2 use nihav_core::codecs::*;
3 use nihav_core::demuxers::*;
4 use nihav_registry::detect;
5 use nihav_core::io::byteio::ByteReader;
6 use super::allreg::FullRegister;
8 pub enum DemuxerObject<'a> {
11 Raw(RawDemuxer<'a>, Vec<Option<Box<dyn NAPacketiser + Send>>>, bool),
12 RawStream(Box<dyn NAPacketiser + Send>, NAStreamRef, &'a mut ByteReader<'a>),
15 impl<'a> DemuxerObject<'a> {
16 pub fn create(br: &'a mut ByteReader<'a>, reg: &FullRegister, name: &str, is_raw: bool) -> DemuxerObject<'a> {
18 let res = detect::detect_format(name, br);
19 let (dmx_name, _) = res.unwrap_or(("", detect::DetectionScore::No));
21 println!("trying demuxer {} on {}", dmx_name, name);
22 if let Some(dmx_fact) = reg.dmx_reg.find_demuxer(dmx_name) {
23 br.seek(SeekFrom::Start(0)).unwrap();
24 let dmx = create_demuxer(dmx_fact, br).unwrap();
25 return DemuxerObject::Normal(dmx);
29 println!("trying raw demuxer {} on {}", dmx_name, name);
30 if let Some(rdmx_fact) = reg.rdmx_reg.find_demuxer(dmx_name) {
31 br.seek(SeekFrom::Start(0)).unwrap();
32 let dmx = create_raw_demuxer(rdmx_fact, br).unwrap();
33 let mut pkts = Vec::new();
34 for stream in dmx.get_streams() {
35 if let Some(pcreate) = reg.pkt_reg.find_packetiser(stream.get_info().get_name()) {
36 let packetiser = (pcreate)();
37 pkts.push(Some(packetiser));
42 return DemuxerObject::Raw(dmx, pkts, false);
45 for rdmx in reg.rdmx_reg.iter() {
46 if rdmx.check_format(br) {
47 println!("detected {} as {}", name, rdmx.get_name());
48 br.seek(SeekFrom::Start(0)).unwrap();
49 let dmx = create_raw_demuxer(*rdmx, br).unwrap();
50 let mut pkts = Vec::new();
51 for stream in dmx.get_streams() {
52 if let Some(pcreate) = reg.pkt_reg.find_packetiser(stream.get_info().get_name()) {
53 let packetiser = (pcreate)();
54 pkts.push(Some(packetiser));
59 return DemuxerObject::Raw(dmx, pkts, false);
63 br.seek(SeekFrom::Start(0)).unwrap();
64 let mut buf = vec![0; 1048576];
65 let size = br.peek_buf(&mut buf).unwrap();
68 for pinfo in reg.pkt_reg.iter() {
69 let mut packetiser = (pinfo.get_packetiser)();
70 packetiser.add_data(&buf[..size]);
71 if packetiser.parse_stream(0).is_ok() {
77 println!("found raw stream of type {} for {}", pname, name);
78 let pcreate = reg.pkt_reg.find_packetiser(pname).unwrap();
79 let mut packetiser = (pcreate)();
80 packetiser.add_data(&buf[..size]);
81 let stream = packetiser.parse_stream(0).unwrap();
83 DemuxerObject::RawStream(packetiser, stream, br)
88 pub fn is_none(&self) -> bool {
90 DemuxerObject::None => true,
94 pub fn get_duration(&self) -> u64 {
96 DemuxerObject::Normal(ref dmx) => dmx.get_duration(),
97 DemuxerObject::Raw(ref dmx, _, _) => dmx.get_duration(),
101 pub fn get_num_streams(&self) -> usize {
103 DemuxerObject::None => 0,
104 DemuxerObject::Normal(ref dmx) => dmx.get_num_streams(),
105 DemuxerObject::Raw(ref dmx, _, _) => dmx.get_num_streams(),
106 DemuxerObject::RawStream(_, _, _) => 1,
109 pub fn get_stream(&self, idx: usize) -> Option<NAStreamRef> {
