Gstreamer - 通过 tcp 从 Logitech c920 流式传输 h264 视频 [英] Gstreamer - stream h264 video from Logitech c920 over tcp

问题描述

我正在尝试从 Logitech c920 流式传输视频，它直接输出 h264.发送端是树莓派，接收端是 Windows 7 PC.使用 udp 可以在 Gstreamer 中完美运行:

I am trying to stream video from Logitech c920 which outputs h264 directly. The sending side is a Raspberry Pi and the receiving side is a Windows 7 PC. Using udp this works flawlessly in Gstreamer:

发件人:

gst-launch-1.0 -v v4l2src device=/dev/video0 ! 
video/x-h264,width=1280,height=720,framerate=30/1 ! h264parse ! rtph264pay 
pt=127 config-interval=4 ! udpsink host=$myip port=$myport

接收方:

gst-launch-1.0 -e -v udpsrc port=5001 ! ^
application/x-rtp, payload=96 ! ^
rtpjitterbuffer ! ^
rtph264depay ! ^
avdec_h264 ! ^
autovideosink sync=false text-overlay=false

但是使用 tcp 这不起作用:

However using tcp this does not work:

发件人

gst-launch-1.0 -v v4l2src device=/dev/video0 ! 
video/x-h264,width=960,height=720,framerate=5/1 ! h264parse ! rtph264pay pt=96 config-interval=1 
! gdppay  ! tcpserversink host=$myip port=$myport

接收方:

gst-launch-1.0 -e -v tcpclientsrc host="172.17.166.255" port=5001  ! ^
application/x-gdp ! gdpdepay ! rtpjitterbuffer !  ^
rtph264depay ! ^
avdec_h264 ! ^
autovideosink sync=false text-overlay=false

我在接收方收到以下错误:

And I get the following error on the receiver side:

ERROR: from element /GstPipeline:pipeline0/GstGDPDepay:gdpdepay0: Could not decode stream.
Additional debug info:
gstgdpdepay.c(443): gst_gdp_depay_chain ():     
/GstPipeline:pipeline0/GstGDPDepay:gdpdepay0:
could not create event from GDP packet
EOS on shutdown enabled -- waiting for EOS after Error

有趣的是:如果我在启动发送方之前启动接收方，我会在视频流中断前获得几秒钟.我怀疑这可能是 gdppay gdpdepay 的问题，但我不确定.

The funny thing is: if I start the receiving side right before i start the sender, I get the video stream for a couple of seconds before it breaks. I suspect this can be a problem with the gdppay gdpdepay, but I do not know for sure.

推荐答案

以下适用于通过 TCP 流式传输 h264:

The following works for streaming h264 over TCP:

发件人:

v4l2src device=/dev/video0 ! video/x-h264,width=320,height=90,framerate=10/1 !
tcpserversink host=192.168.0.4 port=5000

接收方:

tcpclientsrc  host=192.168.0.4 port=5000 !
h264parse   ! avdec_h264  ! 
autovideosink sync=true

显然 h264 可以通过 tcp 流式传输，而无需使用 gdppay/depay

Apparently the h264 can be streamed over tcp withoug the use of gdppay/depay

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