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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}
62 lines
2.1 KiB
C
62 lines
2.1 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_SimpleLsfDeQ.c
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******************************************************************/
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#include "modules/audio_coding/codecs/ilbc/simple_lsf_dequant.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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/*----------------------------------------------------------------*
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* obtain dequantized lsf coefficients from quantization index
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*---------------------------------------------------------------*/
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void WebRtcIlbcfix_SimpleLsfDeQ(
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int16_t *lsfdeq, /* (o) dequantized lsf coefficients */
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int16_t *index, /* (i) quantization index */
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int16_t lpc_n /* (i) number of LPCs */
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){
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int i, j, pos, cb_pos;
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/* decode first LSF */
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pos = 0;
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cb_pos = 0;
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for (i = 0; i < LSF_NSPLIT; i++) {
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for (j = 0; j < WebRtcIlbcfix_kLsfDimCb[i]; j++) {
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lsfdeq[pos + j] = WebRtcIlbcfix_kLsfCb[cb_pos + j + index[i] *
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WebRtcIlbcfix_kLsfDimCb[i]];
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}
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pos += WebRtcIlbcfix_kLsfDimCb[i];
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cb_pos += WebRtcIlbcfix_kLsfSizeCb[i] * WebRtcIlbcfix_kLsfDimCb[i];
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}
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if (lpc_n>1) {
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/* decode last LSF */
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pos = 0;
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cb_pos = 0;
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for (i = 0; i < LSF_NSPLIT; i++) {
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for (j = 0; j < WebRtcIlbcfix_kLsfDimCb[i]; j++) {
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lsfdeq[LPC_FILTERORDER + pos + j] = WebRtcIlbcfix_kLsfCb[
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cb_pos + index[LSF_NSPLIT + i] * WebRtcIlbcfix_kLsfDimCb[i] + j];
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}
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pos += WebRtcIlbcfix_kLsfDimCb[i];
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cb_pos += WebRtcIlbcfix_kLsfSizeCb[i] * WebRtcIlbcfix_kLsfDimCb[i];
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}
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}
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return;
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}
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