static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int index )
{
// Get the real structure for this producer
producer_qimage self = producer->child;
// Fetch the producers properties
mlt_properties producer_properties = MLT_PRODUCER_PROPERTIES( producer );
if ( self->filenames == NULL && mlt_properties_get( producer_properties, "resource" ) != NULL )
load_filenames( self, producer_properties );
// Generate a frame
*frame = mlt_frame_init( MLT_PRODUCER_SERVICE( producer ) );
if ( *frame != NULL && self->count > 0 )
{
// Obtain properties of frame and producer
mlt_properties properties = MLT_FRAME_PROPERTIES( *frame );
// Set the producer on the frame properties
mlt_properties_set_data( properties, "producer_qimage", self, 0, NULL, NULL );
// Update timecode on the frame we're creating
mlt_frame_set_position( *frame, mlt_producer_position( producer ) );
// Ensure that we have a way to obtain the position in the get_image
mlt_properties_set_position( properties, "qimage_position", mlt_producer_position( producer ) );
// Refresh the image
self->qimage_cache = mlt_service_cache_get( MLT_PRODUCER_SERVICE( producer ), "qimage.qimage" );
self->qimage = mlt_cache_item_data( self->qimage_cache, NULL );
refresh_qimage( self, *frame );
mlt_cache_item_close( self->qimage_cache );
// Set producer-specific frame properties
mlt_properties_set_int( properties, "progressive", mlt_properties_get_int( producer_properties, "progressive" ) );
double force_ratio = mlt_properties_get_double( producer_properties, "force_aspect_ratio" );
if ( force_ratio > 0.0 )
mlt_properties_set_double( properties, "aspect_ratio", force_ratio );
else
mlt_properties_set_double( properties, "aspect_ratio", mlt_properties_get_double( producer_properties, "aspect_ratio" ) );
// Push the get_image method
mlt_frame_push_get_image( *frame, producer_get_image );
}
// Calculate the next timecode
mlt_producer_prepare_next( producer );
return 0;
}
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;
}
static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int index )
{
if ( frame )
{
// Construct a new frame
*frame = mlt_frame_init( MLT_PRODUCER_SERVICE( producer ) );
// Stack the producer and producer's get image
mlt_frame_push_service_int( *frame, index );
mlt_frame_push_service( *frame, producer );
mlt_frame_push_service( *frame, framebuffer_get_image );
mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
mlt_properties frame_properties = MLT_FRAME_PROPERTIES(*frame);
// Get frame from the real producer
mlt_frame first_frame = mlt_properties_get_data( properties, "first_frame", NULL );
if ( first_frame == NULL )
{
// Get the frame to cache from the real producer
mlt_producer real_producer = mlt_properties_get_data( properties, "producer", NULL );
// Seek the producer to the correct place
mlt_producer_seek( real_producer, mlt_producer_position( producer ) );
// Get the frame
mlt_service_get_frame( MLT_PRODUCER_SERVICE( real_producer ), &first_frame, index );
// Cache the frame
mlt_properties_set_data( properties, "first_frame", first_frame, 0, ( mlt_destructor )mlt_frame_close, NULL );
}
mlt_properties_inherit( frame_properties, MLT_FRAME_PROPERTIES(first_frame) );
double force_aspect_ratio = mlt_properties_get_double( properties, "force_aspect_ratio" );
if ( force_aspect_ratio <= 0.0 ) force_aspect_ratio = mlt_properties_get_double( properties, "aspect_ratio" );
mlt_properties_set_double( frame_properties, "aspect_ratio", force_aspect_ratio );
// Give the returned frame temporal identity
mlt_frame_set_position( *frame, mlt_producer_position( producer ) );
mlt_properties_set_int( frame_properties, "meta.media.width", mlt_properties_get_int( properties, "width" ) );
mlt_properties_set_int( frame_properties, "meta.media.height", mlt_properties_get_int( properties, "height" ) );
mlt_properties_pass_list( frame_properties, properties, "width, height" );
}
return 0;
}
static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int index )
{
// Generate a frame
*frame = mlt_frame_init( MLT_PRODUCER_SERVICE( producer ) );
// Check that we created a frame and initialize it
if ( *frame != NULL )
{
// Obtain properties of frame
mlt_properties frame_properties = MLT_FRAME_PROPERTIES( *frame );
// Update timecode on the frame we're creating
mlt_frame_set_position( *frame, mlt_producer_position( producer ) );
// Save the producer to be used in get_audio
mlt_properties_set_data( frame_properties, "_producer_ladspa", producer, 0, NULL, NULL );
// Push the get_audio method
mlt_frame_push_audio( *frame, producer_get_audio );
}
// Calculate the next time code
mlt_producer_prepare_next( producer );
return 0;
}
int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int index )
{
// Generate a frame
*frame = mlt_frame_init( MLT_PRODUCER_SERVICE( producer ) );
if ( *frame != NULL )
{
// Obtain properties of frame and producer
mlt_properties properties = MLT_FRAME_PROPERTIES( *frame );
// Obtain properties of producer
mlt_properties producer_props = MLT_PRODUCER_PROPERTIES( producer );
// Set the producer on the frame properties
mlt_properties_set_data( properties, "producer_frei0r", producer, 0, NULL, NULL );
// Update timecode on the frame we're creating
mlt_frame_set_position( *frame, mlt_producer_position( producer ) );
// Set producer-specific frame properties
mlt_properties_set_int( properties, "progressive", 1 );
mlt_profile profile = mlt_service_profile( MLT_PRODUCER_SERVICE( producer ) );
mlt_properties_set_double( properties, "aspect_ratio", mlt_profile_sar( profile ) );
// Push the get_image method
mlt_frame_push_get_image( *frame, producer_get_image );
}
// Calculate the next timecode
mlt_producer_prepare_next( producer );
return 0;
}
static int getFrame(mlt_producer producer, mlt_frame_ptr frame, int /*index*/) {
