am 2d6d609c: Merge change I74bf38a0 into eclair-mr2

Merge commit '2d6d609c9ede7ed8924001df00af9c13effab8ad' into eclair-mr2-plus-aosp

* commit '2d6d609c9ede7ed8924001df00af9c13effab8ad':
  Squashed commit of the following:

include/media/stagefright/HardwareAPI.h

@@ -18,6 +18,7 @@
 
 #define HARDWARE_API_H_
 
+#include <media/stagefright/OMXPluginBase.h>
 #include <media/stagefright/VideoRenderer.h>
 #include <ui/ISurface.h>
 #include <utils/RefBase.h>
@@ -31,5 +32,7 @@ extern android::VideoRenderer *createRenderer(
         size_t displayWidth, size_t displayHeight,
         size_t decodedWidth, size_t decodedHeight);
 
+extern android::OMXPluginBase *createOMXPlugin();
+
 #endif  // HARDWARE_API_H_
 

include/media/stagefright/OMXPluginBase.h

@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2009 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.
+ */
+
+#ifndef OMX_PLUGIN_BASE_H_
+
+#define OMX_PLUGIN_BASE_H_
+
+#include <sys/types.h>
+
+#include <OMX_Component.h>
+
+namespace android {
+
+struct OMXComponentBase;
+
+struct OMXPluginBase {
+    OMXPluginBase() {}
+    virtual ~OMXPluginBase() {}
+
+    virtual OMX_ERRORTYPE makeComponentInstance(
+            const char *name,
+            const OMX_CALLBACKTYPE *callbacks,
+            OMX_PTR appData,
+            OMX_COMPONENTTYPE **component) = 0;
+
+    virtual OMX_ERRORTYPE enumerateComponents(
+            OMX_STRING name,
+            size_t size,
+            OMX_U32 index) = 0;
+
+private:
+    OMXPluginBase(const OMXPluginBase &);
+    OMXPluginBase &operator=(const OMXPluginBase &);
+};
+
+}  // namespace android
+
+#endif  // OMX_PLUGIN_BASE_H_

media/libstagefright/include/OMX.h

@@ -23,6 +23,7 @@
 
 namespace android {
 
+struct OMXMaster;
 class OMXNodeInstance;
 
 class OMX : public BnOMX,
@@ -108,9 +109,14 @@ public:
 
     void invalidateNodeID(node_id node);
 
+protected:
+    virtual ~OMX();
+
 private:
     Mutex mLock;
 
+    OMXMaster *mMaster;
+
     struct CallbackDispatcher;
     sp<CallbackDispatcher> mDispatcher;
 

media/libstagefright/omx/Android.mk

@@ -11,16 +11,33 @@ LOCAL_C_INCLUDES += $(JNI_H_INCLUDE)
 LOCAL_SRC_FILES:=                     \
         ColorConverter.cpp            \
 	OMX.cpp                       \
+        OMXComponentBase.cpp          \
         OMXNodeInstance.cpp           \
+        OMXMaster.cpp                 \
+        OMXSoftwareCodecsPlugin.cpp   \
         SoftwareRenderer.cpp
 
+ifneq ($(BUILD_WITHOUT_PV),true)
+LOCAL_SRC_FILES += \
+        OMXPVCodecsPlugin.cpp
+else
+LOCAL_CFLAGS += -DNO_OPENCORE
+endif
+
 LOCAL_SHARED_LIBRARIES :=       \
         libbinder               \
         libmedia                \
         libutils                \
         libui                   \
-        libcutils               \
+        libcutils
+
+ifneq ($(BUILD_WITHOUT_PV),true)
+LOCAL_SHARED_LIBRARIES += \
         libopencore_common
+endif
+
+LOCAL_STATIC_LIBRARIES :=       \
+        libstagefright_mp3
 
 ifeq ($(TARGET_OS)-$(TARGET_SIMULATOR),linux-true)
         LOCAL_LDLIBS += -lpthread -ldl
@@ -35,3 +52,5 @@ LOCAL_PRELINK_MODULE:= false
 LOCAL_MODULE:= libstagefright_omx
 
 include $(BUILD_SHARED_LIBRARY)
+
+include $(call all-makefiles-under,$(LOCAL_PATH))

media/libstagefright/omx/OMX.cpp

@@ -18,11 +18,11 @@
 #define LOG_TAG "OMX"
 #include <utils/Log.h>
 
+#include <dlfcn.h>
+
 #include "../include/OMX.h"
 #include "OMXRenderer.h"
 
-#include "pv_omxcore.h"
-
 #include "../include/OMXNodeInstance.h"
 #include "../include/SoftwareRenderer.h"
 
@@ -30,6 +30,8 @@
 #include <media/stagefright/MediaDebug.h>
 #include <media/stagefright/VideoRenderer.h>
 
+#include "OMXMaster.h"
+
 #include <OMX_Component.h>
 
 namespace android {
@@ -178,10 +180,16 @@ private:
 };
 
 OMX::OMX()
-    : mDispatcher(new CallbackDispatcher(this)),
+    : mMaster(new OMXMaster),
+      mDispatcher(new CallbackDispatcher(this)),
       mNodeCounter(0) {
 }
 
+OMX::~OMX() {
+    delete mMaster;
+    mMaster = NULL;
+}
+
 void OMX::binderDied(const wp<IBinder> &the_late_who) {
     OMXNodeInstance *instance;
 
@@ -201,14 +209,12 @@ void OMX::binderDied(const wp<IBinder> &the_late_who) {
 }
 
 status_t OMX::listNodes(List<String8> *list) {
-    OMX_MasterInit();  // XXX Put this somewhere else.
-
     list->clear();
 
     OMX_U32 index = 0;
     char componentName[256];
-    while (OMX_MasterComponentNameEnum(componentName, sizeof(componentName), index)
+    while (mMaster->enumerateComponents(
-               == OMX_ErrorNone) {
+                componentName, sizeof(componentName), index) == OMX_ErrorNone) {
         list->push_back(String8(componentName));
 
