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 *****************************************************************************/
34 #if defined (WIN32) && !defined (UNDER_CE)
37 #ifdef HAVE_SYS_STAT_H
38 # include <sys/stat.h>
41 #include <vlc_common.h>
42 #include <vlc_charset.h>
44 #include <vlc_input.h>
45 #include <vlc_es_out.h>
46 #include <vlc_block.h>
47 #include "input_internal.h"
49 #include "es_out_timeshift.h"
51 /*****************************************************************************
53 *****************************************************************************/
55 /* XXX attribute_packed is (and MUST be) used ONLY to reduce memory usage */
56 #ifdef HAVE_ATTRIBUTE_PACKED
57 # define attribute_packed __attribute__((__packed__))
59 # define attribute_packed
70 typedef struct attribute_packed
76 typedef struct attribute_packed
81 typedef struct attribute_packed
85 int i_offset; /* We do not use file > INT_MAX */
88 typedef struct attribute_packed
125 /* FIXME Really too big (double make the whole thing too big) */
138 typedef struct attribute_packed
147 ts_cmd_control_t control;
151 typedef struct ts_storage_t ts_storage_t;
154 ts_storage_t *p_next;
157 char *psz_file; /* Filename */
158 size_t i_file_max; /* Max size in bytes */
159 int64_t i_file_size;/* Current size in bytes */
160 FILE *p_filew; /* FILE handle for data writing */
161 FILE *p_filer; /* FILE handle for data reading */
175 input_thread_t *p_input;
177 int64_t i_tmp_size_max;
178 const char *psz_tmp_path;
180 /* Lock for all following fields */
186 mtime_t i_pause_date;
192 mtime_t i_rate_delay;
195 mtime_t i_buffering_delay;
198 ts_storage_t *p_storage_r;
199 ts_storage_t *p_storage_w;
212 input_thread_t *p_input;
216 int64_t i_tmp_size_max; /* Maximal temporary file size in byte */
217 char *psz_tmp_path; /* Path for temporary files */
219 /* Lock for all following fields */
224 ts_thread_t *p_thread;
228 bool b_input_paused_source;
230 int i_input_rate_source;
237 static es_out_id_t *Add ( es_out_t *, const es_format_t * );
238 static int Send ( es_out_t *, es_out_id_t *, block_t * );
239 static void Del ( es_out_t *, es_out_id_t * );
240 static int Control( es_out_t *, int i_query, va_list );
241 static void Destroy( es_out_t * );
243 static int TsStart( es_out_t * );
244 static void TsAutoStop( es_out_t * );
246 static void TsStop( ts_thread_t * );
247 static void TsPushCmd( ts_thread_t *, ts_cmd_t * );
248 static int TsPopCmdLocked( ts_thread_t *, ts_cmd_t *, bool b_flush );
249 static bool TsHasCmd( ts_thread_t * );
250 static bool TsIsUnused( ts_thread_t * );
251 static int TsChangePause( ts_thread_t *, bool b_source_paused, bool b_paused, mtime_t i_date );
252 static int TsChangeRate( ts_thread_t *, int i_src_rate, int i_rate );
254 static void *TsRun( vlc_object_t * );
256 static ts_storage_t *TsStorageNew( const char *psz_path, int64_t i_tmp_size_max );
257 static void TsStorageDelete( ts_storage_t * );
258 static void TsStoragePack( ts_storage_t *p_storage );
259 static bool TsStorageIsFull( ts_storage_t *, const ts_cmd_t *p_cmd );
260 static bool TsStorageIsEmpty( ts_storage_t * );
261 static void TsStoragePushCmd( ts_storage_t *, const ts_cmd_t *p_cmd, bool b_flush );
262 static void TsStoragePopCmd( ts_storage_t *p_storage, ts_cmd_t *p_cmd, bool b_flush );
264 static void CmdClean( ts_cmd_t * );
265 static void cmd_cleanup_routine( void *p ) { CmdClean( p ); }
267 static int CmdInitAdd ( ts_cmd_t *, es_out_id_t *, const es_format_t *, bool b_copy );
268 static void CmdInitSend ( ts_cmd_t *, es_out_id_t *, block_t * );
269 static int CmdInitDel ( ts_cmd_t *, es_out_id_t * );
270 static int CmdInitControl( ts_cmd_t *, int i_query, va_list, bool b_copy );
273 static void CmdCleanAdd ( ts_cmd_t * );
274 static void CmdCleanSend ( ts_cmd_t * );
275 static void CmdCleanControl( ts_cmd_t *p_cmd );
277 /* XXX these functions will take the destination es_out_t */
278 static void CmdExecuteAdd ( es_out_t *, ts_cmd_t * );
279 static int CmdExecuteSend ( es_out_t *, ts_cmd_t * );
280 static void CmdExecuteDel ( es_out_t *, ts_cmd_t * );
281 static int CmdExecuteControl( es_out_t *, ts_cmd_t * );
284 static char *GetTmpPath( char *psz_path );
285 static FILE *GetTmpFile( char **ppsz_file, const char *psz_path );
287 /*****************************************************************************
