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Added V18 release notes.

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philburk 2002-05-06 17:18:27 +00:00
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<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="GENERATOR" content="Mozilla/4.77 [en]C-gatewaynet (Win98; U) [Netscape]">
<meta name="GENERATOR" content="Mozilla/4.79 [en] (Windows NT 5.0; U) [Netscape]">
<meta name="Author" content="Phil Burk">
<meta name="Description" content="PortAudio is a cross platform, open-source, audio I/O library.It provides a very simple API for recording and/or playing sound using a simple callback function.">
<meta name="KeyWords" content="audio, library, portable, open-source, DirectSound,sound, music, JSyn, synthesis,">
<title>PortAudio Implementations for DirectSound</title>
<title>PortAudio Release Notes</title>
</head>
<body>
&nbsp;
@ -22,25 +22,112 @@ PortAudio - Release Notes</h1></center>
<p>Link to <a href="http://www.portaudio.com">PortAudio Home Page</a>
<h2>
<b>V18 - unreleased</b></h2>
<b>V18 - 5/6/02</b></h2>
<blockquote>Ran most of the code through <a href="http://astyle.sourceforge.net/">AStyle</a>
<blockquote>All source code and documentation now under <a href="http://www.portaudio.com/usingcvs.html">CVS</a>.
<p>Ran most of the code through <a href="http://astyle.sourceforge.net/">AStyle</a>
to cleanup ragged indentation caused by using different editors. Used this
command:
<br><tt>astyle --style=ansi -c -o --convert-tabs --indent-preprocessor
<br><tt>&nbsp;&nbsp; astyle --style=ansi -c -o --convert-tabs --indent-preprocessor
*.c</tt></blockquote>
<blockquote><b>WMME</b>
<blockquote>Added "pa_common/pa_convert.c" for Mac OS X. Start of new conversion
utilities.
<p><b>ASIO</b>
<ul>
<li>
New Pa_ASIO_Adaptor_Init function to init Callback adpatation variables,</li>
<li>
Cleanup of Pa_ASIO_Callback_Input</li>
<li>
Break apart device loading to debug random failure in Pa_ASIO_QueryDeviceInfo</li>
<li>
Deallocate all resources in PaHost_Term for cases where Pa_CloseStream
is not called properly</li>
<li>
New Pa_ASIO_loadDriver that calls CoInitialize on each thread on Windows.
Allows use by multiple threads.</li>
<li>
Correct error code management in PaHost_Term, removed various compiler
warning</li>
<li>
Add Mac includes for &lt;Devices.h> and &lt;Timer.h></li>
<li>
Pa_ASIO_QueryDeviceInfo bug correction, memory allocation checking, better
error handling</li>
</ul>
<b>Mac OS X</b>
<ul>
<li>
Major cleanup and improvements.</li>
<li>
Fixed device queries for numChannels and sampleRates,</li>
<li>
Audio input works if using same CoreAudio device (some HW devices make
separate CoreAudio devices).</li>
<li>
Added paInt16, paInt8, format using new "pa_common/pa_convert.c" file.</li>
<li>
Return error if opened in mono mode cuz not supported.</li>
<li>
Check for getenv("PA_MIN_LATEWNCY_MSEC") to set latency externally.</li>
<li>
Use getrusage() instead of gettimeofday() for CPU Load calculation.</li>
</ul>
<b>Windows MME</b>
<ul>
<li>
Fixed bug that caused TIMEOUT in Pa_StopStream(). Added check for past_StopSoon()
in Pa_TimeSlice(). Thanks Julien Maillard.</li>
<li>
Detect Win XP versus NT, use lower latency.</li>
<li>
Fix DBUG typo;</li>
<li>
removed init of CurrentCount which was not compiling on Borland</li>
<li>
general cleanup, factored streamData alloc and cpu usage initialization</li>
<li>
stopped counting WAVE_MAPPER when there were no audio cards plugged in</li>
</ul>
<b>Windows DirectSound</b>
<ul>
<li>
Detect Win XP and Win 2K properly when determining latency.</li>
</ul>
<b>Unix OSS</b>
<ul>
<li>
Use high real-time priority if app is running with root priveledges. Lowers
latency.</li>
<li>
Added watch dog thread that prevents real-time thread from hogging CPU
and hanging the computer.</li>
<li>
Check error return from read() and write().</li>
<li>
Check CPU endianness instead of assuming Little Endian.</li>
</ul>
</blockquote>