2 use nihav_core::codecs::*;
3 use nihav_core::demuxers::*;
4 use nihav_registry::detect;
5 use nihav_core::io::byteio::ByteReader;
8 pub struct FullRegister {
9 pub dmx_reg: RegisteredDemuxers,
10 pub rdmx_reg: RegisteredRawDemuxers,
11 pub pkt_reg: RegisteredPacketisers,
12 pub dec_reg: RegisteredDecoders,
16 pub fn new() -> Self {
17 let mut dmx_reg = RegisteredDemuxers::new();
18 nihav_register_all_demuxers(&mut dmx_reg);
19 let mut rdmx_reg = RegisteredRawDemuxers::new();
20 nihav_register_all_raw_demuxers(&mut rdmx_reg);
21 let mut dec_reg = RegisteredDecoders::new();
22 nihav_register_all_decoders(&mut dec_reg);
23 let mut pkt_reg = RegisteredPacketisers::new();
24 nihav_register_all_packetisers(&mut pkt_reg);
25 Self { dmx_reg, rdmx_reg, pkt_reg, dec_reg }
29 pub enum DemuxerObject<'a> {
32 Raw(RawDemuxer<'a>, Vec<Option<Box<dyn NAPacketiser + Send>>>, bool),
33 RawStream(Box<dyn NAPacketiser + Send>, NAStreamRef, &'a mut ByteReader<'a>),
36 impl<'a> DemuxerObject<'a> {
37 pub fn create(br: &'a mut ByteReader<'a>, reg: &FullRegister, name: &str, is_raw: bool) -> DemuxerObject<'a> {
39 let res = detect::detect_format(name, br);
40 let (dmx_name, _) = res.unwrap_or(("", detect::DetectionScore::No));
42 println!("trying demuxer {} on {}", dmx_name, name);
43 if let Some(dmx_fact) = reg.dmx_reg.find_demuxer(dmx_name) {
44 br.seek(SeekFrom::Start(0)).unwrap();
45 let dmx = create_demuxer(dmx_fact, br).unwrap();
46 return DemuxerObject::Normal(dmx);
50 println!("trying raw demuxer {} on {}", dmx_name, name);
51 if let Some(rdmx_fact) = reg.rdmx_reg.find_demuxer(dmx_name) {
52 br.seek(SeekFrom::Start(0)).unwrap();
53 let dmx = create_raw_demuxer(rdmx_fact, br).unwrap();
54 let mut pkts = Vec::new();
55 for stream in dmx.get_streams() {
56 if let Some(pcreate) = reg.pkt_reg.find_packetiser(stream.get_info().get_name()) {
57 let packetiser = (pcreate)();
58 pkts.push(Some(packetiser));
63 return DemuxerObject::Raw(dmx, pkts, false);
66 for rdmx in reg.rdmx_reg.iter() {
67 if rdmx.check_format(br) {
68 println!("detected {} as {}", name, rdmx.get_name());
69 br.seek(SeekFrom::Start(0)).unwrap();
70 let dmx = create_raw_demuxer(*rdmx, br).unwrap();
71 let mut pkts = Vec::new();
72 for stream in dmx.get_streams() {
73 if let Some(pcreate) = reg.pkt_reg.find_packetiser(stream.get_info().get_name()) {
74 let packetiser = (pcreate)();
75 pkts.push(Some(packetiser));
80 return DemuxerObject::Raw(dmx, pkts, false);
84 br.seek(SeekFrom::Start(0)).unwrap();
85 let mut buf = vec![0; 1048576];
86 let size = br.peek_buf(&mut buf).unwrap();
89 for pinfo in reg.pkt_reg.iter() {
90 let mut packetiser = (pinfo.get_packetiser)();
91 packetiser.add_data(&buf[..size]);
92 if packetiser.parse_stream(0).is_ok() {
98 println!("found raw stream of type {} for {}", pname, name);
99 let pcreate = reg.pkt_reg.find_packetiser(pname).unwrap();
100 let mut packetiser = (pcreate)();
101 packetiser.add_data(&buf[..size]);
102 let stream = packetiser.parse_stream(0).unwrap();
104 DemuxerObject::RawStream(packetiser, stream, br)
109 pub fn is_none(&self) -> bool {
111 DemuxerObject::None => true,
115 pub fn get_duration(&self) -> u64 {
117 DemuxerObject::Normal(ref dmx) => dmx.get_duration(),
118 DemuxerObject::Raw(ref dmx, _, _) => dmx.get_duration(),
