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 pub const H263_CHROMA_ROUND: [i16; 16] = [ 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1 ];
  67
  68 // 0x1 - direct, 0x2 - has quant, 0x4 - has CBP, 0x8 - has dquant, 0x10 - has fwd, 0x20 - has bwd, 0x40 - intra
  69
  70 pub const H263_MBB_CAP_CODED:    u8 = 0x2;
  71 pub const H263_MBB_CAP_DQUANT:   u8 = 0x4;
  72 pub const H263_MBB_CAP_FORWARD:  u8 = 0x10;
  73 pub const H263_MBB_CAP_BACKWARD: u8 = 0x20;
  74 pub const H263_MBB_CAP_INTRA:    u8 = 0x80;
  75
  76 pub const H263_MBTYPE_B_CAPS: &[u8] = &[
  77     0x00, 0x02, 0x06, // skipped, direct, direct+dq
  78     0x10, 0x12, 0x16, // forward, coded forward, forward+dq
  79     0x20, 0x22, 0x26, // backward, coded backward, backward+dq
  80     0x30, 0x32, 0x36, // bidir, coded bidir, bidir+dq
  81           0x82, 0x86  // intra, intra+dq
  82 ];
  83
  84 pub const H263_CBPC_B: &[(u8, u8)] = &[
  85     (0, 1), (2, 2), (7, 3), (6, 3)
  86 ];
  87
  88 pub const H263_DQUANT_TAB: &[i8] = &[-1, -2, 1, 2];
  89
  90 pub const H263_MODIFIED_QUANT: [[u8; 32]; 2] = [
  91   [
  92      0,  3,  1,  2,  3,  4,  5,  6,  7,  8,  9,  9, 10, 11, 12, 13,
  93     14, 15, 16, 17, 18, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28
  94   ], [
  95      0,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 13, 14, 15, 16, 17,
  96     18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 29, 30, 31, 31, 31, 26
  97   ]
  98 ];
  99
 100 pub const H263_CHROMA_QUANT: [u8; 32] = [
 101      0,  1,  2,  3,  4,  5,  6,  6,  7,  8,  9,  9, 10, 10, 11, 11,
 102     12, 12, 12, 13, 13, 13, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15
 103 ];
 104
 105 pub struct H263ShortCodeReader { tab: &'static [(u8, u8)] }
 106
 107 impl H263ShortCodeReader {
 108     pub fn new(tab: &'static [(u8, u8)]) -> Self { H263ShortCodeReader { tab } }
 109 }
 110
 111 impl CodebookDescReader<u8> for H263ShortCodeReader {
 112     fn bits(&mut self, idx: usize) -> u8  { let (_, bits) = self.tab[idx]; bits }
 113     fn code(&mut self, idx: usize) -> u32 { let (code, _) = self.tab[idx]; code as u32 }
 114     fn sym (&mut self, idx: usize) -> u8 { idx as u8 }
 115     fn len(&mut self) -> usize { self.tab.len() }
 116 }
 117
 118 #[derive(Clone,Copy)]
 119 pub struct H263RLSym { run: u8, level: i8 }
 120 impl H263RLSym {
 121     pub fn get_run(self)   -> u8 { self.run }
 122     pub fn is_last(self)   -> bool { self.level < 0 }
 123     pub fn is_escape(self) -> bool { (self.run == 0) && (self.level == 0) }
 124     pub fn get_level(self) -> i16 { if self.level < 0 { -self.level as i16 } else { self.level as i16 } }
 125 }
 126
 127 pub struct H263RLCodeDesc { code: u8, bits: u8, sym: H263RLSym }
 128
