- main/audio_out: one converter instance per source (own rate converter
state): s16 any rate/channels -> 48 kHz stereo int32 -> ring.
- player_write(src, ...) only writes for the active source, drops the
rest; player_src_t is public in player.h.
- HLS decoder uses audio_out (no behaviour change).
- Verified: HLS still sample exact (441344 -> 480375 frames per
10.008 s segment), buffer ~4 s, 0 underruns.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
