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bs2b: implement the preset interface

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Instead of a preset property implement the preset interface in a read-only
fashion.
This commit is contained in:
Stefan Sauer 2015-01-12 21:22:06 +01:00
parent 4a4fd5e968
commit b533ad8502
1 changed files with 99 additions and 93 deletions
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192
ext/bs2b/gstbs2b.c
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@ -18,7 +18,6 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* SECTION:element-bs2b
*
@ -71,23 +70,37 @@ enum
{
PROP_FCUT = 1,
PROP_FEED,
PROP_PRESET,
PROP_LAST,
};
static GParamSpec *properties[PROP_LAST];
enum
typedef struct
{
PRESET_DEFAULT,
PRESET_CMOY,
PRESET_JMEIER,
PRESET_NONE
const gchar *name;
const gchar *desc;
gint preset;
} GstBs2bPreset;
static GstBs2bPreset presets[3] = {
{
"default",
"Closest to virtual speaker placement (30°, 3 meter) [700Hz, 4.5dB]",
BS2B_DEFAULT_CLEVEL},
{
"cmoy",
"Close to Chu Moy's crossfeeder (popular) [700Hz, 6.0dB]",
BS2B_CMOY_CLEVEL},
{
"jmeier",
"Close to Jan Meier's CORDA amplifiers (little change) [650Hz, 9.0dB]",
BS2B_JMEIER_CLEVEL}
};
G_DEFINE_TYPE (GstBs2b, gst_bs2b, GST_TYPE_AUDIO_FILTER);
static void gst_preset_interface_init (gpointer g_iface, gpointer iface_data);
static GType gst_bs2b_preset_get_type (void);
G_DEFINE_TYPE_WITH_CODE (GstBs2b, gst_bs2b, GST_TYPE_AUDIO_FILTER,
G_IMPLEMENT_INTERFACE (GST_TYPE_PRESET, gst_preset_interface_init));
static void gst_bs2b_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
@ -100,6 +113,83 @@ static GstFlowReturn gst_bs2b_transform_inplace (GstBaseTransform *
static gboolean gst_bs2b_setup (GstAudioFilter * self,
const GstAudioInfo * audio_info);
static gchar **
gst_bs2b_get_preset_names (GstPreset * preset)
{
gchar **names;
gint i;
names = g_new (gchar *, 1 + G_N_ELEMENTS (presets));
for (i = 0; i < G_N_ELEMENTS (presets); i++) {
names[i] = g_strdup (presets[i].name);
}
names[i] = NULL;
return names;
}
static gchar **
gst_bs2b_get_property_names (GstPreset * preset)
{
gchar **names = g_new (gchar *, 3);
names[0] = g_strdup ("fcut");
names[1] = g_strdup ("feed");
names[2] = NULL;
return names;
}
static gboolean
gst_bs2b_load_preset (GstPreset * preset, const gchar * name)
{
GstBs2b *element = GST_BS2B (preset);
GObject *object = (GObject *) preset;
gint i;
for (i = 0; i < G_N_ELEMENTS (presets); i++) {
if (!g_strcmp0 (presets[i].name, name)) {
bs2b_set_level (element->bs2bdp, presets[i].preset);
g_object_notify_by_pspec (object, properties[PROP_FCUT]);
g_object_notify_by_pspec (object, properties[PROP_FEED]);
return TRUE;
}
}
return FALSE;
}
static gboolean
gst_bs2b_get_meta (GstPreset * preset, const gchar * name,
const gchar * tag, gchar ** value)
{
if (!g_strcmp0 (tag, "comment")) {
gint i;
for (i = 0; i < G_N_ELEMENTS (presets); i++) {
if (!g_strcmp0 (presets[i].name, name)) {
*value = g_strdup (presets[i].desc);
return TRUE;
}
}
}
*value = NULL;
return FALSE;
}
static void
gst_preset_interface_init (gpointer g_iface, gpointer iface_data)
{
GstPresetInterface *iface = g_iface;
iface->get_preset_names = gst_bs2b_get_preset_names;
iface->get_property_names = gst_bs2b_get_property_names;
iface->load_preset = gst_bs2b_load_preset;
iface->save_preset = NULL;
iface->rename_preset = NULL;
