[nihav.git] / nihav-duck / src / codecs / vp5.rs

use nihav_core::codecs::*;
use nihav_core::io::bitreader::*;
use super::vpcommon::*;
use super::vp56::*;

struct VP5BR {}

impl VP5BR {
    fn new() -> Self {
        Self {}
    }
}

impl VP56Parser for VP5BR {
    fn parse_header(&mut self, bc: &mut BoolCoder) -> DecoderResult<VP56Header> {
        let mut hdr = VP56Header::default();
        hdr.is_intra                            = !bc.read_bool();
        hdr.is_golden = hdr.is_intra;
                                                  bc.read_bool();
        hdr.quant                               = bc.read_bits(6) as u8;
        if hdr.is_intra {
            hdr.version                         = bc.read_bits(13) as u8;
            validate!(hdr.version == 5);
            hdr.profile                         = bc.read_bits(2) as u8;
            hdr.interlaced                      = bc.read_bool();
            validate!(!hdr.interlaced);
            hdr.mb_h                            = bc.read_bits(8) as u8;
            hdr.mb_w                            = bc.read_bits(8) as u8;
            hdr.disp_h                          = bc.read_bits(8) as u8;
            hdr.disp_w                          = bc.read_bits(8) as u8;
            validate!((hdr.mb_h > 0) && (hdr.mb_w > 0) && (hdr.disp_w > 0) && (hdr.disp_h > 0));
            validate!((hdr.disp_w <= hdr.mb_w) && (hdr.disp_h <= hdr.mb_h));
            hdr.scale                           = bc.read_bits(2) as u8;
        }
        
        Ok(hdr)
    }
    fn decode_mv(&self, bc: &mut BoolCoder, model: &VP56MVModel) -> i16 {
        if bc.read_prob(model.nz_prob) {
            let sign                            = bc.read_prob(model.sign_prob);
            let b0                              = bc.read_prob(model.raw_probs[0]) as i16;
            let b1                              = bc.read_prob(model.raw_probs[1]) as i16;
            let top: i16 = vp_tree!(bc, model.tree_probs[0],
                                vp_tree!(bc, model.tree_probs[1],
                                    vp_tree!(bc, model.tree_probs[2], 0, 1),
                                    vp_tree!(bc, model.tree_probs[3], 2, 3)
                                ),
                                vp_tree!(bc, model.tree_probs[4],
                                    vp_tree!(bc, model.tree_probs[5], 4, 5),
                                    vp_tree!(bc, model.tree_probs[6], 6, 7)
                                )
                           );
            let val = (top << 2) | (b1 << 1) | b0;
            if !sign {
                val
            } else {
                -val
            }
        } else {
            0
        }
    }
    fn reset_models(&self, models: &mut VP56Models) {
        for mdl in models.mv_models.iter_mut() {
            mdl.nz_prob         = 128;
            mdl.sign_prob       = 128;
            mdl.raw_probs[0]    = 85;
            mdl.raw_probs[1]    = 128;
            mdl.tree_probs      = [128; 7];
        }
    }
    fn decode_mv_models(&self, bc: &mut BoolCoder, models: &mut [VP56MVModel; 2]) -> DecoderResult<()> {
        const HAS_NZ_PROB:   [u8; 2] = [ 243, 235 ];
        const HAS_SIGN_PROB: [u8; 2] = [ 220, 211 ];
        const HAS_RAW0_PROB: [u8; 2] = [ 251, 246 ];
        const HAS_RAW1_PROB: [u8; 2] = [ 253, 249 ];
        const HAS_TREE_PROB: [[u8; 7]; 2] = [
            [ 237, 232, 241, 245, 247, 251, 253 ],
            [ 234, 231, 248, 249, 252, 252, 254 ]
        ];
        for comp in 0..2 {
            if bc.read_prob(HAS_NZ_PROB[comp]) {
                models[comp].nz_prob            = bc.read_probability();
            }
            if bc.read_prob(HAS_SIGN_PROB[comp]) {
                models[comp].sign_prob          = bc.read_probability();
            }
            if bc.read_prob(HAS_RAW0_PROB[comp]) {
                models[comp].raw_probs[0]       = bc.read_probability();
            }
            if bc.read_prob(HAS_RAW1_PROB[comp]) {
                models[comp].raw_probs[1]       = bc.read_probability();
            }
        }
        for comp in 0..2 {
            for i in 0..7 {
                if bc.read_prob(HAS_TREE_PROB[comp][i]) {
                    models[comp].tree_probs[i]  = bc.read_probability();
                }
            }
        }
        Ok(())
    }
    fn decode_coeff_models(&self, bc: &mut BoolCoder, models: &mut VP56Models, is_intra: bool) -> DecoderResult<()> {
        const COEF_PROBS: [[u8; 11]; 2] = [
            [ 146, 197, 181, 207, 232, 243, 238, 251, 244, 250, 249 ],
            [ 179, 219, 214, 240, 250, 254, 244, 254, 254, 254, 254 ]
        ];

