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             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     fn flush(&mut self) {
 163         self.dec.flush();
 164     }
 165 }
 166
 167 impl NAOptionHandler for RealVideo30Decoder {
 168     fn get_supported_options(&self) -> &[NAOptionDefinition] { &[] }
 169     fn set_options(&mut self, _options: &[NAOption]) { }
 170     fn query_option_value(&self, _name: &str) -> Option<NAValue> { None }
 171 }
 172
 173 pub fn get_decoder() -> Box<dyn NADecoder + Send> {
 174     Box::new(RealVideo30Decoder::new())
 175 }
 176
 177 #[cfg(test)]
 178 mod test {
 179     use nihav_core::codecs::RegisteredDecoders;
 180     use nihav_core::demuxers::RegisteredDemuxers;
 181     use nihav_codec_support::test::dec_video::*;
 182     use crate::realmedia_register_all_decoders;
 183     use crate::realmedia_register_all_demuxers;
 184     #[test]
 185     fn test_rv30() {
 186         let mut dmx_reg = RegisteredDemuxers::new();
 187         realmedia_register_all_demuxers(&mut dmx_reg);
 188         let mut dec_reg = RegisteredDecoders::new();
 189         realmedia_register_all_decoders(&mut dec_reg);
 190
 191         // sample from a private collection
 192         test_decoding("realmedia", "realvideo3", "assets/RV/rv30_weighted_mc.rm", Some(700),
 193                       &dmx_reg, &dec_reg, ExpectedTestResult::MD5Frames(vec![
 194                             [0x2a4d13bf, 0x2f21f3c9, 0xcbd601be, 0x61a6405c],
 195                             [0x17ea48c7, 0x68334ff5, 0x6fb9729b, 0x9a93ed12],
 196                             [0xce42a48c, 0x0b5b7f0d, 0x3f66c4a1, 0x261f08e2],
 197                             [0x91ca8f5b, 0x1f578a93, 0x44e533f2, 0x83beec8a],
 198                             [0x8cb256a7, 0xb3889afd, 0x28806114, 0x9bbd5287],
 199                             [0x694570e2, 0x4b2df948, 0xc7d2e36d, 0xa5eb66b2],
 200                             [0xb9b68059, 0x0d420917, 0x4e0f33d4, 0x8d3a6b0b],
 201                             [0xb9d6bfa6, 0x04442a8e, 0x6fafc34e, 0xb418a23e],
 202                             [0xb94e226d, 0xbf8a5fc5, 0x6d9a03c6, 0x4a0d1a50],
 203                             [0xa2e76d33, 0x1b6996e4, 0xb6a26052, 0x3f5f6145],
 204                             [0x3b509515, 0x4aa2f4f9, 0x12a0c73b, 0x5b9b20d1],
 205                             [0x976e0e06, 0xf6194e6f, 0xe0fefc31, 0xf7587bd3],
 206                             [0x7b38660e, 0xa46f4080, 0xa493f422, 0x36eaaa3b],
 207                             [0x6375934a, 0xf2a23087, 0x367f9738, 0xf2251e09],
