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audio: Bug fix: stream size must be multiple of 4 (#384)

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This commit is contained in:
Hajime Hoshi 2017-07-12 00:51:36 +09:00
parent e0c7b8c492
commit 5d99993183
3 changed files with 8 additions and 5 deletions
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3
audio/internal/convert/resampling.go
View File

@ -52,7 +52,8 @@ func NewResampling(source audio.ReadSeekCloser, size int64, from, to int) *Resam
} }
func (r *Resampling) Size() int64 { func (r *Resampling) Size() int64 {
return int64(float64(r.size) * float64(r.to) / float64(r.from)) s := int64(float64(r.size) * float64(r.to) / float64(r.from))
return s / 4 * 4
} }
func (r *Resampling) src(i int) (float64, float64, error) { func (r *Resampling) src(i int) (float64, float64, error) {

5
audio/vorbis/vorbis.go
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@ -188,8 +188,9 @@ func Decode(context *audio.Context, src audio.ReadSeekCloser) (*Stream, error) {
size *= 2 size *= 2
} }
if sampleRate != context.SampleRate() { if sampleRate != context.SampleRate() {
s = convert.NewResampling(s, size, sampleRate, context.SampleRate()) r := convert.NewResampling(s, size, sampleRate, context.SampleRate())
size = size * int64(context.SampleRate()) / int64(sampleRate) s = r
size = r.Size()
} }
return &Stream{decoded: s, size: size}, nil return &Stream{decoded: s, size: size}, nil
} }

5
audio/wav/decode.go
View File

@ -219,8 +219,9 @@ chunks:
} }
} }
if sampleRateFrom != sampleRateTo { if sampleRateFrom != sampleRateTo {
s = convert.NewResampling(s, dataSize, sampleRateFrom, sampleRateTo) r := convert.NewResampling(s, dataSize, sampleRateFrom, sampleRateTo)
dataSize = dataSize * int64(sampleRateTo) / int64(sampleRateFrom) s = r
dataSize = r.Size()
} }
return &Stream{inner: s, size: dataSize}, nil return &Stream{inner: s, size: dataSize}, nil
} }