        let mut def_prob = [128u8; 11];
        for plane in 0..2 {
            for i in 0..11 {
                if bc.read_prob(COEF_PROBS[plane][i]) {
                    def_prob[i]                 = bc.read_probability();
                    models.coeff_models[plane].dc_value_probs[i] = def_prob[i];
                } else if is_intra {
                    models.coeff_models[plane].dc_value_probs[i] = def_prob[i];
                }
            }
        }
        for ctype in 0..3 {
            for plane in 0..2 {
                for group in 0..6 {
                    for i in 0..11 {
                        if bc.read_prob(VP5_AC_PROBS[ctype][plane][group][i]) {
                            def_prob[i]         = bc.read_probability();
                            models.coeff_models[plane].ac_val_probs[ctype][group][i] = def_prob[i];
                        } else if is_intra {
                            models.coeff_models[plane].ac_val_probs[ctype][group][i] = def_prob[i];
                        }
                    }
                }
            }
        }
        for plane in 0..2 {
            let mdl = &mut models.coeff_models[plane];
            for i in 0..6 {
                for j in 0..6 {
                    for k in 0..5 {
                        mdl.dc_token_probs[i][j][k] = rescale_prob(mdl.dc_value_probs[k], &VP5_DC_WEIGHTS[k][i][j], 254);
                    }
                }
            }
            for ctype in 0..3 {
                for group in 0..3 {
                    for i in 0..6 {
                        for j in 0..5 {
                            mdl.ac_type_probs[ctype][group][i][j] = rescale_prob(mdl.ac_val_probs[ctype][group][j], &VP5_AC_WEIGHTS[ctype][group][j][i], 254);
                        }
                    }
                }
            }
        }
        Ok(())
    }
    fn decode_block(&self, bc: &mut BoolCoder, coeffs: &mut [i16; 64], model: &VP56CoeffModel, _vp6model: &VP6Models, fstate: &mut FrameState) -> DecoderResult<()> {
        const COEF_GROUPS: [u8; 64] = [
            0, 0, 1, 1, 2, 1, 1, 2,
            2, 1, 1, 2, 2, 2, 1, 2,
            2, 2, 2, 2, 1, 1, 2, 2,
            3, 3, 4, 3, 4, 4, 4, 3,
            3, 3, 3, 3, 4, 3, 3, 3,
            4, 4, 4, 4, 4, 3, 3, 4,
            4, 4, 3, 4, 4, 4, 4, 4,
            4, 4, 5, 5, 5, 5, 5, 5
        ];

        let mut ctype = 1;
        let left_ctx = fstate.coeff_cat[fstate.ctx_idx][0] as usize;
        let top_ctx = fstate.top_ctx as usize;

        let mut val_probs: &[u8; 11] = &model.dc_value_probs;
        let mut tok_probs: &[u8] = &model.dc_token_probs[left_ctx][top_ctx];
        let mut idx = 0;
        loop {
            let token = vp_tree!(bc, tok_probs[0],
                            if ctype != 0 { vp_tree!(bc, tok_probs[1], break, 0) } else { 0 },
                            vp_tree!(bc, tok_probs[2],
                                1,
                                vp_tree!(bc, tok_probs[3],
                                    vp_tree!(bc, tok_probs[4], 2,
                                             vp_tree!(bc, val_probs[5], 3, 4)),
                                    TOKEN_LARGE)));
            let val = expand_token_bc(bc, val_probs, token, 5);
            ctype = token.min(2) as usize;
            if token < TOKEN_LARGE {
                fstate.coeff_cat[fstate.ctx_idx][idx] = token.min(3);
            } else {
                fstate.coeff_cat[fstate.ctx_idx][idx] = 4;
            }
            coeffs[ZIGZAG[idx]] = val;
            if idx > 0 {
                coeffs[ZIGZAG[idx]] *= fstate.ac_quant;
            }
            
            idx += 1;
            if idx >= 64 {
                break;
            }
            let group = COEF_GROUPS[idx] as usize;
            val_probs = &model.ac_val_probs[ctype][group];
            tok_probs = if group > 2 { val_probs
                        } else {
                            let ctx = fstate.coeff_cat[fstate.ctx_idx][idx] as usize;
                            &model.ac_type_probs[ctype][group][ctx]
                        };
        }
        let end = fstate.last_idx[fstate.ctx_idx].min(24);
        fstate.last_idx[fstate.ctx_idx] = idx;
        for i in idx..end {
            fstate.coeff_cat[fstate.ctx_idx][i] = 5;
        }
        fstate.top_ctx = fstate.coeff_cat[fstate.ctx_idx][0];

        Ok(())
    }
    fn decode_block_huff(&self, _br: &mut BitReader, _coeffs: &mut [i16; 64], _vp6model: &VP6Models, _model: &VP6HuffModels, _fstate: &mut FrameState) -> DecoderResult<()> {
        unreachable!();
    }
    fn mc_block(&self, dst: &mut NASimpleVideoFrame<u8>, mc_buf: NAVideoBufferRef<u8>, src: NAVideoBufferRef<u8>, plane: usize, x: usize, y: usize, mv: MV, loop_str: i16) {
        let (sx, sy, mx, my) = if (plane != 1) && (plane != 2) {
                (mv.x >> 1, mv.y >> 1, mv.x & 1, mv.y & 1)
            } else {
                (mv.x >> 2, mv.y >> 2, if (mv.x & 3) != 0 { 1 } else { 0 }, if (mv.y & 3) != 0 { 1 } else { 0 })
            };
        let mode1 = (mx as usize) + (my as usize) * 2;
        let mode = if (mode1 == 3) && (mv.x ^ mv.y < 0) {
                4
            } else {
                mode1
            };
        vp_copy_block(dst, src, plane, x, y, sx, sy, 0, 1, loop_str,
                      mode, VP3_INTERP_FUNCS, mc_buf);
    }
}

struct VP5Decoder {
    dec:        VP56Decoder,
    info:       NACodecInfoRef,
    br:         VP5BR,
}

impl VP5Decoder {
    fn new() -> Self {
        Self {
            dec:        VP56Decoder::new(5, false, true),
            info:       NACodecInfoRef::default(),
            br:         VP5BR::new(),
        }
    }
}

impl NADecoder for VP5Decoder {
    fn init(&mut self, supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> {
        if let NACodecTypeInfo::Video(vinfo) = info.get_properties() {
            let myvinfo = NAVideoInfo::new(vinfo.get_width(), vinfo.get_height(), false, YUV420_FORMAT);
            let myinfo = NACodecTypeInfo::Video(myvinfo.clone());
            self.info = NACodecInfo::new_ref(info.get_name(), myinfo, info.get_extradata()).into_ref();
            self.dec.init(supp, myvinfo)?;
            Ok(())
        } else {
            Err(DecoderError::InvalidData)
        }
    }
    fn decode(&mut self, supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> {
        let src = pkt.get_buffer();

        let (bufinfo, ftype) = self.dec.decode_frame(supp, src.as_slice(), &mut self.br)?;

        let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), bufinfo);
        frm.set_keyframe(ftype == FrameType::I);
        frm.set_frame_type(ftype);
        Ok(frm.into_ref())
    }
    fn flush(&mut self) {
        self.dec.flush();
    }
}

pub fn get_decoder() -> Box<NADecoder + Send> {
    Box::new(VP5Decoder::new())
}

