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55d3e99f KS |
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 | ||
e01dfa5a KS |
29 | pub struct RawStreamCtx<'a> { |
30 | stream: NAStreamRef, | |
31 | pkt: Box<dyn NAPacketiser + Send>, | |
32 | br: &'a mut ByteReader<'a>, | |
33 | pts: u64, | |
9ba5cad5 | 34 | seek: SeekIndex, |
e01dfa5a KS |
35 | } |
36 | ||
37 | impl<'a> RawStreamCtx<'a> { | |
38 | fn new(stream: NAStreamRef, packetiser: Box<dyn NAPacketiser + Send>, br: &'a mut ByteReader<'a>) -> Self { | |
9ba5cad5 KS |
39 | let mut seek = SeekIndex::new(); |
40 | seek.add_stream(0); | |
41 | Self { stream, pkt: packetiser, br, pts: 0, seek } | |
42 | } | |
43 | fn account_for_packet(&mut self, packet: &mut NAPacket) { | |
44 | let pos = self.br.tell() - (self.pkt.bytes_left() as u64); | |
45 | if packet.get_pts().is_none() && packet.get_duration().is_some() { | |
46 | packet.ts.pts = Some(self.pts); | |
47 | } | |
48 | if packet.is_keyframe() { | |
49 | let pts = packet.get_pts().unwrap_or(self.pts); | |
50 | let time = NATimeInfo::ts_to_time(pts, 1000, self.stream.tb_num, self.stream.tb_den); | |
51 | let in_range = if let Some(last) = self.seek.seek_info[0].entries.last() { | |
52 | last.pts >= pts | |
53 | } else { | |
54 | false | |
55 | }; | |
56 | if !in_range { | |
57 | self.seek.add_entry(0, SeekEntry { time, pts, pos }); | |
58 | } | |
59 | } | |
60 | self.pts += packet.get_duration().unwrap_or(0); | |
61 | } | |
62 | fn get_frame(&mut self) -> DemuxerResult<NAPacket> { | |
63 | let mut buf = [0; 1048576]; | |
64 | loop { | |
65 | match self.pkt.get_packet(self.stream.clone()) { | |
66 | Ok(Some(mut packet)) => { | |
67 | self.account_for_packet(&mut packet); | |
68 | return Ok(packet); | |
69 | }, | |
70 | Ok(None) => {}, | |
71 | Err(DecoderError::ShortData) => {}, | |
72 | _ => return Err(DemuxerError::InvalidData), | |
73 | }; | |
74 | match self.br.read_buf_some(&mut buf) { | |
75 | Ok(size) => { | |
76 | self.pkt.add_data(&buf[..size]); | |
77 | }, | |
78 | Err(_) => { | |
79 | match self.pkt.get_packet(self.stream.clone()) { | |
80 | Ok(Some(mut packet)) => { | |
81 | self.account_for_packet(&mut packet); | |
82 | return Ok(packet); | |
83 | }, | |
84 | Ok(None) | Err(DecoderError::ShortData) => return Err(DemuxerError::EOF), | |
85 | _ => return Err(DemuxerError::InvalidData), | |
86 | }; | |
87 | }, | |
88 | }; | |
89 | } | |
e01dfa5a KS |
90 | } |
91 | } | |
92 | ||
55d3e99f KS |
93 | pub enum DemuxerObject<'a> { |
94 | None, | |
95 | Normal(Demuxer<'a>), | |
96 | Raw(RawDemuxer<'a>, Vec<Option<Box<dyn NAPacketiser + Send>>>, bool), | |
e01dfa5a | 97 | RawStream(RawStreamCtx<'a>), |
55d3e99f KS |
98 | } |
99 | ||
100 | impl<'a> DemuxerObject<'a> { | |
081797c7 | 101 | pub fn create(br: &'a mut ByteReader<'a>, reg: &FullRegister, name: &str, force_dmx: Option<&str>, is_raw: bool, opts: &[NAOption]) -> DemuxerObject<'a> { |
