/*****************************************************************************
- * fluidsynth.c: Software MIDI synthetizer using libfluidsynth
+ * fluidsynth.c: Software MIDI synthesizer using libfluidsynth
*****************************************************************************
* Copyright © 2007 Rémi Denis-Courmont
* $Id$
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
#include <vlc_common.h>
#include <vlc_plugin.h>
-#include <vlc_aout.h>
#include <vlc_codec.h>
+#include <vlc_dialog.h>
+
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+#ifdef _POSIX_VERSION
+# include <glob.h>
+#endif
+
+/* On Win32, we link statically */
+#ifdef _WIN32
+# define FLUIDSYNTH_NOT_A_DLL
+#endif
#include <fluidsynth.h>
-#define SOUNDFONT_TEXT N_("Sound fonts (required)")
+#define SOUNDFONT_TEXT N_("Sound fonts")
#define SOUNDFONT_LONGTEXT N_( \
"A sound fonts file is required for software synthesis." )
+#define CHORUS_TEXT N_("Chorus")
+
+#define GAIN_TEXT N_("Synthesis gain")
+#define GAIN_LONGTEXT N_("This gain is applied to synthesis output. " \
+ "High values may cause saturation when many notes are played at a time." )
+
+#define POLYPHONY_TEXT N_("Polyphony")
+#define POLYPHONY_LONGTEXT N_( \
+ "The polyphony defines how many voices can be played at a time. " \
+ "Larger values require more processing power.")
+
+#define REVERB_TEXT N_("Reverb")
+
+#define SAMPLE_RATE_TEXT N_("Sample rate")
+
static int Open (vlc_object_t *);
static void Close (vlc_object_t *);
vlc_module_begin ()
- set_description (N_("FluidSynth MIDI synthetizer"))
+ set_description (N_("FluidSynth MIDI synthesizer"))
set_capability ("decoder", 100)
set_shortname (N_("FluidSynth"))
set_category (CAT_INPUT)
set_subcategory (SUBCAT_INPUT_ACODEC)
set_callbacks (Open, Close)
- add_file ("soundfont", "", NULL,
- SOUNDFONT_TEXT, SOUNDFONT_LONGTEXT, false);
+ add_loadfile ("soundfont", "",
+ SOUNDFONT_TEXT, SOUNDFONT_LONGTEXT, false)
+ add_bool ("synth-chorus", true, CHORUS_TEXT, CHORUS_TEXT, false)
+ add_float ("synth-gain", .5, GAIN_TEXT, GAIN_LONGTEXT, false)
+ change_float_range (0., 10.)
+ add_integer ("synth-polyphony", 256,
+ POLYPHONY_TEXT, POLYPHONY_LONGTEXT, false)
+ change_integer_range (1, 65535)
+ add_bool ("synth-reverb", true, REVERB_TEXT, REVERB_TEXT, true)
+ add_integer ("synth-sample-rate", 44100,
+ SAMPLE_RATE_TEXT, SAMPLE_RATE_TEXT, true)
+ change_integer_range (22050, 96000)
vlc_module_end ()
fluid_settings_t *settings;
fluid_synth_t *synth;
int soundfont;
- audio_date_t end_date;
+ date_t end_date;
};
-static aout_buffer_t *DecodeBlock (decoder_t *p_dec, block_t **pp_block);
+static block_t *DecodeBlock (decoder_t *p_dec, block_t **pp_block);
static int Open (vlc_object_t *p_this)
{
decoder_t *p_dec = (decoder_t *)p_this;
- decoder_sys_t *p_sys;
if (p_dec->fmt_in.i_codec != VLC_CODEC_MIDI)
return VLC_EGENERIC;
- char *font_path = var_CreateGetNonEmptyString (p_this, "soundfont");
- if (font_path == NULL)
+ decoder_sys_t *p_sys = malloc (sizeof (*p_sys));
+ 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 fonts file required for synthesis");
+ 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 = 44100;
+ 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;
- p_sys = p_dec->p_sys = malloc (sizeof (*p_sys));
- if (p_sys == NULL)
- {
- free (font_path);
- return VLC_ENOMEM;
- }
-
- p_sys->settings = new_fluid_settings ();
- p_sys->synth = new_fluid_synth (p_sys->settings);
- /* FIXME: I bet this is not thread-safe */
- p_sys->soundfont = fluid_synth_sfload (p_sys->synth, font_path, 1);
- free (font_path);
- if (p_sys->soundfont == -1)
- {
