1 /* 2 * Copyright 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 MEDIA_CODEC_LIST_H_ 18 19 #define MEDIA_CODEC_LIST_H_ 20 21 #include <media/stagefright/foundation/ABase.h> 22 #include <media/stagefright/foundation/AString.h> 23 #include <media/IMediaCodecList.h> 24 #include <media/IOMX.h> 25 #include <media/MediaCodecInfo.h> 26 27 #include <sys/types.h> 28 #include <utils/Errors.h> 29 #include <utils/KeyedVector.h> 30 #include <utils/Vector.h> 31 #include <utils/StrongPointer.h> 32 33 namespace android { 34 35 struct AMessage; 36 37 struct MediaCodecList : public BnMediaCodecList { 38 static sp<IMediaCodecList> getInstance(); 39 40 virtual ssize_t findCodecByType( 41 const char *type, bool encoder, size_t startIndex = 0) const; 42 43 virtual ssize_t findCodecByName(const char *name) const; 44 45 virtual size_t countCodecs() const; 46 47 virtual sp<MediaCodecInfo> getCodecInfo(size_t index) const { 48 return mCodecInfos.itemAt(index); 49 } 50 51 // to be used by MediaPlayerService alone 52 static sp<IMediaCodecList> getLocalInstance(); 53 54 private: 55 class BinderDeathObserver : public IBinder::DeathRecipient { 56 void binderDied(const wp<IBinder> &the_late_who __unused); 57 }; 58 59 static sp<BinderDeathObserver> sBinderDeathObserver; 60 61 enum Section { 62 SECTION_TOPLEVEL, 63 SECTION_DECODERS, 64 SECTION_DECODER, 65 SECTION_DECODER_TYPE, 66 SECTION_ENCODERS, 67 SECTION_ENCODER, 68 SECTION_ENCODER_TYPE, 69 SECTION_INCLUDE, 70 }; 71 72 static sp<IMediaCodecList> sCodecList; 73 static sp<IMediaCodecList> sRemoteList; 74 75 status_t mInitCheck; 76 Section mCurrentSection; 77 Vector<Section> mPastSections; 78 int32_t mDepth; 79 AString mHrefBase; 80 81 Vector<sp<MediaCodecInfo> > mCodecInfos; 82 sp<MediaCodecInfo> mCurrentInfo; 83 sp<IOMX> mOMX; 84 85 MediaCodecList(); 86 ~MediaCodecList(); 87 88 status_t initCheck() const; 89 void parseXMLFile(const char *path); 90 void parseTopLevelXMLFile(const char *path); 91 92 static void StartElementHandlerWrapper( 93 void *me, const char *name, const char **attrs); 94 95 static void EndElementHandlerWrapper(void *me, const char *name); 96 97 void startElementHandler(const char *name, const char **attrs); 98 void endElementHandler(const char *name); 99 100 status_t includeXMLFile(const char **attrs); 101 status_t addMediaCodecFromAttributes(bool encoder, const char **attrs); 102 void addMediaCodec(bool encoder, const char *name, const char *type = NULL); 103 104 status_t addQuirk(const char **attrs); 105 status_t addTypeFromAttributes(const char **attrs); 106 status_t addLimit(const char **attrs); 107 status_t addFeature(const char **attrs); 108 void addType(const char *name); 109 110 status_t initializeCapabilities(const char *type); 111 112 DISALLOW_EVIL_CONSTRUCTORS(MediaCodecList); 113 }; 114 115 } // namespace android 116 117 #endif // MEDIA_CODEC_LIST_H_ 118 119
