mlt_multitrack mlt_multitrack_init( )
{
// Allocate the multitrack object
mlt_multitrack this = calloc( sizeof( struct mlt_multitrack_s ), 1 );
if ( this != NULL )
{
mlt_producer producer = &this->parent;
if ( mlt_producer_init( producer, this ) == 0 )
{
mlt_properties properties = MLT_MULTITRACK_PROPERTIES( this );
producer->get_frame = producer_get_frame;
mlt_properties_set_data( properties, "multitrack", this, 0, NULL, NULL );
mlt_properties_set( properties, "log_id", "multitrack" );
mlt_properties_set( properties, "resource", "<multitrack>" );
mlt_properties_set_int( properties, "in", 0 );
mlt_properties_set_int( properties, "out", -1 );
mlt_properties_set_int( properties, "length", 0 );
producer->close = ( mlt_destructor )mlt_multitrack_close;
}
else
{
free( this );
this = NULL;
}
}
return this;
}
mlt_producer producer_vorbis_init( mlt_profile profile, mlt_service_type type, const char *id, char *file )
{
mlt_producer this = NULL;
// Check that we have a non-NULL argument
if ( file != NULL )
{
// Construct the producer
this = calloc( 1, sizeof( struct mlt_producer_s ) );
// Initialise it
if ( mlt_producer_init( this, NULL ) == 0 )
{
// Get the properties
mlt_properties properties = MLT_PRODUCER_PROPERTIES( this );
// Set the resource property (required for all producers)
mlt_properties_set( properties, "resource", file );
// Register our get_frame implementation
this->get_frame = producer_get_frame;
// Open the file
if ( producer_open( this, profile, file ) != 0 )
{
// Clean up
mlt_producer_close( this );
this = NULL;
}
}
}
return this;
}
mlt_multitrack mlt_multitrack_init( )
{
// Allocate the multitrack object
mlt_multitrack self = calloc( 1, sizeof( struct mlt_multitrack_s ) );
if ( self != NULL )
{
mlt_producer producer = &self->parent;
if ( mlt_producer_init( producer, self ) == 0 )
{
mlt_properties properties = MLT_MULTITRACK_PROPERTIES( self );
producer->get_frame = producer_get_frame;
mlt_properties_set_data( properties, "multitrack", self, 0, NULL, NULL );
mlt_properties_set( properties, "log_id", "multitrack" );
mlt_properties_set( properties, "resource", "<multitrack>" );
mlt_properties_set_int( properties, "in", 0 );
mlt_properties_set_int( properties, "out", -1 );
mlt_properties_set_int( properties, "length", 0 );
producer->close = ( mlt_destructor )mlt_multitrack_close;
}
else
{
free( self );
self = NULL;
}
}
return self;
}
mlt_producer producer_ppm_init( mlt_profile profile, mlt_service_type type, const char *id, char *command )
{
producer_ppm this = calloc( sizeof( struct producer_ppm_s ), 1 );
if ( this != NULL && mlt_producer_init( &this->parent, this ) == 0 )
{
mlt_producer producer = &this->parent;
mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
producer->get_frame = producer_get_frame;
producer->close = ( mlt_destructor )producer_close;
if ( command != NULL )
{
mlt_properties_set( properties, "resource", command );
this->command = strdup( command );
}
else
{
mlt_properties_set( properties, "resource", "ppm test" );
}
return producer;
}
free( this );
return NULL;
}
mlt_tractor mlt_tractor_init( )
{
mlt_tractor self = calloc( 1, sizeof( struct mlt_tractor_s ) );
if ( self != NULL )
{
mlt_producer producer = &self->parent;
if ( mlt_producer_init( producer, self ) == 0 )
{
mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
mlt_properties_set( properties, "resource", "<tractor>" );
mlt_properties_set( properties, "mlt_type", "mlt_producer" );
mlt_properties_set( properties, "mlt_service", "tractor" );
mlt_properties_set_int( properties, "in", 0 );
mlt_properties_set_int( properties, "out", -1 );
mlt_properties_set_int( properties, "length", 0 );
producer->get_frame = producer_get_frame;
producer->close = ( mlt_destructor )mlt_tractor_close;
producer->close_object = self;
}
else
{
free( self );
self = NULL;
}
}
return self;
}
mlt_tractor mlt_tractor_new( )
{
mlt_tractor self = calloc( 1, sizeof( struct mlt_tractor_s ) );
if ( self != NULL )
{
mlt_producer producer = &self->parent;