#[cfg(test)]
mod test {
    use nihav_core::codecs::RegisteredDecoders;
    use nihav_core::demuxers::RegisteredDemuxers;
    use nihav_core::test::dec_video::*;
    use crate::codecs::duck_register_all_codecs;
    use nihav_commonfmt::demuxers::generic_register_all_demuxers;

    #[test]
    fn test_vp5() {
        let mut dmx_reg = RegisteredDemuxers::new();
        generic_register_all_demuxers(&mut dmx_reg);
        let mut dec_reg = RegisteredDecoders::new();
        duck_register_all_codecs(&mut dec_reg);

        let file = "assets/Duck/Cell-140.vp5";
        //let file = "assets/Duck/Chocolat-500.vp5";
        test_decoding("avi", "vp5", file, Some(96), &dmx_reg, &dec_reg,
                      ExpectedTestResult::MD5([0x9ad78b0f, 0xed988ead, 0x88ed2ea9, 0xcdb75cdf]));
    }
}

const VP5_AC_PROBS: [[[[u8; 11]; 6]; 2]; 3] = [
  [
    [
      [ 227, 246, 230, 247, 244, 254, 254, 254, 254, 254, 254 ],
      [ 202, 254, 209, 231, 231, 249, 249, 253, 254, 254, 254 ],
      [ 206, 254, 225, 242, 241, 251, 253, 254, 254, 254, 254 ],
      [ 235, 254, 241, 253, 252, 254, 254, 254, 254, 254, 254 ],
      [ 234, 254, 248, 254, 254, 254, 254, 254, 254, 254, 254 ],
      [ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ]
    ], [
      [ 240, 254, 248, 254, 254, 254, 254, 254, 254, 254, 254 ],
      [ 238, 254, 240, 253, 254, 254, 254, 254, 254, 254, 254 ],
      [ 244, 254, 251, 254, 254, 254, 254, 254, 254, 254, 254 ],
      [ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ],
      [ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ],
      [ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ]
    ]
  ], [
    [
      [ 206, 203, 227, 239, 247, 254, 253, 254, 254, 254, 254 ],
      [ 207, 199, 220, 236, 243, 252, 252, 254, 254, 254, 254 ],
      [ 212, 219, 230, 243, 244, 253, 252, 254, 254, 254, 254 ],
      [ 236, 237, 247, 252, 253, 254, 254, 254, 254, 254, 254 ],
      [ 240, 240, 248, 254, 254, 254, 254, 254, 254, 254, 254 ],
      [ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ]
    ], [
      [ 230, 233, 249, 254, 254, 254, 254, 254, 254, 254, 254 ],
      [ 238, 238, 250, 254, 254, 254, 254, 254, 254, 254, 254 ],
      [ 248, 251, 254, 254, 254, 254, 254, 254, 254, 254, 254 ],
      [ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ],
      [ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ],
      [ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ]
    ]
  ], [
    [
      [ 225, 239, 227, 231, 244, 253, 243, 254, 254, 253, 254 ],
      [ 232, 234, 224, 228, 242, 249, 242, 252, 251, 251, 254 ],
      [ 235, 249, 238, 240, 251, 254, 249, 254, 253, 253, 254 ],
      [ 249, 253, 251, 250, 254, 254, 254, 254, 254, 254, 254 ],
      [ 251, 250, 249, 254, 254, 254, 254, 254, 254, 254, 254 ],
      [ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ]
    ], [
      [ 243, 244, 250, 250, 254, 254, 254, 254, 254, 254, 254 ],
      [ 249, 248, 250, 253, 254, 254, 254, 254, 254, 254, 254 ],
      [ 253, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ],
      [ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ],
      [ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ],
      [ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ]
    ]
  ]
];

const VP5_DC_WEIGHTS: [[[[i16; 2]; 6]; 6]; 5] = [
  [
    [ [154,  61], [141,  54], [ 90,  45], [ 54,  34], [ 54,  13], [128, 109] ],
    [ [136,  54], [148,  45], [ 92,  41], [ 54,  33], [ 51,  15], [ 87, 113] ],
    [ [ 87,  44], [ 97,  40], [ 67,  36], [ 46,  29], [ 41,  15], [ 64,  80] ],
    [ [ 59,  33], [ 61,  31], [ 51,  28], [ 44,  22], [ 33,  12], [ 49,  63] ],
    [ [ 69,  12], [ 59,  16], [ 46,  14], [ 31,  13], [ 26,   6], [ 92,  26] ],
    [ [128, 108], [ 77, 119], [ 54,  84], [ 26,  71], [ 87,  19], [ 95, 155] ]
  ], [
    [ [154,   4], [182,   0], [159,  -8], [128,  -5], [143,  -5], [187,  55] ],
    [ [182,   0], [228,  -3], [187,  -7], [174,  -9], [189, -11], [169,  79] ],
    [ [161,  -9], [192,  -8], [187,  -9], [169, -10], [136,  -9], [184,  40] ],
    [ [164, -11], [179, -10], [174, -10], [161, -10], [115,  -7], [197,  20] ],
    [ [195, -11], [195, -11], [146, -10], [110,  -6], [ 95,  -4], [195,  39] ],
    [ [182,  55], [172,  77], [177,  37], [169,  29], [172,  52], [ 92, 162] ]
  ], [
    [ [174,  80], [164,  80], [ 95,  80], [ 46,  66], [ 56,  24], [ 36, 193] ],
    [ [164,  80], [166,  77], [105,  76], [ 49,  68], [ 46,  31], [ 49, 186] ],
    [ [ 97,  78], [110,  74], [ 72,  72], [ 44,  60], [ 33,  30], [ 69, 131] ],
    [ [ 61,  61], [ 69,  63], [ 51,  57], [ 31,  48], [ 26,  27], [ 64,  89] ],
    [ [ 67,  23], [ 51,  32], [ 36,  33], [ 26,  28], [ 20,  12], [ 44,  68] ],
    [ [ 26, 197], [ 41, 189], [ 61, 129], [ 28, 103], [ 49,  52], [-12, 245] ]
  ], [
    [ [102, 141], [ 79, 166], [ 72, 162], [ 97, 125], [179,   4], [307,   0] ],
    [ [ 72, 168], [ 69, 175], [ 84, 160], [105, 127], [148,  34], [310,   0] ],
    [ [ 84, 151], [ 82, 161], [ 87, 153], [ 87, 135], [115,  51], [317,   0] ],
    [ [ 97, 125], [102, 131], [105, 125], [ 87, 122], [ 84,  64], [ 54, 184] ],
    [ [166,  18], [146,  43], [125,  51], [ 90,  64], [ 95,   7], [ 38, 154] ],
    [ [294,   0], [ 13, 225], [ 10, 225], [ 67, 168], [  0, 167], [161,  94] ]
  ], [
    [ [172,  76], [172,  75], [136,  80], [ 64,  98], [ 74,  67], [315,   0] ],
    [ [169,  76], [207,  56], [164,  66], [ 97,  80], [ 67,  72], [328,   0] ],
    [ [136,  80], [187,  53], [154,  62], [ 72,  85], [ -2, 105], [305,   0] ],
    [ [ 74,  91], [128,  64], [113,  64], [ 61,  77], [ 41,  75], [259,   0] ],
    [ [ 46,  84], [ 51,  81], [ 28,  89], [ 31,  78], [ 23,  77], [202,   0] ],
    [ [323,   0], [323,   0], [300,   0], [236,   0], [195,   0], [328,   0] ]
  ]
];

