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use nihav_core::demuxers::*;
use nihav_core::io::byteio::ByteReader;
struct AudioTrack {
id: usize,
}
const BINK_AUD_FLAG_DCT: u8 = 0x10;
const BINK_AUD_FLAG_STEREO: u8 = 0x20;
impl AudioTrack {
fn new(strmgr: &mut StreamManager, srate: u32, flags: u8, str_id: usize, magic: [u8; 4]) -> DemuxerResult<Self> {
let channels = if (flags & BINK_AUD_FLAG_STEREO) != 0 { 2 } else { 1 };
let codecname = if (flags & BINK_AUD_FLAG_DCT) != 0 {
"bink-audio-dct"
} else {
"bink-audio-rdft"
};
let ahdr = NAAudioInfo::new(srate, channels, SND_F32P_FORMAT, 1);
let mut edata: Vec<u8> = Vec::with_capacity(4);
edata.extend_from_slice(&magic);
let ainfo = NACodecInfo::new(codecname, NACodecTypeInfo::Audio(ahdr), Some(edata));
let res = strmgr.add_stream(NAStream::new(StreamType::Audio, (str_id + 1) as u32, ainfo, 1, srate));
validate!(res.is_some());
let id = res.unwrap();
Ok(Self{ id })
}
}
struct BinkDemuxer<'a> {
src: &'a mut ByteReader<'a>,
cur_frame: usize,
frames: usize,
video_id: usize,
tb_num: u32,
tb_den: u32,
ainfo: Vec<AudioTrack>,
queued_packets: Vec<NAPacket>,
frame_pos: Vec<u32>,
}
macro_rules! mktag {
($a:expr, $b:expr, $c:expr, $d:expr) => ({
(($a as u32) << 24) | (($b as u32) << 16) | (($c as u32) << 8) | ($d as u32)
});
($arr:expr) => ({
(($arr[0] as u32) << 24) | (($arr[1] as u32) << 16) | (($arr[2] as u32) << 8) | ($arr[3] as u32)
});
}
impl<'a> DemuxCore<'a> for BinkDemuxer<'a> {
fn open(&mut self, strmgr: &mut StreamManager, seek_idx: &mut SeekIndex) -> DemuxerResult<()> {
let src = &mut self.src;
let mut magic: [u8; 4] = [0; 4];
src.read_buf(&mut magic)?;
let magic_tag = mktag!(magic);
validate!((magic_tag >= mktag!(b"BIKb") && magic_tag <= mktag!(b"BIKk")) ||
(magic_tag >= mktag!(b"KB2a") && magic_tag <= mktag!(b"KB2k")));
let fsize = (src.read_u32le()? as usize) + 8;
self.frames = src.read_u32le()? as usize;
let max_size = src.read_u32le()? as usize;
let _frames2 = src.read_u32le()? as usize;
let width = src.read_u32le()? as usize;
let height = src.read_u32le()? as usize;
let tb_den = src.read_u32le()?;
let tb_num = src.read_u32le()?;
validate!((width > 0) && (height > 0) && (width <= 7680) && (height <= 4800));
validate!((self.frames > 0) && (tb_num > 0) && (tb_den > 0) && (max_size < fsize));
self.tb_num = tb_num;
self.tb_den = tb_den;
let mut flags: [u8; 4] = [0; 4];
src.read_buf(&mut flags)?;
let mut edata: Vec<u8> = vec![0; 8];
let p0 = &mut edata[0..4];
p0.copy_from_slice(&magic);
let p1 = &mut edata[4..][..4];
p1.copy_from_slice(&flags);
let vhdr = NAVideoInfo::new(width, height, false, YUV420_FORMAT);
let codec = if magic[0] == b'K' && magic[1] == b'B' && magic[2] == b'2' { "bink2-video" } else { "bink-video" };
let vinfo = NACodecInfo::new(codec, NACodecTypeInfo::Video(vhdr), Some(edata));
let res = strmgr.add_stream(NAStream::new(StreamType::Video, 0, vinfo, self.tb_num, self.tb_den));
validate!(res.is_some());
self.video_id = res.unwrap();
let num_audio = src.read_u32le()? as usize;
if magic_tag >= mktag!(b"KB2i") {
src.read_skip(4)?;
}
validate!(num_audio < 256);
src.read_skip(num_audio * 4)?; // audio max output frame size?
