*/
static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int index );
-static int mlt_playlist_unmix( mlt_playlist this, int clip );
-static int mlt_playlist_resize_mix( mlt_playlist this, int clip, int in, int out );
+static int mlt_playlist_unmix( mlt_playlist self, int clip );
+static int mlt_playlist_resize_mix( mlt_playlist self, int clip, int in, int out );
+static void mlt_playlist_next( mlt_listener listener, mlt_properties owner, mlt_service self, void **args );
/** Construct a playlist.
*
mlt_playlist mlt_playlist_init( )
{
- mlt_playlist this = calloc( sizeof( struct mlt_playlist_s ), 1 );
- if ( this != NULL )
+ mlt_playlist self = calloc( 1, sizeof( struct mlt_playlist_s ) );
+ if ( self != NULL )
{
- mlt_producer producer = &this->parent;
+ mlt_producer producer = &self->parent;
// Construct the producer
- mlt_producer_init( producer, this );
+ if ( mlt_producer_init( producer, self ) != 0 ) goto error1;
// Override the producer get_frame
producer->get_frame = producer_get_frame;
// Define the destructor
producer->close = ( mlt_destructor )mlt_playlist_close;
- producer->close_object = this;
+ producer->close_object = self;
// Initialise blank
- mlt_producer_init( &this->blank, NULL );
- mlt_properties_set( MLT_PRODUCER_PROPERTIES( &this->blank ), "mlt_service", "blank" );
- mlt_properties_set( MLT_PRODUCER_PROPERTIES( &this->blank ), "resource", "blank" );
+ if ( mlt_producer_init( &self->blank, NULL ) != 0 ) goto error1;
+ mlt_properties_set( MLT_PRODUCER_PROPERTIES( &self->blank ), "mlt_service", "blank" );
+ mlt_properties_set( MLT_PRODUCER_PROPERTIES( &self->blank ), "resource", "blank" );
// Indicate that this producer is a playlist
- mlt_properties_set_data( MLT_PLAYLIST_PROPERTIES( this ), "playlist", this, 0, NULL, NULL );
+ mlt_properties_set_data( MLT_PLAYLIST_PROPERTIES( self ), "playlist", self, 0, NULL, NULL );
// Specify the eof condition
- mlt_properties_set( MLT_PLAYLIST_PROPERTIES( this ), "eof", "pause" );
- mlt_properties_set( MLT_PLAYLIST_PROPERTIES( this ), "resource", "<playlist>" );
- mlt_properties_set( MLT_PLAYLIST_PROPERTIES( this ), "mlt_type", "mlt_producer" );
- mlt_properties_set_position( MLT_PLAYLIST_PROPERTIES( this ), "in", 0 );
- mlt_properties_set_position( MLT_PLAYLIST_PROPERTIES( this ), "out", -1 );
- mlt_properties_set_position( MLT_PLAYLIST_PROPERTIES( this ), "length", 0 );
-
- this->size = 10;
- this->list = malloc( this->size * sizeof( playlist_entry * ) );
+ mlt_properties_set( MLT_PLAYLIST_PROPERTIES( self ), "eof", "pause" );
+ mlt_properties_set( MLT_PLAYLIST_PROPERTIES( self ), "resource", "<playlist>" );
+ mlt_properties_set( MLT_PLAYLIST_PROPERTIES( self ), "mlt_type", "mlt_producer" );
+ mlt_properties_set_position( MLT_PLAYLIST_PROPERTIES( self ), "in", 0 );
+ mlt_properties_set_position( MLT_PLAYLIST_PROPERTIES( self ), "out", -1 );
+ mlt_properties_set_position( MLT_PLAYLIST_PROPERTIES( self ), "length", 0 );
+
+ self->size = 10;
+ self->list = calloc( self->size, sizeof( playlist_entry * ) );
+ if ( self->list == NULL ) goto error2;
+
+ mlt_events_register( MLT_PLAYLIST_PROPERTIES( self ), "playlist-next", (mlt_transmitter) mlt_playlist_next );
}
- return this;
+ return self;
+error2:
+ free( self->list );
+error1:
+ free( self );
+ return NULL;
+}
+
+/** Construct a playlist with a profile.
+ *
+ * Sets the resource property to "<playlist>".
+ * Set the mlt_type to property to "mlt_producer".
+ * \public \memberof mlt_playlist_s
+ * \param profile the profile to use with the profile
+ * \return a new playlist
+ */
+
+mlt_playlist mlt_playlist_new( mlt_profile profile )
+{
+ mlt_playlist self = mlt_playlist_init();
+ if ( self )
+ mlt_properties_set_data( MLT_PLAYLIST_PROPERTIES( self ), "_profile", profile, 0, NULL, NULL );
+ return self;
}
/** Get the producer associated to this playlist.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \return the producer interface
* \see MLT_PLAYLIST_PRODUCER
*/
-mlt_producer mlt_playlist_producer( mlt_playlist this )
+mlt_producer mlt_playlist_producer( mlt_playlist self )
{
- return this != NULL ? &this->parent : NULL;
+ return self != NULL ? &self->parent : NULL;
}
/** Get the service associated to this playlist.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \return the service interface
* \see MLT_PLAYLIST_SERVICE
*/
-mlt_service mlt_playlist_service( mlt_playlist this )
+mlt_service mlt_playlist_service( mlt_playlist self )
{
- return MLT_PRODUCER_SERVICE( &this->parent );
+ return MLT_PRODUCER_SERVICE( &self->parent );
}
/** Get the properties associated to this playlist.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \return the playlist's properties list
* \see MLT_PLAYLIST_PROPERTIES
*/
-mlt_properties mlt_playlist_properties( mlt_playlist this )
+mlt_properties mlt_playlist_properties( mlt_playlist self )
{
- return MLT_PRODUCER_PROPERTIES( &this->parent );
+ return MLT_PRODUCER_PROPERTIES( &self->parent );
}
/** Refresh the playlist after a clip has been changed.
*
* \private \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \return false
*/
-static int mlt_playlist_virtual_refresh( mlt_playlist this )
+static int mlt_playlist_virtual_refresh( mlt_playlist self )
{
// Obtain the properties
- mlt_properties properties = MLT_PLAYLIST_PROPERTIES( this );
+ mlt_properties properties = MLT_PLAYLIST_PROPERTIES( self );
int i = 0;
mlt_position frame_count = 0;
- for ( i = 0; i < this->count; i ++ )
+ for ( i = 0; i < self->count; i ++ )
{
// Get the producer
- mlt_producer producer = this->list[ i ]->producer;
+ mlt_producer producer = self->list[ i ]->producer;
if ( producer )
{
- int current_length = mlt_producer_get_out( producer ) - mlt_producer_get_in( producer ) + 1;
+ int current_length = mlt_producer_get_playtime( producer );
// Check if the length of the producer has changed
- if ( this->list[ i ]->frame_in != mlt_producer_get_in( producer ) ||
- this->list[ i ]->frame_out != mlt_producer_get_out( producer ) )
+ if ( self->list[ i ]->frame_in != mlt_producer_get_in( producer ) ||
+ self->list[ i ]->frame_out != mlt_producer_get_out( producer ) )
{
// This clip should be removed...
if ( current_length < 1 )
{
- this->list[ i ]->frame_in = 0;
- this->list[ i ]->frame_out = -1;
- this->list[ i ]->frame_count = 0;
+ self->list[ i ]->frame_in = 0;
+ self->list[ i ]->frame_out = -1;
+ self->list[ i ]->frame_count = 0;
}
else
{
- this->list[ i ]->frame_in = mlt_producer_get_in( producer );
- this->list[ i ]->frame_out = mlt_producer_get_out( producer );
- this->list[ i ]->frame_count = current_length;
+ self->list[ i ]->frame_in = mlt_producer_get_in( producer );
+ self->list[ i ]->frame_out = mlt_producer_get_out( producer );
+ self->list[ i ]->frame_count = current_length;
}
// Update the producer_length
- this->list[ i ]->producer_length = current_length;
+ self->list[ i ]->producer_length = current_length;
}
}
// Calculate the frame_count
- this->list[ i ]->frame_count = ( this->list[ i ]->frame_out - this->list[ i ]->frame_in + 1 ) * this->list[ i ]->repeat;
+ self->list[ i ]->frame_count = ( self->list[ i ]->frame_out - self->list[ i ]->frame_in + 1 ) * self->list[ i ]->repeat;
- // Update the frame_count for this clip
- frame_count += this->list[ i ]->frame_count;
+ // Update the frame_count for self clip
+ frame_count += self->list[ i ]->frame_count;
}
// Refresh all properties
* Refreshes the playlist whenever an entry receives producer-changed.
* \private \memberof mlt_playlist_s
* \param producer a producer
- * \param this a playlist
+ * \param self a playlist
*/
-static void mlt_playlist_listener( mlt_producer producer, mlt_playlist this )
+static void mlt_playlist_listener( mlt_producer producer, mlt_playlist self )
{
- mlt_playlist_virtual_refresh( this );
+ mlt_playlist_virtual_refresh( self );
}
/** Append to the virtual playlist.
