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• Bad argument for fluent-ffmpeg video compression at ChildProcess.spawn()

  22 novembre 2018, par Just A Bad Programmer

  I am using fluent-ffmpeg library in node.js in Firebase for compressing videos uploaded by users through an android app, but the following code yield an error :

  ffmpeg(tempFilePath).videoBitrate('1000k', true)
  
                        .on('error', function(err) {
  
                          console.log('An error occurred: ' + err.message);
  
                        })
  
                        .on('end', function() {
  
                          console.log('Processing finished !');
  
                        })
  
                        .save(compressedVideoFilePath);

  The error is :

  TypeError: Bad argument
  
  at TypeError (native)
  
  at ChildProcess.spawn (internal/child_process.js:303:26)
  
  at exports.spawn (child_process.js:370:9)
  
  at /user_code/node_modules/fluent-ffmpeg/lib/processor.js:152:24
  
  at FfmpegCommand.proto._getFfmpegPath (/user_code/node_modules/fluent-ffmpeg/lib/capabilities.js:90:14)
  
  at FfmpegCommand.proto._spawnFfmpeg (/user_code/node_modules/fluent-ffmpeg/lib/processor.js:132:10)
  
  at FfmpegCommand.proto.availableFormats.proto.getAvailableFormats (/user_code/node_modules/fluent-ffmpeg/lib/capabilities.js:517:10)
  
  at /user_code/node_modules/fluent-ffmpeg/lib/capabilities.js:568:14
  
  at nextTask (/user_code/node_modules/fluent-ffmpeg/node_modules/async/dist/async.js:5324:14)
  
  at Object.waterfall (/user_code/node_modules/fluent-ffmpeg/node_modules/async/dist/async.js:5334:5)

  The tempFilePath is from downloading the user uploaded file onto the temp folder of firebase (/tmp/test-4d68b02f-a6ef-4ff3-a5c9-52687fd3f0c4.mp4) :

  const tempFilePath = path.join(os.tmpdir(), filePath);
  
  destBucket.file(filePath).download({
  
            destination: tempFilePath // Download the file to destFilePath
  
          }

  While the compressedVideoFilePath is the destination I want the compressed file to be saved (/tmp/compressed-test-4d68b02f-a6ef-4ff3-a5c9-52687fd3f0c4.mp4) :

  var compressedVideoFilePath = path.join(path.dirname(tempFilePath),"compressed-" + path.basename(tempFilePath));

  After the compressed file is saved, I would upload the file to firebase storage with (But probably this is not the place that caused the error) :

  destBucket.upload(compressedVideoFilePath, {
  
      destination: 'compressed-' + path.basename(filePath),
  
      metadata: metadata
  
    })

  I don’t know how to fix it, any one knows why this keeps happening ? Thanks. :)

• How to reduce conversion/compression time in FFmpeg and How to merge command ?

  21 novembre 2018, par Patel Pinkal

  I want to reduce time taken to create new video after adding text in original video using FFmpeg
  I had tried to search and I found this code given below for reducing time.

   -y -i /sdcard/videokit/in.mp4 -strict experimental -vcodec libx264 -preset ultrafast -crf 24 -acodec aac -ar 44100 -ac 2 -b 36000k -s 1280x720 -aspect 16:9 -metadata:s:v:0 rotate=0 /sdcard/videokit/out3.mp4

  Now, I want to add text in video and it is done in FFmpeg, by this command and its 100% working.

    String[] addTextCommand = {
  
              "-i",
  
              "" + realFilePath,
  
              "-vf",
  
              "drawtext=fontsize=50:fontfile=/storage/emulated/0/Download/Cerbetica-regular.ttf:fontcolor=red:text='"
  
                      + strText +
  
                      "':x=0:y=0: box=1: boxcolor=black@0.5:boxborderw=10: x=0: y=(h-text_h)/2",
  
              "-strict",
  
              "-2",
  
              outputFilePath};

  Now my problem is how do I merge this two code and make one single command to make an edited video and also take less time to create a new video. In this, I have tried this command but it’s not working.

