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 * timeshift-granularity
313 p_sys->i_tmp_size_max = 50 * 1024*1024;
314 p_sys->psz_tmp_path = GetTmpPath( NULL );
319 /*****************************************************************************
321 *****************************************************************************/
322 static void Destroy( es_out_t *p_out )
324 es_out_sys_t *p_sys = p_out->p_sys;
326 if( p_sys->b_delayed )
328 TsStop( p_sys->p_thread );
329 p_sys->b_delayed = false;
332 while( p_sys->i_es > 0 )
333 Del( p_out, p_sys->pp_es[0] );
334 TAB_CLEAN( p_sys->i_es, p_sys->pp_es );
336 free( p_sys->psz_tmp_path );
337 vlc_mutex_destroy( &p_sys->lock );
342 static es_out_id_t *Add( es_out_t *p_out, const es_format_t *p_fmt )
344 es_out_sys_t *p_sys = p_out->p_sys;
347 es_out_id_t *p_es = malloc( sizeof( *p_es ) );
351 vlc_mutex_lock( &p_sys->lock );
355 if( CmdInitAdd( &cmd, p_es, p_fmt, p_sys->b_delayed ) )
357 vlc_mutex_unlock( &p_sys->lock );
362 TAB_APPEND( p_sys->i_es, p_sys->pp_es, p_es );
364 if( p_sys->b_delayed )
365 TsPushCmd( p_sys->p_thread, &cmd );
367 CmdExecuteAdd( p_sys->p_out, &cmd );
369 vlc_mutex_unlock( &p_sys->lock );
373 static int Send( es_out_t *p_out, es_out_id_t *p_es, block_t *p_block )
375 es_out_sys_t *p_sys = p_out->p_sys;
377 int i_ret = VLC_SUCCESS;
379 vlc_mutex_lock( &p_sys->lock );
383 CmdInitSend( &cmd, p_es, p_block );
384 if( p_sys->b_delayed )
385 TsPushCmd( p_sys->p_thread, &cmd );
387 i_ret = CmdExecuteSend( p_sys->p_out, &cmd) ;
389 vlc_mutex_unlock( &p_sys->lock );
393 static void Del( es_out_t *p_out, es_out_id_t *p_es )
395 es_out_sys_t *p_sys = p_out->p_sys;
398 vlc_mutex_lock( &p_sys->lock );
402 CmdInitDel( &cmd, p_es );
403 if( p_sys->b_delayed )
404 TsPushCmd( p_sys->p_thread, &cmd );
406 CmdExecuteDel( p_sys->p_out, &cmd );
408 TAB_REMOVE( p_sys->i_es, p_sys->pp_es, p_es );
410 vlc_mutex_unlock( &p_sys->lock );
413 static int ControlLockedGetEmpty( es_out_t *p_out, bool *pb_empty )
415 es_out_sys_t *p_sys = p_out->p_sys;
417 if( p_sys->b_delayed && TsHasCmd( p_sys->p_thread ) )
420 *pb_empty = es_out_GetEmpty( p_sys->p_out );
424 static int ControlLockedGetWakeup( es_out_t *p_out, mtime_t *pi_wakeup )
426 es_out_sys_t *p_sys = p_out->p_sys;
428 if( p_sys->b_delayed )
430 assert( !p_sys->p_input->b_can_pace_control );
435 *pi_wakeup = es_out_GetWakeup( p_sys->p_out );
440 static int ControlLockedGetBuffering( es_out_t *p_out, bool *pb_buffering )
442 es_out_sys_t *p_sys = p_out->p_sys;
444 if( p_sys->b_delayed )
445 *pb_buffering = true;
447 *pb_buffering = es_out_GetBuffering( p_sys->p_out );
451 static int ControlLockedSetPauseState( es_out_t *p_out, bool b_source_paused, bool b_paused, mtime_t i_date )
453 es_out_sys_t *p_sys = p_out->p_sys;
456 if( !p_sys->b_delayed && !b_source_paused == !b_paused )
458 i_ret = es_out_SetPauseState( p_sys->p_out, b_source_paused, b_paused, i_date );
462 i_ret = VLC_EGENERIC;
463 if( !p_sys->p_input->b_can_pace_control )
465 if( !p_sys->b_delayed )
467 if( p_sys->b_delayed )
468 i_ret = TsChangePause( p_sys->p_thread, b_source_paused, b_paused, i_date );
472 /* XXX we may do it BUT it would be better to finish the clock clean up+improvments
473 * and so be able to advertize correctly pace control property in access
475 msg_Err( p_sys->p_input, "EsOutTimeshift does not work with streams that have space control" );
