[nihav-encoder.git] / src / demux.rs

use std::io::SeekFrom;
use nihav_core::codecs::*;
use nihav_core::demuxers::*;
use nihav_core::muxers::*;
use nihav_registry::detect;
use nihav_core::io::byteio::ByteReader;
use nihav_allstuff::*;
use crate::null::*;
use crate::imgseq::*;
use crate::{SBBox, SelfBorrow};

pub struct FullRegister {
    pub dmx_reg:    RegisteredDemuxers,
    pub rdmx_reg:   RegisteredRawDemuxers,
    pub pkt_reg:    RegisteredPacketisers,
    pub dec_reg:    RegisteredDecoders,
    pub enc_reg:    RegisteredEncoders,
    pub mux_reg:    RegisteredMuxers,
}

impl FullRegister {
    pub fn new() -> Self {
        let mut dmx_reg = RegisteredDemuxers::new();
        nihav_register_all_demuxers(&mut dmx_reg);
        let mut rdmx_reg = RegisteredRawDemuxers::new();
        nihav_register_all_raw_demuxers(&mut rdmx_reg);
        let mut dec_reg = RegisteredDecoders::new();
        nihav_register_all_decoders(&mut dec_reg);
        let mut pkt_reg = RegisteredPacketisers::new();
        nihav_register_all_packetisers(&mut pkt_reg);
        let mut enc_reg = RegisteredEncoders::new();
        nihav_register_all_encoders(&mut enc_reg);
        enc_reg.add_encoder(NULL_ENCODER);
        let mut mux_reg = RegisteredMuxers::new();
        nihav_register_all_muxers(&mut mux_reg);
        mux_reg.add_muxer(NULL_MUXER);
        Self { dmx_reg, rdmx_reg, pkt_reg, dec_reg, enc_reg, mux_reg }
    }
}

pub struct RawStreamCtx<'a> {
    stream:     NAStreamRef,
    sm:         StreamManager,
    packetiser: Box<dyn NAPacketiser + Send>,
    br:         &'a mut ByteReader<'a>,
    pts:        u64,
}

impl<'a> RawStreamCtx<'a> {
    fn new(stream: NAStreamRef, packetiser: Box<dyn NAPacketiser + Send>, br: &'a mut ByteReader<'a>) -> Self {
        let mut sm = StreamManager::new();
        sm.add_stream_ref(stream.clone());
        Self { stream, sm, packetiser, br, pts: 0 }
    }
}

type ReaderBox<'a> = SBBox<Box<dyn ByteIO>, ByteReader<'a>>;

pub enum DemuxerObject<'a> {
    None,
    Normal(SBBox<ReaderBox<'a>, Demuxer<'a>>),
    Raw(SBBox<ReaderBox<'a>, RawDemuxer<'a>>, Vec<Option<Box<dyn NAPacketiser + Send>>>, bool),
    RawStream(SBBox<ReaderBox<'a>, RawStreamCtx<'a>>),
    ImageSequence(ImgSeqDemuxer),
}

impl<'a> DemuxerObject<'a> {
    pub fn create(mut brb: ReaderBox<'a>, reg: &FullRegister, name: &str, ifmt: &Option<String>, is_raw: bool) -> DemuxerObject<'a> {
        let br = brb.get_object_mut();
        if !is_raw {
            let dmx_name = if let Some(ref dname) = ifmt {
                    dname.as_str()
                } else if let Some((dname, score)) = detect::detect_format(name, br) {
                    println!("detected {} with score {:?}", dname, score);
                    dname
                } else {
                    ""
                };
            if !dmx_name.is_empty() {
                println!("trying demuxer {} on {}", dmx_name, name);
                if let Some(dmx_fact) = reg.dmx_reg.find_demuxer(dmx_name) {
                    br.seek(SeekFrom::Start(0)).unwrap();

                    let dmx = SelfBorrow::new(brb, |br_| {
                            unsafe {
                                create_demuxer(dmx_fact, br_.as_mut().unwrap().get_object_mut()).unwrap()
                            }
                        });
                    return DemuxerObject::Normal(dmx);
                }
            }
            if ifmt.is_some() {
                return DemuxerObject::None;
            }
            if !dmx_name.is_empty() {
                println!("trying raw demuxer {} on {}", dmx_name, name);
                if let Some(rdmx_fact) = reg.rdmx_reg.find_demuxer(dmx_name) {
                    br.seek(SeekFrom::Start(0)).unwrap();
                    let dmx = SelfBorrow::new(brb, |br_| {
