double mlt_transition_get_progress_delta( mlt_transition self, mlt_frame frame )
{
double progress = 0;
mlt_position in = mlt_transition_get_in( self );
mlt_position out = mlt_transition_get_out( self );
if ( out == 0 )
{
// If always active, use the frame's producer
mlt_producer producer = mlt_frame_get_original_producer( frame );
if ( producer )
{
in = mlt_producer_get_in( producer );
out = mlt_producer_get_out( producer );
}
}
if ( out != 0 )
{
mlt_position position = mlt_frame_get_position( frame );
double length = out - in + 1;
double x = ( double ) ( position - in ) / length;
double y = ( double ) ( position + 1 - in ) / length;
progress = ( y - x ) / 2.0;
}
return progress;
}
int mlt_producer_seek( mlt_producer self, mlt_position position )
{
// Determine eof handling
mlt_properties properties = MLT_PRODUCER_PROPERTIES( self );
char *eof = mlt_properties_get( properties, "eof" );
int use_points = 1 - mlt_properties_get_int( properties, "ignore_points" );
// Recursive behaviour for cuts - repositions parent and then repositions cut
// hence no return on this condition
if ( mlt_producer_is_cut( self ) )
mlt_producer_seek( mlt_producer_cut_parent( self ), position + mlt_producer_get_in( self ) );
// Check bounds
if ( position < 0 || mlt_producer_get_playtime( self ) == 0 )
{
position = 0;
}
else if ( use_points && ( eof == NULL || !strcmp( eof, "pause" ) ) && position >= mlt_producer_get_playtime( self ) )
{
mlt_producer_set_speed( self, 0 );
position = mlt_producer_get_playtime( self ) - 1;
}
else if ( use_points && eof && !strcmp( eof, "loop" ) && position >= mlt_producer_get_playtime( self ) )
{
position = (int)position % (int)mlt_producer_get_playtime( self );
}
// Set the position
mlt_properties_set_position( MLT_PRODUCER_PROPERTIES( self ), "_position", position );
// Calculate the absolute frame
mlt_properties_set_position( MLT_PRODUCER_PROPERTIES( self ), "_frame", use_points * mlt_producer_get_in( self ) + position );
return 0;
}
static int producer_get_image( mlt_frame frame, uint8_t **buffer, mlt_image_format *format, int *width, int *height, int writable )
{
// Obtain properties of frame
mlt_properties properties = MLT_FRAME_PROPERTIES( frame );
// Obtain the producer for this frame
mlt_producer producer = mlt_properties_get_data( properties, "producer_frei0r", NULL );
// Obtain properties of producer
mlt_properties producer_props = MLT_PRODUCER_PROPERTIES( producer );
// Allocate the image
int size = *width * ( *height + 1 ) * 2;
// Allocate the image
*buffer = mlt_pool_alloc( size );
// Update the frame
mlt_properties_set_data( properties, "image", *buffer, size, mlt_pool_release, NULL );
mlt_properties_set_int( properties, "width", *width );
mlt_properties_set_int( properties, "height", *height );
*format = mlt_image_yuv422;
if ( *buffer != NULL )
{
mlt_position in = mlt_producer_get_in( producer );
mlt_position out = mlt_producer_get_out( producer );
mlt_position time = mlt_frame_get_position( frame );
double position = ( double )( time - in ) / ( double )( out - in + 1 );
process_frei0r_item( producer_type , position, producer_props, frame , buffer, format , width , height , writable );
}
return 0;
}
static int producer_get_image( mlt_frame frame, uint8_t **buffer, mlt_image_format *format, int *width, int *height, int writable )
{
/* Obtain properties of frame */
mlt_properties properties = MLT_FRAME_PROPERTIES( frame );
