title: Android ffmpeg fails on second run
body: <p>I have a problem with <a href="https://github.com/WritingMinds/ffmpeg-android-java" rel="nofollow noreferrer">https://github.com/WritingMinds/ffmpeg-android-java</a>. It's Java wrapper lib for ffmpeg on Android and is was working pretty good. But is seems that you can not run two video encodings in a row. Actually it will encode video only once in a lifetime. Every next time you try to encode a video it will freeze. This is the output that I get when it freeze:</p>
  
  <pre><code>Build.CPU_ABI : arm64-v8a
  Loading FFmpeg for armv7 CPU
  Running publishing updates method
  ffmpeg version n3.0.1 Copyright (c) 2000-2016 the FFmpeg developers
    built with gcc 4.8 (GCC)
    configuration: --target-os=linux --cross-prefix=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/bin/arm-linux-androideabi- --arch=arm --cpu=cortex-a8 --enable-runtime-cpudetect --sysroot=/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/sysroot --enable-pic --enable-libx264 --enable-libass --enable-libfreetype --enable-libfribidi --enable-libmp3lame --enable-fontconfig --enable-pthreads --disable-debug --disable-ffserver --enable-version3 --enable-hardcoded-tables --disable-ffplay --disable-ffprobe --enable-gpl --enable-yasm --disable-doc --disable-shared --enable-static --pkg-config=/home/vagrant/SourceCode/ffmpeg-android/ffmpeg-pkg-config --prefix=/home/vagrant/SourceCode/ffmpeg-android/build/armeabi-v7a --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all' --extra-ldflags='-L/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/lib -Wl,-z,relro -Wl,-z,now -pie' --extra-libs='-lpng -lexpat -lm' --extra-cxxflags=
    libavutil      55. 17.103 / 55. 17.103
    libavcodec     57. 24.102 / 57. 24.102
    libavformat    57. 25.100 / 57. 25.100
    libavdevice    57.  0.101 / 57.  0.101
    libavfilter     6. 31.100 /  6. 31.100
    libswscale      4.  0.100 /  4.  0.100
    libswresample   2.  0.101 /  2.  0.101
    libpostproc    54.  0.100 / 54.  0.100
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/WhatsApp/Media/WhatsApp Video/VID-20160731-WA0005.mp4':
    Metadata:
      major_brand     : mp42
      minor_version   : 1
      compatible_brands: mp41mp42isom
      creation_time   : 2016-07-31 17:24:29
    Duration: 00:00:13.63, start: 0.000000, bitrate: 1641 kb/s
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 544x960, 1573 kb/s, 30 fps, 30 tbr, 600 tbn, 1200 tbc (default)
      Metadata:
        creation_time   : 2016-07-31 17:24:29
        handler_name    : Core Media Video
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 62 kb/s (default)
      Metadata:
        creation_time   : 2016-07-31 17:24:29
        handler_name    : Core Media Audio
  </code></pre>
  
  <p>I'm not sure what is going on. It seems like ffmpeg leaves something after the first encoding that locks it for any future encoding. And it will work only if i uninstall and then reinstall application. </p>
  
  <ul>
  <li>If you kill an app from background this issue remains.</li>
  <li>If you kill it and restart the device issue remains.</li>
  <li>If you use force quit in the settings the issue remains.</li>
  </ul>
  
  <p>Only reinstall enables me to encode new video once. After that nothing works.</p>