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, quant: q, deblock, pts, width: w, height: h, 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: &[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, supp: &mut NADecoderSupport, 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 {
 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
 142             supp.pool_u8.set_dec_bufs(3);
 143             supp.pool_u8.prealloc_video(NAVideoInfo::new(self.bd.width, self.bd.height, false, fmt), 4)?;
 144
 145             Ok(())
 146         } else {
 147 println!("???");
 148             Err(DecoderError::InvalidData)
 149         }
 150     }
 151     fn decode(&mut self, supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> {
 152         let src = pkt.get_buffer();
 153
 154         let (bufinfo, ftype, pts) = self.dec.parse_frame(supp, src.as_slice(), &mut self.bd)?;
 155
 156         let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), bufinfo);
 157         frm.set_keyframe(ftype == FrameType::I);
 158         frm.set_pts(Some(pts));
 159         frm.set_frame_type(ftype);//if ftype == FrameType::B { FrameType::Skip } else { ftype } );
 160         Ok(frm.into_ref())
 161     }
 162 }
 163
 164 pub fn get_decoder() -> Box<dyn NADecoder> {
 165     Box::new(RealVideo30Decoder::new())
 166 }
 167
 168 #[cfg(test)]
 169 mod test {
 170     use nihav_core::codecs::RegisteredDecoders;
 171     use nihav_core::demuxers::RegisteredDemuxers;
 172     use nihav_core::test::dec_video::*;
 173     use crate::codecs::realmedia_register_all_codecs;
 174     use crate::demuxers::realmedia_register_all_demuxers;
 175     #[test]
 176     fn test_rv30() {
 177         let mut dmx_reg = RegisteredDemuxers::new();
 178         realmedia_register_all_demuxers(&mut dmx_reg);
 179         let mut dec_reg = RegisteredDecoders::new();
 180         realmedia_register_all_codecs(&mut dec_reg);
 181
 182 //         test_file_decoding("realmedia", "assets/RV/rv30_chroma_drift.rm", Some(1000), true, false, /*None*/Some("rv30"));
 183         test_file_decoding("realmedia", "assets/RV/rv30_weighted_mc.rm", Some(400), true, false, None/*Some("rv30")*/, &dmx_reg, &dec_reg);
 184 //         test_file_decoding("realmedia", "assets/RV/simpsons-clip.rm", Some(1337)/*Some(6666)*/, true, false, /*None*/Some("rv30"));
 185 //panic!("end");
 186     }
 187 }
