#include "config.h"
#include "mlt_producer.h"
+#include "mlt_factory.h"
#include "mlt_frame.h"
#include <stdio.h>
#include <string.h>
int mlt_producer_init( mlt_producer this, void *child )
{
- // Initialise the producer
- memset( this, 0, sizeof( struct mlt_producer_s ) );
-
- // Associate with the child
- this->child = child;
+ // Check that we haven't received NULL
+ int error = this == NULL;
- // Initialise the service
- if ( mlt_service_init( &this->parent, this ) == 0 )
+ // Continue if no error
+ if ( error == 0 )
{
- // The parent is the service
- mlt_service parent = &this->parent;
-
- // Get the properties of the parent
- mlt_properties properties = mlt_service_properties( parent );
-
- // Set the default properties
- mlt_properties_set( properties, "mlt_type", "mlt_producer" );
- mlt_properties_set_position( properties, "position", 0.0 );
- mlt_properties_set_double( properties, "frame", 0 );
- mlt_properties_set_double( properties, "fps", 25.0 );
- mlt_properties_set_double( properties, "speed", 1.0 );
- mlt_properties_set_position( properties, "in", 0.0 );
- mlt_properties_set_position( properties, "out", 179999 );
- mlt_properties_set_position( properties, "length", 180000 );
- mlt_properties_set_double( properties, "aspect_ratio", 4.0 / 3.0 );
- mlt_properties_set( properties, "log_id", "multitrack" );
-
- // Override service get_frame
- parent->get_frame = producer_get_frame;
- }
+ // Initialise the producer
+ memset( this, 0, sizeof( struct mlt_producer_s ) );
+
+ // Associate with the child
+ this->child = child;
- return 0;
-}
+ // Initialise the service
+ if ( mlt_service_init( &this->parent, this ) == 0 )
+ {
+ // Get the normalisation preference
+ char *normalisation = mlt_environment( "MLT_NORMALISATION" );
-/** Get the parent service object.
-*/
+ // The parent is the service
+ mlt_service parent = &this->parent;
+
+ // Get the properties of the parent
+ mlt_properties properties = mlt_service_properties( parent );
+
+ // Set the default properties
+ mlt_properties_set( properties, "mlt_type", "mlt_producer" );
+ mlt_properties_set_position( properties, "_position", 0.0 );
+ mlt_properties_set_double( properties, "_frame", 0 );
+ if ( normalisation == NULL || strcmp( normalisation, "NTSC" ) )
+ {
+ mlt_properties_set_double( properties, "fps", 25.0 );
+ mlt_properties_set_double( properties, "aspect_ratio", 72.0 / 79.0 );
+ }
+ else
+ {
+ mlt_properties_set_double( properties, "fps", 30000.0 / 1001.0 );
+ mlt_properties_set_double( properties, "aspect_ratio", 128.0 / 117.0 );
+ }
+ mlt_properties_set_double( properties, "_speed", 1.0 );
+ mlt_properties_set_position( properties, "in", 0 );
+ mlt_properties_set_position( properties, "out", 14999 );
+ mlt_properties_set_position( properties, "length", 15000 );
+ mlt_properties_set( properties, "eof", "pause" );
+ mlt_properties_set( properties, "resource", "<producer>" );
+
+ // Override service get_frame
+ parent->get_frame = producer_get_frame;
+ }
+ }
-mlt_service mlt_producer_service( mlt_producer this )
-{
- return &this->parent;
+ return error;
}
-/** Get the producer properties.
+/** Create a new producer.
*/
-mlt_properties mlt_producer_properties( mlt_producer this )
+mlt_producer mlt_producer_new( )
{
- return mlt_service_properties( &this->parent );
+ mlt_producer this = malloc( sizeof( struct mlt_producer_s ) );
+ mlt_producer_init( this, NULL );
+ return this;
}
-/** Convert frame position to position.
+/** Get the parent service object.
*/
-/*
-mlt_position mlt_producer_time( mlt_producer this, int64_t frame )
+mlt_service mlt_producer_service( mlt_producer this )
{
- if ( frame < 0 )
- return -1;
- else
- return ( mlt_position )frame / mlt_producer_get_fps( this );
+ return &this->parent;
}
-*/
-/** Convert position to frame position.
+/** Get the producer properties.
