Struct libjxl_sys::JxlFrameHeader

#[repr(C)]
pub struct JxlFrameHeader {
    pub duration: u32,
    pub timecode: u32,
    pub name_length: u32,
    pub is_last: c_int,
    pub layer_info: JxlLayerInfo,
}

The header of one displayed frame or non-coalesced layer.

Fields

duration: u32

How long to wait after rendering in ticks. The duration in seconds of a tick is given by tps_numerator and tps_denominator in JxlAnimationHeader.

timecode: u32

SMPTE timecode of the current frame in form 0xHHMMSSFF, or 0. The bits are interpreted from most-significant to least-significant as hour, minute, second, and frame. If timecode is nonzero, it is strictly larger than that of a previous frame with nonzero duration. These values are only available if have_timecodes in JxlAnimationHeader is JXL_TRUE. This value is only used if have_timecodes in JxlAnimationHeader is JXL_TRUE.

name_length: u32

Length of the frame name in bytes, or 0 if no name. Excludes null termination character. This value is set by the decoder. For the encoder, this value is ignored and @ref JxlEncoderSetFrameName is used instead to set the name and the length.

is_last: c_int

Indicates this is the last animation frame. This value is set by the decoder to indicate no further frames follow. For the encoder, it is not required to set this value and it is ignored, @ref JxlEncoderCloseFrames is used to indicate the last frame to the encoder instead.

layer_info: JxlLayerInfo

Information about the layer in case of no coalescing.

Trait Implementations

impl Clone for JxlFrameHeader

fn clone(&self) -> JxlFrameHeader

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for JxlFrameHeader

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

Formats the value using the given formatter.

impl Default for JxlFrameHeader

fn default() -> Self

Returns the “default value” for a type.

impl Copy for JxlFrameHeader