-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!()
- }
-}
+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 DemuxCore<'a> {
+ fn open(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()>;
+ fn get_frame(&mut self, strmgr: &mut StreamManager) -> 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 buf = Rc::make_mut(&mut refbuf);
+ let res = self.read_buf(buf.as_mut_slice());
+ if let Err(_) = res { return Err(DemuxerError::IOError); }
+ Ok(())
+ }
+}
+
+pub struct StreamManager {
+ streams: Vec<Rc<NAStream>>,
+ ignored: Vec<bool>,
+ no_ign: bool,
+}
+
+impl StreamManager {
+ pub fn new() -> Self {
+ StreamManager {
+ streams: Vec::new(),
+ ignored: Vec::new(),
+ no_ign: true,
+ }
+ }
+ pub fn iter(&self) -> StreamIter { StreamIter::new(&self.streams) }
+
+ 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));
+ self.ignored.push(false);
+ 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() }
+ pub fn is_ignored(&self, idx: usize) -> bool {
+ if self.no_ign {
+ true
+ } else if idx < self.ignored.len() {
+ self.ignored[idx]
+ } else {
+ false
+ }
+ }
+ pub fn is_ignored_id(&self, id: u32) -> bool {
+ for i in 0..self.streams.len() {
+ if self.streams[i].get_id() == id {
+ return self.ignored[i];
+ }
+ }
+ false
+ }
+ pub fn set_ignored(&mut self, idx: usize) {
+ if idx < self.ignored.len() {
+ self.ignored[idx] = true;
+ self.no_ign = false;
+ }
+ }
+ pub fn set_unignored(&mut self, idx: usize) {
+ if idx < self.ignored.len() {
+ self.ignored[idx] = false;
+ }
+ }
+}
+
+pub struct StreamIter<'a> {
+ streams: &'a Vec<Rc<NAStream>>,
+ pos: usize,
+}
+
+impl<'a> StreamIter<'a> {
+ pub fn new(streams: &'a Vec<Rc<NAStream>>) -> Self {
+ StreamIter { streams: streams, pos: 0 }
+ }
+}
+
+impl<'a> Iterator for StreamIter<'a> {
+ type Item = Rc<NAStream>;
+
+ fn next(&mut self) -> Option<Self::Item> {
+ if self.pos >= self.streams.len() { return None; }
+ let ret = self.streams[self.pos].clone();
+ self.pos += 1;
+ Some(ret)
+ }
+}
+
+pub struct Demuxer<'a> {
+ dmx: Box<DemuxCore<'a> + 'a>,
+ streams: StreamManager,
+}
+
+impl<'a> Demuxer<'a> {
+ fn new(dmx: Box<DemuxCore<'a> + 'a>, str: StreamManager) -> Self {
+ Demuxer {
+ dmx: dmx,
+ streams: str,
+ }
+ }
+ pub fn get_stream(&self, idx: usize) -> Option<Rc<NAStream>> {
+ self.streams.get_stream(idx)
+ }
+ pub fn get_stream_by_id(&self, id: u32) -> Option<Rc<NAStream>> {
+ self.streams.get_stream_by_id(id)
+ }
+ pub fn get_num_streams(&self) -> usize {
+ self.streams.get_num_streams()
+ }
+ pub fn get_streams(&self) -> StreamIter {
+ self.streams.iter()
+ }
+ pub fn is_ignored_stream(&self, idx: usize) -> bool {
+ self.streams.is_ignored(idx)
+ }
+ pub fn set_ignored_stream(&mut self, idx: usize) {
+ self.streams.set_ignored(idx)
+ }
+ pub fn set_unignored_stream(&mut self, idx: usize) {
+ self.streams.set_unignored(idx)
+ }
+
+ pub fn get_frame(&mut self) -> DemuxerResult<NAPacket> {
+ loop {
+ let res = self.dmx.get_frame(&mut self.streams);
+ if self.streams.no_ign || res.is_err() { return res; }
+ let res = res.unwrap();
+ let idx = res.get_stream().get_num();
+ if !self.is_ignored_stream(idx) {
+ return Ok(res);
+ }
+ }
+ }
+ pub fn seek(&mut self, time: u64) -> DemuxerResult<()> {
+ self.dmx.seek(time)
+ }
+}
+
+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<DemuxCore<'a> + 'a>;
+ /// Get the name of current demuxer creator.
+ fn get_name(&self) -> &'static str;
+}
+
+macro_rules! validate {
+ ($a:expr) => { if !$a { return Err(DemuxerError::InvalidData); } };
+}
+
+#[cfg(feature="demuxer_gdv")]
+mod gdv;
+#[cfg(feature="demuxer_avi")]
+mod avi;
+#[cfg(feature="demuxer_real")]
+mod realmedia;
+
+
+const DEMUXERS: &[&'static DemuxerCreator] = &[
+#[cfg(feature="demuxer_avi")]
+ &avi::AVIDemuxerCreator {},
+#[cfg(feature="demuxer_gdv")]
+ &gdv::GDVDemuxerCreator {},
+#[cfg(feature="demuxer_real")]
+ &realmedia::RealMediaDemuxerCreator {},
+//#[cfg(feature="demuxer_real")]
+// &realmedia::RealAudioDemuxerCreator {},
+//#[cfg(feature="demuxer_real")]
+// &realmedia::RealIVRDemuxerCreator {},
+];
+
+pub fn find_demuxer(name: &str) -> Option<&DemuxerCreator> {
+ for &dmx in DEMUXERS {
+ if dmx.get_name() == name {
+ return Some(dmx);
+ }
+ }
+ None
+}
+
+pub fn create_demuxer<'a>(dmxcr: &DemuxerCreator, br: &'a mut ByteReader<'a>) -> DemuxerResult<Demuxer<'a>> {
+ let mut dmx = dmxcr.new_demuxer(br);
+ let mut str = StreamManager::new();
+ dmx.open(&mut str)?;
+ Ok(Demuxer::new(dmx, str))
+}
projects / nihav.git / blobdiff