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 *****************************************************************************/
33 #include <vlc_common.h>
38 #include "../libvlc.h"
39 #include "../stream_output/stream_output.h"
40 #include "../audio_output/aout_internal.h"
41 #include "../video_output/vout_control.h"
42 #include "input_interface.h"
45 struct input_resource_t
49 vlc_object_t
*p_parent
;
51 /* This lock is used to serialize request and protect
56 input_thread_t
*p_input
;
58 sout_instance_t
*p_sout
;
59 vout_thread_t
*p_vout_free
;
61 /* This lock is used to protect vout resources access (for hold)
62 * It is a special case because of embed video (possible deadlock
63 * between vout window request and vout holds in some(qt4) interface)
65 vlc_mutex_t lock_hold
;
67 /* You need lock+lock_hold to write to the following variables and
68 * only lock or lock_hold to read them */
71 vout_thread_t
**pp_vout
;
73 aout_instance_t
*p_aout
;
77 static void DestroySout( input_resource_t
*p_resource
)
80 if( p_resource
->p_sout
)
81 sout_DeleteInstance( p_resource
->p_sout
);
83 p_resource
->p_sout
= NULL
;
86 static sout_instance_t
*RequestSout( input_resource_t
*p_resource
,
87 sout_instance_t
*p_sout
, const char *psz_sout
)
90 if( !p_sout
&& !psz_sout
)
92 if( p_resource
->p_sout
)
93 msg_Dbg( p_resource
->p_sout
, "destroying useless sout" );
94 DestroySout( p_resource
);
98 assert( p_resource
->p_input
);
99 assert( !p_sout
|| ( !p_resource
->p_sout
&& !psz_sout
) );
101 /* Check the validity of the sout */
102 if( p_resource
->p_sout
&&
103 strcmp( p_resource
->p_sout
->psz_sout
, psz_sout
) )
105 msg_Dbg( p_resource
->p_parent
, "destroying unusable sout" );
106 DestroySout( p_resource
);
111 if( p_resource
->p_sout
)
114 msg_Dbg( p_resource
->p_parent
, "reusing sout" );
115 msg_Dbg( p_resource
->p_parent
, "you probably want to use gather stream_out" );
119 /* Create a new one */
120 p_resource
->p_sout
= sout_NewInstance( p_resource
->p_parent
, psz_sout
);
123 p_sout
= p_resource
->p_sout
;
124 p_resource
->p_sout
= NULL
;
130 p_resource
->p_sout
= p_sout
;
139 static void DestroyVout( input_resource_t
*p_resource
)
141 assert( p_resource
->i_vout
== 0 );
143 if( p_resource
->p_vout_free
)
144 vout_CloseAndRelease( p_resource
->p_vout_free
);
146 p_resource
->p_vout_free
= NULL
;
149 static void DisplayVoutTitle( input_resource_t
*p_resource
,
150 vout_thread_t
*p_vout
)
152 assert( p_resource
->p_input
);
154 /* TODO display the title only one time for the same input ? */
156 input_item_t
*p_item
= input_GetItem( p_resource
->p_input
);
158 char *psz_nowplaying
= input_item_GetNowPlaying( p_item
);
159 if( psz_nowplaying
&& *psz_nowplaying
)
161 vout_DisplayTitle( p_vout
, psz_nowplaying
);
165 char *psz_artist
= input_item_GetArtist( p_item
);
166 char *psz_name
= input_item_GetTitle( p_item
);
168 if( !psz_name
|| *psz_name
== '\0' )
171 psz_name
= input_item_GetName( p_item
);
173 if( psz_artist
&& *psz_artist
)
176 if( asprintf( &psz_string
, "%s - %s", psz_name
, psz_artist
) != -1 )
178 vout_DisplayTitle( p_vout
, psz_string
);
184 vout_DisplayTitle( p_vout
, psz_name
);
189 free( psz_nowplaying
);
191 static vout_thread_t
*RequestVout( input_resource_t
*p_resource
,
192 vout_thread_t
*p_vout
,
193 video_format_t
*p_fmt
, unsigned dpb_size
,
196 vlc_assert_locked( &p_resource
->lock
);
198 if( !p_vout
&& !p_fmt
)
200 if( p_resource
->p_vout_free
)
202 msg_Dbg( p_resource
