1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2008 Laurent Aimar
7 * Authors: Laurent Aimar < fenrir _AT_ videolan _DOT_ 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 *****************************************************************************/
31 #include <vlc_common.h>
36 #include "../libvlc.h"
37 #include "../stream_output/stream_output.h"
38 #include "../audio_output/aout_internal.h"
39 #include "../video_output/vout_control.h"
40 #include "input_interface.h"
43 struct input_resource_t
45 /* This lock is used to serialize request and protect
50 input_thread_t *p_input;
52 sout_instance_t *p_sout;
53 vout_thread_t *p_vout_free;
54 aout_instance_t *p_aout;
56 /* This lock is used to protect vout resources access (for hold)
57 * It is a special case because of embed video (possible deadlock
58 * between vout window request and vout holds in some(qt4) interface) */
59 vlc_mutex_t lock_vout;
61 vout_thread_t **pp_vout;
65 static void DestroySout( input_resource_t *p_resource )
68 if( p_resource->p_sout )
69 sout_DeleteInstance( p_resource->p_sout );
71 p_resource->p_sout = NULL;
74 static sout_instance_t *DetachSout( input_resource_t *p_resource )
76 sout_instance_t *p_sout = p_resource->p_sout;
77 p_resource->p_sout = NULL;
82 static sout_instance_t *RequestSout( input_resource_t *p_resource,
83 sout_instance_t *p_sout, const char *psz_sout )
86 if( !p_sout && !psz_sout )
88 if( p_resource->p_sout )
89 msg_Dbg( p_resource->p_sout, "destroying useless sout" );
90 DestroySout( p_resource );
94 assert( p_resource->p_input );
95 assert( !p_sout || ( !p_resource->p_sout && !psz_sout ) );
97 /* Check the validity of the sout */
98 if( p_resource->p_sout &&
99 strcmp( p_resource->p_sout->psz_sout, psz_sout ) )
101 msg_Dbg( p_resource->p_input, "destroying unusable sout" );
102 DestroySout( p_resource );
107 if( p_resource->p_sout )
110 msg_Dbg( p_resource->p_input, "reusing sout" );
111 msg_Dbg( p_resource->p_input, "you probably want to use gather stream_out" );
112 vlc_object_attach( p_resource->p_sout, p_resource->p_input );
116 /* Create a new one */
117 p_resource->p_sout = sout_NewInstance( p_resource->p_input, psz_sout );
120 p_sout = p_resource->p_sout;
121 p_resource->p_sout = NULL;
127 vlc_object_detach( p_sout );
128 p_resource->p_sout = p_sout;
138 static void DestroyVout( input_resource_t *p_resource )
140 assert( p_resource->i_vout == 0 );
142 if( p_resource->p_vout_free )
143 vout_CloseAndRelease( p_resource->p_vout_free );
145 p_resource->p_vout_free = NULL;
147 static vout_thread_t *DetachVout( input_resource_t *p_resource )
149 assert( p_resource->i_vout == 0 );
150 vout_thread_t *p_vout = p_resource->p_vout_free;
151 p_resource->p_vout_free = NULL;
156 static void DisplayVoutTitle( input_resource_t *p_resource,
157 vout_thread_t *p_vout )
159 assert( p_resource->p_input );
161 /* TODO display the title only one time for the same input ? */
163 input_item_t *p_item = input_GetItem( p_resource->p_input );
165 char *psz_nowplaying = input_item_GetNowPlaying( p_item );
166 if( psz_nowplaying && *psz_nowplaying )
168 vout_DisplayTitle( p_vout, psz_nowplaying );
172 char *psz_artist = input_item_GetArtist( p_item );
173 char *psz_name = input_item_GetTitle( p_item );
175 if( !psz_name || *psz_name == '\0' )
178 psz_name = input_item_GetName( p_item );
180 if( psz_artist && *psz_artist )
183 if( asprintf( &psz_string, "%s - %s", psz_name, psz_artist ) != -1 )