288 * input_EsOutTimeshiftNew:
289 *****************************************************************************/
290 es_out_t *input_EsOutTimeshiftNew( input_thread_t *p_input, es_out_t *p_next_out, int i_rate )
292 es_out_t *p_out = malloc( sizeof(*p_out) );
296 es_out_sys_t *p_sys = malloc( sizeof(*p_sys) );
305 p_out->pf_send = Send;
307 p_out->pf_control = Control;
308 p_out->pf_destroy = Destroy;
309 p_out->p_sys = p_sys;
310 p_out->b_sout = p_input->p->p_sout != NULL;
313 p_sys->b_input_paused = false;
314 p_sys->b_input_paused_source = false;
315 p_sys->p_input = p_input;
316 p_sys->i_input_rate = i_rate;
317 p_sys->i_input_rate_source = i_rate;
319 p_sys->p_out = p_next_out;
320 vlc_mutex_init_recursive( &p_sys->lock );
322 p_sys->b_delayed = false;
323 p_sys->p_thread = NULL;
325 TAB_INIT( p_sys->i_es, p_sys->pp_es );
328 const int i_tmp_size_max = var_CreateGetInteger( p_input, "input-timeshift-granularity" );
329 if( i_tmp_size_max < 0 )
330 p_sys->i_tmp_size_max = 50*1024*1024;
332 p_sys->i_tmp_size_max = __MAX( i_tmp_size_max, 1*1024*1024 );
333 msg_Dbg( p_input, "using timeshift granularity of %d MBytes",
334 (int)p_sys->i_tmp_size_max/(1024*1024) );
336 char *psz_tmp_path = var_CreateGetNonEmptyString( p_input, "input-timeshift-path" );
337 p_sys->psz_tmp_path = GetTmpPath( psz_tmp_path );
338 msg_Dbg( p_input, "using timeshift path '%s'", p_sys->psz_tmp_path );
341 #define S(t) msg_Err( p_input, "SIZEOF("#t")=%d", sizeof(t) )
353 /*****************************************************************************
355 *****************************************************************************/
356 static void Destroy( es_out_t *p_out )
358 es_out_sys_t *p_sys = p_out->p_sys;
360 if( p_sys->b_delayed )
362 TsStop( p_sys->p_thread );
363 p_sys->b_delayed = false;
366 while( p_sys->i_es > 0 )
367 Del( p_out, p_sys->pp_es[0] );
368 TAB_CLEAN( p_sys->i_es, p_sys->pp_es );
370 free( p_sys->psz_tmp_path );
371 vlc_mutex_destroy( &p_sys->lock );
376 static es_out_id_t *Add( es_out_t *p_out, const es_format_t *p_fmt )
378 es_out_sys_t *p_sys = p_out->p_sys;
381 es_out_id_t *p_es = malloc( sizeof( *p_es ) );
385 vlc_mutex_lock( &p_sys->lock );
389 if( CmdInitAdd( &cmd, p_es, p_fmt, p_sys->b_delayed ) )
391 vlc_mutex_unlock( &p_sys->lock );
396 TAB_APPEND( p_sys->i_es, p_sys->pp_es, p_es );
398 if( p_sys->b_delayed )
399 TsPushCmd( p_sys->p_thread, &cmd );
401 CmdExecuteAdd( p_sys->p_out, &cmd );
403 vlc_mutex_unlock( &p_sys->lock );
407 static int Send( es_out_t *p_out, es_out_id_t *p_es, block_t *p_block )
409 es_out_sys_t *p_sys = p_out->p_sys;
411 int i_ret = VLC_SUCCESS;
413 vlc_mutex_lock( &p_sys->lock );
417 CmdInitSend( &cmd, p_es, p_block );
418 if( p_sys->b_delayed )
419 TsPushCmd( p_sys->p_thread, &cmd );
421 i_ret = CmdExecuteSend( p_sys->p_out, &cmd) ;
423 vlc_mutex_unlock( &p_sys->lock );
427 static void Del( es_out_t *p_out, es_out_id_t *p_es )
429 es_out_sys_t *p_sys = p_out->p_sys;
432 vlc_mutex_lock( &p_sys->lock );
436 CmdInitDel( &cmd, p_es );
437 if( p_sys->b_delayed )
438 TsPushCmd( p_sys->p_thread, &cmd );
440 CmdExecuteDel( p_sys->p_out, &cmd );
442 TAB_REMOVE( p_sys->i_es, p_sys->pp_es, p_es );
444 vlc_mutex_unlock( &p_sys->lock );
447 static int ControlLockedGetEmpty( es_out_t *p_out, bool *pb_empty )
449 es_out_sys_t *p_sys = p_out->p_sys;
451 if( p_sys->b_delayed && TsHasCmd( p_sys->p_thread ) )
454 *pb_empty = es_out_GetEmpty( p_sys->p_out );
458 static int ControlLockedGetWakeup( es_out_t *p_out, mtime_t *pi_wakeup )
460 es_out_sys_t *p_sys = p_out->p_sys;
462 if( p_sys->b_delayed )
464 assert( !p_sys->p_input->p->b_can_pace_control );
469 *pi_wakeup = es_out_GetWakeup( p_sys->p_out );
474 static int ControlLockedGetBuffering( es_out_t *p_out, bool *pb_buffering )
476 es_out_sys_t *p_sys = p_out->p_sys;
478 if( p_sys->b_delayed )
479 *pb_buffering = true;
481 *pb_buffering = es_out_GetBuffering( p_sys->p_out );
485 static int ControlLockedSetPauseState( es_out_t *p_out, bool b_source_paused, bool b_paused, mtime_t i_date )
487 es_out_sys_t *p_sys = p_out->p_sys;
490 if( !p_sys->b_delayed && !b_source_paused == !b_paused )
492 i_ret = es_out_SetPauseState( p_sys->p_out, b_source_paused, b_paused, i_date );
496 i_ret = VLC_EGENERIC;
497 if( !p_sys->p_input->p->b_can_pace_control )
499 if( !p_sys->b_delayed )
501 if( p_sys->b_delayed )