iface->delete_preset = NULL;
iface->get_meta = gst_bs2b_get_meta;
iface->set_meta = NULL;
}
static void
gst_bs2b_class_init (GstBs2bClass * klass)
@ -129,11 +219,6 @@ gst_bs2b_class_init (GstBs2bClass * klass)
BS2B_MINFEED, BS2B_MAXFEED, BS2B_DEFAULT_CLEVEL >> 16,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS);
properties[PROP_PRESET] =
g_param_spec_enum ("preset", "Preset", "Bs2b filter preset",
gst_bs2b_preset_get_type (), PRESET_DEFAULT,
G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE | G_PARAM_STATIC_STRINGS);
g_object_class_install_properties (gobject_class, PROP_LAST, properties);
gst_element_class_set_metadata (element_class,
@ -274,38 +359,6 @@ gst_bs2b_transform_inplace (GstBaseTransform * base_transform,
return GST_FLOW_OK;
}
static GType
gst_bs2b_preset_get_type (void)
{
static GType bs2b_preset_type = 0;
if (!bs2b_preset_type) {
static GEnumValue types[] = {
{
PRESET_DEFAULT,
"Closest to virtual speaker placement (30°, 3 meter) [700Hz, 4.5dB]",
"default"},
{
PRESET_CMOY,
"Close to Chu Moy's crossfeeder (popular) [700Hz, 6.0dB]",
"cmoy"},
{
PRESET_JMEIER,
"Close to Jan Meier's CORDA amplifiers (little change) [650Hz, 9.0dB]",
"jmeier"},
{
PRESET_NONE,
"No preset",
"none"},
{0, NULL, NULL},
};
bs2b_preset_type = g_enum_register_static ("GstBs2bPreset", types);
}
return bs2b_preset_type;
}
static void
gst_bs2b_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
@ -318,41 +371,12 @@ gst_bs2b_set_property (GObject * object, guint prop_id,
bs2b_set_level_fcut (element->bs2bdp, g_value_get_int (value));
bs2b_clear (element->bs2bdp);
GST_BS2B_DP_UNLOCK (element);
g_object_notify_by_pspec (object, properties[PROP_PRESET]);
break;
case PROP_FEED:
GST_BS2B_DP_LOCK (element);
bs2b_set_level_feed (element->bs2bdp, g_value_get_int (value));
bs2b_clear (element->bs2bdp);
GST_BS2B_DP_UNLOCK (element);
g_object_notify_by_pspec (object, properties[PROP_PRESET]);
break;
case PROP_PRESET:
switch (g_value_get_enum (value)) {
case PRESET_DEFAULT:
GST_BS2B_DP_LOCK (element);
bs2b_set_level (element->bs2bdp, BS2B_DEFAULT_CLEVEL);
bs2b_clear (element->bs2bdp);
GST_BS2B_DP_UNLOCK (element);
break;
case PRESET_CMOY:
GST_BS2B_DP_LOCK (element);
bs2b_set_level (element->bs2bdp, BS2B_CMOY_CLEVEL);
bs2b_clear (element->bs2bdp);
GST_BS2B_DP_UNLOCK (element);
break;
case PRESET_JMEIER:
GST_BS2B_DP_LOCK (element);
bs2b_set_level (element->bs2bdp, BS2B_JMEIER_CLEVEL);
bs2b_clear (element->bs2bdp);
GST_BS2B_DP_UNLOCK (element);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
return;
}
g_object_notify_by_pspec (object, properties[PROP_FCUT]);
g_object_notify_by_pspec (object, properties[PROP_FEED]);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
@ -377,24 +401,6 @@ gst_bs2b_get_property (GObject * object, guint prop_id, GValue * value,
g_value_set_int (value, bs2b_get_level_feed (element->bs2bdp));
GST_BS2B_DP_UNLOCK (element);
break;
case PROP_PRESET:
GST_BS2B_DP_LOCK (element);
switch (bs2b_get_level (element->bs2bdp)) {
case BS2B_DEFAULT_CLEVEL:
g_value_set_enum (value, PRESET_DEFAULT);
break;
case BS2B_CMOY_CLEVEL:
g_value_set_enum (value, PRESET_CMOY);
break;
case BS2B_JMEIER_CLEVEL:
g_value_set_enum (value, PRESET_JMEIER);
break;
default:
g_value_set_enum (value, PRESET_NONE);
break;
}
GST_BS2B_DP_UNLOCK (element);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;