1 /* ------------------------------------------------------------------
2 * Copyright (C) 1998-2009 PacketVideo
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
13 * express or implied.
14 * See the License for the specific language governing permissions
15 * and limitations under the License.
16 * -------------------------------------------------------------------
17 */
18 /* This file defines a PV NodeSharedLibrary interface that populates the
19 registry with the nodes required for mp4 playback.
20 */
21 #ifndef PVMF_NODE_SHARED_LIB_INTERFACE_H_INCLUDED
22 #include "pvmf_node_shared_lib_interface.h"
23 #endif
24
25 #ifndef PVMF_MP4FFPARSER_FACTORY_H_INCLUDED
26 #include "pvmf_mp4ffparser_factory.h"
27 #endif
28
29 #ifndef PVMP4FFREC_FACTORY_H_INCLUDED
30 #include "pvmp4ffrec_factory.h"
31 #endif
32
33 #ifndef PVMF_RECOGNIZER_REGISTRY_H_INCLUDED
34 #include "pvmf_recognizer_registry.h"
35 #endif
36
37 #ifndef OSCLCONFIG_H_INCLUDED
38 #include "osclconfig.h"
39 #endif
40
41 #ifndef OSCL_SHARED_LIBRARY_H_INCLUDED
42 #include "oscl_shared_library.h"
43 #endif
44
45 #ifndef PVMFMP4NODEREG_H_INCLUDED
46 #include "pvmfmp4nodereg.h"
47 #endif
48
49 #define MP4_LIB_NAME "libopencore_mp4local.so"
50
51 #define NODE_REGISTRY_LIB_NAME_MAX_LENGTH 64
52
53 typedef PVMFNodeInterface*(* LPFN_NODE_CREATE_FUNC)(int32);
54
55 typedef bool (* LPFN_NODE_RELEASE_FUNC)(PVMFNodeInterface *);
56
57 // Factory functions
CreateMp4ParserNode(int32 aPriority)58 PVMFNodeInterface* Mp4NodesCoreLibraryLoader::CreateMp4ParserNode(int32 aPriority)
59 {
60 OsclSharedLibrary* mp4SharedLibrary = NULL;
61 OSCL_StackString<NODE_REGISTRY_LIB_NAME_MAX_LENGTH> libname(MP4_LIB_NAME);
62
63 // Need to load the library for the node
64 mp4SharedLibrary = OSCL_NEW(OsclSharedLibrary, (libname));
65 OsclLibStatus result = mp4SharedLibrary->LoadLib();
66 if (OsclLibSuccess != result)
67 {
68 return NULL;
69 }
70
71 mp4SharedLibrary->AddRef();
72
73 // Query for create function
74 OsclAny* interfacePtr = NULL;
75
76 mp4SharedLibrary->QueryInterface(PV_NODE_INTERFACE, (OsclAny*&)interfacePtr);
77
78 NodeSharedLibraryInterface* nodeIntPtr = OSCL_DYNAMIC_CAST(NodeSharedLibraryInterface*, interfacePtr);
79
80 OsclAny* createFuncTemp = nodeIntPtr->QueryNodeInterface(KPVMFMP4FFParserNodeUuid, PV_CREATE_NODE_INTERFACE);
81
82 LPFN_NODE_CREATE_FUNC nodeCreateFunc = OSCL_DYNAMIC_CAST(PVMFNodeInterface * (*)(int32), createFuncTemp);
83
84 if (NULL != nodeCreateFunc)
85 {
86 PVMFNodeInterface* node = NULL;
87 // call the real node factory function
88 node = (*(nodeCreateFunc))(aPriority);
89 if (NULL == node)
90 {
91 mp4SharedLibrary->RemoveRef();
92
93 if (OsclLibSuccess == mp4SharedLibrary->Close())
94 {
95 // Close will unload the library if refcount is 0
