diff --git a/api/current.txt b/api/current.txt
index 2670279ae917b..591eeb3ffac49 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -16805,6 +16805,7 @@ package android.hardware {
     field public static final long USAGE_PROTECTED_CONTENT = 16384L; // 0x4000L
     field public static final long USAGE_SENSOR_DIRECT_DATA = 8388608L; // 0x800000L
     field public static final long USAGE_VIDEO_ENCODE = 65536L; // 0x10000L
+    field public static final int YCBCR_420_888 = 35; // 0x23
   }
 
   public final class Sensor {
@@ -25205,6 +25206,7 @@ package android.media {
     method @NonNull public android.media.MediaCodec.OutputFrame getOutputFrame(int);
     method @Nullable public android.media.Image getOutputImage(int);
     method @NonNull public android.media.MediaCodec.QueueRequest getQueueRequest(int);
+    method @Nullable public static android.media.Image mapHardwareBuffer(@NonNull android.hardware.HardwareBuffer);
     method public void queueInputBuffer(int, int, int, long, int) throws android.media.MediaCodec.CryptoException;
     method public void queueSecureInputBuffer(int, int, @NonNull android.media.MediaCodec.CryptoInfo, long, int) throws android.media.MediaCodec.CryptoException;
     method public void release();
@@ -25305,17 +25307,7 @@ package android.media {
     method public void set(int, int);
   }
 
-  public static final class MediaCodec.GraphicBlock {
-    method protected void finalize();
-    method public static boolean isCodecCopyFreeCompatible(@NonNull String[]);
-    method public boolean isMappable();
-    method @NonNull public android.media.Image map();
-    method @NonNull public static android.media.MediaCodec.GraphicBlock obtain(int, int, int, long, @NonNull String[]);
-    method public void recycle();
-  }
-
   public class MediaCodec.IncompatibleWithBlockModelException extends java.lang.RuntimeException {
-    ctor public MediaCodec.IncompatibleWithBlockModelException();
   }
 
   public static final class MediaCodec.LinearBlock {
@@ -25345,12 +25337,12 @@ package android.media {
   }
 
   public static final class MediaCodec.OutputFrame {
+    method @NonNull public java.util.Set<java.lang.String> getChangedKeys();
     method public int getFlags();
     method @NonNull public android.media.MediaFormat getFormat();
-    method @Nullable public android.media.MediaCodec.GraphicBlock getGraphicBlock();
+    method @Nullable public android.hardware.HardwareBuffer getHardwareBuffer();
     method @Nullable public android.media.MediaCodec.LinearBlock getLinearBlock();
     method public long getPresentationTimeUs();
-    method public void retrieveChangedKeys(@NonNull java.util.Set<java.lang.String>);
   }
 
   public final class MediaCodec.QueueRequest {
@@ -25358,7 +25350,7 @@ package android.media {
     method @NonNull public android.media.MediaCodec.QueueRequest setByteBufferParameter(@NonNull String, @NonNull java.nio.ByteBuffer);
     method @NonNull public android.media.MediaCodec.QueueRequest setFlags(int);
     method @NonNull public android.media.MediaCodec.QueueRequest setFloatParameter(@NonNull String, float);
-    method @NonNull public android.media.MediaCodec.QueueRequest setGraphicBlock(@NonNull android.media.MediaCodec.GraphicBlock);
+    method @NonNull public android.media.MediaCodec.QueueRequest setHardwareBuffer(@NonNull android.hardware.HardwareBuffer);
     method @NonNull public android.media.MediaCodec.QueueRequest setIntegerParameter(@NonNull String, int);
     method @NonNull public android.media.MediaCodec.QueueRequest setLinearBlock(@NonNull android.media.MediaCodec.LinearBlock, int, int, @Nullable android.media.MediaCodec.CryptoInfo);
     method @NonNull public android.media.MediaCodec.QueueRequest setLongParameter(@NonNull String, long);
diff --git a/core/java/android/hardware/HardwareBuffer.java b/core/java/android/hardware/HardwareBuffer.java
index e97a5b9e89ea0..dd3493063e287 100644
--- a/core/java/android/hardware/HardwareBuffer.java
+++ b/core/java/android/hardware/HardwareBuffer.java
@@ -46,7 +46,7 @@ import java.lang.annotation.RetentionPolicy;
 public final class HardwareBuffer implements Parcelable, AutoCloseable {
     /** @hide */
     @Retention(RetentionPolicy.SOURCE)
-    @IntDef(prefix = { "RGB", "BLOB", "D_", "DS_", "S_" }, value = {
+    @IntDef(prefix = { "RGB", "BLOB", "YCBCR_", "D_", "DS_", "S_" }, value = {
             RGBA_8888,
             RGBA_FP16,
             RGBA_1010102,
@@ -54,6 +54,7 @@ public final class HardwareBuffer implements Parcelable, AutoCloseable {
             RGB_888,
             RGB_565,
             BLOB,
+            YCBCR_420_888,
             D_16,
             D_24,
             DS_24UI8,
@@ -79,6 +80,8 @@ public final class HardwareBuffer implements Parcelable, AutoCloseable {
     public static final int RGBA_1010102 = 0x2b;
     /** Format: opaque format used for raw data transfer; must have a height of 1 */
     public static final int BLOB         = 0x21;
+    /** Format: Planar YCbCr 420; must have an even width and height */
+    public static final int YCBCR_420_888 = 0x23;
     /** Format: 16 bits depth */
     public static final int D_16         = 0x30;
     /** Format: 24 bits depth */
@@ -396,6 +399,7 @@ public final class HardwareBuffer implements Parcelable, AutoCloseable {
             case RGB_565:
             case RGB_888:
             case BLOB:
+            case YCBCR_420_888:
             case D_16:
             case D_24:
             case DS_24UI8:
diff --git a/media/java/android/media/MediaCodec.java b/media/java/android/media/MediaCodec.java
index f800f9ee91c9a..c0461bc598ed2 100644
--- a/media/java/android/media/MediaCodec.java
+++ b/media/java/android/media/MediaCodec.java
@@ -42,7 +42,9 @@ import java.nio.ByteOrder;
 import java.nio.ReadOnlyBufferException;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Collections;
 import java.util.HashMap;
+import java.util.HashSet;
 import java.util.Map;
 import java.util.Set;
 import java.util.concurrent.BlockingQueue;
@@ -1957,7 +1959,7 @@ final public class MediaCodec {
 
     /**
      * If this codec is to be used with {@link LinearBlock} and/or {@link
-     * GraphicBlock}, pass this flag.
+     * HardwareBuffer}, pass this flag.
      * <p>
      * When this flag is set, the following APIs throw {@link IncompatibleWithBlockModelException}.
      * <ul>
@@ -1989,6 +1991,19 @@ final public class MediaCodec {
      * Thrown when the codec is configured for block model and an incompatible API is called.
      */
     public class IncompatibleWithBlockModelException extends RuntimeException {
+        IncompatibleWithBlockModelException() { }
+
+        IncompatibleWithBlockModelException(String message) {
+            super(message);
+        }
+
+        IncompatibleWithBlockModelException(String message, Throwable cause) {
+            super(message, cause);
+        }
+
+        IncompatibleWithBlockModelException(Throwable cause) {
+            super(cause);
+        }
     }
 