                            unsafe {
                                create_raw_demuxer(rdmx_fact, br_.as_mut().unwrap().get_object_mut()).unwrap()
                            }
                        });
                    let mut pkts = Vec::new();
                    for stream in dmx.get_object().get_streams() {
                        if let Some(pcreate) = reg.pkt_reg.find_packetiser(stream.get_info().get_name()) {
                            let packetiser = (pcreate)();
                            pkts.push(Some(packetiser));
                        } else {
                            pkts.push(None);
                        }
                    }
                    return DemuxerObject::Raw(dmx, pkts, false);
                }
            }
            for rdmx in reg.rdmx_reg.iter() {
                if rdmx.check_format(br) {
                    println!("detected {} as {}", name, rdmx.get_name());
                    br.seek(SeekFrom::Start(0)).unwrap();
                    let dmx = SelfBorrow::new(brb, |br_| {
                            unsafe {
                                create_raw_demuxer(*rdmx, br_.as_mut().unwrap().get_object_mut()).unwrap()
                            }
                        });
                    let mut pkts = Vec::new();
                    for stream in dmx.get_object().get_streams() {
                        if let Some(pcreate) = reg.pkt_reg.find_packetiser(stream.get_info().get_name()) {
                            let packetiser = (pcreate)();
                            pkts.push(Some(packetiser));
                        } else {
                            pkts.push(None);
                        }
                    }
                    return DemuxerObject::Raw(dmx, pkts, false);
                }
            }
        }
        br.seek(SeekFrom::Start(0)).unwrap();
        let mut buf = vec![0; 1048576];
        let size = br.peek_buf(&mut buf).unwrap();
        let mut pname = "";

        for pinfo in reg.pkt_reg.iter() {
            let mut packetiser = (pinfo.get_packetiser)();
            packetiser.add_data(&buf[..size]);
            if packetiser.parse_stream(0).is_ok() {
                pname = pinfo.name;
                break;
            }
        }
        if !pname.is_empty() {
            println!("found raw stream of type {} for {}", pname, name);
            let pcreate = reg.pkt_reg.find_packetiser(pname).unwrap();
            let rctx = SelfBorrow::new(brb, |br_| {
                    unsafe {
                        let mut packetiser = (pcreate)();
                        packetiser.add_data(&buf[..size]);
                        let stream = packetiser.parse_stream(0).unwrap();
                        packetiser.reset();
                        RawStreamCtx::new(stream, packetiser, br_.as_mut().unwrap().get_object_mut())
                    }
                });
            DemuxerObject::RawStream(rctx)
        } else {
            DemuxerObject::None
        }
    }
    pub fn create_imgseq(isd: ImgSeqDemuxer) -> Self {
        DemuxerObject::ImageSequence(isd)
    }
    pub fn is_none(&self) -> bool {
        matches!(*self, DemuxerObject::None)
    }
    pub fn get_duration(&self) -> u64 {
        match *self {
            DemuxerObject::Normal(ref dmx) => dmx.get_object().get_duration(),
            DemuxerObject::Raw(ref dmx, _, _) => dmx.get_object().get_duration(),
            DemuxerObject::RawStream(ref ctx) => {
                NATimeInfo::ts_to_time(ctx.get_object().stream.duration, 1000, ctx.get_object().stream.tb_num, ctx.get_object().stream.tb_den)
            },
            _ => 0,
        }
    }
    pub fn get_num_streams(&self) -> usize {
        match *self {
            DemuxerObject::None => 0,
            DemuxerObject::Normal(ref dmx) => dmx.get_object().get_num_streams(),
