1 /*****************************************************************************
2 * goom.c: based on libgoom (see http://ios.free.fr/?page=projet&quoi=1)
3 *****************************************************************************
4 * Copyright (C) 2003-2011 the VideoLAN team
6 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
7 * Gildas Bazin <gbazin@videolan.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
32 #include <vlc_common.h>
33 #include <vlc_plugin.h>
34 #include <vlc_aout.h> /* aout_FormatNbChannels, AOUT_FMTS_SIMILAR */
35 #include <vlc_vout.h> /* vout_*Picture, aout_filter_RequestVout */
36 #include <vlc_playlist.h> /* playlist_CurrentInput, input*Title */
38 #include <goom/goom.h>
40 /*****************************************************************************
42 *****************************************************************************/
43 static int Open ( vlc_object_t * );
44 static void Close ( vlc_object_t * );
46 #define WIDTH_TEXT N_("Goom display width")
47 #define HEIGHT_TEXT N_("Goom display height")
48 #define RES_LONGTEXT N_("This allows you to set the resolution of the " \
49 "Goom display (bigger resolution will be prettier but more CPU intensive).")
51 #define SPEED_TEXT N_("Goom animation speed")
52 #define SPEED_LONGTEXT N_("This allows you to set the animation speed " \
53 "(between 1 and 10, defaults to 6).")
58 set_shortname( N_("Goom"))
59 set_description( N_("Goom effect") )
60 set_category( CAT_AUDIO )
61 set_subcategory( SUBCAT_AUDIO_VISUAL )
62 set_capability( "visualization2", 0 )
63 add_integer( "goom-width", 800,
64 WIDTH_TEXT, RES_LONGTEXT, false )
65 add_integer( "goom-height", 640,
66 HEIGHT_TEXT, RES_LONGTEXT, false )
67 add_integer( "goom-speed", 6,
68 SPEED_TEXT, SPEED_LONGTEXT, false )
69 set_callbacks( Open, Close )
70 add_shortcut( "goom" )
73 /*****************************************************************************
75 *****************************************************************************/
76 #define MAX_BLOCKS 100
77 #define GOOM_DELAY 400000
85 vout_thread_t *p_vout;
94 /* Audio properties */
97 /* Audio samples queue */
98 block_t *pp_blocks[MAX_BLOCKS];
107 goom_thread_t *p_thread;
111 static block_t *DoWork ( filter_t *, block_t * );
113 static void *Thread( void * );
115 static char *TitleGet( vlc_object_t * );
117 /*****************************************************************************
118 * Open: open a scope effect plugin
119 *****************************************************************************/
120 static int Open( vlc_object_t *p_this )
122 filter_t *p_filter = (filter_t *)p_this;
124 goom_thread_t *p_thread;
128 if( p_filter->fmt_in.audio.i_format != VLC_CODEC_FL32 ||
129 p_filter->fmt_out.audio.i_format != VLC_CODEC_FL32 )
131 msg_Warn( p_filter, "bad input or output format" );
134 if( !AOUT_FMTS_SIMILAR( &p_filter->fmt_in.audio, &p_filter->fmt_out.audio ) )
136 msg_Warn( p_filter, "input and output formats are not similar" );
140 p_filter->pf_audio_filter = DoWork;
142 /* Allocate structure */
143 p_sys = p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
145 /* Create goom thread */
146 p_sys->p_thread = p_thread = calloc( 1, sizeof(*p_thread) );
148 const int width = p_thread->i_width = var_InheritInteger( p_filter, "goom-width" );
149 const int height = p_thread->i_height = var_InheritInteger( p_filter, "goom-height" );
151 memset( &fmt, 0, sizeof(video_format_t) );
153 fmt.i_width = fmt.i_visible_width = width;
154 fmt.i_height = fmt.i_visible_height = height;
155 fmt.i_chroma = VLC_CODEC_RGB32;
156 fmt.i_sar_num = fmt.i_sar_den = 1;
158 p_thread->p_vout = aout_filter_RequestVout( p_filter, NULL, &fmt );
159 if( p_thread->p_vout == NULL )
161 msg_Err( p_filter, "no suitable vout module" );
167 p_thread->i_speed = MAX_SPEED - var_InheritInteger( p_filter, "goom-speed" );
