+#[cfg(feature="demuxer_gdv")]
pub mod gdv;
+#[cfg(feature="demuxer_avi")]
+pub mod avi;
use std::fmt;
use std::rc::Rc;
use frame::*;
-//use std::collections::HashMap;
+use std::collections::HashMap;
use io::byteio::*;
-#[derive(Debug)]
+/// Possible stream types.
+#[derive(Debug,Clone,Copy)]
#[allow(dead_code)]
pub enum StreamType {
+ /// video stream
Video,
+ /// audio stream
Audio,
+ /// subtitles
Subtitles,
+ /// any data stream (or might be an unrecognized audio/video stream)
Data,
+ /// nonexistent stream
+ None,
}
impl fmt::Display for StreamType {
StreamType::Audio => write!(f, "Audio"),
StreamType::Subtitles => write!(f, "Subtitles"),
StreamType::Data => write!(f, "Data"),
+ StreamType::None => write!(f, "-"),
}
}
}
#[allow(dead_code)]
+#[derive(Clone)]
pub struct NAStream {
media_type: StreamType,
id: u32,
+ num: usize,
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) }
+ NAStream { media_type: mt, id: id, num: 0, info: Rc::new(info) }
}
pub fn get_id(&self) -> u32 { self.id }
+ pub fn get_num(&self) -> usize { self.num }
+ pub fn set_num(&mut self, num: usize) { self.num = num; }
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)
+ write!(f, "({}#{} - {})", self.media_type, self.id, self.info.get_properties())
}
}
}
pub fn get_stream(&self) -> Rc<NAStream> { self.stream.clone() }
pub fn get_pts(&self) -> Option<u64> { self.pts }
+ pub fn get_dts(&self) -> Option<u64> { self.dts }
+ pub fn get_duration(&self) -> Option<u64> { self.duration }
+ pub fn is_keyframe(&self) -> bool { self.keyframe }
pub fn get_buffer(&self) -> Rc<Vec<u8>> { self.buffer.clone() }
}
+impl Drop for NAPacket {
+ fn drop(&mut self) {}
+}
+
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());
type DemuxerResult<T> = Result<T, DemuxerError>;
-pub trait NADemuxer<'a> {
+pub trait Demux<'a> {
fn open(&mut self) -> DemuxerResult<()>;
+ fn get_num_streams(&self) -> usize;
+ fn get_stream(&self, idx: usize) -> Option<Rc<NAStream>>;
fn get_frame(&mut self) -> DemuxerResult<NAPacket>;
fn seek(&mut self, time: u64) -> DemuxerResult<()>;
}
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)
}
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 {
+pub struct Demuxer {
+ streams: Vec<Rc<NAStream>>,
+}
+
+impl Demuxer {
+ pub fn new() -> Self { Demuxer { streams: Vec::new() } }
+ pub fn add_stream(&mut self, stream: NAStream) -> Option<usize> {
+ let stream_num = self.streams.len();
+ let mut str = stream.clone();
+ str.set_num(stream_num);
+ self.streams.push(Rc::new(str));
+ Some(stream_num)
+ }
+ pub fn get_stream(&self, idx: usize) -> Option<Rc<NAStream>> {
+ if idx < self.streams.len() {
+ Some(self.streams[idx].clone())
+ } else {
+ None
+ }
+ }
+ pub fn get_stream_by_id(&self, id: u32) -> Option<Rc<NAStream>> {
+ for i in 0..self.streams.len() {
+ if self.streams[i].get_id() == id {
+ return Some(self.streams[i].clone());
+ }
+ }
+ None
+ }
+ pub fn get_num_streams(&self) -> usize { self.streams.len() }
}
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!()
+pub trait FrameFromPacket {
+ fn new_from_pkt(pkt: &NAPacket, info: Rc<NACodecInfo>) -> NAFrame;
+ fn fill_timestamps(&mut self, pkt: &NAPacket);
+}
+
+impl FrameFromPacket for NAFrame {
+ fn new_from_pkt(pkt: &NAPacket, info: Rc<NACodecInfo>) -> NAFrame {
+ NAFrame::new(pkt.pts, pkt.dts, pkt.duration, info, HashMap::new())
+ }
+ fn fill_timestamps(&mut self, pkt: &NAPacket) {
+ self.set_pts(pkt.pts);
+ self.set_dts(pkt.dts);
+ self.set_duration(pkt.duration);
+ }
+}
+
+///The structure used to create demuxers.
+pub trait DemuxerCreator {
+ /// Create new demuxer instance that will use `ByteReader` source as an input.
+ fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<Demux<'a> + 'a>;
+ /// Get the name of current demuxer creator.
+ fn get_name(&self) -> &'static str;
+}
+
+const DEMUXERS: &[&'static DemuxerCreator] = &[
+#[cfg(feature="demuxer_avi")]
+ &avi::AVIDemuxerCreator {},
+#[cfg(feature="demuxer_gdv")]
+ &gdv::GDVDemuxerCreator {},
+];
+
+pub fn find_demuxer(name: &str) -> Option<&DemuxerCreator> {
+ for &dmx in DEMUXERS {
+ if dmx.get_name() == name {
+ return Some(dmx);
+ }
}
+ None
}