1 /* 2 * Copyright (C) 2011 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_URI_SOURCE_H_ 18 19 #define DATA_URI_SOURCE_H_ 20 21 #include <stdio.h> 22 23 #include <media/stagefright/DataSource.h> 24 #include <media/stagefright/MediaErrors.h> 25 #include <media/stagefright/foundation/AString.h> 26 27 namespace android { 28 29 class DataUriSource : public DataSource { 30 public: 31 DataUriSource(const char *uri); 32 33 virtual status_t initCheck() const { 34 return mInited; 35 } 36 37 virtual ssize_t readAt(off64_t offset, void *data, size_t size); 38 39 virtual status_t getSize(off64_t *size) { 40 if (mInited != OK) { 41 return mInited; 42 } 43 44 *size = mData.size(); 45 return OK; 46 } 47 48 virtual String8 getUri() { 49 return mDataUri; 50 } 51 52 virtual String8 getMIMEType() const { 53 return mMimeType; 54 } 55 56 protected: 57 virtual ~DataUriSource() { 58 // Nothing to delete. 59 } 60 61 private: 62 const String8 mDataUri; 63 64 String8 mMimeType; 65 // Use AString because individual bytes may not be valid UTF8 chars. 66 AString mData; 67 status_t mInited; 68 69 // Disallow copy and assign. 70 DataUriSource(const DataUriSource &); 71 DataUriSource &operator=(const DataUriSource &); 72 }; 73 74 } // namespace android 75 76 #endif // DATA_URI_SOURCE_H_ 77