| /* |
| * 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 VORBIS_DECODER_H_ |
| |
| #define VORBIS_DECODER_H_ |
| |
| #include <media/stagefright/MediaSource.h> |
| |
| struct vorbis_dsp_state; |
| struct vorbis_info; |
| |
| namespace android { |
| |
| struct MediaBufferGroup; |
| |
| struct VorbisDecoder : public MediaSource { |
| VorbisDecoder(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 ~VorbisDecoder(); |
| |
| private: |
| enum { |
| kMaxNumSamplesPerBuffer = 8192 * 2 |
| }; |
| |
| sp<MediaSource> mSource; |
| bool mStarted; |
| |
| MediaBufferGroup *mBufferGroup; |
| |
| int32_t mNumChannels; |
| int32_t mSampleRate; |
| int64_t mAnchorTimeUs; |
| int64_t mNumFramesOutput; |
| int32_t mNumFramesLeftOnPage; |
| |
| vorbis_dsp_state *mState; |
| vorbis_info *mVi; |
| |
| int decodePacket(MediaBuffer *packet, MediaBuffer *out); |
| |
| VorbisDecoder(const VorbisDecoder &); |
| VorbisDecoder &operator=(const VorbisDecoder &); |
| }; |
| |
| } // namespace android |
| |
| #endif // VORBIS_DECODER_H_ |
| |