[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, print_info: 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) {
                    if print_info {
                        println!("detected {} with score {:?}", dname, score);
                    }
                    dname
                } else {
                    ""
                };
            if !dmx_name.is_empty() {
                if print_info {
                    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 ret = SelfBorrow::try_new(brb, |br_| {
                            unsafe {
                                create_demuxer(dmx_fact, br_.as_mut().unwrap().get_object_mut()).ok()
                            }
                        });
                    if let Some(dmx) = ret {
                        return DemuxerObject::Normal(dmx);
                    } else {
                        println!("demuxer creation failed!");
                        return DemuxerObject::None;
                    }
                }
            }
            if ifmt.is_some() {
                return DemuxerObject::None;
            }
            if !dmx_name.is_empty() {
                if print_info {
                    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 ret = SelfBorrow::try_new(brb, |br_| {
                            unsafe {
                                create_raw_demuxer(rdmx_fact, br_.as_mut().unwrap().get_object_mut()).ok()
                            }
                        });
                    if let Some(dmx) = ret {
                        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 mut packetiser = (pcreate)();
                                packetiser.attach_stream(stream);
                                pkts.push(Some(packetiser));
                            } else {
                                pkts.push(None);
                            }
                        }
                        return DemuxerObject::Raw(dmx, pkts, false);
                    } else {
                        println!("raw demuxer creation failed!");
                        return DemuxerObject::None;
                    }
                }
            }
            for rdmx in reg.rdmx_reg.iter() {
                if rdmx.check_format(br) {
                    if print_info {
                        println!("detected {} as {}", name, rdmx.get_name());
                    }
                    br.seek(SeekFrom::Start(0)).unwrap();
                    let ret = SelfBorrow::try_new(brb, |br_| {
                            unsafe {
                                create_raw_demuxer(*rdmx, br_.as_mut().unwrap().get_object_mut()).ok()
                            }
                        });
                    if let Some(dmx) = ret {
                        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);
                    } else {
                        println!("raw demuxer creation failed!");
                        return DemuxerObject::None;
                    }
                }
            }
        }
        br.seek(SeekFrom::Start(0)).unwrap();
        let mut buf = vec![0; 1048576];
        let size = if let Ok(val) = br.peek_buf(&mut buf) { val } else {