481 p_sys->b_input_paused_source = b_source_paused;
482 p_sys->b_input_paused = b_paused;
486 static int ControlLockedSetRate( es_out_t *p_out, int i_src_rate, int i_rate )
488 es_out_sys_t *p_sys = p_out->p_sys;
491 if( !p_sys->b_delayed && i_src_rate == i_rate )
493 i_ret = es_out_SetRate( p_sys->p_out, i_src_rate, i_rate );
497 i_ret = VLC_EGENERIC;
498 if( !p_sys->p_input->b_can_pace_control )
500 if( !p_sys->b_delayed )
502 if( p_sys->b_delayed )
503 i_ret = TsChangeRate( p_sys->p_thread, i_src_rate, i_rate );
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" );
517 p_sys->i_input_rate_source = i_src_rate;
518 p_sys->i_input_rate = i_rate;
522 static int ControlLockedSetTime( es_out_t *p_out, mtime_t i_date )
524 es_out_sys_t *p_sys = p_out->p_sys;
526 if( !p_sys->b_delayed )
527 return es_out_SetTime( p_sys->p_out, i_date );
530 msg_Err( p_sys->p_input, "EsOutTimeshift does not yet support time change" );
533 static int ControlLockedSetFrameNext( es_out_t *p_out )
535 es_out_sys_t *p_sys = p_out->p_sys;
537 return es_out_SetFrameNext( p_sys->p_out );
540 static int ControlLocked( es_out_t *p_out, int i_query, va_list args )
542 es_out_sys_t *p_sys = p_out->p_sys;
546 /* Invalid query for this es_out level */
547 case ES_OUT_SET_ES_BY_ID:
548 case ES_OUT_RESTART_ES_BY_ID:
549 case ES_OUT_SET_ES_DEFAULT_BY_ID:
550 case ES_OUT_SET_DELAY:
551 case ES_OUT_SET_RECORD_STATE:
555 /* TODO ? or to remove ? */
559 /* Pass-through control */
560 case ES_OUT_SET_ACTIVE:
561 case ES_OUT_SET_MODE:
562 case ES_OUT_SET_GROUP:
564 case ES_OUT_SET_GROUP_PCR:
565 case ES_OUT_RESET_PCR:
566 case ES_OUT_SET_NEXT_DISPLAY_TIME:
567 case ES_OUT_SET_GROUP_META:
568 case ES_OUT_SET_GROUP_EPG:
569 case ES_OUT_DEL_GROUP:
571 case ES_OUT_RESTART_ES:
572 case ES_OUT_SET_ES_DEFAULT:
573 case ES_OUT_SET_ES_STATE:
574 case ES_OUT_SET_ES_FMT:
577 if( CmdInitControl( &cmd, i_query, args, p_sys->b_delayed ) )
579 if( p_sys->b_delayed )
581 TsPushCmd( p_sys->p_thread, &cmd );
584 return CmdExecuteControl( p_sys->p_out, &cmd );
587 /* Special control when delayed */
588 case ES_OUT_GET_ES_STATE:
590 es_out_id_t *p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
591 bool *pb_enabled = (bool*)va_arg( args, bool* );
593 if( p_sys->b_delayed )
598 return es_out_Control( p_sys->p_out, ES_OUT_GET_ES_STATE, p_es, pb_enabled );
601 /* Special internal input control */
602 case ES_OUT_GET_EMPTY:
604 bool *pb_empty = (bool*)va_arg( args, bool* );
605 return ControlLockedGetEmpty( p_out, pb_empty );
607 case ES_OUT_GET_WAKE_UP: /* TODO ? */
609 mtime_t *pi_wakeup = (mtime_t*)va_arg( args, mtime_t* );
610 return ControlLockedGetWakeup( p_out, pi_wakeup );
612 case ES_OUT_GET_BUFFERING:
614 bool *pb_buffering = (bool *)va_arg( args, bool* );
615 return ControlLockedGetBuffering( p_out, pb_buffering );
617 case ES_OUT_SET_PAUSE_STATE:
619 const bool b_source_paused = (bool)va_arg( args, int );
620 const bool b_paused = (bool)va_arg( args, int );
621 const mtime_t i_date = (mtime_t) va_arg( args, mtime_t );
623 return ControlLockedSetPauseState( p_out, b_source_paused, b_paused, i_date );
625 case ES_OUT_SET_RATE:
627 const int i_src_rate = (int)va_arg( args, int );
628 const int i_rate = (int)va_arg( args, int );
630 return ControlLockedSetRate( p_out, i_src_rate, i_rate );
632 case ES_OUT_SET_TIME:
