main.cpp

#include <node.h>
#include <v8.h>

using namespace v8;

char* buf;
const unsigned size = 400*400;

void GetVideoFrame(const v8::FunctionCallbackInfo<Value>& args)
{

    Isolate* isolate = Isolate::GetCurrent();
    HandleScope scope(isolate);

    Local<Object> global = isolate->GetCurrentContext()->Global();
    
    Handle<Value> abv = global->Get(v8::String::NewFromUtf8(isolate, "Uint8Array", v8::String::kInternalizedString));
    Handle<Value> argv[] = { Integer::NewFromUnsigned(isolate, size) };
    Handle<Object> target = Handle<Function>::Cast(abv)->NewInstance(1, argv);

    buf = static_cast<char*>(target->GetIndexedPropertiesExternalArrayData());

    for( unsigned i = 0; i < size / 2; ++i ) {
        *(buf + i) = ( rand() % 256 );
    }

    args.GetReturnValue().Set( target );
}

void UpdateVideoFrame(const v8::FunctionCallbackInfo<Value>& args)
{
    for( unsigned i = 0; i < size / 2; ++i ) {
        *(buf + i) = ( rand() % 256 );
    }
}

void Init(Handle<Object> exports) {
	NODE_SET_METHOD(exports, "GetVideoFrame", GetVideoFrame);
    NODE_SET_METHOD(exports, "UpdateVideoFrame", UpdateVideoFrame);

}

NODE_MODULE(WC, Init)