alexaClientSDK::speechencoder Namespace Reference

Namespaces
	test

Classes
class	EncoderContext
class	OpusEncoderContext
class	SpeechEncoder

Functions
static const std::string	TAG ("OpusEncoderContext")
	String to identify log entries originating from this file. More...
uint16_t	Reverse16 (uint16_t value)
static const std::string	TAG ("SpeechEncoder")
	String to identify log entries originating from this file. More...

Variables
static constexpr char	AVS_FORMAT [] = "OPUS"
	AVS OPUS format name. More...
static constexpr unsigned int	SAMPLE_RATE = 16000
	Audio sample rate: 16kHz. More...
static constexpr unsigned int	BIT_RATE = 32000
	OPUS bitrate: 32kbps CBR. More...
static constexpr unsigned int	FRAME_LENGTH = 20
	OPUS frame length: 20ms. More...
static constexpr unsigned int	FRAME_SIZE = (SAMPLE_RATE / 1000) * FRAME_LENGTH
	PCM frame size. More...
static constexpr unsigned int	PACKET_SIZE = ((BIT_RATE / CHAR_BIT) / 1000) * FRAME_LENGTH
	OPUS packet size (CBR) More...
static constexpr unsigned int	MAX_PACKET_SIZE = PACKET_SIZE * 2
	Maximum packet size. More...
static constexpr unsigned int	MAX_READERS = 10
	The maximum number of readers of the output stream. More...
static constexpr unsigned int	READ_TIMEOUT_MS = 10
	Reading timeout from input audio stream. More...
static const auto	WRITE_TIMEOUT_MS = std::chrono::milliseconds(100)
	Timeout between write retrying. More...
static constexpr unsigned int	MAX_OUTPUT_PACKETS = 20
	The maximum number of packets to be buffered to the output stream. More...

Function Documentation

Reverse16()

uint16_t alexaClientSDK::speechencoder::Reverse16 ( uint16_t  value )

inline

TAG() [1/2]

static const std::string alexaClientSDK::speechencoder::TAG ( "OpusEncoderContext"  )

static

String to identify log entries originating from this file.

TAG() [2/2]

static const std::string alexaClientSDK::speechencoder::TAG ( "SpeechEncoder"  )

static

String to identify log entries originating from this file.

Variable Documentation

AVS_FORMAT

constexpr char alexaClientSDK::speechencoder::AVS_FORMAT[] = "OPUS"

staticconstexpr

AVS OPUS format name.

BIT_RATE

constexpr unsigned int alexaClientSDK::speechencoder::BIT_RATE = 32000

staticconstexpr

OPUS bitrate: 32kbps CBR.

FRAME_LENGTH

constexpr unsigned int alexaClientSDK::speechencoder::FRAME_LENGTH = 20

staticconstexpr

OPUS frame length: 20ms.

FRAME_SIZE

constexpr unsigned int alexaClientSDK::speechencoder::FRAME_SIZE = (SAMPLE_RATE / 1000) * FRAME_LENGTH

staticconstexpr

PCM frame size.

MAX_OUTPUT_PACKETS

constexpr unsigned int alexaClientSDK::speechencoder::MAX_OUTPUT_PACKETS = 20

staticconstexpr

The maximum number of packets to be buffered to the output stream.

MAX_PACKET_SIZE

constexpr unsigned int alexaClientSDK::speechencoder::MAX_PACKET_SIZE = PACKET_SIZE * 2

staticconstexpr

Maximum packet size.

MAX_READERS

constexpr unsigned int alexaClientSDK::speechencoder::MAX_READERS = 10

staticconstexpr

The maximum number of readers of the output stream.

PACKET_SIZE

constexpr unsigned int alexaClientSDK::speechencoder::PACKET_SIZE = ((BIT_RATE / CHAR_BIT) / 1000) * FRAME_LENGTH

staticconstexpr

OPUS packet size (CBR)

READ_TIMEOUT_MS

constexpr unsigned int alexaClientSDK::speechencoder::READ_TIMEOUT_MS = 10

staticconstexpr

Reading timeout from input audio stream.

SAMPLE_RATE

constexpr unsigned int alexaClientSDK::speechencoder::SAMPLE_RATE = 16000

staticconstexpr

Audio sample rate: 16kHz.

WRITE_TIMEOUT_MS

const auto alexaClientSDK::speechencoder::WRITE_TIMEOUT_MS = std::chrono::milliseconds(100)

static

Timeout between write retrying.