| 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]; |
| 27 | validate!(version >= 3 && version <= 7); |
| 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..])?; |
| 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, 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 | } |
| 68 | } |
| 69 | } |
| 70 | self.apts = 0; |
| 71 | self.vpts = 0; |
| 72 | self.side_data.clear(); |
| 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 stream = strmgr.get_stream(a_id).unwrap(); |
| 85 | let ts = stream.make_ts(Some(self.apts), None, None); |
| 86 | self.apts += (size / self.bps) as u64; |
| 87 | return self.src.read_packet(stream, ts, true, size); |
| 88 | } else { |
| 89 | self.src.read_skip(size)?; |
| 90 | } |
| 91 | }, |
| 92 | 1 => { |
| 93 | validate!(size <= 768); |
| 94 | let cur_len = self.side_data.len(); |
| 95 | self.side_data.resize(cur_len + size + 6, 0); |
| 96 | self.side_data[cur_len] = ctype as u8; |
| 97 | write_u32le(&mut self.side_data[cur_len + 2..], size as u32)?; |
| 98 | self.src.read_buf(&mut self.side_data[cur_len + 6..])?; |
| 99 | }, |
| 100 | 2 | 3 | 4 | 11 => { |
| 101 | validate!(self.v_id.is_some()); |
| 102 | let stream = strmgr.get_stream(self.v_id.unwrap_or(0)).unwrap(); |
| 103 | let ts = stream.make_ts(Some(self.vpts), None, None); |
| 104 | self.vpts += 1; |
| 105 | |
| 106 | let cur_len = self.side_data.len(); |
| 107 | self.side_data.resize(cur_len + size + 6, 0); |
| 108 | self.side_data[cur_len] = ctype as u8; |
| 109 | self.side_data[cur_len] = ctype as u8; |
| 110 | write_u32le(&mut self.side_data[cur_len + 2..], size as u32)?; |
| 111 | if let Err(err) = self.src.read_buf(&mut self.side_data[cur_len + 6..]) { |
| 112 | self.side_data.truncate(cur_len); |
| 113 | return Err(err.into()); |
| 114 | } |
| 115 | let mut buf = Vec::new(); |
| 116 | std::mem::swap(&mut buf, &mut self.side_data); |
| 117 | return Ok(NAPacket::new(stream, ts, self.vpts == 1, buf)); |
| 118 | }, |
| 119 | 5 => { |
| 120 | validate!(size <= 256); |
| 121 | let cur_len = self.side_data.len(); |
| 122 | self.side_data.resize(cur_len + size + 6, 0); |
| 123 | self.side_data[cur_len] = ctype as u8; |
| 124 | write_u32le(&mut self.side_data[cur_len + 2..], size as u32)?; |
| 125 | self.src.read_buf(&mut self.side_data[cur_len + 6..])?; |
| 126 | }, |
| 127 | 6 | 7 => { |
| 128 | self.side_data.push(ctype as u8); |
| 129 | self.side_data.push(0); |
| 130 | self.side_data.push(0); |
| 131 | self.side_data.push(0); |
| 132 | self.side_data.push(0); |
| 133 | self.side_data.push(0); |
| 134 | }, |
| 135 | 8 => return Err(DemuxerError::InvalidData), //should be handled before main loop |
| 136 | 9 => { // first part of interlaced frame |
| 137 | let cur_len = self.side_data.len(); |
| 138 | self.side_data.resize(cur_len + size + 6, 0); |
| 139 | self.side_data[cur_len] = ctype as u8; |
| 140 | write_u32le(&mut self.side_data[cur_len + 2..], size as u32)?; |
| 141 | self.src.read_buf(&mut self.side_data[cur_len + 6..])?; |
| 142 | }, |
| 143 | _ => { |
| 144 | self.src.read_skip(size)?; |
| 145 | }, |
| 146 | }; |
| 147 | } |
| 148 | } |
| 149 | |
| 150 | fn seek(&mut self, _time: NATimePoint, _seek_index: &SeekIndex) -> DemuxerResult<()> { |
| 151 | Err(DemuxerError::NotPossible) |
| 152 | } |
