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 *****************************************************************************/
56 /* XXX attribute_packed is (and MUST be) used ONLY to reduce memory usage */
57 #ifdef HAVE_ATTRIBUTE_PACKED
58 # define attribute_packed __attribute__((__packed__))
60 # define attribute_packed
71 typedef struct attribute_packed
77 typedef struct attribute_packed
82 typedef struct attribute_packed
86 int i_offset; /* We do not use file > INT_MAX */
89 typedef struct attribute_packed
126 /* FIXME Really too big (double make the whole thing too big) */
139 typedef struct attribute_packed
148 ts_cmd_control_t control;
152 typedef struct ts_storage_t ts_storage_t;
155 ts_storage_t *p_next;
158 char *psz_file; /* Filename */
159 size_t i_file_max; /* Max size in bytes */
160 int64_t i_file_size;/* Current size in bytes */
161 FILE *p_filew; /* FILE handle for data writing */
162 FILE *p_filer; /* FILE handle for data reading */
176 input_thread_t *p_input;
178 int64_t i_tmp_size_max;
179 const char *psz_tmp_path;
181 /* Lock for all following fields */
187 mtime_t i_pause_date;
193 mtime_t i_rate_delay;
196 mtime_t i_buffering_delay;
199 ts_storage_t *p_storage_r;
200 ts_storage_t *p_storage_w;
213 input_thread_t *p_input;
217 int64_t i_tmp_size_max; /* Maximal temporary file size in byte */
218 char *psz_tmp_path; /* Path for temporary files */
220 /* Lock for all following fields */
225 ts_thread_t *p_thread;
229 bool b_input_paused_source;
231 int i_input_rate_source;
238 static es_out_id_t *Add ( es_out_t *, const es_format_t * );
239 static int Send ( es_out_t *, es_out_id_t *, block_t * );
240 static void Del ( es_out_t *, es_out_id_t * );
241 static int Control( es_out_t *, int i_query, va_list );
242 static void Destroy( es_out_t * );
244 static int TsStart( es_out_t * );
245 static void TsAutoStop( es_out_t * );
247 static void TsStop( ts_thread_t * );
248 static void TsPushCmd( ts_thread_t *, ts_cmd_t * );
249 static int TsPopCmdLocked( ts_thread_t *, ts_cmd_t *, bool b_flush );
250 static bool TsHasCmd( ts_thread_t * );
251 static bool TsIsUnused( ts_thread_t * );
252 static int TsChangePause( ts_thread_t *, bool b_source_paused, bool b_paused, mtime_t i_date );
253 static int TsChangeRate( ts_thread_t *, int i_src_rate, int i_rate );
255 static void *TsRun( vlc_object_t * );
257 static ts_storage_t *TsStorageNew( const char *psz_path, int64_t i_tmp_size_max );
258 static void TsStorageDelete( ts_storage_t * );
259 static void TsStoragePack( ts_storage_t *p_storage );
260 static bool TsStorageIsFull( ts_storage_t *, const ts_cmd_t *p_cmd );
261 static bool TsStorageIsEmpty( ts_storage_t * );
262 static void TsStoragePushCmd( ts_storage_t *, const ts_cmd_t *p_cmd, bool b_flush );
263 static void TsStoragePopCmd( ts_storage_t *p_storage, ts_cmd_t *p_cmd, bool b_flush );
265 static void CmdClean( ts_cmd_t * );
266 static void cmd_cleanup_routine( void *p ) { CmdClean( p ); }
268 static int CmdInitAdd ( ts_cmd_t *, es_out_id_t *, const es_format_t *, bool b_copy );
269 static void CmdInitSend ( ts_cmd_t *, es_out_id_t *, block_t * );
270 static int CmdInitDel ( ts_cmd_t *, es_out_id_t * );
271 static int CmdInitControl( ts_cmd_t *, int i_query, va_list, bool b_copy );
274 static void CmdCleanAdd ( ts_cmd_t * );
275 static void CmdCleanSend ( ts_cmd_t * );
276 static void CmdCleanControl( ts_cmd_t *p_cmd );
278 /* XXX these functions will take the destination es_out_t */
279 static void CmdExecuteAdd ( es_out_t *, ts_cmd_t * );
280 static int CmdExecuteSend ( es_out_t *, ts_cmd_t * );
281 static void CmdExecuteDel ( es_out_t *, ts_cmd_t * );
282 static int CmdExecuteControl( es_out_t *, ts_cmd_t * );
285 static char *GetTmpPath( char *psz_path );
286 static FILE *GetTmpFile( char **ppsz_file, const char *psz_path );
288 /*****************************************************************************
289 * input_EsOutTimeshiftNew:
290 *****************************************************************************/
291 es_out_t *input_EsOutTimeshiftNew( input_thread_t *p_input, es_out_t *p_next_out, int i_rate )
293 es_out_t *p_out = malloc( sizeof(*p_out) );
297 es_out_sys_t *p_sys = malloc( sizeof(*p_sys) );
306 p_out->pf_send = Send;
308 p_out->pf_control = Control;
309 p_out->pf_destroy = Destroy;
