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 MEDIA_DATA_SOURCE_PROXY_H
17 #define MEDIA_DATA_SOURCE_PROXY_H
18 
19 #include "i_standard_media_data_source.h"
20 #include "media_death_recipient.h"
21 #include "nocopyable.h"
22 
23 namespace OHOS {
24 namespace Media {
25 class MediaDataCallback : public IMediaDataSource, public NoCopyable {
26 public:
27     explicit MediaDataCallback(const sptr<IStandardMediaDataSource> &ipcProxy);
28     virtual ~MediaDataCallback();
29 
30     int32_t ReadAt(const std::shared_ptr<AVSharedMemory> &mem, uint32_t length, int64_t pos = -1) override;
31     int32_t GetSize(int64_t &size) override;
32 
33     // This interface has been deprecated
34     int32_t ReadAt(int64_t pos, uint32_t length, const std::shared_ptr<AVSharedMemory> &mem) override;
35     // This interface has been deprecated
36     int32_t ReadAt(uint32_t length, const std::shared_ptr<AVSharedMemory> &mem) override;
37 private:
38     sptr<IStandardMediaDataSource> callbackProxy_ = nullptr;
39 };
40 
41 class MediaDataSourceProxy : public IRemoteProxy<IStandardMediaDataSource>, public NoCopyable {
42 public:
43     explicit MediaDataSourceProxy(const sptr<IRemoteObject> &impl);
44     virtual ~MediaDataSourceProxy();
45 
46     int32_t ReadAt(const std::shared_ptr<AVSharedMemory> &mem, uint32_t length, int64_t pos = -1,
47         bool isHistreamer = false) override;
48     int32_t GetSize(int64_t &size) override;
49 
50 private:
51     class BufferCache;
52     std::unique_ptr<BufferCache> BufferCache_;
53     static inline BrokerDelegator<MediaDataSourceProxy> delegator_;
54 };
55 } // namespace Media
56 } // namespace OHOS
57 #endif // MEDIA_DATA_SOURCE_PROXY_H