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>
40 #include <vlc_filter.h>
44 # include "goom_core.h"
45 # define PluginInfo void
46 # define goom_update(a,b,c,d,e,f) goom_update(b,c,d,e,f)
47 # define goom_close(a) goom_close()
48 # define goom_init(a,b) NULL; goom_init(a,b,0); goom_set_font(0,0,0)
53 # include <goom/goom.h>
56 /*****************************************************************************
58 *****************************************************************************/
59 static int Open ( vlc_object_t * );
60 static void Close ( vlc_object_t * );
62 #define WIDTH_TEXT N_("Goom display width")
63 #define HEIGHT_TEXT N_("Goom display height")
64 #define RES_LONGTEXT N_("This allows you to set the resolution of the " \
65 "Goom display (bigger resolution will be prettier but more CPU intensive).")
67 #define SPEED_TEXT N_("Goom animation speed")
68 #define SPEED_LONGTEXT N_("This allows you to set the animation speed " \
69 "(between 1 and 10, defaults to 6).")
74 set_shortname( N_("Goom"))
75 set_description( N_("Goom effect") )
76 set_category( CAT_AUDIO )
77 set_subcategory( SUBCAT_AUDIO_VISUAL )
78 set_capability( "visualization2", 0 )
79 add_integer( "goom-width", 800, NULL,
80 WIDTH_TEXT, RES_LONGTEXT, false )
81 add_integer( "goom-height", 640, NULL,
82 HEIGHT_TEXT, RES_LONGTEXT, false )
83 add_integer( "goom-speed", 6, NULL,
84 SPEED_TEXT, SPEED_LONGTEXT, false )
85 set_callbacks( Open, Close )
86 add_shortcut( "goom" )
89 /*****************************************************************************
91 *****************************************************************************/
92 #define MAX_BLOCKS 100
93 #define GOOM_DELAY 400000
98 vout_thread_t *p_vout;
105 /* Audio properties */
108 /* Audio samples queue */
109 block_t *pp_blocks[MAX_BLOCKS];
118 goom_thread_t *p_thread;
122 static block_t *DoWork ( filter_t *, block_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 filter_t *p_filter = (filter_t *)p_this;
135 goom_thread_t *p_thread;
140 if( p_filter->fmt_in.audio.i_format != VLC_CODEC_FL32 ||
141 p_filter->fmt_out.audio.i_format != VLC_CODEC_FL32 )
143 msg_Warn( p_filter, "bad input or output format" );
146 if( !AOUT_FMTS_SIMILAR( &p_filter->fmt_in.audio, &p_filter->fmt_out.audio ) )
148 msg_Warn( p_filter, "input and output formats are not similar" );
152 p_filter->pf_audio_filter = DoWork;
154 /* Allocate structure */
155 p_sys = p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
157 /* Create goom thread */
158 p_sys->p_thread = p_thread =
159 vlc_object_create( p_filter, sizeof( goom_thread_t ) );
160 vlc_object_attach( p_thread, p_this );
162 width = var_CreateGetInteger( p_thread, "goom-width" );
163 height = var_CreateGetInteger( p_thread, "goom-height" );
165 memset( &fmt, 0, sizeof(video_format_t) );
167 fmt.i_width = fmt.i_visible_width = width;
168 fmt.i_height = fmt.i_visible_height = height;
169 fmt.i_chroma = VLC_CODEC_RGB32;
170 fmt.i_aspect = VOUT_ASPECT_FACTOR * width/height;
171 fmt.i_sar_num = fmt.i_sar_den = 1;
173 p_thread->p_vout = aout_filter_RequestVout( 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_release( p_thread );
182 vlc_mutex_init( &p_thread->lock );
183 vlc_cond_init( &p_thread->wait );
185 p_thread->i_blocks = 0;
186 date_Init( &p_thread->date, p_filter->fmt_out.audio.i_rate, 1 );
187 date_Set( &p_thread->date, 0 );
188 p_thread->i_channels = aout_FormatNbChannels( &p_filter->fmt_in.audio );
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 ) )
195 msg_Err( p_filter, "cannot lauch goom thread" );
196 vlc_object_release( p_thread->p_vout );
197 vlc_mutex_destroy( &p_thread->lock );
198 vlc_cond_destroy( &p_thread->wait );
199 free( p_thread->psz_title );
200 vlc_object_detach( p_thread );
201 vlc_object_release( 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 block_t *DoWork( filter_t *p_filter, block_t *p_in_buf )
216 filter_sys_t *p_sys = p_filter->p_sys;
220 vlc_mutex_lock( &p_sys->p_thread->lock );
221 if( p_sys->p_thread->i_blocks == MAX_BLOCKS )
223 vlc_mutex_unlock( &p_sys->p_thread->lock );
227 p_block = block_New( p_sys->p_thread, p_in_buf->i_buffer );
230 vlc_mutex_unlock( &p_sys->p_thread->lock );
233 memcpy( p_block->p_buffer, p_in_buf->p_buffer, p_in_buf->i_buffer );
234 p_block->i_pts = p_in_buf->i_pts;
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 );
244 /*****************************************************************************
245 * float to s16 conversion
246 *****************************************************************************/
