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parse_h264_slice_header

codec::pixel_format

Function parse_h264_slice_header 

Source 
pub fn parse_h264_slice_header(
    sample: &[u8],
    sps: &H264SpsInfo,
    pps: &H264PpsInfo,
) -> Option<H264SliceHeader>
Expand description

Parse the first slice-NAL in sample, using the SPS + PPS for branch predicates. The NAL header’s nal_unit_type gates which slice types we accept: 1 (non-IDR), 5 (IDR), 19 (auxiliary coded slice) all share the same syntax. Returns None when the sample contains no slice NAL or the SPS/PPS didn’t provide the required context (e.g., SPS pic_order_cnt_type was None so we can’t branch into the POC reads).