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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
28 #include <stdlib.h> /* malloc(), free() */
29 #include <string.h> /* strdup() */
33 #include <vlc/input.h>
36 #include "aout_internal.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_("Allows you to change 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_("Allows you to reduce the speed of the animation " \
65 "(default 6, max 10).")
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;
134 video_format_t fmt = {0};
136 if ( p_filter->input.i_format != VLC_FOURCC('f','l','3','2' )
137 || p_filter->output.i_format != VLC_FOURCC('f','l','3','2') )
139 msg_Warn( p_filter, "Bad input or output format" );
142 if ( !AOUT_FMTS_SIMILAR( &p_filter->input, &p_filter->output ) )
144 msg_Warn( p_filter, "input and output formats are not similar" );
148 p_filter->pf_do_work = DoWork;
149 p_filter->b_in_place = 1;
151 /* Allocate structure */
152 p_sys = p_filter->p_sys = malloc( sizeof( aout_filter_sys_t ) );
154 /* Create goom thread */
155 p_sys->p_thread = p_thread =
156 vlc_object_create( p_filter, sizeof( goom_thread_t ) );
157 vlc_object_attach( p_thread, p_this );
159 var_Create( p_thread, "goom-width", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
160 var_Get( p_thread, "goom-width", &width );
161 var_Create( p_thread, "goom-height", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
162 var_Get( p_thread, "goom-height", &height );
164 fmt.i_width = fmt.i_visible_width = width.i_int;
165 fmt.i_height = fmt.i_visible_height = height.i_int;
166 fmt.i_chroma = VLC_FOURCC('R','V','3','2');
167 fmt.i_aspect = VOUT_ASPECT_FACTOR * width.i_int/height.i_int;
168 fmt.i_sar_num = fmt.i_sar_den = 1;
170 p_thread->p_vout = vout_Request( 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_destroy( p_thread );
179 vlc_mutex_init( p_filter, &p_thread->lock );
180 vlc_cond_init( p_filter, &p_thread->wait );
182 p_thread->i_blocks = 0;
183 aout_DateInit( &p_thread->date, p_filter->output.i_rate );
184 aout_DateSet( &p_thread->date, 0 );
185 p_thread->i_channels = aout_FormatNbChannels( &p_filter->input );
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, VLC_FALSE ) )
192 msg_Err( p_filter, "cannot lauch goom thread" );
193 vout_Destroy( p_thread->p_vout );
194 vlc_mutex_destroy( &p_thread->lock );
195 vlc_cond_destroy( &p_thread->wait );
196 if( p_thread->psz_title ) free( p_thread->psz_title );
197 vlc_object_detach( p_thread );
198 vlc_object_destroy( 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 void DoWork( aout_instance_t * p_aout, aout_filter_t * p_filter,
212 aout_buffer_t * p_in_buf, aout_buffer_t * p_out_buf )
214 aout_filter_sys_t *p_sys = p_filter->p_sys;
217 p_out_buf->i_nb_samples = p_in_buf->i_nb_samples;
218 p_out_buf->i_nb_bytes = p_in_buf->i_nb_bytes;
221 vlc_mutex_lock( &p_sys->p_thread->lock );
222 if( p_sys->p_thread->i_blocks == MAX_BLOCKS )
224 vlc_mutex_unlock( &p_sys->p_thread->lock );
228 p_block = block_New( p_sys->p_thread, p_in_buf->i_nb_bytes );
229 if( !p_block ) return;
230 memcpy( p_block->p_buffer, p_in_buf->p_buffer, p_in_buf->i_nb_bytes );
231 p_block->i_pts = p_in_buf->start_date;
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 );
239 /*****************************************************************************
240 * float to s16 conversion
241 *****************************************************************************/
242 static inline int16_t FloatToInt16( float f )
249 return (int16_t)( f * 32768.0 );
252 /*****************************************************************************
254 *****************************************************************************/
255 static int FillBuffer( int16_t *p_data, int *pi_data,
256 audio_date_t *pi_date, audio_date_t *pi_date_end,
257 goom_thread_t *p_this )
262 while( *pi_data < 512 )
264 if( !p_this->i_blocks ) return VLC_EGENERIC;
266 p_block = p_this->pp_blocks[0];
267 i_samples = __MIN( 512 - *pi_data, p_block->i_buffer /