 188
 189 const RV30_QUANT_DC: [u8; 32] = [
 190      0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
 191     16, 17, 18, 19, 20, 21, 22, 22, 22, 23, 23, 23, 24, 24, 25, 25
 192 ];
 193
 194 const RV30_MB_TYPES: [[MBType; 6]; 2] = [
 195     [ MBType::MBSkip, MBType::MBP16x16, MBType::MBP8x8,    MBType::Invalid,    MBType::MBIntra, MBType::MBIntra16 ],
 196     [ MBType::MBSkip, MBType::MBDirect, MBType::MBForward, MBType::MBBackward, MBType::MBIntra, MBType::MBIntra16 ],
 197 ];
 198
 199 const RV30_ITYPE_MAP: [i8; 9*9*2] = [
 200     0, 0, 0, 1, 1, 0, 1, 1, 0, 2, 2, 0, 0, 3, 3, 0, 1, 2,
 201     2, 1, 0, 4, 4, 0, 3, 1, 1, 3, 0, 5, 5, 0, 2, 2, 1, 4,
 202     4, 1, 0, 6, 3, 2, 1, 5, 2, 3, 5, 1, 6, 0, 0, 7, 4, 2,
 203     2, 4, 3, 3, 6, 1, 1, 6, 7, 0, 0, 8, 5, 2, 4, 3, 2, 5,
 204     3, 4, 1, 7, 4, 4, 7, 1, 8, 0, 6, 2, 3, 5, 5, 3, 2, 6,
 205     1, 8, 2, 7, 7, 2, 8, 1, 5, 4, 4, 5, 3, 6, 6, 3, 8, 2,
 206     4, 6, 5, 5, 6, 4, 2, 8, 7, 3, 3, 7, 6, 5, 5, 6, 7, 4,
 207     4, 7, 8, 3, 3, 8, 7, 5, 8, 4, 5, 7, 4, 8, 6, 6, 7, 6,
 208     5, 8, 8, 5, 6, 7, 8, 6, 7, 7, 6, 8, 8, 7, 7, 8, 8, 8,
 209 ];
 210
 211 const RV30_ITYPE: [i8; 10*10*9] = [
 212     0, 9, 9, 9, 9, 9, 9, 9, 9,
 213     0, 2, 9, 9, 9, 9, 9, 9, 9,
 214     9, 9, 9, 9, 9, 9, 9, 9, 9,
 215     2, 0, 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     9, 9, 9, 9, 9, 9, 9, 9, 9,
 219     9, 9, 9, 9, 9, 9, 9, 9, 9,
 220     9, 9, 9, 9, 9, 9, 9, 9, 9,
 221     9, 9, 9, 9, 9, 9, 9, 9, 9,
 222
 223     0, 1, 9, 9, 9, 9, 9, 9, 9,
 224     0, 2, 1, 6, 4, 8, 5, 7, 3,
 225     1, 0, 2, 6, 5, 4, 3, 8, 7,
 226     2, 8, 0, 1, 7, 4, 3, 6, 5,
 227     2, 0, 1, 3, 8, 5, 4, 7, 6,
 228     2, 0, 1, 4, 6, 7, 8, 3, 5,
 229     0, 1, 5, 2, 6, 3, 8, 4, 7,
 230     0, 1, 6, 2, 4, 7, 5, 8, 3,
 231     2, 7, 0, 1, 4, 8, 6, 3, 5,
 232     2, 8, 0, 1, 7, 3, 4, 5, 6,
 233
 234     1, 0, 9, 9, 9, 9, 9, 9, 9,
 235     1, 2, 5, 6, 3, 0, 4, 8, 7,
 236     1, 6, 2, 5, 3, 0, 4, 8, 7,
 237     2, 1, 7, 6, 8, 3, 5, 0, 4,
 238     1, 2, 5, 3, 6, 8, 4, 7, 0,
 239     1, 6, 2, 0, 4, 5, 8, 7, 3,
 240     1, 5, 2, 6, 3, 8, 4, 0, 7,
 241     1, 6, 0, 2, 4, 5, 7, 3, 8,
 242     2, 1, 7, 6, 0, 8, 5, 4, 3,
 243     1, 2, 7, 8, 3, 4, 5, 6, 0,
 244
 245     9, 9, 9, 9, 9, 9, 9, 9, 9,
 246     0, 2, 1, 8, 7, 6, 5, 4, 3,
 247     1, 2, 0, 6, 5, 7, 4, 8, 3,
 248     2, 8, 7, 1, 0, 6, 4, 3, 5,
 249     2, 0, 8, 1, 3, 7, 5, 4, 6,