168 if( p_thread->i_speed < 0 )
169 p_thread->i_speed = 0;
171 vlc_mutex_init( &p_thread->lock );
172 vlc_cond_init( &p_thread->wait );
174 p_thread->i_blocks = 0;
175 date_Init( &p_thread->date, p_filter->fmt_out.audio.i_rate, 1 );
176 date_Set( &p_thread->date, 0 );
177 p_thread->i_channels = aout_FormatNbChannels( &p_filter->fmt_in.audio );
179 p_thread->psz_title = TitleGet( VLC_OBJECT( p_filter ) );
181 if( vlc_clone( &p_thread->thread,
182 Thread, p_thread, VLC_THREAD_PRIORITY_LOW ) )
184 msg_Err( p_filter, "cannot lauch goom thread" );
185 vlc_object_release( p_thread->p_vout );
186 vlc_mutex_destroy( &p_thread->lock );
187 vlc_cond_destroy( &p_thread->wait );
188 free( p_thread->psz_title );
197 /*****************************************************************************
198 * DoWork: process samples buffer
199 *****************************************************************************
200 * This function queues the audio buffer to be processed by the goom thread
201 *****************************************************************************/
202 static block_t *DoWork( filter_t *p_filter, block_t *p_in_buf )
204 filter_sys_t *p_sys = p_filter->p_sys;
208 vlc_mutex_lock( &p_sys->p_thread->lock );
209 if( p_sys->p_thread->i_blocks == MAX_BLOCKS )
211 vlc_mutex_unlock( &p_sys->p_thread->lock );
215 p_block = block_New( p_sys->p_thread, p_in_buf->i_buffer );
218 vlc_mutex_unlock( &p_sys->p_thread->lock );
221 memcpy( p_block->p_buffer, p_in_buf->p_buffer, p_in_buf->i_buffer );
222 p_block->i_pts = p_in_buf->i_pts;
224 p_sys->p_thread->pp_blocks[p_sys->p_thread->i_blocks++] = p_block;
226 vlc_cond_signal( &p_sys->p_thread->wait );
227 vlc_mutex_unlock( &p_sys->p_thread->lock );
232 /*****************************************************************************
233 * float to s16 conversion
234 *****************************************************************************/
235 static inline int16_t FloatToInt16( float f )
242 return (int16_t)( f * 32768.0 );
245 /*****************************************************************************
247 *****************************************************************************/
248 static int FillBuffer( int16_t *p_data, int *pi_data,
249 date_t *pi_date, date_t *pi_date_end,
250 goom_thread_t *p_this )
255 while( *pi_data < 512 )
257 if( !p_this->i_blocks ) return VLC_EGENERIC;
259 p_block = p_this->pp_blocks[0];
260 i_samples = __MIN( (unsigned)(512 - *pi_data),
261 p_block->i_buffer / sizeof(float) / p_this->i_channels );
263 /* Date management */
264 if( p_block->i_pts > VLC_TS_INVALID &&
265 p_block->i_pts != date_Get( pi_date_end ) )
267 date_Set( pi_date_end, p_block->i_pts );
269 p_block->i_pts = VLC_TS_INVALID;
271 date_Increment( pi_date_end, i_samples );
273 while( i_samples > 0 )
275 float *p_float = (float *)p_block->p_buffer;
277 p_data[*pi_data] = FloatToInt16( p_float[0] );
278 if( p_this->i_channels > 1 )
279 p_data[512 + *pi_data] = FloatToInt16( p_float[1] );
282 p_block->p_buffer += (sizeof(float) * p_this->i_channels);
283 p_block->i_buffer -= (sizeof(float) * p_this->i_channels);
287 if( !p_block->i_buffer )
289 block_Release( p_block );
291 if( p_this->i_blocks )
292 memmove( p_this->pp_blocks, p_this->pp_blocks + 1,
293 p_this->i_blocks * sizeof(block_t *) );
297 *pi_date = *pi_date_end;
302 /*****************************************************************************
304 *****************************************************************************/
305 static void *Thread( void *p_thread_data )
307 goom_thread_t *p_thread = (goom_thread_t*)p_thread_data;
309 int16_t p_data[2][512];
310 int i_data = 0, i_count = 0;
311 PluginInfo *p_plugin_info;
312 int canc = vlc_savecancel ();
314 p_plugin_info = goom_init( p_thread->i_width, p_thread->i_height );
321 /* FIXME the way the update is done is not really good.
