1 /*****************************************************************************
2 * spatializer.cpp: sound reverberation
3 *****************************************************************************
4 * Copyright (C) 2004, 2006, 2007 the VideoLAN team
6 * Google Summer of Code 2007
8 * Authors: Biodun Osunkunle <biodun@videolan.org>
10 * Mentor : Jean-Baptiste Kempf <jb@videolan.org>
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
25 *****************************************************************************/
27 /*****************************************************************************
29 *****************************************************************************/
30 #include <stdlib.h> /* malloc(), free() */
37 #include <vlc_common.h>
38 #include <vlc_plugin.h>
40 #include "revmodel.hpp"
42 /*****************************************************************************
44 *****************************************************************************/
45 static int Open ( vlc_object_t * );
46 static void Close( vlc_object_t * );
48 #define ROOMSIZE_TEXT N_("Room size")
49 #define ROOMSIZE_LONGTEXT N_("Defines the virtual surface of the room" \
50 "emulated by the filter." )
52 #define WIDTH_TEXT N_("Room width")
53 #define WIDTH_LONGTEXT N_("Width of the virtual room")
55 #define WET_TEXT N_("Wet")
56 #define WET_LONGTEXT NULL
58 #define DRY_TEXT N_("Dry")
59 #define DRY_LONGTEXT NULL
61 #define DAMP_TEXT N_("Damp")
62 #define DAMP_LONGTEXT NULL
65 set_description( N_("Audio Spatializer") )
66 set_shortname( N_("Spatializer" ) )
67 set_capability( "audio filter", 0 )
68 set_category( CAT_AUDIO )
69 set_subcategory( SUBCAT_AUDIO_AFILTER )
71 set_callbacks( Open, Close )
72 add_shortcut( "spatializer" )
73 add_float( "spatializer-roomsize", 1.05, NULL, ROOMSIZE_TEXT,
74 ROOMSIZE_LONGTEXT, true )
75 add_float( "spatializer-width", 10., NULL, WIDTH_TEXT,WIDTH_LONGTEXT, true )
76 add_float( "spatializer-wet", 3., NULL, WET_TEXT,WET_LONGTEXT, true )
77 add_float( "spatializer-dry", 2., NULL, DRY_TEXT,DRY_LONGTEXT, true )
78 add_float( "spatializer-damp", 1., NULL, DAMP_TEXT,DAMP_LONGTEXT, true )
81 /*****************************************************************************
83 *****************************************************************************/
84 struct aout_filter_sys_t
94 CLocker( vlc_mutex_t *p_lock ) : p_lock(p_lock) {
95 vlc_mutex_lock( p_lock );
98 vlc_mutex_unlock( p_lock );
104 static const char *psz_control_names[] =
106 "spatializer-roomsize", "spatializer-width" ,
107 "spatializer-wet", "spatializer-dry", "spatializer-damp"
109 static void DoWork( aout_instance_t *, aout_filter_t *,
110 aout_buffer_t *, aout_buffer_t * );
112 static int SpatInit( aout_filter_t *);
113 static void SpatFilter( aout_instance_t *,aout_filter_t *, float *, float *,
115 static void SpatClean( aout_filter_t * );
116 static int RoomCallback ( vlc_object_t *, char const *,
117 vlc_value_t, vlc_value_t, void * );
118 static int WetCallback ( vlc_object_t *, char const *,
119 vlc_value_t, vlc_value_t, void * );
120 static int DryCallback ( vlc_object_t *, char const *,
121 vlc_value_t, vlc_value_t, void * );
122 static int DampCallback ( vlc_object_t *, char const *,
123 vlc_value_t, vlc_value_t, void * );
124 static int WidthCallback ( vlc_object_t *, char const *,
125 vlc_value_t, vlc_value_t, void * );