const VP5_AC_WEIGHTS: [[[[[i16; 2]; 6]; 5]; 3]; 3] = [
  [
    [
      [ [276,  0], [238,  0], [195,  0], [156,  0], [113,  0], [274,  0] ],
      [ [  0,  1], [  0,  1], [  0,  1], [  0,  1], [  0,  1], [  0,  1] ],
      [ [192, 59], [182, 50], [141, 48], [110, 40], [ 92, 19], [125,128] ],
      [ [169, 87], [169, 83], [184, 62], [220, 16], [184,  0], [264,  0] ],
      [ [212, 40], [212, 36], [169, 49], [174, 27], [  8,120], [182, 71] ]
    ], [
      [ [259, 10], [197, 19], [143, 22], [123, 16], [110,  8], [133, 88] ],
      [ [  0,  1], [256,  0], [  0,  1], [  0,  1], [  0,  1], [  0,  1] ],
      [ [207, 46], [187, 50], [ 97, 83], [ 23,100], [ 41, 56], [ 56,188] ],
      [ [166, 90], [146,108], [161, 88], [136, 95], [174,  0], [266,  0] ],
      [ [264,  7], [243, 18], [184, 43], [-14,154], [ 20,112], [ 20,199] ]
    ], [
      [ [230, 26], [197, 22], [159, 20], [146, 12], [136,  4], [ 54,162] ],
      [ [  0,  1], [  0,  1], [  0,  1], [  0,  1], [  0,  1], [  0,  1] ],
      [ [192, 59], [156, 72], [ 84,101], [ 49,101], [ 79, 47], [ 79,167] ],
      [ [138,115], [136,116], [166, 80], [238,  0], [195,  0], [261,  0] ],
      [ [225, 33], [205, 42], [159, 61], [ 79, 96], [ 92, 66], [ 28,195] ]
    ]
  ], [
    [
      [ [200, 37], [197, 18], [159, 13], [143,  7], [102,  5], [123,126] ],
      [ [197,  3], [220, -9], [210,-12], [187, -6], [151, -2], [174, 80] ],
      [ [200, 53], [187, 47], [159, 40], [118, 38], [100, 18], [141,111] ],
      [ [179, 78], [166, 86], [197, 50], [207, 27], [187,  0], [115,139] ],
      [ [218, 34], [220, 29], [174, 46], [128, 61], [ 54, 89], [187, 65] ]
    ], [
      [ [238, 14], [197, 18], [125, 26], [ 90, 25], [ 82, 13], [161, 86] ],
      [ [189,  1], [205, -2], [156, -4], [143, -4], [146, -4], [172, 72] ],
      [ [230, 31], [192, 45], [102, 76], [ 38, 85], [ 56, 41], [ 64,173] ],
      [ [166, 91], [141,111], [128,116], [118,109], [177,  0], [ 23,222] ],
      [ [253, 14], [236, 21], [174, 49], [ 33,118], [ 44, 93], [ 23,187] ]
    ], [
      [ [218, 28], [179, 28], [118, 35], [ 95, 30], [ 72, 24], [128,108] ],
      [ [187,  1], [174, -1], [125, -1], [110, -1], [108, -1], [202, 52] ],
      [ [197, 53], [146, 75], [ 46,118], [ 33,103], [ 64, 50], [118,126] ],
      [ [138,114], [128,122], [161, 86], [243, -6], [195,  0], [ 38,210] ],
      [ [215, 39], [179, 58], [ 97,101], [ 95, 85], [ 87, 70], [ 69,152] ]
    ]
  ], [
    [
      [ [236, 24], [205, 18], [172, 12], [154,  6], [125,  1], [169, 75] ],
      [ [187,  4], [230, -2], [228, -4], [236, -4], [241, -2], [192, 66] ],
      [ [200, 46], [187, 42], [159, 34], [136, 25], [105, 10], [179, 62] ],
      [ [207, 55], [192, 63], [192, 54], [195, 36], [177,  1], [143, 98] ],
      [ [225, 27], [207, 34], [200, 30], [131, 57], [ 97, 60], [197, 45] ]
    ], [
      [ [271,  8], [218, 13], [133, 19], [ 90, 19], [ 72,  7], [182, 51] ],
      [ [179,  1], [225, -1], [154, -2], [110, -1], [ 92,  0], [195, 41] ],
      [ [241, 26], [189, 40], [ 82, 64], [ 33, 60], [ 67, 17], [120, 94] ],
      [ [192, 68], [151, 94], [146, 90], [143, 72], [161,  0], [113,128] ],
      [ [256, 12], [218, 29], [166, 48], [ 44, 99], [ 31, 87], [148, 78] ]
    ], [
      [ [238, 20], [184, 22], [113, 27], [ 90, 22], [ 74,  9], [192, 37] ],
      [ [184,  0], [215, -1], [141, -1], [ 97,  0], [ 49,  0], [264, 13] ],
      [ [182, 51], [138, 61], [ 95, 63], [ 54, 59], [ 64, 25], [200, 45] ],
      [ [179, 75], [156, 87], [174, 65], [177, 44], [174,  0], [164, 85] ],
      [ [195, 45], [148, 65], [105, 79], [ 95, 72], [ 87, 60], [169, 63] ]
    ]
  ]
];
Commit	Line	Data
3584b223 KS	1	use nihav_core::codecs::*;
	2	use nihav_core::io::bitreader::*;
	3	use super::vpcommon::*;
	4	use super::vp56::*;
	5
	6	struct VP5BR {}
	7
	8	impl VP5BR {
	9	fn new() -> Self {
	10	Self {}
	11	}
	12	}
	13
	14	impl VP56Parser for VP5BR {
