If `experimentalSetEnableMediaCodecVideoRendererPrewarming` is set with `true`, `DefaultRenderersFactory` will provide `ExoPlayer` with a secondary `MediaCodecVideoRenderer` for use in pre-warming through its `createSecondaryRenderer` and `buildSecondaryVideoRenderer` implementations. `ExoPlayer` will then pre-process video of subsequent media items to reduce media item transition latency.
PiperOrigin-RevId: 713605911