634 const mtime_t i_date = (mtime_t)va_arg( args, mtime_t );
636 return ControlLockedSetTime( p_out, i_date );
638 case ES_OUT_SET_FRAME_NEXT:
640 return ControlLockedSetFrameNext( p_out );
644 msg_Err( p_sys->p_input, "Unknown es_out_Control query !" );
649 static int Control( es_out_t *p_out, int i_query, va_list args )
651 es_out_sys_t *p_sys = p_out->p_sys;
654 vlc_mutex_lock( &p_sys->lock );
658 i_ret = ControlLocked( p_out, i_query, args );
660 vlc_mutex_unlock( &p_sys->lock );
665 /*****************************************************************************
667 *****************************************************************************/
668 static void TsDestructor( vlc_object_t *p_this )
670 ts_thread_t *p_ts = (ts_thread_t*)p_this;
672 vlc_cond_destroy( &p_ts->wait );
673 vlc_mutex_destroy( &p_ts->lock );
675 static int TsStart( es_out_t *p_out )
677 es_out_sys_t *p_sys = p_out->p_sys;
680 assert( !p_sys->b_delayed );
682 p_sys->p_thread = p_ts = vlc_custom_create( p_sys->p_input, sizeof(ts_thread_t),
683 VLC_OBJECT_GENERIC, "es out timeshift" );
687 p_ts->i_tmp_size_max = p_sys->i_tmp_size_max;
688 p_ts->psz_tmp_path = p_sys->psz_tmp_path;
689 p_ts->p_input = p_sys->p_input;
690 p_ts->p_out = p_sys->p_out;
691 vlc_mutex_init( &p_ts->lock );
692 vlc_cond_init( &p_ts->wait );
693 p_ts->b_paused = p_sys->b_input_paused && !p_sys->b_input_paused_source;
694 p_ts->i_pause_date = p_ts->b_paused ? mdate() : -1;
695 p_ts->i_rate_source = p_sys->i_input_rate_source;
696 p_ts->i_rate = p_sys->i_input_rate;
697 p_ts->i_rate_date = -1;
698 p_ts->i_rate_delay = 0;
699 p_ts->i_buffering_delay = 0;
700 p_ts->i_cmd_delay = 0;
701 p_ts->p_storage_r = NULL;
702 p_ts->p_storage_w = NULL;
704 vlc_object_set_destructor( p_ts, TsDestructor );
706 p_sys->b_delayed = true;
707 if( vlc_thread_create( p_ts, "es out timeshift",
708 TsRun, VLC_THREAD_PRIORITY_INPUT, false ) )
710 msg_Err( p_sys->p_input, "cannot create input thread" );
712 vlc_object_release( p_ts );
714 p_sys->b_delayed = false;
720 static void TsAutoStop( es_out_t *p_out )
722 es_out_sys_t *p_sys = p_out->p_sys;
724 if( !p_sys->b_delayed || !TsIsUnused( p_sys->p_thread ) )
727 msg_Warn( p_sys->p_input, "es out timeshift: auto stop" );
728 TsStop( p_sys->p_thread );
730 p_sys->b_delayed = false;
732 static void TsStop( ts_thread_t *p_ts )
734 vlc_object_kill( p_ts );
735 vlc_thread_join( p_ts );
737 vlc_mutex_lock( &p_ts->lock );
742 if( TsPopCmdLocked( p_ts, &cmd ) )
747 assert( !p_ts->p_storage_r || !p_ts->p_storage_r->p_next );
748 if( p_ts->p_storage_r )
749 TsStorageDelete( p_ts->p_storage_r );
750 vlc_mutex_unlock( &p_ts->lock );
752 vlc_object_release( p_ts );
754 static void TsPushCmd( ts_thread_t *p_ts, ts_cmd_t *p_cmd )
756 vlc_mutex_lock( &p_ts->lock );
758 if( !p_ts->p_storage_w || TsStorageIsFull( p_ts->p_storage_w, p_cmd ) )
760 ts_storage_t *p_storage = TsStorageNew( p_ts->psz_tmp_path, p_ts->i_tmp_size_max );
765 vlc_mutex_unlock( &p_ts->lock );
766 /* TODO warn the user (but only once) */
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 /* TODO return error and warn the user (but only once) */
783 TsStoragePushCmd( p_ts->p_storage_w, p_cmd, p_ts->p_storage_r == p_ts->p_storage_w );
785 vlc_cond_signal( &p_ts->wait );
787 vlc_mutex_unlock( &p_ts->lock );
789 static int TsPopCmdLocked( ts_thread_t *p_ts, ts_cmd_t *p_cmd )
