我正在研究视频应用程序,但遇到UDP流与TCP的问题.
当我使用下面的管道时,视频流可以接受.(应用程序本身是python,但管道基本上如下)
sender:
gst-launch-0.10 v4l2src ! video/x-raw-yuv,width=320,height=240 !
theoraenc ! oggmux ! tcpclientsink host=nnn.nnn.nnn.nnn port = 5000
receiver:
gst-launch-0.10 tcpserversrc host=nnn.nnn.nnn.nnn port=5000
! decodebin ! xvimagesink
但是,由于这个应用程序要跨越/通过NAT执行,我需要UDP流.当我将tcpserversrc切换为"udpsrc port = 5000"并将tcpclientsink切换为"udpsink host = nnn.nnn.nnn.nnnn port = 5000"时,性能急剧下降到接收计算机每5秒获取一个帧的程度或者.(即使两个流在同一台机器上执行,也会发生这种情况)
发送管道生成以下(一次):
WARNING: from element /GstPipeline:pipeline0/GstUDPSink:udpsink0:
Internal data flow problem.
Additional debug info:
gstbasesink.c(3492): gst_base_sink_chain_unlocked (): /GstPipeline:pipeline0
/GstUDPSink:udpsink0:
Received buffer without a new-segment. Assuming timestamps start from 0.
...并且接收管道生成(每20秒左右):
WARNING: from element /GstPipeline:pipeline0/GstXvImageSink:xvimagesink0:
A lot of buffers are being dropped.
Additional debug info:
gstbasesink.c(2739): gst_base_sink_is_too_late …