#include "config.h"
#include "mlt_playlist.h"
+#include "mlt_tractor.h"
+#include "mlt_multitrack.h"
+#include "mlt_field.h"
#include "mlt_frame.h"
+#include "mlt_transition.h"
#include <stdio.h>
#include <stdlib.h>
/** Virtual playlist entry.
*/
-typedef struct
+typedef struct playlist_entry_s
{
mlt_producer producer;
mlt_position frame_in;
mlt_position frame_out;
mlt_position frame_count;
+ int repeat;
+ mlt_position producer_length;
+ mlt_event event;
+ int preservation_hack;
}
playlist_entry;
*/
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 );
/** Constructor.
*/
// 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;
+
// 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" );
// Indicate that this producer is a playlist
mlt_properties_set_data( mlt_playlist_properties( this ), "playlist", this, 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", 0 );
+ mlt_properties_set_position( mlt_playlist_properties( this ), "length", 0 );
+
+ this->size = 10;
+ this->list = malloc( this->size * sizeof( playlist_entry * ) );
}
return this;
mlt_producer mlt_playlist_producer( mlt_playlist this )
{
- return &this->parent;
+ return this != NULL ? &this->parent : NULL;
}
/** Get the service associated to this playlist.
static int mlt_playlist_virtual_refresh( mlt_playlist this )
{
- int i = 0;
+ // Obtain the properties
+ mlt_properties properties = mlt_playlist_properties( this );
// Get the fps of the first producer
- double fps = mlt_properties_get_double( mlt_playlist_properties( this ), "first_fps" );
+ double fps = mlt_properties_get_double( properties, "first_fps" );
+ int i = 0;
mlt_position frame_count = 0;
for ( i = 0; i < this->count; i ++ )
{
// Get the producer
mlt_producer producer = this->list[ i ]->producer;
+ int current_length = mlt_producer_get_out( producer ) - mlt_producer_get_in( producer ) + 1;
// If fps is 0
if ( fps == 0 )
mlt_properties_set_double( mlt_producer_properties( producer ), "fps", fps );
}
+ // Check if the length of the producer has changed
+ if ( this->list[ i ]->producer != &this->blank &&
+ ( this->list[ i ]->frame_in != mlt_producer_get_in( producer ) ||
+ this->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;
+ }
+ 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;
+ }
+
+ // Update the producer_length
+ this->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;
+
// Update the frame_count for this clip
frame_count += this->list[ i ]->frame_count;
}
// Refresh all properties
- mlt_properties_set_double( mlt_playlist_properties( this ), "first_fps", fps );
- mlt_properties_set_double( mlt_playlist_properties( this ), "fps", fps == 0 ? 25 : fps );
- mlt_properties_set_position( mlt_playlist_properties( this ), "length", frame_count );
- mlt_properties_set_position( mlt_playlist_properties( this ), "out", frame_count - 1 );
+ mlt_properties_set_double( properties, "first_fps", fps );
+ mlt_properties_set_double( properties, "fps", fps == 0 ? 25 : fps );
+ mlt_events_block( properties, properties );
+ mlt_properties_set_position( properties, "length", frame_count );
+ mlt_events_unblock( properties, properties );
+ mlt_properties_set_position( properties, "out", frame_count - 1 );
return 0;
}
+/** Listener for producers on the playlist.
+*/
+
+static void mlt_playlist_listener( mlt_producer producer, mlt_playlist this )
+{
+ mlt_playlist_virtual_refresh( this );
+}
+
/** Append to the virtual playlist.
