1 /*
2 * Copyright (C) 2009 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 #include "QComOMXPlugin.h"
18
19 #include <dlfcn.h>
20
21 #include <media/stagefright/HardwareAPI.h>
22 #include <media/stagefright/MediaDebug.h>
23
24 namespace android {
25
createOMXPlugin()26 OMXPluginBase *createOMXPlugin() {
27 return new QComOMXPlugin;
28 }
29
QComOMXPlugin()30 QComOMXPlugin::QComOMXPlugin()
31 : mLibHandle(dlopen("libOmxCore.so", RTLD_NOW)),
32 mInit(NULL),
33 mDeinit(NULL),
34 mComponentNameEnum(NULL),
35 mGetHandle(NULL),
36 mFreeHandle(NULL),
37 mGetRolesOfComponentHandle(NULL) {
38 if (mLibHandle != NULL) {
39 mInit = (InitFunc)dlsym(mLibHandle, "OMX_Init");
40 mDeinit = (DeinitFunc)dlsym(mLibHandle, "OMX_DeInit");
41
42 mComponentNameEnum =
43 (ComponentNameEnumFunc)dlsym(mLibHandle, "OMX_ComponentNameEnum");
44
45 mGetHandle = (GetHandleFunc)dlsym(mLibHandle, "OMX_GetHandle");
46 mFreeHandle = (FreeHandleFunc)dlsym(mLibHandle, "OMX_FreeHandle");
47
48 mGetRolesOfComponentHandle =
49 (GetRolesOfComponentFunc)dlsym(
50 mLibHandle, "OMX_GetRolesOfComponent");
51
52 (*mInit)();
53 }
54 }
55
~QComOMXPlugin()56 QComOMXPlugin::~QComOMXPlugin() {
57 if (mLibHandle != NULL) {
58 (*mDeinit)();
59
60 dlclose(mLibHandle);
61 mLibHandle = NULL;
62 }
63 }
64
makeComponentInstance(const char * name,const OMX_CALLBACKTYPE * callbacks,OMX_PTR appData,OMX_COMPONENTTYPE ** component)65 OMX_ERRORTYPE QComOMXPlugin::makeComponentInstance(
66 const char *name,
67 const OMX_CALLBACKTYPE *callbacks,
68 OMX_PTR appData,
69 OMX_COMPONENTTYPE **component) {
70 if (mLibHandle == NULL) {
71 return OMX_ErrorUndefined;
72 }
73
74 return (*mGetHandle)(
75 reinterpret_cast<OMX_HANDLETYPE *>(component),
76 const_cast<char *>(name),
77 appData, const_cast<OMX_CALLBACKTYPE *>(callbacks));
78 }
79
destroyComponentInstance(OMX_COMPONENTTYPE * component)80 OMX_ERRORTYPE QComOMXPlugin::destroyComponentInstance(
81 OMX_COMPONENTTYPE *component) {
82 if (mLibHandle == NULL) {
83 return OMX_ErrorUndefined;
84 }
85
86 return (*mFreeHandle)(reinterpret_cast<OMX_HANDLETYPE *>(component));
87 }
88
enumerateComponents(OMX_STRING name,size_t size,OMX_U32 index)89 OMX_ERRORTYPE QComOMXPlugin::enumerateComponents(
90 OMX_STRING name,
91 size_t size,
92 OMX_U32 index) {
93 if (mLibHandle == NULL) {
94 return OMX_ErrorUndefined;
95 }
96
97 return (*mComponentNameEnum)(name, size, index);
98 }
99
getRolesOfComponent(const char * name,Vector<String8> * roles)100 OMX_ERRORTYPE QComOMXPlugin::getRolesOfComponent(
101 const char *name,
102 Vector<String8> *roles) {
103 roles->clear();
104
105 if (mLibHandle == NULL) {
106 return OMX_ErrorUndefined;
107 }
108
109 OMX_U32 numRoles;
110 OMX_ERRORTYPE err = (*mGetRolesOfComponentHandle)(
111 const_cast<OMX_STRING>(name), &numRoles, NULL);
112
113 if (err != OMX_ErrorNone) {
114 return err;
115 }
116
117 if (numRoles > 0) {
118 OMX_U8 **array = new OMX_U8 *[numRoles];
119 for (OMX_U32 i = 0; i < numRoles; ++i) {
120 array[i] = new OMX_U8[OMX_MAX_STRINGNAME_SIZE];
121 }
122
123 OMX_U32 numRoles2;
124 err = (*mGetRolesOfComponentHandle)(
125 const_cast<OMX_STRING>(name), &numRoles2, array);
126
127 CHECK_EQ(err, OMX_ErrorNone);
128 CHECK_EQ(numRoles, numRoles2);
129
130 for (OMX_U32 i = 0; i < numRoles; ++i) {
131 String8 s((const char *)array[i]);
132 roles->push(s);
133
134 delete[] array[i];
135 array[i] = NULL;
136 }
137
138 delete[] array;
139 array = NULL;
140 }
141
142 return OMX_ErrorNone;
143 }
144
145 } // namespace android
146