1 /*****************************************************************************
2 * goom.c: based on libgoom (see http://ios.free.fr/?page=projet&quoi=1)
3 *****************************************************************************
4 * Copyright (C) 2003 VideoLAN
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Gildas Bazin <gbazin@videolan.org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
28 #include <stdlib.h> /* malloc(), free() */
29 #include <string.h> /* strdup() */
33 #include <vlc/input.h>
36 #include "aout_internal.h"
40 # include "goom_core.h"
41 # define PluginInfo void
42 # define goom_update(a,b,c,d,e,f) goom_update(b,c,d,e,f)
43 # define goom_close(a) goom_close()
44 # define goom_init(a,b) NULL; goom_init(a,b,0); goom_set_font(0,0,0)
49 # include <goom/goom.h>
52 /*****************************************************************************
54 *****************************************************************************/
55 static int Open ( vlc_object_t * );
56 static void Close ( vlc_object_t * );
58 #define WIDTH_TEXT N_("Goom display width")
59 #define HEIGHT_TEXT N_("Goom display height")
60 #define RES_LONGTEXT N_("Allows you to change the resolution of the " \
61 "Goom display (bigger resolution will be prettier but more CPU intensive).")
63 #define SPEED_TEXT N_("Goom animation speed")
64 #define SPEED_LONGTEXT N_("Allows you to reduce the speed of the animation " \
65 "(default 6, max 10).")
70 set_description( _("Goom effect") );
71 set_capability( "audio filter", 0 );
72 add_integer( "goom-width", 320, NULL,
73 WIDTH_TEXT, RES_LONGTEXT, VLC_FALSE );
74 add_integer( "goom-height", 240, NULL,
75 HEIGHT_TEXT, RES_LONGTEXT, VLC_FALSE );
76 add_integer( "goom-speed", 6, NULL,
77 SPEED_TEXT, SPEED_LONGTEXT, VLC_FALSE );
78 set_callbacks( Open, Close );
79 add_shortcut( "goom" );
82 /*****************************************************************************
84 *****************************************************************************/
86 #define GOOM_DELAY 400000
91 vout_thread_t *p_vout;
98 /* Audio properties */
101 /* Audio samples queue */
102 block_t *pp_blocks[MAX_BLOCKS];
109 typedef struct aout_filter_sys_t
111 goom_thread_t *p_thread;
115 static void DoWork ( aout_instance_t *, aout_filter_t *, aout_buffer_t *,
118 static void Thread ( vlc_object_t * );
120 static char *TitleGet( vlc_object_t * );
122 /*****************************************************************************
123 * Open: open a scope effect plugin
124 *****************************************************************************/
125 static int Open( vlc_object_t *p_this )
127 aout_filter_t *p_filter = (aout_filter_t *)p_this;
128 aout_filter_sys_t *p_sys;
129 goom_thread_t *p_thread;
130 vlc_value_t width, height;
132 if ( p_filter->input.i_format != VLC_FOURCC('f','l','3','2' )
133 || p_filter->output.i_format != VLC_FOURCC('f','l','3','2') )
135 msg_Warn( p_filter, "Bad input or output format" );
138 if ( !AOUT_FMTS_SIMILAR( &p_filter->input, &p_filter->output ) )
140 msg_Warn( p_filter, "input and output formats are not similar" );
144 p_filter->pf_do_work = DoWork;
145 p_filter->b_in_place = 1;
147 /* Allocate structure */
148 p_sys = p_filter->p_sys = malloc( sizeof( aout_filter_sys_t ) );
150 /* Create goom thread */
151 p_sys->p_thread = p_thread =
152 vlc_object_create( p_filter, sizeof( goom_thread_t ) );
153 vlc_object_attach( p_thread, p_this );
155 var_Create( p_thread, "goom-width", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
156 var_Get( p_thread, "goom-width", &width );
