waveutils.h

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/* Copyright 2017 ID R&D Inc. All Rights Reserved. */

#pragma once

#include <vector>
#include <string>
#include <fstream>
#include <voicesdk/core/config.h>

namespace voicesdk {

    struct AudioInfo {

        size_t samplesNum;

        size_t sampleRate;

        size_t channelsNum;

        AudioInfo() = default;

        AudioInfo(size_t samplesNum, size_t sampleRate, size_t channelsNum) :
            samplesNum(samplesNum),
            sampleRate(sampleRate),
            channelsNum(channelsNum)
        {}

        friend std::ostream &operator<<(std::ostream &os, const AudioInfo &obj) {
            os << "AudioInfo["
               << "samplesNum: " << obj.samplesNum << ", "
               << "sampleRate: " << obj.sampleRate << ", "
               << "channelsNum: " << obj.channelsNum << "]";
            return os;
        }

        bool operator==(const AudioInfo& other) const {
            return samplesNum  == other.samplesNum
                && sampleRate  == other.sampleRate
                && channelsNum == other.channelsNum;
        }
    };

    struct VOICE_SDK_API WavUtils {

        static std::vector<uint8_t> readAsPCM16Bytes(
            const std::string& wavFile,
            size_t& sampleRate);

        static std::vector<int16_t> readAsPCM16Samples(
            const std::string& wavFile,
            size_t& sampleRate);

        static std::vector<float> readAsFloatSamples(
            const std::string& wavFile,
            size_t& sampleRate);

        static std::vector<float> readAsFloatSamples16Bit(
            const std::string& wavFile,
            size_t& sampleRate);

        static std::vector<uint8_t> readAsPCM16Bytes(
            const uint8_t* data,
            size_t dataSize,
            size_t& sampleRate);

        static std::vector<int16_t> readAsPCM16Samples(
            const uint8_t* data,
            size_t dataSize,
            size_t& sampleRate);

        static std::vector<float> readAsFloatSamples(
            const uint8_t* data,
            size_t dataSize,
            size_t& sampleRate);

        static std::vector<float> readAsFloatSamples16Bit(
            const uint8_t* data,
            size_t dataSize,
            size_t& sampleRate);

        static AudioInfo getAudioInfo(const std::string& wavFile);

        static AudioInfo getAudioInfo(const uint8_t* data, size_t dataSize);

        WavUtils() = delete;
    };
}