VIDEO_APPLICATION_SCENARIO_TYPE

The video application scenarios.

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) This is applicable to the one to one live scenario. 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.

APPLICATION_SCENARIO_LIVESHOW

3. Live show scenario.

APPLICATION_SCENARIO_LIVESHOW(3) This is applicable to the show room scenario. In this scenario, fast video rendering and high image quality are crucial. The SDK implements several performance optimizations, including automatically enabling accelerated audio and video frame rendering to minimize first-frame latency (no need to call EnableInstantMediaRendering), and B-frame encoding to achieve better image quality and bandwidth efficiency. The SDK also provides enhanced video quality and smooth playback, even in poor network conditions or on lower-end devices.