157 var_Create( p_thread, "goom-height", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
158 var_Get( p_thread, "goom-height", &height );
161 vout_Request( p_filter, NULL, width.i_int, height.i_int,
162 VLC_FOURCC('R','V','3','2'),
163 VOUT_ASPECT_FACTOR * width.i_int/height.i_int );
164 if( p_thread->p_vout == NULL )
166 msg_Err( p_filter, "no suitable vout module" );
167 vlc_object_detach( p_thread );
168 vlc_object_destroy( p_thread );
172 vlc_mutex_init( p_filter, &p_thread->lock );
173 vlc_cond_init( p_filter, &p_thread->wait );
175 p_thread->i_blocks = 0;
176 aout_DateInit( &p_thread->date, p_filter->output.i_rate );
177 aout_DateSet( &p_thread->date, 0 );
178 p_thread->i_channels = aout_FormatNbChannels( &p_filter->input );
180 p_thread->psz_title = TitleGet( VLC_OBJECT( p_filter ) );
182 if( vlc_thread_create( p_thread, "Goom Update Thread", Thread,
183 VLC_THREAD_PRIORITY_LOW, VLC_FALSE ) )
185 msg_Err( p_filter, "cannot lauch goom thread" );
186 vout_Destroy( p_thread->p_vout );
187 vlc_mutex_destroy( &p_thread->lock );
188 vlc_cond_destroy( &p_thread->wait );
189 if( p_thread->psz_title ) free( p_thread->psz_title );
190 vlc_object_detach( p_thread );
191 vlc_object_destroy( p_thread );
199 /*****************************************************************************
200 * DoWork: process samples buffer
201 *****************************************************************************
202 * This function queues the audio buffer to be processed by the goom thread
203 *****************************************************************************/
204 static void DoWork( aout_instance_t * p_aout, aout_filter_t * p_filter,
205 aout_buffer_t * p_in_buf, aout_buffer_t * p_out_buf )
207 aout_filter_sys_t *p_sys = p_filter->p_sys;
210 p_out_buf->i_nb_samples = p_in_buf->i_nb_samples;
211 p_out_buf->i_nb_bytes = p_in_buf->i_nb_bytes;
214 vlc_mutex_lock( &p_sys->p_thread->lock );
215 if( p_sys->p_thread->i_blocks == MAX_BLOCKS )
217 vlc_mutex_unlock( &p_sys->p_thread->lock );
221 p_block = block_New( p_sys->p_thread, p_in_buf->i_nb_bytes );
222 if( !p_block ) return;
223 memcpy( p_block->p_buffer, p_in_buf->p_buffer, p_in_buf->i_nb_bytes );
224 p_block->i_pts = p_in_buf->start_date;
226 p_sys->p_thread->pp_blocks[p_sys->p_thread->i_blocks++] = p_block;
228 vlc_cond_signal( &p_sys->p_thread->wait );
229 vlc_mutex_unlock( &p_sys->p_thread->lock );
232 /*****************************************************************************
233 * float to s16 conversion
234 *****************************************************************************/
235 static inline int16_t FloatToInt16( float f )
242 return (int16_t)( f * 32768.0 );
245 /*****************************************************************************
247 *****************************************************************************/
248 static int FillBuffer( int16_t *p_data, int *pi_data,
249 audio_date_t *pi_date, audio_date_t *pi_date_end,
250 goom_thread_t *p_this )
255 while( *pi_data < 512 )
257 if( !p_this->i_blocks ) return VLC_EGENERIC;
259 p_block = p_this->pp_blocks[0];
260 i_samples = __MIN( 512 - *pi_data, p_block->i_buffer /
261 sizeof(float) / p_this->i_channels );
263 /* Date management */
264 if( p_block->i_pts > 0 &&
265 p_block->i_pts != aout_DateGet( pi_date_end ) )
267 aout_DateSet( pi_date_end, p_block->i_pts );
271 aout_DateIncrement( pi_date_end, i_samples );
273 while( i_samples > 0 )
275 float *p_float = (float *)p_block->p_buffer;
277 p_data[*pi_data] = FloatToInt16( p_float[0] );
278 if( p_this->i_channels > 1 )