 208                             [0x54bcefe7, 0xbbc91dc7, 0x0acec7d7, 0x95cf6d02]]));
 209         // sample: https://samples.mplayerhq.hu/real/VC-RV30/simpsons-clip.rm
 210         test_decoding("realmedia", "realvideo3", "assets/RV/simpsons-clip.rm", Some(1337),
 211                       &dmx_reg, &dec_reg,
 212                       ExpectedTestResult::MD5([0x36604117, 0x415f95cc, 0xec38e776, 0x9818d3be]));
 213     }
 214 }
 215
 216 const RV30_QUANT_DC: [u8; 32] = [
 217      0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
 218     16, 17, 18, 19, 20, 21, 22, 22, 22, 23, 23, 23, 24, 24, 25, 25
 219 ];
 220
 221 const RV30_MB_TYPES: [[MBType; 6]; 2] = [
 222     [ MBType::MBSkip, MBType::MBP16x16, MBType::MBP8x8,    MBType::Invalid,    MBType::MBIntra, MBType::MBIntra16 ],
 223     [ MBType::MBSkip, MBType::MBDirect, MBType::MBForward, MBType::MBBackward, MBType::MBIntra, MBType::MBIntra16 ],
 224 ];
 225
 226 const RV30_ITYPE_MAP: [i8; 9*9*2] = [
 227     0, 0, 0, 1, 1, 0, 1, 1, 0, 2, 2, 0, 0, 3, 3, 0, 1, 2,
 228     2, 1, 0, 4, 4, 0, 3, 1, 1, 3, 0, 5, 5, 0, 2, 2, 1, 4,
 229     4, 1, 0, 6, 3, 2, 1, 5, 2, 3, 5, 1, 6, 0, 0, 7, 4, 2,
 230     2, 4, 3, 3, 6, 1, 1, 6, 7, 0, 0, 8, 5, 2, 4, 3, 2, 5,
 231     3, 4, 1, 7, 4, 4, 7, 1, 8, 0, 6, 2, 3, 5, 5, 3, 2, 6,
 232     1, 8, 2, 7, 7, 2, 8, 1, 5, 4, 4, 5, 3, 6, 6, 3, 8, 2,
 233     4, 6, 5, 5, 6, 4, 2, 8, 7, 3, 3, 7, 6, 5, 5, 6, 7, 4,
 234     4, 7, 8, 3, 3, 8, 7, 5, 8, 4, 5, 7, 4, 8, 6, 6, 7, 6,
 235     5, 8, 8, 5, 6, 7, 8, 6, 7, 7, 6, 8, 8, 7, 7, 8, 8, 8,
 236 ];
 237
 238 const RV30_ITYPE: [i8; 10*10*9] = [
 239     0, 9, 9, 9, 9, 9, 9, 9, 9,
 240     0, 2, 9, 9, 9, 9, 9, 9, 9,
 241     9, 9, 9, 9, 9, 9, 9, 9, 9,
 242     2, 0, 9, 9, 9, 9, 9, 9, 9,
 243     9, 9, 9, 9, 9, 9, 9, 9, 9,
 244     9, 9, 9, 9, 9, 9, 9, 9, 9,
 245     9, 9, 9, 9, 9, 9, 9, 9, 9,
 246     9, 9, 9, 9, 9, 9, 9, 9, 9,
 247     9, 9, 9, 9, 9, 9, 9, 9, 9,
 248     9, 9, 9, 9, 9, 9, 9, 9, 9,
 249
 250     0, 1, 9, 9, 9, 9, 9, 9, 9,
 251     0, 2, 1, 6, 4, 8, 5, 7, 3,
 252     1, 0, 2, 6, 5, 4, 3, 8, 7,
 253     2, 8, 0, 1, 7, 4, 3, 6, 5,
 254     2, 0, 1, 3, 8, 5, 4, 7, 6,
 255     2, 0, 1, 4, 6, 7, 8, 3, 5,
 256     0, 1, 5, 2, 6, 3, 8, 4, 7,
 257     0, 1, 6, 2, 4, 7, 5, 8, 3,
 258     2, 7, 0, 1, 4, 8, 6, 3, 5,
 259     2, 8, 0, 1, 7, 3, 4, 5, 6,
 260
 261     1, 0, 9, 9, 9, 9, 9, 9, 9,
 262     1, 2, 5, 6, 3, 0, 4, 8, 7,
 263     1, 6, 2, 5, 3, 0, 4, 8, 7,
 264     2, 1, 7, 6, 8, 3, 5, 0, 4,
 265     1, 2, 5, 3, 6, 8, 4, 7, 0,
 266     1, 6, 2, 0, 4, 5, 8, 7, 3,
 267     1, 5, 2, 6, 3, 8, 4, 0, 7,
 268     1, 6, 0, 2, 4, 5, 7, 3, 8,
 269     2, 1, 7, 6, 0, 8, 5, 4, 3,