/* Obtain the producer for this frame */
producer_ktitle this = mlt_properties_get_data( properties, "producer_kdenlivetitle", NULL );
/* Obtain properties of producer */
mlt_properties producer_props = MLT_PRODUCER_PROPERTIES( &this->parent );
*width = mlt_properties_get_int( properties, "rescale_width" );
*height = mlt_properties_get_int( properties, "rescale_height" );
/* Allocate the image */
int size = *width * ( *height ) * 4;
/* Allocate the image */
*format = mlt_image_rgb24a;
mlt_position time = mlt_producer_position( &this->parent ) + mlt_producer_get_in( &this->parent );
if ( mlt_properties_get_int( producer_props, "force_reload" ) ) {
if (mlt_properties_get_int( producer_props, "force_reload" ) > 1) read_xml(producer_props);
mlt_properties_set_int( producer_props, "force_reload", 0 );
drawKdenliveTitle( this, frame, *width, *height, time, 1);
}
else drawKdenliveTitle( this, frame, *width, *height, time, 0);
// Get width and height (may have changed during the refresh)
*width = mlt_properties_get_int( properties, "width" );
*height = mlt_properties_get_int( properties, "height" );
if ( this->current_image )
{
// Clone the image and the alpha
int image_size = this->current_width * ( this->current_height ) * 4;
uint8_t *image_copy = mlt_pool_alloc( image_size );
memcpy( image_copy, this->current_image, image_size );
// Now update properties so we free the copy after
mlt_properties_set_data( properties, "image", image_copy, image_size, mlt_pool_release, NULL );
// We're going to pass the copy on
*buffer = image_copy;
/* Update the frame */
mlt_properties_set_data( properties, "image", *buffer, size, mlt_pool_release, NULL );
mlt_log_debug( MLT_PRODUCER_SERVICE( &this->parent ), "width:%d height:%d %s\n", *width, *height, mlt_image_format_name( *format ) );
}
return 0;
}
mlt_position mlt_filter_get_length2( mlt_filter self, mlt_frame frame )
{
mlt_properties properties = MLT_SERVICE_PROPERTIES( &self->parent );
mlt_position in = mlt_properties_get_position( properties, "in" );
mlt_position out = mlt_properties_get_position( properties, "out" );
if ( out == 0 && frame )
{
// If always active, use the frame's producer
mlt_producer producer = mlt_frame_get_original_producer( frame );
if ( producer )
{
producer = mlt_producer_cut_parent( producer );
in = mlt_producer_get_in( producer );
out = mlt_producer_get_out( producer );
}
}
return ( out > 0 ) ? ( out - in + 1 ) : 0;
}
double mlt_transition_get_progress( mlt_transition self, mlt_frame frame )
{
double progress = 0;
mlt_position in = mlt_transition_get_in( self );
mlt_position out = mlt_transition_get_out( self );
if ( out == 0 )
{
// If always active, use the frame's producer
mlt_producer producer = mlt_frame_get_original_producer( frame );
if ( producer )
{
in = mlt_producer_get_in( producer );
out = mlt_producer_get_out( producer );
}
}
if ( out != 0 )
{
mlt_position position = mlt_frame_get_position( frame );
progress = ( double ) ( position - in ) / ( double ) ( out - in + 1 );
}
return progress;
}
int refresh_qimage( producer_qimage self, mlt_frame frame )
{
// Obtain properties of frame and producer
mlt_properties properties = MLT_FRAME_PROPERTIES( frame );
mlt_producer producer = &self->parent;
mlt_properties producer_props = MLT_PRODUCER_PROPERTIES( producer );
// Check if user wants us to reload the image
if ( mlt_properties_get_int( producer_props, "force_reload" ) )
{
self->qimage = NULL;