     String[] addTextCommand = {
  
              "-i",
  
              "" + realVideoPath,
  
              "-vf",
  
              "-c:v", "libx264",
  
              "-preset", "ultrafast",
  
              "-crf", "24",
  
              "-acodec", "aac",
  
              "-ar", "44100",
  
              "-ac", "2",
  
              "-b", "36000k",
  
              "-s", "1280x720",
  
              "-aspect", "16:9",
  
              "-metadata:s:v:0 rotate=0",
  
              "drawtext=fontsize=50:fontfile=/storage/emulated/0/Download/Cerbetica-regular.ttf:fontcolor=red:text='"
  
                      + strText +
  
                      "':x=0:y=0: box=1: boxcolor=black@0.5:boxborderw=10: x=0: y=(h-text_h)/2",
  
              "-strict",
  
              "-2",
  
              outputFilePath};

  If anyone has an idea how to make command of FFmpeg please describe it and explain how to use it.

  Using command of @Mulvya I got this in the console.

       D/MainActivity: FAILED with output : WARNING: linker: /data/user/0/com.inheritx.videoprocessing/files/ffmpeg has text relocations. This is wasting memory and prevents security hardening. Please fix.
  
                     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/i686-linux-android- --arch=x86 --cpu=i686 --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/x86 --extra-cflags='-I/home/vagrant/SourceCode/ffmpeg-android/toolchain-android/include -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all -march=i686' --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
  
                     Unrecognized option '2'.
  
                     Error splitting the argument list: Option not found
  
     D/MainActivity: Finished command : ffmpeg -i
  
     D/MainActivity: Finished command : ffmpeg /storage/emulated/0/Download/spacetestSMALL_512kb.mp4
  
     D/MainActivity: Finished command : ffmpeg -vf
  
     D/MainActivity: Finished command : ffmpeg drawtext=fontsize=50:fontfile=/system/fonts/DroidSans.ttf:fontcolor=red:text='Hello':x=0:y=0: box=1: boxcolor=black@0.5:boxborderw=10: x=0: y=(h-text_h)/2
  
     D/MainActivity: Finished command : ffmpeg -c:v
  
     D/MainActivity: Finished command : ffmpeg libx264
  
     D/MainActivity: Finished command : ffmpeg -preset
  
     D/MainActivity: Finished command : ffmpeg ultrafast
  
     D/MainActivity: Finished command : ffmpeg -crf
  
     D/MainActivity: Finished command : ffmpeg 24
  
     D/MainActivity: Finished command : ffmpeg -acodec
  
     D/MainActivity: Finished command : ffmpeg aac
  
     D/MainActivity: Finished command : ffmpeg -ar
  
     D/MainActivity: Finished command : ffmpeg 44100
  
     D/MainActivity: Finished command : ffmpeg -s
  
     D/MainActivity: Finished command : ffmpeg 1280x720
  
     D/MainActivity: Finished command : ffmpeg -aspect
  
     D/MainActivity: Finished command : ffmpeg 16:9
  
     D/MainActivity: Finished command : ffmpeg -metadata:s:v:0 rotate=0
  
     D/MainActivity: Finished command : ffmpeg -strict
  
     D/MainActivity: Finished command : ffmpeg -2
  
     D/MainActivity: Finished command : ffmpeg /storage/emulated/0/Movies/add_text25.mp4

• Suppress compression failure message if it is not an error

  1er février 2019, par Karthik Periagaram

  Suppress compression failure message if it is not an error
  If the user specifies `—no-error-on-compression-fail`, there is no need
  
  to treat compression failure as an error. Hence, the failure message
  
  should be suppressed along with the non-zero exit code (which already
  
  is suppressed).
  

  • [DH] src/flac/encode.c