public boolean readNextImage() {
try {
while (demuxer.read(packet) >= 0) {
if (packet.getStreamIndex() == videoStreamId) {
int offset = 0;
int bytesRead = 0;
do {
bytesRead += videoDecoder.decode(picture, packet, offset);
if (picture.isComplete()) {
image3ByteBGR = converter.toImage(image3ByteBGR, picture);
frameIndex++;
this.presentationTimestamp = packet.getPts();
dirtyImageRGB = true;
return true;
}
offset += bytesRead;
} while (offset < packet.getSize());
}
}
} catch (Exception ex) {
throw new RuntimeException("Failed readNextImage", ex);
}
return false;
}
private void processConvert(Muxer muxer, Encoder encoder) throws Exception {
muxer.open(null, null);
MediaPacket packet = MediaPacket.make();
MediaAudio samples = beepSamples();
logger.info(samples.toString());
if (samples.getSampleRate() != encoder.getSampleRate()
|| samples.getFormat() != encoder.getSampleFormat()
|| samples.getChannelLayout() != encoder.getChannelLayout()) {
final MediaAudioResampler resampler =
MediaAudioResampler.make(
encoder.getChannelLayout(),
encoder.getSampleRate(),
encoder.getSampleFormat(),
samples.getChannelLayout(),
samples.getSampleRate(),
samples.getFormat());
resampler.open();
MediaAudio spl =
MediaAudio.make(
samples.getNumSamples(),
encoder.getSampleRate(),
encoder.getChannels(),
encoder.getChannelLayout(),
encoder.getSampleFormat());
resampler.resample(spl, samples);
logger.info(spl.toString());
logger.info("{}", spl.getNumSamples());
Assert.assertEquals(spl.getNumSamples(), samples.getNumSamples());
samples = spl;
}
logger.info(samples.toString());
// we only have one set of samples.
encoder.encodeAudio(packet, samples);
logger.info("{}", packet);
if (packet.isComplete()) muxer.write(packet, false);
// Flush the encoders
do {
encoder.encodeAudio(packet, null);
logger.info("{}", packet);
if (packet.isComplete()) {
muxer.write(packet, false);
}
} while (packet.isComplete());
muxer.close();
}
public void init() {
try {
this.demuxer = Demuxer.make();
demuxer.open(inputFile.getAbsolutePath(), null, false, true, null, null);
int numStreams = demuxer.getNumStreams();
videoStreamId = -1;
videoDecoder = null;
for (int i = 0; i < numStreams; i++) {
final DemuxerStream stream = demuxer.getStream(i);
final Decoder decoder = stream.getDecoder();
if (decoder != null && decoder.getCodecType() == MediaDescriptor.Type.MEDIA_VIDEO) {
videoStreamId = i;
videoDecoder = decoder;
// stop at the first one.
break;
}
}
if (videoStreamId == -1) {
throw new RuntimeException(
"could not find video stream in video file: '" + inputFile + "'");
}
videoDecoder.open(null, null);
int width = videoDecoder.getWidth();
int height = videoDecoder.getHeight();
this.dim = new Dim(width, height);
picture = MediaPicture.make(width, height, videoDecoder.getPixelFormat());
// converter to BGR_24 for java swing
converter =
MediaPictureConverterFactory.createConverter(
MediaPictureConverterFactory.HUMBLE_BGR_24, picture);
image3ByteBGR = null; // new BufferedImage(width, height, BufferedImage.TYPE_3BYTE_BGR);
imageRGB = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
imageRGBDataInts = ((DataBufferInt) imageRGB.getRaster().getDataBuffer()).getData();
packet = MediaPacket.make();
} catch (Exception ex) {
throw new RuntimeException("Failed init HumbleioPacketReader '" + inputFile + "'", ex);
}
}