[nihav.git] / nihav-game / src / demuxers / q.rs

use nihav_core::frame::*;
use nihav_core::demuxers::*;

#[allow(dead_code)]
struct QDemuxer<'a> {
    src:        &'a mut ByteReader<'a>,
    vpts:       u64,
    apts:       u64,
    bps:        usize,
    a_id:       Option<usize>,
    v_id:       Option<usize>,
    nframes:    usize,
    duration:   u64,
    side_data:  Vec<u8>,
}

impl<'a> DemuxCore<'a> for QDemuxer<'a> {
    #[allow(unused_variables)]
    fn open(&mut self, strmgr: &mut StreamManager, _seek_index: &mut SeekIndex) -> DemuxerResult<()> {
        let src = &mut self.src;

        let mut hdr = [0; 22];
                                          src.read_buf(&mut hdr)?;
        validate!(hdr[0] == 0x39);
        validate!(hdr[1] == 0x68);
        let version = hdr[2];
        validate!(version >= 3 && version <= 7);
        let mut width  = read_u16le(&hdr[4..])? as usize;
        let mut height = read_u16le(&hdr[6..])? as usize;
        if version > 3 {
            width  *= hdr[8] as usize;
            height *= hdr[9] as usize;
        }
        validate!(width > 0 && width <= 800);
        validate!(height > 0 && height <= 600);

        self.nframes = read_u16le(&hdr[10..])? as usize;
        validate!(self.nframes > 0);
        let fps = if hdr[16] == 0 { 5 } else { hdr[16] as u32 };
        self.duration = (self.nframes as u64) * 1000 / u64::from(fps);
        let asize = if version > 3 {
                                          src.read_u32le()?
            } else { 0 };

        let vhdr = NAVideoInfo::new(width, height, false, PAL8_FORMAT);
        let vci = NACodecTypeInfo::Video(vhdr);
        let vinfo = NACodecInfo::new("legend-q-video", vci, Some(hdr.to_vec()));
        self.v_id = strmgr.add_stream(NAStream::new(StreamType::Video, 0, vinfo, 1, fps, self.nframes as u64));
        if asize != 0 {
            let ntype                   = self.src.peek_byte()?;
            if ntype == 8 {
                let _                   = self.src.read_u16le()?;
                let size                = self.src.read_u32le()? as usize;
                validate!(size >= 44);
                let mut buf = vec![0; size];
                                          self.src.read_buf(&mut buf)?;
                let arate = read_u32le(&buf[24..])?;
                if arate > 0 {
                    let channels = buf[22];
                    let abits    = buf[34] as usize;
                    validate!(abits == 8 || abits == 16);
                    self.bps = (channels as usize) * abits / 8;
                    let bsize    = read_u16le(&buf[32..])? as usize;
                    let ahdr = NAAudioInfo::new(arate, channels as u8, if abits == 16 { SND_S16_FORMAT } else { SND_U8_FORMAT }, bsize);
                    let ainfo = NACodecInfo::new("pcm", NACodecTypeInfo::Audio(ahdr), None);
                    self.a_id = strmgr.add_stream(NAStream::new(StreamType::Audio, 1, ainfo, 1, arate, 2));
                }
            }
        }
        self.apts = 0;
        self.vpts = 0;
        self.side_data.clear();
        Ok(())
    }

    fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> {
        loop {
            let ctype                   = self.src.read_u16le()?;
            let size                    = self.src.read_u32le()? as usize;
            match ctype {
                0xFFFF => return Err(DemuxerError::EOF),
                0 => {
                    if let Some(a_id) = self.a_id {
                        let str = strmgr.get_stream(a_id).unwrap();
                        let (tb_num, tb_den) = str.get_timebase();
                        let ts = NATimeInfo::new(Some(self.apts), None, None, tb_num, tb_den);
                        self.apts += (size / self.bps) as u64;
                        return self.src.read_packet(str, ts, true, size);
                    } else {
                                          self.src.read_skip(size)?;
                    }
                },
                1 => {
                    validate!(size <= 768);
                    let cur_len = self.side_data.len();
                    self.side_data.resize(cur_len + size + 6, 0);
                    self.side_data[cur_len] = ctype as u8;
                    write_u32le(&mut self.side_data[cur_len + 2..], size as u32)?;
                                          self.src.read_buf(&mut self.side_data[cur_len + 6..])?;
                },
                2 | 3 | 4 | 11 => {
                    validate!(self.v_id.is_some());
                    let str = strmgr.get_stream(self.v_id.unwrap_or(0)).unwrap();
                    let (tb_num, tb_den) = str.get_timebase();
                    let ts = NATimeInfo::new(Some(self.vpts), None, None, tb_num, tb_den);
                    self.vpts += 1;

                    let cur_len = self.side_data.len();
                    self.side_data.resize(cur_len + size + 6, 0);
                    self.side_data[cur_len] = ctype as u8;
                    self.side_data[cur_len] = ctype as u8;
                    write_u32le(&mut self.side_data[cur_len + 2..], size as u32)?;
                    if let Err(err)       = self.src.read_buf(&mut self.side_data[cur_len + 6..]) {
                        self.side_data.truncate(cur_len);
                        return Err(err.into());
                    }
                    let mut buf = Vec::new();
                    std::mem::swap(&mut buf, &mut self.side_data);
                    return Ok(NAPacket::new(str, ts, self.vpts == 1, buf));
                },
                5 => {
                    validate!(size <= 256);
                    let cur_len = self.side_data.len();
                    self.side_data.resize(cur_len + size + 6, 0);
                    self.side_data[cur_len] = ctype as u8;
                    write_u32le(&mut self.side_data[cur_len + 2..], size as u32)?;
                                          self.src.read_buf(&mut self.side_data[cur_len + 6..])?;
                },
                6 | 7 => {
                    self.side_data.push(ctype as u8);
                    self.side_data.push(0);
                    self.side_data.push(0);
                    self.side_data.push(0);
                    self.side_data.push(0);
                    self.side_data.push(0);
                },
                8 => return Err(DemuxerError::InvalidData), //should be handled before main loop
                9 => { // first part of interlaced frame
                    let cur_len = self.side_data.len();
                    self.side_data.resize(cur_len + size + 6, 0);
                    self.side_data[cur_len] = ctype as u8;
                    write_u32le(&mut self.side_data[cur_len + 2..], size as u32)?;
                                          self.src.read_buf(&mut self.side_data[cur_len + 6..])?;
                },
                _ => {
                                          self.src.read_skip(size)?;
                },
            };
        }
    }

    fn seek(&mut self, _time: NATimePoint, _seek_index: &SeekIndex) -> DemuxerResult<()> {
        Err(DemuxerError::NotPossible)
    }
    fn get_duration(&self) -> u64 { self.duration }
}
impl<'a> NAOptionHandler for QDemuxer<'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> QDemuxer<'a> {
    fn new(io: &'a mut ByteReader<'a>) -> Self {
        QDemuxer {
            src:        io,
            vpts:       0,
            apts:       0,
            bps:        0,
            a_id:       None,
            v_id:       None,
            nframes:    0,
            duration:   0,
            side_data:  Vec::with_capacity(256 + 6),
        }
    }
}

pub struct QDemuxerCreator { }

impl DemuxerCreator for QDemuxerCreator {
    fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> {
        Box::new(QDemuxer::new(br))
    }
    fn get_name(&self) -> &'static str { "legend-q" }
}

#[cfg(test)]
mod test {
    use super::*;
    use std::fs::File;

    // samples from Death Gate, Mission Critical and Shannara games
    #[test]
    fn test_q_demux_v3() {
        let mut file = File::open("assets/Game/dgate101.q").unwrap();
        let mut fr = FileReader::new_read(&mut file);
        let mut br = ByteReader::new(&mut fr);
        let mut dmx = QDemuxer::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);
        }
    }

