Type Alias VAEncMiscParameterHRD 

pub type VAEncMiscParameterHRD = _VAEncMiscParameterHRD;

HRD / VBV buffering parameters for encoding.

This sets the HRD / VBV parameters which will be used by the rate controller for encoding. It should be specified in modes using a bitrate target when the buffering of the output stream needs to be constrained.

If not provided, the encoder may use arbitrary amounts of buffering.

Aliased Type

#[repr(C)]
pub struct VAEncMiscParameterHRD {
    pub initial_buffer_fullness: u32,
    pub buffer_size: u32,
    pub va_reserved: [u32; 4],
}

Fields

initial_buffer_fullness: u32

The initial fullness of the HRD coded picture buffer, in bits.

This sets how full the CPB is when encoding begins - that is, how much buffering will happen on the decoder side before the first frame. The CPB fullness will be reset to this value after any rate control reset (a change in parameters or an explicit reset).

For H.264, it should match the value of initial_cpb_removal_delay in buffering_period SEI messages.

buffer_size: u32

The HRD coded picture buffer size, in bits.

For H.264, it should match the value of cpb_size_value_minus1 in the VUI parameters.

va_reserved: [u32; 4]

\brief Reserved bytes for future use, must be zero