package FFMPEG;

import Common.JsonObject;

import java.io.IOException;
import java.nio.file.Path;

@VideoStreamDirectory(manifestExtension = "m3u8")
public class HLSStream extends VideoStream
{
    public HLSStream()
    {
        super("live");
    }

    @Override
    public Process createStream(Path dir) throws IOException
    {
        return new ProcessBuilder(
                /**"raspivid",
                "-n",
                "-w", "720",
                "-h", "405",
                "-fps", "25",
                "-vf",
                "-t", "86400000",
                "-b", "1800000",
                "-ih",
                "-o", "-",
                "|",**/
                "ffmpeg",
                "-y",                                                       // Overwrite output files without asking
                "-f", "v4l2",                                               // Input format
                "-video_size", "1280x720",                                  // Input video size
                "-framerate", "25",                                         // Input framerate
                "-i", "/dev/video0",                                        // Input framerate
                "-vcodec", "h264_omx",                                      // Encoding codec
                "-keyint_min", "0",                                         // Allow every frame to be a key frame
                "-g", "100",                                                // But at most every 100 frames will be a key frame
                "-map", "0:v",                                              // Map input stream 0 to the video of this stream
                "-b:v", "1000k",
                "-hls_time", this.getSegmentLengthMilli().toString(),       // set time of each segment
                //"-hls_list_size", "0",                                    // keep all files in playlist
                "-f", "hls",                                                // format hls
                dir.resolve(this.getManifest()).toString()                  // playlist file
        ).inheritIO().start();
    }

    @Override
    public Integer getSegmentLengthMilli()
    {
        return 4000;
    }
}