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Commit 228c9847 authored by Glenn Kasten's avatar Glenn Kasten
Browse files

New API for querying audio properties

Bug: 6635041
Change-Id: I66e87c75af7c84cdb23cb25a958e79bba8e53baa
parent d65afc65
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+29 −0
Original line number Diff line number Diff line
@@ -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;
    }

}