310 p_out->p_sys = p_sys;
311 p_out->b_sout = p_input->p->p_sout != NULL;
314 p_sys->b_input_paused = false;
315 p_sys->b_input_paused_source = false;
316 p_sys->p_input = p_input;
317 p_sys->i_input_rate = i_rate;
318 p_sys->i_input_rate_source = i_rate;
320 p_sys->p_out = p_next_out;
321 vlc_mutex_init_recursive( &p_sys->lock );
323 p_sys->b_delayed = false;
324 p_sys->p_thread = NULL;
326 TAB_INIT( p_sys->i_es, p_sys->pp_es );
329 const int i_tmp_size_max = var_CreateGetInteger( p_input, "input-timeshift-granularity" );
330 if( i_tmp_size_max < 0 )
331 p_sys->i_tmp_size_max = 50*1024*1024;
333 p_sys->i_tmp_size_max = __MAX( i_tmp_size_max, 1*1024*1024 );
334 msg_Dbg( p_input, "using timeshift granularity of %d MBytes",
335 (int)p_sys->i_tmp_size_max/(1024*1024) );
337 char *psz_tmp_path = var_CreateGetNonEmptyString( p_input, "input-timeshift-path" );
338 p_sys->psz_tmp_path = GetTmpPath( psz_tmp_path );
339 msg_Dbg( p_input, "using timeshift path '%s'", p_sys->psz_tmp_path );
342 #define S(t) msg_Err( p_input, "SIZEOF("#t")=%d", sizeof(t) )
354 /*****************************************************************************
356 *****************************************************************************/
357 static void Destroy( es_out_t *p_out )
359 es_out_sys_t *p_sys = p_out->p_sys;
361 if( p_sys->b_delayed )
363 TsStop( p_sys->p_thread );
364 p_sys->b_delayed = false;
367 while( p_sys->i_es > 0 )
368 Del( p_out, p_sys->pp_es[0] );
369 TAB_CLEAN( p_sys->i_es, p_sys->pp_es );
371 free( p_sys->psz_tmp_path );
372 vlc_mutex_destroy( &p_sys->lock );
377 static es_out_id_t *Add( es_out_t *p_out, const es_format_t *p_fmt )
379 es_out_sys_t *p_sys = p_out->p_sys;
382 es_out_id_t *p_es = malloc( sizeof( *p_es ) );
386 vlc_mutex_lock( &p_sys->lock );
390 if( CmdInitAdd( &cmd, p_es, p_fmt, p_sys->b_delayed ) )
392 vlc_mutex_unlock( &p_sys->lock );
397 TAB_APPEND( p_sys->i_es, p_sys->pp_es, p_es );
399 if( p_sys->b_delayed )
400 TsPushCmd( p_sys->p_thread, &cmd );
402 CmdExecuteAdd( p_sys->p_out, &cmd );
404 vlc_mutex_unlock( &p_sys->lock );
408 static int Send( es_out_t *p_out, es_out_id_t *p_es, block_t *p_block )
410 es_out_sys_t *p_sys = p_out->p_sys;
412 int i_ret = VLC_SUCCESS;
414 vlc_mutex_lock( &p_sys->lock );
418 CmdInitSend( &cmd, p_es, p_block );
419 if( p_sys->b_delayed )
420 TsPushCmd( p_sys->p_thread, &cmd );
422 i_ret = CmdExecuteSend( p_sys->p_out, &cmd) ;
424 vlc_mutex_unlock( &p_sys->lock );
428 static void Del( es_out_t *p_out, es_out_id_t *p_es )
430 es_out_sys_t *p_sys = p_out->p_sys;
433 vlc_mutex_lock( &p_sys->lock );
437 CmdInitDel( &cmd, p_es );
438 if( p_sys->b_delayed )
439 TsPushCmd( p_sys->p_thread, &cmd );
441 CmdExecuteDel( p_sys->p_out, &cmd );
443 TAB_REMOVE( p_sys->i_es, p_sys->pp_es, p_es );
445 vlc_mutex_unlock( &p_sys->lock );
448 static int ControlLockedGetEmpty( es_out_t *p_out, bool *pb_empty )
450 es_out_sys_t *p_sys = p_out->p_sys;
452 if( p_sys->b_delayed && TsHasCmd( p_sys->p_thread ) )
455 *pb_empty = es_out_GetEmpty( p_sys->p_out );
459 static int ControlLockedGetWakeup( es_out_t *p_out, mtime_t *pi_wakeup )
461 es_out_sys_t *p_sys = p_out->p_sys;
463 if( p_sys->b_delayed )
465 assert( !p_sys->p_input->p->b_can_pace_control );
470 *pi_wakeup = es_out_GetWakeup( p_sys->p_out );
475 static int ControlLockedGetBuffering( es_out_t *p_out, bool *pb_buffering )
477 es_out_sys_t *p_sys = p_out->p_sys;
479 if( p_sys->b_delayed )
480 *pb_buffering = true;
482 *pb_buffering = es_out_GetBuffering( p_sys->p_out );
486 static int ControlLockedSetPauseState( es_out_t *p_out, bool b_source_paused, bool b_paused, mtime_t i_date )
488 es_out_sys_t *p_sys = p_out->p_sys;
491 if( !p_sys->b_delayed && !b_source_paused == !b_paused )
493 i_ret = es_out_SetPauseState( p_sys->p_out, b_source_paused, b_paused, i_date );
497 i_ret = VLC_EGENERIC;
498 if( !p_sys->p_input->p->b_can_pace_control )
500 if( !p_sys->b_delayed )
502 if( p_sys->b_delayed )
503 i_ret = TsChangePause( p_sys->p_thread, b_source_paused, b_paused, i_date );
507 /* XXX we may do it BUT it would be better to finish the clock clean up+improvments
508 * and so be able to advertize correctly pace control property in access
510 msg_Err( p_sys->p_input, "EsOutTimeshift does not work with streams that have space control" );
