return 0;
}
-/** Convert a base 10 or base 16 string to an integer.
+/** Parse a SMIL clock value.
+ *
+ * \private \memberof mlt_property_s
+ * \param s the string to parse
+ * \param fps frames per second
+ * \param locale the locale to use for parsing a real number value
+ * \return position in frames
+ */
+
+static int time_clock_to_frames( const char *s, double fps, locale_t locale )
+{
+ char *pos, *copy = strdup( s );
+ int hours = 0, minutes = 0;
+ double seconds;
+
+ s = copy;
+ pos = strrchr( s, ':' );
+ if ( pos ) {
+#if defined(__GLIBC__) || defined(__DARWIN__)
+ if ( locale )
+ seconds = strtod_l( pos + 1, NULL, locale );
+ else
+#endif
+ seconds = strtod( pos + 1, NULL );
+ *pos = 0;
+ pos = strrchr( s, ':' );
+ if ( pos ) {
+ minutes = atoi( pos + 1 );
+ *pos = 0;
+ hours = atoi( s );
+ }
+ else {
+ minutes = atoi( s );
+ }
+ }
+ else {
+#if defined(__GLIBC__) || defined(__DARWIN__)
+ if ( locale )
+ seconds = strtod_l( s, NULL, locale );
+ else
+#endif
+ seconds = strtod( s, NULL );
+ }
+ free( copy );
+
+ return fps * ( (hours * 3600) + (minutes * 60) + seconds ) + 0.5;
+}
+
+/** Parse a SMPTE timecode string.
+ *
+ * \private \memberof mlt_property_s
+ * \param s the string to parse
+ * \param fps frames per second
+ * \return position in frames
+ */
+
+static int time_code_to_frames( const char *s, double fps )
+{
+ char *pos, *copy = strdup( s );
+ int hours = 0, minutes = 0, seconds = 0, frames;
+
+ s = copy;
+ pos = strrchr( s, ';' );
+ if ( !pos )
+ pos = strrchr( s, ':' );
+ if ( pos ) {
+ frames = atoi( pos + 1 );
+ *pos = 0;
+ pos = strrchr( s, ':' );
+ if ( pos ) {
+ seconds = atoi( pos + 1 );
+ *pos = 0;
+ pos = strrchr( s, ':' );
+ if ( pos ) {
+ minutes = atoi( pos + 1 );
+ *pos = 0;
+ hours = atoi( s );
+ }
+ else {
+ minutes = atoi( s );
+ }
+ }
+ else {
+ seconds = atoi( s );
+ }
+ }
+ else {
+ frames = atoi( s );
+ }
+ free( copy );
+
+ return frames + ( fps * ( (hours * 3600) + (minutes * 60) + seconds ) + 0.5 );
+}
+
+/** Convert a string to an integer.
*
* The string must begin with '0x' to be interpreted as hexadecimal.
* Otherwise, it is interpreted as base 10.
+ *
* If the string begins with '#' it is interpreted as a hexadecimal color value
* in the form RRGGBB or AARRGGBB. Color values that begin with '0x' are
* always in the form RRGGBBAA where the alpha components are not optional.
* right to obtain RGB without alpha in order to make it do a logical instead
* of arithmetic shift.
*
+ * If the string contains a colon it is interpreted as a time value. If it also
+ * contains a period or comma character, the string is parsed as a clock value:
+ * HH:MM:SS. Otherwise, the time value is parsed as a SMPTE timecode: HH:MM:SS:FF.
* \private \memberof mlt_property_s
* \param value a string to convert
+ * \param fps frames per second, used when converting from time value
+ * \param locale the locale to use when converting from time clock value
* \return the resultant integer
*/
-static inline int mlt_property_atoi( const char *value )
+static int mlt_property_atoi( const char *value, double fps, locale_t locale )
{
- if ( value == NULL )
- return 0;
// Parse a hex color value as #RRGGBB or #AARRGGBB.
if ( value[0] == '#' )
{
{
return strtoul( value + 2, NULL, 16 );
}
+ else if ( fps > 0 && strchr( value, ':' ) )
+ {
+ if ( strchr( value, '.' ) || strchr( value, ',' ) )
+ return time_clock_to_frames( value, fps, locale );
+ else
+ return time_code_to_frames( value, fps );
+ }
else
{
return strtol( value, NULL, 10 );
*
* \public \memberof mlt_property_s
* \param self a property
+ * \param fps frames per second, used when converting from time value
+ * \param locale the locale to use when converting from time clock value
* \return an integer value
*/
-int mlt_property_get_int( mlt_property self )
+int mlt_property_get_int( mlt_property self, double fps, locale_t locale )
{
if ( self->types & mlt_prop_int )
return self->prop_int;
else if ( self->types & mlt_prop_int64 )
return ( int )self->prop_int64;
else if ( ( self->types & mlt_prop_string ) && self->prop_string )
- return mlt_property_atoi( self->prop_string );
+ return mlt_property_atoi( self->prop_string, fps, locale );
return 0;
}
-/** Get the property as a floating point.
