| 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 | } |