commit bc2fb720bbd0acd122bacc67e844e982d068f6f9
author Wei Jia <wjia@google.com> Tue Jul 08 16:37:57 2014 -0700
committer Wei Jia <wjia@google.com> Wed Jul 09 16:29:58 2014 -0700
tree 180dc675e82bdfe264f16cff93c719e576a5be06
parent 0dba9b1719a598f5d78cbcef4b0b9e47313f1037

Add support of audio offloading for NuPlayer.

Change-Id: Ic83973339fb46a83b48382e6097925f45d200867

media/libmediaplayerservice/nuplayer/NuPlayerDecoderPassThrough.h

diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDecoderPassThrough.h b/media/libmediaplayerservice/nuplayer/NuPlayerDecoderPassThrough.h
new file mode 100644
index 0000000..e9e5658
--- /dev/null
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDecoderPassThrough.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2014 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.
+ */
+
+#ifndef NUPLAYER_DECODER_PASS_THROUGH_H_
+
+#define NUPLAYER_DECODER_PASS_THROUGH_H_
+
+#include "NuPlayer.h"
+
+#include "NuPlayerDecoder.h"
+
+namespace android {
+
+struct NuPlayer::DecoderPassThrough : public Decoder {
+    DecoderPassThrough(const sp<AMessage> &notify);
+
+    virtual void configure(const sp<AMessage> &format);
+    virtual void init();
+
+    virtual void signalFlush();
+    virtual void signalResume();
+    virtual void initiateShutdown();
+
+    bool supportsSeamlessFormatChange(const sp<AMessage> &to) const;
+
+protected:
+
+    virtual ~DecoderPassThrough();
+
+    virtual void onMessageReceived(const sp<AMessage> &msg);
+
+private:
+    enum {
+        kWhatRequestABuffer     = 'reqB',
+        kWhatConfigure          = 'conf',
+        kWhatInputBufferFilled  = 'inpF',
+        kWhatBufferConsumed     = 'bufC',
+        kWhatFlush              = 'flus',
+        kWhatShutdown           = 'shuD',
+    };
+
+    sp<AMessage> mNotify;
+    sp<ALooper> mDecoderLooper;
+
+    void requestABuffer();
+    bool isStaleReply(const sp<AMessage> &msg);
+
+    void onConfigure(const sp<AMessage> &format);
+    void onFlush();
+    void onInputBufferFilled(const sp<AMessage> &msg);
+    void onBufferConsumed();
+    void onShutdown();
+
+    int32_t mBufferGeneration;
+    bool mReachedEOS;
+    int32_t mPendingBuffers;
+    AString mComponentName;
+
+    DISALLOW_EVIL_CONSTRUCTORS(DecoderPassThrough);
+};
+
+}  // namespace android
+
+#endif  // NUPLAYER_DECODER_PASS_THROUGH_H_