            DemuxerObject::Raw(ref dmx, _, _) => dmx.get_object().get_num_streams(),
            DemuxerObject::RawStream(_) => 1,
            DemuxerObject::ImageSequence(_) => 1,
        }
    }
    pub fn get_stream(&self, idx: usize) -> Option<NAStreamRef> {
        match *self {
            DemuxerObject::Normal(ref dmx) => dmx.get_object().get_stream(idx),
            DemuxerObject::Raw(ref dmx, _, _) => dmx.get_object().get_stream(idx),
            DemuxerObject::RawStream(ref ctx) if idx == 0 => Some(ctx.get_object().stream.clone()),
            DemuxerObject::ImageSequence(ref ctx) if idx == 0 => Some(ctx.stream.clone()),
            _ => None,
        }
    }
    /*pub fn get_streams(&self) -> StreamIter {
        match *self {
            DemuxerObject::Normal(ref dmx) => dmx.get_object().get_streams(),
            DemuxerObject::Raw(ref dmx, _, _) => dmx.get_object().get_streams(),
            DemuxerObject::RawStream(ref ctx) => ctx.get_object().sm.iter(),
            DemuxerObject::ImageSequence(ref ctx) => ctx.sm.iter(),
            _ => unreachable!(),
        }
    }*/
    pub fn get_stream_manager(&self) -> &StreamManager {
        match *self {
            DemuxerObject::Normal(ref dmx) => dmx.get_object().get_stream_manager(),
            DemuxerObject::Raw(ref dmx, _, _) => dmx.get_object().get_stream_manager(),
            DemuxerObject::RawStream(ref ctx) => &ctx.get_object().sm,
            DemuxerObject::ImageSequence(ref ctx) => &ctx.sm,
            _ => unreachable!(),
        }
    }
    pub fn get_frame(&mut self) -> DemuxerResult<NAPacket> {
        match *self {
            DemuxerObject::Normal(ref mut dmx) => dmx.get_object_mut().get_frame(),
            DemuxerObject::Raw(ref mut dmx, ref mut packetisers, ref mut eof) => {
                let dmx = dmx.get_object_mut();
                loop {
                    let mut has_some = false;
                    for (stream, p) in dmx.get_streams().zip(packetisers.iter_mut()) {
                        if let Some(ref mut pkts) = p {
                            match pkts.get_packet(stream.clone()) {
                                Ok(Some(pkt)) => return Ok(pkt),
                                Ok(None) | Err(DecoderError::ShortData) => {
                                    if *eof {
                                        *p = None;
                                    }
                                },
                                Err(err) => {
                                    println!("packetisation error {:?}", err);
                                    return Err(DemuxerError::InvalidData);
                                }
                            };
                            has_some |= p.is_some();
                        }
                    }
                    if !has_some {
                        return Err(DemuxerError::EOF);
                    }
                    if let Ok(data) = dmx.get_data() {
                        let id = data.get_stream().get_id();
                        for (i, stream) in dmx.get_streams().enumerate() {
                            if stream.get_id() == id {
                                if let Some(ref mut pkts) = packetisers[i] {
                                    pkts.add_data(&data.get_buffer());
                                }
                                break;
                            }
                        }
                    } else {
                        *eof = true;
                    }
                }
            },
            DemuxerObject::RawStream(ref mut ctx) => {
                let ctx = ctx.get_object_mut();
                let mut buf = [0; 65536];
                loop {
                    match ctx.packetiser.get_packet(ctx.stream.clone()) {