791 vlc_assert_locked( &p_ts->lock );
793 if( TsStorageIsEmpty( p_ts->p_storage_r ) )
796 TsStoragePopCmd( p_ts->p_storage_r, p_cmd );
798 while( p_ts->p_storage_r && TsStorageIsEmpty( p_ts->p_storage_r ) )
800 ts_storage_t *p_next = p_ts->p_storage_r->p_next;
804 TsStorageDelete( p_ts->p_storage_r );
805 p_ts->p_storage_r = p_next;
810 static bool TsHasCmd( ts_thread_t *p_ts )
814 vlc_mutex_lock( &p_ts->lock );
815 b_cmd = TsStorageIsEmpty( p_ts->p_storage_r );
816 vlc_mutex_unlock( &p_ts->lock );
820 static bool TsIsUnused( ts_thread_t *p_ts )
824 vlc_mutex_lock( &p_ts->lock );
825 b_unused = !p_ts->b_paused &&
826 p_ts->i_rate == p_ts->i_rate_source &&
827 TsStorageIsEmpty( p_ts->p_storage_r );
828 vlc_mutex_unlock( &p_ts->lock );
832 static int TsChangePause( ts_thread_t *p_ts, bool b_source_paused, bool b_paused, mtime_t i_date )
834 vlc_mutex_lock( &p_ts->lock );
839 assert( !b_source_paused );
840 i_ret = es_out_SetPauseState( p_ts->p_out, true, true, i_date );
844 i_ret = es_out_SetPauseState( p_ts->p_out, false, false, i_date );
851 assert( p_ts->i_pause_date > 0 );
853 p_ts->i_cmd_delay += i_date - p_ts->i_pause_date;
856 p_ts->b_paused = b_paused;
857 p_ts->i_pause_date = i_date;
859 vlc_cond_signal( &p_ts->wait );
861 vlc_mutex_unlock( &p_ts->lock );
864 static int TsChangeRate( ts_thread_t *p_ts, int i_src_rate, int i_rate )
868 vlc_mutex_lock( &p_ts->lock );
869 p_ts->i_cmd_delay += p_ts->i_rate_delay;
871 p_ts->i_rate_date = -1;
872 p_ts->i_rate_delay = 0;
873 p_ts->i_rate = i_rate;
874 p_ts->i_rate_source = i_src_rate;
876 i_ret = es_out_SetRate( p_ts->p_out, i_rate, i_rate );
877 vlc_mutex_unlock( &p_ts->lock );
882 static void *TsRun( vlc_object_t *p_thread )
884 ts_thread_t *p_ts = (ts_thread_t*)p_thread;
885 mtime_t i_buffering_date = -1;
893 /* Pop a command to execute */
894 vlc_mutex_lock( &p_ts->lock );
895 mutex_cleanup_push( &p_ts->lock );
899 const int canc = vlc_savecancel();
900 b_buffering = es_out_GetBuffering( p_ts->p_out );
902 if( ( !p_ts->b_paused || b_buffering ) && !TsPopCmdLocked( p_ts, &cmd ) )
904 vlc_restorecancel( canc );
907 vlc_restorecancel( canc );
909 vlc_cond_wait( &p_ts->wait, &p_ts->lock );
912 if( b_buffering && i_buffering_date < 0 )
914 i_buffering_date = cmd.i_date;
916 else if( i_buffering_date > 0 )
918 p_ts->i_buffering_delay += i_buffering_date - cmd.i_date; /* It is < 0 */
920 i_buffering_date = cmd.i_date;
922 i_buffering_date = -1;
925 if( p_ts->i_rate_date < 0 )
926 p_ts->i_rate_date = cmd.i_date;
928 p_ts->i_rate_delay = 0;
929 if( p_ts->i_rate_source != p_ts->i_rate )
931 const mtime_t i_duration = cmd.i_date - p_ts->i_rate_date;
932 p_ts->i_rate_delay = i_duration * p_ts->i_rate / p_ts->i_rate_source - i_duration;
934 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 )
936 const int canc = vlc_savecancel();
938 /* Auto reset to rate 1.0 */
939 msg_Warn( p_ts->p_input, "es out timeshift: auto reset rate to %d", p_ts->i_rate_source );
941 p_ts->i_cmd_delay = 0;
942 p_ts->i_buffering_delay = 0;
944 p_ts->i_rate_delay = 0;
945 p_ts->i_rate_date = -1;
946 p_ts->i_rate = p_ts->i_rate_source;
948 if( !es_out_SetRate( p_ts->p_out, p_ts->i_rate_source, p_ts->i_rate ) )
950 vlc_value_t val = { .i_int = p_ts->i_rate };
952 * FIXME it is perfectly safe BUT it is ugly as it may hide a
953 * rate change requested by user */
954 input_ControlPush( p_ts->p_input, INPUT_CONTROL_SET_RATE, &val );
