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 *****************************************************************************/
32 #include <vlc_common.h>
33 #include <vlc_plugin.h>
36 #include <vlc_block.h>
37 #include <vlc_input.h>
38 #include <vlc_filter.h>
42 # include "goom_core.h"
43 # define PluginInfo void
44 # define goom_update(a,b,c,d,e,f) goom_update(b,c,d,e,f)
45 # define goom_close(a) goom_close()
46 # define goom_init(a,b) NULL; goom_init(a,b,0); goom_set_font(0,0,0)
51 # include <goom/goom.h>
54 /*****************************************************************************
56 *****************************************************************************/
57 static int Open ( vlc_object_t * );
58 static void Close ( vlc_object_t * );
60 #define WIDTH_TEXT N_("Goom display width")
61 #define HEIGHT_TEXT N_("Goom display height")
62 #define RES_LONGTEXT N_("This allows you to set the resolution of the " \
63 "Goom display (bigger resolution will be prettier but more CPU intensive).")
65 #define SPEED_TEXT N_("Goom animation speed")
66 #define SPEED_LONGTEXT N_("This allows you to set the animation speed " \
67 "(between 1 and 10, defaults to 6).")
72 set_shortname( N_("Goom"))
73 set_description( N_("Goom effect") )
74 set_category( CAT_AUDIO )
75 set_subcategory( SUBCAT_AUDIO_VISUAL )
76 set_capability( "visualization2", 0 )
77 add_integer( "goom-width", 800, NULL,
78 WIDTH_TEXT, RES_LONGTEXT, false )
79 add_integer( "goom-height", 640, NULL,
80 HEIGHT_TEXT, RES_LONGTEXT, false )
81 add_integer( "goom-speed", 6, NULL,
82 SPEED_TEXT, SPEED_LONGTEXT, false )
83 set_callbacks( Open, Close )
84 add_shortcut( "goom" )
87 /*****************************************************************************
89 *****************************************************************************/
90 #define MAX_BLOCKS 100
91 #define GOOM_DELAY 400000
96 vout_thread_t *p_vout;
103 /* Audio properties */
106 /* Audio samples queue */
107 block_t *pp_blocks[MAX_BLOCKS];
116 goom_thread_t *p_thread;
120 static block_t *DoWork ( filter_t *, block_t * );
122 static void* Thread ( vlc_object_t * );
124 static char *TitleGet( vlc_object_t * );
126 /*****************************************************************************
127 * Open: open a scope effect plugin
128 *****************************************************************************/
129 static int Open( vlc_object_t *p_this )
131 filter_t *p_filter = (filter_t *)p_this;
133 goom_thread_t *p_thread;
138 if( p_filter->fmt_in.audio.i_format != VLC_CODEC_FL32 ||
139 p_filter->fmt_out.audio.i_format != VLC_CODEC_FL32 )
141 msg_Warn( p_filter, "bad input or output format" );
144 if( !AOUT_FMTS_SIMILAR( &p_filter->fmt_in.audio, &p_filter->fmt_out.audio ) )
146 msg_Warn( p_filter, "input and output formats are not similar" );
150 p_filter->pf_audio_filter = DoWork;
152 /* Allocate structure */
153 p_sys = p_filter->p_sys = malloc( sizeof( 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 width = var_CreateGetInteger( p_thread, "goom-width" );
161 height = var_CreateGetInteger( p_thread, "goom-height" );
163 memset( &fmt, 0, sizeof(video_format_t) );
165 fmt.i_width = fmt.i_visible_width = width;
166 fmt.i_height = fmt.i_visible_height = height;
167 fmt.i_chroma = VLC_CODEC_RGB32;
168 fmt.i_sar_num = fmt.i_sar_den = 1;
170 p_thread->p_vout = aout_filter_RequestVout( p_filter, NULL, &fmt );
171 if( p_thread->p_vout == NULL )
173 msg_Err( p_filter, "no suitable vout module" );
174 vlc_object_detach( p_thread );
175 vlc_object_release( p_thread );
179 vlc_mutex_init( &p_thread->lock );
180 vlc_cond_init( &p_thread->wait );
182 p_thread->i_blocks = 0;
183 date_Init( &p_thread->date, p_filter->fmt_out.audio.i_rate, 1 );
184 date_Set( &p_thread->date, 0 );
185 p_thread->i_channels = aout_FormatNbChannels( &p_filter->fmt_in.audio );
187 p_thread->psz_title = TitleGet( VLC_OBJECT( p_filter ) );
189 if( vlc_thread_create( p_thread, "Goom Update Thread", Thread,
190 VLC_THREAD_PRIORITY_LOW ) )
192 msg_Err( p_filter, "cannot lauch goom thread" );
193 vlc_object_release( p_thread->p_vout );
194 vlc_mutex_destroy( &p_thread->lock );
