player_util.c

完整的RTP RTSP代码库

/*
 * The contents of this file are subject to the Mozilla Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/MPL/
 * 
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 * 
 * The Original Code is MPEG4IP.
 * 
 * The Initial Developer of the Original Code is Cisco Systems Inc.
 * Portions created by Cisco Systems Inc. are
 * Copyright (C) Cisco Systems Inc. 2000, 2001.  All Rights Reserved.
 * 
 * Contributor(s): 
 *              Bill May        [e-mail]
 */
/*
 * player_util.c - utility routines for output
 */

#include "mpeg4ip.h"
#ifndef _WIN32
#include <time.h>
#include <sys/time.h>
#include <unistd.h>
#include <stdarg.h>
#include <sys/ioctl.h>
#include <net/if.h>
#ifdef sun
#include <sys/sockio.h>
#endif
#endif

#include "player_util.h"

#if _WIN32
#include "mpeg4ip_sdl_includes.h"

SDL_mutex *outex;
static int initialized = 0;
static void init_local_mutex (void)
{
	outex = SDL_CreateMutex();
	initialized = 1;
}
static void lock_mutex(void)
{
	SDL_mutexP(outex);
} 
static void unlock_mutex(void)
{
	SDL_mutexV(outex);
}
#endif


void player_error_message (const char *fmt, ...)
{
  va_list ap;

  if (get_global_loglevel() <= LOG_ERR) {
    va_start(ap, fmt);
    library_message(LOG_ERR, "my_player", fmt, ap);
    va_end(ap);
  }
}

void player_debug_message (const char *fmt, ...)
{
  va_list ap;

  if (get_global_loglevel() <= LOG_DEBUG) {
    va_start(ap, fmt);
    library_message(LOG_DEBUG, "my_player", fmt, ap);
    va_end(ap);
  }
}



int getIpAddressFromInterface (const char *ifname,
			       struct in_addr *retval)
{
  int ret = -1;
#ifndef _WIN32
  int fd;
  fd = socket(AF_INET, SOCK_DGRAM, 0);
  if (fd > 0) {
    struct ifreq ifr;
    strcpy(ifr.ifr_name, ifname);
    ifr.ifr_addr.sa_family = AF_INET;
    if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
      *retval = ((struct sockaddr_in *)(&ifr.ifr_addr))->sin_addr;
      ret = 0;
    } 
    closesocket(fd);
  }
#endif
  return ret;
}

char *convert_number (char *transport, uint32_t *value)
{
  *value = 0;
  while (isdigit(*transport)) {
    *value *= 10;
    *value += *transport - '0';
    transport++;
  }
  return (transport);
}

char *convert_hex (char *transport, uint32_t *value)
{
  *value = 0;
  while (isxdigit(*transport)) {
    *value *= 16;
    if (isdigit(*transport))
      *value += *transport - '0';
    else
      *value += tolower(*transport) - 'a' + 10;
    transport++;
  }
  return (transport);
}

/* end file player_util.c */