	15	fn parse_header(&mut self, bc: &mut BoolCoder) -> DecoderResult<VP56Header> {
	16	let mut hdr = VP56Header::default();
	17	hdr.is_intra = !bc.read_bool();
	18	hdr.is_golden = hdr.is_intra;
	19	bc.read_bool();
	20	hdr.quant = bc.read_bits(6) as u8;
	21	if hdr.is_intra {
	22	hdr.version = bc.read_bits(13) as u8;
	23	validate!(hdr.version == 5);
	24	hdr.profile = bc.read_bits(2) as u8;
	25	hdr.interlaced = bc.read_bool();
	26	validate!(!hdr.interlaced);
	27	hdr.mb_h = bc.read_bits(8) as u8;
	28	hdr.mb_w = bc.read_bits(8) as u8;
	29	hdr.disp_h = bc.read_bits(8) as u8;
	30	hdr.disp_w = bc.read_bits(8) as u8;
	31	validate!((hdr.mb_h > 0) && (hdr.mb_w > 0) && (hdr.disp_w > 0) && (hdr.disp_h > 0));
	32	validate!((hdr.disp_w <= hdr.mb_w) && (hdr.disp_h <= hdr.mb_h));
	33	hdr.scale = bc.read_bits(2) as u8;
	34	}
	35
	36	Ok(hdr)
	37	}
	38	fn decode_mv(&self, bc: &mut BoolCoder, model: &VP56MVModel) -> i16 {
	39	if bc.read_prob(model.nz_prob) {
	40	let sign = bc.read_prob(model.sign_prob);
	41	let b0 = bc.read_prob(model.raw_probs[0]) as i16;
	42	let b1 = bc.read_prob(model.raw_probs[1]) as i16;
	43	let top: i16 = vp_tree!(bc, model.tree_probs[0],
	44	vp_tree!(bc, model.tree_probs[1],
	45	vp_tree!(bc, model.tree_probs[2], 0, 1),
	46	vp_tree!(bc, model.tree_probs[3], 2, 3)
	47	),
	48	vp_tree!(bc, model.tree_probs[4],
	49	vp_tree!(bc, model.tree_probs[5], 4, 5),
	50	vp_tree!(bc, model.tree_probs[6], 6, 7)
	51	)
	52	);
	53	let val = (top << 2) \| (b1 << 1) \| b0;
	54	if !sign {
	55	val
	56	} else {
	57	-val
	58	}
	59	} else {
	60	0
	61	}
	62	}
	63	fn reset_models(&self, models: &mut VP56Models) {
	64	for mdl in models.mv_models.iter_mut() {
65	mdl.nz_prob = 128;
66	mdl.sign_prob = 128;
67	mdl.raw_probs[0] = 85;
68	mdl.raw_probs[1] = 128;
69	mdl.tree_probs = [128; 7];
70	}
71	}
72	fn decode_mv_models(&self, bc: &mut BoolCoder, models: &mut [VP56MVModel; 2]) -> DecoderResult<()> {
73	const HAS_NZ_PROB: [u8; 2] = [ 243, 235 ];
74	const HAS_SIGN_PROB: [u8; 2] = [ 220, 211 ];
75	const HAS_RAW0_PROB: [u8; 2] = [ 251, 246 ];
76	const HAS_RAW1_PROB: [u8; 2] = [ 253, 249 ];
77	const HAS_TREE_PROB: [[u8; 7]; 2] = [
78	[ 237, 232, 241, 245, 247, 251, 253 ],
79	[ 234, 231, 248, 249, 252, 252, 254 ]
80	];
81	for comp in 0..2 {
82	if bc.read_prob(HAS_NZ_PROB[comp]) {
83	models[comp].nz_prob = bc.read_probability();
84	}
85	if bc.read_prob(HAS_SIGN_PROB[comp]) {
86	models[comp].sign_prob = bc.read_probability();
87	}
88	if bc.read_prob(HAS_RAW0_PROB[comp]) {
89	models[comp].raw_probs[0] = bc.read_probability();
90	}
91	if bc.read_prob(HAS_RAW1_PROB[comp]) {
92	models[comp].raw_probs[1] = bc.read_probability();
93	}
94	}
95	for comp in 0..2 {
96	for i in 0..7 {
97	if bc.read_prob(HAS_TREE_PROB[comp][i]) {
98	models[comp].tree_probs[i] = bc.read_probability();
99	}
100	}
101	}
102	Ok(())
103	}
104	fn decode_coeff_models(&self, bc: &mut BoolCoder, models: &mut VP56Models, is_intra: bool) -> DecoderResult<()> {
105	const COEF_PROBS: [[u8; 11]; 2] = [
106	[ 146, 197, 181, 207, 232, 243, 238, 251, 244, 250, 249 ],
107	[ 179, 219, 214, 240, 250, 254, 244, 254, 254, 254, 254 ]
108	];
109
110	let mut def_prob = [128u8; 11];
111	for plane in 0..2 {
112	for i in 0..11 {
113	if bc.read_prob(COEF_PROBS[plane][i]) {
114	def_prob[i] = bc.read_probability();
115	models.coeff_models[plane].dc_value_probs[i] = def_prob[i];
116	} else if is_intra {
117	models.coeff_models[plane].dc_value_probs[i] = def_prob[i];
118	}
119	}
120	}
121	for ctype in 0..3 {
122	for plane in 0..2 {
123	for group in 0..6 {
124	for i in 0..11 {
125	if bc.read_prob(VP5_AC_PROBS[ctype][plane][group][i]) {
126	def_prob[i] = bc.read_probability();
127	models.coeff_models[plane].ac_val_probs[ctype][group][i] = def_prob[i];
128	} else if is_intra {
129	models.coeff_models[plane].ac_val_probs[ctype][group][i] = def_prob[i];
130	}
131	}
132	}
133	}
