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 *****************************************************************************/
34 #include <vlc_common.h>
35 #include <vlc_plugin.h>
38 #include <vlc_block.h>
39 #include <vlc_input.h>
43 # include "goom_core.h"
44 # define PluginInfo void
45 # define goom_update(a,b,c,d,e,f) goom_update(b,c,d,e,f)
46 # define goom_close(a) goom_close()
47 # define goom_init(a,b) NULL; goom_init(a,b,0); goom_set_font(0,0,0)
52 # include <goom/goom.h>
55 /*****************************************************************************
57 *****************************************************************************/
58 static int Open ( vlc_object_t * );
59 static void Close ( vlc_object_t * );
61 #define WIDTH_TEXT N_("Goom display width")
62 #define HEIGHT_TEXT N_("Goom display height")
63 #define RES_LONGTEXT N_("This allows you to set the resolution of the " \
64 "Goom display (bigger resolution will be prettier but more CPU intensive).")
66 #define SPEED_TEXT N_("Goom animation speed")
67 #define SPEED_LONGTEXT N_("This allows you to set the animation speed " \
68 "(between 1 and 10, defaults to 6).")
73 set_shortname( N_("Goom"))
74 set_description( N_("Goom effect") )
75 set_category( CAT_AUDIO )
76 set_subcategory( SUBCAT_AUDIO_VISUAL )
77 set_capability( "visualization", 0 )
78 add_integer( "goom-width", 320, NULL,
79 WIDTH_TEXT, RES_LONGTEXT, false );
80 add_integer( "goom-height", 240, NULL,
81 HEIGHT_TEXT, RES_LONGTEXT, false );
82 add_integer( "goom-speed", 6, NULL,
83 SPEED_TEXT, SPEED_LONGTEXT, false );
84 set_callbacks( Open, Close )
85 add_shortcut( "goom" )
88 /*****************************************************************************
90 *****************************************************************************/
91 #define MAX_BLOCKS 100
92 #define GOOM_DELAY 400000
97 vout_thread_t *p_vout;
104 /* Audio properties */
107 /* Audio samples queue */
108 block_t *pp_blocks[MAX_BLOCKS];
115 typedef struct aout_filter_sys_t
117 goom_thread_t *p_thread;
121 static void DoWork ( aout_instance_t *, aout_filter_t *, aout_buffer_t *,
124 static void* Thread ( vlc_object_t * );
126 static char *TitleGet( vlc_object_t * );
128 /*****************************************************************************
129 * Open: open a scope effect plugin
130 *****************************************************************************/
131 static int Open( vlc_object_t *p_this )
133 aout_filter_t *p_filter = (aout_filter_t *)p_this;
134 aout_filter_sys_t *p_sys;
135 goom_thread_t *p_thread;
136 vlc_value_t width, height;
140 if ( p_filter->input.i_format != VLC_FOURCC('f','l','3','2' )
141 || p_filter->output.i_format != VLC_FOURCC('f','l','3','2') )
143 msg_Warn( p_filter, "bad input or output format" );
146 if ( !AOUT_FMTS_SIMILAR( &p_filter->input, &p_filter->output ) )
148 msg_Warn( p_filter, "input and output formats are not similar" );
152 p_filter->pf_do_work = DoWork;
153 p_filter->b_in_place = 1;
155 /* Allocate structure */
156 p_sys = p_filter->p_sys = malloc( sizeof( aout_filter_sys_t ) );
158 /* Create goom thread */
159 p_sys->p_thread = p_thread =
160 vlc_object_create( p_filter, sizeof( goom_thread_t ) );
161 vlc_object_attach( p_thread, p_this );
163 var_Create( p_thread, "goom-width", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
164 var_Get( p_thread, "goom-width", &width );
165 var_Create( p_thread, "goom-height", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
166 var_Get( p_thread, "goom-height", &height );
168 memset( &fmt, 0, sizeof(video_format_t) );
170 fmt.i_width = fmt.i_visible_width = width.i_int;
