* Copyright (C) 2004-2005 Ushodaya Enterprises Limited
* Author: Charles Yates <charles.yates@pandora.be>
*
- * 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 library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This program is distributed in the hope that it will be useful,
+ * This library 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.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser 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.
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-#include "filter_data.h"
#include <framework/mlt.h>
#include <stdlib.h>
#include <string.h>
+#include <math.h>
/** Handle the profile.
*/
// If none is specified, pick up the default for this normalisation
if ( profile == NULL )
- sprintf( temp, "%s/feeds/%s/data_fx.properties", mlt_factory_prefix( ), mlt_environment( "MLT_NORMALISATION" ) );
+ sprintf( temp, "%s/feeds/%s/data_fx.properties", mlt_environment( "MLT_DATA" ), mlt_environment( "MLT_NORMALISATION" ) );
else if ( strchr( profile, '%' ) )
- sprintf( temp, "%s/feeds/%s/%s", mlt_factory_prefix( ), mlt_environment( "MLT_NORMALISATION" ), strchr( profile, '%' ) + 1 );
+ sprintf( temp, "%s/feeds/%s/%s", mlt_environment( "MLT_DATA" ), mlt_environment( "MLT_NORMALISATION" ), strchr( profile, '%' ) + 1 );
else
strcpy( temp, profile );
char *value = mlt_properties_get_value( profile_properties, i );
if ( result == NULL && !strcmp( name, type ) && result == NULL )
- result = mlt_factory_filter( value, NULL );
+ result = mlt_factory_filter( mlt_service_profile( MLT_FILTER_SERVICE( filter ) ), value, NULL );
else if ( result != NULL && !strncmp( name, type, type_len ) && name[ type_len ] == '.' )
mlt_properties_set( MLT_FILTER_PROPERTIES( result ), name + type_len + 1, value );
else if ( result != NULL )
return result;
}
+/** Retrieve medatata value
+*/
+
+char* metadata_value(mlt_properties properties, char* name)
+{
+ if (name == NULL) return NULL;
+ char *meta = malloc( strlen(name) + 18 );
+ sprintf( meta, "meta.attr.%s.markup", name);
+ char *result = mlt_properties_get( properties, meta);
+ free(meta);
+ return result;
+}
+
+/** Convert frames to Timecode
+*/
+
+char* frame_to_timecode( int frames, double fps)
+{
+ if (fps == 0) return strdup("-");
+ char *res = malloc(12);
+ int seconds = frames / fps;
+ frames = frames % lrint( fps );
+ int minutes = seconds / 60;
+ seconds = seconds % 60;
+ int hours = minutes / 60;
+ minutes = minutes % 60;
+ sprintf(res, "%.2d:%.2d:%.2d:%.2d", hours, minutes, seconds, frames);
+ return res;
+}
+
/** Process the frame for the requested type
*/
{
int i = 0;
mlt_properties properties = MLT_FILTER_PROPERTIES( requested );
- static char *prefix = "properties.";
+ static const char *prefix = "properties.";
int len = strlen( prefix );
// Determine if this is an absolute or relative feed
{
if ( !strncmp( name + len, "length[", 7 ) )
{
- mlt_properties_set_position( properties, key, length / period );
+ mlt_properties_set_position( properties, key, ( length - period ) / period );
}
else
{
char *value = mlt_properties_get( feed, name + len );
if ( value != NULL )
- mlt_properties_set( properties, key, value );
+ {
+ // check for metadata keywords in metadata markup if user requested so
+ if ( mlt_properties_get_int( filter_properties, "dynamic" ) == 1 && !strcmp( name + strlen( name ) - 6, "markup") )
+ {
+ // Find keywords which should be surrounded by '#', like: #title#
+ char* keywords = strtok( value, "#" );
+ char result[512] = ""; // XXX: how much is enough?
