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use nihav_core::frame::*;
use nihav_core::demuxers::*;
#[allow(dead_code)]
struct HighlanderFMVDemuxer<'a> {
src: &'a mut ByteReader<'a>,
vpts: u64,
apts: u64,
}
impl<'a> DemuxCore<'a> for HighlanderFMVDemuxer<'a> {
#[allow(unused_variables)]
fn open(&mut self, strmgr: &mut StreamManager, _seek_index: &mut SeekIndex) -> DemuxerResult<()> {
let src = &mut self.src;
let tag = src.read_tag()?;
validate!(&tag == b"FMV*");
let size = src.read_u32le()?;
validate!(size == 0);
let vhdr = NAVideoInfo::new(320, 240, false, PAL8_FORMAT);
let vci = NACodecTypeInfo::Video(vhdr);
let vinfo = NACodecInfo::new("hl-fmv-video", vci, None);
if strmgr.add_stream(NAStream::new(StreamType::Video, 0, vinfo, 2, 25, 0)).is_none() {
return Err(DemuxerError::MemoryError);
}
let ahdr = NAAudioInfo::new(22050, 1, SND_U8_FORMAT, 1);
let ainfo = NACodecInfo::new("pcm", NACodecTypeInfo::Audio(ahdr), None);
if strmgr.add_stream(NAStream::new(StreamType::Audio, 1, ainfo, 1, 22050, 0)).is_none() {
return Err(DemuxerError::MemoryError);
}
self.apts = 0;
self.vpts = 0;
Ok(())
}
fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> {
let tag = self.src.read_tag()?;
let size = self.src.read_u32le()? as usize;
match &tag {
b"AUD1" => {
let stream = strmgr.get_stream_by_id(1).unwrap();
let (tb_num, tb_den) = stream.get_timebase();
let ts = NATimeInfo::new(Some(self.apts), None, None, tb_num, tb_den);
self.apts += size as u64;
self.src.read_packet(stream, ts, true, size)
},
b"VID3" => {
let stream = strmgr.get_stream_by_id(0).unwrap();
let (tb_num, tb_den) = stream.get_timebase();
let ts = NATimeInfo::new(Some(self.vpts), None, None, tb_num, tb_den);
self.vpts += 1;
self.src.read_packet(stream, ts, true, size)
},
b"END*" => Err(DemuxerError::EOF),
_ => Err(DemuxerError::InvalidData),
}
}
fn seek(&mut self, _time: NATimePoint, _seek_index: &SeekIndex) -> DemuxerResult<()> {
Err(DemuxerError::NotPossible)
}
fn get_duration(&self) -> u64 { 0 }
}
impl<'a> NAOptionHandler for HighlanderFMVDemuxer<'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> HighlanderFMVDemuxer<'a> {
fn new(io: &'a mut ByteReader<'a>) -> Self {
HighlanderFMVDemuxer {
src: io,
vpts: 0,
apts: 0,
}
}
}
pub struct HighlanderFMVDemuxerCreator { }
impl DemuxerCreator for HighlanderFMVDemuxerCreator {
fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<dyn DemuxCore<'a> + 'a> {
Box::new(HighlanderFMVDemuxer::new(br))
}
fn get_name(&self) -> &'static str { "hl-fmv" }
}
#[cfg(test)]
mod test {
use super::*;
use std::fs::File;
// sample extracted from Highlander: The Last of the MacLeods unpublished game
#[test]
fn test_highlander_fmv_demux() {
let mut file = File::open("assets/Game/0010.fmv").unwrap();
let mut fr = FileReader::new_read(&mut file);
let mut br = ByteReader::new(&mut fr);
let mut dmx = HighlanderFMVDemuxer::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);
}
}
}
|