- msg_Err (p_this, "cannot load sound fonts file");
- Close (p_this);
- return VLC_EGENERIC;
- }
-
- aout_DateInit (&p_sys->end_date, p_dec->fmt_out.audio.i_rate);
- aout_DateSet (&p_sys->end_date, 0);
-
return VLC_SUCCESS;
}
{
decoder_sys_t *p_sys = ((decoder_t *)p_this)->p_sys;
- if (p_sys->soundfont != -1)
- fluid_synth_sfunload (p_sys->synth, p_sys->soundfont, 1);
+ fluid_synth_sfunload (p_sys->synth, p_sys->soundfont, 1);
delete_fluid_synth (p_sys->synth);
delete_fluid_settings (p_sys->settings);
free (p_sys);
}
-static aout_buffer_t *DecodeBlock (decoder_t *p_dec, block_t **pp_block)
+static block_t *DecodeBlock (decoder_t *p_dec, block_t **pp_block)
{
block_t *p_block;
decoder_sys_t *p_sys = p_dec->p_sys;
+ block_t *p_out = NULL;
if (pp_block == NULL)
return NULL;
p_block = *pp_block;
if (p_block == NULL)
return NULL;
+ *pp_block = NULL;
- if (p_block->i_pts && !aout_DateGet (&p_sys->end_date))
- aout_DateSet (&p_sys->end_date, p_block->i_pts);
+ if (p_block->i_pts > VLC_TS_INVALID && !date_Get (&p_sys->end_date))
+ date_Set (&p_sys->end_date, p_block->i_pts);
else
- if (p_block->i_pts < aout_DateGet (&p_sys->end_date))
+ if (p_block->i_pts < date_Get (&p_sys->end_date))
{
msg_Warn (p_dec, "MIDI message in the past?");
- block_Release (p_block);
- return NULL;
+ goto drop;
}
if (p_block->i_buffer < 1)
- return NULL;
+ goto drop;
+ uint8_t event = p_block->p_buffer[0];
uint8_t channel = p_block->p_buffer[0] & 0xf;
+ event &= 0xF0;
+
+ if (event == 0xF0)
+ switch (channel)
+ {
+ case 0:
+ if (p_block->p_buffer[p_block->i_buffer - 1] != 0xF7)
+ {
+ case 7:
+ msg_Warn (p_dec, "fragmented SysEx not implemented");
+ goto drop;
+ }
+ fluid_synth_sysex (p_sys->synth, (char *)p_block->p_buffer + 1,
+ p_block->i_buffer - 2, NULL, NULL, NULL, 0);
+ break;
+ case 0xF:
+ fluid_synth_system_reset (p_sys->synth);
+ break;
+ }
+
uint8_t p1 = (p_block->i_buffer > 1) ? (p_block->p_buffer[1] & 0x7f) : 0;
uint8_t p2 = (p_block->i_buffer > 2) ? (p_block->p_buffer[2] & 0x7f) : 0;
- switch (p_block->p_buffer[0] & 0xf0)
+ switch (event & 0xF0)
{
case 0x80:
fluid_synth_noteoff (p_sys->synth, channel, p1);
case 0x90:
fluid_synth_noteon (p_sys->synth, channel, p1, p2);
break;
+ /*case 0xA0: note aftertouch not implemented */
case 0xB0:
fluid_synth_cc (p_sys->synth, channel, p1, p2);
break;
case 0xC0:
fluid_synth_program_change (p_sys->synth, channel, p1);
break;
+ case 0xD0:
+ fluid_synth_channel_pressure (p_sys->synth, channel, p1);
+ break;
case 0xE0:
- fluid_synth_pitch_bend (p_sys->synth, channel, (p1 << 7) | p2);
+ fluid_synth_pitch_bend (p_sys->synth, channel, (p2 << 7) | p1);
break;
}
- p_block->p_buffer += p_block->i_buffer;
- p_block->i_buffer = 0;
unsigned samples =
- (p_block->i_pts - aout_DateGet (&p_sys->end_date)) * 441 / 10000;
+ (p_block->i_pts - date_Get (&p_sys->end_date)) * 441 / 10000;
if (samples == 0)
- return NULL;
+ goto drop;
- aout_buffer_t *p_out = decoder_NewAudioBuffer (p_dec, samples);
+ p_out = decoder_NewAudioBuffer (p_dec, samples);
if (p_out == NULL)
- {
- block_Release (p_block);
- return NULL;
- }
+ goto drop;
- p_out->start_date = aout_DateGet (&p_sys->end_date );
- p_out->end_date = aout_DateIncrement (&p_sys->end_date, samples);
- fluid_synth_write_float (p_sys->synth, samples,
- p_out->p_buffer, 0, 2,
+ p_out->i_pts = date_Get (&p_sys->end_date );
+ p_out->i_length = date_Increment (&p_sys->end_date, samples)
+ - p_out->i_pts;
+ fluid_synth_write_float (p_sys->synth, samples, p_out->p_buffer, 0, 2,
p_out->p_buffer, 1, 2);
+drop:
+ block_Release (p_block);
return p_out;
}
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