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 bytes",
335 (int)p_sys->i_tmp_size_max );
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:
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_samples = block.i_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_GROUP_META: /* arg1=int i_group arg2=vlc_meta_t* */
1320 p_cmd->control.int_meta.i_int = (int)va_arg( args, int );
1321 vlc_meta_t *p_meta = (vlc_meta_t*)va_arg( args, vlc_meta_t * );
1325 p_cmd->control.int_meta.p_meta = vlc_meta_New();
1326 if( !p_cmd->control.int_meta.p_meta )
1327 return VLC_EGENERIC;
1328 vlc_meta_Merge( p_cmd->control.int_meta.p_meta, p_meta );
1332 p_cmd->control.int_meta.p_meta = p_meta;
1337 case ES_OUT_SET_GROUP_EPG: /* arg1=int i_group arg2=vlc_epg_t* */
1339 p_cmd->control.int_epg.i_int = (int)va_arg( args, int );
1340 vlc_epg_t *p_epg = (vlc_epg_t*)va_arg( args, vlc_epg_t * );
1344 p_cmd->control.int_epg.p_epg = vlc_epg_New( p_epg->psz_name );
1345 if( !p_cmd->control.int_epg.p_epg )
1346 return VLC_EGENERIC;
1347 for( int i = 0; i < p_epg->i_event; i++ )
1349 vlc_epg_event_t *p_evt = p_epg->pp_event[i];
1351 vlc_epg_AddEvent( p_cmd->control.int_epg.p_epg,
1352 p_evt->i_start, p_evt->i_duration,
1354 p_evt->psz_short_description, p_evt->psz_description );
1356 vlc_epg_SetCurrent( p_cmd->control.int_epg.p_epg,
1357 p_epg->p_current ? p_epg->p_current->i_start : -1 );
1361 p_cmd->control.int_epg.p_epg = p_epg;
1366 /* Modified control */
1367 case ES_OUT_SET_ES: /* arg1= es_out_id_t* */
1368 case ES_OUT_RESTART_ES: /* arg1= es_out_id_t* */
1369 case ES_OUT_SET_ES_DEFAULT: /* arg1= es_out_id_t* */
1370 p_cmd->control.p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
1373 case ES_OUT_SET_ES_STATE:/* arg1= es_out_id_t* arg2=bool */
1374 p_cmd->control.es_bool.p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
1375 p_cmd->control.es_bool.b_bool = (bool)va_arg( args, int );
1378 case ES_OUT_SET_ES_FMT: /* arg1= es_out_id_t* arg2=es_format_t* */
1380 p_cmd->control.es_fmt.p_es = (es_out_id_t*)va_arg( args, es_out_id_t * );
1381 es_format_t *p_fmt = (es_format_t*)va_arg( args, es_format_t * );
1385 p_cmd->control.es_fmt.p_fmt = malloc( sizeof(*p_fmt) );
1386 if( !p_cmd->control.es_fmt.p_fmt )
1387 return VLC_EGENERIC;
1388 es_format_Copy( p_cmd->control.es_fmt.p_fmt, p_fmt );
1392 p_cmd->control.es_fmt.p_fmt = p_fmt;
1396 case ES_OUT_SET_TIMES:
1398 double f_position = (double)va_arg( args, double );
1399 mtime_t i_time = (mtime_t)va_arg( args, mtime_t );
1400 mtime_t i_length = (mtime_t)va_arg( args, mtime_t );
1402 p_cmd->control.times.f_position = f_position;
1403 p_cmd->control.times.i_time = i_time;
1404 p_cmd->control.times.i_length = i_length;
1407 case ES_OUT_SET_JITTER:
1409 mtime_t i_pts_delay = (mtime_t)va_arg( args, mtime_t );
1410 int i_cr_average = (int)va_arg( args, int );
1412 p_cmd->control.jitter.i_pts_delay = i_pts_delay;
1413 p_cmd->control.jitter.i_cr_average = i_cr_average;
1419 return VLC_EGENERIC;
1424 static int CmdExecuteControl( es_out_t *p_out, ts_cmd_t *p_cmd )
1426 const int i_query = p_cmd->control.i_query;
1430 /* Pass-through control */
1431 case ES_OUT_SET_ACTIVE: /* arg1= bool */
1432 return es_out_Control( p_out, i_query, p_cmd->control.b_bool );
1434 case ES_OUT_SET_MODE: /* arg1= int */
1435 case ES_OUT_SET_GROUP: /* arg1= int */
1436 case ES_OUT_DEL_GROUP: /* arg1=int i_group */
1437 return es_out_Control( p_out, i_query, p_cmd->control.i_int );
1439 case ES_OUT_SET_PCR: /* arg1=int64_t i_pcr(microsecond!) (using default group 0)*/
1440 case ES_OUT_SET_NEXT_DISPLAY_TIME: /* arg1=int64_t i_pts(microsecond) */
1441 return es_out_Control( p_out, i_query, p_cmd->control.i_i64 );
