blob: 2e2fcd414f645ff5b7b6bb1ea3c0a2b1c16e2f08 [file] [log] [blame]
/*
* Copyright (C) 2011 Ericsson AB. All rights reserved.
* Copyright (C) 2012 Google Inc. All rights reserved.
* Copyright (C) 2013-2018 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name of Ericsson nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "RealtimeMediaSourceCenter.h"
#if ENABLE(MEDIA_STREAM)
#include "CaptureDeviceManager.h"
#include "Logging.h"
#include "MediaStreamPrivate.h"
#include "RuntimeEnabledFeatures.h"
#include <wtf/SHA1.h>
namespace WebCore {
RealtimeMediaSourceCenter& RealtimeMediaSourceCenter::singleton()
{
ASSERT(isMainThread());
static NeverDestroyed<RealtimeMediaSourceCenter> center;
return center;
}
RealtimeMediaSourceCenter::RealtimeMediaSourceCenter()
{
m_supportedConstraints.setSupportsEchoCancellation(true);
m_supportedConstraints.setSupportsWidth(true);
m_supportedConstraints.setSupportsHeight(true);
m_supportedConstraints.setSupportsAspectRatio(true);
m_supportedConstraints.setSupportsFrameRate(true);
m_supportedConstraints.setSupportsFacingMode(true);
m_supportedConstraints.setSupportsVolume(true);
m_supportedConstraints.setSupportsDeviceId(true);
}
RealtimeMediaSourceCenter::~RealtimeMediaSourceCenter() = default;
void RealtimeMediaSourceCenter::createMediaStream(Ref<const Logger>&& logger, NewMediaStreamHandler&& completionHandler, String&& hashSalt, CaptureDevice&& audioDevice, CaptureDevice&& videoDevice, const MediaStreamRequest& request)
{
Vector<Ref<RealtimeMediaSource>> audioSources;
Vector<Ref<RealtimeMediaSource>> videoSources;
String invalidConstraint;
if (audioDevice) {
auto audioSource = audioCaptureFactory().createAudioCaptureSource(WTFMove(audioDevice), String { hashSalt }, &request.audioConstraints);
if (audioSource)
audioSources.append(audioSource.source());
else {
#if !LOG_DISABLED
if (!audioSource.errorMessage.isEmpty())
LOG(Media, "RealtimeMediaSourceCenter::createMediaStream(%p), audio constraints failed to apply: %s", this, audioSource.errorMessage.utf8().data());
#endif
completionHandler(nullptr);
return;
}
}
if (videoDevice) {
CaptureSourceOrError videoSource;
if (videoDevice.type() == CaptureDevice::DeviceType::Camera)
videoSource = videoCaptureFactory().createVideoCaptureSource(WTFMove(videoDevice), WTFMove(hashSalt), &request.videoConstraints);
else
videoSource = displayCaptureFactory().createDisplayCaptureSource(WTFMove(videoDevice), &request.videoConstraints);
if (videoSource)
videoSources.append(videoSource.source());
else {
#if !LOG_DISABLED
if (!videoSource.errorMessage.isEmpty())
LOG(Media, "RealtimeMediaSourceCenter::createMediaStream(%p), video constraints failed to apply: %s", this, videoSource.errorMessage.utf8().data());
#endif
completionHandler(nullptr);
return;
}
}
completionHandler(MediaStreamPrivate::create(WTFMove(logger), audioSources, videoSources));
}
Vector<CaptureDevice> RealtimeMediaSourceCenter::getMediaStreamDevices()
{
Vector<CaptureDevice> result;
for (auto& device : audioCaptureFactory().audioCaptureDeviceManager().captureDevices()) {
if (device.enabled())
result.append(device);
}
for (auto& device : videoCaptureFactory().videoCaptureDeviceManager().captureDevices()) {
if (device.enabled())
result.append(device);
}
for (auto& device : displayCaptureFactory().displayCaptureDeviceManager().captureDevices()) {
if (device.enabled())
result.append(device);
}
return result;
}
static void addStringToSHA1(SHA1& sha1, const String& string)
{
if (string.isEmpty())
return;
if (string.is8Bit() && string.isAllASCII()) {
const uint8_t nullByte = 0;
sha1.addBytes(string.characters8(), string.length());
sha1.addBytes(&nullByte, 1);
return;
}
auto utf8 = string.utf8();
sha1.addBytes(reinterpret_cast<const uint8_t*>(utf8.data()), utf8.length() + 1); // Include terminating null byte.