185 vout_DisplayTitle( p_vout, psz_string );
191 vout_DisplayTitle( p_vout, psz_name );
196 free( psz_nowplaying );
198 static vout_thread_t *RequestVout( input_resource_t *p_resource,
199 vout_thread_t *p_vout, video_format_t *p_fmt,
202 if( !p_vout && !p_fmt )
204 if( p_resource->p_vout_free )
206 msg_Dbg( p_resource->p_vout_free, "destroying useless vout" );
207 vout_CloseAndRelease( p_resource->p_vout_free );
208 p_resource->p_vout_free = NULL;
213 assert( p_resource->p_input );
217 if( !p_vout && p_resource->p_vout_free )
219 msg_Dbg( p_resource->p_input, "trying to reuse free vout" );
220 p_vout = p_resource->p_vout_free;
222 p_resource->p_vout_free = NULL;
226 assert( p_vout != p_resource->p_vout_free );
228 vlc_mutex_lock( &p_resource->lock_vout );
229 TAB_REMOVE( p_resource->i_vout, p_resource->pp_vout, p_vout );
230 vlc_mutex_unlock( &p_resource->lock_vout );
234 p_vout = vout_Request( p_resource->p_input, p_vout, p_fmt );
238 DisplayVoutTitle( p_resource, p_vout );
240 vlc_mutex_lock( &p_resource->lock_vout );
241 TAB_APPEND( p_resource->i_vout, p_resource->pp_vout, p_vout );
242 vlc_mutex_unlock( &p_resource->lock_vout );
250 vlc_mutex_lock( &p_resource->lock_vout );
251 TAB_REMOVE( p_resource->i_vout, p_resource->pp_vout, p_vout );
252 const int i_vout_active = p_resource->i_vout;
253 vlc_mutex_unlock( &p_resource->lock_vout );
255 if( p_resource->p_vout_free || i_vout_active > 0 || !b_recycle )
258 msg_Dbg( p_resource->p_input, "detroying vout (already one saved or active)" );
259 vout_CloseAndRelease( p_vout );
263 msg_Dbg( p_resource->p_input, "saving a free vout" );
264 vout_Flush( p_vout, 1 );
265 spu_Control( p_vout->p_spu, SPU_CHANNEL_CLEAR, -1 );
267 p_resource->p_vout_free = p_vout;
272 static vout_thread_t *HoldVout( input_resource_t *p_resource )
274 if( p_resource->i_vout <= 0 )
277 /* TODO FIXME: p_resource->pp_vout order is NOT stable */
278 vlc_mutex_lock( &p_resource->lock_vout );
280 vout_thread_t *p_vout = p_resource->pp_vout[0];
282 vlc_object_hold( p_vout );
284 vlc_mutex_unlock( &p_resource->lock_vout );
288 static void HoldVouts( input_resource_t *p_resource, vout_thread_t ***ppp_vout, int *pi_vout )
290 vout_thread_t **pp_vout;
295 vlc_mutex_lock( &p_resource->lock_vout );
297 if( p_resource->i_vout <= 0 )
300 pp_vout = calloc( p_resource->i_vout, sizeof(*pp_vout) );
305 *pi_vout = p_resource->i_vout;
307 for( int i = 0; i < p_resource->i_vout; i++ )
309 pp_vout[i] = p_resource->pp_vout[i];
310 vlc_object_hold( pp_vout[i] );
314 vlc_mutex_unlock( &p_resource->lock_vout );
318 static void DestroyAout( input_resource_t *p_resource )
320 if( p_resource->p_aout )
321 vlc_object_release( p_resource->p_aout );
322 p_resource->p_aout = NULL;
324 static aout_instance_t *DetachAout( input_resource_t *p_resource )
326 aout_instance_t *p_aout = p_resource->p_aout;
327 p_resource->p_aout = NULL;
332 static aout_instance_t *RequestAout( input_resource_t *p_resource, aout_instance_t *p_aout )
334 assert( p_resource->p_input );
338 msg_Dbg( p_resource->p_input, "releasing aout" );
339 vlc_object_release( p_aout );
344 if( !p_resource->p_aout )
346 msg_Dbg( p_resource->p_input, "creating aout" );
347 p_resource->p_aout = aout_New( p_resource->p_input );
351 msg_Dbg( p_resource->p_input, "reusing aout" );
354 if( !p_resource->p_aout )
357 vlc_object_detach( p_resource->p_aout );
358 vlc_object_attach( p_resource->p_aout, p_resource->p_input );
