--- /dev/null
+/*
+ * miracle_unit.c -- Transmission Unit Implementation
+ * Copyright (C) 2002-2003 Ushodaya Enterprises Limited
+ * Author: Dan Dennedy <dan@dennedy.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/poll.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <signal.h>
+#include <limits.h>
+
+#include <sys/mman.h>
+
+#include "miracle_unit.h"
+#include "miracle_log.h"
+#include "miracle_local.h"
+
+#include <framework/mlt.h>
+
+/* Forward references */
+static void miracle_unit_status_communicate( miracle_unit );
+
+/** Allocate a new DV transmission unit.
+
+ \return A new miracle_unit handle.
+*/
+
+miracle_unit miracle_unit_init( int index, char *constructor )
+{
+ miracle_unit this = NULL;
+ mlt_consumer consumer = NULL;
+
+ char *id = strdup( constructor );
+ char *arg = strchr( id, ':' );
+
+ if ( arg != NULL )
+ *arg ++ = '\0';
+
+ consumer = mlt_factory_consumer( NULL, id, arg );
+
+ if ( consumer != NULL )
+ {
+ mlt_playlist playlist = mlt_playlist_init( );
+ this = calloc( sizeof( miracle_unit_t ), 1 );
+ this->properties = mlt_properties_new( );
+ mlt_properties_init( this->properties, this );
+ mlt_properties_set_int( this->properties, "unit", index );
+ mlt_properties_set_int( this->properties, "generation", 0 );
+ mlt_properties_set( this->properties, "constructor", constructor );
+ mlt_properties_set( this->properties, "id", id );
+ mlt_properties_set( this->properties, "arg", arg );
+ mlt_properties_set_data( this->properties, "consumer", consumer, 0, ( mlt_destructor )mlt_consumer_close, NULL );
+ mlt_properties_set_data( this->properties, "playlist", playlist, 0, ( mlt_destructor )mlt_playlist_close, NULL );
+ mlt_consumer_connect( consumer, MLT_PLAYLIST_SERVICE( playlist ) );
+ }
+
+ return this;
+}
+
+static char *strip_root( miracle_unit unit, char *file )
+{
+ mlt_properties properties = unit->properties;
+ char *root = mlt_properties_get( properties, "root" );
+ if ( file != NULL && root != NULL )
+ {
+ int length = strlen( root );
+ if ( root[ length - 1 ] == '/' )
+ length --;
+ if ( !strncmp( file, root, length ) )
+ file += length;
+ }
+ return file;
+}
+
+/** Communicate the current status to all threads waiting on the notifier.
+*/
+
+static void miracle_unit_status_communicate( miracle_unit unit )
+{
+ if ( unit != NULL )
+ {
+ mlt_properties properties = unit->properties;
+ char *root_dir = mlt_properties_get( properties, "root" );
+ valerie_notifier notifier = mlt_properties_get_data( properties, "notifier", NULL );
+ valerie_status_t status;
+
+ if ( root_dir != NULL && notifier != NULL )
+ {
+ if ( miracle_unit_get_status( unit, &status ) == 0 )
+ /* if ( !( ( status.status == unit_playing || status.status == unit_paused ) &&
+ strcmp( status.clip, "" ) &&
+ !strcmp( status.tail_clip, "" ) &&
+ status.position == 0 &&
+ status.in == 0 &&
+ status.out == 0 ) ) */
+ valerie_notifier_put( notifier, &status );
+ }
+ }
+}
+
+/** Set the notifier info
+*/
+
+void miracle_unit_set_notifier( miracle_unit this, valerie_notifier notifier, char *root_dir )
+{
+ mlt_properties properties = this->properties;
+ mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
+ mlt_properties playlist_properties = MLT_PLAYLIST_PROPERTIES( playlist );
+
+ mlt_properties_set( properties, "root", root_dir );
+ mlt_properties_set_data( properties, "notifier", notifier, 0, NULL, NULL );
+ mlt_properties_set_data( playlist_properties, "notifier_arg", this, 0, NULL, NULL );
+ mlt_properties_set_data( playlist_properties, "notifier", miracle_unit_status_communicate, 0, NULL, NULL );
+
+ miracle_unit_status_communicate( this );
+}
+
+/** Create or locate a producer for the file specified.