self->current_image = NULL;
mlt_properties_set_int( producer_props, "force_reload", 0 );
}
// Get the time to live for each frame
double ttl = mlt_properties_get_int( producer_props, "ttl" );
// Get the original position of this frame
mlt_position position = mlt_frame_original_position( frame );
position += mlt_producer_get_in( producer );
// Image index
int image_idx = ( int )floor( ( double )position / ttl ) % self->count;
// Key for the cache
char image_key[ 10 ];
sprintf( image_key, "%d", image_idx );
int disable_exif = mlt_properties_get_int( producer_props, "disable_exif" );
if ( app == NULL )
{
if ( qApp )
{
app = qApp;
}
else
{
#ifdef linux
if ( getenv("DISPLAY") == 0 )
{
mlt_log_panic( MLT_PRODUCER_SERVICE( producer ), "Error, cannot render titles without an X11 environment.\nPlease either run melt from an X session or use a fake X server like xvfb:\nxvfb-run -a melt (...)\n" );
return -1;
}
#endif
int argc = 1;
char* argv[1];
argv[0] = (char*) "xxx";
app = new QApplication( argc, argv );
const char *localename = mlt_properties_get_lcnumeric( MLT_SERVICE_PROPERTIES( MLT_PRODUCER_SERVICE( producer ) ) );
QLocale::setDefault( QLocale( localename ) );
}
}
if ( image_idx != self->qimage_idx )
self->qimage = NULL;
if ( !self->qimage || mlt_properties_get_int( producer_props, "_disable_exif" ) != disable_exif )
{
self->current_image = NULL;
QImage *qimage = new QImage( QString::fromUtf8( mlt_properties_get_value( self->filenames, image_idx ) ) );
self->qimage = qimage;
if ( !qimage->isNull( ) )
{
// Read the exif value for this file
if ( !disable_exif )
qimage = reorient_with_exif( self, image_idx, qimage );
// Register qimage for destruction and reuse
mlt_cache_item_close( self->qimage_cache );
mlt_service_cache_put( MLT_PRODUCER_SERVICE( producer ), "qimage.qimage", qimage, 0, ( mlt_destructor )qimage_delete );
self->qimage_cache = mlt_service_cache_get( MLT_PRODUCER_SERVICE( producer ), "qimage.qimage" );
self->qimage_idx = image_idx;
// Store the width/height of the qimage
self->current_width = qimage->width( );
self->current_height = qimage->height( );
mlt_events_block( producer_props, NULL );
mlt_properties_set_int( producer_props, "meta.media.width", self->current_width );
mlt_properties_set_int( producer_props, "meta.media.height", self->current_height );
mlt_properties_set_int( producer_props, "_disable_exif", disable_exif );
mlt_events_unblock( producer_props, NULL );
}
else
{
delete qimage;
self->qimage = NULL;
}
}
// Set width/height of frame
mlt_properties_set_int( properties, "width", self->current_width );
mlt_properties_set_int( properties, "height", self->current_height );
return image_idx;
}
static int producer_get_frame( mlt_service service, mlt_frame_ptr frame, int index )
{
int result = 1;
mlt_producer self = service != NULL ? service->child : NULL;
if ( self != NULL && !mlt_producer_is_cut( self ) )
{
// Get the properties of this producer
mlt_properties properties = MLT_PRODUCER_PROPERTIES( self );
// Determine eof handling
char *eof = mlt_properties_get( MLT_PRODUCER_PROPERTIES( self ), "eof" );
// Get the speed of the producer
double speed = mlt_producer_get_speed( self );
// We need to use the clone if it's specified
mlt_producer clone = mlt_properties_get_data( properties, "use_clone", NULL );
// If no clone is specified, use self
clone = clone == NULL ? self : clone;
// A properly instatiated producer will have a get_frame method...
