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import org.jaudiotagger.audio.AudioFile;
import org.jaudiotagger.audio.AudioFileIO;
import org.jaudiotagger.tag.FieldKey;
import org.jaudiotagger.tag.Tag;
import org.jaudiotagger.tag.datatype.Artwork;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import javax.swing.*;
import java.io.File;
import java.time.LocalTime;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.Arrays;
public class Downloader {
private final String outputDirectory;
private final JTextArea outputArea;
String[] formats = {"maxresdefault.jpg", "mqdefault.jpg", "hqdefault.jpg"};
public Downloader(String outputDirectory, JTextArea outputArea){
this.outputDirectory = outputDirectory;
this.outputArea = outputArea;
}
/**
* Tag mp3 with title, uploader, and image
* @param uploader Uploader of the video
* @param title Title of the video
* @param imageUrl URL of to the thumbnail image
*/
public boolean tagMp3InDir(String uploader, String title, String imageUrl, String filePath) {//Tag mp3 file in downloaded directory
try {
AudioFile f = AudioFileIO.read(FileUtility.findFileWithType(filePath, "mp3"));
System.out.println("File found at: " + FileUtility.findFileWithType(filePath, "mp3"));
Tag tag = f.getTag();
System.out.println("Uploader: " + uploader);
System.out.println("Title: " + title);
tag.setField(FieldKey.ARTIST, uploader);
tag.setField(FieldKey.TITLE, title);
String pathToThumnail = FileUtility.downloadImage(imageUrl, "img.jpg", formats);
Artwork cover = Artwork.createArtworkFromFile(new File(pathToThumnail));
tag.addField(cover);
f.commit();
FileUtility.deleteFile(pathToThumnail);
}
catch(Exception e){
JOptionPane.showMessageDialog(
null,
"Error occured while tagging mp3. Check your program version",
"ERROR", JOptionPane.ERROR_MESSAGE);
return false;
}
return true;
}
/**
* Relays the console output from the CMD to the outputArea
* @param p The process to relay to the outputArea from
*/
public void relayConsole(Process p) {
BufferedReader r = new BufferedReader(new InputStreamReader(p.getInputStream()));
String cmd_line;
while (true) {
try {
cmd_line = r.readLine();
if (cmd_line == null) {
break;
}
System.out.println(cmd_line);
outputArea.setText(outputArea.getText() + "\n" + cmd_line);
}
catch (IOException e) {
System.out.println("Error while relaying from CMD");
}
}
}
/*
Download a part of a video
*/
public boolean download(String url, String stamp){
ArrayList<String> times = new ArrayList<>(Arrays.asList(stamp.split("-")));
String startTime = times.get(0);
String endTime = times.get(1);
int startSec = timestampToSeconds(startTime);
int endSec = timestampToSeconds(endTime);
try {
ProcessBuilder builder = new ProcessBuilder(
"yt-dlp",
"-vU","--force-keyframes",
"-f", "bestaudio[ext=webm]",
"--download-sections","*"+startSec+"-"+endSec,
"-o", "%(title)s[%(id)s].%(ext)s",
"--write-info-json",
url
);
builder.directory(new File(System.getProperty("user.dir")));
builder.redirectErrorStream(true);
Process p = builder.start();
relayConsole(p);
} catch (Exception e) {
JOptionPane.showMessageDialog(null, "An error occurred while downloading using yt-dlp: " + e.getMessage(), "Error", JOptionPane.ERROR_MESSAGE);
}
File downloadedWebm = FileUtility.findFileWithType(System.getProperty("user.dir"), "webm");
if(downloadedWebm == null){
UI.Modal.showError("Error finding downloaded webm file. Ensure that yt-dlp is able to download");
return false;
}
try{
ProcessBuilder builder = new ProcessBuilder(
"ffmpeg",
"-i", downloadedWebm.getAbsolutePath(),
"-vn",
"-ab", "128k",
"-ar", "44100",
"-y",
downloadedWebm.getAbsolutePath().replace(".webm", ".mp3")
);
builder.directory(new File(System.getProperty("user.dir")));
builder.redirectErrorStream(true);
Process p = builder.start();
relayConsole(p);
} catch(Exception e){
JOptionPane.showMessageDialog(null, "An error occurred while converting the webm file to mp3: " + e.getMessage(), "Error", JOptionPane.ERROR_MESSAGE);
}
String[] info = FileUtility.parseInfoJSON(FileUtility.jsonToString(FileUtility.findJsonFile(System.getProperty("user.dir"))));
