在Mp4Parser 的demo 中,有一个AppendExample.java 示范,写出了如何合并视频。
但在如下面源码所示,如何在合并后获取到新生成的合并视频文件呢?
public class AppendExample {
public static void main(String[] args) throws IOException {
String[] videoUris = new String[]{
"c:\\content\\20150930_161515.mp4",
"c:\\content\\20150930_161525.mp4",
"c:\\content\\20150930_161529.mp4",
"c:\\content\\20150930_161534.mp4",
"c:\\content\\20150930_161543.mp4",
"c:\\content\\20151001_135436.mp4",
"c:\\content\\20151001_135446.mp4",
"c:\\content\\20150930_161515.mp4",
"c:\\content\\20150930_161525.mp4",
"c:\\content\\20150930_161529.mp4",
"c:\\content\\20150930_161534.mp4",
"c:\\content\\20150930_161543.mp4",
"c:\\content\\20151001_135436.mp4",
"c:\\content\\20151001_135446.mp4",
"c:\\content\\20150930_161515.mp4",
"c:\\content\\20150930_161525.mp4",
"c:\\content\\20150930_161529.mp4",
"c:\\content\\20150930_161534.mp4",
"c:\\content\\20150930_161543.mp4",
"c:\\content\\20151001_135436.mp4",
"c:\\content\\20151001_135446.mp4",
"c:\\content\\20150930_161515.mp4",
"c:\\content\\20150930_161525.mp4",
"c:\\content\\20150930_161529.mp4",
"c:\\content\\20150930_161534.mp4",
"c:\\content\\20150930_161543.mp4",
"c:\\content\\20151001_135436.mp4",
"c:\\content\\20151001_135446.mp4",
"c:\\content\\20150930_161515.mp4",
"c:\\content\\20150930_161525.mp4",
"c:\\content\\20150930_161529.mp4",
"c:\\content\\20150930_161534.mp4",
"c:\\content\\20150930_161543.mp4",
"c:\\content\\20151001_135436.mp4",
"c:\\content\\20151001_135446.mp4",
"c:\\content\\20150930_161515.mp4",
"c:\\content\\20150930_161525.mp4",
"c:\\content\\20150930_161529.mp4",
"c:\\content\\20150930_161534.mp4",
"c:\\content\\20150930_161543.mp4",
"c:\\content\\20151001_135436.mp4",
"c:\\content\\20151001_135446.mp4",
"c:\\content\\20150930_161515.mp4",
"c:\\content\\20150930_161525.mp4",
"c:\\content\\20150930_161529.mp4",
"c:\\content\\20150930_161534.mp4",
"c:\\content\\20150930_161543.mp4",
"c:\\content\\20151001_135436.mp4",
"c:\\content\\20151001_135446.mp4",
"c:\\content\\20150930_161515.mp4",
"c:\\content\\20150930_161525.mp4",
"c:\\content\\20150930_161529.mp4",
"c:\\content\\20150930_161534.mp4",
"c:\\content\\20150930_161543.mp4",
"c:\\content\\20151001_135436.mp4",
"c:\\content\\20151001_135446.mp4",
"c:\\content\\20150930_161515.mp4",
"c:\\content\\20150930_161525.mp4",
"c:\\content\\20150930_161529.mp4",
"c:\\content\\20150930_161534.mp4",
"c:\\content\\20150930_161543.mp4",
"c:\\content\\20151001_135436.mp4",
"c:\\content\\20151001_135446.mp4",
"c:\\content\\20150930_161515.mp4",
"c:\\content\\20150930_161525.mp4",
"c:\\content\\20150930_161529.mp4",
"c:\\content\\20150930_161534.mp4",
"c:\\content\\20150930_161543.mp4",
"c:\\content\\20151001_135436.mp4",
"c:\\content\\20151001_135446.mp4",
"c:\\content\\20150930_161515.mp4",
"c:\\content\\20150930_161525.mp4",
"c:\\content\\20150930_161529.mp4",
"c:\\content\\20150930_161534.mp4",
"c:\\content\\20150930_161543.mp4",
"c:\\content\\20151001_135436.mp4",
"c:\\content\\20151001_135446.mp4",
"c:\\content\\20150930_161515.mp4",
"c:\\content\\20150930_161525.mp4",
"c:\\content\\20150930_161529.mp4",
"c:\\content\\20150930_161534.mp4",
"c:\\content\\20150930_161543.mp4",
"c:\\content\\20151001_135436.mp4",
"c:\\content\\20151001_135446.mp4",
"c:\\content\\20151001_135540.mp4"
};
List<Movie> inMovies = new ArrayList<Movie>();
for (String videoUri : videoUris) {
inMovies.add(MovieCreator.build(videoUri));
}
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(String.format("output.mp4"), "rw").getChannel();
out.writeContainer(fc);
fc.close();
}
}
git原址:https://github.com/sannies/mp4parser
非常感谢