| 1 | use std::io::SeekFrom; |
| 2 | use nihav_core::codecs::*; |
| 3 | use nihav_core::demuxers::*; |
| 4 | use nihav_registry::detect; |
| 5 | use nihav_core::io::byteio::ByteReader; |
| 6 | use nihav_allstuff::*; |
| 7 | |
| 8 | pub struct FullRegister { |
| 9 | pub dmx_reg: RegisteredDemuxers, |
| 10 | pub rdmx_reg: RegisteredRawDemuxers, |
| 11 | pub pkt_reg: RegisteredPacketisers, |
| 12 | pub dec_reg: RegisteredDecoders, |
| 13 | } |
| 14 | |
| 15 | impl FullRegister { |
| 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 } |
| 26 | } |
| 27 | } |
| 28 | |
| 29 | pub enum DemuxerObject<'a> { |
| 30 | None, |
| 31 | Normal(Demuxer<'a>), |
| 32 | Raw(RawDemuxer<'a>, Vec<Option<Box<dyn NAPacketiser + Send>>>, bool), |
| 33 | RawStream(Box<dyn NAPacketiser + Send>, NAStreamRef, &'a mut ByteReader<'a>), |
| 34 | } |
| 35 | |
| 36 | impl<'a> DemuxerObject<'a> { |
| 37 | pub fn create(br: &'a mut ByteReader<'a>, reg: &FullRegister, name: &str, is_raw: bool) -> DemuxerObject<'a> { |
| 38 | if !is_raw { |
| 39 | let res = detect::detect_format(name, br); |
| 40 | let (dmx_name, _) = res.unwrap_or(("", detect::DetectionScore::No)); |
| 41 | if dmx_name != "" { |
| 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); |
| 47 | } |
| 48 | } |
| 49 | if dmx_name != "" { |
| 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)); |
| 59 | } else { |
| 60 | pkts.push(None); |
| 61 | } |
| 62 | } |
| 63 | return DemuxerObject::Raw(dmx, pkts, false); |
| 64 | } |
| 65 | } |
| 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)); |
| 76 | } else { |
| 77 | pkts.push(None); |
| 78 | } |
| 79 | } |
| 80 | return DemuxerObject::Raw(dmx, pkts, false); |
| 81 | } |
| 82 | } |
| 83 | } |
| 84 | br.seek(SeekFrom::Start(0)).unwrap(); |
| 85 | let mut buf = vec![0; 1048576]; |
| 86 | let size = br.peek_buf(&mut buf).unwrap(); |
| 87 | let mut pname = ""; |
| 88 | |
| 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() { |
| 93 | pname = pinfo.name; |
| 94 | break; |
| 95 | } |
| 96 | } |
| 97 | if pname != "" { |
| 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(); |
| 103 | packetiser.reset(); |
| 104 | DemuxerObject::RawStream(packetiser, stream, br) |
| 105 | } else { |
| 106 | DemuxerObject::None |
| 107 | } |
| 108 | } |
| 109 | pub fn is_none(&self) -> bool { |
| 110 | match *self { |
| 111 | DemuxerObject::None => true, |
| 112 | _ => false, |
| 113 | } |
| 114 | } |
| 115 | pub fn get_duration(&self) -> u64 { |
| 116 | match *self { |
| 117 | DemuxerObject::Normal(ref dmx) => dmx.get_duration(), |
| 118 | DemuxerObject::Raw(ref dmx, _, _) => dmx.get_duration(), |
| 119 | _ => 0, |
| 120 | } |
| 121 | } |
| 122 | pub fn get_num_streams(&self) -> usize { |
| 123 | match *self { |
| 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, |
| 128 | } |
| 129 | } |
| 130 | pub fn get_stream(&self, idx: usize) -> Option<NAStreamRef> { |
| 131 | match *self { |
| 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()), |
| 135 | _ => None, |
| 136 | } |
| 137 | } |
| 138 | pub fn get_frame(&mut self) -> DemuxerResult<NAPacket> { |
