Transcoder.h

// Copyright (c) 2016-2018 Kiwano - Nomango
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
 
#pragma once
#include <kiwano/core/Resource.h>
#include <mfapi.h>
#include <mfidl.h>
#include <mfreadwrite.h>
 
namespace kiwano
{
namespace audio
{
class Sound;
 
class KGE_API Transcoder
{
    friend class Sound;
 
public:
    struct Buffer
    {
        BYTE*               data;    
        uint32_t            size;    
        const WAVEFORMATEX* format;  
    };
 
    Transcoder();
 
    ~Transcoder();
 
    Buffer GetBuffer() const;
 
    void ClearBuffer();
 
private:
    HRESULT LoadMediaFile(const String& file_path);
 
    HRESULT LoadMediaResource(const Resource& res);
 
    HRESULT ReadSource(IMFSourceReader* reader);
 
private:
    BYTE*         wave_data_;
    uint32_t      wave_size_;
    WAVEFORMATEX* wave_format_;
};
 
}  // namespace audio
}  // namespace kiwano