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>
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( N_("Goom"))
74 set_description( N_("Goom effect") )
75 set_category( CAT_AUDIO )
76 set_subcategory( SUBCAT_AUDIO_VISUAL )
77 set_capability( "visualization", 0 )
78 add_integer( "goom-width", 800, NULL,
79 WIDTH_TEXT, RES_LONGTEXT, false )
80 add_integer( "goom-height", 640, 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 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;
140 if( p_filter->input.i_format != VLC_CODEC_FL32 ||
141 p_filter->output.i_format != VLC_CODEC_FL32 )
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 width = var_CreateGetInteger( p_thread, "goom-width" );
164 height = var_CreateGetInteger( p_thread, "goom-height" );
166 memset( &fmt, 0, sizeof(video_format_t) );
168 fmt.i_width = fmt.i_visible_width = width;
169 fmt.i_height = fmt.i_visible_height = height;
170 fmt.i_chroma = VLC_CODEC_RGB32;
171 fmt.i_aspect = VOUT_ASPECT_FACTOR * width/height;
172 fmt.i_sar_num = fmt.i_sar_den = 1;
174 p_thread->p_vout = aout_filter_RequestVout( p_filter, NULL, &fmt );
175 if( p_thread->p_vout == NULL )
177 msg_Err( p_filter, "no suitable vout module" );
178 vlc_object_detach( p_thread );
179 vlc_object_release( p_thread );
183 vlc_mutex_init( &p_thread->lock );
184 vlc_cond_init( &p_thread->wait );
186 p_thread->i_blocks = 0;
187 date_Init( &p_thread->date, p_filter->output.i_rate, 1 );
188 date_Set( &p_thread->date, 0 );
189 p_thread->i_channels = aout_FormatNbChannels( &p_filter->input );
191 p_thread->psz_title = TitleGet( VLC_OBJECT( p_filter ) );
193 if( vlc_thread_create( p_thread, "Goom Update Thread", Thread,
194 VLC_THREAD_PRIORITY_LOW ) )
196 msg_Err( p_filter, "cannot lauch goom thread" );
197 vlc_object_release( p_thread->p_vout );
198 vlc_mutex_destroy( &p_thread->lock );
199 vlc_cond_destroy( &p_thread->wait );
200 free( p_thread->psz_title );
201 vlc_object_detach( p_thread );
202 vlc_object_release( p_thread );
210 /*****************************************************************************
211 * DoWork: process samples buffer
212 *****************************************************************************
213 * This function queues the audio buffer to be processed by the goom thread
214 *****************************************************************************/
215 static void DoWork( aout_instance_t * p_aout, aout_filter_t * p_filter,
216 aout_buffer_t * p_in_buf, aout_buffer_t * p_out_buf )
218 VLC_UNUSED( p_aout );
220 aout_filter_sys_t *p_sys = p_filter->p_sys;
223 p_out_buf->i_nb_samples = p_in_buf->i_nb_samples;
224 p_out_buf->i_nb_bytes = p_in_buf->i_nb_bytes;
227 vlc_mutex_lock( &p_sys->p_thread->lock );
228 if( p_sys->p_thread->i_blocks == MAX_BLOCKS )
230 vlc_mutex_unlock( &p_sys->p_thread->lock );
234 p_block = block_New( p_sys->p_thread, p_in_buf->i_nb_bytes );
237 vlc_mutex_unlock( &p_sys->p_thread->lock );
240 memcpy( p_block->p_buffer, p_in_buf->p_buffer, p_in_buf->i_nb_bytes );
241 p_block->i_pts = p_in_buf->i_pts;
243 p_sys->p_thread->pp_blocks[p_sys->p_thread->i_blocks++] = p_block;
245 vlc_cond_signal( &p_sys->p_thread->wait );
246 vlc_mutex_unlock( &p_sys->p_thread->lock );
249 /*****************************************************************************
250 * float to s16 conversion
251 *****************************************************************************/
252 static inline int16_t FloatToInt16( float f )
259 return (int16_t)( f * 32768.0 );
262 /*****************************************************************************
264 *****************************************************************************/
265 static int FillBuffer( int16_t *p_data, int *pi_data,
266 date_t *pi_date, date_t *pi_date_end,
267 goom_thread_t *p_this )
272 while( *pi_data < 512 )
274 if( !p_this->i_blocks ) return VLC_EGENERIC;
276 p_block = p_this->pp_blocks[0];
277 i_samples = __MIN( (unsigned)(512 - *pi_data),
278 p_block->i_buffer / sizeof(float) / p_this->i_channels );
