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 nihav_codec_support::codecs::{MV, ZERO_MV};
   7 use super::rv3040::*;
   8 use super::rv30dsp::*;
   9
  10 struct RealVideo30BR {
  11     rpr_bits:       u8,
  12     width:          usize,
  13     height:         usize,
  14     widths:         Vec<usize>,
  15     heights:        Vec<usize>,
  16 }
  17
  18 impl RealVideo30BR {
  19     fn new() -> Self {
  20         RealVideo30BR {
  21             rpr_bits:       0,
  22             width:          0,
  23             height:         0,
  24             widths:         Vec::new(),
  25             heights:        Vec::new(),
  26         }
  27     }
  28 }
  29
  30 impl RV34BitstreamDecoder for RealVideo30BR {
  31     fn decode_slice_header(&mut self, br: &mut BitReader, _old_w: usize, _old_h: usize) -> DecoderResult<RV34SliceHeader> {
  32         if br.read(3)? != 0 { return Err(DecoderError::InvalidData); }
  33         let ft_idx              = br.read(2)?;
  34         let ftype = match ft_idx {
  35                 0|1 => FrameType::I,
  36                 2   => FrameType::P,
  37                 _   => FrameType::B,
  38             };
  39         if br.read(1)? != 0 { return Err(DecoderError::InvalidData); }
  40         let q                   = br.read(5)? as u8;
  41         let deblock             = !br.read_bool()?;
  42         let pts                 = br.read(13)? as u16;
  43         let rpr                 = br.read(self.rpr_bits)? as usize;
  44         let (w, h) = if rpr != 0 {
  45                 validate!(rpr < self.widths.len());
  46                 (self.widths[rpr], self.heights[rpr])
  47             } else {
  48                 (self.width, self.height)
  49             };
  50         let start               = br.read(get_slice_start_offset_bits(w, h))? as usize;
  51                                   br.skip(1)?;
  52
  53         Ok(RV34SliceHeader{ ftype, quant: q, deblock, pts, width: w, height: h, start, end: 0, set_idx: 0 })
  54     }
  55     fn decode_intra_pred(&mut self, br: &mut BitReader, types: &mut [i8], mut pos: usize, tstride: usize, _has_top: bool) -> DecoderResult<()> {
  56         for _ in 0..4 {
  57             for x in 0..2 {
  58                 let code = br.read_code(UintCodeType::Gamma)? as usize;
  59                 validate!(code < 81);
  60                 for k in 0..2 {
  61                     let new  = RV30_ITYPE_MAP[code * 2 + k] as usize;
  62                     let top  = (types[pos + x * 2 + k - tstride] + 1) as usize;
  63                     let left = (types[pos + x * 2 + k - 1] + 1) as usize;
  64                     types[pos + x * 2 + k] = RV30_ITYPE[top * 90 + left * 9 + new];
  65                     validate!(types[pos + x * 2 + k] != 9);
  66                 }
  67             }
  68             pos += tstride;
  69         }
  70         Ok(())
  71     }
  72     fn decode_inter_mb_hdr(&mut self, br: &mut BitReader, ftype: FrameType, _mbtype: MBType) -> DecoderResult<MBInfo> {
  73         let mut code = br.read_code(UintCodeType::Gamma)? as usize;
  74         let mut dq = false;
  75         validate!(code < 11);
  76         if code > 5 {
  77             code -= 6;
