1 /*****************************************************************************
2 * goom.c: based on libgoom (see http://ios.free.fr/?page=projet&quoi=1)
3 *****************************************************************************
4 * Copyright (C) 2003 the VideoLAN team
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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
28 #include <string.h> /* strdup() */
34 #include <vlc_block.h>
35 #include <vlc_input.h>
39 # include "goom_core.h"
40 # define PluginInfo void
41 # define goom_update(a,b,c,d,e,f) goom_update(b,c,d,e,f)
42 # define goom_close(a) goom_close()
43 # define goom_init(a,b) NULL; goom_init(a,b,0); goom_set_font(0,0,0)
48 # include <goom/goom.h>
51 /*****************************************************************************
53 *****************************************************************************/
54 static int Open ( vlc_object_t * );
55 static void Close ( vlc_object_t * );
57 #define WIDTH_TEXT N_("Goom display width")
58 #define HEIGHT_TEXT N_("Goom display height")
59 #define RES_LONGTEXT N_("This allows you to set the resolution of the " \
60 "Goom display (bigger resolution will be prettier but more CPU intensive).")
62 #define SPEED_TEXT N_("Goom animation speed")
63 #define SPEED_LONGTEXT N_("This allows you to set the animation speed " \
64 "(between 1 and 10, defaults to 6).")
69 set_shortname( _("Goom"));
70 set_description( _("Goom effect") );
71 set_category( CAT_AUDIO );
72 set_subcategory( SUBCAT_AUDIO_VISUAL );
73 set_capability( "visualization", 0 );
74 add_integer( "goom-width", 320, NULL,
75 WIDTH_TEXT, RES_LONGTEXT, VLC_FALSE );
76 add_integer( "goom-height", 240, NULL,
77 HEIGHT_TEXT, RES_LONGTEXT, VLC_FALSE );
78 add_integer( "goom-speed", 6, NULL,
79 SPEED_TEXT, SPEED_LONGTEXT, VLC_FALSE );
80 set_callbacks( Open, Close );
81 add_shortcut( "goom" );
84 /*****************************************************************************
86 *****************************************************************************/
87 #define MAX_BLOCKS 100
88 #define GOOM_DELAY 400000
93 vout_thread_t *p_vout;
100 /* Audio properties */
103 /* Audio samples queue */
104 block_t *pp_blocks[MAX_BLOCKS];
111 typedef struct aout_filter_sys_t
113 goom_thread_t *p_thread;
117 static void DoWork ( aout_instance_t *, aout_filter_t *, aout_buffer_t *,
120 static void Thread ( vlc_object_t * );
122 static char *TitleGet( vlc_object_t * );
124 /*****************************************************************************
125 * Open: open a scope effect plugin
126 *****************************************************************************/
127 static int Open( vlc_object_t *p_this )
129 aout_filter_t *p_filter = (aout_filter_t *)p_this;
130 aout_filter_sys_t *p_sys;
131 goom_thread_t *p_thread;
132 vlc_value_t width, height;
136 if ( p_filter->input.i_format != VLC_FOURCC('f','l','3','2' )
137 || p_filter->output.i_format != VLC_FOURCC('f','l','3','2') )
139 msg_Warn( p_filter, "bad input or output format" );
142 if ( !AOUT_FMTS_SIMILAR( &p_filter->input, &p_filter->output ) )
144 msg_Warn( p_filter, "input and output formats are not similar" );
148 p_filter->pf_do_work = DoWork;
149 p_filter->b_in_place = 1;
151 /* Allocate structure */
152 p_sys = p_filter->p_sys = malloc( sizeof( aout_filter_sys_t ) );
154 /* Create goom thread */
155 p_sys->p_thread = p_thread =
156 vlc_object_create( p_filter, sizeof( goom_thread_t ) );
157 vlc_object_attach( p_thread, p_this );
159 var_Create( p_thread, "goom-width", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
160 var_Get( p_thread, "goom-width", &width );
161 var_Create( p_thread, "goom-height", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
