VIDEO_APPLICATION_SCENARIO_TYPE

The video application scenarios.

Since
v4.2.0

Enumerator

APPLICATION_SCENARIO_GENERAL
0: (Default) The general scenario.
APPLICATION_SCENARIO_MEETING

1: The meeting scenario.

APPLICATION_SCENARIO_MEETING (1) is suitable for meeting scenarios. The SDK automatically enables the following strategies:
  • In meeting scenarios where low-quality video streams are required to have a high bitrate, the SDK automatically enables multiple technologies used to deal with network congestions, to enhance the performance of the low-quality streams and to ensure the smooth reception by subscribers.
  • The SDK monitors the number of subscribers to the high-quality video stream in real time and dynamically adjusts its configuration based on the number of subscribers.
    • If nobody subscribers to the high-quality stream, the SDK automatically reduces its bitrate and frame rate to save upstream bandwidth.
    • If someone subscribes to the high-quality stream, the SDK resets the high-quality stream to the VideoEncoderConfiguration configuration used in the most recent calling of setVideoEncoderConfiguration. If no configuration has been set by the user previously, the following values are used:
      • Resolution: (Windows and macOS) 1280 × 720; (Android and iOS) 960 × 540
      • Frame rate: 15 fps
      • Bitrate: (Windows and macOS) 1600 Kbps; (Android and iOS) 1000 Kbps
  • The SDK monitors the number of subscribers to the low-quality video stream in real time and dynamically enables or disables it based on the number of subscribers.
    Note: If the user has called setDualStreamMode [2/2] to set that never send low-quality video stream (DISABLE_SIMULCAST_STREAM), the dynamic adjustment of the low-quality stream in meeting scenarios will not take effect.
    • If nobody subscribes to the low-quality stream, the SDK automatically disables it to save upstream bandwidth.
    • If someone subscribes to the low-quality stream, the SDK enables the low-quality stream and resets it to the SimulcastStreamConfig configuration used in the most recent calling of setDualStreamMode [2/2]. If no configuration has been set by the user previously, the following values are used:
      • Resolution: 480 × 272
      • Frame rate: 15 fps
      • Bitrate: 500 Kbps
APPLICATION_SCENARIO_1V1

2: 1v1 video call scenario.

APPLICATION_SCENARIO_1V1 (2) is suitable for 1v1 video call scenarios. To meet the requirements for low latency and high-quality video in this scenario, the SDK optimizes its strategies, improving performance in terms of video quality, first frame rendering, latency on mid-to-low-end devices, and smoothness under weak network conditions.