Re: Trying to turn on gstreamer vaapi {en,de}coding

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On Sunday, November 27th, 2022 at 15:01, Victor Toso <victortoso@xxxxxxxxxx> wrote:
[...]
>
> From what I could see, you have set the h264 video-codec
> preference at 13:06:46 and terminated spicy around 13:06:49.
>
> So, perhaps the first issue is the assumption that as soon as you
> set the video-codec preference, that the stream will start. It'll
> not. The streaming will happen based on update frequency on the
> display. For example, a clock updating the seconds, once every
> second, will not create a video streaming. You should try running
> an App that has high update frequency or just a video.
>
> GStreamer needs to be enabled in spice-server at build time too.
> You can check with ldd in libspice-server.so...
>
> So, the logs from spice-server would be useful to know what issue
> might have happened at encoding if it doesn't work.
>
> Just trying to give you some ideas and directions to go.
>

Thank you Victor for taking the time, I do appreciate it!


Sorry for the grep of gst-inspect, here's the full output:
Host:
1394:  dv1394src: Firewire (1394) DV video source
1394:  hdv1394src: Firewire (1394) HDV video source
a52dec:  a52dec: ATSC A/52 audio decoder
aasink:  aasink: ASCII art video sink
aasink:  aatv: aaTV effect
accurip:  accurip: AccurateRip(TM) CRC element
adder:  adder: Adder
adpcmdec:  adpcmdec: ADPCM decoder
adpcmenc:  adpcmenc: ADPCM encoder
aes:  aesdec: aesdec
aes:  aesenc: aesenc
aiff:  aiffmux: AIFF audio muxer
aiff:  aiffparse: AIFF audio demuxer
alaw:  alawdec: A Law audio decoder
alaw:  alawenc: A Law audio encoder
alpha:  alpha: Alpha filter
alphacolor:  alphacolor: Alpha color filter
amrnb:  amrnbdec: AMR-NB audio decoder
amrnb:  amrnbenc: AMR-NB audio encoder
amrwbdec:  amrwbdec: AMR-WB audio decoder
aom:  av1dec: AV1 Decoder
aom:  av1enc: AV1 Encoder
apetag:  apedemux: APE tag demuxer
app:  appsink: AppSink
app:  appsrc: AppSrc
asf:  asfdemux: ASF Demuxer
asf:  rtpasfdepay: RTP ASF packet depayloader
asf:  rtspwms: WMS RTSP Extension
asfmux:  asfmux: ASF muxer
asfmux:  asfparse: ASF parser
asfmux:  rtpasfpay: RTP ASF payloader
assrender:  assrender: ASS/SSA Render
audiobuffersplit:  audiobuffersplit: Audio Buffer Split
audioconvert:  audioconvert: Audio converter
audiofx:  audioamplify: Audio amplifier
audiofx:  audiochebband: Band pass & band reject filter
audiofx:  audiocheblimit: Low pass & high pass filter
audiofx:  audiodynamic: Dynamic range controller
audiofx:  audioecho: Audio echo
audiofx:  audiofirfilter: Audio FIR filter
audiofx:  audioiirfilter: Audio IIR filter
audiofx:  audioinvert: Audio inversion
audiofx:  audiokaraoke: AudioKaraoke
audiofx:  audiopanorama: Stereo positioning
audiofx:  audiowsincband: Band pass & band reject filter
audiofx:  audiowsinclimit: Low pass & high pass filter
audiofx:  scaletempo: Scaletempo
audiofx:  stereo: Stereo effect
audiofxbad:  audiochannelmix: Simple stereo audio mixer
audiolatency:  audiolatency: AudioLatency
audiomixer:  audiointerleave: AudioInterleave
audiomixer:  audiomixer: AudioMixer
audiomixer:  liveadder: AudioMixer
audiomixmatrix:  audiomixmatrix: Matrix audio mix
audioparsers:  aacparse: AAC audio stream parser
audioparsers:  ac3parse: AC3 audio stream parser
audioparsers:  amrparse: AMR audio stream parser
audioparsers:  dcaparse: DTS Coherent Acoustics audio stream parser
audioparsers:  flacparse: FLAC audio parser
audioparsers:  mpegaudioparse: MPEG1 Audio Parser
audioparsers:  sbcparse: SBC audio parser
audioparsers:  wavpackparse: Wavpack audio stream parser
audiorate:  audiorate: Audio rate adjuster
audioresample:  audioresample: Audio resampler
audiotestsrc:  audiotestsrc: Audio test source
audiovisualizers:  spacescope: Stereo visualizer
audiovisualizers:  spectrascope: Frequency spectrum scope
audiovisualizers:  synaescope: Synaescope
audiovisualizers:  wavescope: Waveform oscilloscope
auparse:  auparse: AU audio demuxer
autoconvert:  autoconvert: Select converter based on caps
autoconvert:  autovideoconvert: Select color space converter based on caps
autodetect:  autoaudiosink: Auto audio sink
autodetect:  autoaudiosrc: Auto audio source
autodetect:  autovideosink: Auto video sink
autodetect:  autovideosrc: Auto video source
avi:  avidemux: Avi demuxer
avi:  avimux: Avi muxer
avi:  avisubtitle: Avi subtitle parser
bayer:  bayer2rgb: Bayer to RGB decoder for cameras
bayer:  rgb2bayer: RGB to Bayer converter
bluez:  a2dpsink: Bluetooth A2DP sink
bluez:  avdtpsink: Bluetooth AVDTP sink
bluez:  avdtpsrc: Bluetooth AVDTP Source
bs2b:  bs2b: Crossfeed effect
bz2:  bz2dec: BZ2 decoder
bz2:  bz2enc: BZ2 encoder
cacasink:  cacasink: A colored ASCII art video sink
cacasink:  cacatv: CacaTV effect
cairo:  cairooverlay: Cairo overlay
camerabin:  camerabin: Camera Bin
camerabin:  viewfinderbin: Viewfinder Bin
camerabin:  wrappercamerabinsrc: Wrapper camera src element for camerabin2
cdio:  cdiocddasrc: CD audio source (CDDA)
cdparanoia:  cdparanoiasrc: CD Audio (cdda) Source, Paranoia IV
chromaprint:  chromaprint: Chromaprint fingerprinting element
closedcaption:  cc708overlay: Closed Caption overlay
closedcaption:  cccombiner: Closed Caption Combiner
closedcaption:  ccconverter: Closed Caption Converter
closedcaption:  ccextractor: Closed Caption Extractor
closedcaption:  line21decoder: Line 21 CC Decoder
closedcaption:  line21encoder: Line 21 CC Encoder
codecalpha:  alphacombine: Alpha Combiner
codecalpha:  codecalphademux: CODEC Alpha Demuxer
codecalpha:  vp8alphadecodebin: VP8 Alpha Decoder
codecalpha:  vp9alphadecodebin: VP9 Alpha Decoder
coloreffects:  chromahold: Chroma hold filter
coloreffects:  coloreffects: Color Look-up Table filter
colormanagement:  lcms: LCMS2 ICC correction
compositor:  compositor: Compositor
coreelements:  capsfilter: CapsFilter
coreelements:  clocksync: ClockSync
coreelements:  concat: Concat
coreelements:  dataurisrc: data: URI source element
coreelements:  downloadbuffer: DownloadBuffer
coreelements:  fakesink: Fake Sink
coreelements:  fakesrc: Fake Source
coreelements:  fdsink: Filedescriptor Sink
coreelements:  fdsrc: Filedescriptor Source
coreelements:  filesink: File Sink
coreelements:  filesrc: File Source
coreelements:  funnel: Funnel pipe fitting
coreelements:  identity: Identity
coreelements:  input-selector: Input selector
coreelements:  multiqueue: MultiQueue
coreelements:  output-selector: Output selector
coreelements:  queue: Queue
coreelements:  queue2: Queue 2
coreelements:  streamiddemux: Streamid Demux
coreelements:  tee: Tee pipe fitting
coreelements:  typefind: TypeFind
coreelements:  valve: Valve element
coretracers:  factories (GstTracerFactory)
coretracers:  latency (GstTracerFactory)
coretracers:  leaks (GstTracerFactory)
coretracers:  log (GstTracerFactory)
coretracers:  rusage (GstTracerFactory)
coretracers:  stats (GstTracerFactory)
curl:  curlfilesink: Curl file sink
curl:  curlftpsink: Curl ftp sink
curl:  curlhttpsink: Curl http sink
curl:  curlhttpsrc: HTTP Client Source using libcURL
curl:  curlsftpsink: Curl sftp sink
curl:  curlsmtpsink: Curl smtp sink
cutter:  cutter: Audio cutter
dash:  dashdemux: DASH Demuxer
dash:  dashsink: DASH Sink
dc1394:  dc1394src: 1394 IIDC Video Source
de265:  libde265dec: HEVC/H.265 decoder
debug:  breakmydata: Break my data
debug:  capssetter: CapsSetter
debug:  cpureport: CPU report
debug:  navseek: Seek based on left-right arrows
debug:  progressreport: Progress report
debug:  pushfilesrc: Push File Source
debug:  rndbuffersize: Random buffer size
debug:  taginject: TagInject
debug:  testsink: Test plugin
debugutilsbad:  checksumsink: Checksum sink
debugutilsbad:  chopmydata: Chop my data
debugutilsbad:  clockselect: Clock select
debugutilsbad:  compare: Compare buffers
debugutilsbad:  debugspy: DebugSpy
debugutilsbad:  errorignore: Convert some GstFlowReturn types into others
debugutilsbad:  fakeaudiosink: Fake Audio Sink
debugutilsbad:  fakevideosink: Fake Video Sink
debugutilsbad:  fpsdisplaysink: Measure and show framerate on videosink
debugutilsbad:  testsrcbin: Generic bin
debugutilsbad:  videocodectestsink: Video CODEC Test Sink
debugutilsbad:  watchdog: Watchdog
decklink:  decklinkaudiosink: Decklink Audio Sink
decklink:  decklinkaudiosrc: Decklink Audio Source
decklink:  decklinkdeviceprovider (GstDeviceProviderFactory)
decklink:  decklinkvideosink: Decklink Video Sink
decklink:  decklinkvideosrc: Decklink Video Source
deinterlace:  deinterlace: Deinterlacer
dtls:  dtlsdec: DTLS Decoder
dtls:  dtlsenc: DTLS Encoder
dtls:  dtlssrtpdec: DTLS-SRTP Decoder
dtls:  dtlssrtpdemux: DTLS SRTP Demultiplexer
dtls:  dtlssrtpenc: DTLS-SRTP Encoder
dtmf:  dtmfsrc: DTMF tone generator
dtmf:  rtpdtmfdepay: RTP DTMF packet depayloader
dtmf:  rtpdtmfsrc: RTP DTMF packet generator
dtsdec:  dtsdec: DTS audio decoder
dv:  dvdec: DV video decoder
dv:  dvdemux: DV system stream demuxer
dvb:  dvbbasebin: DVB bin
dvb:  dvbsrc: DVB Source
dvbsubenc:  dvbsubenc: DVB subtitle encoder
dvbsuboverlay:  dvbsuboverlay: DVB Subtitles Overlay
dvdlpcmdec:  dvdlpcmdec: DVD LPCM Audio decoder
dvdread:  dvdreadsrc: DVD Source
dvdspu:  dvdspu: Sub-picture Overlay
dvdsub:  dvdsubdec: DVD subtitle decoder
dvdsub:  dvdsubparse: DVD subtitle parser
effectv:  agingtv: AgingTV effect
effectv:  dicetv: DiceTV effect
effectv:  edgetv: EdgeTV effect
effectv:  optv: OpTV effect
effectv:  quarktv: QuarkTV effect
effectv:  radioactv: RadioacTV effect
effectv:  revtv: RevTV effect
effectv:  rippletv: RippleTV effect
effectv:  shagadelictv: ShagadelicTV
effectv:  streaktv: StreakTV effect
effectv:  vertigotv: VertigoTV effect
effectv:  warptv: WarpTV effect
encoding:  encodebin: Encoder Bin
encoding:  encodebin2: Encoder Bin
equalizer:  equalizer-10bands: 10 Band Equalizer
equalizer:  equalizer-3bands: 3 Band Equalizer
equalizer:  equalizer-nbands: N Band Equalizer
faad:  faad: AAC audio decoder
faceoverlay:  faceoverlay: faceoverlay
fbdevsink:  fbdevsink: fbdev video sink
festival:  festival: Festival Text-to-Speech synthesizer
fieldanalysis:  fieldanalysis: Video field analysis
flac:  flacdec: FLAC audio decoder
flac:  flacenc: FLAC audio encoder
flac:  flactag: FLAC tagger
flite:  flitetestsrc: Flite speech test source
fluidsynthmidi:  fluiddec: Fluidsynth
flv:  flvdemux: FLV Demuxer
flv:  flvmux: FLV muxer
flxdec:  flxdec: FLX video decoder
freeverb:  freeverb: Reverberation/room effect
gaudieffects:  burn: Burn
gaudieffects:  chromium: Chromium
gaudieffects:  dilate: Dilate
gaudieffects:  dodge: Dodge
gaudieffects:  exclusion: Exclusion
gaudieffects:  gaussianblur: GstGaussianBlur
gaudieffects:  solarize: Solarize
gdkpixbuf:  gdkpixbufdec: GdkPixbuf image decoder
gdkpixbuf:  gdkpixbufoverlay: GdkPixbuf Overlay
gdkpixbuf:  gdkpixbufsink: GdkPixbuf sink
gdp:  gdpdepay: GDP Depayloader
gdp:  gdppay: GDP Payloader
geometrictransform:  bulge: bulge
geometrictransform:  circle: circle
geometrictransform:  diffuse: diffuse
geometrictransform:  fisheye: fisheye
geometrictransform:  kaleidoscope: kaleidoscope
geometrictransform:  marble: marble
geometrictransform:  mirror: mirror
geometrictransform:  perspective: perspective
geometrictransform:  pinch: pinch
geometrictransform:  rotate: rotate
geometrictransform:  sphere: sphere
geometrictransform:  square: square
geometrictransform:  stretch: stretch
geometrictransform:  tunnel: tunnel
geometrictransform:  twirl: twirl
geometrictransform:  waterripple: waterripple
gio:  giosink: GIO sink
gio:  giosrc: GIO source
gio:  giostreamsink: GIO stream sink
gio:  giostreamsrc: GIO stream source
gme:  gmedec: Gaming console music file decoder
goom:  goom: GOOM: what a GOOM!
