/* | |
* Copyright 2019 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 _IO_WAV_WAVFMTCHUNKHEADER_H_ | |
#define _IO_WAV_WAVFMTCHUNKHEADER_H_ | |
#include "WavChunkHeader.h" | |
class InputStream; | |
namespace parselib { | |
/** | |
* Encapsulates a WAV file 'fmt ' chunk. | |
*/ | |
class WavFmtChunkHeader : public WavChunkHeader { | |
public: | |
static const RiffID RIFFID_FMT; | |
// Microsoft Encoding IDs | |
static const short ENCODING_PCM = 1; | |
static const short ENCODING_ADPCM = 2; // Microsoft ADPCM Format | |
static const short ENCODING_IEEE_FLOAT = 3; // samples from -1.0 -> 1.0 | |
RiffInt16 mEncodingId; /** Microsoft WAV encoding ID (see above) */ | |
RiffInt16 mNumChannels; | |
RiffInt32 mSampleRate; | |
RiffInt32 mAveBytesPerSecond; | |
RiffInt16 mBlockAlign; | |
RiffInt16 mSampleSize; | |
RiffInt16 mExtraBytes; | |
WavFmtChunkHeader(); | |
WavFmtChunkHeader(RiffID tag); | |
void normalize(); | |
void read(InputStream *stream); | |
}; | |
} // namespace parselib | |
#endif // _IO_WAV_WAVFMTCHUNKHEADER_H_ |