void WebMediaSessionManager::configurePlaybackTargetClients()
{
size_t indexOfClientThatRequestedPicker = notFound;
size_t indexOfLastClientToRequestPicker = notFound;
size_t indexOfClientWillPlayToTarget = notFound;
bool haveActiveRoute = m_playbackTarget && m_playbackTarget->hasActiveRoute();
for (size_t i = 0; i < m_clientState.size(); ++i) {
auto& state = m_clientState[i];
LOG(Media, "WebMediaSessionManager::configurePlaybackTargetClients %zu - client (%p + %llu) requestedPicker = %i, flags = %s", i, &state->client, state->contextId, state->requestedPicker, mediaProducerStateString(state->flags).utf8().data());
if (m_targetChanged && state->requestedPicker)
indexOfClientThatRequestedPicker = i;
if (indexOfClientWillPlayToTarget == notFound && flagsAreSet(state->flags, MediaProducer::IsPlayingToExternalDevice))
indexOfClientWillPlayToTarget = i;
if (indexOfClientWillPlayToTarget == notFound && haveActiveRoute && state->previouslyRequestedPicker)
indexOfLastClientToRequestPicker = i;
}
if (indexOfClientThatRequestedPicker != notFound)
indexOfClientWillPlayToTarget = indexOfClientThatRequestedPicker;
if (indexOfClientWillPlayToTarget == notFound && indexOfLastClientToRequestPicker != notFound)
indexOfClientWillPlayToTarget = indexOfLastClientToRequestPicker;
LOG(Media, "WebMediaSessionManager::configurePlaybackTargetClients - indexOfClientWillPlayToTarget = %zu", indexOfClientWillPlayToTarget);
for (size_t i = 0; i < m_clientState.size(); ++i) {
auto& state = m_clientState[i];
if (m_playbackTarget)
state->client.setPlaybackTarget(state->contextId, *m_playbackTarget.copyRef());
if (i != indexOfClientWillPlayToTarget || !haveActiveRoute)
state->client.setShouldPlayToPlaybackTarget(state->contextId, false);
state->configurationRequired = false;
if (m_targetChanged)
state->requestedPicker = false;
}
if (haveActiveRoute && indexOfClientWillPlayToTarget != notFound) {
auto& state = m_clientState[indexOfClientWillPlayToTarget];
if (!flagsAreSet(state->flags, MediaProducer::IsPlayingToExternalDevice))
state->client.setShouldPlayToPlaybackTarget(state->contextId, true);
}
m_targetChanged = false;
configureWatchdogTimer();
}
void WebMediaSessionManager::clientStateDidChange(WebMediaSessionManagerClient& client, uint64_t contextId, MediaProducer::MediaStateFlags newFlags)
{
size_t index = find(&client, contextId);
ASSERT(index != notFound);
if (index == notFound)
return;
auto& changedClientState = m_clientState[index];
MediaProducer::MediaStateFlags oldFlags = changedClientState->flags;
LOG(Media, "WebMediaSessionManager::clientStateDidChange(%p + %llu) - new flags = %s, old flags = %s", &client, contextId, mediaProducerStateString(newFlags).utf8().data(), mediaProducerStateString(oldFlags).utf8().data());
if (newFlags == oldFlags)
return;
changedClientState->flags = newFlags;
if (!flagsAreSet(oldFlags, MediaProducer::RequiresPlaybackTargetMonitoring) && flagsAreSet(newFlags, MediaProducer::RequiresPlaybackTargetMonitoring))
scheduleDelayedTask(TargetMonitoringConfigurationTask);
if (!m_playbackTarget || !m_playbackTarget->hasActiveRoute())
return;
if (!flagsAreSet(newFlags, MediaProducer::ExternalDeviceAutoPlayCandidate) || !flagsAreSet(newFlags, MediaProducer::IsPlayingVideo))
return;
// Do not interrupt another element already playing to a device.
bool anotherClientHasActiveTarget = false;
for (auto& state : m_clientState) {
if (state == changedClientState)
continue;
if (flagsAreSet(state->flags, MediaProducer::IsPlayingToExternalDevice)) {
if (flagsAreSet(state->flags, MediaProducer::IsPlayingVideo))
return;
anotherClientHasActiveTarget = true;
}
}
// Do not take the target if another client has it and the client reporting a state change is not playing.
if (anotherClientHasActiveTarget && !flagsAreSet(newFlags, MediaProducer::IsPlayingVideo))
return;
for (auto& state : m_clientState) {
if (state == changedClientState)
continue;
state->client.setShouldPlayToPlaybackTarget(state->contextId, false);
}
changedClientState->client.setShouldPlayToPlaybackTarget(changedClientState->contextId, true);
if (index && m_clientState.size() > 1)
std::swap(m_clientState.at(index), m_clientState.at(0));
}
void WebMediaSessionManager::clientStateDidChange(WebMediaSessionManagerClient& client, uint64_t contextId, MediaProducer::MediaStateFlags newFlags)
{
size_t index = find(&client, contextId);
ASSERT(index != notFound);
if (index == notFound)
return;
auto& changedClientState = m_clientState[index];
MediaProducer::MediaStateFlags oldFlags = changedClientState->flags;
if (newFlags == oldFlags)
return;
LOG(Media, "WebMediaSessionManager::clientStateDidChange(%p + %llu) - new flags = %s, old flags = %s", &client, contextId, mediaProducerStateString(newFlags).utf8().data(), mediaProducerStateString(oldFlags).utf8().data());
changedClientState->flags = newFlags;
if (!flagsAreSet(oldFlags, MediaProducer::RequiresPlaybackTargetMonitoring) && flagsAreSet(newFlags, MediaProducer::RequiresPlaybackTargetMonitoring))
scheduleDelayedTask(TargetMonitoringConfigurationTask);
MediaProducer::MediaStateFlags playingToTargetFlags = MediaProducer::IsPlayingToExternalDevice | MediaProducer::IsPlayingVideo;
if ((oldFlags & playingToTargetFlags) != (newFlags & playingToTargetFlags)) {
if (flagsAreSet(oldFlags, MediaProducer::IsPlayingVideo) && !flagsAreSet(newFlags, MediaProducer::IsPlayingVideo) && flagsAreSet(newFlags, MediaProducer::DidPlayToEnd))
changedClientState->playedToEnd = true;
scheduleDelayedTask(WatchdogTimerConfigurationTask);
}
if (!m_playbackTarget || !m_playbackTarget->hasActiveRoute() || !flagsAreSet(newFlags, MediaProducer::ExternalDeviceAutoPlayCandidate))
return;
// Do not interrupt another element already playing to a device.
for (auto& state : m_clientState) {
if (state == changedClientState)
continue;
if (flagsAreSet(state->flags, MediaProducer::IsPlayingToExternalDevice) && flagsAreSet(state->flags, MediaProducer::IsPlayingVideo))
return;
}
// Do not take begin playing to the device unless playback has just started.
if (!flagsAreSet(newFlags, MediaProducer::IsPlayingVideo) || flagsAreSet(oldFlags, MediaProducer::IsPlayingVideo))
return;
for (auto& state : m_clientState) {
if (state == changedClientState)
continue;
state->client.setShouldPlayToPlaybackTarget(state->contextId, false);
}
changedClientState->client.setShouldPlayToPlaybackTarget(changedClientState->contextId, true);
if (index && m_clientState.size() > 1)
std::swap(m_clientState.at(index), m_clientState.at(0));
}