goom2k1:  goom2k1: GOOM: what a GOOM! 2k1 edition
gsm:  gsmdec: GSM audio decoder
gsm:  gsmenc: GSM audio encoder
hls:  hlsdemux: HLS Demuxer
hls:  hlssink: HTTP Live Streaming sink
hls:  hlssink2: HTTP Live Streaming sink
icydemux:  icydemux: ICY tag demuxer
id3demux:  id3demux: ID3 tag demuxer
id3tag:  id3mux: ID3 v1 and v2 Muxer
imagefreeze:  imagefreeze: Still frame stream generator
inter:  interaudiosink: Internal audio sink
inter:  interaudiosrc: Internal audio source
inter:  intersubsink: Internal subtitle sink
inter:  intersubsrc: Internal subtitle source
inter:  intervideosink: Internal video sink
inter:  intervideosrc: Internal video source
interlace:  interlace: Interlace filter
interleave:  deinterleave: Audio deinterleaver
interleave:  interleave: Audio interleaver
ipcpipeline:  ipcpipelinesink: Inter-process Pipeline Sink
ipcpipeline:  ipcpipelinesrc: Inter-process Pipeline Source
ipcpipeline:  ipcslavepipeline: Inter-process slave pipeline
isomp4:  3gppmux: 3GPP Muxer
isomp4:  ismlmux: ISML Muxer
isomp4:  mj2mux: MJ2 Muxer
isomp4:  mp4mux: MP4 Muxer
isomp4:  qtdemux: QuickTime demuxer
isomp4:  qtmoovrecover: QT Moov Recover
isomp4:  qtmux: QuickTime Muxer
isomp4:  rtpxqtdepay: RTP packet depayloader
ivfparse:  ivfparse: IVF parser
ivtc:  combdetect: Comb Detect
ivtc:  ivtc: Inverse Telecine
jack:  jackaudiosink: Audio Sink (Jack)
jack:  jackaudiosrc: Audio Source (Jack)
jp2kdecimator:  jp2kdecimator: JPEG2000 decimator
jpeg:  jpegdec: JPEG image decoder
jpeg:  jpegenc: JPEG image encoder
jpegformat:  jifmux: JPEG stream muxer
jpegformat:  jpegparse: JPEG stream parser
kate:  katedec: Kate stream text decoder
kate:  kateenc: Kate stream encoder
kate:  kateparse: Kate stream parser
kate:  katetag: Kate stream tagger
kms:  kmssink: KMS video sink
lame:  lamemp3enc: L.A.M.E. mp3 encoder
ldac:  ldacenc: Bluetooth LDAC audio encoder
legacyrawparse:  audioparse: Audio Parse
legacyrawparse:  videoparse: Video Parse
level:  level: Level
matroska:  matroskademux: Matroska demuxer
matroska:  matroskamux: Matroska muxer
matroska:  matroskaparse: Matroska parser
matroska:  webmmux: WebM muxer
midi:  midiparse: MidiParse
modplug:  modplug: ModPlug
monoscope:  monoscope: Monoscope
mpeg2dec:  mpeg2dec: mpeg1 and mpeg2 video decoder
mpeg2enc:  mpeg2enc: mpeg2enc video encoder
mpegpsdemux:  mpegpsdemux: MPEG Program Stream Demuxer
mpegpsmux:  mpegpsmux: MPEG Program Stream Muxer
mpegtsdemux:  tsdemux: MPEG transport stream demuxer
mpegtsdemux:  tsparse: MPEG transport stream parser
mpegtsmux:  atscmux: ATSC Transport Stream Muxer
mpegtsmux:  mpegtsmux: MPEG Transport Stream Muxer
mpg123:  mpg123audiodec: mpg123 mp3 decoder
mplex:  mplex: mplex video multiplexer
mulaw:  mulawdec: Mu Law audio decoder
mulaw:  mulawenc: Mu Law audio encoder
multifile:  imagesequencesrc: Image Sequence Source
multifile:  multifilesink: Multi-File Sink
multifile:  multifilesrc: Multi-File Source
multifile:  splitfilesrc: Split-File Source
multifile:  splitmuxsink: Split Muxing Bin
multifile:  splitmuxsrc: Split File Demuxing Bin
multipart:  multipartdemux: Multipart demuxer
multipart:  multipartmux: Multipart muxer
musepack:  musepackdec: Musepack decoder
mxf:  mxfdemux: MXF Demuxer
mxf:  mxfmux: MXF muxer
navigationtest:  navigationtest: Video navigation test
netsim:  netsim: Network Simulator
ogg:  oggaviparse: Ogg AVI parser
ogg:  oggdemux: Ogg demuxer
ogg:  oggmux: Ogg muxer
ogg:  oggparse: Ogg parser
ogg:  ogmaudioparse: OGM audio stream parser
ogg:  ogmtextparse: OGM text stream parser
ogg:  ogmvideoparse: OGM video stream parser
openal:  openalsink: OpenAL Audio Sink
openal:  openalsrc: OpenAL Audio Source
openaptx:  openaptxdec: Bluetooth aptX/aptX-HD audio decoder using libopenaptx
openaptx:  openaptxenc: Bluetooth aptX/aptX-HD audio encoder using libopenaptx
openexr:  openexrdec: OpenEXR decoder
opengl:  glalpha: OpenGL Alpha Filter
opengl:  glcolorbalance: Video balance
opengl:  glcolorconvert: OpenGL color converter
opengl:  glcolorscale: OpenGL color scale
opengl:  gldeinterlace: OpenGL deinterlacing filter
opengl:  gldifferencematte: Gstreamer OpenGL DifferenceMatte
opengl:  gldownload: OpenGL downloader
opengl:  gleffects: Gstreamer OpenGL Effects
opengl:  gleffects_blur: Blur with 9x9 separable convolution Effect
opengl:  gleffects_bulge: Bulge Effect
opengl:  gleffects_fisheye: FishEye Effect
opengl:  gleffects_glow: Glow Lighting Effect
opengl:  gleffects_heat: Heat Signature Effect
opengl:  gleffects_identity: Do nothing Effect
opengl:  gleffects_laplacian: Laplacian Convolution Demo Effect
opengl:  gleffects_lumaxpro: Luma Cross Processing Effect
opengl:  gleffects_mirror: Mirror Effect
opengl:  gleffects_sepia: Sepia Toning Effect
opengl:  gleffects_sin: All Grey but Red Effect
opengl:  gleffects_sobel: Sobel edge detection Effect
opengl:  gleffects_square: Square Effect
opengl:  gleffects_squeeze: Squeeze Effect
opengl:  gleffects_stretch: Stretch Effect
opengl:  gleffects_tunnel: Light Tunnel Effect
opengl:  gleffects_twirl: Twirl Effect
opengl:  gleffects_xpro: Cross Processing Effect
opengl:  gleffects_xray: Glowing negative effect
opengl:  glfilterapp: OpenGL application filter
opengl:  glfilterbin: GL Filter Bin
opengl:  glfiltercube: OpenGL cube filter
opengl:  glfilterglass: OpenGL glass filter
opengl:  glimagesink: GL Sink Bin
opengl:  glimagesinkelement: OpenGL video sink
opengl:  glmixerbin: OpenGL video_mixer empty bin
opengl:  glmosaic: OpenGL mosaic
opengl:  gloverlay: Gstreamer OpenGL Overlay
opengl:  gloverlaycompositor: OpenGL overlaying filter
opengl:  glshader: OpenGL fragment shader filter
opengl:  glsinkbin: GL Sink Bin
opengl:  glsrcbin: GL Src Bin
opengl:  glstereomix: OpenGL stereo video combiner
opengl:  glstereosplit: GLStereoSplit
opengl:  gltestsrc: Video test source
opengl:  gltransformation: OpenGL transformation filter
opengl:  glupload: OpenGL uploader
opengl:  glvideoflip: OpenGL video flip filter
opengl:  glvideomixer: OpenGL video_mixer bin
opengl:  glvideomixerelement: OpenGL video_mixer
opengl:  glviewconvert: OpenGL Multiview/3D conversion filter
openh264:  openh264dec: OpenH264 video decoder
openh264:  openh264enc: OpenH264 video encoder
openjpeg:  openjpegdec: OpenJPEG JPEG2000 decoder
openjpeg:  openjpegenc: OpenJPEG JPEG2000 encoder
openmpt:  openmptdec: OpenMPT-based module music decoder
openni2:  openni2src: Openni2 client source
opus:  opusdec: Opus audio decoder
opus:  opusenc: Opus audio encoder
opusparse:  opusparse: Opus audio parser
oss4:  oss4sink: OSS v4 Audio Sink
oss4:  oss4src: OSS v4 Audio Source
ossaudio:  osssink: Audio Sink (OSS)
ossaudio:  osssrc: Audio Source (OSS)
overlaycomposition:  overlaycomposition: Overlay Composition
pango:  clockoverlay: Clock overlay
pango:  textoverlay: Text overlay
pango:  textrender: Text renderer
pango:  timeoverlay: Time overlay
pbtypes:  GstVideoMultiviewFlagsSet (GstDynamicTypeFactory)
pcapparse:  irtspparse: IRTSPParse
pcapparse:  pcapparse: PCapParse
playback:  decodebin: Decoder Bin
playback:  decodebin3: Decoder Bin 3
playback:  parsebin: Parse Bin
playback:  playbin: Player Bin 2
playback:  playbin3: Player Bin 3
playback:  playsink: Player Sink
playback:  streamsynchronizer: Stream Synchronizer
playback:  subtitleoverlay: Subtitle Overlay
playback:  uridecodebin: URI Decoder
playback:  uridecodebin3: URI Decoder
playback:  urisourcebin: URI reader
png:  pngdec: PNG image decoder
png:  pngenc: PNG image encoder
pnm:  pnmdec: PNM image decoder
pnm:  pnmenc: PNM image encoder
proxy:  proxysink: Proxy Sink
proxy:  proxysrc: Proxy source
pulseaudio:  pulsedeviceprovider (GstDeviceProviderFactory)
pulseaudio:  pulsesink: PulseAudio Audio Sink
pulseaudio:  pulsesrc: PulseAudio Audio Source
qroverlay:  debugqroverlay: qroverlay
qroverlay:  qroverlay: qroverlay
rawparse:  rawaudioparse: rawaudioparse
rawparse:  rawvideoparse: rawvideoparse
rawparse:  unalignedaudioparse: unalignedaudioparse
rawparse:  unalignedvideoparse: unalignedvideoparse
realmedia:  pnmsrc: PNM packet receiver
realmedia:  rademux: RealAudio Demuxer
realmedia:  rdtdepay: RDT packet parser
realmedia:  rdtmanager: RTP Decoder
realmedia:  rmdemux: RealMedia Demuxer
realmedia:  rtspreal: RealMedia RTSP Extension
removesilence:  removesilence: RemoveSilence
replaygain:  rganalysis: ReplayGain analysis
replaygain:  rglimiter: ReplayGain limiter
replaygain:  rgvolume: ReplayGain volume
resindvd:  rsndvdbin: rsndvdbin
rfbsrc:  rfbsrc: Rfb source
rist:  ristrtpdeext: RIST RTP Extension remover
rist:  ristrtpext: RIST RTP Extension adder
rist:  ristrtxreceive: RIST Retransmission receiver
rist:  ristrtxsend: RIST Retransmission Sender
rist:  ristsink: RIST Sink
rist:  ristsrc: RIST Source
rist:  roundrobin: Round Robin
rsvg:  rsvgdec: SVG image decoder
rsvg:  rsvgoverlay: RSVG overlay
rtmp:  rtmpsink: RTMP output sink
rtmp:  rtmpsrc: RTMP Source
rtmp2:  rtmp2sink: RTMP sink element
rtmp2:  rtmp2src: RTMP source element
rtp:  asteriskh263: RTP Asterisk H263 depayloader
rtp:  rtpL16depay: RTP audio depayloader
rtp:  rtpL16pay: RTP audio payloader
rtp:  rtpL24depay: RTP audio depayloader
rtp:  rtpL24pay: RTP audio payloader
rtp:  rtpL8depay: RTP audio depayloader
rtp:  rtpL8pay: RTP audio payloader
rtp:  rtpac3depay: RTP AC3 depayloader
rtp:  rtpac3pay: RTP AC3 audio payloader
rtp:  rtpamrdepay: RTP AMR depayloader
rtp:  rtpamrpay: RTP AMR payloader
rtp:  rtpbvdepay: RTP BroadcomVoice depayloader
rtp:  rtpbvpay: RTP BV Payloader
rtp:  rtpceltdepay: RTP CELT depayloader
rtp:  rtpceltpay: RTP CELT payloader
rtp:  rtpdvdepay: RTP DV Depayloader
rtp:  rtpdvpay: RTP DV Payloader
rtp:  rtpg722depay: RTP audio depayloader
rtp:  rtpg722pay: RTP audio payloader
rtp:  rtpg723depay: RTP G.723 depayloader
rtp:  rtpg723pay: RTP G.723 payloader
rtp:  rtpg726depay: RTP G.726 depayloader
rtp:  rtpg726pay: RTP G.726 payloader
rtp:  rtpg729depay: RTP G.729 depayloader
rtp:  rtpg729pay: RTP G.729 payloader
rtp:  rtpgsmdepay: RTP GSM depayloader
rtp:  rtpgsmpay: RTP GSM payloader
rtp:  rtpgstdepay: GStreamer depayloader
rtp:  rtpgstpay: RTP GStreamer payloader
rtp:  rtph261depay: RTP H261 depayloader
rtp:  rtph261pay: RTP H261 packet payloader
rtp:  rtph263depay: RTP H263 depayloader
rtp:  rtph263pay: RTP H263 packet payloader
rtp:  rtph263pdepay: RTP H263 depayloader
rtp:  rtph263ppay: RTP H263 payloader
rtp:  rtph264depay: RTP H264 depayloader
rtp:  rtph264pay: RTP H264 payloader
rtp:  rtph265depay: RTP H265 depayloader
rtp:  rtph265pay: RTP H265 payloader
rtp:  rtphdrextcolorspace: Color Space
rtp:  rtpilbcdepay: RTP iLBC depayloader
rtp:  rtpilbcpay: RTP iLBC Payloader
rtp:  rtpisacdepay: RTP iSAC depayloader
rtp:  rtpisacpay: RTP iSAC payloader
rtp:  rtpj2kdepay: RTP JPEG 2000 depayloader
rtp:  rtpj2kpay: RTP JPEG 2000 payloader
rtp:  rtpjpegdepay: RTP JPEG depayloader
rtp:  rtpjpegpay: RTP JPEG payloader
rtp:  rtpklvdepay: RTP KLV Depayloader
rtp:  rtpklvpay: RTP KLV Payloader
rtp:  rtpldacpay: RTP packet payloader
rtp:  rtpmp1sdepay: RTP MPEG1 System Stream depayloader
