1 /*****************************************************************************
2 * es_out_timeshift.c: Es Out timeshift.
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 *****************************************************************************/
35 #if defined (WIN32) && !defined (UNDER_CE)
38 #ifdef HAVE_SYS_STAT_H
39 # include <sys/stat.h>
42 #include <vlc_common.h>
43 #include <vlc_charset.h>
45 #include <vlc_input.h>
46 #include <vlc_es_out.h>
47 #include <vlc_block.h>
48 #include "input_internal.h"
50 #include "es_out_timeshift.h"
52 /*****************************************************************************
54 *****************************************************************************/
131 ts_cmd_control_t control;
135 typedef struct ts_storage_t ts_storage_t;
138 ts_storage_t *p_next;
141 char *psz_file; /* Filename */
142 int64_t i_file_max; /* Max size in bytes */
143 int64_t i_file_size;/* Current size in bytes */
144 FILE *p_filew; /* FILE handle for data writing */
145 FILE *p_filer; /* FILE handle for data reading */
159 input_thread_t *p_input;
161 int64_t i_tmp_size_max;
162 const char *psz_tmp_path;
164 /* Lock for all following fields */
170 mtime_t i_pause_date;
176 mtime_t i_rate_delay;
179 mtime_t i_buffering_delay;
182 ts_storage_t *p_storage_r;
183 ts_storage_t *p_storage_w;
196 input_thread_t *p_input;
200 int64_t i_tmp_size_max; /* Maximal temporary file size in byte */
201 char *psz_tmp_path; /* Path for temporary files */
203 /* Lock for all following fields */
208 ts_thread_t *p_thread;
212 bool b_input_paused_source;
214 int i_input_rate_source;
221 static es_out_id_t *Add ( es_out_t *, const es_format_t * );
222 static int Send ( es_out_t *, es_out_id_t *, block_t * );
223 static void Del ( es_out_t *, es_out_id_t * );
224 static int Control( es_out_t *, int i_query, va_list );
225 static void Destroy( es_out_t * );
227 static int TsStart( es_out_t * );
228 static void TsAutoStop( es_out_t * );
230 static void TsStop( ts_thread_t * );
231 static void TsPushCmd( ts_thread_t *, ts_cmd_t * );
232 static int TsPopCmdLocked( ts_thread_t *, ts_cmd_t * );
233 static bool TsHasCmd( ts_thread_t * );
234 static bool TsIsUnused( ts_thread_t * );
235 static int TsChangePause( ts_thread_t *, bool b_source_paused, bool b_paused, mtime_t i_date );
236 static int TsChangeRate( ts_thread_t *, int i_src_rate, int i_rate );
238 static void *TsRun( vlc_object_t * );
240 static ts_storage_t *TsStorageNew( const char *psz_path, int64_t i_tmp_size_max );
241 static void TsStorageDelete( ts_storage_t * );
242 static void TsStoragePack( ts_storage_t *p_storage );
243 static bool TsStorageIsFull( ts_storage_t *, const ts_cmd_t *p_cmd );
244 static bool TsStorageIsEmpty( ts_storage_t * );
245 static void TsStoragePushCmd( ts_storage_t *, const ts_cmd_t *p_cmd, bool b_flush );
246 static void TsStoragePopCmd( ts_storage_t *p_storage, ts_cmd_t *p_cmd );
248 static void CmdClean( ts_cmd_t * );
249 static void cmd_cleanup_routine( void *p ) { CmdClean( p ); }
251 static int CmdInitAdd ( ts_cmd_t *, es_out_id_t *, const es_format_t *, bool b_copy );
252 static void CmdInitSend ( ts_cmd_t *, es_out_id_t *, block_t * );
253 static int CmdInitDel ( ts_cmd_t *, es_out_id_t * );
254 static int CmdInitControl( ts_cmd_t *, int i_query, va_list, bool b_copy );
257 static void CmdCleanAdd ( ts_cmd_t * );
258 static void CmdCleanSend ( ts_cmd_t * );
259 static void CmdCleanControl( ts_cmd_t *p_cmd );
261 /* XXX these functions will take the destination es_out_t */
262 static void CmdExecuteAdd ( es_out_t *, ts_cmd_t * );
263 static int CmdExecuteSend ( es_out_t *, ts_cmd_t * );
264 static void CmdExecuteDel ( es_out_t *, ts_cmd_t * );
265 static int CmdExecuteControl( es_out_t *, ts_cmd_t * );
268 static char *GetTmpPath( char *psz_path );
269 static FILE *GetTmpFile( char **ppsz_file, const char *psz_path );
271 /*****************************************************************************
272 * input_EsOutTimeshiftNew:
