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pub mod gdv;
use std::fmt;
use std::rc::Rc;
use frame::*;
//use std::collections::HashMap;
use io::byteio::*;
#[derive(Debug)]
#[allow(dead_code)]
pub enum StreamType {
Video,
Audio,
Subtitles,
Data,
}
impl fmt::Display for StreamType {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match *self {
StreamType::Video => write!(f, "Video"),
StreamType::Audio => write!(f, "Audio"),
StreamType::Subtitles => write!(f, "Subtitles"),
StreamType::Data => write!(f, "Data"),
}
}
}
#[allow(dead_code)]
pub struct NAStream {
media_type: StreamType,
id: u32,
info: Rc<NACodecInfo>,
}
impl NAStream {
pub fn new(mt: StreamType, id: u32, info: NACodecInfo) -> Self {
NAStream { media_type: mt, id: id, info: Rc::new(info) }
}
pub fn get_id(&self) -> u32 { self.id }
pub fn get_info(&self) -> Rc<NACodecInfo> { self.info.clone() }
}
impl fmt::Display for NAStream {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "({}#{})", self.media_type, self.id)
}
}
#[allow(dead_code)]
pub struct NAPacket {
stream: Rc<NAStream>,
pts: Option<u64>,
dts: Option<u64>,
duration: Option<u64>,
buffer: Rc<Vec<u8>>,
keyframe: bool,
// options: HashMap<String, NAValue<'a>>,
}
impl NAPacket {
pub fn new(str: Rc<NAStream>, pts: Option<u64>, dts: Option<u64>, dur: Option<u64>, kf: bool, vec: Vec<u8>) -> Self {
// let mut vec: Vec<u8> = Vec::new();
// vec.resize(size, 0);
NAPacket { stream: str, pts: pts, dts: dts, duration: dur, keyframe: kf, buffer: Rc::new(vec) }
}
pub fn get_stream(&self) -> Rc<NAStream> { self.stream.clone() }
pub fn get_pts(&self) -> Option<u64> { self.pts }
pub fn get_buffer(&self) -> Rc<Vec<u8>> { self.buffer.clone() }
}
impl fmt::Display for NAPacket {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
let mut foo = format!("[pkt for {} size {}", self.stream, self.buffer.len());
if let Some(pts) = self.pts { foo = format!("{} pts {}", foo, pts); }
if let Some(dts) = self.dts { foo = format!("{} dts {}", foo, dts); }
if let Some(dur) = self.duration { foo = format!("{} duration {}", foo, dur); }
if self.keyframe { foo = format!("{} kf", foo); }
foo = foo + "]";
write!(f, "{}", foo)
}
}
#[derive(Debug)]
#[allow(dead_code)]
pub enum DemuxerError {
EOF,
NoSuchInput,
InvalidData,
IOError,
NotImplemented,
MemoryError,
}
type DemuxerResult<T> = Result<T, DemuxerError>;
pub trait NADemuxer<'a> {
fn open(&mut self) -> DemuxerResult<()>;
fn get_frame(&mut self) -> DemuxerResult<NAPacket>;
fn seek(&mut self, time: u64) -> DemuxerResult<()>;
}
pub trait NAPacketReader {
fn read_packet(&mut self, str: Rc<NAStream>, pts: Option<u64>, dts: Option<u64>, dur: Option<u64>, keyframe: bool, size: usize) -> DemuxerResult<NAPacket>;
fn fill_packet(&mut self, pkt: &mut NAPacket) -> DemuxerResult<()>;
}
impl<'a> NAPacketReader for ByteReader<'a> {
fn read_packet(&mut self, str: Rc<NAStream>, pts: Option<u64>, dts: Option<u64>, dur: Option<u64>, kf: bool, size: usize) -> DemuxerResult<NAPacket> {
let mut buf: Vec<u8> = Vec::with_capacity(size);
if buf.capacity() < size { return Err(DemuxerError::MemoryError); }
buf.resize(size, 0);
let res = self.read_buf(buf.as_mut_slice());
if let Err(_) = res { return Err(DemuxerError::IOError); }
if res.unwrap() < buf.len() { return Err(DemuxerError::IOError); }
let pkt = NAPacket::new(str, pts, dts, dur, kf, buf);
Ok(pkt)
}
fn fill_packet(&mut self, pkt: &mut NAPacket) -> DemuxerResult<()> {
let mut refbuf = pkt.get_buffer();
let mut buf = Rc::make_mut(&mut refbuf);
let res = self.read_buf(buf.as_mut_slice());
if let Err(_) = res { return Err(DemuxerError::IOError); }
if res.unwrap() < buf.len() { return Err(DemuxerError::IOError); }
Ok(())
}
}
pub struct NADemuxerBuilder {
}
impl From<ByteIOError> for DemuxerError {
fn from(_: ByteIOError) -> Self { DemuxerError::IOError }
}
impl NADemuxerBuilder {
#[allow(unused_variables)]
pub fn create_demuxer(name: &str, url: &str) -> DemuxerResult<Box<NADemuxer<'static>>> {
unimplemented!()
}
}
|
