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fluidsynth: add properties

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Add properties.
Try to find a good default soundfont when not specified.
This commit is contained in:
Wim Taymans 2013-03-22 11:04:10 +01:00
parent 30585c8f8e
commit d09a72029c
2 changed files with 187 additions and 22 deletions
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193
ext/fluidsynth/gstfluidsynth.c
View file

@ -63,10 +63,22 @@ enum
LAST_SIGNAL
};
#define SOUNDFONT_PATH "/usr/share/sounds/sf2/"
#define DEFAULT_SOUNDFONT NULL
#define DEFAULT_SYNTH_CHORUS TRUE
#define DEFAULT_SYNTH_REVERB TRUE
#define DEFAULT_SYNTH_GAIN 0.2
#define DEFAULT_SYNTH_POLYPHONY 256
enum
{
PROP_0,
/* FILL ME */
PROP_SOUNDFONT,
PROP_SYNTH_CHORUS,
PROP_SYNTH_REVERB,
PROP_SYNTH_GAIN,
PROP_SYNTH_POLYPHONY
};
static void gst_fluidsynth_finalize (GObject * object);
@ -142,6 +154,31 @@ gst_fluidsynth_class_init (GstFluidsynthClass * klass)
gobject_class->set_property = gst_fluidsynth_set_property;
gobject_class->get_property = gst_fluidsynth_get_property;
g_object_class_install_property (gobject_class, PROP_SOUNDFONT,
g_param_spec_string ("soundfont",
"Soundfont", "the filename of a soundfont (NULL for default)",
DEFAULT_SOUNDFONT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_SYNTH_CHORUS,
g_param_spec_boolean ("synth-chorus",
"Synth Chorus", "Turn the chorus on or off",
DEFAULT_SYNTH_CHORUS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_SYNTH_REVERB,
g_param_spec_boolean ("synth-reverb",
"Synth Reverb", "Turn the reverb on or off",
DEFAULT_SYNTH_REVERB, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_SYNTH_GAIN,
g_param_spec_double ("synth-gain",
"Synth Gain", "Set the master gain", 0.0, 10.0,
DEFAULT_SYNTH_GAIN, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_SYNTH_POLYPHONY,
g_param_spec_int ("synth-polyphony",
"Synth Polyphony", "The number of simultaneous voices", 1, 65535,
DEFAULT_SYNTH_POLYPHONY, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&src_factory));
gst_element_class_add_pad_template (gstelement_class,
@ -187,11 +224,32 @@ gst_fluidsynth_init (GstFluidsynth * filter)
filter->srcpad = gst_pad_new_from_static_template (&src_factory, "src");
gst_pad_use_fixed_caps (filter->srcpad);
gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad);
filter->soundfont = g_strdup (DEFAULT_SOUNDFONT);
filter->synth_chorus = DEFAULT_SYNTH_CHORUS;
filter->synth_reverb = DEFAULT_SYNTH_REVERB;
filter->synth_gain = DEFAULT_SYNTH_GAIN;
filter->synth_polyphony = DEFAULT_SYNTH_POLYPHONY;
filter->settings = new_fluid_settings ();
filter->synth = new_fluid_synth (filter->settings);
filter->sf = -1;
fluid_synth_set_chorus_on (filter->synth, filter->synth_chorus);
fluid_synth_set_reverb_on (filter->synth, filter->synth_reverb);
fluid_synth_set_gain (filter->synth, filter->synth_gain);
fluid_synth_set_polyphony (filter->synth, filter->synth_polyphony);
}
static void
gst_fluidsynth_finalize (GObject * object)
{
GstFluidsynth *fluidsynth = GST_FLUIDSYNTH (object);
delete_fluid_synth (fluidsynth->synth);
delete_fluid_settings (fluidsynth->settings);
g_free (fluidsynth->soundfont);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
@ -255,6 +313,8 @@ gst_fluidsynth_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
"channels", G_TYPE_INT, 2,
"layout", G_TYPE_STRING, "interleaved", NULL);
fluid_synth_set_sample_rate (fluidsynth->synth, FLUIDSYNTH_RATE);
res = gst_pad_push_event (fluidsynth->srcpad, gst_event_new_caps (caps));
gst_caps_unref (caps);
break;
@ -426,30 +486,87 @@ gst_fluidsynth_chain (GstPad * sinkpad, GstObject * parent, GstBuffer * buffer)
static gboolean
gst_fluidsynth_open (GstFluidsynth * fluidsynth)
{
if (fluidsynth->settings == NULL) {
fluidsynth->settings = new_fluid_settings ();
fluidsynth->synth = new_fluid_synth (fluidsynth->settings);
/* FIXME configure path */
fluidsynth->soundfont = fluid_synth_sfload (fluidsynth->synth,
"/usr/share/sounds/sf2/FluidR3_GM.sf2", 1);
fluid_synth_set_chorus_on (fluidsynth->synth, TRUE);
fluid_synth_set_gain (fluidsynth->synth, 0.2);
fluid_synth_set_polyphony (fluidsynth->synth, 256);
fluid_synth_set_reverb_on (fluidsynth->synth, TRUE);
fluid_synth_set_sample_rate (fluidsynth->synth, FLUIDSYNTH_RATE);