if ( mlt_producer_init( producer, self ) == 0 )
{
mlt_multitrack multitrack = mlt_multitrack_init( );
mlt_field field = mlt_field_new( multitrack, self );
mlt_properties props = MLT_PRODUCER_PROPERTIES( producer );
mlt_properties_set( props, "resource", "<tractor>" );
mlt_properties_set( props, "mlt_type", "mlt_producer" );
mlt_properties_set( props, "mlt_service", "tractor" );
mlt_properties_set_position( props, "in", 0 );
mlt_properties_set_position( props, "out", 0 );
mlt_properties_set_position( props, "length", 0 );
mlt_properties_set_data( props, "multitrack", multitrack, 0, ( mlt_destructor )mlt_multitrack_close, NULL );
mlt_properties_set_data( props, "field", field, 0, ( mlt_destructor )mlt_field_close, NULL );
mlt_events_listen( MLT_MULTITRACK_PROPERTIES( multitrack ), self, "producer-changed", ( mlt_listener )mlt_tractor_listener );
producer->get_frame = producer_get_frame;
producer->close = ( mlt_destructor )mlt_tractor_close;
producer->close_object = self;
}
else
{
free( self );
self = NULL;
}
}
return self;
}
mlt_producer mlt_producer_new( mlt_profile profile )
{
mlt_producer self = malloc( sizeof( struct mlt_producer_s ) );
if ( self )
{
if ( mlt_producer_init( self, NULL ) == 0 )
{
mlt_properties_set_data( MLT_PRODUCER_PROPERTIES( self ), "_profile", profile, 0, NULL, NULL );
mlt_properties_set_double( MLT_PRODUCER_PROPERTIES( self ), "aspect_ratio", mlt_profile_sar( profile ) );
}
}
return self;
}
mlt_producer producer_qimage_init( mlt_profile profile, mlt_service_type type, const char *id, char *filename )
{
producer_qimage self = calloc( sizeof( struct producer_qimage_s ), 1 );
if ( self != NULL && mlt_producer_init( &self->parent, self ) == 0 )
{
mlt_producer producer = &self->parent;
// Get the properties interface
mlt_properties properties = MLT_PRODUCER_PROPERTIES( &self->parent );
// Callback registration
#ifdef USE_KDE
init_qimage();
#endif
producer->get_frame = producer_get_frame;
producer->close = ( mlt_destructor )producer_close;
// Set the default properties
mlt_properties_set( properties, "resource", filename );
mlt_properties_set_int( properties, "ttl", 25 );
mlt_properties_set_int( properties, "aspect_ratio", 1 );
mlt_properties_set_int( properties, "progressive", 1 );
mlt_properties_set_int( properties, "seekable", 1 );
// Validate the resource
if ( filename )
load_filenames( self, properties );
if ( self->count )
{
mlt_frame frame = mlt_frame_init( MLT_PRODUCER_SERVICE( producer ) );
if ( frame )
{
mlt_properties frame_properties = MLT_FRAME_PROPERTIES( frame );
mlt_properties_set_data( frame_properties, "producer_qimage", self, 0, NULL, NULL );
mlt_frame_set_position( frame, mlt_producer_position( producer ) );
mlt_properties_set_position( frame_properties, "qimage_position", mlt_producer_position( producer ) );
refresh_qimage( self, frame );
mlt_cache_item_close( self->qimage_cache );
mlt_frame_close( frame );
}
}
if ( self->current_width == 0 )
{
producer_close( producer );
producer = NULL;
}
return producer;
}
free( self );
return NULL;
}
mlt_producer producer_pixbuf_init( char *filename )
{
producer_pixbuf self = calloc( 1, sizeof( struct producer_pixbuf_s ) );
if ( self != NULL && mlt_producer_init( &self->parent, self ) == 0 )
{
mlt_producer producer = &self->parent;
// Get the properties interface
mlt_properties properties = MLT_PRODUCER_PROPERTIES( &self->parent );
// Callback registration
producer->get_frame = producer_get_frame;
producer->close = ( mlt_destructor )producer_close;
// Set the default properties
mlt_properties_set( properties, "resource", filename );
mlt_properties_set_int( properties, "ttl", 25 );
mlt_properties_set_int( properties, "aspect_ratio", 1 );
mlt_properties_set_int( properties, "progressive", 1 );
mlt_properties_set_int( properties, "seekable", 1 );
mlt_properties_set_int( properties, "loop", 1 );
// Validate the resource
if ( filename )
load_filenames( self, properties );
if ( self->count )
{
