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 *****************************************************************************/
129 ts_cmd_control_t control;
133 typedef struct ts_storage_t ts_storage_t;
136 ts_storage_t *p_next;
139 char *psz_file; /* Filename */
140 int64_t i_file_max; /* Max size in bytes */
141 int64_t i_file_size;/* Current size in bytes */
142 FILE *p_filew; /* FILE handle for data writing */
143 FILE *p_filer; /* FILE handle for data reading */
157 input_thread_t *p_input;
159 int64_t i_tmp_size_max;
160 const char *psz_tmp_path;
162 /* Lock for all following fields */
168 mtime_t i_pause_date;
174 mtime_t i_rate_delay;
177 mtime_t i_buffering_delay;
180 ts_storage_t *p_storage_r;
181 ts_storage_t *p_storage_w;
194 input_thread_t *p_input;
198 int64_t i_tmp_size_max; /* Maximal temporary file size in byte */
199 char *psz_tmp_path; /* Path for temporary files */
201 /* Lock for all following fields */
206 ts_thread_t *p_thread;
210 bool b_input_paused_source;
212 int i_input_rate_source;
219 static es_out_id_t *Add ( es_out_t *, const es_format_t * );
220 static int Send ( es_out_t *, es_out_id_t *, block_t * );
221 static void Del ( es_out_t *, es_out_id_t * );
222 static int Control( es_out_t *, int i_query, va_list );
223 static void Destroy( es_out_t * );
225 static int TsStart( es_out_t * );
226 static void TsAutoStop( es_out_t * );
228 static void TsStop( ts_thread_t * );
229 static void TsPushCmd( ts_thread_t *, ts_cmd_t * );
230 static int TsPopCmdLocked( ts_thread_t *, ts_cmd_t * );
231 static bool TsHasCmd( ts_thread_t * );
232 static bool TsIsUnused( ts_thread_t * );
233 static int TsChangePause( ts_thread_t *, bool b_source_paused, bool b_paused, mtime_t i_date );
234 static int TsChangeRate( ts_thread_t *, int i_src_rate, int i_rate );
236 static void *TsRun( vlc_object_t * );
238 static ts_storage_t *TsStorageNew( const char *psz_path, int64_t i_tmp_size_max );
239 static void TsStorageDelete( ts_storage_t * );
240 static void TsStoragePack( ts_storage_t *p_storage );
241 static bool TsStorageIsFull( ts_storage_t *, const ts_cmd_t *p_cmd );
242 static bool TsStorageIsEmpty( ts_storage_t * );
243 static void TsStoragePushCmd( ts_storage_t *, const ts_cmd_t *p_cmd, bool b_flush );
244 static void TsStoragePopCmd( ts_storage_t *p_storage, ts_cmd_t *p_cmd );
246 static void CmdClean( ts_cmd_t * );
247 static void cmd_cleanup_routine( void *p ) { CmdClean( p ); }
249 static int CmdInitAdd ( ts_cmd_t *, es_out_id_t *, const es_format_t *, bool b_copy );
250 static void CmdInitSend ( ts_cmd_t *, es_out_id_t *, block_t * );
251 static int CmdInitDel ( ts_cmd_t *, es_out_id_t * );
252 static int CmdInitControl( ts_cmd_t *, int i_query, va_list, bool b_copy );
255 static void CmdCleanAdd ( ts_cmd_t * );
256 static void CmdCleanSend ( ts_cmd_t * );
257 static void CmdCleanControl( ts_cmd_t *p_cmd );
259 /* XXX these functions will take the destination es_out_t */
260 static void CmdExecuteAdd ( es_out_t *, ts_cmd_t * );
261 static int CmdExecuteSend ( es_out_t *, ts_cmd_t * );
262 static void CmdExecuteDel ( es_out_t *, ts_cmd_t * );
263 static int CmdExecuteControl( es_out_t *, ts_cmd_t * );
266 static char *GetTmpPath( char *psz_path );
267 static FILE *GetTmpFile( char **ppsz_file, const char *psz_path );
269 /*****************************************************************************
270 * input_EsOutTimeshiftNew:
271 *****************************************************************************/
272 es_out_t *input_EsOutTimeshiftNew( input_thread_t *p_input, es_out_t *p_next_out, int i_rate )
274 es_out_t *p_out = malloc( sizeof(*p_out) );
278 es_out_sys_t *p_sys = malloc( sizeof(*p_sys) );
287 p_out->pf_send = Send;
289 p_out->pf_control = Control;
290 p_out->pf_destroy = Destroy;
291 p_out->p_sys = p_sys;
292 p_out->b_sout = p_input->p->p_sout != NULL;
295 p_sys->b_input_paused = false;
296 p_sys->b_input_paused_source = false;
297 p_sys->p_input = p_input;