                        Ok(Some(mut packet)) => {
                            if packet.get_pts().is_none() && packet.get_duration().is_some() {
                                packet.ts.pts = Some(ctx.pts);
                            }
                            ctx.pts += packet.get_duration().unwrap_or(0);
                            return Ok(packet);
                        },
                        Ok(None) => {},
                        Err(DecoderError::ShortData) => {},
                        _ => return Err(DemuxerError::InvalidData),
                    };
                    match ctx.br.read_buf_some(&mut buf) {
                        Ok(size) => {
                            ctx.packetiser.add_data(&buf[..size]);
                        },
                        Err(_) => {
                            match ctx.packetiser.get_packet(ctx.stream.clone()) {
                                Ok(Some(mut packet)) => {
                                    if packet.get_pts().is_none() && packet.get_duration().is_some() {
                                        packet.ts.pts = Some(ctx.pts);
                                    }
                                    ctx.pts += packet.get_duration().unwrap_or(0);
                                    return Ok(packet);
                                },
                                Ok(None) | Err(DecoderError::ShortData) => return Err(DemuxerError::EOF),
                                _ => return Err(DemuxerError::InvalidData),
                            };
                        },
                    };
                }
            },
            DemuxerObject::ImageSequence(ref mut ctx) => ctx.get_frame(),
            _ => unreachable!(),
        }
    }
    pub fn seek(&mut self, seek_time: NATimePoint) -> DemuxerResult<()> {
        match *self {
            DemuxerObject::Normal(ref mut dmx) => dmx.get_object_mut().seek(seek_time),
            DemuxerObject::Raw(ref mut dmx, _, _) => dmx.get_object_mut().seek(seek_time),
            DemuxerObject::ImageSequence(ref mut ctx) => ctx.seek(seek_time),
            _ => Err(DemuxerError::NotImplemented),
        }
    }
}

impl<'a> NAOptionHandler for DemuxerObject<'a> {
    fn get_supported_options(&self) -> &[NAOptionDefinition] {
        match *self {
            DemuxerObject::Normal(ref dmx) => dmx.get_object().get_supported_options(),
            DemuxerObject::Raw(ref dmx, _, _) => dmx.get_object().get_supported_options(),
            DemuxerObject::ImageSequence(ref ctx) => ctx.get_supported_options(),
            _ => &[],
        }
    }
    fn set_options(&mut self, options: &[NAOption]) {
        match *self {
            DemuxerObject::Normal(ref mut dmx) => dmx.get_object_mut().set_options(options),
            DemuxerObject::Raw(ref mut dmx, _, _) => dmx.get_object_mut().set_options(options),
            DemuxerObject::ImageSequence(ref mut ctx) => ctx.set_options(options),
            _ => {},
        }
    }
    fn query_option_value(&self, name: &str) -> Option<NAValue> {
        match *self {
            DemuxerObject::Normal(ref dmx) => dmx.get_object().query_option_value(name),
            DemuxerObject::Raw(ref dmx, _, _) => dmx.get_object().query_option_value(name),
            DemuxerObject::ImageSequence(ref ctx) => ctx.query_option_value(name),
            _ => None,
        }
    }
}

pub fn detect_tags(br: &mut ByteReader) -> (bool, u64, Option<u64>) {
    let mut is_raw = false;
    let mut start = 0;
    let mut end = None;

    // check for ID3v{2-4}
    let mut buf = [0; 5];
    br.peek_buf(&mut buf).unwrap();
    if &buf[0..3] == b"ID3" && buf[3] > 0 && buf[3] < 5 && buf[4] == 0 { //ID3 tag found, must be a raw stream
        br.read_skip(6).unwrap();
        let mut size = 0;