502 i_ret = TsChangePause( p_sys->p_thread, b_source_paused, b_paused, i_date );
506 /* XXX we may do it BUT it would be better to finish the clock clean up+improvments
507 * and so be able to advertize correctly pace control property in access
509 msg_Err( p_sys->p_input, "EsOutTimeshift does not work with streams that have space control" );
515 p_sys->b_input_paused_source = b_source_paused;
516 p_sys->b_input_paused = b_paused;
520 static int ControlLockedSetRate( es_out_t *p_out, int i_src_rate, int i_rate )
522 es_out_sys_t *p_sys = p_out->p_sys;
525 if( !p_sys->b_delayed && i_src_rate == i_rate )
527 i_ret = es_out_SetRate( p_sys->p_out, i_src_rate, i_rate );
531 i_ret = VLC_EGENERIC;
532 if( !p_sys->p_input->p->b_can_pace_control )
534 if( !p_sys->b_delayed )
536 if( p_sys->b_delayed )
537 i_ret = TsChangeRate( p_sys->p_thread, i_src_rate, i_rate );
541 /* XXX we may do it BUT it would be better to finish the clock clean up+improvments
542 * and so be able to advertize correctly pace control property in access
544 msg_Err( p_sys->p_input, "EsOutTimeshift does not work with streams that have space control" );
551 p_sys->i_input_rate_source = i_src_rate;
552 p_sys->i_input_rate = i_rate;
556 static int ControlLockedSetTime( es_out_t *p_out, mtime_t i_date )
558 es_out_sys_t *p_sys = p_out->p_sys;
560 if( !p_sys->b_delayed )
561 return es_out_SetTime( p_sys->p_out, i_date );
564 msg_Err( p_sys->p_input, "EsOutTimeshift does not yet support time change" );
567 static int ControlLockedSetFrameNext( es_out_t *p_out )
569 es_out_sys_t *p_sys = p_out->p_sys;
571 return es_out_SetFrameNext( p_sys->p_out );
574 static int ControlLocked( es_out_t *p_out, int i_query, va_list args )
576 es_out_sys_t *p_sys = p_out->p_sys;
580 /* Invalid query for this es_out level */
581 case ES_OUT_SET_ES_BY_ID:
582 case ES_OUT_RESTART_ES_BY_ID:
583 case ES_OUT_SET_ES_DEFAULT_BY_ID:
584 case ES_OUT_SET_DELAY:
585 case ES_OUT_SET_RECORD_STATE:
589 /* Pass-through control */
590 case ES_OUT_SET_ACTIVE:
591 case ES_OUT_SET_MODE:
592 case ES_OUT_SET_GROUP:
594 case ES_OUT_SET_GROUP_PCR:
595 case ES_OUT_RESET_PCR:
596 case ES_OUT_SET_NEXT_DISPLAY_TIME:
597 case ES_OUT_SET_GROUP_META:
598 case ES_OUT_SET_GROUP_EPG:
599 case ES_OUT_SET_ES_SCRAMBLED_STATE:
600 case ES_OUT_DEL_GROUP:
601 case ES_OUT_SET_META:
603 case ES_OUT_RESTART_ES:
604 case ES_OUT_SET_ES_DEFAULT:
605 case ES_OUT_SET_ES_STATE:
606 case ES_OUT_SET_ES_FMT:
607 case ES_OUT_SET_TIMES:
608 case ES_OUT_SET_JITTER:
611 if( CmdInitControl( &cmd, i_query, args, p_sys->b_delayed ) )
613 if( p_sys->b_delayed )
615 TsPushCmd( p_sys->p_thread, &cmd );
618 return CmdExecuteControl( p_sys->p_out, &cmd );
621 /* Special control when delayed */
622 case ES_OUT_GET_ES_STATE:
624 es_out_id_t *p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
625 bool *pb_enabled = (bool*)va_arg( args, bool* );
627 if( p_sys->b_delayed )
632 return es_out_Control( p_sys->p_out, ES_OUT_GET_ES_STATE, p_es->p_es, pb_enabled );
635 /* Special internal input control */
636 case ES_OUT_GET_EMPTY:
638 bool *pb_empty = (bool*)va_arg( args, bool* );
639 return ControlLockedGetEmpty( p_out, pb_empty );
641 case ES_OUT_GET_WAKE_UP: /* TODO ? */
643 mtime_t *pi_wakeup = (mtime_t*)va_arg( args, mtime_t* );
644 return ControlLockedGetWakeup( p_out, pi_wakeup );
646 case ES_OUT_GET_BUFFERING:
648 bool *pb_buffering = (bool *)va_arg( args, bool* );
649 return ControlLockedGetBuffering( p_out, pb_buffering );
651 case ES_OUT_SET_PAUSE_STATE:
653 const bool b_source_paused = (bool)va_arg( args, int );
654 const bool b_paused = (bool)va_arg( args, int );
655 const mtime_t i_date = (mtime_t) va_arg( args, mtime_t );
657 return ControlLockedSetPauseState( p_out, b_source_paused, b_paused, i_date );
659 case ES_OUT_SET_RATE:
661 const int i_src_rate = (int)va_arg( args, int );
662 const int i_rate = (int)va_arg( args, int );
664 return ControlLockedSetRate( p_out, i_src_rate, i_rate );
666 case ES_OUT_SET_TIME:
668 const mtime_t i_date = (mtime_t)va_arg( args, mtime_t );
670 return ControlLockedSetTime( p_out, i_date );
672 case ES_OUT_SET_FRAME_NEXT:
674 return ControlLockedSetFrameNext( p_out );
678 msg_Err( p_sys->p_input, "Unknown es_out_Control query !" );
683 static int Control( es_out_t *p_out, int i_query, va_list args )
685 es_out_sys_t *p_sys = p_out->p_sys;
688 vlc_mutex_lock( &p_sys->lock );
