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         self.tb_num = tb_num;
  70         self.tb_den = tb_den;
  71         let mut flags: [u8; 4] = [0; 4];
  72                                               src.read_buf(&mut flags)?;
  73         let mut edata: Vec<u8> = vec![0; 8];
  74         let p0 = &mut edata[0..4];
  75         p0.copy_from_slice(&magic);
  76         let p1 = &mut edata[4..][..4];
  77         p1.copy_from_slice(&flags);
  78         let vhdr = NAVideoInfo::new(width, height, false, YUV420_FORMAT);
  79         let codec = if magic[0] == b'K' && magic[1] == b'B' && magic[2] == b'2' { "bink2-video" } else { "bink-video" };
  80         let vinfo = NACodecInfo::new(codec, NACodecTypeInfo::Video(vhdr), Some(edata));
  81         let res = strmgr.add_stream(NAStream::new(StreamType::Video, 0, vinfo, self.tb_num, self.tb_den));
  82         validate!(res.is_some());
  83         self.video_id = res.unwrap();
  84
  85         let num_audio                       = src.read_u32le()? as usize;
  86         if magic_tag >= mktag!(b"KB2i") {
  87                                               src.read_skip(4)?;
  88         }
  89         validate!(num_audio < 256);
  90                                               src.read_skip(num_audio * 4)?; // audio max output frame size?
  91         self.ainfo = Vec::with_capacity(num_audio);
  92         for i in 0..num_audio {
  93             let srate                       = src.read_u24le()?;
  94             let flags                       = src.read_byte()?;
  95             validate!(srate > 0);
  96             self.ainfo.push(AudioTrack::new(strmgr, srate, flags, i, &magic)?);
  97         }
  98         for _ in 0..num_audio {
  99             let _trk_id                     = src.read_u32le()?;
 100         }
 101
 102         seek_idx.mode = SeekIndexMode::Present;
 103         seek_idx.add_stream(0);
 104         self.frame_pos = Vec::with_capacity(self.frames + 1);
 105         for fno in 0..=self.frames {
 106             let pos                         = src.read_u32le()?;
 107             self.frame_pos.push(pos);
 108             if (pos & 1) != 0 {
 109                 let time = (fno as u64) * 1000 * (tb_num as u64) / (tb_den as u64);
 110                 seek_idx.seek_info[0].add_entry(SeekEntry { time, pts: fno as u64, pos: (pos & !1) as u64 });
 111             }
 112         }
 113         validate!((src.tell() as u32) == (self.frame_pos[0] & !1));
 114         seek_idx.seek_info[0].filled = true;
 115
 116         self.cur_frame = 0;
 117
 118         Ok(())
 119     }
 120     fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> {
 121         if !self.queued_packets.is_empty() {
 122             let pkt = self.queued_packets.pop().unwrap();
 123             return Ok(pkt);
 124         }
 125         if self.cur_frame >= self.frames { return Err(DemuxerError::EOF); }
 126         let mut payload_size = ((self.frame_pos[self.cur_frame + 1] & !1) - (self.frame_pos[self.cur_frame] & !1)) as usize;
 127         validate!(payload_size > self.ainfo.len() * 4);
 128         for atrk in self.ainfo.iter() {
 129             let size                            = self.src.read_u32le()? as usize;
 130             validate!(payload_size > size + 4);
 131             payload_size -= size + 4;
 132
 133             if size > 0 {
 134                 let strres = strmgr.get_stream(atrk.id);
 135                 validate!(strres.is_some());
 136                 let stream = strres.unwrap();
 137                 let ts = NATimeInfo::new(Some(self.cur_frame as u64), None, None, self.tb_num, self.tb_den);
 138                 let pkt = self.src.read_packet(stream.clone(), ts, true, size)?;
 139                 self.queued_packets.push(pkt);
 140             }
 141         }
 142         self.queued_packets.reverse();
 143
 144         let strres = strmgr.get_stream(self.video_id);
 145         validate!(strres.is_some());
 146         let stream = strres.unwrap();
 147         let keyframe = (self.frame_pos[self.cur_frame] & 1) != 0;
 148         let ts = NATimeInfo::new(Some(self.cur_frame as u64), None, None, self.tb_num, self.tb_den);
 149         let pkt = self.src.read_packet(stream.clone(), ts, keyframe, payload_size)?;
 150
 151         self.cur_frame += 1;
 152
 153         Ok(pkt)
 154     }
 155     fn seek(&mut self, time: u64, seek_idx: &SeekIndex) -> DemuxerResult<()> {
 156         let ret = seek_idx.find_pos(time);
 157         if ret.is_none() {
 158             return Err(DemuxerError::SeekError);
 159         }
 160         let seek_info = ret.unwrap();
 161         self.src.seek(SeekFrom::Start(seek_info.pos))?;
 162         self.queued_packets.clear();
 163         self.cur_frame = seek_info.pts as usize;
 164         Ok(())
 165     }
 166 }
 167
 168 impl<'a> BinkDemuxer<'a> {
 169     fn new(io: &'a mut ByteReader<'a>) -> Self {
 170         Self {
 171             src:            io,
 172             cur_frame:      0,
 173             frames:         0,
 174             video_id:       0,
 175             tb_num:         0,
 176             tb_den:         0,
 177             ainfo:          Vec::new(),
 178             queued_packets: Vec::new(),
 179             frame_pos:      Vec::new(),
 180         }
 181     }
 182 }
 183
 184
 185 pub struct BinkDemuxerCreator { }
 186
 187 impl DemuxerCreator for BinkDemuxerCreator {
 188     fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> {
 189         Box::new(BinkDemuxer::new(br))
 190     }
 191     fn get_name(&self) -> &'static str { "bink" }
 192 }
 193
 194 #[cfg(test)]
 195 mod test {
 196     use super::*;
 197     use std::fs::File;
 198
 199     #[test]
 200     fn test_bink_demux() {
 201         let mut file = File::open("assets/RAD/ActivisionLogo.bik").unwrap();
 202 //        let mut file = File::open("assets/RAD/original.bik").unwrap();
 203 //        let mut file = File::open("assets/RAD/Snd0a110c51.dee").unwrap();
 204 //        let mut file = File::open("assets/RAD/NEW.BIK").unwrap();
 205 //        let mut file = File::open("assets/RAD/ge_video_86l.bk2").unwrap();
 206         let mut fr = FileReader::new_read(&mut file);
 207         let mut br = ByteReader::new(&mut fr);
 208         let mut dmx = BinkDemuxer::new(&mut br);
 209         let mut sm = StreamManager::new();
 210         let mut si = SeekIndex::new();
 211         dmx.open(&mut sm, &mut si).unwrap();
 212         loop {
 213             let pktres = dmx.get_frame(&mut sm);
 214             if let Err(e) = pktres {
 215                 if (e as i32) == (DemuxerError::EOF as i32) { break; }
 216                 panic!("error");
 217             }
 218             let pkt = pktres.unwrap();
 219             println!("Got {}", pkt);
 220         }
 221     }
 222 }