1/*
2 *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10
11#include "webrtc/modules/audio_coding/codecs/pcm16b/audio_encoder_pcm16b.h"
12
13#include "webrtc/base/checks.h"
14#include "webrtc/common_types.h"
15#include "webrtc/modules/audio_coding/codecs/pcm16b/pcm16b.h"
16
17namespace webrtc {
18
19size_t AudioEncoderPcm16B::EncodeCall(const int16_t* audio,
20                                      size_t input_len,
21                                      uint8_t* encoded) {
22  return WebRtcPcm16b_Encode(audio, input_len, encoded);
23}
24
25size_t AudioEncoderPcm16B::BytesPerSample() const {
26  return 2;
27}
28
29namespace {
30AudioEncoderPcm16B::Config CreateConfig(const CodecInst& codec_inst) {
31  AudioEncoderPcm16B::Config config;
32  config.num_channels = codec_inst.channels;
33  config.sample_rate_hz = codec_inst.plfreq;
34  config.frame_size_ms = rtc::CheckedDivExact(
35      codec_inst.pacsize, rtc::CheckedDivExact(config.sample_rate_hz, 1000));
36  config.payload_type = codec_inst.pltype;
37  return config;
38}
39}  // namespace
40
41bool AudioEncoderPcm16B::Config::IsOk() const {
42  if ((sample_rate_hz != 8000) && (sample_rate_hz != 16000) &&
43      (sample_rate_hz != 32000) && (sample_rate_hz != 48000))
44    return false;
45  return AudioEncoderPcm::Config::IsOk();
46}
47
48AudioEncoderPcm16B::AudioEncoderPcm16B(const CodecInst& codec_inst)
49    : AudioEncoderPcm16B(CreateConfig(codec_inst)) {}
50
51}  // namespace webrtc
52