298 p_sys->i_input_rate = i_rate;
299 p_sys->i_input_rate_source = i_rate;
301 p_sys->p_out = p_next_out;
302 vlc_mutex_init_recursive( &p_sys->lock );
304 p_sys->b_delayed = false;
305 p_sys->p_thread = NULL;
307 TAB_INIT( p_sys->i_es, p_sys->pp_es );
310 const int i_tmp_size_max = var_CreateGetInteger( p_input, "input-timeshift-granularity" );
311 if( i_tmp_size_max < 0 )
312 p_sys->i_tmp_size_max = 50*1024*1024;
314 p_sys->i_tmp_size_max = __MAX( i_tmp_size_max, 1*1024*1024 );
315 msg_Dbg( p_input, "using timeshift granularity of %d bytes",
316 (int)p_sys->i_tmp_size_max );
318 char *psz_tmp_path = var_CreateGetNonEmptyString( p_input, "input-timeshift-path" );
319 p_sys->psz_tmp_path = GetTmpPath( psz_tmp_path );
320 msg_Dbg( p_input, "using timeshift path '%s'", p_sys->psz_tmp_path );
325 /*****************************************************************************
327 *****************************************************************************/
328 static void Destroy( es_out_t *p_out )
330 es_out_sys_t *p_sys = p_out->p_sys;
332 if( p_sys->b_delayed )
334 TsStop( p_sys->p_thread );
335 p_sys->b_delayed = false;
338 while( p_sys->i_es > 0 )
339 Del( p_out, p_sys->pp_es[0] );
340 TAB_CLEAN( p_sys->i_es, p_sys->pp_es );
342 free( p_sys->psz_tmp_path );
343 vlc_mutex_destroy( &p_sys->lock );
348 static es_out_id_t *Add( es_out_t *p_out, const es_format_t *p_fmt )
350 es_out_sys_t *p_sys = p_out->p_sys;
353 es_out_id_t *p_es = malloc( sizeof( *p_es ) );
357 vlc_mutex_lock( &p_sys->lock );
361 if( CmdInitAdd( &cmd, p_es, p_fmt, p_sys->b_delayed ) )
363 vlc_mutex_unlock( &p_sys->lock );
368 TAB_APPEND( p_sys->i_es, p_sys->pp_es, p_es );
370 if( p_sys->b_delayed )
371 TsPushCmd( p_sys->p_thread, &cmd );
373 CmdExecuteAdd( p_sys->p_out, &cmd );
375 vlc_mutex_unlock( &p_sys->lock );
379 static int Send( es_out_t *p_out, es_out_id_t *p_es, block_t *p_block )
381 es_out_sys_t *p_sys = p_out->p_sys;
383 int i_ret = VLC_SUCCESS;
385 vlc_mutex_lock( &p_sys->lock );
389 CmdInitSend( &cmd, p_es, p_block );
390 if( p_sys->b_delayed )
391 TsPushCmd( p_sys->p_thread, &cmd );
393 i_ret = CmdExecuteSend( p_sys->p_out, &cmd) ;
395 vlc_mutex_unlock( &p_sys->lock );
399 static void Del( es_out_t *p_out, es_out_id_t *p_es )
401 es_out_sys_t *p_sys = p_out->p_sys;
404 vlc_mutex_lock( &p_sys->lock );
408 CmdInitDel( &cmd, p_es );
409 if( p_sys->b_delayed )
410 TsPushCmd( p_sys->p_thread, &cmd );
412 CmdExecuteDel( p_sys->p_out, &cmd );
414 TAB_REMOVE( p_sys->i_es, p_sys->pp_es, p_es );
416 vlc_mutex_unlock( &p_sys->lock );
419 static int ControlLockedGetEmpty( es_out_t *p_out, bool *pb_empty )
421 es_out_sys_t *p_sys = p_out->p_sys;
423 if( p_sys->b_delayed && TsHasCmd( p_sys->p_thread ) )
426 *pb_empty = es_out_GetEmpty( p_sys->p_out );
430 static int ControlLockedGetWakeup( es_out_t *p_out, mtime_t *pi_wakeup )
432 es_out_sys_t *p_sys = p_out->p_sys;
434 if( p_sys->b_delayed )
436 assert( !p_sys->p_input->b_can_pace_control );
441 *pi_wakeup = es_out_GetWakeup( p_sys->p_out );
446 static int ControlLockedGetBuffering( es_out_t *p_out, bool *pb_buffering )
448 es_out_sys_t *p_sys = p_out->p_sys;
450 if( p_sys->b_delayed )
451 *pb_buffering = true;
453 *pb_buffering = es_out_GetBuffering( p_sys->p_out );
457 static int ControlLockedSetPauseState( es_out_t *p_out, bool b_source_paused, bool b_paused, mtime_t i_date )
459 es_out_sys_t *p_sys = p_out->p_sys;
462 if( !p_sys->b_delayed && !b_source_paused == !b_paused )
464 i_ret = es_out_SetPauseState( p_sys->p_out, b_source_paused, b_paused, i_date );
468 i_ret = VLC_EGENERIC;
469 if( !p_sys->p_input->b_can_pace_control )
471 if( !p_sys->b_delayed )
473 if( p_sys->b_delayed )
474 i_ret = TsChangePause( p_sys->p_thread, b_source_paused, b_paused, i_date );
478 /* XXX we may do it BUT it would be better to finish the clock clean up+improvments
479 * and so be able to advertize correctly pace control property in access
481 msg_Err( p_sys->p_input, "EsOutTimeshift does not work with streams that have space control" );
