research.m1stereo.tv/gitweb/ - melted/blob - src/framework/mlt_playlist.h

   1 /**
   2  * \file mlt_playlist.h
   3  * \brief playlist service class
   4  *
   5  * Copyright (C) 2003-2008 Ushodaya Enterprises Limited
   6  * \author Charles Yates <charles.yates@pandora.be>
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 #ifndef _MLT_PLAYLIST_H_
  24 #define _MLT_PLAYLIST_H_
  25
  26 #include "mlt_producer.h"
  27
  28 /** \brief structure for returning clip information
  29  */
  30
  31 typedef struct
  32 {
  33         int clip;
  34         mlt_producer producer;
  35         mlt_producer cut;
  36         mlt_position start;
  37         char *resource;
  38         mlt_position frame_in;
  39         mlt_position frame_out;
  40         mlt_position frame_count;
  41         mlt_position length;
  42         float fps;
  43         int repeat;
  44 }
  45 mlt_playlist_clip_info;
  46
  47 /** Private definition.
  48 */
  49
  50 typedef struct playlist_entry_s playlist_entry;
  51
  52 /** \brief Playlist class
  53  *
  54  * \extends mlt_producer_s
  55  */
  56
  57 struct mlt_playlist_s
  58 {
  59         struct mlt_producer_s parent;
  60         struct mlt_producer_s blank;
  61
  62         int size;
  63         int count;
  64         playlist_entry **list;
  65 };
  66
  67 #define MLT_PLAYLIST_PRODUCER( playlist )       ( &( playlist )->parent )
  68 #define MLT_PLAYLIST_SERVICE( playlist )        MLT_PRODUCER_SERVICE( MLT_PLAYLIST_PRODUCER( playlist ) )
  69 #define MLT_PLAYLIST_PROPERTIES( playlist )     MLT_SERVICE_PROPERTIES( MLT_PLAYLIST_SERVICE( playlist ) )
  70
  71 extern mlt_playlist mlt_playlist_init( );
  72 extern mlt_producer mlt_playlist_producer( mlt_playlist self );
  73 extern mlt_service mlt_playlist_service( mlt_playlist self );
  74 extern mlt_properties mlt_playlist_properties( mlt_playlist self );
  75 extern int mlt_playlist_count( mlt_playlist self );
  76 extern int mlt_playlist_clear( mlt_playlist self );
  77 extern int mlt_playlist_append( mlt_playlist self, mlt_producer producer );
  78 extern int mlt_playlist_append_io( mlt_playlist self, mlt_producer producer, mlt_position in, mlt_position out );
  79 extern int mlt_playlist_blank( mlt_playlist self, mlt_position length );
  80 extern mlt_position mlt_playlist_clip( mlt_playlist self, mlt_whence whence, int index );
  81 extern int mlt_playlist_current_clip( mlt_playlist self );
  82 extern mlt_producer mlt_playlist_current( mlt_playlist self );
  83 extern int mlt_playlist_get_clip_info( mlt_playlist self, mlt_playlist_clip_info *info, int index );
  84 extern int mlt_playlist_insert( mlt_playlist self, mlt_producer producer, int where, mlt_position in, mlt_position out );
  85 extern int mlt_playlist_remove( mlt_playlist self, int where );
  86 extern int mlt_playlist_move( mlt_playlist self, int from, int to );
  87 extern int mlt_playlist_resize_clip( mlt_playlist self, int clip, mlt_position in, mlt_position out );
  88 extern int mlt_playlist_repeat_clip( mlt_playlist self, int clip, int repeat );
  89 extern int mlt_playlist_split( mlt_playlist self, int clip, mlt_position position );
  90 extern int mlt_playlist_split_at( mlt_playlist self, mlt_position position, int left );
  91 extern int mlt_playlist_join( mlt_playlist self, int clip, int count, int merge );
  92 extern int mlt_playlist_mix( mlt_playlist self, int clip, int length, mlt_transition transition );
  93 extern int mlt_playlist_mix_add( mlt_playlist self, int clip, mlt_transition transition );
  94 extern mlt_producer mlt_playlist_get_clip( mlt_playlist self, int clip );
  95 extern mlt_producer mlt_playlist_get_clip_at( mlt_playlist self, mlt_position position );
  96 extern int mlt_playlist_get_clip_index_at( mlt_playlist self, mlt_position position );
  97 extern int mlt_playlist_clip_is_mix( mlt_playlist self, int clip );
  98 extern void mlt_playlist_consolidate_blanks( mlt_playlist self, int keep_length );
  99 extern int mlt_playlist_is_blank( mlt_playlist self, int clip );
 100 extern int mlt_playlist_is_blank_at( mlt_playlist self, mlt_position position );
 101 extern void mlt_playlist_insert_blank( mlt_playlist self, int clip, int length );
 102 extern void mlt_playlist_pad_blanks( mlt_playlist self, mlt_position position, int length, int find );
 103 extern mlt_producer mlt_playlist_replace_with_blank( mlt_playlist self, int clip );
 104 extern int mlt_playlist_insert_at( mlt_playlist self, mlt_position position, mlt_producer producer, int mode );
 105 extern int mlt_playlist_clip_start( mlt_playlist self, int clip );
 106 extern int mlt_playlist_clip_length( mlt_playlist self, int clip );
 107 extern int mlt_playlist_blanks_from( mlt_playlist self, int clip, int bounded );
 108 extern int mlt_playlist_remove_region( mlt_playlist self, mlt_position position, int length );
 109 extern int mlt_playlist_move_region( mlt_playlist self, mlt_position position, int length, int new_position );
 110 extern void mlt_playlist_close( mlt_playlist self );
 111
 112 #endif
 113