->p_vout_free
, "destroying useless vout" );
203 vout_CloseAndRelease( p_resource
->p_vout_free
);
204 p_resource
->p_vout_free
= NULL
;
209 assert( p_resource
->p_input
);
213 if( !p_vout
&& p_resource
->p_vout_free
)
215 msg_Dbg( p_resource
->p_parent
, "trying to reuse free vout" );
216 p_vout
= p_resource
->p_vout_free
;
218 p_resource
->p_vout_free
= NULL
;
222 assert( p_vout
!= p_resource
->p_vout_free
);
224 vlc_mutex_lock( &p_resource
->lock_hold
);
225 TAB_REMOVE( p_resource
->i_vout
, p_resource
->pp_vout
, p_vout
);
226 vlc_mutex_unlock( &p_resource
->lock_hold
);
230 vout_configuration_t cfg
= {
232 .input
= VLC_OBJECT(p_resource
->p_input
),
235 .dpb_size
= dpb_size
,
237 p_vout
= vout_Request( p_resource
->p_parent
, &cfg
);
241 DisplayVoutTitle( p_resource
, p_vout
);
243 vlc_mutex_lock( &p_resource
->lock_hold
);
244 TAB_APPEND( p_resource
->i_vout
, p_resource
->pp_vout
, p_vout
);
245 vlc_mutex_unlock( &p_resource
->lock_hold
);
253 vlc_mutex_lock( &p_resource
->lock_hold
);
254 TAB_REMOVE( p_resource
->i_vout
, p_resource
->pp_vout
, p_vout
);
255 const int i_vout_active
= p_resource
->i_vout
;
256 vlc_mutex_unlock( &p_resource
->lock_hold
);
258 if( p_resource
->p_vout_free
|| i_vout_active
> 0 || !b_recycle
)
261 msg_Dbg( p_resource
->p_parent
, "detroying vout (already one saved or active)" );
262 vout_CloseAndRelease( p_vout
);
266 msg_Dbg( p_resource
->p_parent
, "saving a free vout" );
267 vout_Flush( p_vout
, 1 );
268 vout_FlushSubpictureChannel( p_vout
, -1 );
270 vout_configuration_t cfg
= {
277 p_resource
->p_vout_free
= vout_Request( p_resource
->p_parent
, &cfg
);
282 static vout_thread_t
*HoldVout( input_resource_t
*p_resource
)
284 /* TODO FIXME: p_resource->pp_vout order is NOT stable */
285 vlc_mutex_lock( &p_resource
->lock_hold
);
287 vout_thread_t
*p_vout
= p_resource
->i_vout
> 0 ? p_resource
->pp_vout
[0] : NULL
;
289 vlc_object_hold( p_vout
);
291 vlc_mutex_unlock( &p_resource
->lock_hold
);
296 static void HoldVouts( input_resource_t
*p_resource
, vout_thread_t
***ppp_vout
,
299 vout_thread_t
**pp_vout
;
304 vlc_mutex_lock( &p_resource
->lock_hold
);
306 if( p_resource
->i_vout
<= 0 )
309 pp_vout
= malloc( p_resource
->i_vout
* sizeof(*pp_vout
) );
314 *pi_vout
= p_resource
->i_vout
;
316 for( int i
= 0; i
< p_resource
->i_vout
; i
++ )
318 pp_vout
[i
] = p_resource
->pp_vout
[i
];
319 vlc_object_hold( pp_vout
[i
] );
323 vlc_mutex_unlock( &p_resource
->lock_hold
);
327 static void DestroyAout( input_resource_t
*p_resource
)
329 if( p_resource
->p_aout
)
330 vlc_object_release( p_resource
->p_aout
);
331 p_resource
->p_aout
= NULL
;
333 static aout_instance_t
*RequestAout( input_resource_t
*p_resource
, aout_instance_t
*p_aout
)
335 vlc_assert_locked( &p_resource
->lock
);
336 assert( p_resource
->p_input
);
340 msg_Dbg( p_resource
->p_parent
, "releasing aout" );
341 vlc_object_release( p_aout
);
346 p_aout
= p_resource
->p_aout
;
349 msg_Dbg( p_resource
->p_parent
, "creating aout" );
350 p_aout
= aout_New( p_resource
->p_parent
);
352 vlc_mutex_lock( &p_resource
->lock_hold
);
353 p_resource
->p_aout
= p_aout
;
354 vlc_mutex_unlock( &p_resource
->lock_hold
);
358 msg_Dbg( p_resource
->p_parent
, "reusing aout" );
363 vlc_object_hold( p_aout
);
367 static aout_instance_t
*HoldAout( input_resource_t
*p_resource
)
369 vlc_mutex_lock( &p_resource
->lock_hold
);
371 aout_instance_t
*p_aout
= p_resource
->p_aout
;
373 vlc_object_hold( p_aout
);
375 vlc_mutex_unlock( &p_resource
