ffmpeg -loglevel 48  -i HCVR_ch2_main_20190224170000_20190224180000.dav -vcodec libx264 -crf 24 channel_2_1700_1800.mp4
ffmpeg version 4.1-1 Copyright (c) 2000-2018 the FFmpeg developers
  built with gcc 8 (Debian 8.2.0-12)
  configuration: --prefix=/usr --extra-version=1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
  libavutil      56. 22.100 / 56. 22.100
  libavcodec     58. 35.100 / 58. 35.100
  libavformat    58. 20.100 / 58. 20.100
  libavdevice    58.  5.100 / 58.  5.100
  libavfilter     7. 40.101 /  7. 40.101
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  3.100 /  5.  3.100
  libswresample   3.  3.100 /  3.  3.100
  libpostproc    55.  3.100 / 55.  3.100
Splitting the commandline.
Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument '48'.
Reading option '-i' ... matched as input url with argument '/mnt/wtf/HCVR_ch2_main_20190224170000_20190224180000.dav'.
Reading option '-vcodec' ... matched as option 'vcodec' (force video codec ('copy' to copy stream)) with argument 'libx264'.
Reading option '-crf' ... matched as AVOption 'crf' with argument '24'.
Reading option 'channel_2_1700_1800.mp4' ... matched as output url.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option loglevel (set logging level) with argument 48.
Successfully parsed a group of options.
Parsing a group of options: input url /mnt/wtf/HCVR_ch2_main_20190224170000_20190224180000.dav.
Successfully parsed a group of options.
Opening an input file: /mnt/wtf/HCVR_ch2_main_20190224170000_20190224180000.dav.
[NULL @ 0x5566a46505c0] Opening '/mnt/wtf/HCVR_ch2_main_20190224170000_20190224180000.dav' for reading
[file @ 0x5566a4651080] Setting default whitelist 'file,crypto'
[AVIOContext @ 0x5566a4659440] Statistics: 1048576 bytes read, 0 seeks
/mnt/wtf/HCVR_ch2_main_20190224170000_20190224180000.dav: Invalid data found when processing input