Get video first frame (specified time) picture via FFmpeg

1, videoinfo.java  to obtain video information. Readers can carefully study this method.

Import java.io.*;
Import Java.util.regex.Matcher;

Import Java.util.regex.Pattern; /** * Access to video information * FFMPEG Homepage http://ffmpeg.org/about.html/public class Videoinfo {//video path private String
    Ffmpegapp;
    Video when private int hours;
    Video split private int minutes;
    Video seconds private float seconds;
    Video width private int width;
    

    Video height private int heigt;
    Public Videoinfo () {} public videoinfo (String ffmpegapp) {This.ffmpegapp = Ffmpegapp;  Public String toString () {return "time: + Hours +": "+ minutes +": "+ seconds +", Width = "+
    Width + ", height=" + heigt; } public void GetInfo (String videofilename) throws IOException, interruptedexception {St
        Ring Tmpfile = Videofilename + ". Tmp.png"; Processbuilder Processbuilder = new Processbuilder (Ffmpegapp, "-Y", "I", Videofilename, "-vframes", "1",
       "-ss", "0:0:0", "-an",         "-vcodec", "PNG", "F", "Rawvideo", "-S", "100*100", tmpfile);

        Process process = Processbuilder.start ();
        InputStream stderr = Process.geterrorstream ();
        InputStreamReader ISR = new InputStreamReader (stderr);
        BufferedReader br = new BufferedReader (ISR);
        String Line; Print SB and get more information.
        such as bitrate, width, heigt stringbuffer sb = new StringBuffer ();
        while (line = Br.readline ())!= null) {sb.append (line);
        
        New File (tmpfile). Delete ();
        System.out.println ("video info:\n" + SB);
        Pattern pattern = Pattern.compile ("Duration: (. *?),");
        
        Matcher Matcher = Pattern.matcher (SB);
            if (Matcher.find ()) {String time = Matcher.group (1);
        Calctime (time);
        Pattern = Pattern.compile ("w:\\d+ h:\\d+");
        
        Matcher = Pattern.matcher (SB); if (Matcher.find ()) {String WH= Matcher.group ();
            w:100 h:100 string[] STRs = Wh.split ("\\s+"); if (STRs!= null && strs.length = = 2) {width = Integer.parseint (Strs[0].split (":") [1])
                ;
            Heigt = Integer.parseint (Strs[1].split (":") [1]);
        } process.waitfor ();
        if (br!= null) br.close ();
        if (ISR!= null) isr.close ();
    if (stderr!= null) stderr.close ();
        } private void Calctime (String timestr) {string[] parts = Timestr.split (":");
        Hours = Integer.parseint (Parts[0]);
        minutes = Integer.parseint (parts[1]);
    seconds = Float.parsefloat (parts[2]);
    Public String Getffmpegapp () {return ffmpegapp;
    } public void Setffmpegapp (String ffmpegapp) {This.ffmpegapp = Ffmpegapp;
    public int getHours () {return hours; } public void Sethours (int hours) {this.hours = hours;
    public int getminutes () {return minutes;
    The public void setminutes (int minutes) {this.minutes = minutes;
    public float getseconds () {return seconds;
    public void setseconds (float seconds) {this.seconds = seconds;
    public int getwidth () {return width;
    public void setwidth (int width) {this.width = width;
    public int getheigt () {return heigt;
    The public void setheigt (int heigt) {this.heigt = heigt; public static void Main (string[] args) {Videoinfo videoinfo = new Videoinfo ("D:\\FFMPEG\\BIN\\FFMPEG.E
        Xe ");
            try {videoinfo.getinfo ("f:/sun/diana_vickers_-_the_boy_who_murdered_love.mkv");
        System.out.println (Videoinfo);
        catch (Exception e) {e.printstacktrace (); }
    }
}

From this class, you can see, I put ffmpeg, decompression in the D:\\ffmpeg\\bin\\ffmpeg.exe path, the introduction of a video address, you can draw video information.

2, Videothumbtaker.java get video to specify the time to play the picture

Import java.io.IOException;
Import Java.io.InputStream;
Import Java.io.InputStreamReader;

Import Java.io.BufferedReader; /** * @author Bashan * FFMPEG Homepage http://ffmpeg.org/about.html * by Google get-I and last thumb of a-video usi ng Java and FFMpeg * from http://www.codereye.com/2010/05/get-first-and-last-thumb-of-video-using.html/public class

    Videothumbtaker {protected String Ffmpegapp;
    Public Videothumbtaker (String ffmpegapp) {This.ffmpegapp = Ffmpegapp; @SuppressWarnings ("unused")/**** * Get a picture of a specified time @param videofilename: Video path * @param thumbfilenam E: Picture Save path * @param width: Picture length * @param height: Picture width * @param hour: At specified time * @param min: Designated Sub * @param sec: Means Fixed seconds * @throws IOException * @throws interruptedexception/public void Getthumb (String videofilename, S Tring thumbfilename, int width, int height, int hour, int min, float sec) throws IOException, inte Rruptedexception {Processbuilder Processbuilder = new Processbuilder (Ffmpegapp, "-Y", "I", video  Filename, "-vframes", "1", "-ss", Hour + ":" + min + ":" + sec, "F", "Mjpeg", "s", Width + "*" +

        Height, "-an", thumbfilename);

        Process process = Processbuilder.start ();
        InputStream stderr = Process.geterrorstream ();
        InputStreamReader ISR = new InputStreamReader (stderr);
        BufferedReader br = new BufferedReader (ISR);
        String Line;
        while (line = Br.readline ())!= null);
        
        Process.waitfor ();
        if (br!= null) br.close ();
        if (ISR!= null) isr.close ();
    if (stderr!= null) stderr.close (); public static void Main (string[] args) {Videothumbtaker videothumbtaker = new Videothumbtaker ("D:\\ffm
        Peg\\bin\\ffmpeg.exe "); try {Videothumbtaker.getthumb ("F: