nihav-core/src/codecs/h263/data.rs

   1 use crate::io::codebook::CodebookDescReader;
   2
   3 #[allow(dead_code)]
   4 pub const H263_SCALES: &[u8] = &[
   5     0, 1, 2, 3, 4, 5, 6, 6, 7, 8, 9, 9, 10, 10, 11, 11, 12, 12, 12, 13, 13, 13, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15 ];
   6
   7 #[allow(dead_code)]
   8 pub const H263_DC_SCALES: &[u8] = &[
   9     0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62 ];
  10
  11 pub const H263_ZIGZAG: &[usize] = &[
  12     0,   1,  8, 16,  9,  2,  3, 10,
  13     17, 24, 32, 25, 18, 11,  4,  5,
  14     12, 19, 26, 33, 40, 48, 41, 34,
  15     27, 20, 13,  6,  7, 14, 21, 28,
  16     35, 42, 49, 56, 57, 50, 43, 36,
  17     29, 22, 15, 23, 30, 37, 44, 51,
  18     58, 59, 52, 45, 38, 31, 39, 46,
  19     53, 60, 61, 54, 47, 55, 62, 63
  20 ];
  21
  22 pub const H263_SCAN_H: &[usize] = &[
  23     0,   1,  2,  3,  8,  9, 16, 17,
  24     10, 11,  4,  5,  6,  7, 15, 14,
  25     13, 12, 19, 18, 24, 25, 32, 33,
  26     26, 27, 20, 21, 22, 23, 28, 29,
  27     30, 31, 34, 35, 40, 41, 48, 49,
  28     42, 43, 36, 37, 38, 39, 44, 45,
  29     46, 47, 50, 51, 56, 57, 58, 59,
  30     52, 53, 54, 55, 60, 61, 62, 63
  31 ];
  32
  33 pub const H263_SCAN_V: &[usize] = &[
  34     0,   8, 16, 24,  1,  9,  2, 10,
  35     17, 25, 32, 40, 48, 56, 57, 49,
  36     41, 33, 26, 18,  3, 11,  4, 12,
  37     19, 27, 34, 42, 50, 58, 35, 43,
  38     51, 59, 20, 28,  5, 13,  6, 14,
  39     21, 29, 36, 44, 52, 60, 37, 45,
  40     53, 61, 22, 30,  7, 15, 23, 31,
  41     38, 46, 54, 62, 39, 47, 55, 63
  42 ];
  43
  44 pub const H263_SIZES: &[(usize, usize)] = &[
  45     (0, 0), (128, 96), (176, 144), (352, 288), (704, 576), (1408, 1152)
  46 ];
  47
  48 pub const H263_INTRA_MCBPC: &[(u8, u8)] = &[
  49     (1, 1), (1, 3), (2, 3), (3, 3), (1, 4), (1, 6), (2, 6), (3, 6), (1, 9)
  50 ];
  51
  52 pub const H263_INTER_MCBPC: &[(u8, u8)] = &[
  53     (1, 1), (3, 4), (2, 4), (5, 6), (3, 5), (4, 8), (3, 8), (3, 7),
  54     (3, 3), (7, 7), (6, 7), (5, 9), (4, 6), (4, 9), (3, 9), (2, 9),
  55     (2, 3), (5, 7), (4, 7), (5, 8), (1, 9), (0, 0), (0, 0), (0, 0),
  56     (2, 11), (12, 13), (14, 13), (15, 13)
  57 ];
  58
  59 pub const H263_CBPY: &[(u8, u8)] = &[
  60     ( 3, 4), ( 5, 5), ( 4, 5), ( 9, 4), ( 3, 5), ( 7, 4), ( 2, 6), (11, 4),
  61     ( 2, 5), ( 3, 6), ( 5, 4), (10, 4), ( 4, 4), ( 8, 4), ( 6, 4), ( 3, 2)
  62 ];
  63
  64 pub const H263_MV: &[(u8, u8)] = &[
  65     ( 1,  1), ( 1,  2), ( 1,  3), ( 1,  4), ( 3,  6), ( 5,  7), ( 4,  7), ( 3,  7),
  66     (11,  9), (10,  9), ( 9,  9), (17, 10), (16, 10), (15, 10), (14, 10), (13, 10),
  67     (12, 10), (11, 10), (10, 10), ( 9, 10), ( 8, 10), ( 7, 10), ( 6, 10), ( 5, 10),
  68     ( 4, 10), ( 7, 11), ( 6, 11), ( 5, 11), ( 4, 11), ( 3, 11), ( 2, 11), ( 3, 12),
  69     ( 2, 12)
  70 ];
  71
  72 pub const H263_MBTYPE_B: &[(u8, u8)] = &[
  73     (1,  1), (3,  3), (1,  5), (4,  4), (5,  4), (6,  6), (2,  4), (3,  4),
  74     (7,  6), (4,  6), (5,  6), (1,  6), (1,  7), (1,  8), (1, 10)
  75 ];
  76
  77 // 0x1 - direct, 0x2 - has quant, 0x4 - has CBP, 0x8 - has dquant, 0x10 - has fwd, 0x20 - has bwd, 0x40 - intra
  78
  79 pub const H263_MBB_CAP_CODED:    u8 = 0x2;
  80 pub const H263_MBB_CAP_DQUANT:   u8 = 0x4;
  81 pub const H263_MBB_CAP_FORWARD:  u8 = 0x10;
  82 pub const H263_MBB_CAP_BACKWARD: u8 = 0x20;
  83 pub const H263_MBB_CAP_INTRA:    u8 = 0x80;
  84
  85 pub const H263_MBTYPE_B_CAPS: &[u8] = &[
  86     0x00, 0x02, 0x06, // skipped, direct, direct+dq
  87     0x10, 0x12, 0x16, // forward, coded forward, forward+dq
  88     0x20, 0x22, 0x26, // backward, coded backward, backward+dq
  89     0x30, 0x32, 0x36, // bidir, coded bidir, bidir+dq
  90           0x82, 0x86  // intra, intra+dq
  91 ];
  92
  93 pub const H263_CBPC_B: &[(u8, u8)] = &[
  94     (0, 1), (2, 2), (7, 3), (6, 3)
  95 ];
  96
  97 pub const H263_DQUANT_TAB: &[i8] = &[-1, -2, 1, 2];
  98
  99 pub const H263_MODIFIED_QUANT: [[u8; 32]; 2] = [
 100   [
 101      0,  3,  1,  2,  3,  4,  5,  6,  7,  8,  9,  9, 10, 11, 12, 13,
 102     14, 15, 16, 17, 18, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28
 103   ], [
 104      0,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 13, 14, 15, 16, 17,
 105     18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 29, 30, 31, 31, 31, 26
 106   ]
 107 ];
 108
 109 pub const H263_CHROMA_QUANT: [u8; 32] = [
 110      0,  1,  2,  3,  4,  5,  6,  6,  7,  8,  9,  9, 10, 10, 11, 11,
 111     12, 12, 12, 13, 13, 13, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15
 112 ];
 113
 114 pub struct H263ShortCodeReader { tab: &'static [(u8, u8)] }
 115
 116 impl H263ShortCodeReader {
 117     pub fn new(tab: &'static [(u8, u8)]) -> Self { H263ShortCodeReader { tab: tab } }
 118 }
 119
 120 impl CodebookDescReader<u8> for H263ShortCodeReader {
 121     fn bits(&mut self, idx: usize) -> u8  { let (_, bits) = self.tab[idx]; bits }
 122     fn code(&mut self, idx: usize) -> u32 { let (code, _) = self.tab[idx]; code as u32 }
 123     fn sym (&mut self, idx: usize) -> u8 { idx as u8 }
 124     fn len(&mut self) -> usize { self.tab.len() }
 125 }
 126
 127 #[derive(Clone,Copy)]
 128 pub struct H263RLSym { run: u8, level: i8 }
 129 impl H263RLSym {
 130     pub fn get_run(&self)   -> u8 { self.run }
 131     pub fn is_last(&self)   -> bool { self.level < 0 }
 132     pub fn is_escape(&self) -> bool { (self.run == 0) && (self.level == 0) }
 133     pub fn get_level(&self) -> i16 { if self.level < 0 { -self.level as i16 } else { self.level as i16 } }
 134 }