 250     2, 0, 4, 1, 7, 8, 6, 3, 5,
 251     2, 0, 1, 5, 8, 4, 6, 7, 3,
 252     2, 0, 6, 1, 4, 7, 8, 5, 3,
 253     2, 7, 8, 1, 0, 5, 4, 6, 3,
 254     2, 8, 7, 1, 0, 4, 3, 6, 5,
 255
 256     9, 9, 9, 9, 9, 9, 9, 9, 9,
 257     0, 2, 1, 3, 5, 8, 6, 4, 7,
 258     1, 0, 2, 5, 3, 6, 4, 8, 7,
 259     2, 8, 1, 0, 3, 5, 7, 6, 4,
 260     3, 2, 5, 8, 1, 4, 6, 7, 0,
 261     4, 2, 0, 6, 1, 5, 8, 3, 7,
 262     5, 3, 1, 2, 8, 6, 4, 0, 7,
 263     1, 6, 0, 2, 4, 5, 8, 3, 7,
 264     2, 7, 0, 1, 5, 4, 8, 6, 3,
 265     2, 8, 3, 5, 1, 0, 7, 6, 4,
 266
 267     9, 9, 9, 9, 9, 9, 9, 9, 9,
 268     2, 0, 6, 1, 4, 7, 5, 8, 3,
 269     1, 6, 2, 0, 4, 5, 3, 7, 8,
 270     2, 8, 7, 6, 4, 0, 1, 5, 3,
 271     4, 2, 1, 0, 6, 8, 3, 5, 7,
 272     4, 2, 6, 0, 1, 5, 7, 8, 3,
 273     1, 2, 5, 0, 6, 3, 4, 7, 8,
 274     6, 4, 0, 1, 2, 7, 5, 3, 8,
 275     2, 7, 4, 6, 0, 1, 8, 5, 3,
 276     2, 8, 7, 4, 6, 1, 3, 5, 0,
 277
 278     9, 9, 9, 9, 9, 9, 9, 9, 9,
 279     5, 1, 2, 3, 6, 8, 0, 4, 7,
 280     1, 5, 6, 3, 2, 0, 4, 8, 7,
 281     2, 1, 5, 3, 6, 8, 7, 4, 0,
 282     5, 3, 1, 2, 6, 8, 4, 7, 0,
 283     1, 6, 2, 4, 5, 8, 0, 3, 7,
 284     5, 1, 3, 6, 2, 0, 8, 4, 7,
 285     1, 6, 5, 2, 0, 4, 3, 7, 8,
 286     2, 7, 1, 6, 5, 0, 8, 3, 4,
 287     2, 5, 1, 3, 6, 8, 4, 0, 7,
 288
 289     9, 9, 9, 9, 9, 9, 9, 9, 9,
 290     1, 6, 2, 0, 5, 4, 3, 7, 8,
 291     1, 6, 5, 4, 2, 3, 0, 7, 8,
 292     2, 1, 6, 7, 4, 8, 5, 3, 0,
 293     2, 1, 6, 5, 8, 4, 3, 0, 7,
 294     6, 4, 1, 2, 0, 5, 7, 8, 3,
 295     1, 6, 5, 2, 3, 0, 4, 8, 7,
 296     6, 1, 4, 0, 2, 7, 5, 3, 8,
 297     2, 7, 4, 6, 1, 5, 0, 8, 3,
 298     2, 1, 6, 8, 4, 7, 3, 5, 0,
 299
 300     9, 9, 9, 9, 9, 9, 9, 9, 9,
 301     2, 0, 4, 7, 6, 1, 8, 5, 3,
 302     6, 1, 2, 0, 4, 7, 5, 8, 3,
 303     2, 7, 8, 0, 1, 6, 4, 3, 5,
 304     2, 4, 0, 8, 3, 1, 7, 6, 5,
 305     4, 2, 7, 0, 6, 1, 8, 5, 3,
 306     2, 1, 0, 8, 5, 6, 7, 4, 3,
 307     2, 6, 4, 1, 7, 0, 5, 8, 3,
 308     2, 7, 4, 0, 8, 6, 1, 5, 3,
 309     2, 8, 7, 4, 1, 0, 3, 6, 5,
 310
 311     9, 9, 9, 9, 9, 9, 9, 9, 9,
 312     2, 0, 8, 1, 3, 4, 6, 5, 7,
 313     1, 2, 0, 6, 8, 5, 7, 3, 4,
 314     2, 8, 7, 1, 0, 3, 6, 5, 4,
 315     8, 3, 2, 5, 1, 0, 4, 7, 6,
 316     2, 0, 4, 8, 5, 1, 7, 6, 3,
 317     2, 1, 0, 8, 5, 3, 6, 4, 7,
 318     2, 1, 6, 0, 8, 4, 5, 7, 3,
 319     2, 7, 8, 4, 0, 6, 1, 5, 3,
 320     2, 8, 3, 0, 7, 4, 1, 6, 5,
 321 ];