*
* \private \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param source a producer
* \param in the producer's starting time
* \param out the producer's ending time
* \return true if there was an error
*/
-static int mlt_playlist_virtual_append( mlt_playlist this, mlt_producer source, mlt_position in, mlt_position out )
+static int mlt_playlist_virtual_append( mlt_playlist self, mlt_producer source, mlt_position in, mlt_position out )
{
mlt_producer producer = NULL;
mlt_properties properties = NULL;
// If we have a cut, then use the in/out points from the cut
if ( mlt_producer_is_blank( source ) )
{
+ mlt_position length = out - in + 1;
+
// Make sure the blank is long enough to accomodate the length specified
- if ( out - in + 1 > mlt_producer_get_length( &this->blank ) )
+ if ( length > mlt_producer_get_length( &self->blank ) )
{
- mlt_properties blank_props = MLT_PRODUCER_PROPERTIES( &this->blank );
+ mlt_properties blank_props = MLT_PRODUCER_PROPERTIES( &self->blank );
mlt_events_block( blank_props, blank_props );
- mlt_producer_set_in_and_out( &this->blank, in, out );
+ mlt_producer_set_in_and_out( &self->blank, in, out );
mlt_events_unblock( blank_props, blank_props );
}
- // Now make sure the cut comes from this this->blank
+ // Now make sure the cut comes from this self->blank
if ( source == NULL )
{
- producer = mlt_producer_cut( &this->blank, in, out );
+ producer = mlt_producer_cut( &self->blank, in, out );
}
- else if ( !mlt_producer_is_cut( source ) || mlt_producer_cut_parent( source ) != &this->blank )
+ else if ( !mlt_producer_is_cut( source ) || mlt_producer_cut_parent( source ) != &self->blank )
{
- producer = mlt_producer_cut( &this->blank, in, out );
+ producer = mlt_producer_cut( &self->blank, in, out );
}
else
{
}
properties = MLT_PRODUCER_PROPERTIES( producer );
+
+ // Make sure this cut of blank is long enough
+ if ( length > mlt_producer_get_length( producer ) )
+ mlt_properties_set_int( properties, "length", length );
}
else if ( mlt_producer_is_cut( source ) )
{
producer = source;
- if ( in == -1 )
+ if ( in < 0 )
in = mlt_producer_get_in( producer );
- if ( out == -1 || out > mlt_producer_get_out( producer ) )
+ if ( out < 0 || out > mlt_producer_get_out( producer ) )
out = mlt_producer_get_out( producer );
properties = MLT_PRODUCER_PROPERTIES( producer );
mlt_properties_inc_ref( properties );
else
{
producer = mlt_producer_cut( source, in, out );
- if ( in == -1 || in < mlt_producer_get_in( producer ) )
+ if ( in < 0 || in < mlt_producer_get_in( producer ) )
in = mlt_producer_get_in( producer );
- if ( out == -1 || out > mlt_producer_get_out( producer ) )
+ if ( out < 0 || out > mlt_producer_get_out( producer ) )
out = mlt_producer_get_out( producer );
properties = MLT_PRODUCER_PROPERTIES( producer );
}
}
// Check that we have room
- if ( this->count >= this->size )
+ if ( self->count >= self->size )
{
int i;
- this->list = realloc( this->list, ( this->size + 10 ) * sizeof( playlist_entry * ) );
- for ( i = this->size; i < this->size + 10; i ++ ) this->list[ i ] = NULL;
- this->size += 10;
+ self->list = realloc( self->list, ( self->size + 10 ) * sizeof( playlist_entry * ) );
+ for ( i = self->size; i < self->size + 10; i ++ ) self->list[ i ] = NULL;
+ self->size += 10;
}
// Create the entry
- this->list[ this->count ] = calloc( sizeof( playlist_entry ), 1 );
- if ( this->list[ this->count ] != NULL )
+ self->list[ self->count ] = calloc( 1, sizeof( playlist_entry ) );
+ if ( self->list[ self->count ] != NULL )
{
- this->list[ this->count ]->producer = producer;
- this->list[ this->count ]->frame_in = in;
- this->list[ this->count ]->frame_out = out;
- this->list[ this->count ]->frame_count = out - in + 1;
- this->list[ this->count ]->repeat = 1;
- this->list[ this->count ]->producer_length = mlt_producer_get_out( producer ) - mlt_producer_get_in( producer ) + 1;
- this->list[ this->count ]->event = mlt_events_listen( parent, this, "producer-changed", ( mlt_listener )mlt_playlist_listener );
- mlt_event_inc_ref( this->list[ this->count ]->event );
+ self->list[ self->count ]->producer = producer;
+ self->list[ self->count ]->frame_in = in;
+ self->list[ self->count ]->frame_out = out;
+ self->list[ self->count ]->frame_count = out - in + 1;
+ self->list[ self->count ]->repeat = 1;
+ self->list[ self->count ]->producer_length = mlt_producer_get_playtime( producer );
+ self->list[ self->count ]->event = mlt_events_listen( parent, self, "producer-changed", ( mlt_listener )mlt_playlist_listener );
+ mlt_event_inc_ref( self->list[ self->count ]->event );
mlt_properties_set( properties, "eof", "pause" );
mlt_producer_set_speed( producer, 0 );
- this->count ++;
+ self->count ++;
}
- return mlt_playlist_virtual_refresh( this );
+ return mlt_playlist_virtual_refresh( self );
}
/** Locate a producer by index.
*
* \private \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param[in, out] position the time at which to locate the producer, returns the time relative to the producer's starting point
* \param[out] clip the index of the playlist entry
* \param[out] total the duration of the playlist up to and including this producer
* \return a producer or NULL if not found
*/
-static mlt_producer mlt_playlist_locate( mlt_playlist this, mlt_position *position, int *clip, int *total )
+static mlt_producer mlt_playlist_locate( mlt_playlist self, mlt_position *position, int *clip, int *total )
{
// Default producer to NULL
mlt_producer producer = NULL;
// Loop for each producer until found
- for ( *clip = 0; *clip < this->count; *clip += 1 )
+ for ( *clip = 0; *clip < self->count; *clip += 1 )
{
// Increment the total
- *total += this->list[ *clip ]->frame_count;
+ *total += self->list[ *clip ]->frame_count;
// Check if the position indicates that we have found the clip
// Note that 0 length clips get skipped automatically
- if ( *position < this->list[ *clip ]->frame_count )
+ if ( *position < self->list[ *clip ]->frame_count )
{
// Found it, now break
- producer = this->list[ *clip ]->producer;
+ producer = self->list[ *clip ]->producer;
break;
}
else
{
- // Decrement position by length of this entry
- *position -= this->list[ *clip ]->frame_count;
+ // Decrement position by length of self entry
+ *position -= self->list[ *clip ]->frame_count;
}
}
return producer;
}
+/** The transmitter for the producer-next event
+ *
+ * Invokes the listener.
+ *
+ * \private \memberof mlt_playlist_s
+ * \param listener a function pointer that will be invoked
+ * \param owner the events object that will be passed to \p listener
+ * \param self a service that will be passed to \p listener
+ * \param args an array of pointers.
+ */
+
+static void mlt_playlist_next( mlt_listener listener, mlt_properties owner, mlt_service self, void **args )
+{
+ if ( listener )
+ listener( owner, self, args[ 0 ] );
+}
+
+
/** Seek in the virtual playlist.
*
* This gets the producer at the current position and seeks on the producer
* closing producers previous to the preceding playlist if the autoclose
* property is set.
* \private \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param[out] progressive true if the producer should be displayed progressively
* \return the service interface of the producer at the play head
* \see producer_get_frame
*/
-static mlt_service mlt_playlist_virtual_seek( mlt_playlist this, int *progressive )
+static mlt_service mlt_playlist_virtual_seek( mlt_playlist self, int *progressive )
{
// Map playlist position to real producer in virtual playlist
- mlt_position position = mlt_producer_frame( &this->parent );
+ mlt_position position = mlt_producer_frame( &self->parent );
// Keep the original position since we change it while iterating through the list
mlt_position original = position;
int total = 0;
// Locate the producer for the position
- mlt_producer producer = mlt_playlist_locate( this, &position, &i, &total );
+ mlt_producer producer = mlt_playlist_locate( self, &position, &i, &total );
// Get the properties
- mlt_properties properties = MLT_PLAYLIST_PROPERTIES( this );
+ mlt_properties properties = MLT_PLAYLIST_PROPERTIES( self );
// Automatically close previous producers if requested
if ( i > 1 // keep immediate previous in case app wants to get info about what just finished
// They might have jumped ahead!
for ( j = 0; j < i - 1; j++ )
{
- mlt_service_lock( MLT_PRODUCER_SERVICE( this->list[ j ]->producer ) );
- mlt_producer p = this->list[ j ]->producer;
+ mlt_service_lock( MLT_PRODUCER_SERVICE( self->list[ j ]->producer ) );
+ mlt_producer p = self->list[ j ]->producer;
if ( p )
{
- this->list[ j ]->producer = NULL;
+ self->list[ j ]->producer = NULL;
mlt_service_unlock( MLT_PRODUCER_SERVICE( p ) );
mlt_producer_close( p );
}
// Seek in real producer to relative position
if ( producer != NULL )
{
- int count = this->list[ i ]->frame_count / this->list[ i ]->repeat;
+ int count = self->list[ i ]->frame_count / self->list[ i ]->repeat;
*progressive = count == 1;
mlt_producer_seek( producer, (int)position % count );
}
else if ( !strcmp( eof, "pause" ) && total > 0 )
{
- playlist_entry *entry = this->list[ this->count - 1 ];
+ playlist_entry *entry = self->list[ self->count - 1 ];
int count = entry->frame_count / entry->repeat;
- mlt_producer this_producer = MLT_PLAYLIST_PRODUCER( this );
- mlt_producer_seek( this_producer, original - 1 );
+ mlt_producer self_producer = MLT_PLAYLIST_PRODUCER( self );
+ mlt_producer_seek( self_producer, original - 1 );
producer = entry->producer;
mlt_producer_seek( producer, (int)entry->frame_out % count );
- mlt_producer_set_speed( this_producer, 0 );
+ mlt_producer_set_speed( self_producer, 0 );
mlt_producer_set_speed( producer, 0 );
*progressive = count == 1;
}
else if ( !strcmp( eof, "loop" ) && total > 0 )
{
- playlist_entry *entry = this->list[ 0 ];
- mlt_producer this_producer = MLT_PLAYLIST_PRODUCER( this );
- mlt_producer_seek( this_producer, 0 );
+ playlist_entry *entry = self->list[ 0 ];
+ mlt_producer self_producer = MLT_PLAYLIST_PRODUCER( self );
+ mlt_producer_seek( self_producer, 0 );
producer = entry->producer;
mlt_producer_seek( producer, 0 );
}
else
{
- producer = &this->blank;
+ producer = &self->blank;
}
+ // Determine if we have moved to the next entry in the playlist.
+ if ( original == total - 2 )
+ mlt_events_fire( properties, "playlist-next", i, NULL );
+
return MLT_PRODUCER_SERVICE( producer );
}
/** Invoked when a producer indicates that it has prematurely reached its end.
