gistfile1.txt

public class JafTest {
    public static void main(String[] args) throws InterruptedException {
        FFmpeg.atPath()
                .addInput(UrlInput.fromUrl("这里是flv地址"))
                .setLogLevel(LogLevel.INFO)
                .setOverwriteOutput(true)
                .addOutput(UrlOutput.toUrl("/tmp/test.flv"))
                .addOutput(FrameOutput
                        .withConsumer(
                                new FrameConsumer() {
                                    private long num = 1;

                                    @Override
                                    public void consumeStreams(List<Stream> streams) {
                                        // All stream type except video are disabled. just ignore
                                    }

                                    @Override
                                    public void consume(Frame frame) {
                                        // End of Stream
                                        if (frame == null) {
                                            return;
                                        }

                                        try {
                                            String filename = "/tmp/"+new SimpleDateFormat("HH:mm:ss").format(new Date())+".png";
                                            ImageIO.write(frame.getImage(), "png", new File(filename));
                                        } catch (Exception e) {
                                            e.printStackTrace();
                                        }
                                    }
                                }
                        )
                        // 1 frame every 10 seconds
                        .setFrameRate(0.1)
                        // Disable all streams except video
                        .disableStream(StreamType.AUDIO)
                        .disableStream(StreamType.SUBTITLE)
                        .disableStream(StreamType.DATA)
                )
                .execute();
        Thread.sleep(1000000L);
    }
}