self.ainfo = Vec::with_capacity(num_audio);
for i in 0..num_audio {
let srate = src.read_u24le()?;
let flags = src.read_byte()?;
validate!(srate > 0);
self.ainfo.push(AudioTrack::new(strmgr, srate, flags, i, magic)?);
}
for _ in 0..num_audio {
let _trk_id = src.read_u32le()?;
}
seek_idx.mode = SeekIndexMode::Present;
seek_idx.add_stream(0);
self.frame_pos = Vec::with_capacity(self.frames + 1);
for fno in 0..=self.frames {
let pos = src.read_u32le()?;
self.frame_pos.push(pos);
if (pos & 1) != 0 {
let time = (fno as u64) * 1000 * (tb_num as u64) / (tb_den as u64);
seek_idx.seek_info[0].add_entry(SeekEntry { time, pts: fno as u64, pos: (pos & !1) as u64 });
}
}
validate!((src.tell() as u32) == (self.frame_pos[0] & !1));
seek_idx.seek_info[0].filled = true;
self.cur_frame = 0;
Ok(())
}
fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> {
if !self.queued_packets.is_empty() {
let pkt = self.queued_packets.pop().unwrap();
return Ok(pkt);
}
if self.cur_frame >= self.frames { return Err(DemuxerError::EOF); }
let mut payload_size = ((self.frame_pos[self.cur_frame + 1] & !1) - (self.frame_pos[self.cur_frame] & !1)) as usize;
validate!(payload_size > self.ainfo.len() * 4);
for atrk in self.ainfo.iter() {
let size = self.src.read_u32le()? as usize;
validate!(payload_size > size + 4);
payload_size -= size + 4;
if size > 0 {
let strres = strmgr.get_stream(atrk.id);
validate!(strres.is_some());
let stream = strres.unwrap();
let ts = NATimeInfo::new(Some(self.cur_frame as u64), None, None, self.tb_num, self.tb_den);
let pkt = self.src.read_packet(stream.clone(), ts, true, size)?;
self.queued_packets.push(pkt);
}
}
self.queued_packets.reverse();
let strres = strmgr.get_stream(self.video_id);
validate!(strres.is_some());
let stream = strres.unwrap();
let keyframe = (self.frame_pos[self.cur_frame] & 1) != 0;
let ts = NATimeInfo::new(Some(self.cur_frame as u64), None, None, self.tb_num, self.tb_den);
let pkt = self.src.read_packet(stream.clone(), ts, keyframe, payload_size)?;
self.cur_frame += 1;
Ok(pkt)
}
fn seek(&mut self, time: u64, seek_idx: &SeekIndex) -> DemuxerResult<()> {
let ret = seek_idx.find_pos(time);
if ret.is_none() {
return Err(DemuxerError::SeekError);
}
let seek_info = ret.unwrap();
self.src.seek(SeekFrom::Start(seek_info.pos))?;
self.queued_packets.clear();
self.cur_frame = seek_info.pts as usize;
Ok(())
}
}
impl<'a> NAOptionHandler for BinkDemuxer<'a> {
fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] }
fn set_options(&mut self, _options: &[NAOption]) { }
fn query_option_value(&self, _name: &str) -> Option<NAValue> { None }
}
impl<'a> BinkDemuxer<'a> {
fn new(io: &'a mut ByteReader<'a>) -> Self {
Self {
src: io,
cur_frame: 0,
frames: 0,
video_id: 0,
tb_num: 0,
tb_den: 0,
ainfo: Vec::new(),
queued_packets: Vec::new(),
frame_pos: Vec::new(),
}
}
}
pub struct BinkDemuxerCreator { }
impl DemuxerCreator for BinkDemuxerCreator {
fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> {
Box::new(BinkDemuxer::new(br))
}
fn get_name(&self) -> &'static str { "bink" }
}
#[cfg(test)]
mod test {
use super::*;
use std::fs::File;
#[test]
fn test_bink_demux() {
let mut file = File::open("assets/RAD/ActivisionLogo.bik").unwrap();
// let mut file = File::open("assets/RAD/original.bik").unwrap();
// let mut file = File::open("assets/RAD/Snd0a110c51.dee").unwrap();
// let mut file = File::open("assets/RAD/NEW.BIK").unwrap();
// let mut file = File::open("assets/RAD/ge_video_86l.bk2").unwrap();
let mut fr = FileReader::new_read(&mut file);
let mut br = ByteReader::new(&mut fr);
let mut dmx = BinkDemuxer::new(&mut br);
let mut sm = StreamManager::new();
let mut si = SeekIndex::new();
dmx.open(&mut sm, &mut si).unwrap();
loop {
let pktres = dmx.get_frame(&mut sm);
if let Err(e) = pktres {
if (e as i32) == (DemuxerError::EOF as i32) { break; }
panic!("error");
}
let pkt = pktres.unwrap();
println!("Got {}", pkt);
}
}
}
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