Figured it out - below is a sample to add a custom User-Agent in any HTTP request using PreprocessHttpRequestCallback in Java. customValue should be replaced with the preferred User-Agent string.
Note: there was a bug in our old Android player SDK (< 3.17.0) which was the User-Agent overwrite was ignored as described in our release note (Bitmovin Docs - Player Android / AndroidTV Release 3.17.0). So ensure to use version 3.17.0 or later.
NetworkConfig networkConfig = new NetworkConfig();
PreprocessHttpRequestCallback preprocessHttpRequestCallback = new PreprocessHttpRequestCallback() {
@Nullable
@Override
public Future<HttpRequest> preprocessHttpRequest(HttpRequestType httpRequestType, HttpRequest httpRequest) {
ExecutorService executorService = Executors.newSingleThreadExecutor();
Callable<HttpRequest> callable = () -> {
HashMap<String, String> headers = new HashMap<>();
headers.put("User-Agent", "customValue");
httpRequest.setHeaders(headers);
return httpRequest;
};
Future<HttpRequest> future = executorService.submit(callable);
return future;
}
};
networkConfig.setPreprocessHttpRequestCallback(preprocessHttpRequestCallback);
player.getConfig().setNetworkConfig(networkConfig);