research.m1stereo.tv/gitweb/ - melted/blob - mlt++/src/MltPlaylist.cpp

   1 /**
   2  * MltPlaylist.cpp - MLT Wrapper
   3  * Copyright (C) 2004-2005 Charles Yates
   4  * Author: Charles Yates <charles.yates@pandora.be>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU Lesser General Public License as published
   8  * by the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software Foundation,
  18  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 #include <string.h>
  22 #include <stdlib.h>
  23 #include "MltPlaylist.h"
  24 #include "MltTransition.h"
  25 using namespace Mlt;
  26
  27 ClipInfo::ClipInfo( ) :
  28         clip( 0 ),
  29         producer( NULL ),
  30         cut( NULL ),
  31         start( 0 ),
  32         resource( NULL ),
  33         frame_in( 0 ),
  34         frame_out( 0 ),
  35         frame_count( 0 ),
  36         length( 0 ),
  37         fps( 0 ),
  38         repeat( 0 )
  39 {
  40 }
  41
  42 ClipInfo::ClipInfo( mlt_playlist_clip_info *info ) :
  43         clip( info->clip ),
  44         producer( new Producer( info->producer ) ),
  45         cut( new Producer( info->cut ) ),
  46         start( info->start ),
  47         resource( info->resource? strdup( info->resource )  : 0 ),
  48         frame_in( info->frame_in ),
  49         frame_out( info->frame_out ),
  50         frame_count( info->frame_count ),
  51         length( info->length ),
  52         fps( info->fps ),
  53         repeat( info->repeat )
  54 {
  55 }
  56
  57 ClipInfo::~ClipInfo( )
  58 {
  59         delete producer;
  60         delete cut;
  61         free( resource );
  62 }
  63
  64 void ClipInfo::update( mlt_playlist_clip_info *info )
  65 {
  66         delete producer;
  67         delete cut;
  68         free( resource );
  69         clip = info->clip;
  70         producer = new Producer( info->producer );
  71         cut = new Producer( info->cut );
  72         start = info->start;
  73         resource = strdup( info->resource );
  74         frame_in = info->frame_in;
  75         frame_out = info->frame_out;
  76         frame_count = info->frame_count;
  77         length = info->length;
  78         fps = info->fps;
  79         repeat = info->repeat;
  80 }
  81
  82 Playlist::Playlist( ) :
  83         instance( NULL )
  84 {
  85         instance = mlt_playlist_init( );
  86 }
  87
  88 Playlist::Playlist( Service &producer ) :
  89         instance( NULL )
  90 {
  91         if ( producer.type( ) == playlist_type )
  92         {
  93                 instance = ( mlt_playlist )producer.get_service( );
  94                 inc_ref( );
  95         }
  96 }
  97
  98 Playlist::Playlist( Playlist &playlist ) :
  99         Mlt::Producer( playlist ),
 100         instance( playlist.get_playlist( ) )
 101 {
 102         inc_ref( );
 103 }
 104
 105 Playlist::Playlist( mlt_playlist playlist ) :
 106         instance( playlist )
 107 {
 108         inc_ref( );
 109 }
 110
 111 Playlist::~Playlist( )
 112 {
 113         mlt_playlist_close( instance );
 114 }
 115
 116 mlt_playlist Playlist::get_playlist( )
 117 {
 118         return instance;
 119 }
 120
 121 mlt_producer Playlist::get_producer( )
 122 {
 123         return mlt_playlist_producer( get_playlist( ) );
 124 }
 125
 126 int Playlist::count( )
 127 {
 128         return mlt_playlist_count( get_playlist( ) );
 129 }
 130
 131 int Playlist::clear( )
 132 {
 133         return mlt_playlist_clear( get_playlist( ) );
 134 }
 135
 136 int Playlist::append( Producer &producer, int in, int out )
 137 {
 138         return mlt_playlist_append_io( get_playlist( ), producer.get_producer( ), in, out );
 139 }
 140
 141 int Playlist::blank( int length )
 142 {
 143         return mlt_playlist_blank( get_playlist( ), length );
 144 }
 145
 146 int Playlist::clip( mlt_whence whence, int index )
 147 {
 148         return mlt_playlist_clip( get_playlist( ), whence, index );
 149 }
 150
 151 int Playlist::current_clip( )
 152 {
 153         return mlt_playlist_current_clip( get_playlist( ) );
 154 }
 155
 156 Producer *Playlist::current( )
 157 {
 158         return new Producer( mlt_playlist_current( get_playlist( ) ) );
 159 }
 160
 161 ClipInfo *Playlist::clip_info( int index, ClipInfo *info )
 162 {
 163         mlt_playlist_clip_info clip_info;
 164         if ( mlt_playlist_get_clip_info( get_playlist( ), &clip_info, index ) )
 165                 return NULL;
 166         if ( info == NULL )
 167                 return new ClipInfo( &clip_info );
 168         info->update( &clip_info );
 169         return info;
 170 }
 171
 172 void Playlist::delete_clip_info( ClipInfo *info )
 173 {
