在java中将视频拆分为图像帧

Question

I would like to read a video(MPEG,AVI or any popular format) using Java code and split it into a no of frames(Jpeg),For instance splitting a 2sec video into 48 images(2X24 frames/sec).Is this possible in java.On hindsight i would also like to know if it is possible to create a video using an array of images(reconstruction of the video after editing the individual images). Any help would be greatly appreciated.Thanks in advance.

Answer 1

You can use FFMPEG which is a open source C program build, and fastest video/audio processing library even used by most popular video sites.

use the exec method to call ffmpeg.

Answer 2

Easy with velvet-video :

Getting frames as images from a video file:

IVelvetVideoLib lib = VelvetVideoLib().getInstance();
try (IDemuxer demuxer = lib.demuxer(new File("/some/path/example.mp4"))) {
    IDecoderVideoStream videoStream = demuxer.videoStream(0);
    IFrame videoFrame;
    while ((videoFrame = videoStream.nextFrame()) != null) {
        BufferedImage image = videoFrame.image();
        // Use image as needed...
    }
}  

Composing a video from image array

BufferedImage[] images = ...
IVelvetVideoLib lib = VelvetVideoLib().getInstance();
try (IMuxer muxer = lib.muxer("matroska")                    // specify you format
    .video(lib.videoEncoder("libaom-av1").bitrate(800000))   // specify you codec
    .build(new File("/some/path/output.mkv"))) {
         IEncoderVideoStream videoStream = muxer.videoStream(0);
         for (BufferedImage image : images) {
             videoStream.encode(image);
         }
}    

Disclaimer: I'm the author of velvet-video

Answer 3

您可以使用 JMF (http://www.oracle.com/technetwork/java/javase/tech/index-jsp-140239.html)。