171 fmt.i_height = fmt.i_visible_height = height.i_int;
172 fmt.i_chroma = VLC_FOURCC('R','V','3','2');
173 fmt.i_aspect = VOUT_ASPECT_FACTOR * width.i_int/height.i_int;
174 fmt.i_sar_num = fmt.i_sar_den = 1;
176 p_thread->p_vout = vout_Request( p_filter, NULL, &fmt );
177 if( p_thread->p_vout == NULL )
179 msg_Err( p_filter, "no suitable vout module" );
180 vlc_object_detach( p_thread );
181 vlc_object_release( p_thread );
185 vlc_mutex_init( &p_thread->lock );
186 vlc_cond_init( &p_thread->wait );
188 p_thread->i_blocks = 0;
189 aout_DateInit( &p_thread->date, p_filter->output.i_rate );
190 aout_DateSet( &p_thread->date, 0 );
191 p_thread->i_channels = aout_FormatNbChannels( &p_filter->input );
193 p_thread->psz_title = TitleGet( VLC_OBJECT( p_filter ) );
195 if( vlc_thread_create( p_thread, "Goom Update Thread", Thread,
196 VLC_THREAD_PRIORITY_LOW, false ) )
198 msg_Err( p_filter, "cannot lauch goom thread" );
199 vlc_object_release( p_thread->p_vout );
200 vlc_mutex_destroy( &p_thread->lock );
201 vlc_cond_destroy( &p_thread->wait );
202 free( p_thread->psz_title );
203 vlc_object_detach( p_thread );
204 vlc_object_release( p_thread );
212 /*****************************************************************************
213 * DoWork: process samples buffer
214 *****************************************************************************
215 * This function queues the audio buffer to be processed by the goom thread
216 *****************************************************************************/
217 static void DoWork( aout_instance_t * p_aout, aout_filter_t * p_filter,
218 aout_buffer_t * p_in_buf, aout_buffer_t * p_out_buf )
220 VLC_UNUSED( p_aout );
222 aout_filter_sys_t *p_sys = p_filter->p_sys;
225 p_out_buf->i_nb_samples = p_in_buf->i_nb_samples;
226 p_out_buf->i_nb_bytes = p_in_buf->i_nb_bytes;
229 vlc_mutex_lock( &p_sys->p_thread->lock );
230 if( p_sys->p_thread->i_blocks == MAX_BLOCKS )
232 vlc_mutex_unlock( &p_sys->p_thread->lock );
236 p_block = block_New( p_sys->p_thread, p_in_buf->i_nb_bytes );
239 vlc_mutex_unlock( &p_sys->p_thread->lock );
242 memcpy( p_block->p_buffer, p_in_buf->p_buffer, p_in_buf->i_nb_bytes );
243 p_block->i_pts = p_in_buf->start_date;
245 p_sys->p_thread->pp_blocks[p_sys->p_thread->i_blocks++] = p_block;
247 vlc_cond_signal( &p_sys->p_thread->wait );
248 vlc_mutex_unlock( &p_sys->p_thread->lock );
251 /*****************************************************************************
252 * float to s16 conversion
253 *****************************************************************************/
254 static inline int16_t FloatToInt16( float f )
261 return (int16_t)( f * 32768.0 );
264 /*****************************************************************************
266 *****************************************************************************/
267 static int FillBuffer( int16_t *p_data, int *pi_data,
268 audio_date_t *pi_date, audio_date_t *pi_date_end,
269 goom_thread_t *p_this )
274 while( *pi_data < 512 )
276 if( !p_this->i_blocks ) return VLC_EGENERIC;
278 p_block = p_this->pp_blocks[0];
279 i_samples = __MIN( 512 - *pi_data, p_block->i_buffer /
280 sizeof(float) / p_this->i_channels );
282 /* Date management */
283 if( p_block->i_pts > 0 &&
284 p_block->i_pts != aout_DateGet( pi_date_end ) )
286 aout_DateSet( pi_date_end, p_block->i_pts );
290 aout_DateIncrement( pi_date_end, i_samples );
292 while( i_samples > 0 )
294 float *p_float = (float *)p_block->p_buffer;
296 p_data[*pi_data] = FloatToInt16( p_float[0] );
297 if( p_this->i_channels > 1 )
298 p_data[512 + *pi_data] = FloatToInt16( p_float[1] );
301 p_block->p_buffer += (sizeof(float) * p_this->i_channels);