957 vlc_restorecancel( canc );
959 i_deadline = cmd.i_date + p_ts->i_cmd_delay + p_ts->i_rate_delay + p_ts->i_buffering_delay;
963 /* Regulate the speed of command processing to the same one than
965 vlc_cleanup_push( cmd_cleanup_routine, &cmd );
971 /* Execute the command */
972 const int canc = vlc_savecancel();
976 CmdExecuteAdd( p_ts->p_out, &cmd );
980 CmdExecuteSend( p_ts->p_out, &cmd );
981 CmdCleanSend( &cmd );
984 CmdExecuteControl( p_ts->p_out, &cmd );
985 CmdCleanControl( &cmd );
988 CmdExecuteDel( p_ts->p_out, &cmd );
994 vlc_restorecancel( canc );
1000 /*****************************************************************************
1002 *****************************************************************************/
1003 static ts_storage_t *TsStorageNew( const char *psz_tmp_path, int64_t i_tmp_size_max )
1005 ts_storage_t *p_storage = calloc( 1, sizeof(ts_storage_t) );
1010 p_storage->p_next = NULL;
1013 p_storage->i_file_max = i_tmp_size_max;
1014 p_storage->i_file_size = 0;
1015 p_storage->p_filew = GetTmpFile( &p_storage->psz_file, psz_tmp_path );
1016 if( p_storage->psz_file )
1017 p_storage->p_filer = utf8_fopen( p_storage->psz_file, "rb" );
1020 p_storage->i_cmd_w = 0;
1021 p_storage->i_cmd_r = 0;
1022 p_storage->i_cmd_max = 30000;
1023 p_storage->p_cmd = malloc( p_storage->i_cmd_max * sizeof(*p_storage->p_cmd) );
1024 //fprintf( stderr, "\nSTORAGE name=%s size=%d kbytes\n", p_storage->psz_file, p_storage->i_cmd_max * sizeof(*p_storage->p_cmd) /1024 );
1026 if( !p_storage->p_cmd || !p_storage->p_filew || !p_storage->p_filer )
1028 TsStorageDelete( p_storage );
1033 static void TsStorageDelete( ts_storage_t *p_storage )
1035 while( p_storage->i_cmd_r < p_storage->i_cmd_w )
1039 TsStoragePopCmd( p_storage, &cmd );
1043 free( p_storage->p_cmd );
1045 if( p_storage->p_filer )
1046 fclose( p_storage->p_filer );
1047 if( p_storage->p_filew )
1048 fclose( p_storage->p_filew );
1050 if( p_storage->psz_file )
1052 utf8_unlink( p_storage->psz_file );
1053 free( p_storage->psz_file );
1058 static void TsStoragePack( ts_storage_t *p_storage )
1060 /* Try to release a bit of memory */
1061 if( p_storage->i_cmd_w >= p_storage->i_cmd_max )
1064 p_storage->i_cmd_max = __MAX( p_storage->i_cmd_w, 1 );
1066 ts_cmd_t *p_new = realloc( p_storage->p_cmd, p_storage->i_cmd_max * sizeof(*p_storage->p_cmd) );
1068 p_storage->p_cmd = p_new;
1070 static bool TsStorageIsFull( ts_storage_t *p_storage, const ts_cmd_t *p_cmd )
1072 if( p_cmd && p_cmd->i_type == C_SEND && p_storage->i_cmd_w > 0 )
1074 size_t i_size = sizeof(*p_cmd->send.p_block) + p_cmd->send.p_block->i_buffer;
1076 if( p_storage->i_file_size + i_size >= p_storage->i_file_max )
1079 return p_storage->i_cmd_w >= p_storage->i_cmd_max;
1081 static bool TsStorageIsEmpty( ts_storage_t *p_storage )
1083 return !p_storage || p_storage->i_cmd_r >= p_storage->i_cmd_w;
1085 static void TsStoragePushCmd( ts_storage_t *p_storage, const ts_cmd_t *p_cmd, bool b_flush )
1087 ts_cmd_t cmd = *p_cmd;
1089 assert( !TsStorageIsFull( p_storage, p_cmd ) );
1091 if( cmd.i_type == C_SEND )
1093 block_t *p_block = cmd.send.p_block;
1095 cmd.send.p_block = NULL;
1096 cmd.send.i_offset = ftell( p_storage->p_filew );
1098 if( fwrite( p_block, sizeof(*p_block), 1, p_storage->p_filew ) != 1 )
1100 block_Release( p_block );
1103 p_storage->i_file_size += sizeof(*p_block);