96 OSCL_DELETE(mp4SharedLibrary);
97 }
98
99 return NULL;
100 }
101 node->SetSharedLibraryPtr(mp4SharedLibrary);
102 return node;
103 }
104 return NULL;
105 }
106
107
DeleteMp4ParserNode(PVMFNodeInterface * aNode)108 bool Mp4NodesCoreLibraryLoader::DeleteMp4ParserNode(PVMFNodeInterface* aNode)
109 {
110 bool bStatus = false;
111 OsclSharedLibrary* mp4SharedLibrary = NULL;
112
113 if (NULL == aNode)
114 {
115 return false;
116 }
117
118 // Retrieve shared library pointer
119 mp4SharedLibrary = aNode->GetSharedLibraryPtr();
120
121 if (NULL != mp4SharedLibrary)
122 {
123 // Query for release function
124 OsclAny* interfacePtr = NULL;
125
126 mp4SharedLibrary->QueryInterface(PV_NODE_INTERFACE, (OsclAny*&)interfacePtr);
127
128 NodeSharedLibraryInterface* nodeIntPtr = OSCL_DYNAMIC_CAST(NodeSharedLibraryInterface*, interfacePtr);
129
130 OsclAny* releaseFuncTemp = nodeIntPtr->QueryNodeInterface(KPVMFMP4FFParserNodeUuid, PV_RELEASE_NODE_INTERFACE);
131
132 LPFN_NODE_RELEASE_FUNC nodeReleaseFunc = OSCL_DYNAMIC_CAST(bool (*)(PVMFNodeInterface*), releaseFuncTemp);
133
134 if (NULL != nodeReleaseFunc)
135 {
136 bStatus = (*(nodeReleaseFunc))(aNode);
137 }
138
139 mp4SharedLibrary->RemoveRef();
140
141 if (OsclLibSuccess == mp4SharedLibrary->Close())
142 {
143 // Close will unload the library if refcount is 0
144 OSCL_DELETE(mp4SharedLibrary);
145 }
146 }
147
148 return bStatus;
149 }
150
151 class Mp4NodesRegistryInterface: public OsclSharedLibraryInterface,
152 public NodeRegistryPopulatorInterface,
153 public RecognizerPopulatorInterface
154 {
155 public:
Mp4NodesRegistryInterface()156 Mp4NodesRegistryInterface() {};
157
158 // From NodeRegistryPopulatorInterface
RegisterAllNodes(PVPlayerNodeRegistryInterface * aRegistry,OsclAny * & aContext)159 void RegisterAllNodes(PVPlayerNodeRegistryInterface* aRegistry, OsclAny*& aContext)
160 {
161 PVPlayerNodeInfo nodeinfo;
162
163 OSCL_StackString<NODE_REGISTRY_LIB_NAME_MAX_LENGTH> libname = MP4_LIB_NAME;
164
165 Oscl_Vector<PVPlayerNodeInfo, OsclMemAllocator>* nodeList = new Oscl_Vector<PVPlayerNodeInfo, OsclMemAllocator>;
166
167 //For PVMFMP4FFParserNode
168 nodeinfo.iInputTypes.clear();
169 nodeinfo.iInputTypes.push_back(PVMF_MIME_MPEG4FF);
170 nodeinfo.iNodeUUID = KPVMFMP4FFParserNodeUuid;
171 nodeinfo.iOutputType.clear();
172 nodeinfo.iOutputType.push_back(PVMF_MIME_FORMAT_UNKNOWN);
173 nodeinfo.iNodeCreateFunc = (Mp4NodesCoreLibraryLoader::CreateMp4ParserNode);
174 nodeinfo.iNodeReleaseFunc = (Mp4NodesCoreLibraryLoader::DeleteMp4ParserNode);
175
176 aRegistry->RegisterNode(nodeinfo);
177
178 nodeList->push_back(nodeinfo);
179
180 aContext = (OsclAny *)nodeList;
181
182 };
183
184 // From NodeRegistryPopulatorInterface
