X-Git-Url: https://git.nihav.org/?a=blobdiff_plain;f=src%2Fdemuxers%2Fgdv.rs;h=8f54bca750d55779614926074b962f70ca6ce6fb;hb=HEAD;hp=743c84193d2a6fb74ad0008b23488b4c4209948b;hpb=f365013822ceffbdab8c3d155494a69e1596ebbb;p=nihav.git diff --git a/src/demuxers/gdv.rs b/src/demuxers/gdv.rs deleted file mode 100644 index 743c841..0000000 --- a/src/demuxers/gdv.rs +++ /dev/null @@ -1,196 +0,0 @@ -use super::*; -use io::byteio::*; -use frame::*; -use 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, - a_id: Option, - v_id: Option, -} - -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 = 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 { - 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 { - 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 { - let str = strmgr.get_stream(self.v_id.unwrap()).unwrap(); - let mut 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 + '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); - } - } -}