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- /*
- * Copyright (c) 2013 Stefano Sabatini
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
- #include "config.h"
- #include <zmq.h>
- #include "libavutil/mem.h"
- #include "libavutil/bprint.h"
- #if HAVE_UNISTD_H
- #include <unistd.h> /* getopt */
- #endif
- #if !HAVE_GETOPT
- #include "compat/getopt.c"
- #endif
- /**
- * @file
- * zmq message sender example, meant to be used with the zmq filters
- */
- static void usage(void)
- {
- printf("send message to ZMQ recipient, to use with the zmq filters\n");
- printf("usage: zmqsend [OPTIONS]\n");
- printf("\n"
- "Options:\n"
- "-b ADDRESS set bind address\n"
- "-h print this help\n"
- "-i INFILE set INFILE as input file, stdin if omitted\n");
- }
- int main(int argc, char **argv)
- {
- AVBPrint src;
- char *src_buf, *recv_buf;
- int c;
- int recv_buf_size, ret = 0;
- void *zmq_ctx, *socket;
- const char *bind_address = "tcp://localhost:5555";
- const char *infilename = NULL;
- FILE *infile = NULL;
- zmq_msg_t msg;
- while ((c = getopt(argc, argv, "b:hi:")) != -1) {
- switch (c) {
- case 'b':
- bind_address = optarg;
- break;
- case 'h':
- usage();
- return 0;
- case 'i':
- infilename = optarg;
- break;
- case '?':
- return 1;
- }
- }
- if (!infilename || !strcmp(infilename, "-")) {
- infilename = "stdin";
- infile = stdin;
- } else {
- infile = fopen(infilename, "r");
- }
- if (!infile) {
- av_log(NULL, AV_LOG_ERROR,
- "Impossible to open input file '%s': %s\n", infilename, strerror(errno));
- return 1;
- }
- zmq_ctx = zmq_ctx_new();
- if (!zmq_ctx) {
- av_log(NULL, AV_LOG_ERROR,
- "Could not create ZMQ context: %s\n", zmq_strerror(errno));
- return 1;
- }
- socket = zmq_socket(zmq_ctx, ZMQ_REQ);
- if (!socket) {
- av_log(NULL, AV_LOG_ERROR,
- "Could not create ZMQ socket: %s\n", zmq_strerror(errno));
- ret = 1;
- goto end;
- }
- if (zmq_connect(socket, bind_address) == -1) {
- av_log(NULL, AV_LOG_ERROR, "Could not bind ZMQ responder to address '%s': %s\n",
- bind_address, zmq_strerror(errno));
- ret = 1;
- goto end;
- }
- /* grab the input and store it in src */
- av_bprint_init(&src, 1, AV_BPRINT_SIZE_UNLIMITED);
- while ((c = fgetc(infile)) != EOF)
- av_bprint_chars(&src, c, 1);
- av_bprint_chars(&src, 0, 1);
- if (!av_bprint_is_complete(&src)) {
- av_log(NULL, AV_LOG_ERROR, "Could not allocate a buffer for the source string\n");
- av_bprint_finalize(&src, NULL);
- ret = 1;
- goto end;
- }
- av_bprint_finalize(&src, &src_buf);
- if (zmq_send(socket, src_buf, strlen(src_buf), 0) == -1) {
- av_log(NULL, AV_LOG_ERROR, "Could not send message: %s\n", zmq_strerror(errno));
- ret = 1;
- goto end;
- }
- if (zmq_msg_init(&msg) == -1) {
- av_log(NULL, AV_LOG_ERROR,
- "Could not initialize receiving message: %s\n", zmq_strerror(errno));
- ret = 1;
- goto end;
- }
- if (zmq_msg_recv(&msg, socket, 0) == -1) {
- av_log(NULL, AV_LOG_ERROR,
- "Could not receive message: %s\n", zmq_strerror(errno));
- zmq_msg_close(&msg);
- ret = 1;
- goto end;
- }
- recv_buf_size = zmq_msg_size(&msg) + 1;
- recv_buf = av_malloc(recv_buf_size);
- if (!recv_buf) {
- av_log(NULL, AV_LOG_ERROR,
- "Could not allocate receiving message buffer\n");
- zmq_msg_close(&msg);
- ret = 1;
- goto end;
- }
- memcpy(recv_buf, zmq_msg_data(&msg), recv_buf_size - 1);
- recv_buf[recv_buf_size-1] = 0;
- printf("%s\n", recv_buf);
- zmq_msg_close(&msg);
- av_free(recv_buf);
- end:
- zmq_close(socket);
- zmq_ctx_destroy(zmq_ctx);
- return ret;
- }
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