title: failed to converted raw H264 to mp4 wiht FFMPEG and playback it
body: <p>I am trying to convert raw video file captured from Cisco EX60 to valid MP4 file.
  I use the following command
  <strong>ffmpeg -f rawvideo -pix_fmt yuv420p -s:v 1920x1080 -r 25 -i input2 -vcodec libx264 output2.mp4</strong></p>
  
  <p>and get</p>
  
  <pre><code>libpostproc    54.  0.100 / 54.  0.100
  [rawvideo @ 0000000000703920] Estimating duration from bitrate, this may be inac
  curate
  Input #0, rawvideo, from 'input2':
    Duration: 00:00:00.20, start: 0.000000, bitrate: 630883 kb/s
      Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 1920x1080, 622080
   kb/s, 25 tbr, 25 tbn, 25 tbc
  
  File 'output2.mp4' already exists. Overwrite ? [y/N] y
  [libx264 @ 00000000007115e0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
  AVX FMA3 AVX2 LZCNT BMI2
  [libx264 @ 00000000007115e0] profile High, level 4.0
  [libx264 @ 00000000007115e0] 264 - core 148 r2638 7599210 - H.264/MPEG-4 AVC cod
  ec - Copyleft 2003-2015 - http://www.videolan.org/x264.html - options: cabac=1 r
  ef=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_pski
  p=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 deci
  mate=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=2
  5 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.6
  0 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  Output #0, mp4, to 'output2.mp4':
    Metadata:
      encoder         : Lavf57.18.100
      Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1920x1
  080, q=-1--1, 25 fps, 12800 tbn, 25 tbc
      Metadata:
        encoder         : Lavc57.15.100 libx264
  Stream mapping:
    Stream #0:0 -&gt; #0:0 (rawvideo (native) -&gt; h264 (libx264))
  Press [q] to stop, [?] for help
  [rawvideo @ 00000000007101c0] ****Invalid buffer size, packet size 220075 &lt; expected
   frame_size 3110400
  Error while decoding stream #0:0: Invalid argument****
  frame=    5 fps=2.5 q=-1.0 Lsize=    6514kB time=00:00:00.12 bitrate=444706.9kbi
  ts/s
  video:6513kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing
  overhead: 0.013209%
  [libx264 @ 00000000007115e0] frame I:1     Avg QP:35.99  size:1334571
  [libx264 @ 00000000007115e0] frame P:4     Avg QP:35.00  size:1333616
  [libx264 @ 00000000007115e0] mb I  I16..4:  0.0%  0.0% 100.0%
  [libx264 @ 00000000007115e0] mb P  I16..4: 98.7%  0.0%  1.3%  P16..4:  0.0%  0.0
  %  0.0%  0.0%  0.0%    skip: 0.0%
  </code></pre>
  
  <p>with </p>
  
  <pre><code>Invalid buffer size, packet size 220075 &lt; expected
       frame_size 3110400
      Error while decoding stream #0:0: Invalid argument**
  </code></pre>
  
  <p>inside</p>
  
  <p>When I use just 
  <strong>ffmpeg -f h264 -i input -vcodec copy -r 25 outfile.mp4</strong>
  It replace initial IFrame with B-frames so I cannot playback it. I can view it with VCL, but not with Windows Media player, for example.
  What is wrong with the command?
  Thanks
  Efim</p>