55 lines
1.3 KiB
C++
55 lines
1.3 KiB
C++
// Copyright (c) Wojciech Figat. All rights reserved.
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#pragma once
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#if COMPILE_WITH_AUDIO_TOOL
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#include "AudioDecoder.h"
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#include "Engine/Serialization/ReadStream.h"
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/// <summary>
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/// Decodes .wav audio data into raw PCM format.
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/// </summary>
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/// <seealso cref="AudioDecoder" />
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class WaveDecoder : public AudioDecoder
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{
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private:
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ReadStream* mStream;
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uint16 mFormat;
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uint32 mDataOffset;
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uint32 mBytesPerSample;
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public:
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/// <summary>
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/// Initializes a new instance of the <see cref="WaveDecoder"/> class.
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/// </summary>
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WaveDecoder()
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{
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mStream = nullptr;
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mFormat = 0;
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mDataOffset = 0;
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mBytesPerSample = 0;
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}
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private:
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/// <summary>
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/// Parses the WAVE header and output audio file meta-data. Returns false if the header is not valid.
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/// </summary>
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/// <param name="info">The output information.</param>
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/// <returns>True if header is valid, otherwise false.</returns>
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bool ParseHeader(AudioDataInfo& info);
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public:
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// [AudioDecoder]
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bool Open(ReadStream* stream, AudioDataInfo& info, uint32 offset = 0) override;
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void Seek(uint32 offset) override;
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void Read(byte* samples, uint32 numSamples) override;
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bool IsValid(ReadStream* stream, uint32 offset = 0) override;
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};
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#endif
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