mlt_frame frame = mlt_frame_init( MLT_PRODUCER_SERVICE( producer ) );
if ( frame )
{
mlt_properties frame_properties = MLT_FRAME_PROPERTIES( frame );
mlt_properties_set_data( frame_properties, "producer_pixbuf", self, 0, NULL, NULL );
mlt_frame_set_position( frame, mlt_producer_position( producer ) );
refresh_pixbuf( self, frame );
mlt_cache_item_close( self->pixbuf_cache );
mlt_frame_close( frame );
}
}
if ( self->width == 0 )
{
producer_close( producer );
producer = NULL;
}
return producer;
}
free( self );
return NULL;
}
mlt_producer producer_pixbuf_init( char *filename )
{
producer_pixbuf this = calloc( sizeof( struct producer_pixbuf_s ), 1 );
if ( this != NULL && mlt_producer_init( &this->parent, this ) == 0 )
{
mlt_producer producer = &this->parent;
// Get the properties interface
mlt_properties properties = MLT_PRODUCER_PROPERTIES( &this->parent );
// Callback registration
producer->get_frame = producer_get_frame;
producer->close = ( mlt_destructor )producer_close;
// Set the default properties
mlt_properties_set( properties, "resource", filename );
mlt_properties_set_int( properties, "ttl", 25 );
mlt_properties_set_int( properties, "aspect_ratio", 1 );
mlt_properties_set_int( properties, "progressive", 1 );
// Validate the resource
if ( filename )
load_filenames( this, properties );
if ( this->count )
{
mlt_frame frame = mlt_frame_init( MLT_PRODUCER_SERVICE( producer ) );
if ( frame )
{
mlt_properties frame_properties = MLT_FRAME_PROPERTIES( frame );
pthread_mutex_init( &this->mutex, NULL );
mlt_properties_set_data( frame_properties, "producer_pixbuf", this, 0, NULL, NULL );
mlt_frame_set_position( frame, mlt_producer_position( producer ) );
mlt_properties_set_position( frame_properties, "pixbuf_position", mlt_producer_position( producer ) );
refresh_image( this, frame, 0, 0 );
mlt_frame_close( frame );
}
}
if ( this->width == 0 )
{
producer_close( producer );
producer = NULL;
}
return producer;
}
free( this );
return NULL;
}
mlt_producer producer_kino_init( mlt_profile profile, mlt_service_type type, const char *id, char *filename )
{
kino_wrapper wrapper = kino_wrapper_init( );
if ( kino_wrapper_open( wrapper, filename ) )
{
producer_kino this = calloc( 1, sizeof( struct producer_kino_s ) );
if ( this != NULL && mlt_producer_init( &this->parent, this ) == 0 )
{
mlt_producer producer = &this->parent;
mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
double fps = kino_wrapper_is_pal( wrapper ) ? 25 : 30000.0 / 1001.0;
// Assign the wrapper
this->wrapper = wrapper;
// Pass wrapper properties (frame rate, count etc)
mlt_properties_set_position( properties, "length", kino_wrapper_get_frame_count( wrapper ) );
mlt_properties_set_position( properties, "in", 0 );
mlt_properties_set_position( properties, "out", kino_wrapper_get_frame_count( wrapper ) - 1 );
mlt_properties_set_double( properties, "real_fps", fps );
mlt_properties_set( properties, "resource", filename );
// Register transport implementation with the producer
producer->close = ( mlt_destructor )producer_close;
// Register our get_frame implementation with the producer
producer->get_frame = producer_get_frame;
// Return the producer
return producer;
}
free( this );
}
kino_wrapper_close( wrapper );
return NULL;
}
mlt_producer producer_colour_init( mlt_profile profile, mlt_service_type type, const char *id, char *colour )
{
mlt_producer producer = calloc( 1, sizeof( struct mlt_producer_s ) );
if ( producer != NULL && mlt_producer_init( producer, NULL ) == 0 )
{
// Get the properties interface
mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
// Callback registration
producer->get_frame = producer_get_frame;
producer->close = ( mlt_destructor )producer_close;
// Set the default properties
mlt_properties_set( properties, "resource", ( !colour || !strcmp( colour, "" ) ) ? "0x000000ff" : colour );
mlt_properties_set( properties, "_resource", "" );
mlt_properties_set_double( properties, "aspect_ratio", mlt_profile_sar( profile ) );
return producer;
}