55d3e99f KS |
102 | if !is_raw { |
103 | let res = detect::detect_format(name, br); | |
8a8f6e5c KS |
104 | if let Some(dmx_name) = force_dmx { |
105 | println!("forcing demuxer {} on {}", dmx_name, name); | |
106 | if let Some(dmx_fact) = reg.dmx_reg.find_demuxer(dmx_name) { | |
107 | br.seek(SeekFrom::Start(0)).unwrap(); | |
081797c7 | 108 | let dmx = create_demuxer_with_options(dmx_fact, br, opts).unwrap(); |
8a8f6e5c KS |
109 | return DemuxerObject::Normal(dmx); |
110 | } else { | |
111 | return DemuxerObject::None | |
112 | } | |
113 | } | |
55d3e99f | 114 | let (dmx_name, _) = res.unwrap_or(("", detect::DetectionScore::No)); |
b338b484 | 115 | if !dmx_name.is_empty() { |
55d3e99f KS |
116 | println!("trying demuxer {} on {}", dmx_name, name); |
117 | if let Some(dmx_fact) = reg.dmx_reg.find_demuxer(dmx_name) { | |
118 | br.seek(SeekFrom::Start(0)).unwrap(); | |
081797c7 | 119 | let dmx = create_demuxer_with_options(dmx_fact, br, opts).unwrap(); |
55d3e99f KS |
120 | return DemuxerObject::Normal(dmx); |
121 | } | |
122 | } | |
b338b484 | 123 | if !dmx_name.is_empty() { |
55d3e99f KS |
124 | println!("trying raw demuxer {} on {}", dmx_name, name); |
125 | if let Some(rdmx_fact) = reg.rdmx_reg.find_demuxer(dmx_name) { | |
126 | br.seek(SeekFrom::Start(0)).unwrap(); | |
081797c7 | 127 | let dmx = create_raw_demuxer_with_options(rdmx_fact, br, opts).unwrap(); |
55d3e99f KS |
128 | let mut pkts = Vec::new(); |
129 | for stream in dmx.get_streams() { | |
130 | if let Some(pcreate) = reg.pkt_reg.find_packetiser(stream.get_info().get_name()) { | |
240018e1 KS |
131 | let mut packetiser = (pcreate)(); |
132 | packetiser.attach_stream(stream); | |
55d3e99f KS |
133 | pkts.push(Some(packetiser)); |
134 | } else { | |
135 | pkts.push(None); | |
136 | } | |
137 | } | |
138 | return DemuxerObject::Raw(dmx, pkts, false); | |
139 | } | |
140 | } | |
141 | for rdmx in reg.rdmx_reg.iter() { | |
142 | if rdmx.check_format(br) { | |
143 | println!("detected {} as {}", name, rdmx.get_name()); | |
144 | br.seek(SeekFrom::Start(0)).unwrap(); | |
081797c7 | 145 | let dmx = create_raw_demuxer_with_options(*rdmx, br, opts).unwrap(); |
55d3e99f KS |
146 | let mut pkts = Vec::new(); |
147 | for stream in dmx.get_streams() { | |
148 | if let Some(pcreate) = reg.pkt_reg.find_packetiser(stream.get_info().get_name()) { | |
149 | let packetiser = (pcreate)(); | |
150 | pkts.push(Some(packetiser)); | |
151 | } else { | |
152 | pkts.push(None); | |
153 | } | |
154 | } | |
155 | return DemuxerObject::Raw(dmx, pkts, false); | |
156 | } | |
157 | } | |
158 | } | |
159 | br.seek(SeekFrom::Start(0)).unwrap(); | |
160 | let mut buf = vec![0; 1048576]; | |
1517a97d KS |
161 | let size = br.read_buf_some(&mut buf).unwrap(); |
162 | br.seek(SeekFrom::Start(0)).unwrap(); | |
55d3e99f KS |
163 | let mut pname = ""; |
164 | ||
165 | for pinfo in reg.pkt_reg.iter() { | |
