*/
/**
- * SECTION:element-audiovoice
+ * SECTION:element-audiokaraoke
* @short_description: Voice removal element
*
* <refsect2>
- * Remove the voice from audio by removing the center channel.
+ * Remove the voice from audio by filtering the center channel.
* This plugin is useful for karaoke applications.
* <title>Example launch line</title>
* <para>
* <programlisting>
- * gst-launch filesrc location="song.ogg" ! oggdemux ! vorbisdec ! audiovoice ! audioconvert ! alsasink
+ * gst-launch filesrc location=song.ogg ! oggdemux ! vorbisdec ! audiokaraoke ! audioconvert ! alsasink
* </programlisting>
* </para>
* </refsect2>
#include <gst/audio/gstaudiofilter.h>
#include <gst/controller/gstcontroller.h>
-#include "audiovoice.h"
+#include "audiokaraoke.h"
-#define GST_CAT_DEFAULT gst_audio_voice_debug
+#define GST_CAT_DEFAULT gst_audio_karaoke_debug
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
static const GstElementDetails element_details =
-GST_ELEMENT_DETAILS ("AudioVoice",
+GST_ELEMENT_DETAILS ("AudioKaraoke",
"Filter/Effect/Audio",
"Removes voice from sound",
"Wim Taymans <wim.taymans@gmail.com>");
" channels=(int)[1,MAX]"
#define DEBUG_INIT(bla) \
- GST_DEBUG_CATEGORY_INIT (gst_audio_voice_debug, "audiovoice", 0, "audiovoice element");
+ GST_DEBUG_CATEGORY_INIT (gst_audio_karaoke_debug, "audiokaraoke", 0, "audiokaraoke element");
-GST_BOILERPLATE_FULL (GstAudioVoice, gst_audio_voice, GstAudioFilter,
+GST_BOILERPLATE_FULL (GstAudioKaraoke, gst_audio_karaoke, GstAudioFilter,
GST_TYPE_AUDIO_FILTER, DEBUG_INIT);
-static void gst_audio_voice_set_property (GObject * object, guint prop_id,
+static void gst_audio_karaoke_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
-static void gst_audio_voice_get_property (GObject * object, guint prop_id,
+static void gst_audio_karaoke_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
-static gboolean gst_audio_voice_setup (GstAudioFilter * filter,
+static gboolean gst_audio_karaoke_setup (GstAudioFilter * filter,
GstRingBufferSpec * format);
-static GstFlowReturn gst_audio_voice_transform_ip (GstBaseTransform * base,
+static GstFlowReturn gst_audio_karaoke_transform_ip (GstBaseTransform * base,
GstBuffer * buf);
-static void gst_audio_voice_transform_int (GstAudioVoice * filter,
+static void gst_audio_karaoke_transform_int (GstAudioKaraoke * filter,
gint16 * data, guint num_samples);
-static void gst_audio_voice_transform_float (GstAudioVoice * filter,
+static void gst_audio_karaoke_transform_float (GstAudioKaraoke * filter,
gfloat * data, guint num_samples);
/* GObject vmethod implementations */
static void
-gst_audio_voice_base_init (gpointer klass)
+gst_audio_karaoke_base_init (gpointer klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstCaps *caps;
}
static void
-gst_audio_voice_class_init (GstAudioVoiceClass * klass)
+gst_audio_karaoke_class_init (GstAudioKaraokeClass * klass)
{
GObjectClass *gobject_class;
gobject_class = (GObjectClass *) klass;
- gobject_class->set_property = gst_audio_voice_set_property;
- gobject_class->get_property = gst_audio_voice_get_property;
+ gobject_class->set_property = gst_audio_karaoke_set_property;
+ gobject_class->get_property = gst_audio_karaoke_get_property;
g_object_class_install_property (gobject_class, PROP_LEVEL,
g_param_spec_float ("level", "Level",
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
GST_AUDIO_FILTER_CLASS (klass)->setup =
- GST_DEBUG_FUNCPTR (gst_audio_voice_setup);
+ GST_DEBUG_FUNCPTR (gst_audio_karaoke_setup);
GST_BASE_TRANSFORM_CLASS (klass)->transform_ip =
- GST_DEBUG_FUNCPTR (gst_audio_voice_transform_ip);
+ GST_DEBUG_FUNCPTR (gst_audio_karaoke_transform_ip);
}
static void
-gst_audio_voice_init (GstAudioVoice * filter, GstAudioVoiceClass * klass)
+gst_audio_karaoke_init (GstAudioKaraoke * filter, GstAudioKaraokeClass * klass)
{
gst_base_transform_set_in_place (GST_BASE_TRANSFORM (filter), TRUE);
gst_base_transform_set_gap_aware (GST_BASE_TRANSFORM (filter), TRUE);
}
static void
-update_filter (GstAudioVoice * filter, gint rate)
+update_filter (GstAudioKaraoke * filter, gint rate)
{
gfloat A, B, C;
}
static void
-gst_audio_voice_set_property (GObject * object, guint prop_id,
+gst_audio_karaoke_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
- GstAudioVoice *filter;
+ GstAudioKaraoke *filter;
- filter = GST_AUDIO_VOICE (object);
