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 JPEG_SOURCE_H_ 18 19 #define JPEG_SOURCE_H_ 20 21 #include <media/MediaSource.h> 22 23 namespace android { 24 25 class DataSource; 26 class MediaBufferGroup; 27 28 struct JPEGSource : public MediaSource { 29 JPEGSource(const sp<DataSource> &source); 30 31 virtual status_t start(MetaData *params = NULL); 32 virtual status_t stop(); 33 virtual sp<MetaData> getFormat(); 34 35 virtual status_t read( 36 MediaBufferBase **buffer, const ReadOptions *options = NULL); 37 38 protected: 39 virtual ~JPEGSource(); 40 41 private: 42 sp<DataSource> mSource; 43 MediaBufferGroup *mGroup; 44 bool mStarted; 45 off64_t mSize; 46 int32_t mWidth, mHeight; 47 off64_t mOffset; 48 49 status_t parseJPEG(); 50 51 JPEGSource(const JPEGSource &); 52 JPEGSource &operator=(const JPEGSource &); 53 }; 54 55 } // namespace android 56 57 #endif // JPEG_SOURCE_H_ 58 59
