nihav-rad/src/demuxers/bink.rs

   1 use nihav_core::demuxers::*;
   2 use nihav_core::io::byteio::ByteReader;
   3
   4 struct AudioTrack {
   5     id:             usize,
   6 }
   7
   8 const BINK_AUD_FLAG_DCT:    u8 = 0x10;
   9 const BINK_AUD_FLAG_STEREO: u8 = 0x20;
  10
  11 impl AudioTrack {
  12     fn new(strmgr: &mut StreamManager, srate: u32, flags: u8, str_id: usize, magic: &[u8; 4]) -> DemuxerResult<Self> {
  13         let channels = if (flags & BINK_AUD_FLAG_STEREO) != 0 { 2 } else { 1 };
  14         let codecname = if (flags & BINK_AUD_FLAG_DCT) != 0 {
  15                 "bink-audio-dct"
  16             } else {
  17                 "bink-audio-rdft"
  18             };
  19         let ahdr = NAAudioInfo::new(srate, channels, SND_F32P_FORMAT, 1);
  20         let mut edata: Vec<u8> = Vec::with_capacity(4);
  21         edata.extend_from_slice(magic);
  22         let ainfo = NACodecInfo::new(codecname, NACodecTypeInfo::Audio(ahdr), Some(edata));
  23         let res = strmgr.add_stream(NAStream::new(StreamType::Audio, (str_id + 1) as u32, ainfo, 1, srate));
  24         validate!(res.is_some());
  25         let id = res.unwrap();
  26         Ok(Self{ id })
  27     }
  28 }
  29
  30 struct BinkDemuxer<'a> {
  31     src:            &'a mut ByteReader<'a>,
  32     cur_frame:      usize,
  33     frames:         usize,
  34     video_id:       usize,
  35     tb_num:         u32,
  36     tb_den:         u32,
  37     ainfo:          Vec<AudioTrack>,
  38     queued_packets: Vec<NAPacket>,
  39     frame_pos:      Vec<u32>,
  40 }
  41
  42 macro_rules! mktag {
  43     ($a:expr, $b:expr, $c:expr, $d:expr) => ({
  44         (($a as u32) << 24) | (($b as u32) << 16) | (($c as u32) << 8) | ($d as u32)
  45     });
  46     ($arr:expr) => ({
  47         (($arr[0] as u32) << 24) | (($arr[1] as u32) << 16) | (($arr[2] as u32) << 8) | ($arr[3] as u32)
  48     });
  49 }
  50
  51 impl<'a> DemuxCore<'a> for BinkDemuxer<'a> {
  52     fn open(&mut self, strmgr: &mut StreamManager, seek_idx: &mut SeekIndex) -> DemuxerResult<()> {
  53         let src = &mut self.src;
  54         let mut magic: [u8; 4] = [0; 4];
  55                                               src.read_buf(&mut magic)?;
  56         let magic_tag = mktag!(magic);
  57         validate!((magic_tag >= mktag!(b"BIKb") && magic_tag <= mktag!(b"BIKk")) ||
  58                   (magic_tag >= mktag!(b"KB2a") && magic_tag <= mktag!(b"KB2k")));
  59         let fsize                           = (src.read_u32le()? as usize) + 8;
  60         self.frames                         = src.read_u32le()? as usize;
  61         let max_size                        = src.read_u32le()? as usize;
  62         let _frames2                        = src.read_u32le()? as usize;
  63         let width                           = src.read_u32le()? as usize;
  64         let height                          = src.read_u32le()? as usize;
  65         let tb_den                          = src.read_u32le()?;
  66         let tb_num                          = src.read_u32le()?;
  67         validate!((width > 0) && (height > 0) && (width <= 7680) && (height <= 4800));
  68         validate!((self.frames > 0) && (tb_num > 0) && (tb_den > 0) && (max_size < fsize));
  69         let mut flags: [u8; 4] = [0; 4];
  70                                               src.read_buf(&mut flags)?;
  71         let mut edata: Vec<u8> = vec![0; 8];
  72         let p0 = &mut edata[0..4];
  73         p0.copy_from_slice(&magic);
  74         let p1 = &mut edata[4..][..4];
  75         p1.copy_from_slice(&flags);
  76         let vhdr = NAVideoInfo::new(width, height, false, YUV420_FORMAT);
  77         let codec = if magic[0] == b'K' && magic[1] == b'B' && magic[2] == b'2' { "bink2-video" } else { "bink-video" };
  78         let vinfo = NACodecInfo::new(codec, NACodecTypeInfo::Video(vhdr), Some(edata));
  79         let res = strmgr.add_stream(NAStream::new(StreamType::Video, 0, vinfo, self.tb_num, self.tb_den));
  80         validate!(res.is_some());
  81         self.video_id = res.unwrap();
  82
  83         let num_audio                       = src.read_u32le()? as usize;
  84         if magic_tag >= mktag!(b"KB2i") {
  85                                               src.read_skip(4)?;
  86         }
  87         validate!(num_audio < 256);
  88                                               src.read_skip(num_audio * 4)?; // audio max output frame size?