// Generate a frame
*frame = mlt_frame_init(MLT_PRODUCER_SERVICE(producer));
if (*frame) {
// Obtain properties of frame and producer
mlt_properties properties = MLT_FRAME_PROPERTIES(*frame);
// Set the producer on the frame properties
mlt_properties_set_data(properties, kWebVfxProducerPropertyName, producer, 0, NULL, NULL);
// Update timecode on the frame we're creating
mlt_position position = mlt_producer_position(producer);
mlt_frame_set_position(*frame, position);
mlt_properties_set_position(properties, kWebVfxPositionPropertyName, position);
// Set producer-specific frame properties
mlt_properties_set_int(properties, "progressive", 1);
// Push the get_image method
mlt_frame_push_get_image(*frame, producerGetImage);
}
// Calculate the next timecode
mlt_producer_prepare_next(producer);
return 0;
}
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;
}
uint32_t MltRuntime::get_frame_position() throw (Exception)
{
Lock lk(&run_lock);
if (producer)
return mlt_producer_position(producer);
else
throw_error_v(ErrorRuntimeStatusError, "not loaded.");
}
bool TransitionHandler::moveTransition(QString type, int startTrack, int newTrack, int newTransitionTrack, GenTime oldIn, GenTime oldOut, GenTime newIn, GenTime newOut)
{
double fps = m_tractor->get_fps();
int new_in = (int)newIn.frames(fps);
int new_out = (int)newOut.frames(fps) - 1;
if (new_in >= new_out) return false;
int old_in = (int)oldIn.frames(fps);
int old_out = (int)oldOut.frames(fps) - 1;
bool doRefresh = true;
// Check if clip is visible in monitor
int position = mlt_producer_position(m_tractor->get_producer());
int diff = old_out - position;
if (diff < 0 || diff > old_out - old_in) doRefresh = false;
if (doRefresh) {
diff = new_out - position;
if (diff < 0 || diff > new_out - new_in) doRefresh = false;
}
QScopedPointer<Mlt::Field> field(m_tractor->field());
field->lock();
mlt_service nextservice = mlt_service_get_producer(field->get_service());
mlt_properties properties = MLT_SERVICE_PROPERTIES(nextservice);
QString resource = mlt_properties_get(properties, "mlt_service");
int old_pos = (int)(old_in + old_out) / 2;
bool found = false;
mlt_service_type mlt_type = mlt_service_identify( nextservice );
while (mlt_type == transition_type) {
Mlt::Transition transition((mlt_transition) nextservice);
nextservice = mlt_service_producer(nextservice);
int currentTrack = transition.get_b_track();
int currentIn = (int) transition.get_in();
int currentOut = (int) transition.get_out();
if (resource == type && startTrack == currentTrack && currentIn <= old_pos && currentOut >= old_pos) {
found = true;
if (newTrack - startTrack != 0) {
Mlt::Properties trans_props(transition.get_properties());
Mlt::Transition new_transition(*m_tractor->profile(), transition.get("mlt_service"));
Mlt::Properties new_trans_props(new_transition.get_properties());
// We cannot use MLT's property inherit because it also clones internal values like _unique_id which messes up the playlist
cloneProperties(new_trans_props, trans_props);
new_transition.set_in_and_out(new_in, new_out);
field->disconnect_service(transition);
plantTransition(field.data(), new_transition, newTransitionTrack, newTrack);
} else transition.set_in_and_out(new_in, new_out);
break;
}
if (nextservice == NULL) break;
properties = MLT_SERVICE_PROPERTIES(nextservice);
mlt_type = mlt_service_identify( nextservice );
resource = mlt_properties_get(properties, "mlt_service");
}
field->unlock();
if (doRefresh) refresh();
//if (m_isBlocked == 0) m_mltConsumer->set("refresh", 1);
return found;
}
static int producer_get_frame( mlt_producer parent, mlt_frame_ptr frame, int index )
{
// Get the mutiltrack object
mlt_multitrack self = parent->child;
// Check if we have a track for this index
if ( index >= 0 && index < self->count && self->list[ index ] != NULL )
{
// Get the producer for this track
mlt_producer producer = self->list[ index ]->producer;
// Get the track hide property
int hide = mlt_properties_get_int( MLT_PRODUCER_PROPERTIES( mlt_producer_cut_parent( producer ) ), "hide" );
// Obtain the current position
mlt_position position = mlt_producer_frame( parent );
// Get the parent properties
mlt_properties producer_properties = MLT_PRODUCER_PROPERTIES( parent );
// Get the speed
double speed = mlt_properties_get_double( producer_properties, "_speed" );
// Make sure we're at the same point
mlt_producer_seek( producer, position );
// Get the frame from the producer
mlt_service_get_frame( MLT_PRODUCER_SERVICE( producer ), frame, 0 );
// Indicate speed of this producer
mlt_properties properties = MLT_FRAME_PROPERTIES( *frame );
mlt_properties_set_double( properties, "_speed", speed );
mlt_frame_set_position( *frame, position );
mlt_properties_set_int( properties, "hide", hide );
}
else
{
// Generate a test frame
*frame = mlt_frame_init( MLT_PRODUCER_SERVICE( parent ) );
// Update position on the frame we're creating
mlt_frame_set_position( *frame, mlt_producer_position( parent ) );
// Move on to the next frame
if ( index >= self->count )
{
// Let tractor know if we've reached the end
mlt_properties_set_int( MLT_FRAME_PROPERTIES( *frame ), "last_track", 1 );
// Move to the next frame
mlt_producer_prepare_next( parent );
}
}
return 0;
}
void TransitionHandler::updateTransition(QString oldTag, QString tag, int a_track, int b_track, GenTime in, GenTime out, QDomElement xml, bool force)
{
if (oldTag == tag && !force) updateTransitionParams(tag, a_track, b_track, in, out, xml);
else {
////qDebug()<<"// DELETING TRANS: "<<a_track<<"-"<<b_track;
deleteTransition(oldTag, a_track, b_track, in, out, xml, false);
addTransition(tag, a_track, b_track, in, out, xml, false);
}
int position = mlt_producer_position(m_tractor->get_producer());
if (position >= in.frames(m_fps) && position <= out.frames(m_fps)) emit refresh();