487 p_sys->b_input_paused_source = b_source_paused;
488 p_sys->b_input_paused = b_paused;
492 static int ControlLockedSetRate( es_out_t *p_out, int i_src_rate, int i_rate )
494 es_out_sys_t *p_sys = p_out->p_sys;
497 if( !p_sys->b_delayed && i_src_rate == i_rate )
499 i_ret = es_out_SetRate( p_sys->p_out, i_src_rate, i_rate );
503 i_ret = VLC_EGENERIC;
504 if( !p_sys->p_input->b_can_pace_control )
506 if( !p_sys->b_delayed )
508 if( p_sys->b_delayed )
509 i_ret = TsChangeRate( p_sys->p_thread, i_src_rate, i_rate );
513 /* XXX we may do it BUT it would be better to finish the clock clean up+improvments
514 * and so be able to advertize correctly pace control property in access
516 msg_Err( p_sys->p_input, "EsOutTimeshift does not work with streams that have space control" );
523 p_sys->i_input_rate_source = i_src_rate;
524 p_sys->i_input_rate = i_rate;
528 static int ControlLockedSetTime( es_out_t *p_out, mtime_t i_date )
530 es_out_sys_t *p_sys = p_out->p_sys;
532 if( !p_sys->b_delayed )
533 return es_out_SetTime( p_sys->p_out, i_date );
536 msg_Err( p_sys->p_input, "EsOutTimeshift does not yet support time change" );
539 static int ControlLockedSetFrameNext( es_out_t *p_out )
541 es_out_sys_t *p_sys = p_out->p_sys;
543 return es_out_SetFrameNext( p_sys->p_out );
546 static int ControlLocked( es_out_t *p_out, int i_query, va_list args )
548 es_out_sys_t *p_sys = p_out->p_sys;
552 /* Invalid query for this es_out level */
553 case ES_OUT_SET_ES_BY_ID:
554 case ES_OUT_RESTART_ES_BY_ID:
555 case ES_OUT_SET_ES_DEFAULT_BY_ID:
556 case ES_OUT_SET_DELAY:
557 case ES_OUT_SET_RECORD_STATE:
561 /* TODO ? or to remove ? */
565 /* Pass-through control */
566 case ES_OUT_SET_ACTIVE:
567 case ES_OUT_SET_MODE:
568 case ES_OUT_SET_GROUP:
570 case ES_OUT_SET_GROUP_PCR:
571 case ES_OUT_RESET_PCR:
572 case ES_OUT_SET_NEXT_DISPLAY_TIME:
573 case ES_OUT_SET_GROUP_META:
574 case ES_OUT_SET_GROUP_EPG:
575 case ES_OUT_DEL_GROUP:
577 case ES_OUT_RESTART_ES:
578 case ES_OUT_SET_ES_DEFAULT:
579 case ES_OUT_SET_ES_STATE:
580 case ES_OUT_SET_ES_FMT:
583 if( CmdInitControl( &cmd, i_query, args, p_sys->b_delayed ) )
585 if( p_sys->b_delayed )
587 TsPushCmd( p_sys->p_thread, &cmd );
590 return CmdExecuteControl( p_sys->p_out, &cmd );
593 /* Special control when delayed */
594 case ES_OUT_GET_ES_STATE:
596 es_out_id_t *p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
597 bool *pb_enabled = (bool*)va_arg( args, bool* );
599 if( p_sys->b_delayed )
604 return es_out_Control( p_sys->p_out, ES_OUT_GET_ES_STATE, p_es, pb_enabled );
607 /* Special internal input control */
608 case ES_OUT_GET_EMPTY:
610 bool *pb_empty = (bool*)va_arg( args, bool* );
611 return ControlLockedGetEmpty( p_out, pb_empty );
613 case ES_OUT_GET_WAKE_UP: /* TODO ? */
615 mtime_t *pi_wakeup = (mtime_t*)va_arg( args, mtime_t* );
616 return ControlLockedGetWakeup( p_out, pi_wakeup );
618 case ES_OUT_GET_BUFFERING:
620 bool *pb_buffering = (bool *)va_arg( args, bool* );
621 return ControlLockedGetBuffering( p_out, pb_buffering );
623 case ES_OUT_SET_PAUSE_STATE:
625 const bool b_source_paused = (bool)va_arg( args, int );
626 const bool b_paused = (bool)va_arg( args, int );
627 const mtime_t i_date = (mtime_t) va_arg( args, mtime_t );
629 return ControlLockedSetPauseState( p_out, b_source_paused, b_paused, i_date );
631 case ES_OUT_SET_RATE:
633 const int i_src_rate = (int)va_arg( args, int );
634 const int i_rate = (int)va_arg( args, int );
636 return ControlLockedSetRate( p_out, i_src_rate, i_rate );
638 case ES_OUT_SET_TIME:
640 const mtime_t i_date = (mtime_t)va_arg( args, mtime_t );
642 return ControlLockedSetTime( p_out, i_date );
644 case ES_OUT_SET_FRAME_NEXT:
646 return ControlLockedSetFrameNext( p_out );
650 msg_Err( p_sys->p_input, "Unknown es_out_Control query !" );
655 static int Control( es_out_t *p_out, int i_query, va_list args )
657 es_out_sys_t *p_sys = p_out->p_sys;
660 vlc_mutex_lock( &p_sys->lock );
664 i_ret = ControlLocked( p_out, i_query, args );
