I am attempting to capture my desktop using pipewire and gstreamer. I am using the following command
gst-launch-1.0 -vvv pipewiresrc path=$PATH ! videoconvert ! tee name=split ! queue ! fakesink split. ! x264enc speed-preset=superfast tune=zerolatency byte-stream=true sliced-threads=true threads=12 ! video/x-h264,stream-format=byte-stream,alignment=au,width=1920,height=1080 ! rtph264pay ! udpsink host=127.0.0.1 port=$PORT
However, it freezes when the timestamp appears and never outputs anything.
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
/GstPipeline:pipeline0/GstPipeWireSrc:pipewiresrc0.GstPad:src: caps = video/x-raw, format=(string)BGRx, width=(int)1920, height=(int)1080, framerate=(fraction)0/1, max-framerate=(fraction)60/1
/GstPipeline:pipeline0/GstVideoConvert:videoconvert0.GstPad:src: caps = video/x-raw, width=(int)1920, height=(int)1080, framerate=(fraction)0/1, max-framerate=(fraction)60/1, format=(string)Y444
/GstPipeline:pipeline0/GstTee:split.GstTeePad:src_0: caps = video/x-raw, width=(int)1920, height=(int)1080, framerate=(fraction)0/1, max-framerate=(fraction)60/1, format=(string)Y444
/GstPipeline:pipeline0/GstQueue:queue0.GstPad:sink: caps = video/x-raw, width=(int)1920, height=(int)1080, framerate=(fraction)0/1, max-framerate=(fraction)60/1, format=(string)Y444
/GstPipeline:pipeline0/GstTee:split.GstTeePad:src_1: caps = video/x-raw, width=(int)1920, height=(int)1080, framerate=(fraction)0/1, max-framerate=(fraction)60/1, format=(string)Y444
/GstPipeline:pipeline0/GstQueue:queue0.GstPad:src: caps = video/x-raw, width=(int)1920, height=(int)1080, framerate=(fraction)0/1, max-framerate=(fraction)60/1, format=(string)Y444
/GstPipeline:pipeline0/GstFakeSink:fakesink0.GstPad:sink: caps = video/x-raw, width=(int)1920, height=(int)1080, framerate=(fraction)0/1, max-framerate=(fraction)60/1, format=(string)Y444
Redistribute latency...
/GstPipeline:pipeline0/GstX264Enc:x264enc0.GstPad:sink: caps = video/x-raw, width=(int)1920, height=(int)1080, framerate=(fraction)0/1, max-framerate=(fraction)60/1, format=(string)Y444
/GstPipeline:pipeline0/GstTee:split.GstPad:sink: caps = video/x-raw, width=(int)1920, height=(int)1080, framerate=(fraction)0/1, max-framerate=(fraction)60/1, format=(string)Y444
/GstPipeline:pipeline0/GstVideoConvert:videoconvert0.GstPad:sink: caps = video/x-raw, format=(string)BGRx, width=(int)1920, height=(int)1080, framerate=(fraction)0/1, max-framerate=(fraction)60/1
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: pipewireclock0
Redistribute latency...
