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1 | use nihav_core::frame::*; | |
2 | use nihav_core::demuxers::*; | |
3 | ||
4 | #[allow(dead_code)] | |
5 | struct QDemuxer<'a> { | |
6 | src: &'a mut ByteReader<'a>, | |
7 | vpts: u64, | |
8 | apts: u64, | |
9 | bps: usize, | |
10 | a_id: Option<usize>, | |
11 | v_id: Option<usize>, | |
12 | nframes: usize, | |
13 | duration: u64, | |
14 | side_data: Vec<u8>, | |
15 | } | |
16 | ||
17 | impl<'a> DemuxCore<'a> for QDemuxer<'a> { | |
18 | #[allow(unused_variables)] | |
19 | fn open(&mut self, strmgr: &mut StreamManager, _seek_index: &mut SeekIndex) -> DemuxerResult<()> { | |
20 | let src = &mut self.src; | |
21 | ||
22 | let mut hdr = [0; 22]; | |
23 | src.read_buf(&mut hdr)?; | |
24 | validate!(hdr[0] == 0x39); | |
25 | validate!(hdr[1] == 0x68); | |
26 | let version = hdr[2]; | |
27 | validate!(version >= 3 && version <= 5); | |
28 | let mut width = read_u16le(&hdr[4..])? as usize; | |
29 | let mut height = read_u16le(&hdr[6..])? as usize; | |
30 | if version > 3 { | |
31 | width *= hdr[8] as usize; | |
32 | height *= hdr[9] as usize; | |
33 | } | |
34 | validate!(width > 0 && width <= 800); | |
35 | validate!(height > 0 && height <= 600); | |
36 | ||
37 | self.nframes = read_u16le(&hdr[10..])? as usize; | |
38 | validate!(self.nframes > 0); | |
39 | let fps = if hdr[16] == 0 { 5 } else { hdr[16] as u32 }; | |
40 | self.duration = (self.nframes as u64) * 1000 / u64::from(fps); | |
41 | let asize = if version > 3 { | |
42 | src.read_u32le()? | |
43 | } else { 0 }; | |
44 | ||
45 | let vhdr = NAVideoInfo::new(width, height, false, PAL8_FORMAT); | |
46 | let vci = NACodecTypeInfo::Video(vhdr); | |
47 | let vinfo = NACodecInfo::new("legend-q-video", vci, Some(hdr.to_vec())); | |
48 | self.v_id = strmgr.add_stream(NAStream::new(StreamType::Video, 0, vinfo, 1, fps, self.nframes as u64)); | |
49 | if asize != 0 { | |
50 | let ntype = self.src.peek_byte()?; | |
51 | if ntype == 8 { | |
52 | let _ = self.src.read_u16le()?; | |
53 | let size = self.src.read_u32le()? as usize; | |
54 | validate!(size >= 44); | |
55 | let mut buf = vec![0; size]; | |
56 | self.src.read_buf(&mut buf)?; | |
57 | let arate = read_u32le(&buf[24..])?; | |
58 | let channels = buf[22]; | |
59 | let abits = buf[34] as usize; | |
60 | validate!(abits == 8 || abits == 16); | |
61 | self.bps = (channels as usize) * abits / 8; | |
62 | let bsize = read_u16le(&buf[32..])? as usize; | |
63 | let ahdr = NAAudioInfo::new(arate, channels as u8, if abits == 16 { SND_S16_FORMAT } else { SND_U8_FORMAT }, bsize); | |
64 | let ainfo = NACodecInfo::new("pcm", NACodecTypeInfo::Audio(ahdr), None); | |
65 | self.a_id = strmgr.add_stream(NAStream::new(StreamType::Audio, 1, ainfo, 1, arate, 2)); | |
66 | } | |
67 | } | |
68 | self.apts = 0; | |
69 | self.vpts = 0; | |
70 | self.side_data.clear(); | |
71 | Ok(()) | |
72 | } | |
73 | ||
74 | fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> { | |
75 | loop { | |
76 | let ctype = self.src.read_u16le()?; | |
77 | let size = self.src.read_u32le()? as usize; | |
78 | match ctype { | |
79 | 0xFFFF => return Err(DemuxerError::EOF), | |