111 DemuxerObject::Normal(ref dmx) => dmx.get_stream(idx),
112 DemuxerObject::Raw(ref dmx, _, _) => dmx.get_stream(idx),
113 DemuxerObject::RawStream(_, ref stream, _) if idx == 0 => Some(stream.clone()),
117 pub fn get_frame(&mut self) -> DemuxerResult<NAPacket> {
119 DemuxerObject::Normal(ref mut dmx) => dmx.get_frame(),
120 DemuxerObject::Raw(ref mut dmx, ref mut packetisers, ref mut eof) => {
122 let mut has_some = false;
123 for (stream, p) in dmx.get_streams().zip(packetisers.iter_mut()) {
124 if let Some(ref mut pkts) = p {
125 match pkts.get_packet(stream.clone()) {
126 Ok(Some(pkt)) => return Ok(pkt),
127 Ok(None) | Err(DecoderError::ShortData) => {
133 println!("packetisation error {:?}", err);
134 return Err(DemuxerError::InvalidData);
137 has_some |= p.is_some();
141 return Err(DemuxerError::EOF);
143 if let Ok(data) = dmx.get_data() {
144 let id = data.get_stream().get_id();
145 for (i, stream) in dmx.get_streams().enumerate() {
146 if stream.get_id() == id {
147 if let Some(ref mut pkts) = packetisers[i] {
148 pkts.add_data(&data.get_buffer());
158 DemuxerObject::RawStream(ref mut pkt, ref stream, ref mut br) => {
159 let mut buf = [0; 1048576];
161 match pkt.get_packet(stream.clone()) {
162 Ok(Some(packet)) => return Ok(packet),
164 Err(DecoderError::ShortData) => {},
165 _ => return Err(DemuxerError::InvalidData),
167 match br.read_buf_some(&mut buf) {
169 pkt.add_data(&buf[..size]);
172 match pkt.get_packet(stream.clone()) {
173 Ok(Some(packet)) => return Ok(packet),
174 Ok(None) | Err(DecoderError::ShortData) => return Err(DemuxerError::EOF),
175 _ => return Err(DemuxerError::InvalidData),
184 pub fn seek(&mut self, seek_time: NATimePoint) -> DemuxerResult<()> {
186 DemuxerObject::Normal(ref mut dmx) => dmx.seek(seek_time),
187 DemuxerObject::Raw(ref mut dmx, _, _) => dmx.seek(seek_time),
188 _ => Err(DemuxerError::NotImplemented),
193 pub fn detect_tags(br: &mut ByteReader) -> (bool, u64, Option<u64>) {
194 let mut is_raw = false;
198 // check for ID3v{2-4}
199 let mut buf = [0; 5];
200 br.peek_buf(&mut buf).unwrap();
201 if &buf[0..3] == b"ID3" && buf[3] > 0 && buf[3] < 5 && buf[4] == 0 { //ID3 tag found, must be a raw stream
202 br.read_skip(6).unwrap();
205 let b = br.read_byte().unwrap();
207 println!("Invalid ID3 size");
210 size = (size << 7) | u64::from(b);
216 br.seek(SeekFrom::End(-128)).unwrap();
218 br.peek_buf(&mut buf[..3]).unwrap();
219 if &buf[0..3] == b"TAG" {
223 let mut buf = [0; 8];
224 if let Some(off) = end {
225 br.seek(SeekFrom::Start(off - 32)).unwrap();
227 br.seek(SeekFrom::End(-32)).unwrap();
230 br.read_buf(&mut buf).unwrap();
231 if &buf == b"APETAGEX" {
232 let ver = br.read_u32le().unwrap();
233 let size = u64::from(br.read_u32le().unwrap());
234 let _items = br.read_u32le().unwrap();
235 let flags = br.read_u32le().unwrap();
236 if ver == 1000 || (flags & 0x80000000) == 0 {
237 end = Some(off - size + 32);
239 end = Some(off - size);