273 *****************************************************************************/
274 es_out_t *input_EsOutTimeshiftNew( input_thread_t *p_input, es_out_t *p_next_out, int i_rate )
276 es_out_t *p_out = malloc( sizeof(*p_out) );
280 es_out_sys_t *p_sys = malloc( sizeof(*p_sys) );
289 p_out->pf_send = Send;
291 p_out->pf_control = Control;
292 p_out->pf_destroy = Destroy;
293 p_out->p_sys = p_sys;
294 p_out->b_sout = p_input->p->p_sout != NULL;
297 p_sys->b_input_paused = false;
298 p_sys->b_input_paused_source = false;
299 p_sys->p_input = p_input;
300 p_sys->i_input_rate = i_rate;
301 p_sys->i_input_rate_source = i_rate;
303 p_sys->p_out = p_next_out;
304 vlc_mutex_init_recursive( &p_sys->lock );
306 p_sys->b_delayed = false;
307 p_sys->p_thread = NULL;
309 TAB_INIT( p_sys->i_es, p_sys->pp_es );
312 * timeshift-granularity
315 p_sys->i_tmp_size_max = 50 * 1024*1024;
316 p_sys->psz_tmp_path = GetTmpPath( NULL );
321 /*****************************************************************************
323 *****************************************************************************/
324 static void Destroy( es_out_t *p_out )
326 es_out_sys_t *p_sys = p_out->p_sys;
328 if( p_sys->b_delayed )
330 TsStop( p_sys->p_thread );
331 p_sys->b_delayed = false;
334 while( p_sys->i_es > 0 )
335 Del( p_out, p_sys->pp_es[0] );
336 TAB_CLEAN( p_sys->i_es, p_sys->pp_es );
338 free( p_sys->psz_tmp_path );
339 vlc_mutex_destroy( &p_sys->lock );
344 static es_out_id_t *Add( es_out_t *p_out, const es_format_t *p_fmt )
346 es_out_sys_t *p_sys = p_out->p_sys;
349 es_out_id_t *p_es = malloc( sizeof( *p_es ) );
353 vlc_mutex_lock( &p_sys->lock );
357 if( CmdInitAdd( &cmd, p_es, p_fmt, p_sys->b_delayed ) )
359 vlc_mutex_unlock( &p_sys->lock );
364 TAB_APPEND( p_sys->i_es, p_sys->pp_es, p_es );
366 if( p_sys->b_delayed )
367 TsPushCmd( p_sys->p_thread, &cmd );
369 CmdExecuteAdd( p_sys->p_out, &cmd );
371 vlc_mutex_unlock( &p_sys->lock );
375 static int Send( es_out_t *p_out, es_out_id_t *p_es, block_t *p_block )
377 es_out_sys_t *p_sys = p_out->p_sys;
379 int i_ret = VLC_SUCCESS;
381 vlc_mutex_lock( &p_sys->lock );
385 CmdInitSend( &cmd, p_es, p_block );
386 if( p_sys->b_delayed )
387 TsPushCmd( p_sys->p_thread, &cmd );
389 i_ret = CmdExecuteSend( p_sys->p_out, &cmd) ;
391 vlc_mutex_unlock( &p_sys->lock );
395 static void Del( es_out_t *p_out, es_out_id_t *p_es )
397 es_out_sys_t *p_sys = p_out->p_sys;
400 vlc_mutex_lock( &p_sys->lock );
404 CmdInitDel( &cmd, p_es );
405 if( p_sys->b_delayed )
406 TsPushCmd( p_sys->p_thread, &cmd );
408 CmdExecuteDel( p_sys->p_out, &cmd );
410 TAB_REMOVE( p_sys->i_es, p_sys->pp_es, p_es );
412 vlc_mutex_unlock( &p_sys->lock );
415 static int ControlLockedGetEmpty( es_out_t *p_out, bool *pb_empty )
417 es_out_sys_t *p_sys = p_out->p_sys;
419 if( p_sys->b_delayed && TsHasCmd( p_sys->p_thread ) )
422 *pb_empty = es_out_GetEmpty( p_sys->p_out );
426 static int ControlLockedGetWakeup( es_out_t *p_out, mtime_t *pi_wakeup )
428 es_out_sys_t *p_sys = p_out->p_sys;
430 if( p_sys->b_delayed )
432 assert( !p_sys->p_input->b_can_pace_control );
437 *pi_wakeup = es_out_GetWakeup( p_sys->p_out );
442 static int ControlLockedGetBuffering( es_out_t *p_out, bool *pb_buffering )
444 es_out_sys_t *p_sys = p_out->p_sys;
446 if( p_sys->b_delayed )
447 *pb_buffering = true;
449 *pb_buffering = es_out_GetBuffering( p_sys->p_out );
453 static int ControlLockedSetPauseState( es_out_t *p_out, bool b_source_paused, bool b_paused, mtime_t i_date )
455 es_out_sys_t *p_sys = p_out->p_sys;
458 if( !p_sys->b_delayed && !b_source_paused == !b_paused )
460 i_ret = es_out_SetPauseState( p_sys->p_out, b_source_paused, b_paused, i_date );
464 i_ret = VLC_EGENERIC;
465 if( !p_sys->p_input->b_can_pace_control )
467 if( !p_sys->b_delayed )
469 if( p_sys->b_delayed )
470 i_ret = TsChangePause( p_sys->p_thread, b_source_paused, b_paused, i_date );
474 /* XXX we may do it BUT it would be better to finish the clock clean up+improvments
