1 files changed, 94 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/opus/dec/SoftOpus.h b/media/libstagefright/codecs/opus/dec/SoftOpus.h
new file mode 100644
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+++ b/media/libstagefright/codecs/opus/dec/SoftOpus.h
@@ -0,0 +1,94 @@
+/*
+ * 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.
+ */
+
+/*
+ * The Opus specification is part of IETF RFC 6716:
+ * http://tools.ietf.org/html/rfc6716
+ */
+
+#ifndef SOFT_OPUS_H_
+
+#define SOFT_OPUS_H_
+
+#include "SimpleSoftOMXComponent.h"
+
+struct OpusMSDecoder;
+
+namespace android {
+
+struct OpusHeader {
+  int channels;
+  int skip_samples;
+  int channel_mapping;
+  int num_streams;
+  int num_coupled;
+  int16_t gain_db;
+  uint8_t stream_map[8];
+};
+
+struct SoftOpus : public SimpleSoftOMXComponent {
+    SoftOpus(const char *name,
+             const OMX_CALLBACKTYPE *callbacks,
+             OMX_PTR appData,
+             OMX_COMPONENTTYPE **component);
+
+protected:
+    virtual ~SoftOpus();
+
+    virtual OMX_ERRORTYPE internalGetParameter(
+            OMX_INDEXTYPE index, OMX_PTR params);
+
+    virtual OMX_ERRORTYPE internalSetParameter(
+            OMX_INDEXTYPE index, const OMX_PTR params);
+
+    virtual void onQueueFilled(OMX_U32 portIndex);
+    virtual void onPortFlushCompleted(OMX_U32 portIndex);
+    virtual void onPortEnableCompleted(OMX_U32 portIndex, bool enabled);
+    virtual void onReset();
+
+private:
+    enum {
+        kNumBuffers = 4,
+        kMaxNumSamplesPerBuffer = 960 * 6
+    };
+
+    size_t mInputBufferCount;
+
+    OpusMSDecoder *mDecoder;
+    OpusHeader *mHeader;
+
+    int64_t mCodecDelay;
+    int64_t mSeekPreRoll;
+    int64_t mSamplesToDiscard;
+    int64_t mAnchorTimeUs;
+    int64_t mNumFramesOutput;
+
+    enum {
+        NONE,
+        AWAITING_DISABLED,
+        AWAITING_ENABLED
+    } mOutputPortSettingsChange;
+
+    void initPorts();
+    status_t initDecoder();
+    bool isConfigured() const;
+
+    DISALLOW_EVIL_CONSTRUCTORS(SoftOpus);
+};
+
+}  // namespace android
+
+#endif  // SOFT_OPUS_H_