title: ffmpeg Using -movflags faststart
body: <p>I tried to use the command <strong>-movflags faststart</strong> </p>
  
  <p>And got the following error:</p>
  
  <blockquote>
    <p>Microsoft Windows [Version 6.0.6002] Copyright (c) 2006 Microsoft
    Corporation.  All rights reserved.</p>
    
    <p><strong>C:\uploads\1\videos>ffmpeg -i simple1.mp4 -codec  copy -map 0 -movflags faststart output.mp4</strong></p>
    
    <p>-movflags faststart output.mp4 ffmpeg version N-34549-g13b7781, Copyright (c) 2000-2011 the FFmpeg developers   built on Nov  6 2011
    22:02:08 with gcc 4.6.1   configuration: --enable-gpl
    --enable-version3 --disable-w32threads --enable-ru ntime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libope ncore-amrnb --enable-libopencore-amrwb --enable-libfreetype
    --enable-libgsm --en able-libmp3lame --enable-libopenjpeg --enable-librtmp --enable-libschroedinger -
    -enable-libspeex --enable-libtheora --enable-libvo-aacenc --enable-libvo-amrwben c --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable- libxvid --enable-zlib   libavutil    51. 24. 0 / 51. 24. 0   libavcodec   53. 28. 0 / 53. 28.
    0   libavformat  53. 19. 0 / 53. 19. 0   libavdevice  53.  4. 0 / 53. 
    4. 0   libavfilter   2. 47. 0 /  2. 47. 0   libswscale    2.  1. 0 /  2.  1. 0   libpostproc  51.  2. 0 / 51.  2. 0 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'simple1.mp4':   Metadata:
        major_brand     : isom
        minor_version   : 512
        compatible_brands: isomiso2avc1mp41
        encoder         : Lavf54.29.104   Duration: 00:02:32.81, start: 0.000000, bitrate: 1166 kb/s
        Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 854x480 [ SAR 1:1 DAR 427:240], 1064 kb/s, 29.97 fps, 29.97 tbr, 90k
    tbn, 59.94 tbc
        Metadata:
          handler_name    : VideoHandler
        Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, s16, 93 kb /s
        Metadata:
          handler_name    : [mp4 muxer @ 04179D00] [Eval @ 0027DAB8] Undefined constant or missing '(' in 'f aststart'</p>
    
    <p>[mp4 muxer @ 04179D00] <strong>Unable to parse option value "faststart"</strong></p>
    
    <p>[mp4 muxer @ 04179D00] <strong>Error setting option movflags to value
    faststart.</strong></p>
    
    <p>Output #0, mp4, to 'output.mp4':   Metadata:
        major_brand     : isom
        minor_version   : 512
        compatible_brands: isomiso2avc1mp41
        encoder         : Lavf54.29.104
        Stream #0:0(und): Video: h264, yuv420p, 854x480 [SAR 1:1 DAR 427:240], q=2-3 1, 1064 kb/s, 29.97 fps, 90k tbn, 29.97 tbc
        Metadata:
          handler_name    : VideoHandler
        Stream #0:1(und): Audio: aac, 44100 Hz, mono, 93 kb/s
        Metadata:
          handler_name    : Stream mapping:   Stream #0:0 -> #0:0 (copy)   Stream #0:1 -> #0:1 (copy)</p>
    
    <p><strong>Could not write header for output file #0 (incorrect codec parameters ?)</strong></p>
  </blockquote>