        for _ in 0..4 {
            let b = br.read_byte().unwrap();
            if (b & 0x80) != 0 {
                println!("Invalid ID3 size");
                break;
            }
            size = (size << 7) | u64::from(b);
        }
        start = size + 10;
        is_raw = true;
    }
    // check for ID3v1
    br.seek(SeekFrom::End(-128)).unwrap();
    let off = br.tell();
    br.peek_buf(&mut buf[..3]).unwrap();
    if &buf[0..3] == b"TAG" {
        end = Some(off);
    }
    // check for APETAG
    let mut buf = [0; 8];
    if let Some(off) = end {
        br.seek(SeekFrom::Start(off - 32)).unwrap();
    } else {
        br.seek(SeekFrom::End(-32)).unwrap();
    }
    let off = br.tell();
    br.read_buf(&mut buf).unwrap();
    if &buf == b"APETAGEX" {
        let ver     = br.read_u32le().unwrap();
        let size    = u64::from(br.read_u32le().unwrap());
        let _items  = br.read_u32le().unwrap();
        let flags   = br.read_u32le().unwrap();
        if ver == 1000 || (flags & 0x80000000) == 0 {
            end = Some(off - size + 32);
        } else {
            end = Some(off - size);
        }
    }

    (is_raw, start, end)
}
Commit	Line	Data
91a15e39 KS	1	use std::io::SeekFrom;
	2	use nihav_core::codecs::*;
	3	use nihav_core::demuxers::*;
	4	use nihav_core::muxers::*;
	5	use nihav_registry::detect;
	6	use nihav_core::io::byteio::ByteReader;
	7	use nihav_allstuff::*;
	8	use crate::null::*;
90683bc3	9	use crate::imgseq::*;
4a835a2a	10	use crate::{SBBox, SelfBorrow};
91a15e39 KS	11
	12	pub struct FullRegister {
	13	pub dmx_reg: RegisteredDemuxers,
	14	pub rdmx_reg: RegisteredRawDemuxers,
	15	pub pkt_reg: RegisteredPacketisers,
	16	pub dec_reg: RegisteredDecoders,
	17	pub enc_reg: RegisteredEncoders,
	18	pub mux_reg: RegisteredMuxers,
	19	}
	20
	21	impl FullRegister {
	22	pub fn new() -> Self {
	23	let mut dmx_reg = RegisteredDemuxers::new();
	24	nihav_register_all_demuxers(&mut dmx_reg);
	25	let mut rdmx_reg = RegisteredRawDemuxers::new();
	26	nihav_register_all_raw_demuxers(&mut rdmx_reg);
	27	let mut dec_reg = RegisteredDecoders::new();
	28	nihav_register_all_decoders(&mut dec_reg);
	29	let mut pkt_reg = RegisteredPacketisers::new();
	30	nihav_register_all_packetisers(&mut pkt_reg);
	31	let mut enc_reg = RegisteredEncoders::new();
	32	nihav_register_all_encoders(&mut enc_reg);
	33	enc_reg.add_encoder(NULL_ENCODER);
	34	let mut mux_reg = RegisteredMuxers::new();
	35	nihav_register_all_muxers(&mut mux_reg);
	36	mux_reg.add_muxer(NULL_MUXER);
	37	Self { dmx_reg, rdmx_reg, pkt_reg, dec_reg, enc_reg, mux_reg }
	38	}
	39	}
	40
	41	pub struct RawStreamCtx<'a> {
	42	stream: NAStreamRef,
	43	sm: StreamManager,
	44	packetiser: Box<dyn NAPacketiser + Send>,
	45	br: &'a mut ByteReader<'a>,
206dd66d	46	pts: u64,
91a15e39 KS	47	}
	48
	49	impl<'a> RawStreamCtx<'a> {
	50	fn new(stream: NAStreamRef, packetiser: Box<dyn NAPacketiser + Send>, br: &'a mut ByteReader<'a>) -> Self {
	51	let mut sm = StreamManager::new();
	52	sm.add_stream_ref(stream.clone());
206dd66d	53	Self { stream, sm, packetiser, br, pts: 0 }
91a15e39 KS	54	}
	55	}
	56
4a835a2a KS	57	type ReaderBox<'a> = SBBox<Box<dyn ByteIO>, ByteReader<'a>>;
4a835a2a KS	58
91a15e39 KS	59	pub enum DemuxerObject<'a> {
91a15e39 KS	60	None,
4a835a2a KS	61	Normal(SBBox<ReaderBox<'a>, Demuxer<'a>>),
	62	Raw(SBBox<ReaderBox<'a>, RawDemuxer<'a>>, Vec<Option<Box<dyn NAPacketiser + Send>>>, bool),
	63	RawStream(SBBox<ReaderBox<'a>, RawStreamCtx<'a>>),
90683bc3	64	ImageSequence(ImgSeqDemuxer),
91a15e39 KS	65	}
	66
	67	impl<'a> DemuxerObject<'a> {
4a835a2a KS	68	pub fn create(mut brb: ReaderBox<'a>, reg: &FullRegister, name: &str, ifmt: &Option<String>, is_raw: bool) -> DemuxerObject<'a> {
4a835a2a KS	69	let br = brb.get_object_mut();
91a15e39 KS	70	if !is_raw {
	71	let dmx_name = if let Some(ref dname) = ifmt {
