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
);
40 void transport_action( mlt_producer producer
, char *value
)
42 mlt_properties properties
= mlt_producer_properties( producer
);
47 mlt_properties_set_int( properties
, "done", 1 );
50 mlt_producer_set_speed( producer
, 1 );
51 mlt_producer_seek( producer
, 0 );
54 mlt_producer_set_speed( producer
, -5 );
57 mlt_producer_set_speed( producer
, -2.5 );
60 mlt_producer_set_speed( producer
, -1 );
63 mlt_producer_set_speed( producer
, -0.5 );
66 mlt_producer_set_speed( producer
, 0 );
69 mlt_producer_set_speed( producer
, 0.5 );
72 mlt_producer_set_speed( producer
, 1 );
75 mlt_producer_set_speed( producer
, 2.5 );
78 mlt_producer_set_speed( producer
, 5 );
83 mlt_consumer
create_consumer( char *id
, mlt_producer producer
)
85 char *arg
= strchr( id
, ':' );
88 mlt_consumer consumer
= mlt_factory_consumer( id
, arg
);
89 if ( consumer
!= NULL
)
91 mlt_properties properties
= mlt_consumer_properties( consumer
);
92 mlt_properties_set_data( properties
, "transport_callback", transport_action
, 0, NULL
, NULL
);
93 mlt_properties_set_data( properties
, "transport_producer", producer
, 0, NULL
, NULL
);
98 void track_service( mlt_field field
, void *service
, mlt_destructor destructor
)
100 mlt_properties properties
= mlt_field_properties( field
);
101 int registered
= mlt_properties_get_int( properties
, "registered" );
102 char *key
= mlt_properties_get( properties
, "registered" );
103 mlt_properties_set_data( properties
, key
, service
, 0, destructor
, NULL
);
104 mlt_properties_set_int( properties
, "registered", ++ registered
);
107 mlt_filter
create_filter( mlt_field field
, char *id
, int track
)
109 char *arg
= strchr( id
, ':' );
112 mlt_filter filter
= mlt_factory_filter( id
, arg
);
113 if ( filter
!= NULL
)
115 mlt_field_plant_filter( field
, filter
, track
);
116 track_service( field
, filter
, ( mlt_destructor
)mlt_filter_close
);
121 void set_properties( mlt_service service
, char *namevalue
)
123 mlt_properties properties
= mlt_service_properties( service
);
124 mlt_properties_parse( properties
, namevalue
);
127 void transport( mlt_producer producer
)
129 mlt_properties properties
= mlt_producer_properties( producer
);
131 fprintf( stderr
, "Press 'q' to continue\n" );
133 while( mlt_properties_get_int( properties
, "done" ) == 0 )
135 char value
= get_keypress( );
136 transport_action( producer
, &value
);
140 int main( int argc
, char **argv
)
143 mlt_service service
= NULL
;
144 mlt_consumer consumer
= NULL
;
145 mlt_multitrack multitrack
= NULL
;
146 mlt_producer producer
= NULL
;
147 mlt_playlist playlist
= NULL
;
148 mlt_field field
= NULL
;
150 // Construct the factory
151 mlt_factory_init( getenv( "MLT_REPOSITORY" ) );
154 playlist
= mlt_playlist_init( );
156 // Construct the field
157 field
= mlt_field_init( );
158 mlt_properties properties
= mlt_field_properties( field
);
159 mlt_properties_set_int( properties
, "registered", 0 );
161 // Get the multitrack from the field
162 multitrack
= mlt_field_multitrack( field
);
164 // Parse the arguments
165 for ( i
= 1; i
< argc
; i
++ )
167 if ( !strcmp( argv
[ i
], "-consumer" ) )
169 consumer
= create_consumer( argv
[ ++ i
], mlt_multitrack_producer( multitrack
) );
170 if ( consumer
!= NULL
)
171 service
= mlt_consumer_service( consumer
);
173 else if ( !strcmp( argv
[ i
], "-filter" ) )
175 mlt_filter filter
= create_filter( field
, argv
[ ++ i
], 0 );
176 if ( filter
!= NULL
)
177 service
= mlt_filter_service( filter
);
179 else if ( !strstr( argv
[ i
], "=" ) )
181 if ( producer
!= NULL
)
182 mlt_playlist_append( playlist
, producer
);
183 producer
= create_producer( argv
[ i
] );
184 if ( producer
!= NULL
)
185 service
= mlt_producer_service( producer
);
189 set_properties( service
, argv
[ i
] );
193 // If we have no consumer, default to sdl
194 if ( consumer
== NULL
)
195 consumer
= create_consumer( "sdl:PAL", mlt_multitrack_producer( multitrack
) );
197 // Connect producer to playlist
198 if ( producer
!= NULL
)
199 mlt_playlist_append( playlist
, producer
);
201 // Connect multitrack to producer
202 mlt_multitrack_connect( multitrack
, mlt_playlist_producer( playlist
), 0 );
204 // Connect consumer to tractor
205 mlt_consumer_connect( consumer
, mlt_field_service( field
) );
207 // Transport functionality
208 transport( mlt_multitrack_producer( multitrack
) );
210 // Close the services
211 mlt_consumer_close( consumer
);
212 mlt_field_close( field
);
213 mlt_producer_close( producer
);
216 mlt_factory_close( );