Welcome to JCodec!

JCodec is an open source pure java implementation of video and audio codecs and formats.

Features	Roadmap
H.264 ( AVC ) Main profile decoder	MP3 decoder/encoder
Apple ProRes decoder and encoder	AAC encoder
H264 Baseline profile encoder	GPU acceleration on Android and desktop
Matroska ( MKV ) demuxer and muxer
MP4 ( ISO BMF, QuickTime ) demuxer/muxer and tools
MPEG 1/2 decoder ( supports interlace )
MPEG PS/TS demuxer
Java player applet
VP8 encoder
MXF demuxer

Get a single frame ( supports only AVC, H.264 in MP4, ISO BMF, Quicktime container ):

int frameNumber = 150;
BufferedImage frame = FrameGrab.getFrame(new File("filename.mp4"), frameNumber);
ImageIO.write(frame, "png", new File("frame_150.png"));
				

Get a sequence of frames ( supports only AVC, H.264 in MP4, ISO BMF, Quicktime container ):

double startSec = 51.632;
FrameGrab grab = new FrameGrab(new File("filename.mp4"));
grab.seek(startSec);
for (int i = 0; i < 100; i++) {
  ImageIO.write(grab.getFrame(), "png",
    new File(System.getProperty("user.home"), String.format("Desktop/frame_%08d.png", i)));
}
				

Encode a sequence of images into MP4 file (h.264 encoder will be used)

import org.jcodec.api.awt.SequenceEncoder;
...
SequenceEncoder enc = new SequenceEncoder(new File("filename"));
// GOP size will be supported in 0.2
// enc.getEncoder().setKeyInterval(25);
for(...) {
	BufferedImage image = ... // Obtain an image to encode
	enc.encodeImage(image);
}
enc.finish();
				

View full sample >>

Source code:

git clone git://github.com/jcodec/jcodec.git

Maven

<dependency>
  <groupId>org.jcodec</groupId>
  <artifactId>jcodec-javase</artifactId>
  <version>0.1.9</version>
</dependency>

Download (get both jars to access JavaSE image functions)

jcodec-0.1.9.jar	Jar	10/24/2014
jcodec-javase-0.1.9.jar	Jar	10/24/2014
jcodec-0.1.9.pom	POM	10/24/2014
jcodec-javase-0.1.9.pom	POM	10/24/2014

Android Downloads

jcodec-android-0.1.7.zip	JCodec for Android	09/14/2013
jcodec-samples-android-0.1.7.zip	Sample application source code	09/14/2013
jcodec-samples-0.1.7.apk	Sample application binary	09/14/2013