streamaudio.html

来自「java类库详细讲解」· HTML 代码 · 共 155 行

HTML

155 行

<HTML>
<HEAD>
<META http-equiv="Content-Type" content="text/html; charset=UTF-8">
<TITLE>Playing Streaming Sampled Audio
(Java Developers Almanac Example)
</TITLE>
<META CONTENT="Patrick Chan" NAME="AUTHOR">
<META CONTENT="Code Examples from The Java Developers Almanac 1.4" NAME="DESCRIPTION">
<META CONTENT="Addison-Wesley/Patrick Chan" NAME="OWNER">
<META CONTENT="3/20/02" NAME="revision">
<STYLE TYPE="text/css">
<!--     BODY CODE  {font-family: Courier, Monospace;           font-size: 11pt}    TABLE, BODY          {font-family: Verdana, Arial, Helvetica, sans-serif;           font-size: 10pt}    PRE   {font-family: Courier, Monospace;           font-size: 10pt}    H3    {font-family: Verdana, Arial, Helvetica, sans-serif;           font-size: 11pt}    A.eglink {text-decoration: none}    A:hover.eglink {text-decoration: underline}    -->
</STYLE>
</HEAD>
<BODY>
<TABLE CELLSPACING="0" CELLPADDING="0" BORDER="0">
<TR>
<TD rowspan="3"><A HREF="/?l=ex"><IMG BORDER="0" ALIGN="BOTTOM" HSPACE="10" SRC="/egs/almanac14a.jpg"></A></TD><TD VALIGN="top"><font face="Times" size="6"><b>The Java Developers Almanac 1.4</b></font>
<br>
        Order this book from <a href="/cgi-bin/scripts/redirect.pl?l=ex&url=http://www.amazon.com/exec/obidos/ASIN/0201752808/xeo">Amazon</a>.
    </TD>
</TR>
<TR>
<TD align="right" valign="bottom">
<FORM method="get" action="/cgi-bin/search/find.pl">
<INPUT size="25" name="words" type="text"><INPUT value="Search" type="submit">
</FORM>
</TD>
</TR>
</TABLE>
<HR color="#6666cc">
<DIV ALIGN="LEFT">
<A HREF="/">Home</A>
    &gt;
    <A HREF="../index.html">List of Packages</A>
    &gt;
    <B><A HREF="../javax.sound.sampled/pkg.html">javax.sound.sampled</A></B><font color="#666666" SIZE="-2">
        &nbsp;[9 examples]
        </font>
        &gt;
        <B><A HREF="../javax.sound.sampled/pkg.html#Playing">Playing</A></B><font color="#666666" SIZE="-2">
            &nbsp;[3 examples]
            </font>
</DIV><P>
  <h3>
    e728.  
    Playing Streaming Sampled Audio</h3>


<pre>
    try {
        // From file
        AudioInputStream stream = AudioSystem.getAudioInputStream(new File(<font color="#0066ff"><i>"audiofile"</i></font>));
    
        // From URL
        stream = AudioSystem.getAudioInputStream(new URL(<font color="#0066ff"><i>"http://hostname/audiofile"</i></font>));
    
        // At present, ALAW and ULAW encodings must be converted
        // to PCM_SIGNED before it can be played
        AudioFormat format = stream.getFormat();
        if (format.getEncoding() != AudioFormat.Encoding.PCM_SIGNED) {
            format = new AudioFormat(
                    AudioFormat.Encoding.PCM_SIGNED,
                    format.getSampleRate(),
                    format.getSampleSizeInBits()*2,
                    format.getChannels(),
                    format.getFrameSize()*2,
                    format.getFrameRate(),
                    true);        // big endian
            stream = AudioSystem.getAudioInputStream(format, stream);
        }
    
        // Create line
        SourceDataLine.Info info = new DataLine.Info(
            SourceDataLine.class, stream.getFormat(),
            ((int)stream.getFrameLength()*format.getFrameSize()));
        SourceDataLine line = (SourceDataLine) AudioSystem.getLine(info);
        line.open(stream.getFormat());
        line.start();
    
        // Continuously read and play chunks of audio
        int numRead = 0;
        byte[] buf = new byte[line.getBufferSize()];
        while ((numRead = stream.read(buf, 0, buf.length)) &gt;= 0) {
            int offset = 0;
            while (offset &lt; numRead) {
                offset += line.write(buf, offset, numRead-offset);
            }
        }
        line.drain();
        line.stop();
    } catch (MalformedURLException e) {
    } catch (IOException e) {
    } catch (LineUnavailableException e) {
    } catch (UnsupportedAudioFileException e) {
    }
</pre>
<P><table width="600" CELLSPACING="0" CELLPADDING="2" BORDER="0">
<tr>
<td bgcolor="#6666cc" align="center"><font color="#ffffff">
            &nbsp;Related Examples
        </font></td>
</tr>
</table>


e727. <a class="eglink" href="Load.html?l=rel">
    Loading and Playing Sampled Audio
</a>
<br>

e729. <a class="eglink" href="ContinuousPlay.html?l=rel">
    Continuously Playing a Sampled Audio File
</a>
<br>


<table width="600" CELLSPACING="0" CELLPADDING="2" BORDER="0">
<tr>
<td align="left">
<br>
        See also: 
<a class="eglink" href="/egs/javax.sound.sampled/pkg.html?l=rel#Events">
    Events
</a>&nbsp;&nbsp;

<a class="eglink" href="/egs/javax.sound.sampled/pkg.html?l=rel#Properties">
    Properties
</a>&nbsp;&nbsp;

</td>
</tr>
</table>

<br>

<br>
<FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="0">
&copy; 2002 Addison-Wesley.
</FONT>
</BODY>
</HTML>

streamaudio.html - 源码说明

本页面展示了「java类库详细讲解」中的 streamaudio.html 源码文件，采用 HTML 编程语言编写，共 155 行代码。您可以在线阅读完整代码内容，也可以返回资源详情页下载完整源码包进行本地学习和开发。

虫虫下载站收录了大量与java相关的技术资源，包括源代码、技术文档、电路图等，是电子工程师和嵌入式开发者的专业学习平台。

⌨️ 快捷键说明

复制代码Ctrl + C

搜索代码Ctrl + F

全屏模式F11

增大字号Ctrl + =

减小字号Ctrl + -

显示快捷键?