Commit | Line | Data |
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e08bbe03 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 super::allreg::FullRegister; | |
7 | ||
8 | pub enum DemuxerObject<'a> { | |
9 | None, | |
10 | Normal(Demuxer<'a>), | |
11 | Raw(RawDemuxer<'a>, Vec<Option<Box<dyn NAPacketiser + Send>>>, bool), | |
12 | RawStream(Box<dyn NAPacketiser + Send>, NAStreamRef, &'a mut ByteReader<'a>), | |
13 | } | |
14 | ||
15 | impl<'a> DemuxerObject<'a> { | |
16 | pub fn create(br: &'a mut ByteReader<'a>, reg: &FullRegister, name: &str, is_raw: bool) -> DemuxerObject<'a> { | |
17 | if !is_raw { | |
18 | let res = detect::detect_format(name, br); | |
19 | let (dmx_name, _) = res.unwrap_or(("", detect::DetectionScore::No)); | |
20 | if dmx_name != "" { | |
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); | |
26 | } | |
27 | } | |
28 | if dmx_name != "" { | |
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)); | |
38 | } else { | |
39 | pkts.push(None); | |
40 | } | |
41 | } | |
42 | return DemuxerObject::Raw(dmx, pkts, false); | |
43 | } | |
44 | } | |
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)); | |
55 | } else { | |
56 | pkts.push(None); | |
57 | } | |
58 | } | |
59 | return DemuxerObject::Raw(dmx, pkts, false); | |
60 | } | |
61 | } | |
62 | } | |
63 | br.seek(SeekFrom::Start(0)).unwrap(); | |
64 | let mut buf = vec![0; 1048576]; | |
65 | let size = br.peek_buf(&mut buf).unwrap(); | |
66 | let mut pname = ""; | |
67 | ||
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() { | |
72 | pname = pinfo.name; | |
73 | break; | |
74 | } | |
75 | } | |
76 | if pname != "" { | |
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(); | |
82 | packetiser.reset(); | |
83 | DemuxerObject::RawStream(packetiser, stream, br) | |
84 | } else { | |
85 | DemuxerObject::None | |
86 | } | |
87 | } | |
88 | pub fn is_none(&self) -> bool { | |
89 | match *self { | |
90 | DemuxerObject::None => true, | |
91 | _ => false, | |
92 | } | |
93 | } | |
94 | pub fn get_duration(&self) -> u64 { | |
95 | match *self { | |
96 | DemuxerObject::Normal(ref dmx) => dmx.get_duration(), | |
97 | DemuxerObject::Raw(ref dmx, _, _) => dmx.get_duration(), | |
98 | _ => 0, | |
99 | } | |
100 | } | |
101 | pub fn get_num_streams(&self) -> usize { | |
102 | match *self { | |
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, | |
107 | } | |
108 | } | |
109 | pub fn get_stream(&self, idx: usize) -> Option<NAStreamRef> { | |
110 | match *self { | |
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()), | |
114 | _ => None, | |
115 | } | |
116 | } | |
117 | pub fn get_frame(&mut self) -> DemuxerResult<NAPacket> { | |
118 | match *self { | |
119 | DemuxerObject::Normal(ref mut dmx) => dmx.get_frame(), | |
120 | DemuxerObject::Raw(ref mut dmx, ref mut packetisers, ref mut eof) => { | |
121 | loop { | |
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) => { | |
128 | if *eof { | |
129 | *p = None; | |
130 | } | |
131 | }, | |
132 | Err(err) => { | |
133 | println!("packetisation error {:?}", err); | |
134 | return Err(DemuxerError::InvalidData); | |
135 | } | |
136 | }; | |
137 | has_some |= p.is_some(); | |
138 | } | |
139 | } | |
140 | if !has_some { | |
141 | return Err(DemuxerError::EOF); | |
142 | } | |
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()); | |
149 | } | |
150 | break; | |
151 | } | |
152 | } | |
153 | } else { | |
154 | *eof = true; | |
155 | } | |
156 | } | |
157 | }, | |
158 | DemuxerObject::RawStream(ref mut pkt, ref stream, ref mut br) => { | |
159 | let mut buf = [0; 1048576]; | |
160 | loop { | |
161 | match pkt.get_packet(stream.clone()) { | |
162 | Ok(Some(packet)) => return Ok(packet), | |
163 | Ok(None) => {}, | |
164 | Err(DecoderError::ShortData) => {}, | |
165 | _ => return Err(DemuxerError::InvalidData), | |
166 | }; | |
167 | match br.read_buf_some(&mut buf) { | |
168 | Ok(size) => { | |
169 | pkt.add_data(&buf[..size]); | |
170 | }, | |
171 | Err(_) => { | |
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), | |
176 | }; | |
177 | }, | |
178 | }; | |
179 | } | |
180 | }, | |
181 | _ => unreachable!(), | |
182 | } | |
183 | } | |
184 | pub fn seek(&mut self, seek_time: NATimePoint) -> DemuxerResult<()> { | |
185 | match *self { | |
186 | DemuxerObject::Normal(ref mut dmx) => dmx.seek(seek_time), | |
187 | DemuxerObject::Raw(ref mut dmx, _, _) => dmx.seek(seek_time), | |
188 | _ => Err(DemuxerError::NotImplemented), | |
189 | } | |
190 | } | |
191 | } | |
192 | ||
193 | pub fn detect_tags(br: &mut ByteReader) -> (bool, u64, Option<u64>) { | |
194 | let mut is_raw = false; | |
195 | let mut start = 0; | |
196 | let mut end = None; | |
197 | ||
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(); | |
203 | let mut size = 0; | |
204 | for _ in 0..4 { | |
205 | let b = br.read_byte().unwrap(); | |
206 | if (b & 0x80) != 0 { | |
207 | println!("Invalid ID3 size"); | |
208 | break; | |
209 | } | |
210 | size = (size << 7) | u64::from(b); | |
211 | } | |
212 | start = size + 10; | |
213 | is_raw = true; | |
214 | } | |
215 | // check for ID3v1 | |
216 | br.seek(SeekFrom::End(-128)).unwrap(); | |
217 | let off = br.tell(); | |
218 | br.peek_buf(&mut buf[..3]).unwrap(); | |
219 | if &buf[0..3] == b"TAG" { | |
220 | end = Some(off); | |
221 | } | |
222 | // check for APETAG | |
223 | let mut buf = [0; 8]; | |
224 | if let Some(off) = end { | |
225 | br.seek(SeekFrom::Start(off - 32)).unwrap(); | |
226 | } else { | |
227 | br.seek(SeekFrom::End(-32)).unwrap(); | |
228 | } | |
229 | let off = br.tell(); | |
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); | |
238 | } else { | |
239 | end = Some(off - size); | |
240 | } | |
241 | } | |
242 | ||
243 | (is_raw, start, end) | |
244 | } |