free( producer );
return NULL;
}
mlt_producer producer_decklink_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg )
{
// Allocate the producer
DeckLinkProducer* decklink = new DeckLinkProducer();
mlt_producer producer = (mlt_producer) calloc( 1, sizeof( *producer ) );
// If allocated and initializes
if ( decklink && !mlt_producer_init( producer, decklink ) )
{
if ( decklink->open( arg? atoi( arg ) : 0 ) )
{
mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
// Close DeckLink and defer re-open to get_frame
delete decklink;
producer->child = NULL;
// Set callbacks
producer->close = (mlt_destructor) producer_close;
producer->get_frame = get_frame;
// Set properties
mlt_properties_set( properties, "resource", (arg && strcmp( arg, ""))? arg : "0" );
mlt_properties_set_int( properties, "channels", 2 );
mlt_properties_set_int( properties, "buffer", 25 );
mlt_properties_set_int( properties, "prefill", 25 );
// These properties effectively make it infinite.
mlt_properties_set_int( properties, "length", INT_MAX );
mlt_properties_set_int( properties, "out", INT_MAX - 1 );
mlt_properties_set( properties, "eof", "loop" );
mlt_event event = mlt_events_listen( properties, properties, "property-changed", (mlt_listener) on_property_changed );
mlt_properties_set_data( properties, "list-devices-event", event, 0, NULL, NULL );
}
}
return producer;
}
mlt_producer producer_kdenlivetitle_init( mlt_profile profile, mlt_service_type type, const char *id, char *filename )
{
/* fprintf(stderr, ":::::::::::: CREATE TITLE\n"); */
/* Create a new producer object */
producer_ktitle this = calloc( sizeof( struct producer_ktitle_s ), 1 );
if ( this != NULL && mlt_producer_init( &this->parent, this ) == 0 )
{
mlt_producer producer = &this->parent;
/* Get the properties interface */
mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
/* Callback registration */
producer->get_frame = producer_get_frame;
producer->close = ( mlt_destructor )producer_close;
mlt_properties_set( properties, "resource", filename );
//mlt_properties_set_int( properties, "aspect_ratio", 1 );
read_xml(properties);
return producer;
}
free( this );
return NULL;
}
mlt_producer producer_kdenlivetitle_init( mlt_profile profile, mlt_service_type type, const char *id, char *filename )
{
/* Create a new producer object */
producer_ktitle self = calloc( 1, sizeof( struct producer_ktitle_s ) );
if ( self != NULL && mlt_producer_init( &self->parent, self ) == 0 )
{
mlt_producer producer = &self->parent;
/* Get the properties interface */
mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
/* Callback registration */
producer->get_frame = producer_get_frame;
producer->close = ( mlt_destructor )producer_close;
mlt_properties_set( properties, "resource", filename );
mlt_properties_set_int( properties, "progressive", 1 );
mlt_properties_set_int( properties, "aspect_ratio", 1 );
mlt_properties_set_int( properties, "seekable", 1 );
read_xml(properties);
return producer;
}
free( self );
return NULL;
}
mlt_producer producer_framebuffer_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg )
{
if ( !arg ) return NULL;
mlt_producer producer = NULL;
producer = calloc( 1, sizeof( struct mlt_producer_s ) );
mlt_producer_init( producer, NULL );
// Wrap loader
mlt_producer real_producer;
// Check if a speed was specified.
/**
* Speed must be appended to the filename with '?'. To play your video at 50%:
melt framebuffer:my_video.mpg?0.5
* Stroboscope effect can be obtained by adding a stobe=x parameter, where
x is the number of frames that will be ignored.
* You can play the movie backwards by adding reverse=1
* You can freeze the clip at a determined position by adding freeze=frame_pos
add freeze_after=1 to freeze only paste position or freeze_before to freeze before it
**/
double speed = 0.0;
char *props = strdup( arg );
char *ptr = strrchr( props, '?' );
if ( ptr )
{
speed = atof( ptr + 1 );
if ( speed != 0.0 )
// If speed was valid, then strip it and the delimiter.