166 | let mut packetiser = (pinfo.get_packetiser)(); | |
167 | packetiser.add_data(&buf[..size]); | |
168 | if packetiser.parse_stream(0).is_ok() { | |
169 | pname = pinfo.name; | |
170 | break; | |
171 | } | |
172 | } | |
b338b484 | 173 | if !pname.is_empty() { |
55d3e99f KS |
174 | println!("found raw stream of type {} for {}", pname, name); |
175 | let pcreate = reg.pkt_reg.find_packetiser(pname).unwrap(); | |
176 | let mut packetiser = (pcreate)(); | |
177 | packetiser.add_data(&buf[..size]); | |
178 | let stream = packetiser.parse_stream(0).unwrap(); | |
179 | packetiser.reset(); | |
e01dfa5a | 180 | DemuxerObject::RawStream(RawStreamCtx::new(stream, packetiser, br)) |
55d3e99f KS |
181 | } else { |
182 | DemuxerObject::None | |
183 | } | |
184 | } | |
185 | pub fn is_none(&self) -> bool { | |
b338b484 | 186 | matches!(*self, DemuxerObject::None) |
55d3e99f KS |
187 | } |
188 | pub fn get_duration(&self) -> u64 { | |
189 | match *self { | |
190 | DemuxerObject::Normal(ref dmx) => dmx.get_duration(), | |
191 | DemuxerObject::Raw(ref dmx, _, _) => dmx.get_duration(), | |
1c5de8c5 KS |
192 | DemuxerObject::RawStream(ref ctx) => { |
193 | NATimeInfo::ts_to_time(ctx.stream.duration, 1000, ctx.stream.tb_num, ctx.stream.tb_den) | |
194 | }, | |
55d3e99f KS |
195 | _ => 0, |
196 | } | |
197 | } | |
198 | pub fn get_num_streams(&self) -> usize { | |
199 | match *self { | |
200 | DemuxerObject::None => 0, | |
201 | DemuxerObject::Normal(ref dmx) => dmx.get_num_streams(), | |
202 | DemuxerObject::Raw(ref dmx, _, _) => dmx.get_num_streams(), | |
e01dfa5a | 203 | DemuxerObject::RawStream(_) => 1, |
55d3e99f KS |
204 | } |
205 | } | |
206 | pub fn get_stream(&self, idx: usize) -> Option<NAStreamRef> { | |
207 | match *self { | |
208 | DemuxerObject::Normal(ref dmx) => dmx.get_stream(idx), | |
209 | DemuxerObject::Raw(ref dmx, _, _) => dmx.get_stream(idx), | |
e01dfa5a | 210 | DemuxerObject::RawStream(ref ctx) if idx == 0 => Some(ctx.stream.clone()), |
55d3e99f KS |
211 | _ => None, |
212 | } | |
213 | } | |
214 | pub fn get_frame(&mut self) -> DemuxerResult<NAPacket> { | |
215 | match *self { | |
216 | DemuxerObject::Normal(ref mut dmx) => dmx.get_frame(), | |
217 | DemuxerObject::Raw(ref mut dmx, ref mut packetisers, ref mut eof) => { | |
218 | loop { | |
219 | let mut has_some = false; | |
220 | for (stream, p) in dmx.get_streams().zip(packetisers.iter_mut()) { | |
221 | if let Some(ref mut pkts) = p { | |
222 | match pkts.get_packet(stream.clone()) { | |
223 | Ok(Some(pkt)) => return Ok(pkt), | |
224 | Ok(None) | Err(DecoderError::ShortData) => { | |
225 | if *eof { | |
226 | *p = None; | |
227 | } | |
228 | }, | |
229 | Err(err) => { | |
230 | println!("packetisation error {:?}", err); | |
231 | return Err(DemuxerError::InvalidData); | |
232 | } | |
233 | }; | |
234 | has_some |= p.is_some(); | |
235 | } | |
236 | } | |
237 | if !has_some { | |
