英文:
Java AudioSystem.getAudioFileTypes() returns empty array in android
问题
以下是您要翻译的代码部分：
private final int BUFFER_SIZE = 128000;
private File soundFile;
private AudioInputStream audioStream;
private AudioFormat audioFormat;
private SourceDataLine sourceLine;
public void playSound(){
AudioFileFormat.Type[] types=AudioSystem.getAudioFileTypes();
System.out.println("supported formats: ");
for(AudioFileFormat.Type t1: types){
System.out.println(t1.getExtension());
}
try {
audioStream = AudioSystem.getAudioInputStream(Thread.currentThread().getContextClassLoader().getResource("res/raw/" + "tobu_wav" + ".wav"));
audioFormat = audioStream.getFormat();
DataLine.Info info = new DataLine.Info(SourceDataLine.class, audioFormat);
try {
sourceLine = (SourceDataLine) AudioSystem.getLine(info);
sourceLine.open(audioFormat);
} catch (LineUnavailableException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
sourceLine.start();
int nBytesRead = 0;
byte[] abData = new byte[BUFFER_SIZE];
while (nBytesRead != -1) {
try {
nBytesRead = audioStream.read(abData, 0, abData.length);
} catch (IOException e) {
e.printStackTrace();
}
if (nBytesRead >= 0) {
@SuppressWarnings("unused")
int nBytesWritten = sourceLine.write(abData, 0, nBytesRead);
}
}
sourceLine.drain();
sourceLine.close();
} catch (Exception e){
e.printStackTrace();
}
}
请注意，我已将双引号 " 替换为正常的双引号 "。这是因为在代码中，" 被用作双引号的转义序列。如果您在实际代码中使用双引号，不需要进行替换。
英文:
The goal: Play wav sound with the help of AudioinputStream and AudioSystem in Java on android
private final int BUFFER_SIZE = 128000;
private File soundFile;
private AudioInputStream audioStream;
private AudioFormat audioFormat;
private SourceDataLine sourceLine;
public void playSound(){
AudioFileFormat.Type[] types=AudioSystem.getAudioFileTypes();
System.out.println("supported formats: ");
for(AudioFileFormat.Type t1: types){
System.out.println(t1.getExtension());
}
try {
audioStream = AudioSystem.getAudioInputStream(Thread.currentThread().getContextClassLoader().getResource("res/raw/" + "tobu_wav" + ".wav"));
audioFormat = audioStream.getFormat();
DataLine.Info info = new DataLine.Info(SourceDataLine.class, audioFormat);
try {
sourceLine = (SourceDataLine) AudioSystem.getLine(info);
sourceLine.open(audioFormat);
} catch (LineUnavailableException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
sourceLine.start();
int nBytesRead = 0;
byte[] abData = new byte[BUFFER_SIZE];
while (nBytesRead != -1) {
try {
nBytesRead = audioStream.read(abData, 0, abData.length);
} catch (IOException e) {
e.printStackTrace();
}
if (nBytesRead >= 0) {
@SuppressWarnings("unused")
int nBytesWritten = sourceLine.write(abData, 0, nBytesRead);
}
}
sourceLine.drain();
sourceLine.close();
} catch (Exception e){
e.printStackTrace();
}
}
The code works fine.
The probem is after this line:
System.out.println("supported formats: ");
Android: types={}
PC (Windows): types={"wav,"au","aif"}
Why? - How can I add these supported File types to work on android as well?
答案1
得分: 0
我明白了。
AudioTrack 是 Android 设备上的解决方案。
英文:
I figured out.
AudioTrack is the solution on Android devices.
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论