         ++index;
@@ -223,14 +229,12 @@ status_t OMX::allocateNode(
 
     *node = 0;
 
-    OMX_MasterInit();  // XXX Put this somewhere else.
-
     OMXNodeInstance *instance = new OMXNodeInstance(this, observer);
 
-    OMX_HANDLETYPE handle;
+    OMX_COMPONENTTYPE *handle;
-    OMX_ERRORTYPE err = OMX_MasterGetHandle(
+    OMX_ERRORTYPE err = mMaster->makeComponentInstance(
-            &handle, const_cast<char *>(name), instance,
+            name, &OMXNodeInstance::kCallbacks,
-            &OMXNodeInstance::kCallbacks);
+            instance, &handle);
 
     if (err != OMX_ErrorNone) {
         LOGV("FAILED to allocate omx component '%s'", name);

media/libstagefright/omx/OMXComponentBase.cpp

@@ -0,0 +1,201 @@
+/*
+ * Copyright (C) 2009 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.
+ */
+
+#include "OMXComponentBase.h"
+
+#include <stdlib.h>
+
+#include <media/stagefright/MediaDebug.h>
+
+namespace android {
+
+OMXComponentBase::OMXComponentBase(
+        const OMX_CALLBACKTYPE *callbacks,
+        OMX_PTR appData)
+    : mCallbacks(callbacks),
+      mAppData(appData),
+      mComponentHandle(NULL) {
+}
+
+OMXComponentBase::~OMXComponentBase() {}
+
+void OMXComponentBase::setComponentHandle(OMX_COMPONENTTYPE *handle) {
+    CHECK_EQ(mComponentHandle, NULL);
+    mComponentHandle = handle;
+}
+
+void OMXComponentBase::postEvent(
+        OMX_EVENTTYPE event, OMX_U32 param1, OMX_U32 param2) {
+    (*mCallbacks->EventHandler)(
+            mComponentHandle, mAppData, event, param1, param2, NULL);
+}
+
+void OMXComponentBase::postFillBufferDone(OMX_BUFFERHEADERTYPE *bufHdr) {
+    (*mCallbacks->FillBufferDone)(mComponentHandle, mAppData, bufHdr);
+}
+
+void OMXComponentBase::postEmptyBufferDone(OMX_BUFFERHEADERTYPE *bufHdr) {
+    (*mCallbacks->EmptyBufferDone)(mComponentHandle, mAppData, bufHdr);
+}
+
+static OMXComponentBase *getBase(OMX_HANDLETYPE hComponent) {
+    return (OMXComponentBase *)
+        ((OMX_COMPONENTTYPE *)hComponent)->pComponentPrivate;
+}
+
+static OMX_ERRORTYPE SendCommandWrapper(
+        OMX_IN  OMX_HANDLETYPE hComponent,
+        OMX_IN  OMX_COMMANDTYPE Cmd,
+        OMX_IN  OMX_U32 nParam1,
+        OMX_IN  OMX_PTR pCmdData) {
+    return getBase(hComponent)->sendCommand(Cmd, nParam1, pCmdData);
+}
+
+static OMX_ERRORTYPE GetParameterWrapper(
+        OMX_IN  OMX_HANDLETYPE hComponent, 
+        OMX_IN  OMX_INDEXTYPE nParamIndex,  
+        OMX_INOUT OMX_PTR pComponentParameterStructure) {
+    return getBase(hComponent)->getParameter(
+            nParamIndex, pComponentParameterStructure);
+}
+
+static OMX_ERRORTYPE SetParameterWrapper(
+        OMX_IN  OMX_HANDLETYPE hComponent, 
+        OMX_IN  OMX_INDEXTYPE nIndex,
+        OMX_IN  OMX_PTR pComponentParameterStructure) {
+    return getBase(hComponent)->getParameter(
+            nIndex, pComponentParameterStructure);
+}
+
+static OMX_ERRORTYPE GetConfigWrapper(
+        OMX_IN  OMX_HANDLETYPE hComponent,
+        OMX_IN  OMX_INDEXTYPE nIndex, 
+        OMX_INOUT OMX_PTR pComponentConfigStructure) {
+    return getBase(hComponent)->getConfig(nIndex, pComponentConfigStructure);
+}
+
+static OMX_ERRORTYPE SetConfigWrapper(
+        OMX_IN  OMX_HANDLETYPE hComponent,
+        OMX_IN  OMX_INDEXTYPE nIndex, 
+        OMX_IN  OMX_PTR pComponentConfigStructure) {
+    return getBase(hComponent)->setConfig(nIndex, pComponentConfigStructure);
+}
+
+static OMX_ERRORTYPE GetExtensionIndexWrapper(
+        OMX_IN  OMX_HANDLETYPE hComponent,
+        OMX_IN  OMX_STRING cParameterName,
+        OMX_OUT OMX_INDEXTYPE* pIndexType) {
+    return getBase(hComponent)->getExtensionIndex(cParameterName, pIndexType);
+}
+
+static OMX_ERRORTYPE GetStateWrapper(
+        OMX_IN  OMX_HANDLETYPE hComponent,
+        OMX_OUT OMX_STATETYPE* pState) {
+    return getBase(hComponent)->getState(pState);
+}
+
+static OMX_ERRORTYPE UseBufferWrapper(
+        OMX_IN OMX_HANDLETYPE hComponent,
+        OMX_INOUT OMX_BUFFERHEADERTYPE** ppBufferHdr,
+        OMX_IN OMX_U32 nPortIndex,
+        OMX_IN OMX_PTR pAppPrivate,
+        OMX_IN OMX_U32 nSizeBytes,
+        OMX_IN OMX_U8* pBuffer) {
+    return getBase(hComponent)->useBuffer(
+            ppBufferHdr, nPortIndex, pAppPrivate, nSizeBytes, pBuffer);
+}
+
+static OMX_ERRORTYPE AllocateBufferWrapper(
+        OMX_IN OMX_HANDLETYPE hComponent,
+        OMX_INOUT OMX_BUFFERHEADERTYPE** ppBuffer,
+        OMX_IN OMX_U32 nPortIndex,
+        OMX_IN OMX_PTR pAppPrivate,
+        OMX_IN OMX_U32 nSizeBytes) {
+    return getBase(hComponent)->allocateBuffer(
+            ppBuffer, nPortIndex, pAppPrivate, nSizeBytes);
+}
+
+static OMX_ERRORTYPE FreeBufferWrapper(
+        OMX_IN  OMX_HANDLETYPE hComponent,
+        OMX_IN  OMX_U32 nPortIndex,
+        OMX_IN  OMX_BUFFERHEADERTYPE* pBuffer) {
+    return getBase(hComponent)->freeBuffer(nPortIndex, pBuffer);
+}
+
+static OMX_ERRORTYPE EmptyThisBufferWrapper(
+        OMX_IN  OMX_HANDLETYPE hComponent,
+        OMX_IN  OMX_BUFFERHEADERTYPE* pBuffer) {
+    return getBase(hComponent)->emptyThisBuffer(pBuffer);
+}
+
+static OMX_ERRORTYPE FillThisBufferWrapper(
+        OMX_IN  OMX_HANDLETYPE hComponent,
+        OMX_IN  OMX_BUFFERHEADERTYPE* pBuffer) {
+    return getBase(hComponent)->fillThisBuffer(pBuffer);
+}
+
+static OMX_ERRORTYPE ComponentDeInitWrapper(
+        OMX_IN  OMX_HANDLETYPE hComponent) {
+    delete getBase(hComponent);
+    delete (OMX_COMPONENTTYPE *)hComponent;
+
+    return OMX_ErrorNone;
+}
+
+static OMX_ERRORTYPE ComponentRoleEnumWrapper(
+        OMX_IN OMX_HANDLETYPE hComponent,
+        OMX_OUT OMX_U8 *cRole,
+        OMX_IN OMX_U32 nIndex) {
+    return getBase(hComponent)->enumerateRoles(cRole, nIndex);
+}
+
+// static
+OMX_COMPONENTTYPE *OMXComponentBase::MakeComponent(OMXComponentBase *base) {
+    OMX_COMPONENTTYPE *result = new OMX_COMPONENTTYPE;
+
+    result->nSize = sizeof(OMX_COMPONENTTYPE);
+    result->nVersion.s.nVersionMajor = 1;
+    result->nVersion.s.nVersionMinor = 0;
+    result->nVersion.s.nRevision = 0;
+    result->nVersion.s.nStep = 0;
+    result->pComponentPrivate = base;
+    result->pApplicationPrivate = NULL;
+
+    result->GetComponentVersion = NULL;
+    result->SendCommand = SendCommandWrapper;
+    result->GetParameter = GetParameterWrapper;
+    result->SetParameter = SetParameterWrapper;
+    result->GetConfig = GetConfigWrapper;
+    result->SetConfig = SetConfigWrapper;
+    result->GetExtensionIndex = GetExtensionIndexWrapper;
+    result->GetState = GetStateWrapper;
+    result->ComponentTunnelRequest = NULL;
+    result->UseBuffer = UseBufferWrapper;
+    result->AllocateBuffer = AllocateBufferWrapper;
+    result->FreeBuffer = FreeBufferWrapper;
+    result->EmptyThisBuffer = EmptyThisBufferWrapper;
+    result->FillThisBuffer = FillThisBufferWrapper;
+    result->SetCallbacks = NULL;
+    result->ComponentDeInit = ComponentDeInitWrapper;
+    result->UseEGLImage = NULL;
+    result->ComponentRoleEnum = ComponentRoleEnumWrapper;
+
+    base->setComponentHandle(result);
+
+    return result;
+}
+
+}  // namespace android

