Explore Real-time
Face Effects for Live Streaming

// Take using the custom video pre-processing method as an example.
// Obtain the raw video data with callback.
// Set the callback.
express.setCustomVideoProcessHandler(new IZegoCustomVideoProcessHandler() {
    ...

    // Receive texture from ZegoExpressEngine
    @Override
    public void onCapturedUnprocessedTextureData(int textureID, int width, int height, long referenceTimeMillisecond, ZegoPublishChannel channel) {

        ZegoEffectsVideoFrameParam param = new ZegoEffectsVideoFrameParam();
        param.format = ZegoEffectsVideoFrameFormat.BGRA32;
        param.width = width;
        param.height = height;

        // Process buffer by ZegoEffects
        int processedTextureID = effects.processTexture(textureID, param);

        // Send processed texture to ZegoExpressEngine
        express.sendCustomVideoProcessedTextureData(processedTextureID, width, height, referenceTimeMillisecond);
    }
} 

// Take using the custom video pre-processing method as an example.
// Obtain the raw video data through a callback.
- (void)onCapturedUnprocessedCVPixelBuffer:(CVPixelBufferRef)buffer timestamp:(CMTime)timestamp channel:(ZegoPublishChannel)channel {
    ...
    // Custom video pre-processing: use the Effects SDK here.
    [self.effects processImageBuffer:buffer];

    // Send the processed buffer to the Express SDK.
    [[ZegoExpressEngine sharedEngine] sendCustomVideoProcessedCVPixelBuffer:output timestamp:timestamp channel:channel];
    ...
}