[nihav.git] / nihav-core / src / codecs / h263 / data.rs

use crate::io::codebook::CodebookDescReader;

#[allow(dead_code)]
pub const H263_SCALES: &[u8] = &[
    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 ];

#[allow(dead_code)]
pub const H263_DC_SCALES: &[u8] = &[
    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 ];

pub const H263_ZIGZAG: &[usize] = &[
    0,   1,  8, 16,  9,  2,  3, 10,
    17, 24, 32, 25, 18, 11,  4,  5,
    12, 19, 26, 33, 40, 48, 41, 34,
    27, 20, 13,  6,  7, 14, 21, 28,
    35, 42, 49, 56, 57, 50, 43, 36,
    29, 22, 15, 23, 30, 37, 44, 51,
    58, 59, 52, 45, 38, 31, 39, 46,
    53, 60, 61, 54, 47, 55, 62, 63
];

pub const H263_SCAN_H: &[usize] = &[
    0,   1,  2,  3,  8,  9, 16, 17,
    10, 11,  4,  5,  6,  7, 15, 14,
    13, 12, 19, 18, 24, 25, 32, 33,
    26, 27, 20, 21, 22, 23, 28, 29,
    30, 31, 34, 35, 40, 41, 48, 49,
    42, 43, 36, 37, 38, 39, 44, 45,
    46, 47, 50, 51, 56, 57, 58, 59,
    52, 53, 54, 55, 60, 61, 62, 63
];

pub const H263_SCAN_V: &[usize] = &[
    0,   8, 16, 24,  1,  9,  2, 10,
    17, 25, 32, 40, 48, 56, 57, 49,
    41, 33, 26, 18,  3, 11,  4, 12,
    19, 27, 34, 42, 50, 58, 35, 43,
    51, 59, 20, 28,  5, 13,  6, 14,
    21, 29, 36, 44, 52, 60, 37, 45,
    53, 61, 22, 30,  7, 15, 23, 31,
    38, 46, 54, 62, 39, 47, 55, 63
];

pub const H263_SIZES: &[(usize, usize)] = &[
    (0, 0), (128, 96), (176, 144), (352, 288), (704, 576), (1408, 1152)
];

pub const H263_INTRA_MCBPC: &[(u8, u8)] = &[
    (1, 1), (1, 3), (2, 3), (3, 3), (1, 4), (1, 6), (2, 6), (3, 6), (1, 9)
];

pub const H263_INTER_MCBPC: &[(u8, u8)] = &[
    (1, 1), (3, 4), (2, 4), (5, 6), (3, 5), (4, 8), (3, 8), (3, 7),
    (3, 3), (7, 7), (6, 7), (5, 9), (4, 6), (4, 9), (3, 9), (2, 9),
    (2, 3), (5, 7), (4, 7), (5, 8), (1, 9), (0, 0), (0, 0), (0, 0),
    (2, 11), (12, 13), (14, 13), (15, 13)
];

pub const H263_CBPY: &[(u8, u8)] = &[
    ( 3, 4), ( 5, 5), ( 4, 5), ( 9, 4), ( 3, 5), ( 7, 4), ( 2, 6), (11, 4),
    ( 2, 5), ( 3, 6), ( 5, 4), (10, 4), ( 4, 4), ( 8, 4), ( 6, 4), ( 3, 2)
];

pub const H263_MV: &[(u8, u8)] = &[
    ( 1,  1), ( 1,  2), ( 1,  3), ( 1,  4), ( 3,  6), ( 5,  7), ( 4,  7), ( 3,  7),
    (11,  9), (10,  9), ( 9,  9), (17, 10), (16, 10), (15, 10), (14, 10), (13, 10),
    (12, 10), (11, 10), (10, 10), ( 9, 10), ( 8, 10), ( 7, 10), ( 6, 10), ( 5, 10),
    ( 4, 10), ( 7, 11), ( 6, 11), ( 5, 11), ( 4, 11), ( 3, 11), ( 2, 11), ( 3, 12),
    ( 2, 12)
];

pub const H263_MBTYPE_B: &[(u8, u8)] = &[
    (1,  1), (3,  3), (1,  5), (4,  4), (5,  4), (6,  6), (2,  4), (3,  4),
    (7,  6), (4,  6), (5,  6), (1,  6), (1,  7), (1,  8), (1, 10)
];