*
* \private \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \return a producer
* \see producer_get_frame
*/
-static mlt_producer mlt_playlist_virtual_set_out( mlt_playlist this )
+static mlt_producer mlt_playlist_virtual_set_out( mlt_playlist self )
{
// Default producer to blank
- mlt_producer producer = &this->blank;
+ mlt_producer producer = &self->blank;
// Map playlist position to real producer in virtual playlist
- mlt_position position = mlt_producer_frame( &this->parent );
+ mlt_position position = mlt_producer_frame( &self->parent );
// Loop through the virtual playlist
int i = 0;
- for ( i = 0; i < this->count; i ++ )
+ for ( i = 0; i < self->count; i ++ )
{
- if ( position < this->list[ i ]->frame_count )
+ if ( position < self->list[ i ]->frame_count )
{
// Found it, now break
- producer = this->list[ i ]->producer;
+ producer = self->list[ i ]->producer;
break;
}
else
{
// Decrement position by length of this entry
- position -= this->list[ i ]->frame_count;
+ position -= self->list[ i ]->frame_count;
}
}
// Seek in real producer to relative position
- if ( i < this->count && this->list[ i ]->frame_out != position )
+ if ( i < self->count && self->list[ i ]->frame_out != position )
{
// Update the frame_count for the changed clip (hmmm)
- this->list[ i ]->frame_out = position;
- this->list[ i ]->frame_count = this->list[ i ]->frame_out - this->list[ i ]->frame_in + 1;
+ self->list[ i ]->frame_out = position;
+ self->list[ i ]->frame_count = self->list[ i ]->frame_out - self->list[ i ]->frame_in + 1;
// Refresh the playlist
- mlt_playlist_virtual_refresh( this );
+ mlt_playlist_virtual_refresh( self );
}
return producer;
/** Obtain the current clips index.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \return the index of the playlist entry at the current position
*/
-int mlt_playlist_current_clip( mlt_playlist this )
+int mlt_playlist_current_clip( mlt_playlist self )
{
// Map playlist position to real producer in virtual playlist
- mlt_position position = mlt_producer_frame( &this->parent );
+ mlt_position position = mlt_producer_frame( &self->parent );
// Loop through the virtual playlist
int i = 0;
- for ( i = 0; i < this->count; i ++ )
+ for ( i = 0; i < self->count; i ++ )
{
- if ( position < this->list[ i ]->frame_count )
+ if ( position < self->list[ i ]->frame_count )
{
// Found it, now break
break;
else
{
// Decrement position by length of this entry
- position -= this->list[ i ]->frame_count;
+ position -= self->list[ i ]->frame_count;
}
}
/** Obtain the current clips producer.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \return the producer at the current position
*/
-mlt_producer mlt_playlist_current( mlt_playlist this )
+mlt_producer mlt_playlist_current( mlt_playlist self )
{
- int i = mlt_playlist_current_clip( this );
- if ( i < this->count )
- return this->list[ i ]->producer;
+ int i = mlt_playlist_current_clip( self );
+ if ( i < self->count )
+ return self->list[ i ]->producer;
else
- return &this->blank;
+ return &self->blank;
}
/** Get the position which corresponds to the start of the next clip.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param whence the location from which to make the index relative:
* start of playlist, end of playlist, or current position
* \param index the playlist entry index relative to whence
* \return the time at which the referenced clip starts
*/
-mlt_position mlt_playlist_clip( mlt_playlist this, mlt_whence whence, int index )
+mlt_position mlt_playlist_clip( mlt_playlist self, mlt_whence whence, int index )
{
mlt_position position = 0;
int absolute_clip = index;
break;
case mlt_whence_relative_current:
- absolute_clip = mlt_playlist_current_clip( this ) + index;
+ absolute_clip = mlt_playlist_current_clip( self ) + index;
break;
case mlt_whence_relative_end:
- absolute_clip = this->count - index;
+ absolute_clip = self->count - index;
break;
}
// Check that we're in a valid range
if ( absolute_clip < 0 )
absolute_clip = 0;
- else if ( absolute_clip > this->count )
- absolute_clip = this->count;
+ else if ( absolute_clip > self->count )
+ absolute_clip = self->count;
// Now determine the position
for ( i = 0; i < absolute_clip; i ++ )
- position += this->list[ i ]->frame_count;
+ position += self->list[ i ]->frame_count;
return position;
}
/** Get all the info about the clip specified.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param info a clip info struct
* \param index a playlist entry index
* \return true if there was an error
*/
-int mlt_playlist_get_clip_info( mlt_playlist this, mlt_playlist_clip_info *info, int index )
+int mlt_playlist_get_clip_info( mlt_playlist self, mlt_playlist_clip_info *info, int index )
{
- int error = index < 0 || index >= this->count || this->list[ index ]->producer == NULL;
+ int error = index < 0 || index >= self->count || self->list[ index ]->producer == NULL;
memset( info, 0, sizeof( mlt_playlist_clip_info ) );
if ( !error )
{
- mlt_producer producer = mlt_producer_cut_parent( this->list[ index ]->producer );
+ mlt_producer producer = mlt_producer_cut_parent( self->list[ index ]->producer );
mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
info->clip = index;
info->producer = producer;
- info->cut = this->list[ index ]->producer;
- info->start = mlt_playlist_clip( this, mlt_whence_relative_start, index );
+ info->cut = self->list[ index ]->producer;
+ info->start = mlt_playlist_clip( self, mlt_whence_relative_start, index );
info->resource = mlt_properties_get( properties, "resource" );
- info->frame_in = this->list[ index ]->frame_in;
- info->frame_out = this->list[ index ]->frame_out;
- info->frame_count = this->list[ index ]->frame_count;
- info->repeat = this->list[ index ]->repeat;
+ info->frame_in = self->list[ index ]->frame_in;
+ info->frame_out = self->list[ index ]->frame_out;
+ info->frame_count = self->list[ index ]->frame_count;
+ info->repeat = self->list[ index ]->repeat;
info->length = mlt_producer_get_length( producer );
info->fps = mlt_producer_get_fps( producer );
}
/** Get number of clips in the playlist.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \return the number of playlist entries
*/
-int mlt_playlist_count( mlt_playlist this )
+int mlt_playlist_count( mlt_playlist self )
{
- return this->count;
+ return self->count;
}
/** Clear the playlist.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \return true if there was an error
*/
-int mlt_playlist_clear( mlt_playlist this )
+int mlt_playlist_clear( mlt_playlist self )
{
int i;
- for ( i = 0; i < this->count; i ++ )
+ for ( i = 0; i < self->count; i ++ )
{
- mlt_event_close( this->list[ i ]->event );
- mlt_producer_close( this->list[ i ]->producer );
+ mlt_event_close( self->list[ i ]->event );
+ mlt_producer_close( self->list[ i ]->producer );
}
- this->count = 0;
- return mlt_playlist_virtual_refresh( this );
+ self->count = 0;
+ return mlt_playlist_virtual_refresh( self );
}
/** Append a producer to the playlist.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param producer the producer to append
* \return true if there was an error
*/
-int mlt_playlist_append( mlt_playlist this, mlt_producer producer )
+int mlt_playlist_append( mlt_playlist self, mlt_producer producer )
{
// Append to virtual list
- return mlt_playlist_virtual_append( this, producer, 0, mlt_producer_get_playtime( producer ) - 1 );
+ return mlt_playlist_virtual_append( self, producer, 0, mlt_producer_get_playtime( producer ) - 1 );
}
/** Append a producer to the playlist with in/out points.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param producer the producer to append
- * \param in the starting point on the producer
- * \param out the ending point on the producer
+ * \param in the starting point on the producer; a negative value is the same as 0
+ * \param out the ending point on the producer; a negative value is the same as producer length - 1
* \return true if there was an error
*/
-int mlt_playlist_append_io( mlt_playlist this, mlt_producer producer, mlt_position in, mlt_position out )
+int mlt_playlist_append_io( mlt_playlist self, mlt_producer producer, mlt_position in, mlt_position out )
{
// Append to virtual list
- if ( in != -1 && out != -1 )
- return mlt_playlist_virtual_append( this, producer, in, out );
+ if ( in < 0 && out < 0 )
+ return mlt_playlist_append( self, producer );
else
- return mlt_playlist_append( this, producer );
+ return mlt_playlist_virtual_append( self, producer, in, out );
}
/** Append a blank to the playlist of a given length.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
- * \param length the ending time of the blank entry, not its duration
+ * \param self a playlist
+ * \param out the ending time of the blank entry, not its duration
* \return true if there was an error
*/
-int mlt_playlist_blank( mlt_playlist this, mlt_position length )
+int mlt_playlist_blank( mlt_playlist self, mlt_position out )
{
// Append to the virtual list
- if (length >= 0)
- return mlt_playlist_virtual_append( this, &this->blank, 0, length );
+ if ( out >= 0 )
+ return mlt_playlist_virtual_append( self, &self->blank, 0, out );
+ else
+ return 1;
+}
+
+/** Append a blank item to the playlist with duration as a time string.
+ *
+ * \public \memberof mlt_playlist_s
+ * \param self a playlist
+ * \param length the duration of the blank entry as a time string
+ * \return true if there was an error
+ */
+
+int mlt_playlist_blank_time( mlt_playlist self, const char* length )
+{
+ if ( self && length )
+ {
+ mlt_properties properties = MLT_PLAYLIST_PROPERTIES( self );
+ mlt_properties_set( properties , "_blank_time", length );
+ mlt_position duration = mlt_properties_get_position( properties, "_blank_time" );
+ return mlt_playlist_blank( self, duration - 1 );
+ }
else
return 1;
}
/** Insert a producer into the playlist.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param producer the producer to insert
* \param where the producer's playlist entry index
* \param in the starting point on the producer
* \return true if there was an error
*/
-int mlt_playlist_insert( mlt_playlist this, mlt_producer producer, int where, mlt_position in, mlt_position out )
+int mlt_playlist_insert( mlt_playlist self, mlt_producer producer, int where, mlt_position in, mlt_position out )
{
// Append to end
- mlt_events_block( MLT_PLAYLIST_PROPERTIES( this ), this );
- mlt_playlist_append_io( this, producer, in, out );
+ mlt_events_block( MLT_PLAYLIST_PROPERTIES( self ), self );
+ mlt_playlist_append_io( self, producer, in, out );
// Move to the position specified
- mlt_playlist_move( this, this->count - 1, where );
- mlt_events_unblock( MLT_PLAYLIST_PROPERTIES( this ), this );
+ mlt_playlist_move( self, self->count - 1, where );
+ mlt_events_unblock( MLT_PLAYLIST_PROPERTIES( self ), self );
- return mlt_playlist_virtual_refresh( this );
+ return mlt_playlist_virtual_refresh( self );
}
/** Remove an entry in the playlist.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param where the playlist entry index
* \return true if there was an error
*/
-int mlt_playlist_remove( mlt_playlist this, int where )
+int mlt_playlist_remove( mlt_playlist self, int where )
{
- int error = where < 0 || where >= this->count;
- if ( error == 0 && mlt_playlist_unmix( this, where ) != 0 )
+ int error = where < 0 || where >= self->count;
+ if ( error == 0 && mlt_playlist_unmix( self, where ) != 0 )
{
// We need to know the current clip and the position within the playlist
- int current = mlt_playlist_current_clip( this );
- mlt_position position = mlt_producer_position( MLT_PLAYLIST_PRODUCER( this ) );
+ int current = mlt_playlist_current_clip( self );
+ mlt_position position = mlt_producer_position( MLT_PLAYLIST_PRODUCER( self ) );
// We need all the details about the clip we're removing
mlt_playlist_clip_info where_info;
- playlist_entry *entry = this->list[ where ];
+ playlist_entry *entry = self->list[ where ];
mlt_properties properties = MLT_PRODUCER_PROPERTIES( entry->producer );
// Loop variable
int i = 0;
// Get the clip info
- mlt_playlist_get_clip_info( this, &where_info, where );
-
- // Make sure the clip to be removed is valid and correct if necessary
