| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef G711_DECODER_H_ |
| |
| #define G711_DECODER_H_ |
| |
| #include <media/stagefright/MediaSource.h> |
| |
| namespace android { |
| |
| struct MediaBufferGroup; |
| |
| struct G711Decoder : public MediaSource { |
| G711Decoder(const sp<MediaSource> &source); |
| |
| virtual status_t start(MetaData *params); |
| virtual status_t stop(); |
| |
| virtual sp<MetaData> getFormat(); |
| |
| virtual status_t read( |
| MediaBuffer **buffer, const ReadOptions *options); |
| |
| protected: |
| virtual ~G711Decoder(); |
| |
| private: |
| sp<MediaSource> mSource; |
| bool mStarted; |
| bool mIsMLaw; |
| |
| MediaBufferGroup *mBufferGroup; |
| |
| static void DecodeALaw(int16_t *out, const uint8_t *in, size_t inSize); |
| static void DecodeMLaw(int16_t *out, const uint8_t *in, size_t inSize); |
| |
| G711Decoder(const G711Decoder &); |
| G711Decoder &operator=(const G711Decoder &); |
| }; |
| |
| } // namespace android |
| |
| #endif // G711_DECODER_H_ |