| 1 | use nihav_core::frame::*; |
| 2 | use nihav_core::demuxers::*; |
| 3 | use std::io::SeekFrom; |
| 4 | |
| 5 | const AUDIO_EXTRADATA_LEN: usize = 3124; |
| 6 | |
| 7 | struct VXDemuxer<'a> { |
| 8 | src: &'a mut ByteReader<'a>, |
| 9 | vid_id: usize, |
| 10 | aud_id: usize, |
| 11 | video_pos: u64, |
| 12 | num_vid: usize, |
| 13 | vno: u64, |
| 14 | num_vfrm: u64, |
| 15 | num_aud: usize, |
| 16 | ano: u64, |
| 17 | num_afrm: u64, |
| 18 | } |
| 19 | |
| 20 | impl<'a> DemuxCore<'a> for VXDemuxer<'a> { |
| 21 | #[allow(unused_variables)] |
| 22 | fn open(&mut self, strmgr: &mut StreamManager, _seek_index: &mut SeekIndex) -> DemuxerResult<()> { |
| 23 | let src = &mut self.src; |
| 24 | |
| 25 | let mut magic = [0u8; 4]; |
| 26 | src.read_buf(&mut magic)?; |
| 27 | validate!(&magic == b"VXDS"); |
| 28 | let nframes = src.read_u32le()? as usize; |
| 29 | let width = src.read_u32le()? as usize; |
| 30 | let height = src.read_u32le()? as usize; |
| 31 | let _unk = src.read_u32le()? as usize; |
| 32 | let fps = src.read_u32le()?; |
| 33 | validate!(fps > 0 && fps < 256); |
| 34 | let srate = src.read_u32le()?; |
| 35 | let num_audio_tracks = src.read_u32le()? as usize; |
| 36 | let _max_frame_size = src.read_u32le()? as usize; |
| 37 | let audio_off = src.read_u32le()? as u64; |
| 38 | validate!(audio_off == 0 || audio_off >= 0x30); |
| 39 | let vinfo_off = src.read_u32le()? as u64; |
| 40 | validate!(vinfo_off == 0 || vinfo_off >= 0x30); |
| 41 | let num_vstreams = src.read_u32le()? as usize; |
| 42 | if num_vstreams != 1 || num_audio_tracks > 1 { |
| 43 | return Err(DemuxerError::NotImplemented); |
| 44 | } |
| 45 | |
| 46 | let vhdr = NAVideoInfo::new(width, height, false, YUV420_FORMAT); |
| 47 | let vci = NACodecTypeInfo::Video(vhdr); |
| 48 | let edata = [fps as u8].to_vec(); |
| 49 | let vinfo = NACodecInfo::new("vxvideo", vci, Some(edata)); |
| 50 | self.vid_id = strmgr.add_stream(NAStream::new(StreamType::Video, 0, vinfo, 1, fps, nframes as u64)).unwrap(); |
| 51 | |
| 52 | if num_audio_tracks != 0 { |
| 53 | validate!(audio_off + ((num_audio_tracks * AUDIO_EXTRADATA_LEN) as u64) == vinfo_off); |
| 54 | src.seek(SeekFrom::Start(audio_off))?; |
| 55 | let mut edata = vec![0u8; AUDIO_EXTRADATA_LEN]; |
| 56 | src.read_buf(edata.as_mut_slice())?; |
| 57 | let ahdr = NAAudioInfo::new(srate, 1, SND_S16P_FORMAT, 1); |
| 58 | let ainfo = NACodecInfo::new("vxaudio", NACodecTypeInfo::Audio(ahdr), Some(edata)); |
| 59 | self.aud_id = strmgr.add_stream(NAStream::new(StreamType::Audio, 1, ainfo, 1, srate, 0)).unwrap(); |
| 60 | self.num_afrm = nframes as u64; |
| 61 | self.ano = 0; |
| 62 | self.num_aud = num_audio_tracks; |
| 63 | } |
| 64 | |
| 65 | if num_vstreams > 0 { |
| 66 | src.seek(SeekFrom::Start(vinfo_off))?; |
| 67 | for _ in 0..num_vstreams { |
| 68 | let _smth = src.read_u32le()?; |
| 69 | let offset = src.read_u32le()? as u64; |
| 70 | self.video_pos = offset; |
| 71 | } |
| 72 | } |
| 73 | |
| 74 | self.num_vid = num_vstreams; |
| 75 | self.vno = 0; |
