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/*
* StreamEncoder.h
* ---------------
* Purpose: Exporting streamed music files.
* Notes : none
* Authors: Joern Heusipp
* OpenMPT Devs
* The OpenMPT source code is released under the BSD license. Read LICENSE for more details.
*/
#pragma once
#include "openmpt/all/BuildSettings.hpp"
#include "mpt/base/bit.hpp"
#include "openmpt/soundbase/SampleFormat.hpp"
#include "../soundlib/Tagging.h"
#include <iosfwd>
#include <string>
#include <vector>
OPENMPT_NAMESPACE_BEGIN
inline constexpr int opus_bitrates [] = {
8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160, 192, 224, 256, 320, 384, 448, 510
};
inline constexpr int vorbis_bitrates [] = {
32, 48, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 500
};
inline constexpr int layer3_bitrates [] = {
8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160, 192, 224, 256, 320
};
inline constexpr int mpeg1layer3_bitrates [] = {
32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320
};
inline constexpr uint32 opus_samplerates [] = {
48000,
24000, 16000,
12000, 8000
};
inline constexpr uint32 opus_all_samplerates [] = {
48000, 44100, 32000,
24000, 22050, 16000,
12000, 11025, 8000
};
inline constexpr uint32 vorbis_samplerates [] = {
48000, 44100, 32000,
24000, 22050, 16000,
12000, 11025, 8000
};
inline constexpr uint32 layer3_samplerates [] = {
48000, 44100, 32000,
24000, 22050, 16000
};
inline constexpr uint32 mpeg1layer3_samplerates [] = {
48000, 44100, 32000
};
namespace Encoder
{
enum Mode
{
ModeCBR = 1<<0,
ModeABR = 1<<1,
ModeVBR = 1<<2,
ModeQuality = 1<<3,
ModeLossless = 1<<4,
ModeInvalid = 0
};
struct Format
{
enum class Encoding
{
Float = 1,
Integer = 2,
Alaw = 3,
ulaw = 4,
Unsigned = 5,
};
Encoding encoding;
uint8 bits;
mpt::endian endian;
bool operator==(const Format &other) const
{
return encoding == other.encoding && bits == other.bits && endian == other.endian;
}
bool operator!=(const Format& other) const
{
return encoding != other.encoding || bits != other.bits || endian != other.endian;
}
int32 AsInt() const
{
return (static_cast<int32>(endian == mpt::endian::little) << 16) | (static_cast<int32>(encoding) << 8) | static_cast<int32>(bits);
}
static Format FromInt(int32 val)
{
Encoder::Format f;
f.bits = val & 0xff;
f.encoding = static_cast<Encoder::Format::Encoding>((val >> 8) & 0xff);
f.endian = ((val >> 16) & 0xff) ? mpt::endian::little : mpt::endian::big;
return f;
}
SampleFormat GetSampleFormat() const
{
SampleFormat result = SampleFormat::Invalid;
switch(encoding)
{
case Encoding::Float:
switch(bits)
{
case 32:
result = SampleFormat::Float32;
break;
case 64:
result = SampleFormat::Float64;
break;
}
break;
case Encoding::Integer:
switch(bits)
{
case 8:
result = SampleFormat::Int8;
break;
case 16:
result = SampleFormat::Int16;
break;
case 24:
result = SampleFormat::Int24;
break;
case 32:
result = SampleFormat::Int32;
break;
}
break;
case Encoding::Alaw:
switch (bits)
{
case 16:
result = SampleFormat::Int16;
break;
}
break;
case Encoding::ulaw:
switch (bits)
{
case 16:
result = SampleFormat::Int16;
break;
}
break;
case Encoding::Unsigned:
switch (bits)
{
case 8:
result = SampleFormat::Unsigned8;
break;
}
break;
}
return result;
}
};
struct Traits
{
mpt::PathString fileExtension;
mpt::ustring fileShortDescription;
mpt::ustring encoderSettingsName;
mpt::ustring fileDescription;
bool canTags = false;
std::vector<mpt::ustring> genres;
int modesWithFixedGenres = 0;
bool canCues = false;
int maxChannels = 0;
std::vector<uint32> samplerates;
int modes = Encoder::ModeInvalid;
std::vector<int> bitrates;
std::vector<Format> formats;
uint32 defaultSamplerate = 48000;
uint16 defaultChannels = 2;
Encoder::Mode defaultMode = Encoder::ModeInvalid;
int defaultBitrate = 0;
float defaultQuality = 0.0f;
Format defaultFormat = { Encoder::Format::Encoding::Float, 32, mpt::endian::little };
int defaultDitherType = 1;
};
struct StreamSettings
{
int32 FLACCompressionLevel = 5; // 8
uint32 AUPaddingAlignHint = 4096;
uint32 MP3ID3v2MinPadding = 1024;
uint32 MP3ID3v2PaddingAlignHint = 4096;
bool MP3ID3v2WriteReplayGainTXXX = true;
int32 MP3LameQuality = 3; // 0
bool MP3LameID3v2UseLame = false;
bool MP3LameCalculateReplayGain = true;
bool MP3LameCalculatePeakSample = true;
int32 OpusComplexity = -1; // 10
};
struct Settings
{
bool Cues;
bool Tags;
uint32 Samplerate;
uint16 Channels;
Encoder::Mode Mode;
int Bitrate;
float Quality;
Encoder::Format Format;
int Dither;
StreamSettings Details;
};
} // namespace Encoder
class IAudioStreamEncoder
{
protected:
IAudioStreamEncoder() { }
public:
virtual ~IAudioStreamEncoder() = default;
public:
virtual SampleFormat GetSampleFormat() const = 0;
