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• android : Merge two audio files to one using FFMPEG

  27 mars 2019, par Asif Sb

  I have been stuck from the past two days, couldn’t able to figure out what went wrong.

  Log.d(TAG, "doInBackground: wee");
  
  String s = "-i ["+fileName+"] -i ["+fileName3+"] -filter_complex amerge -ac 2 -c:a libmp3lame -q:a 4 ["+finalAudio+"]";
  
  String[] cmd=s.split(" ");
  
  mergeMediaFiles(RecordActivity.this,cmd);

  And I am getting the following error.

  2019-03-27 11:38:03.525 12912-13042/com.encrypt.audiorecord E/FFmpeg: Exception while trying to run: [Ljava.lang.String;@4bfef23
  
      java.io.IOException: Cannot run program "/data/user/0/com.encrypt.audiorecord/files/ffmpeg": error=2, No such file or directory
  
          at java.lang.ProcessBuilder.start(ProcessBuilder.java:1050)
  
          at java.lang.Runtime.exec(Runtime.java:695)
  
          at java.lang.Runtime.exec(Runtime.java:560)
  
          at com.github.hiteshsondhi88.libffmpeg.ShellCommand.run(ShellCommand.java:10)
  
          at com.github.hiteshsondhi88.libffmpeg.FFmpegExecuteAsyncTask.doInBackground(FFmpegExecuteAsyncTask.java:38)
  
          at com.github.hiteshsondhi88.libffmpeg.FFmpegExecuteAsyncTask.doInBackground(FFmpegExecuteAsyncTask.java:10)
  
          at android.os.AsyncTask$2.call(AsyncTask.java:333)
  
          at java.util.concurrent.FutureTask.run(FutureTask.java:266)
  
          at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:245)
  
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
  
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
  
          at java.lang.Thread.run(Thread.java:764)
  
       Caused by: java.io.IOException: error=2, No such file or directory
  
          at java.lang.UNIXProcess.forkAndExec(Native Method)
  
          at java.lang.UNIXProcess.<init>(UNIXProcess.java:133)
  
          at java.lang.ProcessImpl.start(ProcessImpl.java:132)
  
          at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)
  
          at java.lang.Runtime.exec(Runtime.java:695) 
  
          at java.lang.Runtime.exec(Runtime.java:560) 
  
          at com.github.hiteshsondhi88.libffmpeg.ShellCommand.run(ShellCommand.java:10) 
  
          at com.github.hiteshsondhi88.libffmpeg.FFmpegExecuteAsyncTask.doInBackground(FFmpegExecuteAsyncTask.java:38) 
  
          at com.github.hiteshsondhi88.libffmpeg.FFmpegExecuteAsyncTask.doInBackground(FFmpegExecuteAsyncTask.java:10) 
  
          at android.os.AsyncTask$2.call(AsyncTask.java:333) 
  
          at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
  
          at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:245) 
  
          at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) 
  
          at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) 
  
          at java.lang.Thread.run(Thread.java:764) 
  
  </init>

  And I followed this link to integrate FFMPEG to the android app.

  Below is my mergeMediaFiles() method :

  public void mergeMediaFiles(Context context,String[] cmd) {
  
          FFmpeg ffmpeg = FFmpeg.getInstance(context);
  
          try {
  
              // to execute "ffmpeg -version" command you just need to pass "-version"
  
              ffmpeg.execute(cmd, new ExecuteBinaryResponseHandler() {
  
  
  
                  @Override
  
                  public void onStart() {
  
                  }
  
  
  
                  @Override
  
                  public void onProgress(String message) {
  
                  }
  
  
  
                  @Override
  
                  public void onFailure(String message) {
  
                  }
  
  
  
                  @Override
  
                  public void onSuccess(String message) {
  
                  }
  
  
  
                  @Override
  
                  public void onFinish() {
  
                  }
  
              });
  
          } catch (FFmpegCommandAlreadyRunningException e) {
  
              //
  
          }
  
      }

  And the path of all my files are from cacheDir

  fileName = getExternalCacheDir().getAbsolutePath();
  
          fileName += "/audiorecordtest.wav";

