Example ffmpeg conversion

gistfile1.txt

silver:2015 June hchapman$ ffmpeg -i BeerDemo_h264_aac.mp4 -c:v h264 -an OUTPUT.mp4
ffmpeg version 2.7.1 Copyright (c) 2000-2015 the FFmpeg developers
  built with Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/2.7.1 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-libcaca --enable-vda
  libavutil      54. 27.100 / 54. 27.100
  libavcodec     56. 41.100 / 56. 41.100
  libavformat    56. 36.100 / 56. 36.100
  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.  2.100 /  1.  2.100
  libpostproc    53.  3.100 / 53.  3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'BeerDemo_h264_aac.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf56.25.101
  Duration: 00:00:34.28, start: 0.026122, bitrate: 1894 kb/s
    Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1080x1920 [SAR 1:1 DAR 9:16], 1761 kb/s, 29 fps, 29 tbr, 14848 tbn, 58 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 22050 Hz, mono, fltp, 128 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
[libx264 @ 0x7fc33a84ae00] using SAR=1/1
[libx264 @ 0x7fc33a84ae00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 0x7fc33a84ae00] profile High, level 4.0
[libx264 @ 0x7fc33a84ae00] 264 - core 144 r2533 c8a773e - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'OUTPUT.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf56.36.100
    Stream #0:0(eng): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1080x1920 [SAR 1:1 DAR 9:16], q=-1--1, 29 fps, 14848 tbn, 29 tbc (default)
    Metadata:
      handler_name    : VideoHandler
      encoder         : Lavc56.41.100 libx264
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
frame=  995 fps= 65 q=-1.0 Lsize=    6616kB time=00:00:34.24 bitrate=1582.9kbits/s dup=1 drop=0
video:6606kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.158687%
[libx264 @ 0x7fc33a84ae00] frame I:7     Avg QP:12.90  size: 21733
[libx264 @ 0x7fc33a84ae00] frame P:495   Avg QP:19.70  size: 11379
[libx264 @ 0x7fc33a84ae00] frame B:493   Avg QP:20.53  size:  1985
[libx264 @ 0x7fc33a84ae00] consecutive B-frames: 32.4%  4.2%  1.5% 61.9%
[libx264 @ 0x7fc33a84ae00] mb I  I16..4: 60.6% 37.6%  1.7%
[libx264 @ 0x7fc33a84ae00] mb P  I16..4:  3.3%  8.0%  0.3%  P16..4:  9.6%  2.1%  1.1%  0.0%  0.0%    skip:75.6%
[libx264 @ 0x7fc33a84ae00] mb B  I16..4:  0.3%  0.5%  0.0%  B16..8:  5.6%  0.6%  0.1%  direct: 0.7%  skip:92.2%  L0:49.7% L1:44.7% BI: 5.6%
[libx264 @ 0x7fc33a84ae00] 8x8 transform intra:65.2% inter:86.5%
[libx264 @ 0x7fc33a84ae00] coded y,uvDC,uvAC intra: 21.9% 45.1% 12.0% inter: 2.6% 4.3% 0.9%
[libx264 @ 0x7fc33a84ae00] i16 v,h,dc,p: 60% 20%  7% 13%
[libx264 @ 0x7fc33a84ae00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 34% 23% 29%  2%  3%  2%  3%  1%  2%
[libx264 @ 0x7fc33a84ae00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 43% 23% 14%  2%  6%  4%  4%  3%  2%
[libx264 @ 0x7fc33a84ae00] i8c dc,h,v,p: 56% 19% 20%  5%
[libx264 @ 0x7fc33a84ae00] Weighted P-Frames: Y:3.8% UV:2.6%
[libx264 @ 0x7fc33a84ae00] ref P L0: 71.8% 14.5%  9.6%  3.9%  0.2%
[libx264 @ 0x7fc33a84ae00] ref B L0: 87.4% 10.6%  2.0%
[libx264 @ 0x7fc33a84ae00] ref B L1: 95.6%  4.4%
[libx264 @ 0x7fc33a84ae00] kb/s:1577.03
silver:2015 June hchapman$ ffmpeg
ffmpeg version 2.7.1 Copyright (c) 2000-2015 the FFmpeg developers
  built with Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn)
  configuration: --prefix=/usr/local/Cellar/ffmpeg/2.7.1 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-libcaca --enable-vda
  libavutil      54. 27.100 / 54. 27.100
  libavcodec     56. 41.100 / 56. 41.100
  libavformat    56. 36.100 / 56. 36.100
  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.  2.100 /  1.  2.100
  libpostproc    53.  3.100 / 53.  3.100
Hyper fast Audio and Video encoder
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...

Use -h to get full help or, even better, run 'man ffmpeg'