media/libstagefright/omx/OMXComponentBase.h

@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2009 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.
+ */
+
+#ifndef OMX_COMPONENT_BASE_H_
+
+#define OMX_COMPONENT_BASE_H_
+
+#include <OMX_Component.h>
+
+namespace android {
+
+struct OMXComponentBase {
+    OMXComponentBase(
+            const OMX_CALLBACKTYPE *callbacks,
+            OMX_PTR appData);
+
+    virtual ~OMXComponentBase();
+
+    virtual OMX_ERRORTYPE sendCommand(
+            OMX_COMMANDTYPE cmd, OMX_U32 param, OMX_PTR cmdData) = 0;
+
+    virtual OMX_ERRORTYPE getParameter(
+            OMX_INDEXTYPE index, OMX_PTR params) = 0;
+
+    virtual OMX_ERRORTYPE setParameter(
+            OMX_INDEXTYPE index, const OMX_PTR params) = 0;
+
+    virtual OMX_ERRORTYPE getConfig(
+            OMX_INDEXTYPE index, OMX_PTR config) = 0;
+
+    virtual OMX_ERRORTYPE setConfig(
+            OMX_INDEXTYPE index, const OMX_PTR config) = 0;
+
+    virtual OMX_ERRORTYPE getExtensionIndex(
+            const OMX_STRING name, OMX_INDEXTYPE *index) = 0;
+
+    virtual OMX_ERRORTYPE useBuffer(
+            OMX_BUFFERHEADERTYPE **bufHdr,
+            OMX_U32 portIndex,
+            OMX_PTR appPrivate,
+            OMX_U32 size,
+            OMX_U8 *buffer) = 0;
+
+    virtual OMX_ERRORTYPE allocateBuffer(
+            OMX_BUFFERHEADERTYPE **bufHdr,
+            OMX_U32 portIndex,
+            OMX_PTR appPrivate,
+            OMX_U32 size) = 0;
+
+    virtual OMX_ERRORTYPE freeBuffer(
+            OMX_U32 portIndex,
+            OMX_BUFFERHEADERTYPE *buffer) = 0;
+
+    virtual OMX_ERRORTYPE emptyThisBuffer(OMX_BUFFERHEADERTYPE *buffer) = 0;
+    virtual OMX_ERRORTYPE fillThisBuffer(OMX_BUFFERHEADERTYPE *buffer) = 0;
+
+    virtual OMX_ERRORTYPE enumerateRoles(OMX_U8 *role, OMX_U32 index) = 0;
+
+    virtual OMX_ERRORTYPE getState(OMX_STATETYPE *state) = 0;
+
+    // Wraps a given OMXComponentBase instance into an OMX_COMPONENTTYPE
+    // as required by OpenMAX APIs.
+    static OMX_COMPONENTTYPE *MakeComponent(OMXComponentBase *base);
+
+protected:
+    void postEvent(OMX_EVENTTYPE event, OMX_U32 param1, OMX_U32 param2);
+    void postFillBufferDone(OMX_BUFFERHEADERTYPE *bufHdr);
+    void postEmptyBufferDone(OMX_BUFFERHEADERTYPE *bufHdr);
+
+private:
+    void setComponentHandle(OMX_COMPONENTTYPE *handle);
+
+    const OMX_CALLBACKTYPE *mCallbacks;
+    OMX_PTR mAppData;
+    OMX_COMPONENTTYPE *mComponentHandle;
+
+    OMXComponentBase(const OMXComponentBase &);
+    OMXComponentBase &operator=(const OMXComponentBase &);
+};
+
+}  // namespace android
+
+#endif  // OMX_COMPONENT_BASE_H_