    #[test]
    fn test_q_demux_v4() {
        let mut file = File::open("assets/Game/1425A5.Q").unwrap();
        let mut fr = FileReader::new_read(&mut file);
        let mut br = ByteReader::new(&mut fr);
        let mut dmx = QDemuxer::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);
        }
    }

    #[test]
    fn test_q_demux_v5() {
        let mut file = File::open("assets/Game/mc703.q").unwrap();
        let mut fr = FileReader::new_read(&mut file);
        let mut br = ByteReader::new(&mut fr);
        let mut dmx = QDemuxer::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);
        }
    }
}
Commit	Line	Data
afe1e5ba KS	1	use nihav_core::frame::*;
	2	use nihav_core::demuxers::*;
	3
	4	#[allow(dead_code)]
	5	struct QDemuxer<'a> {
	6	src: &'a mut ByteReader<'a>,
	7	vpts: u64,
	8	apts: u64,
	9	bps: usize,
	10	a_id: Option<usize>,
	11	v_id: Option<usize>,
	12	nframes: usize,
	13	duration: u64,
	14	side_data: Vec<u8>,
	15	}
	16
	17	impl<'a> DemuxCore<'a> for QDemuxer<'a> {
	18	#[allow(unused_variables)]
	19	fn open(&mut self, strmgr: &mut StreamManager, _seek_index: &mut SeekIndex) -> DemuxerResult<()> {
	20	let src = &mut self.src;
	21
	22	let mut hdr = [0; 22];
	23	src.read_buf(&mut hdr)?;
	24	validate!(hdr[0] == 0x39);
	25	validate!(hdr[1] == 0x68);
	26	let version = hdr[2];
2826a23f	27	validate!(version >= 3 && version <= 7);
afe1e5ba KS	28	let mut width = read_u16le(&hdr[4..])? as usize;
	29	let mut height = read_u16le(&hdr[6..])? as usize;
	30	if version > 3 {
	31	width *= hdr[8] as usize;
	32	height *= hdr[9] as usize;
	33	}
	34	validate!(width > 0 && width <= 800);
	35	validate!(height > 0 && height <= 600);
	36
	37	self.nframes = read_u16le(&hdr[10..])? as usize;
	38	validate!(self.nframes > 0);
	39	let fps = if hdr[16] == 0 { 5 } else { hdr[16] as u32 };
	40	self.duration = (self.nframes as u64) * 1000 / u64::from(fps);
	41	let asize = if version > 3 {
	42	src.read_u32le()?
	43	} else { 0 };
	44
	45	let vhdr = NAVideoInfo::new(width, height, false, PAL8_FORMAT);
	46	let vci = NACodecTypeInfo::Video(vhdr);
	47	let vinfo = NACodecInfo::new("legend-q-video", vci, Some(hdr.to_vec()));
	48	self.v_id = strmgr.add_stream(NAStream::new(StreamType::Video, 0, vinfo, 1, fps, self.nframes as u64));
	49	if asize != 0 {
	50	let ntype = self.src.peek_byte()?;
	51	if ntype == 8 {
	52	let _ = self.src.read_u16le()?;
	53	let size = self.src.read_u32le()? as usize;
	54	validate!(size >= 44);
	55	let mut buf = vec![0; size];
	56	self.src.read_buf(&mut buf)?;
	57	let arate = read_u32le(&buf[24..])?;
2826a23f KS	58	if arate > 0 {
	59	let channels = buf[22];
	60	let abits = buf[34] as usize;
	61	validate!(abits == 8 \|\| abits == 16);
	62	self.bps = (channels as usize) * abits / 8;
	63	let bsize = read_u16le(&buf[32..])? as usize;
	64	let ahdr = NAAudioInfo::new(arate, channels as u8, if abits == 16 { SND_S16_FORMAT } else { SND_U8_FORMAT }, bsize);
	65	let ainfo = NACodecInfo::new("pcm", NACodecTypeInfo::Audio(ahdr), None);
