/mnt/t2/usr/src/git/FFmpeg/ffmpeg -i bad.avi -codec copy -bsf:v mpeg4_unpack_bframes good.avi
ffmpeg version N-72616-gb0af404 Copyright (c) 2000-2015 the FFmpeg developers
  built with gcc 4.9.2 (Debian 4.9.2-20)
  configuration: --extra-cflags='-g -O2 -fstack-protector-strong -Wformat -Werror=format-security ' --extra-ldflags='-Wl,-z,relro' --enable-libmp3lame --enable-gpl --enable-nonfree --enable-libvorbis --enable-pthreads --enable-libxvid --enable-postproc --enable-libgsm --enable-libtheora --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-libvpx --enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter --enable-libfreetype --enable-libbluray --enable-openssl --enable-libass --enable-libopus --enable-fontconfig --enable-libpulse --disable-mips32r2 --disable-mipsdspr1 --disable-mipsdspr2 --enable-avresample --disable-htmlpages --disable-podpages --enable-libx265 --enable-libiec61883 --enable-libdc1394 --disable-altivec
  libavutil      54. 26.101 / 54. 26.101
  libavcodec     56. 41.101 / 56. 41.101
  libavformat    56. 34.100 / 56. 34.100
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 16.101 /  5. 16.101
  libavresample   2.  1.  0 /  2.  1.  0
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  1.100 /  1.  1.100
  libpostproc    53.  3.100 / 53.  3.100
Input #0, avi, from 'bad.avi':
  Metadata:
    encoder         : Lavf56.25.101
  Duration: 01:49:22.21, start: 0.000000, bitrate: 1797 kb/s
    Stream #0:0: Video: mpeg4 (Advanced Simple Profile) (FMP4 / 0x34504D46), yuv420p, 656x272 [SAR 1:1 DAR 41:17], 1587 kb/s, 47.95 fps, 23.98 tbr, 47.95 tbn, 23.98 tbc
    Stream #0:1: Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, stereo, fltp, 192 kb/s
File 'good.avi' already exists. Overwrite ? [y/N] y
Output #0, avi, to 'good.avi':
  Metadata:
    ISFT            : Lavf56.34.100
    Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 656x272 [SAR 1:1 DAR 41:17], q=2-31, 1587 kb/s, 47.95 fps, 23.98 tbr, 47.95 tbn, 47.95 tbc
    Stream #0:1: Audio: ac3 ([0] [0][0] / 0x2000), 48000 Hz, stereo, 192 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
[NULL @ 0x3155440] Missing one N-VOP packet, discarding one B-frame.=1738.3kbits/s
frame=157335 fps=2194 q=-1.0 Lsize= 1439492kB time=01:49:22.17 bitrate=1797.0kbits/s
video:1271274kB audio:153800kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.011714%