nihav-codec-support/src/codecs/h263/data.rs

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