whisper

package
v0.0.5 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Jul 26, 2024 License: Apache-2.0 Imports: 9 Imported by: 2

Documentation

Index

Constants

View Source 
const (
	SampleRate = C.WHISPER_SAMPLE_RATE                 // Expected sample rate, samples per second
	SampleBits = uint16(unsafe.Sizeof(C.float(0))) * 8 // Sample size in bits
	NumFFT     = C.WHISPER_N_FFT
	HopLength  = C.WHISPER_HOP_LENGTH
	ChunkSize  = C.WHISPER_CHUNK_SIZE
)

Variables

View Source 
var (
	ErrTokenizerFailed  = errors.New("whisper_tokenize failed")
	ErrAutoDetectFailed = errors.New("whisper_lang_auto_detect failed")
	ErrConversionFailed = errors.New("whisper_convert failed")
	ErrInvalidLanguage  = errors.New("invalid language")
)

Functions

func NewClient 

func NewClient(abspath string) *client

Create a new client with the specified root URL to the models

func Whisper_lang_max_id 

func Whisper_lang_max_id() int

Largest language id (i.e. number of available languages - 1)

func Whisper_lang_str 

func Whisper_lang_str(id int) string

Return the short string of the specified language id (e.g. 2 -> "de"), returns empty string if not found

func Whisper_log_set 

func Whisper_log_set(fn func(level LogLevel, text string))

Set logging output

Types

type Client 

type Client interface {
	Get(ctx context.Context, w io.Writer, path string) error
}

type Context 

type Context C.struct_whisper_context

func Whisper_init 

func Whisper_init(path string) *Context

Allocates all memory needed for the model and loads the model from the given file. Returns NULL on failure.

func (*Context) Whisper_free 

func (ctx *Context) Whisper_free()

Frees all memory allocated by the model.

func (*Context) Whisper_full 

func (ctx *Context) Whisper_full(
	params *Params,
	samples []float32,
	encoderBeginCallback func() bool,
	newSegmentCallback func(int),
	progressCallback func(int),
) error

Run the entire model: PCM -> log mel spectrogram -> encoder -> decoder -> text Uses the specified decoding strategy to obtain the text.

func (*Context) Whisper_full_get_segment_t0 

func (ctx *Context) Whisper_full_get_segment_t0(segment int) int64

Get the start and end time of the specified segment.

func (*Context) Whisper_full_get_segment_t1 

func (ctx *Context) Whisper_full_get_segment_t1(segment int) int64

Get the start and end time of the specified segment.

func (*Context) Whisper_full_get_segment_text 

func (ctx *Context) Whisper_full_get_segment_text(segment int) string

Get the text of the specified segment.

func (*Context) Whisper_full_get_token_data 

func (ctx *Context) Whisper_full_get_token_data(segment int, token int) TokenData

Get token data for the specified token in the specified segment. This contains probabilities, timestamps, etc.

func (*Context) Whisper_full_get_token_id 

func (ctx *Context) Whisper_full_get_token_id(segment int, token int) Token

Get the token of the specified token index in the specified segment.

func (*Context) Whisper_full_get_token_p 

func (ctx *Context) Whisper_full_get_token_p(segment int, token int) float32

Get the probability of the specified token in the specified segment.

func (*Context) Whisper_full_get_token_text 

func (ctx *Context) Whisper_full_get_token_text(segment int, token int) string

Get the token text of the specified token index in the specified segment.

func (*Context) Whisper_full_lang_id 

func (ctx *Context) Whisper_full_lang_id() int

Return the id of the autodetected language, returns -1 if not found Added to whisper.cpp in https://github.com/ggerganov/whisper.cpp/commit/a1c1583cc7cd8b75222857afc936f0638c5683d6

Examples: 

"de" -> 2
"german" -> 2

func (*Context) Whisper_full_n_segments 

func (ctx *Context) Whisper_full_n_segments() int

Number of generated text segments. A segment can be a few words, a sentence, or even a paragraph.

func (*Context) Whisper_full_n_tokens 

func (ctx *Context) Whisper_full_n_tokens(segment int) int

Get number of tokens in the specified segment.

func (*Context) Whisper_lang_id 

func (ctx *Context) Whisper_lang_id(lang string) int

Return the id of the specified language, returns -1 if not found Examples: 