+*/
+
+static mlt_producer locate_producer( miracle_unit unit, char *file )
+{
+ // Try to get the profile from the consumer
+ mlt_consumer consumer = mlt_properties_get_data( unit->properties, "consumer", NULL );
+ mlt_profile profile = NULL;
+
+ if ( consumer != NULL )
+ {
+ profile = mlt_service_profile( MLT_CONSUMER_SERVICE( consumer ) );
+ }
+ return mlt_factory_producer( profile, "fezzik", file );
+}
+
+/** Update the generation count.
+*/
+
+static void update_generation( miracle_unit unit )
+{
+ mlt_properties properties = unit->properties;
+ int generation = mlt_properties_get_int( properties, "generation" );
+ mlt_properties_set_int( properties, "generation", ++ generation );
+}
+
+/** Wipe all clips on the playlist for this unit.
+*/
+
+static void clear_unit( miracle_unit unit )
+{
+ mlt_properties properties = unit->properties;
+ mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
+ mlt_producer producer = MLT_PLAYLIST_PRODUCER( playlist );
+
+ mlt_service_lock( MLT_PLAYLIST_SERVICE( playlist ) );
+ mlt_playlist_clear( playlist );
+ mlt_producer_seek( producer, 0 );
+ mlt_service_unlock( MLT_PLAYLIST_SERVICE( playlist ) );
+
+ update_generation( unit );
+}
+
+/** Wipe all but the playing clip from the unit.
+*/
+
+static void clean_unit( miracle_unit unit )
+{
+ mlt_properties properties = unit->properties;
+ mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
+ mlt_playlist_clip_info info;
+ int current = mlt_playlist_current_clip( playlist );
+ mlt_producer producer = MLT_PLAYLIST_PRODUCER( playlist );
+ mlt_position position = mlt_producer_frame( producer );
+ double speed = mlt_producer_get_speed( producer );
+ mlt_playlist_get_clip_info( playlist, &info, current );
+
+ if ( info.producer != NULL )
+ {
+ mlt_properties_inc_ref( MLT_PRODUCER_PROPERTIES( info.producer ) );
+ position -= info.start;
+ clear_unit( unit );
+ mlt_service_lock( MLT_PLAYLIST_SERVICE( playlist ) );
+ mlt_playlist_append_io( playlist, info.producer, info.frame_in, info.frame_out );
+ mlt_producer_seek( producer, position );
+ mlt_producer_set_speed( producer, speed );
+ mlt_service_unlock( MLT_PLAYLIST_SERVICE( playlist ) );
+ mlt_producer_close( info.producer );
+ }
+
+ update_generation( unit );
+}
+
+/** Remove everything up to the current clip from the unit.
+*/
+
+static void wipe_unit( miracle_unit unit )
+{
+ mlt_properties properties = unit->properties;
+ mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
+ mlt_playlist_clip_info info;
+ int current = mlt_playlist_current_clip( playlist );
+ mlt_playlist_get_clip_info( playlist, &info, current );
+
+ if ( info.producer != NULL && info.start > 0 )
+ {
+ mlt_service_lock( MLT_PLAYLIST_SERVICE( playlist ) );
+ mlt_playlist_remove_region( playlist, 0, info.start - 1 );
+ mlt_service_unlock( MLT_PLAYLIST_SERVICE( playlist ) );
+ }
+
+ update_generation( unit );
+}
+
+/** Generate a report on all loaded clips.
