File: pcm16b.c

package info (click to toggle)
chromium 140.0.7339.127-1~deb13u1
  • links: PTS, VCS
  • area: main
  • in suites: trixie-proposed-updates
  • size: 6,193,184 kB
  • sloc: cpp: 35,093,808; ansic: 7,161,670; javascript: 4,199,694; python: 1,441,797; asm: 949,904; xml: 747,503; pascal: 187,748; perl: 88,691; sh: 88,248; objc: 79,953; sql: 52,714; cs: 44,599; fortran: 24,137; makefile: 22,114; tcl: 15,277; php: 13,980; yacc: 9,000; ruby: 7,485; awk: 3,720; lisp: 3,096; lex: 1,327; ada: 727; jsp: 228; sed: 36
file content (32 lines) | stat: -rw-r--r-- 1,016 bytes parent folder | download | duplicates (41) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
 
/*
 *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#include "modules/audio_coding/codecs/pcm16b/pcm16b.h"

size_t WebRtcPcm16b_Encode(const int16_t* speech,
                           size_t len,
                           uint8_t* encoded) {
  size_t i;
  for (i = 0; i < len; ++i) {
    uint16_t s = speech[i];
    encoded[2 * i] = s >> 8;
    encoded[2 * i + 1] = s;
  }
  return 2 * len;
}

size_t WebRtcPcm16b_Decode(const uint8_t* encoded,
                           size_t len,
                           int16_t* speech) {
  size_t i;
  for (i = 0; i < len / 2; ++i)
    speech[i] = encoded[2 * i] << 8 | encoded[2 * i + 1];
  return len / 2;
}