516 p_sys->b_input_paused_source = b_source_paused;
517 p_sys->b_input_paused = b_paused;
521 static int ControlLockedSetRate( es_out_t *p_out, int i_src_rate, int i_rate )
523 es_out_sys_t *p_sys = p_out->p_sys;
526 if( !p_sys->b_delayed && i_src_rate == i_rate )
528 i_ret = es_out_SetRate( p_sys->p_out, i_src_rate, i_rate );
532 i_ret = VLC_EGENERIC;
533 if( !p_sys->p_input->p->b_can_pace_control )
535 if( !p_sys->b_delayed )
537 if( p_sys->b_delayed )
538 i_ret = TsChangeRate( p_sys->p_thread, i_src_rate, i_rate );
542 /* XXX we may do it BUT it would be better to finish the clock clean up+improvments
543 * and so be able to advertize correctly pace control property in access
545 msg_Err( p_sys->p_input, "EsOutTimeshift does not work with streams that have space control" );
552 p_sys->i_input_rate_source = i_src_rate;
553 p_sys->i_input_rate = i_rate;
557 static int ControlLockedSetTime( es_out_t *p_out, mtime_t i_date )
559 es_out_sys_t *p_sys = p_out->p_sys;
561 if( !p_sys->b_delayed )
562 return es_out_SetTime( p_sys->p_out, i_date );
565 msg_Err( p_sys->p_input, "EsOutTimeshift does not yet support time change" );
568 static int ControlLockedSetFrameNext( es_out_t *p_out )
570 es_out_sys_t *p_sys = p_out->p_sys;
572 return es_out_SetFrameNext( p_sys->p_out );
575 static int ControlLocked( es_out_t *p_out, int i_query, va_list args )
577 es_out_sys_t *p_sys = p_out->p_sys;
581 /* Invalid query for this es_out level */
582 case ES_OUT_SET_ES_BY_ID:
583 case ES_OUT_RESTART_ES_BY_ID:
584 case ES_OUT_SET_ES_DEFAULT_BY_ID:
585 case ES_OUT_SET_DELAY:
586 case ES_OUT_SET_RECORD_STATE:
590 /* Pass-through control */
591 case ES_OUT_SET_ACTIVE:
592 case ES_OUT_SET_MODE:
593 case ES_OUT_SET_GROUP:
595 case ES_OUT_SET_GROUP_PCR:
596 case ES_OUT_RESET_PCR:
597 case ES_OUT_SET_NEXT_DISPLAY_TIME:
598 case ES_OUT_SET_GROUP_META:
599 case ES_OUT_SET_GROUP_EPG:
600 case ES_OUT_SET_ES_SCRAMBLED_STATE:
601 case ES_OUT_DEL_GROUP:
602 case ES_OUT_SET_META:
604 case ES_OUT_RESTART_ES:
605 case ES_OUT_SET_ES_DEFAULT:
606 case ES_OUT_SET_ES_STATE:
607 case ES_OUT_SET_ES_FMT:
608 case ES_OUT_SET_TIMES:
609 case ES_OUT_SET_JITTER:
612 if( CmdInitControl( &cmd, i_query, args, p_sys->b_delayed ) )
614 if( p_sys->b_delayed )
616 TsPushCmd( p_sys->p_thread, &cmd );
619 return CmdExecuteControl( p_sys->p_out, &cmd );
622 /* Special control when delayed */
623 case ES_OUT_GET_ES_STATE:
625 es_out_id_t *p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
626 bool *pb_enabled = (bool*)va_arg( args, bool* );
628 if( p_sys->b_delayed )
633 return es_out_Control( p_sys->p_out, ES_OUT_GET_ES_STATE, p_es->p_es, pb_enabled );
636 /* Special internal input control */
637 case ES_OUT_GET_EMPTY:
639 bool *pb_empty = (bool*)va_arg( args, bool* );
640 return ControlLockedGetEmpty( p_out, pb_empty );
642 case ES_OUT_GET_WAKE_UP: /* TODO ? */
644 mtime_t *pi_wakeup = (mtime_t*)va_arg( args, mtime_t* );
645 return ControlLockedGetWakeup( p_out, pi_wakeup );
647 case ES_OUT_GET_BUFFERING:
649 bool *pb_buffering = (bool *)va_arg( args, bool* );
650 return ControlLockedGetBuffering( p_out, pb_buffering );
652 case ES_OUT_SET_PAUSE_STATE:
654 const bool b_source_paused = (bool)va_arg( args, int );
655 const bool b_paused = (bool)va_arg( args, int );
656 const mtime_t i_date = (mtime_t) va_arg( args, mtime_t );
658 return ControlLockedSetPauseState( p_out, b_source_paused, b_paused, i_date );
660 case ES_OUT_SET_RATE:
662 const int i_src_rate = (int)va_arg( args, int );
663 const int i_rate = (int)va_arg( args, int );
665 return ControlLockedSetRate( p_out, i_src_rate, i_rate );
667 case ES_OUT_SET_TIME:
669 const mtime_t i_date = (mtime_t)va_arg( args, mtime_t );
671 return ControlLockedSetTime( p_out, i_date );
673 case ES_OUT_SET_FRAME_NEXT:
675 return ControlLockedSetFrameNext( p_out );
679 msg_Err( p_sys->p_input, "Unknown es_out_Control query !" );
684 static int Control( es_out_t *p_out, int i_query, va_list args )
686 es_out_sys_t *p_sys = p_out->p_sys;
689 vlc_mutex_lock( &p_sys->lock );
693 i_ret = ControlLocked( p_out, i_query, args );
695 vlc_mutex_unlock( &p_sys->lock );
700 /*****************************************************************************
702 *****************************************************************************/
703 static void TsDestructor( vlc_object_t *p_this )