 129 macro_rules! rlcodes{
 130     ($(($c:expr, $b:expr, $r:expr, $l:expr)),*) => {
 131         &[$(H263RLCodeDesc{ code: $c, bits: $b, sym: H263RLSym{ run: $r, level: $l }}),*]
 132     }
 133 }
 134
 135 pub const H263_RL_CODES: &[H263RLCodeDesc] = rlcodes!(
 136     (0x02,  2,  0,  1), (0x0F,  4,  0,  2), (0x15,  6,  0,  3), (0x17,  7,  0,  4),
 137     (0x1F,  8,  0,  5), (0x25,  9,  0,  6), (0x24,  9,  0,  7), (0x21, 10,  0,  8),
 138     (0x20, 10,  0,  9), (0x07, 11,  0, 10), (0x06, 11,  0, 11), (0x20, 11,  0, 12),
 139     (0x06,  3,  1,  1), (0x14,  6,  1,  2), (0x1E,  8,  1,  3), (0x0F, 10,  1,  4),
 140     (0x21, 11,  1,  5), (0x50, 12,  1,  6), (0x0E,  4,  2,  1), (0x1D,  8,  2,  2),
 141     (0x0E, 10,  2,  3), (0x51, 12,  2,  4), (0x0D,  5,  3,  1), (0x23,  9,  3,  2),
 142     (0x0D, 10,  3,  3), (0x0C,  5,  4,  1), (0x22,  9,  4,  2), (0x52, 12,  4,  3),
 143     (0x0B,  5,  5,  1), (0x0C, 10,  5,  2), (0x53, 12,  5,  3), (0x13,  6,  6,  1),
 144     (0x0B, 10,  6,  2), (0x54, 12,  6,  3), (0x12,  6,  7,  1), (0x0A, 10,  7,  2),
 145     (0x11,  6,  8,  1), (0x09, 10,  8,  2), (0x10,  6,  9,  1), (0x08, 10,  9,  2),
 146     (0x16,  7, 10,  1), (0x55, 12, 10,  2), (0x15,  7, 11,  1), (0x14,  7, 12,  1),
 147     (0x1C,  8, 13,  1), (0x1B,  8, 14,  1), (0x21,  9, 15,  1), (0x20,  9, 16,  1),
 148     (0x1F,  9, 17,  1), (0x1E,  9, 18,  1), (0x1D,  9, 19,  1), (0x1C,  9, 20,  1),
 149     (0x1B,  9, 21,  1), (0x1A,  9, 22,  1), (0x22, 11, 23,  1), (0x23, 11, 24,  1),
 150     (0x56, 12, 25,  1), (0x57, 12, 26,  1), (0x07,  4,  0, -1), (0x19,  9,  0, -2),
 151     (0x05, 11,  0, -3), (0x0F,  6,  1, -1), (0x04, 11,  1, -2), (0x0E,  6,  2, -1),
 152     (0x0D,  6,  3, -1), (0x0C,  6,  4, -1), (0x13,  7,  5, -1), (0x12,  7,  6, -1),
 153     (0x11,  7,  7, -1), (0x10,  7,  8, -1), (0x1A,  8,  9, -1), (0x19,  8, 10, -1),
 154     (0x18,  8, 11, -1), (0x17,  8, 12, -1), (0x16,  8, 13, -1), (0x15,  8, 14, -1),
 155     (0x14,  8, 15, -1), (0x13,  8, 16, -1), (0x18,  9, 17, -1), (0x17,  9, 18, -1),
 156     (0x16,  9, 19, -1), (0x15,  9, 20, -1), (0x14,  9, 21, -1), (0x13,  9, 22, -1),
 157     (0x12,  9, 23, -1), (0x11,  9, 24, -1), (0x07, 10, 25, -1), (0x06, 10, 26, -1),
 158     (0x05, 10, 27, -1), (0x04, 10, 28, -1), (0x24, 11, 29, -1), (0x25, 11, 30, -1),
 159     (0x26, 11, 31, -1), (0x27, 11, 32, -1), (0x58, 12, 33, -1), (0x59, 12, 34, -1),
 160     (0x5A, 12, 35, -1), (0x5B, 12, 36, -1), (0x5C, 12, 37, -1), (0x5D, 12, 38, -1),
 161     (0x5E, 12, 39, -1), (0x5F, 12, 40, -1), (0x03,  7,  0,  0)
 162 );
 163
 164 pub const H263_RL_CODES_AIC: &[H263RLCodeDesc] = rlcodes!(
 165     (0x02,  2,  0,  1), (0x06,  3,  0,  2), (0x0E,  4,  0,  3), (0x0C,  5,  0,  4),
