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 <stdlib.h> /* malloc(), free() */
29 #include <string.h> /* strdup() */
35 #include <vlc_block.h>
36 #include <vlc_input.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_("This allows you to set 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_("This allows you to set the animation speed " \
65 "(between 1 and 10, defaults to 6).")
70 set_shortname( _("Goom"));
71 set_description( _("Goom effect") );
72 set_category( CAT_AUDIO );
73 set_subcategory( SUBCAT_AUDIO_VISUAL );
74 set_capability( "visualization", 0 );
75 add_integer( "goom-width", 320, NULL,
76 WIDTH_TEXT, RES_LONGTEXT, VLC_FALSE );
77 add_integer( "goom-height", 240, NULL,
78 HEIGHT_TEXT, RES_LONGTEXT, VLC_FALSE );
79 add_integer( "goom-speed", 6, NULL,
80 SPEED_TEXT, SPEED_LONGTEXT, VLC_FALSE );
81 set_callbacks( Open, Close );
82 add_shortcut( "goom" );
85 /*****************************************************************************
87 *****************************************************************************/
88 #define MAX_BLOCKS 100
89 #define GOOM_DELAY 400000
94 vout_thread_t *p_vout;
101 /* Audio properties */
104 /* Audio samples queue */
105 block_t *pp_blocks[MAX_BLOCKS];
112 typedef struct aout_filter_sys_t
114 goom_thread_t *p_thread;
118 static void DoWork ( aout_instance_t *, aout_filter_t *, aout_buffer_t *,
121 static void Thread ( vlc_object_t * );
123 static char *TitleGet( vlc_object_t * );
125 /*****************************************************************************
126 * Open: open a scope effect plugin
127 *****************************************************************************/
128 static int Open( vlc_object_t *p_this )
130 aout_filter_t *p_filter = (aout_filter_t *)p_this;
131 aout_filter_sys_t *p_sys;
132 goom_thread_t *p_thread;
133 vlc_value_t width, height;
137 if ( p_filter->input.i_format != VLC_FOURCC('f','l','3','2' )
138 || p_filter->output.i_format != VLC_FOURCC('f','l','3','2') )
140 msg_Warn( p_filter, "bad input or output format" );
143 if ( !AOUT_FMTS_SIMILAR( &p_filter->input, &p_filter->output ) )
145 msg_Warn( p_filter, "input and output formats are not similar" );
149 p_filter->pf_do_work = DoWork;
150 p_filter->b_in_place = 1;
152 /* Allocate structure */
153 p_sys = p_filter->p_sys = malloc( sizeof( aout_filter_sys_t ) );
155 /* Create goom thread */
156 p_sys->p_thread = p_thread =
157 vlc_object_create( p_filter, sizeof( goom_thread_t ) );
158 vlc_object_attach( p_thread, p_this );
160 var_Create( p_thread, "goom-width", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
161 var_Get( p_thread, "goom-width", &width );
162 var_Create( p_thread, "goom-height", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
163 var_Get( p_thread, "goom-height", &height );
165 memset( &fmt, 0, sizeof(video_format_t) );
167 fmt.i_width = fmt.i_visible_width = width.i_int;
168 fmt.i_height = fmt.i_visible_height = height.i_int;
169 fmt.i_chroma = VLC_FOURCC('R','V','3','2');
170 fmt.i_aspect = VOUT_ASPECT_FACTOR * width.i_int/height.i_int;
171 fmt.i_sar_num = fmt.i_sar_den = 1;
173 p_thread->p_vout = vout_Request( p_filter, NULL, &fmt );
174 if( p_thread->p_vout == NULL )
176 msg_Err( p_filter, "no suitable vout module" );
177 vlc_object_detach( p_thread );
178 vlc_object_destroy( p_thread );
182 vlc_mutex_init( p_filter, &p_thread->lock );
