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MbSyntax

atmos::os_lib::h264_decode

Trait MbSyntax 

Source 
trait MbSyntax {

Show 13 methods    // Required methods
    fn mb_type(
        &mut self,
        st: &DecState,
        mb_x: u32,
        mb_y: u32,
        kind: SliceKind,
    ) -> Result<u32, &'static str>;
    fn sub_mb_type(&mut self, kind: SliceKind) -> Result<u32, &'static str>;
    fn intra4x4_rem(&mut self) -> Option<i32>;
    fn intra_chroma_mode(
        &mut self,
        st: &DecState,
        mb_x: u32,
        mb_y: u32,
    ) -> Result<u8, &'static str>;
    fn cbp(
        &mut self,
        st: &DecState,
        mb_x: u32,
        mb_y: u32,
        intra: bool,
    ) -> Result<u32, &'static str>;
    fn qp_delta(&mut self) -> Result<i32, &'static str>;
    fn ref_idx(
        &mut self,
        st: &DecState,
        list: usize,
        px: usize,
        py: usize,
        pw: usize,
        ph: usize,
        num_ref: u32,
    ) -> Result<i8, &'static str>;
    fn mvd(
        &mut self,
        st: &DecState,
        list: usize,
        px: usize,
        py: usize,
        pw: usize,
        ph: usize,
    ) -> Result<[i16; 2], &'static str>;
    fn residual(
        &mut self,
        st: &DecState,
        blk: ResBlock,
    ) -> Result<([i32; 16], u8), &'static str>;
    fn pcm(&mut self, out: &mut [u8; 384]);
    fn transform_8x8(&mut self, st: &DecState, mb_x: u32, mb_y: u32) -> bool;
    fn residual8x8(
        &mut self,
        st: &DecState,
        bx4: usize,
        by4: usize,
    ) -> Result<([i32; 64], [u8; 4]), &'static str>;

    // Provided method
    fn mark_direct(&mut self, _px: usize, _py: usize, _pw: usize, _ph: usize) { ... }

}
Expand description

MB 層の構文要素の読み手。値の番号付けは CAVLC（表 7-11/7-13/7-14/7-17/7-18）に揃える。

Required Methods§

Source

fn mb_type( &mut self, st: &DecState, mb_x: u32, mb_y: u32, kind: SliceKind, ) -> Result<u32, &'static str>

Source

fn sub_mb_type(&mut self, kind: SliceKind) -> Result<u32, &'static str>

Source

fn intra4x4_rem(&mut self) -> Option<i32>

prev_intra4x4_pred_mode_flag が 1 なら None、0 なら rem_intra4x4_pred_mode。

Source

fn intra_chroma_mode( &mut self, st: &DecState, mb_x: u32, mb_y: u32, ) -> Result<u8, &'static str>

Source

fn cbp( &mut self, st: &DecState, mb_x: u32, mb_y: u32, intra: bool, ) -> Result<u32, &'static str>

Source

fn qp_delta(&mut self) -> Result<i32, &'static str>

Source

fn ref_idx( &mut self, st: &DecState, list: usize, px: usize, py: usize, pw: usize, ph: usize, num_ref: u32, ) -> Result<i8, &'static str>

パーティション (px, py, pw, ph) の ref_idx_lX。

Source

fn mvd( &mut self, st: &DecState, list: usize, px: usize, py: usize, pw: usize, ph: usize, ) -> Result<[i16; 2], &'static str>

パーティション (px, py, pw, ph) の mvd_lX。

Source

fn residual( &mut self, st: &DecState, blk: ResBlock, ) -> Result<([i32; 16], u8), &'static str>

残差 1 ブロック（走査順の係数, 非ゼロ係数の数）。

Source

fn pcm(&mut self, out: &mut [u8; 384])

I_PCM の 384 バイト（Y 256・Cb 64・Cr 64）。

Source

fn transform_8x8(&mut self, st: &DecState, mb_x: u32, mb_y: u32) -> bool

transform_size_8x8_flag。

Source

fn residual8x8( &mut self, st: &DecState, bx4: usize, by4: usize, ) -> Result<([i32; 64], [u8; 4]), &'static str>

輝度 8x8 の残差（左上の 4x4 位置）。（8x8 走査順の係数 64 個, 4 つの 4x4 ごとの係数の数）。

Provided Methods§

Source

fn mark_direct(&mut self, _px: usize, _py: usize, _pw: usize, _ph: usize)

B_Skip / B_Direct の領域を記録する（CABAC の ref_idx の文脈用）。

Dyn Compatibility§

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§