1 /* 2 * Copyright 2014, 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_INFO_H_ 18 19 #define MEDIA_CODEC_INFO_H_ 20 21 #include <binder/Parcel.h> 22 #include <media/stagefright/foundation/ABase.h> 23 #include <media/stagefright/foundation/AString.h> 24 25 #include <sys/types.h> 26 #include <utils/Errors.h> 27 #include <utils/KeyedVector.h> 28 #include <utils/RefBase.h> 29 #include <utils/Vector.h> 30 #include <utils/StrongPointer.h> 31 32 namespace android { 33 34 struct AMessage; 35 struct Parcel; 36 struct CodecCapabilities; 37 38 struct MediaCodecInfo : public RefBase { 39 struct ProfileLevel { 40 uint32_t mProfile; 41 uint32_t mLevel; 42 }; 43 44 struct Capabilities : public RefBase { 45 void getSupportedProfileLevels(Vector<ProfileLevel> *profileLevels) const; 46 void getSupportedColorFormats(Vector<uint32_t> *colorFormats) const; 47 uint32_t getFlags() const; 48 const sp<AMessage> getDetails() const; 49 50 private: 51 Vector<ProfileLevel> mProfileLevels; 52 Vector<uint32_t> mColorFormats; 53 uint32_t mFlags; 54 sp<AMessage> mDetails; 55 56 Capabilities(); 57 58 // read object from parcel even if object creation fails 59 static sp<Capabilities> FromParcel(const Parcel &parcel); 60 status_t writeToParcel(Parcel *parcel) const; 61 62 DISALLOW_EVIL_CONSTRUCTORS(Capabilities); 63 64 friend class MediaCodecInfo; 65 }; 66 67 bool isEncoder() const; 68 bool hasQuirk(const char *name) const; 69 void getSupportedMimes(Vector<AString> *mimes) const; 70 const sp<Capabilities> getCapabilitiesFor(const char *mime) const; 71 const char *getCodecName() const; 72 73 /** 74 * Serialization over Binder 75 */ 76 static sp<MediaCodecInfo> FromParcel(const Parcel &parcel); 77 status_t writeToParcel(Parcel *parcel) const; 78 79 private: 80 // variable set only in constructor - these are accessed by MediaCodecList 81 // to avoid duplication of same variables 82 AString mName; 83 bool mIsEncoder; 84 bool mHasSoleMime; // was initialized with mime 85 86 Vector<AString> mQuirks; 87 KeyedVector<AString, sp<Capabilities> > mCaps; 88 89 sp<Capabilities> mCurrentCaps; // currently initalized capabilities 90 91 ssize_t getCapabilityIndex(const char *mime) const; 92 93 /* Methods used by MediaCodecList to construct the info 94 * object from XML. 95 * 96 * After info object is created: 97 * - additional quirks can be added 98 * - additional mimes can be added 99 * - OMX codec capabilities can be set for the current mime-type 100 * - a capability detail can be set for the current mime-type 101 * - a feature can be set for the current mime-type 102 * - info object can be completed when parsing of a mime-type is done 103 */ 104 MediaCodecInfo(AString name, bool encoder, const char *mime); 105 void addQuirk(const char *name); 106 status_t addMime(const char *mime); 107 status_t initializeCapabilities(const CodecCapabilities &caps); 108 void addDetail(const AString &key, const AString &value); 109 void addFeature(const AString &key, int32_t value); 110 void addFeature(const AString &key, const char *value); 111 void removeMime(const char *mime); 112 void complete(); 113 114 DISALLOW_EVIL_CONSTRUCTORS(MediaCodecInfo); 115 116 friend class MediaCodecList; 117 }; 118 119 } // namespace android 120 121 #endif // MEDIA_CODEC_INFO_H_ 122 123 124