}
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;
}
static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int index )
{
// Generate a frame
*frame = mlt_frame_init( MLT_PRODUCER_SERVICE( producer ) );
if ( *frame != NULL )
{
mlt_properties frame_properties = MLT_FRAME_PROPERTIES( *frame );
mlt_properties producer_properties = MLT_PRODUCER_PROPERTIES( producer );
// Regenerate the QPainterPath if necessary
if( check_qpath( producer_properties ) )
{
generate_qpath( producer_properties );
}
// Give the frame a copy of the painter path
QPainterPath* prodPath = static_cast<QPainterPath*>( mlt_properties_get_data( producer_properties, "_qpath", NULL ) );
QPainterPath* framePath = new QPainterPath( *prodPath );
mlt_properties_set_data( frame_properties, "_qpath", static_cast<void*>( framePath ), 0, close_qpath, NULL );
// Pass properties to the frame that will be needed to render the path
mlt_properties_set( frame_properties, "_path_sig", mlt_properties_get( producer_properties, "_path_sig" ) );
mlt_properties_set( frame_properties, "_bgcolour", mlt_properties_get( producer_properties, "bgcolour" ) );
mlt_properties_set( frame_properties, "_fgcolour", mlt_properties_get( producer_properties, "fgcolour" ) );
mlt_properties_set( frame_properties, "_olcolour", mlt_properties_get( producer_properties, "olcolour" ) );
mlt_properties_set( frame_properties, "_outline", mlt_properties_get( producer_properties, "outline" ) );
mlt_properties_set_data( frame_properties, "_producer_qtext", static_cast<void*>( producer ), 0, NULL, NULL );
// Set frame properties
mlt_properties_set_int( frame_properties, "progressive", 1 );
double force_ratio = mlt_properties_get_double( producer_properties, "force_aspect_ratio" );
if ( force_ratio > 0.0 )
mlt_properties_set_double( frame_properties, "aspect_ratio", force_ratio );
else
mlt_properties_set_double( frame_properties, "aspect_ratio", 1.0);
// Update time code on the frame
mlt_frame_set_position( *frame, mlt_producer_position( producer ) );
// Configure callbacks
mlt_frame_push_get_image( *frame, producer_get_image );
}
// Calculate the next time code
mlt_producer_prepare_next( producer );
return 0;
}
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;
}
static int get_frame( mlt_producer producer, mlt_frame_ptr frame, int index )
{
DeckLinkProducer* decklink = (DeckLinkProducer*) producer->child;
mlt_position pos = mlt_producer_position( producer );
mlt_position end = mlt_producer_get_playtime( producer );
end = ( mlt_producer_get_length( producer ) < end ? mlt_producer_get_length( producer ) : end ) - 1;
// Re-open if needed
if ( !decklink && pos < end )
{
producer->child = decklink = new DeckLinkProducer();
decklink->setProducer( producer );
decklink->open( mlt_properties_get_int( MLT_PRODUCER_PROPERTIES(producer), "resource" ) );
}
// Start if needed
if ( decklink )
{
decklink->start( mlt_service_profile( MLT_PRODUCER_SERVICE( producer ) ) );
// Get the next frame from the decklink object
if ( ( *frame = decklink->getFrame() ))
{
// Add audio and video getters
mlt_frame_push_audio( *frame, (void*) get_audio );
mlt_frame_push_get_image( *frame, get_image );
}
}
if ( !*frame )
*frame = mlt_frame_init( MLT_PRODUCER_SERVICE(producer) );
// Calculate the next timecode
mlt_producer_prepare_next( producer );
// Close DeckLink if at end
if ( pos >= end && decklink )
{
decklink->stop();
delete decklink;
producer->child = NULL;
}
return 0;
}
static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int index )
{
producer_kino this = producer->child;
uint8_t *data = mlt_pool_alloc( FRAME_SIZE_625_50 );
// Obtain the current frame number
uint64_t position = mlt_producer_frame( producer );
// Create an empty frame
*frame = mlt_frame_init( MLT_PRODUCER_SERVICE( producer ) );
// Seek and fetch
if ( kino_wrapper_get_frame( this->wrapper, data, position ) )
{
// Get the frames properties
mlt_properties properties = MLT_FRAME_PROPERTIES( *frame );
// Determine if we're PAL or NTSC
int is_pal = kino_wrapper_is_pal( this->wrapper );
// Pass the dv data
mlt_properties_set_data( properties, "dv_data", data, FRAME_SIZE_625_50, ( mlt_destructor )mlt_pool_release, NULL );
// Update other info on the frame
mlt_properties_set_int( properties, "width", 720 );
mlt_properties_set_int( properties, "height", is_pal ? 576 : 480 );
mlt_properties_set_int( properties, "top_field_first", is_pal ? 0 : ( data[ 5 ] & 0x07 ) == 0 ? 0 : 1 );
}
else
{
mlt_pool_release( data );
}
// Update timecode on the frame we're creating
mlt_frame_set_position( *frame, mlt_producer_position( producer ) );
// Calculate the next timecode
mlt_producer_prepare_next( producer );
return 0;
}
static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int index )
{
// Get the real structure for this producer
producer_ktitle this = producer->child;
/* Generate a frame */
*frame = mlt_frame_init( MLT_PRODUCER_SERVICE( producer ) );
if ( *frame != NULL )
{
/* Obtain properties of frame and producer */
mlt_properties properties = MLT_FRAME_PROPERTIES( *frame );
/* Obtain properties of producer */
mlt_properties producer_props = MLT_PRODUCER_PROPERTIES( producer );
/* Set the producer on the frame properties */
mlt_properties_set_data( properties, "producer_kdenlivetitle", this, 0, NULL, NULL );
/* Update timecode on the frame we're creating */
mlt_frame_set_position( *frame, mlt_producer_position( producer ) );
// Set producer-specific frame properties
mlt_properties_set_int( properties, "progressive", mlt_properties_get_int( producer_props, "progressive" ) );
double force_ratio = mlt_properties_get_double( producer_props, "force_aspect_ratio" );
if ( force_ratio > 0.0 )
mlt_properties_set_double( properties, "aspect_ratio", force_ratio );
else