	66	self.a_id = strmgr.add_stream(NAStream::new(StreamType::Audio, 1, ainfo, 1, arate, 2));
	67	}
afe1e5ba KS	68	}
	69	}
	70	self.apts = 0;
	71	self.vpts = 0;
37952415	72	self.side_data.clear();
afe1e5ba KS	73	Ok(())
	74	}
	75
	76	fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> {
	77	loop {
	78	let ctype = self.src.read_u16le()?;
	79	let size = self.src.read_u32le()? as usize;
	80	match ctype {
	81	0xFFFF => return Err(DemuxerError::EOF),
	82	0 => {
	83	if let Some(a_id) = self.a_id {
	84	let str = strmgr.get_stream(a_id).unwrap();
	85	let (tb_num, tb_den) = str.get_timebase();
	86	let ts = NATimeInfo::new(Some(self.apts), None, None, tb_num, tb_den);
	87	self.apts += (size / self.bps) as u64;
	88	return self.src.read_packet(str, ts, true, size);
	89	} else {
2826a23f	90	self.src.read_skip(size)?;
afe1e5ba KS	91	}
	92	},
	93	1 => {
	94	validate!(size <= 768);
	95	let cur_len = self.side_data.len();
	96	self.side_data.resize(cur_len + size + 6, 0);
	97	self.side_data[cur_len] = ctype as u8;
	98	write_u32le(&mut self.side_data[cur_len + 2..], size as u32)?;
	99	self.src.read_buf(&mut self.side_data[cur_len + 6..])?;
	100	},
	101	2 \| 3 \| 4 \| 11 => {
	102	validate!(self.v_id.is_some());
	103	let str = strmgr.get_stream(self.v_id.unwrap_or(0)).unwrap();
	104	let (tb_num, tb_den) = str.get_timebase();
	105	let ts = NATimeInfo::new(Some(self.vpts), None, None, tb_num, tb_den);
	106	self.vpts += 1;
	107
	108	let cur_len = self.side_data.len();
	109	self.side_data.resize(cur_len + size + 6, 0);
	110	self.side_data[cur_len] = ctype as u8;
	111	self.side_data[cur_len] = ctype as u8;
	112	write_u32le(&mut self.side_data[cur_len + 2..], size as u32)?;
	113	if let Err(err) = self.src.read_buf(&mut self.side_data[cur_len + 6..]) {
	114	self.side_data.truncate(cur_len);
	115	return Err(err.into());
	116	}
	117	let mut buf = Vec::new();
	118	std::mem::swap(&mut buf, &mut self.side_data);
	119	return Ok(NAPacket::new(str, ts, self.vpts == 1, buf));
	120	},
	121	5 => {
	122	validate!(size <= 256);
	123	let cur_len = self.side_data.len();
	124	self.side_data.resize(cur_len + size + 6, 0);
	125	self.side_data[cur_len] = ctype as u8;
	126	write_u32le(&mut self.side_data[cur_len + 2..], size as u32)?;
	127	self.src.read_buf(&mut self.side_data[cur_len + 6..])?;
	128	},
	129	6 \| 7 => {
	130	self.side_data.push(ctype as u8);
	131	self.side_data.push(0);
	132	self.side_data.push(0);
	133	self.side_data.push(0);
	134	self.side_data.push(0);
	135	self.side_data.push(0);
	136	},
	137	8 => return Err(DemuxerError::InvalidData), //should be handled before main loop
	138	9 => { // first part of interlaced frame
	139	let cur_len = self.side_data.len();
	140	self.side_data.resize(cur_len + size + 6, 0);
	141	self.side_data[cur_len] = ctype as u8;
	142	write_u32le(&mut self.side_data[cur_len + 2..], size as u32)?;
	143	self.src.read_buf(&mut self.side_data[cur_len + 6..])?;
	144	},
	145	_ => {
	146	self.src.read_skip(size)?;
	147	},
	148	};
	149	}
	150	}
