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gst-libs/gst/audio/: Oops, forgot to commit fixed-up example.

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Original commit message from CVS:
* gst-libs/gst/audio/Makefile.am:
* gst-libs/gst/audio/gstaudiofiltertemplate.c:
(gst_audio_filter_template_base_init),
(gst_audio_filter_template_class_init),
(gst_audio_filter_template_init),
(gst_audio_filter_template_set_property),
(gst_audio_filter_template_get_property),
(gst_audio_filter_template_setup),
(gst_audio_filter_template_filter),
(gst_audio_filter_template_filter_inplace), (plugin_init):
Oops, forgot to commit fixed-up example.
This commit is contained in:
Tim-Philipp Müller 2007-02-03 23:28:45 +00:00
parent b63fff63d4
commit 2594880e87
3 changed files with 96 additions and 85 deletions
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14
ChangeLog
View file

@ -1,3 +1,17 @@
2007-02-03 Tim-Philipp Müller <tim at centricular dot net>
* gst-libs/gst/audio/Makefile.am:
* gst-libs/gst/audio/gstaudiofiltertemplate.c:
(gst_audio_filter_template_base_init),
(gst_audio_filter_template_class_init),
(gst_audio_filter_template_init),
(gst_audio_filter_template_set_property),
(gst_audio_filter_template_get_property),
(gst_audio_filter_template_setup),
(gst_audio_filter_template_filter),
(gst_audio_filter_template_filter_inplace), (plugin_init):
Oops, forgot to commit fixed-up example.
2007-02-03 Tim-Philipp Müller <tim at centricular dot net>
* docs/libs/gst-plugins-base-libs-sections.txt:

2
gst-libs/gst/audio/Makefile.am
View file

@ -54,7 +54,7 @@ libgstaudiofilterexample_la_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) $(GST_CFLAGS)
libgstaudiofilterexample_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
gstaudiofilterexample.c: $(srcdir)/make_filter $(srcdir)/gstaudiofiltertemplate.c
$(srcdir)/make_filter AudiofilterExample $(srcdir)/gstaudiofiltertemplate.c
$(srcdir)/make_filter AudioFilterExample $(srcdir)/gstaudiofiltertemplate.c
noinst_PROGRAMS = testchannels
testchannels_SOURCES = testchannels.c