127 /*****************************************************************************
129 *****************************************************************************/
130 static int Open( vlc_object_t *p_this )
132 aout_filter_t *p_filter = (aout_filter_t *)p_this;
133 aout_filter_sys_t *p_sys;
135 msg_Dbg(p_this, "Opening filter spatializer %s %s %d", __FILE__,__func__,__LINE__);
137 if( p_filter->input.i_format != VLC_CODEC_FL32 ||
138 p_filter->output.i_format != VLC_CODEC_FL32 )
141 p_filter->input.i_format = VLC_CODEC_FL32;
142 p_filter->output.i_format = VLC_CODEC_FL32;
143 msg_Warn( p_filter, "bad input or output format" );
145 if ( !AOUT_FMTS_SIMILAR( &p_filter->input, &p_filter->output ) )
148 memcpy( &p_filter->output, &p_filter->input,
149 sizeof(audio_sample_format_t) );
150 msg_Warn( p_filter, "input and output formats are not similar" );
158 p_filter->pf_do_work = DoWork;
159 p_filter->b_in_place = true;
161 /* Allocate structure */
162 p_sys = p_filter->p_sys = (aout_filter_sys_t*)malloc( sizeof( aout_filter_sys_t ) );
166 vlc_mutex_init( &p_sys->lock );
167 p_sys->p_reverbm = new revmodel();
168 p_sys->p_reverbm->setroomsize(1.05);
169 p_sys->p_reverbm->setwet(10.0f);
170 p_sys->p_reverbm->setdry(1.0f);
171 p_sys->p_reverbm->setdamp(0.3);
172 p_sys->p_reverbm->setwidth(0.9);
178 /*****************************************************************************
179 * Close: close the plugin
180 *****************************************************************************/
181 static void Close( vlc_object_t *p_this )
183 aout_filter_t *p_filter = (aout_filter_t *)p_this;
184 aout_filter_sys_t *p_sys = p_filter->p_sys;
185 SpatClean( p_filter );
186 delete p_sys->p_reverbm;
187 vlc_mutex_destroy( &p_sys->lock );
189 msg_Dbg(p_this, "Closing filter spatializer %s %s %d", __FILE__,__func__,__LINE__);
192 /*****************************************************************************
193 * DoWork: process samples buffer
194 *****************************************************************************/
195 static void DoWork( aout_instance_t * p_aout, aout_filter_t * p_filter,
196 aout_buffer_t * p_in_buf, aout_buffer_t * p_out_buf )
198 p_out_buf->i_nb_samples = p_in_buf->i_nb_samples;
199 p_out_buf->i_nb_bytes = p_in_buf->i_nb_bytes;
201 SpatFilter( p_aout, p_filter, (float*)p_out_buf->p_buffer,
202 (float*)p_in_buf->p_buffer, p_in_buf->i_nb_samples,
203 aout_FormatNbChannels( &p_filter->input ) );
206 static int SpatInit( aout_filter_t *p_filter )
208 aout_filter_sys_t *p_sys = p_filter->p_sys;
210 vlc_value_t val1, val2, val3, val4, val5;
211 aout_instance_t *p_aout = (aout_instance_t *)p_filter->p_parent;
213 for( i = 0; i < 5 ; i ++ )
214 var_Create( p_aout, psz_control_names[i], VLC_VAR_FLOAT
215 | VLC_VAR_DOINHERIT | VLC_VAR_ISCOMMAND );
217 /* Get initial values */
218 var_Get( p_aout, psz_control_names[0], &val1 );
219 var_Get( p_aout, psz_control_names[1], &val2 );
220 var_Get( p_aout, psz_control_names[2], &val3 );
221 var_Get( p_aout, psz_control_names[3], &val4 );
222 var_Get( p_aout, psz_control_names[4], &val5);
224 RoomCallback( VLC_OBJECT( p_aout ), NULL, val1, val1, p_sys );
225 WidthCallback( VLC_OBJECT( p_aout ), NULL, val2, val2, p_sys );
226 WetCallback( VLC_OBJECT( p_aout ), NULL, val3, val3, p_sys );
227 DryCallback( VLC_OBJECT( p_aout ), NULL, val4, val4, p_sys );
228 DampCallback( VLC_OBJECT( p_aout ), NULL, val5, val5, p_sys );
