wav

Documentation

Overview

Package wav provides WAV (RIFF) decoder.

Index

• type Stream
  • func Decode(src convert.ReadSeekCloser, sr int) (*Stream, error)
  • func (s *Stream) Close() error
  • func (s *Stream) Length() int64
  • func (s *Stream) Read(p []byte) (int, error)
  • func (s *Stream) Seek(offset int64, whence int) (int64, error)
  • func (s *Stream) Size() int64

Types

type Stream

type Stream struct {
	// contains filtered or unexported fields
}

Stream is a decoded audio stream.

func Decode

func Decode(src convert.ReadSeekCloser, sr int) (*Stream, error)

Decode decodes WAV (RIFF) data to playable stream.

The format must be 1 or 2 channels, 8bit or 16bit little endian PCM. The format is converted into 2 channels and 16bit.

Decode returns error when decoding fails or IO error happens.

Decode automatically resamples the stream to fit with the audio context if necessary.

func (*Stream) Close

func (s *Stream) Close() error

Close is implementation of io.Closer's Close.

func (*Stream) Length

func (s *Stream) Length() int64

Length returns the size of decoded stream in bytes.

func (*Stream) Read

func (s *Stream) Read(p []byte) (int, error)

Read is implementation of io.Reader's Read.

func (*Stream) Seek

func (s *Stream) Seek(offset int64, whence int) (int64, error)

Seek is implementation of io.Seeker's Seek.

Note that Seek can take long since decoding is a relatively heavy task.

func (*Stream) Size

func (s *Stream) Size() int64

Size is deprecated as of version 1.6.0-alpha. Use Length instead.