     /**
@@ -2532,7 +2547,9 @@ final public class MediaCodec {
         throws CryptoException {
         synchronized(mBufferLock) {
             if (mBufferMode == BUFFER_MODE_BLOCK) {
-                throw new IncompatibleWithBlockModelException();
+                throw new IncompatibleWithBlockModelException("queueInputBuffer() "
+                        + "is not compatible with CONFIGURE_FLAG_USE_BLOCK_MODEL. "
+                        + "Please use getQueueRequest() to queue buffers");
             }
             invalidateByteBuffer(mCachedInputBuffers, index);
             mDequeuedInputBuffers.remove(index);
@@ -2784,7 +2801,9 @@ final public class MediaCodec {
             int flags) throws CryptoException {
         synchronized(mBufferLock) {
             if (mBufferMode == BUFFER_MODE_BLOCK) {
-                throw new IncompatibleWithBlockModelException();
+                throw new IncompatibleWithBlockModelException("queueSecureInputBuffer() "
+                        + "is not compatible with CONFIGURE_FLAG_USE_BLOCK_MODEL. "
+                        + "Please use getQueueRequest() to queue buffers");
             }
             invalidateByteBuffer(mCachedInputBuffers, index);
             mDequeuedInputBuffers.remove(index);
@@ -2819,7 +2838,9 @@ final public class MediaCodec {
     public final int dequeueInputBuffer(long timeoutUs) {
         synchronized (mBufferLock) {
             if (mBufferMode == BUFFER_MODE_BLOCK) {
-                throw new IncompatibleWithBlockModelException();
+                throw new IncompatibleWithBlockModelException("dequeueInputBuffer() "
+                        + "is not compatible with CONFIGURE_FLAG_USE_BLOCK_MODEL. "
+                        + "Please use MediaCodec.Callback objectes to get input buffer slots.");
             }
         }
         int res = native_dequeueInputBuffer(timeoutUs);
@@ -2989,179 +3010,22 @@ final public class MediaCodec {
     }
 
     /**
-     * Section of memory that represents a graphic block. Applications may
-     * acquire a block via {@link GraphicBlock#obtain} and queue
-     * the block as an input buffer to a codec, or get a block allocated by
-     * codec as an output buffer from {@link OutputFrame}.
+     * Map a {@link HardwareBuffer} object into {@link Image}, so that the content of the buffer is
+     * accessible. Depending on the usage and pixel format of the hardware buffer, it may not be
+     * mappable; this method returns null in that case.
      *
-     * {@see QueueRequest#setGraphicBlock}
-     * {@see OutputFrame#getGraphicBlock}
+     * @param hardwareBuffer {@link HardwareBuffer} to map.
+     * @return Mapped {@link Image} object, or null if the buffer is not mappable.
      */
-    public static final class GraphicBlock {
-        // No public constructors.
-        private GraphicBlock() {}
-
-        /**
-         * Returns true if the buffer is mappable.
-         * @throws IllegalStateException if invalid
-         */
-        public boolean isMappable() {
-            synchronized (mLock) {
-                if (!mValid) {
-                    throw new IllegalStateException("The graphic block is invalid");
-                }
-                return mMappable;
-            }
-        }
-
-        /**
-         * Map the memory and return the mapped region.
-         * <p>
-         * Calling {@link #recycle} or
-         * {@link QueueRequest#setGraphicBlock} causes the returned
-         * {@link Image} object to be closed, if not already.
-         *
-         * @return mapped memory region as {@link Image} object
-         * @throws IllegalStateException if not mappable or invalid
-         */
-        public @NonNull Image map() {
-            synchronized (mLock) {
-                if (!mValid) {
-                    throw new IllegalStateException("The graphic block is invalid");
-                }
-                if (!mMappable) {
-                    throw new IllegalStateException("The graphic block is not mappable");
-                }
-                if (mMapped == null) {
-                    mMapped = native_map();
-                }
-                return mMapped;
-            }
-        }
-
-        private native Image native_map();
-
-        /**
-         * Mark this block as ready to be recycled by the framework once it is
-         * no longer in use. All operations to this object after
-         * this call will cause exceptions, as well as attempt to access the
-         * previously mapped memory region. Caller should clear all references
-         * to this object after this call.
-         * <p>
-         * To avoid excessive memory consumption, it is recommended that callers
-         * recycle buffers as soon as they no longer need the buffers.
-         *
-         * @throws IllegalStateException if invalid
-         */
-        public void recycle() {
-            synchronized (mLock) {
-                if (!mValid) {
-                    throw new IllegalStateException("The graphic block is invalid");
-                }
-                if (mMapped != null) {
-                    mMapped.close();
-                    mMapped = null;
-                }
-                native_recycle();
-                mValid = false;
-                mNativeContext = 0;
-            }
-            sPool.offer(this);
-        }
-
-        private native void native_recycle();
-
-        /**
-         * Returns true if it is possible to allocate a graphic block that
-         * can be passed to all listed codecs as an input buffer without
-         * copying.
-         * <p>
-         * Note that even if this function returns true, {@link #obtain}
-         * may still throw due to invalid arguments or allocation failure.
-         * In addition, choosing a format that is not natively supported by the
-         * codec may cause color conversion.
-         *
-         * @param codecNames  list of codecs that the client wants to use a
-         *                    graphic block without copying. Null entries are
-         *                    ignored.
-         */
-        public static boolean isCodecCopyFreeCompatible(@NonNull String[] codecNames) {
-            return native_checkCompatible(codecNames);
-        }
-
-        private static native boolean native_checkCompatible(@NonNull String[] codecNames);
-
-        // Called from native
-        private void setInternalStateLocked(long context, boolean isMappable) {
-            mNativeContext = context;
-            mMappable = isMappable;
-            mValid = (context != 0);
-        }
-
-        private static final BlockingQueue<GraphicBlock> sPool =
-                new LinkedBlockingQueue<>();
-
-        /**
-         * Obtain a graphic block object of dimension
-         * {@code width}x{@code height}.
-         * If {@link #isCodecCopyFreeCompatible} with the same
-         * {@code codecNames} returned true, the returned
-         * {@link GraphicBlock} object can be queued to the listed codecs
-         * without copying. The returned {@link GraphicBlock} object is always
-         * read/write mappable.
-         *
-         * @param width requested width of the graphic block
-         * @param height requested height of the graphic block
-         * @param format the format of pixels. One of the {@code COLOR_Format}
-         *               values from {@link MediaCodecInfo.CodecCapabilities}.
-         * @param usage the usage of the buffer. @HardwareBuffer.Usage
-         * @param codecNames  list of codecs that the client wants to use this
-         *                    graphic block without copying. Null entries are
-         *                    ignored.
-         * @return  a graphic block object.
-         * @throws IllegalArgumentException if the parameters are invalid or
-         *     not supported
-         * @throws IOException if an error occurred while allocating a buffer
-         */
-        public static @NonNull GraphicBlock obtain(
-                int width,
-                int height,
-                int format,
-                @HardwareBuffer.Usage long usage,
-                @NonNull String[] codecNames) {
-            GraphicBlock buffer = sPool.poll();
-            if (buffer == null) {
-                buffer = new GraphicBlock();
-            }
-            if (width <= 0 || height <= 0) {
-                throw new IllegalArgumentException(
-                        "non-positive width or height: " + width + "x" + height);
-            }
-            synchronized (buffer.mLock) {
-                buffer.native_obtain(width, height, format, usage, codecNames);
-            }
-            return buffer;
-        }
-
-        private native void native_obtain(
-                int width,
-                int height,
-                int format,
-                @HardwareBuffer.Usage long usage,
-                @NonNull String[] codecNames);
-
-        @Override
-        protected void finalize() {
-            native_recycle();
-        }
-
-        private final Object mLock = new Object();
-        private boolean mValid = false;
-        private boolean mMappable = false;
-        private Image mMapped = null;
-        private long mNativeContext = 0;
+    public static @Nullable Image mapHardwareBuffer(@NonNull HardwareBuffer hardwareBuffer) {
+        return native_mapHardwareBuffer(hardwareBuffer);
     }
 