rtp:  rtpmp2tdepay: RTP MPEG Transport Stream depayloader
rtp:  rtpmp2tpay: RTP MPEG2 Transport Stream payloader
rtp:  rtpmp4adepay: RTP MPEG4 audio depayloader
rtp:  rtpmp4apay: RTP MPEG4 audio payloader
rtp:  rtpmp4gdepay: RTP MPEG4 ES depayloader
rtp:  rtpmp4gpay: RTP MPEG4 ES payloader
rtp:  rtpmp4vdepay: RTP MPEG4 video depayloader
rtp:  rtpmp4vpay: RTP MPEG4 Video payloader
rtp:  rtpmpadepay: RTP MPEG audio depayloader
rtp:  rtpmpapay: RTP MPEG audio payloader
rtp:  rtpmparobustdepay: RTP MPEG audio depayloader
rtp:  rtpmpvdepay: RTP MPEG video depayloader
rtp:  rtpmpvpay: RTP MPEG2 ES video payloader
rtp:  rtpopusdepay: RTP Opus packet depayloader
rtp:  rtpopuspay: RTP Opus payloader
rtp:  rtppcmadepay: RTP PCMA depayloader
rtp:  rtppcmapay: RTP PCMA payloader
rtp:  rtppcmudepay: RTP PCMU depayloader
rtp:  rtppcmupay: RTP PCMU payloader
rtp:  rtpqcelpdepay: RTP QCELP depayloader
rtp:  rtpqdm2depay: RTP QDM2 depayloader
rtp:  rtpreddec: Redundant Audio Data (RED) Decoder
rtp:  rtpredenc: Redundant Audio Data (RED) Encoder
rtp:  rtpsbcdepay: RTP SBC audio depayloader
rtp:  rtpsbcpay: RTP packet payloader
rtp:  rtpsirendepay: RTP Siren packet depayloader
rtp:  rtpsirenpay: RTP Payloader for Siren Audio
rtp:  rtpspeexdepay: RTP Speex depayloader
rtp:  rtpspeexpay: RTP Speex payloader
rtp:  rtpstorage: RTP storage
rtp:  rtpstreamdepay: RTP Stream Depayloading
rtp:  rtpstreampay: RTP Stream Payloading
rtp:  rtpsv3vdepay: RTP SVQ3 depayloader
rtp:  rtptheoradepay: RTP Theora depayloader
rtp:  rtptheorapay: RTP Theora payloader
rtp:  rtpulpfecdec: RTP FEC Decoder
rtp:  rtpulpfecenc: RTP FEC Encoder
rtp:  rtpvorbisdepay: RTP Vorbis depayloader
rtp:  rtpvorbispay: RTP Vorbis payloader
rtp:  rtpvp8depay: RTP VP8 depayloader
rtp:  rtpvp8pay: RTP VP8 payloader
rtp:  rtpvp9depay: RTP VP9 depayloader
rtp:  rtpvp9pay: RTP VP9 payloader
rtp:  rtpvrawdepay: RTP Raw Video depayloader
rtp:  rtpvrawpay: RTP Raw Video payloader
rtpmanager:  rtpbin: RTP Bin
rtpmanager:  rtpdtmfmux: RTP muxer
rtpmanager:  rtpfunnel: RTP funnel
rtpmanager:  rtphdrextclientaudiolevel: Client-to-Mixer Audio Level Indication (RFC6464) RTP Header Extension
rtpmanager:  rtphdrexttwcc: Transport Wide Congestion Control
rtpmanager:  rtpjitterbuffer: RTP packet jitter-buffer
rtpmanager:  rtpmux: RTP muxer
rtpmanager:  rtpptdemux: RTP Demux
rtpmanager:  rtprtxqueue: RTP Retransmission Queue
rtpmanager:  rtprtxreceive: RTP Retransmission receiver
rtpmanager:  rtprtxsend: RTP Retransmission Sender
rtpmanager:  rtpsession: RTP Session
rtpmanager:  rtpssrcdemux: RTP SSRC Demux
rtpmanager:  rtpst2022-1-fecdec: SMPTE 2022-1 FEC decoder
rtpmanager:  rtpst2022-1-fecenc: SMPTE 2022-1 FEC encoder
rtpmanagerbad:  rtpsink: RTP Sink element
rtpmanagerbad:  rtpsrc: RTP Source element
rtponvif:  rtponvifparse: ONVIF NTP timestamps RTP extension
rtponvif:  rtponviftimestamp: ONVIF NTP timestamps RTP extension
rtsp:  rtpdec: RTP Decoder
rtsp:  rtspsrc: RTSP packet receiver
sbc:  sbcdec: Bluetooth SBC audio decoder
sbc:  sbcenc: Bluetooth SBC audio encoder
sctp:  sctpdec: SCTP Decoder
sctp:  sctpenc: SCTP Encoder
sdpelem:  sdpdemux: SDP session setup
sdpelem:  sdpsrc: SDP Source
segmentclip:  audiosegmentclip: Audio buffer segment clipper
segmentclip:  videosegmentclip: Video buffer segment clipper
shapewipe:  shapewipe: Shape Wipe transition filter
shm:  shmsink: Shared Memory Sink
shm:  shmsrc: Shared Memory Source
shout2:  shout2send: Icecast network sink
sid:  siddec: Sid decoder
siren:  sirendec: Siren Decoder element
siren:  sirenenc: Siren Encoder element
smooth:  smooth: Smooth effect
smoothstreaming:  mssdemux: Smooth Streaming demuxer
smpte:  smpte: SMPTE transitions
smpte:  smptealpha: SMPTE transitions
sndfile:  sfdec: Sndfile decoder
soundtouch:  bpmdetect: BPM Detector
soundtouch:  pitch: Pitch controller
soup:  souphttpclientsink: HTTP client sink
soup:  souphttpsrc: HTTP client source
spandsp:  dtmfdetect: DTMF detector element
spandsp:  spanplc: SpanDSP PLC
spandsp:  tonegeneratesrc: Telephony Tone  Generator source
spectrum:  spectrum: Spectrum analyzer
speed:  speed: Speed
speex:  speexdec: Speex audio decoder
speex:  speexenc: Speex audio encoder
srt:  srtclientsink: SRT sink
srt:  srtclientsrc: SRT source
srt:  srtserversink: SRT sink
srt:  srtserversrc: SRT source
srt:  srtsink: SRT sink
srt:  srtsrc: SRT source
srtp:  srtpdec: SRTP decoder
srtp:  srtpenc: SRTP encoder
staticelements:  bin: Generic bin
staticelements:  pipeline: Pipeline object
subenc:  srtenc: Srt encoder
subenc:  webvttenc: WebVTT encoder
subparse:  ssaparse: SSA Subtitle Parser
subparse:  subparse: Subtitle parser
subparse: subparse_typefind: srt, sub, mpsub, mdvd, smi, txt, dks, vtt
switchbin:  switchbin: switchbin
taglib:  apev2mux: TagLib-based APEv2 Muxer
taglib:  id3v2mux: TagLib-based ID3v2 Muxer
tcp:  multifdsink: Multi filedescriptor sink
tcp:  multisocketsink: Multi socket sink
tcp:  socketsrc: socket source
tcp:  tcpclientsink: TCP client sink
tcp:  tcpclientsrc: TCP client source
tcp:  tcpserversink: TCP server sink
tcp:  tcpserversrc: TCP server source
teletext:  teletextdec: Teletext decoder
theora:  theoradec: Theora video decoder
theora:  theoraenc: Theora video encoder
theora:  theoraparse: Theora video parser
timecode:  avwait: Timecode Wait
timecode:  timecodestamper: Timecode stamper
transcode:  transcodebin: Transcode Bin
transcode:  uritranscodebin: URITranscode Bin
ttmlsubs:  ttmlparse: TTML subtitle parser
ttmlsubs:  ttmlrender: TTML subtitle renderer
twolame:  twolamemp2enc: TwoLAME mp2 encoder
typefindfunctions: application/dash+xml: mpd, MPD
typefindfunctions: application/itc: itc
typefindfunctions: application/msword: doc
typefindfunctions: application/mxf: mxf
typefindfunctions: application/octet-stream: no extensions
typefindfunctions: application/ogg: ogg, oga, ogv, ogm, ogx, spx, anx, axa, axv
typefindfunctions: application/pdf: pdf
typefindfunctions: application/postscript: ps
typefindfunctions: application/sdp: sdp
typefindfunctions: application/smil: smil
typefindfunctions: application/ttml+xml: ttml+xml
typefindfunctions: application/vnd.apple-fcp+xml: fcpxml
typefindfunctions: application/vnd.apple-xmeml+xml: xmeml
typefindfunctions: application/vnd.ms-sstr+xml: no extensions
typefindfunctions: application/vnd.pixar.opentimelineio+json: otio
typefindfunctions: application/vnd.rn-realmedia: ra, ram, rm, rmvb
typefindfunctions: application/x-3gp: 3gp
typefindfunctions: application/x-ape: ape
typefindfunctions: application/x-apetag: mp3, ape, mpc, wv
typefindfunctions: application/x-ar: a
typefindfunctions: application/x-bzip: bz2
typefindfunctions: application/x-compress: Z
typefindfunctions: application/x-executable: no extensions
typefindfunctions: application/x-gzip: gz
typefindfunctions: application/x-hls: m3u8
typefindfunctions: application/x-id3v1: mp3, mp2, mp1, mpga, ogg, flac, tta
typefindfunctions: application/x-id3v2: mp3, mp2, mp1, mpga, ogg, flac, tta
typefindfunctions: application/x-mcc: mcc
typefindfunctions: application/x-mmsh: no extensions
typefindfunctions: application/x-ms-dos-executable: dll, exe, ocx, sys, scr, msstyles, cpl
typefindfunctions: application/x-ogg-skeleton: no extensions
typefindfunctions: application/x-ogm-audio: no extensions
typefindfunctions: application/x-ogm-text: no extensions
typefindfunctions: application/x-ogm-video: no extensions
typefindfunctions: application/x-pn-realaudio: ra, ram, rm, rmvb
typefindfunctions: application/x-rar: rar
typefindfunctions: application/x-scc: scc
typefindfunctions: application/x-shockwave-flash: swf, swfl
typefindfunctions: application/x-ssa: ssa, ass
typefindfunctions: application/x-subtitle-vtt: vtt
typefindfunctions: application/x-tar: tar
typefindfunctions: application/x-yuv4mpeg: no extensions
typefindfunctions: application/xges: xges
typefindfunctions: application/xml: xml
typefindfunctions: application/zip: zip
typefindfunctions: audio/aac: aac, adts, adif, loas
typefindfunctions: audio/audible: aa, aax
typefindfunctions: audio/iLBC-sh: ilbc
typefindfunctions: audio/midi: mid, midi
typefindfunctions: audio/mobile-xmf: mxmf
typefindfunctions: audio/mpeg: mp3, mp2, mp1, mpga
typefindfunctions: audio/qcelp: qcp
typefindfunctions: audio/riff-midi: mid, midi
typefindfunctions: audio/x-ac3: ac3, eac3
typefindfunctions: audio/x-aiff: aiff, aif, aifc
typefindfunctions: audio/x-amr-nb-sh: amr
typefindfunctions: audio/x-amr-wb-sh: amr
typefindfunctions: audio/x-au: au, snd
typefindfunctions: audio/x-ay: ay
typefindfunctions: audio/x-caf: caf
typefindfunctions: audio/x-celt: no extensions
typefindfunctions: audio/x-dts: dts
typefindfunctions: audio/x-flac: flac
typefindfunctions: audio/x-gbs: gbs
typefindfunctions: audio/x-gsm: gsm
typefindfunctions: audio/x-gym: gym
typefindfunctions: audio/x-imelody: imy, ime, imelody
typefindfunctions: audio/x-ircam: sf
typefindfunctions: audio/x-kss: kss
typefindfunctions: audio/x-m4a: m4a
typefindfunctions: audio/x-mod: 669, amf, ams, dbm, digi, dmf, dsm, gdm, far, imf, it, j2b, mdl, med, mod, mt2, mtm, okt, psm, ptm, sam, s3m, stm, stx, ult, umx, xm
typefindfunctions: audio/x-musepack: mpc, mpp, mp+
typefindfunctions: audio/x-nist: nist
typefindfunctions: audio/x-nsf: nsf
typefindfunctions: audio/x-paris: paf
typefindfunctions: audio/x-rf64: rf64
typefindfunctions: audio/x-sap: sap
typefindfunctions: audio/x-sbc: sbc
typefindfunctions: audio/x-sds: sds
typefindfunctions: audio/x-shorten: shn
typefindfunctions: audio/x-sid: sid
typefindfunctions: audio/x-spc: spc
typefindfunctions: audio/x-speex: no extensions
typefindfunctions: audio/x-svx: iff, svx
typefindfunctions: audio/x-tap-dmp: dmp
typefindfunctions: audio/x-tap-tap: tap
typefindfunctions: audio/x-ttafile: tta
typefindfunctions: audio/x-vgm: vgm
typefindfunctions: audio/x-voc: voc
typefindfunctions: audio/x-vorbis: no extensions
typefindfunctions: audio/x-w64: w64
typefindfunctions: audio/x-wav: wav
typefindfunctions: audio/x-wavpack: wv, wvp
typefindfunctions: audio/x-wavpack-correction: wvc
typefindfunctions: audio/x-xi: xi
typefindfunctions: image/bmp: bmp
typefindfunctions: image/gif: gif
typefindfunctions: image/jp2: jp2
typefindfunctions: image/jpeg: jpg, jpe, jpeg
typefindfunctions: image/png: png
typefindfunctions: image/svg+xml: svg
typefindfunctions: image/tiff: tif, tiff
typefindfunctions: image/vnd.adobe.photoshop: psd
typefindfunctions: image/vnd.wap.wbmp: no extensions
typefindfunctions: image/webp: webp
typefindfunctions: image/x-degas: no extensions
typefindfunctions: image/x-exr: exr
typefindfunctions: image/x-icon: no extensions
typefindfunctions: image/x-jng: jng
typefindfunctions: image/x-jpc: jpc, j2k
typefindfunctions: image/x-portable-pixmap: pnm, ppm, pgm, pbm
typefindfunctions: image/x-quicktime: qif, qtif, qti
typefindfunctions: image/x-sun-raster: ras
typefindfunctions: image/x-xcf: xcf
typefindfunctions: image/x-xpixmap: xpm
typefindfunctions: multipart/x-mixed-replace: no extensions
typefindfunctions: subtitle/x-kate: no extensions