 166     (0x0D,  5,  0,  5), (0x10,  6,  0,  6), (0x11,  6,  0,  7), (0x12,  6,  0,  8),
 167     (0x16,  7,  0,  9), (0x1B,  8,  0, 10), (0x20,  9,  0, 11), (0x21,  9,  0, 12),
 168     (0x1A,  9,  0, 13), (0x1B,  9,  0, 14), (0x1C,  9,  0, 15), (0x1D,  9,  0, 16),
 169     (0x1E,  9,  0, 17), (0x1F,  9,  0, 18), (0x23, 11,  0, 19), (0x22, 11,  0, 20),
 170     (0x57, 12,  0, 21), (0x56, 12,  0, 22), (0x55, 12,  0, 23), (0x54, 12,  0, 24),
 171     (0x53, 12,  0, 25), (0x0F,  4,  1,  1), (0x14,  6,  1,  2), (0x14,  7,  1,  3),
 172     (0x1E,  8,  1,  4), (0x0F, 10,  1,  5), (0x21, 11,  1,  6), (0x50, 12,  1,  7),
 173     (0x0B,  5,  2,  1), (0x15,  7,  2,  2), (0x0E, 10,  2,  3), (0x09, 10,  2,  4),
 174     (0x15,  6,  3,  1), (0x1D,  8,  3,  2), (0x0D, 10,  3,  3), (0x51, 12,  3,  4),
 175     (0x13,  6,  4,  1), (0x23,  9,  4,  2), (0x07, 11,  4,  3), (0x17,  7,  5,  1),
 176     (0x22,  9,  5,  2), (0x52, 12,  5,  3), (0x1C,  8,  6,  1), (0x0C, 10,  6,  2),
 177     (0x1F,  8,  7,  1), (0x0B, 10,  7,  2), (0x25,  9,  8,  1), (0x0A, 10,  8,  2),
 178     (0x24,  9,  9,  1), (0x06, 11,  9,  2), (0x21, 10, 10,  1), (0x20, 10, 11,  1),
 179     (0x08, 10, 12,  1), (0x20, 11, 13,  1), (0x07,  4,  0, -1), (0x0C,  6,  0, -2),
 180     (0x10,  7,  0, -3), (0x13,  8,  0, -4), (0x11,  9,  0, -5), (0x12,  9,  0, -6),
 181     (0x04, 10,  0, -7), (0x27, 11,  0, -8), (0x26, 11,  0, -9), (0x5F, 12,  0,-10),
 182     (0x0F,  6,  1, -1), (0x13,  9,  1, -2), (0x05, 10,  1, -3), (0x25, 11,  1, -4),
 183     (0x0E,  6,  2, -1), (0x14,  9,  2, -2), (0x24, 11,  2, -3), (0x0D,  6,  3, -1),
 184     (0x06, 10,  3, -2), (0x5E, 12,  3, -3), (0x11,  7,  4, -1), (0x07, 10,  4, -2),
 185     (0x13,  7,  5, -1), (0x5D, 12,  5, -2), (0x12,  7,  6, -1), (0x5C, 12,  6, -2),
 186     (0x14,  8,  7, -1), (0x5B, 12,  7, -2), (0x15,  8,  8, -1), (0x1A,  8,  9, -1),
 187     (0x19,  8, 10, -1), (0x18,  8, 11, -1), (0x17,  8, 12, -1), (0x16,  8, 13, -1),
 188     (0x19,  9, 14, -1), (0x15,  9, 15, -1), (0x16,  9, 16, -1), (0x18,  9, 17, -1),
 189     (0x17,  9, 18, -1), (0x04, 11, 19, -1), (0x05, 11, 20, -1), (0x58, 12, 21, -1),
 190     (0x59, 12, 22, -1), (0x5A, 12, 23, -1), (0x03,  7,  0,  0)
 191 );
 192
 193 pub struct H263RLCodeReader { tab: &'static [H263RLCodeDesc] }
 194
 195 impl H263RLCodeReader {
 196     pub fn new(tab: &'static [H263RLCodeDesc]) -> Self { H263RLCodeReader { tab } }
 197 }
 198
 199 impl CodebookDescReader<H263RLSym> for H263RLCodeReader {
 200     fn bits(&mut self, idx: usize) -> u8  { self.tab[idx].bits }
 201     fn code(&mut self, idx: usize) -> u32 { self.tab[idx].code as u32 }
 202     fn sym (&mut self, idx: usize) -> H263RLSym { self.tab[idx].sym }
 203     fn len(&mut self) -> usize { self.tab.len() }
 204 }
 205