I am working on YouTube broadcasting Java program. So far, I can create live event using this program:
https://github.com/youtube/api-samples/tree/master/java
For more detail what I am getting so far, please see my another question:
Now, the next thing is I want to create a video stream which will be passed to live streaming YouTube APIs so that my video will be broadcasting as Live Event on YouTube.
For this, I am using Xuggler library 5.2. However, when I try to run sample program for Xuggler so I get following message and neither works anything nor my webcam starts.
Source code:
import java.awt.Dimension;
import java.awt.image.BufferedImage;
import com.github.sarxos.webcam.Webcam;
import com.github.sarxos.webcam.WebcamResolution;
import com.xuggle.xuggler.ICodec;
import com.xuggle.xuggler.IContainer;
import com.xuggle.xuggler.IContainerFormat;
import com.xuggle.xuggler.IPacket;
import com.xuggle.xuggler.IPixelFormat;
import com.xuggle.xuggler.IRational;
import com.xuggle.xuggler.IStream;
import com.xuggle.xuggler.IStreamCoder;
import com.xuggle.xuggler.IVideoPicture;
import com.xuggle.xuggler.video.ConverterFactory;
import com.xuggle.xuggler.video.IConverter;
public class HelloWorld {
public static void main(String[] args) {
IContainer container = IContainer.make();
IContainerFormat containerFormat_live = IContainerFormat.make();
containerFormat_live.setOutputFormat("flv", "rtmp://a.rtmp.youtube.com" + "/"+ "live2", null);
container.setInputBufferLength(0);
int retVal = container.open("rtmp://a.rtmp.youtube.com" + "/"+ "live2", IContainer.Type.WRITE, containerFormat_live);
if (retVal < 0) {
System.err.println("Could not open output container for live stream");
System.exit(1);
}
Dimension size = WebcamResolution.QVGA.getSize();
IStream stream = container.addNewStream(0);
IStreamCoder coder = stream.getStreamCoder();
ICodec codec = ICodec.findEncodingCodec(ICodec.ID.CODEC_ID_H264);
coder.setNumPicturesInGroupOfPictures(4);
coder.setCodec(codec);
coder.setBitRate(500000);
coder.setPixelType(IPixelFormat.Type.YUV420P);
coder.setHeight(size.height);
coder.setWidth(size.width);
System.out.println("[ENCODER] video size is " + size.width + "x" + size.height);
coder.setFlag(IStreamCoder.Flags.FLAG_QSCALE, true);
coder.setGlobalQuality(0);
IRational frameRate = IRational.make(24, 1);
coder.setFrameRate(frameRate);
coder.setTimeBase(IRational.make(frameRate.getDenominator(), frameRate.getNumerator()));
coder.open();
container.writeHeader();
long firstTimeStamp = System.currentTimeMillis();
long lastTimeStamp = -1;
int i = 0;
try {
// Robot robot = new Robot();
Webcam webcam = Webcam.getDefault();
webcam.setViewSize(size);
webcam.open();
while (i < 100000000) {
//long iterationStartTime = System.currentTimeMillis();
long now = System.currentTimeMillis();
//grab the screenshot
BufferedImage image = webcam.getImage();
//convert it for Xuggler
BufferedImage currentScreenshot = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_3BYTE_BGR);
currentScreenshot.getGraphics().drawImage(image, 0, 0, null);
//start the encoding process
IPacket packet = IPacket.make();
IConverter converter = ConverterFactory.createConverter(currentScreenshot, IPixelFormat.Type.YUV420P);
long timeStamp = (now - firstTimeStamp) * 1000;
IVideoPicture outFrame = converter.toPicture(currentScreenshot, timeStamp);
if (i == 0) {
//make first frame keyframe
outFrame.setKeyFrame(true);
}
outFrame.setQuality(0);
coder.encodeVideo(packet, outFrame, 0);
outFrame.delete();
if (packet.isComplete()) {
container.writePacket(packet);
System.out.println("[ENCODER] writing packet of size " + packet.getSize() + " for elapsed time " + ((timeStamp - lastTimeStamp) / 1000));
lastTimeStamp = timeStamp;
}
System.out.println("[ENCODER] encoded image " + i + " in " + (System.currentTimeMillis() - now));
i++;
try {
Thread.sleep(Math.max((long) (1000 / frameRate.getDouble()) - (System.currentTimeMillis() - now), 0));
} catch (InterruptedException e) {
e.printStackTrace();
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
On running, getting this message:
23:13:38,807 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback-test.xml]
23:13:38,808 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Could NOT find resource [logback.xml]
23:13:38,811 |-INFO in ch.qos.logback.classic.LoggerContext[default] - Setting up default configuration.
23:13:38,878 |-WARN in ch.qos.logback.core.ConsoleAppender[console] - This appender no longer admits a layout as a sub-component, set an encoder instead.
23:13:38,878 |-WARN in ch.qos.logback.core.ConsoleAppender[console] - To ensure compatibility, wrapping your layout in LayoutWrappingEncoder.
23:13:38,878 |-WARN in ch.qos.logback.core.ConsoleAppender[console] - See also http://logback.qos.ch/codes.html#layoutInsteadOfEncoder for details
23:13:46.644 [main] ERROR org.ffmpeg - RTMP_ReadPacket, failed to read RTMP packet header
Could not open output container for live stream
23:13:46.650 [main] ERROR com.xuggle.xuggler - URL: rtmp://a.rtmp.youtube.com/live2; Error: could not open file (../../../../../../../csrc/com/xuggle/xuggler/Container.cpp:516)
I don't understand what's going wrong. Why my webcam won't start?