/
example_test.go
105 lines (88 loc) · 1.6 KB
/
example_test.go
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// Copyright 2013 Pulse Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package pulse_test
import (
"io"
"log"
"os"
"github.com/kaey/pulse"
"github.com/kaey/wav"
)
func Example_wav() {
file, err := os.Open(os.Args[1])
if err != nil {
log.Fatalln(err)
}
defer file.Close()
rd, err := wav.NewReader(file)
if err != nil {
log.Fatalln(err)
}
defer rd.Close()
s := pulse.Sample{
Format: pulse.FormatS16le,
Rate: rd.SampleRate,
Channels: rd.Channels,
}
w, err := pulse.NewWriter(&s, "player", file.Name())
if err != nil {
log.Fatalln(err)
}
defer w.Close()
defer w.Drain()
buf := make([]byte, 2048)
for {
n, err := rd.Read(buf)
if err != nil && err != io.EOF {
log.Fatalln(err)
}
if n == 0 {
break
}
err = w.Write(buf[:n])
if err != nil {
log.Fatalln(err)
}
}
}
func Example_echo() {
s := pulse.Sample{
Format: pulse.FormatS16le,
Rate: 44100,
Channels: 2,
}
r, err := pulse.NewReader(&s, "echo", "mic")
if err != nil {
log.Fatalln(err)
}
defer r.Close()
defer r.Drain()
rl, err := r.Latency()
if err != nil {
log.Fatalln(err)
}
w, err := pulse.NewWriter(&s, "echo", "play")
if err != nil {
log.Fatalln(err)
}
defer w.Close()
defer w.Drain()
wl, err := w.Latency()
if err != nil {
log.Fatalln(err)
}
log.Println("Reader latency", rl)
log.Println("Writer latency", wl)
buf := make([]byte, 2048)
for {
err := r.Read(buf)
if err != nil {
log.Fatalln(err)
}
err = w.Write(buf)
if err != nil {
log.Fatalln(err)
}
}
}