322 * Supurious wake up from p_thread->wait will make it generates a frame
323 * without using new samples (probably rare as we should not be waiting
325 * The frame rate at which the video is generated is not well controlled
326 * nor the time at which each frame is displayed (not smooth)
328 /* goom_update is damn slow, so just copy data and release the lock */
329 vlc_mutex_lock( &p_thread->lock );
330 if( !p_thread->b_exit &&
331 FillBuffer( (int16_t *)p_data, &i_data,
332 &i_pts, &p_thread->date, p_thread ) != VLC_SUCCESS )
333 vlc_cond_wait( &p_thread->wait, &p_thread->lock );
334 bool b_exit = p_thread->b_exit;
335 vlc_mutex_unlock( &p_thread->lock );
340 /* Speed selection */
341 if( p_thread->i_speed && (++i_count % (p_thread->i_speed+1)) ) continue;
343 /* Frame dropping if necessary */
344 if( date_Get( &i_pts ) + GOOM_DELAY <= mdate() ) continue;
346 plane = goom_update( p_plugin_info, p_data, 0, 0.0,
347 p_thread->psz_title, NULL );
349 free( p_thread->psz_title );
350 p_thread->psz_title = NULL;
352 while( !( p_pic = vout_GetPicture( p_thread->p_vout ) ) )
354 vlc_mutex_lock( &p_thread->lock );
355 bool b_exit = p_thread->b_exit;
356 vlc_mutex_unlock( &p_thread->lock );
359 msleep( VOUT_OUTMEM_SLEEP );
362 if( p_pic == NULL ) break;
364 memcpy( p_pic->p[0].p_pixels, plane, p_thread->i_width * p_thread->i_height * 4 );
366 p_pic->date = date_Get( &i_pts ) + GOOM_DELAY;
367 vout_PutPicture( p_thread->p_vout, p_pic );
370 goom_close( p_plugin_info );
371 vlc_restorecancel (canc);
375 /*****************************************************************************
376 * Close: close the plugin
377 *****************************************************************************/
378 static void Close( vlc_object_t *p_this )
380 filter_t *p_filter = (filter_t *)p_this;
381 filter_sys_t *p_sys = p_filter->p_sys;
383 /* Stop Goom Thread */
384 vlc_mutex_lock( &p_sys->p_thread->lock );
385 p_sys->p_thread->b_exit = true;
386 vlc_cond_signal( &p_sys->p_thread->wait );
387 vlc_mutex_unlock( &p_sys->p_thread->lock );
389 vlc_join( p_sys->p_thread->thread, NULL );
392 aout_filter_RequestVout( p_filter, p_sys->p_thread->p_vout, 0 );
393 vlc_mutex_destroy( &p_sys->p_thread->lock );
394 vlc_cond_destroy( &p_sys->p_thread->wait );
396 while( p_sys->p_thread->i_blocks-- )
398 block_Release( p_sys->p_thread->pp_blocks[p_sys->p_thread->i_blocks] );
401 free( p_sys->p_thread );
406 static char *TitleGet( vlc_object_t *p_this )
408 input_thread_t *p_input = playlist_CurrentInput( pl_Get( p_this ) );
411 char *psz_title = input_item_GetTitleFbName( input_GetItem( p_input ) );
412 vlc_object_release( p_input );