                println!("cannot read any data");
                return DemuxerObject::None;
            };
        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() {
            if print_info {
                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];
    if br.peek_buf(&mut buf).is_err() {
        return (false, 0, None);
    }
    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> {
e6308188	68	pub fn create(mut brb: ReaderBox<'a>, reg: &FullRegister, name: &str, ifmt: &Option<String>, is_raw: bool, print_info: bool) -> DemuxerObject<'a> {
4a835a2a	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) {
e6308188 KS	74	if print_info {
	75	println!("detected {} with score {:?}", dname, score);
	76	}
91a15e39 KS	77	dname
	78	} else {
	79	""
	80	};
76ea2e41	81	if !dmx_name.is_empty() {
e6308188 KS	82	if print_info {
	83	println!("trying demuxer {} on {}", dmx_name, name);
	84	}
91a15e39 KS	85	if let Some(dmx_fact) = reg.dmx_reg.find_demuxer(dmx_name) {
91a15e39 KS	86	br.seek(SeekFrom::Start(0)).unwrap();
4a835a2a	87
2b0a517e	88	let ret = SelfBorrow::try_new(brb, \|br_\| {
4a835a2a	89	unsafe {
2b0a517e	90	create_demuxer(dmx_fact, br_.as_mut().unwrap().get_object_mut()).ok()
4a835a2a KS	91	}
4a835a2a KS	92	});
2b0a517e KS	93	if let Some(dmx) = ret {
	94	return DemuxerObject::Normal(dmx);
	95	} else {
	96	println!("demuxer creation failed!");
	97	return DemuxerObject::None;
	98	}
91a15e39 KS	99	}
	100	}
	101	if ifmt.is_some() {
	102	return DemuxerObject::None;
	103	}
76ea2e41	104	if !dmx_name.is_empty() {
e6308188 KS	105	if print_info {
	106	println!("trying raw demuxer {} on {}", dmx_name, name);
	107	}
91a15e39 KS	108	if let Some(rdmx_fact) = reg.rdmx_reg.find_demuxer(dmx_name) {
91a15e39 KS	109	br.seek(SeekFrom::Start(0)).unwrap();
2b0a517e	110	let ret = SelfBorrow::try_new(brb, \|br_\| {
4a835a2a	111	unsafe {
2b0a517e	112	create_raw_demuxer(rdmx_fact, br_.as_mut().unwrap().get_object_mut()).ok()
4a835a2a KS	113	}
4a835a2a KS	114	});
2b0a517e KS	115	if let Some(dmx) = ret {
	116	let mut pkts = Vec::new();
	117	for stream in dmx.get_object().get_streams() {
	118	if let Some(pcreate) = reg.pkt_reg.find_packetiser(stream.get_info().get_name()) {
	119	let mut packetiser = (pcreate)();
	120	packetiser.attach_stream(stream);
	121	pkts.push(Some(packetiser));
	122	} else {
	123	pkts.push(None);
	124	}
91a15e39	125	}
2b0a517e KS	126	return DemuxerObject::Raw(dmx, pkts, false);
	127	} else {
	128	println!("raw demuxer creation failed!");
	129	return DemuxerObject::None;
91a15e39	130	}
91a15e39 KS	131	}
	132	}
	133	for rdmx in reg.rdmx_reg.iter() {
	134	if rdmx.check_format(br) {
e6308188 KS	135	if print_info {
	136	println!("detected {} as {}", name, rdmx.get_name());
	137	}
91a15e39	138	br.seek(SeekFrom::Start(0)).unwrap();
2b0a517e	139	let ret = SelfBorrow::try_new(brb, \|br_\| {
4a835a2a	140	unsafe {
2b0a517e	141	create_raw_demuxer(*rdmx, br_.as_mut().unwrap().get_object_mut()).ok()
4a835a2a KS	142	}
4a835a2a KS	143	});
2b0a517e KS	144	if let Some(dmx) = ret {
	145	let mut pkts = Vec::new();
	146	for stream in dmx.get_object().get_streams() {
	147	if let Some(pcreate) = reg.pkt_reg.find_packetiser(stream.get_info().get_name()) {
	148	let packetiser = (pcreate)();