  78             dq = true;
  79         }
  80         let idx = if ftype == FrameType::P { 0 } else { 1 };
  81         Ok(MBInfo { mbtype: RV30_MB_TYPES[idx][code], skip_run: 0, dquant: dq })
  82     }
  83     fn predict_b_mv(&self, sstate: &SState, mvi: &MVInfo, mbtype: MBType, mvs: &[MV], _mbinfo: &[RV34MBInfo]) -> (MV, MV) {
  84         let mb_x = sstate.mb_x;
  85         let mb_y = sstate.mb_y;
  86         let mv_f;
  87         let mv_b;
  88         match mbtype {
  89             MBType::MBForward | MBType::MBBackward => {
  90                     let mv_pred = mvi.pred_mb_mv(mb_x, mb_y, true, sstate.has_top, sstate.has_left, sstate.has_tr, sstate.has_tl);
  91                     mv_f = mv_pred + mvs[0];
  92                     mv_b = mv_f;
  93                 },
  94             _   => {
  95                     mv_f = ZERO_MV;
  96                     mv_b = ZERO_MV;
  97                 },
  98         };
  99         (mv_f, mv_b)
 100     }
 101     fn quant_dc(&self, _is_intra: bool, q: u8) -> u8 { RV30_QUANT_DC[q as usize] }
 102 }
 103
 104 struct RealVideo30Decoder {
 105     bd:         RealVideo30BR,
 106     info:       NACodecInfoRef,
 107     dec:        RV34Decoder,
 108 }
 109
 110 impl RealVideo30Decoder {
 111     fn new() -> Self {
 112         RealVideo30Decoder{
 113             bd:         RealVideo30BR::new(),
 114             info:       NACodecInfoRef::default(),
 115             dec:        RV34Decoder::new(true, Box::new(RV30DSP::new())),
 116         }
 117     }
 118 }
 119
 120 impl NADecoder for RealVideo30Decoder {
 121     fn init(&mut self, supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> {
 122         if let NACodecTypeInfo::Video(vinfo) = info.get_properties() {
 123             let fmt = formats::YUV420_FORMAT;
 124             let myinfo = NACodecTypeInfo::Video(NAVideoInfo::new(0, 0, false, fmt));
 125             self.info = NACodecInfo::new_ref(info.get_name(), myinfo, info.get_extradata()).into_ref();
 126
 127             let edata = info.get_extradata().unwrap();
 128             let src: &[u8] = &edata;
 129
 130             if src.len() < 2 { return Err(DecoderError::InvalidData); }
 131             let num_rpr     = (src[1] & 7) as usize;
 132             if src.len() < num_rpr * 2 + 8 { return Err(DecoderError::ShortData); }
 133             self.bd.rpr_bits  = ((num_rpr >> 1) + 1) as u8;
 134             if self.bd.rpr_bits > 3 { self.bd.rpr_bits = 3; }
 135             for i in 0..=num_rpr {
 136                 self.bd.widths.push ((src[6 + i * 2] as usize) << 2);
 137                 self.bd.heights.push((src[7 + i * 2] as usize) << 2);
 138             }
 139
 140             self.bd.width  = vinfo.get_width();
 141             self.bd.height = vinfo.get_height();
 142
 143             supp.pool_u8.set_dec_bufs(3);
 144             supp.pool_u8.prealloc_video(NAVideoInfo::new(self.bd.width, self.bd.height, false, fmt), 4)?;
 145
 146             Ok(())
 147         } else {
 148 println!("???");
 149             Err(DecoderError::InvalidData)
 150         }
 151     }
 152     fn decode(&mut self, supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> {
 153         let src = pkt.get_buffer();