/GstPipeline:pipeline0/GstX264Enc:x264enc0.GstPad:src: caps = video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, level=(string)4.2, profile=(string)high-4:4:4, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)0/1, max-framerate=(fraction)60/1, interlace-mode=(string)progressive, colorimetry=(string)bt709, chroma-site=(string)mpeg2
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:src: caps = video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, level=(string)4.2, profile=(string)high-4:4:4, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)0/1, max-framerate=(fraction)60/1, interlace-mode=(string)progressive, colorimetry=(string)bt709, chroma-site=(string)mpeg2
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0.GstPad:sink: caps = video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, level=(string)4.2, profile=(string)high-4:4:4, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)0/1, max-framerate=(fraction)60/1, interlace-mode=(string)progressive, colorimetry=(string)bt709, chroma-site=(string)mpeg2
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:sink: caps = video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, level=(string)4.2, profile=(string)high-4:4:4, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)0/1, max-framerate=(fraction)60/1, interlace-mode=(string)progressive, colorimetry=(string)bt709, chroma-site=(string)mpeg2
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0.GstPad:src: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264, ssrc=(uint)133320936, timestamp-offset=(uint)789806277, seqnum-offset=(uint)15098, a-framerate=(string)60
/GstPipeline:pipeline0/GstUDPSink:udpsink0.GstPad:sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264, ssrc=(uint)133320936, timestamp-offset=(uint)789806277, seqnum-offset=(uint)15098, a-framerate=(string)60
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0.GstPad:src: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, packetization-mode=(string)1, sprop-parameter-sets=(string)"Z/QAKpGWgHgCJ+JwFqAgICgAAAMACAAAAwPEeMGV\,aO8xkhk\=", payload=(int)96, seqnum-offset=(uint)15098, timestamp-offset=(uint)789806277, ssrc=(uint)133320936, a-framerate=(string)60
/GstPipeline:pipeline0/GstUDPSink:udpsink0.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, packetization-mode=(string)1, sprop-parameter-sets=(string)"Z/QAKpGWgHgCJ+JwFqAgICgAAAMACAAAAwPEeMGV\,aO8xkhk\=", payload=(int)96, seqnum-offset=(uint)15098, timestamp-offset=(uint)789806277, ssrc=(uint)133320936, a-framerate=(string)60
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0: timestamp = 789806277
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0: seqnum = 15098
Redistribute latency...
0:00:00.0 / 99:99:99.
However, using autovideosink in place of fakesink makes it work peachily (Is that a word?)
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
/GstPipeline:pipeline0/GstPipeWireSrc:pipewiresrc0.GstPad:src: caps = video/x-raw, format=(string)BGRx, width=(int)1920, height=(int)1080, framerate=(fraction)0/1, max-framerate=(fraction)60/1
/GstPipeline:pipeline0/GstVideoConvert:videoconvert0.GstPad:src: caps = video/x-raw, width=(int)1920, height=(int)1080, framerate=(fraction)0/1, max-framerate=(fraction)60/1, format=(string)YV12
/GstPipeline:pipeline0/GstTee:split.GstTeePad:src_0: caps = video/x-raw, width=(int)1920, height=(int)1080, framerate=(fraction)0/1, max-framerate=(fraction)60/1, format=(string)YV12
/GstPipeline:pipeline0/GstQueue:queue0.GstPad:sink: caps = video/x-raw, width=(int)1920, height=(int)1080, framerate=(fraction)0/1, max-framerate=(fraction)60/1, format=(string)YV12
/GstPipeline:pipeline0/GstTee:split.GstTeePad:src_1: caps = video/x-raw, width=(int)1920, height=(int)1080, framerate=(fraction)0/1, max-framerate=(fraction)60/1, format=(string)YV12
/GstPipeline:pipeline0/GstQueue:queue0.GstPad:src: caps = video/x-raw, width=(int)1920, height=(int)1080, framerate=(fraction)0/1, max-framerate=(fraction)60/1, format=(string)YV12
/GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0.GstGhostPad:sink.GstProxyPad:proxypad0: caps = video/x-raw, width=(int)1920, height=(int)1080, framerate=(fraction)0/1, max-framerate=(fraction)60/1, format=(string)YV12
/GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0/GstXvImageSink:autovideosink0-actual-sink-xvimage.GstPad:sink: caps = video/x-raw, width=(int)1920, height=(int)1080, framerate=(fraction)0/1, max-framerate=(fraction)60/1, format=(string)YV12
/GstPipeline:pipeline0/GstAutoVideoSink:autovideosink0.GstGhostPad:sink: caps = video/x-raw, width=(int)1920, height=(int)1080, framerate=(fraction)0/1, max-framerate=(fraction)60/1, format=(string)YV12
Redistribute latency...