+ int ct = 0;
+ int fromStart = ( value[0] == '#' ) ? 1 : 0;
+
+ while ( keywords != NULL )
+ {
+ if ( ct % 2 == fromStart )
+ {
+ // backslash in front of # suppresses substitution
+ if ( keywords[ strlen( keywords ) -1 ] == '\\' )
+ {
+ // keep characters except backslash
+ strncat( result, keywords, strlen( keywords ) -1 );
+ strcat( result, "#" );
+ ct++;
+ }
+ else
+ {
+ strcat( result, keywords );
+ }
+ }
+ else if ( !strcmp( keywords, "timecode" ) )
+ {
+ // special case: replace #timecode# with current frame timecode
+ int pos = mlt_properties_get_int( feed, "position" );
+ char *tc = frame_to_timecode( pos, mlt_profile_fps( mlt_service_profile( MLT_FILTER_SERVICE( filter ) ) ) );
+ strcat( result, tc );
+ free( tc );
+ }
+ else if ( !strcmp( keywords, "frame" ) )
+ {
+ // special case: replace #frame# with current frame number
+ int pos = mlt_properties_get_int( feed, "position" );
+ char s[12];
+ snprintf( s, sizeof(s) - 1, "%d", pos );
+ strcat( result, s );
+ }
+ else
+ {
+ // replace keyword with metadata value
+ char *metavalue = metadata_value( MLT_FRAME_PROPERTIES( frame ), keywords );
+ strcat( result, metavalue ? metavalue : "-" );
+ }
+ keywords = strtok( NULL, "#" );
+ ct++;
+ }
+ mlt_properties_set( properties, key, (char*) result );
+ }
+ else mlt_properties_set( properties, key, value );
+ }
}
}
}
return error;
}
+void process_queue( mlt_deque data_queue, mlt_frame frame, mlt_filter filter )
+{
+ if ( data_queue != NULL )
+ {
+ // Create a new queue for those that we can't handle
+ mlt_deque temp_queue = mlt_deque_init( );
+
+ // Iterate through each entry on the queue
+ while ( mlt_deque_peek_front( data_queue ) != NULL )
+ {
+ // Get the data feed
+ mlt_properties feed = mlt_deque_pop_front( data_queue );
+
+ if ( mlt_properties_get( MLT_FILTER_PROPERTIES( filter ), "debug" ) != NULL )
+ mlt_properties_debug( feed, mlt_properties_get( MLT_FILTER_PROPERTIES( filter ), "debug" ), stderr );
+
+ // Process the data feed...
+ if ( process_feed( feed, filter, frame ) == 0 )
+ mlt_properties_close( feed );
+ else
+ mlt_deque_push_back( temp_queue, feed );
+ }
+
+ // Now put the unprocessed feeds back on the stack
+ while ( mlt_deque_peek_front( temp_queue ) )
+ {
+ // Get the data feed
+ mlt_properties feed = mlt_deque_pop_front( temp_queue );
+
+ // Put it back on the data queue
+ mlt_deque_push_back( data_queue, feed );
+ }
+
+ // Close the temporary queue
+ mlt_deque_close( temp_queue );
+ }
+}
+
/** Get the image.
*/
// Get the frame properties
mlt_properties frame_properties = MLT_FRAME_PROPERTIES( frame );
- // Fetch the data queue
- mlt_deque data_queue = mlt_properties_get_data( frame_properties, "data_queue", NULL );
+ mlt_service_lock( MLT_FILTER_SERVICE( filter ) );
- // Create a new queue for those that we can't handle
- mlt_deque temp_queue = mlt_deque_init( );
+ // Track specific
+ process_queue( mlt_properties_get_data( frame_properties, "data_queue", NULL ), frame, filter );
- // Iterate through each entry on the queue
- while ( data_queue != NULL && mlt_deque_peek_front( data_queue ) != NULL )
- {
- // Get the data feed
- mlt_properties feed = mlt_deque_pop_front( data_queue );
-
- // Process the data feed...
- if ( process_feed( feed, filter, frame ) == 0 )
- mlt_properties_close( feed );
- else
- mlt_deque_push_back( temp_queue, feed );
- }
-
- // Now put the unprocessed feeds back on the stack
- while ( data_queue != NULL && mlt_deque_peek_front( temp_queue ) )
- {
- // Get the data feed
- mlt_properties feed = mlt_deque_pop_front( temp_queue );
-
- // Put it back on the data queue
- mlt_deque_push_back( data_queue, feed );
- }
+ // Global
+ process_queue( mlt_properties_get_data( frame_properties, "global_queue", NULL ), frame, filter );
- // Close the temporary queue
- mlt_deque_close( temp_queue );
+ mlt_service_unlock( MLT_FILTER_SERVICE( filter ) );
// Need to get the image
return mlt_frame_get_image( frame, image, format, width, height, 1 );
/** Constructor for the filter.
*/
-mlt_filter filter_data_show_init( char *arg )
+mlt_filter filter_data_show_init( mlt_profile profile, mlt_service_type type, const char *id, void *arg )
{
// Create the filter
mlt_filter this = mlt_filter_new( );
projects / mlt / blobdiff