+    private static native @Nullable Image native_mapHardwareBuffer(
+            @NonNull HardwareBuffer hardwareBuffer);
+
+    private static native void native_closeMediaImage(long context);
+
     /**
      * Builder-like class for queue requests. Use this class to prepare a
      * queue request and send it.
@@ -3185,7 +3049,7 @@ final public class MediaCodec {
          * @param offset The byte offset into the input buffer at which the data starts.
          * @param size The number of bytes of valid input data.
          * @param cryptoInfo Metadata describing the structure of the encrypted input sample.
-         *                   may be null if clear.
+         *                   may be null for non-encrypted content.
          * @return this object
          * @throws IllegalStateException if a buffer is already set
          */
@@ -3197,7 +3061,7 @@ final public class MediaCodec {
             if (!isAccessible()) {
                 throw new IllegalStateException("The request is stale");
             }
-            if (mLinearBlock != null || mGraphicBlock != null) {
+            if (mLinearBlock != null || mHardwareBuffer != null) {
                 throw new IllegalStateException("Cannot set block twice");
             }
             mLinearBlock = block;
@@ -3208,22 +3072,27 @@ final public class MediaCodec {
         }
 
         /**
-         * Set a graphic block to this queue request. Exactly one buffer must
+         * Set a harware graphic buffer to this queue request. Exactly one buffer must
          * be set for a queue request before calling {@link #queue}.
+         * <p>
+         * Note: buffers should have format {@link HardwareBuffer#YCBCR_420_888},
+         * a single layer, and an appropriate usage ({@link HardwareBuffer#USAGE_CPU_READ_OFTEN}
+         * for software codecs and {@link HardwareBuffer#USAGE_VIDEO_ENCODE} for hardware)
+         * for codecs to recognize.  Codecs may throw exception if the buffer is not recognizable.
          *
-         * @param block The graphic block object
+         * @param buffer The hardware graphic buffer object
          * @return this object
          * @throws IllegalStateException if a buffer is already set
          */
-        public @NonNull QueueRequest setGraphicBlock(
-                @NonNull GraphicBlock block) {
+        public @NonNull QueueRequest setHardwareBuffer(
+                @NonNull HardwareBuffer buffer) {
             if (!isAccessible()) {
                 throw new IllegalStateException("The request is stale");
             }
-            if (mLinearBlock != null || mGraphicBlock != null) {
+            if (mLinearBlock != null || mHardwareBuffer != null) {
                 throw new IllegalStateException("Cannot set block twice");
             }
-            mGraphicBlock = block;
+            mHardwareBuffer = buffer;
             return this;
         }
 
@@ -3375,7 +3244,7 @@ final public class MediaCodec {
             if (!isAccessible()) {
                 throw new IllegalStateException("The request is stale");
             }
-            if (mLinearBlock == null && mGraphicBlock == null) {
+            if (mLinearBlock == null && mHardwareBuffer == null) {
                 throw new IllegalStateException("No block is set");
             }
             setAccessible(false);
@@ -3384,9 +3253,9 @@ final public class MediaCodec {
                         mIndex, mLinearBlock, mOffset, mSize, mCryptoInfo,
                         mPresentationTimeUs, mFlags,
                         mTuningKeys, mTuningValues);
-            } else if (mGraphicBlock != null) {
-                mCodec.native_queueGraphicBlock(
-                        mIndex, mGraphicBlock, mPresentationTimeUs, mFlags,
+            } else if (mHardwareBuffer != null) {
+                mCodec.native_queueHardwareBuffer(
+                        mIndex, mHardwareBuffer, mPresentationTimeUs, mFlags,
                         mTuningKeys, mTuningValues);
             }
             clear();
@@ -3397,7 +3266,7 @@ final public class MediaCodec {
             mOffset = 0;
             mSize = 0;
             mCryptoInfo = null;
-            mGraphicBlock = null;
+            mHardwareBuffer = null;
             mPresentationTimeUs = 0;
             mFlags = 0;
             mTuningKeys.clear();
@@ -3420,7 +3289,7 @@ final public class MediaCodec {
         private int mOffset = 0;
         private int mSize = 0;
         private MediaCodec.CryptoInfo mCryptoInfo = null;
-        private GraphicBlock mGraphicBlock = null;
+        private HardwareBuffer mHardwareBuffer = null;
         private long mPresentationTimeUs = 0;
         private @BufferFlag int mFlags = 0;
         private final ArrayList<String> mTuningKeys = new ArrayList<>();
@@ -3440,9 +3309,9 @@ final public class MediaCodec {
             @NonNull ArrayList<String> keys,
             @NonNull ArrayList<Object> values);
 
