiofiltertemplate.c

6
gst-libs/gst/audio/gstaudiofilter.c
View file

@ -144,6 +144,9 @@ gst_audiofilter_link (GstPad *pad, const GstCaps *caps)
} }
ret &= gst_structure_get_int (structure, "rate", &audiofilter->rate); ret &= gst_structure_get_int (structure, "rate", &audiofilter->rate);
audiofilter->bytes_per_sample = (audiofilter->width/8) *
audiofilter->channels;
if (audiofilter_class->setup) (audiofilter_class->setup) (audiofilter); if (audiofilter_class->setup) (audiofilter_class->setup) (audiofilter);
return GST_PAD_LINK_OK; return GST_PAD_LINK_OK;
@ -204,6 +207,9 @@ gst_audiofilter_chain (GstPad *pad, GstData *data)
return; return;
} }
audiofilter->size = GST_BUFFER_SIZE (inbuf);
audiofilter->n_samples = audiofilter->size / audiofilter->bytes_per_sample;
if (gst_data_is_writable(data)) { if (gst_data_is_writable(data)) {
if (audiofilter_class->filter_inplace) { if (audiofilter_class->filter_inplace) {
(audiofilter_class->filter_inplace) (audiofilter, inbuf); (audiofilter_class->filter_inplace) (audiofilter, inbuf);

5
gst-libs/gst/audio/gstaudiofilter.h
View file

@ -56,13 +56,16 @@ struct _GstAudiofilter {
/* audio state */ /* audio state */
gboolean inited; gboolean inited;
gboolean passthru;
int rate; int rate;
int width; int width;
int channels; int channels;
int depth; int depth;
gboolean passthru;
int n_samples;
int size;
int bytes_per_sample;
}; };
struct _GstAudiofilterClass { struct _GstAudiofilterClass {

170
gst-libs/gst/audio/gstaudiofilterexample.c
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@ -1,170 +0,0 @@
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <2003> David Schleef <ds@schleef.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/audio/gstaudiofilter.h>
typedef struct _GstAudiofilterExample GstAudiofilterExample;
typedef struct _GstAudiofilterExampleClass GstAudiofilterExampleClass;
#define GST_TYPE_AUDIOFILTER_EXAMPLE \
(gst_audiofilter_example_get_type())
#define GST_AUDIOFILTER_EXAMPLE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIOFILTER_EXAMPLE,GstAudiofilterExample))
#define GST_AUDIOFILTER_EXAMPLE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIOFILTER_EXAMPLE,GstAudiofilterExampleClass))
#define GST_IS_AUDIOFILTER_EXAMPLE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIOFILTER_EXAMPLE))
#define GST_IS_AUDIOFILTER_EXAMPLE_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIOFILTER_EXAMPLE))
struct _GstAudiofilterExample {
GstAudiofilter audiofilter;
};
struct _GstAudiofilterExampleClass {
GstAudiofilterClass parent_class;
};
/* GstAudiofilterExample signals and args */
enum {
/* FILL ME */
LAST_SIGNAL
};
enum {
ARG_0,
ARG_METHOD,
/* FILL ME */
};
static void gst_audiofilter_example_base_init (gpointer g_class);
static void gst_audiofilter_example_class_init (gpointer g_class, gpointer class_data);
static void gst_audiofilter_example_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
static void gst_audiofilter_example_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
GType
gst_audiofilter_example_get_type (void)
{
static GType audiofilter_example_type = 0;
if (!audiofilter_example_type) {
static const GTypeInfo audiofilter_example_info = {
sizeof(GstAudiofilterExampleClass),
gst_audiofilter_example_base_init,
NULL,
gst_audiofilter_example_class_init,
NULL,
NULL,
sizeof(GstAudiofilterExample),
0,
NULL,
};
audiofilter_example_type = g_type_register_static(GST_TYPE_AUDIOFILTER,
"GstAudiofilterExample", &audiofilter_example_info, 0);
}
return audiofilter_example_type;
}
static void gst_audiofilter_example_base_init (gpointer g_class)
{
static GstElementDetails audiofilter_example_details = {
"Audio filter example",
"Filter/Effect/Audio",
"Filters audio",
"David Schleef <ds@schleef.org>"
};
GstAudiofilterExampleClass *klass = (GstAudiofilterExampleClass *) g_class;
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_set_details (element_class, &audiofilter_example_details);
}
static void gst_audiofilter_example_class_init (gpointer g_class, gpointer class_data)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstAudiofilterExampleClass *klass;
klass = (GstAudiofilterExampleClass *)g_class;
gobject_class = (GObjectClass*)klass;
gstelement_class = (GstElementClass*)klass;
gobject_class->set_property = gst_audiofilter_example_set_property;
gobject_class->get_property = gst_audiofilter_example_get_property;
}
static void
gst_audiofilter_example_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
GstAudiofilterExample *src;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail(GST_IS_AUDIOFILTER_EXAMPLE(object));
src = GST_AUDIOFILTER_EXAMPLE(object);
GST_DEBUG("gst_audiofilter_example_set_property");
switch (prop_id) {
default:
break;
}
}
static void
gst_audiofilter_example_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
GstAudiofilterExample *src;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail(GST_IS_AUDIOFILTER_EXAMPLE(object));
src = GST_AUDIOFILTER_EXAMPLE(object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
plugin_init (GstPlugin *plugin)
{
return TRUE;
}
GST_PLUGIN_DEFINE (
GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"gstaudiofilter_example",
"Audio filter example",
plugin_init,
VERSION,
"LGPL",
GST_PACKAGE,
GST_ORIGIN
)