}
GDir *dir;
GError *error = NULL;
if (fluidsynth->sf != -1)
return TRUE;
if (fluidsynth->soundfont) {
GST_DEBUG_OBJECT (fluidsynth, "loading soundfont file %s",
fluidsynth->soundfont);
fluidsynth->sf = fluid_synth_sfload (fluidsynth->synth,
fluidsynth->soundfont, 1);
if (fluidsynth->sf == -1)
goto load_failed;
GST_DEBUG_OBJECT (fluidsynth, "loaded soundfont file %s",
fluidsynth->soundfont);
} else {
dir = g_dir_open (SOUNDFONT_PATH, 0, &error);
if (dir == NULL)
goto open_dir_failed;
while (TRUE) {
const gchar *name;
gchar *filename;
if ((name = g_dir_read_name (dir)) == NULL)
break;
filename = g_build_filename (SOUNDFONT_PATH, name, NULL);
GST_DEBUG_OBJECT (fluidsynth, "loading soundfont file %s", filename);
fluidsynth->sf = fluid_synth_sfload (fluidsynth->synth, filename, 1);
if (fluidsynth->sf != -1) {
GST_DEBUG_OBJECT (fluidsynth, "loaded soundfont file %s", filename);
break;
}
GST_DEBUG_OBJECT (fluidsynth, "could not load soundfont file %s",
filename);
}
g_dir_close (dir);
if (fluidsynth->sf == -1)
goto no_soundfont;
}
return TRUE;
/* ERRORS */
load_failed:
{
GST_ELEMENT_ERROR (fluidsynth, RESOURCE, OPEN_READ,
("Can't open soundfont %s", fluidsynth->soundfont),
("failed to open soundfont file %s for reading",
fluidsynth->soundfont));
return FALSE;
}
open_dir_failed:
{
GST_ELEMENT_ERROR (fluidsynth, RESOURCE, OPEN_READ,
("Can't open directory %s", SOUNDFONT_PATH),
("failed to open directory %s for reading: %s", SOUNDFONT_PATH,
error->message));
g_error_free (error);
return FALSE;
}
no_soundfont:
{
GST_ELEMENT_ERROR (fluidsynth, RESOURCE, OPEN_READ,
("Can't find soundfont file in directory %s", SOUNDFONT_PATH),
("No usable soundfont files found in %s", SOUNDFONT_PATH));
return FALSE;
}
}
static gboolean
gst_fluidsynth_close (GstFluidsynth * fluidsynth)
{
if (fluidsynth->settings) {
fluid_synth_sfunload (fluidsynth->synth, fluidsynth->soundfont, 1);
delete_fluid_synth (fluidsynth->synth);
delete_fluid_settings (fluidsynth->settings);
fluidsynth->settings = NULL;
if (fluidsynth->sf) {
fluid_synth_sfunload (fluidsynth->synth, fluidsynth->sf, 1);
fluidsynth->sf = -1;
}
return TRUE;
}
@ -501,7 +618,30 @@ static void
gst_fluidsynth_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstFluidsynth *fluidsynth = GST_FLUIDSYNTH (object);
switch (prop_id) {
case PROP_SOUNDFONT:
g_free (fluidsynth->soundfont);
fluidsynth->soundfont = g_value_dup_string (value);
break;
case PROP_SYNTH_CHORUS:
fluidsynth->synth_chorus = g_value_get_boolean (value);
fluid_synth_set_chorus_on (fluidsynth->synth, fluidsynth->synth_chorus);
break;
case PROP_SYNTH_REVERB:
fluidsynth->synth_reverb = g_value_get_boolean (value);
fluid_synth_set_reverb_on (fluidsynth->synth, fluidsynth->synth_reverb);
break;
case PROP_SYNTH_GAIN:
fluidsynth->synth_gain = g_value_get_double (value);
fluid_synth_set_gain (fluidsynth->synth, fluidsynth->synth_gain);
break;
case PROP_SYNTH_POLYPHONY:
fluidsynth->synth_polyphony = g_value_get_int (value);
fluid_synth_set_polyphony (fluidsynth->synth,
fluidsynth->synth_polyphony);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -512,7 +652,24 @@ static void
gst_fluidsynth_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstFluidsynth *fluidsynth = GST_FLUIDSYNTH (object);
switch (prop_id) {
case PROP_SOUNDFONT:
g_value_set_string (value, fluidsynth->soundfont);
break;
case PROP_SYNTH_CHORUS:
g_value_set_boolean (value, fluidsynth->synth_chorus);
break;
case PROP_SYNTH_REVERB:
g_value_set_boolean (value, fluidsynth->synth_reverb);
break;
case PROP_SYNTH_GAIN:
g_value_set_double (value, fluidsynth->synth_gain);
break;
case PROP_SYNTH_POLYPHONY:
g_value_set_int (value, fluidsynth->synth_polyphony);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;

16
ext/fluidsynth/gstfluidsynth.h
View file

@ -48,13 +48,21 @@ struct _GstFluidsynth
GstElement element;
GstPad *sinkpad, *srcpad;
GstSegment segment;
GstClockTime last_pts;
guint64 last_sample;
/* properties */
gchar *soundfont;
gboolean synth_chorus;
gboolean synth_reverb;
gdouble synth_gain;
gint synth_polyphony;
fluid_settings_t* settings;
fluid_synth_t* synth;
int soundfont;
int sf;
GstSegment segment;
GstClockTime last_pts;
guint64 last_sample;
};
struct _GstFluidsynthClass