-    private native void native_queueGraphicBlock(
+    private native void native_queueHardwareBuffer(
             int index,
-            @NonNull GraphicBlock block,
+            @NonNull HardwareBuffer buffer,
             long presentationTimeUs,
             int flags,
             @NonNull ArrayList<String> keys,
@@ -3535,7 +3404,9 @@ final public class MediaCodec {
             @NonNull BufferInfo info, long timeoutUs) {
         synchronized (mBufferLock) {
             if (mBufferMode == BUFFER_MODE_BLOCK) {
-                throw new IncompatibleWithBlockModelException();
+                throw new IncompatibleWithBlockModelException("dequeueOutputBuffer() "
+                        + "is not compatible with CONFIGURE_FLAG_USE_BLOCK_MODEL. "
+                        + "Please use MediaCodec.Callback objects to get output buffer slots.");
             }
         }
         int res = native_dequeueOutputBuffer(info, timeoutUs);
@@ -3917,7 +3788,10 @@ final public class MediaCodec {
     public ByteBuffer[] getInputBuffers() {
         synchronized (mBufferLock) {
             if (mBufferMode == BUFFER_MODE_BLOCK) {
-                throw new IncompatibleWithBlockModelException();
+                throw new IncompatibleWithBlockModelException("getInputBuffers() "
+                        + "is not compatible with CONFIGURE_FLAG_USE_BLOCK_MODEL. "
+                        + "Please obtain MediaCodec.LinearBlock or HardwareBuffer "
+                        + "objects and attach to QueueRequest objects.");
             }
             if (mCachedInputBuffers == null) {
                 throw new IllegalStateException();
@@ -3953,7 +3827,9 @@ final public class MediaCodec {
     public ByteBuffer[] getOutputBuffers() {
         synchronized (mBufferLock) {
             if (mBufferMode == BUFFER_MODE_BLOCK) {
-                throw new IncompatibleWithBlockModelException();
+                throw new IncompatibleWithBlockModelException("getOutputBuffers() "
+                        + "is not compatible with CONFIGURE_FLAG_USE_BLOCK_MODEL. "
+                        + "Please use getOutputFrame to get output frames.");
             }
             if (mCachedOutputBuffers == null) {
                 throw new IllegalStateException();
@@ -3985,7 +3861,10 @@ final public class MediaCodec {
     public ByteBuffer getInputBuffer(int index) {
         synchronized (mBufferLock) {
             if (mBufferMode == BUFFER_MODE_BLOCK) {
-                throw new IncompatibleWithBlockModelException();
+                throw new IncompatibleWithBlockModelException("getInputBuffer() "
+                        + "is not compatible with CONFIGURE_FLAG_USE_BLOCK_MODEL. "
+                        + "Please obtain MediaCodec.LinearBlock or HardwareBuffer "
+                        + "objects and attach to QueueRequest objects.");
             }
         }
         ByteBuffer newBuffer = getBuffer(true /* input */, index);
@@ -4019,7 +3898,10 @@ final public class MediaCodec {
     public Image getInputImage(int index) {
         synchronized (mBufferLock) {
             if (mBufferMode == BUFFER_MODE_BLOCK) {
-                throw new IncompatibleWithBlockModelException();
+                throw new IncompatibleWithBlockModelException("getInputImage() "
+                        + "is not compatible with CONFIGURE_FLAG_USE_BLOCK_MODEL. "
+                        + "Please obtain MediaCodec.LinearBlock or HardwareBuffer "
+                        + "objects and attach to QueueRequest objects.");
             }
         }
         Image newImage = getImage(true /* input */, index);
@@ -4053,7 +3935,9 @@ final public class MediaCodec {
     public ByteBuffer getOutputBuffer(int index) {
         synchronized (mBufferLock) {
             if (mBufferMode == BUFFER_MODE_BLOCK) {
-                throw new IncompatibleWithBlockModelException();
+                throw new IncompatibleWithBlockModelException("getOutputBuffer() "
+                        + "is not compatible with CONFIGURE_FLAG_USE_BLOCK_MODEL. "
+                        + "Please use getOutputFrame() to get output frames.");
             }
         }
         ByteBuffer newBuffer = getBuffer(false /* input */, index);
@@ -4086,7 +3970,9 @@ final public class MediaCodec {
     public Image getOutputImage(int index) {
         synchronized (mBufferLock) {
             if (mBufferMode == BUFFER_MODE_BLOCK) {
-                throw new IncompatibleWithBlockModelException();
+                throw new IncompatibleWithBlockModelException("getOutputImage() "
+                        + "is not compatible with CONFIGURE_FLAG_USE_BLOCK_MODEL. "
+                        + "Please use getOutputFrame() to get output frames.");
             }
         }
         Image newImage = getImage(false /* input */, index);
@@ -4112,22 +3998,22 @@ final public class MediaCodec {
          * @throws IllegalStateException if this output frame is not linear.
          */
         public @Nullable LinearBlock getLinearBlock() {
-            if (mGraphicBlock != null) {
+            if (mHardwareBuffer != null) {
                 throw new IllegalStateException("This output frame is not linear");
             }
             return mLinearBlock;
         }
 
         /**
-         * Returns the output graphic block, or null if this frame is empty.
+         * Returns the output hardware graphic buffer, or null if this frame is empty.
          *
          * @throws IllegalStateException if this output frame is not graphic.
          */
-        public @Nullable GraphicBlock getGraphicBlock() {
+        public @Nullable HardwareBuffer getHardwareBuffer() {
             if (mLinearBlock != null) {
                 throw new IllegalStateException("This output frame is not graphic");
             }
-            return mGraphicBlock;
+            return mHardwareBuffer;
         }
 
         /**
@@ -4153,21 +4039,24 @@ final public class MediaCodec {
         }
 
         /**
-         * Populate {@code keys} with the name of entries that has changed from
+         * Returns an unmodifiable set of the names of entries that has changed from
          * the previous frame. The entries may have been removed/changed/added.
          * Client can find out what the change is by querying {@link MediaFormat}
          * object returned from {@link #getFormat}.
          */
-        public void retrieveChangedKeys(@NonNull Set<String> keys) {
-            keys.clear();
-            keys.addAll(mChangedKeys);
+        public @NonNull Set<String> getChangedKeys() {
+            if (mKeySet.isEmpty() && !mChangedKeys.isEmpty()) {
+                mKeySet.addAll(mChangedKeys);
+            }
+            return Collections.unmodifiableSet(mKeySet);
         }
 
         void clear() {
             mLinearBlock = null;
-            mGraphicBlock = null;
+            mHardwareBuffer = null;
             mFormat = null;
             mChangedKeys.clear();
+            mKeySet.clear();
             mLoaded = false;
         }
 
@@ -4194,11 +4083,12 @@ final public class MediaCodec {
 
         private final int mIndex;
         private LinearBlock mLinearBlock = null;
-        private GraphicBlock mGraphicBlock = null;
+        private HardwareBuffer mHardwareBuffer = null;
         private long mPresentationTimeUs = 0;
         private @BufferFlag int mFlags = 0;
         private MediaFormat mFormat = null;
         private final ArrayList<String> mChangedKeys = new ArrayList<>();
+        private final Set<String> mKeySet = new HashSet<>();
         private boolean mAccessible = false;
         private boolean mLoaded = false;
     }
@@ -4773,6 +4663,7 @@ final public class MediaCodec {
         private final ByteBuffer mInfo;
         private final int mXOffset;
         private final int mYOffset;
+        private final long mBufferContext;
 
         private final static int TYPE_YUV = 1;
 
@@ -4828,6 +4719,9 @@ final public class MediaCodec {
                 if (mBuffer != null) {
                     java.nio.NioUtils.freeDirectBuffer(mBuffer);
                 }
+                if (mBufferContext != 0) {
+                    native_closeMediaImage(mBufferContext);
+                }
                 mIsImageValid = false;
             }
         }
@@ -4860,6 +4754,8 @@ final public class MediaCodec {
             mYOffset = yOffset;
             mInfo = info;
 
+            mBufferContext = 0;
+
             // read media-info.  See MediaImage2
             if (info.remaining() == 104) {
                 int type = info.getInt();
@@ -4921,7 +4817,7 @@ final public class MediaCodec {
 
         public MediaImage(
                 @NonNull Image.Plane[] planes, int width, int height, int format, boolean readOnly,
-                long timestamp, int xOffset, int yOffset, @Nullable Rect cropRect) {
+                long timestamp, int xOffset, int yOffset, @Nullable Rect cropRect, long context) {
             mWidth = width;
             mHeight = height;
             mFormat = format;
@@ -4941,6 +4837,8 @@ final public class MediaCodec {
             }
             cropRect.offset(-xOffset, -yOffset);
             super.setCropRect(cropRect);
+
+            mBufferContext = context;
         }
 
         private class MediaPlane extends Plane {
diff --git a/media/jni/android_media_MediaCodec.cpp b/media/jni/android_media_MediaCodec.cpp
index 893e51654b682..fc9b91c76a4f7 100644
--- a/media/jni/android_media_MediaCodec.cpp
+++ b/media/jni/android_media_MediaCodec.cpp
@@ -34,10 +34,14 @@
 #include <nativehelper/JNIHelp.h>
 #include <nativehelper/ScopedLocalRef.h>
 
