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      1 /*
      2  * Copyright (C) 2012 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_AVC_ENCODER_H_
     18 #define SOFT_AVC_ENCODER_H_
     19 
     20 #include <media/stagefright/MediaBuffer.h>
     21 #include <media/stagefright/foundation/ABase.h>
     22 #include <utils/Vector.h>
     23 
     24 #include "avcenc_api.h"
     25 #include "SoftVideoEncoderOMXComponent.h"
     26 
     27 namespace android {
     28 
     29 struct MediaBuffer;
     30 
     31 struct SoftAVCEncoder : public MediaBufferObserver,
     32                         public SoftVideoEncoderOMXComponent {
     33     SoftAVCEncoder(
     34             const char *name,
     35             const OMX_CALLBACKTYPE *callbacks,
     36             OMX_PTR appData,
     37             OMX_COMPONENTTYPE **component);
     38 
     39     // Override SimpleSoftOMXComponent methods
     40     virtual OMX_ERRORTYPE internalGetParameter(
     41             OMX_INDEXTYPE index, OMX_PTR params);
     42 
     43     virtual OMX_ERRORTYPE internalSetParameter(
     44             OMX_INDEXTYPE index, const OMX_PTR params);
     45 
     46     virtual void onQueueFilled(OMX_U32 portIndex);
     47 
     48     // Implement MediaBufferObserver
     49     virtual void signalBufferReturned(MediaBuffer *buffer);
     50 
     51 
     52     // Callbacks required by PV's encoder
     53     int32_t allocOutputBuffers(unsigned int sizeInMbs, unsigned int numBuffers);
     54     void    unbindOutputBuffer(int32_t index);
     55     int32_t bindOutputBuffer(int32_t index, uint8_t **yuv);
     56 
     57 protected:
     58     virtual ~SoftAVCEncoder();
     59 
     60 private:
     61     enum {
     62         kNumBuffers = 2,
     63     };
     64 
     65     // OMX input buffer's timestamp and flags
     66     typedef struct {
     67         int64_t mTimeUs;
     68         int32_t mFlags;
     69     } InputBufferInfo;
     70 
     71     int32_t  mIDRFrameRefreshIntervalInSec;
     72     AVCProfile mAVCEncProfile;
     73     AVCLevel   mAVCEncLevel;
     74 
     75     int64_t  mNumInputFrames;
     76     int64_t  mPrevTimestampUs;
     77     bool     mStarted;
     78     bool     mSpsPpsHeaderReceived;
     79     bool     mReadyForNextFrame;
     80     bool     mSawInputEOS;
     81     bool     mSignalledError;
     82     bool     mIsIDRFrame;
     83 
     84     tagAVCHandle          *mHandle;
     85     tagAVCEncParam        *mEncParams;
     86     uint8_t               *mInputFrameData;
     87     uint32_t              *mSliceGroup;
     88     Vector<MediaBuffer *> mOutputBuffers;
     89     Vector<InputBufferInfo> mInputBufferInfoVec;
     90 
     91     OMX_ERRORTYPE initEncParams();
     92     OMX_ERRORTYPE initEncoder();
     93     OMX_ERRORTYPE releaseEncoder();
     94     void releaseOutputBuffers();
     95 
     96     DISALLOW_EVIL_CONSTRUCTORS(SoftAVCEncoder);
     97 };
     98 
     99 }  // namespace android
    100 
    101 #endif  // SOFT_AVC_ENCODER_H_
    102