From 271cfde573f2fa33fe6b82ce89de24a429a509c5 Mon Sep 17 00:00:00 2001 From: Kostya Shishkov Date: Tue, 28 Nov 2017 19:17:44 +0100 Subject: [PATCH] h263: B-frame data --- src/codecs/h263/data.rs | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/src/codecs/h263/data.rs b/src/codecs/h263/data.rs index 928b1cf..38fa6ca 100644 --- a/src/codecs/h263/data.rs +++ b/src/codecs/h263/data.rs @@ -69,6 +69,31 @@ pub const H263_MV: &[(u8, u8)] = &[ ( 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 struct H263ShortCodeReader { tab: &'static [(u8, u8)] } -- 2.30.2