MP3 seeking gets progressively slower in long files #3

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opened 2026-07-25 20:54:04 +00:00 by sleepless · 0 comments

sleepless commented 2026-07-25 20:54:04 +00:00

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This appears to be a limitation of SoundFlow's default MiniAudio-backed MP3 decoder path. Auzi delegates seeking directly to SoundFlow, and SoundFlow 1.4.1 does not appear to build or bind MP3 seek points. In miniaudio, MP3 seeking without seek points falls back to a brute-force path that reads/skips frames up to the target position, so seeks later in long MP3 files can take progressively longer.

Filed a performance bug with SoundFlow @ https://github.com/LSXPrime/SoundFlow/issues/115

The maintainer is unavailable until after February 2027.

This appears to be a limitation of [SoundFlow](https://github.com/LSXPrime/SoundFlow/)'s default MiniAudio-backed MP3 decoder path. Auzi delegates seeking directly to SoundFlow, and SoundFlow 1.4.1 does not appear to build or bind MP3 seek points. In miniaudio, MP3 seeking without seek points falls back to a brute-force path that reads/skips frames up to the target position, so seeks later in long MP3 files can take progressively longer. Filed a performance bug with SoundFlow @ https://github.com/LSXPrime/SoundFlow/issues/115 The maintainer is unavailable until after February 2027.

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sleepless/auzi#3

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