UnregisterAllNodes(PVPlayerNodeRegistryInterface * aRegistry,OsclAny * aContext)185 void UnregisterAllNodes(PVPlayerNodeRegistryInterface* aRegistry, OsclAny* aContext)
186 {
187 if (NULL != aContext)
188 {
189 Oscl_Vector<PVPlayerNodeInfo, OsclMemAllocator>* nodeList = (Oscl_Vector<PVPlayerNodeInfo, OsclMemAllocator> *)aContext;
190
191 while (!nodeList->empty())
192 {
193 PVPlayerNodeInfo tmpnode = nodeList->front();
194 aRegistry->UnregisterNode(tmpnode);
195 nodeList->erase(nodeList->begin());
196 }
197
198 delete nodeList;
199 }
200 };
201
202
203 // From RecognizerPopulatorInterface
RegisterAllRecognizers(PVPlayerRecognizerRegistryInterface * aRegistry,OsclAny * & aContext)204 void RegisterAllRecognizers(PVPlayerRecognizerRegistryInterface* aRegistry, OsclAny*& aContext)
205 {
206 PVMFRecognizerPluginFactory* tmpfac = NULL;
207
208 Oscl_Vector<PVMFRecognizerPluginFactory*, OsclMemAllocator>* pluginList =
209 new Oscl_Vector<PVMFRecognizerPluginFactory*, OsclMemAllocator>;
210
211 tmpfac =
212 OSCL_STATIC_CAST(PVMFRecognizerPluginFactory*, OSCL_NEW(PVMP4FFRecognizerFactory, ()));
213 aRegistry->RegisterRecognizer(tmpfac);
214
215 pluginList->push_back(tmpfac);
216
217 aContext = (OsclAny *)pluginList;
218 };
219
220
UnregisterAllRecognizers(PVPlayerRecognizerRegistryInterface * aRegistry,OsclAny * aContext)221 void UnregisterAllRecognizers(PVPlayerRecognizerRegistryInterface* aRegistry, OsclAny* aContext)
222 {
223 if (NULL != aContext)
224 {
225 Oscl_Vector<PVMFRecognizerPluginFactory*, OsclMemAllocator>* pluginList = (Oscl_Vector<PVMFRecognizerPluginFactory*, OsclMemAllocator>*)aContext;
226
227 while (!pluginList->empty())
228 {
229 PVMFRecognizerPluginFactory* tmpfac = pluginList->front();
230
231 aRegistry->UnregisterRecognizer(tmpfac);
232
233 pluginList->erase(pluginList->begin());
234
235 OSCL_DELETE(tmpfac);
236 }
237
238 delete pluginList;
239 }
240 };
241
242 // From OsclSharedLibraryInterface
SharedLibraryLookup(const OsclUuid & aInterfaceId)243 OsclAny* SharedLibraryLookup(const OsclUuid& aInterfaceId)
244 {
245 if (aInterfaceId == PV_NODE_REGISTRY_POPULATOR_INTERFACE)
246 {
247 return OSCL_STATIC_CAST(NodeRegistryPopulatorInterface*, this);
248 }
249 else if (aInterfaceId == PV_RECOGNIZER_POPULATOR_INTERFACE)
250 {
251 return OSCL_STATIC_CAST(RecognizerPopulatorInterface*, this);
252 }
253 return NULL;
254 };
255 };
256
257
258 extern "C"
259 {
PVGetInterface(void)260 OSCL_EXPORT_REF OsclSharedLibraryInterface *PVGetInterface(void)
261 {
262 return OSCL_NEW(Mp4NodesRegistryInterface, ());
263 }
PVReleaseInterface(OsclSharedLibraryInterface * aInstance)264 OSCL_EXPORT_REF void PVReleaseInterface(OsclSharedLibraryInterface* aInstance)
265 {
266 OSCL_DELETE(aInstance);
267 }
268 }
269
270