705 ts_thread_t *p_ts = (ts_thread_t*)p_this;
707 vlc_cond_destroy( &p_ts->wait );
708 vlc_mutex_destroy( &p_ts->lock );
710 static int TsStart( es_out_t *p_out )
712 es_out_sys_t *p_sys = p_out->p_sys;
715 assert( !p_sys->b_delayed );
717 p_sys->p_thread = p_ts = vlc_custom_create( p_sys->p_input, sizeof(ts_thread_t),
718 VLC_OBJECT_GENERIC, "es out timeshift" );
722 p_ts->i_tmp_size_max = p_sys->i_tmp_size_max;
723 p_ts->psz_tmp_path = p_sys->psz_tmp_path;
724 p_ts->p_input = p_sys->p_input;
725 p_ts->p_out = p_sys->p_out;
726 vlc_mutex_init( &p_ts->lock );
727 vlc_cond_init( &p_ts->wait );
728 p_ts->b_paused = p_sys->b_input_paused && !p_sys->b_input_paused_source;
729 p_ts->i_pause_date = p_ts->b_paused ? mdate() : -1;
730 p_ts->i_rate_source = p_sys->i_input_rate_source;
731 p_ts->i_rate = p_sys->i_input_rate;
732 p_ts->i_rate_date = -1;
733 p_ts->i_rate_delay = 0;
734 p_ts->i_buffering_delay = 0;
735 p_ts->i_cmd_delay = 0;
736 p_ts->p_storage_r = NULL;
737 p_ts->p_storage_w = NULL;
739 vlc_object_set_destructor( p_ts, TsDestructor );
741 p_sys->b_delayed = true;
742 if( vlc_thread_create( p_ts, "es out timeshift",
743 TsRun, VLC_THREAD_PRIORITY_INPUT ) )
745 msg_Err( p_sys->p_input, "cannot create input thread" );
747 vlc_object_release( p_ts );
749 p_sys->b_delayed = false;
755 static void TsAutoStop( es_out_t *p_out )
757 es_out_sys_t *p_sys = p_out->p_sys;
759 if( !p_sys->b_delayed || !TsIsUnused( p_sys->p_thread ) )
762 msg_Warn( p_sys->p_input, "es out timeshift: auto stop" );
763 TsStop( p_sys->p_thread );
765 p_sys->b_delayed = false;
767 static void TsStop( ts_thread_t *p_ts )
769 vlc_object_kill( p_ts );
770 vlc_thread_join( p_ts );
772 vlc_mutex_lock( &p_ts->lock );
777 if( TsPopCmdLocked( p_ts, &cmd, true ) )
782 assert( !p_ts->p_storage_r || !p_ts->p_storage_r->p_next );
783 if( p_ts->p_storage_r )
784 TsStorageDelete( p_ts->p_storage_r );
785 vlc_mutex_unlock( &p_ts->lock );
787 vlc_object_release( p_ts );
789 static void TsPushCmd( ts_thread_t *p_ts, ts_cmd_t *p_cmd )
791 vlc_mutex_lock( &p_ts->lock );
793 if( !p_ts->p_storage_w || TsStorageIsFull( p_ts->p_storage_w, p_cmd ) )
795 ts_storage_t *p_storage = TsStorageNew( p_ts->psz_tmp_path, p_ts->i_tmp_size_max );
800 vlc_mutex_unlock( &p_ts->lock );
801 /* TODO warn the user (but only once) */
805 if( !p_ts->p_storage_w )
807 p_ts->p_storage_r = p_ts->p_storage_w = p_storage;
811 TsStoragePack( p_ts->p_storage_w );
812 p_ts->p_storage_w->p_next = p_storage;
813 p_ts->p_storage_w = p_storage;
817 /* TODO return error and warn the user (but only once) */
818 TsStoragePushCmd( p_ts->p_storage_w, p_cmd, p_ts->p_storage_r == p_ts->p_storage_w );
820 vlc_cond_signal( &p_ts->wait );
822 vlc_mutex_unlock( &p_ts->lock );
824 static int TsPopCmdLocked( ts_thread_t *p_ts, ts_cmd_t *p_cmd, bool b_flush )
826 vlc_assert_locked( &p_ts->lock );
828 if( TsStorageIsEmpty( p_ts->p_storage_r ) )
831 TsStoragePopCmd( p_ts->p_storage_r, p_cmd, b_flush );
833 while( p_ts->p_storage_r && TsStorageIsEmpty( p_ts->p_storage_r ) )
835 ts_storage_t *p_next = p_ts->p_storage_r->p_next;
839 TsStorageDelete( p_ts->p_storage_r );
840 p_ts->p_storage_r = p_next;
845 static bool TsHasCmd( ts_thread_t *p_ts )
849 vlc_mutex_lock( &p_ts->lock );
850 b_cmd = TsStorageIsEmpty( p_ts->p_storage_r );
851 vlc_mutex_unlock( &p_ts->lock );
855 static bool TsIsUnused( ts_thread_t *p_ts )
859 vlc_mutex_lock( &p_ts->lock );
860 b_unused = !p_ts->b_paused &&
861 p_ts->i_rate == p_ts->i_rate_source &&
862 TsStorageIsEmpty( p_ts->p_storage_r );
863 vlc_mutex_unlock( &p_ts->lock );
867 static int TsChangePause( ts_thread_t *p_ts, bool b_source_paused, bool b_paused, mtime_t i_date )
869 vlc_mutex_lock( &p_ts->lock );
874 assert( !b_source_paused );
875 i_ret = es_out_SetPauseState( p_ts->p_out, true, true, i_date );
879 i_ret = es_out_SetPauseState( p_ts->p_out, false, false, i_date );
886 assert( p_ts->i_pause_date > 0 );
888 p_ts->i_cmd_delay += i_date - p_ts->i_pause_date;
891 p_ts->b_paused = b_paused;
892 p_ts->i_pause_date = i_date;
894 vlc_cond_signal( &p_ts->wait );
896 vlc_mutex_unlock( &p_ts->lock );
899 static int TsChangeRate( ts_thread_t *p_ts, int i_src_rate, int i_rate )
903 vlc_mutex_lock( &p_ts->lock );
904 p_ts->i_cmd_delay += p_ts->i_rate_delay;
906 p_ts->i_rate_date = -1;
