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 *****************************************************************************/
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( _("Goom"));
74 set_description( _("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_filter, &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 vout_Destroy( 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 );
237 if( !p_block ) return;
238 memcpy( p_block->p_buffer, p_in_buf->p_buffer, p_in_buf->i_nb_bytes );
239 p_block->i_pts = p_in_buf->start_date;
241 p_sys->p_thread->pp_blocks[p_sys->p_thread->i_blocks++] = p_block;
243 vlc_cond_signal( &p_sys->p_thread->wait );
244 vlc_mutex_unlock( &p_sys->p_thread->lock );
247 /*****************************************************************************
248 * float to s16 conversion
249 *****************************************************************************/
250 static inline int16_t FloatToInt16( float f )
257 return (int16_t)( f * 32768.0 );
260 /*****************************************************************************
262 *****************************************************************************/
263 static int FillBuffer( int16_t *p_data, int *pi_data,
264 audio_date_t *pi_date, audio_date_t *pi_date_end,
265 goom_thread_t *p_this )
270 while( *pi_data < 512 )
272 if( !p_this->i_blocks ) return VLC_EGENERIC;
274 p_block = p_this->pp_blocks[0];
275 i_samples = __MIN( 512 - *pi_data, p_block->i_buffer /
276 sizeof(float) / p_this->i_channels );
278 /* Date management */
279 if( p_block->i_pts > 0 &&
280 p_block->i_pts != aout_DateGet( pi_date_end ) )
282 aout_DateSet( pi_date_end, p_block->i_pts );
286 aout_DateIncrement( pi_date_end, i_samples );
288 while( i_samples > 0 )
290 float *p_float = (float *)p_block->p_buffer;
292 p_data[*pi_data] = FloatToInt16( p_float[0] );
293 if( p_this->i_channels > 1 )
294 p_data[512 + *pi_data] = FloatToInt16( p_float[1] );
297 p_block->p_buffer += (sizeof(float) * p_this->i_channels);
298 p_block->i_buffer -= (sizeof(float) * p_this->i_channels);
302 if( !p_block->i_buffer )
304 block_Release( p_block );
306 if( p_this->i_blocks )
307 memmove( p_this->pp_blocks, p_this->pp_blocks + 1,
308 p_this->i_blocks * sizeof(block_t *) );
312 *pi_date = *pi_date_end;
317 /*****************************************************************************
319 *****************************************************************************/
320 static void Thread( vlc_object_t *p_this )
322 goom_thread_t *p_thread = (goom_thread_t*)p_this;
323 vlc_value_t width, height, speed;
325 int16_t p_data[2][512];
326 int i_data = 0, i_count = 0;
327 PluginInfo *p_plugin_info;
329 var_Get( p_this, "goom-width", &width );
330 var_Get( p_this, "goom-height", &height );
332 var_Create( p_thread, "goom-speed", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
333 var_Get( p_thread, "goom-speed", &speed );
334 speed.i_int = MAX_SPEED - speed.i_int;
335 if( speed.i_int < 0 ) speed.i_int = 0;
337 p_plugin_info = goom_init( width.i_int, height.i_int );
339 while( !p_thread->b_die )
344 /* goom_update is damn slow, so just copy data and release the lock */
345 vlc_mutex_lock( &p_thread->lock );
346 if( FillBuffer( (int16_t *)p_data, &i_data, &i_pts,
347 &p_thread->date, p_thread ) != VLC_SUCCESS )
348 vlc_cond_wait( &p_thread->wait, &p_thread->lock );
349 vlc_mutex_unlock( &p_thread->lock );
351 /* Speed selection */
352 if( speed.i_int && (++i_count % (speed.i_int+1)) ) continue;
354 /* Frame dropping if necessary */
355 if( aout_DateGet( &i_pts ) + GOOM_DELAY <= mdate() ) continue;
357 plane = goom_update( p_plugin_info, p_data, 0, 0.0,
358 p_thread->psz_title, NULL );
360 free( p_thread->psz_title );
361 p_thread->psz_title = NULL;
363 while( !( p_pic = vout_CreatePicture( p_thread->p_vout, 0, 0, 0 ) ) &&
366 msleep( VOUT_OUTMEM_SLEEP );
369 if( p_pic == NULL ) break;
371 memcpy( p_pic->p[0].p_pixels, plane, width.i_int * height.i_int * 4 );
372 vout_DatePicture( p_thread->p_vout, p_pic,
373 aout_DateGet( &i_pts ) + GOOM_DELAY );
374 vout_DisplayPicture( p_thread->p_vout, p_pic );
377 goom_close( p_plugin_info );
380 /*****************************************************************************
381 * Close: close the plugin
382 *****************************************************************************/
383 static void Close( vlc_object_t *p_this )
385 aout_filter_t *p_filter = (aout_filter_t *)p_this;
386 aout_filter_sys_t *p_sys = p_filter->p_sys;
388 /* Stop Goom Thread */
389 vlc_object_kill( p_sys->p_thread );
391 vlc_mutex_lock( &p_sys->p_thread->lock );
392 vlc_cond_signal( &p_sys->p_thread->wait );
393 vlc_mutex_unlock( &p_sys->p_thread->lock );
395 vlc_thread_join( p_sys->p_thread );
398 vout_Request( p_filter, p_sys->p_thread->p_vout, 0 );
399 vlc_mutex_destroy( &p_sys->p_thread->lock );
400 vlc_cond_destroy( &p_sys->p_thread->wait );
401 vlc_object_detach( p_sys->p_thread );
403 while( p_sys->p_thread->i_blocks-- )
405 block_Release( p_sys->p_thread->pp_blocks[p_sys->p_thread->i_blocks] );
408 vlc_object_release( p_sys->p_thread );
413 static char *TitleGet( vlc_object_t *p_this )
415 char *psz_title = NULL;
416 input_thread_t *p_input =
417 vlc_object_find( p_this, VLC_OBJECT_INPUT, FIND_ANYWHERE );
421 psz_title = input_item_GetTitle( input_GetItem( p_input ) );
422 if( EMPTY_STR( psz_title ) )
425 char *psz_orig = input_item_GetURI( input_GetItem( p_input ) );
426 char *psz = strrchr( psz_orig, '/' );
438 psz_title = strdup( psz );
442 vlc_object_release( p_input );