692 i_ret = ControlLocked( p_out, i_query, args );
694 vlc_mutex_unlock( &p_sys->lock );
699 /*****************************************************************************
701 *****************************************************************************/
702 static void TsDestructor( vlc_object_t *p_this )
704 ts_thread_t *p_ts = (ts_thread_t*)p_this;
706 vlc_cond_destroy( &p_ts->wait );
707 vlc_mutex_destroy( &p_ts->lock );
709 static int TsStart( es_out_t *p_out )
711 es_out_sys_t *p_sys = p_out->p_sys;
714 assert( !p_sys->b_delayed );
716 p_sys->p_thread = p_ts = vlc_custom_create( p_sys->p_input, sizeof(ts_thread_t),
717 VLC_OBJECT_GENERIC, "es out timeshift" );
721 p_ts->i_tmp_size_max = p_sys->i_tmp_size_max;
722 p_ts->psz_tmp_path = p_sys->psz_tmp_path;
723 p_ts->p_input = p_sys->p_input;
724 p_ts->p_out = p_sys->p_out;
725 vlc_mutex_init( &p_ts->lock );
726 vlc_cond_init( &p_ts->wait );
727 p_ts->b_paused = p_sys->b_input_paused && !p_sys->b_input_paused_source;
728 p_ts->i_pause_date = p_ts->b_paused ? mdate() : -1;
729 p_ts->i_rate_source = p_sys->i_input_rate_source;
730 p_ts->i_rate = p_sys->i_input_rate;
731 p_ts->i_rate_date = -1;
732 p_ts->i_rate_delay = 0;
733 p_ts->i_buffering_delay = 0;
734 p_ts->i_cmd_delay = 0;
735 p_ts->p_storage_r = NULL;
736 p_ts->p_storage_w = NULL;
738 vlc_object_set_destructor( p_ts, TsDestructor );
740 p_sys->b_delayed = true;
741 if( vlc_thread_create( p_ts, "es out timeshift",
742 TsRun, VLC_THREAD_PRIORITY_INPUT ) )
744 msg_Err( p_sys->p_input, "cannot create input thread" );
746 vlc_object_release( p_ts );
748 p_sys->b_delayed = false;
754 static void TsAutoStop( es_out_t *p_out )
756 es_out_sys_t *p_sys = p_out->p_sys;
758 if( !p_sys->b_delayed || !TsIsUnused( p_sys->p_thread ) )
761 msg_Warn( p_sys->p_input, "es out timeshift: auto stop" );
762 TsStop( p_sys->p_thread );
764 p_sys->b_delayed = false;
766 static void TsStop( ts_thread_t *p_ts )
768 vlc_object_kill( p_ts );
769 vlc_thread_join( p_ts );
771 vlc_mutex_lock( &p_ts->lock );
776 if( TsPopCmdLocked( p_ts, &cmd, true ) )
781 assert( !p_ts->p_storage_r || !p_ts->p_storage_r->p_next );
782 if( p_ts->p_storage_r )
783 TsStorageDelete( p_ts->p_storage_r );
784 vlc_mutex_unlock( &p_ts->lock );
786 vlc_object_release( p_ts );
788 static void TsPushCmd( ts_thread_t *p_ts, ts_cmd_t *p_cmd )
790 vlc_mutex_lock( &p_ts->lock );
792 if( !p_ts->p_storage_w || TsStorageIsFull( p_ts->p_storage_w, p_cmd ) )
794 ts_storage_t *p_storage = TsStorageNew( p_ts->psz_tmp_path, p_ts->i_tmp_size_max );
799 vlc_mutex_unlock( &p_ts->lock );
800 /* TODO warn the user (but only once) */
804 if( !p_ts->p_storage_w )
806 p_ts->p_storage_r = p_ts->p_storage_w = p_storage;
810 TsStoragePack( p_ts->p_storage_w );
811 p_ts->p_storage_w->p_next = p_storage;
812 p_ts->p_storage_w = p_storage;
816 /* TODO return error and warn the user (but only once) */
817 TsStoragePushCmd( p_ts->p_storage_w, p_cmd, p_ts->p_storage_r == p_ts->p_storage_w );
819 vlc_cond_signal( &p_ts->wait );
821 vlc_mutex_unlock( &p_ts->lock );
823 static int TsPopCmdLocked( ts_thread_t *p_ts, ts_cmd_t *p_cmd, bool b_flush )
825 vlc_assert_locked( &p_ts->lock );
827 if( TsStorageIsEmpty( p_ts->p_storage_r ) )
830 TsStoragePopCmd( p_ts->p_storage_r, p_cmd, b_flush );
832 while( p_ts->p_storage_r && TsStorageIsEmpty( p_ts->p_storage_r ) )
834 ts_storage_t *p_next = p_ts->p_storage_r->p_next;
838 TsStorageDelete( p_ts->p_storage_r );
839 p_ts->p_storage_r = p_next;
844 static bool TsHasCmd( ts_thread_t *p_ts )
848 vlc_mutex_lock( &p_ts->lock );
849 b_cmd = TsStorageIsEmpty( p_ts->p_storage_r );
850 vlc_mutex_unlock( &p_ts->lock );
854 static bool TsIsUnused( ts_thread_t *p_ts )
858 vlc_mutex_lock( &p_ts->lock );
859 b_unused = !p_ts->b_paused &&
860 p_ts->i_rate == p_ts->i_rate_source &&
861 TsStorageIsEmpty( p_ts->p_storage_r );
862 vlc_mutex_unlock( &p_ts->lock );
866 static int TsChangePause( ts_thread_t *p_ts, bool b_source_paused, bool b_paused, mtime_t i_date )
868 vlc_mutex_lock( &p_ts->lock );
873 assert( !b_source_paused );
874 i_ret = es_out_SetPauseState( p_ts->p_out, true, true, i_date );
878 i_ret = es_out_SetPauseState( p_ts->p_out, false, false, i_date );
885 assert( p_ts->i_pause_date > 0 );
887 p_ts->i_cmd_delay += i_date - p_ts->i_pause_date;
890 p_ts->b_paused = b_paused;
891 p_ts->i_pause_date = i_date;
893 vlc_cond_signal( &p_ts->wait );
