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mlt/src/framework/mlt_playlist.h

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4.9 KiB

/*
* mlt_playlist.h -- playlist service class
* Copyright (C) 2003-2004 Ushodaya Enterprises Limited
* Author: Charles Yates <charles.yates@pandora.be>
*
* 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_PLAYLIST_H_
#define _MLT_PLAYLIST_H_
#include "mlt_producer.h"
/** Structure for returning clip information.
*/
typedef struct
{
int clip;
mlt_producer producer;
mlt_producer cut;
mlt_position start;
char *resource;
mlt_position frame_in;
mlt_position frame_out;
mlt_position frame_count;
mlt_position length;
float fps;
int repeat;
}
mlt_playlist_clip_info;
/** Private definition.
*/
typedef struct playlist_entry_s playlist_entry;
struct mlt_playlist_s
{
struct mlt_producer_s parent;
struct mlt_producer_s blank;
int size;
int count;
playlist_entry **list;
};
/** Public final methods
*/
#define MLT_PLAYLIST_PRODUCER( playlist ) ( &( playlist )->parent )
#define MLT_PLAYLIST_SERVICE( playlist ) MLT_PRODUCER_SERVICE( MLT_PLAYLIST_PRODUCER( playlist ) )
#define MLT_PLAYLIST_PROPERTIES( playlist ) MLT_SERVICE_PROPERTIES( MLT_PLAYLIST_SERVICE( playlist ) )
extern mlt_playlist mlt_playlist_init( );
extern mlt_producer mlt_playlist_producer( mlt_playlist self );
extern mlt_service mlt_playlist_service( mlt_playlist self );
extern mlt_properties mlt_playlist_properties( mlt_playlist self );
extern int mlt_playlist_count( mlt_playlist self );
extern int mlt_playlist_clear( mlt_playlist self );
extern int mlt_playlist_append( mlt_playlist self, mlt_producer producer );
extern int mlt_playlist_append_io( mlt_playlist self, mlt_producer producer, mlt_position in, mlt_position out );
extern int mlt_playlist_blank( mlt_playlist self, mlt_position length );
extern mlt_position mlt_playlist_clip( mlt_playlist self, mlt_whence whence, int index );
extern int mlt_playlist_current_clip( mlt_playlist self );
extern mlt_producer mlt_playlist_current( mlt_playlist self );
extern int mlt_playlist_get_clip_info( mlt_playlist self, mlt_playlist_clip_info *info, int index );
extern int mlt_playlist_insert( mlt_playlist self, mlt_producer producer, int where, mlt_position in, mlt_position out );
extern int mlt_playlist_remove( mlt_playlist self, int where );
extern int mlt_playlist_move( mlt_playlist self, int from, int to );
extern int mlt_playlist_resize_clip( mlt_playlist self, int clip, mlt_position in, mlt_position out );
extern int mlt_playlist_repeat_clip( mlt_playlist self, int clip, int repeat );
extern int mlt_playlist_split( mlt_playlist self, int clip, mlt_position position );
extern int mlt_playlist_split_at( mlt_playlist self, mlt_position position, int left );
extern int mlt_playlist_join( mlt_playlist self, int clip, int count, int merge );
extern int mlt_playlist_mix( mlt_playlist self, int clip, int length, mlt_transition transition );
extern int mlt_playlist_mix_add( mlt_playlist self, int clip, mlt_transition transition );
extern mlt_producer mlt_playlist_get_clip( mlt_playlist self, int clip );
extern mlt_producer mlt_playlist_get_clip_at( mlt_playlist self, mlt_position position );
extern int mlt_playlist_get_clip_index_at( mlt_playlist self, mlt_position position );
extern int mlt_playlist_clip_is_mix( mlt_playlist self, int clip );
extern void mlt_playlist_consolidate_blanks( mlt_playlist self, int keep_length );
extern int mlt_playlist_is_blank( mlt_playlist self, int clip );
extern int mlt_playlist_is_blank_at( mlt_playlist self, mlt_position position );
extern void mlt_playlist_insert_blank( mlt_playlist self, int clip, int length );
extern void mlt_playlist_pad_blanks( mlt_playlist self, mlt_position position, int length, int find );
extern mlt_producer mlt_playlist_replace_with_blank( mlt_playlist self, int clip );
extern int mlt_playlist_insert_at( mlt_playlist self, mlt_position position, mlt_producer producer, int mode );
extern int mlt_playlist_clip_start( mlt_playlist self, int clip );
extern int mlt_playlist_clip_length( mlt_playlist self, int clip );
extern int mlt_playlist_blanks_from( mlt_playlist self, int clip, int bounded );
extern int mlt_playlist_remove_region( mlt_playlist self, mlt_position position, int length );
extern int mlt_playlist_move_region( mlt_playlist self, mlt_position position, int length, int new_position );
extern void mlt_playlist_close( mlt_playlist self );
#endif