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7030c7b0a6
* The space bubble around a player's avatar is now visualized. When another avatar enters a player's bubble, The bubble visualization will appear, a soft tone will play, and the "Bubble" HUD button will flash. * The space bubble radius setting has been removed. Space bubble size now scales based on avatar scale. * Space bubble collision detection is now more accurate and reliable. * CTRL + N toggles the bubble. * The "Bubble" HUD button has been moved to the proper location.
97 lines
3.6 KiB
C++
97 lines
3.6 KiB
C++
//
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// PositionalAudioStream.cpp
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// libraries/audio/src
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//
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// Created by Stephen Birarda on 6/5/13.
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// Copyright 2013 High Fidelity, Inc.
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//
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// Distributed under the Apache License, Version 2.0.
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// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
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//
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#include "PositionalAudioStream.h"
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#include "SharedUtil.h"
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#include <cstring>
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#include <glm/detail/func_common.hpp>
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#include <QtCore/QDataStream>
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#include <Node.h>
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#include <udt/PacketHeaders.h>
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#include <UUID.h>
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PositionalAudioStream::PositionalAudioStream(PositionalAudioStream::Type type, bool isStereo, int numStaticJitterFrames) :
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InboundAudioStream(isStereo ? AudioConstants::STEREO : AudioConstants::MONO,
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AudioConstants::NETWORK_FRAME_SAMPLES_PER_CHANNEL,
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AUDIOMIXER_INBOUND_RING_BUFFER_FRAME_CAPACITY,
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numStaticJitterFrames),
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_type(type),
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_position(0.0f, 0.0f, 0.0f),
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_orientation(0.0f, 0.0f, 0.0f, 0.0f),
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_shouldLoopbackForNode(false),
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_isStereo(isStereo),
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_ignorePenumbra(false),
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_lastPopOutputTrailingLoudness(0.0f),
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_lastPopOutputLoudness(0.0f),
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_quietestTrailingFrameLoudness(std::numeric_limits<float>::max()),
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_quietestFrameLoudness(0.0f),
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_frameCounter(0) {}
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void PositionalAudioStream::resetStats() {
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_lastPopOutputTrailingLoudness = 0.0f;
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_lastPopOutputLoudness = 0.0f;
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}
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void PositionalAudioStream::updateLastPopOutputLoudnessAndTrailingLoudness() {
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_lastPopOutputLoudness = _ringBuffer.getFrameLoudness(_lastPopOutput);
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const int TRAILING_MUTE_THRESHOLD_FRAMES = 400;
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const int TRAILING_LOUDNESS_FRAMES = 200;
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const float CURRENT_FRAME_RATIO = 1.0f / TRAILING_LOUDNESS_FRAMES;
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const float PREVIOUS_FRAMES_RATIO = 1.0f - CURRENT_FRAME_RATIO;
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const float LOUDNESS_EPSILON = 0.000001f;
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if (_lastPopOutputLoudness >= _lastPopOutputTrailingLoudness) {
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_lastPopOutputTrailingLoudness = _lastPopOutputLoudness;
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} else {
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_lastPopOutputTrailingLoudness = (_lastPopOutputTrailingLoudness * PREVIOUS_FRAMES_RATIO) + (CURRENT_FRAME_RATIO * _lastPopOutputLoudness);
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if (_lastPopOutputTrailingLoudness < LOUDNESS_EPSILON) {
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_lastPopOutputTrailingLoudness = 0;
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}
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}
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if (_frameCounter++ == TRAILING_MUTE_THRESHOLD_FRAMES) {
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_quietestFrameLoudness = _quietestTrailingFrameLoudness;
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_frameCounter = 0;
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_quietestTrailingFrameLoudness = std::numeric_limits<float>::max();
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}
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if (_lastPopOutputLoudness < _quietestTrailingFrameLoudness) {
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_quietestTrailingFrameLoudness = _lastPopOutputLoudness;
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}
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}
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int PositionalAudioStream::parsePositionalData(const QByteArray& positionalByteArray) {
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QDataStream packetStream(positionalByteArray);
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packetStream.readRawData(reinterpret_cast<char*>(&_position), sizeof(_position));
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packetStream.readRawData(reinterpret_cast<char*>(&_orientation), sizeof(_orientation));
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packetStream.readRawData(reinterpret_cast<char*>(&_avatarBoundingBoxCorner), sizeof(_avatarBoundingBoxCorner));
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packetStream.readRawData(reinterpret_cast<char*>(&_avatarBoundingBoxScale), sizeof(_avatarBoundingBoxScale));
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// if this node sent us a NaN for first float in orientation then don't consider this good audio and bail
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if (glm::isnan(_orientation.x)) {
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// NOTE: why would we reset the ring buffer here?
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_ringBuffer.reset();
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return 0;
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}
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return packetStream.device()->pos();
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}
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AudioStreamStats PositionalAudioStream::getAudioStreamStats() const {
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AudioStreamStats streamStats = InboundAudioStream::getAudioStreamStats();
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streamStats._streamType = _type;
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return streamStats;
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}
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