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