134	}
135	for plane in 0..2 {
136	let mdl = &mut models.coeff_models[plane];
137	for i in 0..6 {
138	for j in 0..6 {
139	for k in 0..5 {
140	mdl.dc_token_probs[i][j][k] = rescale_prob(mdl.dc_value_probs[k], &VP5_DC_WEIGHTS[k][i][j], 254);
141	}
142	}
143	}
144	for ctype in 0..3 {
145	for group in 0..3 {
146	for i in 0..6 {
147	for j in 0..5 {
148	mdl.ac_type_probs[ctype][group][i][j] = rescale_prob(mdl.ac_val_probs[ctype][group][j], &VP5_AC_WEIGHTS[ctype][group][j][i], 254);
149	}
150	}
151	}
152	}
153	}
154	Ok(())
155	}
156	fn decode_block(&self, bc: &mut BoolCoder, coeffs: &mut [i16; 64], model: &VP56CoeffModel, _vp6model: &VP6Models, fstate: &mut FrameState) -> DecoderResult<()> {
157	const COEF_GROUPS: [u8; 64] = [
158	0, 0, 1, 1, 2, 1, 1, 2,
159	2, 1, 1, 2, 2, 2, 1, 2,
160	2, 2, 2, 2, 1, 1, 2, 2,
161	3, 3, 4, 3, 4, 4, 4, 3,
162	3, 3, 3, 3, 4, 3, 3, 3,
163	4, 4, 4, 4, 4, 3, 3, 4,
164	4, 4, 3, 4, 4, 4, 4, 4,
165	4, 4, 5, 5, 5, 5, 5, 5
166	];
167
168	let mut ctype = 1;
169	let left_ctx = fstate.coeff_cat[fstate.ctx_idx][0] as usize;
170	let top_ctx = fstate.top_ctx as usize;
171
172	let mut val_probs: &[u8; 11] = &model.dc_value_probs;
173	let mut tok_probs: &[u8] = &model.dc_token_probs[left_ctx][top_ctx];
174	let mut idx = 0;
175	loop {
176	let token = vp_tree!(bc, tok_probs[0],
177	if ctype != 0 { vp_tree!(bc, tok_probs[1], break, 0) } else { 0 },
178	vp_tree!(bc, tok_probs[2],
179	1,
180	vp_tree!(bc, tok_probs[3],
181	vp_tree!(bc, tok_probs[4], 2,
182	vp_tree!(bc, val_probs[5], 3, 4)),
183	TOKEN_LARGE)));
184	let val = expand_token_bc(bc, val_probs, token, 5);
185	ctype = token.min(2) as usize;
186	if token < TOKEN_LARGE {
187	fstate.coeff_cat[fstate.ctx_idx][idx] = token.min(3);
188	} else {
189	fstate.coeff_cat[fstate.ctx_idx][idx] = 4;
190	}
191	coeffs[ZIGZAG[idx]] = val;
192	if idx > 0 {
193	coeffs[ZIGZAG[idx]] *= fstate.ac_quant;
194	}
195
196	idx += 1;
197	if idx >= 64 {
198	break;
199	}
200	let group = COEF_GROUPS[idx] as usize;
201	val_probs = &model.ac_val_probs[ctype][group];
202	tok_probs = if group > 2 { val_probs
203	} else {
204	let ctx = fstate.coeff_cat[fstate.ctx_idx][idx] as usize;
205	&model.ac_type_probs[ctype][group][ctx]
206	};
207	}
208	let end = fstate.last_idx[fstate.ctx_idx].min(24);
209	fstate.last_idx[fstate.ctx_idx] = idx;
210	for i in idx..end {
211	fstate.coeff_cat[fstate.ctx_idx][i] = 5;
212	}
213	fstate.top_ctx = fstate.coeff_cat[fstate.ctx_idx][0];
214
215	Ok(())
216	}
217	fn decode_block_huff(&self, _br: &mut BitReader, _coeffs: &mut [i16; 64], _vp6model: &VP6Models, _model: &VP6HuffModels, _fstate: &mut FrameState) -> DecoderResult<()> {
218	unreachable!();
219	}
220	fn mc_block(&self, dst: &mut NASimpleVideoFrame<u8>, mc_buf: NAVideoBufferRef<u8>, src: NAVideoBufferRef<u8>, plane: usize, x: usize, y: usize, mv: MV, loop_str: i16) {
221	let (sx, sy, mx, my) = if (plane != 1) && (plane != 2) {
ab5baaf1	222	(mv.x >> 1, mv.y >> 1, mv.x & 1, mv.y & 1)
3584b223	223	} else {
6d3946fe	224	(mv.x >> 2, mv.y >> 2, if (mv.x & 3) != 0 { 1 } else { 0 }, if (mv.y & 3) != 0 { 1 } else { 0 })
ab5baaf1 KS	225	};
	226	let mode1 = (mx as usize) + (my as usize) * 2;
	227	let mode = if (mode1 == 3) && (mv.x ^ mv.y < 0) {
	228	4
	229	} else {
	230	mode1
3584b223	231	};
3584b223 KS	232	vp_copy_block(dst, src, plane, x, y, sx, sy, 0, 1, loop_str,
	233	mode, VP3_INTERP_FUNCS, mc_buf);
	234	}
	235	}
	236
	237	struct VP5Decoder {
	238	dec: VP56Decoder,
	239	info: NACodecInfoRef,
	240	br: VP5BR,
	241	}
	242
	243	impl VP5Decoder {
	244	fn new() -> Self {
	245	Self {
	246	dec: VP56Decoder::new(5, false, true),
	247	info: NACodecInfoRef::default(),
	248	br: VP5BR::new(),
	249	}
	250	}
	251	}
	252
	253	impl NADecoder for VP5Decoder {
	254	fn init(&mut self, supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> {
	255	if let NACodecTypeInfo::Video(vinfo) = info.get_properties() {
