Audio passthrough defaults on for Android TV, scoped to ExoPlayer because
mpv force-passes through every codec named in audio-spdif and has no
decode fallback. That scoping did not survive the ExoPlayer to mpv
handoff: PlayerAndroid queued the raw ac3,eac3,dts,dts-hd,truehd list as
a pending mpv property and prepareMpvFallback replayed it verbatim, so a
sink that bitstreams only Dolby formats was told to force TrueHD and
DTS-HD anyway. mpv selected spdif_truehd, the audio output never
initialised, and playback froze at its start position while still showing
a first frame — the stop timeline reported the position it opened with.
Treat passthrough as a request and resolve the codec list against the
route when mpv actually starts, so an HDMI or AVR change between
ExoPlayer startup and the handoff cannot replay codecs from the old sink.
Gate each codec on the exact advertised encoding rather than media3's
passthrough probe: that probe answers DTS-HD by downgrading to the DTS
core, and mpv reads "dts,dts-hd" as "dts-hd" alone, so accepting the
downgrade would name DTS-HD MA to a core-only receiver and lose DTS too.
setNext() appended raw content:// URIs that mpv cannot open, stalling
playback at the SD-card-download track boundary. Convert to fdclose://
like open(), track the armed fd, and reclaim it via a new closeContentFd
method when the entry is dropped unplayed (close only when provably
unconsumed — playlist-pos 0 before and after the remove; leak on doubt).
The playlist-pos pre-check also keeps the clear path from removing the
playing entry when mpv rolls into the armed track mid-clear.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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