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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/162944">162944</a></dd>
<dt>Author</dt> <dd>jer.noble@apple.com</dd>
<dt>Date</dt> <dd>2014-01-28 10:22:07 -0800 (Tue, 28 Jan 2014)</dd>
</dl>

<h3>Log Message</h3>
<pre>[Mac] Use explicit, rather than canonical, AudioFormatFlags and types.
https://bugs.webkit.org/show_bug.cgi?id=127781

Reviewed by Eric Carlson.

Since every mac platform uses Float32 audio samples, use these types explicitly
rather than the implicit, canonical AudioSampleType type. Once we're using Float32
explicity, we can also use the explicit kAudioFormatFlagsNativeFloatPacked flag
rather than the canonical version.

* platform/audio/mac/AudioDestinationMac.cpp:
(WebCore::AudioDestinationMac::configure):
* platform/audio/mac/AudioFileReaderMac.cpp:
(WebCore::AudioFileReader::createBus):</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoreplatformaudiomacAudioDestinationMaccpp">trunk/Source/WebCore/platform/audio/mac/AudioDestinationMac.cpp</a></li>
<li><a href="#trunkSourceWebCoreplatformaudiomacAudioFileReaderMaccpp">trunk/Source/WebCore/platform/audio/mac/AudioFileReaderMac.cpp</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (162943 => 162944)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog        2014-01-28 18:18:47 UTC (rev 162943)
+++ trunk/Source/WebCore/ChangeLog        2014-01-28 18:22:07 UTC (rev 162944)
</span><span class="lines">@@ -1,3 +1,20 @@
</span><ins>+2014-01-28  Jer Noble  &lt;jer.noble@apple.com&gt;
+
+        [Mac] Use explicit, rather than canonical, AudioFormatFlags and types.
+        https://bugs.webkit.org/show_bug.cgi?id=127781
+
+        Reviewed by Eric Carlson.
+
+        Since every mac platform uses Float32 audio samples, use these types explicitly
+        rather than the implicit, canonical AudioSampleType type. Once we're using Float32
+        explicity, we can also use the explicit kAudioFormatFlagsNativeFloatPacked flag
+        rather than the canonical version.
+
+        * platform/audio/mac/AudioDestinationMac.cpp:
+        (WebCore::AudioDestinationMac::configure):
+        * platform/audio/mac/AudioFileReaderMac.cpp:
+        (WebCore::AudioFileReader::createBus):
+
</ins><span class="cx"> 2014-01-27  Alexey Proskuryakov  &lt;ap@apple.com&gt;
</span><span class="cx"> 
</span><span class="cx">         Expose SQL database creation and modification times
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformaudiomacAudioDestinationMaccpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/audio/mac/AudioDestinationMac.cpp (162943 => 162944)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/audio/mac/AudioDestinationMac.cpp        2014-01-28 18:18:47 UTC (rev 162943)
+++ trunk/Source/WebCore/platform/audio/mac/AudioDestinationMac.cpp        2014-01-28 18:22:07 UTC (rev 162944)
</span><span class="lines">@@ -124,19 +124,16 @@
</span><span class="cx">     OSStatus result = AudioUnitSetProperty(m_outputUnit, kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Global, 0, &amp;input, sizeof(input));
</span><span class="cx">     ASSERT(!result);
</span><span class="cx"> 
</span><del>-#pragma clang diagnostic push
-#pragma clang diagnostic ignored &quot;-Wdeprecated-declarations&quot;
</del><span class="cx">     // Set stream format
</span><span class="cx">     AudioStreamBasicDescription streamFormat;
</span><span class="cx">     streamFormat.mSampleRate = m_sampleRate;
</span><span class="cx">     streamFormat.mFormatID = kAudioFormatLinearPCM;
</span><del>-    streamFormat.mFormatFlags = kAudioFormatFlagsCanonical | kAudioFormatFlagIsNonInterleaved;
-    streamFormat.mBitsPerChannel = 8 * sizeof(AudioSampleType);
</del><ins>+    streamFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked | kAudioFormatFlagIsNonInterleaved;
+    streamFormat.mBitsPerChannel = 8 * sizeof(Float32);
</ins><span class="cx">     streamFormat.mChannelsPerFrame = 2;
</span><span class="cx">     streamFormat.mFramesPerPacket = 1;
</span><del>-    streamFormat.mBytesPerPacket = sizeof(AudioSampleType);
-    streamFormat.mBytesPerFrame = sizeof(AudioSampleType);
-#pragma clang diagnostic pop
</del><ins>+    streamFormat.mBytesPerPacket = sizeof(Float32);
+    streamFormat.mBytesPerFrame = sizeof(Float32);
</ins><span class="cx"> 
</span><span class="cx">     result = AudioUnitSetProperty(m_outputUnit, kAudioUnitProperty_StreamFormat, kAudioUnitScope_Input, 0, (void*)&amp;streamFormat, sizeof(AudioStreamBasicDescription));
</span><span class="cx">     ASSERT(!result);
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformaudiomacAudioFileReaderMaccpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/audio/mac/AudioFileReaderMac.cpp (162943 => 162944)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/audio/mac/AudioFileReaderMac.cpp        2014-01-28 18:18:47 UTC (rev 162943)
+++ trunk/Source/WebCore/platform/audio/mac/AudioFileReaderMac.cpp        2014-01-28 18:22:07 UTC (rev 162944)
</span><span class="lines">@@ -157,17 +157,14 @@
</span><span class="cx">     // Client format will be linear PCM (canonical), and potentially change sample-rate.
</span><span class="cx">     m_clientDataFormat = m_fileDataFormat;
</span><span class="cx"> 
</span><del>-#pragma clang diagnostic push
-#pragma clang diagnostic ignored &quot;-Wdeprecated-declarations&quot;
</del><span class="cx">     m_clientDataFormat.mFormatID = kAudioFormatLinearPCM;
</span><del>-    m_clientDataFormat.mFormatFlags = kAudioFormatFlagsCanonical;
-    m_clientDataFormat.mBitsPerChannel = 8 * sizeof(AudioSampleType);
</del><ins>+    m_clientDataFormat.mFormatFlags = kAudioFormatFlagsNativeFloatPacked;
+    m_clientDataFormat.mBitsPerChannel = 8 * sizeof(Float32);
</ins><span class="cx">     m_clientDataFormat.mChannelsPerFrame = numberOfChannels;
</span><span class="cx">     m_clientDataFormat.mFramesPerPacket = 1;
</span><del>-    m_clientDataFormat.mBytesPerPacket = sizeof(AudioSampleType);
-    m_clientDataFormat.mBytesPerFrame = sizeof(AudioSampleType);
</del><ins>+    m_clientDataFormat.mBytesPerPacket = sizeof(Float32);
+    m_clientDataFormat.mBytesPerFrame = sizeof(Float32);
</ins><span class="cx">     m_clientDataFormat.mFormatFlags |= kAudioFormatFlagIsNonInterleaved;
</span><del>-#pragma clang diagnostic pop
</del><span class="cx"> 
</span><span class="cx">     if (sampleRate)
</span><span class="cx">         m_clientDataFormat.mSampleRate = sampleRate;
</span></span></pre>
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