 135
 136 pub struct H263RLCodeDesc { code: u8, bits: u8, sym: H263RLSym }
 137
 138 macro_rules! rlcodes{
 139     ($(($c:expr, $b:expr, $r:expr, $l:expr)),*) => {
 140         &[$(H263RLCodeDesc{ code: $c, bits: $b, sym: H263RLSym{ run: $r, level: $l }}),*]
 141     }
 142 }
 143
 144 pub const H263_RL_CODES: &[H263RLCodeDesc] = rlcodes!(
 145     (0x02,  2,  0,  1), (0x0F,  4,  0,  2), (0x15,  6,  0,  3), (0x17,  7,  0,  4),
 146     (0x1F,  8,  0,  5), (0x25,  9,  0,  6), (0x24,  9,  0,  7), (0x21, 10,  0,  8),
 147     (0x20, 10,  0,  9), (0x07, 11,  0, 10), (0x06, 11,  0, 11), (0x20, 11,  0, 12),
 148     (0x06,  3,  1,  1), (0x14,  6,  1,  2), (0x1E,  8,  1,  3), (0x0F, 10,  1,  4),
 149     (0x21, 11,  1,  5), (0x50, 12,  1,  6), (0x0E,  4,  2,  1), (0x1D,  8,  2,  2),
 150     (0x0E, 10,  2,  3), (0x51, 12,  2,  4), (0x0D,  5,  3,  1), (0x23,  9,  3,  2),
 151     (0x0D, 10,  3,  3), (0x0C,  5,  4,  1), (0x22,  9,  4,  2), (0x52, 12,  4,  3),
 152     (0x0B,  5,  5,  1), (0x0C, 10,  5,  2), (0x53, 12,  5,  3), (0x13,  6,  6,  1),
 153     (0x0B, 10,  6,  2), (0x54, 12,  6,  3), (0x12,  6,  7,  1), (0x0A, 10,  7,  2),
 154     (0x11,  6,  8,  1), (0x09, 10,  8,  2), (0x10,  6,  9,  1), (0x08, 10,  9,  2),
 155     (0x16,  7, 10,  1), (0x55, 12, 10,  2), (0x15,  7, 11,  1), (0x14,  7, 12,  1),
 156     (0x1C,  8, 13,  1), (0x1B,  8, 14,  1), (0x21,  9, 15,  1), (0x20,  9, 16,  1),
 157     (0x1F,  9, 17,  1), (0x1E,  9, 18,  1), (0x1D,  9, 19,  1), (0x1C,  9, 20,  1),
 158     (0x1B,  9, 21,  1), (0x1A,  9, 22,  1), (0x22, 11, 23,  1), (0x23, 11, 24,  1),
 159     (0x56, 12, 25,  1), (0x57, 12, 26,  1), (0x07,  4,  0, -1), (0x19,  9,  0, -2),
 160     (0x05, 11,  0, -3), (0x0F,  6,  1, -1), (0x04, 11,  1, -2), (0x0E,  6,  2, -1),
 161     (0x0D,  6,  3, -1), (0x0C,  6,  4, -1), (0x13,  7,  5, -1), (0x12,  7,  6, -1),
 162     (0x11,  7,  7, -1), (0x10,  7,  8, -1), (0x1A,  8,  9, -1), (0x19,  8, 10, -1),
 163     (0x18,  8, 11, -1), (0x17,  8, 12, -1), (0x16,  8, 13, -1), (0x15,  8, 14, -1),
 164     (0x14,  8, 15, -1), (0x13,  8, 16, -1), (0x18,  9, 17, -1), (0x17,  9, 18, -1),
 165     (0x16,  9, 19, -1), (0x15,  9, 20, -1), (0x14,  9, 21, -1), (0x13,  9, 22, -1),
 166     (0x12,  9, 23, -1), (0x11,  9, 24, -1), (0x07, 10, 25, -1), (0x06, 10, 26, -1),
 167     (0x05, 10, 27, -1), (0x04, 10, 28, -1), (0x24, 11, 29, -1), (0x25, 11, 30, -1),
 168     (0x26, 11, 31, -1), (0x27, 11, 32, -1), (0x58, 12, 33, -1), (0x59, 12, 34, -1),
 169     (0x5A, 12, 35, -1), (0x5B, 12, 36, -1), (0x5C, 12, 37, -1), (0x5D, 12, 38, -1),
 170     (0x5E, 12, 39, -1), (0x5F, 12, 40, -1), (0x03,  7,  0,  0)
 171 );
 172
 173 pub const H263_RL_CODES_AIC: &[H263RLCodeDesc] = rlcodes!(
 174     (0x02,  2,  0,  1), (0x06,  3,  0,  2), (0x0E,  4,  0,  3), (0x0C,  5,  0,  4),
