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1 | use nihav_core::frame::*; | |
2 | use nihav_core::demuxers::*; | |
3 | ||
4 | struct ArxelCinemaDemuxer<'a> { | |
5 | src: &'a mut ByteReader<'a>, | |
6 | cur_frame: usize, | |
7 | astreams: usize, | |
8 | offsets: Vec<u32>, | |
9 | vpts: u64, | |
10 | tb_num: u32, | |
11 | tb_den: u32, | |
12 | } | |
13 | ||
14 | impl<'a> DemuxCore<'a> for ArxelCinemaDemuxer<'a> { | |
15 | #[allow(unused_variables)] | |
16 | fn open(&mut self, strmgr: &mut StreamManager, _seek_index: &mut SeekIndex) -> DemuxerResult<()> { | |
17 | let src = &mut self.src; | |
18 | ||
19 | let magic = src.read_tag()?; | |
20 | validate!(&magic == b"CNM "); | |
21 | let magic = src.read_tag()?; | |
22 | validate!(&magic == b"UNR\x00"); | |
23 | let _duration = src.read_u32le()?; | |
24 | let tb_den = src.read_u32le()?; | |
25 | src.read_byte()?; | |
26 | let width = src.read_u32le()? as usize; | |
27 | let height = src.read_u32le()? as usize; | |
28 | validate!(width != 0 && height != 0); | |
29 | src.read_u16le()?; | |
30 | self.astreams = src.read_byte()? as usize; | |
31 | validate!(self.astreams < 4); | |
32 | if self.astreams > 1 { | |
33 | return Err(DemuxerError::NotImplemented); | |
34 | } | |
35 | let nframes = src.read_u32le()? as usize; | |
36 | src.read_u32le()?; //nframes again? | |
37 | let tab_size = src.read_u32le()? as usize; | |
38 | validate!(tab_size == nframes * 8); | |
39 | src.read_skip(0x98)?; | |
40 | ||
41 | let vhdr = NAVideoInfo::new(width, height, true, RGB24_FORMAT); | |
42 | let vci = NACodecTypeInfo::Video(vhdr); | |
43 | let vinfo = NACodecInfo::new("arxel-video", vci, None); | |
44 | if strmgr.add_stream(NAStream::new(StreamType::Video, 0, vinfo, 100, tb_den, nframes as u64)).is_none() { | |
45 | return Err(DemuxerError::MemoryError); | |
46 | } | |
47 | if let Some(stream) = strmgr.get_stream_by_id(0) { | |
48 | let (tb_num, tb_den) = stream.get_timebase(); | |
49 | self.tb_num = tb_num; | |
50 | self.tb_den = tb_den; | |
51 | } | |
52 | ||
53 | for trk in 0..(self.astreams as u32) { | |
54 | let channels = src.read_byte()? + 1; | |
55 | let abits = src.read_byte()?; | |
56 | let arate = src.read_u32le()?; | |
57 | src.read_skip(10)?; | |
58 | validate!(channels > 0); | |
59 | validate!(abits >= 8); | |
60 | validate!(arate > 0); | |
61 | ||
62 | let ahdr = NAAudioInfo::new(arate, channels, if abits > 8 { SND_S16_FORMAT } else { SND_U8_FORMAT }, 2); | |
63 | let ainfo = NACodecInfo::new("pcm", NACodecTypeInfo::Audio(ahdr), None); | |
64 | if strmgr.add_stream(NAStream::new(StreamType::Audio, 1 + trk, ainfo, 1, arate, 0)).is_none() { | |
65 | return Err(DemuxerError::MemoryError); | |
66 | } | |
67 | } | |
68 | ||
69 | let tab_size = tab_size / 4; | |
70 | self.offsets = Vec::with_capacity(tab_size); | |
71 | for _ in 0..tab_size { | |
72 | let offset = src.read_u32le()?; | |
73 | self.offsets.push(offset); | |
74 | } | |
75 | self.cur_frame = 0; | |
76 | self.vpts = 0; | |
77 | Ok(()) | |
78 | } | |
79 | ||
80 | #[allow(unused_variables)] | |
81 | fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> { | |
82 | loop { | |
83 | if self.cur_frame >= self.offsets.len() { return Err(DemuxerError::EOF); } | |
84 | let pos = u64::from(self.offsets[self.cur_frame]); | |
85 | let stream_id = (self.cur_frame % (self.astreams.max(1) + 1)) as u32; | |
86 | self.cur_frame += 1; | |
87 | if pos == 0 { | |
88 | continue; | |
89 | } | |
90 | ||
91 | self.src.seek(SeekFrom::Start(pos))?; | |
92 | let ftype = self.src.read_byte()?; | |
93 | match ftype { | |
94 | 0x41 | 0x42 | 0x5A => { | |
95 | let size = self.src.read_u32le()? as usize; | |
96 | if size == 0 { | |
97 | continue; | |
98 | } | |
99 | if let Some(stream) = strmgr.get_stream_by_id(stream_id) { | |
100 | let ts = stream.make_ts(None, None, None); | |
101 | return self.src.read_packet(stream, ts, true, size); | |
102 | } else { | |
