Recherche avancée

Sur d’autres sites (8285)

• Android Audio Mixing FMPEG, Mediarecorder file only merging to left channel, delayed

  12 avril 2016, par Jeremy

  working on an app that takes two sounds, and merges them together. I currently have two problems with it I cannot seem to figure out so would appreciate another set of eyes.

  1. File from MediaRecorder (voice file) merges into Left Channel Only. (I can only hear voice in left ear)

  2. The two files seem like there is a slight delay in the position as they are not aligned perfectly with the merge. Here is the method I have written.

     private void mixAudio(File mVoiceFile, File mBeatFile, File mRapFile){
     
         String files = "-i " + mVoiceFile.getAbsolutePath() + " -i " + mBeatFile.getAbsolutePath();
     
         String filter = " -filter_complex [0:a]volume=1.5[a1];[1:a]volume=0.6[a2];[a1][a2]amerge=inputs=2,volume=1.3,pan=stereo|c0code>

     }
     `

  and here is how I setup my MediaRecorder

  public void setRecorderSource(){
  
          mRapRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
  
          mRapRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
  
          mRapRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
  
          mRapRecorder.setAudioEncodingBitRate(128000);
  
          mRapRecorder.setAudioSamplingRate(44100);
  
          mRapRecorder.setAudioChannels(2);
  
          mRapRecorder.setOutputFile(mVoiceFile.getAbsolutePath());
  
  }`

• Document and validate AVFrame plane pointers.

  26 février 2016, par Reimar Döffinger

  Document and validate AVFrame plane pointers.
  Check that the required plane pointers and only
  
  those are set up.
  
  Currently does not enforce anything for the palette
  
  pointer of pseudopal formats as I am unsure about the
  
  requirements.
  Signed-off-by : Reimar Döffinger <Reimar.Doeffinger@gmx.de>
  

  • [DH] doc/APIchanges
  • [DH] libavcodec/utils.c
  • [DH] libavcodec/version.h
  • [DH] libavutil/frame.h

• Extracting Subtitles from mkv using ffmpeg

  8 février 2016, par Mister V--

  So I’m trying to extract the subtitles and their format (how they look) and also trying to implement them into another mkv of the same video. Long story short, I’m trying to get the nice looking subtitles that follow the colour of their background

  

  and their lovely colours

  

  So when I use FFmpeg to check the streams and how I would map them and whatot and then this shows up

  

  There are up to 40 sum streams all to get the nice looking subtitles. So, how would I get all those out ?