nihav-realmedia/src/codecs/rv30.rs

   1 use nihav_core::formats;
   2 use nihav_core::io::bitreader::*;
   3 use nihav_core::io::intcode::*;
   4 use nihav_core::frame::*;
   5 use nihav_core::codecs::*;
   6 use super::rv3040::*;
   7 use super::rv30dsp::*;
   8
   9 struct RealVideo30BR {
  10     rpr_bits:       u8,
  11     width:          usize,
  12     height:         usize,
  13     widths:         Vec<usize>,
  14     heights:        Vec<usize>,
  15 }
  16
  17 impl RealVideo30BR {
  18     fn new() -> Self {
  19         RealVideo30BR {
  20             rpr_bits:       0,
  21             width:          0,
  22             height:         0,
  23             widths:         Vec::new(),
  24             heights:        Vec::new(),
  25         }
  26     }
  27 }
  28
  29 impl RV34BitstreamDecoder for RealVideo30BR {
  30     fn decode_slice_header(&mut self, br: &mut BitReader, _old_w: usize, _old_h: usize) -> DecoderResult<RV34SliceHeader> {
  31         if br.read(3)? != 0 { return Err(DecoderError::InvalidData); }
  32         let ft_idx              = br.read(2)?;
  33         let ftype = match ft_idx {
  34                 0|1 => FrameType::I,
  35                 2   => FrameType::P,
  36                 _   => FrameType::B,
  37             };
  38         if br.read(1)? != 0 { return Err(DecoderError::InvalidData); }
  39         let q                   = br.read(5)? as u8;
  40         let deblock             = !br.read_bool()?;
  41         let pts                 = br.read(13)? as u16;
  42         let rpr                 = br.read(self.rpr_bits)? as usize;
  43         let (w, h) = if rpr != 0 {
  44                 validate!(rpr < self.widths.len());
  45                 (self.widths[rpr], self.heights[rpr])
  46             } else {
  47                 (self.width, self.height)
  48             };
  49         let start               = br.read(get_slice_start_offset_bits(w, h))? as usize;
  50                                   br.skip(1)?;
  51
  52         Ok(RV34SliceHeader{ ftype: ftype, quant: q, deblock: deblock, pts: pts, width: w, height: h, start: start, end: 0, set_idx: 0 })
  53     }
  54     fn decode_intra_pred(&mut self, br: &mut BitReader, types: &mut [i8], mut pos: usize, tstride: usize, _has_top: bool) -> DecoderResult<()> {
  55         for _ in 0..4 {
  56             for x in 0..2 {
  57                 let code = br.read_code(UintCodeType::Gamma)? as usize;
  58                 validate!(code < 81);
  59                 for k in 0..2 {
  60                     let new  = RV30_ITYPE_MAP[code * 2 + k] as usize;
  61                     let top  = (types[pos + x * 2 + k - tstride] + 1) as usize;
  62                     let left = (types[pos + x * 2 + k - 1] + 1) as usize;
  63                     types[pos + x * 2 + k] = RV30_ITYPE[top * 90 + left * 9 + new];
  64                     validate!(types[pos + x * 2 + k] != 9);
  65                 }
  66             }
  67             pos += tstride;
  68         }
  69         Ok(())
  70     }
  71     fn decode_inter_mb_hdr(&mut self, br: &mut BitReader, ftype: FrameType, _mbtype: MBType) -> DecoderResult<MBInfo> {
