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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 STREAM_SOURCE_H_
18 
19 #define STREAM_SOURCE_H_
20 
21 #include <stdio.h>
22 
23 #include <core/SkStream.h>
24 #include <media/stagefright/DataSource.h>
25 #include <media/stagefright/MediaErrors.h>
26 #include <utils/threads.h>
27 
28 namespace android {
29 
30 class StreamSource : public DataSource {
31 public:
32     // Pass the ownership of SkStream to StreamSource.
33     StreamSource(SkStream *SkStream);
34     virtual status_t initCheck() const;
35     virtual ssize_t readAt(off64_t offset, void *data, size_t size);
36     virtual status_t getSize(off64_t *size);
37 
38 protected:
39     virtual ~StreamSource();
40 
41 private:
42     SkStream *mStream;
43     size_t mSize;
44     Mutex mLock;
45 
46     StreamSource(const StreamSource &);
47     StreamSource &operator=(const StreamSource &);
48 };
49 
50 }  // namespace android
51 
52 #endif  // STREAM_SOURCE_H_
53