895 vlc_mutex_unlock( &p_ts->lock );
898 static int TsChangeRate( ts_thread_t *p_ts, int i_src_rate, int i_rate )
902 vlc_mutex_lock( &p_ts->lock );
903 p_ts->i_cmd_delay += p_ts->i_rate_delay;
905 p_ts->i_rate_date = -1;
906 p_ts->i_rate_delay = 0;
907 p_ts->i_rate = i_rate;
908 p_ts->i_rate_source = i_src_rate;
910 i_ret = es_out_SetRate( p_ts->p_out, i_rate, i_rate );
911 vlc_mutex_unlock( &p_ts->lock );
916 static void *TsRun( vlc_object_t *p_thread )
918 ts_thread_t *p_ts = (ts_thread_t*)p_thread;
919 mtime_t i_buffering_date = -1;
927 /* Pop a command to execute */
928 vlc_mutex_lock( &p_ts->lock );
929 mutex_cleanup_push( &p_ts->lock );
933 const int canc = vlc_savecancel();
934 b_buffering = es_out_GetBuffering( p_ts->p_out );
936 if( ( !p_ts->b_paused || b_buffering ) && !TsPopCmdLocked( p_ts, &cmd, false ) )
938 vlc_restorecancel( canc );
941 vlc_restorecancel( canc );
943 vlc_cond_wait( &p_ts->wait, &p_ts->lock );
946 if( b_buffering && i_buffering_date < 0 )
948 i_buffering_date = cmd.i_date;
950 else if( i_buffering_date > 0 )
952 p_ts->i_buffering_delay += i_buffering_date - cmd.i_date; /* It is < 0 */
954 i_buffering_date = cmd.i_date;
956 i_buffering_date = -1;
959 if( p_ts->i_rate_date < 0 )
960 p_ts->i_rate_date = cmd.i_date;
962 p_ts->i_rate_delay = 0;
963 if( p_ts->i_rate_source != p_ts->i_rate )
965 const mtime_t i_duration = cmd.i_date - p_ts->i_rate_date;
966 p_ts->i_rate_delay = i_duration * p_ts->i_rate / p_ts->i_rate_source - i_duration;
968 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 )
970 const int canc = vlc_savecancel();
972 /* Auto reset to rate 1.0 */
973 msg_Warn( p_ts->p_input, "es out timeshift: auto reset rate to %d", p_ts->i_rate_source );
975 p_ts->i_cmd_delay = 0;
976 p_ts->i_buffering_delay = 0;
978 p_ts->i_rate_delay = 0;
979 p_ts->i_rate_date = -1;
980 p_ts->i_rate = p_ts->i_rate_source;
982 if( !es_out_SetRate( p_ts->p_out, p_ts->i_rate_source, p_ts->i_rate ) )
984 vlc_value_t val = { .i_int = p_ts->i_rate };
986 * FIXME it is perfectly safe BUT it is ugly as it may hide a
987 * rate change requested by user */
988 input_ControlPush( p_ts->p_input, INPUT_CONTROL_SET_RATE, &val );
991 vlc_restorecancel( canc );
993 i_deadline = cmd.i_date + p_ts->i_cmd_delay + p_ts->i_rate_delay + p_ts->i_buffering_delay;
997 /* Regulate the speed of command processing to the same one than
999 vlc_cleanup_push( cmd_cleanup_routine, &cmd );
1001 mwait( i_deadline );
1005 /* Execute the command */
1006 const int canc = vlc_savecancel();
1007 switch( cmd.i_type )
1010 CmdExecuteAdd( p_ts->p_out, &cmd );
1011 CmdCleanAdd( &cmd );
1014 CmdExecuteSend( p_ts->p_out, &cmd );
1015 CmdCleanSend( &cmd );
1018 CmdExecuteControl( p_ts->p_out, &cmd );
1019 CmdCleanControl( &cmd );
1022 CmdExecuteDel( p_ts->p_out, &cmd );
1028 vlc_restorecancel( canc );
1034 /*****************************************************************************
1036 *****************************************************************************/
1037 static ts_storage_t *TsStorageNew( const char *psz_tmp_path, int64_t i_tmp_size_max )
1039 ts_storage_t *p_storage = calloc( 1, sizeof(ts_storage_t) );
1044 p_storage->p_next = NULL;
1047 p_storage->i_file_max = i_tmp_size_max;
1048 p_storage->i_file_size = 0;
1049 p_storage->p_filew = GetTmpFile( &p_storage->psz_file, psz_tmp_path );
1050 if( p_storage->psz_file )
1051 p_storage->p_filer = utf8_fopen( p_storage->psz_file, "rb" );
1054 p_storage->i_cmd_w = 0;
1055 p_storage->i_cmd_r = 0;
1056 p_storage->i_cmd_max = 30000;
1057 p_storage->p_cmd = malloc( p_storage->i_cmd_max * sizeof(*p_storage->p_cmd) );
1058 //fprintf( stderr, "\nSTORAGE name=%s size=%d kbytes\n", p_storage->psz_file, p_storage->i_cmd_max * sizeof(*p_storage->p_cmd) /1024 );
1060 if( !p_storage->p_cmd || !p_storage->p_filew || !p_storage->p_filer )
1062 TsStorageDelete( p_storage );
1067 static void TsStorageDelete( ts_storage_t *p_storage )
1069 while( p_storage->i_cmd_r < p_storage->i_cmd_w )
1073 TsStoragePopCmd( p_storage, &cmd, true );
1077 free( p_storage->p_cmd );
1079 if( p_storage->p_filer )
1080 fclose( p_storage->p_filer );
1081 if( p_storage->p_filew )
1082 fclose( p_storage->p_filew );
1084 if( p_storage->psz_file )
1086 utf8_unlink( p_storage->psz_file );
1087 free( p_storage->psz_file );
1092 static void TsStoragePack( ts_storage_t *p_storage )
1094 /* Try to release a bit of memory */
