common.rs 6.46 KB
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use clap::{App, Arg};
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use rav1e::*;
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use std::fs::File;
use std::io;
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use std::io::prelude::*;
use std::slice;
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use std::sync::Arc;
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use y4m;
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pub struct EncoderIO {
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  pub input: Box<dyn Read>,
  pub output: Box<dyn Write>,
  pub rec: Option<Box<dyn Write>>
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}

pub trait FromCli {
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  fn from_cli() -> (EncoderIO, EncoderConfig);
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}

impl FromCli for EncoderConfig {
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  fn from_cli() -> (EncoderIO, EncoderConfig) {
    let matches = App::new("rav1e")
      .version("0.1.0")
      .about("AV1 video encoder")
      .arg(
        Arg::with_name("INPUT")
          .help("Uncompressed YUV4MPEG2 video input")
          .required(true)
          .index(1)
      )
      .arg(
        Arg::with_name("OUTPUT")
          .help("Compressed AV1 in IVF video output")
          .short("o")
          .long("output")
          .required(true)
          .takes_value(true)
      )
      .arg(Arg::with_name("RECONSTRUCTION").short("r").takes_value(true))
      .arg(
        Arg::with_name("LIMIT")
          .help("Maximum number of frames to encode")
          .short("l")
          .long("limit")
          .takes_value(true)
          .default_value("0")
      )
      .arg(
        Arg::with_name("QP")
          .help("Quantizer (0-255)")
          .long("quantizer")
          .takes_value(true)
          .default_value("100")
      )
      .arg(
        Arg::with_name("SPEED")
          .help("Speed level (0(slow)-10(fast))")
          .short("s")
          .long("speed")
          .takes_value(true)
          .default_value("3")
      )
      .arg(
        Arg::with_name("TUNE")
          .help("Quality tuning (Will enforce partition sizes >= 8x8)")
          .long("tune")
          .possible_values(&Tune::variants())
          .default_value("psnr")
          .case_insensitive(true)
      )
      .get_matches();

    let io = EncoderIO {
      input: match matches.value_of("INPUT").unwrap() {
        "-" => Box::new(io::stdin()) as Box<dyn Read>,
        f => Box::new(File::open(&f).unwrap()) as Box<dyn Read>
      },
      output: match matches.value_of("OUTPUT").unwrap() {
        "-" => Box::new(io::stdout()) as Box<dyn Write>,
        f => Box::new(File::create(&f).unwrap()) as Box<dyn Write>
      },
      rec: matches
        .value_of("RECONSTRUCTION")
        .map(|f| Box::new(File::create(&f).unwrap()) as Box<dyn Write>)
    };

    let config = EncoderConfig {
      limit: matches.value_of("LIMIT").unwrap().parse().unwrap(),
      quantizer: matches.value_of("QP").unwrap().parse().unwrap(),
      speed: matches.value_of("SPEED").unwrap().parse().unwrap(),
      tune: matches.value_of("TUNE").unwrap().parse().unwrap()
    };

    // Validate arguments
    if config.quantizer == 0 {
      unimplemented!();
    } else if config.quantizer > 255 || config.speed > 10 {
      panic!("argument out of range");
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    }
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    (io, config)
  }
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}
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/// Encode and write a frame.
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pub fn process_frame(
  ctx: &mut Context, output_file: &mut dyn Write,
  y4m_dec: &mut y4m::Decoder<'_, Box<dyn Read>>,
  y4m_enc: Option<&mut y4m::Encoder<'_, Box<dyn Write>>>
) -> bool {
  unsafe {
    av1_rtcd();
    aom_dsp_rtcd();
  }
  let width = y4m_dec.get_width();
  let height = y4m_dec.get_height();
  let y4m_bits = y4m_dec.get_bit_depth();
  let y4m_bytes = y4m_dec.get_bytes_per_sample();
  let bit_depth = y4m_dec.get_colorspace().get_bit_depth();

  match y4m_dec.read_frame() {
    Ok(y4m_frame) => {
      let y4m_y = y4m_frame.get_y_plane();
      let y4m_u = y4m_frame.get_u_plane();
      let y4m_v = y4m_frame.get_v_plane();
      let mut input = ctx.new_frame();
      {
        let input = Arc::get_mut(&mut input).unwrap();
        input.planes[0].copy_from_raw_u8(&y4m_y, width * y4m_bytes, y4m_bytes);
        input.planes[1].copy_from_raw_u8(
          &y4m_u,
          width * y4m_bytes / 2,
          y4m_bytes
        );
        input.planes[2].copy_from_raw_u8(
          &y4m_v,
          width * y4m_bytes / 2,
          y4m_bytes
        );
      }

      match y4m_bits {
        8 | 10 | 12 => {}
        _ => panic!("unknown input bit depth!")
      }

      let _ = ctx.send_frame(input);
      let pkt = ctx.receive_packet().unwrap();
      eprintln!("{}", pkt);
      write_ivf_frame(output_file, pkt.number as u64, pkt.data.as_ref());
      if let Some(mut y4m_enc) = y4m_enc {
        let pitch_y = if bit_depth > 8 { width * 2 } else { width };
        let pitch_uv = pitch_y / 2;

        let (mut rec_y, mut rec_u, mut rec_v) = (
          vec![128u8; pitch_y * height],
          vec![128u8; pitch_uv * (height / 2)],
          vec![128u8; pitch_uv * (height / 2)]
        );

        let (stride_y, stride_u, stride_v) = (
          pkt.rec.planes[0].cfg.stride,
          pkt.rec.planes[1].cfg.stride,
          pkt.rec.planes[2].cfg.stride
        );

        for (line, line_out) in pkt.rec.planes[0]
          .data_origin()
          .chunks(stride_y)
          .zip(rec_y.chunks_mut(pitch_y))
        {
          if bit_depth > 8 {
            unsafe {
              line_out.copy_from_slice(slice::from_raw_parts::<u8>(
                line.as_ptr() as (*const u8),
                pitch_y
              ));
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            }
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          } else {
            line_out.copy_from_slice(
              &line.iter().map(|&v| v as u8).collect::<Vec<u8>>()[..pitch_y]
            );
          }
        }
        for (line, line_out) in pkt.rec.planes[1]
          .data_origin()
          .chunks(stride_u)
          .zip(rec_u.chunks_mut(pitch_uv))
        {
          if bit_depth > 8 {
            unsafe {
              line_out.copy_from_slice(slice::from_raw_parts::<u8>(
                line.as_ptr() as (*const u8),
                pitch_uv
              ));
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            }
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          } else {
            line_out.copy_from_slice(
              &line.iter().map(|&v| v as u8).collect::<Vec<u8>>()[..pitch_uv]
            );
          }
        }
        for (line, line_out) in pkt.rec.planes[2]
          .data_origin()
          .chunks(stride_v)
          .zip(rec_v.chunks_mut(pitch_uv))
        {
          if bit_depth > 8 {
            unsafe {
              line_out.copy_from_slice(slice::from_raw_parts::<u8>(
                line.as_ptr() as (*const u8),
                pitch_uv
              ));
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            }
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          } else {
            line_out.copy_from_slice(
              &line.iter().map(|&v| v as u8).collect::<Vec<u8>>()[..pitch_uv]
            );
          }
        }

        let rec_frame = y4m::Frame::new([&rec_y, &rec_u, &rec_v], None);
        y4m_enc.write_frame(&rec_frame).unwrap();
      }
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      true
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    }
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    _ => false
  }
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}