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Settings: add ENCODED_SURROUND_OUTPUT

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Support AUTO, ALWAYS or NEVER preference for using AC3 and DTS.

Bug: 24541671
Change-Id: I423969882d18d99ce93bea57d10bdb1da7063b7a
Signed-off-by: Phil Burk <philburk@google.com>
This commit is contained in:
Phil Burk
2016-02-23 17:12:04 -08:00
parent f5725e6501
commit deaa8d94fd
1 changed files with 47 additions and 0 deletions
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47
core/java/android/provider/Settings.java
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@@ -7865,6 +7865,52 @@ public final class Settings {
*/
public static final String DOCK_AUDIO_MEDIA_ENABLED = "dock_audio_media_enabled";
/**
* The surround sound formats AC3, DTS or IEC61937 are
* available for use if they are detected.
* This is the default mode.
*
* Note that AUTO is equivalent to ALWAYS for Android TVs and other
* devices that have an S/PDIF output. This is because S/PDIF
* is unidirectional and the TV cannot know if a decoder is
* connected. So it assumes they are always available.
* @hide
*/
public static final int ENCODED_SURROUND_OUTPUT_AUTO = 0;
/**
* AC3, DTS or IEC61937 are NEVER available, even if they
* are detected by the hardware. Those formats will not be
* reported.
*
* An example use case would be an AVR reports that it is capable of
* surround sound decoding but is broken. If NEVER is chosen
* then apps must use PCM output instead of encoded output.
* @hide
*/
public static final int ENCODED_SURROUND_OUTPUT_NEVER = 1;
/**
* AC3, DTS or IEC61937 are ALWAYS available, even if they
* are not detected by the hardware. Those formats will be
* reported as part of the HDMI output capability. Applications
* are then free to use either PCM or encoded output.
*
* An example use case would be a when TV was connected over
* TOS-link to an AVR. But the TV could not see it because TOS-link
* is unidirectional.
* @hide
*/
public static final int ENCODED_SURROUND_OUTPUT_ALWAYS = 2;
/**
* Set to ENCODED_SURROUND_OUTPUT_AUTO,
* ENCODED_SURROUND_OUTPUT_NEVER or
* ENCODED_SURROUND_OUTPUT_ALWAYS
* @hide
*/
public static final String ENCODED_SURROUND_OUTPUT = "encoded_surround_output";
/**
* Persisted safe headphone volume management state by AudioService
* @hide
@@ -8172,6 +8218,7 @@ public final class Settings {
EMERGENCY_TONE,
CALL_AUTO_RETRY,
DOCK_AUDIO_MEDIA_ENABLED,
ENCODED_SURROUND_OUTPUT,
LOW_POWER_MODE_TRIGGER_LEVEL
};