1104 if( p_block->i_buffer > 0 )
1106 if( fwrite( p_block->p_buffer, p_block->i_buffer, 1, p_storage->p_filew ) != 1 )
1108 block_Release( p_block );
1112 p_storage->i_file_size += p_block->i_buffer;
1113 block_Release( p_block );
1116 fflush( p_storage->p_filew );
1118 p_storage->p_cmd[p_storage->i_cmd_w++] = cmd;
1120 static void TsStoragePopCmd( ts_storage_t *p_storage, ts_cmd_t *p_cmd )
1122 assert( !TsStorageIsEmpty( p_storage ) );
1124 *p_cmd = p_storage->p_cmd[p_storage->i_cmd_r++];
1125 if( p_cmd->i_type == C_SEND )
1129 if( !fseek( p_storage->p_filer, p_cmd->send.i_offset, SEEK_SET ) &&
1130 fread( &block, sizeof(block), 1, p_storage->p_filer ) == 1 )
1132 block_t *p_block = block_Alloc( block.i_buffer );
1135 p_block->i_dts = block.i_dts;
1136 p_block->i_pts = block.i_pts;
1137 p_block->i_flags = block.i_flags;
1138 p_block->i_length = block.i_length;
1139 p_block->i_rate = block.i_rate;
1140 p_block->i_samples = block.i_samples;
1141 p_block->i_buffer = fread( p_block->p_buffer, 1, block.i_buffer, p_storage->p_filer );
1143 p_cmd->send.p_block = p_block;
1147 //fprintf( stderr, "TsStoragePopCmd: %m\n" );
1148 p_cmd->send.p_block = block_Alloc( 1 );
1153 /*****************************************************************************
1155 *****************************************************************************/
1156 static void CmdClean( ts_cmd_t *p_cmd )
1158 switch( p_cmd->i_type )
1161 CmdCleanAdd( p_cmd );
1164 CmdCleanSend( p_cmd );
1167 CmdCleanControl( p_cmd );
1177 static int CmdInitAdd( ts_cmd_t *p_cmd, es_out_id_t *p_es, const es_format_t *p_fmt, bool b_copy )
1179 p_cmd->i_type = C_ADD;
1180 p_cmd->i_date = mdate();
1181 p_cmd->add.p_es = p_es;
1184 p_cmd->add.p_fmt = malloc( sizeof(*p_fmt) );
1185 if( !p_cmd->add.p_fmt )
1186 return VLC_EGENERIC;
1187 es_format_Copy( p_cmd->add.p_fmt, p_fmt );
1191 p_cmd->add.p_fmt = (es_format_t*)p_fmt;
1195 static void CmdExecuteAdd( es_out_t *p_out, ts_cmd_t *p_cmd )
1197 p_cmd->add.p_es->p_es = es_out_Add( p_out, p_cmd->add.p_fmt );
1199 static void CmdCleanAdd( ts_cmd_t *p_cmd )
1201 es_format_Clean( p_cmd->add.p_fmt );
1202 free( p_cmd->add.p_fmt );
1205 static void CmdInitSend( ts_cmd_t *p_cmd, es_out_id_t *p_es, block_t *p_block )
1207 p_cmd->i_type = C_SEND;
1208 p_cmd->i_date = mdate();
1209 p_cmd->send.p_es = p_es;
1210 p_cmd->send.p_block = p_block;
1212 static int CmdExecuteSend( es_out_t *p_out, ts_cmd_t *p_cmd )
1214 block_t *p_block = p_cmd->send.p_block;
1216 p_cmd->send.p_block = NULL;
1220 if( p_cmd->send.p_es->p_es )
1221 return es_out_Send( p_out, p_cmd->send.p_es->p_es, p_block );
1222 block_Release( p_block );
1224 return VLC_EGENERIC;
1226 static void CmdCleanSend( ts_cmd_t *p_cmd )
1228 if( p_cmd->send.p_block )
1229 block_Release( p_cmd->send.p_block );
1232 static int CmdInitDel( ts_cmd_t *p_cmd, es_out_id_t *p_es )
1234 p_cmd->i_type = C_DEL;
1235 p_cmd->i_date = mdate();
1236 p_cmd->del.p_es = p_es;
1239 static void CmdExecuteDel( es_out_t *p_out, ts_cmd_t *p_cmd )
1241 if( p_cmd->del.p_es->p_es )
1242 es_out_Del( p_out, p_cmd->del.p_es->p_es );
1243 free( p_cmd->del.p_es );
1246 static int CmdInitControl( ts_cmd_t *p_cmd, int i_query, va_list args, bool b_copy )
1248 p_cmd->i_type = C_CONTROL;
1249 p_cmd->i_date = mdate();
1250 p_cmd->control.i_query = i_query;
1254 /* Pass-through control */
