2 * Copyright (c) 2013 Stefano Sabatini
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 #include "libavutil/mem.h"
26 #include "libavutil/bprint.h"
29 #include <unistd.h> /* getopt */
33 #include "compat/getopt.c"
38 * zmq message sender example, meant to be used with the zmq filters
41 static void usage(void)
43 printf("send message to ZMQ recipient, to use with the zmq filters\n");
44 printf("usage: zmqsend [OPTIONS]\n");
47 "-b ADDRESS set bind address\n"
48 "-h print this help\n"
49 "-i INFILE set INFILE as input file, stdin if omitted\n");
52 int main(int argc, char **argv)
55 char c, *src_buf, *recv_buf;
56 int recv_buf_size, ret;
57 void *zmq_ctx, *socket;
58 const char *bind_address = "tcp://localhost:5555";
59 const char *infilename = NULL;
63 while ((c = getopt(argc, argv, "b:hi:")) != -1) {
66 bind_address = optarg;
79 if (!infilename || !strcmp(infilename, "-")) {
83 infile = fopen(infilename, "r");
86 av_log(NULL, AV_LOG_ERROR,
87 "Impossible to open input file '%s': %s\n", infilename, strerror(errno));
91 zmq_ctx = zmq_ctx_new();
93 av_log(NULL, AV_LOG_ERROR,
94 "Could not create ZMQ context: %s\n", zmq_strerror(errno));
98 socket = zmq_socket(zmq_ctx, ZMQ_REQ);
100 av_log(NULL, AV_LOG_ERROR,
101 "Could not create ZMQ socket: %s\n", zmq_strerror(errno));
106 if (zmq_connect(socket, bind_address) == -1) {
107 av_log(NULL, AV_LOG_ERROR, "Could not bind ZMQ responder to address '%s': %s\n",
108 bind_address, zmq_strerror(errno));
113 /* grab the input and store it in src */
114 av_bprint_init(&src, 1, AV_BPRINT_SIZE_UNLIMITED);
115 while ((c = fgetc(infile)) != EOF)
116 av_bprint_chars(&src, c, 1);
117 av_bprint_chars(&src, 0, 1);
119 if (!av_bprint_is_complete(&src)) {
120 av_log(NULL, AV_LOG_ERROR, "Could not allocate a buffer for the source string\n");
121 av_bprint_finalize(&src, NULL);
125 av_bprint_finalize(&src, &src_buf);
127 if (zmq_send(socket, src_buf, strlen(src_buf), 0) == -1) {
128 av_log(NULL, AV_LOG_ERROR, "Could not send message: %s\n", zmq_strerror(errno));
133 if (zmq_msg_init(&msg) == -1) {
134 av_log(NULL, AV_LOG_ERROR,
135 "Could not initialize receiving message: %s\n", zmq_strerror(errno));
140 if (zmq_msg_recv(&msg, socket, 0) == -1) {
141 av_log(NULL, AV_LOG_ERROR,
142 "Could not receive message: %s\n", zmq_strerror(errno));
148 recv_buf_size = zmq_msg_size(&msg) + 1;
149 recv_buf = av_malloc(recv_buf_size);
151 av_log(NULL, AV_LOG_ERROR,
152 "Could not allocate receiving message buffer\n");
157 memcpy(recv_buf, zmq_msg_data(&msg), recv_buf_size);
158 recv_buf[recv_buf_size-1] = 0;
159 printf("%s\n", recv_buf);
165 zmq_ctx_destroy(zmq_ctx);