1 /* 2 * Copyright (C) 2021 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 I_CODEC_PARAMS_MGR_H 17 #define I_CODEC_PARAMS_MGR_H 18 19 #include <gst/gst.h> 20 #include "nocopyable.h" 21 #include "i_codec_common.h" 22 23 namespace OHOS { 24 namespace Media { 25 class ICodecParamsMgr { 26 public: 27 virtual ~ICodecParamsMgr() = default; 28 29 /** 30 * @brief Set param with key, and value is in element. 31 * 32 * Every codec need to set param before start. 33 * 34 * @return Returns GST_CODEC_OK successful; 35 * @since 1.0 36 * @version 1.0 37 */ 38 virtual int32_t SetParameter(GstCodecParamKey key, GstElement *element) = 0; 39 40 /** 41 * @brief update the value in element with key. 42 * 43 * Suggest to get parameter before set. 44 * 45 * @return Returns GST_CODEC_OK successful; 46 * @since 1.0 47 * @version 1.0 48 */ 49 virtual int32_t GetParameter(GstCodecParamKey key, GstElement *element) = 0; 50 }; 51 } // namespace Media 52 } // namespace OHOS 53 #endif // I_CODEC_PARAMS_MGR_H 54