1095 if( p_storage->i_cmd_w >= p_storage->i_cmd_max )
1098 p_storage->i_cmd_max = __MAX( p_storage->i_cmd_w, 1 );
1100 ts_cmd_t *p_new = realloc( p_storage->p_cmd, p_storage->i_cmd_max * sizeof(*p_storage->p_cmd) );
1102 p_storage->p_cmd = p_new;
1104 static bool TsStorageIsFull( ts_storage_t *p_storage, const ts_cmd_t *p_cmd )
1106 if( p_cmd && p_cmd->i_type == C_SEND && p_storage->i_cmd_w > 0 )
1108 size_t i_size = sizeof(*p_cmd->send.p_block) + p_cmd->send.p_block->i_buffer;
1110 if( p_storage->i_file_size + i_size >= p_storage->i_file_max )
1113 return p_storage->i_cmd_w >= p_storage->i_cmd_max;
1115 static bool TsStorageIsEmpty( ts_storage_t *p_storage )
1117 return !p_storage || p_storage->i_cmd_r >= p_storage->i_cmd_w;
1119 static void TsStoragePushCmd( ts_storage_t *p_storage, const ts_cmd_t *p_cmd, bool b_flush )
1121 ts_cmd_t cmd = *p_cmd;
1123 assert( !TsStorageIsFull( p_storage, p_cmd ) );
1125 if( cmd.i_type == C_SEND )
1127 block_t *p_block = cmd.send.p_block;
1129 cmd.send.p_block = NULL;
1130 cmd.send.i_offset = ftell( p_storage->p_filew );
1132 if( fwrite( p_block, sizeof(*p_block), 1, p_storage->p_filew ) != 1 )
1134 block_Release( p_block );
1137 p_storage->i_file_size += sizeof(*p_block);
1138 if( p_block->i_buffer > 0 )
1140 if( fwrite( p_block->p_buffer, p_block->i_buffer, 1, p_storage->p_filew ) != 1 )
1142 block_Release( p_block );
1146 p_storage->i_file_size += p_block->i_buffer;
1147 block_Release( p_block );
1150 fflush( p_storage->p_filew );
1152 p_storage->p_cmd[p_storage->i_cmd_w++] = cmd;
1154 static void TsStoragePopCmd( ts_storage_t *p_storage, ts_cmd_t *p_cmd, bool b_flush )
1156 assert( !TsStorageIsEmpty( p_storage ) );
1158 *p_cmd = p_storage->p_cmd[p_storage->i_cmd_r++];
1159 if( p_cmd->i_type == C_SEND )
1164 !fseek( p_storage->p_filer, p_cmd->send.i_offset, SEEK_SET ) &&
1165 fread( &block, sizeof(block), 1, p_storage->p_filer ) == 1 )
1167 block_t *p_block = block_Alloc( block.i_buffer );
1170 p_block->i_dts = block.i_dts;
1171 p_block->i_pts = block.i_pts;
1172 p_block->i_flags = block.i_flags;
1173 p_block->i_length = block.i_length;
1174 p_block->i_rate = block.i_rate;
1175 p_block->i_nb_samples = block.i_nb_samples;
1176 p_block->i_buffer = fread( p_block->p_buffer, 1, block.i_buffer, p_storage->p_filer );
1178 p_cmd->send.p_block = p_block;
1182 //fprintf( stderr, "TsStoragePopCmd: %m\n" );
1183 p_cmd->send.p_block = block_Alloc( 1 );
1188 /*****************************************************************************
1190 *****************************************************************************/
1191 static void CmdClean( ts_cmd_t *p_cmd )
1193 switch( p_cmd->i_type )
1196 CmdCleanAdd( p_cmd );
1199 CmdCleanSend( p_cmd );
1202 CmdCleanControl( p_cmd );
1212 static int CmdInitAdd( ts_cmd_t *p_cmd, es_out_id_t *p_es, const es_format_t *p_fmt, bool b_copy )
1214 p_cmd->i_type = C_ADD;
1215 p_cmd->i_date = mdate();
1216 p_cmd->add.p_es = p_es;
1219 p_cmd->add.p_fmt = malloc( sizeof(*p_fmt) );
1220 if( !p_cmd->add.p_fmt )
1221 return VLC_EGENERIC;
1222 es_format_Copy( p_cmd->add.p_fmt, p_fmt );
1226 p_cmd->add.p_fmt = (es_format_t*)p_fmt;
1230 static void CmdExecuteAdd( es_out_t *p_out, ts_cmd_t *p_cmd )
1232 p_cmd->add.p_es->p_es = es_out_Add( p_out, p_cmd->add.p_fmt );
1234 static void CmdCleanAdd( ts_cmd_t *p_cmd )
1236 es_format_Clean( p_cmd->add.p_fmt );
1237 free( p_cmd->add.p_fmt );
1240 static void CmdInitSend( ts_cmd_t *p_cmd, es_out_id_t *p_es, block_t *p_block )
1242 p_cmd->i_type = C_SEND;
1243 p_cmd->i_date = mdate();
1244 p_cmd->send.p_es = p_es;
1245 p_cmd->send.p_block = p_block;
1247 static int CmdExecuteSend( es_out_t *p_out, ts_cmd_t *p_cmd )
1249 block_t *p_block = p_cmd->send.p_block;
1251 p_cmd->send.p_block = NULL;
1255 if( p_cmd->send.p_es->p_es )
1256 return es_out_Send( p_out, p_cmd->send.p_es->p_es, p_block );
1257 block_Release( p_block );
1259 return VLC_EGENERIC;
1261 static void CmdCleanSend( ts_cmd_t *p_cmd )
1263 if( p_cmd->send.p_block )
1264 block_Release( p_cmd->send.p_block );
1267 static int CmdInitDel( ts_cmd_t *p_cmd, es_out_id_t *p_es )
1269 p_cmd->i_type = C_DEL;
1270 p_cmd->i_date = mdate();
1271 p_cmd->del.p_es = p_es;
1274 static void CmdExecuteDel( es_out_t *p_out, ts_cmd_t *p_cmd )
1276 if( p_cmd->del.p_es->p_es )
1277 es_out_Del( p_out, p_cmd->del.p_es->p_es );
