| 1 | package kaka.cakelight; |
| 2 | |
| 3 | import java.io.*; |
| 4 | |
| 5 | public class FrameGrabber { |
| 6 | private Configuration config; |
| 7 | private File file; |
| 8 | private int bytesPerFrame; |
| 9 | private InputStream fileStream; |
| 10 | |
| 11 | private FrameGrabber() { |
| 12 | } |
| 13 | |
| 14 | public static FrameGrabber from(Configuration config) { |
| 15 | FrameGrabber fg = new FrameGrabber(); |
| 16 | fg.config = config; |
| 17 | fg.file = new File(config.video.device); |
| 18 | fg.bytesPerFrame = config.video.width * config.video.height * config.video.bpp; |
| 19 | return fg; |
| 20 | } |
| 21 | |
| 22 | public boolean prepare() { |
| 23 | try { |
| 24 | fileStream = new FileInputStream(file); |
| 25 | return true; |
| 26 | } catch (FileNotFoundException e) { |
| 27 | e.printStackTrace(); |
| 28 | return false; |
| 29 | } |
| 30 | } |
| 31 | |
| 32 | public Frame grabFrame() { |
| 33 | try { |
| 34 | byte[] data = new byte[bytesPerFrame]; |
| 35 | int count = fileStream.read(data); |
| 36 | System.out.println("count = " + count); |
| 37 | return Frame.of(data, config); |
| 38 | } catch (IOException e) { |
| 39 | e.printStackTrace(); |
| 40 | } |
| 41 | |
| 42 | return null; |
| 43 | } |
| 44 | |
| 45 | public void close() { |
| 46 | try { |
| 47 | fileStream.close(); |
| 48 | } catch (IOException e) { |
| 49 | e.printStackTrace(); |
| 50 | } |
| 51 | } |
| 52 | } |