protected void prepareVideo(
IVideoResampler[] iVideoResamplers,
IVideoPicture[] inputIVideoPictures,
IVideoPicture[] outputIVideoPictures,
IStreamCoder inputIStreamCoder,
IStreamCoder[] outputIStreamCoders,
IContainer outputIContainer,
IStream[] outputIStreams,
ICodec.Type inputICodecType,
String outputURL,
int index)
throws Exception {
ICodec iCodec = getVideoEncodingICodec(inputICodecType, outputURL);
if (iCodec == null) {
throw new RuntimeException(
"Unable to determine " + inputICodecType + " encoder for " + outputURL);
}
IStream outputIStream = outputIContainer.addNewStream(iCodec);
outputIStreams[index] = outputIStream;
IStreamCoder outputIStreamCoder = outputIStream.getStreamCoder();
outputIStreamCoders[index] = outputIStreamCoder;
int bitRate = inputIStreamCoder.getBitRate();
if (_log.isInfoEnabled()) {
_log.info("Original video bitrate " + bitRate);
}
bitRate = getVideoBitRate(bitRate);
if (_log.isInfoEnabled()) {
_log.info("Modified video bitrate " + bitRate);
}
outputIStreamCoder.setBitRate(bitRate);
IRational iRational = inputIStreamCoder.getFrameRate();
if (_log.isInfoEnabled()) {
_log.info(
"Original frame rate " + iRational.getNumerator() + "/" + iRational.getDenominator());
}
iRational = getVideoFrameRate(iRational);
if (_log.isInfoEnabled()) {
_log.info(
"Modified frame rate " + iRational.getNumerator() + "/" + iRational.getDenominator());
}
outputIStreamCoder.setFrameRate(iRational);
if (inputIStreamCoder.getHeight() <= 0) {
throw new RuntimeException("Unable to determine height for " + _inputURL);
}
if (_height == 0) {
_height = inputIStreamCoder.getHeight();
}
outputIStreamCoder.setHeight(_height);
outputIStreamCoder.setPixelType(Type.YUV420P);
outputIStreamCoder.setTimeBase(
IRational.make(iRational.getDenominator(), iRational.getNumerator()));
if (inputIStreamCoder.getWidth() <= 0) {
throw new RuntimeException("Unable to determine width for " + _inputURL);
}
if (_width == 0) {
_width = inputIStreamCoder.getWidth();
}
outputIStreamCoder.setWidth(_width);
iVideoResamplers[index] =
createIVideoResampler(inputIStreamCoder, outputIStreamCoder, _height, _width);
inputIVideoPictures[index] =
IVideoPicture.make(
inputIStreamCoder.getPixelType(),
inputIStreamCoder.getWidth(),
inputIStreamCoder.getHeight());
outputIVideoPictures[index] =
IVideoPicture.make(
outputIStreamCoder.getPixelType(),
outputIStreamCoder.getWidth(),
outputIStreamCoder.getHeight());
ICodec.ID iCodecID = iCodec.getID();
if (iCodecID.equals(ICodec.ID.CODEC_ID_H264)) {
Configuration.configure(_ffpresetProperties, outputIStreamCoder);
}
}
protected void prepareVideo(
IVideoResampler[] iVideoResamplers,
IVideoPicture[] inputIVideoPictures,
IVideoPicture[] outputIVideoPictures,
IStreamCoder inputIStreamCoder,
IStreamCoder[] outputIStreamCoders,
IContainer outputIContainer,
IStream[] outputIStreams,
ICodec.Type inputICodecType,
String outputURL,
int index)
throws Exception {
IStream outputIStream = outputIContainer.addNewStream(index);
outputIStreams[index] = outputIStream;
IStreamCoder outputIStreamCoder = outputIStream.getStreamCoder();
outputIStreamCoders[index] = outputIStreamCoder;
int bitRate = inputIStreamCoder.getBitRate();
if (_log.isInfoEnabled()) {
_log.info("Original video bitrate " + bitRate);
}
if (bitRate == 0) {
bitRate =
GetterUtil.getInteger(_videoBitRateMap.get(_outputVideoFormat), _VIDEO_BIT_RATE_DEFAULT);
} else if (bitRate > _VIDEO_BIT_RATE_MAX) {
bitRate = _VIDEO_BIT_RATE_MAX;
}
if (_log.isInfoEnabled()) {
_log.info("Modified video bitrate " + bitRate);
}
outputIStreamCoder.setBitRate(bitRate);
ICodec iCodec = ICodec.guessEncodingCodec(null, null, outputURL, null, inputICodecType);
if (_outputVideoFormat.equals("mp4")) {
iCodec = ICodec.findEncodingCodec(ICodec.ID.CODEC_ID_H264);
}
if (iCodec == null) {
throw new RuntimeException(
"Unable to determine " + inputICodecType + " encoder for " + outputURL);
}
outputIStreamCoder.setCodec(iCodec);
IRational iRational = inputIStreamCoder.getFrameRate();
if (_log.isInfoEnabled()) {
_log.info(
"Original frame rate " + iRational.getNumerator() + "/" + iRational.getDenominator());
}
if (_videoFrameRateMap.containsKey(_outputVideoFormat)) {
iRational = _videoFrameRateMap.get(_outputVideoFormat);
}
if (_log.isInfoEnabled()) {
_log.info(
"Modified frame rate " + iRational.getNumerator() + "/" + iRational.getDenominator());
}
outputIStreamCoder.setFrameRate(iRational);
if (inputIStreamCoder.getHeight() <= 0) {