// Otherwise, an invalid speed probably means this '?' was not a delimiter.
*ptr = '\0';
}
real_producer = mlt_factory_producer( profile, "abnormal", props );
free( props );
if (speed == 0.0) speed = 1.0;
if ( producer != NULL && real_producer != NULL)
{
// Get the properties of this producer
mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
mlt_properties_set( properties, "resource", arg);
// Store the producer and fitler
mlt_properties_set_data( properties, "producer", real_producer, 0, ( mlt_destructor )mlt_producer_close, NULL );
// Grab some stuff from the real_producer
mlt_properties_pass_list( properties, MLT_PRODUCER_PROPERTIES( real_producer ), "length, width, height, aspect_ratio" );
if ( speed < 0 )
{
speed = -speed;
mlt_properties_set_int( properties, "reverse", 1 );
}
if ( speed != 1.0 )
{
double real_length = ( (double) mlt_producer_get_length( real_producer ) ) / speed;
mlt_properties_set_position( properties, "length", real_length );
}
mlt_properties_set_position( properties, "out", mlt_producer_get_length( producer ) - 1 );
// Since we control the seeking, prevent it from seeking on its own
mlt_producer_set_speed( real_producer, 0 );
mlt_producer_set_speed( producer, speed );
// Override the get_frame method
producer->get_frame = producer_get_frame;
}
else
{
if ( producer )
mlt_producer_close( producer );
if ( real_producer )
mlt_producer_close( real_producer );
producer = NULL;
}
return producer;
}
mlt_producer producer_pango_init( const char *filename )
{
producer_pango this = calloc( sizeof( struct producer_pango_s ), 1 );
if ( this != NULL && mlt_producer_init( &this->parent, this ) == 0 )
{
mlt_producer producer = &this->parent;
pthread_mutex_lock( &pango_mutex );
if ( fontmap == NULL )
fontmap = (PangoFT2FontMap*) pango_ft2_font_map_new();
g_type_init();
pthread_mutex_unlock( &pango_mutex );
producer->get_frame = producer_get_frame;
producer->close = ( mlt_destructor )producer_close;
// Get the properties interface
mlt_properties properties = MLT_PRODUCER_PROPERTIES( &this->parent );
// Set the default properties
mlt_properties_set( properties, "fgcolour", "0xffffffff" );
mlt_properties_set( properties, "bgcolour", "0x00000000" );
mlt_properties_set( properties, "olcolour", "0x00000000" );
mlt_properties_set_int( properties, "align", pango_align_left );
mlt_properties_set_int( properties, "pad", 0 );
mlt_properties_set_int( properties, "outline", 0 );
mlt_properties_set( properties, "text", "" );
mlt_properties_set( properties, "font", NULL );
mlt_properties_set( properties, "family", "Sans" );
mlt_properties_set_int( properties, "size", 48 );
mlt_properties_set( properties, "style", "normal" );
mlt_properties_set( properties, "encoding", "UTF-8" );
mlt_properties_set_int( properties, "weight", PANGO_WEIGHT_NORMAL );
mlt_properties_set_int( properties, "seekable", 1 );
if ( filename == NULL || ( filename && ( !strcmp( filename, "" )
// workaround for old kdenlive countdown generator
|| strstr( filename, "<producer>" ) ) ) )
{
mlt_properties_set( properties, "markup", "" );
}
else if ( filename[ 0 ] == '+' || strstr( filename, "/+" ) )
{
char *copy = strdup( filename + 1 );
char *markup = copy;
if ( strstr( markup, "/+" ) )
markup = strstr( markup, "/+" ) + 2;
( *strrchr( markup, '.' ) ) = '\0';
while ( strchr( markup, '~' ) )
( *strchr( markup, '~' ) ) = '\n';
mlt_properties_set( properties, "resource", filename );
mlt_properties_set( properties, "markup", markup );
free( copy );
}
else if ( strstr( filename, ".mpl" ) )
{
int i = 0;
mlt_properties contents = mlt_properties_load( filename );
mlt_geometry key_frames = mlt_geometry_init( );
struct mlt_geometry_item_s item;
mlt_properties_set( properties, "resource", filename );