->lock_hold
);
379 static void TerminateAout( input_resource_t
*p_resource
)
381 vlc_mutex_lock( &p_resource
->lock_hold
);
383 aout_instance_t
*p_aout
= p_resource
->p_aout
;
384 p_resource
->p_aout
= NULL
;
386 vlc_mutex_unlock( &p_resource
->lock_hold
);
389 vlc_object_release( p_aout
);
392 static void Destructor( gc_object_t
*p_gc
)
394 input_resource_t
*p_resource
= vlc_priv( p_gc
, input_resource_t
);
396 DestroySout( p_resource
);
397 DestroyVout( p_resource
);
398 DestroyAout( p_resource
);
400 vlc_mutex_destroy( &p_resource
->lock_hold
);
401 vlc_mutex_destroy( &p_resource
->lock
);
406 input_resource_t
*input_resource_New( vlc_object_t
*p_parent
)
408 input_resource_t
*p_resource
= calloc( 1, sizeof(*p_resource
) );
412 vlc_gc_init( p_resource
, Destructor
);
413 p_resource
->p_parent
= p_parent
;
414 vlc_mutex_init( &p_resource
->lock
);
415 vlc_mutex_init( &p_resource
->lock_hold
);
419 void input_resource_Release( input_resource_t
*p_resource
)
421 vlc_gc_decref( p_resource
);
424 input_resource_t
*input_resource_Hold( input_resource_t
*p_resource
)
426 vlc_gc_incref( p_resource
);
430 void input_resource_SetInput( input_resource_t
*p_resource
, input_thread_t
*p_input
)
432 vlc_mutex_lock( &p_resource
->lock
);
434 if( p_resource
->p_input
&& !p_input
)
435 assert( p_resource
->i_vout
== 0 );
438 p_resource
->p_input
= p_input
;
440 vlc_mutex_unlock( &p_resource
->lock
);
443 vout_thread_t
*input_resource_RequestVout( input_resource_t
*p_resource
,
444 vout_thread_t
*p_vout
,
445 video_format_t
*p_fmt
, unsigned dpb_size
,
448 vlc_mutex_lock( &p_resource
->lock
);
449 vout_thread_t
*p_ret
= RequestVout( p_resource
, p_vout
, p_fmt
, dpb_size
, b_recycle
);
450 vlc_mutex_unlock( &p_resource
->lock
);
454 vout_thread_t
*input_resource_HoldVout( input_resource_t
*p_resource
)
456 return HoldVout( p_resource
);
459 void input_resource_HoldVouts( input_resource_t
*p_resource
, vout_thread_t
***ppp_vout
,
462 HoldVouts( p_resource
, ppp_vout
, pi_vout
);
465 void input_resource_TerminateVout( input_resource_t
*p_resource
)
467 input_resource_RequestVout( p_resource
, NULL
, NULL
, 0, false );
469 bool input_resource_HasVout( input_resource_t
*p_resource
)
471 vlc_mutex_lock( &p_resource
->lock
);
472 assert( !p_resource
->p_input
);
473 const bool b_vout
= p_resource
->p_vout_free
!= NULL
;
474 vlc_mutex_unlock( &p_resource
->lock
);
480 aout_instance_t
*input_resource_RequestAout( input_resource_t
*p_resource
, aout_instance_t
*p_aout
)
482 vlc_mutex_lock( &p_resource
->lock
);
483 aout_instance_t
*p_ret
= RequestAout( p_resource
, p_aout
);
484 vlc_mutex_unlock( &p_resource
->lock
);
488 aout_instance_t
*input_resource_HoldAout( input_resource_t
*p_resource
)
490 return HoldAout( p_resource
);
494 sout_instance_t
*input_resource_RequestSout( input_resource_t
*p_resource
, sout_instance_t
*p_sout
, const char *psz_sout
)
496 vlc_mutex_lock( &p_resource
->lock
);
497 sout_instance_t
*p_ret
= RequestSout( p_resource
, p_sout
, psz_sout
);
498 vlc_mutex_unlock( &p_resource
->lock
);
502 void input_resource_TerminateSout( input_resource_t
*p_resource
)
504 input_resource_RequestSout( p_resource
, NULL
, NULL
);
507 void input_resource_Terminate( input_resource_t
*p_resource
)
509 input_resource_TerminateSout( p_resource
);
511 vlc_mutex_lock( &p_resource
->lock
);
512 TerminateAout( p_resource
);
513 vlc_mutex_unlock( &p_resource
->lock
);
515 input_resource_TerminateVout( p_resource
);