-#[cfg(feature="demuxer_gdv")]
-pub mod gdv;
-#[cfg(feature="demuxer_avi")]
-pub mod avi;
-
-use std::rc::Rc;
-use frame::*;
-use io::byteio::*;
-
-#[derive(Debug,Clone,Copy,PartialEq)]
-#[allow(dead_code)]
-pub enum DemuxerError {
- EOF,
- NoSuchInput,
- InvalidData,
- IOError,
- NotImplemented,
- MemoryError,
-}
-
-type DemuxerResult<T> = Result<T, DemuxerError>;
-
-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<()>;
-}
-
-pub trait NAPacketReader {
- fn read_packet(&mut self, str: Rc<NAStream>, ts: NATimeInfo, 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>, ts: NATimeInfo, 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); }
- let pkt = NAPacket::new(str, ts, 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); }
- Ok(())
- }
-}
-
-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
- }
- }
- #[allow(dead_code)]
- 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 }
-}
-
-///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
-}