41 lines
1.3 KiB
Diff
41 lines
1.3 KiB
Diff
From 15e31e3641e4f85475984bf4d9ebf8ae47303a8a Mon Sep 17 00:00:00 2001
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From: peak3d <pfau@peak3d.de>
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Date: Thu, 22 Jul 2021 11:07:13 +0200
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Subject: [PATCH] Add GetChannels method
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Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
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---
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Source/C++/Core/Ap4Dac3Atom.cpp | 6 ++++++
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Source/C++/Core/Ap4Dac3Atom.h | 1 +
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2 files changed, 7 insertions(+)
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diff --git a/Source/C++/Core/Ap4Dac3Atom.cpp b/Source/C++/Core/Ap4Dac3Atom.cpp
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index 80a511e..a9ea78a 100644
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--- a/Source/C++/Core/Ap4Dac3Atom.cpp
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+++ b/Source/C++/Core/Ap4Dac3Atom.cpp
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@@ -143,3 +143,9 @@ AP4_Dac3Atom::InspectFields(AP4_AtomInspector& inspector)
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inspector.AddField("lfeon", m_StreamInfo.lfeon);
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return AP4_SUCCESS;
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}
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+
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+AP4_UI08 AP4_Dac3Atom::GetChannels() const
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+{
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+ static const AP4_UI08 CC[] = { 2, 1, 2, 3, 3, 4, 4, 5 };
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+ return CC[m_StreamInfo.acmod] + m_StreamInfo.lfeon;
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+}
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diff --git a/Source/C++/Core/Ap4Dac3Atom.h b/Source/C++/Core/Ap4Dac3Atom.h
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index 2532ef2..78e2875 100644
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--- a/Source/C++/Core/Ap4Dac3Atom.h
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+++ b/Source/C++/Core/Ap4Dac3Atom.h
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@@ -73,6 +73,7 @@ public:
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const AP4_DataBuffer& GetRawBytes() const { return m_RawBytes; }
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unsigned int GetDataRate() const { return m_DataRate; }
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const StreamInfo& GetStreamInfo() const { return m_StreamInfo; }
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+ AP4_UI08 GetChannels() const;
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private:
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// methods
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--
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2.30.2
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