33 lines
1016 B
C
33 lines
1016 B
C
|
/*
|
||
|
|
* 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;
|
||
|
|
}
|