Module dispatch 

Available on crate feature codec only.

Codec-erased dispatch over CodecId.

Protocol handlers call these to classify an access unit without naming a concrete parser. Each returns a conservative default (false / None) for a codec whose feature is not enabled.

Functions

hls_codec_string

The HLS CODECS attribute for codec given parsed params.

is_random_access_point

Whether data is a random-access point under codec.

parameter_sets

Extract the codec’s parameter-set NAL units (H.264 SPS/PPS, H.265 VPS/SPS/PPS) from an Annex-B access unit, re-framed Annex-B with 4-byte start codes — i.e. a config record suitable for parse_config / Fmp4Muxer::init_segment. Returns None for codecs whose config is not a NAL parameter set, or when the access unit carries none.

parse_config

Extract VideoParams from a config access unit for codec.