*/
-static int mlt_playlist_virtual_append( mlt_playlist this, mlt_producer producer, mlt_position in, mlt_position out )
+static int mlt_playlist_virtual_append( mlt_playlist this, mlt_producer source, mlt_position in, mlt_position out )
{
+ char *resource = source != NULL ? mlt_properties_get( mlt_producer_properties( source ), "resource" ) : NULL;
+ mlt_producer producer = NULL;
+ mlt_properties properties = NULL;
+ mlt_properties parent = NULL;
+
+ // If we have a cut, then use the in/out points from the cut
+ if ( resource == NULL || !strcmp( resource, "blank" ) )
+ {
+ producer = &this->blank;
+ properties = mlt_producer_properties( producer );
+ mlt_properties_inc_ref( properties );
+ }
+ else if ( mlt_producer_is_cut( source ) )
+ {
+ producer = source;
+ if ( in == -1 )
+ in = mlt_producer_get_in( producer );
+ if ( out == -1 || 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 ) )
+ in = mlt_producer_get_in( producer );
+ if ( out == -1 || out > mlt_producer_get_out( producer ) )
+ out = mlt_producer_get_out( producer );
+ properties = mlt_producer_properties( producer );
+ }
+
+ // Fetch the cuts parent properties
+ parent = mlt_producer_properties( mlt_producer_cut_parent( producer ) );
+
// Check that we have room
if ( this->count >= this->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;
+ for ( i = this->size; i < this->size + 10; i ++ ) this->list[ i ] = NULL;
this->size += 10;
}
+ // Create the entry
this->list[ this->count ] = calloc( sizeof( playlist_entry ), 1 );
- 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;
-
- mlt_properties_set( mlt_producer_properties( producer ), "eof", "continue" );
-
- mlt_producer_set_speed( producer, 0 );
-
- this->count ++;
+ if ( this->list[ this->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 );
+ mlt_properties_set( properties, "eof", "pause" );
+ mlt_producer_set_speed( producer, 0 );
+ this->count ++;
+ }
return mlt_playlist_virtual_refresh( this );
}
/** Seek in the virtual playlist.
*/
-static mlt_producer mlt_playlist_virtual_seek( mlt_playlist this )
+static mlt_service mlt_playlist_virtual_seek( mlt_playlist this )
{
// Default producer to blank
mlt_producer producer = NULL;
// Map playlist position to real producer in virtual playlist
mlt_position position = mlt_producer_frame( &this->parent );
+ mlt_position original = position;
+
// Total number of frames
int64_t total = 0;
total += this->list[ i ]->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[ i ]->frame_count )
{
// Found it, now break
// Seek in real producer to relative position
if ( producer != NULL )
{
- position += this->list[ i ]->frame_in;
- mlt_producer_seek( producer, position );
+ int count = this->list[ i ]->frame_count / this->list[ i ]->repeat;
+ mlt_producer_seek( producer, position % count );
}
else if ( !strcmp( eof, "pause" ) && total > 0 )
{
playlist_entry *entry = this->list[ this->count - 1 ];
mlt_producer this_producer = mlt_playlist_producer( this );
- mlt_producer_seek( this_producer, total - 1 - mlt_producer_get_in( this_producer ) );
+ mlt_producer_seek( this_producer, original - 1 );
producer = entry->producer;
mlt_producer_seek( producer, entry->frame_out );
mlt_producer_set_speed( this_producer, 0 );
+ mlt_producer_set_speed( producer, 0 );
}
else if ( !strcmp( eof, "loop" ) && total > 0 )
{
mlt_producer this_producer = mlt_playlist_producer( this );
mlt_producer_seek( this_producer, 0 );
producer = entry->producer;
- mlt_producer_seek( producer, entry->frame_in );
+ mlt_producer_seek( producer, 0 );
}
else
{
producer = &this->blank;
}
- return producer;
+ return mlt_producer_service( producer );
}
/** Invoked when a producer indicates that it has prematurely reached its end.
}
// Seek in real producer to relative position
- if ( i < this->count )
+ if ( i < this->count && this->list[ i ]->frame_out != position )
{
// Update the frame_count for the changed clip (hmmm)
this->list[ i ]->frame_out = position;
mlt_position mlt_playlist_clip( mlt_playlist this, mlt_whence whence, int index )
{
- int64_t position = 0;
+ mlt_position position = 0;
int absolute_clip = index;
int i = 0;
return position;
}
+/** Get all the info about the clip specified.