+*/
+
+void miracle_unit_report_list( miracle_unit unit, valerie_response response )
+{
+ int i;
+ mlt_properties properties = unit->properties;
+ int generation = mlt_properties_get_int( properties, "generation" );
+ mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
+
+ valerie_response_printf( response, 1024, "%d\n", generation );
+
+ for ( i = 0; i < mlt_playlist_count( playlist ); i ++ )
+ {
+ mlt_playlist_clip_info info;
+ char *title;
+ mlt_playlist_get_clip_info( playlist , &info, i );
+ title = mlt_properties_get( MLT_PRODUCER_PROPERTIES( info.producer ), "title" );
+ if ( title == NULL )
+ title = strip_root( unit, info.resource );
+ valerie_response_printf( response, 10240, "%d \"%s\" %d %d %d %d %.2f\n",
+ i,
+ title,
+ info.frame_in,
+ info.frame_out,
+ info.frame_count,
+ info.length,
+ info.fps );
+ }
+ valerie_response_printf( response, 1024, "\n" );
+}
+
+/** Load a clip into the unit clearing existing play list.
+
+ \todo error handling
+ \param unit A miracle_unit handle.
+ \param clip The absolute file name of the clip to load.
+ \param in The starting frame (-1 for 0)
+ \param out The ending frame (-1 for maximum)
+*/
+
+valerie_error_code miracle_unit_load( miracle_unit unit, char *clip, int32_t in, int32_t out, int flush )
+{
+ // Now try to create a producer
+ mlt_producer instance = locate_producer( unit, clip );
+
+ if ( instance != NULL )
+ {
+ mlt_properties properties = unit->properties;
+ mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
+ int original = mlt_producer_get_playtime( MLT_PLAYLIST_PRODUCER( playlist ) );
+ mlt_service_lock( MLT_PLAYLIST_SERVICE( playlist ) );
+ mlt_playlist_append_io( playlist, instance, in, out );
+ mlt_playlist_remove_region( playlist, 0, original );
+ mlt_service_unlock( MLT_PLAYLIST_SERVICE( playlist ) );
+ miracle_log( LOG_DEBUG, "loaded clip %s", clip );
+ update_generation( unit );
+ miracle_unit_status_communicate( unit );
+ mlt_producer_close( instance );
+ return valerie_ok;
+ }
+
+ return valerie_invalid_file;
+}
+
+valerie_error_code miracle_unit_insert( miracle_unit unit, char *clip, int index, int32_t in, int32_t out )
+{
+ mlt_producer instance = locate_producer( unit, clip );
+
+ if ( instance != NULL )
+ {
+ mlt_properties properties = unit->properties;
+ mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
+ fprintf( stderr, "inserting clip %s before %d\n", clip, index );
+ mlt_service_lock( MLT_PLAYLIST_SERVICE( playlist ) );
+ mlt_playlist_insert( playlist, instance, index, in, out );
+ mlt_service_unlock( MLT_PLAYLIST_SERVICE( playlist ) );
+ miracle_log( LOG_DEBUG, "inserted clip %s at %d", clip, index );
+ update_generation( unit );
+ miracle_unit_status_communicate( unit );
+ mlt_producer_close( instance );
+ return valerie_ok;
+ }
+
+ return valerie_invalid_file;
+}
+
+valerie_error_code miracle_unit_remove( miracle_unit unit, int index )
+{
+ mlt_properties properties = unit->properties;
+ mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
+ mlt_service_lock( MLT_PLAYLIST_SERVICE( playlist ) );
+ mlt_playlist_remove( playlist, index );
+ mlt_service_unlock( MLT_PLAYLIST_SERVICE( playlist ) );
+ miracle_log( LOG_DEBUG, "removed clip at %d", index );
+ update_generation( unit );
+ miracle_unit_status_communicate( unit );
+ return valerie_ok;
+}
+
+valerie_error_code miracle_unit_clean( miracle_unit unit )
+{
+ clean_unit( unit );
