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Diffstat (limited to 'mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/SeekParameters.java')
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diff --git a/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/SeekParameters.java b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/SeekParameters.java
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+++ b/mobile/android/exoplayer2/src/main/java/org/mozilla/thirdparty/com/google/android/exoplayer2/SeekParameters.java
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+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.mozilla.thirdparty.com.google.android.exoplayer2;
+
+import androidx.annotation.Nullable;
+import org.mozilla.thirdparty.com.google.android.exoplayer2.util.Assertions;
+
+/**
+ * Parameters that apply to seeking.
+ *
+ * <p>The predefined {@link #EXACT}, {@link #CLOSEST_SYNC}, {@link #PREVIOUS_SYNC} and {@link
+ * #NEXT_SYNC} parameters are suitable for most use cases. Seeking to sync points is typically
+ * faster but less accurate than exact seeking.
+ *
+ * <p>In the general case, an instance specifies a maximum tolerance before ({@link
+ * #toleranceBeforeUs}) and after ({@link #toleranceAfterUs}) a requested seek position ({@code x}).
+ * If one or more sync points falls within the window {@code [x - toleranceBeforeUs, x +
+ * toleranceAfterUs]} then the seek will be performed to the sync point within the window that's
+ * closest to {@code x}. If no sync point falls within the window then the seek will be performed to
+ * {@code x - toleranceBeforeUs}. Internally the player may need to seek to an earlier sync point
+ * and discard media until this position is reached.
+ */
+public final class SeekParameters {
+
+ /** Parameters for exact seeking. */
+ public static final SeekParameters EXACT = new SeekParameters(0, 0);
+ /** Parameters for seeking to the closest sync point. */
+ public static final SeekParameters CLOSEST_SYNC =
+ new SeekParameters(Long.MAX_VALUE, Long.MAX_VALUE);
+ /** Parameters for seeking to the sync point immediately before a requested seek position. */
+ public static final SeekParameters PREVIOUS_SYNC = new SeekParameters(Long.MAX_VALUE, 0);
+ /** Parameters for seeking to the sync point immediately after a requested seek position. */
+ public static final SeekParameters NEXT_SYNC = new SeekParameters(0, Long.MAX_VALUE);
+ /** Default parameters. */
+ public static final SeekParameters DEFAULT = EXACT;
+
+ /**
+ * The maximum time that the actual position seeked to may precede the requested seek position, in
+ * microseconds.
+ */
+ public final long toleranceBeforeUs;
+ /**
+ * The maximum time that the actual position seeked to may exceed the requested seek position, in
+ * microseconds.
+ */
+ public final long toleranceAfterUs;
+
+ /**
+ * @param toleranceBeforeUs The maximum time that the actual position seeked to may precede the
+ * requested seek position, in microseconds. Must be non-negative.
+ * @param toleranceAfterUs The maximum time that the actual position seeked to may exceed the
+ * requested seek position, in microseconds. Must be non-negative.
+ */
+ public SeekParameters(long toleranceBeforeUs, long toleranceAfterUs) {
+ Assertions.checkArgument(toleranceBeforeUs >= 0);
+ Assertions.checkArgument(toleranceAfterUs >= 0);
+ this.toleranceBeforeUs = toleranceBeforeUs;
+ this.toleranceAfterUs = toleranceAfterUs;
+ }
+
+ @Override
+ public boolean equals(@Nullable Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (obj == null || getClass() != obj.getClass()) {
+ return false;
+ }
+ SeekParameters other = (SeekParameters) obj;
+ return toleranceBeforeUs == other.toleranceBeforeUs
+ && toleranceAfterUs == other.toleranceAfterUs;
+ }
+
+ @Override
+ public int hashCode() {
+ return (31 * (int) toleranceBeforeUs) + (int) toleranceAfterUs;
+ }
+}