title: convert MOV to mp4 using transcode
body: <p>I want to convert a MOV from my Casio cam to mp4 using transcode. Why transcode? Because I also want to deshake the video in the same step.</p>
  
  <p>When I use </p>
  
  <p><code>ffmpeg -i in.MOV out.mp4</code></p>
  
  <p>it works. When using </p>
  
  <p><code>transcode -J stabilize -i in.MOV</code></p>
  
  <p>or </p>
  
  <p><code>transcode -J transform -i in.MOV -y ffmpeg -F mpeg4 -o out.mp4</code></p>
  
  <p>I get hundreds of these errors:</p>
  
  <pre><code>[ffmpeg_audio] Error: avcodec_open2 failed
  [adpcm_ima_wav @ 0x1f7f180] Only 4-bit ADPCM IMA WAV files are supported
  </code></pre>
  
  <p>This looks to me as if transcode uses ffmpeg internally.</p>
  
  <p>I could use ffmpeg to make it mp4 first and then use transcode to stabilize the video, but then it would be re-encoded twice which I would like to avoid.</p>
  
  <p>This is what mplayer says about my MOV file:</p>
  
  <pre><code>MPlayer2 2.0-701-gd4c5b7f-2ubuntu2 (C) 2000-2012 MPlayer Team
  Cannot open file '/home/koem/.mplayer/input.conf': No such file or directory
  Failed to open /home/koem/.mplayer/input.conf.
  Cannot open file '/etc/mplayer/input.conf': No such file or directory
  Failed to open /etc/mplayer/input.conf.
  
  Playing 1-original.MOV.
  Detected file format: QuickTime / MOV (libavformat)
  [lavf] stream 0: video (h264), -vid 0
  [lavf] stream 1: audio (adpcm_ima_wav), -aid 0, -alang eng
  Clip info:
   major_brand: qt  
   minor_version: 537921536
   compatible_brands: qt  caqv
   creation_time: 2017-01-02 23:31:38
  Load subtitles in .
  Failed to open VDPAU backend libvdpau_i965.so: cannot open shared object file: No such file or directory
  [vdpau] Error when calling vdp_device_create_x11: 1
  [ass] auto-open
  Selected video codec: H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 [libavcodec]
  Selected audio codec: ADPCM IMA WAV [libavcodec]
  AUDIO: 44100 Hz, 2 ch, s16le, 352.8 kbit/25.00% (ratio: 44100-&gt;176400)
  AO: [pulse] 44100Hz 2ch s16le (2 bytes per sample)
  Starting playback...
  VIDEO:  1920x1080  29.970 fps  15940.0 kbps (1992.5 kB/s)
  VO: [xv] 1920x1080 =&gt; 1920x1080 Planar YV12 
  Colorspace details not fully supported by selected vo.
  A:   1.1 V:   1.1 A-V: -0.000 ct:  0.000   0/  0 16%  8%  1.6% 0 0 
  
  Exiting... (Quit)
  </code></pre>
  
  <p>How can I make it work with transcode without using ffmpeg first?</p>