mlt_properties_set_double( properties, "aspect_ratio", mlt_properties_get_double( producer_props, "aspect_ratio" ) );
/* Push the get_image method */
mlt_frame_push_get_image( *frame, producer_get_image );
}
/* Calculate the next timecode */
mlt_producer_prepare_next( producer );
return 0;
}
bool TransitionHandler::addTransition(QString tag, int a_track, int b_track, GenTime in, GenTime out, QDomElement xml, bool do_refresh)
{
if (in >= out) return false;
double fps = m_tractor->get_fps();
QMap<QString, QString> args = getTransitionParamsFromXml(xml);
QScopedPointer<Mlt::Field> field(m_tractor->field());
Mlt::Transition transition(*m_tractor->profile(), tag.toUtf8().constData());
if (!transition.is_valid()) return false;
if (out != GenTime())
transition.set_in_and_out((int) in.frames(fps), (int) out.frames(fps) - 1);
int position = mlt_producer_position(m_tractor->get_producer());
if (do_refresh && ((position < in.frames(fps)) || (position > out.frames(fps)))) do_refresh = false;
QMap<QString, QString>::Iterator it;
QString key;
if (xml.attribute(QStringLiteral("automatic")) == QLatin1String("1")) transition.set("automatic", 1);
////qDebug() << " ------ ADDING TRANSITION PARAMs: " << args.count();
if (xml.hasAttribute(QStringLiteral("id")))
transition.set("kdenlive_id", xml.attribute(QStringLiteral("id")).toUtf8().constData());
if (xml.hasAttribute(QStringLiteral("force_track")))
transition.set("force_track", xml.attribute(QStringLiteral("force_track")).toInt());
for (it = args.begin(); it != args.end(); ++it) {
key = it.key();
if (!it.value().isEmpty())
transition.set(key.toUtf8().constData(), it.value().toUtf8().constData());
////qDebug() << " ------ ADDING TRANS PARAM: " << key << ": " << it.value();
}
// attach transition
m_tractor->lock();
plantTransition(field.data(), transition, a_track, b_track);
// field->plant_transition(*transition, a_track, b_track);
m_tractor->unlock();
if (do_refresh) emit refresh();
return true;
}
static int framebuffer_get_image( mlt_frame frame, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
{
// Get the filter object and properties
mlt_producer producer = mlt_frame_pop_service( frame );
int index = ( int )mlt_frame_pop_service( frame );
mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
mlt_service_lock( MLT_PRODUCER_SERVICE( producer ) );
// Frame properties objects
mlt_properties frame_properties = MLT_FRAME_PROPERTIES( frame );
mlt_frame first_frame = mlt_properties_get_data( properties, "first_frame", NULL );
// Get producer parameters
int strobe = mlt_properties_get_int( properties, "strobe" );
int freeze = mlt_properties_get_int( properties, "freeze" );
int freeze_after = mlt_properties_get_int( properties, "freeze_after" );
int freeze_before = mlt_properties_get_int( properties, "freeze_before" );
int in = mlt_properties_get_position( properties, "in" );
// Determine the position
mlt_position first_position = (first_frame != NULL) ? mlt_frame_get_position( first_frame ) : -1;
mlt_position need_first = freeze;
if ( !freeze || freeze_after || freeze_before )
{
double prod_speed = mlt_properties_get_double( properties, "_speed" );
double actual_position = in + prod_speed * (double) mlt_producer_position( producer );
if ( mlt_properties_get_int( properties, "reverse" ) )
actual_position = mlt_producer_get_playtime( producer ) - actual_position;
if ( strobe < 2 )
{
need_first = floor( actual_position );
}
else
{
// Strobe effect wanted, calculate frame position
need_first = floor( actual_position );
need_first -= need_first % strobe;
}
if ( freeze )
{
if ( freeze_after && need_first > freeze ) need_first = freeze;
else if ( freeze_before && need_first < freeze ) need_first = freeze;
}
}
// Determine output buffer size
*width = mlt_properties_get_int( frame_properties, "width" );
*height = mlt_properties_get_int( frame_properties, "height" );
int size = mlt_image_format_size( *format, *width, *height, NULL );
// Get output buffer
int buffersize = 0;
int alphasize = *width * *height;
uint8_t *output = mlt_properties_get_data( properties, "output_buffer", &buffersize );
uint8_t *output_alpha = mlt_properties_get_data( properties, "output_alpha", NULL );
if( buffersize == 0 || buffersize != size )
{
// invalidate cached frame
first_position = -1;
}
if ( need_first != first_position )
{
// invalidate cached frame
first_position = -1;
// Bust the cached frame
mlt_properties_set_data( properties, "first_frame", NULL, 0, NULL, NULL );
first_frame = NULL;
}
if ( output && first_position != -1 ) {
// Using the cached frame
uint8_t *image_copy = mlt_pool_alloc( size );
memcpy( image_copy, output, size );
uint8_t *alpha_copy = mlt_pool_alloc( alphasize );
memcpy( alpha_copy, output_alpha, alphasize );
// Set the output image
*image = image_copy;
mlt_frame_set_image( frame, image_copy, size, mlt_pool_release );
mlt_frame_set_alpha( frame, alpha_copy, alphasize, mlt_pool_release );
*width = mlt_properties_get_int( properties, "_output_width" );
*height = mlt_properties_get_int( properties, "_output_height" );
*format = mlt_properties_get_int( properties, "_output_format" );
mlt_service_unlock( MLT_PRODUCER_SERVICE( producer ) );
return 0;
}
// Get the cached frame
if ( first_frame == NULL )
{
// Get the frame to cache from the real producer
mlt_producer real_producer = mlt_properties_get_data( properties, "producer", NULL );
// Seek the producer to the correct place
mlt_producer_seek( real_producer, need_first );
// Get the frame
mlt_service_get_frame( MLT_PRODUCER_SERVICE( real_producer ), &first_frame, index );
// Cache the frame
mlt_properties_set_data( properties, "first_frame", first_frame, 0, ( mlt_destructor )mlt_frame_close, NULL );
}
mlt_properties first_frame_properties = MLT_FRAME_PROPERTIES( first_frame );
// Which frames are buffered?