  89         self.ainfo = Vec::with_capacity(num_audio);
  90         for i in 0..num_audio {
  91             let srate                       = src.read_u24le()?;
  92             let flags                       = src.read_byte()?;
  93             validate!(srate > 0);
  94             self.ainfo.push(AudioTrack::new(strmgr, srate, flags, i, &magic)?);
  95         }
  96         for _ in 0..num_audio {
  97             let _trk_id                     = src.read_u32le()?;
  98         }
  99
 100         seek_idx.mode = SeekIndexMode::Present;
 101         seek_idx.add_stream(0);
 102         self.frame_pos = Vec::with_capacity(self.frames + 1);
 103         for fno in 0..=self.frames {
 104             let pos                         = src.read_u32le()?;
 105             self.frame_pos.push(pos);
 106             if (pos & 1) != 0 {
 107                 let time = (fno as u64) * 1000 * (tb_num as u64) / (tb_den as u64);
 108                 seek_idx.seek_info[0].add_entry(SeekEntry { time, pts: fno as u64, pos: (pos & !1) as u64 });
 109             }
 110         }
 111         validate!((src.tell() as u32) == (self.frame_pos[0] & !1));
 112         seek_idx.seek_info[0].filled = true;
 113
 114         self.cur_frame = 0;
 115
 116         Ok(())
 117     }
 118     fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> {
 119         if !self.queued_packets.is_empty() {
 120             let pkt = self.queued_packets.pop().unwrap();
 121             return Ok(pkt);
 122         }
 123         if self.cur_frame >= self.frames { return Err(DemuxerError::EOF); }
 124         let mut payload_size = ((self.frame_pos[self.cur_frame + 1] & !1) - (self.frame_pos[self.cur_frame] & !1)) as usize;
 125         validate!(payload_size > self.ainfo.len() * 4);
 126         for atrk in self.ainfo.iter() {
 127             let size                            = self.src.read_u32le()? as usize;
 128             validate!(payload_size > size + 4);
 129             payload_size -= size + 4;
 130
 131             if size > 0 {
 132                 let strres = strmgr.get_stream(atrk.id);
 133                 validate!(strres.is_some());
 134                 let stream = strres.unwrap();
 135                 let ts = NATimeInfo::new(Some(self.cur_frame as u64), None, None, self.tb_num, self.tb_den);
 136                 let pkt = self.src.read_packet(stream.clone(), ts, true, size)?;
 137                 self.queued_packets.push(pkt);
 138             }
 139         }
 140         self.queued_packets.reverse();
 141
 142         let strres = strmgr.get_stream(self.video_id);
 143         validate!(strres.is_some());
 144         let stream = strres.unwrap();
 145         let keyframe = (self.frame_pos[self.cur_frame] & 1) != 0;
 146         let ts = NATimeInfo::new(Some(self.cur_frame as u64), None, None, self.tb_num, self.tb_den);
 147         let pkt = self.src.read_packet(stream.clone(), ts, keyframe, payload_size)?;
 148
 149         self.cur_frame += 1;
 150
 151         Ok(pkt)
 152     }
 153     fn seek(&mut self, time: u64, seek_idx: &SeekIndex) -> DemuxerResult<()> {
 154         let ret = seek_idx.find_pos(time);
 155         if ret.is_none() {
 156             return Err(DemuxerError::SeekError);
 157         }
 158         let seek_info = ret.unwrap();
 159         self.src.seek(SeekFrom::Start(seek_info.pos))?;
 160         self.queued_packets.clear();
 161         self.cur_frame = seek_info.pts as usize;
 162         Ok(())
 163     }
 164 }
 165
 166 impl<'a> BinkDemuxer<'a> {
 167     fn new(io: &'a mut ByteReader<'a>) -> Self {
 168         Self {
 169             src:            io,
 170             cur_frame:      0,
 171             frames:         0,
 172             video_id:       0,
 173             tb_num:         0,
 174             tb_den:         0,
 175             ainfo:          Vec::new(),
 176             queued_packets: Vec::new(),
 177             frame_pos:      Vec::new(),
 178         }
 179     }
 180 }
 181
 182
 183 pub struct BinkDemuxerCreator { }
 184
 185 impl DemuxerCreator for BinkDemuxerCreator {
 186     fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> {
 187         Box::new(BinkDemuxer::new(br))
 188     }
 189     fn get_name(&self) -> &'static str { "bink" }
 190 }
 191
 192 #[cfg(test)]
 193 mod test {
 194     use super::*;
 195     use std::fs::File;
 196
 197     #[test]
 198     fn test_bink_demux() {
 199         let mut file = File::open("assets/RAD/ActivisionLogo.bik").unwrap();
 200 //        let mut file = File::open("assets/RAD/original.bik").unwrap();
 201 //        let mut file = File::open("assets/RAD/Snd0a110c51.dee").unwrap();
 202 //        let mut file = File::open("assets/RAD/NEW.BIK").unwrap();
 203 //        let mut file = File::open("assets/RAD/ge_video_86l.bk2").unwrap();
 204         let mut fr = FileReader::new_read(&mut file);
 205         let mut br = ByteReader::new(&mut fr);
 206         let mut dmx = BinkDemuxer::new(&mut br);
 207         let mut sm = StreamManager::new();
 208         dmx.open(&mut sm).unwrap();
 209         loop {
 210             let pktres = dmx.get_frame(&mut sm);
 211             if let Err(e) = pktres {
 212                 if (e as i32) == (DemuxerError::EOF as i32) { break; }
 213                 panic!("error");
 214             }
 215             let pkt = pktres.unwrap();
 216             println!("Got {}", pkt);
 217         }
 218     }
 219 }