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use std::collections::HashMap;
use std::rc::Rc;
#[allow(dead_code)]
#[derive(Copy,Clone)]
pub struct NASoniton {
bits: u8,
is_be: bool,
packed: bool,
planar: bool,
float: bool,
signed: bool,
}
#[allow(dead_code)]
pub const SND_U8_FORMAT: NASoniton = NASoniton { bits: 8, is_be: false, packed: false, planar: false, float: false, signed: false };
#[allow(dead_code)]
pub const SND_S16_FORMAT: NASoniton = NASoniton { bits: 16, is_be: false, packed: false, planar: false, float: false, signed: true };
#[allow(dead_code)]
#[derive(Clone,Copy)]
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,Clone,Copy)]
pub enum ColorModel {
RGB,
YUV,
CMYK,
HSV,
LAB,
}
#[allow(dead_code)]
#[derive(Clone,Copy)]
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)]
#[derive(Clone,Copy)]
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)]
#[derive(Clone,Copy)]
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 }
}
}
#[derive(Clone,Copy)]
pub enum NACodecTypeInfo {
None,
Audio(NAAudioInfo),
Video(NAVideoInfo),
}
#[allow(dead_code)]
pub struct NABuffer<'a> {
id: u64,
data: &'a mut [u8],
}
#[allow(dead_code)]
#[derive(Clone)]
pub struct NACodecInfo {
properties: NACodecTypeInfo,
extradata: Option<Rc<Vec<u8>>>,
}
impl NACodecInfo {
pub fn new(p: NACodecTypeInfo, edata: Option<Vec<u8>>) -> Self {
let extradata = match edata {
None => None,
Some(vec) => Some(Rc::new(vec)),
};
NACodecInfo { properties: p, extradata: extradata }
}
pub fn get_properties(&self) -> NACodecTypeInfo { self.properties }
pub fn get_extradata(&self) -> Option<Rc<Vec<u8>>> {
if let Some(ref vec) = self.extradata { return Some(vec.clone()); }
None
}
}
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,
options: HashMap<String, NAValue<'a>>,
}
#[allow(dead_code)]
pub struct NACodecContext<'a> {
info: &'a NACodecInfo,
}
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