可能是时间戳问题或者这台计算机太慢了

Question

有人用gstreamer得到这个输出吗？

我正在试用gstreamer和rtp，从我的latptop到nvidia xavier

我的发送者管道就是这样的

gst-launch-1.0 v4l2src ! videoconvert ! 'video/x-raw,format=(string)I420' ! x264enc ! rtph264pay ! udpsink host=127.0.0.1 port=1234

我的客户端管道就是这样的

gst-launch-1.0 -vvv udpsrc port=1234 ! application/x-rtp,payload=96 ! rtph264depay ! avdec_h264 ! xvimagesink

我得到了以下输出，我的流也很慢和滞后。

WARNING: from element /GstPipeline:pipeline0/GstXvImageSink:xvimagesink0: A lot of buffers are being dropped.
Additional debug info:
gstbasesink.c(2902): gst_base_sink_is_too_late (): /GstPipeline:pipeline0/GstXvImageSink:xvimagesink0:
There may be a timestamping problem, or this computer is too slow.
WARNING: from element /GstPipeline:pipeline0/GstXvImageSink:xvimagesink0: A lot of buffers are being dropped.
Additional debug info:
gstbasesink.c(2902): gst_base_sink_is_too_late (): /GstPipeline:pipeline0/GstXvImageSink:xvimagesink0:
There may be a timestamping problem, or this computer is too slow.
WARNING: from element /GstPipeline:pipeline0/GstXvImageSink:xvimagesink0: A lot of buffers are being dropped.
Additional debug info:
gstbasesink.c(2902): gst_base_sink_is_too_late (): /GstPipeline:pipeline0/GstXvImageSink:xvimagesink0:
There may be a timestamping problem, or this computer is too slow.

任何帮助都将不胜感激。谢谢!

Answer 1

这些情况下的CPU使用情况如何？我没有使用这个平台的经验--它的意图可能是在GPU上运行大多数东西(比如视频解码和显示)。

尝试使用sync=false作为视频接收器。它可能仍然是滞后的，但不会丢弃任何帧。因此，也许可以通过观察这条管道获得更多信息。

用autovideoconvert ! autovideosink代替xvimagesink做接收器怎么样？

考虑使用rtpbin元素，而不是手动执行RTP部分。bin做了很多智能缓冲等等，这在这里可能会有帮助。

当然，还要仔细检查笔记本电脑的编码器没有出现这个问题。