+#include <C2AllocatorGralloc.h>
+#include <C2BlockInternal.h>
 #include <C2Buffer.h>
 
 #include <android/hardware/cas/native/1.0/IDescrambler.h>
 
+#include <android_runtime/android_hardware_HardwareBuffer.h>
+
 #include <binder/MemoryHeapBase.h>
 
 #include <cutils/compiler.h>
@@ -58,6 +62,8 @@
 #include <media/stagefright/PersistentSurface.h>
 #include <mediadrm/ICrypto.h>
 
+#include <private/android/AHardwareBufferHelpers.h>
+
 #include <system/window.h>
 
 namespace android {
@@ -143,15 +149,6 @@ static struct {
     jfieldID lockId;
 } gLinearBlockInfo;
 
-static struct {
-    jclass clazz;
-    jmethodID ctorId;
-    jmethodID setInternalStateId;
-    jfieldID contextId;
-    jfieldID validId;
-    jfieldID lockId;
-} gGraphicBlockInfo;
-
 struct fields_t {
     jmethodID postEventFromNativeID;
     jmethodID lockAndGetContextID;
@@ -167,7 +164,7 @@ struct fields_t {
     jfieldID patternSkipBlocksID;
     jfieldID queueRequestIndexID;
     jfieldID outputFrameLinearBlockID;
-    jfieldID outputFrameGraphicBlockID;
+    jfieldID outputFrameHardwareBufferID;
     jfieldID outputFrameChangedKeysID;
     jfieldID outputFrameFormatID;
 };
@@ -176,16 +173,6 @@ static fields_t gFields;
 static const void *sRefBaseOwner;
 
 
-struct JMediaCodecGraphicBlock {
-    std::shared_ptr<C2Buffer> mBuffer;
-    std::shared_ptr<const C2GraphicView> mReadonlyMapping;
-
-    std::shared_ptr<C2GraphicBlock> mBlock;
-    std::shared_ptr<C2GraphicView> mReadWriteMapping;
-
-    sp<MediaCodecBuffer> mLegacyBuffer;
-};
-
 ////////////////////////////////////////////////////////////////////////////////
 
 JMediaCodec::JMediaCodec(
@@ -706,16 +693,22 @@ status_t JMediaCodec::getOutputFrame(
                     break;
                 }
                 case C2BufferData::GRAPHIC: {
-                    std::unique_ptr<JMediaCodecGraphicBlock> context{new JMediaCodecGraphicBlock};
-                    context->mBuffer = c2Buffer;
-                    ScopedLocalRef<jobject> graphicBlock{env, env->NewObject(
-                            gGraphicBlockInfo.clazz, gGraphicBlockInfo.ctorId)};
-                    env->CallVoidMethod(
-                            graphicBlock.get(),
-                            gGraphicBlockInfo.setInternalStateId,
-                            (jlong)context.release(),
-                            true);
-                    env->SetObjectField(frame, gFields.outputFrameGraphicBlockID, graphicBlock.get());
+                    const C2Handle *c2Handle = c2Buffer->data().graphicBlocks().front().handle();
+                    uint32_t width, height, format, stride, igbp_slot, generation;
+                    uint64_t usage, igbp_id;
+                    _UnwrapNativeCodec2GrallocMetadata(
+                            c2Handle, &width, &height, &format, &usage, &stride, &generation,
+                            &igbp_id, &igbp_slot);
+                    native_handle_t *grallocHandle = UnwrapNativeCodec2GrallocHandle(c2Handle);
+                    GraphicBuffer* graphicBuffer = new GraphicBuffer(
+                            grallocHandle, GraphicBuffer::CLONE_HANDLE,
+                            width, height, format, 1, usage, stride);
+                    ScopedLocalRef<jobject> hardwareBuffer{
+                        env,
+                        android_hardware_HardwareBuffer_createFromAHardwareBuffer(
+                                env, AHardwareBuffer_from_GraphicBuffer(graphicBuffer))};
+                    env->SetObjectField(
+                            frame, gFields.outputFrameHardwareBufferID, hardwareBuffer.get());
                     break;
                 }
                 case C2BufferData::LINEAR_CHUNKS:  [[fallthrough]];
@@ -737,16 +730,7 @@ status_t JMediaCodec::getOutputFrame(
                         true);
                 env->SetObjectField(frame, gFields.outputFrameLinearBlockID, linearBlock.get());
             } else {
-                std::unique_ptr<JMediaCodecGraphicBlock> context{new JMediaCodecGraphicBlock};
-                context->mLegacyBuffer = buffer;
-                ScopedLocalRef<jobject> graphicBlock{env, env->NewObject(
-                        gGraphicBlockInfo.clazz, gGraphicBlockInfo.ctorId)};
-                env->CallVoidMethod(
-                        graphicBlock.get(),
-                        gGraphicBlockInfo.setInternalStateId,
-                        (jlong)context.release(),
-                        true);
-                env->SetObjectField(frame, gFields.outputFrameGraphicBlockID, graphicBlock.get());
+                // No-op.
             }
         }
     }
@@ -1873,6 +1857,113 @@ static void android_media_MediaCodec_queueSecureInputBuffer(
             env, err, ACTION_CODE_FATAL, errorDetailMsg.empty() ? NULL : errorDetailMsg.c_str());
 }
 