uint8_t *first_image = mlt_properties_get_data( first_frame_properties, "image", NULL );
uint8_t *first_alpha = mlt_properties_get_data( first_frame_properties, "alpha", NULL );
if ( !first_image )
{
mlt_properties_set( first_frame_properties, "rescale.interp", mlt_properties_get( frame_properties, "rescale.interp" ) );
int error = mlt_frame_get_image( first_frame, &first_image, format, width, height, writable );
if ( error != 0 ) {
mlt_log_error( MLT_PRODUCER_SERVICE( producer ), "first_image == NULL get image died\n" );
mlt_service_unlock( MLT_PRODUCER_SERVICE( producer ) );
return error;
}
output = mlt_pool_alloc( size );
memcpy( output, first_image, size );
// Let someone else clean up
mlt_properties_set_data( properties, "output_buffer", output, size, mlt_pool_release, NULL );
mlt_properties_set_int( properties, "_output_width", *width );
mlt_properties_set_int( properties, "_output_height", *height );
mlt_properties_set_int( properties, "_output_format", *format );
}
if ( !first_alpha )
{
alphasize = *width * *height;
first_alpha = mlt_frame_get_alpha_mask( first_frame );
output_alpha = mlt_pool_alloc( alphasize );
memcpy( output_alpha, first_alpha, alphasize );
mlt_properties_set_data( properties, "output_alpha", output_alpha, alphasize, mlt_pool_release, NULL );
}
mlt_service_unlock( MLT_PRODUCER_SERVICE( producer ) );
// Create a copy
uint8_t *image_copy = mlt_pool_alloc( size );
memcpy( image_copy, first_image, size );
uint8_t *alpha_copy = mlt_pool_alloc( alphasize );
memcpy( alpha_copy, first_alpha, alphasize );
// Set the output image
*image = image_copy;
mlt_frame_set_image( frame, *image, size, mlt_pool_release );
mlt_frame_set_alpha( frame, alpha_copy, alphasize, mlt_pool_release );
return 0;
}
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;
}
void mlt_producer_prepare_next( mlt_producer self )
{
if ( mlt_producer_get_speed( self ) != 0 )
mlt_producer_seek( self, mlt_producer_position( self ) + mlt_producer_get_speed( self ) );
}
mlt_position mlt_multitrack_clip( mlt_multitrack self, mlt_whence whence, int index )
{
mlt_position position = 0;
int i = 0;
int j = 0;
mlt_position *map = calloc( 1000, sizeof( mlt_position ) );
int count = 0;
for ( i = 0; i < self->count; i ++ )
{
// Get the producer for this track
mlt_producer producer = self->list[ i ]->producer;
// If it's assigned and not a hidden track
if ( producer != NULL )
{
// Get the properties of this producer
mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
// Determine if it's a playlist
mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
// Special case consideration of playlists
if ( playlist != NULL )
{
for ( j = 0; j < mlt_playlist_count( playlist ); j ++ )
count = add_unique( map, count, mlt_playlist_clip( playlist, mlt_whence_relative_start, j ) );
count = add_unique( map, count, mlt_producer_get_out( producer ) + 1 );
}
else
{
count = add_unique( map, count, 0 );
count = add_unique( map, count, mlt_producer_get_out( producer ) + 1 );
}
}
}
// Now sort the map
qsort( map, count, sizeof( mlt_position ), position_compare );
// Now locate the requested index
switch( whence )
{
case mlt_whence_relative_start:
if ( index < count )
position = map[ index ];
else
position = map[ count - 1 ];
break;
case mlt_whence_relative_current:
position = mlt_producer_position( MLT_MULTITRACK_PRODUCER( self ) );
for ( i = 0; i < count - 2; i ++ )
if ( position >= map[ i ] && position < map[ i + 1 ] )
break;
index += i;
if ( index >= 0 && index < count )
position = map[ index ];
else if ( index < 0 )
position = map[ 0 ];
else
position = map[ count - 1 ];
break;
case mlt_whence_relative_end:
if ( index < count )
position = map[ count - index - 1 ];
else
position = map[ 0 ];
break;
}
// Free the map
free( map );
return position;
}
int mlt_service_get_frame( mlt_service self, mlt_frame_ptr frame, int index )
{
int result = 0;
// Lock the service
mlt_service_lock( self );
// Ensure that the frame is NULL
*frame = NULL;
// Only process if we have a valid service
if ( self != NULL && self->get_frame != NULL )
{
mlt_properties properties = MLT_SERVICE_PROPERTIES( self );
mlt_position in = mlt_properties_get_position( properties, "in" );
mlt_position out = mlt_properties_get_position( properties, "out" );
mlt_position position = mlt_service_identify( self ) == producer_type ? mlt_producer_position( MLT_PRODUCER( self ) ) : -1;
result = self->get_frame( self, frame, index );
if ( result == 0 )
{
mlt_properties_inc_ref( properties );
properties = MLT_FRAME_PROPERTIES( *frame );
if ( in >=0 && out > 0 )
{
mlt_properties_set_position( properties, "in", in );
mlt_properties_set_position( properties, "out", out );
}
mlt_service_apply_filters( self, *frame, 1 );
mlt_deque_push_back( MLT_FRAME_SERVICE_STACK( *frame ), self );
if ( mlt_service_identify( self ) == producer_type &&
mlt_properties_get_int( MLT_SERVICE_PROPERTIES( self ), "_need_previous_next" ) )
{
// Save the new position from self->get_frame
mlt_position new_position = mlt_producer_position( MLT_PRODUCER( self ) );
// Get the preceding frame, unfiltered
mlt_frame previous_frame;
mlt_producer_seek( MLT_PRODUCER(self), position - 1 );
result = self->get_frame( self, &previous_frame, index );
if ( !result )
mlt_properties_set_data( properties, "previous frame",
previous_frame, 0, ( mlt_destructor ) mlt_frame_close, NULL );
// Get the following frame, unfiltered
mlt_frame next_frame;
mlt_producer_seek( MLT_PRODUCER(self), position + 1 );
result = self->get_frame( self, &next_frame, index );
if ( !result )
{
mlt_properties_set_data( properties, "next frame",
next_frame, 0, ( mlt_destructor ) mlt_frame_close, NULL );
}
// Restore the new position
mlt_producer_seek( MLT_PRODUCER(self), new_position );
}
}
}
// Make sure we return a frame
if ( *frame == NULL )
*frame = mlt_frame_init( self );
// Unlock the service
mlt_service_unlock( self );
return result;
}
mlt_frame getFrame()
{
struct timeval now;
struct timespec tm;
double fps = mlt_producer_get_fps( getProducer() );
mlt_position position = mlt_producer_position( getProducer() );
mlt_frame frame = mlt_cache_get_frame( m_cache, position );
// Allow the buffer to fill to the requested initial buffer level.