359 vlc_object_hold( p_resource->p_aout );
360 return p_resource->p_aout;
363 static aout_instance_t *HoldAout( input_resource_t *p_resource )
365 if( !p_resource->p_aout )
368 aout_instance_t *p_aout = p_resource->p_aout;
370 vlc_object_hold( p_aout );
376 input_resource_t *input_resource_New( void )
378 input_resource_t *p_resource = calloc( 1, sizeof(*p_resource) );
382 vlc_mutex_init( &p_resource->lock );
383 vlc_mutex_init( &p_resource->lock_vout );
387 void input_resource_Delete( input_resource_t *p_resource )
389 DestroySout( p_resource );
390 DestroyVout( p_resource );
391 DestroyAout( p_resource );
393 vlc_mutex_destroy( &p_resource->lock_vout );
394 vlc_mutex_destroy( &p_resource->lock );
398 void input_resource_SetInput( input_resource_t *p_resource, input_thread_t *p_input )
400 vlc_mutex_lock( &p_resource->lock );
402 if( p_resource->p_input && !p_input )
404 if( p_resource->p_aout )
405 vlc_object_detach( p_resource->p_aout );
407 assert( p_resource->i_vout == 0 );
408 if( p_resource->p_vout_free )
409 vlc_object_detach( p_resource->p_vout_free );
411 if( p_resource->p_sout )
412 vlc_object_detach( p_resource->p_sout );
416 p_resource->p_input = p_input;
418 vlc_mutex_unlock( &p_resource->lock );
421 input_resource_t *input_resource_Detach( input_resource_t *p_resource )
423 input_resource_t *p_ret = input_resource_New();
427 vlc_mutex_lock( &p_resource->lock );
428 assert( !p_resource->p_input );
429 p_ret->p_sout = DetachSout( p_resource );
430 p_ret->p_vout_free = DetachVout( p_resource );
431 p_ret->p_aout = DetachAout( p_resource );
432 vlc_mutex_unlock( &p_resource->lock );
437 vout_thread_t *input_resource_RequestVout( input_resource_t *p_resource,
438 vout_thread_t *p_vout, video_format_t *p_fmt, bool b_recycle )
440 vlc_mutex_lock( &p_resource->lock );
441 vout_thread_t *p_ret = RequestVout( p_resource, p_vout, p_fmt, b_recycle );
442 vlc_mutex_unlock( &p_resource->lock );
446 vout_thread_t *input_resource_HoldVout( input_resource_t *p_resource )
448 return HoldVout( p_resource );
450 void input_resource_HoldVouts( input_resource_t *p_resource, vout_thread_t ***ppp_vout, int *pi_vout )
452 HoldVouts( p_resource, ppp_vout, pi_vout );
454 void input_resource_TerminateVout( input_resource_t *p_resource )
456 input_resource_RequestVout( p_resource, NULL, NULL, false );
458 bool input_resource_HasVout( input_resource_t *p_resource )
460 vlc_mutex_lock( &p_resource->lock );
461 assert( !p_resource->p_input );
462 const bool b_vout = p_resource->p_vout_free != NULL;
463 vlc_mutex_unlock( &p_resource->lock );
469 aout_instance_t *input_resource_RequestAout( input_resource_t *p_resource, aout_instance_t *p_aout )
471 vlc_mutex_lock( &p_resource->lock );
472 aout_instance_t *p_ret = RequestAout( p_resource, p_aout );
473 vlc_mutex_unlock( &p_resource->lock );
477 aout_instance_t *input_resource_HoldAout( input_resource_t *p_resource )
479 vlc_mutex_lock( &p_resource->lock );
480 aout_instance_t *p_ret = HoldAout( p_resource );
481 vlc_mutex_unlock( &p_resource->lock );
486 sout_instance_t *input_resource_RequestSout( input_resource_t *p_resource, sout_instance_t *p_sout, const char *psz_sout )
488 vlc_mutex_lock( &p_resource->lock );
489 sout_instance_t *p_ret = RequestSout( p_resource, p_sout, psz_sout );
490 vlc_mutex_unlock( &p_resource->lock );
494 void input_resource_TerminateSout( input_resource_t *p_resource )
496 input_resource_RequestSout( p_resource, NULL, NULL );