virtual void WriteInterleaved(std::size_t frameCount, const double *interleaved) = 0;
virtual void WriteInterleaved(std::size_t frameCount, const float *interleaved) = 0;
virtual void WriteInterleaved(std::size_t frameCount, const int32 *interleaved) = 0;
virtual void WriteInterleaved(std::size_t frameCount, const int24 *interleaved) = 0;
virtual void WriteInterleaved(std::size_t frameCount, const int16 *interleaved) = 0;
virtual void WriteInterleaved(std::size_t frameCount, const int8 *interleaved) = 0;
virtual void WriteInterleaved(std::size_t frameCount, const uint8 *interleaved) = 0;
virtual void WriteCues(const std::vector<uint64> &cues) = 0; // optional
virtual void WriteFinalize() = 0;
};
std::pair<bool, std::size_t> WriteInterleavedLE(std::ostream &f, uint16 channels, Encoder::Format format, std::size_t frameCount, const double *interleaved);
std::pair<bool, std::size_t> WriteInterleavedLE(std::ostream &f, uint16 channels, Encoder::Format format, std::size_t frameCount, const float *interleaved);
std::pair<bool, std::size_t> WriteInterleavedLE(std::ostream &f, uint16 channels, Encoder::Format format, std::size_t frameCount, const int32 *interleaved);
std::pair<bool, std::size_t> WriteInterleavedLE(std::ostream &f, uint16 channels, Encoder::Format format, std::size_t frameCount, const int24 *interleaved);
std::pair<bool, std::size_t> WriteInterleavedLE(std::ostream &f, uint16 channels, Encoder::Format format, std::size_t frameCount, const int16 *interleaved);
std::pair<bool, std::size_t> WriteInterleavedLE(std::ostream &f, uint16 channels, Encoder::Format format, std::size_t frameCount, const int8 *interleaved);
std::pair<bool, std::size_t> WriteInterleavedLE(std::ostream &f, uint16 channels, Encoder::Format format, std::size_t frameCount, const uint8 *interleaved);
std::pair<bool, std::size_t> WriteInterleavedBE(std::ostream &f, uint16 channels, Encoder::Format format, std::size_t frameCount, const double *interleaved);
std::pair<bool, std::size_t> WriteInterleavedBE(std::ostream &f, uint16 channels, Encoder::Format format, std::size_t frameCount, const float *interleaved);
std::pair<bool, std::size_t> WriteInterleavedBE(std::ostream &f, uint16 channels, Encoder::Format format, std::size_t frameCount, const int32 *interleaved);
std::pair<bool, std::size_t> WriteInterleavedBE(std::ostream &f, uint16 channels, Encoder::Format format, std::size_t frameCount, const int24 *interleaved);
std::pair<bool, std::size_t> WriteInterleavedBE(std::ostream &f, uint16 channels, Encoder::Format format, std::size_t frameCount, const int16 *interleaved);
std::pair<bool, std::size_t> WriteInterleavedBE(std::ostream &f, uint16 channels, Encoder::Format format, std::size_t frameCount, const int8 *interleaved);
std::pair<bool, std::size_t> WriteInterleavedBE(std::ostream &f, uint16 channels, Encoder::Format format, std::size_t frameCount, const uint8 *interleaved);
class StreamWriterBase
: public IAudioStreamEncoder
{
protected:
std::ostream &f;
std::streampos fStart;
std::vector<char> buf;
public:
StreamWriterBase(std::ostream &stream);
virtual ~StreamWriterBase();
public:
SampleFormat GetSampleFormat() const override;
void WriteInterleaved(std::size_t frameCount, const double *interleaved) override;
void WriteInterleaved(std::size_t frameCount, const float *interleaved) override;
void WriteInterleaved(std::size_t frameCount, const int32 *interleaved) override;
void WriteInterleaved(std::size_t frameCount, const int24 *interleaved) override;
void WriteInterleaved(std::size_t frameCount, const int16 *interleaved) override;
void WriteInterleaved(std::size_t frameCount, const int8 *interleaved) override;
void WriteInterleaved(std::size_t frameCount, const uint8 *interleaved) override;
void WriteCues(const std::vector<uint64> &cues) override;
void WriteFinalize() override;
protected:
void WriteBuffer();
};
class EncoderFactoryBase
{
private:
Encoder::Traits m_Traits;
protected:
EncoderFactoryBase() { }
virtual ~EncoderFactoryBase() = default;
void SetTraits(const Encoder::Traits &traits);
public:
virtual std::unique_ptr<IAudioStreamEncoder> ConstructStreamEncoder(std::ostream &file, const Encoder::Settings &settings, const FileTags &tags) const = 0;
const Encoder::Traits &GetTraits() const
{
return m_Traits;
}
virtual bool IsBitrateSupported(int samplerate, int channels, int bitrate) const;
virtual mpt::ustring DescribeQuality(float quality) const;
virtual mpt::ustring DescribeBitrateVBR(int bitrate) const;
virtual mpt::ustring DescribeBitrateABR(int bitrate) const;
virtual mpt::ustring DescribeBitrateCBR(int bitrate) const;
virtual bool IsAvailable() const = 0;
};
OPENMPT_NAMESPACE_END
|