}
String RealtimeMediaSourceCenter::hashStringWithSalt(const String& id, const String& hashSalt)
{
if (id.isEmpty() || hashSalt.isEmpty())
return emptyString();
SHA1 sha1;
addStringToSHA1(sha1, id);
addStringToSHA1(sha1, hashSalt);
SHA1::Digest digest;
sha1.computeHash(digest);
return SHA1::hexDigest(digest).data();
}
void RealtimeMediaSourceCenter::setDevicesChangedObserver(std::function<void()>&& observer)
{
ASSERT(isMainThread());
ASSERT(!m_deviceChangedObserver);
m_deviceChangedObserver = WTFMove(observer);
}
void RealtimeMediaSourceCenter::captureDevicesChanged()
{
ASSERT(isMainThread());
if (m_deviceChangedObserver)
m_deviceChangedObserver();
}
void RealtimeMediaSourceCenter::getDisplayMediaDevices(const MediaStreamRequest& request, Vector<DeviceInfo>& diaplayDeviceInfo, String& firstInvalidConstraint)
{
if (!request.videoConstraints.isValid)
return;
String invalidConstraint;
for (auto& device : displayCaptureFactory().displayCaptureDeviceManager().captureDevices()) {
if (!device.enabled())
return;
auto sourceOrError = displayCaptureFactory().createDisplayCaptureSource(device, { });
if (sourceOrError && sourceOrError.captureSource->supportsConstraints(request.videoConstraints, invalidConstraint))
diaplayDeviceInfo.append({sourceOrError.captureSource->fitnessScore(), device});
if (!invalidConstraint.isEmpty() && firstInvalidConstraint.isEmpty())
firstInvalidConstraint = invalidConstraint;
}
}
void RealtimeMediaSourceCenter::getUserMediaDevices(const MediaStreamRequest& request, String&& hashSalt, Vector<DeviceInfo>& audioDeviceInfo, Vector<DeviceInfo>& videoDeviceInfo, String& firstInvalidConstraint)
{
String invalidConstraint;
if (request.audioConstraints.isValid) {
for (auto& device : audioCaptureFactory().audioCaptureDeviceManager().captureDevices()) {
if (!device.enabled())
continue;
auto sourceOrError = audioCaptureFactory().createAudioCaptureSource(device, String { hashSalt }, { });
if (sourceOrError && sourceOrError.captureSource->supportsConstraints(request.audioConstraints, invalidConstraint))
audioDeviceInfo.append({sourceOrError.captureSource->fitnessScore(), device});
if (!invalidConstraint.isEmpty() && firstInvalidConstraint.isEmpty())
firstInvalidConstraint = invalidConstraint;
}
}
if (request.videoConstraints.isValid) {
for (auto& device : videoCaptureFactory().videoCaptureDeviceManager().captureDevices()) {
if (!device.enabled())
continue;
auto sourceOrError = videoCaptureFactory().createVideoCaptureSource(device, String { hashSalt }, { });
if (sourceOrError && sourceOrError.captureSource->supportsConstraints(request.videoConstraints, invalidConstraint))
videoDeviceInfo.append({sourceOrError.captureSource->fitnessScore(), device});
if (!invalidConstraint.isEmpty() && firstInvalidConstraint.isEmpty())
firstInvalidConstraint = invalidConstraint;
}
}
}
void RealtimeMediaSourceCenter::validateRequestConstraints(ValidConstraintsHandler&& validHandler, InvalidConstraintsHandler&& invalidHandler, const MediaStreamRequest& request, String&& deviceIdentifierHashSalt)
{
struct {
bool operator()(const DeviceInfo& a, const DeviceInfo& b)
{
return a.fitnessScore > b.fitnessScore;
}
} sortBasedOnFitnessScore;
Vector<DeviceInfo> audioDeviceInfo;
Vector<DeviceInfo> videoDeviceInfo;
String firstInvalidConstraint;