907 p_ts->i_rate_delay = 0;
908 p_ts->i_rate = i_rate;
909 p_ts->i_rate_source = i_src_rate;
911 i_ret = es_out_SetRate( p_ts->p_out, i_rate, i_rate );
912 vlc_mutex_unlock( &p_ts->lock );
917 static void *TsRun( vlc_object_t *p_thread )
919 ts_thread_t *p_ts = (ts_thread_t*)p_thread;
920 mtime_t i_buffering_date = -1;
928 /* Pop a command to execute */
929 vlc_mutex_lock( &p_ts->lock );
930 mutex_cleanup_push( &p_ts->lock );
934 const int canc = vlc_savecancel();
935 b_buffering = es_out_GetBuffering( p_ts->p_out );
937 if( ( !p_ts->b_paused || b_buffering ) && !TsPopCmdLocked( p_ts, &cmd, false ) )
939 vlc_restorecancel( canc );
942 vlc_restorecancel( canc );
944 vlc_cond_wait( &p_ts->wait, &p_ts->lock );
947 if( b_buffering && i_buffering_date < 0 )
949 i_buffering_date = cmd.i_date;
951 else if( i_buffering_date > 0 )
953 p_ts->i_buffering_delay += i_buffering_date - cmd.i_date; /* It is < 0 */
955 i_buffering_date = cmd.i_date;
957 i_buffering_date = -1;
960 if( p_ts->i_rate_date < 0 )
961 p_ts->i_rate_date = cmd.i_date;
963 p_ts->i_rate_delay = 0;
964 if( p_ts->i_rate_source != p_ts->i_rate )
966 const mtime_t i_duration = cmd.i_date - p_ts->i_rate_date;
967 p_ts->i_rate_delay = i_duration * p_ts->i_rate / p_ts->i_rate_source - i_duration;
969 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 )
971 const int canc = vlc_savecancel();
973 /* Auto reset to rate 1.0 */
974 msg_Warn( p_ts->p_input, "es out timeshift: auto reset rate to %d", p_ts->i_rate_source );
976 p_ts->i_cmd_delay = 0;
977 p_ts->i_buffering_delay = 0;
979 p_ts->i_rate_delay = 0;
980 p_ts->i_rate_date = -1;
981 p_ts->i_rate = p_ts->i_rate_source;
983 if( !es_out_SetRate( p_ts->p_out, p_ts->i_rate_source, p_ts->i_rate ) )
985 vlc_value_t val = { .i_int = p_ts->i_rate };
987 * FIXME it is perfectly safe BUT it is ugly as it may hide a
988 * rate change requested by user */
989 input_ControlPush( p_ts->p_input, INPUT_CONTROL_SET_RATE, &val );
992 vlc_restorecancel( canc );
994 i_deadline = cmd.i_date + p_ts->i_cmd_delay + p_ts->i_rate_delay + p_ts->i_buffering_delay;
998 /* Regulate the speed of command processing to the same one than
1000 vlc_cleanup_push( cmd_cleanup_routine, &cmd );
1002 mwait( i_deadline );
1006 /* Execute the command */
1007 const int canc = vlc_savecancel();
1008 switch( cmd.i_type )
1011 CmdExecuteAdd( p_ts->p_out, &cmd );
1012 CmdCleanAdd( &cmd );
1015 CmdExecuteSend( p_ts->p_out, &cmd );
1016 CmdCleanSend( &cmd );
1019 CmdExecuteControl( p_ts->p_out, &cmd );
1020 CmdCleanControl( &cmd );
1023 CmdExecuteDel( p_ts->p_out, &cmd );
1029 vlc_restorecancel( canc );
1035 /*****************************************************************************
1037 *****************************************************************************/
1038 static ts_storage_t *TsStorageNew( const char *psz_tmp_path, int64_t i_tmp_size_max )
1040 ts_storage_t *p_storage = calloc( 1, sizeof(ts_storage_t) );
1045 p_storage->p_next = NULL;
1048 p_storage->i_file_max = i_tmp_size_max;
1049 p_storage->i_file_size = 0;
1050 p_storage->p_filew = GetTmpFile( &p_storage->psz_file, psz_tmp_path );
1051 if( p_storage->psz_file )
1052 p_storage->p_filer = utf8_fopen( p_storage->psz_file, "rb" );
1055 p_storage->i_cmd_w = 0;
1056 p_storage->i_cmd_r = 0;
1057 p_storage->i_cmd_max = 30000;
1058 p_storage->p_cmd = malloc( p_storage->i_cmd_max * sizeof(*p_storage->p_cmd) );
1059 //fprintf( stderr, "\nSTORAGE name=%s size=%d kbytes\n", p_storage->psz_file, p_storage->i_cmd_max * sizeof(*p_storage->p_cmd) /1024 );
1061 if( !p_storage->p_cmd || !p_storage->p_filew || !p_storage->p_filer )
1063 TsStorageDelete( p_storage );
1068 static void TsStorageDelete( ts_storage_t *p_storage )
1070 while( p_storage->i_cmd_r < p_storage->i_cmd_w )
1074 TsStoragePopCmd( p_storage, &cmd, true );
1078 free( p_storage->p_cmd );
1080 if( p_storage->p_filer )
1081 fclose( p_storage->p_filer );
1082 if( p_storage->p_filew )
1083 fclose( p_storage->p_filew );
1085 if( p_storage->psz_file )
1087 utf8_unlink( p_storage->psz_file );
1088 free( p_storage->psz_file );
1093 static void TsStoragePack( ts_storage_t *p_storage )
1095 /* Try to release a bit of memory */
1096 if( p_storage->i_cmd_w >= p_storage->i_cmd_max )
1099 p_storage->i_cmd_max = __MAX( p_storage->i_cmd_w, 1 );