103 | self.src.read_skip(size)?; | |
104 | } | |
105 | }, | |
106 | 0x53 => { | |
107 | let size = self.src.peek_u32le()? as usize; | |
108 | if let Some(stream) = strmgr.get_stream_by_id(0) { | |
109 | let ts = stream.make_ts(Some(self.vpts), None, None); | |
110 | self.vpts += 1; | |
111 | return self.src.read_packet(stream, ts, true, size + 0x2F); | |
112 | } else { | |
113 | return Err(DemuxerError::MemoryError); | |
114 | } | |
115 | }, | |
116 | _ => continue, | |
117 | }; | |
118 | } | |
119 | } | |
120 | ||
121 | fn seek(&mut self, time: NATimePoint, _seek_index: &SeekIndex) -> DemuxerResult<()> { | |
122 | match time { | |
123 | NATimePoint::PTS(pts) => self.seek_to_frame(pts), | |
124 | NATimePoint::Milliseconds(ms) => { | |
125 | if self.tb_num == 0 || self.tb_den == 0 { | |
126 | return Err(DemuxerError::NotPossible); | |
127 | } | |
128 | let pts = NATimeInfo::time_to_ts(ms, 1000, self.tb_num, self.tb_den); | |
129 | self.seek_to_frame(pts) | |
130 | }, | |
131 | _ => Err(DemuxerError::NotPossible) | |
132 | } | |
133 | } | |
134 | fn get_duration(&self) -> u64 { 0 } | |
135 | } | |
136 | impl<'a> NAOptionHandler for ArxelCinemaDemuxer<'a> { | |
137 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } | |
138 | fn set_options(&mut self, _options: &[NAOption]) { } | |
139 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } | |
140 | } | |
141 | impl<'a> ArxelCinemaDemuxer<'a> { | |
142 | fn new(io: &'a mut ByteReader<'a>) -> Self { | |
143 | ArxelCinemaDemuxer { | |
144 | src: io, | |
145 | cur_frame: 0, | |
146 | astreams: 0, | |
147 | offsets: Vec::new(), | |
148 | vpts: 0, | |
149 | tb_num: 0, | |
150 | tb_den: 0, | |
151 | } | |
152 | } | |
153 | fn seek_to_frame(&mut self, pts: u64) -> DemuxerResult<()> { | |
154 | let nframe = (pts as usize) * (1 + self.astreams.max(1)); | |
155 | if nframe < self.offsets.len() { | |
156 | self.cur_frame = nframe; | |
157 | Ok(()) | |
158 | } else { | |
159 | Err(DemuxerError::SeekError) | |
160 | } | |
161 | } | |
162 | } | |
163 | ||
164 | pub struct CNMDemuxerCreator { } | |
165 | ||
166 | impl DemuxerCreator for CNMDemuxerCreator { | |
167 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> { | |
168 | Box::new(ArxelCinemaDemuxer::new(br)) | |
169 | } | |
170 | fn get_name(&self) -> &'static str { "arxel-cnm" } | |
171 | } | |
172 | ||
173 | #[cfg(test)] | |
174 | mod test { | |
175 | use super::*; | |
176 | use std::fs::File; | |
177 | ||
178 | // samples from the Ring game | |
179 | #[test] | |
180 | fn test_cnm_demux() { | |
181 | let mut file = File::open("assets/Game/logo.cnm").unwrap(); | |
182 | let mut fr = FileReader::new_read(&mut file); | |
183 | let mut br = ByteReader::new(&mut fr); | |
184 | let mut dmx = ArxelCinemaDemuxer::new(&mut br); | |
185 | let mut sm = StreamManager::new(); | |
186 | let mut si = SeekIndex::new(); | |
187 | dmx.open(&mut sm, &mut si).unwrap(); | |
188 | loop { | |
189 | let pktres = dmx.get_frame(&mut sm); | |
190 | if let Err(e) = pktres { | |
191 | if (e as i32) == (DemuxerError::EOF as i32) { break; } | |
192 | panic!("error"); | |
193 | } | |
194 | let pkt = pktres.unwrap(); | |
195 | println!("Got {}", pkt); | |
196 | } | |
197 | } | |
198 | #[test] | |
199 | fn test_cnm_noaud_demux() { | |
200 | let mut file = File::open("assets/Game/tr_as_ro_d.cnm").unwrap(); | |
201 | let mut fr = FileReader::new_read(&mut file); | |
202 | let mut br = ByteReader::new(&mut fr); | |
203 | let mut dmx = ArxelCinemaDemuxer::new(&mut br); | |
204 | let mut sm = StreamManager::new(); | |
205 | let mut si = SeekIndex::new(); | |
206 | dmx.open(&mut sm, &mut si).unwrap(); | |
207 | loop { | |
208 | let pktres = dmx.get_frame(&mut sm); | |
209 | if let Err(e) = pktres { | |
210 | if (e as i32) == (DemuxerError::EOF as i32) { break; } | |
211 | panic!("error"); | |
212 | } | |
213 | let pkt = pktres.unwrap(); | |
214 | println!("Got {}", pkt); | |
215 | } | |
216 | } | |
217 | } |