+ miracle_log( LOG_DEBUG, "Cleaned playlist" );
+ miracle_unit_status_communicate( unit );
+ return valerie_ok;
+}
+
+valerie_error_code miracle_unit_wipe( miracle_unit unit )
+{
+ wipe_unit( unit );
+ miracle_log( LOG_DEBUG, "Wiped playlist" );
+ miracle_unit_status_communicate( unit );
+ return valerie_ok;
+}
+
+valerie_error_code miracle_unit_clear( miracle_unit unit )
+{
+ mlt_consumer consumer = mlt_properties_get_data( unit->properties, "consumer", NULL );
+ clear_unit( unit );
+ mlt_consumer_purge( consumer );
+ miracle_log( LOG_DEBUG, "Cleared playlist" );
+ miracle_unit_status_communicate( unit );
+ return valerie_ok;
+}
+
+valerie_error_code miracle_unit_move( miracle_unit unit, int src, int dest )
+{
+ mlt_properties properties = unit->properties;
+ mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
+ mlt_service_lock( MLT_PLAYLIST_SERVICE( playlist ) );
+ mlt_playlist_move( playlist, src, dest );
+ mlt_service_unlock( MLT_PLAYLIST_SERVICE( playlist ) );
+ miracle_log( LOG_DEBUG, "moved clip %d to %d", src, dest );
+ update_generation( unit );
+ miracle_unit_status_communicate( unit );
+ return valerie_ok;
+}
+
+/** Add a clip to the unit play list.
+
+ \todo error handling
+ \param unit A miracle_unit handle.
+ \param clip The absolute file name of the clip to load.
+ \param in The starting frame (-1 for 0)
+ \param out The ending frame (-1 for maximum)
+*/
+
+valerie_error_code miracle_unit_append( miracle_unit unit, char *clip, int32_t in, int32_t out )
+{
+ mlt_producer instance = locate_producer( unit, clip );
+
+ if ( instance != NULL )
+ {
+ mlt_properties properties = unit->properties;
+ mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
+ mlt_service_lock( MLT_PLAYLIST_SERVICE( playlist ) );
+ mlt_playlist_append_io( playlist, instance, in, out );
+ miracle_log( LOG_DEBUG, "appended clip %s", clip );
+ mlt_service_unlock( MLT_PLAYLIST_SERVICE( playlist ) );
+ update_generation( unit );
+ miracle_unit_status_communicate( unit );
+ mlt_producer_close( instance );
+ return valerie_ok;
+ }
+
+ return valerie_invalid_file;
+}
+
+/** Add an mlt_service to the playlist
+
+ \param unit A miracle_unit handle.
+ \param service the service to add
+*/
+
+valerie_error_code miracle_unit_append_service( miracle_unit unit, mlt_service service )
+{
+ mlt_properties properties = unit->properties;
+ mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
+ mlt_service_lock( MLT_PLAYLIST_SERVICE( playlist ) );
+ mlt_playlist_append( playlist, ( mlt_producer )service );
+ mlt_service_unlock( MLT_PLAYLIST_SERVICE( playlist ) );
+ miracle_log( LOG_DEBUG, "appended clip" );
+ update_generation( unit );
+ miracle_unit_status_communicate( unit );
+ return valerie_ok;
+}
+
+/** Start playing the unit.
+
+ \todo error handling
+ \param unit A miracle_unit handle.
+ \param speed An integer that specifies the playback rate as a
+ percentage multiplied by 100.
+*/
+
+void miracle_unit_play( miracle_unit_t *unit, int speed )
+{
+ mlt_properties properties = unit->properties;
+ mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
+ mlt_producer producer = MLT_PLAYLIST_PRODUCER( playlist );
+ mlt_consumer consumer = mlt_properties_get_data( unit->properties, "consumer", NULL );
+ mlt_producer_set_speed( producer, ( double )speed / 1000 );
+ mlt_consumer_start( consumer );
+ miracle_unit_status_communicate( unit );
+}
+
+/** Stop playback.
