如何在Android中合并两个或多个MP3音频文件? [英] How to merge two or more mp3 audio file in android?
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问题描述
我正在尝试合并mp3音频文件,但未成功.
I'm trying to merge mp3 audio files But not successful.
这是我的代码.
public static void meargeAudio(List<File> filesToMearge)
{
while (filesToMearge.size()!=1){
try {
FileInputStream fistream1 = new FileInputStream(new File(filesToMearge.get(0).getPath())); //(/storage/emulated/0/Audio Notes/1455194356500.mp3) first source file
FileInputStream fistream2 = new FileInputStream(new File(filesToMearge.get(1).getPath()));//second source file
File file1 = new File(filesToMearge.get(0).getPath());
boolean deleted = file1.delete();
File file2 = new File(filesToMearge.get(1).getPath());
boolean deleted1 = file2.delete();
SequenceInputStream sistream = new SequenceInputStream(fistream1, fistream2);
FileOutputStream fostream = new FileOutputStream(new File(filesToMearge.get(0).getPath()),true);//destinationfile
int temp;
while ((temp = sistream.read()) != -1) {
// System.out.print( (char) temp ); // to print at DOS prompt
fostream.write(temp); // to write to file
}
filesToMearge.add(0,new File(filesToMearge.get(0).getPath()));
filesToMearge.remove(1);
filesToMearge.remove(1);
fostream.close();
sistream.close();
fistream1.close();
fistream2.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
例如
firstFileSize = 12kb
firstFileSize =12kb
secondFileSize = 10kb
secondFileSize =10kb
finalfileSize = 22kb
finalfileSize=22kb
尺寸准确但声音缺失
没有错误,但结果是我发现finalfile仅包含第一个文件音频,而第二个文件音频丢失.
No error but in result i found finalfile contains only first file audio second file audio is missing.
不知道问题出在什么地方,如果有人知道解决方案对我有帮助.
Don't know what is the issue.if any one know the solution help me.
谢谢
推荐答案
I also struggled with that and solved it using mp4parser
import com.googlecode.mp4parser.authoring.Movie;
import com.googlecode.mp4parser.authoring.Track;
import com.googlecode.mp4parser.authoring.builder.DefaultMp4Builder;
import com.googlecode.mp4parser.authoring.container.mp4.MovieCreator;
import com.googlecode.mp4parser.authoring.tracks.AppendTrack;
对于您的情况,我相信这样的方法应该起作用:
For your case, I believe something like this should work:
public static void mergeAudio(List<File> filesToMerge) {
String output = Environment.getExternalStorageDirectory().getAbsolutePath() + "output.mp3";
while (filesToMerge.size()!=1){
try {
String[] videoUris = new String[]{
filesToMerge.get(0).getPath(),
filesToMerge.get(0).getPath()
};
List<Track> videoTracks = new LinkedList<Track>();
List<Track> audioTracks = new LinkedList<Track>();
for (Movie m : inMovies) {
for (Track t : m.getTracks()) {
if (t.getHandler().equals("soun")) {
audioTracks.add(t);
}
if (t.getHandler().equals("vide")) {
videoTracks.add(t);
}
}
}
Movie result = new Movie();
if (!audioTracks.isEmpty()) {
result.addTrack(new AppendTrack(audioTracks.toArray(new Track[audioTracks.size()])));
}
if (!videoTracks.isEmpty()) {
result.addTrack(new AppendTrack(videoTracks.toArray(new Track[videoTracks.size()])));
}
Container out = new DefaultMp4Builder().build(result);
FileChannel fc = new RandomAccessFile(output, "rw").getChannel();
out.writeContainer(fc);
fc.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
有一些答案提示,例如:
There are a few answers suggesting that, such as:
- Merging 2 audio files sequentially in android?
- Concatenate two audio files and play resulting file
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