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 "modules/audio_coding/codecs/pcm16b/audio_encoder_pcm16b.h" 12 13 #include <algorithm> 14 15 #include "common_types.h" // NOLINT(build/include) 16 #include "modules/audio_coding/codecs/pcm16b/pcm16b.h" 17 #include "rtc_base/checks.h" 18 #include "rtc_base/numerics/safe_conversions.h" 19 20 namespace webrtc { 21 EncodeCall(const int16_t * audio,size_t input_len,uint8_t * encoded)22size_t AudioEncoderPcm16B::EncodeCall(const int16_t* audio, 23 size_t input_len, 24 uint8_t* encoded) { 25 return WebRtcPcm16b_Encode(audio, input_len, encoded); 26 } 27 BytesPerSample() const28size_t AudioEncoderPcm16B::BytesPerSample() const { 29 return 2; 30 } 31 GetCodecType() const32AudioEncoder::CodecType AudioEncoderPcm16B::GetCodecType() const { 33 return CodecType::kOther; 34 } 35 36 namespace { 37 CreateConfig(const CodecInst & codec_inst)38AudioEncoderPcm16B::Config CreateConfig(const CodecInst& codec_inst) { 39 AudioEncoderPcm16B::Config config; 40 config.num_channels = codec_inst.channels; 41 config.sample_rate_hz = codec_inst.plfreq; 42 config.frame_size_ms = rtc::CheckedDivExact( 43 codec_inst.pacsize, rtc::CheckedDivExact(config.sample_rate_hz, 1000)); 44 config.payload_type = codec_inst.pltype; 45 return config; 46 } 47 48 } // namespace 49 IsOk() const50bool AudioEncoderPcm16B::Config::IsOk() const { 51 if ((sample_rate_hz != 8000) && (sample_rate_hz != 16000) && 52 (sample_rate_hz != 32000) && (sample_rate_hz != 48000)) 53 return false; 54 return AudioEncoderPcm::Config::IsOk(); 55 } 56 AudioEncoderPcm16B(const CodecInst & codec_inst)57AudioEncoderPcm16B::AudioEncoderPcm16B(const CodecInst& codec_inst) 58 : AudioEncoderPcm16B(CreateConfig(codec_inst)) {} 59 60 } // namespace webrtc 61