 154
 155         let (bufinfo, ftype, pts) = self.dec.parse_frame(supp, src.as_slice(), &mut self.bd)?;
 156
 157         let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), bufinfo);
 158         frm.set_keyframe(ftype == FrameType::I);
 159         frm.set_pts(Some(pts));
 160         frm.set_frame_type(ftype);//if ftype == FrameType::B { FrameType::Skip } else { ftype } );
 161         Ok(frm.into_ref())
 162     }
 163     fn flush(&mut self) {
 164         self.dec.flush();
 165     }
 166 }
 167
 168 pub fn get_decoder() -> Box<dyn NADecoder + Send> {
 169     Box::new(RealVideo30Decoder::new())
 170 }
 171
 172 #[cfg(test)]
 173 mod test {
 174     use nihav_core::codecs::RegisteredDecoders;
 175     use nihav_core::demuxers::RegisteredDemuxers;
 176     use nihav_core::test::dec_video::*;
 177     use crate::realmedia_register_all_codecs;
 178     use crate::realmedia_register_all_demuxers;
 179     #[test]
 180     fn test_rv30() {
 181         let mut dmx_reg = RegisteredDemuxers::new();
 182         realmedia_register_all_demuxers(&mut dmx_reg);
 183         let mut dec_reg = RegisteredDecoders::new();
 184         realmedia_register_all_codecs(&mut dec_reg);
 185
 186 //         test_file_decoding("realmedia", "assets/RV/rv30_chroma_drift.rm", Some(1000), true, false, /*None*/Some("rv30"));
 187         test_file_decoding("realmedia", "assets/RV/rv30_weighted_mc.rm", Some(400), true, false, None/*Some("rv30")*/, &dmx_reg, &dec_reg);
 188 //         test_file_decoding("realmedia", "assets/RV/simpsons-clip.rm", Some(1337)/*Some(6666)*/, true, false, /*None*/Some("rv30"));
 189 //panic!("end");
 190     }
 191 }
 192
 193 const RV30_QUANT_DC: [u8; 32] = [
 194      0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
 195     16, 17, 18, 19, 20, 21, 22, 22, 22, 23, 23, 23, 24, 24, 25, 25
 196 ];
 197
 198 const RV30_MB_TYPES: [[MBType; 6]; 2] = [
 199     [ MBType::MBSkip, MBType::MBP16x16, MBType::MBP8x8,    MBType::Invalid,    MBType::MBIntra, MBType::MBIntra16 ],
 200     [ MBType::MBSkip, MBType::MBDirect, MBType::MBForward, MBType::MBBackward, MBType::MBIntra, MBType::MBIntra16 ],
 201 ];
 202
 203 const RV30_ITYPE_MAP: [i8; 9*9*2] = [
 204     0, 0, 0, 1, 1, 0, 1, 1, 0, 2, 2, 0, 0, 3, 3, 0, 1, 2,
 205     2, 1, 0, 4, 4, 0, 3, 1, 1, 3, 0, 5, 5, 0, 2, 2, 1, 4,
 206     4, 1, 0, 6, 3, 2, 1, 5, 2, 3, 5, 1, 6, 0, 0, 7, 4, 2,
 207     2, 4, 3, 3, 6, 1, 1, 6, 7, 0, 0, 8, 5, 2, 4, 3, 2, 5,
 208     3, 4, 1, 7, 4, 4, 7, 1, 8, 0, 6, 2, 3, 5, 5, 3, 2, 6,
 209     1, 8, 2, 7, 7, 2, 8, 1, 5, 4, 4, 5, 3, 6, 6, 3, 8, 2,
 210     4, 6, 5, 5, 6, 4, 2, 8, 7, 3, 3, 7, 6, 5, 5, 6, 7, 4,
 211     4, 7, 8, 3, 3, 8, 7, 5, 8, 4, 5, 7, 4, 8, 6, 6, 7, 6,
 212     5, 8, 8, 5, 6, 7, 8, 6, 7, 7, 6, 8, 8, 7, 7, 8, 8, 8,
 213 ];
 214
 215 const RV30_ITYPE: [i8; 10*10*9] = [
 216     0, 9, 9, 9, 9, 9, 9, 9, 9,
 217     0, 2, 9, 9, 9, 9, 9, 9, 9,
 218     9, 9, 9, 9, 9, 9, 9, 9, 9,
 219     2, 0, 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     9, 9, 9, 9, 9, 9, 9, 9, 9,
 223     9, 9, 9, 9, 9, 9, 9, 9, 9,
 224     9, 9, 9, 9, 9, 9, 9, 9, 9,
 225     9, 9, 9, 9, 9, 9, 9, 9, 9,
 226
 227     0, 1, 9, 9, 9, 9, 9, 9, 9,
 228     0, 2, 1, 6, 4, 8, 5, 7, 3,
