/** Retrieve medatata value
*/
-const char* metadata_value(mlt_properties properties, char* name)
+char* metadata_value(mlt_properties properties, char* name)
{
- if (name == NULL) return "-";
+ if (name == NULL) return NULL;
char *meta = malloc( strlen(name) + 18 );
sprintf( meta, "meta.attr.%s.markup", name);
- return mlt_properties_get( properties, meta);
+ char *result = mlt_properties_get( properties, meta);
+ free(meta);
+ return result;
}
/** Convert frames to Timecode
*/
-const char* frame_to_timecode( int frames , int fps)
+char* frame_to_timecode( int frames , int fps)
{
+ if (fps == 0) return strdup("-");
char *res = malloc(12);
- if (fps == 0) return "-";
int seconds = frames / (int) fps;
frames = frames % ((int) fps);
int minutes = seconds / 60;
else
{
char *value = mlt_properties_get( feed, name + len );
- if ( value != NULL ) {
+ if ( value != NULL )
+ {
// 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[] = "";
+ char* keywords = strtok( value, "#" );
+ char result[512] = ""; // XXX: how much is enough?
int ct = 0;
- int fromStart = 0;
- if ( value[0] == '\\' ) fromStart = 1;
+ int fromStart = ( value[0] == '#' ) ? 1 : 0;
- while (keywords != NULL) {
- if (ct % 2 == fromStart)
- strcat( result, keywords);
- else if (!strcmp(keywords, "timecode")) {
- // special case: replace #tc# with current frame timecode
+ 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" );
- const char *tc = frame_to_timecode(pos, mlt_properties_get_int( MLT_FRAME_PROPERTIES( frame ), "fps" ));
- strcat( result, tc);
+ char *tc = frame_to_timecode( pos, mlt_properties_get_int( MLT_FRAME_PROPERTIES( frame ), "fps" ) );
+ strcat( result, tc );
+ free( tc );
}
- else {
+ else
+ {
// replace keyword with metadata value
- const char * metavalue = metadata_value(MLT_FRAME_PROPERTIES( frame ), keywords);
- if (metavalue == NULL) metavalue = "-";
- strcat( result, metavalue);
+ char *metavalue = metadata_value( MLT_FRAME_PROPERTIES( frame ), keywords );
+ strcat( result, metavalue ? metavalue : "-" );
}
- keywords = strtok ( NULL, "\\#" );
+ keywords = strtok( NULL, "#" );
ct++;
}
mlt_properties_set( properties, key, (char*) result );