TODO

[nihav.git] / src / frame.rs

use std::collections::HashMap;

#[allow(dead_code)]
pub struct NASoniton {
    bits:       u8,
    is_be:      bool,
    packed:     bool,
    planar:     bool,
    float:      bool,
}

#[allow(dead_code)]
pub const SND_U8_FORMAT: NASoniton = NASoniton { bits: 8, is_be: false, packed: false, planar: false, float: false };
#[allow(dead_code)]
pub const SND_S16_FORMAT: NASoniton = NASoniton { bits: 16, is_be: false, packed: false, planar: false, float: false };

#[allow(dead_code)]
pub struct NAAudioInfo {
    sample_rate: u32,
    channels:    u8,
    format:      NASoniton,
    block_len:   usize,
}

impl NAAudioInfo {
    pub fn new(sr: u32, ch: u8, fmt: NASoniton, bl: usize) -> Self {
        NAAudioInfo { sample_rate: sr, channels: ch, format: fmt, block_len: bl }
    }
}

#[derive(Debug)]
pub enum ColorModel {
    RGB,
    YUV,
    CMYK,
    HSV,
    LAB,
}

#[allow(dead_code)]
pub struct NAPixelChromaton {
    h_ss:           u8,
    v_ss:           u8,
    is_packed:      bool,
    depth:          u8,
    shift:          u8,
    comp_offs:      u8,
    next_elem:      u8,
}

#[allow(dead_code)]
pub struct NAPixelFormaton {
    model:      ColorModel,
    components: u8,
    comp_info:  [Option<NAPixelChromaton>; 5],
    elem_size:  u8,
    has_alpha:  bool,
    is_palette: bool,
}

macro_rules! chromaton {
    ($hs: expr, $vs: expr, $pck: expr, $d: expr, $sh: expr, $co: expr, $ne: expr) => ({
        Some(NAPixelChromaton{ h_ss: $hs, v_ss: $vs, is_packed: $pck, depth: $d, shift: $sh, comp_offs: $co, next_elem: $ne })
    });
    (yuv8; $hs: expr, $vs: expr, $co: expr) => ({
        Some(NAPixelChromaton{ h_ss: $hs, v_ss: $vs, is_packed: false, depth: 8, shift: 0, comp_offs: $co, next_elem: 1 })
    });
    (pal8; $co: expr) => ({
        Some(NAPixelChromaton{ h_ss: 0, v_ss: 0, is_packed: true, depth: 8, shift: 0, comp_offs: $co, next_elem: 3 })
    });
}

#[allow(dead_code)]
pub const YUV420_FORMAT: NAPixelFormaton = NAPixelFormaton { model: ColorModel::YUV, components: 3,
                                        comp_info: [
                                            chromaton!(0, 0, false, 8, 0, 0, 1),
                                            chromaton!(yuv8; 1, 1, 1),
                                            chromaton!(yuv8; 1, 1, 2),
                                            None, None],
                                        elem_size: 0, has_alpha: false, is_palette: false };

#[allow(dead_code)]
pub const PAL8_FORMAT: NAPixelFormaton = NAPixelFormaton { model: ColorModel::RGB, components: 3,
                                        comp_info: [
                                            chromaton!(pal8; 0),
                                            chromaton!(pal8; 1),
                                            chromaton!(pal8; 2),
                                            None, None],
                                        elem_size: 1, has_alpha: false, is_palette: true };


#[allow(dead_code)]
pub struct NAVideoInfo {
    width:      u32,
    height:     u32,
    flipped:    bool,
    format:     NAPixelFormaton,
}

impl NAVideoInfo {
    pub fn new(w: u32, h: u32, flip: bool, fmt: NAPixelFormaton) -> Self {
        NAVideoInfo { width: w, height: h, flipped: flip, format: fmt }
    }
}

pub enum NACodecTypeInfo {
    None,
    Audio(NAAudioInfo),
    Video(NAVideoInfo),
}

#[allow(dead_code)]
pub struct NABuffer<'a> {
    id:   u64,
    data: &'a mut [u8],
}

#[allow(dead_code)]
pub struct NACodecInfo<'a> {
    properties: NACodecTypeInfo,
    extradata:  Option<&'a[u8]>,
}

impl<'a> NACodecInfo<'a> {
    pub fn new(p: NACodecTypeInfo, edata: Option<&'a[u8]>) -> Self {
        NACodecInfo { properties: p, extradata: edata }
    }
}

pub trait NABufferAllocator {
    fn alloc_buf(info: &NACodecInfo) -> NABuffer<'static>;
}

#[derive(Debug)]
pub enum NAValue<'a> {
    None,
    Int(i32),
    Long(i64),
    String(String),
    Data(&'a [u8]),
}

#[allow(dead_code)]
pub struct NAFrame<'a> {
    pts:            Option<u64>,
    dts:            Option<u64>,
    duration:       Option<u64>,
    buffer:         &'a mut NABuffer<'a>,
    info:           &'a NACodecInfo<'a>,
    options:        HashMap<String, NAValue<'a>>,
}

#[allow(dead_code)]
pub struct NACodecContext<'a> {
    info:           &'a NACodecInfo<'a>,
}