Subversion Repositories Kolibri OS

/*

 * 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 

#include "libavutil/mem.h"

#include "libavutil/bprint.h"

#if HAVE_UNISTD_H

#include              /* 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 c, *src_buf, *recv_buf;

    int recv_buf_size, ret;

    void *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;

    }

    ctx = zmq_ctx_new();

    if (!ctx) {

        av_log(NULL, AV_LOG_ERROR,

               "Could not create ZMQ context: %s\n", zmq_strerror(errno));

        return 1;

    }

    socket = zmq_socket(ctx, ZMQ_REQ);

    if (!socket) {

        av_log(ctx, 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(ctx, 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(ctx, 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(ctx, 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(ctx, 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);

    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(ctx);

    return ret;

}