media/libstagefright/omx/OMXMaster.cpp

@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2009 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.
+ */
+
+#include "OMXMaster.h"
+
+#include <dlfcn.h>
+
+#include <media/stagefright/MediaDebug.h>
+
+#ifndef NO_OPENCORE
+#include "OMXPVCodecsPlugin.h"
+#endif
+
+#include "OMXSoftwareCodecsPlugin.h"
+
+namespace android {
+
+OMXMaster::OMXMaster()
+    : mVendorLibHandle(NULL) {
+    addPlugin(new OMXSoftwareCodecsPlugin);
+
+    addVendorPlugin();
+
+#ifndef NO_OPENCORE
+    addPlugin(new OMXPVCodecsPlugin);
+#endif
+}
+
+OMXMaster::~OMXMaster() {
+    clearPlugins();
+
+    if (mVendorLibHandle != NULL) {
+        dlclose(mVendorLibHandle);
+        mVendorLibHandle = NULL;
+    }
+}
+
+void OMXMaster::addVendorPlugin() {
+    mVendorLibHandle = dlopen("libstagefrighthw.so", RTLD_NOW);
+
+    if (mVendorLibHandle == NULL) {
+        return;
+    }
+
+    typedef OMXPluginBase *(*CreateOMXPluginFunc)();
+    CreateOMXPluginFunc createOMXPlugin =
+        (CreateOMXPluginFunc)dlsym(
+                mVendorLibHandle, "_ZN7android15createOMXPluginEv");
+
+    addPlugin((*createOMXPlugin)());
+}
+
+void OMXMaster::addPlugin(OMXPluginBase *plugin) {
+    Mutex::Autolock autoLock(mLock);
+
+    mPlugins.push_back(plugin);
+
+    OMX_U32 index = 0;
+
+    char name[128];
+    OMX_ERRORTYPE err;
+    while ((err = plugin->enumerateComponents(
+                    name, sizeof(name), index++)) == OMX_ErrorNone) {
+        String8 name8(name);
+
+        if (mPluginByComponentName.indexOfKey(name8) >= 0) {
+            LOGE("A component of name '%s' already exists, ignoring this one.",
+                 name8.string());
+
+            continue;
+        }
+
+        mPluginByComponentName.add(name8, plugin);
+    }
+    CHECK_EQ(err, OMX_ErrorNoMore);
+}
+
+void OMXMaster::clearPlugins() {
+    Mutex::Autolock autoLock(mLock);
+
+    mPluginByComponentName.clear();
+
+    for (List<OMXPluginBase *>::iterator it = mPlugins.begin();
+         it != mPlugins.end(); ++it) {
+        delete *it;
+        *it = NULL;
+    }
+
+    mPlugins.clear();
+}
+
+OMX_ERRORTYPE OMXMaster::makeComponentInstance(
+        const char *name,
+        const OMX_CALLBACKTYPE *callbacks,
+        OMX_PTR appData,
+        OMX_COMPONENTTYPE **component) {
+    Mutex::Autolock autoLock(mLock);
+
+    *component = NULL;
+
+    ssize_t index = mPluginByComponentName.indexOfKey(String8(name));
+
+    if (index < 0) {
+        return OMX_ErrorInvalidComponentName;
+    }
+
+    OMXPluginBase *plugin = mPluginByComponentName.valueAt(index);
+    return plugin->makeComponentInstance(name, callbacks, appData, component);
+}
+
+OMX_ERRORTYPE OMXMaster::enumerateComponents(
+        OMX_STRING name,
+        size_t size,
+        OMX_U32 index) {
+    Mutex::Autolock autoLock(mLock);
+
+    size_t numComponents = mPluginByComponentName.size();
+
+    if (index >= numComponents) {
+        return OMX_ErrorNoMore;
+    }
+
+    const String8 &name8 = mPluginByComponentName.keyAt(index);
+
+    CHECK(size >= 1 + name8.size());
+    strcpy(name, name8.string());
+
+    return OMX_ErrorNone;
+}
+
+}  // namespace android

