+++ /dev/null
-use super::*;
-//use io::byteio::*;
-//use frame::*;
-use crate::formats::*;
-//use std::collections::HashMap;
-
-enum GDVState {
- NewFrame,
- AudioRead,
-}
-
-#[allow(dead_code)]
-struct GremlinVideoDemuxer<'a> {
- src: &'a mut ByteReader<'a>,
- frames: u16,
- cur_frame: u16,
- asize: usize,
- apacked: bool,
- state: GDVState,
- pktdta: Vec<u8>,
- a_id: Option<usize>,
- v_id: Option<usize>,
-}
-
-struct GDVFixedSizes {
- id: u16,
- width: u16,
- height: u16,
-}
-const GDV_SIZE_TABLE: &[GDVFixedSizes] = &[
- GDVFixedSizes { id: 0, width: 320, height: 200 },
- GDVFixedSizes { id: 1, width: 640, height: 200 },
- GDVFixedSizes { id: 2, width: 320, height: 167 },
- GDVFixedSizes { id: 3, width: 320, height: 180 },
- GDVFixedSizes { id: 4, width: 320, height: 400 },
- GDVFixedSizes { id: 5, width: 320, height: 170 },
- GDVFixedSizes { id: 6, width: 160, height: 85 },
- GDVFixedSizes { id: 7, width: 160, height: 83 },
- GDVFixedSizes { id: 8, width: 160, height: 90 },
- GDVFixedSizes { id: 9, width: 280, height: 128 },
- GDVFixedSizes { id: 10, width: 320, height: 240 },
- GDVFixedSizes { id: 11, width: 320, height: 201 },
- GDVFixedSizes { id: 16, width: 640, height: 400 },
- GDVFixedSizes { id: 17, width: 640, height: 200 },
- GDVFixedSizes { id: 18, width: 640, height: 180 },
- GDVFixedSizes { id: 19, width: 640, height: 167 },
- GDVFixedSizes { id: 20, width: 640, height: 170 },
- GDVFixedSizes { id: 21, width: 320, height: 240 },
-];
-
-impl<'a> DemuxCore<'a> for GremlinVideoDemuxer<'a> {
- #[allow(unused_variables)]
- fn open(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> {
- let src = &mut self.src;
- let magic = src.read_u32le()?;
- if magic != 0x29111994 { return Err(DemuxerError::InvalidData); }
- let id = src.read_u16le()?;
- let frames = src.read_u16le()?;
- let fps = src.read_u16le()?;
- let aflags = src.read_u16le()?;
- let rate = src.read_u16le()?;
- let depth = src.read_u16le()?;
- let max_fs = src.read_u16le()?;
- src.read_skip(2)?;
- let mut width = src.read_u16le()?;
- let mut height = src.read_u16le()?;
- if (width == 0) && (height == 0) {
- for el in GDV_SIZE_TABLE {
- if el.id == id {
- width = el.width;
- height = el.height;
- break;
- }
- }
- if (width == 0) && (height == 0) { return Err(DemuxerError::InvalidData); }
- }
- if max_fs > 0 {
- let mut edata: Vec<u8> = Vec::with_capacity(768);
- if depth == 1 {
- edata.resize(768, 0);
- src.read_buf(edata.as_mut_slice())?;
- }
- let vhdr = NAVideoInfo::new(width as usize, height as usize, false, PAL8_FORMAT);
- let vci = NACodecTypeInfo::Video(vhdr);
- let vinfo = NACodecInfo::new("gdv-video", vci, if edata.len() == 0 { None } else { Some(edata) });
- self.v_id = strmgr.add_stream(NAStream::new(StreamType::Video, 0, vinfo, 1, fps as u32));
- }
- if (aflags & 1) != 0 {
- let channels = if (aflags & 2) != 0 { 2 } else { 1 };
- let packed = if (aflags & 8) != 0 { 1 } else { 0 };
- let depth = if (aflags & 4) != 0 { 16 } else { 8 };
-
