libavdevice/lavfi: check avfilter_graph_dump return value
authorZhao Zhili <zhilizhao@tencent.com>
Thu, 21 Nov 2019 07:08:18 +0000 (15:08 +0800)
committerMichael Niedermayer <michael@niedermayer.cc>
Fri, 29 Nov 2019 18:58:35 +0000 (19:58 +0100)
commit19956d01ccf1aca2902e8192c8768903cee3be06
tree3d3a565579ebf83b2829f31eaf6513889660cfdf
parent2205fb281074a31388e78c615193410cc9c10042
libavdevice/lavfi: check avfilter_graph_dump return value

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
libavdevice/lavfi.c