From 22f1fce330059ef8a383cf327a023d6a9da5ad3e Mon Sep 17 00:00:00 2001
From: "Matthias P. Braendli" <matthias.braendli@mpb.li>
Date: Mon, 15 Feb 2016 02:44:20 +0100
Subject: Include toolame-dab as library

---
 libtoolame-dab/zmqoutput.c | 120 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 120 insertions(+)
 create mode 100644 libtoolame-dab/zmqoutput.c

(limited to 'libtoolame-dab/zmqoutput.c')

diff --git a/libtoolame-dab/zmqoutput.c b/libtoolame-dab/zmqoutput.c
new file mode 100644
index 0000000..03007cc
--- /dev/null
+++ b/libtoolame-dab/zmqoutput.c
@@ -0,0 +1,120 @@
+#include "zmqoutput.h"
+#include <zmq.h>
+#include <stdlib.h>
+#include <string.h>
+#include "common.h"
+
+static void *zmq_context;
+
+// Buffer containing at maximum one frame
+unsigned char* zmqbuf;
+
+// The current data length (smaller than allocated
+// buffer size)
+size_t zmqbuf_len;
+
+static int zmq_peak_left = 0;
+static int zmq_peak_right = 0;
+
+void zmqoutput_set_peaks(int left, int right)
+{
+    zmq_peak_left = left;
+    zmq_peak_right = right;
+}
+
+int zmqoutput_open(Bit_stream_struc *bs, const char* uri_list)
+{
+    zmq_context = zmq_ctx_new();
+    bs->zmq_sock = zmq_socket(zmq_context, ZMQ_PUB);
+    if (bs->zmq_sock == NULL) {
+        fprintf(stderr, "Error occurred during zmq_socket: %s\n",
+                zmq_strerror(errno));
+        return -1;
+    }
+
+    char* uris = strdup(uri_list);
+    char* saveptr = NULL;
+
+    for (; ; uris = NULL) {
+        char* uri = strtok_r(uris, ";", &saveptr);
+
+
+        if (uri) {
+            fprintf(stderr, "Connecting ZMQ to %s\n", uri);
+            if (zmq_connect(bs->zmq_sock, uri) != 0) {
+                fprintf(stderr, "Error occurred during zmq_connect: %s\n",
+                        zmq_strerror(errno));
+                free(uris);
+                return -1;
+            }
+        }
+        else {
+            break;
+        }
+    }
+
+    free(uris);
+
+    zmqbuf = (unsigned char*)malloc(bs->zmq_framesize);
+    if (zmqbuf == NULL) {
+        fprintf(stderr, "Unable to allocate ZMQ buffer\n");
+        exit(0);
+    }
+    zmqbuf_len = 0;
+    return 0;
+}
+
+int zmqoutput_write_byte(Bit_stream_struc *bs, unsigned char data)
+{
+    zmqbuf[zmqbuf_len++] = data;
+
+    if (zmqbuf_len == bs->zmq_framesize) {
+
+        int frame_length = sizeof(struct zmq_frame_header) + zmqbuf_len;
+
+        struct zmq_frame_header* header =
+            malloc(frame_length);
+
+        uint8_t* txframe = ((uint8_t*)header) + sizeof(struct zmq_frame_header);
+
+        header->version          = 1;
+        header->encoder          = ZMQ_ENCODER_TOOLAME;
+        header->datasize         = zmqbuf_len;
+        header->audiolevel_left  = zmq_peak_left;
+        header->audiolevel_right = zmq_peak_right;
+
+        memcpy(txframe, zmqbuf, zmqbuf_len);
+
+        int send_error = zmq_send(bs->zmq_sock, header, frame_length,
+                ZMQ_DONTWAIT);
+
+        free(header);
+        header = NULL;
+
+        if (send_error < 0) {
+            fprintf(stderr, "ZeroMQ send failed! %s\n", zmq_strerror(errno));
+        }
+
+        zmqbuf_len = 0;
+
+        return bs->zmq_framesize;
+    }
+
+    return 0;
+
+}
+
+void zmqoutput_close(Bit_stream_struc *bs)
+{
+    if (bs->zmq_sock)
+        zmq_close(bs->zmq_sock);
+
+    if (zmq_context)
+        zmq_ctx_destroy(zmq_context);
+
+    if (zmqbuf) {
+        free(zmqbuf);
+        zmqbuf = NULL;
+    }
+}
+
-- 
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