This typo was introduced in https://github.com/google/ExoPlayer/commit/ddb70d96ad99f07fe10f53a76ce3262fe625be70 when migrating a static method with parameter `durationUs` to an instance method where the correct field to use was `blockDurationUs` (but `durationUs` also exists). The test that catches this was only added in https://github.com/google/ExoPlayer/commit/45013ece1e3fe054ff8960355a89559241eeb288 (and therefore configured with the wrong expected output data). issue:#6833 PiperOrigin-RevId: 288274197
