Detect the Ogg sub-format (Vorbis, Opus, Speex, or FLAC) by scanning the first 128 bytes of a stream already identified as Ogg.
The Ogg audio data stream.
One of "ogg-opus", "ogg-speex", "ogg-flac", or "ogg-vorbis" (the last is used as a fallback when none of the others match).
"ogg-opus"
"ogg-speex"
"ogg-flac"
"ogg-vorbis"
Detect the Ogg sub-format (Vorbis, Opus, Speex, or FLAC) by scanning the first 128 bytes of a stream already identified as Ogg.