	72	dname.as_str()
	73	} else if let Some((dname, score)) = detect::detect_format(name, br) {
	74	println!("detected {} with score {:?}", dname, score);
	75	dname
	76	} else {
	77	""
	78	};
76ea2e41	79	if !dmx_name.is_empty() {
91a15e39 KS	80	println!("trying demuxer {} on {}", dmx_name, name);
	81	if let Some(dmx_fact) = reg.dmx_reg.find_demuxer(dmx_name) {
	82	br.seek(SeekFrom::Start(0)).unwrap();
4a835a2a KS	83
	84	let dmx = SelfBorrow::new(brb, \|br_\| {
	85	unsafe {
	86	create_demuxer(dmx_fact, br_.as_mut().unwrap().get_object_mut()).unwrap()
	87	}
	88	});
91a15e39 KS	89	return DemuxerObject::Normal(dmx);
	90	}
	91	}
	92	if ifmt.is_some() {
	93	return DemuxerObject::None;
	94	}
76ea2e41	95	if !dmx_name.is_empty() {
91a15e39 KS	96	println!("trying raw demuxer {} on {}", dmx_name, name);
	97	if let Some(rdmx_fact) = reg.rdmx_reg.find_demuxer(dmx_name) {
	98	br.seek(SeekFrom::Start(0)).unwrap();
4a835a2a KS	99	let dmx = SelfBorrow::new(brb, \|br_\| {
	100	unsafe {
	101	create_raw_demuxer(rdmx_fact, br_.as_mut().unwrap().get_object_mut()).unwrap()
	102	}
	103	});
91a15e39	104	let mut pkts = Vec::new();
4a835a2a	105	for stream in dmx.get_object().get_streams() {
91a15e39 KS	106	if let Some(pcreate) = reg.pkt_reg.find_packetiser(stream.get_info().get_name()) {
	107	let packetiser = (pcreate)();
	108	pkts.push(Some(packetiser));
	109	} else {
	110	pkts.push(None);
	111	}
	112	}
	113	return DemuxerObject::Raw(dmx, pkts, false);
	114	}
	115	}
	116	for rdmx in reg.rdmx_reg.iter() {
	117	if rdmx.check_format(br) {
	118	println!("detected {} as {}", name, rdmx.get_name());
	119	br.seek(SeekFrom::Start(0)).unwrap();
4a835a2a KS	120	let dmx = SelfBorrow::new(brb, \|br_\| {
	121	unsafe {
	122	create_raw_demuxer(*rdmx, br_.as_mut().unwrap().get_object_mut()).unwrap()
	123	}
	124	});
91a15e39	125	let mut pkts = Vec::new();
4a835a2a	126	for stream in dmx.get_object().get_streams() {
91a15e39 KS	127	if let Some(pcreate) = reg.pkt_reg.find_packetiser(stream.get_info().get_name()) {
	128	let packetiser = (pcreate)();
	129	pkts.push(Some(packetiser));
	130	} else {
	131	pkts.push(None);
	132	}
	133	}
	134	return DemuxerObject::Raw(dmx, pkts, false);
	135	}
	136	}
	137	}
	138	br.seek(SeekFrom::Start(0)).unwrap();
	139	let mut buf = vec![0; 1048576];
	140	let size = br.peek_buf(&mut buf).unwrap();
	141	let mut pname = "";
	142
	143	for pinfo in reg.pkt_reg.iter() {
	144	let mut packetiser = (pinfo.get_packetiser)();
	145	packetiser.add_data(&buf[..size]);
	146	if packetiser.parse_stream(0).is_ok() {
	147	pname = pinfo.name;
	148	break;
	149	}
	150	}
76ea2e41	151	if !pname.is_empty() {
91a15e39 KS	152	println!("found raw stream of type {} for {}", pname, name);
91a15e39 KS	153	let pcreate = reg.pkt_reg.find_packetiser(pname).unwrap();
4a835a2a KS	154	let rctx = SelfBorrow::new(brb, \|br_\| {
	155	unsafe {
	156	let mut packetiser = (pcreate)();
	157	packetiser.add_data(&buf[..size]);
	158	let stream = packetiser.parse_stream(0).unwrap();
	159	packetiser.reset();
	160	RawStreamCtx::new(stream, packetiser, br_.as_mut().unwrap().get_object_mut())
	161	}
	162	});
	163	DemuxerObject::RawStream(rctx)
91a15e39 KS	164	} else {
	165	DemuxerObject::None
	166	}
	167	}
90683bc3 KS	168	pub fn create_imgseq(isd: ImgSeqDemuxer) -> Self {
	169	DemuxerObject::ImageSequence(isd)
	170	}
91a15e39	171	pub fn is_none(&self) -> bool {
76ea2e41	172	matches!(*self, DemuxerObject::None)
91a15e39	173	}
5ec8115f	174	pub fn get_duration(&self) -> u64 {
91a15e39	175	match *self {
4a835a2a KS	176	DemuxerObject::Normal(ref dmx) => dmx.get_object().get_duration(),
4a835a2a KS	177	DemuxerObject::Raw(ref dmx, _, _) => dmx.get_object().get_duration(),
4dd9047c	178	DemuxerObject::RawStream(ref ctx) => {
4a835a2a	179	NATimeInfo::ts_to_time(ctx.get_object().stream.duration, 1000, ctx.get_object().stream.tb_num, ctx.get_object().stream.tb_den)
