| /* |
| * Copyright 2015, 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 ANDROID_AUDIO_DTS_FRAME_SCANNER_H |
| #define ANDROID_AUDIO_DTS_FRAME_SCANNER_H |
| |
| #include <stdint.h> |
| #include <audio_utils/spdif/FrameScanner.h> |
| |
| namespace android { |
| |
| #define DTS_NUM_SAMPLE_RATE_TABLE_ENTRIES 16 |
| #define DTS_PCM_FRAMES_PER_BLOCK 32 |
| #define DTS_MAX_BLOCKS_PER_SYNC_FRAME_BLOCK 128 |
| |
| class DTSFrameScanner : public FrameScanner |
| { |
| public: |
| DTSFrameScanner(); |
| virtual ~DTSFrameScanner(); |
| |
| virtual int getMaxChannels() const { return 5 + 1; } |
| |
| virtual int getMaxSampleFramesPerSyncFrame() const { |
| return DTS_MAX_BLOCKS_PER_SYNC_FRAME_BLOCK * DTS_PCM_FRAMES_PER_BLOCK; |
| } |
| |
| virtual int getSampleFramesPerSyncFrame() const { |
| return mSampleFramesPerSyncFrame; |
| } |
| |
| virtual bool isFirstInBurst() { return true; } |
| virtual bool isLastInBurst() { return true; } |
| virtual void resetBurst() { } |
| |
| protected: |
| |
| int mSampleFramesPerSyncFrame; |
| |
| virtual bool parseHeader(); |
| |
| static const uint8_t kSyncBytes[]; |
| static const int32_t kDTSSampleRateTable[]; |
| |
| }; |
| |
| } // namespace android |
| #endif // ANDROID_AUDIO_DTS_FRAME_SCANNER_H |