if ( m_isBuffering )
{
int prefill = mlt_properties_get_int( MLT_PRODUCER_PROPERTIES( getProducer() ), "prefill" );
int buffer = mlt_properties_get_int( MLT_PRODUCER_PROPERTIES( getProducer() ), "buffer" );
m_isBuffering = false;
prefill = prefill > buffer ? buffer : prefill;
pthread_mutex_lock( &m_mutex );
while ( mlt_deque_count( m_queue ) < prefill )
{
// Wait up to buffer/fps seconds
gettimeofday( &now, NULL );
long usec = now.tv_sec * 1000000 + now.tv_usec;
usec += 1000000 * buffer / fps;
tm.tv_sec = usec / 1000000;
tm.tv_nsec = (usec % 1000000) * 1000;
if ( pthread_cond_timedwait( &m_condition, &m_mutex, &tm ) )
break;
}
pthread_mutex_unlock( &m_mutex );
}
if ( !frame )
{
// Wait if queue is empty
pthread_mutex_lock( &m_mutex );
while ( mlt_deque_count( m_queue ) < 1 )
{
// Wait up to twice frame duration
gettimeofday( &now, NULL );
long usec = now.tv_sec * 1000000 + now.tv_usec;
usec += 2000000 / fps;
tm.tv_sec = usec / 1000000;
tm.tv_nsec = (usec % 1000000) * 1000;
if ( pthread_cond_timedwait( &m_condition, &m_mutex, &tm ) )
// Stop waiting if error (timed out)
break;
}
frame = ( mlt_frame ) mlt_deque_pop_front( m_queue );
pthread_mutex_unlock( &m_mutex );
// add to cache
if ( frame )
{
mlt_frame_set_position( frame, position );
mlt_cache_put_frame( m_cache, frame );
}
}
// Set frame timestamp and properties
if ( frame )
{
mlt_profile profile = mlt_service_profile( MLT_PRODUCER_SERVICE( getProducer() ) );
mlt_properties properties = MLT_FRAME_PROPERTIES( frame );
mlt_properties_set_int( properties, "progressive", profile->progressive );
mlt_properties_set_int( properties, "meta.media.progressive", profile->progressive );
mlt_properties_set_int( properties, "top_field_first", m_topFieldFirst );
mlt_properties_set_double( properties, "aspect_ratio", mlt_profile_sar( profile ) );
mlt_properties_set_int( properties, "meta.media.sample_aspect_num", profile->sample_aspect_num );
mlt_properties_set_int( properties, "meta.media.sample_aspect_den", profile->sample_aspect_den );
mlt_properties_set_int( properties, "meta.media.frame_rate_num", profile->frame_rate_num );
mlt_properties_set_int( properties, "meta.media.frame_rate_den", profile->frame_rate_den );
mlt_properties_set_int( properties, "width", profile->width );
mlt_properties_set_int( properties, "meta.media.width", profile->width );
mlt_properties_set_int( properties, "height", profile->height );
mlt_properties_set_int( properties, "meta.media.height", profile->height );
mlt_properties_set_int( properties, "format", mlt_image_yuv422 );
mlt_properties_set_int( properties, "colorspace", m_colorspace );
mlt_properties_set_int( properties, "meta.media.colorspace", m_colorspace );
mlt_properties_set_int( properties, "audio_frequency", 48000 );
mlt_properties_set_int( properties, "audio_channels",
mlt_properties_get_int( MLT_PRODUCER_PROPERTIES( getProducer() ), "channels" ) );
}
else
mlt_log_warning( getProducer(), "buffer underrun\n" );
return frame;
}
static void transport( mlt_producer producer, mlt_consumer consumer )
{
mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
int silent = mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( consumer ), "silent" );
int progress = mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( consumer ), "progress" );
struct timespec tm = { 0, 40000000 };
int total_length = mlt_producer_get_length( producer );
int last_position = 0;
if ( mlt_properties_get_int( properties, "done" ) == 0 && !mlt_consumer_is_stopped( consumer ) )
{
if ( !silent && !progress )
{
term_init( );
fprintf( stderr, "+-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+\n" );
fprintf( stderr, "|1=-10| |2= -5| |3= -2| |4= -1| |5= 0| |6= 1| |7= 2| |8= 5| |9= 10|\n" );
fprintf( stderr, "+-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+\n" );
fprintf( stderr, "+---------------------------------------------------------------------+\n" );
fprintf( stderr, "| H = back 1 minute, L = forward 1 minute |\n" );
fprintf( stderr, "| h = previous frame, l = next frame |\n" );
fprintf( stderr, "| g = start of clip, j = next clip, k = previous clip |\n" );
fprintf( stderr, "| 0 = restart, q = quit, space = play |\n" );
fprintf( stderr, "+---------------------------------------------------------------------+\n" );
}
while( mlt_properties_get_int( properties, "done" ) == 0 && !mlt_consumer_is_stopped( consumer ) )
{
int value = ( silent || progress )? -1 : term_read( );
if ( value != -1 )
{
char string[ 2 ] = { value, 0 };
transport_action( producer, string );
}
#if (defined(__DARWIN__) || defined(WIN32)) && !defined(MELT_NOSDL)
event_handling( producer, consumer );
#endif
if ( !silent && mlt_properties_get_int( properties, "stats_off" ) == 0 )
{
if ( progress )
{
int current_position = mlt_producer_position( producer );
if ( current_position > last_position )
{
fprintf( stderr, "Current Frame: %10d, percentage: %10d%c",
current_position, 100 * current_position / total_length,
progress == 2 ? '\n' : '\r' );
last_position = current_position;
}
}
else
{
fprintf( stderr, "Current Position: %10d\r", (int)mlt_consumer_position( consumer ) );
}
fflush( stderr );
}
if ( silent || progress )
nanosleep( &tm, NULL );
}
if ( !silent )
fprintf( stderr, "\n" );
}
}
static int get_frame( mlt_producer self, mlt_frame_ptr frame, int index )
{
mlt_properties properties = MLT_PRODUCER_PROPERTIES(self);
context cx = mlt_properties_get_data( properties, "context", NULL );
if ( !cx )
{
// Allocate and initialize our context
cx = mlt_pool_alloc( sizeof( struct context_s ) );
memset( cx, 0, sizeof( *cx ) );
mlt_properties_set_data( properties, "context", cx, 0, mlt_pool_release, NULL );
cx->self = self;
char *profile_name = mlt_properties_get( properties, "profile" );
if ( !profile_name )
profile_name = mlt_properties_get( properties, "mlt_profile" );
mlt_profile profile = mlt_service_profile( MLT_PRODUCER_SERVICE( self ) );
if ( profile_name )
{
cx->profile = mlt_profile_init( profile_name );
cx->profile->is_explicit = 1;
}
else
{
cx->profile = mlt_profile_clone( profile );
cx->profile->is_explicit = 0;
}
// Encapsulate a real producer for the resource
cx->producer = mlt_factory_producer( cx->profile, NULL,
mlt_properties_get( properties, "resource" ) );
if ( ( profile_name && !strcmp( profile_name, "auto" ) ) ||
mlt_properties_get_int( properties, "autoprofile" ) )
{
mlt_profile_from_producer( cx->profile, cx->producer );
mlt_producer_close( cx->producer );
cx->producer = mlt_factory_producer( cx->profile, NULL, mlt_properties_get( properties, "resource" ) );
}
// Since we control the seeking, prevent it from seeking on its own
mlt_producer_set_speed( cx->producer, 0 );
cx->audio_position = -1;
// We will encapsulate a consumer
cx->consumer = mlt_consumer_new( cx->profile );
// Do not use _pass_list on real_time so that it defaults to 0 in the absence of
// an explicit real_time property.