475 * and so be able to advertize correctly pace control property in access
477 msg_Err( p_sys->p_input, "EsOutTimeshift does not work with streams that have space control" );
483 p_sys->b_input_paused_source = b_source_paused;
484 p_sys->b_input_paused = b_paused;
488 static int ControlLockedSetRate( es_out_t *p_out, int i_src_rate, int i_rate )
490 es_out_sys_t *p_sys = p_out->p_sys;
493 if( !p_sys->b_delayed && i_src_rate == i_rate )
495 i_ret = es_out_SetRate( p_sys->p_out, i_src_rate, i_rate );
499 i_ret = VLC_EGENERIC;
500 if( !p_sys->p_input->b_can_pace_control )
502 if( !p_sys->b_delayed )
504 if( p_sys->b_delayed )
505 i_ret = TsChangeRate( p_sys->p_thread, i_src_rate, i_rate );
509 /* XXX we may do it BUT it would be better to finish the clock clean up+improvments
510 * and so be able to advertize correctly pace control property in access
512 msg_Err( p_sys->p_input, "EsOutTimeshift does not work with streams that have space control" );
519 p_sys->i_input_rate_source = i_src_rate;
520 p_sys->i_input_rate = i_rate;
524 static int ControlLockedSetTime( es_out_t *p_out, mtime_t i_date )
526 es_out_sys_t *p_sys = p_out->p_sys;
528 if( !p_sys->b_delayed )
529 return es_out_SetTime( p_sys->p_out, i_date );
532 msg_Err( p_sys->p_input, "EsOutTimeshift does not yet support time change" );
535 static int ControlLockedSetFrameNext( es_out_t *p_out )
537 es_out_sys_t *p_sys = p_out->p_sys;
539 return es_out_SetFrameNext( p_sys->p_out );
542 static int ControlLocked( es_out_t *p_out, int i_query, va_list args )
544 es_out_sys_t *p_sys = p_out->p_sys;
548 /* Invalid query for this es_out level */
549 case ES_OUT_SET_ES_BY_ID:
550 case ES_OUT_RESTART_ES_BY_ID:
551 case ES_OUT_SET_ES_DEFAULT_BY_ID:
552 case ES_OUT_SET_DELAY:
553 case ES_OUT_SET_RECORD_STATE:
557 /* TODO ? or to remove ? */
561 /* Pass-through control */
562 case ES_OUT_SET_ACTIVE:
563 case ES_OUT_SET_MODE:
564 case ES_OUT_SET_GROUP:
566 case ES_OUT_SET_GROUP_PCR:
567 case ES_OUT_RESET_PCR:
568 case ES_OUT_SET_NEXT_DISPLAY_TIME:
569 case ES_OUT_SET_GROUP_META:
570 case ES_OUT_SET_GROUP_EPG:
571 case ES_OUT_DEL_GROUP:
573 case ES_OUT_RESTART_ES:
574 case ES_OUT_SET_ES_DEFAULT:
575 case ES_OUT_SET_ES_STATE:
576 case ES_OUT_SET_ES_FMT:
579 if( CmdInitControl( &cmd, i_query, args, p_sys->b_delayed ) )
581 if( p_sys->b_delayed )
583 TsPushCmd( p_sys->p_thread, &cmd );
586 return CmdExecuteControl( p_sys->p_out, &cmd );
589 /* Special control when delayed */
590 case ES_OUT_GET_ES_STATE:
592 es_out_id_t *p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
593 bool *pb_enabled = (bool*)va_arg( args, bool* );
595 if( p_sys->b_delayed )
600 return es_out_Control( p_sys->p_out, ES_OUT_GET_ES_STATE, p_es, pb_enabled );
603 /* Special internal input control */
604 case ES_OUT_GET_EMPTY:
606 bool *pb_empty = (bool*)va_arg( args, bool* );
607 return ControlLockedGetEmpty( p_out, pb_empty );
609 case ES_OUT_GET_WAKE_UP: /* TODO ? */
611 mtime_t *pi_wakeup = (mtime_t*)va_arg( args, mtime_t* );
612 return ControlLockedGetWakeup( p_out, pi_wakeup );
614 case ES_OUT_GET_BUFFERING:
616 bool *pb_buffering = (bool *)va_arg( args, bool* );
617 return ControlLockedGetBuffering( p_out, pb_buffering );
619 case ES_OUT_SET_PAUSE_STATE:
621 const bool b_source_paused = (bool)va_arg( args, int );
622 const bool b_paused = (bool)va_arg( args, int );
623 const mtime_t i_date = (mtime_t) va_arg( args, mtime_t );
625 return ControlLockedSetPauseState( p_out, b_source_paused, b_paused, i_date );
627 case ES_OUT_SET_RATE:
629 const int i_src_rate = (int)va_arg( args, int );
630 const int i_rate = (int)va_arg( args, int );
632 return ControlLockedSetRate( p_out, i_src_rate, i_rate );
634 case ES_OUT_SET_TIME:
636 const mtime_t i_date = (mtime_t)va_arg( args, mtime_t );
638 return ControlLockedSetTime( p_out, i_date );
640 case ES_OUT_SET_FRAME_NEXT:
642 return ControlLockedSetFrameNext( p_out );
646 msg_Err( p_sys->p_input, "Unknown es_out_Control query !" );
651 static int Control( es_out_t *p_out, int i_query, va_list args )
