Tencent Music Tech Team
Aug 15, 2023 · Mobile Development
Audio‑Video Synchronization Techniques and ExoPlayer Implementation Details
The article explains audio‑video synchronization fundamentals, user tolerance limits, four sync strategies, and then details ExoPlayer’s audio‑master architecture—two clocks, media‑clock selection, frame‑dropping logic, and how to inject custom clocks—while also addressing Android AudioTrack jitter and work‑arounds.
AndroidExoPlayerMediaClock
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