+/** Convert a string to a floating point number.
*
- * \public \memberof mlt_property_s
- * \param self a property
- * \return a floating point value
+ * If the string contains a colon it is interpreted as a time value. If it also
+ * contains a period or comma character, the string is parsed as a clock value:
+ * HH:MM:SS. Otherwise, the time value is parsed as a SMPTE timecode: HH:MM:SS:FF.
+ * \private \memberof mlt_property_s
+ * \param value the string to convert
+ * \param fps frames per second, used when converting from time value
+ * \param locale the locale to use when converting from time clock value
+ * \return the resultant real number
*/
-
-double mlt_property_get_double( mlt_property self )
+static double mlt_property_atof( const char *value, double fps, locale_t locale )
{
- if ( self->types & mlt_prop_double )
- return self->prop_double;
- else if ( self->types & mlt_prop_int )
- return ( double )self->prop_int;
- else if ( self->types & mlt_prop_position )
- return ( double )self->prop_position;
- else if ( self->types & mlt_prop_int64 )
- return ( double )self->prop_int64;
- else if ( ( self->types & mlt_prop_string ) && self->prop_string )
- return atof( self->prop_string );
- return 0;
+ if ( fps > 0 && strchr( value, ':' ) )
+ {
+ if ( strchr( value, '.' ) || strchr( value, ',' ) )
+ return time_clock_to_frames( value, fps, locale );
+ else
+ return time_code_to_frames( value, fps );
+ }
+ else
+ {
+#if defined(__GLIBC__) || defined(__DARWIN__)
+ if ( locale )
+ return strtod_l( value, NULL, locale );
+#endif
+ return strtod( value, NULL );
+ }
}
-/** Get the property (with locale) as a floating point.
+/** Get the property as a floating point.
*
* \public \memberof mlt_property_s
* \param self a property
+ * \param fps frames per second, used when converting from time value
* \param locale the locale to use for this conversion
* \return a floating point value
*/
-double mlt_property_get_double_l( mlt_property self, locale_t locale )
+double mlt_property_get_double( mlt_property self, double fps, locale_t locale )
{
if ( self->types & mlt_prop_double )
return self->prop_double;
return ( double )self->prop_position;
else if ( self->types & mlt_prop_int64 )
return ( double )self->prop_int64;
-#if defined(__GLIBC__) || defined(__DARWIN__)
- else if ( locale && ( self->types & mlt_prop_string ) && self->prop_string )
- return strtod_l( self->prop_string, NULL, locale );
-#endif
else if ( ( self->types & mlt_prop_string ) && self->prop_string )
- return strtod( self->prop_string, NULL );
+ return mlt_property_atof( self->prop_string, fps, locale );
return 0;
}
* A position is an offset time in terms of frame units.
* \public \memberof mlt_property_s
* \param self a property
+ * \param fps frames per second, used when converting from time value
+ * \param locale the locale to use when converting from time clock value
* \return the position in frames
*/
-mlt_position mlt_property_get_position( mlt_property self )
+mlt_position mlt_property_get_position( mlt_property self, double fps, locale_t locale )
{
if ( self->types & mlt_prop_position )
return self->prop_position;
else if ( self->types & mlt_prop_int64 )
return ( mlt_position )self->prop_int64;
else if ( ( self->types & mlt_prop_string ) && self->prop_string )
- return ( mlt_position )atol( self->prop_string );
+ return ( mlt_position )mlt_property_atoi( self->prop_string, fps, locale );
return 0;
}
}
pthread_mutex_unlock( &self->mutex );
}
+
+/** Convert frame count to a SMPTE timecode string.
+ *
+ * \private \memberof mlt_property_s
+ * \param frames a frame count
+ * \param fps frames per second
+ * \param[out] s the string to write into - must have enough space to hold largest time string
+ */
+
+static void time_smpte_from_frames( int frames, double fps, char *s )
+{
+ int hours, mins, secs;
+ char frame_sep = ':';
+
+ if ( fps == 30000.0/1001.0 )
+ {
+ fps = 30.0;
+ int i, max_frames = frames;
+ for ( i = 1800; i <= max_frames; i += 1800 )
+ {
+ if ( i % 18000 )
+ {
+ max_frames += 2;
+ frames += 2;
+ }
+ }
+ frame_sep = ';';
+ }
+ hours = frames / ( fps * 3600 );
+ frames -= hours * ( fps * 3600 );
+ mins = frames / ( fps * 60 );
+ frames -= mins * ( fps * 60 );
+ secs = frames / fps;
+ frames -= secs * fps;
+
+ sprintf( s, "%02d:%02d:%02d%c%02d", hours, mins, secs, frame_sep, frames );
+}
+
+/** Convert frame count to a SMIL clock value string.