- let ahdr = NAAudioInfo::new(rate as u32, channels as u8, if depth == 16 { SND_S16_FORMAT } else { SND_U8_FORMAT }, 2);
- let ainfo = NACodecInfo::new(if packed != 0 { "gdv-audio" } else { "pcm" },
- NACodecTypeInfo::Audio(ahdr), None);
- self.a_id = strmgr.add_stream(NAStream::new(StreamType::Audio, 1, ainfo, 1, rate as u32));
-
- self.asize = (((rate / fps) * channels * (depth / 8)) >> packed) as usize;
- self.apacked = (aflags & 8) != 0;
- }
- self.frames = frames;
- self.state = GDVState::NewFrame;
- Ok(())
- }
-
- #[allow(unused_variables)]
- fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> {
- if self.cur_frame >= self.frames { return Err(DemuxerError::EOF); }
- match self.state {
- GDVState::NewFrame if self.asize > 0 => { self.read_achunk(strmgr) }
- _ => { self.read_vchunk(strmgr) }
- }
- }
-
- #[allow(unused_variables)]
- fn seek(&mut self, time: u64) -> DemuxerResult<()> {
- Err(DemuxerError::NotImplemented)
- }
-}
-/*impl<'a> Drop for GremlinVideoDemuxer<'a> {
- #[allow(unused_variables)]
- fn drop(&mut self) {
- }
-}*/
-impl<'a> GremlinVideoDemuxer<'a> {
- fn new(io: &'a mut ByteReader<'a>) -> Self {
- GremlinVideoDemuxer {
- cur_frame: 0,
- frames: 0,
- asize: 0,
- apacked: false,
- state: GDVState::NewFrame,
-pktdta: Vec::new(),
- src: io,
- a_id: None,
- v_id: None,
- }
- }
-
- fn read_achunk(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> {
- self.state = GDVState::AudioRead;
- let str = strmgr.get_stream(self.a_id.unwrap()).unwrap();
- let (tb_num, tb_den) = str.get_timebase();
- let ts = NATimeInfo::new(Some(self.cur_frame as u64), None, None, tb_num, tb_den);
- self.src.read_packet(str, ts, true, self.asize)
- }
-
- fn read_vchunk(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> {
- let str = strmgr.get_stream(self.v_id.unwrap()).unwrap();
- let src = &mut self.src;
- let magic = src.read_u16be()?;
- if magic != 0x0513 { return Err(DemuxerError::InvalidData); }
- let size = (src.read_u16le()? as usize) + 4;
- let tmp = src.peek_u32le()?;
- let flags = (tmp & 0xFF) as usize;
- self.state = GDVState::NewFrame;
- self.cur_frame = self.cur_frame + 1;
- let (tb_num, tb_den) = str.get_timebase();
- let ts = NATimeInfo::new(Some((self.cur_frame - 1) as u64), None, None, tb_num, tb_den);
- src.read_packet(str, ts, if (flags & 64) != 0 { true } else { false }, size)
- }
-}
-
-pub struct GDVDemuxerCreator { }
-
-impl DemuxerCreator for GDVDemuxerCreator {
- fn new_demuxer<'a>(&self, br: &'a mut ByteReader<'a>) -> Box<DemuxCore<'a> + 'a> {
- Box::new(GremlinVideoDemuxer::new(br))
- }
- fn get_name(&self) -> &'static str { "gdv" }
-}
-
-#[cfg(test)]
-mod test {
- use super::*;
- use std::fs::File;
-
- #[test]
- fn test_gdv_demux() {
- let mut file = File::open("assets/intro1.gdv").unwrap();
- let mut fr = FileReader::new_read(&mut file);
- let mut br = ByteReader::new(&mut fr);
- let mut dmx = GremlinVideoDemuxer::new(&mut br);
- let mut sm = StreamManager::new();
- dmx.open(&mut sm).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);
- }
- }
-}
projects / nihav.git / blobdiff