1278 free( p_cmd->del.p_es );
1281 static int CmdInitControl( ts_cmd_t *p_cmd, int i_query, va_list args, bool b_copy )
1283 p_cmd->i_type = C_CONTROL;
1284 p_cmd->i_date = mdate();
1285 p_cmd->control.i_query = i_query;
1289 /* Pass-through control */
1290 case ES_OUT_SET_ACTIVE: /* arg1= bool */
1291 p_cmd->control.b_bool = (bool)va_arg( args, int );
1294 case ES_OUT_SET_MODE: /* arg1= int */
1295 case ES_OUT_SET_GROUP: /* arg1= int */
1296 case ES_OUT_DEL_GROUP: /* arg1=int i_group */
1297 p_cmd->control.i_int = (int)va_arg( args, int );
1300 case ES_OUT_SET_PCR: /* arg1=int64_t i_pcr(microsecond!) (using default group 0)*/
1301 case ES_OUT_SET_NEXT_DISPLAY_TIME: /* arg1=int64_t i_pts(microsecond) */
1302 p_cmd->control.i_i64 = (int64_t)va_arg( args, int64_t );
1305 case ES_OUT_SET_GROUP_PCR: /* arg1= int i_group, arg2=int64_t i_pcr(microsecond!)*/
1306 p_cmd->control.int_i64.i_int = (int)va_arg( args, int );
1307 p_cmd->control.int_i64.i_i64 = (int64_t)va_arg( args, int64_t );
1310 case ES_OUT_SET_ES_SCRAMBLED_STATE:
1311 p_cmd->control.es_bool.p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
1312 p_cmd->control.es_bool.b_bool = (bool)va_arg( args, int );
1315 case ES_OUT_RESET_PCR: /* no arg */
1318 case ES_OUT_SET_META: /* arg1=const vlc_meta_t* */
1319 case ES_OUT_SET_GROUP_META: /* arg1=int i_group arg2=const vlc_meta_t* */
1321 if( i_query == ES_OUT_SET_GROUP_META )
1322 p_cmd->control.int_meta.i_int = (int)va_arg( args, int );
1323 const vlc_meta_t *p_meta = va_arg( args, const vlc_meta_t * );
1327 p_cmd->control.int_meta.p_meta = vlc_meta_New();
1328 if( !p_cmd->control.int_meta.p_meta )
1329 return VLC_EGENERIC;
1330 vlc_meta_Merge( p_cmd->control.int_meta.p_meta, p_meta );
1334 /* The cast is only needed to avoid warning */
1335 p_cmd->control.int_meta.p_meta = (vlc_meta_t*)p_meta;
1340 case ES_OUT_SET_GROUP_EPG: /* arg1=int i_group arg2=const vlc_epg_t* */
1342 p_cmd->control.int_epg.i_int = (int)va_arg( args, int );
1343 const vlc_epg_t *p_epg = va_arg( args, const vlc_epg_t * );
1347 p_cmd->control.int_epg.p_epg = vlc_epg_New( p_epg->psz_name );
1348 if( !p_cmd->control.int_epg.p_epg )
1349 return VLC_EGENERIC;
1350 for( int i = 0; i < p_epg->i_event; i++ )
1352 vlc_epg_event_t *p_evt = p_epg->pp_event[i];
1354 vlc_epg_AddEvent( p_cmd->control.int_epg.p_epg,
1355 p_evt->i_start, p_evt->i_duration,
1357 p_evt->psz_short_description, p_evt->psz_description );
1359 vlc_epg_SetCurrent( p_cmd->control.int_epg.p_epg,
1360 p_epg->p_current ? p_epg->p_current->i_start : -1 );
1364 /* The cast is only needed to avoid warning */
1365 p_cmd->control.int_epg.p_epg = (vlc_epg_t*)p_epg;
1370 /* Modified control */
1371 case ES_OUT_SET_ES: /* arg1= es_out_id_t* */
1372 case ES_OUT_RESTART_ES: /* arg1= es_out_id_t* */
1373 case ES_OUT_SET_ES_DEFAULT: /* arg1= es_out_id_t* */
1374 p_cmd->control.p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
1377 case ES_OUT_SET_ES_STATE:/* arg1= es_out_id_t* arg2=bool */
1378 p_cmd->control.es_bool.p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
1379 p_cmd->control.es_bool.b_bool = (bool)va_arg( args, int );
1382 case ES_OUT_SET_ES_FMT: /* arg1= es_out_id_t* arg2=es_format_t* */
1384 p_cmd->control.es_fmt.p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
1385 es_format_t *p_fmt = (es_format_t*)va_arg( args, es_format_t * );
1389 p_cmd->control.es_fmt.p_fmt = malloc( sizeof(*p_fmt) );
1390 if( !p_cmd->control.es_fmt.p_fmt )
1391 return VLC_EGENERIC;
1392 es_format_Copy( p_cmd->control.es_fmt.p_fmt, p_fmt );
1396 p_cmd->control.es_fmt.p_fmt = p_fmt;
1400 case ES_OUT_SET_TIMES:
1402 double f_position = (double)va_arg( args, double );
1403 mtime_t i_time = (mtime_t)va_arg( args, mtime_t );
1404 mtime_t i_length = (mtime_t)va_arg( args, mtime_t );
1406 p_cmd->control.times.f_position = f_position;
1407 p_cmd->control.times.i_time = i_time;
1408 p_cmd->control.times.i_length = i_length;
1411 case ES_OUT_SET_JITTER:
1413 mtime_t i_pts_delay = (mtime_t)va_arg( args, mtime_t );
1414 int i_cr_average = (int)va_arg( args, int );
1416 p_cmd->control.jitter.i_pts_delay = i_pts_delay;
1417 p_cmd->control.jitter.i_cr_average = i_cr_average;
1423 return VLC_EGENERIC;
1428 static int CmdExecuteControl( es_out_t *p_out, ts_cmd_t *p_cmd )
1430 const int i_query = p_cmd->control.i_query;
1434 /* Pass-through control */
1435 case ES_OUT_SET_ACTIVE: /* arg1= bool */
