nihav-game/src/demuxers/cnm.rs

   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 }