279 p_data[512 + *pi_data] = FloatToInt16( p_float[1] );
282 p_block->p_buffer += (sizeof(float) * p_this->i_channels);
283 p_block->i_buffer -= (sizeof(float) * p_this->i_channels);
287 if( !p_block->i_buffer )
289 block_Release( p_block );
291 if( p_this->i_blocks )
292 memmove( p_this->pp_blocks, p_this->pp_blocks + 1,
293 p_this->i_blocks * sizeof(block_t *) );
297 *pi_date = *pi_date_end;
302 /*****************************************************************************
304 *****************************************************************************/
305 static void Thread( vlc_object_t *p_this )
307 goom_thread_t *p_thread = (goom_thread_t*)p_this;
308 vlc_value_t width, height, speed;
310 int16_t p_data[2][512];
311 int i_data = 0, i_count = 0;
312 PluginInfo *p_plugin_info;
314 var_Get( p_this, "goom-width", &width );
315 var_Get( p_this, "goom-height", &height );
317 var_Create( p_thread, "goom-speed", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
318 var_Get( p_thread, "goom-speed", &speed );
319 speed.i_int = MAX_SPEED - speed.i_int;
320 if( speed.i_int < 0 ) speed.i_int = 0;
322 p_plugin_info = goom_init( width.i_int, height.i_int );
324 while( !p_thread->b_die )
329 /* goom_update is damn slow, so just copy data and release the lock */
330 vlc_mutex_lock( &p_thread->lock );
331 if( FillBuffer( (int16_t *)p_data, &i_data, &i_pts,
332 &p_thread->date, p_thread ) != VLC_SUCCESS )
333 vlc_cond_wait( &p_thread->wait, &p_thread->lock );
334 vlc_mutex_unlock( &p_thread->lock );
336 /* Speed selection */
337 if( speed.i_int && (++i_count % (speed.i_int+1)) ) continue;
339 /* Frame dropping if necessary */
340 if( aout_DateGet( &i_pts ) + GOOM_DELAY <= mdate() ) continue;
342 plane = goom_update( p_plugin_info, p_data, 0, 0.0,
343 p_thread->psz_title, NULL );
345 if( p_thread->psz_title )
347 free( p_thread->psz_title );
348 p_thread->psz_title = NULL;
351 while( !( p_pic = vout_CreatePicture( p_thread->p_vout, 0, 0, 0 ) ) &&
354 msleep( VOUT_OUTMEM_SLEEP );
357 if( p_pic == NULL ) break;
359 memcpy( p_pic->p[0].p_pixels, plane, width.i_int * height.i_int * 4 );
360 vout_DatePicture( p_thread->p_vout, p_pic,
361 aout_DateGet( &i_pts ) + GOOM_DELAY );
362 vout_DisplayPicture( p_thread->p_vout, p_pic );
365 goom_close( p_plugin_info );
368 /*****************************************************************************
369 * Close: close the plugin
370 *****************************************************************************/
371 static void Close( vlc_object_t *p_this )
373 aout_filter_t *p_filter = (aout_filter_t *)p_this;
374 aout_filter_sys_t *p_sys = p_filter->p_sys;
376 /* Stop Goom Thread */
377 p_sys->p_thread->b_die = VLC_TRUE;
379 vlc_mutex_lock( &p_sys->p_thread->lock );
380 vlc_cond_signal( &p_sys->p_thread->wait );
381 vlc_mutex_unlock( &p_sys->p_thread->lock );
383 vlc_thread_join( p_sys->p_thread );
386 vout_Request( p_filter, p_sys->p_thread->p_vout, 0, 0, 0, 0 );
387 vlc_mutex_destroy( &p_sys->p_thread->lock );
388 vlc_cond_destroy( &p_sys->p_thread->wait );
389 vlc_object_detach( p_sys->p_thread );
391 while( p_sys->p_thread->i_blocks-- )
393 block_Release( p_sys->p_thread->pp_blocks[p_sys->p_thread->i_blocks] );
396 vlc_object_destroy( p_sys->p_thread );
401 static char *TitleGet( vlc_object_t *p_this )
403 char *psz_title = NULL;
404 input_thread_t *p_input =
405 vlc_object_find( p_this, VLC_OBJECT_INPUT, FIND_ANYWHERE );
409 char *psz = strrchr( p_input->input.p_item->psz_uri, '/' );
417 psz = p_input->input.p_item->psz_uri;
421 psz_title = strdup( psz );
423 vlc_object_release( p_input );