183 vlc_cond_init( p_filter, &p_thread->wait );
185 p_thread->i_blocks = 0;
186 aout_DateInit( &p_thread->date, p_filter->output.i_rate );
187 aout_DateSet( &p_thread->date, 0 );
188 p_thread->i_channels = aout_FormatNbChannels( &p_filter->input );
190 p_thread->psz_title = TitleGet( VLC_OBJECT( p_filter ) );
192 if( vlc_thread_create( p_thread, "Goom Update Thread", Thread,
193 VLC_THREAD_PRIORITY_LOW, VLC_FALSE ) )
195 msg_Err( p_filter, "cannot lauch goom thread" );
196 vout_Destroy( p_thread->p_vout );
197 vlc_mutex_destroy( &p_thread->lock );
198 vlc_cond_destroy( &p_thread->wait );
199 if( p_thread->psz_title ) free( p_thread->psz_title );
200 vlc_object_detach( p_thread );
201 vlc_object_destroy( p_thread );
209 /*****************************************************************************
210 * DoWork: process samples buffer
211 *****************************************************************************
212 * This function queues the audio buffer to be processed by the goom thread
213 *****************************************************************************/
214 static void DoWork( aout_instance_t * p_aout, aout_filter_t * p_filter,
215 aout_buffer_t * p_in_buf, aout_buffer_t * p_out_buf )
217 aout_filter_sys_t *p_sys = p_filter->p_sys;
220 p_out_buf->i_nb_samples = p_in_buf->i_nb_samples;
221 p_out_buf->i_nb_bytes = p_in_buf->i_nb_bytes;
224 vlc_mutex_lock( &p_sys->p_thread->lock );
225 if( p_sys->p_thread->i_blocks == MAX_BLOCKS )
227 vlc_mutex_unlock( &p_sys->p_thread->lock );
231 p_block = block_New( p_sys->p_thread, p_in_buf->i_nb_bytes );
232 if( !p_block ) return;
233 memcpy( p_block->p_buffer, p_in_buf->p_buffer, p_in_buf->i_nb_bytes );
234 p_block->i_pts = p_in_buf->start_date;
236 p_sys->p_thread->pp_blocks[p_sys->p_thread->i_blocks++] = p_block;
238 vlc_cond_signal( &p_sys->p_thread->wait );
239 vlc_mutex_unlock( &p_sys->p_thread->lock );
242 /*****************************************************************************
243 * float to s16 conversion
244 *****************************************************************************/
245 static inline int16_t FloatToInt16( float f )
252 return (int16_t)( f * 32768.0 );
255 /*****************************************************************************
257 *****************************************************************************/
258 static int FillBuffer( int16_t *p_data, int *pi_data,
259 audio_date_t *pi_date, audio_date_t *pi_date_end,
260 goom_thread_t *p_this )
265 while( *pi_data < 512 )
267 if( !p_this->i_blocks ) return VLC_EGENERIC;
269 p_block = p_this->pp_blocks[0];
270 i_samples = __MIN( 512 - *pi_data, p_block->i_buffer /
271 sizeof(float) / p_this->i_channels );
273 /* Date management */
274 if( p_block->i_pts > 0 &&
275 p_block->i_pts != aout_DateGet( pi_date_end ) )
277 aout_DateSet( pi_date_end, p_block->i_pts );
281 aout_DateIncrement( pi_date_end, i_samples );
283 while( i_samples > 0 )
285 float *p_float = (float *)p_block->p_buffer;
287 p_data[*pi_data] = FloatToInt16( p_float[0] );
288 if( p_this->i_channels > 1 )
289 p_data[512 + *pi_data] = FloatToInt16( p_float[1] );
292 p_block->p_buffer += (sizeof(float) * p_this->i_channels);
293 p_block->i_buffer -= (sizeof(float) * p_this->i_channels);
297 if( !p_block->i_buffer )
299 block_Release( p_block );
301 if( p_this->i_blocks )
302 memmove( p_this->pp_blocks, p_this->pp_blocks + 1,