// 0x1 - direct, 0x2 - has quant, 0x4 - has CBP, 0x8 - has dquant, 0x10 - has fwd, 0x20 - has bwd, 0x40 - intra

pub const H263_MBB_CAP_CODED:    u8 = 0x2;
pub const H263_MBB_CAP_DQUANT:   u8 = 0x4;
pub const H263_MBB_CAP_FORWARD:  u8 = 0x10;
pub const H263_MBB_CAP_BACKWARD: u8 = 0x20;
pub const H263_MBB_CAP_INTRA:    u8 = 0x80;

pub const H263_MBTYPE_B_CAPS: &[u8] = &[
    0x00, 0x02, 0x06, // skipped, direct, direct+dq
    0x10, 0x12, 0x16, // forward, coded forward, forward+dq
    0x20, 0x22, 0x26, // backward, coded backward, backward+dq
    0x30, 0x32, 0x36, // bidir, coded bidir, bidir+dq
          0x82, 0x86  // intra, intra+dq
];

pub const H263_CBPC_B: &[(u8, u8)] = &[
    (0, 1), (2, 2), (7, 3), (6, 3)
];

pub const H263_DQUANT_TAB: &[i8] = &[-1, -2, 1, 2];

pub const H263_MODIFIED_QUANT: [[u8; 32]; 2] = [
  [
     0,  3,  1,  2,  3,  4,  5,  6,  7,  8,  9,  9, 10, 11, 12, 13,
    14, 15, 16, 17, 18, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28
  ], [
     0,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 13, 14, 15, 16, 17,
    18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 29, 30, 31, 31, 31, 26
  ]
];

pub const H263_CHROMA_QUANT: [u8; 32] = [
     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
];

pub struct H263ShortCodeReader { tab: &'static [(u8, u8)] }

impl H263ShortCodeReader {
    pub fn new(tab: &'static [(u8, u8)]) -> Self { H263ShortCodeReader { tab: tab } }
}

impl CodebookDescReader<u8> for H263ShortCodeReader {
    fn bits(&mut self, idx: usize) -> u8  { let (_, bits) = self.tab[idx]; bits }
    fn code(&mut self, idx: usize) -> u32 { let (code, _) = self.tab[idx]; code as u32 }
    fn sym (&mut self, idx: usize) -> u8 { idx as u8 }
    fn len(&mut self) -> usize { self.tab.len() }
}

#[derive(Clone,Copy)]
pub struct H263RLSym { run: u8, level: i8 }
impl H263RLSym {
    pub fn get_run(&self)   -> u8 { self.run }
    pub fn is_last(&self)   -> bool { self.level < 0 }
    pub fn is_escape(&self) -> bool { (self.run == 0) && (self.level == 0) }
    pub fn get_level(&self) -> i16 { if self.level < 0 { -self.level as i16 } else { self.level as i16 } }
}

pub struct H263RLCodeDesc { code: u8, bits: u8, sym: H263RLSym }

macro_rules! rlcodes{
    ($(($c:expr, $b:expr, $r:expr, $l:expr)),*) => {
        &[$(H263RLCodeDesc{ code: $c, bits: $b, sym: H263RLSym{ run: $r, level: $l }}),*]
    }
}