throw new RuntimeException("Unable to determine height for " + _inputURL);
}
outputIStreamCoder.setHeight(_height);
outputIStreamCoder.setPixelType(Type.YUV420P);
outputIStreamCoder.setTimeBase(
IRational.make(iRational.getDenominator(), iRational.getNumerator()));
if (inputIStreamCoder.getWidth() <= 0) {
throw new RuntimeException("Unable to determine width for " + _inputURL);
}
outputIStreamCoder.setWidth(_width);
iVideoResamplers[index] =
createIVideoResampler(inputIStreamCoder, outputIStreamCoder, _height, _width);
inputIVideoPictures[index] =
IVideoPicture.make(
inputIStreamCoder.getPixelType(),
inputIStreamCoder.getWidth(),
inputIStreamCoder.getHeight());
outputIVideoPictures[index] =
IVideoPicture.make(
outputIStreamCoder.getPixelType(),
outputIStreamCoder.getWidth(),
outputIStreamCoder.getHeight());
ICodec.ID iCodecID = iCodec.getID();
if (iCodecID.equals(ICodec.ID.CODEC_ID_H264)) {
Configuration.configure(_ffpresetProperties, outputIStreamCoder);
}
}
/**
* The playSong method is responsible for opening a Xuggler container to play song at provided
* location.
*
* @param songURL The location of the song to play (local file path or url)
*/
public void playSong(String songURL) {
IContainer container = IContainer.make();
IContainerFormat format = IContainerFormat.make();
// Stream format must currently be mp3
format.setInputFormat("mp3");
// int s = container.setInputBufferLength(6270);
//
// if(s < 0){
// logger.warn("Input buffer was not set to desired length");
// }
// Probe size value must be >50 for some reason. Native libraries throw an exception if it's
// <50. Measured in bytes.
if (container.setProperty("probesize", 50) < 0) {
logger.warn("Probe size not set for input container.");
}
if (container.setProperty("analyzeduration", 1) < 0) {
logger.warn("Analyze duration not changed for input container.");
}
container.setFlag(IContainer.Flags.FLAG_NONBLOCK, true);
if (container.open(songURL, Type.READ, format, true, false) < 0) {
throw new IllegalArgumentException("stream not found");
}
int numStreams = container.getNumStreams();
// long streamRec = System.currentTimeMillis();
logger.info("Number of Audio streams detected {}", numStreams);
IPacket packet = IPacket.make();
IStream stream = null;
IStreamCoder audioCoder = null;
Map<Integer, IStreamCoder> knownStreams = new HashMap<Integer, IStreamCoder>();
long previousValue = 0;
while (container.readNextPacket(packet) >= 0 && alive) {
if (packet.isComplete()) {
if (knownStreams.get(packet.getStreamIndex()) == null) {
container.queryStreamMetaData(); // This method tends to take awhile when reading a stream
stream = container.getStream(packet.getStreamIndex());
knownStreams.put(packet.getStreamIndex(), stream.getStreamCoder());
audioCoder = knownStreams.get(packet.getStreamIndex());
audioCoder.setTimeBase(stream.getTimeBase());
}
if (!audioCoder.isOpen()) {
if (audioCoder.open(null, null) < 0) {
throw new RuntimeException("could not open audio decoder for container");
}
openSound(audioCoder);
// System.out.println("Opening sound " + (System.currentTimeMillis() - streamRec));
}
// System.err.println(audioCoder.getNumDroppedFrames());
int offset = 0;
IAudioSamples samples = IAudioSamples.make(1024, audioCoder.getChannels());
while (offset < packet.getSize() && alive) {
// Wait until the state is playing
while (state != PlayBack_State.PLAYING) {
if (state == PlayBack_State.TEARDOWN) {
break;
} else {
try {
synchronized (LOCK_OBJECT) {
// mLine.drain();
mLine.flush();
mLine.stop();
LOCK_OBJECT.wait();
mLine.start();
}
} catch (InterruptedException e) {
logger.error("", e);
}
}
}
int bytesDecoded = audioCoder.decodeAudio(samples, packet, offset);
if (bytesDecoded < 0) {
logger.warn("Error occurred decoding audio");
break;
// throw new RuntimeException("got error decoding audio");
}
offset += bytesDecoded;
if (samples.isComplete() && alive) {
playJavaSound(samples);
}
// Send the time stamp to the GUI for updating the progress bar
long newValue = (long) (packet.getTimeStamp() * packet.getTimeBase().getValue());
// Update GUI every second that the stream is playing
if (newValue > previousValue) {
callback.notifyGUISongProgress(newValue);
callback.isStreaming(true);
previousValue = newValue;
if (newValue == streamInfo.getSongDuration()) {
alive = false;
}
}
}
}
}
closeJavaSound();
if (audioCoder != null) {
audioCoder.close();
audioCoder = null;
}
if (container != null) {
container.close();
container = null;
}
}