ffmpeg hls拉流超时问题
问题,拉流hls报以下错误
[hls @ 000001bc59476000] Opening 'http://39.135.138.59:18890/PLTV/88888910/224/3221225644/1647845325-1-1644624937.hls.ts?ssr_hostlv1=39.134.116.2:18890&ssr_host=117.169.122.137:8080' for reading
[hls @ 000001bc59476000] Failed to open segment 1644624937 of playlist 0
在不设置回调,只指定 timeout
参数后并无效果,设置 rw_timeout
后会导致一直失败重读,设置回调后才可以真正判断超时,设置方式如下
AVDictionary* opts = NULL;
if (startWith(srcPath, "rtsp://"))
{
// 设置rtsp拉流超时时间
bool is_tcp = true; // 设置tcp or udp,默认一般优先tcp再尝试udp
av_dict_set(&opts, "rtsp_transport", is_tcp ? "tcp" : "udp", 0);
av_dict_set(&opts, "stimeout", "10000000", 0); // 设置超时10秒
}
else
{
// 设置udp,http超时
av_dict_set(&opts, "timeout", "10000000", 0); // 设置超时10秒
}
// rw_timeout 网络读写操作最大等待时间,微妙
av_dict_set(&opts, "rw_timeout", "10000000", 0);
// 设置av_read_frame 超时回调
in_fmt = avformat_alloc_context();
in_fmt->interrupt_callback.callback = read_interrupt_callback;
in_fmt->interrupt_callback.opaque = this;
read_start_time = time(NULL); // 每次读流之前记录一下起始时间
if (avformat_open_input(&in_fmt, srcPath.c_str(), NULL, &opts) < 0) {
logger.error("avformat_open_input fail");
return;
}
回调函数
int read_interrupt_callback(void *ctx)
{
using namespace xl::picture;
if (!ctx) return 0;
Demo *d = (Demo*)ctx;
uint64_t end = time(NULL);
if (end - d->read_start_time >= 10)
{
return 1; // 退出阻塞
}
return 0; // 继续阻塞
}