diff options
Diffstat (limited to 'contrib/ffmpeg/libavformat/os_support.c')
| -rw-r--r-- | contrib/ffmpeg/libavformat/os_support.c | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/contrib/ffmpeg/libavformat/os_support.c b/contrib/ffmpeg/libavformat/os_support.c new file mode 100644 index 000000000..cc109d596 --- /dev/null +++ b/contrib/ffmpeg/libavformat/os_support.c @@ -0,0 +1,155 @@ +/* + * Various utilities for ffmpeg system + * Copyright (c) 2000, 2001, 2002 Fabrice Bellard + * copyright (c) 2002 Francois Revol + * + * 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 "avformat.h" +#include <unistd.h> +#include <fcntl.h> +#include "os_support.h" + +#ifdef CONFIG_NETWORK +#ifndef HAVE_POLL_H +#ifdef HAVE_WINSOCK2_H +#include <winsock2.h> +#elif defined (HAVE_SYS_SELECT_H) +#include <sys/select.h> +#endif +#endif + +#include "network.h" + +#if !defined(HAVE_INET_ATON) +#include <stdlib.h> +#include <strings.h> + +int inet_aton (const char * str, struct in_addr * add) +{ + unsigned int add1 = 0, add2 = 0, add3 = 0, add4 = 0; + + if (sscanf(str, "%d.%d.%d.%d", &add1, &add2, &add3, &add4) != 4) + return 0; + + if (!add1 || (add1|add2|add3|add4) > 255) return 0; + + add->s_addr=(add4<<24)+(add3<<16)+(add2<<8)+add1; + + return 1; +} +#endif /* !defined(HAVE_INET_ATON) */ + +/* resolve host with also IP address parsing */ +int resolve_host(struct in_addr *sin_addr, const char *hostname) +{ + struct hostent *hp; + + if (!inet_aton(hostname, sin_addr)) { + hp = gethostbyname(hostname); + if (!hp) + return -1; + memcpy(sin_addr, hp->h_addr, sizeof(struct in_addr)); + } + return 0; +} + +int ff_socket_nonblock(int socket, int enable) +{ +#ifdef HAVE_WINSOCK2_H + return ioctlsocket(socket, FIONBIO, &enable); +#else + if (enable) + return fcntl(socket, F_SETFL, fcntl(socket, F_GETFL) | O_NONBLOCK); + else + return fcntl(socket, F_SETFL, fcntl(socket, F_GETFL) & ~O_NONBLOCK); +#endif +} +#endif /* CONFIG_NETWORK */ + +#ifdef CONFIG_FFSERVER +#ifndef HAVE_POLL_H +int poll(struct pollfd *fds, nfds_t numfds, int timeout) +{ + fd_set read_set; + fd_set write_set; + fd_set exception_set; + nfds_t i; + int n; + int rc; + +#ifdef HAVE_WINSOCK2_H + if (numfds >= FD_SETSIZE) { + errno = EINVAL; + return -1; + } +#endif + + FD_ZERO(&read_set); + FD_ZERO(&write_set); + FD_ZERO(&exception_set); + + n = -1; + for(i = 0; i < numfds; i++) { + if (fds[i].fd < 0) + continue; +#ifndef HAVE_WINSOCK2_H + if (fds[i].fd >= FD_SETSIZE) { + errno = EINVAL; + return -1; + } +#endif + + if (fds[i].events & POLLIN) FD_SET(fds[i].fd, &read_set); + if (fds[i].events & POLLOUT) FD_SET(fds[i].fd, &write_set); + if (fds[i].events & POLLERR) FD_SET(fds[i].fd, &exception_set); + + if (fds[i].fd > n) + n = fds[i].fd; + }; + + if (n == -1) + /* Hey!? Nothing to poll, in fact!!! */ + return 0; + + if (timeout < 0) + rc = select(n+1, &read_set, &write_set, &exception_set, NULL); + else { + struct timeval tv; + + tv.tv_sec = timeout / 1000; + tv.tv_usec = 1000 * (timeout % 1000); + rc = select(n+1, &read_set, &write_set, &exception_set, &tv); + }; + + if (rc < 0) + return rc; + + for(i = 0; i < (nfds_t) n; i++) { + fds[i].revents = 0; + + if (FD_ISSET(fds[i].fd, &read_set)) fds[i].revents |= POLLIN; + if (FD_ISSET(fds[i].fd, &write_set)) fds[i].revents |= POLLOUT; + if (FD_ISSET(fds[i].fd, &exception_set)) fds[i].revents |= POLLERR; + }; + + return rc; +} +#endif /* HAVE_POLL_H */ +#endif /* CONFIG_FFSERVER */ + |