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• couldn't find "liblicense-jni.so lib using Android Studio

  15 novembre 2016, par Virani Ashish

  i have crated gif maker app using ffmpeg lib

  but zenfone 5 (asus t00j) not couldn’t find "liblicense-jni.so in app lib folder and other devicecan load lib perfect.

  if any one can idea to solve this error ?

  11-15 10:15:28.947 15471-15471/com.aspiration.gifmaker E/AndroidRuntime: FATAL EXCEPTION: main
  
       Process: com.aspiration.gifmaker, PID: 15471
  
       java.lang.UnsatisfiedLinkError: dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/com.aspiration.gifmaker-1/base.apk"],nativeLibraryDirectories=[/data/app/com.aspiration.gifmaker-1/lib/x86, /vendor/lib, /system/lib]]] couldn't find "liblicense-jni.so"
  
           at java.lang.Runtime.loadLibrary(Runtime.java:366)
  
           at java.lang.System.loadLibrary(System.java:989)
  
           at com.netcompss.ffmpeg4android.LicenseCheckJNI.<clinit>(LicenseCheckJNI.java:42)
  
           at com.netcompss.ffmpeg4android.GeneralUtils.isLicenseValid(GeneralUtils.java:509)
  
           at com.aspiration.gifmaker.activity.VideoSpeedActivity.onCreate(VideoSpeedActivity.java:210)
  
           at android.app.Activity.performCreate(Activity.java:5975)
  
           at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)
  
           at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2269)
  
           at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2376)
  
           at android.app.ActivityThread.access$800(ActivityThread.java:147)
  
           at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1281)
  
           at android.os.Handler.dispatchMessage(Handler.java:102)
  
           at android.os.Looper.loop(Looper.java:135)
  
           at android.app.ActivityThread.main(ActivityThread.java:5253)
  
           at java.lang.reflect.Method.invoke(Native Method)
  
           at java.lang.reflect.Method.invoke(Method.java:372)
  
           at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
  
           at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
  
  </clinit>

• ffmpeg - find segments without audio

  21 juillet 2018, par OK200

  How to can find segments where the audio is not present using ffmpeg or sox or any other tool.

  when the video is played using player i’m getting decode error, so i need to analyse the source file. Please refer https://github.com/videojs/mux.js/issues/194

  ---

  Navigate to https://v2-4-0-dot-shaka-player-demo.appspot.com/demo/#asset=https://s3-ap-southeast-1.amazonaws.com/learnyst/testfolder/sample/expresshls/hls.m3u8 ;play and start playback.

  For the first 2 segments (https://s3-ap-southeast-1.amazonaws.com/learnyst/testfolder/sample/expresshls/zh3il5009f-yxhbaADHqLeCAo3k.ts and https://s3-ap-southeast-1.amazonaws.com/learnyst/testfolder/sample/expresshls/ZtV37gCCgR5cnwUrQliZEPG9zIU.ts) the callbacks get invoked, but not for the third one (https://s3-ap-southeast-1.amazonaws.com/learnyst/testfolder/sample/expresshls/X3cf3WEJqIG6EfX0Yjq8dvGthAc.ts) although they are present in the transmuxer’s internal listeners collection.

  The code that registers the callbacks :

    this.muxTransmuxer_ = new muxjs.mp4.Transmuxer({
  
      'keepOriginalTimestamps': true
  
    });
  
  
  
    this.muxTransmuxer_.on('data', this.onTransmuxed_.bind(this));
  
    this.muxTransmuxer_.on('done', this.onTransmuxDone_.bind(this));

  It looks like the 3rd segment does not contain any audio data, but the PMT says there is an audio track. Because of this code here https://github.com/videojs/mux.js/blob/master/lib/mp4/transmuxer.js#L1110 the transmuxer is waiting for audio data that is never coming.

  I need to find all the audio segments has data, is it possible to get the stats using ffmpeg or sox

• How can I get Python to find ffprobe ?

  4 novembre 2018, par tburrows13

  I have ffmpeg and ffprobe installed on my mac (macOS Sierra), and I have added their path to PATH. I can run them from terminal.

  I am trying to use ffprobe to get the width and height of a video file using the following code :

  import subprocess
  
  import shlex
  
  import json
  
  
  
  
  
  # function to find the resolution of the input video file
  
  def findVideoResolution(pathToInputVideo):
  
      cmd = "ffprobe -v quiet -print_format json -show_streams"
  
      args = shlex.split(cmd)
  
      args.append(pathToInputVideo)
  
      # run the ffprobe process, decode stdout into utf-8 & convert to JSON
  
      ffprobeOutput = subprocess.check_output(args).decode('utf-8')
  
      ffprobeOutput = json.loads(ffprobeOutput)
  
  
  
      # find height and width
  
      height = ffprobeOutput['streams'][0]['height']
  
      width = ffprobeOutput['streams'][0]['width']
  
  
  
      return height, width
  
  
  
  h, w = findVideoResolution("/Users/tomburrows/Documents/qfpics/user1/order1/movie.mov")
  
  print(h, w)

  I am sorry I cannot provide a MCVE, as I didn’t write this code, and I don’t really know how it works.

  It gives the following error :

  Traceback (most recent call last):
  
    File "/Users/tomburrows/Dropbox/Moviepy Tests/get_dimensions.py", line 21, in <module>
  
      h, w = findVideoResolution("/Users/tomburrows/Documents/qfpics/user1/order1/movie.mov")
  
    File "/Users/tomburrows/Dropbox/Moviepy Tests/get_dimensions.py", line 12, in findVideoResolution
  
      ffprobeOutput = subprocess.check_output(args).decode('utf-8')
  
    File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/subprocess.py", line 626, in check_output
  
      **kwargs).stdout
  
    File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/subprocess.py", line 693, in run
  
      with Popen(*popenargs, **kwargs) as process:
  
    File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/subprocess.py", line 947, in __init__
  
      restore_signals, start_new_session)
  
    File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/subprocess.py", line 1551, in _execute_child
  
      raise child_exception_type(errno_num, err_msg)
  
  FileNotFoundError: [Errno 2] No such file or directory: 'ffprobe'
  
  </module>

  If python is not reading from the PATH file, how can I specify where ffprobe is ?

  Edit :
  It appears the python path is not aligned with my shell path.
  Using os.environ["PATH"]+=":/the_path/of/ffprobe/dir" at the beginning of each program allows me to use ffprobe, but why might my python path not be the same as my shell path ?