1 /* 2 * Copyright (C) 2018 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 ANDROID_STAGEFRIGHT_C2PARAM_INTERNAL_H_ 18 #define ANDROID_STAGEFRIGHT_C2PARAM_INTERNAL_H_ 19 20 #include <C2Param.h> 21 22 struct C2_HIDE _C2ParamInspector { GetOffset_C2ParamInspector23 inline static uint32_t GetOffset(const C2FieldDescriptor &fd) { 24 return fd._mFieldId._mOffset; 25 } 26 SetOffset_C2ParamInspector27 inline static void SetOffset(C2FieldDescriptor &fd, uint32_t offset) { 28 fd._mFieldId._mOffset = offset; 29 } 30 31 inline static uint32_t GetEndOffset(const C2FieldDescriptor &fd, uint32_t paramSize = 0) { 32 uint32_t endOffset = fd._mFieldId._mOffset + fd._mExtent * fd._mFieldId._mSize; 33 /// for flex parameters return paramSize if given 34 return fd._mExtent ? endOffset : std::max(endOffset, paramSize); 35 } 36 GetSize_C2ParamInspector37 inline static uint32_t GetSize(const C2FieldDescriptor &fd) { 38 return fd._mFieldId._mSize; 39 } 40 GetIndex_C2ParamInspector41 inline static uint32_t GetIndex(const C2ParamField &pf) { 42 return pf._mIndex; 43 } 44 GetOffset_C2ParamInspector45 inline static uint32_t GetOffset(const C2ParamField &pf) { 46 return pf._mFieldId._mOffset; 47 } 48 GetSize_C2ParamInspector49 inline static uint32_t GetSize(const C2ParamField &pf) { 50 return pf._mFieldId._mSize; 51 } 52 GetOffset_C2ParamInspector53 inline static uint32_t GetOffset(const _C2FieldId &f) { 54 return f._mOffset; 55 } 56 GetSize_C2ParamInspector57 inline static uint32_t GetSize(const _C2FieldId &f) { 58 return f._mSize; 59 } 60 GetField_C2ParamInspector61 inline static _C2FieldId GetField(const C2FieldDescriptor &fd) { 62 return fd._mFieldId; 63 } 64 GetAttrib_C2ParamInspector65 inline static uint32_t GetAttrib(const C2ParamDescriptor &pd) { 66 return pd._mAttrib; 67 } 68 GetField_C2ParamInspector69 inline static _C2FieldId GetField(const C2ParamField &pf) { 70 return pf._mFieldId; 71 } 72 73 inline static CreateParamField_C2ParamInspector74 C2ParamField CreateParamField(C2Param::Index index, uint32_t offset, uint32_t size) { 75 return C2ParamField(index, offset, size); 76 } 77 78 inline static CreateParamField_C2ParamInspector79 C2ParamField CreateParamField(C2Param::Index index, _C2FieldId field) { 80 return C2ParamField(index, field._mOffset, field._mSize); 81 } 82 83 inline static TrimParam_C2ParamInspector84 void TrimParam(C2Param *param, uint32_t newSize) { 85 if (param && *param && param->size() > newSize && newSize >= sizeof(C2Param)) { 86 param->_mSize = newSize; 87 } 88 } 89 AddNamedValues_C2ParamInspector90 inline static void AddNamedValues( 91 C2FieldDescriptor &fd, C2FieldDescriptor::NamedValuesType &&namedValues) { 92 fd._mNamedValues = std::move(namedValues); 93 } 94 95 inline static CreateStructDescriptor_C2ParamInspector96 C2StructDescriptor CreateStructDescriptor(C2Param::CoreIndex index, 97 std::vector<C2FieldDescriptor> &&fields) { 98 return C2StructDescriptor(index, std::move(fields)); 99 } 100 101 inline static OffsetFieldDescriptor_C2ParamInspector102 C2FieldDescriptor OffsetFieldDescriptor(const C2FieldDescriptor &fd, size_t offset) { 103 return C2FieldDescriptor(fd, offset); 104 } 105 106 // expose attributes 107 typedef C2ParamDescriptor::attrib_t attrib_t; 108 }; 109 110 #endif // ANDROID_STAGEFRIGHT_C2PARAM_INTERNAL_H_ 111 112