1101 ts_cmd_t *p_new = realloc( p_storage->p_cmd, p_storage->i_cmd_max * sizeof(*p_storage->p_cmd) );
1103 p_storage->p_cmd = p_new;
1105 static bool TsStorageIsFull( ts_storage_t *p_storage, const ts_cmd_t *p_cmd )
1107 if( p_cmd && p_cmd->i_type == C_SEND && p_storage->i_cmd_w > 0 )
1109 size_t i_size = sizeof(*p_cmd->send.p_block) + p_cmd->send.p_block->i_buffer;
1111 if( p_storage->i_file_size + i_size >= p_storage->i_file_max )
1114 return p_storage->i_cmd_w >= p_storage->i_cmd_max;
1116 static bool TsStorageIsEmpty( ts_storage_t *p_storage )
1118 return !p_storage || p_storage->i_cmd_r >= p_storage->i_cmd_w;
1120 static void TsStoragePushCmd( ts_storage_t *p_storage, const ts_cmd_t *p_cmd, bool b_flush )
1122 ts_cmd_t cmd = *p_cmd;
1124 assert( !TsStorageIsFull( p_storage, p_cmd ) );
1126 if( cmd.i_type == C_SEND )
1128 block_t *p_block = cmd.send.p_block;
1130 cmd.send.p_block = NULL;
1131 cmd.send.i_offset = ftell( p_storage->p_filew );
1133 if( fwrite( p_block, sizeof(*p_block), 1, p_storage->p_filew ) != 1 )
1135 block_Release( p_block );
1138 p_storage->i_file_size += sizeof(*p_block);
1139 if( p_block->i_buffer > 0 )
1141 if( fwrite( p_block->p_buffer, p_block->i_buffer, 1, p_storage->p_filew ) != 1 )
1143 block_Release( p_block );
1147 p_storage->i_file_size += p_block->i_buffer;
1148 block_Release( p_block );
1151 fflush( p_storage->p_filew );
1153 p_storage->p_cmd[p_storage->i_cmd_w++] = cmd;
1155 static void TsStoragePopCmd( ts_storage_t *p_storage, ts_cmd_t *p_cmd, bool b_flush )
1157 assert( !TsStorageIsEmpty( p_storage ) );
1159 *p_cmd = p_storage->p_cmd[p_storage->i_cmd_r++];
1160 if( p_cmd->i_type == C_SEND )
1165 !fseek( p_storage->p_filer, p_cmd->send.i_offset, SEEK_SET ) &&
1166 fread( &block, sizeof(block), 1, p_storage->p_filer ) == 1 )
1168 block_t *p_block = block_Alloc( block.i_buffer );
1171 p_block->i_dts = block.i_dts;
1172 p_block->i_pts = block.i_pts;
1173 p_block->i_flags = block.i_flags;
1174 p_block->i_length = block.i_length;
1175 p_block->i_rate = block.i_rate;
1176 p_block->i_nb_samples = block.i_nb_samples;
1177 p_block->i_buffer = fread( p_block->p_buffer, 1, block.i_buffer, p_storage->p_filer );
1179 p_cmd->send.p_block = p_block;
1183 //fprintf( stderr, "TsStoragePopCmd: %m\n" );
1184 p_cmd->send.p_block = block_Alloc( 1 );
1189 /*****************************************************************************
1191 *****************************************************************************/
1192 static void CmdClean( ts_cmd_t *p_cmd )
1194 switch( p_cmd->i_type )
1197 CmdCleanAdd( p_cmd );
1200 CmdCleanSend( p_cmd );
1203 CmdCleanControl( p_cmd );
1213 static int CmdInitAdd( ts_cmd_t *p_cmd, es_out_id_t *p_es, const es_format_t *p_fmt, bool b_copy )
1215 p_cmd->i_type = C_ADD;
1216 p_cmd->i_date = mdate();
1217 p_cmd->add.p_es = p_es;
1220 p_cmd->add.p_fmt = malloc( sizeof(*p_fmt) );
1221 if( !p_cmd->add.p_fmt )
1222 return VLC_EGENERIC;
1223 es_format_Copy( p_cmd->add.p_fmt, p_fmt );
1227 p_cmd->add.p_fmt = (es_format_t*)p_fmt;
1231 static void CmdExecuteAdd( es_out_t *p_out, ts_cmd_t *p_cmd )
1233 p_cmd->add.p_es->p_es = es_out_Add( p_out, p_cmd->add.p_fmt );
1235 static void CmdCleanAdd( ts_cmd_t *p_cmd )
1237 es_format_Clean( p_cmd->add.p_fmt );
1238 free( p_cmd->add.p_fmt );
1241 static void CmdInitSend( ts_cmd_t *p_cmd, es_out_id_t *p_es, block_t *p_block )
1243 p_cmd->i_type = C_SEND;
1244 p_cmd->i_date = mdate();
1245 p_cmd->send.p_es = p_es;
1246 p_cmd->send.p_block = p_block;
1248 static int CmdExecuteSend( es_out_t *p_out, ts_cmd_t *p_cmd )
1250 block_t *p_block = p_cmd->send.p_block;
1252 p_cmd->send.p_block = NULL;
1256 if( p_cmd->send.p_es->p_es )
1257 return es_out_Send( p_out, p_cmd->send.p_es->p_es, p_block );
1258 block_Release( p_block );
1260 return VLC_EGENERIC;
1262 static void CmdCleanSend( ts_cmd_t *p_cmd )
1264 if( p_cmd->send.p_block )
1265 block_Release( p_cmd->send.p_block );
1268 static int CmdInitDel( ts_cmd_t *p_cmd, es_out_id_t *p_es )
1270 p_cmd->i_type = C_DEL;
1271 p_cmd->i_date = mdate();
1272 p_cmd->del.p_es = p_es;
1275 static void CmdExecuteDel( es_out_t *p_out, ts_cmd_t *p_cmd )
1277 if( p_cmd->del.p_es->p_es )
1278 es_out_Del( p_out, p_cmd->del.p_es->p_es );
1279 free( p_cmd->del.p_es );
1282 static int CmdInitControl( ts_cmd_t *p_cmd, int i_query, va_list args, bool b_copy )
