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stereo: Port to GStreamer 1.0 API

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This commit is contained in:
Olivier Crête 2013-12-06 17:58:13 -05:00
parent 7d12db0ccb
commit d914cb9298
1 changed files with 26 additions and 42 deletions
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68
gst/audiofx/gststereo.c
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@ -43,16 +43,12 @@
#include <gst/base/gstbasetransform.h> #include <gst/base/gstbasetransform.h>
#include <gst/audio/audio.h> #include <gst/audio/audio.h>
#include <gst/audio/gstaudiofilter.h> #include <gst/audio/gstaudiofilter.h>
#include <gst/controller/gstcontroller.h>
#define ALLOWED_CAPS \ #define ALLOWED_CAPS \
"audio/x-raw-int," \ "audio/x-raw," \
" depth = (int) 16, " \ " format = "GST_AUDIO_NE (S16) "," \
" width = (int) 16, " \ " rate = (int) [ 1, MAX ]," \
" endianness = (int) BYTE_ORDER," \ " channels = (int) 2"
" rate = (int) [ 1, MAX ]," \
" channels = (int) 2, " \
" signed = (boolean) TRUE"
/* Stereo signals and args */ /* Stereo signals and args */
enum enum
@ -76,14 +72,15 @@ static void gst_stereo_get_property (GObject * object, guint prop_id,
static GstFlowReturn gst_stereo_transform_ip (GstBaseTransform * base, static GstFlowReturn gst_stereo_transform_ip (GstBaseTransform * base,
GstBuffer * outbuf); GstBuffer * outbuf);
/*static guint gst_stereo_signals[LAST_SIGNAL] = { 0 }; */ G_DEFINE_TYPE (GstStereo, gst_stereo, GST_TYPE_AUDIO_FILTER);
GST_BOILERPLATE (GstStereo, gst_stereo, GstAudioFilter, GST_TYPE_AUDIO_FILTER);
static void static void
gst_stereo_base_init (gpointer g_class) gst_stereo_class_init (GstStereoClass * klass)
{ {
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
GstBaseTransformClass *trans_class = GST_BASE_TRANSFORM_CLASS (klass);
GstAudioFilterClass *audiofilter_class = GST_AUDIO_FILTER_CLASS (klass);
GstCaps *caps; GstCaps *caps;
gst_element_class_set_static_metadata (element_class, "Stereo effect", gst_element_class_set_static_metadata (element_class, "Stereo effect",
@ -92,24 +89,11 @@ gst_stereo_base_init (gpointer g_class)
"Erik Walthinsen <omega@cse.ogi.edu>"); "Erik Walthinsen <omega@cse.ogi.edu>");
caps = gst_caps_from_string (ALLOWED_CAPS); caps = gst_caps_from_string (ALLOWED_CAPS);
gst_audio_filter_class_add_pad_templates (GST_AUDIO_FILTER_CLASS (g_class), gst_audio_filter_class_add_pad_templates (audiofilter_class, caps);
caps);
gst_caps_unref (caps); gst_caps_unref (caps);
}
static void gobject_class->set_property = gst_stereo_set_property;
gst_stereo_class_init (GstStereoClass * klass) gobject_class->get_property = gst_stereo_get_property;
{
GObjectClass *gobject_class;
GstBaseTransformClass *trans_class;
gobject_class = (GObjectClass *) klass;
trans_class = (GstBaseTransformClass *) klass;
parent_class = g_type_class_peek_parent (klass);
gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_stereo_set_property);
gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_stereo_get_property);
g_object_class_install_property (gobject_class, ARG_ACTIVE, g_object_class_install_property (gobject_class, ARG_ACTIVE,
g_param_spec_boolean ("active", "active", "active", g_param_spec_boolean ("active", "active", "active",
@ -125,7 +109,7 @@ gst_stereo_class_init (GstStereoClass * klass)
} }
static void static void
gst_stereo_init (GstStereo * stereo, GstStereoClass * klass) gst_stereo_init (GstStereo * stereo)
{ {
stereo->active = TRUE; stereo->active = TRUE;
stereo->stereo = 0.1; stereo->stereo = 0.1;
@ -135,14 +119,18 @@ static GstFlowReturn
gst_stereo_transform_ip (GstBaseTransform * base, GstBuffer * outbuf) gst_stereo_transform_ip (GstBaseTransform * base, GstBuffer * outbuf)
{ {
GstStereo *stereo = GST_STEREO (base); GstStereo *stereo = GST_STEREO (base);
gint16 *data = (gint16 *) GST_BUFFER_DATA (outbuf); gint samples;
gint samples = GST_BUFFER_SIZE (outbuf) / 2;
gint i; gint i;
gdouble avg, ldiff, rdiff, tmp; gdouble avg, ldiff, rdiff, tmp;
gdouble mul = stereo->stereo; gdouble mul = stereo->stereo;
gint16 *data;
GstMapInfo info;
if (!gst_buffer_is_writable (outbuf)) if (!gst_buffer_map (outbuf, &info, GST_MAP_READWRITE))
return GST_FLOW_OK; return GST_FLOW_ERROR;
data = (gint16 *) info.data;
samples = info.size / 2;
if (GST_CLOCK_TIME_IS_VALID (GST_BUFFER_TIMESTAMP (outbuf))) if (GST_CLOCK_TIME_IS_VALID (GST_BUFFER_TIMESTAMP (outbuf)))
gst_object_sync_values (GST_OBJECT (stereo), GST_BUFFER_TIMESTAMP (outbuf)); gst_object_sync_values (GST_OBJECT (stereo), GST_BUFFER_TIMESTAMP (outbuf));
@ -169,6 +157,8 @@ gst_stereo_transform_ip (GstBaseTransform * base, GstBuffer * outbuf)
} }
} }
gst_buffer_unmap (outbuf, &info);
return GST_FLOW_OK; return GST_FLOW_OK;
} }
@ -176,10 +166,7 @@ static void
gst_stereo_set_property (GObject * object, guint prop_id, const GValue * value, gst_stereo_set_property (GObject * object, guint prop_id, const GValue * value,
GParamSpec * pspec) GParamSpec * pspec)
{ {
GstStereo *stereo; GstStereo *stereo = GST_STEREO (object);
g_return_if_fail (GST_IS_STEREO (object));
stereo = GST_STEREO (object);
switch (prop_id) { switch (prop_id) {
case ARG_ACTIVE: case ARG_ACTIVE:
@ -198,10 +185,7 @@ static void
gst_stereo_get_property (GObject * object, guint prop_id, GValue * value, gst_stereo_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec) GParamSpec * pspec)
{ {
GstStereo *stereo; GstStereo *stereo = GST_STEREO (object);
g_return_if_fail (GST_IS_STEREO (object));
stereo = GST_STEREO (object);
switch (prop_id) { switch (prop_id) {
case ARG_ACTIVE: case ARG_ACTIVE: