/usr/include/mlt/framework/mlt_events.h is in libmlt-dev 6.4.1-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 | /**
* \file mlt_events.h
* \brief event handling
* \see mlt_events_struct
*
* Copyright (C) 2004-2014 Meltytech, LLC
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef MLT_EVENTS_H
#define MLT_EVENTS_H
#include "mlt_types.h"
#if GCC_VERSION >= 40000
typedef void ( *mlt_transmitter )( void *, ... );
typedef void ( *mlt_listener )( void *, ... );
#else
/** callback function to send an event message
*
*/
typedef void ( *mlt_transmitter )( );
/** event handler when receiving an event message
* \param the properties object on which the event was registered
* \param an opaque pointer to a service or really an object
* \param variable args supplied by the transmitter
*/
typedef void ( *mlt_listener )( );
#endif
extern void mlt_events_init( mlt_properties self );
extern int mlt_events_register( mlt_properties self, const char *id, mlt_transmitter transmitter );
extern int mlt_events_fire( mlt_properties self, const char *id, ... );
extern mlt_event mlt_events_listen( mlt_properties self, void *service, const char *id, mlt_listener listener );
extern void mlt_events_block( mlt_properties self, void *service );
extern void mlt_events_unblock( mlt_properties self, void *service );
extern void mlt_events_disconnect( mlt_properties self, void *service );
extern mlt_event mlt_events_setup_wait_for( mlt_properties self, const char *id );
extern void mlt_events_wait_for( mlt_properties self, mlt_event event );
extern void mlt_events_close_wait_for( mlt_properties self, mlt_event event );
extern void mlt_event_inc_ref( mlt_event self );
extern void mlt_event_block( mlt_event self );
extern void mlt_event_unblock( mlt_event self );
extern void mlt_event_close( mlt_event self );
#endif
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