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 17 namespace webrtc { 18 EncodeCall(const int16_t * audio,size_t input_len,uint8_t * encoded)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 BytesPerSample() const25size_t AudioEncoderPcm16B::BytesPerSample() const { 26 return 2; 27 } 28 29 namespace { CreateConfig(const CodecInst & codec_inst)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 IsOk() const41bool 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 AudioEncoderPcm16B(const CodecInst & codec_inst)48AudioEncoderPcm16B::AudioEncoderPcm16B(const CodecInst& codec_inst) 49 : AudioEncoderPcm16B(CreateConfig(codec_inst)) {} 50 51 } // namespace webrtc 52