 229     1, 0, 2, 6, 5, 4, 3, 8, 7,
 230     2, 8, 0, 1, 7, 4, 3, 6, 5,
 231     2, 0, 1, 3, 8, 5, 4, 7, 6,
 232     2, 0, 1, 4, 6, 7, 8, 3, 5,
 233     0, 1, 5, 2, 6, 3, 8, 4, 7,
 234     0, 1, 6, 2, 4, 7, 5, 8, 3,
 235     2, 7, 0, 1, 4, 8, 6, 3, 5,
 236     2, 8, 0, 1, 7, 3, 4, 5, 6,
 237
 238     1, 0, 9, 9, 9, 9, 9, 9, 9,
 239     1, 2, 5, 6, 3, 0, 4, 8, 7,
 240     1, 6, 2, 5, 3, 0, 4, 8, 7,
 241     2, 1, 7, 6, 8, 3, 5, 0, 4,
 242     1, 2, 5, 3, 6, 8, 4, 7, 0,
 243     1, 6, 2, 0, 4, 5, 8, 7, 3,
 244     1, 5, 2, 6, 3, 8, 4, 0, 7,
 245     1, 6, 0, 2, 4, 5, 7, 3, 8,
 246     2, 1, 7, 6, 0, 8, 5, 4, 3,
 247     1, 2, 7, 8, 3, 4, 5, 6, 0,
 248
 249     9, 9, 9, 9, 9, 9, 9, 9, 9,
 250     0, 2, 1, 8, 7, 6, 5, 4, 3,
 251     1, 2, 0, 6, 5, 7, 4, 8, 3,
 252     2, 8, 7, 1, 0, 6, 4, 3, 5,
 253     2, 0, 8, 1, 3, 7, 5, 4, 6,
 254     2, 0, 4, 1, 7, 8, 6, 3, 5,
 255     2, 0, 1, 5, 8, 4, 6, 7, 3,
 256     2, 0, 6, 1, 4, 7, 8, 5, 3,
 257     2, 7, 8, 1, 0, 5, 4, 6, 3,
 258     2, 8, 7, 1, 0, 4, 3, 6, 5,
 259
 260     9, 9, 9, 9, 9, 9, 9, 9, 9,
 261     0, 2, 1, 3, 5, 8, 6, 4, 7,
 262     1, 0, 2, 5, 3, 6, 4, 8, 7,
 263     2, 8, 1, 0, 3, 5, 7, 6, 4,
 264     3, 2, 5, 8, 1, 4, 6, 7, 0,
 265     4, 2, 0, 6, 1, 5, 8, 3, 7,
 266     5, 3, 1, 2, 8, 6, 4, 0, 7,
 267     1, 6, 0, 2, 4, 5, 8, 3, 7,
 268     2, 7, 0, 1, 5, 4, 8, 6, 3,
 269     2, 8, 3, 5, 1, 0, 7, 6, 4,
 270
 271     9, 9, 9, 9, 9, 9, 9, 9, 9,
 272     2, 0, 6, 1, 4, 7, 5, 8, 3,
 273     1, 6, 2, 0, 4, 5, 3, 7, 8,
 274     2, 8, 7, 6, 4, 0, 1, 5, 3,
 275     4, 2, 1, 0, 6, 8, 3, 5, 7,
 276     4, 2, 6, 0, 1, 5, 7, 8, 3,
 277     1, 2, 5, 0, 6, 3, 4, 7, 8,
 278     6, 4, 0, 1, 2, 7, 5, 3, 8,
 279     2, 7, 4, 6, 0, 1, 8, 5, 3,
 280     2, 8, 7, 4, 6, 1, 3, 5, 0,
 281
 282     9, 9, 9, 9, 9, 9, 9, 9, 9,
 283     5, 1, 2, 3, 6, 8, 0, 4, 7,
 284     1, 5, 6, 3, 2, 0, 4, 8, 7,
 285     2, 1, 5, 3, 6, 8, 7, 4, 0,
 286     5, 3, 1, 2, 6, 8, 4, 7, 0,
 287     1, 6, 2, 4, 5, 8, 0, 3, 7,
 288     5, 1, 3, 6, 2, 0, 8, 4, 7,
 289     1, 6, 5, 2, 0, 4, 3, 7, 8,
 290     2, 7, 1, 6, 5, 0, 8, 3, 4,
 291     2, 5, 1, 3, 6, 8, 4, 0, 7,
 292
 293     9, 9, 9, 9, 9, 9, 9, 9, 9,
 294     1, 6, 2, 0, 5, 4, 3, 7, 8,
 295     1, 6, 5, 4, 2, 3, 0, 7, 8,
 296     2, 1, 6, 7, 4, 8, 5, 3, 0,
 297     2, 1, 6, 5, 8, 4, 3, 0, 7,
 298     6, 4, 1, 2, 0, 5, 7, 8, 3,
 299     1, 6, 5, 2, 3, 0, 4, 8, 7,
 300     6, 1, 4, 0, 2, 7, 5, 3, 8,
 301     2, 7, 4, 6, 1, 5, 0, 8, 3,
 302     2, 1, 6, 8, 4, 7, 3, 5, 0,
 303
 304     9, 9, 9, 9, 9, 9, 9, 9, 9,
 305     2, 0, 4, 7, 6, 1, 8, 5, 3,
 306     6, 1, 2, 0, 4, 7, 5, 8, 3,
 307     2, 7, 8, 0, 1, 6, 4, 3, 5,
 308     2, 4, 0, 8, 3, 1, 7, 6, 5,
 309     4, 2, 7, 0, 6, 1, 8, 5, 3,
 310     2, 1, 0, 8, 5, 6, 7, 4, 3,
 311     2, 6, 4, 1, 7, 0, 5, 8, 3,
 312     2, 7, 4, 0, 8, 6, 1, 5, 3,
 313     2, 8, 7, 4, 1, 0, 3, 6, 5,
 314
 315     9, 9, 9, 9, 9, 9, 9, 9, 9,
 316     2, 0, 8, 1, 3, 4, 6, 5, 7,
 317     1, 2, 0, 6, 8, 5, 7, 3, 4,
 318     2, 8, 7, 1, 0, 3, 6, 5, 4,
 319     8, 3, 2, 5, 1, 0, 4, 7, 6,
 320     2, 0, 4, 8, 5, 1, 7, 6, 3,
 321     2, 1, 0, 8, 5, 3, 6, 4, 7,
 322     2, 1, 6, 0, 8, 4, 5, 7, 3,
 323     2, 7, 8, 4, 0, 6, 1, 5, 3,
 324     2, 8, 3, 0, 7, 4, 1, 6, 5,
 325 ];