- if ( where < 0 )
- where = 0;
- if ( where >= this->count )
- where = this->count - 1;
+ mlt_playlist_get_clip_info( self, &where_info, where );
// Reorganise the list
- for ( i = where + 1; i < this->count; i ++ )
- this->list[ i - 1 ] = this->list[ i ];
- this->count --;
+ for ( i = where + 1; i < self->count; i ++ )
+ self->list[ i - 1 ] = self->list[ i ];
+ self->count --;
if ( entry->preservation_hack == 0 )
{
// Correct position
if ( where == current )
- mlt_producer_seek( MLT_PLAYLIST_PRODUCER( this ), where_info.start );
- else if ( where < current && this->count > 0 )
- mlt_producer_seek( MLT_PLAYLIST_PRODUCER( this ), position - where_info.frame_count );
- else if ( this->count == 0 )
- mlt_producer_seek( MLT_PLAYLIST_PRODUCER( this ), 0 );
+ mlt_producer_seek( MLT_PLAYLIST_PRODUCER( self ), where_info.start );
+ else if ( where < current && self->count > 0 )
+ mlt_producer_seek( MLT_PLAYLIST_PRODUCER( self ), position - where_info.frame_count );
+ else if ( self->count == 0 )
+ mlt_producer_seek( MLT_PLAYLIST_PRODUCER( self ), 0 );
// Free the entry
free( entry );
// Refresh the playlist
- mlt_playlist_virtual_refresh( this );
+ mlt_playlist_virtual_refresh( self );
}
return error;
/** Move an entry in the playlist.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param src an entry index
* \param dest an entry index
* \return false
*/
-int mlt_playlist_move( mlt_playlist this, int src, int dest )
+int mlt_playlist_move( mlt_playlist self, int src, int dest )
{
int i;
/* We need to ensure that the requested indexes are valid and correct it as necessary */
if ( src < 0 )
src = 0;
- if ( src >= this->count )
- src = this->count - 1;
+ if ( src >= self->count )
+ src = self->count - 1;
if ( dest < 0 )
dest = 0;
- if ( dest >= this->count )
- dest = this->count - 1;
+ if ( dest >= self->count )
+ dest = self->count - 1;
- if ( src != dest && this->count > 1 )
+ if ( src != dest && self->count > 1 )
{
- int current = mlt_playlist_current_clip( this );
- mlt_position position = mlt_producer_position( MLT_PLAYLIST_PRODUCER( this ) );
+ int current = mlt_playlist_current_clip( self );
+ mlt_position position = mlt_producer_position( MLT_PLAYLIST_PRODUCER( self ) );
playlist_entry *src_entry = NULL;
// We need all the details about the current clip
mlt_playlist_clip_info current_info;
- mlt_playlist_get_clip_info( this, ¤t_info, current );
+ mlt_playlist_get_clip_info( self, ¤t_info, current );
position -= current_info.start;
if ( current == src )
else if ( current == dest )
current = src;
- src_entry = this->list[ src ];
+ src_entry = self->list[ src ];
if ( src > dest )
{
for ( i = src; i > dest; i -- )
- this->list[ i ] = this->list[ i - 1 ];
+ self->list[ i ] = self->list[ i - 1 ];
}
else
{
for ( i = src; i < dest; i ++ )
- this->list[ i ] = this->list[ i + 1 ];
+ self->list[ i ] = self->list[ i + 1 ];
}
- this->list[ dest ] = src_entry;
+ self->list[ dest ] = src_entry;
- mlt_playlist_get_clip_info( this, ¤t_info, current );
- mlt_producer_seek( MLT_PLAYLIST_PRODUCER( this ), current_info.start + position );
- mlt_playlist_virtual_refresh( this );
+ mlt_playlist_get_clip_info( self, ¤t_info, current );
+ mlt_producer_seek( MLT_PLAYLIST_PRODUCER( self ), current_info.start + position );
+ mlt_playlist_virtual_refresh( self );
}
return 0;
/** Repeat the specified clip n times.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param clip a playlist entry index
* \param repeat the number of times to repeat the clip
* \return true if there was an error
*/
-int mlt_playlist_repeat_clip( mlt_playlist this, int clip, int repeat )
+int mlt_playlist_repeat_clip( mlt_playlist self, int clip, int repeat )
{
- int error = repeat < 1 || clip < 0 || clip >= this->count;
+ int error = repeat < 1 || clip < 0 || clip >= self->count;
if ( error == 0 )
{
- playlist_entry *entry = this->list[ clip ];
+ playlist_entry *entry = self->list[ clip ];
entry->repeat = repeat;
- mlt_playlist_virtual_refresh( this );
+ mlt_playlist_virtual_refresh( self );
}
return error;
}
/** Resize the specified clip.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param clip the index of the playlist entry
- * \param in the new starting time on the clip's producer
- * \param out the new ending time on the clip's producer
+ * \param in the new starting time on the clip's producer; a negative value is the same as 0
+ * \param out the new ending time on the clip's producer; a negative value is the same as length - 1
* \return true if there was an error
*/
-int mlt_playlist_resize_clip( mlt_playlist this, int clip, mlt_position in, mlt_position out )
+int mlt_playlist_resize_clip( mlt_playlist self, int clip, mlt_position in, mlt_position out )
{
- int error = clip < 0 || clip >= this->count;
- if ( error == 0 && mlt_playlist_resize_mix( this, clip, in, out ) != 0 )
+ int error = clip < 0 || clip >= self->count;
+ if ( error == 0 && mlt_playlist_resize_mix( self, clip, in, out ) != 0 )
{
- playlist_entry *entry = this->list[ clip ];
+ playlist_entry *entry = self->list[ clip ];
mlt_producer producer = entry->producer;
- mlt_properties properties = MLT_PLAYLIST_PROPERTIES( this );
+ mlt_properties properties = MLT_PLAYLIST_PROPERTIES( self );
mlt_events_block( properties, properties );
if ( mlt_producer_is_blank( producer ) )
{
- // Make sure the blank is long enough to accomodate the length specified
- if ( out - in + 1 > mlt_producer_get_length( &this->blank ) )
+ mlt_position length = out - in + 1;
+
+ // Make sure the parent blank is long enough to accomodate the length specified
+ if ( length > mlt_producer_get_length( &self->blank ) )
{
- mlt_properties blank_props = MLT_PRODUCER_PROPERTIES( &this->blank );
- mlt_properties_set_int( blank_props, "length", out - in + 1 );
- mlt_properties_set_int( MLT_PRODUCER_PROPERTIES( producer ), "length", out - in + 1 );
- mlt_producer_set_in_and_out( &this->blank, 0, out - in );
+ mlt_properties blank_props = MLT_PRODUCER_PROPERTIES( &self->blank );
+ mlt_properties_set_int( blank_props, "length", length );
+ mlt_producer_set_in_and_out( &self->blank, 0, out - in );
}
+ // Make sure this cut of blank is long enough
+ if ( length > mlt_producer_get_length( producer ) )
+ mlt_properties_set_int( MLT_PRODUCER_PROPERTIES( producer ), "length", length );
}
- if ( in <= -1 )
+ if ( in < 0 )
in = 0;
- if ( out <= -1 || out >= mlt_producer_get_length( producer ) )
+ if ( out < 0 || out >= mlt_producer_get_length( producer ) )
out = mlt_producer_get_length( producer ) - 1;
if ( out < in )
mlt_producer_set_in_and_out( producer, in, out );
mlt_events_unblock( properties, properties );
- mlt_playlist_virtual_refresh( this );
+ mlt_playlist_virtual_refresh( self );
}
return error;
}
*
* This splits after the specified frame.
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param clip the index of the playlist entry
* \param position the time at which to split relative to the beginning of the clip or its end if negative
* \return true if there was an error
*/
-int mlt_playlist_split( mlt_playlist this, int clip, mlt_position position )
+int mlt_playlist_split( mlt_playlist self, int clip, mlt_position position )
{
- int error = clip < 0 || clip >= this->count;
+ int error = clip < 0 || clip >= self->count;
if ( error == 0 )
{
- playlist_entry *entry = this->list[ clip ];
+ playlist_entry *entry = self->list[ clip ];
position = position < 0 ? entry->frame_count + position - 1 : position;
if ( position >= 0 && position < entry->frame_count - 1 )
{
int in = entry->frame_in;
int out = entry->frame_out;
- mlt_events_block( MLT_PLAYLIST_PROPERTIES( this ), this );
- mlt_playlist_resize_clip( this, clip, in, in + position );
+ mlt_events_block( MLT_PLAYLIST_PROPERTIES( self ), self );
+ mlt_playlist_resize_clip( self, clip, in, in + position );
if ( !mlt_producer_is_blank( entry->producer ) )
{
int i = 0;
mlt_properties entry_properties = MLT_PRODUCER_PROPERTIES( entry->producer );
mlt_producer split = mlt_producer_cut( entry->producer, in + position + 1, out );
mlt_properties split_properties = MLT_PRODUCER_PROPERTIES( split );
- mlt_playlist_insert( this, split, clip + 1, 0, -1 );
+ mlt_playlist_insert( self, split, clip + 1, 0, -1 );
+ mlt_properties_lock( entry_properties );
for ( i = 0; i < mlt_properties_count( entry_properties ); i ++ )
{
char *name = mlt_properties_get_name( entry_properties, i );
if ( name != NULL && !strncmp( name, "meta.", 5 ) )
mlt_properties_set( split_properties, name, mlt_properties_get_value( entry_properties, i ) );
}
+ mlt_properties_unlock( entry_properties );
mlt_producer_close( split );
}
else
{
- mlt_playlist_insert( this, &this->blank, clip + 1, 0, out - position - 1 );
+ mlt_playlist_insert( self, &self->blank, clip + 1, 0, out - position - 1 );
}
- mlt_events_unblock( MLT_PLAYLIST_PROPERTIES( this ), this );
- mlt_playlist_virtual_refresh( this );
+ mlt_events_unblock( MLT_PLAYLIST_PROPERTIES( self ), self );
+ mlt_playlist_virtual_refresh( self );
}
else
{
/** Split the playlist at the absolute position.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param position the time at which to split relative to the beginning of the clip
* \param left true to split before the frame starting at position
* \return true if there was an error
*/
-int mlt_playlist_split_at( mlt_playlist this, mlt_position position, int left )
+int mlt_playlist_split_at( mlt_playlist self, mlt_position position, int left )
{
- int result = this == NULL ? -1 : 0;
+ int result = self == NULL ? -1 : 0;
if ( !result )
{
- if ( position >= 0 && position < mlt_producer_get_playtime( MLT_PLAYLIST_PRODUCER( this ) ) )
+ if ( position >= 0 && position < mlt_producer_get_playtime( MLT_PLAYLIST_PRODUCER( self ) ) )
{
- int clip = mlt_playlist_get_clip_index_at( this, position );
+ int clip = mlt_playlist_get_clip_index_at( self, position );
mlt_playlist_clip_info info;
- mlt_playlist_get_clip_info( this, &info, clip );
+ mlt_playlist_get_clip_info( self, &info, clip );
if ( left && position != info.start )
- mlt_playlist_split( this, clip, position - info.start - 1 );
+ mlt_playlist_split( self, clip, position - info.start - 1 );
else if ( !left )
- mlt_playlist_split( this, clip, position - info.start );
+ mlt_playlist_split( self, clip, position - info.start );
result = position;
}
else if ( position <= 0 )
}
else
{
- result = mlt_producer_get_playtime( MLT_PLAYLIST_PRODUCER( this ) );
+ result = mlt_producer_get_playtime( MLT_PLAYLIST_PRODUCER( self ) );
}
}
return result;
/** Join 1 or more consecutive clips.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param clip the starting playlist entry index
* \param count the number of entries to merge
* \param merge ignored
* \return true if there was an error
*/
-int mlt_playlist_join( mlt_playlist this, int clip, int count, int merge )
+int mlt_playlist_join( mlt_playlist self, int clip, int count, int merge )
{
- int error = clip < 0 || clip >= this->count;
+ int error = clip < 0 || clip >= self->count;
if ( error == 0 )
{
int i = clip;
- mlt_playlist new_clip = mlt_playlist_init( );
- mlt_events_block( MLT_PLAYLIST_PROPERTIES( this ), this );
- if ( clip + count >= this->count )
- count = this->count - clip - 1;
+ mlt_playlist new_clip = mlt_playlist_new( mlt_service_profile( MLT_PLAYLIST_SERVICE(self) ) );
+ mlt_events_block( MLT_PLAYLIST_PROPERTIES( self ), self );
+ if ( clip + count >= self->count )
+ count = self->count - clip - 1;
for ( i = 0; i <= count; i ++ )
{
- playlist_entry *entry = this->list[ clip ];
+ playlist_entry *entry = self->list[ clip ];
mlt_playlist_append( new_clip, entry->producer );
mlt_playlist_repeat_clip( new_clip, i, entry->repeat );
entry->preservation_hack = 1;
- mlt_playlist_remove( this, clip );
+ mlt_playlist_remove( self, clip );
}
- mlt_events_unblock( MLT_PLAYLIST_PROPERTIES( this ), this );
- mlt_playlist_insert( this, MLT_PLAYLIST_PRODUCER( new_clip ), clip, 0, -1 );
+ mlt_events_unblock( MLT_PLAYLIST_PROPERTIES( self ), self );
+ mlt_playlist_insert( self, MLT_PLAYLIST_PRODUCER( new_clip ), clip, 0, -1 );
mlt_playlist_close( new_clip );
}
return error;
/** Mix consecutive clips for a specified length and apply transition if specified.
