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3111783aa1
Prior to this commit, most .c files in modules/audio_coding/codecs/ilbc don't include their corresponding headers, nor do they order #includes as per the Google Style Guide [1]. The former is especially harmful, since in C it can silently allow the function signature to diverge from its prototype, thus causing disaster at runtime. This CL fixes both issues. In effect, this allows the common_audio and modules/audio_coding:ilbc targets to be compiled with Clang's -Wmissing-prototypes, though this CL does not add that change. [1]: https://google.github.io/styleguide/cppguide.html#Names_and_Order_of_Includes Bug: webrtc:12314 Change-Id: I8299968ed3cc86ff35d9de045072b846298043af Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/198362 Reviewed-by: Henrik Lundin <henrik.lundin@webrtc.org> Commit-Queue: Timothy Gu <timothygu@chromium.org> Cr-Commit-Position: refs/heads/master@{#32896}
56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
/*
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* Copyright (c) 2011 The WebRTC 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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/******************************************************************
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iLBC Speech Coder ANSI-C Source Code
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WebRtcIlbcfix_Smooth_odata.c
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******************************************************************/
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#include "modules/audio_coding/codecs/ilbc/smooth_out_data.h"
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#include "modules/audio_coding/codecs/ilbc/constants.h"
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#include "modules/audio_coding/codecs/ilbc/defines.h"
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#include "rtc_base/sanitizer.h"
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// An s32 + s32 -> s32 addition that's allowed to overflow. (It's still
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// undefined behavior, so not a good idea; this just makes UBSan ignore the
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// violation, so that our old code can continue to do what it's always been
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// doing.)
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static inline int32_t RTC_NO_SANITIZE("signed-integer-overflow")
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OverflowingAdd_S32_S32_To_S32(int32_t a, int32_t b) {
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return a + b;
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}
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int32_t WebRtcIlbcfix_Smooth_odata(
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int16_t *odata,
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int16_t *psseq,
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int16_t *surround,
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int16_t C)
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{
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int i;
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int16_t err;
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int32_t errs;
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for(i=0;i<80;i++) {
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odata[i]= (int16_t)((C * surround[i] + 1024) >> 11);
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}
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errs=0;
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for(i=0;i<80;i++) {
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err = (psseq[i] - odata[i]) >> 3;
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errs = OverflowingAdd_S32_S32_To_S32(errs, err * err); // errs in Q-6
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}
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return errs;
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}
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