+
+ Terminates the dv_pump and halts dv1394 transmission.
+
+ \param unit A miracle_unit handle.
+*/
+
+void miracle_unit_terminate( miracle_unit unit )
+{
+ mlt_consumer consumer = mlt_properties_get_data( unit->properties, "consumer", NULL );
+ mlt_playlist playlist = mlt_properties_get_data( unit->properties, "playlist", NULL );
+ mlt_producer producer = MLT_PLAYLIST_PRODUCER( playlist );
+ mlt_producer_set_speed( producer, 0 );
+ mlt_consumer_stop( consumer );
+ miracle_unit_status_communicate( unit );
+}
+
+/** Query the status of unit playback.
+
+ \param unit A miracle_unit handle.
+ \return 1 if the unit is not playing, 0 if playing.
+*/
+
+int miracle_unit_has_terminated( miracle_unit unit )
+{
+ mlt_consumer consumer = mlt_properties_get_data( unit->properties, "consumer", NULL );
+ return mlt_consumer_is_stopped( consumer );
+}
+
+/** Transfer the currently loaded clip to another unit
+*/
+
+int miracle_unit_transfer( miracle_unit dest_unit, miracle_unit src_unit )
+{
+ int i;
+ mlt_properties dest_properties = dest_unit->properties;
+ mlt_playlist dest_playlist = mlt_properties_get_data( dest_properties, "playlist", NULL );
+ mlt_properties src_properties = src_unit->properties;
+ mlt_playlist src_playlist = mlt_properties_get_data( src_properties, "playlist", NULL );
+ mlt_playlist tmp_playlist = mlt_playlist_init( );
+
+ for ( i = 0; i < mlt_playlist_count( src_playlist ); i ++ )
+ {
+ mlt_playlist_clip_info info;
+ mlt_playlist_get_clip_info( src_playlist, &info, i );
+ if ( info.producer != NULL )
+ mlt_playlist_append_io( tmp_playlist, info.producer, info.frame_in, info.frame_out );
+ }
+
+ clear_unit( src_unit );
+
+ mlt_service_lock( MLT_PLAYLIST_SERVICE( dest_playlist ) );
+
+ for ( i = 0; i < mlt_playlist_count( tmp_playlist ); i ++ )
+ {
+ mlt_playlist_clip_info info;
+ mlt_playlist_get_clip_info( tmp_playlist, &info, i );
+ if ( info.producer != NULL )
+ mlt_playlist_append_io( dest_playlist, info.producer, info.frame_in, info.frame_out );
+ }
+
+ mlt_service_unlock( MLT_PLAYLIST_SERVICE( dest_playlist ) );
+
+ update_generation( dest_unit );
+ miracle_unit_status_communicate( dest_unit );
+
+ mlt_playlist_close( tmp_playlist );
+
+ return 0;
+}
+
+/** Determine if unit is offline.