	149	pkts.push(Some(packetiser));
	150	} else {
	151	pkts.push(None);
	152	}
91a15e39	153	}
2b0a517e KS	154	return DemuxerObject::Raw(dmx, pkts, false);
	155	} else {
	156	println!("raw demuxer creation failed!");
	157	return DemuxerObject::None;
91a15e39	158	}
91a15e39 KS	159	}
	160	}
	161	}
	162	br.seek(SeekFrom::Start(0)).unwrap();
	163	let mut buf = vec![0; 1048576];
2b0a517e KS	164	let size = if let Ok(val) = br.peek_buf(&mut buf) { val } else {
	165	println!("cannot read any data");
	166	return DemuxerObject::None;
	167	};
91a15e39 KS	168	let mut pname = "";
	169
	170	for pinfo in reg.pkt_reg.iter() {
	171	let mut packetiser = (pinfo.get_packetiser)();
	172	packetiser.add_data(&buf[..size]);
	173	if packetiser.parse_stream(0).is_ok() {
	174	pname = pinfo.name;
	175	break;
	176	}
	177	}
76ea2e41	178	if !pname.is_empty() {
e6308188 KS	179	if print_info {
	180	println!("found raw stream of type {} for {}", pname, name);
	181	}
91a15e39	182	let pcreate = reg.pkt_reg.find_packetiser(pname).unwrap();
4a835a2a KS	183	let rctx = SelfBorrow::new(brb, \|br_\| {
	184	unsafe {
	185	let mut packetiser = (pcreate)();
	186	packetiser.add_data(&buf[..size]);
	187	let stream = packetiser.parse_stream(0).unwrap();
	188	packetiser.reset();
	189	RawStreamCtx::new(stream, packetiser, br_.as_mut().unwrap().get_object_mut())
	190	}
	191	});
	192	DemuxerObject::RawStream(rctx)
91a15e39 KS	193	} else {
	194	DemuxerObject::None
	195	}
	196	}
90683bc3 KS	197	pub fn create_imgseq(isd: ImgSeqDemuxer) -> Self {
	198	DemuxerObject::ImageSequence(isd)
	199	}
91a15e39	200	pub fn is_none(&self) -> bool {
76ea2e41	201	matches!(*self, DemuxerObject::None)
91a15e39	202	}
5ec8115f	203	pub fn get_duration(&self) -> u64 {
91a15e39	204	match *self {
4a835a2a KS	205	DemuxerObject::Normal(ref dmx) => dmx.get_object().get_duration(),
4a835a2a KS	206	DemuxerObject::Raw(ref dmx, _, _) => dmx.get_object().get_duration(),
4dd9047c	207	DemuxerObject::RawStream(ref ctx) => {
4a835a2a	208	NATimeInfo::ts_to_time(ctx.get_object().stream.duration, 1000, ctx.get_object().stream.tb_num, ctx.get_object().stream.tb_den)
4dd9047c	209	},
91a15e39 KS	210	_ => 0,
91a15e39 KS	211	}
5ec8115f	212	}
91a15e39 KS	213	pub fn get_num_streams(&self) -> usize {
	214	match *self {
	215	DemuxerObject::None => 0,
4a835a2a KS	216	DemuxerObject::Normal(ref dmx) => dmx.get_object().get_num_streams(),
4a835a2a KS	217	DemuxerObject::Raw(ref dmx, _, _) => dmx.get_object().get_num_streams(),
91a15e39	218	DemuxerObject::RawStream(_) => 1,
90683bc3	219	DemuxerObject::ImageSequence(_) => 1,
91a15e39 KS	220	}
	221	}
	222	pub fn get_stream(&self, idx: usize) -> Option<NAStreamRef> {
	223	match *self {
4a835a2a KS	224	DemuxerObject::Normal(ref dmx) => dmx.get_object().get_stream(idx),
	225	DemuxerObject::Raw(ref dmx, _, _) => dmx.get_object().get_stream(idx),
	226	DemuxerObject::RawStream(ref ctx) if idx == 0 => Some(ctx.get_object().stream.clone()),
90683bc3	227	DemuxerObject::ImageSequence(ref ctx) if idx == 0 => Some(ctx.stream.clone()),
91a15e39 KS	228	_ => None,
	229	}
	230	}
4a835a2a	231	/*pub fn get_streams(&self) -> StreamIter {
91a15e39	232	match *self {
4a835a2a KS	233	DemuxerObject::Normal(ref dmx) => dmx.get_object().get_streams(),