typefindfunctions: text/html: htm, html
typefindfunctions: text/plain: txt
typefindfunctions: text/uri-list: ram
typefindfunctions: text/utf-16: txt
typefindfunctions: text/utf-32: txt
typefindfunctions: text/x-cmml: no extensions
typefindfunctions: video/mj2: mj2
typefindfunctions: video/mpeg-elementary: mpv, mpeg, mpg
typefindfunctions: video/mpeg-sys: mpe, mpeg, mpg
typefindfunctions: video/mpeg4: m4v
typefindfunctions: video/mpegts: ts, mts
typefindfunctions: video/quicktime: mov, mp4
typefindfunctions: video/vivo: viv
typefindfunctions: video/x-cdxa: dat
typefindfunctions: video/x-dirac: no extensions
typefindfunctions: video/x-dv: dv, dif
typefindfunctions: video/x-fli: flc, fli
typefindfunctions: video/x-flv: flv
typefindfunctions: video/x-h263: h263, 263
typefindfunctions: video/x-h264: h264, x264, 264
typefindfunctions: video/x-h265: h265, x265, 265
typefindfunctions: video/x-ivf: ivf
typefindfunctions: video/x-matroska: mkv, mka, mk3d, webm
typefindfunctions: video/x-mng: mng
typefindfunctions: video/x-ms-asf: asf, wm, wma, wmv
typefindfunctions: video/x-msvideo: avi
typefindfunctions: video/x-mve: mve
typefindfunctions: video/x-nuv: nuv
typefindfunctions: video/x-pva: pva
typefindfunctions: video/x-theora: no extensions
typefindfunctions: video/x-vcd: dat
udp:  dynudpsink: UDP packet sender
udp:  multiudpsink: UDP packet sender
udp:  udpsink: UDP packet sender
udp:  udpsrc: UDP packet receiver
uvch264:  uvch264deviceprovider (GstDeviceProviderFactory)
uvch264:  uvch264mjpgdemux: UVC H264 MJPG Demuxer
uvch264:  uvch264src: UVC H264 Source
va:  vaav1dec: VA-API AV1 Decoder
va:  vadeinterlace: VA-API Deinterlacer
va:  vah264dec: VA-API H.264 Decoder
va:  vah265dec: VA-API H.265 Decoder
va:  vampeg2dec: VA-API Mpeg2 Decoder
va:  vapostproc: VA-API Video Postprocessor
va:  vavp9dec: VA-API VP9 Decoder
vaapi:  vaapiav1dec: VA-API AV1 decoder
vaapi:  vaapidecodebin: VA-API Decode Bin
vaapi:  vaapih264dec: VA-API H264 decoder
vaapi:  vaapih264enc: VA-API H264 encoder
vaapi:  vaapih265dec: VA-API H265 decoder
vaapi:  vaapih265enc: VA-API H265 encoder
vaapi:  vaapijpegdec: VA-API JPEG decoder
vaapi:  vaapijpegenc: VA-API JPEG encoder
vaapi:  vaapimpeg2dec: VA-API MPEG2 decoder
vaapi:  vaapimpeg2enc: VA-API MPEG-2 encoder
vaapi:  vaapioverlay: VA-API overlay
vaapi:  vaapipostproc: VA-API video postprocessing
vaapi:  vaapisink: VA-API sink
vaapi:  vaapivc1dec: VA-API VC1 decoder
vaapi:  vaapivp9dec: VA-API VP9 decoder
vaapi:  vaapivp9enc: VA-API VP9 encoder
video4linux2:  v4l2deviceprovider (GstDeviceProviderFactory)
video4linux2:  v4l2radio: Radio (video4linux2) Tuner
video4linux2:  v4l2sink: Video (video4linux2) Sink
video4linux2:  v4l2src: Video (video4linux2) Source
videobox:  videobox: Video box filter
videoconvert:  videoconvert: Colorspace converter
videocrop:  aspectratiocrop: aspectratiocrop
videocrop:  videocrop: Crop
videofilter:  gamma: Video gamma correction
videofilter:  videobalance: Video balance
videofilter:  videoflip: Video flipper
videofilter:  videomedian: Median effect
videofiltersbad:  scenechange: Scene change detector
videofiltersbad:  videodiff: Video Diff
videofiltersbad:  zebrastripe: Zebra stripe overlay
videoframe_audiolevel:  videoframe-audiolevel: Video-frame audio level
videomixer:  videomixer: Video mixer 2
videoparsersbad:  av1parse: AV1 parser
videoparsersbad:  diracparse: Dirac parser
videoparsersbad:  h263parse: H.263 parser
videoparsersbad:  h264parse: H.264 parser
videoparsersbad:  h265parse: H.265 parser
videoparsersbad:  jpeg2000parse: JPEG 2000 parser
videoparsersbad:  mpeg4videoparse: MPEG 4 video elementary stream parser
videoparsersbad:  mpegvideoparse: MPEG video elementary stream parser
videoparsersbad:  pngparse: PNG parser
videoparsersbad:  vc1parse: VC1 parser
videoparsersbad:  vp9parse: VP9 parser
videorate:  videorate: Video rate adjuster
videoscale:  videoscale: Video scaler
videosignal:  simplevideomark: Video marker
videosignal:  simplevideomarkdetect: Video detecter
videosignal:  videoanalyse: Video analyser
videotestsrc:  videotestsrc: Video test source
vmnc:  vmncdec: VMnc video decoder
voaacenc:  voaacenc: AAC audio encoder
voamrwbenc:  voamrwbenc: AMR-WB audio encoder
volume:  volume: Volume
vorbis:  vorbisdec: Vorbis audio decoder
vorbis:  vorbisenc: Vorbis audio encoder
vorbis:  vorbisparse: VorbisParse
vorbis:  vorbistag: VorbisTag
vpx:  vp8dec: On2 VP8 Decoder
vpx:  vp8enc: On2 VP8 Encoder
vpx:  vp9dec: On2 VP9 Decoder
vpx:  vp9enc: On2 VP9 Encoder
wavenc:  wavenc: WAV audio muxer
wavpack:  wavpackdec: Wavpack audio decoder
wavpack:  wavpackenc: Wavpack audio encoder
wavparse:  wavparse: WAV audio demuxer
waylandsink:  waylandsink: wayland video sink
webp:  webpdec: WebP image decoder
webp:  webpenc: WEBP image encoder
webrtc:  webrtcbin: WebRTC Bin
webrtcdsp:  webrtcdsp: Voice Processor (AGC, AEC, filters, etc.)
webrtcdsp:  webrtcechoprobe: Acoustic Echo Canceller probe
wildmidi:  wildmididec: WildMidi-based MIDI music decoder
x264:  x264enc: x264 H.264 Encoder
x265:  x265enc: x265enc
ximagesink:  ximagesink: Video sink
ximagesrc:  ximagesrc: Ximage video source
xingmux:  xingmux: MP3 Xing muxer
xvimagesink:  xvimagesink: Video sink
y4mdec:  y4mdec: YUV4MPEG demuxer/decoder
y4menc:  y4menc: YUV4MPEG video encoder
zbar:  zbar: Barcode detector
zxing:  zxing: Barcode detector

Total count: 257 plugins (1 blacklist entry not shown), 906 features


Client:
1394:  dv1394src: Firewire (1394) DV video source
1394:  hdv1394src: Firewire (1394) HDV video source
a52dec:  a52dec: ATSC A/52 audio decoder
aasink:  aasink: ASCII art video sink
aasink:  aatv: aaTV effect
accurip:  accurip: AccurateRip(TM) CRC element
adder:  adder: Adder
adpcmdec:  adpcmdec: ADPCM decoder
adpcmenc:  adpcmenc: ADPCM encoder
aes:  aesdec: aesdec
aes:  aesenc: aesenc
aiff:  aiffmux: AIFF audio muxer
aiff:  aiffparse: AIFF audio demuxer
alaw:  alawdec: A Law audio decoder
alaw:  alawenc: A Law audio encoder
alpha:  alpha: Alpha filter
alphacolor:  alphacolor: Alpha color filter
alsa:  alsadeviceprovider (GstDeviceProviderFactory)
alsa:  alsamidisrc: AlsaMidi Source
alsa:  alsasink: Audio sink (ALSA)
alsa:  alsasrc: Audio source (ALSA)
amrnb:  amrnbdec: AMR-NB audio decoder
amrnb:  amrnbenc: AMR-NB audio encoder
amrwbdec:  amrwbdec: AMR-WB audio decoder
aom:  av1dec: AV1 Decoder
aom:  av1enc: AV1 Encoder
apetag:  apedemux: APE tag demuxer
app:  appsink: AppSink
app:  appsrc: AppSrc
asf:  asfdemux: ASF Demuxer
asf:  rtpasfdepay: RTP ASF packet depayloader
asf:  rtspwms: WMS RTSP Extension
asfmux:  asfmux: ASF muxer
asfmux:  asfparse: ASF parser
asfmux:  rtpasfpay: RTP ASF payloader
assrender:  assrender: ASS/SSA Render
audiobuffersplit:  audiobuffersplit: Audio Buffer Split
audioconvert:  audioconvert: Audio converter
audiofx:  audioamplify: Audio amplifier
audiofx:  audiochebband: Band pass & band reject filter
audiofx:  audiocheblimit: Low pass & high pass filter
audiofx:  audiodynamic: Dynamic range controller
audiofx:  audioecho: Audio echo
audiofx:  audiofirfilter: Audio FIR filter
audiofx:  audioiirfilter: Audio IIR filter
audiofx:  audioinvert: Audio inversion
audiofx:  audiokaraoke: AudioKaraoke
audiofx:  audiopanorama: Stereo positioning
audiofx:  audiowsincband: Band pass & band reject filter
audiofx:  audiowsinclimit: Low pass & high pass filter
audiofx:  scaletempo: Scaletempo
audiofx:  stereo: Stereo effect
audiofxbad:  audiochannelmix: Simple stereo audio mixer
audiolatency:  audiolatency: AudioLatency
audiomixer:  audiointerleave: AudioInterleave
audiomixer:  audiomixer: AudioMixer
audiomixer:  liveadder: AudioMixer
audiomixmatrix:  audiomixmatrix: Matrix audio mix
audioparsers:  aacparse: AAC audio stream parser
audioparsers:  ac3parse: AC3 audio stream parser
audioparsers:  amrparse: AMR audio stream parser
audioparsers:  dcaparse: DTS Coherent Acoustics audio stream parser
audioparsers:  flacparse: FLAC audio parser
audioparsers:  mpegaudioparse: MPEG1 Audio Parser
audioparsers:  sbcparse: SBC audio parser
audioparsers:  wavpackparse: Wavpack audio stream parser
audiorate:  audiorate: Audio rate adjuster
audioresample:  audioresample: Audio resampler
audiotestsrc:  audiotestsrc: Audio test source
audiovisualizers:  spacescope: Stereo visualizer
audiovisualizers:  spectrascope: Frequency spectrum scope
audiovisualizers:  synaescope: Synaescope
audiovisualizers:  wavescope: Waveform oscilloscope
auparse:  auparse: AU audio demuxer
autoconvert:  autoconvert: Select converter based on caps
autoconvert:  autovideoconvert: Select color space converter based on caps
autodetect:  autoaudiosink: Auto audio sink
autodetect:  autoaudiosrc: Auto audio source
autodetect:  autovideosink: Auto video sink
autodetect:  autovideosrc: Auto video source
avi:  avidemux: Avi demuxer
avi:  avimux: Avi muxer
avi:  avisubtitle: Avi subtitle parser
avtp:  avtpaafdepay: AVTP Audio Format (AAF) depayloader
avtp:  avtpaafpay: AVTP Audio Format (AAF) payloader
avtp:  avtpcrfcheck: Clock Reference Format (CRF) Checker
avtp:  avtpcrfsync: Clock Reference Format (CRF) Synchronizer
avtp:  avtpcvfdepay: AVTP Compressed Video Format (CVF) depayloader
avtp:  avtpcvfpay: AVTP Compressed Video Format (CVF) payloader
avtp:  avtpsink: Audio/Video Transport Protocol (AVTP) Sink
avtp:  avtpsrc: Audio/Video Transport Protocol (AVTP) Source
bayer:  bayer2rgb: Bayer to RGB decoder for cameras
bayer:  rgb2bayer: RGB to Bayer converter
bluez:  a2dpsink: Bluetooth A2DP sink
bluez:  avdtpsink: Bluetooth AVDTP sink
bluez:  avdtpsrc: Bluetooth AVDTP Source
bs2b:  bs2b: Crossfeed effect
bz2:  bz2dec: BZ2 decoder
bz2:  bz2enc: BZ2 encoder
cacasink:  cacasink: A colored ASCII art video sink
cacasink:  cacatv: CacaTV effect
cairo:  cairooverlay: Cairo overlay
camerabin:  camerabin: Camera Bin
camerabin:  viewfinderbin: Viewfinder Bin
camerabin:  wrappercamerabinsrc: Wrapper camera src element for camerabin2
cdio:  cdiocddasrc: CD audio source (CDDA)
cdparanoia:  cdparanoiasrc: CD Audio (cdda) Source, Paranoia IV
chromaprint:  chromaprint: Chromaprint fingerprinting element
closedcaption:  cc708overlay: Closed Caption overlay
closedcaption:  cccombiner: Closed Caption Combiner
closedcaption:  ccconverter: Closed Caption Converter
closedcaption:  ccextractor: Closed Caption Extractor
closedcaption:  line21decoder: Line 21 CC Decoder
closedcaption:  line21encoder: Line 21 CC Encoder
codecalpha:  alphacombine: Alpha Combiner
codecalpha:  codecalphademux: CODEC Alpha Demuxer
codecalpha:  vp8alphadecodebin: VP8 Alpha Decoder
codecalpha:  vp9alphadecodebin: VP9 Alpha Decoder
coloreffects:  chromahold: Chroma hold filter
coloreffects:  coloreffects: Color Look-up Table filter
colormanagement:  lcms: LCMS2 ICC correction
compositor:  compositor: Compositor
coreelements:  capsfilter: CapsFilter
coreelements:  clocksync: ClockSync
coreelements:  concat: Concat
coreelements:  dataurisrc: data: URI source element
coreelements:  downloadbuffer: DownloadBuffer
coreelements:  fakesink: Fake Sink