*
+ * This version of the mix function does not utilize any frames beyond the out of
+ * clip A or before the in point of clip B. It takes the frames needed for the length
+ * of the transition by adjusting the duration of both clips - the out point for clip A
+ * and the in point for clip B.
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param clip the index of the playlist entry
* \param length the number of frames over which to create the mix
* \param transition the transition to use for the mix
* \return true if there was an error
*/
-int mlt_playlist_mix( mlt_playlist this, int clip, int length, mlt_transition transition )
+int mlt_playlist_mix( mlt_playlist self, int clip, int length, mlt_transition transition )
{
- int error = ( clip < 0 || clip + 1 >= this->count );
+ int error = ( clip < 0 || clip + 1 >= self->count );
if ( error == 0 )
{
- playlist_entry *clip_a = this->list[ clip ];
- playlist_entry *clip_b = this->list[ clip + 1 ];
+ playlist_entry *clip_a = self->list[ clip ];
+ playlist_entry *clip_b = self->list[ clip + 1 ];
mlt_producer track_a = NULL;
mlt_producer track_b = NULL;
mlt_tractor tractor = mlt_tractor_new( );
- mlt_events_block( MLT_PLAYLIST_PROPERTIES( this ), this );
+
+ mlt_service_set_profile( MLT_TRACTOR_SERVICE( tractor ),
+ mlt_service_profile( MLT_PLAYLIST_SERVICE( self ) ) );
+ mlt_properties_set_lcnumeric( MLT_TRACTOR_PROPERTIES( tractor ),
+ mlt_properties_get_lcnumeric( MLT_PLAYLIST_PROPERTIES( self ) ) );
+ mlt_events_block( MLT_PLAYLIST_PROPERTIES( self ), self );
// Check length is valid for both clips and resize if necessary.
int max_size = clip_a->frame_count > clip_b->frame_count ? clip_a->frame_count : clip_b->frame_count;
mlt_tractor_set_track( tractor, track_b, 1 );
// Insert the mix object into the playlist
- mlt_playlist_insert( this, MLT_TRACTOR_PRODUCER( tractor ), clip + 1, -1, -1 );
+ mlt_playlist_insert( self, MLT_TRACTOR_PRODUCER( tractor ), clip + 1, -1, -1 );
mlt_properties_set_data( MLT_TRACTOR_PROPERTIES( tractor ), "mlt_mix", tractor, 0, NULL, NULL );
// Attach the transition
if ( track_b == clip_b->producer )
{
clip_b->preservation_hack = 1;
- mlt_playlist_remove( this, clip + 2 );
+ mlt_playlist_remove( self, clip + 2 );
}
else if ( clip_b->frame_out - clip_b->frame_in > length )
{
- mlt_playlist_resize_clip( this, clip + 2, clip_b->frame_in + length, clip_b->frame_out );
+ mlt_playlist_resize_clip( self, clip + 2, clip_b->frame_in + length, clip_b->frame_out );
mlt_properties_set_data( MLT_PRODUCER_PROPERTIES( clip_b->producer ), "mix_in", tractor, 0, NULL, NULL );
mlt_properties_set_data( MLT_TRACTOR_PROPERTIES( tractor ), "mix_out", clip_b->producer, 0, NULL, NULL );
}
else
{
mlt_producer_clear( clip_b->producer );
- mlt_playlist_remove( this, clip + 2 );
+ mlt_playlist_remove( self, clip + 2 );
}
// Check if we have anything left on the left hand clip
if ( track_a == clip_a->producer )
{
clip_a->preservation_hack = 1;
- mlt_playlist_remove( this, clip );
+ mlt_playlist_remove( self, clip );
}
else if ( clip_a->frame_out - clip_a->frame_in > length )
{
- mlt_playlist_resize_clip( this, clip, clip_a->frame_in, clip_a->frame_out - length );
+ mlt_playlist_resize_clip( self, clip, clip_a->frame_in, clip_a->frame_out - length );
+ mlt_properties_set_data( MLT_PRODUCER_PROPERTIES( clip_a->producer ), "mix_out", tractor, 0, NULL, NULL );
+ mlt_properties_set_data( MLT_TRACTOR_PROPERTIES( tractor ), "mix_in", clip_a->producer, 0, NULL, NULL );
+ }
+ else
+ {
+ mlt_producer_clear( clip_a->producer );
+ mlt_playlist_remove( self, clip );
+ }
+
+ // Unblock and force a fire off of change events to listeners
+ mlt_events_unblock( MLT_PLAYLIST_PROPERTIES( self ), self );
+ mlt_playlist_virtual_refresh( self );
+ mlt_tractor_close( tractor );
+ }
+ return error;
+}
+
+/** Mix consecutive clips for a specified length.
+ *
+ * This version of the mix function maintains the out point of the clip A by occupying the
+ * beginning of clip B before its current in point. Therefore, it ends up adjusting the in
+ * point and duration of clip B without affecting the duration of clip A.
+ * Also, therefore, there must be enough frames after the out point of clip A.
+ * \public \memberof mlt_playlist_s
+ * \param self a playlist
+ * \param clip the index of the playlist entry
+ * \param length the number of frames over which to create the mix
+ * \return true if there was an error
+ */
+
+int mlt_playlist_mix_in( mlt_playlist self, int clip, int length )
+{
+ int error = ( clip < 0 || clip + 1 >= self->count );
+ if ( error == 0 )
+ {
+ playlist_entry *clip_a = self->list[ clip ];
+ playlist_entry *clip_b = self->list[ clip + 1 ];
+ mlt_producer track_a = NULL;
+ mlt_producer track_b = NULL;
+ mlt_tractor tractor = mlt_tractor_new( );
+
+ mlt_service_set_profile( MLT_TRACTOR_SERVICE( tractor ),
+ mlt_service_profile( MLT_PLAYLIST_SERVICE( self ) ) );
+ mlt_properties_set_lcnumeric( MLT_TRACTOR_PROPERTIES( tractor ),
+ mlt_properties_get_lcnumeric( MLT_PLAYLIST_PROPERTIES( self ) ) );
+ mlt_events_block( MLT_PLAYLIST_PROPERTIES( self ), self );
+
+ // Check length is valid for both clips and resize if necessary.
+ int max_size = ( clip_a->frame_out + 1 ) > clip_b->frame_count ? ( clip_a->frame_out + 1 ) : clip_b->frame_count;
+ length = length > max_size ? max_size : length;
+
+ // Create the a and b tracks/cuts if necessary - note that no cuts are required if the length matches
+ if ( length != clip_a->frame_out + 1 )
+ track_a = mlt_producer_cut( clip_a->producer, clip_a->frame_out + 1, clip_a->frame_out + length );
+ else
+ track_a = clip_a->producer;
+
+ if ( length != clip_b->frame_count )
+ track_b = mlt_producer_cut( clip_b->producer, clip_b->frame_in, clip_b->frame_in + length - 1 );
+ else
+ track_b = clip_b->producer;
+
+ // Set the tracks on the tractor
+ mlt_tractor_set_track( tractor, track_a, 0 );
+ mlt_tractor_set_track( tractor, track_b, 1 );
+
+ // Insert the mix object into the playlist
+ mlt_playlist_insert( self, MLT_TRACTOR_PRODUCER( tractor ), clip + 1, -1, -1 );
+ mlt_properties_set_data( MLT_TRACTOR_PROPERTIES( tractor ), "mlt_mix", tractor, 0, NULL, NULL );
+
+ // Close our references to the tracks if we created new cuts above (the tracks can still be used here)
+ if ( track_a != clip_a->producer )
+ mlt_producer_close( track_a );
+ if ( track_b != clip_b->producer )
+ mlt_producer_close( track_b );
+
+ // Check if we have anything left on the right hand clip
+ if ( track_b == clip_b->producer )
+ {
+ clip_b->preservation_hack = 1;
+ mlt_playlist_remove( self, clip + 2 );
+ }
+ else if ( clip_b->frame_out - clip_b->frame_in >= length )
+ {
+ mlt_playlist_resize_clip( self, clip + 2, clip_b->frame_in + length, clip_b->frame_out );
+ mlt_properties_set_data( MLT_PRODUCER_PROPERTIES( clip_b->producer ), "mix_in", tractor, 0, NULL, NULL );
+ mlt_properties_set_data( MLT_TRACTOR_PROPERTIES( tractor ), "mix_out", clip_b->producer, 0, NULL, NULL );
+ }
+ else
+ {
+ mlt_producer_clear( clip_b->producer );
+ mlt_playlist_remove( self, clip + 2 );
+ }
+
+ // Check if we have anything left on the left hand clip
+ if ( track_a == clip_a->producer )
+ {
+ clip_a->preservation_hack = 1;
+ mlt_playlist_remove( self, clip );
+ }
+ else if ( clip_a->frame_out - clip_a->frame_in > 0 )
+ {
mlt_properties_set_data( MLT_PRODUCER_PROPERTIES( clip_a->producer ), "mix_out", tractor, 0, NULL, NULL );
mlt_properties_set_data( MLT_TRACTOR_PROPERTIES( tractor ), "mix_in", clip_a->producer, 0, NULL, NULL );
}
else
{
mlt_producer_clear( clip_a->producer );
- mlt_playlist_remove( this, clip );
+ mlt_playlist_remove( self, clip );
}
// Unblock and force a fire off of change events to listeners
- mlt_events_unblock( MLT_PLAYLIST_PROPERTIES( this ), this );
- mlt_playlist_virtual_refresh( this );
+ mlt_events_unblock( MLT_PLAYLIST_PROPERTIES( self ), self );
+ mlt_playlist_virtual_refresh( self );
+ mlt_tractor_close( tractor );
+ }
+ return error;
+}
+
+/** Mix consecutive clips for a specified length.