+static jobject android_media_MediaCodec_mapHardwareBuffer(JNIEnv *env, jobject bufferObj) {
+    ALOGV("android_media_MediaCodec_mapHardwareBuffer");
+    AHardwareBuffer *hardwareBuffer = android_hardware_HardwareBuffer_getNativeHardwareBuffer(
+            env, bufferObj);
+    AHardwareBuffer_Desc desc;
+    AHardwareBuffer_describe(hardwareBuffer, &desc);
+    if (desc.format != AHARDWAREBUFFER_FORMAT_Y8Cb8Cr8_420) {
+        ALOGI("mapHardwareBuffer: unmappable format: %d", desc.format);
+        return nullptr;
+    }
+    if ((desc.usage & AHARDWAREBUFFER_USAGE_CPU_READ_MASK) == 0) {
+        ALOGI("mapHardwareBuffer: buffer not CPU readable");
+        return nullptr;
+    }
+    bool readOnly = ((desc.usage & AHARDWAREBUFFER_USAGE_CPU_WRITE_MASK) == 0);
+
+    uint64_t cpuUsage = desc.usage;
+    cpuUsage = (cpuUsage & AHARDWAREBUFFER_USAGE_CPU_READ_MASK);
+    cpuUsage = (cpuUsage & AHARDWAREBUFFER_USAGE_CPU_WRITE_MASK);
+
+    AHardwareBuffer_Planes planes;
+    int err = AHardwareBuffer_lockPlanes(
+            hardwareBuffer, cpuUsage, -1 /* fence */, nullptr /* rect */, &planes);
+    if (err != 0) {
+        ALOGI("mapHardwareBuffer: Failed to lock planes (err=%d)", err);
+        return nullptr;
+    }
+
+    if (planes.planeCount != 3) {
+        ALOGI("mapHardwareBuffer: planeCount expected 3, actual %u", planes.planeCount);
+        return nullptr;
+    }
+
+    ScopedLocalRef<jclass> planeClazz(
+            env, env->FindClass("android/media/MediaCodec$MediaImage$MediaPlane"));
+    ScopedLocalRef<jobjectArray> planeArray{
+            env, env->NewObjectArray(3, planeClazz.get(), NULL)};
+    CHECK(planeClazz.get() != NULL);
+    jmethodID planeConstructID = env->GetMethodID(planeClazz.get(), "<init>",
+            "([Ljava/nio/ByteBuffer;IIIII)V");
+
+    // plane indices are Y-U-V.
+    for (uint32_t i = 0; i < 3; ++i) {
+        const AHardwareBuffer_Plane &plane = planes.planes[i];
+        ScopedLocalRef<jobject> byteBuffer{env, CreateByteBuffer(
+                env,
+                plane.data,
+                plane.rowStride * (desc.height - 1) + plane.pixelStride * (desc.width - 1) + 1,
+                0,
+                plane.rowStride * (desc.height - 1) + plane.pixelStride * (desc.width - 1) + 1,
+                readOnly,
+                true)};
+
+        ScopedLocalRef<jobject> planeObj{env, env->NewObject(
+                planeClazz.get(), planeConstructID,
+                byteBuffer.get(), plane.rowStride, plane.pixelStride)};
+
+        env->SetObjectArrayElement(planeArray.get(), i, planeObj.get());
+    }
+
+    ScopedLocalRef<jclass> imageClazz(
+            env, env->FindClass("android/media/MediaCodec$MediaImage"));
+    CHECK(imageClazz.get() != NULL);
+
+    jmethodID imageConstructID = env->GetMethodID(imageClazz.get(), "<init>",
+            "([Landroid/media/Image$Plane;IIIZJIILandroid/graphics/Rect;J)V");
+
+    jobject img = env->NewObject(imageClazz.get(), imageConstructID,
+            planeArray.get(),
+            desc.width,
+            desc.height,
+            desc.format, // ???
+            (jboolean)readOnly /* readOnly */,
+            (jlong)0 /* timestamp */,
+            (jint)0 /* xOffset */, (jint)0 /* yOffset */, nullptr /* cropRect */,
+            (jlong)hardwareBuffer);
+
+    // if MediaImage creation fails, return null
+    if (env->ExceptionCheck()) {
+        env->ExceptionDescribe();
+        env->ExceptionClear();
+        return nullptr;
+    }
+
+    AHardwareBuffer_acquire(hardwareBuffer);
+
+    return img;
+}
+
+static void android_media_MediaCodec_closeMediaImage(JNIEnv *, jlong context) {
+    if (context == 0) {
+        return;
+    }
+    AHardwareBuffer *hardwareBuffer = (AHardwareBuffer *)context;
+
+    int32_t fenceFd = -1;
+    int err = AHardwareBuffer_unlock(hardwareBuffer, &fenceFd);
+    if (err == 0) {
+        sp<Fence> fence{new Fence(fenceFd)};
+    } else {
+        ALOGI("closeMediaImage: failed to unlock (err=%d)", err);
+        // Continue to release the hardwareBuffer
+    }
+
+    AHardwareBuffer_release(hardwareBuffer);
+}
+
 static status_t ConvertKeyValueListsToAMessage(
         JNIEnv *env, jobject keys, jobject values, sp<AMessage> *msg) {
     static struct Fields {
@@ -2031,11 +2122,6 @@ static void android_media_MediaCodec_native_queueLinearBlock(
         }
 
         NativeCryptoInfo cryptoInfo{env, cryptoInfoObj};
-        size_t cryptoSize = 0;
-        for (int i = 0; i < cryptoInfo.mNumSubSamples; ++i) {
-            cryptoSize += cryptoInfo.mSubSamples[i].mNumBytesOfClearData;
-            cryptoSize += cryptoInfo.mSubSamples[i].mNumBytesOfEncryptedData;
-        }
         err = codec->queueEncryptedLinearBlock(
                 index,
                 memory,
@@ -2059,10 +2145,10 @@ static void android_media_MediaCodec_native_queueLinearBlock(
     throwExceptionAsNecessary(env, err, ACTION_CODE_FATAL, errorDetailMsg.c_str());
 }
 
-static void android_media_MediaCodec_native_queueGraphicBlock(
+static void android_media_MediaCodec_native_queueHardwareBuffer(
         JNIEnv *env, jobject thiz, jint index, jobject bufferObj,
         jlong presentationTimeUs, jint flags, jobject keys, jobject values) {
-    ALOGV("android_media_MediaCodec_native_queueGraphicBlock");
+    ALOGV("android_media_MediaCodec_native_queueHardwareBuffer");
 
     sp<JMediaCodec> codec = getMediaCodec(env, thiz);
 
@@ -2078,29 +2164,21 @@ static void android_media_MediaCodec_native_queueGraphicBlock(
         return;
     }
 
-    std::shared_ptr<C2Buffer> buffer;
-    std::shared_ptr<C2GraphicBlock> block;
-    ScopedLocalRef<jobject> lock{env, env->GetObjectField(bufferObj, gGraphicBlockInfo.lockId)};
-    if (env->MonitorEnter(lock.get()) == JNI_OK) {
-        if (env->GetBooleanField(bufferObj, gGraphicBlockInfo.validId)) {
-            JMediaCodecGraphicBlock *context = (JMediaCodecGraphicBlock *)env->GetLongField(
-                    bufferObj, gGraphicBlockInfo.contextId);
-            buffer = context->mBuffer;
-            block = context->mBlock;
-        }
-        env->MonitorExit(lock.get());
-    } else {
-        throwExceptionAsNecessary(env, INVALID_OPERATION);
-        return;
-    }
+    AHardwareBuffer *hardwareBuffer = android_hardware_HardwareBuffer_getNativeHardwareBuffer(
+            env, bufferObj);
+    sp<GraphicBuffer> graphicBuffer{AHardwareBuffer_to_GraphicBuffer(hardwareBuffer)};
+    C2Handle *handle = WrapNativeCodec2GrallocHandle(
+            graphicBuffer->handle, graphicBuffer->format,
+            graphicBuffer->width, graphicBuffer->height,
+            graphicBuffer->usage, graphicBuffer->stride);
+    std::shared_ptr<C2GraphicBlock> block = _C2BlockFactory::CreateGraphicBlock(handle);
 
-    if (!block && !buffer) {
+    if (!block) {
         throwExceptionAsNecessary(env, BAD_VALUE);
         return;
     }
-    if (!buffer) {
-        buffer = C2Buffer::CreateGraphicBuffer(block->share(block->crop(), C2Fence{}));
-    }
+    std::shared_ptr<C2Buffer> buffer = C2Buffer::CreateGraphicBuffer(block->share(
+            block->crop(), C2Fence{}));
     AString errorDetailMsg;
     err = codec->queueBuffer(index, buffer, presentationTimeUs, flags, tunings, &errorDetailMsg);
     throwExceptionAsNecessary(env, err, ACTION_CODE_FATAL, errorDetailMsg.c_str());
@@ -2534,9 +2612,9 @@ static void android_media_MediaCodec_native_init(JNIEnv *env) {
         env->GetFieldID(clazz.get(), "mLinearBlock", "Landroid/media/MediaCodec$LinearBlock;");
     CHECK(gFields.outputFrameLinearBlockID != NULL);
 