+ *
+ * \private \memberof mlt_property_s
+ * \param frames a frame count
+ * \param fps frames per second
+ * \param[out] s the string to write into - must have enough space to hold largest time string
+ */
+
+static void time_clock_from_frames( int frames, double fps, char *s )
+{
+ int hours, mins;
+ double secs;
+
+ hours = frames / ( fps * 3600 );
+ frames -= hours * ( fps * 3600 );
+ mins = frames / ( fps * 60 );
+ frames -= mins * ( fps * 60 );
+ secs = (double) frames / fps;
+
+ sprintf( s, "%02d:%02d:%06.3f", hours, mins, secs );
+}
+
+/** Get the property as a time string.
+ *
+ * The time value can be either a SMPTE timecode or SMIL clock value.
+ * The caller is not responsible for deallocating the returned string!
+ * The string is deallocated when the property is closed.
+ * \public \memberof mlt_property_s
+ * \param self a property
+ * \param format the time format that you want
+ * \param fps frames per second
+ * \param locale the locale to use for this conversion
+ * \return a string representation of the property or NULL if failed
+ */
+
+char *mlt_property_get_time( mlt_property self, mlt_time_format format, double fps, locale_t locale )
+{
+ char *orig_localename = NULL;
+ const char *localename = "";
+
+ // Optimization for mlt_time_frames
+ if ( format == mlt_time_frames )
+ return mlt_property_get_string_l( self, locale );
+
+ // Remove existing string
+ if ( self->prop_string )
+ mlt_property_set_int( self, mlt_property_get_int( self, fps, locale ) );
+
+ // Use the specified locale
+ if ( locale )
+ {
+ // TODO: when glibc gets sprintf_l, start using it! For now, hack on setlocale.
+ // Save the current locale
+#if defined(__DARWIN__)
+ localname = querylocale( LC_NUMERIC, locale );
+#elif defined(__GLIBC__)
+ localename = locale->__names[ LC_NUMERIC ];
+#else
+ // TODO: not yet sure what to do on other platforms
+#endif
+ // Protect damaging the global locale from a temporary locale on another thread.
+ pthread_mutex_lock( &self->mutex );
+
+ // Get the current locale
+ orig_localename = strdup( setlocale( LC_NUMERIC, NULL ) );
+
+ // Set the new locale
+ setlocale( LC_NUMERIC, localename );
+ }
+
+ // Convert number to string
+ if ( self->types & mlt_prop_int )
+ {
+ self->types |= mlt_prop_string;
+ self->prop_string = malloc( 32 );
+ if ( format == mlt_time_clock )
+ time_clock_from_frames( self->prop_int, fps, self->prop_string );
+ else
+ time_smpte_from_frames( self->prop_int, fps, self->prop_string );
+ }
+ else if ( self->types & mlt_prop_position )
+ {
+ self->types |= mlt_prop_string;
+ self->prop_string = malloc( 32 );
+ if ( format == mlt_time_clock )
+ time_clock_from_frames( (int) self->prop_position, fps, self->prop_string );
+ else
+ time_smpte_from_frames( (int) self->prop_position, fps, self->prop_string );
+ }
+ else if ( self->types & mlt_prop_double )
+ {
+ self->types |= mlt_prop_string;
+ self->prop_string = malloc( 32 );
+ if ( format == mlt_time_clock )
+ time_clock_from_frames( self->prop_double, fps, self->prop_string );
+ else
+ time_smpte_from_frames( self->prop_double, fps, self->prop_string );
+ }
+ else if ( self->types & mlt_prop_int64 )
+ {
+ self->types |= mlt_prop_string;
+ self->prop_string = malloc( 32 );
+ if ( format == mlt_time_clock )
+ time_clock_from_frames( (int) self->prop_int64, fps, self->prop_string );
+ else
+ time_smpte_from_frames( (int) self->prop_int64, fps, self->prop_string );
+ }
+
+ // Restore the current locale
+ if ( locale )
+ {
+ setlocale( LC_NUMERIC, orig_localename );
+ free( orig_localename );
+ pthread_mutex_unlock( &self->mutex );
+ }
+
+ // Return the string (may be NULL)
+ return self->prop_string;
+}
projects / mlt / commitdiff