coreelements:  fakesrc: Fake Source
coreelements:  fdsink: Filedescriptor Sink
coreelements:  fdsrc: Filedescriptor Source
coreelements:  filesink: File Sink
coreelements:  filesrc: File Source
coreelements:  funnel: Funnel pipe fitting
coreelements:  identity: Identity
coreelements:  input-selector: Input selector
coreelements:  multiqueue: MultiQueue
coreelements:  output-selector: Output selector
coreelements:  queue: Queue
coreelements:  queue2: Queue 2
coreelements:  streamiddemux: Streamid Demux
coreelements:  tee: Tee pipe fitting
coreelements:  typefind: TypeFind
coreelements:  valve: Valve element
coretracers:  factories (GstTracerFactory)
coretracers:  latency (GstTracerFactory)
coretracers:  leaks (GstTracerFactory)
coretracers:  log (GstTracerFactory)
coretracers:  rusage (GstTracerFactory)
coretracers:  stats (GstTracerFactory)
curl:  curlfilesink: Curl file sink
curl:  curlftpsink: Curl ftp sink
curl:  curlhttpsink: Curl http sink
curl:  curlhttpsrc: HTTP Client Source using libcURL
curl:  curlsftpsink: Curl sftp sink
curl:  curlsmtpsink: Curl smtp sink
cutter:  cutter: Audio cutter
dash:  dashdemux: DASH Demuxer
dash:  dashsink: DASH Sink
dc1394:  dc1394src: 1394 IIDC Video Source
de265:  libde265dec: HEVC/H.265 decoder
debug:  breakmydata: Break my data
debug:  capssetter: CapsSetter
debug:  cpureport: CPU report
debug:  navseek: Seek based on left-right arrows
debug:  progressreport: Progress report
debug:  pushfilesrc: Push File Source
debug:  rndbuffersize: Random buffer size
debug:  taginject: TagInject
debug:  testsink: Test plugin
debugutilsbad:  checksumsink: Checksum sink
debugutilsbad:  chopmydata: Chop my data
debugutilsbad:  clockselect: Clock select
debugutilsbad:  compare: Compare buffers
debugutilsbad:  debugspy: DebugSpy
debugutilsbad:  errorignore: Convert some GstFlowReturn types into others
debugutilsbad:  fakeaudiosink: Fake Audio Sink
debugutilsbad:  fakevideosink: Fake Video Sink
debugutilsbad:  fpsdisplaysink: Measure and show framerate on videosink
debugutilsbad:  testsrcbin: Generic bin
debugutilsbad:  videocodectestsink: Video CODEC Test Sink
debugutilsbad:  watchdog: Watchdog
decklink:  decklinkaudiosink: Decklink Audio Sink
decklink:  decklinkaudiosrc: Decklink Audio Source
decklink:  decklinkdeviceprovider (GstDeviceProviderFactory)
decklink:  decklinkvideosink: Decklink Video Sink
decklink:  decklinkvideosrc: Decklink Video Source
deinterlace:  deinterlace: Deinterlacer
dtls:  dtlsdec: DTLS Decoder
dtls:  dtlsenc: DTLS Encoder
dtls:  dtlssrtpdec: DTLS-SRTP Decoder
dtls:  dtlssrtpdemux: DTLS SRTP Demultiplexer
dtls:  dtlssrtpenc: DTLS-SRTP Encoder
dtmf:  dtmfsrc: DTMF tone generator
dtmf:  rtpdtmfdepay: RTP DTMF packet depayloader
dtmf:  rtpdtmfsrc: RTP DTMF packet generator
dtsdec:  dtsdec: DTS audio decoder
dv:  dvdec: DV video decoder
dv:  dvdemux: DV system stream demuxer
dvb:  dvbbasebin: DVB bin
dvb:  dvbsrc: DVB Source
dvbsubenc:  dvbsubenc: DVB subtitle encoder
dvbsuboverlay:  dvbsuboverlay: DVB Subtitles Overlay
dvdlpcmdec:  dvdlpcmdec: DVD LPCM Audio decoder
dvdread:  dvdreadsrc: DVD Source
dvdspu:  dvdspu: Sub-picture Overlay
dvdsub:  dvdsubdec: DVD subtitle decoder
dvdsub:  dvdsubparse: DVD subtitle parser
effectv:  agingtv: AgingTV effect
effectv:  dicetv: DiceTV effect
effectv:  edgetv: EdgeTV effect
effectv:  optv: OpTV effect
effectv:  quarktv: QuarkTV effect
effectv:  radioactv: RadioacTV effect
effectv:  revtv: RevTV effect
effectv:  rippletv: RippleTV effect
effectv:  shagadelictv: ShagadelicTV
effectv:  streaktv: StreakTV effect
effectv:  vertigotv: VertigoTV effect
effectv:  warptv: WarpTV effect
encoding:  encodebin: Encoder Bin
encoding:  encodebin2: Encoder Bin
equalizer:  equalizer-10bands: 10 Band Equalizer
equalizer:  equalizer-3bands: 3 Band Equalizer
equalizer:  equalizer-nbands: N Band Equalizer
faac:  faac: AAC audio encoder
faad:  faad: AAC audio decoder
faceoverlay:  faceoverlay: faceoverlay
fbdevsink:  fbdevsink: fbdev video sink
fdkaac:  fdkaacdec: FDK AAC audio decoder
fdkaac:  fdkaacenc: FDK AAC audio encoder
festival:  festival: Festival Text-to-Speech synthesizer
fieldanalysis:  fieldanalysis: Video field analysis
flac:  flacdec: FLAC audio decoder
flac:  flacenc: FLAC audio encoder
flac:  flactag: FLAC tagger
fluidsynthmidi:  fluiddec: Fluidsynth
flv:  flvdemux: FLV Demuxer
flv:  flvmux: FLV muxer
flxdec:  flxdec: FLX video decoder
freeverb:  freeverb: Reverberation/room effect
gaudieffects:  burn: Burn
gaudieffects:  chromium: Chromium
gaudieffects:  dilate: Dilate
gaudieffects:  dodge: Dodge
gaudieffects:  exclusion: Exclusion
gaudieffects:  gaussianblur: GstGaussianBlur
gaudieffects:  solarize: Solarize
gdkpixbuf:  gdkpixbufdec: GdkPixbuf image decoder
gdkpixbuf:  gdkpixbufoverlay: GdkPixbuf Overlay
gdkpixbuf:  gdkpixbufsink: GdkPixbuf sink
gdp:  gdpdepay: GDP Depayloader
gdp:  gdppay: GDP Payloader
geometrictransform:  bulge: bulge
geometrictransform:  circle: circle
geometrictransform:  diffuse: diffuse
geometrictransform:  fisheye: fisheye
geometrictransform:  kaleidoscope: kaleidoscope
geometrictransform:  marble: marble
geometrictransform:  mirror: mirror
geometrictransform:  perspective: perspective
geometrictransform:  pinch: pinch
geometrictransform:  rotate: rotate
geometrictransform:  sphere: sphere
geometrictransform:  square: square
geometrictransform:  stretch: stretch
geometrictransform:  tunnel: tunnel
geometrictransform:  twirl: twirl
geometrictransform:  waterripple: waterripple
gio:  giosink: GIO sink
gio:  giosrc: GIO source
gio:  giostreamsink: GIO stream sink
gio:  giostreamsrc: GIO stream source
gme:  gmedec: Gaming console music file decoder
goom:  goom: GOOM: what a GOOM!
goom2k1:  goom2k1: GOOM: what a GOOM! 2k1 edition
gsm:  gsmdec: GSM audio decoder
gsm:  gsmenc: GSM audio encoder
hls:  hlsdemux: HLS Demuxer
hls:  hlssink: HTTP Live Streaming sink
hls:  hlssink2: HTTP Live Streaming sink
icydemux:  icydemux: ICY tag demuxer
id3demux:  id3demux: ID3 tag demuxer
id3tag:  id3mux: ID3 v1 and v2 Muxer
imagefreeze:  imagefreeze: Still frame stream generator
inter:  interaudiosink: Internal audio sink
inter:  interaudiosrc: Internal audio source
inter:  intersubsink: Internal subtitle sink
inter:  intersubsrc: Internal subtitle source
inter:  intervideosink: Internal video sink
inter:  intervideosrc: Internal video source
interlace:  interlace: Interlace filter
interleave:  deinterleave: Audio deinterleaver
interleave:  interleave: Audio interleaver
ipcpipeline:  ipcpipelinesink: Inter-process Pipeline Sink
ipcpipeline:  ipcpipelinesrc: Inter-process Pipeline Source
ipcpipeline:  ipcslavepipeline: Inter-process slave pipeline
isomp4:  3gppmux: 3GPP Muxer
isomp4:  ismlmux: ISML Muxer
isomp4:  mj2mux: MJ2 Muxer
isomp4:  mp4mux: MP4 Muxer
isomp4:  qtdemux: QuickTime demuxer
isomp4:  qtmoovrecover: QT Moov Recover
isomp4:  qtmux: QuickTime Muxer
isomp4:  rtpxqtdepay: RTP packet depayloader
ivfparse:  ivfparse: IVF parser
ivtc:  combdetect: Comb Detect
ivtc:  ivtc: Inverse Telecine
jack:  jackaudiosink: Audio Sink (Jack)
jack:  jackaudiosrc: Audio Source (Jack)
jp2kdecimator:  jp2kdecimator: JPEG2000 decimator
jpeg:  jpegdec: JPEG image decoder
jpeg:  jpegenc: JPEG image encoder
jpegformat:  jifmux: JPEG stream muxer
jpegformat:  jpegparse: JPEG stream parser
kate:  katedec: Kate stream text decoder
kate:  kateenc: Kate stream encoder
kate:  kateparse: Kate stream parser
kate:  katetag: Kate stream tagger
kms:  kmssink: KMS video sink
ladspa:  ladspa-ladspa-rubberband-so-rubberband-pitchshifter-mono: Rubber Band Mono Pitch Shifter
ladspa:  ladspa-ladspa-rubberband-so-rubberband-pitchshifter-stereo: Rubber Band Stereo Pitch Shifter
ladspa:  ladspa-ladspa-rubberband-so-rubberband-r3-pitchshifter-mono: Rubber Band R3 Mono Pitch Shifter
ladspa:  ladspa-ladspa-rubberband-so-rubberband-r3-pitchshifter-stereo: Rubber Band R3 Stereo Pitch Shifter
lame:  lamemp3enc: L.A.M.E. mp3 encoder
ldac:  ldacenc: Bluetooth LDAC audio encoder
legacyrawparse:  audioparse: Audio Parse
legacyrawparse:  videoparse: Video Parse
level:  level: Level
matroska:  matroskademux: Matroska demuxer
matroska:  matroskamux: Matroska muxer
matroska:  matroskaparse: Matroska parser
matroska:  webmmux: WebM muxer
microdns:  microdnsdeviceprovider (GstDeviceProviderFactory)
midi:  midiparse: MidiParse
modplug:  modplug: ModPlug
monoscope:  monoscope: Monoscope
mpeg2dec:  mpeg2dec: mpeg1 and mpeg2 video decoder
mpeg2enc:  mpeg2enc: mpeg2enc video encoder
mpegpsdemux:  mpegpsdemux: MPEG Program Stream Demuxer
mpegpsmux:  mpegpsmux: MPEG Program Stream Muxer
mpegtsdemux:  tsdemux: MPEG transport stream demuxer
mpegtsdemux:  tsparse: MPEG transport stream parser
mpegtsmux:  atscmux: ATSC Transport Stream Muxer
mpegtsmux:  mpegtsmux: MPEG Transport Stream Muxer
mpg123:  mpg123audiodec: mpg123 mp3 decoder
mplex:  mplex: mplex video multiplexer
mulaw:  mulawdec: Mu Law audio decoder
mulaw:  mulawenc: Mu Law audio encoder
multifile:  imagesequencesrc: Image Sequence Source
multifile:  multifilesink: Multi-File Sink
multifile:  multifilesrc: Multi-File Source
multifile:  splitfilesrc: Split-File Source
multifile:  splitmuxsink: Split Muxing Bin
multifile:  splitmuxsrc: Split File Demuxing Bin
multipart:  multipartdemux: Multipart demuxer
multipart:  multipartmux: Multipart muxer
musepack:  musepackdec: Musepack decoder
mxf:  mxfdemux: MXF Demuxer
mxf:  mxfmux: MXF muxer
navigationtest:  navigationtest: Video navigation test
neonhttpsrc:  neonhttpsrc: HTTP client source
netsim:  netsim: Network Simulator
nice:  nicesink: ICE sink
nice:  nicesrc: ICE source
ogg:  oggaviparse: Ogg AVI parser
ogg:  oggdemux: Ogg demuxer
ogg:  oggmux: Ogg muxer
ogg:  oggparse: Ogg parser
ogg:  ogmaudioparse: OGM audio stream parser
ogg:  ogmtextparse: OGM text stream parser
ogg:  ogmvideoparse: OGM video stream parser
openal:  openalsink: OpenAL Audio Sink
openal:  openalsrc: OpenAL Audio Source
openaptx:  openaptxdec: Bluetooth aptX/aptX-HD audio decoder using libopenaptx
openaptx:  openaptxenc: Bluetooth aptX/aptX-HD audio encoder using libopenaptx
openexr:  openexrdec: OpenEXR decoder
opengl:  glalpha: OpenGL Alpha Filter
opengl:  glcolorbalance: Video balance
opengl:  glcolorconvert: OpenGL color converter
opengl:  glcolorscale: OpenGL color scale
opengl:  gldeinterlace: OpenGL deinterlacing filter
opengl:  gldifferencematte: Gstreamer OpenGL DifferenceMatte
opengl:  gldownload: OpenGL downloader
opengl:  gleffects: Gstreamer OpenGL Effects
opengl:  gleffects_blur: Blur with 9x9 separable convolution Effect
opengl:  gleffects_bulge: Bulge Effect
opengl:  gleffects_fisheye: FishEye Effect
opengl:  gleffects_glow: Glow Lighting Effect
opengl:  gleffects_heat: Heat Signature Effect
opengl:  gleffects_identity: Do nothing Effect
opengl:  gleffects_laplacian: Laplacian Convolution Demo Effect
opengl:  gleffects_lumaxpro: Luma Cross Processing Effect
opengl:  gleffects_mirror: Mirror Effect
opengl:  gleffects_sepia: Sepia Toning Effect
opengl:  gleffects_sin: All Grey but Red Effect
