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 #ifndef MODULES_AUDIO_CODING_NETEQ_TOOLS_AUDIO_SINK_H_ 12 #define MODULES_AUDIO_CODING_NETEQ_TOOLS_AUDIO_SINK_H_ 13 14 #include "api/audio/audio_frame.h" 15 #include "rtc_base/constructor_magic.h" 16 17 namespace webrtc { 18 namespace test { 19 20 // Interface class for an object receiving raw output audio from test 21 // applications. 22 class AudioSink { 23 public: AudioSink()24 AudioSink() {} ~AudioSink()25 virtual ~AudioSink() {} 26 27 // Writes |num_samples| from |audio| to the AudioSink. Returns true if 28 // successful, otherwise false. 29 virtual bool WriteArray(const int16_t* audio, size_t num_samples) = 0; 30 31 // Writes |audio_frame| to the AudioSink. Returns true if successful, 32 // otherwise false. WriteAudioFrame(const AudioFrame & audio_frame)33 bool WriteAudioFrame(const AudioFrame& audio_frame) { 34 return WriteArray(audio_frame.data(), audio_frame.samples_per_channel_ * 35 audio_frame.num_channels_); 36 } 37 38 private: 39 RTC_DISALLOW_COPY_AND_ASSIGN(AudioSink); 40 }; 41 42 // Forks the output audio to two AudioSink objects. 43 class AudioSinkFork : public AudioSink { 44 public: AudioSinkFork(AudioSink * left,AudioSink * right)45 AudioSinkFork(AudioSink* left, AudioSink* right) 46 : left_sink_(left), right_sink_(right) {} 47 48 bool WriteArray(const int16_t* audio, size_t num_samples) override; 49 50 private: 51 AudioSink* left_sink_; 52 AudioSink* right_sink_; 53 54 RTC_DISALLOW_COPY_AND_ASSIGN(AudioSinkFork); 55 }; 56 57 // An AudioSink implementation that does nothing. 58 class VoidAudioSink : public AudioSink { 59 public: 60 VoidAudioSink() = default; 61 bool WriteArray(const int16_t* audio, size_t num_samples) override; 62 63 private: 64 RTC_DISALLOW_COPY_AND_ASSIGN(VoidAudioSink); 65 }; 66 67 } // namespace test 68 } // namespace webrtc 69 #endif // MODULES_AUDIO_CODING_NETEQ_TOOLS_AUDIO_SINK_H_ 70