pub const H263_RL_CODES: &[H263RLCodeDesc] = rlcodes!(
    (0x02,  2,  0,  1), (0x0F,  4,  0,  2), (0x15,  6,  0,  3), (0x17,  7,  0,  4),
    (0x1F,  8,  0,  5), (0x25,  9,  0,  6), (0x24,  9,  0,  7), (0x21, 10,  0,  8),
    (0x20, 10,  0,  9), (0x07, 11,  0, 10), (0x06, 11,  0, 11), (0x20, 11,  0, 12),
    (0x06,  3,  1,  1), (0x14,  6,  1,  2), (0x1E,  8,  1,  3), (0x0F, 10,  1,  4),
    (0x21, 11,  1,  5), (0x50, 12,  1,  6), (0x0E,  4,  2,  1), (0x1D,  8,  2,  2),
    (0x0E, 10,  2,  3), (0x51, 12,  2,  4), (0x0D,  5,  3,  1), (0x23,  9,  3,  2),
    (0x0D, 10,  3,  3), (0x0C,  5,  4,  1), (0x22,  9,  4,  2), (0x52, 12,  4,  3),
    (0x0B,  5,  5,  1), (0x0C, 10,  5,  2), (0x53, 12,  5,  3), (0x13,  6,  6,  1),
    (0x0B, 10,  6,  2), (0x54, 12,  6,  3), (0x12,  6,  7,  1), (0x0A, 10,  7,  2),
    (0x11,  6,  8,  1), (0x09, 10,  8,  2), (0x10,  6,  9,  1), (0x08, 10,  9,  2),
    (0x16,  7, 10,  1), (0x55, 12, 10,  2), (0x15,  7, 11,  1), (0x14,  7, 12,  1),
    (0x1C,  8, 13,  1), (0x1B,  8, 14,  1), (0x21,  9, 15,  1), (0x20,  9, 16,  1),
    (0x1F,  9, 17,  1), (0x1E,  9, 18,  1), (0x1D,  9, 19,  1), (0x1C,  9, 20,  1),
    (0x1B,  9, 21,  1), (0x1A,  9, 22,  1), (0x22, 11, 23,  1), (0x23, 11, 24,  1),
    (0x56, 12, 25,  1), (0x57, 12, 26,  1), (0x07,  4,  0, -1), (0x19,  9,  0, -2),
    (0x05, 11,  0, -3), (0x0F,  6,  1, -1), (0x04, 11,  1, -2), (0x0E,  6,  2, -1),
    (0x0D,  6,  3, -1), (0x0C,  6,  4, -1), (0x13,  7,  5, -1), (0x12,  7,  6, -1),
    (0x11,  7,  7, -1), (0x10,  7,  8, -1), (0x1A,  8,  9, -1), (0x19,  8, 10, -1),
    (0x18,  8, 11, -1), (0x17,  8, 12, -1), (0x16,  8, 13, -1), (0x15,  8, 14, -1),
    (0x14,  8, 15, -1), (0x13,  8, 16, -1), (0x18,  9, 17, -1), (0x17,  9, 18, -1),
    (0x16,  9, 19, -1), (0x15,  9, 20, -1), (0x14,  9, 21, -1), (0x13,  9, 22, -1),
    (0x12,  9, 23, -1), (0x11,  9, 24, -1), (0x07, 10, 25, -1), (0x06, 10, 26, -1),
    (0x05, 10, 27, -1), (0x04, 10, 28, -1), (0x24, 11, 29, -1), (0x25, 11, 30, -1),
    (0x26, 11, 31, -1), (0x27, 11, 32, -1), (0x58, 12, 33, -1), (0x59, 12, 34, -1),
    (0x5A, 12, 35, -1), (0x5B, 12, 36, -1), (0x5C, 12, 37, -1), (0x5D, 12, 38, -1),
    (0x5E, 12, 39, -1), (0x5F, 12, 40, -1), (0x03,  7,  0,  0)
);

