For a raw M4AAC stream the maximum channel count was written into the
AudioSpecificConfig as the channel configuration. The maximum only bounds
the stream: The Smurfs Dreams creates its decoder with 8 channels at most
and sends stereo, so FFmpeg refused configuration 8 (reserved) and a
stereo stream under configuration 6 or 7 decodes no frame. The decoder
now starts from the mono/stereo configuration and on the first access
unit that it cannot decode moves on to the configurations with more
channels, up to the maximum, keeping the first one that decodes.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
All six exports are implemented: MP3 and AAC (ADTS or raw blocks) are
decoded with the bundled FFmpeg and ATRAC9 with LibAtrac9, one unit per
call, into interleaved S16 or float PCM, with the libSceAudiodec
validation and error codes. libSceAudiodec.native is built from the same
sources.
Co-Authored-By: Claude <noreply@anthropic.com>
Pacuka
Adrià Franch