Streaming audio and video RTP
William Johnston
wgj at cast.uark.edu
Wed Apr 29 19:29:45 UTC 2020
Careless of me, I linked it wrong. I linked the input of rtpbin to the
input of udpsink.
I'll try again:
gst-launch-1.0 -e \
rtpbin name=rb
uridecodebin uri="file:///home/fedora/starwars.mov" \
! qtdemux name=demux demux.audio_0 \
! queue \
! audioconvert \
! opusenc bandwidth=superwideband bitrate-type=vbr \
! rtpopuspay \
! rtprtxqueue max-size-time=2000 max-size-packets=0 \
! udpsink host=www.playbacktc.com <http://www.playbacktc.com/>
port=5052 \
demux.video_0 \
! queue \
! videorate ! video/x-raw, framerate=30000/1001 \
! videoconvert \
! x264enc tune=zerolatency speed-preset=1 dct8x8=true
quantizer=17 pass=qual \
! rtph264pay \
! rtprtxqueue max-size-time=2000 max-size-packets=0 \
! rb.send_rtp_sink_0 \
rb
! udpsink host=www.playbacktc.com <http://www.playbacktc.com/>
port=5054 \
On 4/28/2020 6:32 PM, Patrick Cusack wrote:
> Ok. Good to know. Unfortunately, that doesn’t work. I get the following:
>
> Setting pipeline to PAUSED ...
> Pipeline is PREROLLING ...
> DtsGetHWFeatures: Create File Failed
> DtsGetHWFeatures: Create File Failed
> Running DIL (3.22.0) Version
> DtsDeviceOpen: Opening HW in mode 0
> DtsDeviceOpen: Create File Failed
> Redistribute latency...
> WARNING: from element
> /GstPipeline:pipeline0/GstURIDecodeBin:uridecodebin0: Delayed linking
> failed.
> Additional debug info:
> ./grammar.y(506): gst_parse_no_more_pads ():
> /GstPipeline:pipeline0/GstURIDecodeBin:uridecodebin0:
> failed delayed linking some pad of GstURIDecodeBin named uridecodebin0
> to some pad of GstQTDemux named demux
> Redistribute latency…
>
> I checked the stats on my server and don’t see any audio or video
> packets coming in. The goal is to stream a file (eventually a video
> input like Decklink) to a server that receives rtp.
>
> I can send audio or video separately and I don’t have issues.
>
> Patrick
>
>> On Apr 28, 2020, at 11:49 AM, William Johnston <wgj at cast.uark.edu
>> <mailto:wgj at cast.uark.edu>> wrote:
>>
>> You can only specify ports on element names. Try this:
>>
>> gst-launch-1.0 -e \
>> uridecodebin uri="file:///home/fedora/starwars.mov" \
>> ! qtdemux name=demux demux.audio_0 \
>> ! queue \
>> ! audioconvert \
>> ! opusenc bandwidth=superwideband bitrate-type=vbr \
>> ! rtpopuspay \
>> ! rtprtxqueue max-size-time=2000 max-size-packets=0 \
>> ! udpsink host=www.playbacktc.com
>> <http://www.playbacktc.com/> port=5052 \
>> demux.video_0 \
>> ! queue \
>> ! videorate ! video/x-raw, framerate=30000/1001 \
>> ! videoconvert \
>> ! x264enc tune=zerolatency speed-preset=1 dct8x8=true
>> quantizer=17 pass=qual \
>> ! rtph264pay \
>> ! rtprtxqueue max-size-time=2000 max-size-packets=0 \
>> ! rtpbin name=rb rb.send_rtp_sink_0 \
>> ! udpsink host=www.playbacktc.com
>> <http://www.playbacktc.com/> port=5054 \
>>
>>
>> On 4/28/2020 12:42 PM, Patrick Cusack wrote:
>>> I have a endpoint that expects audio and video over ports 5052 and
>>> 5054 respectively. I am using the following script to send audio and
>>> video. I am getting a 'WARNING: erroneous pipeline: syntax error’
>>> when I run the command.
>>> Also, does using simple rtp payloads into a udp sink bypass RTCP
>>> feedback, ie if my server is NACKing on account of dropped packets,
>>> does this hinder retransmission of rtp packets?
>>>
>>> gst-launch-1.0 -e \
>>> uridecodebin uri="file:///home/fedora/starwars.mov" \
>>> ! qtdemux name=demux demux.audio_0 \
>>> ! queue \
>>> ! audioconvert \
>>> ! opusenc bandwidth=superwideband bitrate-type=vbr \
>>> ! rtpopuspay \
>>> ! rtprtxqueue max-size-time=2000 max-size-packets=0 \
>>> ! udpsink host=www.playbacktc.com
>>> <http://www.playbacktc.com/> port=5052 \
>>> demux.video_0 \
>>> ! queue \
>>> ! videorate ! video/x-raw, framerate=30000/1001 \
>>> ! videoconvert \
>>> ! x264enc tune=zerolatency speed-preset=1 dct8x8=true
>>> quantizer=17 pass=qual \
>>> ! rtph264pay \
>>> ! rtprtxqueue max-size-time=2000 max-size-packets=0 \
>>> ! rtpbin.send_rtp_sink_0 \
>>> ! udpsink host=www.playbacktc.com
>>> <http://www.playbacktc.com/> port=5054 \
>>>
>>> _______________________________________________
>>> gstreamer-devel mailing list
>>> gstreamer-devel at lists.freedesktop.org
>>> https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
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>
>
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