Struct TargetBackgroundGridDescriptor 

pub struct TargetBackgroundGridDescriptor {
    pub horizontal_size: u16,
    pub vertical_size: u16,
    pub aspect_ratio_information: u8,
}

target_background_grid_descriptor body (§2.6.12 Table 2-49).

Describes a grid of unit pixels projected onto the display area (e.g. a monitor) for a video stream that is not intended to occupy the full display. A paired video_window_descriptor (§2.6.14) then places the stream’s window on this grid. Per §2.6.13:

• horizontal_size — horizontal size of the target background grid in pixels.
• vertical_size — vertical size of the target background grid in pixels.
• aspect_ratio_information — sample or display aspect ratio of the grid, encoded per the aspect_ratio_information field of ITU-T Rec. H.262 | ISO/IEC 13818-2 (Table 2-49 cross-reference). Surfaced as the raw 4-bit code; this crate does not decode the H.262 table.

On the wire the body is exactly 4 bytes (Table 2-49):

byte 0: horizontal_size bits 13..6                      (8)
byte 1: horizontal_size bits 5..0 (6) | vertical_size bits 13..12 (2)
byte 2: vertical_size bits 11..4                        (8)
byte 3: vertical_size bits 3..0 (4) | aspect_ratio_information (4)

Both size fields are big-endian 14-bit unsigned values; the table carries no reserved bits, so all 32 bits are payload.

Fields

horizontal_size: u16

horizontal_size (14 bits) — grid width in pixels.

vertical_size: u16

vertical_size (14 bits) — grid height in pixels.

aspect_ratio_information: u8

aspect_ratio_information (4 bits) — raw H.262 aspect-ratio code.

Trait Implementations

impl Clone for TargetBackgroundGridDescriptor

fn clone(&self) -> TargetBackgroundGridDescriptor

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for TargetBackgroundGridDescriptor

impl Debug for TargetBackgroundGridDescriptor

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for TargetBackgroundGridDescriptor

impl PartialEq for TargetBackgroundGridDescriptor

fn eq(&self, other: &TargetBackgroundGridDescriptor) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for TargetBackgroundGridDescriptor