302 p_block->i_buffer -= (sizeof(float) * p_this->i_channels);
306 if( !p_block->i_buffer )
308 block_Release( p_block );
310 if( p_this->i_blocks )
311 memmove( p_this->pp_blocks, p_this->pp_blocks + 1,
312 p_this->i_blocks * sizeof(block_t *) );
316 *pi_date = *pi_date_end;
321 /*****************************************************************************
323 *****************************************************************************/
324 static void* Thread( vlc_object_t *p_this )
326 goom_thread_t *p_thread = (goom_thread_t*)p_this;
327 vlc_value_t width, height, speed;
329 int16_t p_data[2][512];
330 int i_data = 0, i_count = 0;
331 PluginInfo *p_plugin_info;
332 int canc = vlc_savecancel ();
334 var_Get( p_this, "goom-width", &width );
335 var_Get( p_this, "goom-height", &height );
337 var_Create( p_thread, "goom-speed", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
338 var_Get( p_thread, "goom-speed", &speed );
339 speed.i_int = MAX_SPEED - speed.i_int;
340 if( speed.i_int < 0 ) speed.i_int = 0;
342 p_plugin_info = goom_init( width.i_int, height.i_int );
344 while( vlc_object_alive (p_thread) )
349 /* goom_update is damn slow, so just copy data and release the lock */
350 vlc_mutex_lock( &p_thread->lock );
351 if( FillBuffer( (int16_t *)p_data, &i_data, &i_pts,
352 &p_thread->date, p_thread ) != VLC_SUCCESS )
353 vlc_cond_wait( &p_thread->wait, &p_thread->lock );
354 vlc_mutex_unlock( &p_thread->lock );
356 /* Speed selection */
357 if( speed.i_int && (++i_count % (speed.i_int+1)) ) continue;
359 /* Frame dropping if necessary */
360 if( aout_DateGet( &i_pts ) + GOOM_DELAY <= mdate() ) continue;
362 plane = goom_update( p_plugin_info, p_data, 0, 0.0,
363 p_thread->psz_title, NULL );
365 free( p_thread->psz_title );
366 p_thread->psz_title = NULL;
368 while( !( p_pic = vout_CreatePicture( p_thread->p_vout, 0, 0, 0 ) ) &&
369 vlc_object_alive (p_thread) )
371 msleep( VOUT_OUTMEM_SLEEP );
374 if( p_pic == NULL ) break;
376 memcpy( p_pic->p[0].p_pixels, plane, width.i_int * height.i_int * 4 );
378 p_pic->date = aout_DateGet( &i_pts ) + GOOM_DELAY;
379 vout_DisplayPicture( p_thread->p_vout, p_pic );
382 goom_close( p_plugin_info );
383 vlc_restorecancel (canc);
387 /*****************************************************************************
388 * Close: close the plugin
389 *****************************************************************************/
390 static void Close( vlc_object_t *p_this )
392 aout_filter_t *p_filter = (aout_filter_t *)p_this;
393 aout_filter_sys_t *p_sys = p_filter->p_sys;
395 /* Stop Goom Thread */
396 vlc_object_kill( p_sys->p_thread );
398 vlc_mutex_lock( &p_sys->p_thread->lock );
399 vlc_cond_signal( &p_sys->p_thread->wait );
400 vlc_mutex_unlock( &p_sys->p_thread->lock );
402 vlc_thread_join( p_sys->p_thread );
405 vout_Request( p_filter, p_sys->p_thread->p_vout, 0 );
406 vlc_mutex_destroy( &p_sys->p_thread->lock );
407 vlc_cond_destroy( &p_sys->p_thread->wait );
408 vlc_object_detach( p_sys->p_thread );
410 while( p_sys->p_thread->i_blocks-- )
412 block_Release( p_sys->p_thread->pp_blocks[p_sys->p_thread->i_blocks] );
415 vlc_object_release( p_sys->p_thread );
420 static char *TitleGet( vlc_object_t *p_this )
422 char *psz_title = NULL;
423 input_thread_t *p_input =
424 vlc_object_find( p_this, VLC_OBJECT_INPUT, FIND_ANYWHERE );
428 psz_title = input_item_GetTitle( input_GetItem( p_input ) );
429 if( EMPTY_STR( psz_title ) )
432 char *psz_orig = input_item_GetURI( input_GetItem( p_input ) );
433 char *psz = strrchr( psz_orig, '/' );
445 psz_title = strdup( psz );
449 vlc_object_release( p_input );