Nekojimi
/
Chords
1
0
Fork 0
Code Issues 14 Pull Requests Projects Releases Wiki Activity

WIP: initial work on streaming instead of downloading.

Browse Source
master
Nekojimi 9 months ago
parent c8684dbe75
commit 6759afe76b
2 changed files with 125 additions and 85 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 106
      src/main/java/moe/nekojimi/chords/Downloader.java
  2. 20
      src/main/java/moe/nekojimi/chords/TrackPlayer.java

106
src/main/java/moe/nekojimi/chords/Downloader.java
Unescape View File

@ -5,10 +5,8 @@
*/
package moe.nekojimi.chords;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringReader;
import com.beust.jcommander.Strings;
import java.io.*;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.util.*;
@ -40,6 +38,7 @@ public class Downloader extends QueueThing<TrackRequest, Track>
private static final int BITRATE_TARGET = (int) AudioSendHandler.INPUT_FORMAT.getSampleRate();
private static final Pattern FORMAT_PATTERN = Pattern.compile("^([\\w]+)\\s+([\\w]+)\\s+(\\w+ ?\\w*)\\s+(.*)$");
public static final Pattern DESTINATION_PATTERN = Pattern.compile("Destination: (.*\\.wav)");
public static final Pattern STREAM_PATTERN = Pattern.compile("Destination: -");
public static final Pattern PROGRESS_PATTERN = Pattern.compile("\\[download\\].*?([\\d\\.]+)%");
private static final Pattern INFO_JSON_PATTERN = Pattern.compile("Writing video metadata as JSON to: (.*\\.info\\.json)");
private static final Pattern ETA_PATTERN = Pattern.compile("\\[download\\].*?ETA\\s+(\\d{1,2}:\\d{2})");
@ -99,7 +98,8 @@ public class Downloader extends QueueThing<TrackRequest, Track>
{
getInfo(request);
download(promise);
boolean streamOutput = request.getTracks().size() == 1;
download(promise, streamOutput);
} catch (Exception ex)
{
ex.printStackTrace();
@ -157,8 +157,8 @@ public class Downloader extends QueueThing<TrackRequest, Track>
return;
try
{
String cmd = Chords.getSettings().getYtdlCommand() + " --skip-download -F " + track.getUrl().toString();
Process exec = runCommand(cmd, FORMAT_TIMEOUT);
// String cmd = + " --skip-download -F " + track.getUrl().toString();
Process exec = runCommand(List.of(Chords.getSettings().getYtdlCommand(), "--skip-download", "-F", track.getUrl().toString()), FORMAT_TIMEOUT);
InputStream input = exec.getInputStream();
String output = new String(input.readAllBytes(), Charset.defaultCharset());
@ -231,8 +231,8 @@ public class Downloader extends QueueThing<TrackRequest, Track>
List<Track> ret = new ArrayList<>();
try
{
String cmd = Chords.getSettings().getYtdlCommand() + " --skip-download --print-json " + request.getUrl().toString();
Process exec = runCommand(cmd, INFO_TIMEOUT);
// String cmd = Chords.getSettings().getYtdlCommand() + " --skip-download --print-json " + request.getUrl().toString();
Process exec = runCommand(List.of(Chords.getSettings().getYtdlCommand(), "--skip-download", "--print-json", request.getUrl().toString()), INFO_TIMEOUT);
InputStream input = exec.getInputStream();
// read each line as JSON, turn each into a track object
@ -330,7 +330,7 @@ public class Downloader extends QueueThing<TrackRequest, Track>
return request.getTracks().get(idx);
}
private void download(Promise<TrackRequest, Track> promise) throws InterruptedException, ExecutionException
private void download(Promise<TrackRequest, Track> promise, boolean streamOutput) throws InterruptedException, ExecutionException
{
TrackRequest request = promise.getInput();
Set<Format> uniqueFormats = new HashSet<>();
@ -351,20 +351,61 @@ public class Downloader extends QueueThing<TrackRequest, Track>
try
{
messageHandler.accept(request, null);
String cmd = Chords.getSettings().getYtdlCommand()
+ " -x"
+ " -f " + formatCodes + "worstaudio/bestaudio/worst/best"
+ " --audio-format=wav"
+ " --no-playlist"
// + " --extractor-args youtube:player_client=android"
+ " -N 8"
+ " -o " + getDownloadDir().getAbsolutePath() + "/%(title)s.%(ext)s "
+ request.getUrl().toString();
Process exec = runCommand(cmd, DOWNLOAD_TIMEOUT);
InputStream in = exec.getInputStream();
Scanner sc = new Scanner(in);
List<String> cmd = new ArrayList<>();
cmd.add(Chords.getSettings().getYtdlCommand());
cmd.add("-x");
cmd.add("-f=" + formatCodes + "worstaudio/bestaudio/worst/best");
cmd.add("--audio-format=wav");
cmd.add("--no-playlist");
// cmd.add(" --extractor-args youtube:player_client=android";
cmd.add("-N8");
if (streamOutput)
{
cmd.add("--downloader=ffmpeg"); // download using FFMpeg
cmd.add("--downloader-args=ffmpeg:-f wav -c:a pcm_s16le"); // tell FFMpeg to convert to wav
cmd.add("-o"); // output to stdout
cmd.add("-");
} else
{
cmd.add("-o " + getDownloadDir().getAbsolutePath() + "/%(title)s.%(ext)s");
}
cmd.add(request.getUrl().toString());
Process exec = runCommand(cmd, streamOutput ? 0 : DOWNLOAD_TIMEOUT);
if (streamOutput)
{
Scanner sc = new Scanner(exec.getErrorStream());
while (sc.hasNextLine())
{
String line = sc.nextLine();
System.out.println(line);
Matcher streamMatcher = STREAM_PATTERN.matcher(line);
if (streamMatcher.find())
{
break;
}
}
if (!exec.isAlive() && exec.exitValue() != 0)
throw new RuntimeException("yt-dlp failed with error code " + exec.exitValue());
Track track = getTrackFromRequest(request, 0);
BufferedInputStream inBuf = new BufferedInputStream(exec.getInputStream());
inBuf.mark(128);
final byte[] headerBytes = inBuf.readNBytes(80);
String header = new String(headerBytes);
System.out.println("streaming data header: " + header);
if (!header.startsWith("RIFF"))
throw new RuntimeException("Streaming data has bad header!");
inBuf.reset();
track.setInputStream(inBuf);
promise.complete(track);
track.setProgress(100.0);
messageHandler.accept(request, null);
} else
{
Scanner sc = new Scanner(exec.getInputStream());
while (sc.hasNextLine())
{
String line = sc.nextLine();
@ -374,8 +415,6 @@ public class Downloader extends QueueThing<TrackRequest, Track>
if (itemMatcher.find())
{
int idx = Integer.parseInt(itemMatcher.group(1)) - 1;
// int total = Integer.parseInt(itemMatcher.group(2));
downloadIdx = idx;
}
@ -415,6 +454,7 @@ public class Downloader extends QueueThing<TrackRequest, Track>
{
throw new RuntimeException("youtube-dl failed to exit.");
}
}
messageHandler.accept(request, null);
} catch (Exception ex)
@ -426,11 +466,12 @@ public class Downloader extends QueueThing<TrackRequest, Track>
}
}
private Process runCommand(String cmd, int timeoutSecs) throws RuntimeException, IOException, InterruptedException
private Process runCommand(List<String> cmd, int timeoutSecs) throws RuntimeException, IOException, InterruptedException
{
System.out.println("Running command: " + cmd);
// Process exec = Runtime.getRuntime().exec().split(" "));
Process exec = new ProcessBuilder(cmd.split(" ")).redirectOutput(ProcessBuilder.Redirect.PIPE).redirectError(ProcessBuilder.Redirect.PIPE).start();
Process exec = new ProcessBuilder(cmd).redirectOutput(ProcessBuilder.Redirect.PIPE).redirectError(ProcessBuilder.Redirect.PIPE).start();
if (timeoutSecs > 0)
{
scheduler.schedule(() ->
{
if (exec.isAlive())
@ -439,12 +480,7 @@ public class Downloader extends QueueThing<TrackRequest, Track>
System.err.println("Process " + cmd + " took too long, killing process.");
}
}, timeoutSecs, TimeUnit.SECONDS);
// boolean done = exec.waitFor(timeoutSecs, TimeUnit.SECONDS);
// if (!done)
// {
// exec.destroyForcibly();
// throw new RuntimeException("Took too long, giving up.");
// }
}
return exec;
}