653 es_out_sys_t *p_sys = p_out->p_sys;
656 vlc_mutex_lock( &p_sys->lock );
660 i_ret = ControlLocked( p_out, i_query, args );
662 vlc_mutex_unlock( &p_sys->lock );
667 /*****************************************************************************
669 *****************************************************************************/
670 static void TsDestructor( vlc_object_t *p_this )
672 ts_thread_t *p_ts = (ts_thread_t*)p_this;
674 vlc_cond_destroy( &p_ts->wait );
675 vlc_mutex_destroy( &p_ts->lock );
677 static int TsStart( es_out_t *p_out )
679 es_out_sys_t *p_sys = p_out->p_sys;
682 assert( !p_sys->b_delayed );
684 p_sys->p_thread = p_ts = vlc_custom_create( p_sys->p_input, sizeof(ts_thread_t),
685 VLC_OBJECT_GENERIC, "es out timeshift" );
689 p_ts->i_tmp_size_max = p_sys->i_tmp_size_max;
690 p_ts->psz_tmp_path = p_sys->psz_tmp_path;
691 p_ts->p_input = p_sys->p_input;
692 p_ts->p_out = p_sys->p_out;
693 vlc_mutex_init( &p_ts->lock );
694 vlc_cond_init( &p_ts->wait );
695 p_ts->b_paused = p_sys->b_input_paused && !p_sys->b_input_paused_source;
696 p_ts->i_pause_date = p_ts->b_paused ? mdate() : -1;
697 p_ts->i_rate_source = p_sys->i_input_rate_source;
698 p_ts->i_rate = p_sys->i_input_rate;
699 p_ts->i_rate_date = -1;
700 p_ts->i_rate_delay = 0;
701 p_ts->i_buffering_delay = 0;
702 p_ts->i_cmd_delay = 0;
703 p_ts->p_storage_r = NULL;
704 p_ts->p_storage_w = NULL;
706 vlc_object_set_destructor( p_ts, TsDestructor );
708 p_sys->b_delayed = true;
709 if( vlc_thread_create( p_ts, "es out timeshift",
710 TsRun, VLC_THREAD_PRIORITY_INPUT, false ) )
712 msg_Err( p_sys->p_input, "cannot create input thread" );
714 vlc_object_release( p_ts );
716 p_sys->b_delayed = false;
722 static void TsAutoStop( es_out_t *p_out )
724 es_out_sys_t *p_sys = p_out->p_sys;
726 if( !p_sys->b_delayed || !TsIsUnused( p_sys->p_thread ) )
729 msg_Warn( p_sys->p_input, "es out timeshift: auto stop" );
730 TsStop( p_sys->p_thread );
732 p_sys->b_delayed = false;
734 static void TsStop( ts_thread_t *p_ts )
736 vlc_object_kill( p_ts );
737 vlc_thread_join( p_ts );
739 vlc_mutex_lock( &p_ts->lock );
744 if( TsPopCmdLocked( p_ts, &cmd ) )
749 assert( !p_ts->p_storage_r || !p_ts->p_storage_r->p_next );
750 if( p_ts->p_storage_r )
751 TsStorageDelete( p_ts->p_storage_r );
752 vlc_mutex_unlock( &p_ts->lock );
754 vlc_object_release( p_ts );
756 static void TsPushCmd( ts_thread_t *p_ts, ts_cmd_t *p_cmd )
758 vlc_mutex_lock( &p_ts->lock );
760 if( !p_ts->p_storage_w || TsStorageIsFull( p_ts->p_storage_w, p_cmd ) )
762 ts_storage_t *p_storage = TsStorageNew( p_ts->psz_tmp_path, p_ts->i_tmp_size_max );
770 if( !p_ts->p_storage_w )
772 p_ts->p_storage_r = p_ts->p_storage_w = p_storage;
776 TsStoragePack( p_ts->p_storage_w );
777 p_ts->p_storage_w->p_next = p_storage;
778 p_ts->p_storage_w = p_storage;
782 TsStoragePushCmd( p_ts->p_storage_w, p_cmd, p_ts->p_storage_r == p_ts->p_storage_w );
784 vlc_cond_signal( &p_ts->wait );
786 vlc_mutex_unlock( &p_ts->lock );
788 static int TsPopCmdLocked( ts_thread_t *p_ts, ts_cmd_t *p_cmd )
790 vlc_assert_locked( &p_ts->lock );
792 if( TsStorageIsEmpty( p_ts->p_storage_r ) )
795 TsStoragePopCmd( p_ts->p_storage_r, p_cmd );
797 while( p_ts->p_storage_r && TsStorageIsEmpty( p_ts->p_storage_r ) )
799 ts_storage_t *p_next = p_ts->p_storage_r->p_next;
803 TsStorageDelete( p_ts->p_storage_r );
804 p_ts->p_storage_r = p_next;
809 static bool TsHasCmd( ts_thread_t *p_ts )
813 vlc_mutex_lock( &p_ts->lock );
814 b_cmd = TsStorageIsEmpty( p_ts->p_storage_r );
815 vlc_mutex_unlock( &p_ts->lock );
819 static bool TsIsUnused( ts_thread_t *p_ts )
823 vlc_mutex_lock( &p_ts->lock );
824 b_unused = !p_ts->b_paused &&
825 p_ts->i_rate == p_ts->i_rate_source &&
826 TsStorageIsEmpty( p_ts->p_storage_r );
827 vlc_mutex_unlock( &p_ts->lock );
831 static int TsChangePause( ts_thread_t *p_ts, bool b_source_paused, bool b_paused, mtime_t i_date )
833 vlc_mutex_lock( &p_ts->lock );
838 assert( !b_source_paused );
