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• Audio file could not be read as PCM WAV, AIFF/AIFF-C, or Native FLAC ; check if file is corrupted or in another format

  4 mai 2024, par 陳昱廷

  import os
import speech_recognition as sr

command = "ffmpeg -i videototext.mp4 videototext.mp3"
os.system(command)

commandwav = "ffmpeg -i videototext.mp3 videototext.wav"
os.system(commandwav)

AUDIO_FILE = "videototext.wav"

r = sr.Recognizer()
videototext = sr.AudioFile(AUDIO_FILE)

with videototext as source:
   audio = r.record(source, duration=100)

print(type(audio))
print(r.recognize_google(audio))


  


  ---

  


  above is my code,then the error is : Audio file could not be read as PCM WAV, AIFF/AIFF-C, or Native FLAC ; check if file is corrupted or in another format.

  


• Android ffmpeg unable to merge audio(.wav file) with video(.mp4 file)

  8 avril 2015, par navya

  i am working on FFMPEG library,in which i am merging audio (.wav file) with video (.mp4 file) , for that iam using following command here :

  *String commandStr=    "ffmpeg,-y,-i,mnt/sdcard/Scatta/Scattatemp.mp4,-i,/storage/emulated/0/MicDroid/recordings/video.wav ,-strict,experimental,-map,0:0,-map,1:0,-vcodec,mpeg4,-vb,15496k,-ab,128k,-ac,2,-ar,22050,-shortest,mnt/sdcard/Scatta/mergedFile.mp4";

  for that i am using following code,but my command is not working, i am getting Commandvalidation failed exception

  GeneralUtils.deleteFileUtil(workFolder + "/vk.log");
  
  
  
          PowerManager powerManager = (PowerManager)_act.getSystemService(Activity.POWER_SERVICE);
  
          WakeLock wakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "VK_LOCK"); 
  
          Log.d("Prefs.TAG", "Acquire wake lock");
  
          wakeLock.acquire();
  
  String commandStr=  "ffmpeg,-y,-i,mnt/sdcard/Scatta/Scattatemp.mp4,-i,/storage/emulated/0/MicDroid/recordings/video.wav ,-strict,experimental,-map,0:0,-map,1:0,-vcodec,mpeg4,-vb,15496k,-ab,128k,-ac,2,-ar,22050,-shortest,mnt/sdcard/Scatta/mergedFile.mp4"   ;
  
  
  
  LoadJNI vk = new LoadJNI();
  
          try {
  
  
  
              vk.run(GeneralUtils.utilConvertToComplex(commandStr), workFolder, getApplicationContext());
  
              GeneralUtils.copyFileToFolder(vkLogPath, demoVideoFolder);
  
  
  
          } catch (CommandValidationException e) {
  
              Log.e("Prefs.TAG", "vk run exeption.", e);
  
              commandValidationFailedFlag = true;
  
          } catch (Throwable e) {
  
              Log.e("Prefs.TAG", "vk run exeption.", e);
  
          }
  
          finally {
  
              if (wakeLock.isHeld())
  
                  wakeLock.release();
  
              else{
  
                  Log.i("Prefs.TAG", "Wake lock is already released, doing nothing");
  
              }
  
          }
  
          Log.i("Prefs.TAG", "doInBackground finished");
  
      }
  
      catch(Exception e){
  
          e.printStackTrace();
  
          System.out.println(".exception"+e.toString());
  
      }

  i am getting following exception

   04-08 10:00:38.891: D/ffmpeg4android(7781): deleteing: /data/data/org.scatta.androidclient/files//vk.log isdeleted: false
  
   04-08 10:00:38.891: D/Prefs.TAG(7781): Acquire wake lock
  
   04-08 10:00:38.896: I/System.out(7781): <--- command strffmpeg -i  mnt/sdcard/Scatta/Scattatemp.mp4 -i    /storage/emulated/0/MicDroid/recordings/video.wav -acodec copy mnt/sdcard/Scatta/mergedFile.mp4
  
   04-08 10:00:38.896: E/ffmpeg4android(7781): Command validation failed.
  
   04-08 10:00:38.896: E/ffmpeg4android(7781): Check if input file exists: /storage/emulated/0/MicDroid/recordings/video.wav
  
      04-08 10:00:38.896: E/Prefs.TAG(7781): vk run exeption.
  
    04-08 10:00:38.896: E/Prefs.TAG(7781): com.netcompss.ffmpeg4android.CommandValidationException
  
      04-08 10:00:38.896: E/Prefs.TAG(7781):  at com.netcompss.loader.LoadJNI.run(LoadJNI.java:26)
  
    04-08 10:00:38.896: E/Prefs.TAG(7781):    at com.scatta.androidclient.ui.PlaybackScreen$TranscdingBackground.doInBackground(PlaybackScreen.java:159)
  
     04-08 10:00:38.896: E/Prefs.TAG(7781):   at com.scatta.androidclient.ui.PlaybackScreen$TranscdingBackground.doInBackground(PlaybackScreen.java:1)
  
     04-08 10:00:38.896: E/Prefs.TAG(7781):   at android.os.AsyncTask$2.call(AsyncTask.java:287)
  
      04-08 10:00:38.896: E/Prefs.TAG(7781):  at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
  
      04-08 10:00:38.896: E/Prefs.TAG(7781):  at java.util.concurrent.FutureTask.run(FutureTask.java:137)
  
    04-08 10:00:38.896: E/Prefs.TAG(7781):    at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
  
     04-08 10:00:38.896: E/Prefs.TAG(7781):   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
  
    04-08 10:00:38.896: E/Prefs.TAG(7781):    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
  
   04-08 10:00:38.896: E/Prefs.TAG(7781):     at java.lang.Thread.run(Thread.java:856)

• Conversion of M4A file to MP3, MOV file to MP3

  17 novembre 2023, par Kishan

  Currently my solution is working fine with video formats(mp4, wmv) and audio format(aac). I have a requirement to convert M4A and MOV file format to mp3. I'm using FFMPeg and FFMPegCore do perform these operation.

  


  using FFMpegCore.Pipes;
using FFMpegCore;

await FFMpegArguments.FromUrlInput(new Uri(name))
.OutputToPipe(new StreamPipeSink(outputStream), options => 
options.ForceFormat("mp3").WithAudioCodec(FFMpegCore.Enums.AudioCodec.LibMp3Lame)).ProcessAsynchronously();


  


  Currently I'm getting empty file with no data.

  


  Expecting a valid mp3 file

  


  Note : Forgot to mention, conversion is working for all files if it is local path but not for Url and stream