• I have a problem withInvalid file index 1 in filtergraph description

  17 avril 2019, par Davide

  This is my code :

  ffmpeg -i wireframe-spendo.mov palette.png -filter_complex fps=25,scale=800:600:flags=lanczos[x],[x][1:v]paletteuse wireframe-spendo.gif

  but after then :

  ffmpeg -i wireframe-spendo.mov palette.png -filter_complex fps=25,scale=800:600:flags=lanczos[x],[x][1:v]paletteuse wireframe-spendo.gif
  
  ffmpeg version 4.1.3 Copyright (c) 2000-2019 the FFmpeg developers
  
    built with Apple LLVM version 10.0.0 (clang-1000.11.45.5)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/4.1.3 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags='-I/Library/Java/JavaVirtualMachines/openjdk-12.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/openjdk-12.jdk/Contents/Home/include/darwin' --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-videotoolbox --disable-libjack --disable-indev=jack --enable-libaom --enable-libsoxr
  
    libavutil      56. 22.100 / 56. 22.100
  
    libavcodec     58. 35.100 / 58. 35.100
  
    libavformat    58. 20.100 / 58. 20.100
  
    libavdevice    58.  5.100 / 58.  5.100
  
    libavfilter     7. 40.101 /  7. 40.101
  
    libavresample   4.  0.  0 /  4.  0.  0
  
    libswscale      5.  3.100 /  5.  3.100
  
    libswresample   3.  3.100 /  3.  3.100
  
    libpostproc    55.  3.100 / 55.  3.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'wireframe-spendo.mov':
  
    Metadata:
  
      major_brand     : qt  
  
      minor_version   : 0
  
      compatible_brands: qt  
  
      creation_time   : 2019-04-17T09:38:24.000000Z
  
      com.apple.quicktime.make: Apple
  
      com.apple.quicktime.model: iMac12,2
  
      com.apple.quicktime.software: Mac OS X 10.13.6 (17G6029)
  
      com.apple.quicktime.creationdate: 2019-04-17T11:37:00+0200
  
    Duration: 00:00:16.42, start: 0.000000, bitrate: 3170 kb/s
  
      Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1476x1074 [SAR 1:1 DAR 246:179], 3163 kb/s, 60 fps, 60 tbr, 6k tbn, 12k tbc (default)
  
      Metadata:
  
        creation_time   : 2019-04-17T09:38:24.000000Z
  
        handler_name    : Core Media Video
  
        encoder         : H.264

  output terminal says :

  Invalid file index 1 in filtergraph description fps=25,scale=800:600:flags=lanczos[x],[x][1:v]paletteuse.

• How to fix "Unable to find a suitable output format for '/'" error in ffmpeg running with PHP [on hold]

  4 avril 2019, par C.Pietro

  I want to compress video on the server after the upload.
  I installed correctly ffmpeg and when i run from the command line

   ffmpeg -i input.mp4 -vcodec libx265 -crf 28 -vcodec h264 -acodec aac -strict -2 output.mp4

  it works !

  But if i run the same command from PHP with exec,

  class VideoCompress {
  
      function compress($path, $name){
  
          if (`which ffmpeg`) {
  
              exec("cd \"$path\";ffmpeg -i \"$name\" -vcodec libx265 -crf 28 -vcodec h264 -acodec aac -strict -2 \"bk_$name\" / 2>&1", $o);
  
              print_r8($o);
  
          }
  
      }
  
  }

  it fails and return this error

  Array
  
  (
  
      [0] => ffmpeg version N-48518-g27c94c57dc-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2019 the FFmpeg developers
  
      [1] =>   built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
  
      [2] =>   configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg
  
      [3] =>   libavutil      56. 26.100 / 56. 26.100
  
      [4] =>   libavcodec     58. 48.100 / 58. 48.100
  
      [5] =>   libavformat    58. 26.101 / 58. 26.101
  
      [6] =>   libavdevice    58.  7.100 / 58.  7.100
  
      [7] =>   libavfilter     7. 48.100 /  7. 48.100
  
      [8] =>   libswscale      5.  4.100 /  5.  4.100
  
      [9] =>   libswresample   3.  4.100 /  3.  4.100
  
      [10] =>   libpostproc    55.  4.100 / 55.  4.100
  
      [11] => Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'WebHD_720p.mp4':
  
      [12] =>   Metadata:
  
      [13] =>     major_brand     : isom
  
      [14] =>     minor_version   : 512
  
      [15] =>     compatible_brands: isomiso2avc1mp41
  
      [16] =>     encoder         : Lavf57.71.100
  
      [17] =>   Duration: 00:03:23.22, start: 0.000000, bitrate: 1890 kb/s
  
      [18] =>     Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 9:10 DAR 8:5], 1754 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
  
      [19] =>     Metadata:
  
      [20] =>       handler_name    : VideoHandler
  
      [21] =>     Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
  
      [22] =>     Metadata:
  
      [23] =>       handler_name    : SoundHandler
  
      [24] => [NULL @ 0x59fb100] Unable to find a suitable output format for '/'
  
      [25] => /: Invalid argument
  
  )

  Any idea on how can i fix it ?