	256	let myvinfo = NAVideoInfo::new(vinfo.get_width(), vinfo.get_height(), false, YUV420_FORMAT);
	257	let myinfo = NACodecTypeInfo::Video(myvinfo.clone());
	258	self.info = NACodecInfo::new_ref(info.get_name(), myinfo, info.get_extradata()).into_ref();
	259	self.dec.init(supp, myvinfo)?;
	260	Ok(())
	261	} else {
	262	Err(DecoderError::InvalidData)
	263	}
	264	}
	265	fn decode(&mut self, supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> {
	266	let src = pkt.get_buffer();
	267
	268	let (bufinfo, ftype) = self.dec.decode_frame(supp, src.as_slice(), &mut self.br)?;
	269
	270	let mut frm = NAFrame::new_from_pkt(pkt, self.info.clone(), bufinfo);
	271	frm.set_keyframe(ftype == FrameType::I);
	272	frm.set_frame_type(ftype);
	273	Ok(frm.into_ref())
	274	}
f9be4e75 KS	275	fn flush(&mut self) {
	276	self.dec.flush();
	277	}
3584b223 KS	278	}
3584b223 KS	279
08a1fab7	280	pub fn get_decoder() -> Box<NADecoder + Send> {
3584b223 KS	281	Box::new(VP5Decoder::new())
	282	}
	283
	284	#[cfg(test)]
	285	mod test {
	286	use nihav_core::codecs::RegisteredDecoders;
	287	use nihav_core::demuxers::RegisteredDemuxers;
	288	use nihav_core::test::dec_video::*;
	289	use crate::codecs::duck_register_all_codecs;
	290	use nihav_commonfmt::demuxers::generic_register_all_demuxers;
	291
	292	#[test]
	293	fn test_vp5() {
	294	let mut dmx_reg = RegisteredDemuxers::new();
	295	generic_register_all_demuxers(&mut dmx_reg);
	296	let mut dec_reg = RegisteredDecoders::new();
	297	duck_register_all_codecs(&mut dec_reg);
	298
	299	let file = "assets/Duck/Cell-140.vp5";
	300	//let file = "assets/Duck/Chocolat-500.vp5";
d5e94eaf KS	301	test_decoding("avi", "vp5", file, Some(96), &dmx_reg, &dec_reg,
d5e94eaf KS	302	ExpectedTestResult::MD5([0x9ad78b0f, 0xed988ead, 0x88ed2ea9, 0xcdb75cdf]));
3584b223 KS	303	}
	304	}
	305
	306	const VP5_AC_PROBS: [[[[u8; 11]; 6]; 2]; 3] = [
	307	[
	308	[
	309	[ 227, 246, 230, 247, 244, 254, 254, 254, 254, 254, 254 ],
	310	[ 202, 254, 209, 231, 231, 249, 249, 253, 254, 254, 254 ],
	311	[ 206, 254, 225, 242, 241, 251, 253, 254, 254, 254, 254 ],
	312	[ 235, 254, 241, 253, 252, 254, 254, 254, 254, 254, 254 ],
	313	[ 234, 254, 248, 254, 254, 254, 254, 254, 254, 254, 254 ],
	314	[ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ]
	315	], [
	316	[ 240, 254, 248, 254, 254, 254, 254, 254, 254, 254, 254 ],
	317	[ 238, 254, 240, 253, 254, 254, 254, 254, 254, 254, 254 ],
	318	[ 244, 254, 251, 254, 254, 254, 254, 254, 254, 254, 254 ],
	319	[ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ],
	320	[ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ],
	321	[ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ]
	322	]
	323	], [
	324	[
	325	[ 206, 203, 227, 239, 247, 254, 253, 254, 254, 254, 254 ],
	326	[ 207, 199, 220, 236, 243, 252, 252, 254, 254, 254, 254 ],
	327	[ 212, 219, 230, 243, 244, 253, 252, 254, 254, 254, 254 ],
	328	[ 236, 237, 247, 252, 253, 254, 254, 254, 254, 254, 254 ],
	329	[ 240, 240, 248, 254, 254, 254, 254, 254, 254, 254, 254 ],
	330	[ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ]
	331	], [
	332	[ 230, 233, 249, 254, 254, 254, 254, 254, 254, 254, 254 ],
	333	[ 238, 238, 250, 254, 254, 254, 254, 254, 254, 254, 254 ],
	334	[ 248, 251, 254, 254, 254, 254, 254, 254, 254, 254, 254 ],
	335	[ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ],
	336	[ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ],
	337	[ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ]
	338	]
	339	], [
	340	[
	341	[ 225, 239, 227, 231, 244, 253, 243, 254, 254, 253, 254 ],
	342	[ 232, 234, 224, 228, 242, 249, 242, 252, 251, 251, 254 ],
	343	[ 235, 249, 238, 240, 251, 254, 249, 254, 253, 253, 254 ],
	344	[ 249, 253, 251, 250, 254, 254, 254, 254, 254, 254, 254 ],
	345	[ 251, 250, 249, 254, 254, 254, 254, 254, 254, 254, 254 ],
	346	[ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ]
