Import Android SDK Platform PI [4335822]

/google/data/ro/projects/android/fetch_artifact \
    --bid 4335822 \
    --target sdk_phone_armv7-win_sdk \
    sdk-repo-linux-sources-4335822.zip

AndroidVersion.ApiLevel has been modified to appear as 28

Change-Id: Ic8f04be005a71c2b9abeaac754d8da8d6f9a2c32

1 files changed, 89 insertions, 0 deletions

diff --git a/android/media/AudioTimestamp.java b/android/media/AudioTimestamp.java
new file mode 100644
index 00000000..be8ca151
--- /dev/null
+++ b/android/media/AudioTimestamp.java
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2013 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 android.media;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+import android.annotation.IntDef;
+
+/**
+ * Structure that groups a position in frame units relative to an assumed audio stream,
+ * together with the estimated time when that frame enters or leaves the audio
+ * processing pipeline on that device. This can be used to coordinate events
+ * and interactions with the external environment.
+ * <p>
+ * The time is based on the implementation's best effort, using whatever knowledge
+ * is available to the system, but cannot account for any delay unknown to the implementation.
+ *
+ * @see AudioTrack#getTimestamp AudioTrack.getTimestamp(AudioTimestamp)
+ * @see AudioRecord#getTimestamp AudioRecord.getTimestamp(AudioTimestamp, int)
+ */
+public final class AudioTimestamp
+{
+    /**
+     * Clock monotonic or its equivalent on the system,
+     * in the same units and timebase as {@link java.lang.System#nanoTime}.
+     */
+    public static final int TIMEBASE_MONOTONIC = 0;
+
+    /**
+     * Clock monotonic including suspend time or its equivalent on the system,
+     * in the same units and timebase as {@link android.os.SystemClock#elapsedRealtimeNanos}.
+     */
+    public static final int TIMEBASE_BOOTTIME = 1;
+
+    /** @hide */
+    @IntDef({
+        TIMEBASE_MONOTONIC,
+        TIMEBASE_BOOTTIME,
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface Timebase {}
+
+    /**
+     * Position in frames relative to start of an assumed audio stream.
+     * <p>
+     * When obtained through
+     * {@link AudioRecord#getTimestamp AudioRecord.getTimestamp(AudioTimestamp, int)},
+     * all 64 bits of position are valid.
+     * <p>
+     * When obtained through
+     * {@link AudioTrack#getTimestamp AudioTrack.getTimestamp(AudioTimestamp)},
+     * the low-order 32 bits of position is in wrapping frame units similar to
+     * {@link AudioTrack#getPlaybackHeadPosition AudioTrack.getPlaybackHeadPosition()}.
+     */
+    public long framePosition;
+
+    /**
+     * Time associated with the frame in the audio pipeline.
+     * <p>
+     * When obtained through
+     * {@link AudioRecord#getTimestamp AudioRecord.getTimestamp(AudioTimestamp, int)},
+     * this is the estimated time in nanoseconds when the frame referred to by
+     * {@link #framePosition} was captured. The timebase is either
+     * {@link #TIMEBASE_MONOTONIC} or {@link #TIMEBASE_BOOTTIME}, depending
+     * on the timebase parameter used in
+     * {@link AudioRecord#getTimestamp AudioRecord.getTimestamp(AudioTimestamp, int)}.
+     * <p>
+     * When obtained through
+     * {@link AudioTrack#getTimestamp AudioTrack.getTimestamp(AudioTimestamp)},
+     * this is the estimated time when the frame was presented or is committed to be presented,
+     * with a timebase of {@link #TIMEBASE_MONOTONIC}.
+     */
+    public long nanoTime;
+}