666 vlc_mutex_unlock( &p_sys->lock );
671 /*****************************************************************************
673 *****************************************************************************/
674 static void TsDestructor( vlc_object_t *p_this )
676 ts_thread_t *p_ts = (ts_thread_t*)p_this;
678 vlc_cond_destroy( &p_ts->wait );
679 vlc_mutex_destroy( &p_ts->lock );
681 static int TsStart( es_out_t *p_out )
683 es_out_sys_t *p_sys = p_out->p_sys;
686 assert( !p_sys->b_delayed );
688 p_sys->p_thread = p_ts = vlc_custom_create( p_sys->p_input, sizeof(ts_thread_t),
689 VLC_OBJECT_GENERIC, "es out timeshift" );
693 p_ts->i_tmp_size_max = p_sys->i_tmp_size_max;
694 p_ts->psz_tmp_path = p_sys->psz_tmp_path;
695 p_ts->p_input = p_sys->p_input;
696 p_ts->p_out = p_sys->p_out;
697 vlc_mutex_init( &p_ts->lock );
698 vlc_cond_init( &p_ts->wait );
699 p_ts->b_paused = p_sys->b_input_paused && !p_sys->b_input_paused_source;
700 p_ts->i_pause_date = p_ts->b_paused ? mdate() : -1;
701 p_ts->i_rate_source = p_sys->i_input_rate_source;
702 p_ts->i_rate = p_sys->i_input_rate;
703 p_ts->i_rate_date = -1;
704 p_ts->i_rate_delay = 0;
705 p_ts->i_buffering_delay = 0;
706 p_ts->i_cmd_delay = 0;
707 p_ts->p_storage_r = NULL;
708 p_ts->p_storage_w = NULL;
710 vlc_object_set_destructor( p_ts, TsDestructor );
712 p_sys->b_delayed = true;
713 if( vlc_thread_create( p_ts, "es out timeshift",
714 TsRun, VLC_THREAD_PRIORITY_INPUT, false ) )
716 msg_Err( p_sys->p_input, "cannot create input thread" );
718 vlc_object_release( p_ts );
720 p_sys->b_delayed = false;
726 static void TsAutoStop( es_out_t *p_out )
728 es_out_sys_t *p_sys = p_out->p_sys;
730 if( !p_sys->b_delayed || !TsIsUnused( p_sys->p_thread ) )
733 msg_Warn( p_sys->p_input, "es out timeshift: auto stop" );
734 TsStop( p_sys->p_thread );
736 p_sys->b_delayed = false;
738 static void TsStop( ts_thread_t *p_ts )
740 vlc_object_kill( p_ts );
741 vlc_thread_join( p_ts );
743 vlc_mutex_lock( &p_ts->lock );
748 if( TsPopCmdLocked( p_ts, &cmd ) )
753 assert( !p_ts->p_storage_r || !p_ts->p_storage_r->p_next );
754 if( p_ts->p_storage_r )
755 TsStorageDelete( p_ts->p_storage_r );
756 vlc_mutex_unlock( &p_ts->lock );
758 vlc_object_release( p_ts );
760 static void TsPushCmd( ts_thread_t *p_ts, ts_cmd_t *p_cmd )
762 vlc_mutex_lock( &p_ts->lock );
764 if( !p_ts->p_storage_w || TsStorageIsFull( p_ts->p_storage_w, p_cmd ) )
766 ts_storage_t *p_storage = TsStorageNew( p_ts->psz_tmp_path, p_ts->i_tmp_size_max );
771 vlc_mutex_unlock( &p_ts->lock );
772 /* TODO warn the user (but only once) */
776 if( !p_ts->p_storage_w )
778 p_ts->p_storage_r = p_ts->p_storage_w = p_storage;
782 TsStoragePack( p_ts->p_storage_w );
783 p_ts->p_storage_w->p_next = p_storage;
784 p_ts->p_storage_w = p_storage;
788 /* TODO return error and warn the user (but only once) */
789 TsStoragePushCmd( p_ts->p_storage_w, p_cmd, p_ts->p_storage_r == p_ts->p_storage_w );
791 vlc_cond_signal( &p_ts->wait );
793 vlc_mutex_unlock( &p_ts->lock );
795 static int TsPopCmdLocked( ts_thread_t *p_ts, ts_cmd_t *p_cmd )
797 vlc_assert_locked( &p_ts->lock );
799 if( TsStorageIsEmpty( p_ts->p_storage_r ) )
802 TsStoragePopCmd( p_ts->p_storage_r, p_cmd );
804 while( p_ts->p_storage_r && TsStorageIsEmpty( p_ts->p_storage_r ) )
806 ts_storage_t *p_next = p_ts->p_storage_r->p_next;
810 TsStorageDelete( p_ts->p_storage_r );
811 p_ts->p_storage_r = p_next;
816 static bool TsHasCmd( ts_thread_t *p_ts )
820 vlc_mutex_lock( &p_ts->lock );
821 b_cmd = TsStorageIsEmpty( p_ts->p_storage_r );
822 vlc_mutex_unlock( &p_ts->lock );
826 static bool TsIsUnused( ts_thread_t *p_ts )
830 vlc_mutex_lock( &p_ts->lock );
831 b_unused = !p_ts->b_paused &&
832 p_ts->i_rate == p_ts->i_rate_source &&
833 TsStorageIsEmpty( p_ts->p_storage_r );
834 vlc_mutex_unlock( &p_ts->lock );
838 static int TsChangePause( ts_thread_t *p_ts, bool b_source_paused, bool b_paused, mtime_t i_date )
840 vlc_mutex_lock( &p_ts->lock );
845 assert( !b_source_paused );