1443 case ES_OUT_SET_GROUP_PCR: /* arg1= int i_group, arg2=int64_t i_pcr(microsecond!)*/
1444 return es_out_Control( p_out, i_query, p_cmd->control.int_i64.i_int,
1445 p_cmd->control.int_i64.i_i64 );
1447 case ES_OUT_RESET_PCR: /* no arg */
1448 return es_out_Control( p_out, i_query );
1450 case ES_OUT_SET_GROUP_META: /* arg1=int i_group arg2=vlc_meta_t* */
1451 return es_out_Control( p_out, i_query, p_cmd->control.int_meta.i_int,
1452 p_cmd->control.int_meta.p_meta );
1454 case ES_OUT_SET_GROUP_EPG: /* arg1=int i_group arg2=vlc_epg_t* */
1455 return es_out_Control( p_out, i_query, p_cmd->control.int_epg.i_int,
1456 p_cmd->control.int_epg.p_epg );
1458 case ES_OUT_SET_ES_SCRAMBLED_STATE: /* arg1=int es_out_id_t* arg2=bool */
1459 return es_out_Control( p_out, i_query, p_cmd->control.es_bool.p_es->p_es,
1460 p_cmd->control.es_bool.b_bool );
1462 /* Modified control */
1463 case ES_OUT_SET_ES: /* arg1= es_out_id_t* */
1464 case ES_OUT_RESTART_ES: /* arg1= es_out_id_t* */
1465 case ES_OUT_SET_ES_DEFAULT: /* arg1= es_out_id_t* */
1466 return es_out_Control( p_out, i_query, p_cmd->control.p_es->p_es );
1468 case ES_OUT_SET_ES_STATE:/* arg1= es_out_id_t* arg2=bool */
1469 return es_out_Control( p_out, i_query, p_cmd->control.es_bool.p_es->p_es,
1470 p_cmd->control.es_bool.b_bool );
1472 case ES_OUT_SET_ES_FMT: /* arg1= es_out_id_t* arg2=es_format_t* */
1473 return es_out_Control( p_out, i_query, p_cmd->control.es_fmt.p_es->p_es,
1474 p_cmd->control.es_fmt.p_fmt );
1476 case ES_OUT_SET_TIMES:
1477 return es_out_Control( p_out, i_query, p_cmd->control.times.f_position,
1478 p_cmd->control.times.i_time,
1479 p_cmd->control.times.i_length );
1480 case ES_OUT_SET_JITTER:
1481 return es_out_Control( p_out, i_query, p_cmd->control.jitter.i_pts_delay,
1482 p_cmd->control.jitter.i_cr_average );
1486 return VLC_EGENERIC;
1489 static void CmdCleanControl( ts_cmd_t *p_cmd )
1491 if( p_cmd->control.i_query == ES_OUT_SET_GROUP_META &&
1492 p_cmd->control.int_meta.p_meta )
1494 vlc_meta_Delete( p_cmd->control.int_meta.p_meta );
1496 else if( p_cmd->control.i_query == ES_OUT_SET_GROUP_EPG &&
1497 p_cmd->control.int_epg.p_epg )
1499 vlc_epg_Delete( p_cmd->control.int_epg.p_epg );
1501 else if( p_cmd->control.i_query == ES_OUT_SET_ES_FMT &&
1502 p_cmd->control.es_fmt.p_fmt )
1504 es_format_Clean( p_cmd->control.es_fmt.p_fmt );
1505 free( p_cmd->control.es_fmt.p_fmt );
1510 /*****************************************************************************
1512 *****************************************************************************/
1513 static char *GetTmpPath( char *psz_path )
1515 if( psz_path && *psz_path )
1517 /* Make sure that the path exists and is a directory */
1519 const int i_ret = utf8_stat( psz_path, &s );
1521 if( i_ret < 0 && !utf8_mkdir( psz_path, 0600 ) )
1523 else if( i_ret == 0 && ( s.st_mode & S_IFDIR ) )
1528 /* Create a suitable path */
1529 #if defined (WIN32) && !defined (UNDER_CE)
1530 const DWORD dwCount = GetTempPathW( 0, NULL );
1531 wchar_t *psw_path = calloc( dwCount + 1, sizeof(wchar_t) );
1534 if( GetTempPathW( dwCount + 1, psw_path ) <= 0 )
1538 psw_path = _wgetcwd( NULL, 0 );
1545 psz_path = FromWide( psw_path );
1546 while( psz_path && *psz_path && psz_path[strlen( psz_path ) - 1] == '\\' )
1547 psz_path[strlen( psz_path ) - 1] = '\0';
1552 if( !psz_path || *psz_path == '\0' )
1555 return strdup( "C:" );
1558 psz_path = strdup( "/tmp" );
1564 static FILE *GetTmpFile( char **ppsz_file, const char *psz_path )
1572 if( asprintf( &psz_name, "%s/vlc-timeshift.XXXXXX", psz_path ) < 0 )
1576 fd = utf8_mkstemp( psz_name );
1577 *ppsz_file = psz_name;
1583 f = fdopen( fd, "w+b" );