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61 lines
1.7 KiB
61 lines
1.7 KiB
/* |
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* Copyright 2015, The Android Open Source Project |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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#ifndef ANDROID_AUDIO_DTS_FRAME_SCANNER_H |
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#define ANDROID_AUDIO_DTS_FRAME_SCANNER_H |
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#include <stdint.h> |
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#include <audio_utils/spdif/FrameScanner.h> |
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namespace android { |
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#define DTS_NUM_SAMPLE_RATE_TABLE_ENTRIES 16 |
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#define DTS_PCM_FRAMES_PER_BLOCK 32 |
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#define DTS_MAX_BLOCKS_PER_SYNC_FRAME_BLOCK 128 |
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class DTSFrameScanner : public FrameScanner |
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{ |
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public: |
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DTSFrameScanner(); |
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virtual ~DTSFrameScanner(); |
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virtual int getMaxChannels() const { return 5 + 1; } |
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virtual int getMaxSampleFramesPerSyncFrame() const { |
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return DTS_MAX_BLOCKS_PER_SYNC_FRAME_BLOCK * DTS_PCM_FRAMES_PER_BLOCK; |
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} |
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virtual int getSampleFramesPerSyncFrame() const { |
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return mSampleFramesPerSyncFrame; |
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} |
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virtual bool isFirstInBurst() { return true; } |
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virtual bool isLastInBurst() { return true; } |
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virtual void resetBurst() { } |
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protected: |
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int mSampleFramesPerSyncFrame; |
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virtual bool parseHeader(); |
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static const uint8_t kSyncBytes[]; |
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static const int32_t kDTSSampleRateTable[]; |
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}; |
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} // namespace android |
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#endif // ANDROID_AUDIO_DTS_FRAME_SCANNER_H
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