 270     1, 2, 7, 8, 3, 4, 5, 6, 0,
 271
 272     9, 9, 9, 9, 9, 9, 9, 9, 9,
 273     0, 2, 1, 8, 7, 6, 5, 4, 3,
 274     1, 2, 0, 6, 5, 7, 4, 8, 3,
 275     2, 8, 7, 1, 0, 6, 4, 3, 5,
 276     2, 0, 8, 1, 3, 7, 5, 4, 6,
 277     2, 0, 4, 1, 7, 8, 6, 3, 5,
 278     2, 0, 1, 5, 8, 4, 6, 7, 3,
 279     2, 0, 6, 1, 4, 7, 8, 5, 3,
 280     2, 7, 8, 1, 0, 5, 4, 6, 3,
 281     2, 8, 7, 1, 0, 4, 3, 6, 5,
 282
 283     9, 9, 9, 9, 9, 9, 9, 9, 9,
 284     0, 2, 1, 3, 5, 8, 6, 4, 7,
 285     1, 0, 2, 5, 3, 6, 4, 8, 7,
 286     2, 8, 1, 0, 3, 5, 7, 6, 4,
 287     3, 2, 5, 8, 1, 4, 6, 7, 0,
 288     4, 2, 0, 6, 1, 5, 8, 3, 7,
 289     5, 3, 1, 2, 8, 6, 4, 0, 7,
 290     1, 6, 0, 2, 4, 5, 8, 3, 7,
 291     2, 7, 0, 1, 5, 4, 8, 6, 3,
 292     2, 8, 3, 5, 1, 0, 7, 6, 4,
 293
 294     9, 9, 9, 9, 9, 9, 9, 9, 9,
 295     2, 0, 6, 1, 4, 7, 5, 8, 3,
 296     1, 6, 2, 0, 4, 5, 3, 7, 8,
 297     2, 8, 7, 6, 4, 0, 1, 5, 3,
 298     4, 2, 1, 0, 6, 8, 3, 5, 7,
 299     4, 2, 6, 0, 1, 5, 7, 8, 3,
 300     1, 2, 5, 0, 6, 3, 4, 7, 8,
 301     6, 4, 0, 1, 2, 7, 5, 3, 8,
 302     2, 7, 4, 6, 0, 1, 8, 5, 3,
 303     2, 8, 7, 4, 6, 1, 3, 5, 0,
 304
 305     9, 9, 9, 9, 9, 9, 9, 9, 9,
 306     5, 1, 2, 3, 6, 8, 0, 4, 7,
 307     1, 5, 6, 3, 2, 0, 4, 8, 7,
 308     2, 1, 5, 3, 6, 8, 7, 4, 0,
 309     5, 3, 1, 2, 6, 8, 4, 7, 0,
 310     1, 6, 2, 4, 5, 8, 0, 3, 7,
 311     5, 1, 3, 6, 2, 0, 8, 4, 7,
 312     1, 6, 5, 2, 0, 4, 3, 7, 8,
 313     2, 7, 1, 6, 5, 0, 8, 3, 4,
 314     2, 5, 1, 3, 6, 8, 4, 0, 7,
 315
 316     9, 9, 9, 9, 9, 9, 9, 9, 9,
 317     1, 6, 2, 0, 5, 4, 3, 7, 8,
 318     1, 6, 5, 4, 2, 3, 0, 7, 8,
 319     2, 1, 6, 7, 4, 8, 5, 3, 0,
 320     2, 1, 6, 5, 8, 4, 3, 0, 7,
 321     6, 4, 1, 2, 0, 5, 7, 8, 3,
 322     1, 6, 5, 2, 3, 0, 4, 8, 7,
 323     6, 1, 4, 0, 2, 7, 5, 3, 8,
 324     2, 7, 4, 6, 1, 5, 0, 8, 3,
 325     2, 1, 6, 8, 4, 7, 3, 5, 0,
 326
 327     9, 9, 9, 9, 9, 9, 9, 9, 9,
 328     2, 0, 4, 7, 6, 1, 8, 5, 3,
 329     6, 1, 2, 0, 4, 7, 5, 8, 3,
 330     2, 7, 8, 0, 1, 6, 4, 3, 5,
 331     2, 4, 0, 8, 3, 1, 7, 6, 5,
 332     4, 2, 7, 0, 6, 1, 8, 5, 3,
 333     2, 1, 0, 8, 5, 6, 7, 4, 3,
 334     2, 6, 4, 1, 7, 0, 5, 8, 3,
 335     2, 7, 4, 0, 8, 6, 1, 5, 3,
 336     2, 8, 7, 4, 1, 0, 3, 6, 5,
 337
 338     9, 9, 9, 9, 9, 9, 9, 9, 9,
 339     2, 0, 8, 1, 3, 4, 6, 5, 7,
 340     1, 2, 0, 6, 8, 5, 7, 3, 4,
 341     2, 8, 7, 1, 0, 3, 6, 5, 4,
 342     8, 3, 2, 5, 1, 0, 4, 7, 6,
 343     2, 0, 4, 8, 5, 1, 7, 6, 3,
 344     2, 1, 0, 8, 5, 3, 6, 4, 7,
 345     2, 1, 6, 0, 8, 4, 5, 7, 3,
 346     2, 7, 8, 4, 0, 6, 1, 5, 3,
 347     2, 8, 3, 0, 7, 4, 1, 6, 5,
 348 ];