private String startLivePreview(
final LiveCamera liveCamera, final Integer width, final Integer height) {
synchronized (mLockObj) {
if (mServer == null) {
mServer = new MixedReplaceMediaServer();
mServer.setServerName("Live Preview Server");
mServer.start();
}
final String segment = SEGMENT_LIVE_PREVIEW;
if (mLivePreviewTask == null) {
mLivePreviewTask =
new LivePreviewTask(liveCamera) {
@Override
protected void onFrame(final byte[] frame) {
byte[] b;
if (width != null || height != null) {
b = resizeFrame(frame, width, height);
} else {
b = frame;
}
offerFrame(segment, b);
}
};
mExecutor.execute(mLivePreviewTask);
}
return mServer.getUrl() + "/" + segment;
}
}
private void offerFrame(final String segment, final byte[] frame) {
synchronized (mLockObj) {
if (mServer != null) {
mServer.offerMedia(segment, frame);
}
}
}
private void stopLivePreview() {
synchronized (mLockObj) {
if (mLivePreviewTask != null) {
mLivePreviewTask.stop();
mLivePreviewTask = null;
}
if (mServer != null) {
mServer.stop();
mServer = null;
}
}
}