303 p_this->i_blocks * sizeof(block_t *) );
307 *pi_date = *pi_date_end;
312 /*****************************************************************************
314 *****************************************************************************/
315 static void Thread( vlc_object_t *p_this )
317 goom_thread_t *p_thread = (goom_thread_t*)p_this;
318 vlc_value_t width, height, speed;
320 int16_t p_data[2][512];
321 int i_data = 0, i_count = 0;
322 PluginInfo *p_plugin_info;
324 var_Get( p_this, "goom-width", &width );
325 var_Get( p_this, "goom-height", &height );
327 var_Create( p_thread, "goom-speed", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
328 var_Get( p_thread, "goom-speed", &speed );
329 speed.i_int = MAX_SPEED - speed.i_int;
330 if( speed.i_int < 0 ) speed.i_int = 0;
332 p_plugin_info = goom_init( width.i_int, height.i_int );
334 while( !p_thread->b_die )
339 /* goom_update is damn slow, so just copy data and release the lock */
340 vlc_mutex_lock( &p_thread->lock );
341 if( FillBuffer( (int16_t *)p_data, &i_data, &i_pts,
342 &p_thread->date, p_thread ) != VLC_SUCCESS )
343 vlc_cond_wait( &p_thread->wait, &p_thread->lock );
344 vlc_mutex_unlock( &p_thread->lock );
346 /* Speed selection */
347 if( speed.i_int && (++i_count % (speed.i_int+1)) ) continue;
349 /* Frame dropping if necessary */
350 if( aout_DateGet( &i_pts ) + GOOM_DELAY <= mdate() ) continue;
352 plane = goom_update( p_plugin_info, p_data, 0, 0.0,
353 p_thread->psz_title, NULL );
355 if( p_thread->psz_title )
357 free( p_thread->psz_title );
358 p_thread->psz_title = NULL;
361 while( !( p_pic = vout_CreatePicture( p_thread->p_vout, 0, 0, 0 ) ) &&
364 msleep( VOUT_OUTMEM_SLEEP );
367 if( p_pic == NULL ) break;
369 memcpy( p_pic->p[0].p_pixels, plane, width.i_int * height.i_int * 4 );
370 vout_DatePicture( p_thread->p_vout, p_pic,
371 aout_DateGet( &i_pts ) + GOOM_DELAY );
372 vout_DisplayPicture( p_thread->p_vout, p_pic );
375 goom_close( p_plugin_info );
378 /*****************************************************************************
379 * Close: close the plugin
380 *****************************************************************************/
381 static void Close( vlc_object_t *p_this )
383 aout_filter_t *p_filter = (aout_filter_t *)p_this;
384 aout_filter_sys_t *p_sys = p_filter->p_sys;
386 /* Stop Goom Thread */
387 vlc_object_kill( p_sys->p_thread );
389 vlc_mutex_lock( &p_sys->p_thread->lock );
390 vlc_cond_signal( &p_sys->p_thread->wait );
391 vlc_mutex_unlock( &p_sys->p_thread->lock );
393 vlc_thread_join( p_sys->p_thread );
396 vout_Request( p_filter, p_sys->p_thread->p_vout, 0 );
397 vlc_mutex_destroy( &p_sys->p_thread->lock );
398 vlc_cond_destroy( &p_sys->p_thread->wait );
399 vlc_object_detach( p_sys->p_thread );
401 while( p_sys->p_thread->i_blocks-- )
403 block_Release( p_sys->p_thread->pp_blocks[p_sys->p_thread->i_blocks] );
406 vlc_object_destroy( p_sys->p_thread );
411 static char *TitleGet( vlc_object_t *p_this )
413 char *psz_title = NULL;
414 input_thread_t *p_input =
415 vlc_object_find( p_this, VLC_OBJECT_INPUT, FIND_ANYWHERE );
419 psz_title = strdup( input_item_GetTitle( input_GetItem( p_input ) ) );
420 if( EMPTY_STR( psz_title ) )
423 char *psz = strrchr( input_GetItem(p_input)->psz_uri, '/' );
431 psz = input_GetItem(p_input)->psz_uri;
435 psz_title = strdup( psz );
438 vlc_object_release( p_input );