195 vlc_cond_destroy( &p_thread->wait );
196 free( p_thread->psz_title );
197 vlc_object_detach( p_thread );
198 vlc_object_release( p_thread );
206 /*****************************************************************************
207 * DoWork: process samples buffer
208 *****************************************************************************
209 * This function queues the audio buffer to be processed by the goom thread
210 *****************************************************************************/
211 static block_t *DoWork( filter_t *p_filter, block_t *p_in_buf )
213 filter_sys_t *p_sys = p_filter->p_sys;
217 vlc_mutex_lock( &p_sys->p_thread->lock );
218 if( p_sys->p_thread->i_blocks == MAX_BLOCKS )
220 vlc_mutex_unlock( &p_sys->p_thread->lock );
224 p_block = block_New( p_sys->p_thread, p_in_buf->i_buffer );
227 vlc_mutex_unlock( &p_sys->p_thread->lock );
230 memcpy( p_block->p_buffer, p_in_buf->p_buffer, p_in_buf->i_buffer );
231 p_block->i_pts = p_in_buf->i_pts;
233 p_sys->p_thread->pp_blocks[p_sys->p_thread->i_blocks++] = p_block;
235 vlc_cond_signal( &p_sys->p_thread->wait );
236 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 date_t *pi_date, 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( (unsigned)(512 - *pi_data),
270 p_block->i_buffer / sizeof(float) / p_this->i_channels );
272 /* Date management */
273 if( p_block->i_pts > VLC_TS_INVALID &&
274 p_block->i_pts != date_Get( pi_date_end ) )
276 date_Set( pi_date_end, p_block->i_pts );
278 p_block->i_pts = VLC_TS_INVALID;
280 date_Increment( 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 int width, height, speed;
319 int16_t p_data[2][512];
320 int i_data = 0, i_count = 0;
321 PluginInfo *p_plugin_info;
322 int canc = vlc_savecancel ();
324 width = var_GetInteger( p_this, "goom-width" );
325 height = var_GetInteger( p_this, "goom-height" );
327 speed = var_CreateGetInteger( p_thread, "goom-speed" );
328 speed = MAX_SPEED - speed;
329 if( speed < 0 ) speed = 0;
331 p_plugin_info = goom_init( width, height );
333 while( vlc_object_alive (p_thread) )
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_count % (speed+1)) ) continue;
348 /* Frame dropping if necessary */
349 if( date_Get( &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 free( p_thread->psz_title );
355 p_thread->psz_title = NULL;
357 while( !( p_pic = vout_CreatePicture( p_thread->p_vout, 0, 0, 0 ) ) &&
358 vlc_object_alive (p_thread) )
360 msleep( VOUT_OUTMEM_SLEEP );
363 if( p_pic == NULL ) break;
365 memcpy( p_pic->p[0].p_pixels, plane, width * height * 4 );
367 p_pic->date = date_Get( &i_pts ) + GOOM_DELAY;
368 vout_DisplayPicture( p_thread->p_vout, p_pic );
371 goom_close( p_plugin_info );
372 vlc_restorecancel (canc);
376 /*****************************************************************************
377 * Close: close the plugin
378 *****************************************************************************/
379 static void Close( vlc_object_t *p_this )
381 filter_t *p_filter = (filter_t *)p_this;
382 filter_sys_t *p_sys = p_filter->p_sys;
384 /* Stop Goom Thread */
385 vlc_object_kill( p_sys->p_thread );
387 vlc_mutex_lock( &p_sys->p_thread->lock );
388 vlc_cond_signal( &p_sys->p_thread->wait );
389 vlc_mutex_unlock( &p_sys->p_thread->lock );
391 vlc_thread_join( p_sys->p_thread );
394 aout_filter_RequestVout( p_filter, p_sys->p_thread->p_vout, 0 );
395 vlc_mutex_destroy( &p_sys->p_thread->lock );
396 vlc_cond_destroy( &p_sys->p_thread->wait );
397 vlc_object_detach( p_sys->p_thread );
399 while( p_sys->p_thread->i_blocks-- )
401 block_Release( p_sys->p_thread->pp_blocks[p_sys->p_thread->i_blocks] );
404 vlc_object_release( p_sys->p_thread );
409 static char *TitleGet( vlc_object_t *p_this )
411 playlist_t *pl = pl_Hold( p_this );
415 input_thread_t *p_input = playlist_CurrentInput( pl );
416 pl_Release( p_this );
420 char *psz_title = input_item_GetTitle( input_GetItem( p_input ) );
421 if( EMPTY_STR( psz_title ) )
425 char *psz_uri = input_item_GetURI( input_GetItem( p_input ) );
426 const char *psz = strrchr( psz_orig, '/' );
429 psz_title = strdup( psz + 1 );
435 vlc_object_release( p_input );