165
gst-libs/gst/audio/gstaudiofiltertemplate.c
View file

@ -34,6 +34,9 @@
#include <gst/audio/gstaudiofilter.h>
#include <string.h>
GST_DEBUG_CATEGORY_STATIC (audio_filter_template_debug);
#define GST_CAT_DEFAULT audio_filter_template_debug
static const GstElementDetails audio_filter_template_details =
GST_ELEMENT_DETAILS ("Audio filter template",
"Filter/Effect/Audio",
@ -57,13 +60,11 @@ typedef struct _GstAudioFilterTemplateClass GstAudioFilterTemplateClass;
struct _GstAudioFilterTemplate
{
GstAudioFilter audiofilter;
};
struct _GstAudioFilterTemplateClass
{
GstAudioFilterClass parent_class;
};
@ -79,71 +80,50 @@ enum
/* FILL ME */
};
static void gst_audio_filter_template_base_init (gpointer g_class);
static void gst_audio_filter_template_class_init (gpointer g_class,
gpointer class_data);
static void gst_audio_filter_template_init (GTypeInstance * instance,
gpointer g_class);
GST_BOILERPLATE (GstAudioFilterTemplate, gst_audio_filter_template,
GstAudioFilter, GST_TYPE_AUDIO_FILTER);
static void gst_audio_filter_template_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec);
static void gst_audio_filter_template_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
static void gst_audio_filter_template_setup (GstAudioFilter * audiofilter);
static void gst_audio_filter_template_filter (GstAudioFilter * audiofilter,
static gboolean gst_audio_filter_template_setup (GstAudioFilter * filter,
GstRingBufferSpec * spec);
static GstFlowReturn gst_audio_filter_template_filter (GstBaseTransform * bt,
GstBuffer * outbuf, GstBuffer * inbuf);
static void gst_audio_filter_template_filter_inplace (GstAudioFilter *
audiofilter, GstBuffer * buf);
static GstFlowReturn
gst_audio_filter_template_filter_inplace (GstBaseTransform * base_transform,
GstBuffer * buf);
GType
gst_audio_filter_template_get_type (void)
{
static GType audio_filter_template_type = 0;
if (!audio_filter_template_type) {
static const GTypeInfo audio_filter_template_info = {
sizeof (GstAudioFilterTemplateClass),
gst_audio_filter_template_base_init,
NULL,
gst_audio_filter_template_class_init,
NULL,
(gpointer) gst_audio_filter_template_init,
sizeof (GstAudioFilterTemplate),
0,
NULL,
};
audio_filter_template_type = g_type_register_static (GST_TYPE_AUDIO_FILTER,
"GstAudioFilterTemplate", &audio_filter_template_info, 0);
}
return audio_filter_template_type;
}
#define ALLOWED_CAPS_STRING \
GST_AUDIO_INT_STANDARD_PAD_TEMPLATE_CAPS
static void
gst_audio_filter_template_base_init (gpointer g_class)
{
GstAudioFilterTemplateClass *klass = (GstAudioFilterTemplateClass *) g_class;
GstAudioFilterClass *audiofilter_class = GST_AUDIO_FILTER_CLASS (g_class);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstCaps *caps;
gst_element_class_set_details (element_class, &audio_filter_template_details);
gst_audio_filter_class_add_pad_templates (GST_AUDIO_FILTER_CLASS (g_class),
gst_caps_from_string (GST_AUDIO_INT_STANDARD_PAD_TEMPLATE_CAPS));
caps = gst_caps_from_string (ALLOWED_CAPS_STRING);
gst_audio_filter_class_add_pad_templates (audiofilter_class, caps);
gst_caps_unref (caps);
}
static void
gst_audio_filter_template_class_init (gpointer g_class, gpointer class_data)
gst_audio_filter_template_class_init (GstAudioFilterTemplateClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstAudioFilterTemplateClass *klass;
GstBaseTransformClass *btrans_class;
GstAudioFilterClass *audio_filter_class;
klass = (GstAudioFilterTemplateClass *) g_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
audio_filter_class = (GstAudioFilterClass *) g_class;
btrans_class = (GstBaseTransformClass *) klass;
audio_filter_class = (GstAudioFilterClass *) klass;
#if 0
g_object_class_install_property (gobject_class, ARG_METHOD,
@ -155,78 +135,73 @@ gst_audio_filter_template_class_init (gpointer g_class, gpointer class_data)
gobject_class->set_property = gst_audio_filter_template_set_property;
gobject_class->get_property = gst_audio_filter_template_get_property;
/* this function will be called whenever the format changes */
audio_filter_class->setup = gst_audio_filter_template_setup;
audio_filter_class->filter = gst_audio_filter_template_filter;
audio_filter_class->filter_inplace = gst_audio_filter_template_filter_inplace;
audio_filter_class->filter = NULL;
/* here you set up functions to process data (either in place, or from
* one input buffer to another output buffer); only one is required */
btrans_class->transform = gst_audio_filter_template_filter;
