5 #include <framework/mlt.h>
9 mlt_producer create_producer( char *file )
11 mlt_producer result = NULL;
13 // 1st Line preferences
14 if ( strstr( file, ".mpg" ) )
15 result = mlt_factory_producer( "mcmpeg", file );
16 else if ( strstr( file, ".mpeg" ) )
17 result = mlt_factory_producer( "mcmpeg", file );
18 else if ( strstr( file, ".dv" ) )
19 result = mlt_factory_producer( "mcdv", file );
20 else if ( strstr( file, ".dif" ) )
21 result = mlt_factory_producer( "mcdv", file );
22 else if ( strstr( file, ".jpg" ) )
23 result = mlt_factory_producer( "pixbuf", file );
24 else if ( strstr( file, ".JPG" ) )
25 result = mlt_factory_producer( "pixbuf", file );
26 else if ( strstr( file, ".jpeg" ) )
27 result = mlt_factory_producer( "pixbuf", file );
28 else if ( strstr( file, ".png" ) )
29 result = mlt_factory_producer( "pixbuf", file );
32 if ( result == NULL && strstr( file, ".dv" ) )
33 result = mlt_factory_producer( "libdv", file );
34 else if ( result == NULL && strstr( file, ".dif" ) )
35 result = mlt_factory_producer( "libdv", file );
39 result = mlt_factory_producer( "ppm", file );
44 void transport_action( mlt_producer producer, char *value )
46 mlt_properties properties = mlt_producer_properties( producer );
51 mlt_properties_set_int( properties, "done", 1 );
54 mlt_producer_set_speed( producer, 1 );
55 mlt_producer_seek( producer, 0 );
58 mlt_producer_set_speed( producer, -5 );
61 mlt_producer_set_speed( producer, -2.5 );
64 mlt_producer_set_speed( producer, -1 );
67 mlt_producer_set_speed( producer, -0.5 );
70 mlt_producer_set_speed( producer, 0 );
73 mlt_producer_set_speed( producer, 0.5 );
76 mlt_producer_set_speed( producer, 1 );
79 mlt_producer_set_speed( producer, 2.5 );
82 mlt_producer_set_speed( producer, 5 );
87 mlt_consumer create_consumer( char *id, mlt_producer producer )
89 char *arg = strchr( id, ':' );
92 mlt_consumer consumer = mlt_factory_consumer( id, arg );
93 if ( consumer != NULL )
95 mlt_properties properties = mlt_consumer_properties( consumer );
96 mlt_properties_set_data( properties, "transport_callback", transport_action, 0, NULL, NULL );
97 mlt_properties_set_data( properties, "transport_producer", producer, 0, NULL, NULL );
102 void track_service( mlt_field field, void *service, mlt_destructor destructor )
104 mlt_properties properties = mlt_field_properties( field );
105 int registered = mlt_properties_get_int( properties, "registered" );
106 char *key = mlt_properties_get( properties, "registered" );
107 mlt_properties_set_data( properties, key, service, 0, destructor, NULL );
108 mlt_properties_set_int( properties, "registered", ++ registered );
111 mlt_filter create_filter( mlt_field field, char *id, int track )
113 char *arg = strchr( id, ':' );
116 mlt_filter filter = mlt_factory_filter( id, arg );
117 if ( filter != NULL )
119 mlt_field_plant_filter( field, filter, track );
120 track_service( field, filter, ( mlt_destructor )mlt_filter_close );
125 void set_properties( mlt_service service, char *namevalue )
127 mlt_properties properties = mlt_service_properties( service );
128 mlt_properties_parse( properties, namevalue );
131 void transport( mlt_producer producer )
133 mlt_properties properties = mlt_producer_properties( producer );
136 fprintf( stderr, "Press 'q' to continue\n" );
137 while( mlt_properties_get_int( properties, "done" ) == 0 )
139 int value = term_read( );
141 transport_action( producer, ( char * )&value );
145 int main( int argc, char **argv )
148 mlt_service service = NULL;
149 mlt_consumer consumer = NULL;
150 mlt_multitrack multitrack = NULL;
151 mlt_producer producer = NULL;
152 mlt_playlist playlist = NULL;
153 mlt_field field = NULL;
155 // Construct the factory
156 mlt_factory_init( getenv( "MLT_REPOSITORY" ) );
159 playlist = mlt_playlist_init( );
161 // Construct the field
162 field = mlt_field_init( );
164 // We need to track the number of registered filters
165 mlt_properties properties = mlt_field_properties( field );
166 mlt_properties_set_int( properties, "registered", 0 );
168 // Get the multitrack from the field
169 multitrack = mlt_field_multitrack( field );
171 // Parse the arguments
172 for ( i = 1; i < argc; i ++ )
174 if ( !strcmp( argv[ i ], "-consumer" ) )
176 consumer = create_consumer( argv[ ++ i ], mlt_multitrack_producer( multitrack ) );
177 if ( consumer != NULL )
178 service = mlt_consumer_service( consumer );
180 else if ( !strcmp( argv[ i ], "-filter" ) )
182 mlt_filter filter = create_filter( field, argv[ ++ i ], 0 );
183 if ( filter != NULL )
184 service = mlt_filter_service( filter );
186 else if ( !strstr( argv[ i ], "=" ) )
188 if ( producer != NULL )
189 mlt_playlist_append( playlist, producer );
190 producer = create_producer( argv[ i ] );
191 if ( producer != NULL )
192 service = mlt_producer_service( producer );
196 set_properties( service, argv[ i ] );
200 // If we have no consumer, default to sdl
201 if ( consumer == NULL )
202 consumer = create_consumer( "sdl", mlt_multitrack_producer( multitrack ) );
204 // Connect producer to playlist
205 if ( producer != NULL )
206 mlt_playlist_append( playlist, producer );
208 // Connect multitrack to producer
209 mlt_multitrack_connect( multitrack, mlt_playlist_producer( playlist ), 0 );
211 // Connect consumer to tractor
212 mlt_consumer_connect( consumer, mlt_field_service( field ) );
214 // Transport functionality
215 transport( mlt_multitrack_producer( multitrack ) );
217 // Close the services
218 mlt_consumer_close( consumer );
219 mlt_field_close( field );
220 mlt_producer_close( producer );
223 mlt_factory_close( );