+*/
+
int mlt_playlist_get_clip_info( mlt_playlist this, mlt_playlist_clip_info *info, int index )
{
int error = index < 0 || index >= this->count;
memset( info, 0, sizeof( mlt_playlist_clip_info ) );
if ( !error )
{
- mlt_producer producer = this->list[ index ]->producer;
+ mlt_producer producer = mlt_producer_cut_parent( this->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->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->length = mlt_producer_get_length( producer );
info->fps = mlt_producer_get_fps( producer );
}
+
return error;
}
int mlt_playlist_clear( mlt_playlist this )
{
+ int i;
+ for ( i = 0; i < this->count; i ++ )
+ {
+ mlt_event_close( this->list[ i ]->event );
+ mlt_producer_close( this->list[ i ]->producer );
+ }
this->count = 0;
mlt_properties_set_double( mlt_playlist_properties( this ), "first_fps", 0 );
return mlt_playlist_virtual_refresh( this );
int mlt_playlist_insert( mlt_playlist this, mlt_producer producer, int where, mlt_position in, mlt_position out )
{
- return 0;
+ // Append to end
+ mlt_events_block( mlt_playlist_properties( this ), this );
+ mlt_playlist_append_io( this, producer, in, out );
+
+ // Move to the position specified
+ mlt_playlist_move( this, this->count - 1, where );
+ mlt_events_unblock( mlt_playlist_properties( this ), this );
+
+ return mlt_playlist_virtual_refresh( this );
}
+/** Remove an entry in the playlist.
+*/
+
int mlt_playlist_remove( mlt_playlist this, int where )
{
- return 0;
+ int error = where < 0 || where >= this->count;
+ if ( error == 0 && mlt_playlist_unmix( this, 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 ) );
+
+ // We need all the details about the clip we're removing
+ mlt_playlist_clip_info where_info;
+ playlist_entry *entry = this->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;
+
+ // Reorganise the list
+ for ( i = where + 1; i < this->count; i ++ )
+ this->list[ i - 1 ] = this->list[ i ];
+ this->count --;
+
+ if ( entry->preservation_hack == 0 )
+ {
+ // Decouple from mix_in/out if necessary
+ if ( mlt_properties_get_data( properties, "mix_in", NULL ) != NULL )
+ {
+ mlt_properties mix = mlt_properties_get_data( properties, "mix_in", NULL );
+ mlt_properties_set_data( mix, "mix_out", NULL, 0, NULL, NULL );
+ }
+ if ( mlt_properties_get_data( properties, "mix_out", NULL ) != NULL )
+ {
+ mlt_properties mix = mlt_properties_get_data( properties, "mix_out", NULL );
+ mlt_properties_set_data( mix, "mix_in", NULL, 0, NULL, NULL );
+ }
+
+ mlt_producer_clear( entry->producer );
+ }
+
+ // Close the producer associated to the clip info
+ mlt_event_close( entry->event );
+ mlt_producer_close( entry->producer );
+
+ // 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 );
+
+ // Free the entry
+ free( entry );
+
+ // Refresh the playlist
+ mlt_playlist_virtual_refresh( this );
+ }
+
+ return error;
}
-int mlt_playlist_move( mlt_playlist this, int from, int to )
+/** Move an entry in the playlist.
+*/
+
+int mlt_playlist_move( mlt_playlist this, 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 ( dest < 0 )
+ dest = 0;
+ if ( dest >= this->count )
+ dest = this->count - 1;
+
+ if ( src != dest && this->count > 1 )
+ {
+ int current = mlt_playlist_current_clip( this );
+ mlt_position position = mlt_producer_position( mlt_playlist_producer( this ) );
+ 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 );
+ position -= current_info.start;
+
+ if ( current == src )
+ current = dest;
+ else if ( current > src && current < dest )
+ current ++;
+ else if ( current == dest )
+ current = src;
+
+ src_entry = this->list[ src ];
+ if ( src > dest )
+ {
+ for ( i = src; i > dest; i -- )
+ this->list[ i ] = this->list[ i - 1 ];
+ }
+ else
+ {
+ for ( i = src; i < dest; i ++ )
+ this->list[ i ] = this->list[ i + 1 ];
+ }
+ this->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 );
+ }
+
return 0;
}
-/** Resize the current clip.
+/** Repeat the specified clip n times.
+*/
+
+int mlt_playlist_repeat_clip( mlt_playlist this, int clip, int repeat )
+{
+ int error = repeat < 1 || clip < 0 || clip >= this->count;
+ if ( error == 0 )
+ {
+ playlist_entry *entry = this->list[ clip ];
+ entry->repeat = repeat;
+ mlt_playlist_virtual_refresh( this );
+ }
+ return error;
+}
+
+/** Resize the specified clip.
