stagefright: abstract GraphicBufferSource to interfaces
Create two interfaces from GraphicBufferSource:
a) IGraphicBufferSource for client (ACodec) to configure the graphic
buffer source. IOMX no longer routes these messages and OMX internal
options are removed.
b) IOMXBufferSource for IOMX to send OMX specific callbacks.
Added an |origTimestamp| argument to emptyGraphicBuffer, and restore
the original PTS inside OMX to avoid going back to GraphicBufferSource
to patch the output PTS. In the longer term, we should consider moving
the max PTS gap entirely into OMX (probably as an extension index).
Define newly introduced interfaces using AIDL to facilitate code
development.
bug: 31399200
Change-Id: Ibaf6ca1a0737ba6ba9f83bedc3b06ef358db36cb
diff --git a/media/libmedia/aidl/android/IOMXBufferSource.aidl b/media/libmedia/aidl/android/IOMXBufferSource.aidl
new file mode 100644
index 0000000..a5bf448
--- /dev/null
+++ b/media/libmedia/aidl/android/IOMXBufferSource.aidl
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android;
+
+import android.OMXFenceParcelable;
+
+/**
+ * Binder interface for a buffer source to be used together with an OMX encoder
+ *
+ * @hide
+ */
+interface IOMXBufferSource {
+ /**
+ * This is called when OMX transitions to OMX_StateExecuting, which means
+ * we can start handing it buffers. If we already have buffers of data
+ * sitting in the BufferQueue, this will send them to the codec.
+ */
+ void onOmxExecuting();
+
+ /**
+ * This is called when OMX transitions to OMX_StateIdle, indicating that
+ * the codec is meant to return all buffers back to the client for them
+ * to be freed. Do NOT submit any more buffers to the component.
+ */
+ void onOmxIdle();
+
+ /**
+ * This is called when OMX transitions to OMX_StateLoaded, indicating that
+ * we are shutting down.
+ */
+ void onOmxLoaded();
+
+ /**
+ * A "codec buffer", i.e. a buffer that can be used to pass data into
+ * the encoder, has been allocated.
+ */
+ void onInputBufferAdded(int bufferID);
+
+ /**
+ * Called from OnEmptyBufferDone. If we have a BQ buffer available,
+ * fill it with a new frame of data; otherwise, just mark it as available.
+ *
+ * fenceParcel contains the fence's fd that the callee should wait on before
+ * using the buffer (or pass on to the user of the buffer, if the user supports
+ * fences). Callee takes ownership of the fence fd even if it fails.
+ */
+ void onInputBufferEmptied(int bufferID, in OMXFenceParcelable fenceParcel);
+}
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