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:
Remote communication error: Connection reset by peer.

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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