我正在尝试实现 AudioTrack 以在 Android 设备中检索来自 IAX 的来电音频,但一段时间后遇到异常。
private void writeBuff(short[] buf) {
try {
if (this.track == null) {
Log.w("IAX2Audio", "write() without an AudioTrack");
return;
}
int written = 0;
while (written < buf.length) {
if (this.track != null) {
int res;
res = this.track.write(buf, written, buf.length - written);
switch (res) {
case AudioTrack.ERROR_INVALID_OPERATION:
Log.e("IAX2Audio", "Invalid write()");
return;
case AudioTrack.ERROR_BAD_VALUE:
Log.e("IAX2Audio", "Bad arguments to write()");
return;
}
written += res;
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
异常发生在这里
04-27 18:26:15.865: W/System.err(12681): java.lang.IllegalStateException: Unable to retrieve AudioTrack pointer for write()
04-27 18:26:15.890: W/System.err(12681): at android.media.AudioTrack.native_write_short(Native Method)
04-27 18:26:15.895: W/System.err(12681): at android.media.AudioTrack.write(AudioTrack.java:1023)
04-27 18:26:15.900: W/System.err(12681): at org.androvoip.iax2.AndroidAudioInterface.writeBuff(AndroidAudioInterface.java:322)
04-27 18:26:15.900: W/System.err(12681): at org.androvoip.iax2.AndroidAudioInterface.playbackTime(AndroidAudioInterface.java:350)
04-27 18:26:15.905: W/System.err(12681): at org.androvoip.iax2.AndroidAudioInterface.playTick(AndroidAudioInterface.java:413)
04-27 18:26:15.905: W/System.err(12681): at org.androvoip.iax2.AndroidAudioInterface.access$2(AndroidAudioInterface.java:406)
04-27 18:26:15.910: W/System.err(12681): at org.androvoip.iax2.AndroidAudioInterface$3.run(AndroidAudioInterface.java:560)
04-27 18:26:15.910: W/System.err(12681): at java.lang.Thread.run(Thread.java:856)
这是在接收正确的音频一段时间后创建的异常,当我尝试再次启动它时出现异常res = this.track.write(buf, written, buf.length - written);
这就是我停止并发布我的曲目的方式
public void stopPlay() {
Log.d("IAX2Audio", "stopPlay()");
if (this.track == null)
return;
if (this.track != null) {
//this.track.stop();
//this.track.release();
if (this.track != null
&& this.track.getState() != AudioTrack.STATE_UNINITIALIZED) {
if (track.getPlayState() != AudioTrack.PLAYSTATE_STOPPED) {
track.stop();
track.release();
}
}
}
try {
if (this.playThread != null) {
final Thread t = this.playThread;
/* Setting this to null is the signal to the thread to exit. */
this.playThread = null;
t.join();
}
} catch (final InterruptedException e) {
e.printStackTrace();
}
}
请查找 AndroidAudioInterface.java 的更新修复解决方案。AndroidAudioInterface.java https://www.dropbox.com/s/bona9ft21g900lr/AndroidAudioInterface.java