opengl:  gleffects_sobel: Sobel edge detection Effect
opengl:  gleffects_square: Square Effect
opengl:  gleffects_squeeze: Squeeze Effect
opengl:  gleffects_stretch: Stretch Effect
opengl:  gleffects_tunnel: Light Tunnel Effect
opengl:  gleffects_twirl: Twirl Effect
opengl:  gleffects_xpro: Cross Processing Effect
opengl:  gleffects_xray: Glowing negative effect
opengl:  glfilterapp: OpenGL application filter
opengl:  glfilterbin: GL Filter Bin
opengl:  glfiltercube: OpenGL cube filter
opengl:  glfilterglass: OpenGL glass filter
opengl:  glimagesink: GL Sink Bin
opengl:  glimagesinkelement: OpenGL video sink
opengl:  glmixerbin: OpenGL video_mixer empty bin
opengl:  glmosaic: OpenGL mosaic
opengl:  gloverlay: Gstreamer OpenGL Overlay
opengl:  gloverlaycompositor: OpenGL overlaying filter
opengl:  glshader: OpenGL fragment shader filter
opengl:  glsinkbin: GL Sink Bin
opengl:  glsrcbin: GL Src Bin
opengl:  glstereomix: OpenGL stereo video combiner
opengl:  glstereosplit: GLStereoSplit
opengl:  gltestsrc: Video test source
opengl:  gltransformation: OpenGL transformation filter
opengl:  glupload: OpenGL uploader
opengl:  glvideoflip: OpenGL video flip filter
opengl:  glvideomixer: OpenGL video_mixer bin
opengl:  glvideomixerelement: OpenGL video_mixer
opengl:  glviewconvert: OpenGL Multiview/3D conversion filter
openjpeg:  openjpegdec: OpenJPEG JPEG2000 decoder
openjpeg:  openjpegenc: OpenJPEG JPEG2000 encoder
openmpt:  openmptdec: OpenMPT-based module music decoder
opus:  opusdec: Opus audio decoder
opus:  opusenc: Opus audio encoder
opusparse:  opusparse: Opus audio parser
oss4:  oss4sink: OSS v4 Audio Sink
oss4:  oss4src: OSS v4 Audio Source
ossaudio:  osssink: Audio Sink (OSS)
ossaudio:  osssrc: Audio Source (OSS)
overlaycomposition:  overlaycomposition: Overlay Composition
pango:  clockoverlay: Clock overlay
pango:  textoverlay: Text overlay
pango:  textrender: Text renderer
pango:  timeoverlay: Time overlay
pbtypes:  GstVideoMultiviewFlagsSet (GstDynamicTypeFactory)
pcapparse:  irtspparse: IRTSPParse
pcapparse:  pcapparse: PCapParse
playback:  decodebin: Decoder Bin
playback:  decodebin3: Decoder Bin 3
playback:  parsebin: Parse Bin
playback:  playbin: Player Bin 2
playback:  playbin3: Player Bin 3
playback:  playsink: Player Sink
playback:  streamsynchronizer: Stream Synchronizer
playback:  subtitleoverlay: Subtitle Overlay
playback:  uridecodebin: URI Decoder
playback:  uridecodebin3: URI Decoder
playback:  urisourcebin: URI reader
png:  pngdec: PNG image decoder
png:  pngenc: PNG image encoder
pnm:  pnmdec: PNM image decoder
pnm:  pnmenc: PNM image encoder
proxy:  proxysink: Proxy Sink
proxy:  proxysrc: Proxy source
pulseaudio:  pulsedeviceprovider (GstDeviceProviderFactory)
pulseaudio:  pulsesink: PulseAudio Audio Sink
pulseaudio:  pulsesrc: PulseAudio Audio Source
qroverlay:  debugqroverlay: qroverlay
qroverlay:  qroverlay: qroverlay
rawparse:  rawaudioparse: rawaudioparse
rawparse:  rawvideoparse: rawvideoparse
rawparse:  unalignedaudioparse: unalignedaudioparse
rawparse:  unalignedvideoparse: unalignedvideoparse
realmedia:  pnmsrc: PNM packet receiver
realmedia:  rademux: RealAudio Demuxer
realmedia:  rdtdepay: RDT packet parser
realmedia:  rdtmanager: RTP Decoder
realmedia:  rmdemux: RealMedia Demuxer
realmedia:  rtspreal: RealMedia RTSP Extension
removesilence:  removesilence: RemoveSilence
replaygain:  rganalysis: ReplayGain analysis
replaygain:  rglimiter: ReplayGain limiter
replaygain:  rgvolume: ReplayGain volume
resindvd:  rsndvdbin: rsndvdbin
rfbsrc:  rfbsrc: Rfb source
rist:  ristrtpdeext: RIST RTP Extension remover
rist:  ristrtpext: RIST RTP Extension adder
rist:  ristrtxreceive: RIST Retransmission receiver
rist:  ristrtxsend: RIST Retransmission Sender
rist:  ristsink: RIST Sink
rist:  ristsrc: RIST Source
rist:  roundrobin: Round Robin
rsvg:  rsvgdec: SVG image decoder
rsvg:  rsvgoverlay: RSVG overlay
rtmp:  rtmpsink: RTMP output sink
rtmp:  rtmpsrc: RTMP Source
rtmp2:  rtmp2sink: RTMP sink element
rtmp2:  rtmp2src: RTMP source element
rtp:  asteriskh263: RTP Asterisk H263 depayloader
rtp:  rtpL16depay: RTP audio depayloader
rtp:  rtpL16pay: RTP audio payloader
rtp:  rtpL24depay: RTP audio depayloader
rtp:  rtpL24pay: RTP audio payloader
rtp:  rtpL8depay: RTP audio depayloader
rtp:  rtpL8pay: RTP audio payloader
rtp:  rtpac3depay: RTP AC3 depayloader
rtp:  rtpac3pay: RTP AC3 audio payloader
rtp:  rtpamrdepay: RTP AMR depayloader
rtp:  rtpamrpay: RTP AMR payloader
rtp:  rtpbvdepay: RTP BroadcomVoice depayloader
rtp:  rtpbvpay: RTP BV Payloader
rtp:  rtpceltdepay: RTP CELT depayloader
rtp:  rtpceltpay: RTP CELT payloader
rtp:  rtpdvdepay: RTP DV Depayloader
rtp:  rtpdvpay: RTP DV Payloader
rtp:  rtpg722depay: RTP audio depayloader
rtp:  rtpg722pay: RTP audio payloader
rtp:  rtpg723depay: RTP G.723 depayloader
rtp:  rtpg723pay: RTP G.723 payloader
rtp:  rtpg726depay: RTP G.726 depayloader
rtp:  rtpg726pay: RTP G.726 payloader
rtp:  rtpg729depay: RTP G.729 depayloader
rtp:  rtpg729pay: RTP G.729 payloader
rtp:  rtpgsmdepay: RTP GSM depayloader
rtp:  rtpgsmpay: RTP GSM payloader
rtp:  rtpgstdepay: GStreamer depayloader
rtp:  rtpgstpay: RTP GStreamer payloader
rtp:  rtph261depay: RTP H261 depayloader
rtp:  rtph261pay: RTP H261 packet payloader
rtp:  rtph263depay: RTP H263 depayloader
rtp:  rtph263pay: RTP H263 packet payloader
rtp:  rtph263pdepay: RTP H263 depayloader
rtp:  rtph263ppay: RTP H263 payloader
rtp:  rtph264depay: RTP H264 depayloader
rtp:  rtph264pay: RTP H264 payloader
rtp:  rtph265depay: RTP H265 depayloader
rtp:  rtph265pay: RTP H265 payloader
rtp:  rtphdrextcolorspace: Color Space
rtp:  rtpilbcdepay: RTP iLBC depayloader
rtp:  rtpilbcpay: RTP iLBC Payloader
rtp:  rtpisacdepay: RTP iSAC depayloader
rtp:  rtpisacpay: RTP iSAC payloader
rtp:  rtpj2kdepay: RTP JPEG 2000 depayloader
rtp:  rtpj2kpay: RTP JPEG 2000 payloader
rtp:  rtpjpegdepay: RTP JPEG depayloader
rtp:  rtpjpegpay: RTP JPEG payloader
rtp:  rtpklvdepay: RTP KLV Depayloader
rtp:  rtpklvpay: RTP KLV Payloader
rtp:  rtpldacpay: RTP packet payloader
rtp:  rtpmp1sdepay: RTP MPEG1 System Stream depayloader
rtp:  rtpmp2tdepay: RTP MPEG Transport Stream depayloader
rtp:  rtpmp2tpay: RTP MPEG2 Transport Stream payloader
rtp:  rtpmp4adepay: RTP MPEG4 audio depayloader
rtp:  rtpmp4apay: RTP MPEG4 audio payloader
rtp:  rtpmp4gdepay: RTP MPEG4 ES depayloader
rtp:  rtpmp4gpay: RTP MPEG4 ES payloader
rtp:  rtpmp4vdepay: RTP MPEG4 video depayloader
rtp:  rtpmp4vpay: RTP MPEG4 Video payloader
rtp:  rtpmpadepay: RTP MPEG audio depayloader
rtp:  rtpmpapay: RTP MPEG audio payloader
rtp:  rtpmparobustdepay: RTP MPEG audio depayloader
rtp:  rtpmpvdepay: RTP MPEG video depayloader
rtp:  rtpmpvpay: RTP MPEG2 ES video payloader
rtp:  rtpopusdepay: RTP Opus packet depayloader
rtp:  rtpopuspay: RTP Opus payloader
rtp:  rtppcmadepay: RTP PCMA depayloader
rtp:  rtppcmapay: RTP PCMA payloader
rtp:  rtppcmudepay: RTP PCMU depayloader
rtp:  rtppcmupay: RTP PCMU payloader
rtp:  rtpqcelpdepay: RTP QCELP depayloader
rtp:  rtpqdm2depay: RTP QDM2 depayloader
rtp:  rtpreddec: Redundant Audio Data (RED) Decoder
rtp:  rtpredenc: Redundant Audio Data (RED) Encoder
rtp:  rtpsbcdepay: RTP SBC audio depayloader
rtp:  rtpsbcpay: RTP packet payloader
rtp:  rtpsirendepay: RTP Siren packet depayloader
rtp:  rtpsirenpay: RTP Payloader for Siren Audio
rtp:  rtpspeexdepay: RTP Speex depayloader
rtp:  rtpspeexpay: RTP Speex payloader
rtp:  rtpstorage: RTP storage
rtp:  rtpstreamdepay: RTP Stream Depayloading
rtp:  rtpstreampay: RTP Stream Payloading
rtp:  rtpsv3vdepay: RTP SVQ3 depayloader
rtp:  rtptheoradepay: RTP Theora depayloader
rtp:  rtptheorapay: RTP Theora payloader
rtp:  rtpulpfecdec: RTP FEC Decoder
rtp:  rtpulpfecenc: RTP FEC Encoder
rtp:  rtpvorbisdepay: RTP Vorbis depayloader
rtp:  rtpvorbispay: RTP Vorbis payloader
rtp:  rtpvp8depay: RTP VP8 depayloader
rtp:  rtpvp8pay: RTP VP8 payloader
rtp:  rtpvp9depay: RTP VP9 depayloader
rtp:  rtpvp9pay: RTP VP9 payloader
rtp:  rtpvrawdepay: RTP Raw Video depayloader
rtp:  rtpvrawpay: RTP Raw Video payloader
rtpmanager:  rtpbin: RTP Bin
rtpmanager:  rtpdtmfmux: RTP muxer
rtpmanager:  rtpfunnel: RTP funnel
rtpmanager:  rtphdrextclientaudiolevel: Client-to-Mixer Audio Level Indication (RFC6464) RTP Header Extension
rtpmanager:  rtphdrexttwcc: Transport Wide Congestion Control
rtpmanager:  rtpjitterbuffer: RTP packet jitter-buffer
rtpmanager:  rtpmux: RTP muxer
rtpmanager:  rtpptdemux: RTP Demux
rtpmanager:  rtprtxqueue: RTP Retransmission Queue
rtpmanager:  rtprtxreceive: RTP Retransmission receiver
rtpmanager:  rtprtxsend: RTP Retransmission Sender
rtpmanager:  rtpsession: RTP Session
rtpmanager:  rtpssrcdemux: RTP SSRC Demux
rtpmanager:  rtpst2022-1-fecdec: SMPTE 2022-1 FEC decoder
rtpmanager:  rtpst2022-1-fecenc: SMPTE 2022-1 FEC encoder
rtpmanagerbad:  rtpsink: RTP Sink element
rtpmanagerbad:  rtpsrc: RTP Source element
rtponvif:  rtponvifparse: ONVIF NTP timestamps RTP extension
rtponvif:  rtponviftimestamp: ONVIF NTP timestamps RTP extension
rtsp:  rtpdec: RTP Decoder
rtsp:  rtspsrc: RTSP packet receiver
sbc:  sbcdec: Bluetooth SBC audio decoder
sbc:  sbcenc: Bluetooth SBC audio encoder
sctp:  sctpdec: SCTP Decoder
sctp:  sctpenc: SCTP Encoder
sdpelem:  sdpdemux: SDP session setup
sdpelem:  sdpsrc: SDP Source
segmentclip:  audiosegmentclip: Audio buffer segment clipper
segmentclip:  videosegmentclip: Video buffer segment clipper
shapewipe:  shapewipe: Shape Wipe transition filter
shm:  shmsink: Shared Memory Sink
shm:  shmsrc: Shared Memory Source
shout2:  shout2send: Icecast network sink
sid:  siddec: Sid decoder
siren:  sirendec: Siren Decoder element
siren:  sirenenc: Siren Encoder element
smooth:  smooth: Smooth effect
smoothstreaming:  mssdemux: Smooth Streaming demuxer
smpte:  smpte: SMPTE transitions
smpte:  smptealpha: SMPTE transitions
sndfile:  sfdec: Sndfile decoder
soundtouch:  bpmdetect: BPM Detector
soundtouch:  pitch: Pitch controller
soup:  souphttpclientsink: HTTP client sink
soup:  souphttpsrc: HTTP client source
spandsp:  dtmfdetect: DTMF detector element
spandsp:  spanplc: SpanDSP PLC
spandsp:  tonegeneratesrc: Telephony Tone  Generator source
spectrum:  spectrum: Spectrum analyzer
speed:  speed: Speed
speex:  speexdec: Speex audio decoder
speex:  speexenc: Speex audio encoder
srt:  srtclientsink: SRT sink
srt:  srtclientsrc: SRT source
srt:  srtserversink: SRT sink
srt:  srtserversrc: SRT source
srt:  srtsink: SRT sink
srt:  srtsrc: SRT source
srtp:  srtpdec: SRTP decoder
srtp:  srtpenc: SRTP encoder
staticelements:  bin: Generic bin
staticelements:  pipeline: Pipeline object
subenc:  srtenc: Srt encoder
subenc:  webvttenc: WebVTT encoder
subparse:  ssaparse: SSA Subtitle Parser
subparse:  subparse: Subtitle parser
subparse: subparse_typefind: srt, sub, mpsub, mdvd, smi, txt, dks, vtt
svthevcenc:  svthevcenc: svthevcenc
switchbin:  switchbin: switchbin
taglib:  apev2mux: TagLib-based APEv2 Muxer
taglib:  id3v2mux: TagLib-based ID3v2 Muxer
tcp:  multifdsink: Multi filedescriptor sink