122 pub fn get_num_streams(&self) -> usize {
124 DemuxerObject::None => 0,
125 DemuxerObject::Normal(ref dmx) => dmx.get_num_streams(),
126 DemuxerObject::Raw(ref dmx, _, _) => dmx.get_num_streams(),
127 DemuxerObject::RawStream(_, _, _) => 1,
130 pub fn get_stream(&self, idx: usize) -> Option<NAStreamRef> {
132 DemuxerObject::Normal(ref dmx) => dmx.get_stream(idx),
133 DemuxerObject::Raw(ref dmx, _, _) => dmx.get_stream(idx),
134 DemuxerObject::RawStream(_, ref stream, _) if idx == 0 => Some(stream.clone()),
138 pub fn get_frame(&mut self) -> DemuxerResult<NAPacket> {
140 DemuxerObject::Normal(ref mut dmx) => dmx.get_frame(),
141 DemuxerObject::Raw(ref mut dmx, ref mut packetisers, ref mut eof) => {
143 let mut has_some = false;
144 for (stream, p) in dmx.get_streams().zip(packetisers.iter_mut()) {
145 if let Some(ref mut pkts) = p {
146 match pkts.get_packet(stream.clone()) {
147 Ok(Some(pkt)) => return Ok(pkt),
148 Ok(None) | Err(DecoderError::ShortData) => {
154 println!("packetisation error {:?}", err);
155 return Err(DemuxerError::InvalidData);
158 has_some |= p.is_some();
162 return Err(DemuxerError::EOF);
164 if let Ok(data) = dmx.get_data() {
165 let id = data.get_stream().get_id();
166 for (i, stream) in dmx.get_streams().enumerate() {
167 if stream.get_id() == id {
168 if let Some(ref mut pkts) = packetisers[i] {
169 pkts.add_data(&data.get_buffer());
179 DemuxerObject::RawStream(ref mut pkt, ref stream, ref mut br) => {
180 let mut buf = [0; 1048576];
182 match pkt.get_packet(stream.clone()) {
183 Ok(Some(packet)) => return Ok(packet),
185 Err(DecoderError::ShortData) => {},
186 _ => return Err(DemuxerError::InvalidData),
188 match br.read_buf_some(&mut buf) {
190 pkt.add_data(&buf[..size]);
193 match pkt.get_packet(stream.clone()) {
194 Ok(Some(packet)) => return Ok(packet),
195 Ok(None) | Err(DecoderError::ShortData) => return Err(DemuxerError::EOF),
196 _ => return Err(DemuxerError::InvalidData),
205 pub fn seek(&mut self, seek_time: NATimePoint) -> DemuxerResult<()> {
207 DemuxerObject::Normal(ref mut dmx) => dmx.seek(seek_time),
208 DemuxerObject::Raw(ref mut dmx, _, _) => dmx.seek(seek_time),
209 _ => Err(DemuxerError::NotImplemented),
214 pub fn detect_tags(br: &mut ByteReader) -> (bool, u64, Option<u64>) {
215 let mut is_raw = false;
219 // check for ID3v{2-4}
220 let mut buf = [0; 5];
221 br.peek_buf(&mut buf).unwrap();
222 if &buf[0..3] == b"ID3" && buf[3] > 0 && buf[3] < 5 && buf[4] == 0 { //ID3 tag found, must be a raw stream
223 br.read_skip(6).unwrap();
226 let b = br.read_byte().unwrap();
228 println!("Invalid ID3 size");
231 size = (size << 7) | u64::from(b);
237 br.seek(SeekFrom::End(-128)).unwrap();
239 br.peek_buf(&mut buf[..3]).unwrap();
240 if &buf[0..3] == b"TAG" {
244 let mut buf = [0; 8];
245 if let Some(off) = end {
246 br.seek(SeekFrom::Start(off - 32)).unwrap();
248 br.seek(SeekFrom::End(-32)).unwrap();
251 br.read_buf(&mut buf).unwrap();
252 if &buf == b"APETAGEX" {
253 let ver = br.read_u32le().unwrap();
254 let size = u64::from(br.read_u32le().unwrap());
255 let _items = br.read_u32le().unwrap();
256 let flags = br.read_u32le().unwrap();
257 if ver == 1000 || (flags & 0x80000000) == 0 {
258 end = Some(off - size + 32);
260 end = Some(off - size);