1255 case ES_OUT_SET_ACTIVE: /* arg1= bool */
1256 p_cmd->control.b_bool = (bool)va_arg( args, int );
1259 case ES_OUT_SET_MODE: /* arg1= int */
1260 case ES_OUT_SET_GROUP: /* arg1= int */
1261 case ES_OUT_DEL_GROUP: /* arg1=int i_group */
1262 p_cmd->control.i_int = (int)va_arg( args, int );
1265 case ES_OUT_SET_PCR: /* arg1=int64_t i_pcr(microsecond!) (using default group 0)*/
1266 case ES_OUT_SET_NEXT_DISPLAY_TIME: /* arg1=int64_t i_pts(microsecond) */
1267 p_cmd->control.i_i64 = (int64_t)va_arg( args, int64_t );
1270 case ES_OUT_SET_GROUP_PCR: /* arg1= int i_group, arg2=int64_t i_pcr(microsecond!)*/
1271 p_cmd->control.int_i64.i_int = (int)va_arg( args, int );
1272 p_cmd->control.int_i64.i_i64 = (int64_t)va_arg( args, int64_t );
1275 case ES_OUT_RESET_PCR: /* no arg */
1278 case ES_OUT_SET_GROUP_META: /* arg1=int i_group arg2=vlc_meta_t* */
1280 p_cmd->control.int_meta.i_int = (int)va_arg( args, int );
1281 vlc_meta_t *p_meta = (vlc_meta_t*)va_arg( args, vlc_meta_t * );
1285 p_cmd->control.int_meta.p_meta = vlc_meta_New();
1286 if( !p_cmd->control.int_meta.p_meta )
1287 return VLC_EGENERIC;
1288 vlc_meta_Merge( p_cmd->control.int_meta.p_meta, p_meta );
1292 p_cmd->control.int_meta.p_meta = p_meta;
1297 case ES_OUT_SET_GROUP_EPG: /* arg1=int i_group arg2=vlc_epg_t* */
1299 p_cmd->control.int_epg.i_int = (int)va_arg( args, int );
1300 vlc_epg_t *p_epg = (vlc_epg_t*)va_arg( args, vlc_epg_t * );
1304 p_cmd->control.int_epg.p_epg = vlc_epg_New( p_epg->psz_name );
1305 if( !p_cmd->control.int_epg.p_epg )
1306 return VLC_EGENERIC;
1307 for( int i = 0; i < p_epg->i_event; i++ )
1309 vlc_epg_event_t *p_evt = p_epg->pp_event[i];
1311 vlc_epg_AddEvent( p_cmd->control.int_epg.p_epg,
1312 p_evt->i_start, p_evt->i_duration,
1314 p_evt->psz_short_description, p_evt->psz_description );
1316 vlc_epg_SetCurrent( p_cmd->control.int_epg.p_epg,
1317 p_epg->p_current ? p_epg->p_current->i_start : -1 );
1321 p_cmd->control.int_epg.p_epg = p_epg;
1326 /* Modified control */
1327 case ES_OUT_SET_ES: /* arg1= es_out_id_t* */
1328 case ES_OUT_RESTART_ES: /* arg1= es_out_id_t* */
1329 case ES_OUT_SET_ES_DEFAULT: /* arg1= es_out_id_t* */
1330 p_cmd->control.p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
1333 case ES_OUT_SET_ES_STATE:/* arg1= es_out_id_t* arg2=bool */
1334 p_cmd->control.es_bool.p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
1335 p_cmd->control.es_bool.b_bool = (bool)va_arg( args, int );
1338 case ES_OUT_SET_ES_FMT: /* arg1= es_out_id_t* arg2=es_format_t* */
1340 p_cmd->control.es_fmt.p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
1341 es_format_t *p_fmt = (es_format_t*)va_arg( args, es_format_t * );
1345 p_cmd->control.es_fmt.p_fmt = malloc( sizeof(*p_fmt) );
1346 if( !p_cmd->control.es_fmt.p_fmt )
1347 return VLC_EGENERIC;
1348 es_format_Copy( p_cmd->control.es_fmt.p_fmt, p_fmt );
1352 p_cmd->control.es_fmt.p_fmt = p_fmt;
1359 return VLC_EGENERIC;
1364 static int CmdExecuteControl( es_out_t *p_out, ts_cmd_t *p_cmd )
1366 const int i_query = p_cmd->control.i_query;
1370 /* Pass-through control */
1371 case ES_OUT_SET_ACTIVE: /* arg1= bool */
1372 return es_out_Control( p_out, i_query, p_cmd->control.b_bool );
1374 case ES_OUT_SET_MODE: /* arg1= int */
1375 case ES_OUT_SET_GROUP: /* arg1= int */
1376 case ES_OUT_DEL_GROUP: /* arg1=int i_group */
1377 return es_out_Control( p_out, i_query, p_cmd->control.i_int );