839 i_ret = es_out_SetPauseState( p_ts->p_out, true, true, i_date );
843 i_ret = es_out_SetPauseState( p_ts->p_out, false, false, i_date );
850 assert( p_ts->i_pause_date > 0 );
852 p_ts->i_cmd_delay += i_date - p_ts->i_pause_date;
855 p_ts->b_paused = b_paused;
856 p_ts->i_pause_date = i_date;
858 vlc_cond_signal( &p_ts->wait );
860 vlc_mutex_unlock( &p_ts->lock );
863 static int TsChangeRate( ts_thread_t *p_ts, int i_src_rate, int i_rate )
867 vlc_mutex_lock( &p_ts->lock );
868 p_ts->i_cmd_delay += p_ts->i_rate_delay;
870 p_ts->i_rate_date = -1;
871 p_ts->i_rate_delay = 0;
872 p_ts->i_rate = i_rate;
873 p_ts->i_rate_source = i_src_rate;
875 i_ret = es_out_SetRate( p_ts->p_out, i_rate, i_rate );
876 vlc_mutex_unlock( &p_ts->lock );
881 static void *TsRun( vlc_object_t *p_thread )
883 ts_thread_t *p_ts = (ts_thread_t*)p_thread;
884 mtime_t i_buffering_date = -1;
892 /* Pop a command to execute */
893 vlc_mutex_lock( &p_ts->lock );
894 mutex_cleanup_push( &p_ts->lock );
898 const int canc = vlc_savecancel();
899 b_buffering = es_out_GetBuffering( p_ts->p_out );
901 if( ( !p_ts->b_paused || b_buffering ) && !TsPopCmdLocked( p_ts, &cmd ) )
903 vlc_restorecancel( canc );
906 vlc_restorecancel( canc );
908 vlc_cond_wait( &p_ts->wait, &p_ts->lock );
911 if( b_buffering && i_buffering_date < 0 )
913 i_buffering_date = cmd.i_date;
915 else if( i_buffering_date > 0 )
917 p_ts->i_buffering_delay += i_buffering_date - cmd.i_date; /* It is < 0 */
919 i_buffering_date = cmd.i_date;
921 i_buffering_date = -1;
924 if( p_ts->i_rate_date < 0 )
925 p_ts->i_rate_date = cmd.i_date;
927 p_ts->i_rate_delay = 0;
928 if( p_ts->i_rate_source != p_ts->i_rate )
930 const mtime_t i_duration = cmd.i_date - p_ts->i_rate_date;
931 p_ts->i_rate_delay = i_duration * p_ts->i_rate / p_ts->i_rate_source - i_duration;
933 if( p_ts->i_cmd_delay + p_ts->i_rate_delay + p_ts->i_buffering_delay < 0 && p_ts->i_rate != p_ts->i_rate_source )
935 const int canc = vlc_savecancel();
937 /* Auto reset to rate 1.0 */
938 msg_Warn( p_ts->p_input, "es out timeshift: auto reset rate to %d", p_ts->i_rate_source );
940 p_ts->i_cmd_delay = 0;
941 p_ts->i_buffering_delay = 0;
943 p_ts->i_rate_delay = 0;
944 p_ts->i_rate_date = -1;
945 p_ts->i_rate = p_ts->i_rate_source;
947 if( !es_out_SetRate( p_ts->p_out, p_ts->i_rate_source, p_ts->i_rate ) )
949 vlc_value_t val = { .i_int = p_ts->i_rate };
951 * FIXME it is perfectly safe BUT it is ugly as it may hide a
952 * rate change requested by user */
953 input_ControlPush( p_ts->p_input, INPUT_CONTROL_SET_RATE, &val );
956 vlc_restorecancel( canc );
958 i_deadline = cmd.i_date + p_ts->i_cmd_delay + p_ts->i_rate_delay + p_ts->i_buffering_delay;
962 /* Regulate the speed of command processing to the same one than
964 vlc_cleanup_push( cmd_cleanup_routine, &cmd );
970 /* Execute the command */
971 const int canc = vlc_savecancel();
975 CmdExecuteAdd( p_ts->p_out, &cmd );
979 CmdExecuteSend( p_ts->p_out, &cmd );
980 CmdCleanSend( &cmd );
983 CmdExecuteControl( p_ts->p_out, &cmd );
984 CmdCleanControl( &cmd );
987 CmdExecuteDel( p_ts->p_out, &cmd );
993 vlc_restorecancel( canc );
999 /*****************************************************************************
1001 *****************************************************************************/
1002 static ts_storage_t *TsStorageNew( const char *psz_tmp_path, int64_t i_tmp_size_max )
1004 ts_storage_t *p_storage = calloc( 1, sizeof(ts_storage_t) );
1009 p_storage->p_next = NULL;
1012 p_storage->i_file_max = i_tmp_size_max;
1013 p_storage->i_file_size = 0;
1014 p_storage->p_filew = GetTmpFile( &p_storage->psz_file, psz_tmp_path );
1015 if( p_storage->psz_file )
1016 p_storage->p_filer = utf8_fopen( p_storage->psz_file, "rb" );
1019 p_storage->i_cmd_w = 0;
1020 p_storage->i_cmd_r = 0;
1021 p_storage->i_cmd_max = 30000;
1022 p_storage->p_cmd = malloc( p_storage->i_cmd_max * sizeof(*p_storage->p_cmd) );
1023 //fprintf( stderr, "\nSTORAGE name=%s size=%d kbytes\n", p_storage->psz_file, p_storage->i_cmd_max * sizeof(*p_storage->p_cmd) /1024 );