media/libstagefright/omx/OMXMaster.h

@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2009 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.
+ */
+
+#ifndef OMX_MASTER_H_
+
+#define OMX_MASTER_H_
+
+#include <media/stagefright/OMXPluginBase.h>
+
+#include <utils/threads.h>
+#include <utils/KeyedVector.h>
+#include <utils/List.h>
+#include <utils/String8.h>
+
+namespace android {
+
+struct OMXMaster : public OMXPluginBase {
+    OMXMaster();
+    virtual ~OMXMaster();
+
+    virtual OMX_ERRORTYPE makeComponentInstance(
+            const char *name,
+            const OMX_CALLBACKTYPE *callbacks,
+            OMX_PTR appData,
+            OMX_COMPONENTTYPE **component);
+
+    virtual OMX_ERRORTYPE enumerateComponents(
+            OMX_STRING name,
+            size_t size,
+            OMX_U32 index);
+
+private:
+    Mutex mLock;
+    List<OMXPluginBase *> mPlugins;
+    KeyedVector<String8, OMXPluginBase *> mPluginByComponentName;
+    void *mVendorLibHandle;
+
+    void addVendorPlugin();
+    void addPlugin(OMXPluginBase *plugin);
+    void clearPlugins();
+
+    OMXMaster(const OMXMaster &);
+    OMXMaster &operator=(const OMXMaster &);
+};
+
+}  // namespace android
+
+#endif  // OMX_MASTER_H_

media/libstagefright/omx/OMXNodeInstance.cpp

@@ -20,7 +20,7 @@
 
 #include "../include/OMXNodeInstance.h"
 
-#include "pv_omxcore.h"
+#include <OMX_Component.h>
 
 #include <binder/IMemory.h>
 #include <media/stagefright/MediaDebug.h>
@@ -157,7 +157,8 @@ status_t OMXNodeInstance::freeNode() {
             break;
     }
 
-    OMX_ERRORTYPE err = OMX_MasterFreeHandle(mHandle);
+    OMX_ERRORTYPE err =
+        (*static_cast<OMX_COMPONENTTYPE *>(mHandle)->ComponentDeInit)(mHandle);
     mHandle = NULL;
 
     if (err != OMX_ErrorNone) {

media/libstagefright/omx/OMXPVCodecsPlugin.cpp

@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2009 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.
+ */
+
+#include "OMXPVCodecsPlugin.h"
+
+#include "pv_omxcore.h"
+
+#include <media/stagefright/MediaDebug.h>
+
+namespace android {
+
+OMXPVCodecsPlugin::OMXPVCodecsPlugin() {
+    OMX_MasterInit();
+}
+
+OMXPVCodecsPlugin::~OMXPVCodecsPlugin() {
+    OMX_MasterDeinit();
+}
+
+OMX_ERRORTYPE OMXPVCodecsPlugin::makeComponentInstance(
+        const char *name,
+        const OMX_CALLBACKTYPE *callbacks,
+        OMX_PTR appData,
+        OMX_COMPONENTTYPE **component) {
+    OMX_ERRORTYPE err = OMX_MasterGetHandle(
+            reinterpret_cast<OMX_HANDLETYPE *>(component),
+            const_cast<char *>(name),
+            appData,
+            const_cast<OMX_CALLBACKTYPE *>(callbacks));
+
+    if (err != OMX_ErrorNone) {
+        return err;
+    }
+
+    // PV is not even filling this in...
+    (*component)->ComponentDeInit = &OMX_MasterFreeHandle;
+
+    return OMX_ErrorNone;
+}
+
+OMX_ERRORTYPE OMXPVCodecsPlugin::enumerateComponents(
+        OMX_STRING name,
+        size_t size,
+        OMX_U32 index) {
+    return OMX_MasterComponentNameEnum(name, size, index);
+}
+
+}  // namespace android

media/libstagefright/omx/OMXPVCodecsPlugin.h

@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2009 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.
+ */
+
+#ifndef OMX_PV_CODECS_PLUGIN_H_
+
+#define OMX_PV_CODECS_PLUGIN_H_
+
+#include <media/stagefright/OMXPluginBase.h>
+
+namespace android {
+
+struct OMXPVCodecsPlugin : public OMXPluginBase {
+    OMXPVCodecsPlugin();
+    virtual ~OMXPVCodecsPlugin();
+
+    virtual OMX_ERRORTYPE makeComponentInstance(
+            const char *name,
+            const OMX_CALLBACKTYPE *callbacks,
+            OMX_PTR appData,
+            OMX_COMPONENTTYPE **component);
+
+    virtual OMX_ERRORTYPE enumerateComponents(
+            OMX_STRING name,
+            size_t size,
+            OMX_U32 index);
+
+private:
+    OMXPVCodecsPlugin(const OMXPVCodecsPlugin &);
+    OMXPVCodecsPlugin &operator=(const OMXPVCodecsPlugin &);
+};
+
+}  // namespace android
+
+#endif  // OMX_PV_CODECS_PLUGIN_H_

