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62 lines
1.7 KiB
62 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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