Dynamically allocate the RTSP response buffer

src/Limelight-internal.h

@@ -55,6 +55,7 @@ extern int AudioPacketDuration;
 int serviceEnetHost(ENetHost* client, ENetEvent* event, enet_uint32 timeoutMs);
 int extractVersionQuadFromString(const char* string, int* quad);
 int isReferenceFrameInvalidationEnabled(void);
+void* extendBuffer(void* ptr, size_t newSize);
 
 void fixupMissingCallbacks(PDECODER_RENDERER_CALLBACKS* drCallbacks, PAUDIO_RENDERER_CALLBACKS* arCallbacks,
     PCONNECTION_LISTENER_CALLBACKS* clCallbacks);