media/libstagefright/omx/OMXSoftwareCodecsPlugin.cpp

@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2009 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.
+ */
+
+#include "OMXSoftwareCodecsPlugin.h"
+
+#include "mp3dec/MP3Decoder.h"
+
+namespace android {
+
+typedef OMX_ERRORTYPE (*ComponentFactory)(
+        const OMX_CALLBACKTYPE *callbacks, OMX_PTR appData,
+        OMX_COMPONENTTYPE **component);
+
+static OMX_ERRORTYPE MakeMP3Decoder(
+        const OMX_CALLBACKTYPE *callbacks, OMX_PTR appData,
+        OMX_COMPONENTTYPE **component) {
+    *component = OMXComponentBase::MakeComponent(
+            new MP3Decoder(callbacks, appData));
+
+    return OMX_ErrorNone;
+}
+
+static const struct ComponentInfo {
+    const char *mName;
+    ComponentFactory mFactory;
+} kComponentInfos[] = {
+    { "OMX.google.mp3dec", MakeMP3Decoder }
+};
+
+OMXSoftwareCodecsPlugin::OMXSoftwareCodecsPlugin() {
+}
+
+OMX_ERRORTYPE OMXSoftwareCodecsPlugin::makeComponentInstance(
+        const char *name,
+        const OMX_CALLBACKTYPE *callbacks,
+        OMX_PTR appData,
+        OMX_COMPONENTTYPE **component) {
+    *component = NULL;
+
+    const size_t kNumComponentInfos =
+        sizeof(kComponentInfos) / sizeof(kComponentInfos[0]);
+
+    for (size_t i = 0; i < kNumComponentInfos; ++i) {
+        if (!strcmp(kComponentInfos[i].mName, name)) {
+            return (*kComponentInfos[i].mFactory)(
+                    callbacks, appData, component);
+        }
+    }
+
+    return OMX_ErrorInvalidComponentName;
+}
+
+OMX_ERRORTYPE OMXSoftwareCodecsPlugin::enumerateComponents(
+        OMX_STRING name,
+        size_t size,
+        OMX_U32 index) {
+    const size_t kNumComponentInfos =
+        sizeof(kComponentInfos) / sizeof(kComponentInfos[0]);
+
+    if (index >= kNumComponentInfos) {
+        return OMX_ErrorNoMore;
+    }
+
+    strlcpy(name, kComponentInfos[index].mName, size);
+
+    return OMX_ErrorNone;
+}
+
+}  // namespace android

media/libstagefright/omx/OMXSoftwareCodecsPlugin.h

@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2009 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.
+ */
+
+#ifndef OMX_SOFTWARE_CODECS_PLUGIN_H_
+
+#define OMX_SOFTWARE_CODECS_PLUGIN_H_
+
+#include <media/stagefright/OMXPluginBase.h>
+
+namespace android {
+
+struct OMXSoftwareCodecsPlugin : public OMXPluginBase {
+    OMXSoftwareCodecsPlugin();
+
+    virtual OMX_ERRORTYPE makeComponentInstance(
+            const char *name,
+            const OMX_CALLBACKTYPE *callbacks,
+            OMX_PTR appData,
+            OMX_COMPONENTTYPE **component);
+
+    virtual OMX_ERRORTYPE enumerateComponents(
+            OMX_STRING name,
+            size_t size,
+            OMX_U32 index);
+
+private:
+    OMXSoftwareCodecsPlugin(const OMXSoftwareCodecsPlugin &);
+    OMXSoftwareCodecsPlugin &operator=(const OMXSoftwareCodecsPlugin &);
+};
+
+}  // namespace android
+
+#endif  // OMX_SOFTWARE_CODECS_PLUGIN_H_
+

media/libstagefright/omx/mp3dec/Android.mk

@@ -0,0 +1,16 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+    MP3Decoder.cpp
+
+LOCAL_C_INCLUDES:= \
+        $(TOP)/external/opencore/extern_libs_v2/khronos/openmax/include
+
+LOCAL_SHARED_LIBRARIES:= \
+        libstagefright_omx   \
+        libutils
+
+LOCAL_MODULE:= libstagefright_mp3
+
+include $(BUILD_STATIC_LIBRARY)