247 static inline int16_t FloatToInt16( float f )
254 return (int16_t)( f * 32768.0 );
257 /*****************************************************************************
259 *****************************************************************************/
260 static int FillBuffer( int16_t *p_data, int *pi_data,
261 date_t *pi_date, date_t *pi_date_end,
262 goom_thread_t *p_this )
267 while( *pi_data < 512 )
269 if( !p_this->i_blocks ) return VLC_EGENERIC;
271 p_block = p_this->pp_blocks[0];
272 i_samples = __MIN( (unsigned)(512 - *pi_data),
273 p_block->i_buffer / sizeof(float) / p_this->i_channels );
275 /* Date management */
276 if( p_block->i_pts > VLC_TS_INVALID &&
277 p_block->i_pts != date_Get( pi_date_end ) )
279 date_Set( pi_date_end, p_block->i_pts );
281 p_block->i_pts = VLC_TS_INVALID;
283 date_Increment( pi_date_end, i_samples );
285 while( i_samples > 0 )
287 float *p_float = (float *)p_block->p_buffer;
289 p_data[*pi_data] = FloatToInt16( p_float[0] );
290 if( p_this->i_channels > 1 )
291 p_data[512 + *pi_data] = FloatToInt16( p_float[1] );
294 p_block->p_buffer += (sizeof(float) * p_this->i_channels);
295 p_block->i_buffer -= (sizeof(float) * p_this->i_channels);
299 if( !p_block->i_buffer )
301 block_Release( p_block );
303 if( p_this->i_blocks )
304 memmove( p_this->pp_blocks, p_this->pp_blocks + 1,
305 p_this->i_blocks * sizeof(block_t *) );
309 *pi_date = *pi_date_end;
314 /*****************************************************************************
316 *****************************************************************************/
317 static void* Thread( vlc_object_t *p_this )
319 goom_thread_t *p_thread = (goom_thread_t*)p_this;
320 int width, height, speed;
322 int16_t p_data[2][512];
323 int i_data = 0, i_count = 0;
324 PluginInfo *p_plugin_info;
325 int canc = vlc_savecancel ();
327 width = var_GetInteger( p_this, "goom-width" );
328 height = var_GetInteger( p_this, "goom-height" );
330 speed = var_CreateGetInteger( p_thread, "goom-speed" );
331 speed = MAX_SPEED - speed;
332 if( speed < 0 ) speed = 0;
334 p_plugin_info = goom_init( width, height );
336 while( vlc_object_alive (p_thread) )
341 /* goom_update is damn slow, so just copy data and release the lock */
342 vlc_mutex_lock( &p_thread->lock );
343 if( FillBuffer( (int16_t *)p_data, &i_data, &i_pts,
344 &p_thread->date, p_thread ) != VLC_SUCCESS )
345 vlc_cond_wait( &p_thread->wait, &p_thread->lock );
346 vlc_mutex_unlock( &p_thread->lock );
348 /* Speed selection */
349 if( speed && (++i_count % (speed+1)) ) continue;
351 /* Frame dropping if necessary */
352 if( date_Get( &i_pts ) + GOOM_DELAY <= mdate() ) continue;
354 plane = goom_update( p_plugin_info, p_data, 0, 0.0,
355 p_thread->psz_title, NULL );
357 free( p_thread->psz_title );
358 p_thread->psz_title = NULL;
360 while( !( p_pic = vout_CreatePicture( p_thread->p_vout, 0, 0, 0 ) ) &&
361 vlc_object_alive (p_thread) )
363 msleep( VOUT_OUTMEM_SLEEP );
366 if( p_pic == NULL ) break;
368 memcpy( p_pic->p[0].p_pixels, plane, width * height * 4 );
370 p_pic->date = date_Get( &i_pts ) + GOOM_DELAY;
371 vout_DisplayPicture( p_thread->p_vout, p_pic );
374 goom_close( p_plugin_info );
375 vlc_restorecancel (canc);
379 /*****************************************************************************
380 * Close: close the plugin
381 *****************************************************************************/
382 static void Close( vlc_object_t *p_this )
384 filter_t *p_filter = (filter_t *)p_this;
385 filter_sys_t *p_sys = p_filter->p_sys;
387 /* Stop Goom Thread */
388 vlc_object_kill( p_sys->p_thread );
390 vlc_mutex_lock( &p_sys->p_thread->lock );
391 vlc_cond_signal( &p_sys->p_thread->wait );
392 vlc_mutex_unlock( &p_sys->p_thread->lock );
394 vlc_thread_join( p_sys->p_thread );
397 aout_filter_RequestVout( p_filter, p_sys->p_thread->p_vout, 0 );
398 vlc_mutex_destroy( &p_sys->p_thread->lock );
399 vlc_cond_destroy( &p_sys->p_thread->wait );
400 vlc_object_detach( p_sys->p_thread );
402 while( p_sys->p_thread->i_blocks-- )
404 block_Release( p_sys->p_thread->pp_blocks[p_sys->p_thread->i_blocks] );
407 vlc_object_release( p_sys->p_thread );
412 static char *TitleGet( vlc_object_t *p_this )
414 char *psz_title = NULL;
415 input_thread_t *p_input =
416 vlc_object_find( p_this, VLC_OBJECT_INPUT, FIND_ANYWHERE );
420 psz_title = input_item_GetTitle( input_GetItem( p_input ) );
421 if( EMPTY_STR( psz_title ) )
424 char *psz_orig = input_item_GetURI( input_GetItem( p_input ) );
425 char *psz = strrchr( psz_orig, '/' );
437 psz_title = strdup( psz );
441 vlc_object_release( p_input );