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      1 /*
      2  * Copyright (C) 2011 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef SOFT_VORBIS_H_
     18 
     19 #define SOFT_VORBIS_H_
     20 
     21 #include "SimpleSoftOMXComponent.h"
     22 
     23 struct vorbis_dsp_state;
     24 struct vorbis_info;
     25 
     26 namespace android {
     27 
     28 struct SoftVorbis : public SimpleSoftOMXComponent {
     29     SoftVorbis(const char *name,
     30             const OMX_CALLBACKTYPE *callbacks,
     31             OMX_PTR appData,
     32             OMX_COMPONENTTYPE **component);
     33 
     34 protected:
     35     virtual ~SoftVorbis();
     36 
     37     virtual OMX_ERRORTYPE internalGetParameter(
     38             OMX_INDEXTYPE index, OMX_PTR params);
     39 
     40     virtual OMX_ERRORTYPE internalSetParameter(
     41             OMX_INDEXTYPE index, const OMX_PTR params);
     42 
     43     virtual void onQueueFilled(OMX_U32 portIndex);
     44     virtual void onPortFlushCompleted(OMX_U32 portIndex);
     45     virtual void onPortEnableCompleted(OMX_U32 portIndex, bool enabled);
     46     virtual void onReset();
     47 
     48 private:
     49     enum {
     50         kNumBuffers = 4,
     51         kMaxNumSamplesPerBuffer = 8192 * 2
     52     };
     53 
     54     size_t mInputBufferCount;
     55 
     56     vorbis_dsp_state *mState;
     57     vorbis_info *mVi;
     58 
     59     int64_t mAnchorTimeUs;
     60     int64_t mNumFramesOutput;
     61     int32_t mNumFramesLeftOnPage;
     62     bool mSawInputEos;
     63     bool mSignalledOutputEos;
     64 
     65     enum {
     66         NONE,
     67         AWAITING_DISABLED,
     68         AWAITING_ENABLED
     69     } mOutputPortSettingsChange;
     70 
     71     void initPorts();
     72     status_t initDecoder();
     73     bool isConfigured() const;
     74 
     75     DISALLOW_EVIL_CONSTRUCTORS(SoftVorbis);
     76 };
     77 
     78 }  // namespace android
     79 
     80 #endif  // SOFT_VORBIS_H_
     81 
     82