-    gFields.outputFrameGraphicBlockID =
-        env->GetFieldID(clazz.get(), "mGraphicBlock", "Landroid/media/MediaCodec$GraphicBlock;");
-    CHECK(gFields.outputFrameGraphicBlockID != NULL);
+    gFields.outputFrameHardwareBufferID =
+        env->GetFieldID(clazz.get(), "mHardwareBuffer", "Landroid/hardware/HardwareBuffer;");
+    CHECK(gFields.outputFrameHardwareBufferID != NULL);
 
     gFields.outputFrameChangedKeysID =
         env->GetFieldID(clazz.get(), "mChangedKeys", "Ljava/util/ArrayList;");
@@ -2729,27 +2807,6 @@ static void android_media_MediaCodec_native_init(JNIEnv *env) {
 
     gLinearBlockInfo.lockId = env->GetFieldID(clazz.get(), "mLock", "Ljava/lang/Object;");
     CHECK(gLinearBlockInfo.lockId != NULL);
-
-    clazz.reset(env->FindClass("android/media/MediaCodec$GraphicBlock"));
-    CHECK(clazz.get() != NULL);
-
-    gGraphicBlockInfo.clazz = (jclass)env->NewGlobalRef(clazz.get());
-
-    gGraphicBlockInfo.ctorId = env->GetMethodID(clazz.get(), "<init>", "()V");
-    CHECK(gGraphicBlockInfo.ctorId != NULL);
-
-    gGraphicBlockInfo.setInternalStateId = env->GetMethodID(
-            clazz.get(), "setInternalStateLocked", "(JZ)V");
-    CHECK(gGraphicBlockInfo.setInternalStateId != NULL);
-
-    gGraphicBlockInfo.contextId = env->GetFieldID(clazz.get(), "mNativeContext", "J");
-    CHECK(gGraphicBlockInfo.contextId != NULL);
-
-    gGraphicBlockInfo.validId = env->GetFieldID(clazz.get(), "mValid", "Z");
-    CHECK(gGraphicBlockInfo.validId != NULL);
-
-    gGraphicBlockInfo.lockId = env->GetFieldID(clazz.get(), "mLock", "Ljava/lang/Object;");
-    CHECK(gGraphicBlockInfo.lockId != NULL);
 }
 
 static void android_media_MediaCodec_native_setup(
@@ -2949,196 +3006,6 @@ static jboolean android_media_MediaCodec_LinearBlock_checkCompatible(
     return isCompatible;
 }
 
-// MediaCodec.GraphicBlock
-
-template <class T>
-static jobject CreateImage(JNIEnv *env, const std::shared_ptr<T> &view) {
-    bool readOnly = std::is_const<T>::value;
-    const C2PlanarLayout layout = view->layout();
-    jint format = HAL_PIXEL_FORMAT_YCBCR_420_888;
-    switch (layout.type) {
-        case C2PlanarLayout::TYPE_YUV: {
-            if (layout.numPlanes != 3) {
-                throwExceptionAsNecessary(env, INVALID_OPERATION);
-                return nullptr;
-            }
-            const C2PlaneInfo & yPlane = layout.planes[C2PlanarLayout::PLANE_Y];
-            const C2PlaneInfo & uPlane = layout.planes[C2PlanarLayout::PLANE_U];
-            const C2PlaneInfo & vPlane = layout.planes[C2PlanarLayout::PLANE_V];
-            if (yPlane.rowSampling != 1 || yPlane.colSampling != 1) {
-                throwExceptionAsNecessary(env, INVALID_OPERATION);
-                return nullptr;
-            }
-            if (uPlane.rowSampling != vPlane.rowSampling
-                    || uPlane.colSampling != vPlane.colSampling) {
-                throwExceptionAsNecessary(env, INVALID_OPERATION);
-                return nullptr;
-            }
-            if (uPlane.rowSampling == 2 && uPlane.colSampling == 2) {
-                format = HAL_PIXEL_FORMAT_YCBCR_420_888;
-                break;
-            } else if (uPlane.rowSampling == 1 && uPlane.colSampling == 2) {
-                format = HAL_PIXEL_FORMAT_YCBCR_422_888;
-                break;
-            } else if (uPlane.rowSampling == 1 && uPlane.colSampling == 1) {
-                format = HAL_PIXEL_FORMAT_YCBCR_444_888;
-                break;
-            }
-            throwExceptionAsNecessary(env, INVALID_OPERATION);
-            return nullptr;
-        }
-        case C2PlanarLayout::TYPE_RGB: {
-            if (layout.numPlanes != 3) {
-                throwExceptionAsNecessary(env, INVALID_OPERATION);
-                return nullptr;
-            }
-            format = HAL_PIXEL_FORMAT_FLEX_RGB_888;
-            break;
-        }
-        case C2PlanarLayout::TYPE_RGBA: {
-            if (layout.numPlanes != 4) {
-                throwExceptionAsNecessary(env, INVALID_OPERATION);
-                return nullptr;
-            }
-            format = HAL_PIXEL_FORMAT_FLEX_RGBA_8888;
-            break;
-        }
-        case C2PlanarLayout::TYPE_YUVA:
-            [[fallthrough]];
-        default:
-            throwExceptionAsNecessary(env, INVALID_OPERATION);
-            return nullptr;
-    }
-
-    ScopedLocalRef<jclass> planeClazz(
-            env, env->FindClass("android/media/MediaCodec$MediaImage$MediaPlane"));
-    ScopedLocalRef<jobjectArray> planeArray{
-            env, env->NewObjectArray(layout.numPlanes, planeClazz.get(), NULL)};
-    CHECK(planeClazz.get() != NULL);
-    jmethodID planeConstructID = env->GetMethodID(planeClazz.get(), "<init>",
-            "([Ljava/nio/ByteBuffer;IIIII)V");
-
-    // plane indices are happened to be Y-U-V and R-G-B(-A) order.
-    for (uint32_t i = 0; i < layout.numPlanes; ++i) {
-        const C2PlaneInfo &plane = layout.planes[i];
-        if (plane.rowInc < 0 || plane.colInc < 0) {
-            throwExceptionAsNecessary(env, INVALID_OPERATION);
-            return nullptr;
-        }
-        ssize_t minOffset = plane.minOffset(view->width(), view->height());
-        ssize_t maxOffset = plane.maxOffset(view->width(), view->height());
-        ScopedLocalRef<jobject> byteBuffer{env, CreateByteBuffer(
-                env,
-                view->data()[plane.rootIx] + plane.offset + minOffset,
-                maxOffset - minOffset + 1,
-                0,
-                maxOffset - minOffset + 1,
-                readOnly,
-                true)};
-
-        ScopedLocalRef<jobject> jPlane{env, env->NewObject(
-                planeClazz.get(), planeConstructID,
-                byteBuffer.get(), plane.rowInc, plane.colInc)};
-    }
-
-    ScopedLocalRef<jclass> imageClazz(
-            env, env->FindClass("android/media/MediaCodec$MediaImage"));
-    CHECK(imageClazz.get() != NULL);
-
-    jmethodID imageConstructID = env->GetMethodID(imageClazz.get(), "<init>",
-            "([Landroid/media/Image$Plane;IIIZJIILandroid/graphics/Rect;)V");
-
-    jobject img = env->NewObject(imageClazz.get(), imageConstructID,
-            planeArray.get(),
-            view->width(),
-            view->height(),
-            format,
-            (jboolean)readOnly /* readOnly */,
-            (jlong)0 /* timestamp */,
-            (jint)0 /* xOffset */, (jint)0 /* yOffset */, nullptr /* cropRect */);
-
-    // if MediaImage creation fails, return null
-    if (env->ExceptionCheck()) {
-        env->ExceptionDescribe();
-        env->ExceptionClear();
-        return nullptr;
-    }
-
-    return img;
-}
-
-static jobject android_media_MediaCodec_GraphicBlock_native_map(
-        JNIEnv *env, jobject thiz) {
-    JMediaCodecGraphicBlock *context =
-        (JMediaCodecGraphicBlock *)env->GetLongField(thiz, gGraphicBlockInfo.contextId);
-    if (context->mBuffer) {
-        std::shared_ptr<C2Buffer> buffer = context->mBuffer;
-        if (!context->mReadonlyMapping) {
-            const C2BufferData data = buffer->data();
-            if (data.type() != C2BufferData::GRAPHIC) {
-                throwExceptionAsNecessary(env, INVALID_OPERATION);
-                return nullptr;
-            }
-            if (data.graphicBlocks().size() != 1u) {
-                throwExceptionAsNecessary(env, INVALID_OPERATION);
-                return nullptr;
-            }
-            C2ConstGraphicBlock block = data.graphicBlocks().front();
-            context->mReadonlyMapping =
-                std::make_shared<const C2GraphicView>(block.map().get());
-        }
-        return CreateImage(env, context->mReadonlyMapping);
-    } else if (context->mBlock) {
-        std::shared_ptr<C2GraphicBlock> block = context->mBlock;
-        if (!context->mReadWriteMapping) {
-            context->mReadWriteMapping =
-                std::make_shared<C2GraphicView>(block->map().get());
-        }
-        return CreateImage(env, context->mReadWriteMapping);
-    } else if (context->mLegacyBuffer) {
-    }
-    throwExceptionAsNecessary(env, INVALID_OPERATION);
-    return nullptr;
-}
-
-static void android_media_MediaCodec_GraphicBlock_native_recycle(
-        JNIEnv *env, jobject thiz) {
-    JMediaCodecGraphicBlock *context =
-        (JMediaCodecGraphicBlock *)env->GetLongField(thiz, gGraphicBlockInfo.contextId);
-    env->CallVoidMethod(thiz, gGraphicBlockInfo.setInternalStateId, 0, false /* isMappable */);
-    delete context;
-}
-
-static void android_media_MediaCodec_GraphicBlock_native_obtain(
-        JNIEnv *env, jobject thiz,
-        jint width, jint height, jint format, jlong usage, jobjectArray codecNames) {
-    std::unique_ptr<JMediaCodecGraphicBlock> context{new JMediaCodecGraphicBlock};
-    std::vector<std::string> names;
-    PopulateNamesVector(env, codecNames, &names);
-    context->mBlock = MediaCodec::FetchGraphicBlock(width, height, format, usage, names);
-    if (!context->mBlock) {
-        jniThrowException(env, "java/io/IOException", nullptr);
-        return;
-    }
-    env->CallVoidMethod(
-            thiz,
-            gGraphicBlockInfo.setInternalStateId,
-            (jlong)context.release(),
-            true /*isMappable */);
-}
-
-static jboolean android_media_MediaCodec_GraphicBlock_checkCompatible(
-        JNIEnv *env, jobjectArray codecNames) {
-    std::vector<std::string> names;
-    PopulateNamesVector(env, codecNames, &names);
-    bool isCompatible = false;
-    status_t err = MediaCodec::CanFetchGraphicBlock(names, &isCompatible);
-    if (err != OK) {
-        throwExceptionAsNecessary(env, err);
-    }
-    return isCompatible;
-}
-
 static const JNINativeMethod gMethods[] = {
     { "native_release", "()V", (void *)android_media_MediaCodec_release },
 
