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media: Add new key for latency support

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Test: NONE
Bug: 34221970
Change-Id: Id2d64f9be6bffaff1897079b5132388046882334
This commit is contained in:
Hangyu Kuang
2017-02-23 15:08:52 -08:00
parent eba6e6c7dc
commit cd923a219f
4 changed files with 16 additions and 0 deletions
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1
api/current.txt
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@@ -22164,6 +22164,7 @@ package android.media {
field public static final java.lang.String KEY_IS_FORCED_SUBTITLE = "is-forced-subtitle";
field public static final java.lang.String KEY_I_FRAME_INTERVAL = "i-frame-interval";
field public static final java.lang.String KEY_LANGUAGE = "language";
field public static final java.lang.String KEY_LATENCY = "latency";
field public static final java.lang.String KEY_LEVEL = "level";
field public static final java.lang.String KEY_MAX_HEIGHT = "max-height";
field public static final java.lang.String KEY_MAX_INPUT_SIZE = "max-input-size";

1
api/system-current.txt
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@@ -23852,6 +23852,7 @@ package android.media {
field public static final java.lang.String KEY_IS_FORCED_SUBTITLE = "is-forced-subtitle";
field public static final java.lang.String KEY_I_FRAME_INTERVAL = "i-frame-interval";
field public static final java.lang.String KEY_LANGUAGE = "language";
field public static final java.lang.String KEY_LATENCY = "latency";
field public static final java.lang.String KEY_LEVEL = "level";
field public static final java.lang.String KEY_MAX_HEIGHT = "max-height";
field public static final java.lang.String KEY_MAX_INPUT_SIZE = "max-input-size";

1
api/test-current.txt
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@@ -22260,6 +22260,7 @@ package android.media {
field public static final java.lang.String KEY_IS_FORCED_SUBTITLE = "is-forced-subtitle";
field public static final java.lang.String KEY_I_FRAME_INTERVAL = "i-frame-interval";
field public static final java.lang.String KEY_LANGUAGE = "language";
field public static final java.lang.String KEY_LATENCY = "latency";
field public static final java.lang.String KEY_LEVEL = "level";
field public static final java.lang.String KEY_MAX_HEIGHT = "max-height";
field public static final java.lang.String KEY_MAX_INPUT_SIZE = "max-input-size";

13
media/java/android/media/MediaFormat.java
View File

@@ -53,6 +53,7 @@ import java.util.Map;
* time-interval between key frames.
* Float support added in {@link android.os.Build.VERSION_CODES#N_MR1}</td></tr>
* <tr><td>{@link #KEY_INTRA_REFRESH_PERIOD}</td><td>Integer</td><td><b>encoder-only</b>, optional</td></tr>
* <tr><td>{@link #KEY_LATENCY}</td><td>Integer</td><td><b>encoder-only</b>, optional</td></tr>
* <tr><td>{@link #KEY_MAX_WIDTH}</td><td>Integer</td><td><b>decoder-only</b>, optional, max-resolution width</td></tr>
* <tr><td>{@link #KEY_MAX_HEIGHT}</td><td>Integer</td><td><b>decoder-only</b>, optional, max-resolution height</td></tr>
* <tr><td>{@link #KEY_REPEAT_PREVIOUS_FRAME_AFTER}</td><td>Long</td><td><b>encoder in surface-mode
@@ -576,6 +577,18 @@ public final class MediaFormat {
*/
public static final String KEY_LEVEL = "level";
/**
* An optional key describing the desired encoder latency in frames. This is an optional
* parameter that applies only to video encoders. If encoder supports it, it should ouput
* at least one output frame after being queued the specified number of frames. This key
* is ignored if the video encoder does not support the latency feature. Use the output
* format to verify that this feature was enabled and the actual value used by the encoder.
* <p>
* If the key is not specified, the default latency will be implenmentation specific.
* The associated value is an integer.
*/
public static final String KEY_LATENCY = "latency";
/**
* A key describing the desired clockwise rotation on an output surface.
* This key is only used when the codec is configured using an output surface.