1284 p_cmd->i_type = C_CONTROL;
1285 p_cmd->i_date = mdate();
1286 p_cmd->control.i_query = i_query;
1290 /* Pass-through control */
1291 case ES_OUT_SET_ACTIVE: /* arg1= bool */
1292 p_cmd->control.b_bool = (bool)va_arg( args, int );
1295 case ES_OUT_SET_MODE: /* arg1= int */
1296 case ES_OUT_SET_GROUP: /* arg1= int */
1297 case ES_OUT_DEL_GROUP: /* arg1=int i_group */
1298 p_cmd->control.i_int = (int)va_arg( args, int );
1301 case ES_OUT_SET_PCR: /* arg1=int64_t i_pcr(microsecond!) (using default group 0)*/
1302 case ES_OUT_SET_NEXT_DISPLAY_TIME: /* arg1=int64_t i_pts(microsecond) */
1303 p_cmd->control.i_i64 = (int64_t)va_arg( args, int64_t );
1306 case ES_OUT_SET_GROUP_PCR: /* arg1= int i_group, arg2=int64_t i_pcr(microsecond!)*/
1307 p_cmd->control.int_i64.i_int = (int)va_arg( args, int );
1308 p_cmd->control.int_i64.i_i64 = (int64_t)va_arg( args, int64_t );
1311 case ES_OUT_SET_ES_SCRAMBLED_STATE:
1312 p_cmd->control.es_bool.p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
1313 p_cmd->control.es_bool.b_bool = (bool)va_arg( args, int );
1316 case ES_OUT_RESET_PCR: /* no arg */
1319 case ES_OUT_SET_META: /* arg1=const vlc_meta_t* */
1320 case ES_OUT_SET_GROUP_META: /* arg1=int i_group arg2=const vlc_meta_t* */
1322 if( i_query == ES_OUT_SET_GROUP_META )
1323 p_cmd->control.int_meta.i_int = (int)va_arg( args, int );
1324 const vlc_meta_t *p_meta = va_arg( args, const vlc_meta_t * );
1328 p_cmd->control.int_meta.p_meta = vlc_meta_New();
1329 if( !p_cmd->control.int_meta.p_meta )
1330 return VLC_EGENERIC;
1331 vlc_meta_Merge( p_cmd->control.int_meta.p_meta, p_meta );
1335 /* The cast is only needed to avoid warning */
1336 p_cmd->control.int_meta.p_meta = (vlc_meta_t*)p_meta;
1341 case ES_OUT_SET_GROUP_EPG: /* arg1=int i_group arg2=const vlc_epg_t* */
1343 p_cmd->control.int_epg.i_int = (int)va_arg( args, int );
1344 const vlc_epg_t *p_epg = va_arg( args, const vlc_epg_t * );
1348 p_cmd->control.int_epg.p_epg = vlc_epg_New( p_epg->psz_name );
1349 if( !p_cmd->control.int_epg.p_epg )
1350 return VLC_EGENERIC;
1351 for( int i = 0; i < p_epg->i_event; i++ )
1353 vlc_epg_event_t *p_evt = p_epg->pp_event[i];
1355 vlc_epg_AddEvent( p_cmd->control.int_epg.p_epg,
1356 p_evt->i_start, p_evt->i_duration,
1358 p_evt->psz_short_description, p_evt->psz_description );
1360 vlc_epg_SetCurrent( p_cmd->control.int_epg.p_epg,
1361 p_epg->p_current ? p_epg->p_current->i_start : -1 );
1365 /* The cast is only needed to avoid warning */
1366 p_cmd->control.int_epg.p_epg = (vlc_epg_t*)p_epg;
1371 /* Modified control */
1372 case ES_OUT_SET_ES: /* arg1= es_out_id_t* */
1373 case ES_OUT_RESTART_ES: /* arg1= es_out_id_t* */
1374 case ES_OUT_SET_ES_DEFAULT: /* arg1= es_out_id_t* */
1375 p_cmd->control.p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
1378 case ES_OUT_SET_ES_STATE:/* arg1= es_out_id_t* arg2=bool */
1379 p_cmd->control.es_bool.p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
1380 p_cmd->control.es_bool.b_bool = (bool)va_arg( args, int );
1383 case ES_OUT_SET_ES_FMT: /* arg1= es_out_id_t* arg2=es_format_t* */
1385 p_cmd->control.es_fmt.p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
1386 es_format_t *p_fmt = (es_format_t*)va_arg( args, es_format_t * );
1390 p_cmd->control.es_fmt.p_fmt = malloc( sizeof(*p_fmt) );
1391 if( !p_cmd->control.es_fmt.p_fmt )
1392 return VLC_EGENERIC;
1393 es_format_Copy( p_cmd->control.es_fmt.p_fmt, p_fmt );
1397 p_cmd->control.es_fmt.p_fmt = p_fmt;
1401 case ES_OUT_SET_TIMES:
1403 double f_position = (double)va_arg( args, double );
1404 mtime_t i_time = (mtime_t)va_arg( args, mtime_t );
1405 mtime_t i_length = (mtime_t)va_arg( args, mtime_t );
1407 p_cmd->control.times.f_position = f_position;
1408 p_cmd->control.times.i_time = i_time;
1409 p_cmd->control.times.i_length = i_length;
1412 case ES_OUT_SET_JITTER:
1414 mtime_t i_pts_delay = (mtime_t)va_arg( args, mtime_t );
1415 int i_cr_average = (int)va_arg( args, int );
1417 p_cmd->control.jitter.i_pts_delay = i_pts_delay;
1418 p_cmd->control.jitter.i_cr_average = i_cr_average;
1424 return VLC_EGENERIC;
1429 static int CmdExecuteControl( es_out_t *p_out, ts_cmd_t *p_cmd )
1431 const int i_query = p_cmd->control.i_query;
1435 /* Pass-through control */
1436 case ES_OUT_SET_ACTIVE: /* arg1= bool */
1437 return es_out_Control( p_out, i_query, p_cmd->control.b_bool );
