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• How to intergrate FFMPEG NDK library in android project to decode the audio files ?

  19 août 2014, par saranya

  How to decode the audio files using FFMPEG NDK library ?
  Below is the code i used to decode the mp3 file after merging two mp3 files.
  try

              String tempPath = Environment.getExternalStorageDirectory()+"/"+mvalue+".mp3";
  
  
  
              File fileTemp = new File(tempPath);
  
  
  
              ffmpeg = new FfmpegController(fileTemp,outFile);
  
  
  
  
  
              Clip clipMixOut = new Clip(outFile.getCanonicalPath());
  
  
  
              try {
  
                  ffmpeg.convertToMPEG(clipMixOut,mCodecPath, new ShellUtils.ShellCallback() {
  
  
  
                      @Override
  
                      public void shellOut(String shellLine) {
  
                          // TODO Auto-generated method stub
  
                          System.out.println("fc>" + shellLine);
  
  
  
                      }
  
  
  
                      @Override
  
                      public void processComplete(int exitValue) {
  
                          // TODO Auto-generated method stub
  
                          System.err.println("concat non-zero exit: " + exitValue);
  
  
  
                      }
  
                  });
  
              } catch (Exception e) {
  
                  // TODO Auto-generated catch block
  
                  e.printStackTrace();
  
              }
  
  
  
          } catch (IOException e) {
  
              Log.e(TAG+":::", "IOException running ffmpeg" + e.getMessage());
  
          }

• ffmpeg audio property is blank in output video

  25 juin 2015, par hrs

  Here’s what I have to do,
  I want to convert two different images in different video file (ex : convert a.jpg into a.avi and b.jpg into b.avi).

  I am trying to generate video (.avi) from image file. Video file is generated successfully but I can’t see the audio properties when I right click on video and see details tab in property.

  Then I have one video file (.avi), using ffmpeg concat function, I am concating these three video files (a.avi, middle.avi which I already have, b.avi).
  After this, I am getting file output.avi but audio is not there in outout.avi file. I have middle.avi which already contains audio.

  Here’s my concat command,

  ffmpeg -i "concat:a.avi|middle.avi|b.avi" -vcodec copy 103_n4_2.avi

  I am trying to generate video (.avi) from only one image file. Video file is generated successfully but I can’t see the audio properties when I right click on video and see details tab in property.

  Here’s my command to convert image to video :

  ffmpeg -loop 1 -i bCopy.jpg -t 30 -q:v 0 -r 24 output_a.avi 

  PS : a.avi and b.avi (which I have generated from images does not contain audio) but only middle.avi contains the audio.

• ffmpeg : Convert gif to video

  7 décembre 2016, par Aminesrine

  I want to convert a gif file to a video with ffmpeg.
  I’m using :

  ffmpeg -y -i /gif/583fd7661b46d.gif -strict -2 -an -b:v 32M /gif/mp4/583fd7661b46d.avi

  The duration of my gif in photoshop is 27 seconds, but the duration of the video "583fd7661b46d.avi" generated is 15 seconds.
  How can I get the same duration of my gif in the video generated ?

  I execute this :

  ffplay file.gif

  It steel read without stoping and the "M-V" is incremented