  72         let mut code = br.read_code(UintCodeType::Gamma)? as usize;
  73         let mut dq = false;
  74         validate!(code < 11);
  75         if code > 5 {
  76             code -= 6;
  77             dq = true;
  78         }
  79         let idx = if ftype == FrameType::P { 0 } else { 1 };
  80         Ok(MBInfo { mbtype: RV30_MB_TYPES[idx][code], skip_run: 0, dquant: dq })
  81     }
  82     fn predict_b_mv(&self, sstate: &SState, mvi: &MVInfo, mbtype: MBType, mvs: &[MV], _mbinfo: &Vec<RV34MBInfo>) -> (MV, MV) {
  83         let mb_x = sstate.mb_x;
  84         let mb_y = sstate.mb_y;
  85         let mv_f;
  86         let mv_b;
  87         match mbtype {
  88             MBType::MBForward | MBType::MBBackward => {
  89                     let mv_pred = mvi.pred_mb_mv(mb_x, mb_y, true, sstate.has_top, sstate.has_left, sstate.has_tr, sstate.has_tl);
  90                     mv_f = mv_pred + mvs[0];
  91                     mv_b = mv_f;
  92                 },
  93             _   => {
  94                     mv_f = ZERO_MV;
  95                     mv_b = ZERO_MV;
  96                 },
  97         };
  98         (mv_f, mv_b)
  99     }
 100     fn quant_dc(&self, _is_intra: bool, q: u8) -> u8 { RV30_QUANT_DC[q as usize] }
 101 }
 102
 103 struct RealVideo30Decoder {
 104     bd:         RealVideo30BR,
 105     info:       NACodecInfoRef,
 106     dec:        RV34Decoder,
 107 }
 108
 109 impl RealVideo30Decoder {
 110     fn new() -> Self {
 111         RealVideo30Decoder{
 112             bd:         RealVideo30BR::new(),
 113             info:       NACodecInfoRef::default(),
 114             dec:        RV34Decoder::new(true, Box::new(RV30DSP::new())),
 115         }
 116     }
 117 }
 118
 119 impl NADecoder for RealVideo30Decoder {
 120     fn init(&mut self, info: NACodecInfoRef) -> DecoderResult<()> {
 121         if let NACodecTypeInfo::Video(vinfo) = info.get_properties() {
 122             let fmt = formats::YUV420_FORMAT;
 123             let myinfo = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, fmt));
 124             self.info = NACodecInfo::new_ref(info.get_name(), myinfo, info.get_extradata()).into_ref();
 125
 126             let edata = info.get_extradata().unwrap();
 127             let src: &[u8] = &edata;
 128
 129             if src.len() < 2 { return Err(DecoderError::InvalidData); }
 130             let num_rpr     = (src[1] & 7) as usize;
 131             if src.len() < num_rpr * 2 + 8 { return Err(DecoderError::ShortData); }
 132             self.bd.rpr_bits  = ((num_rpr >> 1) + 1) as u8;
 133             if self.bd.rpr_bits > 3 { self.bd.rpr_bits = 3; }
 134             for i in 0..num_rpr+1 {
 135                 self.bd.widths.push ((src[6 + i * 2] as usize) << 2);
 136                 self.bd.heights.push((src[7 + i * 2] as usize) << 2);
 137             }
 138
 139             self.bd.width  = vinfo.get_width();
 140             self.bd.height = vinfo.get_height();
 141             Ok(())
 142         } else {
 143 println!("???");
 144             Err(DecoderError::InvalidData)
 145         }
 146     }
 147     fn decode(&mut self, pkt: &NAPacket) -> DecoderResult<NAFrameRef> {
 148         let src = pkt.get_buffer();