265
gst-libs/gst/audio/gstaudiofiltertemplate.c Normal file
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@ -0,0 +1,265 @@
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <2003> David Schleef <ds@schleef.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* This file was (probably) generated from
* $Id$
* and
* MAKEFILTERVERSION
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/audio/audio.h>
#include <gst/audio/gstaudiofilter.h>
#include <string.h>
typedef struct _GstAudiofilterTemplate GstAudiofilterTemplate;
typedef struct _GstAudiofilterTemplateClass GstAudiofilterTemplateClass;
#define GST_TYPE_AUDIOFILTER_TEMPLATE \
(gst_audiofilter_template_get_type())
#define GST_AUDIOFILTER_TEMPLATE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIOFILTER_TEMPLATE,GstAudiofilterTemplate))
#define GST_AUDIOFILTER_TEMPLATE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIOFILTER_TEMPLATE,GstAudiofilterTemplateClass))
#define GST_IS_AUDIOFILTER_TEMPLATE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIOFILTER_TEMPLATE))
#define GST_IS_AUDIOFILTER_TEMPLATE_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIOFILTER_TEMPLATE))
struct _GstAudiofilterTemplate {
GstAudiofilter audiofilter;
};
struct _GstAudiofilterTemplateClass {
GstAudiofilterClass parent_class;
};
enum {
/* FILL ME */
LAST_SIGNAL
};
enum {
ARG_0,
/* FILL ME */
};
static void gst_audiofilter_template_base_init (gpointer g_class);
static void gst_audiofilter_template_class_init (gpointer g_class, gpointer class_data);
static void gst_audiofilter_template_init (GTypeInstance *instance, gpointer g_class);
static void gst_audiofilter_template_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
static void gst_audiofilter_template_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
static void gst_audiofilter_template_setup (GstAudiofilter *audiofilter);
static void gst_audiofilter_template_filter (GstAudiofilter *audiofilter, GstBuffer *outbuf, GstBuffer *inbuf);
static void gst_audiofilter_template_filter_inplace (GstAudiofilter *audiofilter, GstBuffer *buf);
GType
gst_audiofilter_template_get_type (void)
{
static GType audiofilter_template_type = 0;
if (!audiofilter_template_type) {
static const GTypeInfo audiofilter_template_info = {
sizeof(GstAudiofilterTemplateClass),
gst_audiofilter_template_base_init,
NULL,
gst_audiofilter_template_class_init,
NULL,
gst_audiofilter_template_init,
sizeof(GstAudiofilterTemplate),
0,
NULL,
};
audiofilter_template_type = g_type_register_static(GST_TYPE_AUDIOFILTER,
"GstAudiofilterTemplate", &audiofilter_template_info, 0);
}
return audiofilter_template_type;
}
static void gst_audiofilter_template_base_init (gpointer g_class)
{
static GstElementDetails audiofilter_template_details = {
"Audio filter template",
"Filter/Effect/Audio",
"Filters audio",
"David Schleef <ds@schleef.org>"
};
GstAudiofilterTemplateClass *klass = (GstAudiofilterTemplateClass *) g_class;
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_set_details (element_class, &audiofilter_template_details);
gst_audiofilter_class_add_pad_templates (GST_AUDIOFILTER_CLASS (g_class),
gst_caps_from_string (GST_AUDIO_INT_STANDARD_PAD_TEMPLATE_CAPS));
}
static void
gst_audiofilter_template_class_init (gpointer g_class, gpointer class_data)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstAudiofilterTemplateClass *klass;
GstAudiofilterClass *audiofilter_class;
klass = (GstAudiofilterTemplateClass *)g_class;
gobject_class = (GObjectClass*)klass;
gstelement_class = (GstElementClass*)klass;
audiofilter_class = (GstAudiofilterClass *)g_class;
#if 0
g_object_class_install_property(gobject_class, ARG_METHOD,
g_param_spec_enum("method","method","method",
GST_TYPE_AUDIOTEMPLATE_METHOD, GST_AUDIOTEMPLATE_METHOD_1,
G_PARAM_READWRITE));
#endif
gobject_class->set_property = gst_audiofilter_template_set_property;
gobject_class->get_property = gst_audiofilter_template_get_property;
audiofilter_class->setup = gst_audiofilter_template_setup;
audiofilter_class->filter = gst_audiofilter_template_filter;
audiofilter_class->filter_inplace = gst_audiofilter_template_filter_inplace;
audiofilter_class->filter = NULL;
}
static void
gst_audiofilter_template_init (GTypeInstance *instance, gpointer g_class)
{
//GstAudiofilterTemplate *audiofilter_template = GST_AUDIOFILTER_TEMPLATE (instance);
//GstAudiofilter *audiofilter = GST_AUDIOFILTER (instance);
GST_DEBUG ("gst_audiofilter_template_init");
/* do stuff */
}
static void
gst_audiofilter_template_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
GstAudiofilterTemplate *src;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail(GST_IS_AUDIOFILTER_TEMPLATE(object));
src = GST_AUDIOFILTER_TEMPLATE(object);
GST_DEBUG("gst_audiofilter_template_set_property");
switch (prop_id) {
default:
break;
}
}
static void
gst_audiofilter_template_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
GstAudiofilterTemplate *src;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail(GST_IS_AUDIOFILTER_TEMPLATE(object));
src = GST_AUDIOFILTER_TEMPLATE(object);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
plugin_init (GstPlugin *plugin)
{
if (!gst_library_load ("gstaudiofilter"))
return FALSE;
return gst_element_register (plugin, "audiofiltertemplate", GST_RANK_NONE,
GST_TYPE_AUDIOFILTER_TEMPLATE);
}
GST_PLUGIN_DEFINE (
GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"gstaudiofilter_template",
"Audio filter template",
plugin_init,
VERSION,
"LGPL",
GST_PACKAGE,
GST_ORIGIN
)
static void
gst_audiofilter_template_setup (GstAudiofilter *audiofilter)
{
GstAudiofilterTemplate *audiofilter_template;
g_return_if_fail (GST_IS_AUDIOFILTER_TEMPLATE (audiofilter));
audiofilter_template = GST_AUDIOFILTER_TEMPLATE (audiofilter);
/* if any setup needs to be done, do it here */
}
/* You may choose to implement either a copying filter or an
* in-place filter (or both). Implementing only one will give
* full functionality, however, implementing both will cause
* audiofilter to use the optimal function in every situation,
* with a minimum of memory copies. */
static void
gst_audiofilter_template_filter (GstAudiofilter *audiofilter,
GstBuffer *outbuf, GstBuffer *inbuf)
{
GstAudiofilterTemplate *audiofilter_template;
g_return_if_fail (GST_IS_AUDIOFILTER_TEMPLATE (audiofilter));
audiofilter_template = GST_AUDIOFILTER_TEMPLATE (audiofilter);
/* do something interesting here. This simply copies the source
* to the destination. */
memcpy (GST_BUFFER_DATA (outbuf), GST_BUFFER_DATA (inbuf),
audiofilter->size);
}
static void
gst_audiofilter_template_filter_inplace (GstAudiofilter *audiofilter,
GstBuffer *buf)
{
GstAudiofilterTemplate *audiofilter_template;
g_return_if_fail (GST_IS_AUDIOFILTER_TEMPLATE (audiofilter));
audiofilter_template = GST_AUDIOFILTER_TEMPLATE (audiofilter);
/* do something interesting here. This simply copies the source
* to the destination. */
}

