ebiten/audio/vorbis/vorbis_test.go
2018-03-31 01:51:39 +09:00

60 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.
package vorbis_test
import (
"io/ioutil"
"testing"
"github.com/jfreymuth/oggvorbis"
"github.com/hajimehoshi/ebiten/audio"
. "github.com/hajimehoshi/ebiten/audio/vorbis"
)
func TestMono(t *testing.T) {
bs, err := ioutil.ReadFile("test_mono.ogg")
if err != nil {
t.Fatal(err)
}
c, err := audio.NewContext(44100)
if err != nil {
t.Fatal(err)
}
s, err := Decode(c, audio.BytesReadSeekCloser(bs))
if err != nil {
t.Fatal(err)
}
r, err := oggvorbis.NewReader(audio.BytesReadSeekCloser(bs))
if err != nil {
t.Fatal(err)
}
// Stream decoded by audio/vorbis.Decode() is always 16bit stereo.
got := s.Length()
// On the other hand, the original vorbis package is monoral.
// As Length() represents the number of samples,
// this needs to be doubled by 2 (= bytes in 16bits).
want := r.Length() * 2 * 2
if got != want {
t.Errorf("s.Length(): got: %d, want: %d", got, want)
}
}