Gstreamer RTSP服务器

Question

Gstreamer RTSP服务器

4

我希望使用Gstreamer 1.0（gst-launch-1.0）设置一个RTSP服务器流。

我的“服务器”目前如下

gst-launch-1.0.exe videotestsrc  ! x264enc ! rtph264pay ! udpsink host=localhost port=5000

我的客户端长这样

gst-launch-1.0.exe udpsrc port=5000 ! rtpmp2tdepay ! decodebin ! autovideosink

这两个命令都能够正常运行，但是我在“客户端”上看不到任何视频。此外，我知道我的命令只是通过RTP将H.264编码视频流式传输到UDP端口。

我可以看到一些数据从UDP端口5000进入，因此我认为发送方部分是正确的。

我的问题：

接收端出了什么问题？
如何设置gst-launch-1.0以提供带有元信息.sdp文件的RTSP流？

编辑（2014-03-24）：发送端的调试输出：

gst-launch-1.0.exe -v videotestsrc ! x264enc ! rtph264pay ! udpsink host=localhost port=5000
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
/GstPipeline:pipeline0/GstVideoTestSrc:videotestsrc0.GstPad:src: caps = video/x-raw, framerate=(fraction)30/1, width=(int)320, height=(int)240, format=(string)I420, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive
/GstPipeline:pipeline0/GstX264Enc:x264enc0.GstPad:sink: caps = video/x-raw, framerate=(fraction)30/1, width=(int)320, height=(int)240, format=(string)I420, pixel-aspect-ratio=(fraction)1/1, interlace-mode=(string)progressive
Redistribute latency...
/GstPipeline:pipeline0/GstX264Enc:x264enc0.GstPad:src: caps = video/x-h264, codec_data=(buffer)01640014ffe1001967640014acd94141fb0110000003001000000303c8f142996001000568ebecb22c, stream-format=(string)avc, alignment=(string)au, level=(string)2, profile=(string)high, width=(int)320, height=(int)240, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)30/1
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0.GstPad:src: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, sprop-parameter-sets=(string)"Z2QAFKzZQUH7ARAAAAMAEAAAAwPI8UKZYA\=\=\,aOvssiw\=", payload=(int)96, ssrc=(uint)383435573, timestamp-offset=(uint)786392204, seqnum-offset=(uint)781
/GstPipeline:pipeline0/GstUDPSink:udpsink0.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, sprop-parameter-sets=(string)"Z2QAFKzZQUH7ARAAAAMAEAAAAwPI8UKZYA\=\=\,aOvssiw\=", payload=(int)96, ssrc=(uint)383435573, timestamp-offset=(uint)786392204, seqnum-offset=(uint)781
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0.GstPad:sink: caps = video/x-h264, codec_data=(buffer)01640014ffe1001967640014acd94141fb0110000003001000000303c8f142996001000568ebecb22c, stream-format=(string)avc, alignment=(string)au, level=(string)2, profile=(string)high, width=(int)320, height=(int)240, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)30/1
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0: timestamp = 786392204
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0: seqnum = 781
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock

接收方：

gst-launch-1.0.exe -vvv udpsrc port=5000 ! "application/x-rtp, media=video, clock-rate=90000, encoding-name=H264, payload=96" ! queue ! rtph264depay ! queue ! decodebin ! autovideosink sync=false
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock

感谢你！

- Soccertrash

1个回答

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- max taldykin · Accepted Answer

问题#1：您在发送端使用的是rtph264pay，但在接收端使用的是rtpmp2tdepay。您需要使用rtph264depay。

问题#2：您需要提供rtph264depay的功能，以正确识别视频格式。
为了获取正确的功能，请使用-v标志运行发送代码，并将rtp特定功能复制到接收管道中。

gst-launch-1.0 udpsrc port=5000 ! "application/x-rtp, media=video, clock-rate=90000, encoding-name=H264, payload=96" ! rtph264depay ! decodebin ! autovideosink