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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_MPEG4_H_
     18 
     19 #define SOFT_MPEG4_H_
     20 
     21 #include "SimpleSoftOMXComponent.h"
     22 
     23 struct tagvideoDecControls;
     24 
     25 namespace android {
     26 
     27 struct SoftMPEG4 : public SimpleSoftOMXComponent {
     28     SoftMPEG4(const char *name,
     29             const OMX_CALLBACKTYPE *callbacks,
     30             OMX_PTR appData,
     31             OMX_COMPONENTTYPE **component);
     32 
     33 protected:
     34     virtual ~SoftMPEG4();
     35 
     36     virtual OMX_ERRORTYPE internalGetParameter(
     37             OMX_INDEXTYPE index, OMX_PTR params);
     38 
     39     virtual OMX_ERRORTYPE internalSetParameter(
     40             OMX_INDEXTYPE index, const OMX_PTR params);
     41 
     42     virtual OMX_ERRORTYPE getConfig(OMX_INDEXTYPE index, OMX_PTR params);
     43 
     44     virtual void onQueueFilled(OMX_U32 portIndex);
     45     virtual void onPortFlushCompleted(OMX_U32 portIndex);
     46     virtual void onPortEnableCompleted(OMX_U32 portIndex, bool enabled);
     47 
     48 private:
     49     enum {
     50         kNumInputBuffers  = 4,
     51         kNumOutputBuffers = 2,
     52     };
     53 
     54     enum {
     55         MODE_MPEG4,
     56         MODE_H263,
     57 
     58     } mMode;
     59 
     60     tagvideoDecControls *mHandle;
     61 
     62     size_t mInputBufferCount;
     63 
     64     int32_t mWidth, mHeight;
     65     int32_t mCropLeft, mCropTop, mCropRight, mCropBottom;
     66 
     67     bool mSignalledError;
     68     bool mInitialized;
     69     bool mFramesConfigured;
     70 
     71     int32_t mNumSamplesOutput;
     72 
     73     enum {
     74         NONE,
     75         AWAITING_DISABLED,
     76         AWAITING_ENABLED
     77     } mOutputPortSettingsChange;
     78 
     79     void initPorts();
     80     status_t initDecoder();
     81 
     82     void updatePortDefinitions();
     83     bool portSettingsChanged();
     84 
     85     DISALLOW_EVIL_CONSTRUCTORS(SoftMPEG4);
     86 };
     87 
     88 }  // namespace android
     89 
     90 #endif  // SOFT_MPEG4_H_
     91 
     92 
     93