Eyevinn / mp4ff / 32134265500

82%

push

github

feat(aac): decode the AudioSpecificConfig header for any audio object type

DecodeAudioSpecificConfig rejects audio object types other than AAC-LC
and HE-AAC v1/v2, so callers that only need the identity of a track
(object type, base sampling frequency, channel configuration) had to
hand-roll a bit reader for other object types.

Add DecodeAudioSpecificConfigHeader, which parses the fields shared by
every audio object type (ISO/IEC 14496-3 Table 1.15), including the
31-escape for object types 32 and above and the 24-bit sampling
frequency escape, and stops before the object-type-specific payload.
The full decoder is unchanged.

20 of 20 new or added lines in 1 file covered. (100.0%)

23978 of 28959 relevant lines covered (82.8%)

0.92 hits per line