4dd9047c	180	},
91a15e39 KS	181	_ => 0,
91a15e39 KS	182	}
5ec8115f	183	}
91a15e39 KS	184	pub fn get_num_streams(&self) -> usize {
	185	match *self {
	186	DemuxerObject::None => 0,
4a835a2a KS	187	DemuxerObject::Normal(ref dmx) => dmx.get_object().get_num_streams(),
4a835a2a KS	188	DemuxerObject::Raw(ref dmx, _, _) => dmx.get_object().get_num_streams(),
91a15e39	189	DemuxerObject::RawStream(_) => 1,
90683bc3	190	DemuxerObject::ImageSequence(_) => 1,
91a15e39 KS	191	}
	192	}
	193	pub fn get_stream(&self, idx: usize) -> Option<NAStreamRef> {
	194	match *self {
4a835a2a KS	195	DemuxerObject::Normal(ref dmx) => dmx.get_object().get_stream(idx),
	196	DemuxerObject::Raw(ref dmx, _, _) => dmx.get_object().get_stream(idx),
	197	DemuxerObject::RawStream(ref ctx) if idx == 0 => Some(ctx.get_object().stream.clone()),
90683bc3	198	DemuxerObject::ImageSequence(ref ctx) if idx == 0 => Some(ctx.stream.clone()),
91a15e39 KS	199	_ => None,
	200	}
	201	}
4a835a2a	202	/*pub fn get_streams(&self) -> StreamIter {
91a15e39	203	match *self {
4a835a2a KS	204	DemuxerObject::Normal(ref dmx) => dmx.get_object().get_streams(),
	205	DemuxerObject::Raw(ref dmx, _, _) => dmx.get_object().get_streams(),
	206	DemuxerObject::RawStream(ref ctx) => ctx.get_object().sm.iter(),
90683bc3	207	DemuxerObject::ImageSequence(ref ctx) => ctx.sm.iter(),
91a15e39 KS	208	_ => unreachable!(),
91a15e39 KS	209	}
4a835a2a	210	}*/
91a15e39 KS	211	pub fn get_stream_manager(&self) -> &StreamManager {
91a15e39 KS	212	match *self {
4a835a2a KS	213	DemuxerObject::Normal(ref dmx) => dmx.get_object().get_stream_manager(),
	214	DemuxerObject::Raw(ref dmx, _, _) => dmx.get_object().get_stream_manager(),
	215	DemuxerObject::RawStream(ref ctx) => &ctx.get_object().sm,
90683bc3	216	DemuxerObject::ImageSequence(ref ctx) => &ctx.sm,
91a15e39 KS	217	_ => unreachable!(),
	218	}
	219	}
	220	pub fn get_frame(&mut self) -> DemuxerResult<NAPacket> {
	221	match *self {
4a835a2a	222	DemuxerObject::Normal(ref mut dmx) => dmx.get_object_mut().get_frame(),
91a15e39	223	DemuxerObject::Raw(ref mut dmx, ref mut packetisers, ref mut eof) => {
4a835a2a	224	let dmx = dmx.get_object_mut();
91a15e39 KS	225	loop {
	226	let mut has_some = false;
	227	for (stream, p) in dmx.get_streams().zip(packetisers.iter_mut()) {
	228	if let Some(ref mut pkts) = p {
	229	match pkts.get_packet(stream.clone()) {
	230	Ok(Some(pkt)) => return Ok(pkt),
	231	Ok(None) \| Err(DecoderError::ShortData) => {
	232	if *eof {
	233	*p = None;
	234	}
	235	},
	236	Err(err) => {
	237	println!("packetisation error {:?}", err);
	238	return Err(DemuxerError::InvalidData);
	239	}
	240	};
	241	has_some \|= p.is_some();
	242	}
	243	}
	244	if !has_some {
	245	return Err(DemuxerError::EOF);
	246	}
	247	if let Ok(data) = dmx.get_data() {
	248	let id = data.get_stream().get_id();
	249	for (i, stream) in dmx.get_streams().enumerate() {
	250	if stream.get_id() == id {
	251	if let Some(ref mut pkts) = packetisers[i] {
	252	pkts.add_data(&data.get_buffer());
	253	}
	254	break;
	255	}
	256	}
	257	} else {
	258	*eof = true;
	259	}
	260	}
	261	},
	262	DemuxerObject::RawStream(ref mut ctx) => {
4a835a2a	263	let ctx = ctx.get_object_mut();
91a15e39 KS	264	let mut buf = [0; 65536];
	265	loop {
	266	match ctx.packetiser.get_packet(ctx.stream.clone()) {
206dd66d KS	267	Ok(Some(mut packet)) => {
	268	if packet.get_pts().is_none() && packet.get_duration().is_some() {
	269	packet.ts.pts = Some(ctx.pts);
	270	}
	271	ctx.pts += packet.get_duration().unwrap_or(0);
	272	return Ok(packet);
	273	},
91a15e39 KS	274	Ok(None) => {},
	275	Err(DecoderError::ShortData) => {},
	276	_ => return Err(DemuxerError::InvalidData),
	277	};
	278	match ctx.br.read_buf_some(&mut buf) {
	279	Ok(size) => {
	280	ctx.packetiser.add_data(&buf[..size]);
	281	},