+*/
+
+int miracle_unit_is_offline( miracle_unit unit )
+{
+ return 0;
+}
+
+/** Obtain the status for a given unit
+*/
+
+int miracle_unit_get_status( miracle_unit unit, valerie_status status )
+{
+ int error = unit == NULL;
+
+ memset( status, 0, sizeof( valerie_status_t ) );
+
+ if ( !error )
+ {
+ mlt_properties properties = unit->properties;
+ mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
+ mlt_producer producer = MLT_PLAYLIST_PRODUCER( playlist );
+ mlt_producer clip = mlt_playlist_current( playlist );
+
+ mlt_playlist_clip_info info;
+ int clip_index = mlt_playlist_current_clip( playlist );
+ mlt_playlist_get_clip_info( playlist, &info, clip_index );
+
+ if ( info.resource != NULL && strcmp( info.resource, "" ) )
+ {
+ char *title = mlt_properties_get( MLT_PRODUCER_PROPERTIES( info.producer ), "title" );
+ if ( title == NULL )
+ title = strip_root( unit, info.resource );
+ strncpy( status->clip, title, sizeof( status->clip ) );
+ status->speed = (int)( mlt_producer_get_speed( producer ) * 1000.0 );
+ status->fps = mlt_producer_get_fps( producer );
+ status->in = info.frame_in;
+ status->out = info.frame_out;
+ status->position = mlt_producer_frame( clip );
+ status->length = mlt_producer_get_length( clip );
+ strncpy( status->tail_clip, title, sizeof( status->tail_clip ) );
+ status->tail_in = info.frame_in;
+ status->tail_out = info.frame_out;
+ status->tail_position = mlt_producer_frame( clip );
+ status->tail_length = mlt_producer_get_length( clip );
+ status->clip_index = mlt_playlist_current_clip( playlist );
+ status->seek_flag = 1;
+ }
+
+ status->generation = mlt_properties_get_int( properties, "generation" );
+
+ if ( miracle_unit_has_terminated( unit ) )
+ status->status = unit_stopped;
+ else if ( !strcmp( status->clip, "" ) )
+ status->status = unit_not_loaded;
+ else if ( status->speed == 0 )
+ status->status = unit_paused;
+ else
+ status->status = unit_playing;
+ }
+ else
+ {
+ status->status = unit_undefined;
+ }
+
+ status->unit = mlt_properties_get_int( unit->properties, "unit" );
+
+ return error;
+}
+
+/** Change position in the playlist.
+*/
+
+void miracle_unit_change_position( miracle_unit unit, int clip, int32_t position )
+{
+ mlt_properties properties = unit->properties;
+ mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
+ mlt_producer producer = MLT_PLAYLIST_PRODUCER( playlist );
+ mlt_playlist_clip_info info;
+
+ if ( clip < 0 )
+ {
+ clip = 0;
+ position = 0;
+ }
+ else if ( clip >= mlt_playlist_count( playlist ) )
+ {
+ clip = mlt_playlist_count( playlist ) - 1;
+ position = INT_MAX;
+ }
+
+ if ( mlt_playlist_get_clip_info( playlist, &info, clip ) == 0 )
+ {
+ int32_t frame_start = info.start;
+ int32_t frame_offset = position;
+
+ if ( frame_offset < 0 )
+ frame_offset = info.frame_out;
+ if ( frame_offset < info.frame_in )
+ frame_offset = info.frame_in;
+ if ( frame_offset >= info.frame_out )
+ frame_offset = info.frame_out;
+
+ mlt_producer_seek( producer, frame_start + frame_offset - info.frame_in );
+ }
+
+ miracle_unit_status_communicate( unit );
+}
+
+/** Get the index of the current clip.
+*/
+
+int miracle_unit_get_current_clip( miracle_unit unit )
+{
+ mlt_properties properties = unit->properties;
+ mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
+ int clip_index = mlt_playlist_current_clip( playlist );
+ return clip_index;
+}
+
+/** Set a clip's in point
+*/
+
+int miracle_unit_set_clip_in( miracle_unit unit, int index, int32_t position )
+{
+ mlt_properties properties = unit->properties;
+ mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
+ mlt_playlist_clip_info info;
+ int error = mlt_playlist_get_clip_info( playlist, &info, index );
+
+ if ( error == 0 )
+ {
+ miracle_unit_play( unit, 0 );
+ mlt_service_lock( MLT_PLAYLIST_SERVICE( playlist ) );
+ error = mlt_playlist_resize_clip( playlist, index, position, info.frame_out );
+ mlt_service_unlock( MLT_PLAYLIST_SERVICE( playlist ) );
+ update_generation( unit );
+ miracle_unit_change_position( unit, index, 0 );
+ }
+
+ return error;
+}
+
+/** Set a clip's out point.
