riva/proto/riva_audio.proto

enum AudioEncoding

AudioEncoding specifies the encoding of the audio bytes in the encapsulating message.

enumerator ENCODING_UNSPECIFIED = 0

Not specified.

enumerator LINEAR_PCM = 1

Uncompressed 16-bit signed little-endian samples (Linear PCM).

enumerator FLAC = 2

FLAC (Free Lossless Audio Codec) is the recommended encoding because it is lossless–therefore recognition is not compromised–and requires only about half the bandwidth of LINEAR16. FLAC stream encoding supports 16-bit and 24-bit samples, however, not all fields in STREAMINFO are supported.

enumerator MULAW = 3

8-bit samples that compand 14-bit audio samples using G.711 PCMU/mu-law.

enumerator OGGOPUS = 4

enumerator ALAW = 20

8-bit samples that compand 13-bit audio samples using G.711 PCMU/a-law.