pi@raspberrypi:~ $ ffmpeg_g -v debug -max_streams 1 -f v4l2 -list_formats all -i /dev/video0
ffmpeg version N-83027-g0ddc24d Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 5.2.0 (crosstool-NG crosstool-ng-1.22.0)
  configuration: --enable-cross-compile --cross-prefix=/opt/cross/x-tools/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi- --arch=armel --target-os=linux --prefix=/home/redacted/workspace/arm
  libavutil      55. 43.100 / 55. 43.100
  libavcodec     57. 71.100 / 57. 71.100
  libavformat    57. 62.100 / 57. 62.100
  libavdevice    57.  2.100 / 57.  2.100
  libavfilter     6. 68.100 /  6. 68.100
  libswscale      4.  3.101 /  4.  3.101
  libswresample   2.  4.100 /  2.  4.100
Splitting the commandline.
Reading option '-v' ... matched as option 'v' (set logging level) with argument 'debug'.
Reading option '-max_streams' ... matched as AVOption 'max_streams' with argument '1'.
Reading option '-f' ... matched as option 'f' (force format) with argument 'v4l2'.
Reading option '-list_formats' ... matched as AVOption 'list_formats' with argument 'all'.
Reading option '-i' ... matched as input url with argument '/dev/video0'.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option v (set logging level) with argument debug.
Successfully parsed a group of options.
Parsing a group of options: input url /dev/video0.
Applying option f (force format) with argument v4l2.
Successfully parsed a group of options.
Opening an input file: /dev/video0.
[NULL @ 0x3589d60] Value 0.000000 for parameter 'flags' is not a valid set of 32bit integer flags
	num: 1.000000
	intnum: 0
	den: 1
Segmentation fault