*/
int mlt_playlist_resize_clip( mlt_playlist this, int clip, mlt_position in, mlt_position out )
{
int error = clip < 0 || clip >= this->count;
- if ( error == 0 )
+ if ( error == 0 && mlt_playlist_resize_mix( this, clip, in, out ) != 0 )
{
playlist_entry *entry = this->list[ clip ];
mlt_producer producer = entry->producer;
if ( in <= -1 )
in = 0;
- if ( out <= -1 || out >= mlt_producer_get_playtime( producer ) )
- out = mlt_producer_get_playtime( producer ) - 1;
+ if ( out <= -1 || out >= mlt_producer_get_length( producer ) )
+ out = mlt_producer_get_length( producer ) - 1;
if ( out < in )
{
out = t;
}
- entry->frame_in = in;
- entry->frame_out = out;
- entry->frame_count = out - in + 1;
+ mlt_producer_set_in_and_out( producer, in, out );
+ }
+ return error;
+}
+
+/** Split a clip on the playlist at the given position.
+*/
+
+int mlt_playlist_split( mlt_playlist this, int clip, mlt_position position )
+{
+ int error = clip < 0 || clip >= this->count;
+ if ( error == 0 )
+ {
+ playlist_entry *entry = this->list[ clip ];
+ position = position < 0 ? entry->frame_count + position - 1 : position;
+ if ( position >= 0 && position <= entry->frame_count )
+ {
+ mlt_producer split = NULL;
+ 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 );
+ split = mlt_producer_cut( entry->producer, in + position + 1, out );
+ mlt_playlist_insert( this, split, clip + 1, 0, -1 );
+ mlt_producer_close( split );
+ mlt_events_unblock( mlt_playlist_properties( this ), this );
+ mlt_events_fire( mlt_playlist_properties( this ), "producer-changed", NULL );
+ }
+ else
+ {
+ error = 1;
+ }
+ }
+ return error;
+}
+
+/** Join 1 or more consecutive clips.
+*/
+
+int mlt_playlist_join( mlt_playlist this, int clip, int count, int merge )
+{
+ int error = clip < 0 || ( clip ) >= this->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;
+ for ( i = 0; i <= count; i ++ )
+ {
+ playlist_entry *entry = this->list[ clip ];
+ mlt_playlist_append( new_clip, entry->producer );
+ mlt_playlist_repeat_clip( new_clip, i, entry->repeat );
+ if ( entry->frame_count == entry->repeat )
+ mlt_properties_set_int( mlt_playlist_properties( new_clip ), "hide", 2 );
+ entry->preservation_hack = 1;
+ mlt_playlist_remove( this, clip );
+ }
+ mlt_events_unblock( mlt_playlist_properties( this ), this );
+ mlt_playlist_insert( this, 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.
+*/
+
+int mlt_playlist_mix( mlt_playlist this, int clip, int length, mlt_transition transition )
+{
+ int error = ( clip < 0 || clip + 1 >= this->count );
+ if ( error == 0 )
+ {
+ playlist_entry *clip_a = this->list[ clip ];
+ playlist_entry *clip_b = this->list[ clip + 1 ];
+ mlt_producer track_a;
+ mlt_producer track_b;
+ mlt_tractor tractor = mlt_tractor_new( );
+ mlt_events_block( mlt_playlist_properties( this ), this );
+
+ // TODO: Check length is valid for both clips and resize if necessary.
+
+ // Create the a and b tracks/cuts
+ track_a = mlt_producer_cut( clip_a->producer, clip_a->frame_out - length + 1, clip_a->frame_out );
+ track_b = mlt_producer_cut( clip_b->producer, clip_b->frame_in, clip_b->frame_in + length - 1 );
+
+ // 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( this, 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 ( transition != NULL )
+ {
+ mlt_field field = mlt_tractor_field( tractor );
+ mlt_field_plant_transition( field, transition, 0, 1 );
+ mlt_transition_set_in_and_out( transition, 0, length - 1 );
+ }
+
+ // Check if we have anything left on the right hand clip
+ 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_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 );
+ }
+
+ // Check if we have anything left on the left hand clip
+ 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_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_events_unblock( mlt_playlist_properties( this ), this );
+ mlt_events_fire( mlt_playlist_properties( this ), "producer-changed", NULL );
+ mlt_producer_close( track_a );
+ mlt_producer_close( track_b );
+ mlt_tractor_close( tractor );
+ }
+ return error;
+}
+
+/** Add a transition to an existing mix.