1439 case ES_OUT_SET_MODE: /* arg1= int */
1440 case ES_OUT_SET_GROUP: /* arg1= int */
1441 case ES_OUT_DEL_GROUP: /* arg1=int i_group */
1442 return es_out_Control( p_out, i_query, p_cmd->control.i_int );
1444 case ES_OUT_SET_PCR: /* arg1=int64_t i_pcr(microsecond!) (using default group 0)*/
1445 case ES_OUT_SET_NEXT_DISPLAY_TIME: /* arg1=int64_t i_pts(microsecond) */
1446 return es_out_Control( p_out, i_query, p_cmd->control.i_i64 );
1448 case ES_OUT_SET_GROUP_PCR: /* arg1= int i_group, arg2=int64_t i_pcr(microsecond!)*/
1449 return es_out_Control( p_out, i_query, p_cmd->control.int_i64.i_int,
1450 p_cmd->control.int_i64.i_i64 );
1452 case ES_OUT_RESET_PCR: /* no arg */
1453 return es_out_Control( p_out, i_query );
1455 case ES_OUT_SET_GROUP_META: /* arg1=int i_group arg2=const vlc_meta_t* */
1456 return es_out_Control( p_out, i_query, p_cmd->control.int_meta.i_int,
1457 p_cmd->control.int_meta.p_meta );
1459 case ES_OUT_SET_GROUP_EPG: /* arg1=int i_group arg2=const vlc_epg_t* */
1460 return es_out_Control( p_out, i_query, p_cmd->control.int_epg.i_int,
1461 p_cmd->control.int_epg.p_epg );
1463 case ES_OUT_SET_ES_SCRAMBLED_STATE: /* arg1=int es_out_id_t* arg2=bool */
1464 return es_out_Control( p_out, i_query, p_cmd->control.es_bool.p_es->p_es,
1465 p_cmd->control.es_bool.b_bool );
1467 case ES_OUT_SET_META: /* arg1=const vlc_meta_t* */
1468 return es_out_Control( p_out, i_query, p_cmd->control.int_meta.p_meta );
1470 /* Modified control */
1471 case ES_OUT_SET_ES: /* arg1= es_out_id_t* */
1472 case ES_OUT_RESTART_ES: /* arg1= es_out_id_t* */
1473 case ES_OUT_SET_ES_DEFAULT: /* arg1= es_out_id_t* */
1474 return es_out_Control( p_out, i_query, p_cmd->control.p_es->p_es );
1476 case ES_OUT_SET_ES_STATE:/* arg1= es_out_id_t* arg2=bool */
1477 return es_out_Control( p_out, i_query, p_cmd->control.es_bool.p_es->p_es,
1478 p_cmd->control.es_bool.b_bool );
1480 case ES_OUT_SET_ES_FMT: /* arg1= es_out_id_t* arg2=es_format_t* */
1481 return es_out_Control( p_out, i_query, p_cmd->control.es_fmt.p_es->p_es,
1482 p_cmd->control.es_fmt.p_fmt );
1484 case ES_OUT_SET_TIMES:
1485 return es_out_Control( p_out, i_query, p_cmd->control.times.f_position,
1486 p_cmd->control.times.i_time,
1487 p_cmd->control.times.i_length );
1488 case ES_OUT_SET_JITTER:
1489 return es_out_Control( p_out, i_query, p_cmd->control.jitter.i_pts_delay,
1490 p_cmd->control.jitter.i_cr_average );
1494 return VLC_EGENERIC;
1497 static void CmdCleanControl( ts_cmd_t *p_cmd )
1499 if( ( p_cmd->control.i_query == ES_OUT_SET_GROUP_META ||
1500 p_cmd->control.i_query == ES_OUT_SET_META ) &&
1501 p_cmd->control.int_meta.p_meta )
1503 vlc_meta_Delete( p_cmd->control.int_meta.p_meta );
1505 else if( p_cmd->control.i_query == ES_OUT_SET_GROUP_EPG &&
1506 p_cmd->control.int_epg.p_epg )
1508 vlc_epg_Delete( p_cmd->control.int_epg.p_epg );
1510 else if( p_cmd->control.i_query == ES_OUT_SET_ES_FMT &&
1511 p_cmd->control.es_fmt.p_fmt )
1513 es_format_Clean( p_cmd->control.es_fmt.p_fmt );
1514 free( p_cmd->control.es_fmt.p_fmt );
1519 /*****************************************************************************
1521 *****************************************************************************/
1522 static char *GetTmpPath( char *psz_path )
1524 if( psz_path && *psz_path )
1526 /* Make sure that the path exists and is a directory */
1528 const int i_ret = utf8_stat( psz_path, &s );
1530 if( i_ret < 0 && !utf8_mkdir( psz_path, 0600 ) )
1532 else if( i_ret == 0 && ( s.st_mode & S_IFDIR ) )
1537 /* Create a suitable path */
1538 #if defined (WIN32) && !defined (UNDER_CE)
1539 const DWORD dwCount = GetTempPathW( 0, NULL );
1540 wchar_t *psw_path = calloc( dwCount + 1, sizeof(wchar_t) );
1543 if( GetTempPathW( dwCount + 1, psw_path ) <= 0 )
1547 psw_path = _wgetcwd( NULL, 0 );
1554 psz_path = FromWide( psw_path );
1555 while( psz_path && *psz_path && psz_path[strlen( psz_path ) - 1] == '\\' )
1556 psz_path[strlen( psz_path ) - 1] = '\0';
1561 if( !psz_path || *psz_path == '\0' )
1564 return strdup( "C:" );
1567 psz_path = strdup( "/tmp" );
1573 static FILE *GetTmpFile( char **ppsz_file, const char *psz_path )
1581 if( asprintf( &psz_name, "%s/vlc-timeshift.XXXXXX", psz_path ) < 0 )
1585 fd = utf8_mkstemp( psz_name );
1586 *ppsz_file = psz_name;
1592 f = fdopen( fd, "w+b" );