 149
 150         let (bufinfo, ftype, pts) = self.dec.parse_frame(src.as_slice(), &mut self.bd)?;
 151
 152         let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), bufinfo);
 153         frm.set_keyframe(ftype == FrameType::I);
 154         frm.set_pts(Some(pts));
 155         frm.set_frame_type(ftype);//if ftype == FrameType::B { FrameType::Skip } else { ftype } );
 156         Ok(Rc::new(RefCell::new(frm)))
 157     }
 158 }
 159
 160 pub fn get_decoder() -> Box<NADecoder> {
 161     Box::new(RealVideo30Decoder::new())
 162 }
 163
 164 #[cfg(test)]
 165 mod test {
 166     use nihav_core::codecs::RegisteredDecoders;
 167     use nihav_core::demuxers::RegisteredDemuxers;
 168     use nihav_core::test::dec_video::*;
 169     use crate::codecs::realmedia_register_all_codecs;
 170     use crate::demuxers::realmedia_register_all_demuxers;
 171     #[test]
 172     fn test_rv30() {
 173         let mut dmx_reg = RegisteredDemuxers::new();
 174         realmedia_register_all_demuxers(&mut dmx_reg);
 175         let mut dec_reg = RegisteredDecoders::new();
 176         realmedia_register_all_codecs(&mut dec_reg);
 177
 178 //         test_file_decoding("realmedia", "assets/RV/rv30_chroma_drift.rm", Some(1000), true, false, /*None*/Some("rv30"));
 179         test_file_decoding("realmedia", "assets/RV/rv30_weighted_mc.rm", Some(400), true, false, None/*Some("rv30")*/, &dmx_reg, &dec_reg);
 180 //         test_file_decoding("realmedia", "assets/RV/simpsons-clip.rm", Some(1337)/*Some(6666)*/, true, false, /*None*/Some("rv30"));
 181 //panic!("end");
 182     }
 183 }
 184
 185 const RV30_QUANT_DC: [u8; 32] = [
 186      0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
 187     16, 17, 18, 19, 20, 21, 22, 22, 22, 23, 23, 23, 24, 24, 25, 25
 188 ];
 189
 190 const RV30_MB_TYPES: [[MBType; 6]; 2] = [
 191     [ MBType::MBSkip, MBType::MBP16x16, MBType::MBP8x8,    MBType::Invalid,    MBType::MBIntra, MBType::MBIntra16 ],
 192     [ MBType::MBSkip, MBType::MBDirect, MBType::MBForward, MBType::MBBackward, MBType::MBIntra, MBType::MBIntra16 ],
 193 ];
 194
 195 const RV30_ITYPE_MAP: [i8; 9*9*2] = [
 196     0, 0, 0, 1, 1, 0, 1, 1, 0, 2, 2, 0, 0, 3, 3, 0, 1, 2,
 197     2, 1, 0, 4, 4, 0, 3, 1, 1, 3, 0, 5, 5, 0, 2, 2, 1, 4,
 198     4, 1, 0, 6, 3, 2, 1, 5, 2, 3, 5, 1, 6, 0, 0, 7, 4, 2,
 199     2, 4, 3, 3, 6, 1, 1, 6, 7, 0, 0, 8, 5, 2, 4, 3, 2, 5,
 200     3, 4, 1, 7, 4, 4, 7, 1, 8, 0, 6, 2, 3, 5, 5, 3, 2, 6,
 201     1, 8, 2, 7, 7, 2, 8, 1, 5, 4, 4, 5, 3, 6, 6, 3, 8, 2,
 202     4, 6, 5, 5, 6, 4, 2, 8, 7, 3, 3, 7, 6, 5, 5, 6, 7, 4,
 203     4, 7, 8, 3, 3, 8, 7, 5, 8, 4, 5, 7, 4, 8, 6, 6, 7, 6,
 204     5, 8, 8, 5, 6, 7, 8, 6, 7, 7, 6, 8, 8, 7, 7, 8, 8, 8,
 205 ];
 206
 207 const RV30_ITYPE: [i8; 10*10*9] = [
 208     0, 9, 9, 9, 9, 9, 9, 9, 9,
 209     0, 2, 9, 9, 9, 9, 9, 9, 9,
 210     9, 9, 9, 9, 9, 9, 9, 9, 9,
 211     2, 0, 9, 9, 9, 9, 9, 9, 9,
 212     9, 9, 9, 9, 9, 9, 9, 9, 9,
 213     9, 9, 9, 9, 9, 9, 9, 9, 9,
 214     9, 9, 9, 9, 9, 9, 9, 9, 9,
 215     9, 9, 9, 9, 9, 9, 9, 9, 9,
 216     9, 9, 9, 9, 9, 9, 9, 9, 9,
 217     9, 9, 9, 9, 9, 9, 9, 9, 9,
 218
 219     0, 1, 9, 9, 9, 9, 9, 9, 9,
 220     0, 2, 1, 6, 4, 8, 5, 7, 3,