	151
	152	fn seek(&mut self, _time: NATimePoint, _seek_index: &SeekIndex) -> DemuxerResult<()> {
	153	Err(DemuxerError::NotPossible)
	154	}
155	fn get_duration(&self) -> u64 { self.duration }
156	}
157	impl<'a> NAOptionHandler for QDemuxer<'a> {
158	fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] }
159	fn set_options(&mut self, _options: &[NAOption]) { }
160	fn query_option_value(&self, _name: &str) -> Option<NAValue> { None }
161	}
162	impl<'a> QDemuxer<'a> {
163	fn new(io: &'a mut ByteReader<'a>) -> Self {
164	QDemuxer {
165	src: io,
166	vpts: 0,
167	apts: 0,
168	bps: 0,
169	a_id: None,
170	v_id: None,
171	nframes: 0,
172	duration: 0,
173	side_data: Vec::with_capacity(256 + 6),
174	}
175	}
176	}
177
178	pub struct QDemuxerCreator { }
179
180	impl DemuxerCreator for QDemuxerCreator {
181	fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> {
182	Box::new(QDemuxer::new(br))
183	}
184	fn get_name(&self) -> &'static str { "legend-q" }
185	}
186
187	#[cfg(test)]
188	mod test {
189	use super::*;
190	use std::fs::File;
191
886cde48	192	// samples from Death Gate, Mission Critical and Shannara games
afe1e5ba KS	193	#[test]
	194	fn test_q_demux_v3() {
	195	let mut file = File::open("assets/Game/dgate101.q").unwrap();
	196	let mut fr = FileReader::new_read(&mut file);
	197	let mut br = ByteReader::new(&mut fr);
	198	let mut dmx = QDemuxer::new(&mut br);
	199	let mut sm = StreamManager::new();
	200	let mut si = SeekIndex::new();
	201	dmx.open(&mut sm, &mut si).unwrap();
	202	loop {
	203	let pktres = dmx.get_frame(&mut sm);
	204	if let Err(e) = pktres {
	205	if (e as i32) == (DemuxerError::EOF as i32) { break; }
	206	panic!("error");
	207	}
	208	let pkt = pktres.unwrap();
	209	println!("Got {}", pkt);
	210	}
	211	}
	212
	213	#[test]
	214	fn test_q_demux_v4() {
	215	let mut file = File::open("assets/Game/1425A5.Q").unwrap();
	216	let mut fr = FileReader::new_read(&mut file);
	217	let mut br = ByteReader::new(&mut fr);
	218	let mut dmx = QDemuxer::new(&mut br);
	219	let mut sm = StreamManager::new();
	220	let mut si = SeekIndex::new();
	221	dmx.open(&mut sm, &mut si).unwrap();
	222	loop {
	223	let pktres = dmx.get_frame(&mut sm);
	224	if let Err(e) = pktres {
	225	if (e as i32) == (DemuxerError::EOF as i32) { break; }
	226	panic!("error");
	227	}
	228	let pkt = pktres.unwrap();
	229	println!("Got {}", pkt);
	230	}
	231	}
	232
	233	#[test]
	234	fn test_q_demux_v5() {
	235	let mut file = File::open("assets/Game/mc703.q").unwrap();
	236	let mut fr = FileReader::new_read(&mut file);
	237	let mut br = ByteReader::new(&mut fr);
	238	let mut dmx = QDemuxer::new(&mut br);
	239	let mut sm = StreamManager::new();
	240	let mut si = SeekIndex::new();
	241	dmx.open(&mut sm, &mut si).unwrap();
	242	loop {
	243	let pktres = dmx.get_frame(&mut sm);
	244	if let Err(e) = pktres {
	245	if (e as i32) == (DemuxerError::EOF as i32) { break; }
	246	panic!("error");
	247	}
	248	let pkt = pktres.unwrap();
	249	println!("Got {}", pkt);
	250	}
	251	}
	252	}