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#pragma once
#include <QLibrary>
#include <QtDebug>
#include "util/memory.h"
namespace faad2 {
// object types for AAC
constexpr unsigned char MAIN = 1;
constexpr unsigned char LC = 2;
constexpr unsigned char SSR = 3;
constexpr unsigned char LTP = 4;
constexpr unsigned char HE_AAC = 5;
constexpr unsigned char ER_LC = 17;
constexpr unsigned char ER_LTP = 19;
constexpr unsigned char LD = 23;
constexpr unsigned char DRM_ER_LC = 27; // special object type for DRM
// library output formats
constexpr unsigned char FMT_16BIT = 1;
constexpr unsigned char FMT_24BIT = 2;
constexpr unsigned char FMT_32BIT = 3;
constexpr unsigned char FMT_FLOAT = 4;
constexpr unsigned char FMT_FIXED = FMT_FLOAT;
constexpr unsigned char FMT_DOUBLE = 5;
enum class FrameError : unsigned char {
InvalidNumberOfChannels = 12,
InvalidChannelConfiguration = 21,
};
typedef void* DecoderHandle;
extern "C" {
typedef struct
{
unsigned char defObjectType;
unsigned long defSampleRate;
unsigned char outputFormat;
unsigned char downMatrix;
unsigned char useOldADTSFormat;
unsigned char dontUpSampleImplicitSBR;
} Configuration;
typedef struct
{
unsigned long bytesconsumed;
unsigned long samples;
unsigned char channels;
unsigned char error;
unsigned long samplerate;
// SBR: 0: off, 1: on; upsample, 2: on; downsampled, 3: off; upsampled
unsigned char sbr;
// MPEG-4 ObjectType
unsigned char object_type;
// AAC header type; MP4 will be signalled as RAW also
unsigned char header_type;
// multichannel configuration
unsigned char num_front_channels;
unsigned char num_side_channels;
unsigned char num_back_channels;
unsigned char num_lfe_channels;
unsigned char channel_position[64];
// PS: 0: off, 1: on
unsigned char ps;
} FrameInfo;
} // extern "C"
class LibLoader {
public:
static LibLoader* Instance();
bool isLoaded() const;
DecoderHandle Open() const;
Configuration* GetCurrentConfiguration(
DecoderHandle hDecoder) const;
unsigned char SetConfiguration(
DecoderHandle hDecoder, Configuration* config) const;
// Init the decoder using the AAC stream (ADTS/ADIF)
long Init(
DecoderHandle hDecoder,
unsigned char* pBuffer,
unsigned long sizeofBuffer,
unsigned long* pSampleRate,
unsigned char* pChannels) const;
// Init the decoder using a DecoderSpecificInfo
char Init2(
DecoderHandle hDecoder,
unsigned char* pBuffer,
unsigned long sizeofBuffer,
unsigned long* pSampleRate,
unsigned char* pChannels) const;
void Close(DecoderHandle hDecoder) const;
void PostSeekReset(DecoderHandle hDecoder, long frame) const;
void* Decode2(
DecoderHandle hDecoder,
FrameInfo* pInfo,
unsigned char* pBuffer,
unsigned long bufferSize,
void** ppSampleBuffer,
unsigned long sampleBufferSize) const;
char* GetErrorMessage(unsigned char errcode) const;
int GetVersion(
char** faad2_id_string,
char** faad2_copyright_string) const;
private:
LibLoader();
LibLoader(const LibLoader&) = delete;
LibLoader& operator=(const LibLoader&) = delete;
// QLibrary is not copy-able
std::unique_ptr<QLibrary> m_pLibrary;
typedef DecoderHandle (*NeAACDecOpen_t)();
NeAACDecOpen_t m_neAACDecOpen;
typedef Configuration* (*NeAACDecGetCurrentConfiguration_t)(DecoderHandle);
NeAACDecGetCurrentConfiguration_t m_neAACDecGetCurrentConfiguration;
typedef unsigned char (*NeAACDecSetConfiguration_t)(
DecoderHandle, Configuration*);
NeAACDecSetConfiguration_t m_neAACDecSetConfiguration;
typedef long (*NeAACDecInit_t)(
DecoderHandle, unsigned char*, unsigned long, unsigned long*, unsigned char*);
NeAACDecInit_t m_neAACDecInit;
typedef char (*NeAACDecInit2_t)(
DecoderHandle, unsigned char*, unsigned long, unsigned long*, unsigned char*);
NeAACDecInit2_t m_neAACDecInit2;
typedef void (*NeAACDecClose_t)(DecoderHandle);
NeAACDecClose_t m_neAACDecClose;
typedef void (*NeAACDecPostSeekReset_t)(DecoderHandle, long);
NeAACDecPostSeekReset_t m_neAACDecPostSeekReset;
typedef void* (*NeAACDecDecode2_t)(
DecoderHandle, FrameInfo*, unsigned char*, unsigned long, void**, unsigned long);
NeAACDecDecode2_t m_neAACDecDecode2;
typedef char* (*NeAACDecGetErrorMessage_t)(unsigned char);
NeAACDecGetErrorMessage_t m_neAACDecGetErrorMessage;
typedef int (*NeAACDecGetVersion_t)(
char** faad2_id_string,
char** faad2_copyright_string);
NeAACDecGetVersion_t m_neAACDecGetVersion;
};
} // namespace faad2
QDebug operator<<(
QDebug dbg,
const faad2::Configuration& cfg);
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