Record processed video on Android

Prerequisites

• A working Android quickstart
• The active NosmaiPreviewView
• A writable absolute .mp4 output path

Start recording

NosmaiSDK.startRecording(previewView, outputPath,
    new NosmaiSDK.RecordingCallback() {
        @Override
        public void onStarted(boolean success, String error) {
            if (!success) {
                Log.e("Nosmai", "Recording did not start: " + error);
            }
        }
    });

Disable duplicate start requests until onStarted returns.

Stop and finalize the MP4

NosmaiSDK.stopRecording(new NosmaiSDK.RecordingCallback() {
    @Override
    public void onCompleted(String path, boolean success, String error) {
        if (success) {
            Log.i("Nosmai", "Video ready at " + path);
        } else {
            Log.e("Nosmai", "Recording failed: " + error);
        }
    }
});

Wait for onCompleted before opening, sharing, or scanning the file.

Lifecycle rule

Stop and finalize recording before switching camera, pausing the activity, or destroying the preview. On measured lower-tier devices the SDK can reduce only the recording resolution to protect frame rate; the live preview remains at its configured size.

Verify it worked

Record a short clip with a visible effect, wait for onCompleted, and play the returned MP4. Confirm its orientation, effect output, video duration, and audio.

Common errors

Next steps

• Stream processed frames with Agora on Android
• Review limits and performance

References

• Android platform guide
• Troubleshooting