How to set BGM in audio and video terminal SDK?

To set background music (BGM) in an audio and video terminal SDK, you typically need to follow these steps:

1. Initialize the SDK: Ensure the audio and video SDK is properly initialized in your application.

2. Load the BGM File: Load the background music file (e.g., MP3, WAV) into the SDK. This is usually done using a function provided by the SDK to load audio resources.

3. Set the BGM as a Audio Track: Add the loaded BGM as an audio track in the SDK. This may involve specifying the audio track type as background music.

4. Adjust Volume and Mixing: Configure the volume of the BGM and how it mixes with other audio sources (e.g., user microphone input). Most SDKs provide functions to control the volume levels of different audio tracks.

5. Start Playback: Start the playback of the BGM along with the audio and video stream.

Example:

Here’s a simplified example using a hypothetical SDK:

// Step 1: Initialize the SDK
AudioVideoSDK::initialize();

// Step 2: Load the BGM file
AudioTrack bgmTrack = AudioVideoSDK::loadAudioTrack("path/to/bgm.mp3");

// Step 3: Set the BGM as a background music track
AudioVideoSDK::setAudioTrackType(bgmTrack, AudioTrackType::BACKGROUND_MUSIC);

// Step 4: Adjust volume and mixing
AudioVideoSDK::setVolume(bgmTrack, 0.5); // Set BGM volume to 50%
AudioVideoSDK::enableAudioMixing(true); // Enable mixing of BGM with other audio

// Step 5: Start playback
AudioVideoSDK::startPlayback();

Using Tencent Cloud Services:

If you are building an audio and video application and need a robust SDK, consider using Tencent Cloud's Interactive Live Video SDK or Tencent Cloud's TRTC (Tencent Real-Time Communication) SDK. These SDKs provide comprehensive features for audio and video communication, including background music integration, audio mixing, and real-time streaming.

For example, with TRTC SDK, you can use the setBGM and startPlayBGM functions to easily integrate and control background music in your application.

// Example using TRTC SDK
trtc::ITRTCCloud* trtcCloud = trtc::createTRTCClient(context);
trtcCloud->setBGM("path/to/bgm.mp3");
trtcCloud->startPlayBGM();

These services are designed to simplify the development process and ensure high-quality audio and video experiences.