btrans_class->transform_ip = gst_audio_filter_template_filter_inplace;
}
static void
gst_audio_filter_template_init (GTypeInstance * instance, gpointer g_class)
gst_audio_filter_template_init (GstAudioFilterTemplate * audio_filter_template,
GstAudioFilterTemplateClass * g_class)
{
//GstAudioFilterTemplate *audio_filter_template = GST_AUDIO_FILTER_TEMPLATE (instance);
//GstAudioFilter *audiofilter = GST_AUDIO_FILTER (instance);
GST_DEBUG ("gst_audio_filter_template_init");
/* do stuff */
GST_DEBUG ("init");
/* do stuff if you need to */
}
static void
gst_audio_filter_template_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstAudioFilterTemplate *src;
GstAudioFilterTemplate *filter;
g_return_if_fail (GST_IS_AUDIO_FILTER_TEMPLATE (object));
src = GST_AUDIO_FILTER_TEMPLATE (object);
filter = GST_AUDIO_FILTER_TEMPLATE (object);
GST_DEBUG ("gst_audio_filter_template_set_property");
GST_DEBUG ("set property %u", prop_id);
GST_OBJECT_LOCK (filter);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
GST_OBJECT_UNLOCK (filter);
}
static void
gst_audio_filter_template_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstAudioFilterTemplate *src;
GstAudioFilterTemplate *filter;
g_return_if_fail (GST_IS_AUDIO_FILTER_TEMPLATE (object));
src = GST_AUDIO_FILTER_TEMPLATE (object);
filter = GST_AUDIO_FILTER_TEMPLATE (object);
GST_DEBUG ("get property %u", prop_id);
GST_OBJECT_LOCK (filter);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
GST_OBJECT_UNLOCK (filter);
}
static gboolean
plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "audiofiltertemplate", GST_RANK_NONE,
GST_TYPE_AUDIO_FILTER_TEMPLATE);
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"gstaudio_filter_template",
"Audio filter template",
plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
static void gst_audio_filter_template_setup (GstAudioFilter * audiofilter)
gst_audio_filter_template_setup (GstAudioFilter * filter,
GstRingBufferSpec * spec)
{
GstAudioFilterTemplate *audio_filter_template;
g_return_if_fail (GST_IS_AUDIO_FILTER_TEMPLATE (audiofilter));
audio_filter_template = GST_AUDIO_FILTER_TEMPLATE (audiofilter);
audio_filter_template = GST_AUDIO_FILTER_TEMPLATE (filter);
/* if any setup needs to be done, do it here */
return TRUE; /* it's all good */
}
/* You may choose to implement either a copying filter or an
@ -235,31 +210,53 @@ GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
* audiofilter to use the optimal function in every situation,
* with a minimum of memory copies. */
static void
gst_audio_filter_template_filter (GstAudioFilter * audiofilter,
GstBuffer * outbuf, GstBuffer * inbuf)
static GstFlowReturn
gst_audio_filter_template_filter (GstBaseTransform * base_transform,
GstBuffer * inbuf, GstBuffer * outbuf)
{
GstAudioFilterTemplate *audio_filter_template;
GstAudioFilter *audiofilter;
g_return_if_fail (GST_IS_AUDIO_FILTER_TEMPLATE (audiofilter));
audio_filter_template = GST_AUDIO_FILTER_TEMPLATE (audiofilter);
audiofilter = GST_AUDIO_FILTER (base_transform);
audio_filter_template = GST_AUDIO_FILTER_TEMPLATE (base_transform);
/* do something interesting here. This simply copies the source
* to the destination. */
memcpy (GST_BUFFER_DATA (outbuf), GST_BUFFER_DATA (inbuf), audiofilter->size);
memcpy (GST_BUFFER_DATA (outbuf), GST_BUFFER_DATA (inbuf),
GST_BUFFER_SIZE (inbuf));
return GST_FLOW_OK;
}
static void
gst_audio_filter_template_filter_inplace (GstAudioFilter * audiofilter,
static GstFlowReturn
gst_audio_filter_template_filter_inplace (GstBaseTransform * base_transform,
GstBuffer * buf)
{
GstAudioFilterTemplate *audio_filter_template;
GstAudioFilter *audiofilter;
g_return_if_fail (GST_IS_AUDIO_FILTER_TEMPLATE (audiofilter));
audio_filter_template = GST_AUDIO_FILTER_TEMPLATE (audiofilter);
audiofilter = GST_AUDIO_FILTER (base_transform);
audio_filter_template = GST_AUDIO_FILTER_TEMPLATE (base_transform);
/* do something interesting here. This simply copies the source
* to the destination. */
return GST_FLOW_OK;
}
static gboolean
plugin_init (GstPlugin * plugin)
{
GST_DEBUG_CATEGORY_INIT (audio_filter_template_debug, "audiofiltertemplate",
0, "audiofiltertemplate");
return gst_element_register (plugin, "audiofiltertemplate", GST_RANK_NONE,
GST_TYPE_AUDIO_FILTER_TEMPLATE);
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"gstaudio_filter_template",
"Audio filter template",
plugin_init, VERSION, "LGPL", GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);