Originally committed as revision 10136 to svn://svn.ffmpeg.org/ffmpeg/trunk
* demuxer must NOT set this
*/
int64_t start_time;
- /** decoding: duration of the stream, in stream time base. */
+ /**
+ * decoding: duration of the stream, in stream time base.
+ * If a source file does not specify a duration, but does specify
+ * a bitrate, this value will be estimates from bit rate and file size.
+ */
int64_t duration;
char language[4]; /** ISO 639 3-letter language code (empty string if undefined) */