ffmpeg: explicitly write headers for files with no streams
authorHendrik Leppkes <h.leppkes@gmail.com>
Fri, 7 Oct 2016 13:44:39 +0000 (15:44 +0200)
committerHendrik Leppkes <h.leppkes@gmail.com>
Fri, 7 Oct 2016 14:02:14 +0000 (16:02 +0200)
commitab7e83efed9c8fb30777287304c0de3cc614ce57
treee8750d6e4819c9789609a04920cc3888fd0af23b
parent572f16e10041c9af131709f88a53750a4b3db802
ffmpeg: explicitly write headers for files with no streams

Recent changes to ffmpeg.c tied output file init to stream init, which broke
stream-less files, specifically ffmetadata output.
ffmpeg.c