tcp:  multisocketsink: Multi socket sink
tcp:  socketsrc: socket source
tcp:  tcpclientsink: TCP client sink
tcp:  tcpclientsrc: TCP client source
tcp:  tcpserversink: TCP server sink
tcp:  tcpserversrc: TCP server source
teletext:  teletextdec: Teletext decoder
theora:  theoradec: Theora video decoder
theora:  theoraenc: Theora video encoder
theora:  theoraparse: Theora video parser
timecode:  avwait: Timecode Wait
timecode:  timecodestamper: Timecode stamper
transcode:  transcodebin: Transcode Bin
transcode:  uritranscodebin: URITranscode Bin
ttmlsubs:  ttmlparse: TTML subtitle parser
ttmlsubs:  ttmlrender: TTML subtitle renderer
twolame:  twolamemp2enc: TwoLAME mp2 encoder
typefindfunctions: application/dash+xml: mpd, MPD
typefindfunctions: application/itc: itc
typefindfunctions: application/msword: doc
typefindfunctions: application/mxf: mxf
typefindfunctions: application/octet-stream: no extensions
typefindfunctions: application/ogg: ogg, oga, ogv, ogm, ogx, spx, anx, axa, axv
typefindfunctions: application/pdf: pdf
typefindfunctions: application/postscript: ps
typefindfunctions: application/sdp: sdp
typefindfunctions: application/smil: smil
typefindfunctions: application/ttml+xml: ttml+xml
typefindfunctions: application/vnd.apple-fcp+xml: fcpxml
typefindfunctions: application/vnd.apple-xmeml+xml: xmeml
typefindfunctions: application/vnd.ms-sstr+xml: no extensions
typefindfunctions: application/vnd.pixar.opentimelineio+json: otio
typefindfunctions: application/vnd.rn-realmedia: ra, ram, rm, rmvb
typefindfunctions: application/x-3gp: 3gp
typefindfunctions: application/x-ape: ape
typefindfunctions: application/x-apetag: mp3, ape, mpc, wv
typefindfunctions: application/x-ar: a
typefindfunctions: application/x-bzip: bz2
typefindfunctions: application/x-compress: Z
typefindfunctions: application/x-executable: no extensions
typefindfunctions: application/x-gzip: gz
typefindfunctions: application/x-hls: m3u8
typefindfunctions: application/x-id3v1: mp3, mp2, mp1, mpga, ogg, flac, tta
typefindfunctions: application/x-id3v2: mp3, mp2, mp1, mpga, ogg, flac, tta
typefindfunctions: application/x-mcc: mcc
typefindfunctions: application/x-mmsh: no extensions
typefindfunctions: application/x-ms-dos-executable: dll, exe, ocx, sys, scr, msstyles, cpl
typefindfunctions: application/x-ogg-skeleton: no extensions
typefindfunctions: application/x-ogm-audio: no extensions
typefindfunctions: application/x-ogm-text: no extensions
typefindfunctions: application/x-ogm-video: no extensions
typefindfunctions: application/x-pn-realaudio: ra, ram, rm, rmvb
typefindfunctions: application/x-rar: rar
typefindfunctions: application/x-scc: scc
typefindfunctions: application/x-shockwave-flash: swf, swfl
typefindfunctions: application/x-ssa: ssa, ass
typefindfunctions: application/x-subtitle-vtt: vtt
typefindfunctions: application/x-tar: tar
typefindfunctions: application/x-yuv4mpeg: no extensions
typefindfunctions: application/xges: xges
typefindfunctions: application/xml: xml
typefindfunctions: application/zip: zip
typefindfunctions: audio/aac: aac, adts, adif, loas
typefindfunctions: audio/audible: aa, aax
typefindfunctions: audio/iLBC-sh: ilbc
typefindfunctions: audio/midi: mid, midi
typefindfunctions: audio/mobile-xmf: mxmf
typefindfunctions: audio/mpeg: mp3, mp2, mp1, mpga
typefindfunctions: audio/qcelp: qcp
typefindfunctions: audio/riff-midi: mid, midi
typefindfunctions: audio/x-ac3: ac3, eac3
typefindfunctions: audio/x-aiff: aiff, aif, aifc
typefindfunctions: audio/x-amr-nb-sh: amr
typefindfunctions: audio/x-amr-wb-sh: amr
typefindfunctions: audio/x-au: au, snd
typefindfunctions: audio/x-ay: ay
typefindfunctions: audio/x-caf: caf
typefindfunctions: audio/x-celt: no extensions
typefindfunctions: audio/x-dts: dts
typefindfunctions: audio/x-flac: flac
typefindfunctions: audio/x-gbs: gbs
typefindfunctions: audio/x-gsm: gsm
typefindfunctions: audio/x-gym: gym
typefindfunctions: audio/x-imelody: imy, ime, imelody
typefindfunctions: audio/x-ircam: sf
typefindfunctions: audio/x-kss: kss
typefindfunctions: audio/x-m4a: m4a
typefindfunctions: audio/x-mod: 669, amf, ams, dbm, digi, dmf, dsm, gdm, far, imf, it, j2b, mdl, med, mod, mt2, mtm, okt, psm, ptm, sam, s3m, stm, stx, ult, umx, xm
typefindfunctions: audio/x-musepack: mpc, mpp, mp+
typefindfunctions: audio/x-nist: nist
typefindfunctions: audio/x-nsf: nsf
typefindfunctions: audio/x-paris: paf
typefindfunctions: audio/x-rf64: rf64
typefindfunctions: audio/x-sap: sap
typefindfunctions: audio/x-sbc: sbc
typefindfunctions: audio/x-sds: sds
typefindfunctions: audio/x-shorten: shn
typefindfunctions: audio/x-sid: sid
typefindfunctions: audio/x-spc: spc
typefindfunctions: audio/x-speex: no extensions
typefindfunctions: audio/x-svx: iff, svx
typefindfunctions: audio/x-tap-dmp: dmp
typefindfunctions: audio/x-tap-tap: tap
typefindfunctions: audio/x-ttafile: tta
typefindfunctions: audio/x-vgm: vgm
typefindfunctions: audio/x-voc: voc
typefindfunctions: audio/x-vorbis: no extensions
typefindfunctions: audio/x-w64: w64
typefindfunctions: audio/x-wav: wav
typefindfunctions: audio/x-wavpack: wv, wvp
typefindfunctions: audio/x-wavpack-correction: wvc
typefindfunctions: audio/x-xi: xi
typefindfunctions: image/bmp: bmp
typefindfunctions: image/gif: gif
typefindfunctions: image/jp2: jp2
typefindfunctions: image/jpeg: jpg, jpe, jpeg
typefindfunctions: image/png: png
typefindfunctions: image/svg+xml: svg
typefindfunctions: image/tiff: tif, tiff
typefindfunctions: image/vnd.adobe.photoshop: psd
typefindfunctions: image/vnd.wap.wbmp: no extensions
typefindfunctions: image/webp: webp
typefindfunctions: image/x-degas: no extensions
typefindfunctions: image/x-exr: exr
typefindfunctions: image/x-icon: no extensions
typefindfunctions: image/x-jng: jng
typefindfunctions: image/x-jpc: jpc, j2k
typefindfunctions: image/x-portable-pixmap: pnm, ppm, pgm, pbm
typefindfunctions: image/x-quicktime: qif, qtif, qti
typefindfunctions: image/x-sun-raster: ras
typefindfunctions: image/x-xcf: xcf
typefindfunctions: image/x-xpixmap: xpm
typefindfunctions: multipart/x-mixed-replace: no extensions
typefindfunctions: subtitle/x-kate: no extensions
typefindfunctions: text/html: htm, html
typefindfunctions: text/plain: txt
typefindfunctions: text/uri-list: ram
typefindfunctions: text/utf-16: txt
typefindfunctions: text/utf-32: txt
typefindfunctions: text/x-cmml: no extensions
typefindfunctions: video/mj2: mj2
typefindfunctions: video/mpeg-elementary: mpv, mpeg, mpg
typefindfunctions: video/mpeg-sys: mpe, mpeg, mpg
typefindfunctions: video/mpeg4: m4v
typefindfunctions: video/mpegts: ts, mts
typefindfunctions: video/quicktime: mov, mp4
typefindfunctions: video/vivo: viv
typefindfunctions: video/x-cdxa: dat
typefindfunctions: video/x-dirac: no extensions
typefindfunctions: video/x-dv: dv, dif
typefindfunctions: video/x-fli: flc, fli
typefindfunctions: video/x-flv: flv
typefindfunctions: video/x-h263: h263, 263
typefindfunctions: video/x-h264: h264, x264, 264
typefindfunctions: video/x-h265: h265, x265, 265
typefindfunctions: video/x-ivf: ivf
typefindfunctions: video/x-matroska: mkv, mka, mk3d, webm
typefindfunctions: video/x-mng: mng
typefindfunctions: video/x-ms-asf: asf, wm, wma, wmv
typefindfunctions: video/x-msvideo: avi
typefindfunctions: video/x-mve: mve
typefindfunctions: video/x-nuv: nuv
typefindfunctions: video/x-pva: pva
typefindfunctions: video/x-theora: no extensions
typefindfunctions: video/x-vcd: dat
udp:  dynudpsink: UDP packet sender
udp:  multiudpsink: UDP packet sender
udp:  udpsink: UDP packet sender
udp:  udpsrc: UDP packet receiver
uvch264:  uvch264deviceprovider (GstDeviceProviderFactory)
uvch264:  uvch264mjpgdemux: UVC H264 MJPG Demuxer
uvch264:  uvch264src: UVC H264 Source
vaapi:  vaapidecodebin: VA-API Decode Bin
vaapi:  vaapih264dec: VA-API H264 decoder
vaapi:  vaapih264enc: VA-API H264 encoder
vaapi:  vaapih265dec: VA-API H265 decoder
vaapi:  vaapih265enc: VA-API H265 encoder
vaapi:  vaapijpegdec: VA-API JPEG decoder
vaapi:  vaapijpegenc: VA-API JPEG encoder
vaapi:  vaapimpeg2dec: VA-API MPEG2 decoder
vaapi:  vaapimpeg2enc: VA-API MPEG-2 encoder
vaapi:  vaapioverlay: VA-API overlay
vaapi:  vaapipostproc: VA-API video postprocessing
vaapi:  vaapisink: VA-API sink
vaapi:  vaapivc1dec: VA-API VC1 decoder
vaapi:  vaapivp8dec: VA-API VP8 decoder
vaapi:  vaapivp8enc: VA-API VP8 encoder
vaapi:  vaapivp9dec: VA-API VP9 decoder
video4linux2:  v4l2deviceprovider (GstDeviceProviderFactory)
video4linux2:  v4l2radio: Radio (video4linux2) Tuner
video4linux2:  v4l2sink: Video (video4linux2) Sink
video4linux2:  v4l2src: Video (video4linux2) Source
videobox:  videobox: Video box filter
videoconvert:  videoconvert: Colorspace converter
videocrop:  aspectratiocrop: aspectratiocrop
videocrop:  videocrop: Crop
videofilter:  gamma: Video gamma correction
videofilter:  videobalance: Video balance
videofilter:  videoflip: Video flipper
videofilter:  videomedian: Median effect
videofiltersbad:  scenechange: Scene change detector
videofiltersbad:  videodiff: Video Diff
videofiltersbad:  zebrastripe: Zebra stripe overlay
videoframe_audiolevel:  videoframe-audiolevel: Video-frame audio level
videomixer:  videomixer: Video mixer 2
videoparsersbad:  av1parse: AV1 parser
videoparsersbad:  diracparse: Dirac parser
videoparsersbad:  h263parse: H.263 parser
videoparsersbad:  h264parse: H.264 parser
videoparsersbad:  h265parse: H.265 parser
videoparsersbad:  jpeg2000parse: JPEG 2000 parser
videoparsersbad:  mpeg4videoparse: MPEG 4 video elementary stream parser
videoparsersbad:  mpegvideoparse: MPEG video elementary stream parser
videoparsersbad:  pngparse: PNG parser
videoparsersbad:  vc1parse: VC1 parser
videoparsersbad:  vp9parse: VP9 parser
videorate:  videorate: Video rate adjuster
videoscale:  videoscale: Video scaler
videosignal:  simplevideomark: Video marker
videosignal:  simplevideomarkdetect: Video detecter
videosignal:  videoanalyse: Video analyser
videotestsrc:  videotestsrc: Video test source
vmnc:  vmncdec: VMnc video decoder
volume:  volume: Volume
vorbis:  vorbisdec: Vorbis audio decoder
vorbis:  vorbisenc: Vorbis audio encoder
vorbis:  vorbisparse: VorbisParse
vorbis:  vorbistag: VorbisTag
vpx:  vp8dec: On2 VP8 Decoder
vpx:  vp8enc: On2 VP8 Encoder
vpx:  vp9dec: On2 VP9 Decoder
vpx:  vp9enc: On2 VP9 Encoder
vulkan:  vulkancolorconvert: Vulkan Color Convert
vulkan:  vulkandeviceprovider (GstDeviceProviderFactory)
vulkan:  vulkandownload: Vulkan Downloader
vulkan:  vulkanimageidentity: Vulkan Image Identity
vulkan:  vulkansink: Vulkan video sink
vulkan:  vulkanupload: Vulkan Uploader
vulkan:  vulkanviewconvert: Vulkan View Convert
wavenc:  wavenc: WAV audio muxer
wavpack:  wavpackdec: Wavpack audio decoder
wavpack:  wavpackenc: Wavpack audio encoder
wavparse:  wavparse: WAV audio demuxer
waylandsink:  waylandsink: wayland video sink
webp:  webpdec: WebP image decoder
webp:  webpenc: WEBP image encoder
webrtc:  webrtcbin: WebRTC Bin
webrtcdsp:  webrtcdsp: Voice Processor (AGC, AEC, filters, etc.)
