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use nihav_core::frame::*;
use nihav_core::demuxers::*;
struct ArxelCinemaDemuxer<'a> {
src: &'a mut ByteReader<'a>,
cur_frame: usize,
astreams: usize,
offsets: Vec<u32>,
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<NAPacket> {
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<NAValue> { 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<dyn DemuxCore<'a> + '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);
}
}
}
|