1025 if( !p_storage->p_cmd || !p_storage->p_filew || !p_storage->p_filer )
1027 TsStorageDelete( p_storage );
1032 static void TsStorageDelete( ts_storage_t *p_storage )
1034 while( p_storage->i_cmd_r < p_storage->i_cmd_w )
1038 TsStoragePopCmd( p_storage, &cmd );
1042 free( p_storage->p_cmd );
1044 if( p_storage->p_filer )
1045 fclose( p_storage->p_filer );
1046 if( p_storage->p_filew )
1047 fclose( p_storage->p_filew );
1049 if( p_storage->psz_file )
1051 utf8_unlink( p_storage->psz_file );
1052 free( p_storage->psz_file );
1057 static void TsStoragePack( ts_storage_t *p_storage )
1059 /* Try to release a bit of memory */
1060 if( p_storage->i_cmd_w >= p_storage->i_cmd_max )
1063 p_storage->i_cmd_max = __MAX( p_storage->i_cmd_w, 1 );
1065 ts_cmd_t *p_new = realloc( p_storage->p_cmd, p_storage->i_cmd_max * sizeof(*p_storage->p_cmd) );
1067 p_storage->p_cmd = p_new;
1069 static bool TsStorageIsFull( ts_storage_t *p_storage, const ts_cmd_t *p_cmd )
1071 if( p_cmd && p_cmd->i_type == C_SEND && p_storage->i_cmd_w > 0 )
1073 size_t i_size = sizeof(*p_cmd->send.p_block) + p_cmd->send.p_block->i_buffer;
1075 if( p_storage->i_file_size + i_size >= p_storage->i_file_max )
1078 return p_storage->i_cmd_w >= p_storage->i_cmd_max;
1080 static bool TsStorageIsEmpty( ts_storage_t *p_storage )
1082 return !p_storage || p_storage->i_cmd_r >= p_storage->i_cmd_w;
1084 static void TsStoragePushCmd( ts_storage_t *p_storage, const ts_cmd_t *p_cmd, bool b_flush )
1086 ts_cmd_t cmd = *p_cmd;
1088 assert( !TsStorageIsFull( p_storage, p_cmd ) );
1090 if( cmd.i_type == C_SEND )
1092 block_t *p_block = cmd.send.p_block;
1094 cmd.send.p_block = NULL;
1095 cmd.send.i_offset = ftell( p_storage->p_filew );
1097 if( fwrite( p_block, sizeof(*p_block), 1, p_storage->p_filew ) != 1 )
1099 block_Release( p_block );
1102 p_storage->i_file_size += sizeof(*p_block);
1103 if( p_block->i_buffer > 0 )
1105 if( fwrite( p_block->p_buffer, p_block->i_buffer, 1, p_storage->p_filew ) != 1 )
1107 block_Release( p_block );
1111 p_storage->i_file_size += p_block->i_buffer;
1112 block_Release( p_block );
1115 fflush( p_storage->p_filew );
1117 p_storage->p_cmd[p_storage->i_cmd_w++] = cmd;
1119 static void TsStoragePopCmd( ts_storage_t *p_storage, ts_cmd_t *p_cmd )
1121 assert( !TsStorageIsEmpty( p_storage ) );
1123 *p_cmd = p_storage->p_cmd[p_storage->i_cmd_r++];
1124 if( p_cmd->i_type == C_SEND )
1128 if( !fseek( p_storage->p_filer, p_cmd->send.i_offset, SEEK_SET ) &&
1129 fread( &block, sizeof(block), 1, p_storage->p_filer ) == 1 )
1131 block_t *p_block = block_Alloc( block.i_buffer );
1134 p_block->i_dts = block.i_dts;
1135 p_block->i_pts = block.i_pts;
1136 p_block->i_flags = block.i_flags;
1137 p_block->i_length = block.i_length;
1138 p_block->i_rate = block.i_rate;
1139 p_block->i_samples = block.i_samples;
1140 p_block->i_buffer = fread( p_block->p_buffer, 1, block.i_buffer, p_storage->p_filer );
1142 p_cmd->send.p_block = p_block;
1146 fprintf( stderr, "----------------- 2: %m\n" );
1147 p_cmd->send.p_block = block_Alloc( 1 );
1152 /*****************************************************************************
1154 *****************************************************************************/
1155 static void CmdClean( ts_cmd_t *p_cmd )
1157 switch( p_cmd->i_type )
1160 CmdCleanAdd( p_cmd );
1163 CmdCleanSend( p_cmd );
1166 CmdCleanControl( p_cmd );
1176 static int CmdInitAdd( ts_cmd_t *p_cmd, es_out_id_t *p_es, const es_format_t *p_fmt, bool b_copy )
1178 p_cmd->i_type = C_ADD;
1179 p_cmd->i_date = mdate();
1180 p_cmd->add.p_es = p_es;
1183 p_cmd->add.p_fmt = malloc( sizeof(*p_fmt) );
1184 if( !p_cmd->add.p_fmt )
1185 return VLC_EGENERIC;
1186 es_format_Copy( p_cmd->add.p_fmt, p_fmt );
1190 p_cmd->add.p_fmt = (es_format_t*)p_fmt;
1194 static void CmdExecuteAdd( es_out_t *p_out, ts_cmd_t *p_cmd )
1196 p_cmd->add.p_es->p_es = es_out_Add( p_out, p_cmd->add.p_fmt );
1198 static void CmdCleanAdd( ts_cmd_t *p_cmd )