	282	Err(_) => {
	283	match ctx.packetiser.get_packet(ctx.stream.clone()) {
206dd66d KS	284	Ok(Some(mut packet)) => {
	285	if packet.get_pts().is_none() && packet.get_duration().is_some() {
	286	packet.ts.pts = Some(ctx.pts);
	287	}
	288	ctx.pts += packet.get_duration().unwrap_or(0);
	289	return Ok(packet);
	290	},
91a15e39 KS	291	Ok(None) \| Err(DecoderError::ShortData) => return Err(DemuxerError::EOF),
	292	_ => return Err(DemuxerError::InvalidData),
	293	};
	294	},
	295	};
	296	}
	297	},
90683bc3	298	DemuxerObject::ImageSequence(ref mut ctx) => ctx.get_frame(),
91a15e39 KS	299	_ => unreachable!(),
	300	}
	301	}
	302	pub fn seek(&mut self, seek_time: NATimePoint) -> DemuxerResult<()> {
	303	match *self {
4a835a2a KS	304	DemuxerObject::Normal(ref mut dmx) => dmx.get_object_mut().seek(seek_time),
4a835a2a KS	305	DemuxerObject::Raw(ref mut dmx, _, _) => dmx.get_object_mut().seek(seek_time),
90683bc3	306	DemuxerObject::ImageSequence(ref mut ctx) => ctx.seek(seek_time),
91a15e39 KS	307	_ => Err(DemuxerError::NotImplemented),
	308	}
	309	}
	310	}
	311
	312	impl<'a> NAOptionHandler for DemuxerObject<'a> {
	313	fn get_supported_options(&self) -> &[NAOptionDefinition] {
	314	match *self {
4a835a2a KS	315	DemuxerObject::Normal(ref dmx) => dmx.get_object().get_supported_options(),
4a835a2a KS	316	DemuxerObject::Raw(ref dmx, _, _) => dmx.get_object().get_supported_options(),
90683bc3	317	DemuxerObject::ImageSequence(ref ctx) => ctx.get_supported_options(),
91a15e39 KS	318	_ => &[],
	319	}
	320	}
	321	fn set_options(&mut self, options: &[NAOption]) {
	322	match *self {
4a835a2a KS	323	DemuxerObject::Normal(ref mut dmx) => dmx.get_object_mut().set_options(options),
4a835a2a KS	324	DemuxerObject::Raw(ref mut dmx, _, _) => dmx.get_object_mut().set_options(options),
90683bc3	325	DemuxerObject::ImageSequence(ref mut ctx) => ctx.set_options(options),
91a15e39 KS	326	_ => {},
	327	}
	328	}
	329	fn query_option_value(&self, name: &str) -> Option<NAValue> {
	330	match *self {
4a835a2a KS	331	DemuxerObject::Normal(ref dmx) => dmx.get_object().query_option_value(name),
4a835a2a KS	332	DemuxerObject::Raw(ref dmx, _, _) => dmx.get_object().query_option_value(name),
90683bc3	333	DemuxerObject::ImageSequence(ref ctx) => ctx.query_option_value(name),
91a15e39 KS	334	_ => None,
	335	}
	336	}
	337	}
	338
	339	pub fn detect_tags(br: &mut ByteReader) -> (bool, u64, Option<u64>) {
	340	let mut is_raw = false;
	341	let mut start = 0;
	342	let mut end = None;
	343
	344	// check for ID3v{2-4}
	345	let mut buf = [0; 5];
	346	br.peek_buf(&mut buf).unwrap();
	347	if &buf[0..3] == b"ID3" && buf[3] > 0 && buf[3] < 5 && buf[4] == 0 { //ID3 tag found, must be a raw stream
	348	br.read_skip(6).unwrap();
	349	let mut size = 0;
	350	for _ in 0..4 {
	351	let b = br.read_byte().unwrap();
	352	if (b & 0x80) != 0 {
	353	println!("Invalid ID3 size");
	354	break;
	355	}
	356	size = (size << 7) \| u64::from(b);
	357	}
	358	start = size + 10;
	359	is_raw = true;
	360	}
	361	// check for ID3v1
	362	br.seek(SeekFrom::End(-128)).unwrap();
	363	let off = br.tell();
	364	br.peek_buf(&mut buf[..3]).unwrap();
	365	if &buf[0..3] == b"TAG" {
	366	end = Some(off);
	367	}
	368	// check for APETAG
	369	let mut buf = [0; 8];
	370	if let Some(off) = end {
	371	br.seek(SeekFrom::Start(off - 32)).unwrap();
	372	} else {
	373	br.seek(SeekFrom::End(-32)).unwrap();
	374	}
	375	let off = br.tell();
	376	br.read_buf(&mut buf).unwrap();
	377	if &buf == b"APETAGEX" {
	378	let ver = br.read_u32le().unwrap();
	379	let size = u64::from(br.read_u32le().unwrap());
	380	let _items = br.read_u32le().unwrap();
	381	let flags = br.read_u32le().unwrap();
	382	if ver == 1000 \|\| (flags & 0x80000000) == 0 {
	383	end = Some(off - size + 32);
	384	} else {
	385	end = Some(off - size);
	386	}
	387	}
	388
	389	(is_raw, start, end)
	390	}