97 lines
3.2 KiB
JavaScript
97 lines
3.2 KiB
JavaScript
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function createStatsSummary() {
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return {
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video: {
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packetsLost: 0,
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packetsReceived: 0,
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bytesReceived: 0,
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jitter: 0,
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roundTripTime: 0,
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fps: 0,
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bitrate: 0
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},
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audio: {
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packetsLost: 0,
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packetsReceived: 0,
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bytesReceived: 0,
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jitter: 0
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},
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network: {
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totalPacketsLost: 0,
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totalPacketsReceived: 0,
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inboundRtpCount: 0,
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jitter: 0,
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roundTripTime: 0
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}
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};
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}
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export function summarizeInboundStats(stats) {
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const summary = createStatsSummary();
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stats.forEach((report) => {
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if (report.type === 'inbound-rtp' && report.mediaType === 'video') {
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summary.network.inboundRtpCount++;
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if (report.packetsLost !== undefined && report.packetsReceived !== undefined) {
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summary.network.totalPacketsLost += report.packetsLost;
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summary.network.totalPacketsReceived += report.packetsReceived;
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}
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if (report.jitter !== undefined) {
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summary.network.jitter = Math.max(summary.network.jitter, report.jitter);
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}
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if (report.roundTripTime !== undefined) {
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summary.network.roundTripTime = Math.max(summary.network.roundTripTime, report.roundTripTime);
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}
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summary.video.packetsLost = report.packetsLost || 0;
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summary.video.packetsReceived = report.packetsReceived || 0;
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summary.video.bytesReceived = report.bytesReceived || 0;
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summary.video.jitter = report.jitter || 0;
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summary.video.roundTripTime = report.roundTripTime || 0;
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summary.video.fps = report.framesPerSecond || 0;
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if (report.bytesReceived && report.timestamp) {
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const duration = report.timestamp / 1000;
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summary.video.bitrate = duration > 0
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? Math.round((report.bytesReceived * 8) / (duration * 1000))
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: 0;
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}
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} else if (report.type === 'inbound-rtp' && report.mediaType === 'audio') {
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summary.audio.packetsLost = report.packetsLost || 0;
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summary.audio.packetsReceived = report.packetsReceived || 0;
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summary.audio.bytesReceived = report.bytesReceived || 0;
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summary.audio.jitter = report.jitter || 0;
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}
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});
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return summary;
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}
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export function getNetworkQualityFromSummary(summary) {
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const { totalPacketsLost, totalPacketsReceived, inboundRtpCount, jitter, roundTripTime } = summary.network;
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if (inboundRtpCount === 0) {
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return 'no_signal';
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}
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const packetLossRate = totalPacketsReceived > 0
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? totalPacketsLost / (totalPacketsLost + totalPacketsReceived)
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: 0;
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const jitterMs = jitter * 1000;
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const rttMs = roundTripTime * 1000;
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if (packetLossRate > 0.05 || jitterMs > 100 || rttMs > 300) {
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return 'poor';
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}
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if (packetLossRate > 0.02 || jitterMs > 50 || rttMs > 150) {
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return 'fair';
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}
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if (packetLossRate > 0.01 || jitterMs > 30 || rttMs > 100) {
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return 'good';
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}
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return 'excellent';
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}
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