846 i_ret = es_out_SetPauseState( p_ts->p_out, true, true, i_date );
850 i_ret = es_out_SetPauseState( p_ts->p_out, false, false, i_date );
857 assert( p_ts->i_pause_date > 0 );
859 p_ts->i_cmd_delay += i_date - p_ts->i_pause_date;
862 p_ts->b_paused = b_paused;
863 p_ts->i_pause_date = i_date;
865 vlc_cond_signal( &p_ts->wait );
867 vlc_mutex_unlock( &p_ts->lock );
870 static int TsChangeRate( ts_thread_t *p_ts, int i_src_rate, int i_rate )
874 vlc_mutex_lock( &p_ts->lock );
875 p_ts->i_cmd_delay += p_ts->i_rate_delay;
877 p_ts->i_rate_date = -1;
878 p_ts->i_rate_delay = 0;
879 p_ts->i_rate = i_rate;
880 p_ts->i_rate_source = i_src_rate;
882 i_ret = es_out_SetRate( p_ts->p_out, i_rate, i_rate );
883 vlc_mutex_unlock( &p_ts->lock );
888 static void *TsRun( vlc_object_t *p_thread )
890 ts_thread_t *p_ts = (ts_thread_t*)p_thread;
891 mtime_t i_buffering_date = -1;
899 /* Pop a command to execute */
900 vlc_mutex_lock( &p_ts->lock );
901 mutex_cleanup_push( &p_ts->lock );
905 const int canc = vlc_savecancel();
906 b_buffering = es_out_GetBuffering( p_ts->p_out );
908 if( ( !p_ts->b_paused || b_buffering ) && !TsPopCmdLocked( p_ts, &cmd ) )
910 vlc_restorecancel( canc );
913 vlc_restorecancel( canc );
915 vlc_cond_wait( &p_ts->wait, &p_ts->lock );
918 if( b_buffering && i_buffering_date < 0 )
920 i_buffering_date = cmd.i_date;
922 else if( i_buffering_date > 0 )
924 p_ts->i_buffering_delay += i_buffering_date - cmd.i_date; /* It is < 0 */
926 i_buffering_date = cmd.i_date;
928 i_buffering_date = -1;
931 if( p_ts->i_rate_date < 0 )
932 p_ts->i_rate_date = cmd.i_date;
934 p_ts->i_rate_delay = 0;
935 if( p_ts->i_rate_source != p_ts->i_rate )
937 const mtime_t i_duration = cmd.i_date - p_ts->i_rate_date;
938 p_ts->i_rate_delay = i_duration * p_ts->i_rate / p_ts->i_rate_source - i_duration;
940 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 )
942 const int canc = vlc_savecancel();
944 /* Auto reset to rate 1.0 */
945 msg_Warn( p_ts->p_input, "es out timeshift: auto reset rate to %d", p_ts->i_rate_source );
947 p_ts->i_cmd_delay = 0;
948 p_ts->i_buffering_delay = 0;
950 p_ts->i_rate_delay = 0;
951 p_ts->i_rate_date = -1;
952 p_ts->i_rate = p_ts->i_rate_source;
954 if( !es_out_SetRate( p_ts->p_out, p_ts->i_rate_source, p_ts->i_rate ) )
956 vlc_value_t val = { .i_int = p_ts->i_rate };
958 * FIXME it is perfectly safe BUT it is ugly as it may hide a
959 * rate change requested by user */
960 input_ControlPush( p_ts->p_input, INPUT_CONTROL_SET_RATE, &val );
963 vlc_restorecancel( canc );
965 i_deadline = cmd.i_date + p_ts->i_cmd_delay + p_ts->i_rate_delay + p_ts->i_buffering_delay;
969 /* Regulate the speed of command processing to the same one than
971 vlc_cleanup_push( cmd_cleanup_routine, &cmd );
977 /* Execute the command */
978 const int canc = vlc_savecancel();
982 CmdExecuteAdd( p_ts->p_out, &cmd );
986 CmdExecuteSend( p_ts->p_out, &cmd );
987 CmdCleanSend( &cmd );
990 CmdExecuteControl( p_ts->p_out, &cmd );
991 CmdCleanControl( &cmd );
994 CmdExecuteDel( p_ts->p_out, &cmd );
1000 vlc_restorecancel( canc );
1006 /*****************************************************************************
1008 *****************************************************************************/
1009 static ts_storage_t *TsStorageNew( const char *psz_tmp_path, int64_t i_tmp_size_max )
1011 ts_storage_t *p_storage = calloc( 1, sizeof(ts_storage_t) );
1016 p_storage->p_next = NULL;
1019 p_storage->i_file_max = i_tmp_size_max;
1020 p_storage->i_file_size = 0;
1021 p_storage->p_filew = GetTmpFile( &p_storage->psz_file, psz_tmp_path );
1022 if( p_storage->psz_file )
1023 p_storage->p_filer = utf8_fopen( p_storage->psz_file, "rb" );
1026 p_storage->i_cmd_w = 0;
1027 p_storage->i_cmd_r = 0;
1028 p_storage->i_cmd_max = 30000;
1029 p_storage->p_cmd = malloc( p_storage->i_cmd_max * sizeof(*p_storage->p_cmd) );
1030 //fprintf( stderr, "\nSTORAGE name=%s size=%d kbytes\n", p_storage->psz_file, p_storage->i_cmd_max * sizeof(*p_storage->p_cmd) /1024 );
