android - 将两个音频文件合并为一个文件

Question

我真的需要一些帮助。我想合并两个音频文件并将单个音频文件制作为 .mp3 我认为我们可以在获取它们的字节后合并两个文件，但我不确定它是否会起作用。我需要一些适当的解决方案来做到这一点

Answer 1

嗨看看下面的代码可能对你有帮助

public void mergeParts ( ArrayList<String> nameList, String DESTINATION_PATH )
 {
  File[] file = new File[nameList.size()];
  byte AllFilesContent[] = null;

  int TOTAL_SIZE = 0;
  int FILE_NUMBER = nameList.size();
  int FILE_LENGTH = 0;
  int CURRENT_LENGTH=0;

  for ( int i=0; i<FILE_NUMBER; i++)
  {
   file[i] = new File (nameList.get(i));
   TOTAL_SIZE+=file[i].length();
  }

  try {
   AllFilesContent= new byte[TOTAL_SIZE]; // Length of All Files, Total Size
   InputStream inStream = null;

   for ( int j=0; j<FILE_NUMBER; j++)
   {
    inStream = new BufferedInputStream ( new FileInputStream( file[j] ));
    FILE_LENGTH = (int) file[j].length();
    inStream.read(AllFilesContent, CURRENT_LENGTH, FILE_LENGTH);
    CURRENT_LENGTH+=FILE_LENGTH;
    inStream.close();
   }

  }
  catch (FileNotFoundException e)
  {
   System.out.println("File not found " + e);
  }
  catch (IOException ioe)
  {
    System.out.println("Exception while reading the file " + ioe);
  }
  finally 
  {
   write (AllFilesContent,DESTINATION_PATH);
  }

  System.out.println("Merge was executed successfully.!");

 }