+ filter = GST_AUDIO_KARAOKE (object);
switch (prop_id) {
case PROP_LEVEL:
}
static void
-gst_audio_voice_get_property (GObject * object, guint prop_id,
+gst_audio_karaoke_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
- GstAudioVoice *filter;
+ GstAudioKaraoke *filter;
- filter = GST_AUDIO_VOICE (object);
+ filter = GST_AUDIO_KARAOKE (object);
switch (prop_id) {
case PROP_LEVEL:
/* GstAudioFilter vmethod implementations */
static gboolean
-gst_audio_voice_setup (GstAudioFilter * base, GstRingBufferSpec * format)
+gst_audio_karaoke_setup (GstAudioFilter * base, GstRingBufferSpec * format)
{
- GstAudioVoice *filter = GST_AUDIO_VOICE (base);
+ GstAudioKaraoke *filter = GST_AUDIO_KARAOKE (base);
gboolean ret = TRUE;
filter->channels = format->channels;
filter->rate = format->rate;
if (format->type == GST_BUFTYPE_FLOAT && format->width == 32)
- filter->process = (GstAudioVoiceProcessFunc)
- gst_audio_voice_transform_float;
+ filter->process = (GstAudioKaraokeProcessFunc)
+ gst_audio_karaoke_transform_float;
else if (format->type == GST_BUFTYPE_LINEAR && format->width == 16)
- filter->process = (GstAudioVoiceProcessFunc)
- gst_audio_voice_transform_int;
+ filter->process = (GstAudioKaraokeProcessFunc)
+ gst_audio_karaoke_transform_int;
else
ret = FALSE;
}
static void
-gst_audio_voice_transform_int (GstAudioVoice * filter,
+gst_audio_karaoke_transform_int (GstAudioKaraoke * filter,
gint16 * data, guint num_samples)
{
gint i, l, r, o, x;
}
static void
-gst_audio_voice_transform_float (GstAudioVoice * filter,
+gst_audio_karaoke_transform_float (GstAudioKaraoke * filter,
gfloat * data, guint num_samples)
{
gint i;
/* GstBaseTransform vmethod implementations */
static GstFlowReturn
-gst_audio_voice_transform_ip (GstBaseTransform * base, GstBuffer * buf)
+gst_audio_karaoke_transform_ip (GstBaseTransform * base, GstBuffer * buf)
{
- GstAudioVoice *filter = GST_AUDIO_VOICE (base);
+ GstAudioKaraoke *filter = GST_AUDIO_KARAOKE (base);
guint num_samples =
GST_BUFFER_SIZE (buf) / (GST_AUDIO_FILTER (filter)->format.width / 8);
* Boston, MA 02111-1307, USA.
*/
-#ifndef __GST_AUDIO_VOICE_H__
-#define __GST_AUDIO_VOICE_H__
+#ifndef __GST_AUDIO_KARAOKE_H__
+#define __GST_AUDIO_KARAOKE_H__
#include <gst/gst.h>
#include <gst/base/gstbasetransform.h>
#include <gst/audio/gstaudiofilter.h>
G_BEGIN_DECLS
-#define GST_TYPE_AUDIO_VOICE (gst_audio_voice_get_type())
-#define GST_AUDIO_VOICE(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_VOICE,GstAudioVoice))
-#define GST_IS_AUDIO_VOICE(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_VOICE))
-#define GST_AUDIO_VOICE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_AUDIO_VOICE,GstAudioVoiceClass))
-#define GST_IS_AUDIO_VOICE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_AUDIO_VOICE))
-#define GST_AUDIO_VOICE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_AUDIO_VOICE,GstAudioVoiceClass))
-typedef struct _GstAudioVoice GstAudioVoice;
-typedef struct _GstAudioVoiceClass GstAudioVoiceClass;
+#define GST_TYPE_AUDIO_KARAOKE (gst_audio_karaoke_get_type())
+#define GST_AUDIO_KARAOKE(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_KARAOKE,GstAudioKaraoke))
+#define GST_IS_AUDIO_KARAOKE(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_KARAOKE))
+#define GST_AUDIO_KARAOKE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_AUDIO_KARAOKE,GstAudioKaraokeClass))
+#define GST_IS_AUDIO_KARAOKE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_AUDIO_KARAOKE))
+#define GST_AUDIO_KARAOKE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_AUDIO_KARAOKE,GstAudioKaraokeClass))
+typedef struct _GstAudioKaraoke GstAudioKaraoke;
+typedef struct _GstAudioKaraokeClass GstAudioKaraokeClass;
-typedef void (*GstAudioVoiceProcessFunc) (GstAudioVoice *, guint8 *, guint);
+typedef void (*GstAudioKaraokeProcessFunc) (GstAudioKaraoke *, guint8 *, guint);
-struct _GstAudioVoice
+struct _GstAudioKaraoke
{
GstAudioFilter audiofilter;
gfloat y1, y2;
/* < private > */
- GstAudioVoiceProcessFunc process;
+ GstAudioKaraokeProcessFunc process;
};
-struct _GstAudioVoiceClass
+struct _GstAudioKaraokeClass
{
GstAudioFilterClass parent;
};
-GType gst_audio_voice_get_type (void);
+GType gst_audio_karaoke_get_type (void);
G_END_DECLS
-#endif /* __GST_AUDIO_VOICE_H__ */
+#endif /* __GST_AUDIO_KARAOKE_H__ */
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