280 /* Date management */
281 if( p_block->i_pts > 0 &&
282 p_block->i_pts != date_Get( pi_date_end ) )
284 date_Set( pi_date_end, p_block->i_pts );
288 date_Increment( pi_date_end, i_samples );
290 while( i_samples > 0 )
292 float *p_float = (float *)p_block->p_buffer;
294 p_data[*pi_data] = FloatToInt16( p_float[0] );
295 if( p_this->i_channels > 1 )
296 p_data[512 + *pi_data] = FloatToInt16( p_float[1] );
299 p_block->p_buffer += (sizeof(float) * p_this->i_channels);
300 p_block->i_buffer -= (sizeof(float) * p_this->i_channels);
304 if( !p_block->i_buffer )
306 block_Release( p_block );
308 if( p_this->i_blocks )
309 memmove( p_this->pp_blocks, p_this->pp_blocks + 1,
310 p_this->i_blocks * sizeof(block_t *) );
314 *pi_date = *pi_date_end;
319 /*****************************************************************************
321 *****************************************************************************/
322 static void* Thread( vlc_object_t *p_this )
324 goom_thread_t *p_thread = (goom_thread_t*)p_this;
325 int width, height, speed;
327 int16_t p_data[2][512];
328 int i_data = 0, i_count = 0;
329 PluginInfo *p_plugin_info;
330 int canc = vlc_savecancel ();
332 width = var_GetInteger( p_this, "goom-width" );
333 height = var_GetInteger( p_this, "goom-height" );
335 speed = var_CreateGetInteger( p_thread, "goom-speed" );
336 speed = MAX_SPEED - speed;
337 if( speed < 0 ) speed = 0;
339 p_plugin_info = goom_init( width, height );
341 while( vlc_object_alive (p_thread) )
346 /* goom_update is damn slow, so just copy data and release the lock */
347 vlc_mutex_lock( &p_thread->lock );
348 if( FillBuffer( (int16_t *)p_data, &i_data, &i_pts,
349 &p_thread->date, p_thread ) != VLC_SUCCESS )
350 vlc_cond_wait( &p_thread->wait, &p_thread->lock );
351 vlc_mutex_unlock( &p_thread->lock );
353 /* Speed selection */
354 if( speed && (++i_count % (speed+1)) ) continue;
356 /* Frame dropping if necessary */
357 if( date_Get( &i_pts ) + GOOM_DELAY <= mdate() ) continue;
359 plane = goom_update( p_plugin_info, p_data, 0, 0.0,
360 p_thread->psz_title, NULL );
362 free( p_thread->psz_title );
363 p_thread->psz_title = NULL;
365 while( !( p_pic = vout_CreatePicture( p_thread->p_vout, 0, 0, 0 ) ) &&
366 vlc_object_alive (p_thread) )
368 msleep( VOUT_OUTMEM_SLEEP );
371 if( p_pic == NULL ) break;
373 memcpy( p_pic->p[0].p_pixels, plane, width * height * 4 );
375 p_pic->date = date_Get( &i_pts ) + GOOM_DELAY;
376 vout_DisplayPicture( p_thread->p_vout, p_pic );
379 goom_close( p_plugin_info );
380 vlc_restorecancel (canc);
384 /*****************************************************************************
385 * Close: close the plugin
386 *****************************************************************************/
387 static void Close( vlc_object_t *p_this )
389 aout_filter_t *p_filter = (aout_filter_t *)p_this;
390 aout_filter_sys_t *p_sys = p_filter->p_sys;
392 /* Stop Goom Thread */
393 vlc_object_kill( p_sys->p_thread );
395 vlc_mutex_lock( &p_sys->p_thread->lock );
396 vlc_cond_signal( &p_sys->p_thread->wait );
397 vlc_mutex_unlock( &p_sys->p_thread->lock );
399 vlc_thread_join( p_sys->p_thread );
402 aout_filter_RequestVout( p_filter, p_sys->p_thread->p_vout, 0 );
403 vlc_mutex_destroy( &p_sys->p_thread->lock );
404 vlc_cond_destroy( &p_sys->p_thread->wait );
405 vlc_object_detach( p_sys->p_thread );
407 while( p_sys->p_thread->i_blocks-- )
409 block_Release( p_sys->p_thread->pp_blocks[p_sys->p_thread->i_blocks] );
412 vlc_object_release( p_sys->p_thread );
417 static char *TitleGet( vlc_object_t *p_this )
419 char *psz_title = NULL;
420 input_thread_t *p_input =
421 vlc_object_find( p_this, VLC_OBJECT_INPUT, FIND_ANYWHERE );
425 psz_title = input_item_GetTitle( input_GetItem( p_input ) );
426 if( EMPTY_STR( psz_title ) )
429 char *psz_orig = input_item_GetURI( input_GetItem( p_input ) );
430 char *psz = strrchr( psz_orig, '/' );
442 psz_title = strdup( psz );
446 vlc_object_release( p_input );