mlt_properties_set_int( MLT_CONSUMER_PROPERTIES( cx->consumer ), "real_time",
mlt_properties_get_int( properties, "real_time" ) );
mlt_properties_pass_list( MLT_CONSUMER_PROPERTIES( cx->consumer ), properties,
"buffer, prefill, deinterlace_method, rescale" );
// Connect it all together
mlt_consumer_connect( cx->consumer, MLT_PRODUCER_SERVICE( cx->producer ) );
mlt_consumer_start( cx->consumer );
}
// Generate a frame
*frame = mlt_frame_init( MLT_PRODUCER_SERVICE( self ) );
if ( *frame )
{
// Seek the producer to the correct place
// Calculate our positions
double actual_position = (double) mlt_producer_frame( self );
if ( mlt_producer_get_speed( self ) != 0 )
actual_position *= mlt_producer_get_speed( self );
mlt_position need_first = floor( actual_position );
mlt_producer_seek( cx->producer,
lrint( need_first * mlt_profile_fps( cx->profile ) / mlt_producer_get_fps( self ) ) );
// Get the nested frame
mlt_frame nested_frame = mlt_consumer_rt_frame( cx->consumer );
// Stack the producer and our methods on the nested frame
mlt_frame_push_service( *frame, nested_frame );
mlt_frame_push_service( *frame, cx );
mlt_frame_push_get_image( *frame, get_image );
mlt_frame_push_audio( *frame, nested_frame );
mlt_frame_push_audio( *frame, cx );
mlt_frame_push_audio( *frame, get_audio );
// Give the returned frame temporal identity
mlt_frame_set_position( *frame, mlt_producer_position( self ) );
// Store the nested frame on the produced frame for destruction
mlt_properties frame_props = MLT_FRAME_PROPERTIES( *frame );
mlt_properties_set_data( frame_props, "_producer_consumer.frame", nested_frame, 0, (mlt_destructor) mlt_frame_close, NULL );
// Inform the normalizers about our video properties
mlt_properties_set_double( frame_props, "aspect_ratio", mlt_profile_sar( cx->profile ) );
mlt_properties_set_int( frame_props, "width", cx->profile->width );
mlt_properties_set_int( frame_props, "height", cx->profile->height );
mlt_properties_set_int( frame_props, "meta.media.width", cx->profile->width );
mlt_properties_set_int( frame_props, "meta.media.height", cx->profile->height );
mlt_properties_set_int( frame_props, "progressive", cx->profile->progressive );
}
// Calculate the next timecode
mlt_producer_prepare_next( self );
return 0;
}
static void transport_action( mlt_producer producer, char *value )
{
mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
mlt_multitrack multitrack = mlt_properties_get_data( properties, "multitrack", NULL );
mlt_consumer consumer = mlt_properties_get_data( properties, "transport_consumer", NULL );
mlt_properties jack = mlt_properties_get_data( MLT_CONSUMER_PROPERTIES( consumer ), "jack_filter", NULL );
mlt_position position = producer? mlt_producer_position( producer ) : 0;
mlt_properties_set_int( properties, "stats_off", 1 );
if ( strlen( value ) == 1 )
{
switch( value[ 0 ] )
{
case 'q':
case 'Q':
mlt_properties_set_int( properties, "done", 1 );
mlt_events_fire( jack, "jack-stop", NULL );
break;
case '0':
position = 0;
mlt_producer_set_speed( producer, 1 );
mlt_producer_seek( producer, position );
mlt_consumer_purge( consumer );
mlt_events_fire( jack, "jack-seek", &position, NULL );
break;
case '1':
mlt_producer_set_speed( producer, -10 );
break;
case '2':
mlt_producer_set_speed( producer, -5 );
break;
case '3':
mlt_producer_set_speed( producer, -2 );
break;
case '4':
mlt_producer_set_speed( producer, -1 );
break;
case '5':
mlt_producer_set_speed( producer, 0 );
mlt_consumer_purge( consumer );
mlt_producer_seek( producer, mlt_consumer_position( consumer ) + 1 );
mlt_events_fire( jack, "jack-stop", NULL );
break;
case '6':
case ' ':
if ( !jack || mlt_producer_get_speed( producer ) != 0 )
mlt_producer_set_speed( producer, 1 );
mlt_consumer_purge( consumer );
mlt_events_fire( jack, "jack-start", NULL );
break;
case '7':
mlt_producer_set_speed( producer, 2 );
break;
case '8':
mlt_producer_set_speed( producer, 5 );
break;
case '9':
mlt_producer_set_speed( producer, 10 );
break;
case 'd':
if ( multitrack != NULL )
{
int i = 0;
mlt_position last = -1;
fprintf( stderr, "\n" );
for ( i = 0; 1; i ++ )
{
position = mlt_multitrack_clip( multitrack, mlt_whence_relative_start, i );
if ( position == last )
break;
last = position;
fprintf( stderr, "%d: %d\n", i, (int)position );
}
}
break;
case 'g':
if ( multitrack != NULL )
{
position = mlt_multitrack_clip( multitrack, mlt_whence_relative_current, 0 );
mlt_producer_seek( producer, position );
mlt_consumer_purge( consumer );
mlt_events_fire( jack, "jack-seek", &position, NULL );
}
break;
case 'H':
