429dc676b1
A large number of functions were defined with external linkage, even
though they were only used from within one file. This patch changes
their linkage to static and removes the vp8_ prefix from their names,
which should make it more obvious to the reader that the function is
contained within the current translation unit. Functions that were
not referenced were removed.
These symbols were identified by:
$ nm -A libvpx.a | sort -k3 | uniq -c -f2 | grep ' [A-Z] ' \
| sort | grep '^ *1 '
Change-Id: I59609f58ab65312012c047036ae1e0634f795779
32 lines
862 B
C
32 lines
862 B
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "vpx_scale/yv12config.h"
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#include "math.h"
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#include "vp8/common/systemdependent.h" /* for vp8_clear_system_state() */
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#define MAX_PSNR 60
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double vp8_mse2psnr(double Samples, double Peak, double Mse)
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{
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double psnr;
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if ((double)Mse > 0.0)
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psnr = 10.0 * log10(Peak * Peak * Samples / Mse);
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else
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psnr = MAX_PSNR; // Limit to prevent / 0
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if (psnr > MAX_PSNR)
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psnr = MAX_PSNR;
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return psnr;
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}
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