// constructor
fluidsynth(t_CKFLOAT fs)
{
m_srate = fs;
m_settings = new_fluid_settings();
m_synth = new_fluid_synth(m_settings);
fluid_synth_set_sample_rate(m_synth, m_srate);
}
static gboolean
gst_fluid_dec_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
{
gboolean res;
GstFluidDec *fluiddec = GST_FLUID_DEC (parent);
GST_DEBUG_OBJECT (pad, "%s event received", GST_EVENT_TYPE_NAME (event));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CAPS:
{
GstCaps *caps;
caps = gst_caps_new_simple ("audio/x-raw",
"format", G_TYPE_STRING, GST_AUDIO_NE (F32),
"rate", G_TYPE_INT, FLUID_DEC_RATE,
"channels", G_TYPE_INT, 2,
"layout", G_TYPE_STRING, "interleaved", NULL);
fluid_synth_set_sample_rate (fluiddec->synth, FLUID_DEC_RATE);
res = gst_pad_push_event (fluiddec->srcpad, gst_event_new_caps (caps));
gst_caps_unref (caps);
break;
}
case GST_EVENT_SEGMENT:
gst_event_copy_segment (event, &fluiddec->segment);
GST_DEBUG_OBJECT (fluiddec, "configured segment %" GST_SEGMENT_FORMAT,
&fluiddec->segment);
res = gst_pad_event_default (pad, parent, event);
break;
case GST_EVENT_FLUSH_STOP:
gst_fluid_dec_reset (fluiddec);
res = gst_pad_event_default (pad, parent, event);
break;
case GST_EVENT_EOS:
/* FIXME, push last samples */
res = gst_pad_event_default (pad, parent, event);
break;
default:
res = gst_pad_event_default (pad, parent, event);
break;
}
return res;
}
static int Open (vlc_object_t *p_this)
{
decoder_t *p_dec = (decoder_t *)p_this;
if (p_dec->fmt_in.i_codec != VLC_CODEC_MIDI)
return VLC_EGENERIC;
decoder_sys_t *p_sys = (decoder_sys_t *)malloc (sizeof (*p_sys)); // sunqueen modify
if (unlikely(p_sys == NULL))
return VLC_ENOMEM;
p_sys->settings = new_fluid_settings ();
p_sys->synth = new_fluid_synth (p_sys->settings);
p_sys->soundfont = -1;
char *font_path = var_InheritString (p_this, "soundfont");
if (font_path != NULL)
{
msg_Dbg (p_this, "loading sound fonts file %s", font_path);
p_sys->soundfont = fluid_synth_sfload (p_sys->synth, font_path, 1);
if (p_sys->soundfont == -1)
msg_Err (p_this, "cannot load sound fonts file %s", font_path);
free (font_path);
}
#ifdef _POSIX_VERSION
else
{
glob_t gl;
glob ("/usr/share/sounds/sf2/*.sf2", GLOB_NOESCAPE, NULL, &gl);
for (size_t i = 0; i < gl.gl_pathc; i++)
{
const char *path = gl.gl_pathv[i];
msg_Dbg (p_this, "loading sound fonts file %s", path);
p_sys->soundfont = fluid_synth_sfload (p_sys->synth, path, 1);
if (p_sys->soundfont != -1)
break; /* it worked! */
msg_Err (p_this, "cannot load sound fonts file %s", path);
}
globfree (&gl);
}
#endif
if (p_sys->soundfont == -1)
{
msg_Err (p_this, "sound font file required for synthesis");
dialog_Fatal (p_this, _("MIDI synthesis not set up"),
_("A sound font file (.SF2) is required for MIDI synthesis.\n"
"Please install a sound font and configure it "
"from the VLC preferences "
"(Input / Codecs > Audio codecs > FluidSynth).\n"));
delete_fluid_synth (p_sys->synth);
delete_fluid_settings (p_sys->settings);
free (p_sys);
return VLC_EGENERIC;
}
fluid_synth_set_chorus_on (p_sys->synth,
var_InheritBool (p_this, "synth-chorus"));
fluid_synth_set_gain (p_sys->synth,
var_InheritFloat (p_this, "synth-gain"));
fluid_synth_set_polyphony (p_sys->synth,
var_InheritInteger (p_this, "synth-polyphony"));
fluid_synth_set_reverb_on (p_sys->synth,
var_InheritBool (p_this, "synth-reverb"));
p_dec->fmt_out.i_cat = AUDIO_ES;
p_dec->fmt_out.audio.i_rate =
var_InheritInteger (p_this, "synth-sample-rate");;
fluid_synth_set_sample_rate (p_sys->synth, p_dec->fmt_out.audio.i_rate);
p_dec->fmt_out.audio.i_channels = 2;
p_dec->fmt_out.audio.i_original_channels =
p_dec->fmt_out.audio.i_physical_channels =
AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT;
p_dec->fmt_out.i_codec = VLC_CODEC_FL32;
p_dec->fmt_out.audio.i_bitspersample = 32;
date_Init (&p_sys->end_date, p_dec->fmt_out.audio.i_rate, 1);
date_Set (&p_sys->end_date, 0);
p_dec->p_sys = p_sys;
p_dec->pf_decode_audio = DecodeBlock;
return VLC_SUCCESS;
}
static void FSynth_update(FSynth *self, ALCdevice *device)
{
fluid_settings_setnum(self->Settings, "synth.sample-rate", device->Frequency);
fluid_synth_set_sample_rate(self->Synth, device->Frequency);
MidiSynth_update(STATIC_CAST(MidiSynth, self), device);
}