1379 case ES_OUT_SET_PCR: /* arg1=int64_t i_pcr(microsecond!) (using default group 0)*/
1380 case ES_OUT_SET_NEXT_DISPLAY_TIME: /* arg1=int64_t i_pts(microsecond) */
1381 return es_out_Control( p_out, i_query, p_cmd->control.i_i64 );
1383 case ES_OUT_SET_GROUP_PCR: /* arg1= int i_group, arg2=int64_t i_pcr(microsecond!)*/
1384 return es_out_Control( p_out, i_query, p_cmd->control.int_i64.i_int, p_cmd->control.int_i64.i_i64 );
1386 case ES_OUT_RESET_PCR: /* no arg */
1387 return es_out_Control( p_out, i_query );
1389 case ES_OUT_SET_GROUP_META: /* arg1=int i_group arg2=vlc_meta_t* */
1390 return es_out_Control( p_out, i_query, p_cmd->control.int_meta.i_int, p_cmd->control.int_meta.p_meta );
1392 case ES_OUT_SET_GROUP_EPG: /* arg1=int i_group arg2=vlc_epg_t* */
1393 return es_out_Control( p_out, i_query, p_cmd->control.int_epg.i_int, p_cmd->control.int_epg.p_epg );
1395 /* Modified control */
1396 case ES_OUT_SET_ES: /* arg1= es_out_id_t* */
1397 case ES_OUT_RESTART_ES: /* arg1= es_out_id_t* */
1398 case ES_OUT_SET_ES_DEFAULT: /* arg1= es_out_id_t* */
1399 return es_out_Control( p_out, i_query, p_cmd->control.p_es->p_es );
1401 case ES_OUT_SET_ES_STATE:/* arg1= es_out_id_t* arg2=bool */
1402 return es_out_Control( p_out, i_query, p_cmd->control.es_bool.p_es->p_es, p_cmd->control.es_bool.b_bool );
1404 case ES_OUT_SET_ES_FMT: /* arg1= es_out_id_t* arg2=es_format_t* */
1405 return es_out_Control( p_out, i_query, p_cmd->control.es_fmt.p_es->p_es, p_cmd->control.es_fmt.p_fmt );
1409 return VLC_EGENERIC;
1412 static void CmdCleanControl( ts_cmd_t *p_cmd )
1414 if( p_cmd->control.i_query == ES_OUT_SET_GROUP_META &&
1415 p_cmd->control.int_meta.p_meta )
1417 vlc_meta_Delete( p_cmd->control.int_meta.p_meta );
1419 else if( p_cmd->control.i_query == ES_OUT_SET_GROUP_EPG &&
1420 p_cmd->control.int_epg.p_epg )
1422 vlc_epg_Delete( p_cmd->control.int_epg.p_epg );
1424 else if( p_cmd->control.i_query == ES_OUT_SET_ES_FMT &&
1425 p_cmd->control.es_fmt.p_fmt )
1427 es_format_Clean( p_cmd->control.es_fmt.p_fmt );
1428 free( p_cmd->control.es_fmt.p_fmt );
1433 /*****************************************************************************
1435 *****************************************************************************/
1436 static char *GetTmpPath( char *psz_path )
1438 if( psz_path && *psz_path )
1440 /* Make sure that the path exists and is a directory */
1442 const int i_ret = utf8_stat( psz_path, &s );
1444 if( i_ret < 0 && !utf8_mkdir( psz_path, 0600 ) )
1446 else if( i_ret == 0 && ( s.st_mode & S_IFDIR ) )
1451 /* Create a suitable path */
1452 #if defined (WIN32) && !defined (UNDER_CE)
1453 const DWORD dwCount = GetTempPathW( 0, NULL );
1454 wchar_t *psw_path = calloc( dwCount + 1, sizeof(wchar_t) );
1457 if( GetTempPathW( dwCount + 1, psw_path ) <= 0 )
1461 psw_path = _wgetcwd( NULL, 0 );
1468 psz_path = FromWide( psw_path );
1469 while( psz_path && *psz_path && psz_path[strlen( psz_path ) - 1] == '\\' )
1470 psz_path[strlen( psz_path ) - 1] = '\0';
1475 if( !psz_path || *psz_path == '\0' )
1478 return strdup( "C:" );
1481 psz_path = strdup( "/tmp" );
1487 static FILE *GetTmpFile( char **ppsz_file, const char *psz_path )
1495 if( asprintf( &psz_name, "%s/vlc-timeshift.XXXXXX", psz_path ) < 0 )
1499 fd = mkstemp( psz_name );
1500 *ppsz_file = psz_name;
1506 f = fdopen( fd, "rw+" );