80 | 0 => { | |
81 | if let Some(a_id) = self.a_id { | |
82 | let str = strmgr.get_stream(a_id).unwrap(); | |
83 | let (tb_num, tb_den) = str.get_timebase(); | |
84 | let ts = NATimeInfo::new(Some(self.apts), None, None, tb_num, tb_den); | |
85 | self.apts += (size / self.bps) as u64; | |
86 | return self.src.read_packet(str, ts, true, size); | |
87 | } else { | |
88 | return Err(DemuxerError::InvalidData); | |
89 | } | |
90 | }, | |
91 | 1 => { | |
92 | validate!(size <= 768); | |
93 | let cur_len = self.side_data.len(); | |
94 | self.side_data.resize(cur_len + size + 6, 0); | |
95 | self.side_data[cur_len] = ctype as u8; | |
96 | write_u32le(&mut self.side_data[cur_len + 2..], size as u32)?; | |
97 | self.src.read_buf(&mut self.side_data[cur_len + 6..])?; | |
98 | }, | |
99 | 2 | 3 | 4 | 11 => { | |
100 | validate!(self.v_id.is_some()); | |
101 | let str = strmgr.get_stream(self.v_id.unwrap_or(0)).unwrap(); | |
102 | let (tb_num, tb_den) = str.get_timebase(); | |
103 | let ts = NATimeInfo::new(Some(self.vpts), None, None, tb_num, tb_den); | |
104 | self.vpts += 1; | |
105 | ||
106 | let cur_len = self.side_data.len(); | |
107 | self.side_data.resize(cur_len + size + 6, 0); | |
108 | self.side_data[cur_len] = ctype as u8; | |
109 | self.side_data[cur_len] = ctype as u8; | |
110 | write_u32le(&mut self.side_data[cur_len + 2..], size as u32)?; | |
111 | if let Err(err) = self.src.read_buf(&mut self.side_data[cur_len + 6..]) { | |
112 | self.side_data.truncate(cur_len); | |
113 | return Err(err.into()); | |
114 | } | |
115 | let mut buf = Vec::new(); | |
116 | std::mem::swap(&mut buf, &mut self.side_data); | |
117 | return Ok(NAPacket::new(str, ts, self.vpts == 1, buf)); | |
118 | }, | |
119 | 5 => { | |
120 | validate!(size <= 256); | |
121 | let cur_len = self.side_data.len(); | |
122 | self.side_data.resize(cur_len + size + 6, 0); | |
123 | self.side_data[cur_len] = ctype as u8; | |
124 | write_u32le(&mut self.side_data[cur_len + 2..], size as u32)?; | |
125 | self.src.read_buf(&mut self.side_data[cur_len + 6..])?; | |
126 | }, | |
127 | 6 | 7 => { | |
128 | self.side_data.push(ctype as u8); | |
129 | self.side_data.push(0); | |
130 | self.side_data.push(0); | |
131 | self.side_data.push(0); | |
132 | self.side_data.push(0); | |
133 | self.side_data.push(0); | |
134 | }, | |
135 | 8 => return Err(DemuxerError::InvalidData), //should be handled before main loop | |
136 | 9 => { // first part of interlaced frame | |
137 | let cur_len = self.side_data.len(); | |
138 | self.side_data.resize(cur_len + size + 6, 0); | |
139 | self.side_data[cur_len] = ctype as u8; | |
140 | write_u32le(&mut self.side_data[cur_len + 2..], size as u32)?; | |
141 | self.src.read_buf(&mut self.side_data[cur_len + 6..])?; | |
142 | }, | |
143 | _ => { | |
144 | self.src.read_skip(size)?; | |
145 | }, | |
146 | }; | |
147 | } | |
148 | } | |
149 | ||
150 | fn seek(&mut self, _time: NATimePoint, _seek_index: &SeekIndex) -> DemuxerResult<()> { | |
151 | Err(DemuxerError::NotPossible) | |
152 | } | |
153 | fn get_duration(&self) -> u64 { self.duration } | |
154 | } | |
155 | impl<'a> NAOptionHandler for QDemuxer<'a> { | |