162 var_Get( p_thread, "goom-height", &height );
164 memset( &fmt, 0, sizeof(video_format_t) );
166 fmt.i_width = fmt.i_visible_width = width.i_int;
167 fmt.i_height = fmt.i_visible_height = height.i_int;
168 fmt.i_chroma = VLC_FOURCC('R','V','3','2');
169 fmt.i_aspect = VOUT_ASPECT_FACTOR * width.i_int/height.i_int;
170 fmt.i_sar_num = fmt.i_sar_den = 1;
172 p_thread->p_vout = vout_Request( p_filter, NULL, &fmt );
173 if( p_thread->p_vout == NULL )
175 msg_Err( p_filter, "no suitable vout module" );
176 vlc_object_detach( p_thread );
177 vlc_object_destroy( p_thread );
181 vlc_mutex_init( p_filter, &p_thread->lock );
182 vlc_cond_init( p_filter, &p_thread->wait );
184 p_thread->i_blocks = 0;
185 aout_DateInit( &p_thread->date, p_filter->output.i_rate );
186 aout_DateSet( &p_thread->date, 0 );
187 p_thread->i_channels = aout_FormatNbChannels( &p_filter->input );
189 p_thread->psz_title = TitleGet( VLC_OBJECT( p_filter ) );
191 if( vlc_thread_create( p_thread, "Goom Update Thread", Thread,
192 VLC_THREAD_PRIORITY_LOW, VLC_FALSE ) )
194 msg_Err( p_filter, "cannot lauch goom thread" );
195 vout_Destroy( p_thread->p_vout );
196 vlc_mutex_destroy( &p_thread->lock );
197 vlc_cond_destroy( &p_thread->wait );
198 if( p_thread->psz_title ) free( p_thread->psz_title );
199 vlc_object_detach( p_thread );
200 vlc_object_destroy( p_thread );
208 /*****************************************************************************
209 * DoWork: process samples buffer
210 *****************************************************************************
211 * This function queues the audio buffer to be processed by the goom thread
212 *****************************************************************************/
213 static void DoWork( aout_instance_t * p_aout, aout_filter_t * p_filter,
214 aout_buffer_t * p_in_buf, aout_buffer_t * p_out_buf )
216 aout_filter_sys_t *p_sys = p_filter->p_sys;
219 p_out_buf->i_nb_samples = p_in_buf->i_nb_samples;
220 p_out_buf->i_nb_bytes = p_in_buf->i_nb_bytes;
223 vlc_mutex_lock( &p_sys->p_thread->lock );
224 if( p_sys->p_thread->i_blocks == MAX_BLOCKS )
226 vlc_mutex_unlock( &p_sys->p_thread->lock );
230 p_block = block_New( p_sys->p_thread, p_in_buf->i_nb_bytes );
231 if( !p_block ) return;
232 memcpy( p_block->p_buffer, p_in_buf->p_buffer, p_in_buf->i_nb_bytes );
233 p_block->i_pts = p_in_buf->start_date;
235 p_sys->p_thread->pp_blocks[p_sys->p_thread->i_blocks++] = p_block;
237 vlc_cond_signal( &p_sys->p_thread->wait );
238 vlc_mutex_unlock( &p_sys->p_thread->lock );
241 /*****************************************************************************
242 * float to s16 conversion
243 *****************************************************************************/
244 static inline int16_t FloatToInt16( float f )
251 return (int16_t)( f * 32768.0 );
254 /*****************************************************************************
256 *****************************************************************************/
257 static int FillBuffer( int16_t *p_data, int *pi_data,
258 audio_date_t *pi_date, audio_date_t *pi_date_end,
259 goom_thread_t *p_this )
264 while( *pi_data < 512 )
266 if( !p_this->i_blocks ) return VLC_EGENERIC;
268 p_block = p_this->pp_blocks[0];
269 i_samples = __MIN( 512 - *pi_data, p_block->i_buffer /
270 sizeof(float) / p_this->i_channels );
272 /* Date management */
273 if( p_block->i_pts > 0 &&
274 p_block->i_pts != aout_DateGet( pi_date_end ) )
276 aout_DateSet( pi_date_end, p_block->i_pts );
280 aout_DateIncrement( pi_date_end, i_samples );
282 while( i_samples > 0 )
284 float *p_float = (float *)p_block->p_buffer;
286 p_data[*pi_data] = FloatToInt16( p_float[0] );
