ffmpeg

MacBook-Pro:am elad$ ./assets/ffmpeg/ffmpeg -i ./videos/10.mp4 -i ./assets/music/03-Dots-Kalotone_spoken.mp3 -map 0:v -map 1:a -c copy ./videos/10-music.mp4
ffmpeg version 2.5.2 Copyright (c) 2000-2014 the FFmpeg developers
  built on Dec 30 2014 11:31:18 with llvm-gcc 4.2.1 (LLVM build 2336.11.00)
  configuration: --prefix=/Volumes/Ramdisk/sw --enable-gpl --enable-pthreads --enable-version3 --enable-libspeex --enable-libvpx --disable-decoder=libvpx --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-avfilter --enable-libopencore_amrwb --enable-libopencore_amrnb --enable-filters --enable-libgsm --enable-libvidstab --enable-libx265 --arch=x86_64 --enable-runtime-cpudetect
  libavutil      54. 15.100 / 54. 15.100
  libavcodec     56. 13.100 / 56. 13.100
  libavformat    56. 15.102 / 56. 15.102
  libavdevice    56.  3.100 / 56.  3.100
  libavfilter     5.  2.103 /  5.  2.103
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  1.100 /  1.  1.100
  libpostproc    53.  3.100 / 53.  3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './videos/10.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf56.15.102
  Duration: 00:00:15.00, start: 0.000000, bitrate: 48 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 500x500 [SAR 1:1 DAR 1:1], 44 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
    Metadata:
      handler_name    : VideoHandler
Input #1, mp3, from './assets/music/03-Dots-Kalotone_spoken.mp3':
  Metadata:
    encoder         : LAME 64bits version 3.98.2 (http://www.mp3dev.org/)
    title           : Dots
    artist          : Kalotone
    album           : End Game
    TIT1            : magnatune
    track           : 3
    TLEN            : 140868
    genre           : Electronic
    date            : 2014
  Duration: 00:02:20.93, start: 0.025057, bitrate: 128 kb/s
    Stream #1:0: Audio: mp3, 44100 Hz, stereo, s16p, 128 kb/s
    Metadata:
      encoder         : LAME3.98r
    Side data:
      replaygain: track gain - -5.500000, track peak - unknown, album gain - unknown, album peak - unknown,
File './videos/10-music.mp4' already exists. Overwrite ? [y/N] y
Output #0, mp4, to './videos/10-music.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf56.15.102
    Stream #0:0(und): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 500x500 [SAR 1:1 DAR 1:1], q=2-31, 44 kb/s, 30 fps, 15360 tbn, 15360 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1: Audio: mp3 (i[0][0][0] / 0x0069), 44100 Hz, stereo, 128 kb/s
    Metadata:
      encoder         : LAME3.98r
    Side data:
      replaygain: track gain - -5.500000, track peak - unknown, album gain - unknown, album peak - unknown,
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #1:0 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame=  450 fps=0.0 q=-1.0 Lsize=    2318kB time=00:02:20.90 bitrate= 134.8kbits/s
video:82kB audio:2202kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.489632%