	347	], [
	348	[ 243, 244, 250, 250, 254, 254, 254, 254, 254, 254, 254 ],
	349	[ 249, 248, 250, 253, 254, 254, 254, 254, 254, 254, 254 ],
	350	[ 253, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ],
	351	[ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ],
	352	[ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ],
	353	[ 254, 254, 254, 254, 254, 254, 254, 254, 254, 254, 254 ]
	354	]
	355	]
	356	];
	357
	358	const VP5_DC_WEIGHTS: [[[[i16; 2]; 6]; 6]; 5] = [
	359	[
	360	[ [154, 61], [141, 54], [ 90, 45], [ 54, 34], [ 54, 13], [128, 109] ],
	361	[ [136, 54], [148, 45], [ 92, 41], [ 54, 33], [ 51, 15], [ 87, 113] ],
	362	[ [ 87, 44], [ 97, 40], [ 67, 36], [ 46, 29], [ 41, 15], [ 64, 80] ],
	363	[ [ 59, 33], [ 61, 31], [ 51, 28], [ 44, 22], [ 33, 12], [ 49, 63] ],
	364	[ [ 69, 12], [ 59, 16], [ 46, 14], [ 31, 13], [ 26, 6], [ 92, 26] ],
	365	[ [128, 108], [ 77, 119], [ 54, 84], [ 26, 71], [ 87, 19], [ 95, 155] ]
	366	], [
367	[ [154, 4], [182, 0], [159, -8], [128, -5], [143, -5], [187, 55] ],
368	[ [182, 0], [228, -3], [187, -7], [174, -9], [189, -11], [169, 79] ],
369	[ [161, -9], [192, -8], [187, -9], [169, -10], [136, -9], [184, 40] ],
370	[ [164, -11], [179, -10], [174, -10], [161, -10], [115, -7], [197, 20] ],
371	[ [195, -11], [195, -11], [146, -10], [110, -6], [ 95, -4], [195, 39] ],
372	[ [182, 55], [172, 77], [177, 37], [169, 29], [172, 52], [ 92, 162] ]
373	], [
374	[ [174, 80], [164, 80], [ 95, 80], [ 46, 66], [ 56, 24], [ 36, 193] ],
375	[ [164, 80], [166, 77], [105, 76], [ 49, 68], [ 46, 31], [ 49, 186] ],
376	[ [ 97, 78], [110, 74], [ 72, 72], [ 44, 60], [ 33, 30], [ 69, 131] ],
377	[ [ 61, 61], [ 69, 63], [ 51, 57], [ 31, 48], [ 26, 27], [ 64, 89] ],
378	[ [ 67, 23], [ 51, 32], [ 36, 33], [ 26, 28], [ 20, 12], [ 44, 68] ],
379	[ [ 26, 197], [ 41, 189], [ 61, 129], [ 28, 103], [ 49, 52], [-12, 245] ]
380	], [
381	[ [102, 141], [ 79, 166], [ 72, 162], [ 97, 125], [179, 4], [307, 0] ],
382	[ [ 72, 168], [ 69, 175], [ 84, 160], [105, 127], [148, 34], [310, 0] ],
383	[ [ 84, 151], [ 82, 161], [ 87, 153], [ 87, 135], [115, 51], [317, 0] ],
384	[ [ 97, 125], [102, 131], [105, 125], [ 87, 122], [ 84, 64], [ 54, 184] ],
385	[ [166, 18], [146, 43], [125, 51], [ 90, 64], [ 95, 7], [ 38, 154] ],
386	[ [294, 0], [ 13, 225], [ 10, 225], [ 67, 168], [ 0, 167], [161, 94] ]
387	], [
388	[ [172, 76], [172, 75], [136, 80], [ 64, 98], [ 74, 67], [315, 0] ],
389	[ [169, 76], [207, 56], [164, 66], [ 97, 80], [ 67, 72], [328, 0] ],
390	[ [136, 80], [187, 53], [154, 62], [ 72, 85], [ -2, 105], [305, 0] ],
391	[ [ 74, 91], [128, 64], [113, 64], [ 61, 77], [ 41, 75], [259, 0] ],
392	[ [ 46, 84], [ 51, 81], [ 28, 89], [ 31, 78], [ 23, 77], [202, 0] ],
393	[ [323, 0], [323, 0], [300, 0], [236, 0], [195, 0], [328, 0] ]
394	]
395	];
396
397	const VP5_AC_WEIGHTS: [[[[[i16; 2]; 6]; 5]; 3]; 3] = [
398	[
399	[
400	[ [276, 0], [238, 0], [195, 0], [156, 0], [113, 0], [274, 0] ],
401	[ [ 0, 1], [ 0, 1], [ 0, 1], [ 0, 1], [ 0, 1], [ 0, 1] ],
402	[ [192, 59], [182, 50], [141, 48], [110, 40], [ 92, 19], [125,128] ],
403	[ [169, 87], [169, 83], [184, 62], [220, 16], [184, 0], [264, 0] ],
404	[ [212, 40], [212, 36], [169, 49], [174, 27], [ 8,120], [182, 71] ]
405	], [
406	[ [259, 10], [197, 19], [143, 22], [123, 16], [110, 8], [133, 88] ],
407	[ [ 0, 1], [256, 0], [ 0, 1], [ 0, 1], [ 0, 1], [ 0, 1] ],
408	[ [207, 46], [187, 50], [ 97, 83], [ 23,100], [ 41, 56], [ 56,188] ],
409	[ [166, 90], [146,108], [161, 88], [136, 95], [174, 0], [266, 0] ],
410	[ [264, 7], [243, 18], [184, 43], [-14,154], [ 20,112], [ 20,199] ]
411	], [
412	[ [230, 26], [197, 22], [159, 20], [146, 12], [136, 4], [ 54,162] ],
413	[ [ 0, 1], [ 0, 1], [ 0, 1], [ 0, 1], [ 0, 1], [ 0, 1] ],
414	[ [192, 59], [156, 72], [ 84,101], [ 49,101], [ 79, 47], [ 79,167] ],
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