| 1 | use nihav_core::frame::*; |
| 2 | use nihav_core::demuxers::*; |
| 3 | use std::io::SeekFrom; |
| 4 | |
| 5 | const OLD_HEADER_SIZE: usize = 0x330; |
| 6 | const NEW_HEADER_SIZE: usize = 0x34; |
| 7 | const HEADER1_SIZE: usize = 28; |
| 8 | const HEADER2_OFF: usize = HEADER1_SIZE + 768; |
| 9 | const FRAME_HDR_SIZE: usize = 10; |
| 10 | |
| 11 | const CHTYPE_VIDEO: u8 = 0x02; |
| 12 | const CHTYPE_AUDIO: u8 = 0x01; |
| 13 | |
| 14 | #[derive(Clone,Copy)] |
| 15 | struct FrameRec { |
| 16 | chtype: u8, |
| 17 | size: u32, |
| 18 | off: u32, |
| 19 | hdr: [u8; FRAME_HDR_SIZE], |
| 20 | ts: u32, |
| 21 | } |
| 22 | |
| 23 | struct VMDDemuxer<'a> { |
| 24 | src: &'a mut ByteReader<'a>, |
| 25 | vid_id: usize, |
| 26 | aud_id: usize, |
| 27 | fno: usize, |
| 28 | is_indeo: bool, |
| 29 | is_lhaud: bool, |
| 30 | frames: Vec<FrameRec>, |
| 31 | } |
| 32 | |
| 33 | impl<'a> DemuxCore<'a> for VMDDemuxer<'a> { |
| 34 | #[allow(unused_variables)] |
| 35 | fn open(&mut self, strmgr: &mut StreamManager, _seek_index: &mut SeekIndex) -> DemuxerResult<()> { |
| 36 | let src = &mut self.src; |
| 37 | |
| 38 | let mut header: [u8; OLD_HEADER_SIZE] = [0; OLD_HEADER_SIZE]; |
| 39 | src.read_buf(&mut header[..HEADER1_SIZE])?; |
| 40 | let hdr_size = read_u16le(&header)? as usize + 2; |
| 41 | validate!(hdr_size == OLD_HEADER_SIZE || hdr_size == NEW_HEADER_SIZE); |
| 42 | if hdr_size == OLD_HEADER_SIZE { |
| 43 | src.read_buf(&mut header[HEADER1_SIZE..][..768])?; |
| 44 | } |
| 45 | src.read_buf(&mut header[HEADER2_OFF..])?; |
| 46 | |
| 47 | let mut width = read_u16le(&header[12..])? as usize; |
| 48 | let mut height = read_u16le(&header[14..])? as usize; |
| 49 | self.is_indeo = &header[24..27] == b"iv3"; |
| 50 | if self.is_indeo && width > 320 { |
| 51 | width >>= 1; |
| 52 | height >>= 1; |
| 53 | } |
| 54 | |
| 55 | let nframes = read_u16le(&header[6..])? as usize; |
| 56 | let fpb = read_u16le(&header[18..])? as usize; |
| 57 | validate!(nframes > 0 && fpb > 0); |
| 58 | |
| 59 | let mut edata: Vec<u8> = Vec::with_capacity(OLD_HEADER_SIZE); |
| 60 | edata.extend_from_slice(&header); |
| 61 | let vhdr = NAVideoInfo::new(width, height, false, PAL8_FORMAT); |
| 62 | let vci = NACodecTypeInfo::Video(vhdr); |
| 63 | let vinfo = NACodecInfo::new(if !self.is_indeo { "vmd-video" } else { "indeo3" }, vci, Some(edata)); |
| 64 | self.vid_id = strmgr.add_stream(NAStream::new(StreamType::Video, 0, vinfo, 1, 12, nframes as u64)).unwrap(); |
| 65 | |
| 66 | let is_ext_audio = (hdr_size & 0xF) == 4; |
| 67 | let ext_audio_id = if is_ext_audio { |
| 68 | src.read_u16le()? |
| 69 | } else { 0 }; |
| 70 | if is_ext_audio { |
| 71 | validate!(ext_audio_id >= 3 && ext_audio_id <= 6); |
| 72 | self.is_lhaud = true; |
| 73 | } |
| 74 | let srate = u32::from(read_u16le(&header[804..])?); |
| 75 | let block_size; |
| 76 | if srate > 0 { |
| 77 | let bsize = read_u16le(&header[806..])? as usize; |
| 78 | let channels = if (header[811] & 0x8F) != 0 { 2 } else { 1 }; |
