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| 1 /* | |
| 2 * libjingle | |
| 3 * Copyright 2013 Google Inc. | |
| 4 * | |
| 5 * Redistribution and use in source and binary forms, with or without | |
| 6 * modification, are permitted provided that the following conditions are met: | |
| 7 * | |
| 8 * 1. Redistributions of source code must retain the above copyright notice, | |
| 9 * this list of conditions and the following disclaimer. | |
| 10 * 2. Redistributions in binary form must reproduce the above copyright notice, | |
| 11 * this list of conditions and the following disclaimer in the documentation | |
| 12 * and/or other materials provided with the distribution. | |
| 13 * 3. The name of the author may not be used to endorse or promote products | |
| 14 * derived from this software without specific prior written permission. | |
| 15 * | |
| 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
| 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
| 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO | |
| 19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; | |
| 22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
| 23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | |
| 24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
| 25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 26 */ | |
| 27 | |
| 28 #include "talk/app/webrtc/localaudiosource.h" | |
| 29 | |
| 30 #include <vector> | |
| 31 | |
| 32 #include "talk/app/webrtc/mediaconstraintsinterface.h" | |
| 33 #include "webrtc/media/base/mediaengine.h" | |
| 34 | |
| 35 using webrtc::MediaConstraintsInterface; | |
| 36 using webrtc::MediaSourceInterface; | |
| 37 | |
| 38 namespace webrtc { | |
| 39 | |
| 40 namespace { | |
| 41 | |
| 42 // Convert constraints to audio options. Return false if constraints are | |
| 43 // invalid. | |
| 44 void FromConstraints(const MediaConstraintsInterface::Constraints& constraints, | |
| 45 cricket::AudioOptions* options) { | |
| 46 // This design relies on the fact that all the audio constraints are actually | |
| 47 // "options", i.e. boolean-valued and always satisfiable. If the constraints | |
| 48 // are extended to include non-boolean values or actual format constraints, | |
| 49 // a different algorithm will be required. | |
| 50 struct { | |
| 51 const char* name; | |
| 52 rtc::Optional<bool>& value; | |
| 53 } key_to_value[] = { | |
| 54 {MediaConstraintsInterface::kGoogEchoCancellation, | |
| 55 options->echo_cancellation}, | |
| 56 {MediaConstraintsInterface::kExtendedFilterEchoCancellation, | |
| 57 options->extended_filter_aec}, | |
| 58 {MediaConstraintsInterface::kDAEchoCancellation, | |
| 59 options->delay_agnostic_aec}, | |
| 60 {MediaConstraintsInterface::kAutoGainControl, options->auto_gain_control}, | |
| 61 {MediaConstraintsInterface::kExperimentalAutoGainControl, | |
| 62 options->experimental_agc}, | |
| 63 {MediaConstraintsInterface::kNoiseSuppression, | |
| 64 options->noise_suppression}, | |
| 65 {MediaConstraintsInterface::kExperimentalNoiseSuppression, | |
| 66 options->experimental_ns}, | |
| 67 {MediaConstraintsInterface::kHighpassFilter, options->highpass_filter}, | |
| 68 {MediaConstraintsInterface::kTypingNoiseDetection, | |
| 69 options->typing_detection}, | |
| 70 {MediaConstraintsInterface::kAudioMirroring, options->stereo_swapping}, | |
| 71 {MediaConstraintsInterface::kAecDump, options->aec_dump} | |
| 72 }; | |
| 73 | |
| 74 for (const auto& constraint : constraints) { | |
| 75 bool value = false; | |
| 76 if (!rtc::FromString(constraint.value, &value)) | |
| 77 continue; | |
| 78 | |
| 79 for (auto& entry : key_to_value) { | |
| 80 if (constraint.key.compare(entry.name) == 0) | |
| 81 entry.value = rtc::Optional<bool>(value); | |
| 82 } | |
| 83 } | |
| 84 } | |
| 85 | |
| 86 } // namespace | |
| 87 | |
| 88 rtc::scoped_refptr<LocalAudioSource> LocalAudioSource::Create( | |
| 89 const PeerConnectionFactoryInterface::Options& options, | |
| 90 const MediaConstraintsInterface* constraints) { | |
| 91 rtc::scoped_refptr<LocalAudioSource> source( | |
| 92 new rtc::RefCountedObject<LocalAudioSource>()); | |
| 93 source->Initialize(options, constraints); | |
| 94 return source; | |
| 95 } | |
| 96 | |
| 97 void LocalAudioSource::Initialize( | |
| 98 const PeerConnectionFactoryInterface::Options& options, | |
| 99 const MediaConstraintsInterface* constraints) { | |
| 100 if (!constraints) | |
| 101 return; | |
| 102 | |
| 103 // Apply optional constraints first, they will be overwritten by mandatory | |
| 104 // constraints. | |
| 105 FromConstraints(constraints->GetOptional(), &options_); | |
| 106 | |
| 107 cricket::AudioOptions mandatory_options; | |
| 108 FromConstraints(constraints->GetMandatory(), &mandatory_options); | |
| 109 options_.SetAll(mandatory_options); | |
| 110 source_state_ = kLive; | |
| 111 } | |
| 112 | |
| 113 } // namespace webrtc | |
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Chromium Code Reviews
Issue 1610243002:
Move talk/app/webrtc to webrtc/api (Closed)
Base URL: https://chromium.googlesource.com/external/webrtc.git@master