pub const H263_RL_CODES_AIC: &[H263RLCodeDesc] = rlcodes!(
    (0x02,  2,  0,  1), (0x06,  3,  0,  2), (0x0E,  4,  0,  3), (0x0C,  5,  0,  4),
    (0x0D,  5,  0,  5), (0x10,  6,  0,  6), (0x11,  6,  0,  7), (0x12,  6,  0,  8),
    (0x16,  7,  0,  9), (0x1B,  8,  0, 10), (0x20,  9,  0, 11), (0x21,  9,  0, 12),
    (0x1A,  9,  0, 13), (0x1B,  9,  0, 14), (0x1C,  9,  0, 15), (0x1D,  9,  0, 16),
    (0x1E,  9,  0, 17), (0x1F,  9,  0, 18), (0x23, 11,  0, 19), (0x22, 11,  0, 20),
    (0x57, 12,  0, 21), (0x56, 12,  0, 22), (0x55, 12,  0, 23), (0x54, 12,  0, 24),
    (0x53, 12,  0, 25), (0x0F,  4,  1,  1), (0x14,  6,  1,  2), (0x14,  7,  1,  3),
    (0x1E,  8,  1,  4), (0x0F, 10,  1,  5), (0x21, 11,  1,  6), (0x50, 12,  1,  7),
    (0x0B,  5,  2,  1), (0x15,  7,  2,  2), (0x0E, 10,  2,  3), (0x09, 10,  2,  4),
    (0x15,  6,  3,  1), (0x1D,  8,  3,  2), (0x0D, 10,  3,  3), (0x51, 12,  3,  4),
    (0x13,  6,  4,  1), (0x23,  9,  4,  2), (0x07, 11,  4,  3), (0x17,  7,  5,  1),
    (0x22,  9,  5,  2), (0x52, 12,  5,  3), (0x1C,  8,  6,  1), (0x0C, 10,  6,  2),
    (0x1F,  8,  7,  1), (0x0B, 10,  7,  2), (0x25,  9,  8,  1), (0x0A, 10,  8,  2),
    (0x24,  9,  9,  1), (0x06, 11,  9,  2), (0x21, 10, 10,  1), (0x20, 10, 11,  1),
    (0x08, 10, 12,  1), (0x20, 11, 13,  1), (0x07,  4,  0, -1), (0x0C,  6,  0, -2),
    (0x10,  7,  0, -3), (0x13,  8,  0, -4), (0x11,  9,  0, -5), (0x12,  9,  0, -6),
    (0x04, 10,  0, -7), (0x27, 11,  0, -8), (0x26, 11,  0, -9), (0x5F, 12,  0,-10),
    (0x0F,  6,  1, -1), (0x13,  9,  1, -2), (0x05, 10,  1, -3), (0x25, 11,  1, -4),
    (0x0E,  6,  2, -1), (0x14,  9,  2, -2), (0x24, 11,  2, -3), (0x0D,  6,  3, -1),
    (0x06, 10,  3, -2), (0x5E, 12,  3, -3), (0x11,  7,  4, -1), (0x07, 10,  4, -2),
    (0x13,  7,  5, -1), (0x5D, 12,  5, -2), (0x12,  7,  6, -1), (0x5C, 12,  6, -2),
    (0x14,  8,  7, -1), (0x5B, 12,  7, -2), (0x15,  8,  8, -1), (0x1A,  8,  9, -1),
    (0x19,  8, 10, -1), (0x18,  8, 11, -1), (0x17,  8, 12, -1), (0x16,  8, 13, -1),
    (0x19,  9, 14, -1), (0x15,  9, 15, -1), (0x16,  9, 16, -1), (0x18,  9, 17, -1),
    (0x17,  9, 18, -1), (0x04, 11, 19, -1), (0x05, 11, 20, -1), (0x58, 12, 21, -1),
    (0x59, 12, 22, -1), (0x5A, 12, 23, -1), (0x03,  7,  0,  0)
);

pub struct H263RLCodeReader { tab: &'static [H263RLCodeDesc] }

impl H263RLCodeReader {
    pub fn new(tab: &'static [H263RLCodeDesc]) -> Self { H263RLCodeReader { tab: tab } }
}

impl CodebookDescReader<H263RLSym> for H263RLCodeReader {
    fn bits(&mut self, idx: usize) -> u8  { self.tab[idx].bits }
    fn code(&mut self, idx: usize) -> u32 { self.tab[idx].code as u32 }
    fn sym (&mut self, idx: usize) -> H263RLSym { self.tab[idx].sym }
    fn len(&mut self) -> usize { self.tab.len() }
}
Commit	Line	Data
aca89041	1	use crate::io::codebook::CodebookDescReader;
cf64af13 KS	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
de919937 KS	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
cf64af13 KS	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
ef3209c7 KS	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
cf64af13 KS	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
271cfde5 KS	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
cf64af13 KS	97	pub const H263_DQUANT_TAB: &[i8] = &[-1, -2, 1, 2];
cf64af13 KS	98
43c8b55e KS	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
cf64af13 KS	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