| 79 | let is16bit; |
| 80 | if (bsize & 0x8000) != 0 { |
| 81 | is16bit = true; |
| 82 | block_size = 0x10000 - bsize; |
| 83 | } else { |
| 84 | is16bit = false; |
| 85 | block_size = bsize; |
| 86 | } |
| 87 | |
| 88 | let mut aedata: Vec<u8> = Vec::with_capacity(2); |
| 89 | aedata.extend_from_slice(&header[810..][..2]); |
| 90 | let ahdr = NAAudioInfo::new(srate, channels, if is16bit { SND_S16P_FORMAT } else { SND_U8_FORMAT }, block_size); |
| 91 | let ac_name = if !is_ext_audio { |
| 92 | "vmd-audio" |
| 93 | } else { |
| 94 | match ext_audio_id { |
| 95 | 3 => "lhst15f8", |
| 96 | 4 => "lhst500f22", |
| 97 | 5 => "lhst250f11", |
| 98 | 6 => "lhst48", |
| 99 | _ => "unknown", |
| 100 | } |
| 101 | }; |
| 102 | let ainfo = NACodecInfo::new(ac_name, NACodecTypeInfo::Audio(ahdr), Some(aedata)); |
| 103 | self.aud_id = strmgr.add_stream(NAStream::new(StreamType::Audio, 1, ainfo, 1, srate, 0)).unwrap(); |
| 104 | } else { |
| 105 | block_size = 0; |
| 106 | } |
| 107 | |
| 108 | let adelay = u32::from(read_u16le(&header[808..])?); |
| 109 | let idx_off = u64::from(read_u32le(&header[812..])?); |
| 110 | src.seek(SeekFrom::Start(idx_off))?; |
| 111 | let mut offs: Vec<u32> = Vec::with_capacity(nframes); |
| 112 | for i in 0..nframes { |
| 113 | let _flags = src.read_u16le()?; |
| 114 | let off = src.read_u32le()?; |
| 115 | offs.push(off); |
| 116 | } |
| 117 | self.frames.reserve(nframes * fpb); |
| 118 | let mut ats = adelay; |
| 119 | for i in 0..nframes { |
| 120 | let mut off = offs[i]; |
| 121 | for _ in 0..fpb { |
| 122 | let chtype = src.read_byte()?; |
| 123 | src.read_skip(1)?; |
| 124 | let mut size = src.read_u32le()?; |
| 125 | let mut hdr: [u8; FRAME_HDR_SIZE] = [0; FRAME_HDR_SIZE]; |
| 126 | src.read_buf(&mut hdr)?; |
| 127 | if (i == 0) && (chtype == CHTYPE_AUDIO) && (size > 4) && ((size as usize) < block_size/2) { |
| 128 | size += 0x10000; |
| 129 | } |
| 130 | if (chtype == CHTYPE_VIDEO || chtype == CHTYPE_AUDIO) && (size > 0) { |
| 131 | let ts = if (i == 0) || (chtype != CHTYPE_AUDIO) { |
| 132 | i as u32 |
| 133 | } else { |
| 134 | ats |
| 135 | }; |
| 136 | self.frames.push(FrameRec { chtype, size, hdr, off, ts }); |
| 137 | } |
| 138 | if i > 0 && chtype == CHTYPE_AUDIO { |
| 139 | ats += 1; |
| 140 | } |
| 141 | if chtype != 0 { |
| 142 | validate!(off.checked_add(size).is_some()); |
| 143 | off += size; |
| 144 | } |
| 145 | } |
| 146 | } |
| 147 | |
| 148 | self.fno = 0; |
| 149 | Ok(()) |
| 150 | } |
| 151 | |
| 152 | fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> { |
| 153 | if self.fno >= self.frames.len() { return Err(DemuxerError::EOF); } |
| 154 | let cur_frame = &self.frames[self.fno]; |
| 155 | //println!("fno {} -> type {} size {} @ {:X} ts {}", self.fno, cur_frame.chtype, cur_frame.size, cur_frame.off, cur_frame.ts); |
| 156 | let next_pos = u64::from(cur_frame.off); |
| 157 | if self.src.tell() != next_pos { |
| 158 | self.src.seek(SeekFrom::Start(next_pos))?; |
| 159 | } |