+*/
+
+int mlt_playlist_mix_add( mlt_playlist this, int clip, mlt_transition transition )
+{
+ mlt_producer producer = mlt_producer_cut_parent( mlt_playlist_get_clip( this, 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;
+ if ( error == 0 )
+ {
+ 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 );
+ }
+ return error;
+}
+
+/** Return the clip at the position.
+*/
+
+mlt_producer mlt_playlist_get_clip( mlt_playlist this, int clip )
+{
+ if ( clip >= 0 && clip < this->count )
+ return this->list[ clip ]->producer;
+ return NULL;
+}
+
+/** Determine if the clip is a mix.
+*/
+
+int mlt_playlist_clip_is_mix( mlt_playlist this, int clip )
+{
+ mlt_producer producer = mlt_producer_cut_parent( mlt_playlist_get_clip( this, 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;
+}
+
+/** Remove a mixed clip - ensure that the cuts included in the mix find their way
+ back correctly on to the playlist.
+*/
+
+static int mlt_playlist_unmix( mlt_playlist this, int clip )
+{
+ int error = ( clip < 0 || clip >= this->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_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 ];
+ 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 );
+
+ 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 );
+ }
+ else
+ {
+ mlt_producer cut = mlt_tractor_get_track( tractor, 0 );
+ mlt_playlist_insert( this, cut, clip, -1, -1 );
+ clip ++;
+ }
+
+ if ( clip_b != NULL )
+ {
+ mlt_producer_set_in_and_out( clip_b, mlt_producer_get_in( clip_b ) - length, mlt_producer_get_out( clip_b ) );
+ }
+ else
+ {
+ mlt_producer cut = mlt_tractor_get_track( tractor, 1 );
+ mlt_playlist_insert( this, 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_events_fire( mlt_playlist_properties( this ), "producer-changed", NULL );
+ }
+ return error;
+}
+
+static int mlt_playlist_resize_mix( mlt_playlist this, int clip, int in, int out )
+{
+ int error = ( clip < 0 || clip >= this->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_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 ];
+ 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 );
+ mlt_producer track_a = mlt_tractor_get_track( tractor, 0 );
+ 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 );
+
+ 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 );
+
+ if ( clip_b != NULL )
+ mlt_producer_set_in_and_out( clip_b, mlt_producer_get_in( clip_b ) + length_diff, mlt_producer_get_out( clip_b ) );
+
+ mlt_producer_set_in_and_out( track_a, mlt_producer_get_in( track_a ) - length_diff, mlt_producer_get_out( track_a ) );
+ mlt_producer_set_in_and_out( track_b, mlt_producer_get_in( track_b ), mlt_producer_get_out( track_b ) + length_diff );
+ mlt_producer_set_in_and_out( mlt_multitrack_producer( mlt_tractor_multitrack( tractor ) ), in, out );
+ mlt_producer_set_in_and_out( mlt_tractor_producer( tractor ), in, out );
+ 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 );
}
return error;
mlt_playlist this = producer->child;
// Get the real producer
- mlt_producer real = mlt_playlist_virtual_seek( this );
+ mlt_service real = mlt_playlist_virtual_seek( this );
// Get the frame
- mlt_service_get_frame( mlt_producer_service( real ), frame, index );
+ mlt_service_get_frame( real, frame, index );
// Check if we're at the end of the clip
mlt_properties properties = mlt_frame_properties( *frame );
void mlt_playlist_close( mlt_playlist this )
{
- mlt_producer_close( &this->parent );
- mlt_producer_close( &this->blank );
- free( this );
+ if ( this != NULL && mlt_properties_dec_ref( mlt_playlist_properties( this ) ) <= 0 )
+ {
+ int i = 0;
+ this->parent.close = NULL;
+ for ( i = 0; i < this->count; i ++ )
+ {
+ mlt_event_close( this->list[ i ]->event );
+ mlt_producer_close( this->list[ i ]->producer );
+ free( this->list[ i ] );
+ }
+ mlt_producer_close( &this->blank );
+ mlt_producer_close( &this->parent );
+ free( this->list );
+ free( this );
+ }
}
projects / melted / blobdiff