X-Git-Url: https://git.nihav.org/?p=nihav.git;a=blobdiff_plain;f=nihav-game%2Fsrc%2Fdemuxers%2Fcnm.rs;fp=nihav-game%2Fsrc%2Fdemuxers%2Fcnm.rs;h=1c25ec41627ab9dfa52843087c5457cf2bcc66d1;hp=0000000000000000000000000000000000000000;hb=1991b7da1b628e3a5dbef45431e47e890491ceb5;hpb=b4ab327f6b96ea641c281a8f72d2b06fc5824a6e diff --git a/nihav-game/src/demuxers/cnm.rs b/nihav-game/src/demuxers/cnm.rs new file mode 100644 index 0000000..1c25ec4 --- /dev/null +++ b/nihav-game/src/demuxers/cnm.rs @@ -0,0 +1,217 @@ +use nihav_core::frame::*; +use nihav_core::demuxers::*; + +struct ArxelCinemaDemuxer<'a> { + src: &'a mut ByteReader<'a>, + cur_frame: usize, + astreams: usize, + offsets: Vec, + vpts: u64, + tb_num: u32, + tb_den: u32, +} + +impl<'a> DemuxCore<'a> for ArxelCinemaDemuxer<'a> { + #[allow(unused_variables)] + fn open(&mut self, strmgr: &mut StreamManager, _seek_index: &mut SeekIndex) -> DemuxerResult<()> { + let src = &mut self.src; + + let magic = src.read_tag()?; + validate!(&magic == b"CNM "); + let magic = src.read_tag()?; + validate!(&magic == b"UNR\x00"); + let _duration = src.read_u32le()?; + let tb_den = src.read_u32le()?; + src.read_byte()?; + let width = src.read_u32le()? as usize; + let height = src.read_u32le()? as usize; + validate!(width != 0 && height != 0); + src.read_u16le()?; + self.astreams = src.read_byte()? as usize; + validate!(self.astreams < 4); + if self.astreams > 1 { + return Err(DemuxerError::NotImplemented); + } + let nframes = src.read_u32le()? as usize; + src.read_u32le()?; //nframes again? + let tab_size = src.read_u32le()? as usize; + validate!(tab_size == nframes * 8); + src.read_skip(0x98)?; + + let vhdr = NAVideoInfo::new(width, height, true, RGB24_FORMAT); + let vci = NACodecTypeInfo::Video(vhdr); + let vinfo = NACodecInfo::new("arxel-video", vci, None); + if strmgr.add_stream(NAStream::new(StreamType::Video, 0, vinfo, 100, tb_den, nframes as u64)).is_none() { + return Err(DemuxerError::MemoryError); + } + if let Some(stream) = strmgr.get_stream_by_id(0) { + let (tb_num, tb_den) = stream.get_timebase(); + self.tb_num = tb_num; + self.tb_den = tb_den; + } + + for trk in 0..(self.astreams as u32) { + let channels = src.read_byte()? + 1; + let abits = src.read_byte()?; + let arate = src.read_u32le()?; + src.read_skip(10)?; + validate!(channels > 0); + validate!(abits >= 8); + validate!(arate > 0); + + let ahdr = NAAudioInfo::new(arate, channels, if abits > 8 { SND_S16_FORMAT } else { SND_U8_FORMAT }, 2); + let ainfo = NACodecInfo::new("pcm", NACodecTypeInfo::Audio(ahdr), None); + if strmgr.add_stream(NAStream::new(StreamType::Audio, 1 + trk, ainfo, 1, arate, 0)).is_none() { + return Err(DemuxerError::MemoryError); + } + } + + let tab_size = tab_size / 4; + self.offsets = Vec::with_capacity(tab_size); + for _ in 0..tab_size { + let offset = src.read_u32le()?; + self.offsets.push(offset); + } + self.cur_frame = 0; + self.vpts = 0; + Ok(()) + } + + #[allow(unused_variables)] + fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult { + loop { + if self.cur_frame >= self.offsets.len() { return Err(DemuxerError::EOF); } + let pos = u64::from(self.offsets[self.cur_frame]); + let stream_id = (self.cur_frame % (self.astreams.max(1) + 1)) as u32; + self.cur_frame += 1; + if pos == 0 { + continue; + } + + self.src.seek(SeekFrom::Start(pos))?; + let ftype = self.src.read_byte()?; + match ftype { + 0x41 | 0x42 | 0x5A => { + let size = self.src.read_u32le()? as usize; + if size == 0 { + continue; + } + if let Some(stream) = strmgr.get_stream_by_id(stream_id) { + let ts = stream.make_ts(None, None, None); + return self.src.read_packet(stream, ts, true, size); + } else { + self.src.read_skip(size)?; + } + }, + 0x53 => { + let size = self.src.peek_u32le()? as usize; + if let Some(stream) = strmgr.get_stream_by_id(0) { + let ts = stream.make_ts(Some(self.vpts), None, None); + self.vpts += 1; + return self.src.read_packet(stream, ts, true, size + 0x2F); + } else { + return Err(DemuxerError::MemoryError); + } + }, + _ => continue, + }; + } + } + + fn seek(&mut self, time: NATimePoint, _seek_index: &SeekIndex) -> DemuxerResult<()> { + match time { + NATimePoint::PTS(pts) => self.seek_to_frame(pts), + NATimePoint::Milliseconds(ms) => { + if self.tb_num == 0 || self.tb_den == 0 { + return Err(DemuxerError::NotPossible); + } + let pts = NATimeInfo::time_to_ts(ms, 1000, self.tb_num, self.tb_den); + self.seek_to_frame(pts) + }, + _ => Err(DemuxerError::NotPossible) + } + } + fn get_duration(&self) -> u64 { 0 } +} +impl<'a> NAOptionHandler for ArxelCinemaDemuxer<'a> { + fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] } + fn set_options(&mut self, _options: &[NAOption]) { } + fn query_option_value(&self, _name: &str) -> Option { None } +} +impl<'a> ArxelCinemaDemuxer<'a> { + fn new(io: &'a mut ByteReader<'a>) -> Self { + ArxelCinemaDemuxer { + src: io, + cur_frame: 0, + astreams: 0, + offsets: Vec::new(), + vpts: 0, + tb_num: 0, + tb_den: 0, + } + } + fn seek_to_frame(&mut self, pts: u64) -> DemuxerResult<()> { + let nframe = (pts as usize) * (1 + self.astreams.max(1)); + if nframe < self.offsets.len() { + self.cur_frame = nframe; + Ok(()) + } else { + Err(DemuxerError::SeekError) + } + } +} + +pub struct CNMDemuxerCreator { } + +impl DemuxerCreator for CNMDemuxerCreator { + fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box + 'a> { + Box::new(ArxelCinemaDemuxer::new(br)) + } + fn get_name(&self) -> &'static str { "arxel-cnm" } +} + +#[cfg(test)] +mod test { + use super::*; + use std::fs::File; + + // samples from the Ring game + #[test] + fn test_cnm_demux() { + let mut file = File::open("assets/Game/logo.cnm").unwrap(); + let mut fr = FileReader::new_read(&mut file); + let mut br = ByteReader::new(&mut fr); + let mut dmx = ArxelCinemaDemuxer::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_cnm_noaud_demux() { + let mut file = File::open("assets/Game/tr_as_ro_d.cnm").unwrap(); + let mut fr = FileReader::new_read(&mut file); + let mut br = ByteReader::new(&mut fr); + let mut dmx = ArxelCinemaDemuxer::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); + } + } +}