title: ffmpeg gives an error Option movflags not found
body: <p>In Ubuntu 12.04 LTS I have used <code>-movflags frag_keyframe+empty_moov</code> in my ffmpeg command:</p>
  
  <pre><code>ffmpeg -i http://filesbe.vocativ.internal.net/03/44/SN/q1/xg/xl/0344SNq1xgxl.flv \
  -crf 32.0 -g 250 -keyint_min 25 -aspect 4:3  -movflags frag_keyframe -vcodec \
  libx264 -acodec aac -strict experimental -ar 44100 -ac 2 -b:a 128k -map 0:0 \
  -map 0:1 -f flv -y test.flv
  
  ffmpeg version 0.8.6-4:0.8.6-0ubuntu0.12.04.1, Copyright (c) 2000-2013 the Libav developers
    built on Apr  2 2013 17:02:36 with gcc 4.6.3
  *** THIS PROGRAM IS DEPRECATED ***
  This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
  [flv @ 0x10569a0] Estimating duration from bitrate, this may be inaccurate
  Input #0, flv, from 'http://filesbe.vocativ.internal.net/03/44/SN/q1/xg/xl/0344SNq1xgxl.flv':
    Metadata:
      starttime       : 0
      totalduration   : 64
      totaldatarate   : 710
      bytelength      : 5674798
      canseekontime   : true
      sourcedata      : BADC23401MH1326550770698632
      purl            :
      pmsg            :
    Duration: 00:01:03.96, start: 0.000000, bitrate: 718 kb/s
      Stream #0.0: Video: h264 (Main), yuv420p, 854x480, 590 kb/s, 25 tbr, 1k tbn, 50 tbc
      Stream #0.1: Audio: aac, 44100 Hz, stereo, s16, 128 kb/s
  [buffer @ 0x105c600] w:854 h:480 pixfmt:yuv420p
  [movie @ 0x105c440] seek_point:0 format_name:(null) file_name:/home/assetproxy/htdocs/transcoder/helper_asset/voca_scaled.png stream_index:0
  [overlay @ 0x1060840] auto-inserting filter 'auto-inserted scaler 0' between the filter 'Parsed filter 0 movie' and the filter 'Parsed filter 1 overlay'
  [scale @ 0x11d8300] w:90 h:51 fmt:rgb24 -&gt; w:90 h:51 fmt:yuva420p flags:0x4
  [overlay @ 0x1060840] main w:854 h:480 fmt:yuv420p overlay x:754 y:419 w:90 h:51 fmt:yuva420p
  [overlay @ 0x1060840] main_tb:1/1000000 overlay_tb:1/25 -&gt; tb:1/1000000 exact:1
  [libx264 @ 0x1059d20] using SAR=191/255
  [libx264 @ 0x1059d20] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
  [libx264 @ 0x1059d20] profile Main, level 3.0
  [libx264 @ 0x1059d20] 264 - core 120 r2151 a3f4407 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=6 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=0 b_adapt=1 b_bias=0 direct=1 weightb=0 open_gop=1 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=32.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.41 aq=1:1.00
  Option movflags not found.
  </code></pre>