| 76 | self.num_vfrm = nframes as u64; |
| 77 | Ok(()) |
| 78 | } |
| 79 | |
| 80 | fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> { |
| 81 | if self.vno >= self.num_vfrm { return Err(DemuxerError::EOF); } |
| 82 | self.src.seek(SeekFrom::Start(self.video_pos))?; |
| 83 | let stream = strmgr.get_stream(self.vid_id); |
| 84 | if stream.is_none() { return Err(DemuxerError::InvalidData); } |
| 85 | let stream = stream.unwrap(); |
| 86 | let (tn, td) = stream.get_timebase(); |
| 87 | let ts = NATimeInfo::new(Some(self.vno), None, None, tn, td); |
| 88 | let size = self.src.read_u16le()? as usize; |
| 89 | validate!(size > 2); |
| 90 | let _num_achunks = self.src.read_u16le()?; |
| 91 | let fsize = size - 2; |
| 92 | let pkt = self.src.read_packet(stream, ts, false, fsize)?; |
| 93 | self.video_pos = self.src.tell(); |
| 94 | self.vno += 1; |
| 95 | Ok(pkt) |
| 96 | } |
| 97 | |
| 98 | fn seek(&mut self, _time: NATimePoint, _seek_index: &SeekIndex) -> DemuxerResult<()> { |
| 99 | Err(DemuxerError::NotPossible) |
| 100 | } |
| 101 | |
| 102 | fn get_duration(&self) -> u64 { 0 } |
| 103 | } |
| 104 | |
| 105 | impl<'a> NAOptionHandler for VXDemuxer<'a> { |
| 106 | fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } |
| 107 | fn set_options(&mut self, _options: &[NAOption]) { } |
| 108 | fn query_option_value(&self, _name: &str) -> Option<NAValue> { None } |
| 109 | } |
| 110 | |
| 111 | impl<'a> VXDemuxer<'a> { |
| 112 | fn new(io: &'a mut ByteReader<'a>) -> Self { |
| 113 | Self { |
| 114 | vid_id: 0, |
| 115 | aud_id: 0, |
| 116 | video_pos: 0, |
| 117 | num_vid: 0, |
| 118 | num_aud: 0, |
| 119 | vno: 0, |
| 120 | ano: 0, |
| 121 | num_vfrm: 0, |
| 122 | num_afrm: 0, |
| 123 | src: io, |
| 124 | } |
| 125 | } |
| 126 | } |
| 127 | |
| 128 | pub struct VXDemuxerCreator { } |
| 129 | |
| 130 | impl DemuxerCreator for VXDemuxerCreator { |
| 131 | fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> { |
| 132 | Box::new(VXDemuxer::new(br)) |
| 133 | } |
| 134 | fn get_name(&self) -> &'static str { "vx" } |
| 135 | } |
| 136 | |
| 137 | #[cfg(test)] |
| 138 | mod test { |
| 139 | use super::*; |
| 140 | use std::fs::File; |
| 141 | |
| 142 | #[test] |
| 143 | fn test_vx_demux() { |
| 144 | let mut file = File::open("assets/Game/bioware.vx").unwrap(); |
| 145 | //let mut file = File::open("assets/Game/BS_01_Intro.vx").unwrap(); |
| 146 | //let mut file = File::open("assets/Game/sega.vx").unwrap(); |
| 147 | let mut fr = FileReader::new_read(&mut file); |
| 148 | let mut br = ByteReader::new(&mut fr); |
| 149 | let mut dmx = VXDemuxer::new(&mut br); |
| 150 | let mut sm = StreamManager::new(); |
| 151 | let mut si = SeekIndex::new(); |
| 152 | dmx.open(&mut sm, &mut si).unwrap(); |
| 153 | loop { |
| 154 | let pktres = dmx.get_frame(&mut sm); |
| 155 | if let Err(e) = pktres { |
| 156 | if (e as i32) == (DemuxerError::EOF as i32) { break; } |
| 157 | panic!("error"); |
| 158 | } |
| 159 | let pkt = pktres.unwrap(); |
| 160 | println!("Got {}", pkt); |
| 161 | } |
| 162 | } |
| 163 | } |