1032 if( !p_storage->p_cmd || !p_storage->p_filew || !p_storage->p_filer )
1034 TsStorageDelete( p_storage );
1039 static void TsStorageDelete( ts_storage_t *p_storage )
1041 while( p_storage->i_cmd_r < p_storage->i_cmd_w )
1045 TsStoragePopCmd( p_storage, &cmd );
1049 free( p_storage->p_cmd );
1051 if( p_storage->p_filer )
1052 fclose( p_storage->p_filer );
1053 if( p_storage->p_filew )
1054 fclose( p_storage->p_filew );
1056 if( p_storage->psz_file )
1058 utf8_unlink( p_storage->psz_file );
1059 free( p_storage->psz_file );
1064 static void TsStoragePack( ts_storage_t *p_storage )
1066 /* Try to release a bit of memory */
1067 if( p_storage->i_cmd_w >= p_storage->i_cmd_max )
1070 p_storage->i_cmd_max = __MAX( p_storage->i_cmd_w, 1 );
1072 ts_cmd_t *p_new = realloc( p_storage->p_cmd, p_storage->i_cmd_max * sizeof(*p_storage->p_cmd) );
1074 p_storage->p_cmd = p_new;
1076 static bool TsStorageIsFull( ts_storage_t *p_storage, const ts_cmd_t *p_cmd )
1078 if( p_cmd && p_cmd->i_type == C_SEND && p_storage->i_cmd_w > 0 )
1080 size_t i_size = sizeof(*p_cmd->send.p_block) + p_cmd->send.p_block->i_buffer;
1082 if( p_storage->i_file_size + i_size >= p_storage->i_file_max )
1085 return p_storage->i_cmd_w >= p_storage->i_cmd_max;
1087 static bool TsStorageIsEmpty( ts_storage_t *p_storage )
1089 return !p_storage || p_storage->i_cmd_r >= p_storage->i_cmd_w;
1091 static void TsStoragePushCmd( ts_storage_t *p_storage, const ts_cmd_t *p_cmd, bool b_flush )
1093 ts_cmd_t cmd = *p_cmd;
1095 assert( !TsStorageIsFull( p_storage, p_cmd ) );
1097 if( cmd.i_type == C_SEND )
1099 block_t *p_block = cmd.send.p_block;
1101 cmd.send.p_block = NULL;
1102 cmd.send.i_offset = ftell( p_storage->p_filew );
1104 if( fwrite( p_block, sizeof(*p_block), 1, p_storage->p_filew ) != 1 )
1106 block_Release( p_block );
1109 p_storage->i_file_size += sizeof(*p_block);
1110 if( p_block->i_buffer > 0 )
1112 if( fwrite( p_block->p_buffer, p_block->i_buffer, 1, p_storage->p_filew ) != 1 )
1114 block_Release( p_block );
1118 p_storage->i_file_size += p_block->i_buffer;
1119 block_Release( p_block );
1122 fflush( p_storage->p_filew );
1124 p_storage->p_cmd[p_storage->i_cmd_w++] = cmd;
1126 static void TsStoragePopCmd( ts_storage_t *p_storage, ts_cmd_t *p_cmd )
1128 assert( !TsStorageIsEmpty( p_storage ) );
1130 *p_cmd = p_storage->p_cmd[p_storage->i_cmd_r++];
1131 if( p_cmd->i_type == C_SEND )
1135 if( !fseek( p_storage->p_filer, p_cmd->send.i_offset, SEEK_SET ) &&
1136 fread( &block, sizeof(block), 1, p_storage->p_filer ) == 1 )
1138 block_t *p_block = block_Alloc( block.i_buffer );
1141 p_block->i_dts = block.i_dts;
1142 p_block->i_pts = block.i_pts;
1143 p_block->i_flags = block.i_flags;
1144 p_block->i_length = block.i_length;
1145 p_block->i_rate = block.i_rate;
1146 p_block->i_samples = block.i_samples;
1147 p_block->i_buffer = fread( p_block->p_buffer, 1, block.i_buffer, p_storage->p_filer );
1149 p_cmd->send.p_block = p_block;
1153 //fprintf( stderr, "TsStoragePopCmd: %m\n" );
1154 p_cmd->send.p_block = block_Alloc( 1 );
1159 /*****************************************************************************
1161 *****************************************************************************/
1162 static void CmdClean( ts_cmd_t *p_cmd )
1164 switch( p_cmd->i_type )
1167 CmdCleanAdd( p_cmd );
1170 CmdCleanSend( p_cmd );
1173 CmdCleanControl( p_cmd );
1183 static int CmdInitAdd( ts_cmd_t *p_cmd, es_out_id_t *p_es, const es_format_t *p_fmt, bool b_copy )
1185 p_cmd->i_type = C_ADD;
1186 p_cmd->i_date = mdate();
1187 p_cmd->add.p_es = p_es;
1190 p_cmd->add.p_fmt = malloc( sizeof(*p_fmt) );
1191 if( !p_cmd->add.p_fmt )
1192 return VLC_EGENERIC;
1193 es_format_Copy( p_cmd->add.p_fmt, p_fmt );
1197 p_cmd->add.p_fmt = (es_format_t*)p_fmt;
1201 static void CmdExecuteAdd( es_out_t *p_out, ts_cmd_t *p_cmd )
1203 p_cmd->add.p_es->p_es = es_out_Add( p_out, p_cmd->add.p_fmt );
1205 static void CmdCleanAdd( ts_cmd_t *p_cmd )
