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• ARSS returns error "This WAVE file format is not currently supported"

  22 juin 2019, par itisyeetimetoday

  I have tried to import a wav file into ARSS : http://arss.sourceforge.net/index.shtml

  I get the above error.

  Files :
  https://drive.google.com/open?id=1X24eUOzOGa5uBUHFTtrSmzptIQTz-93l

  I have tried the following commands with FFmpeg to create a "clean" wav, however, they have all failed.

  ffmpeg -i "file.wav" -f wav -bitexact -acodec pcm_s16le -ar 22050 -ac 1 "ffmpeg.wav"
  
  
  
  ffmpeg -i file.wav -c copy -fflags +bitexact new.wav

  Ffmpeg appears to convert successfully, but it still returns the same error message in ARSS.

• ffmpeg - Hyperthreading causes "Conversion failed" with multiple parallel instances

  6 février 2019, par MeanStreet

  I’m trying to extract images from multiple videos in parallel, using ffmpeg.
  Here’s my bash script :

  for video in *.MOV; do
  
      base=`basename "$video" .MOV`
  
      ffmpeg -i "$video" -r 0.02 "$base"/out_%02d.png > logs/"$base" 2>&1 &
  
  done

  When running this (on 60 videos), I check the logs/ files and 40 of them have crashed at the beginning with the following error :

  Error initializing output stream 0:0 — Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height

  Conversion failed !

  However it works fine with a smaller amount of videos (around 5, even on videos that didn’t work before).

  EDIT : I tried to disable hyperthreading and it works fine now. Why is hyperthreading causing ffmpeg to fail ?

• Integrating FFMPEG using cmake : dlopen failed : library "libavutil.so.56" not found

  26 novembre 2018, par Hamed Momeni

  This question is a subsequent thread following this other question of mine.

  After finally managing to successfully building the apk file using gradle and cmake to integrate FFMPEG into an Android project I am facing a new exception which is thrown when calling System.loadLibrary.

  java.lang.UnsatisfiedLinkError: dlopen failed: library "libavutil.so.56" not found
  
          at java.lang.Runtime.loadLibrary0(Runtime.java:1016)
  
          at java.lang.System.loadLibrary(System.java:1657)
  
          at com.hmomeni.canto.activities.EditActivity.<init>(EditActivity.kt:26)
  
          at java.lang.Class.newInstance(Native Method)
  
          at android.app.Instrumentation.newActivity(Instrumentation.java:1174)
  
          at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2669)
  
          at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856)
  
          at android.app.ActivityThread.-wrap11(Unknown Source:0)
  
          at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589)
  
          at android.os.Handler.dispatchMessage(Handler.java:106)
  
          at android.os.Looper.loop(Looper.java:164)
  
          at android.app.ActivityThread.main(ActivityThread.java:6494)
  
          at java.lang.reflect.Method.invoke(Native Method)
  
          at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
  
          at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
  
  </init>

  This is the part of code which is causing the error :

  class EditActivity : AppCompatActivity(), View.OnClickListener {
  
  
  
      init {
  
          System.loadLibrary("Canto")
  
      }
  
  ...
  
  }

  I tried moving the .so files inside the PROJECT/app/jniLibs and then adding the following line to build.gradle file to no avail.

  sourceSets.main.jniLibs.srcDirs = ['./jniLibs/']