/GstPipeline:pipeline0/GstX264Enc:x264enc0.GstPad:sink: caps = video/x-raw, width=(int)1920, height=(int)1080, framerate=(fraction)0/1, max-framerate=(fraction)60/1, format=(string)YV12
/GstPipeline:pipeline0/GstTee:split.GstPad:sink: caps = video/x-raw, width=(int)1920, height=(int)1080, framerate=(fraction)0/1, max-framerate=(fraction)60/1, format=(string)YV12
/GstPipeline:pipeline0/GstVideoConvert:videoconvert0.GstPad:sink: caps = video/x-raw, format=(string)BGRx, width=(int)1920, height=(int)1080, framerate=(fraction)0/1, max-framerate=(fraction)60/1
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: pipewireclock0
/GstPipeline:pipeline0/GstX264Enc:x264enc0.GstPad:src: caps = video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, level=(string)4.2, profile=(string)high, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)0/1, max-framerate=(fraction)60/1, interlace-mode=(string)progressive, colorimetry=(string)bt709, chroma-site=(string)mpeg2
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:src: caps = video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, level=(string)4.2, profile=(string)high, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)0/1, max-framerate=(fraction)60/1, interlace-mode=(string)progressive, colorimetry=(string)bt709, chroma-site=(string)mpeg2
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0.GstPad:sink: caps = video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, level=(string)4.2, profile=(string)high, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)0/1, max-framerate=(fraction)60/1, interlace-mode=(string)progressive, colorimetry=(string)bt709, chroma-site=(string)mpeg2
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:sink: caps = video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, level=(string)4.2, profile=(string)high, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)0/1, max-framerate=(fraction)60/1, interlace-mode=(string)progressive, colorimetry=(string)bt709, chroma-site=(string)mpeg2
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0.GstPad:src: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264, ssrc=(uint)758478195, timestamp-offset=(uint)4089353331, seqnum-offset=(uint)7752, a-framerate=(string)60
/GstPipeline:pipeline0/GstUDPSink:udpsink0.GstPad:sink: caps = application/x-rtp, media=(string)video, payload=(int)96, clock-rate=(int)90000, encoding-name=(string)H264, ssrc=(uint)758478195, timestamp-offset=(uint)4089353331, seqnum-offset=(uint)7752, a-framerate=(string)60
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0.GstPad:src: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, packetization-mode=(string)1, sprop-parameter-sets=(string)"Z2QAKqy0A8ARPy4C1AQEBQAAAwABAAADAHiPGDKg\,aO88sA\=\=", payload=(int)96, seqnum-offset=(uint)7752, timestamp-offset=(uint)4089353331, ssrc=(uint)758478195, a-framerate=(string)60
/GstPipeline:pipeline0/GstUDPSink:udpsink0.GstPad:sink: caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, packetization-mode=(string)1, sprop-parameter-sets=(string)"Z2QAKqy0A8ARPy4C1AQEBQAAAwABAAADAHiPGDKg\,aO88sA\=\=", payload=(int)96, seqnum-offset=(uint)7752, timestamp-offset=(uint)4089353331, ssrc=(uint)758478195, a-framerate=(string)60
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0: timestamp = 4089353331
/GstPipeline:pipeline0/GstRtpH264Pay:rtph264pay0: seqnum = 7752
Redistribute latency...
Redistribute latency...
^Chandling interrupt.
Interrupt: Stopping pipeline ...
Execution ended after 0:00:15.160166600
Setting pipeline to NULL ...
Does anyone have an idea as to why this is happening, and how to fix it? I'm running GStreamer version 1.20.0 and kernel version 5.18.6-200 on Fedora. I've encountered this issue before with just a straight pipeline (without the tee into another sink), but without it the stream doesn't proceed after the first timestamp is posted, much like if fakesink is put in instead of autovideosink, which makes me think it may be an issue with pipelinesrc. The stream works with videotestsrc