ffmpeg_opt: Do not overwrite output if there is no input
authorMichael Niedermayer <michaelni@gmx.at>
Thu, 26 Mar 2015 23:42:26 +0000 (00:42 +0100)
committerMichael Niedermayer <michaelni@gmx.at>
Sat, 28 Mar 2015 22:00:07 +0000 (23:00 +0100)
commit6a3833e1411e788819fd132aa60cf3f66acbbe03
tree5c3890739eb413ef2d97cb830608cc8da9afebf3
parentdcac15a84c8fc087ec85b2172db13d2e0d543e50
ffmpeg_opt: Do not overwrite output if there is no input

Fixes Ticket4254

Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
ffmpeg_opt.c