ebiten/audio/vorbis/vorbis_gopherjs.go

65 lines
1.5 KiB
Go

// Copyright 2018 The Ebiten Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build js
// +build !wasm
package vorbis
import (
"io/ioutil"
"github.com/hajimehoshi/ebiten/audio"
"github.com/hajimehoshi/ebiten/audio/vorbis/internal/stb"
)
type decoderImpl struct {
samples *stb.Samples
channels int
sampleRate int
}
func (d *decoderImpl) Read(buf []float32) (int, error) {
return d.samples.Read(buf)
}
func (d *decoderImpl) Length() int64 {
return d.samples.Length()
}
func (d *decoderImpl) Channels() int {
return d.channels
}
func (d *decoderImpl) SampleRate() int {
return d.sampleRate
}
func (d *decoderImpl) SetPosition(pos int64) error {
return d.samples.SetPosition(pos)
}
func newDecoder(in audio.ReadSeekCloser) (decoder, error) {
buf, err := ioutil.ReadAll(in)
if err != nil {
return nil, err
}
samples, channels, sampleRate, err := stb.DecodeVorbis(buf)
if err != nil {
return nil, err
}
return &decoderImpl{samples, channels, sampleRate}, nil
}