| 153 | fn get_duration(&self) -> u64 { self.duration } |
| 154 | } |
| 155 | impl<'a> NAOptionHandler for QDemuxer<'a> { |
| 156 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } |
| 157 | fn set_options(&mut self, _options: &[NAOption]) { } |
| 158 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } |
| 159 | } |
| 160 | impl<'a> QDemuxer<'a> { |
| 161 | fn new(io: &'a mut ByteReader<'a>) -> Self { |
| 162 | QDemuxer { |
| 163 | src: io, |
| 164 | vpts: 0, |
| 165 | apts: 0, |
| 166 | bps: 0, |
| 167 | a_id: None, |
| 168 | v_id: None, |
| 169 | nframes: 0, |
| 170 | duration: 0, |
| 171 | side_data: Vec::with_capacity(256 + 6), |
| 172 | } |
| 173 | } |
| 174 | } |
| 175 | |
| 176 | pub struct QDemuxerCreator { } |
| 177 | |
| 178 | impl DemuxerCreator for QDemuxerCreator { |
| 179 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> { |
| 180 | Box::new(QDemuxer::new(br)) |
| 181 | } |
| 182 | fn get_name(&self) -> &'static str { "legend-q" } |
| 183 | } |
| 184 | |
| 185 | #[cfg(test)] |
| 186 | mod test { |
| 187 | use super::*; |
| 188 | use std::fs::File; |
| 189 | |
| 190 | // samples from Death Gate, Mission Critical and Shannara games |
| 191 | #[test] |
| 192 | fn test_q_demux_v3() { |
| 193 | let mut file = File::open("assets/Game/dgate101.q").unwrap(); |
| 194 | let mut fr = FileReader::new_read(&mut file); |
| 195 | let mut br = ByteReader::new(&mut fr); |
| 196 | let mut dmx = QDemuxer::new(&mut br); |
| 197 | let mut sm = StreamManager::new(); |
| 198 | let mut si = SeekIndex::new(); |
| 199 | dmx.open(&mut sm, &mut si).unwrap(); |
| 200 | loop { |
| 201 | let pktres = dmx.get_frame(&mut sm); |
| 202 | if let Err(e) = pktres { |
| 203 | if (e as i32) == (DemuxerError::EOF as i32) { break; } |
| 204 | panic!("error"); |
| 205 | } |
| 206 | let pkt = pktres.unwrap(); |
| 207 | println!("Got {}", pkt); |
| 208 | } |
| 209 | } |
| 210 | |
| 211 | #[test] |
| 212 | fn test_q_demux_v4() { |
| 213 | let mut file = File::open("assets/Game/1425A5.Q").unwrap(); |
| 214 | let mut fr = FileReader::new_read(&mut file); |
| 215 | let mut br = ByteReader::new(&mut fr); |
| 216 | let mut dmx = QDemuxer::new(&mut br); |
| 217 | let mut sm = StreamManager::new(); |
| 218 | let mut si = SeekIndex::new(); |
| 219 | dmx.open(&mut sm, &mut si).unwrap(); |
| 220 | loop { |
| 221 | let pktres = dmx.get_frame(&mut sm); |
| 222 | if let Err(e) = pktres { |
| 223 | if (e as i32) == (DemuxerError::EOF as i32) { break; } |
| 224 | panic!("error"); |
| 225 | } |
| 226 | let pkt = pktres.unwrap(); |
| 227 | println!("Got {}", pkt); |
| 228 | } |
| 229 | } |
| 230 | |
| 231 | #[test] |
| 232 | fn test_q_demux_v5() { |
| 233 | let mut file = File::open("assets/Game/mc703.q").unwrap(); |
| 234 | let mut fr = FileReader::new_read(&mut file); |
| 235 | let mut br = ByteReader::new(&mut fr); |
| 236 | let mut dmx = QDemuxer::new(&mut br); |
| 237 | let mut sm = StreamManager::new(); |
| 238 | let mut si = SeekIndex::new(); |
| 239 | dmx.open(&mut sm, &mut si).unwrap(); |
| 240 | loop { |
| 241 | let pktres = dmx.get_frame(&mut sm); |
| 242 | if let Err(e) = pktres { |
| 243 | if (e as i32) == (DemuxerError::EOF as i32) { break; } |
| 244 | panic!("error"); |
| 245 | } |
| 246 | let pkt = pktres.unwrap(); |
| 247 | println!("Got {}", pkt); |
| 248 | } |
| 249 | } |
| 250 | } |