1 /* 2 * Copyright (c) 2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef HCODEC_UTILS_H 17 #define HCODEC_UTILS_H 18 19 namespace OHOS::MediaAVCodec { 20 inline constexpr int TIME_RATIO_S_TO_MS = 1000; 21 inline constexpr double US_TO_MS = 1000.0; 22 inline constexpr double US_TO_S = 1000000.0; 23 GetYuv420Size(uint32_t w,uint32_t h)24inline uint32_t GetYuv420Size(uint32_t w, uint32_t h) 25 { 26 return w * h * 3 / 2; // 3: nom of ratio, 2: denom of ratio 27 } 28 } 29 #endif // HCODEC_UTILS_H 30