"de" -> 2
"german" -> 2

type LogLevel 

type LogLevel C.enum_ggml_log_level
const (
	LogLevelDebug LogLevel = C.GGML_LOG_LEVEL_DEBUG
	LogLevelInfo  LogLevel = C.GGML_LOG_LEVEL_INFO
	LogLevelWarn  LogLevel = C.GGML_LOG_LEVEL_WARN
	LogLevelError LogLevel = C.GGML_LOG_LEVEL_ERROR
)

func (LogLevel) String 

func (v LogLevel) String() string

type Params 

type Params C.struct_whisper_full_params

func NewParams 

func NewParams(strategy SamplingStrategy) *Params

Returns new default parameters. Call Close() to free memory associated with the parameters.

func (*Params) Close 

func (p *Params) Close()

func (*Params) Language 

func (p *Params) Language() int

Get language id

func (*Params) MarshalJSON 

func (p *Params) MarshalJSON() ([]byte, error)

func (*Params) SetAudioCtx 

func (p *Params) SetAudioCtx(n int)

Set audio encoder context

func (*Params) SetDuration 

func (p *Params) SetDuration(duration_ms int)

Set audio duration to process in ms

func (*Params) SetInitialPrompt 

func (p *Params) SetInitialPrompt(prompt string)

Set initial prompt

func (*Params) SetLanguage 

func (p *Params) SetLanguage(lang int) error

Set language id

func (*Params) SetMaxSegmentLength 

func (p *Params) SetMaxSegmentLength(n int)

Set max segment length in characters

func (*Params) SetMaxTokensPerSegment 

func (p *Params) SetMaxTokensPerSegment(n int)

Set max tokens per segment (0 = no limit)

func (*Params) SetNoContext 

func (p *Params) SetNoContext(v bool)

func (*Params) SetOffset 

func (p *Params) SetOffset(offset_ms int)

Set start offset in ms

func (*Params) SetPrintProgress 

func (p *Params) SetPrintProgress(v bool)

func (*Params) SetPrintRealtime 

func (p *Params) SetPrintRealtime(v bool)

func (*Params) SetPrintSpecial 

func (p *Params) SetPrintSpecial(v bool)

func (*Params) SetPrintTimestamps 

func (p *Params) SetPrintTimestamps(v bool)

func (*Params) SetSingleSegment 

func (p *Params) SetSingleSegment(v bool)

func (*Params) SetSplitOnWord 

func (p *Params) SetSplitOnWord(v bool)

func (*Params) SetTemperature added in v0.0.3 

func (p *Params) SetTemperature(t float32)

Set temperature

func (*Params) SetThreads 

func (p *Params) SetThreads(threads int)

Set number of threads to use

func (*Params) SetTokenSumThreshold 

func (p *Params) SetTokenSumThreshold(t float32)

Set timestamp token sum probability threshold (~0.01)

func (*Params) SetTokenThreshold 

func (p *Params) SetTokenThreshold(t float32)

Set timestamp token probability threshold (~0.01)

func (*Params) SetTokenTimestamps 

func (p *Params) SetTokenTimestamps(b bool)

func (*Params) SetTranslate 

func (p *Params) SetTranslate(v bool)

func (*Params) String 

func (p *Params) String() string

func (*Params) Threads 

func (p *Params) Threads() int

Threads available

type SamplingStrategy 

type SamplingStrategy C.enum_whisper_sampling_strategy
const (
	SAMPLING_GREEDY      SamplingStrategy = C.WHISPER_SAMPLING_GREEDY      // similar to OpenAI's GreedyDecoder
	SAMPLING_BEAM_SEARCH SamplingStrategy = C.WHISPER_SAMPLING_BEAM_SEARCH // similar to OpenAI's BeamSearchDecoder
)

func (SamplingStrategy) MarshalJSON 

func (v SamplingStrategy) MarshalJSON() ([]byte, error)

func (SamplingStrategy) String 

func (v SamplingStrategy) String() string

type Token 

type Token C.whisper_token

type TokenData 

type TokenData C.struct_whisper_token_data

func (*TokenData) MarshalJSON 

func (t *TokenData) MarshalJSON() ([]byte, error)

func (TokenData) String 

func (t TokenData) String() string

Source Files

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