238 | return Err(DemuxerError::EOF); | |
239 | } | |
240 | if let Ok(data) = dmx.get_data() { | |
241 | let id = data.get_stream().get_id(); | |
242 | for (i, stream) in dmx.get_streams().enumerate() { | |
243 | if stream.get_id() == id { | |
244 | if let Some(ref mut pkts) = packetisers[i] { | |
245 | pkts.add_data(&data.get_buffer()); | |
246 | } | |
247 | break; | |
248 | } | |
249 | } | |
250 | } else { | |
251 | *eof = true; | |
252 | } | |
253 | } | |
254 | }, | |
9ba5cad5 | 255 | DemuxerObject::RawStream(ref mut ctx) => ctx.get_frame(), |
55d3e99f KS |
256 | _ => unreachable!(), |
257 | } | |
258 | } | |
259 | pub fn seek(&mut self, seek_time: NATimePoint) -> DemuxerResult<()> { | |
260 | match *self { | |
261 | DemuxerObject::Normal(ref mut dmx) => dmx.seek(seek_time), | |
262 | DemuxerObject::Raw(ref mut dmx, _, _) => dmx.seek(seek_time), | |
9ba5cad5 KS |
263 | DemuxerObject::RawStream(ref mut ctx) => { |
264 | if seek_time == NATimePoint::None { | |
265 | return Err(DemuxerError::SeekError); | |
266 | } | |
267 | if let Some(last) = ctx.seek.seek_info[0].entries.last() { | |
268 | let in_index = match seek_time { | |
269 | NATimePoint::None => unreachable!(), | |
270 | NATimePoint::PTS(pts) => last.pts >= pts, | |
271 | NATimePoint::Milliseconds(ms) => last.time >= ms, | |
272 | }; | |
273 | if in_index { | |
274 | if let Some(result) = ctx.seek.find_pos(seek_time) { | |
275 | ctx.br.seek(SeekFrom::Start(result.pos))?; | |
276 | ctx.pts = result.pts; | |
277 | ctx.pkt.reset(); | |
278 | return Ok(()); | |
279 | } | |
280 | } | |
281 | } | |
282 | if let Some(last) = ctx.seek.seek_info[0].entries.last() { | |
283 | ctx.br.seek(SeekFrom::Start(last.pos))?; | |
284 | ctx.pts = last.pts; | |
285 | ctx.pkt.reset(); | |
286 | } | |
287 | let mut key_pts = 0; | |
288 | while let Ok(pkt) = ctx.get_frame() { | |
289 | if !pkt.ts.less_than(seek_time) && !pkt.ts.equal(seek_time) { | |
290 | break; | |
291 | } | |
292 | if pkt.is_keyframe() { | |
293 | key_pts = pkt.get_pts().unwrap_or(0); | |
294 | } | |
295 | } | |
296 | let result = ctx.seek.find_pos(NATimePoint::PTS(key_pts)).unwrap(); | |
297 | ctx.br.seek(SeekFrom::Start(result.pos))?; | |
298 | ctx.pts = result.pts; | |
299 | ctx.pkt.reset(); | |
300 | Ok(()) | |
301 | }, | |
55d3e99f KS |
302 | _ => Err(DemuxerError::NotImplemented), |
303 | } | |
304 | } | |
305 | } | |
306 | ||
307 | pub fn detect_tags(br: &mut ByteReader) -> (bool, u64, Option<u64>) { | |
308 | let mut is_raw = false; | |
309 | let mut start = 0; | |
310 | let mut end = None; | |
311 | ||
312 | // check for ID3v{2-4} | |
313 | let mut buf = [0; 5]; | |
18f43812 KS |
314 | loop { |
315 | if br.peek_buf(&mut buf).is_err() { | |
316 | break; | |
317 | } | |
318 | if &buf[0..3] == b"ID3" && buf[3] > 0 && buf[3] < 5 && buf[4] == 0 { //ID3 tag found, must be a raw stream | |
319 | br.read_skip(6).unwrap(); | |
320 | let mut size = 0; | |