1207 es_format_Clean( p_cmd->add.p_fmt );
1208 free( p_cmd->add.p_fmt );
1211 static void CmdInitSend( ts_cmd_t *p_cmd, es_out_id_t *p_es, block_t *p_block )
1213 p_cmd->i_type = C_SEND;
1214 p_cmd->i_date = mdate();
1215 p_cmd->send.p_es = p_es;
1216 p_cmd->send.p_block = p_block;
1218 static int CmdExecuteSend( es_out_t *p_out, ts_cmd_t *p_cmd )
1220 block_t *p_block = p_cmd->send.p_block;
1222 p_cmd->send.p_block = NULL;
1226 if( p_cmd->send.p_es->p_es )
1227 return es_out_Send( p_out, p_cmd->send.p_es->p_es, p_block );
1228 block_Release( p_block );
1230 return VLC_EGENERIC;
1232 static void CmdCleanSend( ts_cmd_t *p_cmd )
1234 if( p_cmd->send.p_block )
1235 block_Release( p_cmd->send.p_block );
1238 static int CmdInitDel( ts_cmd_t *p_cmd, es_out_id_t *p_es )
1240 p_cmd->i_type = C_DEL;
1241 p_cmd->i_date = mdate();
1242 p_cmd->del.p_es = p_es;
1245 static void CmdExecuteDel( es_out_t *p_out, ts_cmd_t *p_cmd )
1247 if( p_cmd->del.p_es->p_es )
1248 es_out_Del( p_out, p_cmd->del.p_es->p_es );
1249 free( p_cmd->del.p_es );
1252 static int CmdInitControl( ts_cmd_t *p_cmd, int i_query, va_list args, bool b_copy )
1254 p_cmd->i_type = C_CONTROL;
1255 p_cmd->i_date = mdate();
1256 p_cmd->control.i_query = i_query;
1260 /* Pass-through control */
1261 case ES_OUT_SET_ACTIVE: /* arg1= bool */
1262 p_cmd->control.b_bool = (bool)va_arg( args, int );
1265 case ES_OUT_SET_MODE: /* arg1= int */
1266 case ES_OUT_SET_GROUP: /* arg1= int */
1267 case ES_OUT_DEL_GROUP: /* arg1=int i_group */
1268 p_cmd->control.i_int = (int)va_arg( args, int );
1271 case ES_OUT_SET_PCR: /* arg1=int64_t i_pcr(microsecond!) (using default group 0)*/
1272 case ES_OUT_SET_NEXT_DISPLAY_TIME: /* arg1=int64_t i_pts(microsecond) */
1273 p_cmd->control.i_i64 = (int64_t)va_arg( args, int64_t );
1276 case ES_OUT_SET_GROUP_PCR: /* arg1= int i_group, arg2=int64_t i_pcr(microsecond!)*/
1277 p_cmd->control.int_i64.i_int = (int)va_arg( args, int );
1278 p_cmd->control.int_i64.i_i64 = (int64_t)va_arg( args, int64_t );
1281 case ES_OUT_RESET_PCR: /* no arg */
1284 case ES_OUT_SET_GROUP_META: /* arg1=int i_group arg2=vlc_meta_t* */
1286 p_cmd->control.int_meta.i_int = (int)va_arg( args, int );
1287 vlc_meta_t *p_meta = (vlc_meta_t*)va_arg( args, vlc_meta_t * );
1291 p_cmd->control.int_meta.p_meta = vlc_meta_New();
1292 if( !p_cmd->control.int_meta.p_meta )
1293 return VLC_EGENERIC;
1294 vlc_meta_Merge( p_cmd->control.int_meta.p_meta, p_meta );
1298 p_cmd->control.int_meta.p_meta = p_meta;
1303 case ES_OUT_SET_GROUP_EPG: /* arg1=int i_group arg2=vlc_epg_t* */
1305 p_cmd->control.int_epg.i_int = (int)va_arg( args, int );
1306 vlc_epg_t *p_epg = (vlc_epg_t*)va_arg( args, vlc_epg_t * );
1310 p_cmd->control.int_epg.p_epg = vlc_epg_New( p_epg->psz_name );
1311 if( !p_cmd->control.int_epg.p_epg )
1312 return VLC_EGENERIC;
1313 for( int i = 0; i < p_epg->i_event; i++ )
1315 vlc_epg_event_t *p_evt = p_epg->pp_event[i];
1317 vlc_epg_AddEvent( p_cmd->control.int_epg.p_epg,
1318 p_evt->i_start, p_evt->i_duration,
1320 p_evt->psz_short_description, p_evt->psz_description );
1322 vlc_epg_SetCurrent( p_cmd->control.int_epg.p_epg,
1323 p_epg->p_current ? p_epg->p_current->i_start : -1 );
1327 p_cmd->control.int_epg.p_epg = p_epg;
1332 /* Modified control */
1333 case ES_OUT_SET_ES: /* arg1= es_out_id_t* */
1334 case ES_OUT_RESTART_ES: /* arg1= es_out_id_t* */
1335 case ES_OUT_SET_ES_DEFAULT: /* arg1= es_out_id_t* */
1336 p_cmd->control.p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
1339 case ES_OUT_SET_ES_STATE:/* arg1= es_out_id_t* arg2=bool */
1340 p_cmd->control.es_bool.p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
1341 p_cmd->control.es_bool.b_bool = (bool)va_arg( args, int );
1344 case ES_OUT_SET_ES_FMT: /* arg1= es_out_id_t* arg2=es_format_t* */
1346 p_cmd->control.es_fmt.p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
1347 es_format_t *p_fmt = (es_format_t*)va_arg( args, es_format_t * );
1351 p_cmd->control.es_fmt.p_fmt = malloc( sizeof(*p_fmt) );