 174         delete info;
 175 }
 176
 177 int Playlist::insert( Producer &producer, int where, int in, int out )
 178 {
 179         return mlt_playlist_insert( get_playlist( ), producer.get_producer( ), where, in, out );
 180 }
 181
 182 int Playlist::remove( int where )
 183 {
 184         return mlt_playlist_remove( get_playlist( ), where );
 185 }
 186
 187 int Playlist::move( int from, int to )
 188 {
 189         return mlt_playlist_move( get_playlist( ), from, to );
 190 }
 191
 192 int Playlist::resize_clip( int clip, int in, int out )
 193 {
 194         return mlt_playlist_resize_clip( get_playlist( ), clip, in, out );
 195 }
 196
 197 int Playlist::split( int clip, int position )
 198 {
 199         return mlt_playlist_split( get_playlist( ), clip, position );
 200 }
 201
 202 int Playlist::split_at( int position, bool left )
 203 {
 204         return mlt_playlist_split_at( get_playlist( ), position, left );
 205 }
 206
 207 int Playlist::join( int clip, int count, int merge )
 208 {
 209         return mlt_playlist_join( get_playlist( ), clip, count, merge );
 210 }
 211
 212 int Playlist::mix( int clip, int length, Transition *transition )
 213 {
 214         return mlt_playlist_mix( get_playlist( ), clip, length, transition == NULL ? NULL : transition->get_transition( ) );
 215 }
 216
 217 int Playlist::mix_add( int clip, Transition *transition )
 218 {
 219         return mlt_playlist_mix_add( get_playlist( ), clip, transition == NULL ? NULL : transition->get_transition( ) );
 220 }
 221
 222 int Playlist::repeat( int clip, int count )
 223 {
 224         return mlt_playlist_repeat_clip( get_playlist( ), clip, count );
 225 }
 226
 227 Producer *Playlist::get_clip( int clip )
 228 {
 229         mlt_producer producer = mlt_playlist_get_clip( get_playlist( ), clip );
 230         return producer != NULL ? new Producer( producer ) : NULL;
 231 }
 232
 233 Producer *Playlist::get_clip_at( int position )
 234 {
 235         mlt_producer producer = mlt_playlist_get_clip_at( get_playlist( ), position );
 236         return producer != NULL ? new Producer( producer ) : NULL;
 237 }
 238
 239 int Playlist::get_clip_index_at( int position )
 240 {
 241         return mlt_playlist_get_clip_index_at( get_playlist( ), position );
 242 }
 243
 244 bool Playlist::is_mix( int clip )
 245 {
 246         return mlt_playlist_clip_is_mix( get_playlist( ), clip ) != 0;
 247 }
 248
 249 bool Playlist::is_blank( int clip )
 250 {
 251         return mlt_playlist_is_blank( get_playlist( ), clip ) != 0;
 252 }
 253
 254 bool Playlist::is_blank_at( int position )
 255 {
 256         return mlt_playlist_is_blank_at( get_playlist( ), position ) != 0;
 257 }
 258
 259 Producer *Playlist::replace_with_blank( int clip )
 260 {
 261         mlt_producer producer = mlt_playlist_replace_with_blank( get_playlist( ), clip );
 262         Producer *object = producer != NULL ? new Producer( producer ) : NULL;
 263         mlt_producer_close( producer );
 264         return object;
 265 }
 266
 267 void Playlist::consolidate_blanks( int keep_length )
 268 {
 269         return mlt_playlist_consolidate_blanks( get_playlist( ), keep_length );
 270 }
 271
 272 void Playlist::insert_blank( int clip, int length )
 273 {
 274         mlt_playlist_insert_blank( get_playlist( ), clip, length );
 275 }
 276
 277 void Playlist::pad_blanks( int position, int length, int find )
 278 {
 279         mlt_playlist_pad_blanks( get_playlist( ), position, length, find );
 280 }
 281
 282 int Playlist::insert_at( int position, Producer *producer, int mode )
 283 {
 284         return mlt_playlist_insert_at( get_playlist( ), position, producer->get_producer( ), mode );
 285 }
 286
 287 int Playlist::insert_at( int position, Producer &producer, int mode )
 288 {
 289         return mlt_playlist_insert_at( get_playlist( ), position, producer.get_producer( ), mode );
 290 }
 291
 292 int Playlist::clip_start( int clip )
 293 {
 294         return mlt_playlist_clip_start( get_playlist( ), clip );
 295 }
 296
 297 int Playlist::blanks_from( int clip, int bounded )
 298 {
 299         return mlt_playlist_blanks_from( get_playlist( ), clip, bounded );
 300 }
 301
 302 int Playlist::clip_length( int clip )
 303 {
 304         return mlt_playlist_clip_length( get_playlist( ), clip );
 305 }
 306
 307 int Playlist::remove_region( int position, int length )
 308 {
 309         return mlt_playlist_remove_region( get_playlist( ), position, length );
 310 }
 311
 312 int Playlist::move_region( int position, int length, int new_position )
 313 {
 314         return mlt_playlist_move_region( get_playlist( ), position, length, new_position );
 315 }
 316