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authorGlenn Kasten <gkasten@google.com>2012-09-14 08:48:47 -0700
committerGlenn Kasten <gkasten@google.com>2012-09-17 08:54:11 -0700
commit228c9847a31b79f8baa80302731cdbf6a2b3c0d4 (patch)
tree439f7bef38208e80c85cc9eadd8b0d1c23ef8744 /media
parentd65afc65ea5b2bf83889dd88a9c94f895da8aece (diff)
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New API for querying audio properties
Bug: 6635041 Change-Id: I66e87c75af7c84cdb23cb25a958e79bba8e53baa
Diffstat (limited to 'media')
-rw-r--r--media/java/android/media/AudioManager.java29
1 files changed, 29 insertions, 0 deletions
diff --git a/media/java/android/media/AudioManager.java b/media/java/android/media/AudioManager.java
index ea00ec8..c848f0f 100644
--- a/media/java/android/media/AudioManager.java
+++ b/media/java/android/media/AudioManager.java
@@ -2443,4 +2443,33 @@ public class AudioManager {
return null;
}
}
+
+ /**
+ * Used as a key for #getProperty to request the native or optimal output sample rate for
+ * this device, in decimal Hz.
+ * {@hide}
+ */
+ public static final String PROPERTY_OUTPUT_SAMPLE_RATE =
+ "android.media.property.OUTPUT_SAMPLE_RATE";
+
+ /**
+ * Used as a key for #getProperty to request the native or optimal output buffer size for
+ * this device, in decimal PCM frames.
+ * {@hide}
+ */
+ public static final String PROPERTY_OUTPUT_FRAMES_PER_BUFFER =
+ "android.media.property.OUTPUT_FRAMES_PER_BUFFER";
+
+ /**
+ * @param key One of the strings corresponding to a property key: either
+ * #PROPERTY_OUTPUT_SAMPLE_RATE or #PROPERTY_OUTPUT_FRAMES_PER_BUFFER
+ * @return A string representing the associated value for that property key,
+ * or null if there is no value for that key.
+ * {@hide}
+ */
+ public String getProperty(String key) {
+ // uses android.os.SystemProperties.get for selected keys, with suitable defaults
+ return null;
+ }
+
}