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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 } }
}
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 } }
}
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() }
}
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