268 sizeof(float) / p_this->i_channels );
270 /* Date management */
271 if( p_block->i_pts > 0 &&
272 p_block->i_pts != aout_DateGet( pi_date_end ) )
274 aout_DateSet( pi_date_end, p_block->i_pts );
278 aout_DateIncrement( pi_date_end, i_samples );
280 while( i_samples > 0 )
282 float *p_float = (float *)p_block->p_buffer;
284 p_data[*pi_data] = FloatToInt16( p_float[0] );
285 if( p_this->i_channels > 1 )
286 p_data[512 + *pi_data] = FloatToInt16( p_float[1] );
289 p_block->p_buffer += (sizeof(float) * p_this->i_channels);
290 p_block->i_buffer -= (sizeof(float) * p_this->i_channels);
294 if( !p_block->i_buffer )
296 block_Release( p_block );
298 if( p_this->i_blocks )
299 memmove( p_this->pp_blocks, p_this->pp_blocks + 1,
300 p_this->i_blocks * sizeof(block_t *) );
304 *pi_date = *pi_date_end;
309 /*****************************************************************************
311 *****************************************************************************/
312 static void Thread( vlc_object_t *p_this )
314 goom_thread_t *p_thread = (goom_thread_t*)p_this;
315 vlc_value_t width, height, speed;
317 int16_t p_data[2][512];
318 int i_data = 0, i_count = 0;
319 PluginInfo *p_plugin_info;
321 var_Get( p_this, "goom-width", &width );
322 var_Get( p_this, "goom-height", &height );
324 var_Create( p_thread, "goom-speed", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
325 var_Get( p_thread, "goom-speed", &speed );
326 speed.i_int = MAX_SPEED - speed.i_int;
327 if( speed.i_int < 0 ) speed.i_int = 0;
329 p_plugin_info = goom_init( width.i_int, height.i_int );
331 while( !p_thread->b_die )
336 /* goom_update is damn slow, so just copy data and release the lock */
337 vlc_mutex_lock( &p_thread->lock );
338 if( FillBuffer( (int16_t *)p_data, &i_data, &i_pts,
339 &p_thread->date, p_thread ) != VLC_SUCCESS )
340 vlc_cond_wait( &p_thread->wait, &p_thread->lock );
341 vlc_mutex_unlock( &p_thread->lock );
343 /* Speed selection */
344 if( speed.i_int && (++i_count % (speed.i_int+1)) ) continue;
346 /* Frame dropping if necessary */
347 if( aout_DateGet( &i_pts ) + GOOM_DELAY <= mdate() ) continue;
349 plane = goom_update( p_plugin_info, p_data, 0, 0.0,
350 p_thread->psz_title, NULL );
352 if( p_thread->psz_title )
354 free( p_thread->psz_title );
355 p_thread->psz_title = NULL;
358 while( !( p_pic = vout_CreatePicture( p_thread->p_vout, 0, 0, 0 ) ) &&
361 msleep( VOUT_OUTMEM_SLEEP );
364 if( p_pic == NULL ) break;
366 memcpy( p_pic->p[0].p_pixels, plane, width.i_int * height.i_int * 4 );
367 vout_DatePicture( p_thread->p_vout, p_pic,
368 aout_DateGet( &i_pts ) + GOOM_DELAY );
369 vout_DisplayPicture( p_thread->p_vout, p_pic );
372 goom_close( p_plugin_info );
375 /*****************************************************************************
376 * Close: close the plugin
377 *****************************************************************************/
378 static void Close( vlc_object_t *p_this )
380 aout_filter_t *p_filter = (aout_filter_t *)p_this;
381 aout_filter_sys_t *p_sys = p_filter->p_sys;
383 /* Stop Goom Thread */
384 p_sys->p_thread->b_die = VLC_TRUE;
386 vlc_mutex_lock( &p_sys->p_thread->lock );
387 vlc_cond_signal( &p_sys->p_thread->wait );
388 vlc_mutex_unlock( &p_sys->p_thread->lock );
390 vlc_thread_join( p_sys->p_thread );
393 vout_Request( p_filter, p_sys->p_thread->p_vout, 0 );
394 vlc_mutex_destroy( &p_sys->p_thread->lock );
395 vlc_cond_destroy( &p_sys->p_thread->wait );
396 vlc_object_detach( p_sys->p_thread );
398 while( p_sys->p_thread->i_blocks-- )
400 block_Release( p_sys->p_thread->pp_blocks[p_sys->p_thread->i_blocks] );
403 vlc_object_destroy( p_sys->p_thread );
408 static char *TitleGet( vlc_object_t *p_this )
410 char *psz_title = NULL;
411 input_thread_t *p_input =
412 vlc_object_find( p_this, VLC_OBJECT_INPUT, FIND_ANYWHERE );
416 char *psz = strrchr( p_input->input.p_item->psz_uri, '/' );
424 psz = p_input->input.p_item->psz_uri;
428 psz_title = strdup( psz );
430 vlc_object_release( p_input );