ffprobe: honour special value for duration
authorStefano Sabatini <stefasab@gmail.com>
Tue, 5 Jun 2012 17:15:58 +0000 (19:15 +0200)
committerStefano Sabatini <stefasab@gmail.com>
Wed, 6 Jun 2012 21:26:04 +0000 (23:26 +0200)
commit9083d09ebbbb3bfe5d9ad5696af918fdb2454cfb
treedd00e08ba2fdf31306b39deb4f08bf81712e6dd0
parentad347bf45948437da0d6eee0e385d7a01efb6599
ffprobe: honour special value for duration

A duration value is undefined when is 0, take into consideration this
fact when printing optional fields.
ffprobe.c