if ( self->get_frame == NULL || ( eof && !strcmp( eof, "continue" ) && mlt_producer_position( self ) > mlt_producer_get_out( self ) ) )
{
// Generate a test frame
*frame = mlt_frame_init( service );
// Set the position
result = mlt_frame_set_position( *frame, mlt_producer_position( self ) );
// 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( self );
}
else
{
// Get the frame from the implementation
result = self->get_frame( clone, frame, index );
}
// Copy the fps and speed of the producer onto the frame
properties = MLT_FRAME_PROPERTIES( *frame );
mlt_properties_set_double( properties, "_speed", speed );
mlt_properties_set_int( properties, "test_audio", mlt_frame_is_test_audio( *frame ) );
mlt_properties_set_int( properties, "test_image", mlt_frame_is_test_card( *frame ) );
if ( mlt_properties_get_data( properties, "_producer", NULL ) == NULL )
mlt_properties_set_data( properties, "_producer", service, 0, NULL, NULL );
}
else if ( self != NULL )
{
// Get the speed of the cut
double speed = mlt_producer_get_speed( self );
// Get the parent of the cut
mlt_producer parent = mlt_producer_cut_parent( self );
// Get the properties of the parent
mlt_properties parent_properties = MLT_PRODUCER_PROPERTIES( parent );
// Get the properties of the cut
mlt_properties properties = MLT_PRODUCER_PROPERTIES( self );
// Determine the clone index
int clone_index = mlt_properties_get_int( properties, "_clone" );
// Determine the clone to use
mlt_producer clone = self;
if ( clone_index > 0 )
{
char key[ 25 ];
sprintf( key, "_clone.%d", clone_index - 1 );
clone = mlt_properties_get_data( MLT_PRODUCER_PROPERTIES( mlt_producer_cut_parent( self ) ), key, NULL );
if ( clone == NULL ) mlt_log( service, MLT_LOG_ERROR, "requested clone doesn't exist %d\n", clone_index );
clone = clone == NULL ? self : clone;
}
else
{
clone = parent;
}
// We need to seek to the correct position in the clone
mlt_producer_seek( clone, mlt_producer_get_in( self ) + mlt_properties_get_int( properties, "_position" ) );
// Assign the clone property to the parent
mlt_properties_set_data( parent_properties, "use_clone", clone, 0, NULL, NULL );
// Now get the frame from the parents service
result = mlt_service_get_frame( MLT_PRODUCER_SERVICE( parent ), frame, index );
// We're done with the clone now
mlt_properties_set_data( parent_properties, "use_clone", NULL, 0, NULL, NULL );
// This is useful and required by always_active transitions to determine in/out points of the cut
if ( mlt_properties_get_data( MLT_FRAME_PROPERTIES( *frame ), "_producer", NULL ) == MLT_PRODUCER_SERVICE( parent ) )
mlt_properties_set_data( MLT_FRAME_PROPERTIES( *frame ), "_producer", self, 0, NULL, NULL );
mlt_properties_set_double( MLT_FRAME_PROPERTIES( *frame ), "_speed", speed );
mlt_producer_prepare_next( self );
}
else
{
*frame = mlt_frame_init( service );
result = 0;
}
// Pass on all meta properties from the producer/cut on to the frame
if ( *frame != NULL && self != NULL )
{
int i = 0;
mlt_properties p_props = MLT_PRODUCER_PROPERTIES( self );
mlt_properties f_props = MLT_FRAME_PROPERTIES( *frame );
mlt_properties_lock( p_props );
int count = mlt_properties_count( p_props );
for ( i = 0; i < count; i ++ )
{
char *name = mlt_properties_get_name( p_props, i );
if ( !strncmp( name, "meta.", 5 ) )
mlt_properties_set( f_props, name, mlt_properties_get_value( p_props, i ) );
else if ( !strncmp( name, "set.", 4 ) )
mlt_properties_set( f_props, name + 4, mlt_properties_get_value( p_props, i ) );
}
mlt_properties_unlock( p_props );
}
return result;
}
mlt_position mlt_producer_get_playtime( mlt_producer self )
{
return mlt_producer_get_out( self ) - mlt_producer_get_in( self ) + 1;
}
void AsisScript::pre_judge() throw (Exception)
{
ScriptProps::Property& service_prop = type_spec_props->get_property("service");
if (!service_prop.Evaluable::finished())
throw_error_v(ErrorScriptFmtError,"asis producer script service should be determinated");