1352 if( !p_cmd->control.es_fmt.p_fmt )
1353 return VLC_EGENERIC;
1354 es_format_Copy( p_cmd->control.es_fmt.p_fmt, p_fmt );
1358 p_cmd->control.es_fmt.p_fmt = p_fmt;
1365 return VLC_EGENERIC;
1370 static int CmdExecuteControl( es_out_t *p_out, ts_cmd_t *p_cmd )
1372 const int i_query = p_cmd->control.i_query;
1376 /* Pass-through control */
1377 case ES_OUT_SET_ACTIVE: /* arg1= bool */
1378 return es_out_Control( p_out, i_query, p_cmd->control.b_bool );
1380 case ES_OUT_SET_MODE: /* arg1= int */
1381 case ES_OUT_SET_GROUP: /* arg1= int */
1382 case ES_OUT_DEL_GROUP: /* arg1=int i_group */
1383 return es_out_Control( p_out, i_query, p_cmd->control.i_int );
1385 case ES_OUT_SET_PCR: /* arg1=int64_t i_pcr(microsecond!) (using default group 0)*/
1386 case ES_OUT_SET_NEXT_DISPLAY_TIME: /* arg1=int64_t i_pts(microsecond) */
1387 return es_out_Control( p_out, i_query, p_cmd->control.i_i64 );
1389 case ES_OUT_SET_GROUP_PCR: /* arg1= int i_group, arg2=int64_t i_pcr(microsecond!)*/
1390 return es_out_Control( p_out, i_query, p_cmd->control.int_i64.i_int, p_cmd->control.int_i64.i_i64 );
1392 case ES_OUT_RESET_PCR: /* no arg */
1393 return es_out_Control( p_out, i_query );
1395 case ES_OUT_SET_GROUP_META: /* arg1=int i_group arg2=vlc_meta_t* */
1396 return es_out_Control( p_out, i_query, p_cmd->control.int_meta.i_int, p_cmd->control.int_meta.p_meta );
1398 case ES_OUT_SET_GROUP_EPG: /* arg1=int i_group arg2=vlc_epg_t* */
1399 return es_out_Control( p_out, i_query, p_cmd->control.int_epg.i_int, p_cmd->control.int_epg.p_epg );
1401 /* Modified control */
1402 case ES_OUT_SET_ES: /* arg1= es_out_id_t* */
1403 case ES_OUT_RESTART_ES: /* arg1= es_out_id_t* */
1404 case ES_OUT_SET_ES_DEFAULT: /* arg1= es_out_id_t* */
1405 return es_out_Control( p_out, i_query, p_cmd->control.p_es->p_es );
1407 case ES_OUT_SET_ES_STATE:/* arg1= es_out_id_t* arg2=bool */
1408 return es_out_Control( p_out, i_query, p_cmd->control.es_bool.p_es->p_es, p_cmd->control.es_bool.b_bool );
1410 case ES_OUT_SET_ES_FMT: /* arg1= es_out_id_t* arg2=es_format_t* */
1411 return es_out_Control( p_out, i_query, p_cmd->control.es_fmt.p_es->p_es, p_cmd->control.es_fmt.p_fmt );
1415 return VLC_EGENERIC;
1418 static void CmdCleanControl( ts_cmd_t *p_cmd )
1420 if( p_cmd->control.i_query == ES_OUT_SET_GROUP_META &&
1421 p_cmd->control.int_meta.p_meta )
1423 vlc_meta_Delete( p_cmd->control.int_meta.p_meta );
1425 else if( p_cmd->control.i_query == ES_OUT_SET_GROUP_EPG &&
1426 p_cmd->control.int_epg.p_epg )
1428 vlc_epg_Delete( p_cmd->control.int_epg.p_epg );
1430 else if( p_cmd->control.i_query == ES_OUT_SET_ES_FMT &&
1431 p_cmd->control.es_fmt.p_fmt )
1433 es_format_Clean( p_cmd->control.es_fmt.p_fmt );
1434 free( p_cmd->control.es_fmt.p_fmt );
1439 /*****************************************************************************
1441 *****************************************************************************/
1442 static char *GetTmpPath( char *psz_path )
1444 if( psz_path && *psz_path )
1446 /* Make sure that the path exists and is a directory */
1448 const int i_ret = utf8_stat( psz_path, &s );
1450 if( i_ret < 0 && !utf8_mkdir( psz_path, 0600 ) )
1452 else if( i_ret == 0 && ( s.st_mode & S_IFDIR ) )
1457 /* Create a suitable path */
1458 #if defined (WIN32) && !defined (UNDER_CE)
1459 const DWORD dwCount = GetTempPathW( 0, NULL );
1460 wchar_t *psw_path = calloc( dwCount + 1, sizeof(wchar_t) );
1463 if( GetTempPathW( dwCount + 1, psw_path ) <= 0 )
1467 psw_path = _wgetcwd( NULL, 0 );
1474 psz_path = FromWide( psw_path );
1475 while( psz_path && *psz_path && psz_path[strlen( psz_path ) - 1] == '\\' )
1476 psz_path[strlen( psz_path ) - 1] = '\0';
1481 if( !psz_path || *psz_path == '\0' )
1484 return strdup( "C:" );
1487 psz_path = strdup( "/tmp" );
1493 static FILE *GetTmpFile( char **ppsz_file, const char *psz_path )
1501 if( asprintf( &psz_name, "%s/vlc-timeshift.XXXXXX", psz_path ) < 0 )
1505 fd = mkstemp( psz_name );
1506 *ppsz_file = psz_name;
1512 f = fdopen( fd, "rw+" );