| 139 | match *self { |
| 140 | DemuxerObject::Normal(ref mut dmx) => dmx.get_frame(), |
| 141 | DemuxerObject::Raw(ref mut dmx, ref mut packetisers, ref mut eof) => { |
| 142 | loop { |
| 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) => { |
| 149 | if *eof { |
| 150 | *p = None; |
| 151 | } |
| 152 | }, |
| 153 | Err(err) => { |
| 154 | println!("packetisation error {:?}", err); |
| 155 | return Err(DemuxerError::InvalidData); |
| 156 | } |
| 157 | }; |
| 158 | has_some |= p.is_some(); |
| 159 | } |
| 160 | } |
| 161 | if !has_some { |
| 162 | return Err(DemuxerError::EOF); |
| 163 | } |
| 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()); |
| 170 | } |
| 171 | break; |
| 172 | } |
| 173 | } |
| 174 | } else { |
| 175 | *eof = true; |
| 176 | } |
| 177 | } |
| 178 | }, |
| 179 | DemuxerObject::RawStream(ref mut pkt, ref stream, ref mut br) => { |
| 180 | let mut buf = [0; 1048576]; |
| 181 | loop { |
| 182 | match pkt.get_packet(stream.clone()) { |
| 183 | Ok(Some(packet)) => return Ok(packet), |
| 184 | Ok(None) => {}, |
| 185 | Err(DecoderError::ShortData) => {}, |
| 186 | _ => return Err(DemuxerError::InvalidData), |
| 187 | }; |
| 188 | match br.read_buf_some(&mut buf) { |
| 189 | Ok(size) => { |
| 190 | pkt.add_data(&buf[..size]); |
| 191 | }, |
| 192 | Err(_) => { |
| 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), |
| 197 | }; |
| 198 | }, |
| 199 | }; |
| 200 | } |
| 201 | }, |
| 202 | _ => unreachable!(), |
| 203 | } |
| 204 | } |
| 205 | pub fn seek(&mut self, seek_time: NATimePoint) -> DemuxerResult<()> { |
| 206 | match *self { |
| 207 | DemuxerObject::Normal(ref mut dmx) => dmx.seek(seek_time), |
| 208 | DemuxerObject::Raw(ref mut dmx, _, _) => dmx.seek(seek_time), |
| 209 | _ => Err(DemuxerError::NotImplemented), |
| 210 | } |
| 211 | } |
| 212 | } |
| 213 | |
| 214 | pub fn detect_tags(br: &mut ByteReader) -> (bool, u64, Option<u64>) { |
| 215 | let mut is_raw = false; |
| 216 | let mut start = 0; |
| 217 | let mut end = None; |
| 218 | |
| 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(); |
| 224 | let mut size = 0; |
| 225 | for _ in 0..4 { |
| 226 | let b = br.read_byte().unwrap(); |
| 227 | if (b & 0x80) != 0 { |
| 228 | println!("Invalid ID3 size"); |
| 229 | break; |
| 230 | } |
| 231 | size = (size << 7) | u64::from(b); |
| 232 | } |
| 233 | start = size + 10; |
| 234 | is_raw = true; |
| 235 | } |
| 236 | // check for ID3v1 |
| 237 | br.seek(SeekFrom::End(-128)).unwrap(); |
| 238 | let off = br.tell(); |
| 239 | br.peek_buf(&mut buf[..3]).unwrap(); |
| 240 | if &buf[0..3] == b"TAG" { |
| 241 | end = Some(off); |
| 242 | } |
| 243 | // check for APETAG |
| 244 | let mut buf = [0; 8]; |
| 245 | if let Some(off) = end { |
| 246 | br.seek(SeekFrom::Start(off - 32)).unwrap(); |
| 247 | } else { |
| 248 | br.seek(SeekFrom::End(-32)).unwrap(); |
| 249 | } |
| 250 | let off = br.tell(); |
| 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); |
| 259 | } else { |
| 260 | end = Some(off - size); |
| 261 | } |
| 262 | } |
| 263 | |
| 264 | (is_raw, start, end) |
| 265 | } |