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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 SIMPLE_SOFT_OMX_COMPONENT_H_
     18 
     19 #define SIMPLE_SOFT_OMX_COMPONENT_H_
     20 
     21 #include "SoftOMXComponent.h"
     22 
     23 #include <media/stagefright/foundation/AHandlerReflector.h>
     24 #include <utils/RefBase.h>
     25 #include <utils/threads.h>
     26 #include <utils/Vector.h>
     27 
     28 namespace android {
     29 
     30 struct ALooper;
     31 
     32 struct CodecProfileLevel {
     33     OMX_U32 mProfile;
     34     OMX_U32 mLevel;
     35 };
     36 
     37 struct SimpleSoftOMXComponent : public SoftOMXComponent {
     38     SimpleSoftOMXComponent(
     39             const char *name,
     40             const OMX_CALLBACKTYPE *callbacks,
     41             OMX_PTR appData,
     42             OMX_COMPONENTTYPE **component);
     43 
     44     virtual void prepareForDestruction();
     45 
     46     void onMessageReceived(const sp<AMessage> &msg);
     47 
     48 protected:
     49     struct BufferInfo {
     50         OMX_BUFFERHEADERTYPE *mHeader;
     51         bool mOwnedByUs;
     52     };
     53 
     54     struct PortInfo {
     55         OMX_PARAM_PORTDEFINITIONTYPE mDef;
     56         Vector<BufferInfo> mBuffers;
     57         List<BufferInfo *> mQueue;
     58 
     59         enum {
     60             NONE,
     61             DISABLING,
     62             ENABLING,
     63         } mTransition;
     64     };
     65 
     66     enum {
     67         kStoreMetaDataExtensionIndex = OMX_IndexVendorStartUnused + 1,
     68         kPrepareForAdaptivePlaybackIndex,
     69     };
     70 
     71     void addPort(const OMX_PARAM_PORTDEFINITIONTYPE &def);
     72 
     73     virtual OMX_ERRORTYPE internalGetParameter(
     74             OMX_INDEXTYPE index, OMX_PTR params);
     75 
     76     virtual OMX_ERRORTYPE internalSetParameter(
     77             OMX_INDEXTYPE index, const OMX_PTR params);
     78 
     79     virtual void onQueueFilled(OMX_U32 portIndex);
     80     List<BufferInfo *> &getPortQueue(OMX_U32 portIndex);
     81 
     82     virtual void onPortFlushCompleted(OMX_U32 portIndex);
     83     virtual void onPortEnableCompleted(OMX_U32 portIndex, bool enabled);
     84     virtual void onReset();
     85 
     86     PortInfo *editPortInfo(OMX_U32 portIndex);
     87 
     88 private:
     89     enum {
     90         kWhatSendCommand,
     91         kWhatEmptyThisBuffer,
     92         kWhatFillThisBuffer,
     93     };
     94 
     95     Mutex mLock;
     96 
     97     sp<ALooper> mLooper;
     98     sp<AHandlerReflector<SimpleSoftOMXComponent> > mHandler;
     99 
    100     OMX_STATETYPE mState;
    101     OMX_STATETYPE mTargetState;
    102 
    103     Vector<PortInfo> mPorts;
    104 
    105     bool isSetParameterAllowed(
    106             OMX_INDEXTYPE index, const OMX_PTR params) const;
    107 
    108     virtual OMX_ERRORTYPE sendCommand(
    109             OMX_COMMANDTYPE cmd, OMX_U32 param, OMX_PTR data);
    110 
    111     virtual OMX_ERRORTYPE getParameter(
    112             OMX_INDEXTYPE index, OMX_PTR params);
    113 
    114     virtual OMX_ERRORTYPE setParameter(
    115             OMX_INDEXTYPE index, const OMX_PTR params);
    116 
    117     virtual OMX_ERRORTYPE useBuffer(
    118             OMX_BUFFERHEADERTYPE **buffer,
    119             OMX_U32 portIndex,
    120             OMX_PTR appPrivate,
    121             OMX_U32 size,
    122             OMX_U8 *ptr);
    123 
    124     virtual OMX_ERRORTYPE allocateBuffer(
    125             OMX_BUFFERHEADERTYPE **buffer,
    126             OMX_U32 portIndex,
    127             OMX_PTR appPrivate,
    128             OMX_U32 size);
    129 
    130     virtual OMX_ERRORTYPE freeBuffer(
    131             OMX_U32 portIndex,
    132             OMX_BUFFERHEADERTYPE *buffer);
    133 
    134     virtual OMX_ERRORTYPE emptyThisBuffer(
    135             OMX_BUFFERHEADERTYPE *buffer);
    136 
    137     virtual OMX_ERRORTYPE fillThisBuffer(
    138             OMX_BUFFERHEADERTYPE *buffer);
    139 
    140     virtual OMX_ERRORTYPE getState(OMX_STATETYPE *state);
    141 
    142     void onSendCommand(OMX_COMMANDTYPE cmd, OMX_U32 param);
    143     void onChangeState(OMX_STATETYPE state);
    144     void onPortEnable(OMX_U32 portIndex, bool enable);
    145     void onPortFlush(OMX_U32 portIndex, bool sendFlushComplete);
    146 
    147     void checkTransitions();
    148 
    149     DISALLOW_EVIL_CONSTRUCTORS(SimpleSoftOMXComponent);
    150 };
    151 
    152 }  // namespace android
    153 
    154 #endif  // SIMPLE_SOFT_OMX_COMPONENT_H_
    155