ScriptProps::Property& resource_prop = type_spec_props->get_property("resource");
if (!resource_prop.Evaluable::finished())
throw_error_v(ErrorScriptFmtError,"asis producer script resource should be determinated");
json_t* svc_value = service_prop.compile();
json_t* res_value = resource_prop.compile();
JsonWrap svc_wrap(svc_value,1);
JsonWrap res_wrap(res_value,1);
if ( !svc_value || !json_is_string(svc_value) || !strlen(json_string_value(svc_value)))
throw_error_v(ErrorScriptFmtError,"asis producer script service should be string value");
if ( !res_value || !json_is_string(res_value) || !strlen(json_string_value(res_value)))
throw_error_v(ErrorScriptFmtError,"asis producer script resource should be string value");
mlt_profile prof = mlt_profile_clone(MltLoader::global_profile);
mlt_producer tmp_prod = mlt_factory_producer(prof, json_string_value(svc_value), json_string_value(res_value));
MltSvcWrap prod_wrap(mlt_producer_service(tmp_prod), 1);
if (tmp_prod == NULL) {
throw_error_v(ErrorRuntimeLoadFailed, "producer %s load failed", json_string_value(svc_value));
}
if ( mlt_props ) {
ScriptProps::PropIter it = mlt_props->begin();
for ( ; it!=mlt_props->end(); it++) {
if ( it->second->Evaluable::finished() ) {
json_t* prop_v = it->second->compile();
JsonWrap prop_wrap(prop_v, 1);
switch(prop_v->type) {
case JSON_INTEGER:
mlt_properties_set_int64(mlt_producer_properties(tmp_prod),
it->first.c_str(), json_integer_value(prop_v));
break;
case JSON_REAL:
mlt_properties_set_double(mlt_producer_properties(tmp_prod),
it->first.c_str(), json_real_value(prop_v));
break;
case JSON_STRING:
mlt_properties_set(mlt_producer_properties(tmp_prod),
it->first.c_str(), json_string_value(prop_v));
break;
case JSON_TRUE:
mlt_properties_set_int(mlt_producer_properties(tmp_prod),
it->first.c_str(), 1);
break;
case JSON_FALSE:
mlt_properties_set_int(mlt_producer_properties(tmp_prod),
it->first.c_str(), 0);
break;
default:
throw_error_v(ErrorRuntimeLoadFailed, "producer %s load failed. %s prop invalid",
json_string_value(svc_value), it->first.c_str());
}
}
}
}
int in = mlt_producer_get_in(tmp_prod);
int out = mlt_producer_get_out(tmp_prod);
set_frame_range(in, out);
if ( !mlt_props.get()) {
mlt_props.reset(new ScriptProps(*this, NULL));
}
json_t* jv = json_integer(in);
mlt_props->add_property("in", jv);
json_decref(jv);
jv = json_integer(out);
mlt_props->add_property("out", jv);
json_decref(jv);
string uuid = Vm::uuid();
type_spec_props->add_property("uuid", JsonWrap(json_string(uuid.c_str()),1).h);
prod_wrap.obj = NULL;
MltLoader::push_mlt_registry(mlt_producer_service(tmp_prod), uuid.c_str());
}
int refresh_qimage( producer_qimage self, mlt_frame frame )
{
// Obtain properties of frame and producer
mlt_properties properties = MLT_FRAME_PROPERTIES( frame );
mlt_producer producer = &self->parent;
mlt_properties producer_props = MLT_PRODUCER_PROPERTIES( producer );
// Check if user wants us to reload the image
if ( mlt_properties_get_int( producer_props, "force_reload" ) )
{
self->qimage = NULL;
self->current_image = NULL;
mlt_properties_set_int( producer_props, "force_reload", 0 );
}
// Get the time to live for each frame
double ttl = mlt_properties_get_int( producer_props, "ttl" );
// Get the original position of this frame
mlt_position position = mlt_frame_original_position( frame );
position += mlt_producer_get_in( producer );
// Image index
int image_idx = ( int )floor( ( double )position / ttl ) % self->count;
int disable_exif = mlt_properties_get_int( producer_props, "disable_exif" );
if ( !createQApplicationIfNeeded( MLT_PRODUCER_SERVICE(producer) ) )
return -1;
if ( image_idx != self->qimage_idx )
self->qimage = NULL;
if ( !self->qimage || mlt_properties_get_int( producer_props, "_disable_exif" ) != disable_exif )
{
self->current_image = NULL;
QImage *qimage = new QImage( QString::fromUtf8( mlt_properties_get_value( self->filenames, image_idx ) ) );