+ *
+ * This version of the mix function maintains the in point of the B clip by occupying the
+ * end of clip A before its current out point. Therefore, it ends up adjusting the out
+ * point and duration of clip A without affecting the duration or starting frame of clip B.
+ * Also, therefore, there must be enough frames before the in point of clip B.
+ * \public \memberof mlt_playlist_s
+ * \param self a playlist
+ * \param clip the index of the playlist entry
+ * \param length the number of frames over which to create the mix
+ * \return true if there was an error
+ */
+
+int mlt_playlist_mix_out( mlt_playlist self, int clip, int length )
+{
+ int error = ( clip < 0 || clip + 1 >= self->count );
+ if ( error == 0 )
+ {
+ playlist_entry *clip_a = self->list[ clip ];
+ playlist_entry *clip_b = self->list[ clip + 1 ];
+ mlt_producer track_a = NULL;
+ mlt_producer track_b = NULL;
+ mlt_tractor tractor = mlt_tractor_new( );
+
+ mlt_service_set_profile( MLT_TRACTOR_SERVICE( tractor ),
+ mlt_service_profile( MLT_PLAYLIST_SERVICE( self ) ) );
+ mlt_properties_set_lcnumeric( MLT_TRACTOR_PROPERTIES( tractor ),
+ mlt_properties_get_lcnumeric( MLT_PLAYLIST_PROPERTIES( self ) ) );
+ mlt_events_block( MLT_PLAYLIST_PROPERTIES( self ), self );
+
+ // Check length is valid for both clips and resize if necessary.
+ int max_size = clip_a->frame_count > clip_b->frame_in ? clip_a->frame_count : clip_b->frame_in;
+ length = length > max_size ? max_size : length;
+
+ // Create the a and b tracks/cuts if necessary - note that no cuts are required if the length matches
+ if ( length != clip_a->frame_count )
+ track_a = mlt_producer_cut( clip_a->producer, clip_a->frame_out - length + 1, clip_a->frame_out );
+ else
+ track_a = clip_a->producer;
+
+ if ( length != clip_b->frame_in )
+ track_b = mlt_producer_cut( clip_b->producer, clip_b->frame_in - length + 1, clip_b->frame_in );
+ else
+ track_b = clip_b->producer;
+
+ // Set the tracks on the tractor
+ mlt_tractor_set_track( tractor, track_a, 0 );
+ mlt_tractor_set_track( tractor, track_b, 1 );
+
+ // Insert the mix object into the playlist
+ mlt_playlist_insert( self, MLT_TRACTOR_PRODUCER( tractor ), clip + 1, -1, -1 );
+ mlt_properties_set_data( MLT_TRACTOR_PROPERTIES( tractor ), "mlt_mix", tractor, 0, NULL, NULL );
+
+ // Close our references to the tracks if we created new cuts above (the tracks can still be used here)
+ if ( track_a != clip_a->producer )
+ mlt_producer_close( track_a );
+ if ( track_b != clip_b->producer )
+ mlt_producer_close( track_b );
+
+ // Check if we have anything left on the right hand clip
+ if ( track_b == clip_b->producer )
+ {
+ clip_b->preservation_hack = 1;
+ mlt_playlist_remove( self, clip + 2 );
+ }
+ else if ( clip_b->frame_out - clip_b->frame_in > 0 )
+ {
+ mlt_properties_set_data( MLT_PRODUCER_PROPERTIES( clip_b->producer ), "mix_in", tractor, 0, NULL, NULL );
+ mlt_properties_set_data( MLT_TRACTOR_PROPERTIES( tractor ), "mix_out", clip_b->producer, 0, NULL, NULL );
+ }
+ else
+ {
+ mlt_producer_clear( clip_b->producer );
+ mlt_playlist_remove( self, clip + 2 );
+ }
+
+ // Check if we have anything left on the left hand clip
+ if ( track_a == clip_a->producer )
+ {
+ clip_a->preservation_hack = 1;
+ mlt_playlist_remove( self, clip );
+ }
+ else if ( clip_a->frame_out - clip_a->frame_in >= length )
+ {
+ mlt_playlist_resize_clip( self, clip, clip_a->frame_in, clip_a->frame_out - length );
+ mlt_properties_set_data( MLT_PRODUCER_PROPERTIES( clip_a->producer ), "mix_out", tractor, 0, NULL, NULL );
+ mlt_properties_set_data( MLT_TRACTOR_PROPERTIES( tractor ), "mix_in", clip_a->producer, 0, NULL, NULL );
+ }
+ else
+ {
+ mlt_producer_clear( clip_a->producer );
+ mlt_playlist_remove( self, clip );
+ }
+
+ // Unblock and force a fire off of change events to listeners
+ mlt_events_unblock( MLT_PLAYLIST_PROPERTIES( self ), self );
+ mlt_playlist_virtual_refresh( self );
mlt_tractor_close( tractor );
}
return error;
/** Add a transition to an existing mix.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param clip the index of the playlist entry
* \param transition a transition
* \return true if there was an error
*/
-int mlt_playlist_mix_add( mlt_playlist this, int clip, mlt_transition transition )
+int mlt_playlist_mix_add( mlt_playlist self, int clip, mlt_transition transition )
{
- mlt_producer producer = mlt_producer_cut_parent( mlt_playlist_get_clip( this, clip ) );
+ mlt_producer producer = mlt_producer_cut_parent( mlt_playlist_get_clip( self, clip ) );
mlt_properties properties = producer != NULL ? MLT_PRODUCER_PROPERTIES( producer ) : NULL;
mlt_tractor tractor = properties != NULL ? mlt_properties_get_data( properties, "mlt_mix", NULL ) : NULL;
int error = transition == NULL || tractor == NULL;
{
mlt_field field = mlt_tractor_field( tractor );
mlt_field_plant_transition( field, transition, 0, 1 );
- mlt_transition_set_in_and_out( transition, 0, this->list[ clip ]->frame_count - 1 );
+ mlt_transition_set_in_and_out( transition, 0, self->list[ clip ]->frame_count - 1 );
}
return error;
}
/** Return the clip at the clip index.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param clip the index of a playlist entry
* \return a producer or NULL if there was an error
*/
-mlt_producer mlt_playlist_get_clip( mlt_playlist this, int clip )
+mlt_producer mlt_playlist_get_clip( mlt_playlist self, int clip )
{
- if ( clip >= 0 && clip < this->count )
- return this->list[ clip ]->producer;
+ if ( clip >= 0 && clip < self->count )
+ return self->list[ clip ]->producer;
return NULL;
}
/** Return the clip at the specified position.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param position a time relative to the beginning of the playlist
* \return a producer or NULL if not found
*/
-mlt_producer mlt_playlist_get_clip_at( mlt_playlist this, mlt_position position )
+mlt_producer mlt_playlist_get_clip_at( mlt_playlist self, mlt_position position )
{
int index = 0, total = 0;
- return mlt_playlist_locate( this, &position, &index, &total );
+ return mlt_playlist_locate( self, &position, &index, &total );
}
/** Return the clip index of the specified position.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param position a time relative to the beginning of the playlist
* \return the index of the playlist entry
*/
-int mlt_playlist_get_clip_index_at( mlt_playlist this, mlt_position position )
+int mlt_playlist_get_clip_index_at( mlt_playlist self, mlt_position position )
{
int index = 0, total = 0;
- mlt_playlist_locate( this, &position, &index, &total );
+ mlt_playlist_locate( self, &position, &index, &total );
return index;
}
/** Determine if the clip is a mix.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param clip the index of the playlist entry
* \return true if the producer is a mix
*/
-int mlt_playlist_clip_is_mix( mlt_playlist this, int clip )
+int mlt_playlist_clip_is_mix( mlt_playlist self, int clip )
{
- mlt_producer producer = mlt_producer_cut_parent( mlt_playlist_get_clip( this, clip ) );
+ mlt_producer producer = mlt_producer_cut_parent( mlt_playlist_get_clip( self, clip ) );
mlt_properties properties = producer != NULL ? MLT_PRODUCER_PROPERTIES( producer ) : NULL;
mlt_tractor tractor = properties != NULL ? mlt_properties_get_data( properties, "mlt_mix", NULL ) : NULL;
return tractor != NULL;
* back correctly on to the playlist.
*
* \private \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param clip the index of the playlist entry
* \return true if there was an error
*/
-static int mlt_playlist_unmix( mlt_playlist this, int clip )
+static int mlt_playlist_unmix( mlt_playlist self, int clip )
{
- int error = ( clip < 0 || clip >= this->count );
+ int error = ( clip < 0 || clip >= self->count );
// Ensure that the clip request is actually a mix
if ( error == 0 )
{
- mlt_producer producer = mlt_producer_cut_parent( this->list[ clip ]->producer );
+ mlt_producer producer = mlt_producer_cut_parent( self->list[ clip ]->producer );
mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
error = mlt_properties_get_data( properties, "mlt_mix", NULL ) == NULL ||
- this->list[ clip ]->preservation_hack;
+ self->list[ clip ]->preservation_hack;
}
if ( error == 0 )
{
- playlist_entry *mix = this->list[ clip ];
+ playlist_entry *mix = self->list[ clip ];
mlt_tractor tractor = ( mlt_tractor )mlt_producer_cut_parent( mix->producer );
mlt_properties properties = MLT_TRACTOR_PROPERTIES( tractor );
mlt_producer clip_a = mlt_properties_get_data( properties, "mix_in", NULL );
mlt_producer clip_b = mlt_properties_get_data( properties, "mix_out", NULL );
int length = mlt_producer_get_playtime( MLT_TRACTOR_PRODUCER( tractor ) );
- mlt_events_block( MLT_PLAYLIST_PROPERTIES( this ), this );
+ mlt_events_block( MLT_PLAYLIST_PROPERTIES( self ), self );
if ( clip_a != NULL )
{
else
{
mlt_producer cut = mlt_tractor_get_track( tractor, 0 );
- mlt_playlist_insert( this, cut, clip, -1, -1 );
+ mlt_playlist_insert( self, cut, clip, -1, -1 );
clip ++;
}
else
{
mlt_producer cut = mlt_tractor_get_track( tractor, 1 );
- mlt_playlist_insert( this, cut, clip + 1, -1, -1 );
+ mlt_playlist_insert( self, cut, clip + 1, -1, -1 );
}
mlt_properties_set_data( properties, "mlt_mix", NULL, 0, NULL, NULL );
- mlt_playlist_remove( this, clip );
- mlt_events_unblock( MLT_PLAYLIST_PROPERTIES( this ), this );
- mlt_playlist_virtual_refresh( this );
+ mlt_playlist_remove( self, clip );
+ mlt_events_unblock( MLT_PLAYLIST_PROPERTIES( self ), self );
+ mlt_playlist_virtual_refresh( self );
}
return error;
}
/** Resize a mix clip.
