Move Codec2-related code from hardware/google/av

Test: None
Bug: 112362730
Change-Id: Ie2f8ff431d65c40333f267ab9877d47089adeea4
diff --git a/media/codec2/components/aac/C2SoftAacDec.h b/media/codec2/components/aac/C2SoftAacDec.h
new file mode 100644
index 0000000..965c29e
--- /dev/null
+++ b/media/codec2/components/aac/C2SoftAacDec.h
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2017 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 ANDROID_C2_SOFT_AAC_DEC_H_
+#define ANDROID_C2_SOFT_AAC_DEC_H_
+
+#include <SimpleC2Component.h>
+
+
+#include "aacdecoder_lib.h"
+#include "DrcPresModeWrap.h"
+
+namespace android {
+
+struct C2SoftAacDec : public SimpleC2Component {
+    class IntfImpl;
+
+    C2SoftAacDec(const char *name, c2_node_id_t id, const std::shared_ptr<IntfImpl> &intfImpl);
+    virtual ~C2SoftAacDec();
+
+    // From SimpleC2Component
+    c2_status_t onInit() override;
+    c2_status_t onStop() override;
+    void onReset() override;
+    void onRelease() override;
+    c2_status_t onFlush_sm() override;
+    void process(
+            const std::unique_ptr<C2Work> &work,
+            const std::shared_ptr<C2BlockPool> &pool) override;
+    c2_status_t drain(
+            uint32_t drainMode,
+            const std::shared_ptr<C2BlockPool> &pool) override;
+
+private:
+    enum {
+        kNumDelayBlocksMax      = 8,
+    };
+
+    std::shared_ptr<IntfImpl> mIntf;
+
+    HANDLE_AACDECODER mAACDecoder;
+    CStreamInfo *mStreamInfo;
+    bool mIsFirst;
+    size_t mInputBufferCount;
+    size_t mOutputBufferCount;
+    bool mSignalledError;
+    struct Info {
+        uint64_t frameIndex;
+        size_t bufferSize;
+        uint64_t timestamp;
+        std::vector<int32_t> decodedSizes;
+    };
+    std::list<Info> mBuffersInfo;
+
+    CDrcPresModeWrapper mDrcWrap;
+
+    enum {
+        NONE,
+        AWAITING_DISABLED,
+        AWAITING_ENABLED
+    } mOutputPortSettingsChange;
+
+    void initPorts();
+    status_t initDecoder();
+    bool isConfigured() const;
+    void drainDecoder();
+
+    void drainRingBuffer(
+            const std::unique_ptr<C2Work> &work,
+            const std::shared_ptr<C2BlockPool> &pool,
+            bool eos);
+    c2_status_t drainInternal(
+            uint32_t drainMode,
+            const std::shared_ptr<C2BlockPool> &pool,
+            const std::unique_ptr<C2Work> &work);
+
+//      delay compensation
+    bool mEndOfInput;
+    bool mEndOfOutput;
+    int32_t mOutputDelayCompensated;
+    int32_t mOutputDelayRingBufferSize;
+    short *mOutputDelayRingBuffer;
+    int32_t mOutputDelayRingBufferWritePos;
+    int32_t mOutputDelayRingBufferReadPos;
+    int32_t mOutputDelayRingBufferFilled;
+    bool outputDelayRingBufferPutSamples(INT_PCM *samples, int numSamples);
+    int32_t outputDelayRingBufferGetSamples(INT_PCM *samples, int numSamples);
+    int32_t outputDelayRingBufferSamplesAvailable();
+    int32_t outputDelayRingBufferSpaceLeft();
+
+    C2_DO_NOT_COPY(C2SoftAacDec);
+};
+
+}  // namespace android
+
+#endif  // ANDROID_C2_SOFT_AAC_DEC_H_