321 | for _ in 0..4 { | |
322 | let b = br.read_byte().unwrap(); | |
323 | if (b & 0x80) != 0 { | |
324 | println!("Invalid ID3 size"); | |
325 | break; | |
326 | } | |
327 | size = (size << 7) | u64::from(b); | |
55d3e99f | 328 | } |
18f43812 KS |
329 | start += size + 10; |
330 | br.read_skip(size as usize).unwrap(); | |
dd612d55 KS |
331 | while let Ok(0) = br.read_byte() { |
332 | start += 1; | |
333 | } | |
334 | br.seek(SeekFrom::Start(start)).unwrap(); | |
18f43812 KS |
335 | is_raw = true; |
336 | } else { | |
337 | break; | |
55d3e99f | 338 | } |
55d3e99f KS |
339 | } |
340 | // check for ID3v1 | |
341 | br.seek(SeekFrom::End(-128)).unwrap(); | |
342 | let off = br.tell(); | |
343 | br.peek_buf(&mut buf[..3]).unwrap(); | |
344 | if &buf[0..3] == b"TAG" { | |
345 | end = Some(off); | |
18f43812 KS |
346 | // check for Lyrics v2 |
347 | let mut sig = [0; 9]; | |
348 | br.seek(SeekFrom::End(-128 - 9)).unwrap(); | |
349 | br.peek_buf(&mut sig).unwrap(); | |
350 | if &sig == b"LYRICS200" { | |
351 | br.seek(SeekFrom::Current(-6)).unwrap(); | |
352 | let mut sizestr = [0; 6]; | |
353 | br.peek_buf(&mut sizestr).unwrap(); | |
354 | if let Ok(sstr) = std::str::from_utf8(&sizestr) { | |
355 | if let Ok(size) = sstr.parse::<u64>() { | |
356 | end = Some(br.tell() - size); | |
357 | } | |
358 | } | |
359 | } | |
55d3e99f KS |
360 | } |
361 | // check for APETAG | |
362 | let mut buf = [0; 8]; | |
363 | if let Some(off) = end { | |
364 | br.seek(SeekFrom::Start(off - 32)).unwrap(); | |
365 | } else { | |
366 | br.seek(SeekFrom::End(-32)).unwrap(); | |
367 | } | |
368 | let off = br.tell(); | |
369 | br.read_buf(&mut buf).unwrap(); | |
370 | if &buf == b"APETAGEX" { | |
371 | let ver = br.read_u32le().unwrap(); | |
372 | let size = u64::from(br.read_u32le().unwrap()); | |
373 | let _items = br.read_u32le().unwrap(); | |
374 | let flags = br.read_u32le().unwrap(); | |
375 | if ver == 1000 || (flags & 0x80000000) == 0 { | |
376 | end = Some(off - size + 32); | |
377 | } else { | |
378 | end = Some(off - size); | |
379 | } | |
380 | } | |
62379cdc KS |
381 | // check for MusicMatch tag |
382 | let ret = if let Some(endpos) = end { | |
383 | br.seek(SeekFrom::Start(endpos - 0x30)) | |
384 | } else { | |
385 | br.seek(SeekFrom::End(-0x30)) | |
386 | }; | |
387 | if ret.is_ok() && br.tell() > (0x2000 - 0x30) { | |
388 | let mut buf = [0; 19]; | |
389 | br.peek_buf(&mut buf).unwrap(); | |
390 | if &buf == b"Brava Software Inc." { | |
391 | br.seek(SeekFrom::Current(-20)).unwrap(); | |
392 | let mut mm_start = u64::from(br.read_u32le().unwrap()); | |
393 | if mm_start > 4 && mm_start + 0x2000 <= br.tell() { | |
394 | let diff = (br.tell() - mm_start) & 3; | |
395 | if diff != 0 { | |
396 | mm_start -= 4 - diff; | |
397 | } | |
398 | end = Some(mm_start); | |
399 | } | |
400 | } | |
401 | } | |
55d3e99f KS |
402 | |
403 | (is_raw, start, end) | |
404 | } |