[Recorder]      Command failed: ffmpeg -filter_complex "movie=/tmp/records/1493314022769.webm[main]; amovie=/tmp/records/1493314022769.webm[main2]; amovie=/tmp/records/1493314022769.ogg[main3]; [main2][main3]amix[aout], [main][aout]concat=n=1:v=1:a=1" /tmp/records/res/1493314022769.webm
recorder-2 (out): ffmpeg version N-85588-g6108805 Copyright (c) 2000-2017 the FFmpeg developers
recorder-2 (out):   built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-11)
recorder-2 (out):   configuration: --extra-cflags=-I/home/unix-prog_server/rpmbuild/BUILD/sbis-ffmpeg-3.8.0/build//usr/include --extra-ldflags='-L/home/unix-prog_server/rpmbuild/BUILD/sbis-ffmpeg-3.8.0/build//usr/lib64 -ldl' --pkg-config-flags=--static --prefix=/usr --bindir=/usr/bin --libdir=/usr/lib64 --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libx264
recorder-2 (out):   libavutil      55. 61.100 / 55. 61.100
recorder-2 (out):   libavcodec     57. 93.100 / 57. 93.100
recorder-2 (out):   libavformat    57. 72.101 / 57. 72.101
recorder-2 (out):   libavdevice    57.  7.100 / 57.  7.100
recorder-2 (out):   libavfilter     6. 84.101 /  6. 84.101
recorder-2 (out):   libswscale      4.  7.101 /  4.  7.101
recorder-2 (out):   libswresample   2.  8.100 /  2.  8.100
recorder-2 (out):   libpostproc    54.  6.100 / 54.  6.100
recorder-2 (out): Automatic encoder selection failed for output stream #0:0. Default encoder for format webm (codec vp8) is probably disabled. Please choose an encoder manually.
recorder-2 (out): Error selecting an encoder for stream 0:0