media/libstagefright/omx/mp3dec/MP3Decoder.cpp

@@ -0,0 +1,264 @@
+/*
+ * Copyright (C) 2009 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.
+ */
+
+#include "MP3Decoder.h"
+
+#include <media/stagefright/MediaDebug.h>
+
+namespace android {
+
+MP3Decoder::MP3Decoder(
+        const OMX_CALLBACKTYPE *callbacks, OMX_PTR appData)
+    : OMXComponentBase(callbacks, appData),
+      mState(OMX_StateLoaded),
+      mTargetState(OMX_StateLoaded) {
+    initPort(kPortIndexInput);
+    initPort(kPortIndexOutput);
+}
+
+void MP3Decoder::initPort(OMX_U32 portIndex) {
+    mPorts[portIndex].mFlags = 0;
+
+    OMX_PARAM_PORTDEFINITIONTYPE *def = &mPorts[portIndex].mDefinition;
+
+    def->nSize = sizeof(*def);
+    def->nVersion.s.nVersionMajor = 1;
+    def->nVersion.s.nVersionMinor = 0;
+    def->nVersion.s.nRevision = 0;
+    def->nVersion.s.nStep = 0;
+    def->nPortIndex = portIndex;
+    def->eDir = (portIndex == kPortIndexInput) ? OMX_DirInput : OMX_DirOutput;
+    def->nBufferCountActual = 1;
+    def->nBufferCountMin = 1;
+    def->bEnabled = OMX_TRUE;
+    def->bPopulated = OMX_FALSE;
+    def->eDomain = OMX_PortDomainAudio;
+
+    OMX_AUDIO_PORTDEFINITIONTYPE *audioDef = &def->format.audio;
+
+    if (portIndex == kPortIndexInput) {
+        def->nBufferSize = 8192;
+        strlcpy(audioDef->cMIMEType, "audio/mpeg", 128);
+        audioDef->pNativeRender = NULL;
+        audioDef->bFlagErrorConcealment = OMX_FALSE;
+        audioDef->eEncoding = OMX_AUDIO_CodingMP3;
+    } else {
+        CHECK_EQ(portIndex, kPortIndexOutput);
+
+        def->nBufferSize = 8192;
+        strlcpy(audioDef->cMIMEType, "audio/raw", 128);
+        audioDef->pNativeRender = NULL;
+        audioDef->bFlagErrorConcealment = OMX_FALSE;
+        audioDef->eEncoding = OMX_AUDIO_CodingPCM;
+    }
+
+    def->bBuffersContiguous = OMX_TRUE;  // XXX What's this?
+    def->nBufferAlignment = 1;
+}
+
+MP3Decoder::~MP3Decoder() {
+}
+
+OMX_ERRORTYPE MP3Decoder::sendCommand(
+        OMX_COMMANDTYPE cmd, OMX_U32 param, OMX_PTR cmdData) {
+    return OMX_ErrorUndefined;
+}
+
+OMX_ERRORTYPE MP3Decoder::getParameter(
+        OMX_INDEXTYPE index, OMX_PTR params) {
+    switch (index) {
+        case OMX_IndexParamPortDefinition:
+        {
+            OMX_PARAM_PORTDEFINITIONTYPE *def =
+                (OMX_PARAM_PORTDEFINITIONTYPE *)params;
+
+            if (def->nSize < sizeof(OMX_PARAM_PORTDEFINITIONTYPE)) {
+                return OMX_ErrorBadParameter;
+            }
+
+            if (def->nPortIndex != kPortIndexInput
+                && def->nPortIndex != kPortIndexOutput) {
+                return OMX_ErrorBadPortIndex;
+            }
+
+            if (mPorts[def->nPortIndex].mDefinition.bEnabled
+                    && mState != OMX_StateLoaded) {
+                return OMX_ErrorIncorrectStateOperation;
+            }
+
+            memcpy(def, &mPorts[def->nPortIndex].mDefinition,
+                   sizeof(OMX_PARAM_PORTDEFINITIONTYPE));
+
+            return OMX_ErrorNone;
+        }
+
+        default:
+            return OMX_ErrorUnsupportedIndex;
+    }
+}
+
+OMX_ERRORTYPE MP3Decoder::setParameter(
+        OMX_INDEXTYPE index, const OMX_PTR params) {
+    return OMX_ErrorUndefined;
+}
+
+OMX_ERRORTYPE MP3Decoder::getConfig(
+        OMX_INDEXTYPE index, OMX_PTR config) {
+    return OMX_ErrorUndefined;
+}
+
+OMX_ERRORTYPE MP3Decoder::setConfig(
+        OMX_INDEXTYPE index, const OMX_PTR config) {
+    return OMX_ErrorUndefined;
+}
+
+OMX_ERRORTYPE MP3Decoder::getExtensionIndex(
+        const OMX_STRING name, OMX_INDEXTYPE *index) {
+    return OMX_ErrorUndefined;
+}
+
+bool MP3Decoder::portIsDisabledOrPopulated(OMX_U32 portIndex) const {
+    return !mPorts[portIndex].mDefinition.bEnabled
+        || mPorts[portIndex].mDefinition.bPopulated;
+}
+
+OMX_ERRORTYPE MP3Decoder::useOrAllocateBuffer(
+        OMX_BUFFERHEADERTYPE **out,
+        OMX_U32 portIndex,
+        OMX_PTR appPrivate,
+        OMX_U32 size,
+        OMX_U8 *buffer) {
+    if (portIndex != kPortIndexInput && portIndex != kPortIndexOutput) {
+        return OMX_ErrorBadPortIndex;
+    }
+
+    if (!mPorts[portIndex].mDefinition.bEnabled) {
+        if (!(mPorts[portIndex].mFlags & kPortFlagEnabling)) {
+            return OMX_ErrorIncorrectStateOperation;
+        }
+    } else if (mState != OMX_StateLoaded || mTargetState != OMX_StateIdle)  {
+        return OMX_ErrorIncorrectStateOperation;
+    }
+
+    if (size < mPorts[portIndex].mDefinition.nBufferSize) {
+        return OMX_ErrorBadParameter;
+    }
+
+    if (out == NULL) {
+        return OMX_ErrorBadParameter;
+    }
+
+    if (buffer == NULL) {
+        // We need to allocate memory.
+        buffer = new OMX_U8[size];
+
+        // XXX Keep track of buffers we allocated and free them later.
+    }
+
+    OMX_BUFFERHEADERTYPE *bufHdr = new OMX_BUFFERHEADERTYPE;
+    bufHdr->nSize = sizeof(*bufHdr);
+    bufHdr->nVersion.s.nVersionMajor = 1;
+    bufHdr->nVersion.s.nVersionMinor = 0;
+    bufHdr->nVersion.s.nRevision = 0;
+    bufHdr->nVersion.s.nStep = 0;
+    bufHdr->pBuffer = buffer;
+    bufHdr->nAllocLen = size;
+    bufHdr->nFilledLen = 0;
+    bufHdr->nOffset = 0;
+    bufHdr->pAppPrivate = appPrivate;
+    bufHdr->pPlatformPrivate = NULL;
+    bufHdr->pInputPortPrivate = NULL;
+    bufHdr->pOutputPortPrivate = NULL;
+    bufHdr->hMarkTargetComponent = NULL;
+    bufHdr->pMarkData = NULL;
+    bufHdr->nTickCount = 0;
+    bufHdr->nTimeStamp = 0;
+    bufHdr->nFlags = 0;
+    bufHdr->nOutputPortIndex = 0;
+    bufHdr->nInputPortIndex = 0;
+
+    mPorts[portIndex].mBuffers.push(bufHdr);
+
+    if (mPorts[portIndex].mBuffers.size()
+            == mPorts[portIndex].mDefinition.nBufferCountActual) {
+        if (mPorts[portIndex].mDefinition.bEnabled) {
+            mPorts[portIndex].mDefinition.bPopulated = OMX_TRUE;
+        } else if (mPorts[portIndex].mFlags & kPortFlagEnabling) {
+            mPorts[portIndex].mFlags &= ~kPortFlagEnabling;
+            mPorts[portIndex].mDefinition.bEnabled = OMX_TRUE;
+            mPorts[portIndex].mDefinition.bPopulated = OMX_TRUE;
+            postEvent(OMX_EventCmdComplete, OMX_CommandPortEnable, portIndex);
+        }
+    }
+
+    if (mState == OMX_StateLoaded
+        && portIsDisabledOrPopulated(kPortIndexInput)
+        && portIsDisabledOrPopulated(kPortIndexOutput)) {
+        mState = OMX_StateIdle;
+        postEvent(OMX_EventCmdComplete, OMX_CommandStateSet, mState);
+    }
+
+    *out = bufHdr;
+
+    return OMX_ErrorNone;
+}
+
+OMX_ERRORTYPE MP3Decoder::useBuffer(
+        OMX_BUFFERHEADERTYPE **out,
+        OMX_U32 portIndex,
+        OMX_PTR appPrivate,
+        OMX_U32 size,
+        OMX_U8 *buffer) {
+    if (buffer == NULL) {
+        return OMX_ErrorBadParameter;
+    }
+
+    return useOrAllocateBuffer(out, portIndex, appPrivate, size, buffer);
+}
+
+OMX_ERRORTYPE MP3Decoder::allocateBuffer(
+        OMX_BUFFERHEADERTYPE **out,
+        OMX_U32 portIndex,
+        OMX_PTR appPrivate,
+        OMX_U32 size) {
+    return useOrAllocateBuffer(out, portIndex, appPrivate, size, NULL);
+}
+
+OMX_ERRORTYPE MP3Decoder::freeBuffer(
+        OMX_U32 portIndex,
+        OMX_BUFFERHEADERTYPE *buffer) {
+    return OMX_ErrorUndefined;
+}
+
+OMX_ERRORTYPE MP3Decoder::emptyThisBuffer(OMX_BUFFERHEADERTYPE *buffer) {
+    return OMX_ErrorUndefined;
+}
+
+OMX_ERRORTYPE MP3Decoder::fillThisBuffer(OMX_BUFFERHEADERTYPE *buffer) {
+    return OMX_ErrorUndefined;
+}
+
+OMX_ERRORTYPE MP3Decoder::enumerateRoles(OMX_U8 *role, OMX_U32 index) {
+    return OMX_ErrorNoMore;
+}
+
+OMX_ERRORTYPE MP3Decoder::getState(OMX_STATETYPE *state) {
+    *state = mState;
+
+    return OMX_ErrorNone;
+}
+
+}  // namespace android