if ( producer != NULL )
{
position -= mlt_producer_get_fps( producer ) * 60;
mlt_consumer_purge( consumer );
mlt_producer_seek( producer, position );
mlt_events_fire( jack, "jack-seek", &position, NULL );
}
break;
case 'h':
if ( producer != NULL )
{
position--;
mlt_producer_set_speed( producer, 0 );
mlt_consumer_purge( consumer );
mlt_producer_seek( producer, position );
mlt_events_fire( jack, "jack-stop", NULL );
mlt_events_fire( jack, "jack-seek", &position, NULL );
}
break;
case 'j':
if ( multitrack != NULL )
{
position = mlt_multitrack_clip( multitrack, mlt_whence_relative_current, 1 );
mlt_consumer_purge( consumer );
mlt_producer_seek( producer, position );
mlt_events_fire( jack, "jack-seek", &position, NULL );
}
break;
case 'k':
if ( multitrack != NULL )
{
position = mlt_multitrack_clip( multitrack, mlt_whence_relative_current, -1 );
mlt_consumer_purge( consumer );
mlt_producer_seek( producer, position );
mlt_events_fire( jack, "jack-seek", &position, NULL );
}
break;
case 'l':
if ( producer != NULL )
{
position++;
mlt_consumer_purge( consumer );
if ( mlt_producer_get_speed( producer ) != 0 )
{
mlt_producer_set_speed( producer, 0 );
mlt_events_fire( jack, "jack-stop", NULL );
}
else
{
mlt_producer_seek( producer, position );
mlt_events_fire( jack, "jack-seek", &position, NULL );
}
}
break;
case 'L':
if ( producer != NULL )
{
position += mlt_producer_get_fps( producer ) * 60;
mlt_consumer_purge( consumer );
mlt_producer_seek( producer, position );
mlt_events_fire( jack, "jack-seek", &position, NULL );
}
break;
}
mlt_properties_set_int( MLT_CONSUMER_PROPERTIES( consumer ), "refresh", 1 );
}
mlt_properties_set_int( properties, "stats_off", 0 );
}
static void transport_action( mlt_producer producer, char *value )
{
mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
mlt_multitrack multitrack = mlt_properties_get_data( properties, "multitrack", NULL );
mlt_consumer consumer = mlt_properties_get_data( properties, "transport_consumer", NULL );
mlt_properties_set_int( properties, "stats_off", 1 );
if ( strlen( value ) == 1 )
{
switch( value[ 0 ] )
{
case 'q':
mlt_properties_set_int( properties, "done", 1 );
break;
case '0':
mlt_producer_set_speed( producer, 1 );
mlt_producer_seek( producer, 0 );
break;
case '1':
mlt_producer_set_speed( producer, -10 );
break;
case '2':
mlt_producer_set_speed( producer, -5 );
break;
case '3':
mlt_producer_set_speed( producer, -2 );
break;
case '4':
mlt_producer_set_speed( producer, -1 );
break;
case '5':
mlt_producer_set_speed( producer, 0 );
break;
case '6':
case ' ':
mlt_producer_set_speed( producer, 1 );
break;
case '7':
mlt_producer_set_speed( producer, 2 );
break;
case '8':
mlt_producer_set_speed( producer, 5 );
break;
case '9':
mlt_producer_set_speed( producer, 10 );
break;
case 'd':
if ( multitrack != NULL )
{
int i = 0;
mlt_position last = -1;
fprintf( stderr, "\n" );
for ( i = 0; 1; i ++ )
{
mlt_position time = mlt_multitrack_clip( multitrack, mlt_whence_relative_start, i );
if ( time == last )
break;
last = time;
fprintf( stderr, "%d: %d\n", i, (int)time );
}
}
break;
case 'g':
if ( multitrack != NULL )
{
mlt_position time = mlt_multitrack_clip( multitrack, mlt_whence_relative_current, 0 );
mlt_producer_seek( producer, time );
}
break;
case 'H':
if ( producer != NULL )
{
mlt_position position = mlt_producer_position( producer );
mlt_producer_seek( producer, position - ( mlt_producer_get_fps( producer ) * 60 ) );
}
break;
case 'h':
if ( producer != NULL )
{
mlt_position position = mlt_producer_position( producer );
mlt_producer_set_speed( producer, 0 );
mlt_producer_seek( producer, position - 1 );
}
break;
case 'j':
if ( multitrack != NULL )
{
mlt_position time = mlt_multitrack_clip( multitrack, mlt_whence_relative_current, 1 );
mlt_producer_seek( producer, time );
}
break;
case 'k':
if ( multitrack != NULL )
{
mlt_position time = mlt_multitrack_clip( multitrack, mlt_whence_relative_current, -1 );
mlt_producer_seek( producer, time );
}
break;
case 'l':
if ( producer != NULL )
{
mlt_position position = mlt_producer_position( producer );
if ( mlt_producer_get_speed( producer ) != 0 )
mlt_producer_set_speed( producer, 0 );
else
mlt_producer_seek( producer, position + 1 );
}
break;
case 'L':
if ( producer != NULL )
{
mlt_position position = mlt_producer_position( producer );
mlt_producer_seek( producer, position + ( mlt_producer_get_fps( producer ) * 60 ) );
}
break;
}
mlt_properties_set_int( MLT_CONSUMER_PROPERTIES( consumer ), "refresh", 1 );
}
mlt_properties_set_int( properties, "stats_off", 0 );
}