@@ -3184,14 +3051,20 @@ static const JNINativeMethod gMethods[] = {
     { "native_queueSecureInputBuffer", "(IILandroid/media/MediaCodec$CryptoInfo;JI)V",
       (void *)android_media_MediaCodec_queueSecureInputBuffer },
 
+    { "native_mapHardwareBuffer",
+      "(Landroid/hardware/HardwareBuffer;)Landroid/media/Image;",
+      (void *)android_media_MediaCodec_mapHardwareBuffer },
+
+    { "native_closeMediaImage", "(J)V", (void *)android_media_MediaCodec_closeMediaImage },
+
     { "native_queueLinearBlock",
       "(ILandroid/media/MediaCodec$LinearBlock;IILandroid/media/MediaCodec$CryptoInfo;JI"
       "Ljava/util/ArrayList;Ljava/util/ArrayList;)V",
       (void *)android_media_MediaCodec_native_queueLinearBlock },
 
-    { "native_queueGraphicBlock",
-      "(ILandroid/media/MediaCodec$GraphicBlock;JILjava/util/ArrayList;Ljava/util/ArrayList;)V",
-      (void *)android_media_MediaCodec_native_queueGraphicBlock },
+    { "native_queueHardwareBuffer",
+      "(ILandroid/hardware/HardwareBuffer;JILjava/util/ArrayList;Ljava/util/ArrayList;)V",
+      (void *)android_media_MediaCodec_native_queueHardwareBuffer },
 
     { "native_getOutputFrame",
       "(Landroid/media/MediaCodec$OutputFrame;I)V",
@@ -3265,20 +3138,6 @@ static const JNINativeMethod gLinearBlockMethods[] = {
       (void *)android_media_MediaCodec_LinearBlock_checkCompatible },
 };
 
-static const JNINativeMethod gGraphicBlockMethods[] = {
-    { "native_map", "()Landroid/media/Image;",
-      (void *)android_media_MediaCodec_GraphicBlock_native_map },
-
-    { "native_recycle", "()V",
-      (void *)android_media_MediaCodec_GraphicBlock_native_recycle },
-
-    { "native_obtain", "(IIIJ[Ljava/lang/String;)V",
-      (void *)android_media_MediaCodec_GraphicBlock_native_obtain },
-
-    { "native_checkCompatible", "([Ljava/lang/String;)Z",
-      (void *)android_media_MediaCodec_GraphicBlock_checkCompatible },
-};
-
 int register_android_media_MediaCodec(JNIEnv *env) {
     int result = AndroidRuntime::registerNativeMethods(env,
                 "android/media/MediaCodec", gMethods, NELEM(gMethods));
@@ -3289,12 +3148,5 @@ int register_android_media_MediaCodec(JNIEnv *env) {
                 "android/media/MediaCodec$LinearBlock",
                 gLinearBlockMethods,
                 NELEM(gLinearBlockMethods));
-    if (result != JNI_OK) {
-        return result;
-    }
-    result = AndroidRuntime::registerNativeMethods(env,
-                "android/media/MediaCodec$GraphicBlock",
-                gGraphicBlockMethods,
-                NELEM(gGraphicBlockMethods));
     return result;
 }