self->qimage = qimage;
if ( !qimage->isNull( ) )
{
// Read the exif value for this file
if ( !disable_exif )
qimage = reorient_with_exif( self, image_idx, qimage );
// Register qimage for destruction and reuse
mlt_cache_item_close( self->qimage_cache );
mlt_service_cache_put( MLT_PRODUCER_SERVICE( producer ), "qimage.qimage", qimage, 0, ( mlt_destructor )qimage_delete );
self->qimage_cache = mlt_service_cache_get( MLT_PRODUCER_SERVICE( producer ), "qimage.qimage" );
self->qimage_idx = image_idx;
// Store the width/height of the qimage
self->current_width = qimage->width( );
self->current_height = qimage->height( );
mlt_events_block( producer_props, NULL );
mlt_properties_set_int( producer_props, "meta.media.width", self->current_width );
mlt_properties_set_int( producer_props, "meta.media.height", self->current_height );
mlt_properties_set_int( producer_props, "_disable_exif", disable_exif );
mlt_events_unblock( producer_props, NULL );
}
else
{
delete qimage;
self->qimage = NULL;
}
}
// Set width/height of frame
mlt_properties_set_int( properties, "width", self->current_width );
mlt_properties_set_int( properties, "height", self->current_height );
return image_idx;
}
static int refresh_pixbuf( producer_pixbuf self, mlt_frame frame )
{
// Obtain properties of frame and producer
mlt_properties properties = MLT_FRAME_PROPERTIES( frame );
mlt_producer producer = &self->parent;
mlt_properties producer_props = MLT_PRODUCER_PROPERTIES( producer );
// Check if user wants us to reload the image
if ( mlt_properties_get_int( producer_props, "force_reload" ) )
{
self->pixbuf = NULL;
self->image = NULL;
mlt_properties_set_int( producer_props, "force_reload", 0 );
}
// Get the time to live for each frame
double ttl = mlt_properties_get_int( producer_props, "ttl" );
// Get the original position of this frame
mlt_position position = mlt_frame_original_position( frame );
position += mlt_producer_get_in( producer );
// Image index
int loop = mlt_properties_get_int( producer_props, "loop" );
int current_idx;
if (loop) {
current_idx = ( int )floor( ( double )position / ttl ) % self->count;
} else {
current_idx = MIN(( double )position / ttl, self->count - 1);
}
// Key for the cache
char image_key[ 10 ];
sprintf( image_key, "%d", current_idx );
int disable_exif = mlt_properties_get_int( producer_props, "disable_exif" );
if ( current_idx != self->pixbuf_idx )
self->pixbuf = NULL;
if ( !self->pixbuf || mlt_properties_get_int( producer_props, "_disable_exif" ) != disable_exif )
{
GError *error = NULL;
self->image = NULL;
pthread_mutex_lock( &g_mutex );
self->pixbuf = gdk_pixbuf_new_from_file( mlt_properties_get_value( self->filenames, current_idx ), &error );
if ( self->pixbuf )
{
// Read the exif value for this file
if ( !disable_exif )
self->pixbuf = reorient_with_exif( self, current_idx, self->pixbuf );
// Register this pixbuf for destruction and reuse
mlt_cache_item_close( self->pixbuf_cache );
mlt_service_cache_put( MLT_PRODUCER_SERVICE( producer ), "pixbuf.pixbuf", self->pixbuf, 0, ( mlt_destructor )g_object_unref );
self->pixbuf_cache = mlt_service_cache_get( MLT_PRODUCER_SERVICE( producer ), "pixbuf.pixbuf" );
self->pixbuf_idx = current_idx;
// Store the width/height of the pixbuf temporarily
self->width = gdk_pixbuf_get_width( self->pixbuf );
self->height = gdk_pixbuf_get_height( self->pixbuf );
mlt_events_block( producer_props, NULL );
mlt_properties_set_int( producer_props, "meta.media.width", self->width );
mlt_properties_set_int( producer_props, "meta.media.height", self->height );
mlt_properties_set_int( producer_props, "_disable_exif", disable_exif );
mlt_events_unblock( producer_props, NULL );
}
pthread_mutex_unlock( &g_mutex );
}
// Set width/height of frame
mlt_properties_set_int( properties, "width", self->width );
mlt_properties_set_int( properties, "height", self->height );
return current_idx;
}