1200 es_format_Clean( p_cmd->add.p_fmt );
1201 free( p_cmd->add.p_fmt );
1204 static void CmdInitSend( ts_cmd_t *p_cmd, es_out_id_t *p_es, block_t *p_block )
1206 p_cmd->i_type = C_SEND;
1207 p_cmd->i_date = mdate();
1208 p_cmd->send.p_es = p_es;
1209 p_cmd->send.p_block = p_block;
1211 static int CmdExecuteSend( es_out_t *p_out, ts_cmd_t *p_cmd )
1213 block_t *p_block = p_cmd->send.p_block;
1215 p_cmd->send.p_block = NULL;
1219 if( p_cmd->send.p_es->p_es )
1220 return es_out_Send( p_out, p_cmd->send.p_es->p_es, p_block );
1221 block_Release( p_block );
1223 return VLC_EGENERIC;
1225 static void CmdCleanSend( ts_cmd_t *p_cmd )
1227 if( p_cmd->send.p_block )
1228 block_Release( p_cmd->send.p_block );
1231 static int CmdInitDel( ts_cmd_t *p_cmd, es_out_id_t *p_es )
1233 p_cmd->i_type = C_DEL;
1234 p_cmd->i_date = mdate();
1235 p_cmd->del.p_es = p_es;
1238 static void CmdExecuteDel( es_out_t *p_out, ts_cmd_t *p_cmd )
1240 if( p_cmd->del.p_es->p_es )
1241 es_out_Del( p_out, p_cmd->del.p_es->p_es );
1242 free( p_cmd->del.p_es );
1245 static int CmdInitControl( ts_cmd_t *p_cmd, int i_query, va_list args, bool b_copy )
1247 p_cmd->i_type = C_CONTROL;
1248 p_cmd->i_date = mdate();
1249 p_cmd->control.i_query = i_query;
1253 /* Pass-through control */
1254 case ES_OUT_SET_ACTIVE: /* arg1= bool */
1255 p_cmd->control.b_bool = (bool)va_arg( args, int );
1258 case ES_OUT_SET_MODE: /* arg1= int */
1259 case ES_OUT_SET_GROUP: /* arg1= int */
1260 case ES_OUT_DEL_GROUP: /* arg1=int i_group */
1261 p_cmd->control.i_int = (int)va_arg( args, int );
1264 case ES_OUT_SET_PCR: /* arg1=int64_t i_pcr(microsecond!) (using default group 0)*/
1265 case ES_OUT_SET_NEXT_DISPLAY_TIME: /* arg1=int64_t i_pts(microsecond) */
1266 p_cmd->control.i_i64 = (int64_t)va_arg( args, int64_t );
1269 case ES_OUT_SET_GROUP_PCR: /* arg1= int i_group, arg2=int64_t i_pcr(microsecond!)*/
1270 p_cmd->control.int_i64.i_int = (int)va_arg( args, int );
1271 p_cmd->control.int_i64.i_i64 = (int64_t)va_arg( args, int64_t );
1274 case ES_OUT_RESET_PCR: /* no arg */
1277 case ES_OUT_SET_GROUP_META: /* arg1=int i_group arg2=vlc_meta_t* */
1279 p_cmd->control.int_meta.i_int = (int)va_arg( args, int );
1280 vlc_meta_t *p_meta = (vlc_meta_t*)va_arg( args, vlc_meta_t * );
1284 p_cmd->control.int_meta.p_meta = vlc_meta_New();
1285 if( !p_cmd->control.int_meta.p_meta )
1286 return VLC_EGENERIC;
1287 vlc_meta_Merge( p_cmd->control.int_meta.p_meta, p_meta );
1291 p_cmd->control.int_meta.p_meta = p_meta;
1296 case ES_OUT_SET_GROUP_EPG: /* arg1=int i_group arg2=vlc_epg_t* */
1298 p_cmd->control.int_epg.i_int = (int)va_arg( args, int );
1299 vlc_epg_t *p_epg = (vlc_epg_t*)va_arg( args, vlc_epg_t * );
1303 p_cmd->control.int_epg.p_epg = vlc_epg_New( p_epg->psz_name );
1304 if( !p_cmd->control.int_epg.p_epg )
1305 return VLC_EGENERIC;
1306 for( int i = 0; i < p_epg->i_event; i++ )
1308 vlc_epg_event_t *p_evt = p_epg->pp_event[i];
1310 vlc_epg_AddEvent( p_cmd->control.int_epg.p_epg,
1311 p_evt->i_start, p_evt->i_duration,
1313 p_evt->psz_short_description, p_evt->psz_description );
1315 vlc_epg_SetCurrent( p_cmd->control.int_epg.p_epg,
1316 p_epg->p_current ? p_epg->p_current->i_start : -1 );
1320 p_cmd->control.int_epg.p_epg = p_epg;
1325 /* Modified control */
1326 case ES_OUT_SET_ES: /* arg1= es_out_id_t* */
1327 case ES_OUT_RESTART_ES: /* arg1= es_out_id_t* */
1328 case ES_OUT_SET_ES_DEFAULT: /* arg1= es_out_id_t* */
1329 p_cmd->control.p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
1332 case ES_OUT_SET_ES_STATE:/* arg1= es_out_id_t* arg2=bool */
1333 p_cmd->control.es_bool.p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
1334 p_cmd->control.es_bool.b_bool = (bool)va_arg( args, int );
1337 case ES_OUT_SET_ES_FMT: /* arg1= es_out_id_t* arg2=es_format_t* */
1339 p_cmd->control.es_fmt.p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
1340 es_format_t *p_fmt = (es_format_t*)va_arg( args, es_format_t * );
1344 p_cmd->control.es_fmt.p_fmt = malloc( sizeof(*p_fmt) );