230 msg_Dbg( p_filter, "%f", val1.f_float );
231 /* Add our own callbacks */
232 var_AddCallback( p_aout, psz_control_names[0], RoomCallback, p_sys );
233 var_AddCallback( p_aout, psz_control_names[1], WidthCallback, p_sys );
234 var_AddCallback( p_aout, psz_control_names[2], WetCallback, p_sys );
235 var_AddCallback( p_aout, psz_control_names[3], DryCallback, p_sys );
236 var_AddCallback( p_aout, psz_control_names[4], DampCallback, p_sys );
241 static void SpatFilter( aout_instance_t *p_aout,
242 aout_filter_t *p_filter, float *out, float *in,
243 int i_samples, int i_channels )
245 aout_filter_sys_t *p_sys = p_filter->p_sys;
246 CLocker locker( &p_sys->lock );
249 for( i = 0; i < i_samples; i++ )
251 for( ch = 0 ; ch < 2; ch++)
253 in[ch] = in[ch] * SPAT_AMP;
255 p_sys->p_reverbm->processreplace( in, out , 1, i_channels);
261 static void SpatClean( aout_filter_t *p_filter )
263 aout_instance_t *p_aout = (aout_instance_t *)p_filter->p_parent;
264 aout_filter_sys_t *p_sys = p_filter->p_sys;
266 var_DelCallback( p_aout, psz_control_names[0], RoomCallback, p_sys );
267 var_DelCallback( p_aout, psz_control_names[1], WidthCallback, p_sys );
268 var_DelCallback( p_aout, psz_control_names[2], WetCallback, p_sys );
269 var_DelCallback( p_aout, psz_control_names[3], DryCallback, p_sys );
270 var_DelCallback( p_aout, psz_control_names[4], DampCallback, p_sys );
273 /*****************************************************************************
274 * Variables callbacks
275 *****************************************************************************/
277 static int RoomCallback( vlc_object_t *p_this, char const *psz_cmd,
278 vlc_value_t oldval, vlc_value_t newval, void *p_data )
280 aout_filter_sys_t *p_sys = (aout_filter_sys_t*)p_data;
281 CLocker locker( &p_sys->lock );
283 p_sys->p_reverbm->setroomsize(newval.f_float);
284 msg_Dbg (p_this,"room callback %3.1f %s %s %d", newval.f_float, __FILE__,__func__,__LINE__);
288 static int WidthCallback( vlc_object_t *p_this, char const *psz_cmd,
289 vlc_value_t oldval, vlc_value_t newval, void *p_data )
291 aout_filter_sys_t *p_sys = (aout_filter_sys_t*)p_data;
292 CLocker locker( &p_sys->lock );
294 p_sys->p_reverbm->setwidth(newval.f_float);
295 msg_Dbg (p_this,"width callback %3.1f %s %s %d", newval.f_float, __FILE__,__func__,__LINE__);
298 static int WetCallback( vlc_object_t *p_this, char const *psz_cmd,
299 vlc_value_t oldval, vlc_value_t newval, void *p_data )
301 aout_filter_sys_t *p_sys = (aout_filter_sys_t*)p_data;
302 CLocker locker( &p_sys->lock );
304 p_sys->p_reverbm->setwet(newval.f_float);
305 msg_Dbg (p_this,"wet callback %3.1f %s %s %d", newval.f_float, __FILE__,__func__,__LINE__);
308 static int DryCallback( vlc_object_t *p_this, char const *psz_cmd,
309 vlc_value_t oldval, vlc_value_t newval, void *p_data )
311 aout_filter_sys_t *p_sys = (aout_filter_sys_t*)p_data;
312 CLocker locker( &p_sys->lock );
314 p_sys->p_reverbm->setdry(newval.f_float);
315 msg_Dbg (p_this,"dry callback %3.1f %s %s %d", newval.f_float, __FILE__,__func__,__LINE__);
318 static int DampCallback( vlc_object_t *p_this, char const *psz_cmd,
319 vlc_value_t oldval, vlc_value_t newval, void *p_data )
321 aout_filter_sys_t *p_sys = (aout_filter_sys_t*)p_data;
322 CLocker locker( &p_sys->lock );
324 p_sys->p_reverbm->setdamp(newval.f_float);
325 msg_Dbg (p_this, "damp callback %3.1f %s %s %d", newval.f_float, __FILE__,__func__,__LINE__);