OvenMediaEngine Enterprise
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  • About
    • Introduction
    • Release Notes
      • 0.18.2
      • 0.18.1
      • 0.18.0
      • 0.17.3
      • 0.17.2
      • 0.17.1
      • 0.17.0
      • 0.16.8
      • 0.16.7
      • 0.16.6
      • 0.16.5
      • 0.16.4
  • Installation
    • Getting Started
      • Getting Started with Ubuntu
      • Getting Started with RHEL
      • Getting Started with Docker
    • Configuration Structure Overview
  • Web Console
    • Getting Started with Web Console
    • Web Console Overview
      • Sign In
      • Change Password
      • Web Console Home
      • Stream List
        • Managed and Instant Streams
        • Scheduled Channels | 0.16.4.0+
        • Multiplex Channels | 0.16.5.0+
      • Event Monitoring | 0.18.1.0+
        • Configuration
        • Event Specification
      • Web Console Publishing | 0.18.1.2+
      • Logs
      • Configuration Files
      • Restart
    • Web Console Settings
      • Server Settings
      • Live Sources (Ingress Protocols) Settings
      • ABR and Transcoding Settings
      • Streaming (Egress Protocols) Settings
      • TLS Encryption Settings | 0.14.0.0+
      • Access Control Settings
      • Thumbnail Settings | 0.15.7.0+
      • Recording Settings | 0.16.5.0+
      • Push Publishing Settings | 0.15.14.0+
      • REST API Settings | 0.11.0.0+
      • Alert Settings | 0.15.11.0+
  • CDN Compatibility
    • Origin Server Redundancy
    • Origin Cache Control
  • Protection
    • RTMP Authentication | 0.17.2.0+
    • Proxy Protocol Integration | 0.16.6.2+
    • Digital Rights Management (DRM)
      • OvenMediaEngine Configuration for DRM | 0.16.0.0+
      • PallyCon DRM Configuration | 0.16.4.0+
  • Performance
    • Hardware-Accelerated Video Encoding | 0.16.4.0+
  • Event Insertion
    • Insert SEI into H.264 (AVC) Streams | v0.18.0.0+
    • Insert AMF0 messages in RTMP Push Publisher | 0.17.3.0+
  • Monetization
    • Insert Ad Markers (EXT-X-CUE-OUT/EXT-X-CUE-IN) | v0.17.3.0+
    • Insert onCuePoint messages into YouTube Live | 0.17.3.0+
  • Advanced Management
    • Generating Audio PTS | 0.17.2.3+
    • API Storage | 0.17.0.0+
    • Restart Application | 0.17.0.0+
    • Record Delivery | 0.16.5.0+
    • Add Delay to the Stream
    • Control Default Playlist Creation
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  1. Advanced Management

Generating Audio PTS | 0.17.2.3+

Based on OvenMediaEngine Enterprise Team research, when you play audio in an iOS environment, Audio dropouts may occur under the following conditions:

  • Receiving an Audio stream via the RTMP protocol.

  • Transmitting Audio only without video.

  • Using the original Audio without encoding, like passthrough.

  • Playing using HLS on iOS.

We found that these issues are related to the timebase of RTMP. To resolve this, you need to configure the system to use the Presentation Timestamp (PTS) calculated and generated by OvenMediaEngine instead of the PTS provided by RTMP.

Generating Audio PTS Settings

You can enable the Generating Audio PTS feature by activating the <GenerateAudioPTS> value to true in the Server.xml under <Providers><RTMP>, as shown below:

<?xml version="1.0" encoding="UTF-8"?>
<Server version="8">
  ...
  <VirtualHosts>
    <VirtualHost>
      <Applications>
        <Application>
          <Providers>
            ...
            <RTMP>
              <GenerateAudioPTS>true</GenerateAudioPTS>
            </RTMP>
          </Providers>
        </Application>
      </Applications>
    </VirtualHost>
  </VirtualHosts>
</Server>
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Last updated 10 days ago