1436 return es_out_Control( p_out, i_query, p_cmd->control.b_bool );
1438 case ES_OUT_SET_MODE: /* arg1= int */
1439 case ES_OUT_SET_GROUP: /* arg1= int */
1440 case ES_OUT_DEL_GROUP: /* arg1=int i_group */
1441 return es_out_Control( p_out, i_query, p_cmd->control.i_int );
1443 case ES_OUT_SET_PCR: /* arg1=int64_t i_pcr(microsecond!) (using default group 0)*/
1444 case ES_OUT_SET_NEXT_DISPLAY_TIME: /* arg1=int64_t i_pts(microsecond) */
1445 return es_out_Control( p_out, i_query, p_cmd->control.i_i64 );
1447 case ES_OUT_SET_GROUP_PCR: /* arg1= int i_group, arg2=int64_t i_pcr(microsecond!)*/
1448 return es_out_Control( p_out, i_query, p_cmd->control.int_i64.i_int,
1449 p_cmd->control.int_i64.i_i64 );
1451 case ES_OUT_RESET_PCR: /* no arg */
1452 return es_out_Control( p_out, i_query );
1454 case ES_OUT_SET_GROUP_META: /* arg1=int i_group arg2=const vlc_meta_t* */
1455 return es_out_Control( p_out, i_query, p_cmd->control.int_meta.i_int,
1456 p_cmd->control.int_meta.p_meta );
1458 case ES_OUT_SET_GROUP_EPG: /* arg1=int i_group arg2=const vlc_epg_t* */
1459 return es_out_Control( p_out, i_query, p_cmd->control.int_epg.i_int,
1460 p_cmd->control.int_epg.p_epg );
1462 case ES_OUT_SET_ES_SCRAMBLED_STATE: /* arg1=int es_out_id_t* arg2=bool */
1463 return es_out_Control( p_out, i_query, p_cmd->control.es_bool.p_es->p_es,
1464 p_cmd->control.es_bool.b_bool );
1466 case ES_OUT_SET_META: /* arg1=const vlc_meta_t* */
1467 return es_out_Control( p_out, i_query, p_cmd->control.int_meta.p_meta );
1469 /* Modified control */
1470 case ES_OUT_SET_ES: /* arg1= es_out_id_t* */
1471 case ES_OUT_RESTART_ES: /* arg1= es_out_id_t* */
1472 case ES_OUT_SET_ES_DEFAULT: /* arg1= es_out_id_t* */
1473 return es_out_Control( p_out, i_query, p_cmd->control.p_es->p_es );
1475 case ES_OUT_SET_ES_STATE:/* arg1= es_out_id_t* arg2=bool */
1476 return es_out_Control( p_out, i_query, p_cmd->control.es_bool.p_es->p_es,
1477 p_cmd->control.es_bool.b_bool );
1479 case ES_OUT_SET_ES_FMT: /* arg1= es_out_id_t* arg2=es_format_t* */
1480 return es_out_Control( p_out, i_query, p_cmd->control.es_fmt.p_es->p_es,
1481 p_cmd->control.es_fmt.p_fmt );
1483 case ES_OUT_SET_TIMES:
1484 return es_out_Control( p_out, i_query, p_cmd->control.times.f_position,
1485 p_cmd->control.times.i_time,
1486 p_cmd->control.times.i_length );
1487 case ES_OUT_SET_JITTER:
1488 return es_out_Control( p_out, i_query, p_cmd->control.jitter.i_pts_delay,
1489 p_cmd->control.jitter.i_cr_average );
1493 return VLC_EGENERIC;
1496 static void CmdCleanControl( ts_cmd_t *p_cmd )
1498 if( ( p_cmd->control.i_query == ES_OUT_SET_GROUP_META ||
1499 p_cmd->control.i_query == ES_OUT_SET_META ) &&
1500 p_cmd->control.int_meta.p_meta )
1502 vlc_meta_Delete( p_cmd->control.int_meta.p_meta );
1504 else if( p_cmd->control.i_query == ES_OUT_SET_GROUP_EPG &&
1505 p_cmd->control.int_epg.p_epg )
1507 vlc_epg_Delete( p_cmd->control.int_epg.p_epg );
1509 else if( p_cmd->control.i_query == ES_OUT_SET_ES_FMT &&
1510 p_cmd->control.es_fmt.p_fmt )
1512 es_format_Clean( p_cmd->control.es_fmt.p_fmt );
1513 free( p_cmd->control.es_fmt.p_fmt );
1518 /*****************************************************************************
1520 *****************************************************************************/
1521 static char *GetTmpPath( char *psz_path )
1523 if( psz_path && *psz_path )
1525 /* Make sure that the path exists and is a directory */
1527 const int i_ret = utf8_stat( psz_path, &s );
1529 if( i_ret < 0 && !utf8_mkdir( psz_path, 0600 ) )
1531 else if( i_ret == 0 && ( s.st_mode & S_IFDIR ) )
1536 /* Create a suitable path */
1537 #if defined (WIN32) && !defined (UNDER_CE)
1538 const DWORD dwCount = GetTempPathW( 0, NULL );
1539 wchar_t *psw_path = calloc( dwCount + 1, sizeof(wchar_t) );
1542 if( GetTempPathW( dwCount + 1, psw_path ) <= 0 )
1546 psw_path = _wgetcwd( NULL, 0 );
1553 psz_path = FromWide( psw_path );
1554 while( psz_path && *psz_path && psz_path[strlen( psz_path ) - 1] == '\\' )
1555 psz_path[strlen( psz_path ) - 1] = '\0';
1560 if( !psz_path || *psz_path == '\0' )
1563 return strdup( "C:" );
1566 psz_path = strdup( "/tmp" );
1572 static FILE *GetTmpFile( char **ppsz_file, const char *psz_path )
1580 if( asprintf( &psz_name, "%s/vlc-timeshift.XXXXXX", psz_path ) < 0 )
1584 fd = utf8_mkstemp( psz_name );
1585 *ppsz_file = psz_name;
1591 f = fdopen( fd, "w+b" );