String uploader = info[1];
String title = info[0];
String urlID = info[2];
String imageUrl = "https://img.youtube.com/vi/" + urlID+"/";
File downloadedMp3 = FileUtility.findFileWithType(System.getProperty("user.dir"), "mp3");
if(downloadedMp3 == null){
UI.Modal.showError("Error finding downloaded mp3 file. Ensure that yt-dlp is able to download");
return false;
}
String savedNonAlphaNumName;
try{
savedNonAlphaNumName = downloadedMp3.getName();
}
catch(NullPointerException ex){
UI.Modal.showError("Error finding downloaded mp3 file. Ensure that yt-dlp is able to download");
return false;
}
String tempRemoveAlphaNumeric = savedNonAlphaNumName.replaceAll("[^a-zA-Z0-9]", "") + ".mp3";
if(!downloadedMp3.renameTo(new File(tempRemoveAlphaNumeric)))
UI.Modal.showError("Error renaming file");
tagMp3InDir(uploader, title, imageUrl, System.getProperty("user.dir"));
FileUtility.deleteFile(downloadedWebm.getAbsolutePath());
FileUtility.deleteFile(FileUtility.findJsonFile(System.getProperty("user.dir")));
downloadedMp3 = FileUtility.findFileWithType(System.getProperty("user.dir"), "mp3");
if(downloadedMp3 == null){
UI.Modal.showError("Error finding downloaded mp3 file. Ensure that yt-dlp is able to download");
return false;
}
if(!downloadedMp3.renameTo(new File(outputDirectory+"/"+savedNonAlphaNumName+"["+startTime+"-"+endTime+"].mp3"))){
UI.Modal.showError("Error moving file to output directory");
return false;
}
return true;
}
public boolean download(String url){
String ytDlpExecutable = "yt-dlp" + (System.getProperty("os.name").startsWith("Windows") ? ".exe" : "");
try {
String[] command = {ytDlpExecutable, "-f", "bestaudio[ext=webm]", "-x", "--audio-format", "mp3", "--write-info-json", url, "-o", "%(title)s[%(id)s].%(ext)s"};
ProcessBuilder processBuilder = new ProcessBuilder(command);
processBuilder.directory(new File(System.getProperty("user.dir")));
Process process = processBuilder.start();
relayConsole(process);
process.waitFor();
} catch(Exception e){
UI.Modal.showError("Ensure yt-dlp is installed. An error occurred while downloading using yt-dlp: " + e.getMessage());
return false;
}
String[] info = FileUtility.parseInfoJSON(FileUtility.jsonToString(FileUtility.findJsonFile(System.getProperty("user.dir"))));
String uploader = info[1];
String title = info[0];
String urlID = info[2];
String imageUrl = "https://img.youtube.com/vi/" + urlID + "/";
File downloadedMp3 = FileUtility.findFileWithType(System.getProperty("user.dir"), "mp3");
if(downloadedMp3 == null){
UI.Modal.showError("Error finding downloaded mp3 file. Ensure that yt-dlp is able to download");
return false;
}
String savedNonAlphaNumName = downloadedMp3.getName();
String tempRemoveAlphaNumeric = savedNonAlphaNumName.replaceAll("[^a-zA-Z0-9]", "") + ".mp3";
if(!downloadedMp3.renameTo(new File(tempRemoveAlphaNumeric))){
UI.Modal.showError("Error renaming file");
return false;
}
System.out.println("File renamed to: " + tempRemoveAlphaNumeric);
FileUtility.deleteFile(FileUtility.findJsonFile(System.getProperty("user.dir")));
tagMp3InDir(uploader, title, imageUrl, System.getProperty("user.dir"));
downloadedMp3 = FileUtility.findFileWithType(System.getProperty("user.dir"), "mp3");
if(downloadedMp3 == null){
UI.Modal.showError("Error finding downloaded mp3 file. Ensure that yt-dlp is able to download");
return false;
}
if(!downloadedMp3.renameTo(new File(outputDirectory+"/"+savedNonAlphaNumName))){
UI.Modal.showError("Error moving file to output directory");
return false;
}
return true;
}
public static int timestampToSeconds(String timestamp) {
int totalSeconds = 0;
try {
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("HH:mm:ss");
LocalTime time = LocalTime.parse(timestamp, formatter);
int hours = time.getHour();
int minutes = time.getMinute();
int seconds = time.getSecond();
totalSeconds = hours * 3600 + minutes * 60 + seconds;
System.out.println(totalSeconds);
} catch (Exception e) {
System.out.println("Error converting timestamp to seconds");
}
return totalSeconds;
}
}
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