待机功能基本实现

pkg/audio/bgm.go

@@ -0,0 +1,31 @@
+package audio
+
+import (
+	"github.com/gopxl/beep/v2"
+	"github.com/gopxl/beep/v2/mp3"
+	"github.com/gopxl/beep/v2/speaker"
+	"io"
+	"log"
+)
+
+func PlayBgmMP3(r io.ReadCloser, opts ...beep.LoopOption) (*beep.Ctrl, func() error) {
+	streamer, format, err := mp3.Decode(r)
+	if err != nil {
+		return nil, func() error { return nil }
+	}
+
+	loop2, err := beep.Loop2(streamer, opts...)
+	if err != nil {
+		log.Println("循环播放异常: ", err)
+		return nil, streamer.Close
+	}
+
+	s := beep.Resample(4, format.SampleRate, DefaultSampleRate, loop2)
+
+	ctrl := &beep.Ctrl{Streamer: s}
+	speaker.Play(beep.Seq(ctrl, beep.Callback(func() {
+		streamer.Close()
+	})))
+
+	return ctrl, streamer.Close
+}