	234	DemuxerObject::Raw(ref dmx, _, _) => dmx.get_object().get_streams(),
	235	DemuxerObject::RawStream(ref ctx) => ctx.get_object().sm.iter(),
90683bc3	236	DemuxerObject::ImageSequence(ref ctx) => ctx.sm.iter(),
91a15e39 KS	237	_ => unreachable!(),
91a15e39 KS	238	}
4a835a2a	239	}*/
91a15e39 KS	240	pub fn get_stream_manager(&self) -> &StreamManager {
91a15e39 KS	241	match *self {
4a835a2a KS	242	DemuxerObject::Normal(ref dmx) => dmx.get_object().get_stream_manager(),
	243	DemuxerObject::Raw(ref dmx, _, _) => dmx.get_object().get_stream_manager(),
	244	DemuxerObject::RawStream(ref ctx) => &ctx.get_object().sm,
90683bc3	245	DemuxerObject::ImageSequence(ref ctx) => &ctx.sm,
91a15e39 KS	246	_ => unreachable!(),
	247	}
	248	}
	249	pub fn get_frame(&mut self) -> DemuxerResult<NAPacket> {
	250	match *self {
4a835a2a	251	DemuxerObject::Normal(ref mut dmx) => dmx.get_object_mut().get_frame(),
91a15e39	252	DemuxerObject::Raw(ref mut dmx, ref mut packetisers, ref mut eof) => {
4a835a2a	253	let dmx = dmx.get_object_mut();
91a15e39 KS	254	loop {
	255	let mut has_some = false;
	256	for (stream, p) in dmx.get_streams().zip(packetisers.iter_mut()) {
	257	if let Some(ref mut pkts) = p {
	258	match pkts.get_packet(stream.clone()) {
	259	Ok(Some(pkt)) => return Ok(pkt),
	260	Ok(None) \| Err(DecoderError::ShortData) => {
	261	if *eof {
	262	*p = None;
	263	}
	264	},
	265	Err(err) => {
	266	println!("packetisation error {:?}", err);
	267	return Err(DemuxerError::InvalidData);
	268	}
	269	};
	270	has_some \|= p.is_some();
	271	}
	272	}
	273	if !has_some {
	274	return Err(DemuxerError::EOF);
	275	}
	276	if let Ok(data) = dmx.get_data() {
	277	let id = data.get_stream().get_id();
	278	for (i, stream) in dmx.get_streams().enumerate() {
	279	if stream.get_id() == id {
	280	if let Some(ref mut pkts) = packetisers[i] {
	281	pkts.add_data(&data.get_buffer());
	282	}
	283	break;
	284	}
	285	}
	286	} else {
	287	*eof = true;
	288	}
	289	}
	290	},
	291	DemuxerObject::RawStream(ref mut ctx) => {
4a835a2a	292	let ctx = ctx.get_object_mut();
91a15e39 KS	293	let mut buf = [0; 65536];
	294	loop {
	295	match ctx.packetiser.get_packet(ctx.stream.clone()) {
206dd66d KS	296	Ok(Some(mut packet)) => {
	297	if packet.get_pts().is_none() && packet.get_duration().is_some() {
	298	packet.ts.pts = Some(ctx.pts);
	299	}
	300	ctx.pts += packet.get_duration().unwrap_or(0);
	301	return Ok(packet);
	302	},
91a15e39 KS	303	Ok(None) => {},
	304	Err(DecoderError::ShortData) => {},
	305	_ => return Err(DemuxerError::InvalidData),
	306	};
	307	match ctx.br.read_buf_some(&mut buf) {
	308	Ok(size) => {
	309	ctx.packetiser.add_data(&buf[..size]);
	310	},
	311	Err(_) => {
	312	match ctx.packetiser.get_packet(ctx.stream.clone()) {
206dd66d KS	313	Ok(Some(mut packet)) => {
	314	if packet.get_pts().is_none() && packet.get_duration().is_some() {
	315	packet.ts.pts = Some(ctx.pts);
	316	}
	317	ctx.pts += packet.get_duration().unwrap_or(0);
	318	return Ok(packet);
	319	},
91a15e39 KS	320	Ok(None) \| Err(DecoderError::ShortData) => return Err(DemuxerError::EOF),
	321	_ => return Err(DemuxerError::InvalidData),
	322	};
	323	},
	324	};
	325	}
	326	},
90683bc3	327	DemuxerObject::ImageSequence(ref mut ctx) => ctx.get_frame(),
91a15e39 KS	328	_ => unreachable!(),
	329	}
	330	}
