1/*
2 * Copyright (C) 2009 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 DATA_SOURCE_H_
18
19#define DATA_SOURCE_H_
20
21#include <sys/types.h>
22#include <media/stagefright/MediaErrors.h>
23#include <media/DataSourceBase.h>
24#include <media/IDataSource.h>
25#include <utils/Errors.h>
26#include <utils/RefBase.h>
27#include <utils/threads.h>
28#include <drm/DrmManagerClient.h>
29
30
31namespace android {
32
33class String8;
34
35class DataSource : public DataSourceBase, public virtual RefBase {
36public:
37    DataSource() {}
38
39    // returns a pointer to IDataSource if it is wrapped.
40    virtual sp<IDataSource> getIDataSource() const {
41        return nullptr;
42    }
43
44    virtual String8 toString() {
45        return String8("<unspecified>");
46    }
47
48    virtual status_t reconnectAtOffset(off64_t /*offset*/) {
49        return ERROR_UNSUPPORTED;
50    }
51
52    ////////////////////////////////////////////////////////////////////////////
53
54    // for DRM
55    virtual sp<DecryptHandle> DrmInitialization(const char * /*mime*/ = NULL) {
56        return NULL;
57    }
58
59    virtual String8 getUri() {
60        return String8();
61    }
62
63    virtual bool getUri(char *uriString, size_t bufferSize) final {
64        int ret = snprintf(uriString, bufferSize, "%s", getUri().c_str());
65        return ret >= 0 && static_cast<size_t>(ret) < bufferSize;
66    }
67
68    virtual String8 getMIMEType() const {
69        return String8("application/octet-stream");
70    }
71
72protected:
73    virtual ~DataSource() {}
74
75private:
76    DataSource(const DataSource &);
77    DataSource &operator=(const DataSource &);
78};
79
80}  // namespace android
81
82#endif  // DATA_SOURCE_H_
83