Add ZeroMQ dabplus input

For use in combination with fdk-aac-dabplus-zmq

1 files changed, 82 insertions, 0 deletions

diff --git a/src/dabInputZmq.h b/src/dabInputZmq.h
new file mode 100644
index 0000000..17a4954
--- /dev/null
+++ b/src/dabInputZmq.h
@@ -0,0 +1,82 @@
+/*
+   Copyright (C) 2009 Her Majesty the Queen in Right of Canada (Communications
+   Research Center Canada)
+
+   Copyright (C) 2013 Matthias P. Braendli
+   http://mpb.li
+
+   ZeroMQ input. see www.zeromq.org for more info
+
+   From the ZeroMQ manpage 'zmq':
+
+       The 0MQ lightweight messaging kernel is a library which extends the standard
+       socket interfaces with features traditionally provided by specialised
+       messaging middleware products. 0MQ sockets provide an abstraction of
+       asynchronous message queues, multiple messaging patterns, message filtering
+       (subscriptions), seamless access to multiple transport protocols and more.
+   */
+/*
+   This file is part of CRC-DabMux.
+
+   It defines a ZeroMQ input for dabplus data.
+
+   CRC-DabMux is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as
+   published by the Free Software Foundation, either version 3 of the
+   License, or (at your option) any later version.
+
+   CRC-DabMux is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with CRC-DabMux.  If not, see <http://www.gnu.org/licenses/>.
+   */
+
+#ifndef DAB_INPUT_ZMQ_H
+#define DAB_INPUT_ZMQ_H
+
+#ifdef HAVE_INPUT_ZEROMQ
+
+#ifdef HAVE_CONFIG_H
+#   include "config.h"
+#endif
+#include <zmq.h>
+#include <list>
+#include <string>
+#include "dabInput.h"
+#include "dabInputFifo.h"
+
+// Number of frames to prebuffer
+#define INPUT_ZMQ_PREBUFFERING 10
+
+// Maximum frame_buffer size in number of elements
+#define INPUT_ZMQ_MAX_BUFFER_SIZE 200
+
+
+extern struct dabInputOperations dabInputZmqOperations;
+
+struct dabInputZmqData {
+    void* zmq_context;
+    void* zmq_sock;
+    std::list<char*> frame_buffer; //stores elements of type char[<framesize>]
+    dabInputFifoStats stats;
+    int prebuffering;
+    std::string uri;
+};
+
+
+int dabInputZmqInit(void** args);
+int dabInputZmqOpen(void* args, const char* inputUri);
+int dabInputZmqReadFrame(dabInputOperations* ops, void* args, void* buffer, int size);
+int dabInputZmqClose(void* args);
+int dabInputZmqClean(void** args);
+
+// Get new message from ZeroMQ
+int dabInputZmqReadFromSocket(dabInputZmqData* input, int framesize);
+
+
+#endif // HAVE_INPUT_ZMQ
+
+#endif // DAB_INPUT_ZMQ_H