mlt_properties_set_data( properties, "contents", contents, 0, ( mlt_destructor )mlt_properties_close, NULL );
mlt_properties_set_data( properties, "key_frames", key_frames, 0, ( mlt_destructor )mlt_geometry_close, NULL );
// Make sure we have at least one entry
if ( mlt_properties_get( contents, "0" ) == NULL )
mlt_properties_set( contents, "0", "" );
for ( i = 0; i < mlt_properties_count( contents ); i ++ )
{
char *name = mlt_properties_get_name( contents, i );
char *value = mlt_properties_get_value( contents, i );
while ( value != NULL && strchr( value, '~' ) )
( *strchr( value, '~' ) ) = '\n';
item.frame = atoi( name );
mlt_geometry_insert( key_frames, &item );
}
mlt_geometry_interpolate( key_frames );
}
else
{
FILE *f = fopen( filename, "r" );
if ( f != NULL )
{
char line[81];
char *markup = NULL;
size_t size = 0;
line[80] = '\0';
while ( fgets( line, 80, f ) )
{
size += strlen( line ) + 1;
if ( markup )
{
markup = realloc( markup, size );
strcat( markup, line );
}
else
{
markup = strdup( line );
}
}
fclose( f );
if ( markup[ strlen( markup ) - 1 ] == '\n' )
markup[ strlen( markup ) - 1 ] = '\0';
mlt_properties_set( properties, "resource", filename );
mlt_properties_set( properties, "markup", ( markup == NULL ? "" : markup ) );
free( markup );
}
else
{
producer->close = NULL;
mlt_producer_close( producer );
producer = NULL;
free( this );
}
}
return producer;
}
free( this );
return NULL;
}
mlt_producer producer_avformat_init( mlt_profile profile, char *file )
{
int error = 0;
// Report information about available demuxers and codecs as YAML Tiny
if ( file && strstr( file, "f-list" ) )
{
fprintf( stderr, "---\nformats:\n" );
AVInputFormat *format = NULL;
while ( ( format = av_iformat_next( format ) ) )
fprintf( stderr, " - %s\n", format->name );
fprintf( stderr, "...\n" );
error = 1;
}
if ( file && strstr( file, "acodec-list" ) )
{
fprintf( stderr, "---\naudio_codecs:\n" );
AVCodec *codec = NULL;
while ( ( codec = av_codec_next( codec ) ) )
if ( codec->decode && codec->type == CODEC_TYPE_AUDIO )
fprintf( stderr, " - %s\n", codec->name );
fprintf( stderr, "...\n" );
error = 1;
}
if ( file && strstr( file, "vcodec-list" ) )
{
fprintf( stderr, "---\nvideo_codecs:\n" );
AVCodec *codec = NULL;
while ( ( codec = av_codec_next( codec ) ) )
if ( codec->decode && codec->type == CODEC_TYPE_VIDEO )
fprintf( stderr, " - %s\n", codec->name );
fprintf( stderr, "...\n" );
error = 1;
}
if ( error )
return NULL;
mlt_producer this = NULL;
// Check that we have a non-NULL argument
if ( file != NULL )
{
// Construct the producer
this = calloc( 1, sizeof( struct mlt_producer_s ) );
// Initialise it
if ( mlt_producer_init( this, NULL ) == 0 )
{
// Get the properties
mlt_properties properties = MLT_PRODUCER_PROPERTIES( this );
// Set the resource property (required for all producers)
mlt_properties_set( properties, "resource", file );
// Register our get_frame implementation
this->get_frame = producer_get_frame;
// Open the file
if ( producer_open( this, profile, file ) != 0 )
{
// Clean up
mlt_producer_close( this );
this = NULL;
}
else
{
// Close the file to release resources for large playlists - reopen later as needed
mlt_properties_set_data( properties, "dummy_context", NULL, 0, NULL, NULL );
mlt_properties_set_data( properties, "audio_context", NULL, 0, NULL, NULL );
mlt_properties_set_data( properties, "video_context", NULL, 0, NULL, NULL );
// Default the user-selectable indices from the auto-detected indices
mlt_properties_set_int( properties, "audio_index", mlt_properties_get_int( properties, "_audio_index" ) );
mlt_properties_set_int( properties, "video_index", mlt_properties_get_int( properties, "_video_index" ) );
}
}
}
return this;
}