 175     (0x0D,  5,  0,  5), (0x10,  6,  0,  6), (0x11,  6,  0,  7), (0x12,  6,  0,  8),
 176     (0x16,  7,  0,  9), (0x1B,  8,  0, 10), (0x20,  9,  0, 11), (0x21,  9,  0, 12),
 177     (0x1A,  9,  0, 13), (0x1B,  9,  0, 14), (0x1C,  9,  0, 15), (0x1D,  9,  0, 16),
 178     (0x1E,  9,  0, 17), (0x1F,  9,  0, 18), (0x23, 11,  0, 19), (0x22, 11,  0, 20),
 179     (0x57, 12,  0, 21), (0x56, 12,  0, 22), (0x55, 12,  0, 23), (0x54, 12,  0, 24),
 180     (0x53, 12,  0, 25), (0x0F,  4,  1,  1), (0x14,  6,  1,  2), (0x14,  7,  1,  3),
 181     (0x1E,  8,  1,  4), (0x0F, 10,  1,  5), (0x21, 11,  1,  6), (0x50, 12,  1,  7),
 182     (0x0B,  5,  2,  1), (0x15,  7,  2,  2), (0x0E, 10,  2,  3), (0x09, 10,  2,  4),
 183     (0x15,  6,  3,  1), (0x1D,  8,  3,  2), (0x0D, 10,  3,  3), (0x51, 12,  3,  4),
 184     (0x13,  6,  4,  1), (0x23,  9,  4,  2), (0x07, 11,  4,  3), (0x17,  7,  5,  1),
 185     (0x22,  9,  5,  2), (0x52, 12,  5,  3), (0x1C,  8,  6,  1), (0x0C, 10,  6,  2),
 186     (0x1F,  8,  7,  1), (0x0B, 10,  7,  2), (0x25,  9,  8,  1), (0x0A, 10,  8,  2),
 187     (0x24,  9,  9,  1), (0x06, 11,  9,  2), (0x21, 10, 10,  1), (0x20, 10, 11,  1),
 188     (0x08, 10, 12,  1), (0x20, 11, 13,  1), (0x07,  4,  0, -1), (0x0C,  6,  0, -2),
 189     (0x10,  7,  0, -3), (0x13,  8,  0, -4), (0x11,  9,  0, -5), (0x12,  9,  0, -6),
 190     (0x04, 10,  0, -7), (0x27, 11,  0, -8), (0x26, 11,  0, -9), (0x5F, 12,  0,-10),
 191     (0x0F,  6,  1, -1), (0x13,  9,  1, -2), (0x05, 10,  1, -3), (0x25, 11,  1, -4),
 192     (0x0E,  6,  2, -1), (0x14,  9,  2, -2), (0x24, 11,  2, -3), (0x0D,  6,  3, -1),
 193     (0x06, 10,  3, -2), (0x5E, 12,  3, -3), (0x11,  7,  4, -1), (0x07, 10,  4, -2),
 194     (0x13,  7,  5, -1), (0x5D, 12,  5, -2), (0x12,  7,  6, -1), (0x5C, 12,  6, -2),
 195     (0x14,  8,  7, -1), (0x5B, 12,  7, -2), (0x15,  8,  8, -1), (0x1A,  8,  9, -1),
 196     (0x19,  8, 10, -1), (0x18,  8, 11, -1), (0x17,  8, 12, -1), (0x16,  8, 13, -1),
 197     (0x19,  9, 14, -1), (0x15,  9, 15, -1), (0x16,  9, 16, -1), (0x18,  9, 17, -1),
 198     (0x17,  9, 18, -1), (0x04, 11, 19, -1), (0x05, 11, 20, -1), (0x58, 12, 21, -1),
 199     (0x59, 12, 22, -1), (0x5A, 12, 23, -1), (0x03,  7,  0,  0)
 200 );
 201
 202 pub struct H263RLCodeReader { tab: &'static [H263RLCodeDesc] }
 203
 204 impl H263RLCodeReader {
 205     pub fn new(tab: &'static [H263RLCodeDesc]) -> Self { H263RLCodeReader { tab: tab } }
 206 }
 207
 208 impl CodebookDescReader<H263RLSym> for H263RLCodeReader {
 209     fn bits(&mut self, idx: usize) -> u8  { self.tab[idx].bits }
 210     fn code(&mut self, idx: usize) -> u32 { self.tab[idx].code as u32 }
 211     fn sym (&mut self, idx: usize) -> H263RLSym { self.tab[idx].sym }
 212     fn len(&mut self) -> usize { self.tab.len() }
 213 }
 214