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21 lines
1.0 KiB
C
21 lines
1.0 KiB
C
/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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// determine the new buffer size for downsampling
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AZStd::size_t GetDownsampleSize(AZStd::size_t sourceSize, AZ::u32 sourceSampleRate, AZ::u32 targetSampleRate);
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// down sample a 16 bit audio buffer from on sample rate frequency to another lower sample rate frequency
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// outBuffer must already be allocated and large enough to hold the downsampled result
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void Downsample(AZ::s16* inBuffer, AZStd::size_t inBufferSize, AZ::u32 inBufferSampleRate,
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AZ::s16* outBuffer, AZStd::size_t outBufferSize, AZ::u32 outBufferSampleRate);
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