media/libstagefright/omx/mp3dec/MP3Decoder.h

@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2009 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.
+ */
+
+#ifndef MP3_DECODER_H_
+
+#define MP3_DECODER_H_
+
+#include "../OMXComponentBase.h"
+
+#include <OMX_Component.h>
+
+#include <utils/Vector.h>
+
+namespace android {
+
+struct MP3Decoder : public OMXComponentBase {
+    MP3Decoder(const OMX_CALLBACKTYPE *callbacks, OMX_PTR appData);
+    virtual ~MP3Decoder();
+
+    virtual OMX_ERRORTYPE sendCommand(
+            OMX_COMMANDTYPE cmd, OMX_U32 param, OMX_PTR cmdData);
+
+    virtual OMX_ERRORTYPE getParameter(
+            OMX_INDEXTYPE index, OMX_PTR params);
+
+    virtual OMX_ERRORTYPE setParameter(
+            OMX_INDEXTYPE index, const OMX_PTR params);
+
+    virtual OMX_ERRORTYPE getConfig(
+            OMX_INDEXTYPE index, OMX_PTR config);
+
+    virtual OMX_ERRORTYPE setConfig(
+            OMX_INDEXTYPE index, const OMX_PTR config);
+
+    virtual OMX_ERRORTYPE getExtensionIndex(
+            const OMX_STRING name, OMX_INDEXTYPE *index);
+
+    virtual OMX_ERRORTYPE useBuffer(
+            OMX_BUFFERHEADERTYPE **bufHdr,
+            OMX_U32 portIndex,
+            OMX_PTR appPrivate,
+            OMX_U32 size,
+            OMX_U8 *buffer);
+
+    virtual OMX_ERRORTYPE allocateBuffer(
+            OMX_BUFFERHEADERTYPE **bufHdr,
+            OMX_U32 portIndex,
+            OMX_PTR appPrivate,
+            OMX_U32 size);
+
+    virtual OMX_ERRORTYPE freeBuffer(
+            OMX_U32 portIndex,
+            OMX_BUFFERHEADERTYPE *buffer);
+
+    virtual OMX_ERRORTYPE emptyThisBuffer(OMX_BUFFERHEADERTYPE *buffer);
+    virtual OMX_ERRORTYPE fillThisBuffer(OMX_BUFFERHEADERTYPE *buffer);
+
+    virtual OMX_ERRORTYPE enumerateRoles(OMX_U8 *role, OMX_U32 index);
+
+    virtual OMX_ERRORTYPE getState(OMX_STATETYPE *state);
+
+private:
+    enum {
+        kPortIndexInput  = 0,
+        kPortIndexOutput = 1,
+
+        kNumPorts
+    };
+
+    enum {
+        kPortFlagEnabling = 1
+    };
+
+    struct Port {
+        uint32_t mFlags;
+        Vector<OMX_BUFFERHEADERTYPE *> mBuffers;
+        OMX_PARAM_PORTDEFINITIONTYPE mDefinition;
+    };
+
+    OMX_STATETYPE mState;
+    OMX_STATETYPE mTargetState;
+
+    Port mPorts[kNumPorts];
+
+    void initPort(OMX_U32 portIndex);
+
+    bool portIsDisabledOrPopulated(OMX_U32 portIndex) const;
+
+    OMX_ERRORTYPE useOrAllocateBuffer(
+            OMX_BUFFERHEADERTYPE **out,
+            OMX_U32 portIndex,
+            OMX_PTR appPrivate,
+            OMX_U32 size,
+            OMX_U8 *buffer);
+
+    MP3Decoder(const MP3Decoder &);
+    MP3Decoder &operator=(const MP3Decoder &);
+};
+
+}  // namespace android
+
+#endif  // MP3_DECODER_H_