287 if( p_this->i_channels > 1 )
288 p_data[512 + *pi_data] = FloatToInt16( p_float[1] );
291 p_block->p_buffer += (sizeof(float) * p_this->i_channels);
292 p_block->i_buffer -= (sizeof(float) * p_this->i_channels);
296 if( !p_block->i_buffer )
298 block_Release( p_block );
300 if( p_this->i_blocks )
301 memmove( p_this->pp_blocks, p_this->pp_blocks + 1,
302 p_this->i_blocks * sizeof(block_t *) );
306 *pi_date = *pi_date_end;
311 /*****************************************************************************
313 *****************************************************************************/
314 static void Thread( vlc_object_t *p_this )
316 goom_thread_t *p_thread = (goom_thread_t*)p_this;
317 vlc_value_t width, height, speed;
319 int16_t p_data[2][512];
320 int i_data = 0, i_count = 0;
321 PluginInfo *p_plugin_info;
323 var_Get( p_this, "goom-width", &width );
324 var_Get( p_this, "goom-height", &height );
326 var_Create( p_thread, "goom-speed", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
327 var_Get( p_thread, "goom-speed", &speed );
328 speed.i_int = MAX_SPEED - speed.i_int;
329 if( speed.i_int < 0 ) speed.i_int = 0;
331 p_plugin_info = goom_init( width.i_int, height.i_int );
333 while( !p_thread->b_die )
338 /* goom_update is damn slow, so just copy data and release the lock */
339 vlc_mutex_lock( &p_thread->lock );
340 if( FillBuffer( (int16_t *)p_data, &i_data, &i_pts,
341 &p_thread->date, p_thread ) != VLC_SUCCESS )
342 vlc_cond_wait( &p_thread->wait, &p_thread->lock );
343 vlc_mutex_unlock( &p_thread->lock );
345 /* Speed selection */
346 if( speed.i_int && (++i_count % (speed.i_int+1)) ) continue;
348 /* Frame dropping if necessary */
349 if( aout_DateGet( &i_pts ) + GOOM_DELAY <= mdate() ) continue;
351 plane = goom_update( p_plugin_info, p_data, 0, 0.0,
352 p_thread->psz_title, NULL );
354 if( p_thread->psz_title )
356 free( p_thread->psz_title );
357 p_thread->psz_title = NULL;
360 while( !( p_pic = vout_CreatePicture( p_thread->p_vout, 0, 0, 0 ) ) &&
363 msleep( VOUT_OUTMEM_SLEEP );
366 if( p_pic == NULL ) break;
368 memcpy( p_pic->p[0].p_pixels, plane, width.i_int * height.i_int * 4 );
369 vout_DatePicture( p_thread->p_vout, p_pic,
370 aout_DateGet( &i_pts ) + GOOM_DELAY );
371 vout_DisplayPicture( p_thread->p_vout, p_pic );
374 goom_close( p_plugin_info );
377 /*****************************************************************************
378 * Close: close the plugin
379 *****************************************************************************/
380 static void Close( vlc_object_t *p_this )
382 aout_filter_t *p_filter = (aout_filter_t *)p_this;
383 aout_filter_sys_t *p_sys = p_filter->p_sys;
385 /* Stop Goom Thread */
386 vlc_object_kill( p_sys->p_thread );
388 vlc_mutex_lock( &p_sys->p_thread->lock );
389 vlc_cond_signal( &p_sys->p_thread->wait );
390 vlc_mutex_unlock( &p_sys->p_thread->lock );
392 vlc_thread_join( p_sys->p_thread );
395 vout_Request( p_filter, p_sys->p_thread->p_vout, 0 );
396 vlc_mutex_destroy( &p_sys->p_thread->lock );
397 vlc_cond_destroy( &p_sys->p_thread->wait );
398 vlc_object_detach( p_sys->p_thread );
400 while( p_sys->p_thread->i_blocks-- )
402 block_Release( p_sys->p_thread->pp_blocks[p_sys->p_thread->i_blocks] );
405 vlc_object_destroy( p_sys->p_thread );
410 static char *TitleGet( vlc_object_t *p_this )
412 char *psz_title = NULL;
413 input_thread_t *p_input =
414 vlc_object_find( p_this, VLC_OBJECT_INPUT, FIND_ANYWHERE );
418 psz_title = strdup( input_item_GetTitle( input_GetItem( p_input ) ) );
419 if( EMPTY_STR( psz_title ) )
422 char *psz = strrchr( input_GetItem(p_input)->psz_uri, '/' );
430 psz = input_GetItem(p_input)->psz_uri;
434 psz_title = strdup( psz );
437 vlc_object_release( p_input );