--------------Video information------------------------

 ffprobe -i Vanilla\ Cake\ Recipe\ Demonstration\ -\ Joyofbaking.com.mp4
ffprobe version N-77791-g93ac72a Copyright (c) 2007-2016 the FFmpeg developers
  built with gcc 4.9.2 (Ubuntu 4.9.2-10ubuntu13)
  configuration: --enable-gpl --enable-memory-poisoning --enable-avresample --enable-libx264 --extra-cflags=-I/usr/local/include --extra-ldflags=-L/usr/local/lib
  libavutil      55. 13.100 / 55. 13.100
  libavcodec     57. 22.100 / 57. 22.100
  libavformat    57. 21.101 / 57. 21.101
  libavdevice    57.  0.100 / 57.  0.100
  libavfilter     6. 23.100 /  6. 23.100
  libavresample   3.  0.  0 /  3.  0.  0
  libswscale      4.  0.100 /  4.  0.100
  libswresample   2.  0.101 /  2.  0.101
  libpostproc    54.  0.100 / 54.  0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Vanilla Cake Recipe Demonstration - Joyofbaking.com.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: isommp42
    creation_time   : 2014-01-01 06:57:52
  Duration: 00:21:47.24, start: 0.000000, bitrate: 1879 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 1684 kb/s, 23.98 fps, 23.98 tbr, 48k tbn, 47.95 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 191 kb/s (default)
    Metadata:
      creation_time   : 2014-01-01 06:58:12
      handler_name    : IsoMedia File Produced by Google, 5-11-201



---------------perf report----------------

# started on Wed Jan 13 16:59:31 2016


 Performance counter stats for 'ffmpeg -i Vanilla Cake Recipe Demonstration - Joyofbaking.com.mp4 -vcodec libx264 -acodec aac -strict experimental -threads 0 -level 31 -r 30000/1001 -b 1900k -pix_fmt yuv420p -tune ssim -profile high -vf setdar=16:9,setsar=1:1 -x264opts stats=x264_00_2pass.log:bframes=4:b-adapt=0:b-bias=20:b-pyramid=normal:ref=1:partitions=all:direct=auto:me=umh:merange=12:subme=9:trellis=0:no-fast-pskip=1:no-dct-decimate=1:fps=29.97 -f mp4 -y /dev/null':

    9027978.264280      task-clock (msec)         #    3.599 CPUs utilized
         14,37,767      context-switches          #    0.159 K/sec
            65,125      cpu-migrations            #    0.007 K/sec
          2,15,535      page-faults               #    0.024 K/sec
2,55,25,18,60,64,733      cycles                    #    2.827 GHz                     [66.68%]
 3,21,01,27,20,238      stalled-cycles-frontend   #    1.26% frontend cycles idle    [50.01%]
1,27,44,08,38,73,206      stalled-cycles-backend    #   49.93% backend  cycles idle    [49.99%]
3,56,31,18,31,13,583      instructions              #    1.40  insns per cycle
                                                  #    0.36  stalled cycles per insn [66.66%]
31,29,02,36,39,339      branches                  #  346.592 M/sec                   [49.99%]
 1,98,81,76,94,754      branch-misses             #    6.35% of all branches         [50.01%]

    2508.786470587 seconds time elapsed