*
* \private \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param clip the index of the playlist entry
* \param in the new starting point
* \param out the new ending point
* \return true if there was an error
*/
-static int mlt_playlist_resize_mix( mlt_playlist this, int clip, int in, int out )
+static int mlt_playlist_resize_mix( mlt_playlist self, int clip, int in, int out )
{
- int error = ( clip < 0 || clip >= this->count );
+ int error = ( clip < 0 || clip >= self->count );
// Ensure that the clip request is actually a mix
if ( error == 0 )
{
- mlt_producer producer = mlt_producer_cut_parent( this->list[ clip ]->producer );
+ mlt_producer producer = mlt_producer_cut_parent( self->list[ clip ]->producer );
mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
error = mlt_properties_get_data( properties, "mlt_mix", NULL ) == NULL;
}
if ( error == 0 )
{
- playlist_entry *mix = this->list[ clip ];
+ playlist_entry *mix = self->list[ clip ];
mlt_tractor tractor = ( mlt_tractor )mlt_producer_cut_parent( mix->producer );
mlt_properties properties = MLT_TRACTOR_PROPERTIES( tractor );
mlt_producer clip_a = mlt_properties_get_data( properties, "mix_in", NULL );
mlt_producer track_b = mlt_tractor_get_track( tractor, 1 );
int length = out - in + 1;
int length_diff = length - mlt_producer_get_playtime( MLT_TRACTOR_PRODUCER( tractor ) );
- mlt_events_block( MLT_PLAYLIST_PROPERTIES( this ), this );
+ mlt_events_block( MLT_PLAYLIST_PROPERTIES( self ), self );
if ( clip_a != NULL )
mlt_producer_set_in_and_out( clip_a, mlt_producer_get_in( clip_a ), mlt_producer_get_out( clip_a ) - length_diff );
mlt_properties_set_position( MLT_PRODUCER_PROPERTIES( mix->producer ), "length", out - in + 1 );
mlt_producer_set_in_and_out( mix->producer, in, out );
- mlt_events_unblock( MLT_PLAYLIST_PROPERTIES( this ), this );
- mlt_playlist_virtual_refresh( this );
+ mlt_events_unblock( MLT_PLAYLIST_PROPERTIES( self ), self );
+ mlt_playlist_virtual_refresh( self );
}
return error;
}
/** Consolidate adjacent blank producers.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param keep_length set false to remove the last entry if it is blank
*/
-void mlt_playlist_consolidate_blanks( mlt_playlist this, int keep_length )
+void mlt_playlist_consolidate_blanks( mlt_playlist self, int keep_length )
{
- if ( this != NULL )
+ if ( self != NULL )
{
int i = 0;
- mlt_properties properties = MLT_PLAYLIST_PROPERTIES( this );
+ mlt_properties properties = MLT_PLAYLIST_PROPERTIES( self );
mlt_events_block( properties, properties );
- for ( i = 1; i < this->count; i ++ )
+ for ( i = 1; i < self->count; i ++ )
{
- playlist_entry *left = this->list[ i - 1 ];
- playlist_entry *right = this->list[ i ];
+ playlist_entry *left = self->list[ i - 1 ];
+ playlist_entry *right = self->list[ i ];
if ( mlt_producer_is_blank( left->producer ) && mlt_producer_is_blank( right->producer ) )
{
- mlt_playlist_resize_clip( this, i - 1, 0, left->frame_count + right->frame_count - 1 );
- mlt_playlist_remove( this, i -- );
+ mlt_playlist_resize_clip( self, i - 1, 0, left->frame_count + right->frame_count - 1 );
+ mlt_playlist_remove( self, i -- );
}
}
- if ( !keep_length && this->count > 0 )
+ if ( !keep_length && self->count > 0 )
{
- playlist_entry *last = this->list[ this->count - 1 ];
+ playlist_entry *last = self->list[ self->count - 1 ];
if ( mlt_producer_is_blank( last->producer ) )
- mlt_playlist_remove( this, this->count - 1 );
+ mlt_playlist_remove( self, self->count - 1 );
}
mlt_events_unblock( properties, properties );
- mlt_playlist_virtual_refresh( this );
+ mlt_playlist_virtual_refresh( self );
}
}
/** Determine if the specified clip index is a blank.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param clip the index of the playlist entry
- * \return true if there was an error
+ * \return true if \p clip is a "blank" producer
*/
-int mlt_playlist_is_blank( mlt_playlist this, int clip )
+int mlt_playlist_is_blank( mlt_playlist self, int clip )
{
- return this == NULL || mlt_producer_is_blank( mlt_playlist_get_clip( this, clip ) );
+ return self == NULL || mlt_producer_is_blank( mlt_playlist_get_clip( self, clip ) );
}
/** Determine if the specified position is a blank.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param position a time relative to the start or end (negative) of the playlist
* \return true if there was an error
*/
-int mlt_playlist_is_blank_at( mlt_playlist this, mlt_position position )
+int mlt_playlist_is_blank_at( mlt_playlist self, mlt_position position )
{
- return this == NULL || mlt_producer_is_blank( mlt_playlist_get_clip_at( this, position ) );
+ return self == NULL || mlt_producer_is_blank( mlt_playlist_get_clip_at( self, position ) );
}
/** Replace the specified clip with a blank and return the clip.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param clip the index of the playlist entry
* \return a producer or NULL if there was an error
*/
-mlt_producer mlt_playlist_replace_with_blank( mlt_playlist this, int clip )
+mlt_producer mlt_playlist_replace_with_blank( mlt_playlist self, int clip )
{
mlt_producer producer = NULL;
- if ( !mlt_playlist_is_blank( this, clip ) )
+ if ( !mlt_playlist_is_blank( self, clip ) )
{
- playlist_entry *entry = this->list[ clip ];
+ playlist_entry *entry = self->list[ clip ];
int in = entry->frame_in;
int out = entry->frame_out;
- mlt_properties properties = MLT_PLAYLIST_PROPERTIES( this );
+ mlt_properties properties = MLT_PLAYLIST_PROPERTIES( self );
producer = entry->producer;
mlt_properties_inc_ref( MLT_PRODUCER_PROPERTIES( producer ) );
mlt_events_block( properties, properties );
- mlt_playlist_remove( this, clip );
- mlt_playlist_blank( this, out - in );
- mlt_playlist_move( this, this->count - 1, clip );
+ mlt_playlist_remove( self, clip );
+ mlt_playlist_blank( self, out - in );
+ mlt_playlist_move( self, self->count - 1, clip );
mlt_events_unblock( properties, properties );
- mlt_playlist_virtual_refresh( this );
+ mlt_playlist_virtual_refresh( self );
mlt_producer_set_in_and_out( producer, in, out );
}
return producer;
/** Insert blank space.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param clip the index of the new blank section
- * \param length the ending time of the new blank section (duration - 1)
+ * \param out the ending time of the new blank section (duration - 1)
*/
-void mlt_playlist_insert_blank( mlt_playlist this, int clip, int length )
+void mlt_playlist_insert_blank( mlt_playlist self, int clip, int out )
{
- if ( this != NULL && length >= 0 )
+ if ( self != NULL && out >= 0 )
{
- mlt_properties properties = MLT_PLAYLIST_PROPERTIES( this );
+ mlt_properties properties = MLT_PLAYLIST_PROPERTIES( self );
mlt_events_block( properties, properties );
- mlt_playlist_blank( this, length );
- mlt_playlist_move( this, this->count - 1, clip );
+ mlt_playlist_blank( self, out );
+ mlt_playlist_move( self, self->count - 1, clip );
mlt_events_unblock( properties, properties );
- mlt_playlist_virtual_refresh( this );
+ mlt_playlist_virtual_refresh( self );
}
}
/** Resize a blank entry.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param position the time at which the blank entry exists relative to the start or end (negative) of the playlist.
