DTS-HD files play silently on the Onn 4K Plus: DTS decode is license-gated
in its firmware, so c2.amlogic.audio.decoder.dtshd initialises, drains and
advances the playback position while rendering silence. Route DTS-family
decode to the bundled FFmpeg decoder whenever the track will actually be
decoded - passthrough off, downmix, normalization, a failure block, or a
route that cannot bitstream DTS in any shape. Bitstream-capable routes are
untouched: media3 selects direct output before it ever consults the decoder
list, so raw passthrough, the IEC 61937 carrier and the tunneling gate keep
their exact behavior. Kodi ships the same policy as its only configuration:
its MediaCodec audio whitelist is empty and DTS always decodes in FFmpeg.
close#1995
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