| 160 | |
| 161 | let is_video = cur_frame.chtype == CHTYPE_VIDEO; |
| 162 | let mut buf: Vec<u8> = Vec::with_capacity(FRAME_HDR_SIZE + (cur_frame.size as usize)); |
| 163 | if !((is_video && self.is_indeo) || (!is_video && self.is_lhaud)) { |
| 164 | buf.extend_from_slice(&cur_frame.hdr); |
| 165 | buf.resize(FRAME_HDR_SIZE + (cur_frame.size as usize), 0); |
| 166 | self.src.read_buf(&mut buf[FRAME_HDR_SIZE..])?; |
| 167 | } else { |
| 168 | buf.resize(cur_frame.size as usize, 0); |
| 169 | self.src.read_buf(&mut buf)?; |
| 170 | } |
| 171 | |
| 172 | self.fno += 1; |
| 173 | |
| 174 | let str_id = if is_video { self.vid_id } else { self.aud_id }; |
| 175 | let str = strmgr.get_stream(str_id).unwrap(); |
| 176 | let (tb_num, tb_den) = str.get_timebase(); |
| 177 | let ts = NATimeInfo::new(Some(u64::from(cur_frame.ts)), None, None, tb_num, tb_den); |
| 178 | let pkt = NAPacket::new(str, ts, false, buf); |
| 179 | |
| 180 | Ok(pkt) |
| 181 | } |
| 182 | |
| 183 | fn seek(&mut self, _time: NATimePoint, _seek_index: &SeekIndex) -> DemuxerResult<()> { |
| 184 | Err(DemuxerError::NotPossible) |
| 185 | } |
| 186 | |
| 187 | fn get_duration(&self) -> u64 { 0 } |
| 188 | } |
| 189 | |
| 190 | impl<'a> NAOptionHandler for VMDDemuxer<'a> { |
| 191 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } |
| 192 | fn set_options(&mut self, _options: &[NAOption]) { } |
| 193 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } |
| 194 | } |
| 195 | |
| 196 | impl<'a> VMDDemuxer<'a> { |
| 197 | fn new(io: &'a mut ByteReader<'a>) -> Self { |
| 198 | Self { |
| 199 | src: io, |
| 200 | vid_id: 0, |
| 201 | aud_id: 0, |
| 202 | fno: 0, |
| 203 | is_indeo: false, |
| 204 | is_lhaud: false, |
| 205 | frames: Vec::new(), |
| 206 | } |
| 207 | } |
| 208 | } |
| 209 | |
| 210 | pub struct VMDDemuxerCreator { } |
| 211 | |
| 212 | impl DemuxerCreator for VMDDemuxerCreator { |
| 213 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> { |
| 214 | Box::new(VMDDemuxer::new(br)) |
| 215 | } |
| 216 | fn get_name(&self) -> &'static str { "vmd" } |
| 217 | } |
| 218 | |
| 219 | #[cfg(test)] |
| 220 | mod test { |
| 221 | use super::*; |
| 222 | use std::fs::File; |
| 223 | |
| 224 | #[test] |
| 225 | fn test_vmd_demux() { |
| 226 | let mut file = File::open("assets/Game/128.vmd").unwrap(); |
| 227 | //let mut file = File::open("assets/Game/1491.VMD").unwrap(); |
| 228 | let mut fr = FileReader::new_read(&mut file); |
| 229 | let mut br = ByteReader::new(&mut fr); |
| 230 | let mut dmx = VMDDemuxer::new(&mut br); |
| 231 | let mut sm = StreamManager::new(); |
| 232 | let mut si = SeekIndex::new(); |
| 233 | dmx.open(&mut sm, &mut si).unwrap(); |
| 234 | loop { |
| 235 | let pktres = dmx.get_frame(&mut sm); |
| 236 | if let Err(e) = pktres { |
| 237 | if (e as i32) == (DemuxerError::EOF as i32) { break; } |
| 238 | panic!("error"); |
| 239 | } |
| 240 | let pkt = pktres.unwrap(); |
| 241 | println!("Got {}", pkt); |
| 242 | } |
| 243 | } |
| 244 | } |