* \param length the additional amount of blank frames to add
* \param find true to fist locate the blank after the clip at position
*/
-void mlt_playlist_pad_blanks( mlt_playlist this, mlt_position position, int length, int find )
+void mlt_playlist_pad_blanks( mlt_playlist self, mlt_position position, int length, int find )
{
- if ( this != NULL && length != 0 )
+ if ( self != NULL && length != 0 )
{
- int clip = mlt_playlist_get_clip_index_at( this, position );
- mlt_properties properties = MLT_PLAYLIST_PROPERTIES( this );
+ int clip = mlt_playlist_get_clip_index_at( self, position );
+ mlt_properties properties = MLT_PLAYLIST_PROPERTIES( self );
mlt_events_block( properties, properties );
- if ( find && clip < this->count && !mlt_playlist_is_blank( this, clip ) )
+ if ( find && clip < self->count && !mlt_playlist_is_blank( self, clip ) )
clip ++;
- if ( clip < this->count && mlt_playlist_is_blank( this, clip ) )
+ if ( clip < self->count && mlt_playlist_is_blank( self, clip ) )
{
mlt_playlist_clip_info info;
- mlt_playlist_get_clip_info( this, &info, clip );
+ mlt_playlist_get_clip_info( self, &info, clip );
if ( info.frame_out + length > info.frame_in )
- mlt_playlist_resize_clip( this, clip, info.frame_in, info.frame_out + length );
+ mlt_playlist_resize_clip( self, clip, info.frame_in, info.frame_out + length );
else
- mlt_playlist_remove( this, clip );
+ mlt_playlist_remove( self, clip );
}
- else if ( find && clip < this->count && length > 0 )
+ else if ( find && clip < self->count && length > 0 )
{
- mlt_playlist_insert_blank( this, clip, length );
+ mlt_playlist_insert_blank( self, clip, length );
}
mlt_events_unblock( properties, properties );
- mlt_playlist_virtual_refresh( this );
+ mlt_playlist_virtual_refresh( self );
}
}
/** Insert a clip at a specific time.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param position the time at which to insert
* \param producer the producer to insert
* \param mode true if you want to overwrite any blank section
* \return true if there was an error
*/
-int mlt_playlist_insert_at( mlt_playlist this, mlt_position position, mlt_producer producer, int mode )
+int mlt_playlist_insert_at( mlt_playlist self, mlt_position position, mlt_producer producer, int mode )
{
- int ret = this == NULL || position < 0 || producer == NULL;
+ int ret = self == NULL || position < 0 || producer == NULL;
if ( ret == 0 )
{
- mlt_properties properties = MLT_PLAYLIST_PROPERTIES( this );
+ mlt_properties properties = MLT_PLAYLIST_PROPERTIES( self );
int length = mlt_producer_get_playtime( producer );
- int clip = mlt_playlist_get_clip_index_at( this, position );
+ int clip = mlt_playlist_get_clip_index_at( self, position );
mlt_playlist_clip_info info;
- mlt_playlist_get_clip_info( this, &info, clip );
- mlt_events_block( properties, this );
- if ( clip < this->count && mlt_playlist_is_blank( this, clip ) )
+ mlt_playlist_get_clip_info( self, &info, clip );
+ mlt_events_block( properties, self );
+ if ( clip < self->count && mlt_playlist_is_blank( self, clip ) )
{
// Split and move to new clip if need be
- if ( position != info.start && mlt_playlist_split( this, clip, position - info.start - 1 ) == 0 )
- mlt_playlist_get_clip_info( this, &info, ++ clip );
+ if ( position != info.start && mlt_playlist_split( self, clip, position - info.start - 1 ) == 0 )
+ mlt_playlist_get_clip_info( self, &info, ++ clip );
// Split again if need be
if ( length < info.frame_count )
- mlt_playlist_split( this, clip, length - 1 );
+ mlt_playlist_split( self, clip, length - 1 );
// Remove
- mlt_playlist_remove( this, clip );
+ mlt_playlist_remove( self, clip );
// Insert
- mlt_playlist_insert( this, producer, clip, -1, -1 );
+ mlt_playlist_insert( self, producer, clip, -1, -1 );
ret = clip;
}
- else if ( clip < this->count )
+ else if ( clip < self->count )
{
if ( position > info.start + info.frame_count / 2 )
clip ++;
- if ( mode == 1 && clip < this->count && mlt_playlist_is_blank( this, clip ) )
+ if ( mode == 1 && clip < self->count && mlt_playlist_is_blank( self, clip ) )
{
- mlt_playlist_get_clip_info( this, &info, clip );
+ mlt_playlist_get_clip_info( self, &info, clip );
if ( length < info.frame_count )
- mlt_playlist_split( this, clip, length );
- mlt_playlist_remove( this, clip );
+ mlt_playlist_split( self, clip, length );
+ mlt_playlist_remove( self, clip );
}
- mlt_playlist_insert( this, producer, clip, -1, -1 );
+ mlt_playlist_insert( self, producer, clip, -1, -1 );
ret = clip;
}
else
{
if ( mode == 1 ) {
if ( position == info.start )
- mlt_playlist_remove( this, clip );
+ mlt_playlist_remove( self, clip );
else
- mlt_playlist_blank( this, position - mlt_properties_get_int( properties, "length" ) - 1 );
+ mlt_playlist_blank( self, position - mlt_properties_get_int( properties, "length" ) - 1 );
}
- mlt_playlist_append( this, producer );
- ret = this->count - 1;
+ mlt_playlist_append( self, producer );
+ ret = self->count - 1;
}
- mlt_events_unblock( properties, this );
- mlt_playlist_virtual_refresh( this );
+ mlt_events_unblock( properties, self );
+ mlt_playlist_virtual_refresh( self );
}
else
{
/** Get the time at which the clip starts relative to the playlist.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param clip the index of the playlist entry
* \return the starting time
*/
-int mlt_playlist_clip_start( mlt_playlist this, int clip )
+int mlt_playlist_clip_start( mlt_playlist self, int clip )
{
mlt_playlist_clip_info info;
- if ( mlt_playlist_get_clip_info( this, &info, clip ) == 0 )
+ if ( mlt_playlist_get_clip_info( self, &info, clip ) == 0 )
return info.start;
- return clip < 0 ? 0 : mlt_producer_get_playtime( MLT_PLAYLIST_PRODUCER( this ) );
+ return clip < 0 ? 0 : mlt_producer_get_playtime( MLT_PLAYLIST_PRODUCER( self ) );
}
/** Get the playable duration of the clip.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param clip the index of the playlist entry
* \return the duration of the playlist entry
*/
-int mlt_playlist_clip_length( mlt_playlist this, int clip )
+int mlt_playlist_clip_length( mlt_playlist self, int clip )
{
mlt_playlist_clip_info info;
- if ( mlt_playlist_get_clip_info( this, &info, clip ) == 0 )
+ if ( mlt_playlist_get_clip_info( self, &info, clip ) == 0 )
return info.frame_count;
return 0;
}
/** Get the duration of a blank space.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param clip the index of the playlist entry
* \param bounded the maximum number of blank entries or 0 for all
* \return the duration of a blank section
*/
-int mlt_playlist_blanks_from( mlt_playlist this, int clip, int bounded )
+int mlt_playlist_blanks_from( mlt_playlist self, int clip, int bounded )
{
int count = 0;
mlt_playlist_clip_info info;
- if ( this != NULL && clip < this->count )
+ if ( self != NULL && clip < self->count )
{
- mlt_playlist_get_clip_info( this, &info, clip );
- if ( mlt_playlist_is_blank( this, clip ) )
+ mlt_playlist_get_clip_info( self, &info, clip );
+ if ( mlt_playlist_is_blank( self, clip ) )
count += info.frame_count;
if ( bounded == 0 )
- bounded = this->count;
- for ( clip ++; clip < this->count && bounded >= 0; clip ++ )
+ bounded = self->count;
+ for ( clip ++; clip < self->count && bounded >= 0; clip ++ )
{
- mlt_playlist_get_clip_info( this, &info, clip );
- if ( mlt_playlist_is_blank( this, clip ) )
+ mlt_playlist_get_clip_info( self, &info, clip );
+ if ( mlt_playlist_is_blank( self, clip ) )
count += info.frame_count;
else
bounded --;
/** Remove a portion of the playlist by time.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
* \param position the starting time
* \param length the duration of time to remove
* \return the new entry index at the position
*/
-int mlt_playlist_remove_region( mlt_playlist this, mlt_position position, int length )
+int mlt_playlist_remove_region( mlt_playlist self, mlt_position position, int length )
{
- int index = mlt_playlist_get_clip_index_at( this, position );
- if ( index >= 0 && index < this->count )
+ int index = mlt_playlist_get_clip_index_at( self, position );
+ if ( index >= 0 && index < self->count )
{
- mlt_properties properties = MLT_PLAYLIST_PROPERTIES( this );
- int clip_start = mlt_playlist_clip_start( this, index );
- int clip_length = mlt_playlist_clip_length( this, index );
- int list_length = mlt_producer_get_playtime( MLT_PLAYLIST_PRODUCER( this ) );
- mlt_events_block( properties, this );
+ mlt_properties properties = MLT_PLAYLIST_PROPERTIES( self );
+ int clip_start = mlt_playlist_clip_start( self, index );
+ int list_length = mlt_producer_get_playtime( MLT_PLAYLIST_PRODUCER( self ) );
+ mlt_events_block( properties, self );
if ( position + length > list_length )
length -= ( position + length - list_length );
if ( clip_start < position )
{
- mlt_playlist_split( this, index ++, position - clip_start );
- clip_length -= position - clip_start;
+ mlt_playlist_split( self, index ++, position - clip_start - 1 );
}
- while( length >= 0 )
+ while( length > 0 )
{
- if ( mlt_playlist_clip_length( this, index ) > length )
- mlt_playlist_split( this, index, length );
- length -= mlt_playlist_clip_length( this, index );
- mlt_playlist_remove( this, index );
+ if ( mlt_playlist_clip_length( self, index ) > length )
+ mlt_playlist_split( self, index, length - 1 );
+ length -= mlt_playlist_clip_length( self, index );
+ mlt_playlist_remove( self, index );
}
- mlt_playlist_consolidate_blanks( this, 0 );
- mlt_events_unblock( properties, this );
- mlt_playlist_virtual_refresh( this );
+ mlt_playlist_consolidate_blanks( self, 0 );
+ mlt_events_unblock( properties, self );
+ mlt_playlist_virtual_refresh( self );
// Just to be sure, we'll get the clip index again...
- index = mlt_playlist_get_clip_index_at( this, position );
+ index = mlt_playlist_get_clip_index_at( self, position );
}
return index;
}
*
* \deprecated not implemented
* \public \memberof mlt_playlist_s
- * \param this
+ * \param self
* \param position
* \param length
* \param new_position
* \return
*/
-int mlt_playlist_move_region( mlt_playlist this, mlt_position position, int length, int new_position )
+int mlt_playlist_move_region( mlt_playlist self, mlt_position position, int length, int new_position )
{
- if ( this != NULL )
+ if ( self != NULL )
{
}
return 0;
}
// Get this mlt_playlist
- mlt_playlist this = producer->child;
+ mlt_playlist self = producer->child;
// Need to ensure the frame is deinterlaced when repeating 1 frame
int progressive = 0;
// Get the real producer
- mlt_service real = mlt_playlist_virtual_seek( this, &progressive );
+ mlt_service real = mlt_playlist_virtual_seek( self, &progressive );
// Check that we have a producer
if ( real == NULL )
// Check if we're at the end of the clip
mlt_properties properties = MLT_FRAME_PROPERTIES( *frame );
if ( mlt_properties_get_int( properties, "end_of_clip" ) )
- mlt_playlist_virtual_set_out( this );
+ mlt_playlist_virtual_set_out( self );
// Set the consumer progressive property
if ( progressive )
/** Close the playlist.
*
* \public \memberof mlt_playlist_s
- * \param this a playlist
+ * \param self a playlist
*/
-void mlt_playlist_close( mlt_playlist this )
+void mlt_playlist_close( mlt_playlist self )
{
- if ( this != NULL && mlt_properties_dec_ref( MLT_PLAYLIST_PROPERTIES( this ) ) <= 0 )
+ if ( self != NULL && mlt_properties_dec_ref( MLT_PLAYLIST_PROPERTIES( self ) ) <= 0 )
{
int i = 0;
- this->parent.close = NULL;
- for ( i = 0; i < this->count; i ++ )
+ self->parent.close = NULL;
+ for ( i = 0; i < self->count; i ++ )
{
- mlt_event_close( this->list[ i ]->event );
- mlt_producer_close( this->list[ i ]->producer );
- free( this->list[ i ] );
+ mlt_event_close( self->list[ i ]->event );
+ mlt_producer_close( self->list[ i ]->producer );
+ free( self->list[ i ] );
}
- mlt_producer_close( &this->blank );
- mlt_producer_close( &this->parent );
- free( this->list );
- free( this );
+ mlt_producer_close( &self->blank );
+ mlt_producer_close( &self->parent );
+ free( self->list );
+ free( self );
}
}
projects / mlt / blobdiff