1345 if( !p_cmd->control.es_fmt.p_fmt )
1346 return VLC_EGENERIC;
1347 es_format_Copy( p_cmd->control.es_fmt.p_fmt, p_fmt );
1351 p_cmd->control.es_fmt.p_fmt = p_fmt;
1358 return VLC_EGENERIC;
1363 static int CmdExecuteControl( es_out_t *p_out, ts_cmd_t *p_cmd )
1365 const int i_query = p_cmd->control.i_query;
1369 /* Pass-through control */
1370 case ES_OUT_SET_ACTIVE: /* arg1= bool */
1371 return es_out_Control( p_out, i_query, p_cmd->control.b_bool );
1373 case ES_OUT_SET_MODE: /* arg1= int */
1374 case ES_OUT_SET_GROUP: /* arg1= int */
1375 case ES_OUT_DEL_GROUP: /* arg1=int i_group */
1376 return es_out_Control( p_out, i_query, p_cmd->control.i_int );
1378 case ES_OUT_SET_PCR: /* arg1=int64_t i_pcr(microsecond!) (using default group 0)*/
1379 case ES_OUT_SET_NEXT_DISPLAY_TIME: /* arg1=int64_t i_pts(microsecond) */
1380 return es_out_Control( p_out, i_query, p_cmd->control.i_i64 );
1382 case ES_OUT_SET_GROUP_PCR: /* arg1= int i_group, arg2=int64_t i_pcr(microsecond!)*/
1383 return es_out_Control( p_out, i_query, p_cmd->control.int_i64.i_int, p_cmd->control.int_i64.i_i64 );
1385 case ES_OUT_RESET_PCR: /* no arg */
1386 return es_out_Control( p_out, i_query );
1388 case ES_OUT_SET_GROUP_META: /* arg1=int i_group arg2=vlc_meta_t* */
1389 return es_out_Control( p_out, i_query, p_cmd->control.int_meta.i_int, p_cmd->control.int_meta.p_meta );
1391 case ES_OUT_SET_GROUP_EPG: /* arg1=int i_group arg2=vlc_epg_t* */
1392 return es_out_Control( p_out, i_query, p_cmd->control.int_epg.i_int, p_cmd->control.int_epg.p_epg );
1394 /* Modified control */
1395 case ES_OUT_SET_ES: /* arg1= es_out_id_t* */
1396 case ES_OUT_RESTART_ES: /* arg1= es_out_id_t* */
1397 case ES_OUT_SET_ES_DEFAULT: /* arg1= es_out_id_t* */
1398 return es_out_Control( p_out, i_query, p_cmd->control.p_es->p_es );
1400 case ES_OUT_SET_ES_STATE:/* arg1= es_out_id_t* arg2=bool */
1401 return es_out_Control( p_out, i_query, p_cmd->control.es_bool.p_es->p_es, p_cmd->control.es_bool.b_bool );
1403 case ES_OUT_SET_ES_FMT: /* arg1= es_out_id_t* arg2=es_format_t* */
1404 return es_out_Control( p_out, i_query, p_cmd->control.es_fmt.p_es->p_es, p_cmd->control.es_fmt.p_fmt );
1408 return VLC_EGENERIC;
1411 static void CmdCleanControl( ts_cmd_t *p_cmd )
1413 if( p_cmd->control.i_query == ES_OUT_SET_GROUP_META &&
1414 p_cmd->control.int_meta.p_meta )
1416 vlc_meta_Delete( p_cmd->control.int_meta.p_meta );
1418 else if( p_cmd->control.i_query == ES_OUT_SET_GROUP_EPG &&
1419 p_cmd->control.int_epg.p_epg )
1421 vlc_epg_Delete( p_cmd->control.int_epg.p_epg );
1423 else if( p_cmd->control.i_query == ES_OUT_SET_ES_FMT &&
1424 p_cmd->control.es_fmt.p_fmt )
1426 es_format_Clean( p_cmd->control.es_fmt.p_fmt );
1427 free( p_cmd->control.es_fmt.p_fmt );
1432 /*****************************************************************************
1434 *****************************************************************************/
1435 static char *GetTmpPath( char *psz_path )
1437 if( psz_path && *psz_path )
1439 /* Make sure that the path exists and is a directory */
1441 const int i_ret = utf8_stat( psz_path, &s );
1443 if( i_ret < 0 && !utf8_mkdir( psz_path, 0600 ) )
1445 else if( i_ret == 0 && ( s.st_mode & S_IFDIR ) )
1450 /* Create a suitable path */
1451 #if defined (WIN32) && !defined (UNDER_CE)
1452 const DWORD dwCount = GetTempPathW( 0, NULL );
1453 wchar_t *psw_path = calloc( dwCount + 1, sizeof(wchar_t) );
1456 if( GetTempPathW( dwCount + 1, psw_path ) <= 0 )
1460 psw_path = _wgetcwd( NULL, 0 );
1467 psz_path = FromWide( psw_path );
1468 while( psz_path && *psz_path && psz_path[strlen( psz_path ) - 1] == '\\' )
1469 psz_path[strlen( psz_path ) - 1] = '\0';
1474 if( !psz_path || *psz_path == '\0' )
1477 return strdup( "C:" );
1480 psz_path = strdup( "/tmp" );
1486 static FILE *GetTmpFile( char **ppsz_file, const char *psz_path )
1494 if( asprintf( &psz_name, "%s/vlc-timeshift.XXXXXX", psz_path ) < 0 )
1498 fd = mkstemp( psz_name );
1499 *ppsz_file = psz_name;
1505 f = fdopen( fd, "rw+" );