+*/
+
+int miracle_unit_set_clip_out( miracle_unit unit, int index, int32_t position )
+{
+ mlt_properties properties = unit->properties;
+ mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
+ mlt_playlist_clip_info info;
+ int error = mlt_playlist_get_clip_info( playlist, &info, index );
+
+ if ( error == 0 )
+ {
+ miracle_unit_play( unit, 0 );
+ mlt_service_lock( MLT_PLAYLIST_SERVICE( playlist ) );
+ error = mlt_playlist_resize_clip( playlist, index, info.frame_in, position );
+ mlt_service_unlock( MLT_PLAYLIST_SERVICE( playlist ) );
+ update_generation( unit );
+ miracle_unit_status_communicate( unit );
+ miracle_unit_change_position( unit, index, -1 );
+ }
+
+ return error;
+}
+
+/** Step by specified position.
+*/
+
+void miracle_unit_step( miracle_unit unit, int32_t offset )
+{
+ mlt_properties properties = unit->properties;
+ mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
+ mlt_producer producer = MLT_PLAYLIST_PRODUCER( playlist );
+ mlt_position position = mlt_producer_frame( producer );
+ mlt_producer_seek( producer, position + offset );
+}
+
+/** Set the unit's clip mode regarding in and out points.
+*/
+
+//void miracle_unit_set_mode( miracle_unit unit, dv_player_clip_mode mode )
+//{
+ //dv_player player = miracle_unit_get_dv_player( unit );
+ //if ( player != NULL )
+ //dv_player_set_clip_mode( player, mode );
+ //miracle_unit_status_communicate( unit );
+//}
+
+/** Get the unit's clip mode regarding in and out points.
+*/
+
+//dv_player_clip_mode miracle_unit_get_mode( miracle_unit unit )
+//{
+ //dv_player player = miracle_unit_get_dv_player( unit );
+ //return dv_player_get_clip_mode( player );
+//}
+
+/** Set the unit's clip mode regarding eof handling.
+*/
+
+//void miracle_unit_set_eof_action( miracle_unit unit, dv_player_eof_action action )
+//{
+ //dv_player player = miracle_unit_get_dv_player( unit );
+ //dv_player_set_eof_action( player, action );
+ //miracle_unit_status_communicate( unit );
+//}
+
+/** Get the unit's clip mode regarding eof handling.
+*/
+
+//dv_player_eof_action miracle_unit_get_eof_action( miracle_unit unit )
+//{
+ //dv_player player = miracle_unit_get_dv_player( unit );
+ //return dv_player_get_eof_action( player );
+//}
+
+int miracle_unit_set( miracle_unit unit, char *name_value )
+{
+ mlt_properties properties = NULL;
+
+ if ( strncmp( name_value, "consumer.", 9 ) )
+ {
+ mlt_playlist playlist = mlt_properties_get_data( unit->properties, "playlist", NULL );
+ properties = MLT_PLAYLIST_PROPERTIES( playlist );
+ }
+ else
+ {
+ mlt_consumer consumer = mlt_properties_get_data( unit->properties, "consumer", NULL );
+ properties = MLT_CONSUMER_PROPERTIES( consumer );
+ name_value += 9;
+ }
+
+ return mlt_properties_parse( properties, name_value );
+}
+
+char *miracle_unit_get( miracle_unit unit, char *name )
+{
+ mlt_playlist playlist = mlt_properties_get_data( unit->properties, "playlist", NULL );
+ mlt_properties properties = MLT_PLAYLIST_PROPERTIES( playlist );
+ return mlt_properties_get( properties, name );
+}
+
+/** Release the unit
+
+ \todo error handling
+ \param unit A miracle_unit handle.
+*/
+
+void miracle_unit_close( miracle_unit unit )
+{
+ if ( unit != NULL )
+ {
+ miracle_log( LOG_DEBUG, "closing unit..." );
+ miracle_unit_terminate( unit );
+ mlt_properties_close( unit->properties );
+ free( unit );
+ miracle_log( LOG_DEBUG, "... unit closed." );
+ }
+}
+
projects / melted / blobdiff