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Make conversions to durationsUs consistent in SpeedProviders

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PiperOrigin-RevId: 687334787
This commit is contained in:
ivanbuper 2024-10-18 09:44:46 -07:00 committed by Copybara-Service
parent b64bf88272
commit 0108fb938e
3 changed files with 6 additions and 4 deletions
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5
libraries/common/src/main/java/androidx/media3/common/util/SpeedProviderUtil.java
View file

@ -15,8 +15,8 @@
*/
package androidx.media3.common.util;
import static java.lang.Math.floor;
import static java.lang.Math.min;
import static java.lang.Math.round;
import androidx.media3.common.C;
import androidx.media3.common.audio.SpeedProvider;
@ -45,6 +45,7 @@ public class SpeedProviderUtil {
/ (double) speedProvider.getSpeed(speedChangeTimeUs);
speedChangeTimeUs = nextSpeedChangeTimeUs;
}
return round(outputDurationUs);
// Use floor to be consistent with Util#scaleLargeTimestamp().
return (long) floor(outputDurationUs);
}
}

2
libraries/common/src/test/java/androidx/media3/common/util/SpeedProviderUtilTest.java
View file

@ -46,6 +46,6 @@ public class SpeedProviderUtilTest {
/* startTimesUs= */ new long[] {0, 113}, /* speeds= */ new float[] {2, 1});
assertThat(getDurationAfterSpeedProviderApplied(speedProvider, /* durationUs= */ 113))
.isEqualTo(57);
.isEqualTo(56);
}
}

3
libraries/test_utils/src/main/java/androidx/media3/test/utils/TestSpeedProvider.java
View file

@ -16,6 +16,7 @@
package androidx.media3.test.utils;
import static androidx.media3.common.util.Assertions.checkArgument;
import static androidx.media3.common.util.Util.sampleCountToDurationUs;
import androidx.media3.common.C;
import androidx.media3.common.audio.AudioProcessor.AudioFormat;
@ -56,7 +57,7 @@ public final class TestSpeedProvider implements SpeedProvider {
long[] startTimesUs = new long[frameCounts.length];
int totalFrameCount = 0;
for (int i = 0; i < frameCounts.length; i++) {
startTimesUs[i] = totalFrameCount * C.MICROS_PER_SECOND / audioFormat.sampleRate;
startTimesUs[i] = sampleCountToDurationUs(totalFrameCount, audioFormat.sampleRate);
totalFrameCount += frameCounts[i];
}
return new TestSpeedProvider(startTimesUs, speeds);