156 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } | |
157 | fn set_options(&mut self, _options: &[NAOption]) { } | |
158 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } | |
159 | } | |
160 | impl<'a> QDemuxer<'a> { | |
161 | fn new(io: &'a mut ByteReader<'a>) -> Self { | |
162 | QDemuxer { | |
163 | src: io, | |
164 | vpts: 0, | |
165 | apts: 0, | |
166 | bps: 0, | |
167 | a_id: None, | |
168 | v_id: None, | |
169 | nframes: 0, | |
170 | duration: 0, | |
171 | side_data: Vec::with_capacity(256 + 6), | |
172 | } | |
173 | } | |
174 | } | |
175 | ||
176 | pub struct QDemuxerCreator { } | |
177 | ||
178 | impl DemuxerCreator for QDemuxerCreator { | |
179 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> { | |
180 | Box::new(QDemuxer::new(br)) | |
181 | } | |
182 | fn get_name(&self) -> &'static str { "legend-q" } | |
183 | } | |
184 | ||
185 | #[cfg(test)] | |
186 | mod test { | |
187 | use super::*; | |
188 | use std::fs::File; | |
189 | ||
190 | #[test] | |
191 | fn test_q_demux_v3() { | |
192 | let mut file = File::open("assets/Game/dgate101.q").unwrap(); | |
193 | let mut fr = FileReader::new_read(&mut file); | |
194 | let mut br = ByteReader::new(&mut fr); | |
195 | let mut dmx = QDemuxer::new(&mut br); | |
196 | let mut sm = StreamManager::new(); | |
197 | let mut si = SeekIndex::new(); | |
198 | dmx.open(&mut sm, &mut si).unwrap(); | |
199 | loop { | |
200 | let pktres = dmx.get_frame(&mut sm); | |
201 | if let Err(e) = pktres { | |
202 | if (e as i32) == (DemuxerError::EOF as i32) { break; } | |
203 | panic!("error"); | |
204 | } | |
205 | let pkt = pktres.unwrap(); | |
206 | println!("Got {}", pkt); | |
207 | } | |
208 | } | |
209 | ||
210 | #[test] | |
211 | fn test_q_demux_v4() { | |
212 | let mut file = File::open("assets/Game/1425A5.Q").unwrap(); | |
213 | let mut fr = FileReader::new_read(&mut file); | |
214 | let mut br = ByteReader::new(&mut fr); | |
215 | let mut dmx = QDemuxer::new(&mut br); | |
216 | let mut sm = StreamManager::new(); | |
217 | let mut si = SeekIndex::new(); | |
218 | dmx.open(&mut sm, &mut si).unwrap(); | |
219 | loop { | |
220 | let pktres = dmx.get_frame(&mut sm); | |
221 | if let Err(e) = pktres { | |
222 | if (e as i32) == (DemuxerError::EOF as i32) { break; } | |
223 | panic!("error"); | |
224 | } | |
225 | let pkt = pktres.unwrap(); | |
226 | println!("Got {}", pkt); | |
227 | } | |
228 | } | |
229 | ||
230 | #[test] | |
231 | fn test_q_demux_v5() { | |
232 | let mut file = File::open("assets/Game/mc703.q").unwrap(); | |
233 | let mut fr = FileReader::new_read(&mut file); | |
234 | let mut br = ByteReader::new(&mut fr); | |
235 | let mut dmx = QDemuxer::new(&mut br); | |
236 | let mut sm = StreamManager::new(); | |
237 | let mut si = SeekIndex::new(); | |
238 | dmx.open(&mut sm, &mut si).unwrap(); | |
239 | loop { | |
240 | let pktres = dmx.get_frame(&mut sm); | |
241 | if let Err(e) = pktres { | |
242 | if (e as i32) == (DemuxerError::EOF as i32) { break; } | |
243 | panic!("error"); | |
244 | } | |
245 | let pkt = pktres.unwrap(); | |
246 | println!("Got {}", pkt); | |
247 | } | |
248 | } | |
249 | } |