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audio/mp3: Force context switch when decoding

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This commit is contained in:
Hajime Hoshi 2017-12-24 03:13:14 +09:00
parent 18c6890d96
commit 7b1f501bd7
1 changed files with 7 additions and 2 deletions
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9
audio/mp3/decode_js.go
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@ -21,6 +21,7 @@ import (
"fmt" "fmt"
"io" "io"
"io/ioutil" "io/ioutil"
"runtime"
"github.com/gopherjs/gopherjs/js" "github.com/gopherjs/gopherjs/js"
"github.com/hajimehoshi/ebiten/audio" "github.com/hajimehoshi/ebiten/audio"
@ -96,7 +97,7 @@ func (s *Stream) Size() int64 {
// seekNextFrame also returns true when seeking is successful, or false otherwise. // seekNextFrame also returns true when seeking is successful, or false otherwise.
// //
// Seeking is necessary when decoding fails. Safari's MP3 decoder can't treat IDs well (#438). // Seeking is necessary when decoding fails. Safari's MP3 decoder can't treat IDs well (#438).
func seekNextFrame(buf []uint8) ([]uint8, bool) { func seekNextFrame(buf []byte) ([]byte, bool) {
// TODO: Need to skip tags explicitly? (hajimehoshi/go-mp3#9) // TODO: Need to skip tags explicitly? (hajimehoshi/go-mp3#9)
if len(buf) < 1 { if len(buf) < 1 {
@ -156,7 +157,7 @@ func init() {
} }
} }
func decode(context *audio.Context, buf []uint8) (*Stream, error) { func decode(context *audio.Context, buf []byte) (*Stream, error) {
if offlineAudioContextClass == nil { if offlineAudioContextClass == nil {
return nil, errors.New("audio/mp3: OfflineAudioContext is not available") return nil, errors.New("audio/mp3: OfflineAudioContext is not available")
} }
@ -191,6 +192,10 @@ func decode(context *audio.Context, buf []uint8) (*Stream, error) {
} }
close(ch) close(ch)
}) })
// GopherJS's bug? Without Gosched(), receiving might block forever.
runtime.Gosched()
if err := <-ch; err != nil { if err := <-ch; err != nil {
return nil, err return nil, err
} }