 221     1, 0, 2, 6, 5, 4, 3, 8, 7,
 222     2, 8, 0, 1, 7, 4, 3, 6, 5,
 223     2, 0, 1, 3, 8, 5, 4, 7, 6,
 224     2, 0, 1, 4, 6, 7, 8, 3, 5,
 225     0, 1, 5, 2, 6, 3, 8, 4, 7,
 226     0, 1, 6, 2, 4, 7, 5, 8, 3,
 227     2, 7, 0, 1, 4, 8, 6, 3, 5,
 228     2, 8, 0, 1, 7, 3, 4, 5, 6,
 229
 230     1, 0, 9, 9, 9, 9, 9, 9, 9,
 231     1, 2, 5, 6, 3, 0, 4, 8, 7,
 232     1, 6, 2, 5, 3, 0, 4, 8, 7,
 233     2, 1, 7, 6, 8, 3, 5, 0, 4,
 234     1, 2, 5, 3, 6, 8, 4, 7, 0,
 235     1, 6, 2, 0, 4, 5, 8, 7, 3,
 236     1, 5, 2, 6, 3, 8, 4, 0, 7,
 237     1, 6, 0, 2, 4, 5, 7, 3, 8,
 238     2, 1, 7, 6, 0, 8, 5, 4, 3,
 239     1, 2, 7, 8, 3, 4, 5, 6, 0,
 240
 241     9, 9, 9, 9, 9, 9, 9, 9, 9,
 242     0, 2, 1, 8, 7, 6, 5, 4, 3,
 243     1, 2, 0, 6, 5, 7, 4, 8, 3,
 244     2, 8, 7, 1, 0, 6, 4, 3, 5,
 245     2, 0, 8, 1, 3, 7, 5, 4, 6,
 246     2, 0, 4, 1, 7, 8, 6, 3, 5,
 247     2, 0, 1, 5, 8, 4, 6, 7, 3,
 248     2, 0, 6, 1, 4, 7, 8, 5, 3,
 249     2, 7, 8, 1, 0, 5, 4, 6, 3,
 250     2, 8, 7, 1, 0, 4, 3, 6, 5,
 251
 252     9, 9, 9, 9, 9, 9, 9, 9, 9,
 253     0, 2, 1, 3, 5, 8, 6, 4, 7,
 254     1, 0, 2, 5, 3, 6, 4, 8, 7,
 255     2, 8, 1, 0, 3, 5, 7, 6, 4,
 256     3, 2, 5, 8, 1, 4, 6, 7, 0,
 257     4, 2, 0, 6, 1, 5, 8, 3, 7,
 258     5, 3, 1, 2, 8, 6, 4, 0, 7,
 259     1, 6, 0, 2, 4, 5, 8, 3, 7,
 260     2, 7, 0, 1, 5, 4, 8, 6, 3,
 261     2, 8, 3, 5, 1, 0, 7, 6, 4,
 262
 263     9, 9, 9, 9, 9, 9, 9, 9, 9,
 264     2, 0, 6, 1, 4, 7, 5, 8, 3,
 265     1, 6, 2, 0, 4, 5, 3, 7, 8,
 266     2, 8, 7, 6, 4, 0, 1, 5, 3,
 267     4, 2, 1, 0, 6, 8, 3, 5, 7,
 268     4, 2, 6, 0, 1, 5, 7, 8, 3,
 269     1, 2, 5, 0, 6, 3, 4, 7, 8,
 270     6, 4, 0, 1, 2, 7, 5, 3, 8,
 271     2, 7, 4, 6, 0, 1, 8, 5, 3,
 272     2, 8, 7, 4, 6, 1, 3, 5, 0,
 273
 274     9, 9, 9, 9, 9, 9, 9, 9, 9,
 275     5, 1, 2, 3, 6, 8, 0, 4, 7,
 276     1, 5, 6, 3, 2, 0, 4, 8, 7,
 277     2, 1, 5, 3, 6, 8, 7, 4, 0,
 278     5, 3, 1, 2, 6, 8, 4, 7, 0,
 279     1, 6, 2, 4, 5, 8, 0, 3, 7,
 280     5, 1, 3, 6, 2, 0, 8, 4, 7,
 281     1, 6, 5, 2, 0, 4, 3, 7, 8,
 282     2, 7, 1, 6, 5, 0, 8, 3, 4,
 283     2, 5, 1, 3, 6, 8, 4, 0, 7,
 284
 285     9, 9, 9, 9, 9, 9, 9, 9, 9,
 286     1, 6, 2, 0, 5, 4, 3, 7, 8,
 287     1, 6, 5, 4, 2, 3, 0, 7, 8,
 288     2, 1, 6, 7, 4, 8, 5, 3, 0,
 289     2, 1, 6, 5, 8, 4, 3, 0, 7,
 290     6, 4, 1, 2, 0, 5, 7, 8, 3,
 291     1, 6, 5, 2, 3, 0, 4, 8, 7,
 292     6, 1, 4, 0, 2, 7, 5, 3, 8,
 293     2, 7, 4, 6, 1, 5, 0, 8, 3,
 294     2, 1, 6, 8, 4, 7, 3, 5, 0,
 295
 296     9, 9, 9, 9, 9, 9, 9, 9, 9,
 297     2, 0, 4, 7, 6, 1, 8, 5, 3,
 298     6, 1, 2, 0, 4, 7, 5, 8, 3,
 299     2, 7, 8, 0, 1, 6, 4, 3, 5,
 300     2, 4, 0, 8, 3, 1, 7, 6, 5,
 301     4, 2, 7, 0, 6, 1, 8, 5, 3,
 302     2, 1, 0, 8, 5, 6, 7, 4, 3,
 303     2, 6, 4, 1, 7, 0, 5, 8, 3,
 304     2, 7, 4, 0, 8, 6, 1, 5, 3,
 305     2, 8, 7, 4, 1, 0, 3, 6, 5,
 306
 307     9, 9, 9, 9, 9, 9, 9, 9, 9,
 308     2, 0, 8, 1, 3, 4, 6, 5, 7,
 309     1, 2, 0, 6, 8, 5, 7, 3, 4,
 310     2, 8, 7, 1, 0, 3, 6, 5, 4,
 311     8, 3, 2, 5, 1, 0, 4, 7, 6,
 312     2, 0, 4, 8, 5, 1, 7, 6, 3,
 313     2, 1, 0, 8, 5, 3, 6, 4, 7,
 314     2, 1, 6, 0, 8, 4, 5, 7, 3,
 315     2, 7, 8, 4, 0, 6, 1, 5, 3,
 316     2, 8, 3, 0, 7, 4, 1, 6, 5,
 317 ];