Java call FFmpeg implementation of video conversion method _java

This article describes the Java call FFmpeg implementation of video conversion methods. Share to everyone for your reference. The specific analysis is as follows:

Here the environment I was tested under the Windows platform ...

A total of 4 documents are required under E:\ ffmpeg.exe;mencoder.exe;drv43260.dll;pncrt.dll.

Also in E:\input decentralized various file name A of the following video files, but also to E:\output;java program execution can get a a.flv converted files.

Ffmpeg.exe can parse the format: (asx,asf,mpg,wmv,3gp,mp4,mov,avi,flv, etc.)

For Ffmpeg.exe unresolved file formats (WMV9,RM,RMVB, etc.), you can use other tools (MEncoder) to convert to AVI (ffmpeg resolvable) format;

Mencoder.exe;drv43260.dll;pncrt.dll These 3 files are prepared for file format (WMV9,RM,RMVB, etc.) to be converted to AVI (ffmpeg resolvable) format;

Then convert the good AVI file into the FLV format video file with Ffmpeg.exe ...

The contents of the Java file are as follows:

Import Java.io.File;
Import java.util.List;
 public class Convertvideo {private final static String PATH = "C:\\test\\a.mpg";
     public static void Main (string[] args) {if (!checkfile (PATH)) {System.out.println (path+ "are not file");
    Return
    } if (process ()) {System.out.println ("OK");
    }} private static Boolean process () {int type = Checkcontenttype ();
    Boolean status = FALSE; if (type==0) {status = processflv (PATH);//convert file directly to FLV file} else if (type==1) {String Avifilepath = Proces
      SAVI (type); if (Avifilepath = null) return false;//AVI file does not get status = processflv (Avifilepath);//convert AVI to FLV} r
  Eturn status; private static int Checkcontenttype () {String type = path.substring (Path.lastindexof (".") + 1, path.length ()
). toLowerCase ();
    FFmpeg can parse the format: (asx,asf,mpg,wmv,3gp,mp4,mov,avi,flv, etc.) if (Type.equals ("avi")) {return 0; else if (type.equals ("mpg")) {RETUrn 0;
    else if (type.equals ("wmv")) {return 0;
    else if (type.equals ("3gp")) {return 0;
    else if (type.equals ("mov")) {return 0;
    else if (type.equals ("mp4")) {return 0;
    else if (type.equals ("ASF")) {return 0;
    else if (type.equals ("ASX")) {return 0;
    else if (type.equals ("flv")) {return 0;
    //To FFmpeg unresolved file format (WMV9,RM,RMVB, etc.),//can be converted to AVI (ffmpeg resolvable) format with other tools (MEncoder) first.
    else if (type.equals ("WMV9")) {return 1;
    else if (type.equals ("rm")) {return 1;
    else if (type.equals ("RMVB")) {return 1;
  return 9;
   private static Boolean checkfile (String path) {file File=new file (path);
   if (!file.isfile ()) {return false;
  return true;
  //For FFmpeg unresolved file formats (WMV9,RM,RMVB, etc.), you can first convert to AVI (ffmpeg resolvable) format with another tool (MEncoder).
    private static String Processavi (int type) {list<string> commend=new java.util.arraylist<string> (); CoMmend.add ("E:\\mencoder");
    Commend.add (PATH);
    Commend.add ("-oac");
    Commend.add ("LAVC");
    Commend.add ("-lavcopts");
    Commend.add ("acodec=mp3:abitrate=64");
    Commend.add ("-OVC");
    Commend.add ("XviD");
    Commend.add ("-xvidencopts");
    Commend.add ("bitrate=600");
    Commend.add ("-of");
    Commend.add ("Avi");
    Commend.add ("-O");
    Commend.add ("C:\\home\\a.avi");
      try{Processbuilder builder = new Processbuilder ();
      Builder.command (commend);
      Builder.start ();
    return "C:\\home\\a.avi";
     }catch (Exception e) {e.printstacktrace ();
    return null;
   }}//ffmpeg can parse the format: (asx,asf,mpg,wmv,3gp,mp4,mov,avi,flv, etc.) private static Boolean processflv (String oldfilepath) {
     if (!checkfile (PATH)) {System.out.println (oldfilepath+ "is not file");
     return false;
    } list<string> commend=new java.util.arraylist<string> ();
    Commend.add ("E:\\ffmpeg");
    Commend.add ("I");
  Commend.add (Oldfilepath);  Commend.add ("-ab");
    Commend.add ("64");
    Commend.add ("-acodec");
    Commend.add ("MP3");
    Commend.add ("-ac");
    Commend.add ("2");
    Commend.add ("-ar");
    Commend.add ("22050");
    Commend.add ("B");
    Commend.add ("230");
    Commend.add ("-R");
    Commend.add ("24");
    Commend.add ("Y");
    Commend.add ("c:\\home\\a.flv");
      try {processbuilder builder = new Processbuilder ();
      Builder.command (commend);
      Builder.start ();
    return true;
      catch (Exception e) {e.printstacktrace ();
    return false; }
  }
}

I hope this article will help you with your Java programming.