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 extern const char *kMaxEncoderInputBuffers; 36 37 struct AMessage; 38 39 struct MediaCodecList : public BnMediaCodecList { 40 static sp<IMediaCodecList> getInstance(); 41 42 virtual ssize_t findCodecByType( 43 const char *type, bool encoder, size_t startIndex = 0) const; 44 45 virtual ssize_t findCodecByName(const char *name) const; 46 47 virtual size_t countCodecs() const; 48 getCodecInfoMediaCodecList49 virtual sp<MediaCodecInfo> getCodecInfo(size_t index) const { 50 if (index >= mCodecInfos.size()) { 51 ALOGE("b/24445127"); 52 return NULL; 53 } 54 return mCodecInfos.itemAt(index); 55 } 56 57 virtual const sp<AMessage> getGlobalSettings() const; 58 59 // to be used by MediaPlayerService alone 60 static sp<IMediaCodecList> getLocalInstance(); 61 62 // only to be used by getLocalInstance 63 static void *profilerThreadWrapper(void * /*arg*/); 64 65 // only to be used by MediaPlayerService 66 void parseTopLevelXMLFile(const char *path, bool ignore_errors = false); 67 68 private: 69 class BinderDeathObserver : public IBinder::DeathRecipient { 70 void binderDied(const wp<IBinder> &the_late_who __unused); 71 }; 72 73 static sp<BinderDeathObserver> sBinderDeathObserver; 74 75 enum Section { 76 SECTION_TOPLEVEL, 77 SECTION_SETTINGS, 78 SECTION_DECODERS, 79 SECTION_DECODER, 80 SECTION_DECODER_TYPE, 81 SECTION_ENCODERS, 82 SECTION_ENCODER, 83 SECTION_ENCODER_TYPE, 84 SECTION_INCLUDE, 85 }; 86 87 static sp<IMediaCodecList> sCodecList; 88 static sp<IMediaCodecList> sRemoteList; 89 90 status_t mInitCheck; 91 Section mCurrentSection; 92 bool mUpdate; 93 Vector<Section> mPastSections; 94 int32_t mDepth; 95 AString mHrefBase; 96 97 sp<AMessage> mGlobalSettings; 98 KeyedVector<AString, CodecSettings> mOverrides; 99 100 Vector<sp<MediaCodecInfo> > mCodecInfos; 101 sp<MediaCodecInfo> mCurrentInfo; 102 sp<IOMX> mOMX; 103 104 MediaCodecList(); 105 ~MediaCodecList(); 106 107 status_t initCheck() const; 108 void parseXMLFile(const char *path); 109 110 static void StartElementHandlerWrapper( 111 void *me, const char *name, const char **attrs); 112 113 static void EndElementHandlerWrapper(void *me, const char *name); 114 115 void startElementHandler(const char *name, const char **attrs); 116 void endElementHandler(const char *name); 117 118 status_t includeXMLFile(const char **attrs); 119 status_t addSettingFromAttributes(const char **attrs); 120 status_t addMediaCodecFromAttributes(bool encoder, const char **attrs); 121 void addMediaCodec(bool encoder, const char *name, const char *type = NULL); 122 123 void setCurrentCodecInfo(bool encoder, const char *name, const char *type); 124 125 status_t addQuirk(const char **attrs); 126 status_t addTypeFromAttributes(const char **attrs); 127 status_t addLimit(const char **attrs); 128 status_t addFeature(const char **attrs); 129 void addType(const char *name); 130 131 status_t initializeCapabilities(const char *type); 132 133 DISALLOW_EVIL_CONSTRUCTORS(MediaCodecList); 134 }; 135 136 } // namespace android 137 138 #endif // MEDIA_CODEC_LIST_H_ 139 140