	331	pub fn seek(&mut self, seek_time: NATimePoint) -> DemuxerResult<()> {
	332	match *self {
4a835a2a KS	333	DemuxerObject::Normal(ref mut dmx) => dmx.get_object_mut().seek(seek_time),
4a835a2a KS	334	DemuxerObject::Raw(ref mut dmx, _, _) => dmx.get_object_mut().seek(seek_time),
90683bc3	335	DemuxerObject::ImageSequence(ref mut ctx) => ctx.seek(seek_time),
91a15e39 KS	336	_ => Err(DemuxerError::NotImplemented),
	337	}
	338	}
	339	}
	340
	341	impl<'a> NAOptionHandler for DemuxerObject<'a> {
	342	fn get_supported_options(&self) -> &[NAOptionDefinition] {
	343	match *self {
4a835a2a KS	344	DemuxerObject::Normal(ref dmx) => dmx.get_object().get_supported_options(),
4a835a2a KS	345	DemuxerObject::Raw(ref dmx, _, _) => dmx.get_object().get_supported_options(),
90683bc3	346	DemuxerObject::ImageSequence(ref ctx) => ctx.get_supported_options(),
91a15e39 KS	347	_ => &[],
	348	}
	349	}
	350	fn set_options(&mut self, options: &[NAOption]) {
	351	match *self {
4a835a2a KS	352	DemuxerObject::Normal(ref mut dmx) => dmx.get_object_mut().set_options(options),
4a835a2a KS	353	DemuxerObject::Raw(ref mut dmx, _, _) => dmx.get_object_mut().set_options(options),
90683bc3	354	DemuxerObject::ImageSequence(ref mut ctx) => ctx.set_options(options),
91a15e39 KS	355	_ => {},
	356	}
	357	}
	358	fn query_option_value(&self, name: &str) -> Option<NAValue> {
	359	match *self {
4a835a2a KS	360	DemuxerObject::Normal(ref dmx) => dmx.get_object().query_option_value(name),
4a835a2a KS	361	DemuxerObject::Raw(ref dmx, _, _) => dmx.get_object().query_option_value(name),
90683bc3	362	DemuxerObject::ImageSequence(ref ctx) => ctx.query_option_value(name),
91a15e39 KS	363	_ => None,
	364	}
	365	}
	366	}
	367
	368	pub fn detect_tags(br: &mut ByteReader) -> (bool, u64, Option<u64>) {
	369	let mut is_raw = false;
	370	let mut start = 0;
	371	let mut end = None;
	372
	373	// check for ID3v{2-4}
	374	let mut buf = [0; 5];
2b0a517e KS	375	if br.peek_buf(&mut buf).is_err() {
	376	return (false, 0, None);
	377	}
91a15e39 KS	378	if &buf[0..3] == b"ID3" && buf[3] > 0 && buf[3] < 5 && buf[4] == 0 { //ID3 tag found, must be a raw stream
	379	br.read_skip(6).unwrap();
	380	let mut size = 0;
	381	for _ in 0..4 {
	382	let b = br.read_byte().unwrap();
	383	if (b & 0x80) != 0 {
	384	println!("Invalid ID3 size");
	385	break;
	386	}
	387	size = (size << 7) \| u64::from(b);
	388	}
	389	start = size + 10;
	390	is_raw = true;
	391	}
	392	// check for ID3v1
	393	br.seek(SeekFrom::End(-128)).unwrap();
	394	let off = br.tell();
	395	br.peek_buf(&mut buf[..3]).unwrap();
	396	if &buf[0..3] == b"TAG" {
	397	end = Some(off);
	398	}
	399	// check for APETAG
	400	let mut buf = [0; 8];
	401	if let Some(off) = end {
	402	br.seek(SeekFrom::Start(off - 32)).unwrap();
	403	} else {
	404	br.seek(SeekFrom::End(-32)).unwrap();
	405	}
	406	let off = br.tell();
	407	br.read_buf(&mut buf).unwrap();
	408	if &buf == b"APETAGEX" {
	409	let ver = br.read_u32le().unwrap();
	410	let size = u64::from(br.read_u32le().unwrap());
	411	let _items = br.read_u32le().unwrap();
	412	let flags = br.read_u32le().unwrap();
	413	if ver == 1000 \|\| (flags & 0x80000000) == 0 {
	414	end = Some(off - size + 32);
	415	} else {
	416	end = Some(off - size);
	417	}
	418	}
	419
	420	(is_raw, start, end)
	421	}