*/
-/*
-int64_t mlt_producer_frame_position( mlt_producer this, mlt_position position )
+mlt_properties mlt_producer_properties( mlt_producer this )
{
- if ( position < 0 )
- return -1;
- else
- return ( int64_t )( floor( position * mlt_producer_get_fps( this ) + 0.5 ) );
+ return mlt_service_properties( &this->parent );
}
-*/
/** Seek to a specified position.
*/
int mlt_producer_seek( mlt_producer this, mlt_position position )
{
+ // Determine eof handling
+ char *eof = mlt_properties_get( mlt_producer_properties( this ), "eof" );
+ int use_points = 1 - mlt_properties_get_int( mlt_producer_properties( this ), "ignore_points" );
+
// Check bounds
if ( position < 0 )
+ {
position = 0;
- else if ( position > mlt_producer_get_playtime( this ) )
+ }
+ else if ( use_points && !strcmp( eof, "pause" ) && position >= mlt_producer_get_playtime( this ) )
+ {
+ mlt_producer_set_speed( this, 0 );
position = mlt_producer_get_playtime( this ) - 1;
+ }
+ else if ( use_points && !strcmp( eof, "loop" ) && position >= mlt_producer_get_playtime( this ) )
+ {
+ position = position % mlt_producer_get_playtime( this );
+ }
// Set the position
- mlt_properties_set_position( mlt_producer_properties( this ), "position", position );
+ mlt_properties_set_position( mlt_producer_properties( this ), "_position", position );
// Calculate the absolute frame
- mlt_properties_set_position( mlt_producer_properties( this ), "frame", mlt_producer_get_in( this ) + position );
+ mlt_properties_set_position( mlt_producer_properties( this ), "_frame", use_points * mlt_producer_get_in( this ) + position );
return 0;
}
mlt_position mlt_producer_position( mlt_producer this )
{
- return mlt_properties_get_position( mlt_producer_properties( this ), "position" );
+ return mlt_properties_get_position( mlt_producer_properties( this ), "_position" );
}
/** Get the current position (relative to start of producer).
mlt_position mlt_producer_frame( mlt_producer this )
{
- return mlt_properties_get_double( mlt_producer_properties( this ), "frame" );
+ return mlt_properties_get_position( mlt_producer_properties( this ), "_frame" );
}
/** Set the playing speed.
int mlt_producer_set_speed( mlt_producer this, double speed )
{
- return mlt_properties_set_double( mlt_producer_properties( this ), "speed", speed );
+ return mlt_properties_set_double( mlt_producer_properties( this ), "_speed", speed );
}
/** Get the playing speed.
double mlt_producer_get_speed( mlt_producer this )
{
- return mlt_properties_get_double( mlt_producer_properties( this ), "speed" );
+ return mlt_properties_get_double( mlt_producer_properties( this ), "_speed" );
}
/** Get the frames per second.
void mlt_producer_prepare_next( mlt_producer this )
{
- mlt_producer_seek( this, mlt_producer_frame( this ) + mlt_producer_get_speed( this ) );
+ mlt_producer_seek( this, mlt_producer_position( this ) + mlt_producer_get_speed( this ) );
}
/** Get a frame.
int result = 1;
mlt_producer this = service->child;
+ // Determine eof handling
+ char *eof = mlt_properties_get( mlt_producer_properties( this ), "eof" );
+
// A properly instatiated producer will have a get_frame method...
- if ( this->get_frame != NULL )
- {
- // Get the frame from the implementation
- result = this->get_frame( this, frame, index );
- }
- else
+ if ( this->get_frame == NULL || ( !strcmp( eof, "continue" ) && mlt_producer_position( this ) > mlt_producer_get_out( this ) ) )
{
// Generate a test frame
*frame = mlt_frame_init( );
// Set the position
result = mlt_frame_set_position( *frame, mlt_producer_position( this ) );
+ // Mark as a test card
+ mlt_properties_set_int( mlt_frame_properties( *frame ), "test_image", 1 );
+ mlt_properties_set_int( mlt_frame_properties( *frame ), "test_audio", 1 );
+
// Calculate the next position
mlt_producer_prepare_next( this );
}
+ else
+ {
+ // Get the frame from the implementation
+ result = this->get_frame( this, frame, index );
+ }
// Copy the fps and speed of the producer onto the frame
mlt_properties properties = mlt_frame_properties( *frame );
mlt_properties_set_double( properties, "fps", mlt_producer_get_fps( this ) );
double speed = mlt_producer_get_speed( this );
- mlt_properties_set_double( properties, "speed", speed );
+ mlt_properties_set_double( properties, "_speed", speed );
return 0;
}
projects / melted / blobdiff