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Andrey Chernykh andreychernih

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View net_http.rb
require 'net/http'
def download_net_http(urls, thread_count)
queue = Queue.new
urls.map { |url| queue << url }
threads = thread_count.times.map do
Thread.new do
Net::HTTP.start('our-s3-bucket.s3.amazonaws.com', 80) do |http|
while !queue.empty? && url = queue.pop
View Mp4ParserAudioMuxer.java
public class Mp4ParserAudioMuxer implements AudioMuxer {
@Override
public boolean mux(String videoFile, String audioFile, String outputFile) {
Movie video;
try {
video = new MovieCreator().build(videoFile);
} catch (RuntimeException e) {
e.printStackTrace();
return false;
} catch (IOException e) {
View JcodecMp4VideoMuxer.java
public class JcodecMp4VideoMuxer implements VideoMuxer {
private FileChannelWrapper mChannelWrapper;
private MP4Muxer mMp4Muxer;
private FramesMP4MuxerTrack mMp4Track;
private ArrayList<ByteBuffer> mSpsList;
private ArrayList<ByteBuffer> mPpsList;
@Override
public boolean initialize() {
mSpsList = new ArrayList<ByteBuffer>();
View ColorConversions.java
public static byte[] NV21toYUV420Planar(byte[] input, byte[] output, int width, int height) {
final int frameSize = width * height;
final int qFrameSize = frameSize/4;
System.arraycopy(input, 0, output, 0, frameSize); // Y
byte v, u;
for (int i = 0; i < qFrameSize; i++) {
v = input[frameSize + i*2];
View VideoEncoder.java
public interface VideoEncoder {
boolean prepare(Context context);
boolean sendFrame(@NotNull byte[] frame);
Frame receiveFrame() throws VideoEncoderError;
}
View MediaCodecFormatSelector.java
public class MediaCodecFormatSelector {
public static MediaCodecFormatSelector forDevice() {
String deviceName = Device.getDeviceName();
if (deviceName.equalsIgnoreCase("samsung gt-i9300")
&& isBadMediaCodecSupport()) {
return new SamsungGalaxyS3MediaCodecFormatSelector();
else if (isBadMediaCodecSupport() && isAffectedDevice(deviceName)) {
return new NoMediaCodecSupportFormatSelector();
} else {
return new MediaCodecFormatSelector();
@andreychernih
andreychernih / MediaCodecConfiguration.java
Created Jun 28, 2014
MediaCodec configuration sample
View MediaCodecConfiguration.java
if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN
&& MediaCodecFormatSelector.forDevice().isSupported()) {
binder.bind(VideoEncoder.class).to(MediaCodecVideoEncoder.class);
} else {
binder.bind(VideoEncoder.class).to(JpegVideoEncoder.class);
}
View MediaRecorderExample.java
MediaRecorder mediaRecorder = new MediaRecorder();
CamcorderProfile profile = CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH);
profile.videoFrameWidth = 1280;
profile.videoFrameHeight = 720;
mediaRecorder.setCamera(Camera.open());
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
mediaRecorder.setProfile(profile);
@andreychernih
andreychernih / BufferedWritableFileByteChannel.java
Last active Aug 29, 2015
Buffered WritableByteChannel implementation
View BufferedWritableFileByteChannel.java
private static class BufferedWritableFileByteChannel implements WritableByteChannel {
private static final int BUFFER_CAPACITY = 1000000;
private boolean isOpen = true;
private final OutputStream outputStream;
private final ByteBuffer byteBuffer;
private final byte[] rawBuffer = new byte[BUFFER_CAPACITY];
private BufferedWritableFileByteChannel(OutputStream outputStream) {
this.outputStream = outputStream;
@andreychernih
andreychernih / Gemfile
Created Jun 15, 2014
Import delicious bookmarks from 1 user to another
View Gemfile
source 'https://rubygems.org'
gem 'delicious', '~> 1.0.0'
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