解决vlc-android播放http视频退出问题
之前用vlc-android播放http视频,程序就自动退出了,尝试用ndk-gdb调试,但是一调试,就报
| /home/administrator/code/vlc-android/extras/package/android/vlc-android/obj/local/armeabi/gdb.setup:4: Error in sourced command file: 到网上也没找到解决方案,最后只用采用在c代码中加入调试打印语句的方式,看究竟是哪里报错,最后跟踪到是调用poll函数引起, 最后采在ffmpeg源码中找到一个poll函数的源码,修改后加入到vlc-android中
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;
#if 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; #if !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 < numfds; 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; }
测试播放网上的http视频,视频地址:http://forum.ea3w.com/coll_ea3w/attach/2008_10/12231788691.wmv
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