20
src/main/java/moe/nekojimi/chords/TrackPlayer.java
Unescape View File

@ -5,6 +5,7 @@
*/
package moe.nekojimi.chords;
import java.io.BufferedInputStream;
import java.io.Closeable;
import java.io.IOException;
import java.nio.ByteBuffer;
@ -39,30 +40,32 @@ public class TrackPlayer implements Closeable
{
AudioInputStream in = null;
AudioFormat decodedFormat = null;
for (int retry = 0; retry < RETRY_COUNT; retry++)
int retry = 0;
while (in == null)
{
try
{
in = AudioSystem.getAudioInputStream(track.getInputStream());
in = AudioSystem.getAudioInputStream(new BufferedInputStream(track.getInputStream()));
decodedFormat = AudioSendHandler.INPUT_FORMAT;
break; // it worked!
} catch (Exception ex)
{
retry++;
if (retry < RETRY_COUNT)
{
System.err.println("Open file " + track.getLocation() + " failed because " + ex.getMessage() + " retry " + retry + "...");
try
{
Thread.sleep(((long) Math.pow(2, retry)) * RETRY_DELAY);
} catch (InterruptedException ex1)
{
if (retry < RETRY_COUNT)
{
System.err.println("Open file " + track.getLocation() + " failed, retry " + retry + "...");
continue;
}
} else
{
throw ex;
}
}
}
}
input = AudioSystem.getAudioInputStream(decodedFormat, in);
@ -88,7 +91,7 @@ public class TrackPlayer implements Closeable
// throw new OutOfInputException();
int toRead = Math.min(length, audioBuffer.getCurrentNumberOfBytes());
// System.out.println("To read: " + toRead + " from " + audioBuffer.getCurrentNumberOfBytes());
System.out.println("To read: " + toRead + " from " + audioBuffer.getCurrentNumberOfBytes());
if (toRead <= 0)
throw new OutOfInputException();
@ -166,6 +169,7 @@ public class TrackPlayer implements Closeable
}
public static class OutOfInputException extends RuntimeException
{

Write Preview
Loading…
Cancel
Save