if (request.type == MediaStreamRequest::Type::DisplayMedia)
getDisplayMediaDevices(request, videoDeviceInfo, firstInvalidConstraint);
else
getUserMediaDevices(request, String { deviceIdentifierHashSalt }, audioDeviceInfo, videoDeviceInfo, firstInvalidConstraint);
if ((request.audioConstraints.isValid && audioDeviceInfo.isEmpty()) || (request.videoConstraints.isValid && videoDeviceInfo.isEmpty())) {
invalidHandler(firstInvalidConstraint);
return;
}
Vector<CaptureDevice> audioDevices;
if (!audioDeviceInfo.isEmpty()) {
std::sort(audioDeviceInfo.begin(), audioDeviceInfo.end(), sortBasedOnFitnessScore);
audioDevices = WTF::map(audioDeviceInfo, [] (auto& info) {
return info.device;
});
}
Vector<CaptureDevice> videoDevices;
if (!videoDeviceInfo.isEmpty()) {
std::sort(videoDeviceInfo.begin(), videoDeviceInfo.end(), sortBasedOnFitnessScore);
videoDevices = WTF::map(videoDeviceInfo, [] (auto& info) {
return info.device;
});
}
validHandler(WTFMove(audioDevices), WTFMove(videoDevices), WTFMove(deviceIdentifierHashSalt));
}
void RealtimeMediaSourceCenter::setCapturePageState(bool interrupted, bool pageMuted)
{
if (RuntimeEnabledFeatures::sharedFeatures().interruptAudioOnPageVisibilityChangeEnabled())
audioCaptureFactory().setAudioCapturePageState(interrupted, pageMuted);
videoCaptureFactory().setVideoCapturePageState(interrupted, pageMuted);
}
void RealtimeMediaSourceCenter::setAudioCaptureFactory(AudioCaptureFactory& factory)
{
m_audioCaptureFactoryOverride = &factory;
}
void RealtimeMediaSourceCenter::unsetAudioCaptureFactory(AudioCaptureFactory& oldOverride)
{
ASSERT_UNUSED(oldOverride, m_audioCaptureFactoryOverride == &oldOverride);
if (&oldOverride == m_audioCaptureFactoryOverride)
m_audioCaptureFactoryOverride = nullptr;
}
AudioCaptureFactory& RealtimeMediaSourceCenter::audioCaptureFactory()
{
return m_audioCaptureFactoryOverride ? *m_audioCaptureFactoryOverride : defaultAudioCaptureFactory();
}
void RealtimeMediaSourceCenter::setVideoCaptureFactory(VideoCaptureFactory& factory)
{
m_videoCaptureFactoryOverride = &factory;
}
void RealtimeMediaSourceCenter::unsetVideoCaptureFactory(VideoCaptureFactory& oldOverride)
{
ASSERT_UNUSED(oldOverride, m_videoCaptureFactoryOverride == &oldOverride);
if (&oldOverride == m_videoCaptureFactoryOverride)
m_videoCaptureFactoryOverride = nullptr;
}
VideoCaptureFactory& RealtimeMediaSourceCenter::videoCaptureFactory()
{
return m_videoCaptureFactoryOverride ? *m_videoCaptureFactoryOverride : defaultVideoCaptureFactory();
}
void RealtimeMediaSourceCenter::setDisplayCaptureFactory(DisplayCaptureFactory& factory)
{
m_displayCaptureFactoryOverride = &factory;
}
void RealtimeMediaSourceCenter::unsetDisplayCaptureFactory(DisplayCaptureFactory& oldOverride)
{
ASSERT_UNUSED(oldOverride, m_displayCaptureFactoryOverride == &oldOverride);
if (&oldOverride == m_displayCaptureFactoryOverride)
m_displayCaptureFactoryOverride = nullptr;
}
DisplayCaptureFactory& RealtimeMediaSourceCenter::displayCaptureFactory()
{
return m_displayCaptureFactoryOverride ? *m_displayCaptureFactoryOverride : defaultDisplayCaptureFactory();
}
#if !PLATFORM(COCOA)
bool RealtimeMediaSourceCenter::shouldInterruptAudioOnPageVisibilityChange()
{
return false;
}
#endif
} // namespace WebCore
#endif // ENABLE(MEDIA_STREAM)