add log

zhangmeng

2019-09-16 2e1a71f9cd9d60c6ac1f09537d9649f96f1df811

 csrc/ffmpeg/format/FormatOut.cpp

@@ -364,6 +364,7 @@
    bool FormatOut::endWriter(){

        auto flag =  writeTrailer();
        closeResource();
        record_ = false;

        return flag;