35
gst-libs/gst/audio/make_filter Executable file
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@ -0,0 +1,35 @@
#!/bin/sh
Template=$1;
srcfile=$2;
if test x"$1" = x ; then
echo "$0 Objectname [srcfile]\n";
echo " creates gstobjectname.{c,h} implementing GstObjectname,\n";
echo " subclassing GstAudiofilter.\n";
exit 1;
fi
if test x"$2" = x ; then
srcfile="gstaudiofiltertemplate.c"
fi
id=$(echo '$Id$' | sed \
-e 's/\$I[d]: \([^$]*\)\$/\1/g' \
)
echo $id
TEMPLATE=$(echo $Template | tr a-z A-Z)
template=$(echo $Template | tr A-Z a-z)
# remember to break up the Id: in the line below
sed \
-e 's/gstaudiofiltertemplate\.c/SOURCEFILE/g' \
-e "s/AudiofilterTemplate/$Template/g" \
-e "s/audiofiltertemplate/$template/g" \
-e "s/VIDEOFILTERTEMPLATE/$TEMPLATE/g" \
-e 's/\$I[d]: \([^$]*\)\$/\1/g' \
-e 's/SOURCEFILE/gstaudiofiltertemplate\.c/g' \
-e "s%MAKEFILTERVERSION%$id%g" \
$srcfile >gst$template.c.tmp && mv gst$template.c.tmp gst$template.c