webrtcdsp:  webrtcechoprobe: Acoustic Echo Canceller probe
wildmidi:  wildmididec: WildMidi-based MIDI music decoder
x264:  x264enc: x264 H.264 Encoder
x265:  x265enc: x265enc
ximagesink:  ximagesink: Video sink
ximagesrc:  ximagesrc: Ximage video source
xingmux:  xingmux: MP3 Xing muxer
xvimagesink:  xvimagesink: Video sink
y4mdec:  y4mdec: YUV4MPEG demuxer/decoder
y4menc:  y4menc: YUV4MPEG video encoder
zbar:  zbar: Barcode detector
zxing:  zxing: Barcode detector

Total count: 259 plugins, 924 features


I also turned on verbose logs for libvirtd and debug for spice on the hypervisor host with SPICE_DEBUG_LEVEL=5 for qemu, but I'm not /quite/ sure this is exactly what's needed as far as spice-server logs. If this is not useful, could you please elaborate which logs are necessary from the server?

Logs from qemu/libvirt/spice:
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627399, "microseconds": 848949}, "event": "SPICE_CONNECTED", "data": {"server": {"port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "59372", "family": "ipv4", "host": "127.0.0.1"}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220351a80 classname=virDomainQemuMonitorEvent
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220351a80
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220351a80
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f22200810d0 classname=virDomainEventGraphics
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f22200810d0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f22200810d0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627399, "microseconds": 886840}, "event": "SPICE_INITIALIZED", "data": {"server": {"auth": "none", "port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "59372", "family": "ipv4", "channel-type": 1, "connection-id": 1477171087, "host": "127.0.0.1", "channel-id": 0, "tls": false}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220351b10 classname=virDomainQemuMonitorEvent
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220351b10
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220351b10
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220081170 classname=virDomainEventGraphics
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220081170
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220081170
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627400, "microseconds": 113113}, "event": "SPICE_CONNECTED", "data": {"server": {"port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "59376", "family": "ipv4", "host": "127.0.0.1"}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220351ba0 classname=virDomainQemuMonitorEvent
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220351ba0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220351ba0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220081210 classname=virDomainEventGraphics
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220081210
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220081210
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627400, "microseconds": 122746}, "event": "SPICE_CONNECTED", "data": {"server": {"port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "59382", "family": "ipv4", "host": "127.0.0.1"}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220351c30 classname=virDomainQemuMonitorEvent
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220351c30
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220351c30
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f22200812b0 classname=virDomainEventGraphics
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f22200812b0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f22200812b0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220351cc0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220081350
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libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627400, "microseconds": 136821}, "event": "SPICE_INITIALIZED", "data": {"server": {"auth": "none", "port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "59376", "family": "ipv4", "channel-type": 9, "connection-id": 1477171087, "host": "127.0.0.1", "channel-id": 1, "tls": false}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220351d50
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libvirtd[3564672]: OBJECT_NEW: obj=0x7f22200813f0 classname=virDomainEventGraphics
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f22200813f0
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libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627400, "microseconds": 136869}, "event": "SPICE_CONNECTED", "data": {"server": {"port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "59410", "family": "ipv4", "host": "127.0.0.1"}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_NEW: obj=0x7f22200813f0 classname=virDomainEventGraphics
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f22200813f0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627400, "microseconds": 141876}, "event": "SPICE_CONNECTED", "data": {"server": {"port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "59424", "family": "ipv4", "host": "127.0.0.1"}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220351cc0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220081350 classname=virDomainEventGraphics
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220081350
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627400, "microseconds": 182292}, "event": "SPICE_INITIALIZED", "data": {"server": {"auth": "none", "port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "59424", "family": "ipv4", "channel-type": 2, "connection-id": 1477171087, "host": "127.0.0.1", "channel-id": 0, "tls": false}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f22200812b0
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627400, "microseconds": 182712}, "event": "SPICE_INITIALIZED", "data": {"server": {"auth": "none", "port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "59382", "family": "ipv4", "channel-type": 9, "connection-id": 1477171087, "host": "127.0.0.1", "channel-id": 0, "tls": false}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220351ba0
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libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220081210 classname=virDomainEventGraphics
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220081210
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627400, "microseconds": 184859}, "event": "SPICE_INITIALIZED", "data": {"server": {"auth": "none", "port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "59410", "family": "ipv4", "channel-type": 5, "connection-id": 1477171087, "host": "127.0.0.1", "channel-id": 0, "tls": false}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220351b10
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220081170
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627400, "microseconds": 186378}, "event": "SPICE_INITIALIZED", "data": {"server": {"auth": "none", "port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "59394", "family": "ipv4", "channel-type": 6, "connection-id": 1477171087, "host": "127.0.0.1", "channel-id": 0, "tls": false}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220351a80
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
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libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627400, "microseconds": 582996}, "event": "SPICE_CONNECTED", "data": {"server": {"port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "59440", "family": "ipv4", "host": "127.0.0.1"}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627400, "microseconds": 590260}, "event": "SPICE_CONNECTED", "data": {"server": {"port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "59448", "family": "ipv4", "host": "127.0.0.1"}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220016f20
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627400, "microseconds": 624844}, "event": "SPICE_INITIALIZED", "data": {"server": {"auth": "none", "port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "59440", "family": "ipv4", "channel-type": 3, "connection-id": 1477171087, "host": "127.0.0.1", "channel-id": 0, "tls": false}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627400, "microseconds": 627716}, "event": "SPICE_INITIALIZED", "data": {"server": {"auth": "none", "port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "59448", "family": "ipv4", "channel-type": 4, "connection-id": 1477171087, "host": "127.0.0.1", "channel-id": 0, "tls": false}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627541, "microseconds": 322781}, "event": "SPICE_DISCONNECTED", "data": {"server": {"port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "59448", "family": "ipv4", "host": "127.0.0.1"}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627541, "microseconds": 324358}, "event": "SPICE_DISCONNECTED", "data": {"server": {"port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "59424", "family": "ipv4", "host": "127.0.0.1"}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627541, "microseconds": 324961}, "event": "SPICE_DISCONNECTED", "data": {"server": {"port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "59410", "family": "ipv4", "host": "127.0.0.1"}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220081170 classname=virDomainEventGraphics
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220081170
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220081170
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627541, "microseconds": 325207}, "event": "SPICE_DISCONNECTED", "data": {"server": {"port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "59394", "family": "ipv4", "host": "127.0.0.1"}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220351c30
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220081210 classname=virDomainEventGraphics
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220081210
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220081210
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627541, "microseconds": 329645}, "event": "SPICE_DISCONNECTED", "data": {"server": {"port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "59372", "family": "ipv4", "host": "127.0.0.1"}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220351ba0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220351ba0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f22200812b0 classname=virDomainEventGraphics
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f22200812b0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f22200812b0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627555, "microseconds": 780529}, "event": "RTC_CHANGE", "data": {"offset": 0}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220351b10
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f226004ddc0 classname=virDomainEventRTCChange
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f226004ddc0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f226004ddc0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627657, "microseconds": 610411}, "event": "SPICE_CONNECTED", "data": {"server": {"port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "53656", "family": "ipv4", "host": "127.0.0.1"}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220351a80
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220081350 classname=virDomainEventGraphics
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220081350
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627657, "microseconds": 640892}, "event": "SPICE_INITIALIZED", "data": {"server": {"auth": "none", "port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "53656", "family": "ipv4", "channel-type": 1, "connection-id": 317097467, "host": "127.0.0.1", "channel-id": 0, "tls": false}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220108710
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f22200813f0 classname=virDomainEventGraphics
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f22200813f0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f22200813f0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627657, "microseconds": 864961}, "event": "SPICE_CONNECTED", "data": {"server": {"port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "53666", "family": "ipv4", "host": "127.0.0.1"}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f22200813f0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627657, "microseconds": 871171}, "event": "SPICE_CONNECTED", "data": {"server": {"port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "53682", "family": "ipv4", "host": "127.0.0.1"}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220081350
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627657, "microseconds": 877297}, "event": "SPICE_CONNECTED", "data": {"server": {"port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "53686", "family": "ipv4", "host": "127.0.0.1"}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f22200812b0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627657, "microseconds": 882004}, "event": "SPICE_CONNECTED", "data": {"server": {"port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "53700", "family": "ipv4", "host": "127.0.0.1"}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220081210
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627657, "microseconds": 886638}, "event": "SPICE_INITIALIZED", "data": {"server": {"auth": "none", "port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "53666", "family": "ipv4", "channel-type": 5, "connection-id": 317097467, "host": "127.0.0.1", "channel-id": 0, "tls": false}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
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libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220081170 classname=virDomainEventGraphics
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libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627657, "microseconds": 886702}, "event": "SPICE_CONNECTED", "data": {"server": {"port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "53716", "family": "ipv4", "host": "127.0.0.1"}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220351cc0 classname=virDomainQemuMonitorEvent
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220351cc0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220351cc0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f22200810d0 classname=virDomainEventGraphics
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f22200810d0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f22200810d0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627657, "microseconds": 897040}, "event": "SPICE_INITIALIZED", "data": {"server": {"auth": "none", "port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "53682", "family": "ipv4", "channel-type": 9, "connection-id": 317097467, "host": "127.0.0.1", "channel-id": 0, "tls": false}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220351d50 classname=virDomainQemuMonitorEvent
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220351d50
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220351d50
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220081030 classname=virDomainEventGraphics
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220081030
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220081030
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627657, "microseconds": 899906}, "event": "SPICE_INITIALIZED", "data": {"server": {"auth": "none", "port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "53686", "family": "ipv4", "channel-type": 9, "connection-id": 317097467, "host": "127.0.0.1", "channel-id": 1, "tls": false}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220351d50 classname=virDomainQemuMonitorEvent
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220351d50
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220351d50
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220016f20 classname=virDomainEventGraphics
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220016f20
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220016f20
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627657, "microseconds": 901680}, "event": "SPICE_INITIALIZED", "data": {"server": {"auth": "none", "port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "53700", "family": "ipv4", "channel-type": 2, "connection-id": 317097467, "host": "127.0.0.1", "channel-id": 0, "tls": false}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220351cc0 classname=virDomainQemuMonitorEvent
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220351cc0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220351cc0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220016e80 classname=virDomainEventGraphics
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220016e80
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220016e80
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627657, "microseconds": 950973}, "event": "SPICE_INITIALIZED", "data": {"server": {"auth": "none", "port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "53716", "family": "ipv4", "channel-type": 6, "connection-id": 317097467, "host": "127.0.0.1", "channel-id": 0, "tls": false}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220351c30 classname=virDomainQemuMonitorEvent
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220351c30
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220351c30
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f22200168e0 classname=virDomainEventGraphics
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f22200168e0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f22200168e0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627657, "microseconds": 977581}, "event": "SPICE_CONNECTED", "data": {"server": {"port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "53726", "family": "ipv4", "host": "127.0.0.1"}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220351ba0 classname=virDomainQemuMonitorEvent
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220351ba0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220351ba0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f22200168e0 classname=virDomainEventGraphics
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f22200168e0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f22200168e0
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627657, "microseconds": 984079}, "event": "SPICE_CONNECTED", "data": {"server": {"port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "53738", "family": "ipv4", "host": "127.0.0.1"}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220351b10 classname=virDomainQemuMonitorEvent
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220351b10
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220351b10
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220016e80 classname=virDomainEventGraphics
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220016e80
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220016e80
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627657, "microseconds": 994740}, "event": "SPICE_INITIALIZED", "data": {"server": {"auth": "none", "port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "53726", "family": "ipv4", "channel-type": 4, "connection-id": 317097467, "host": "127.0.0.1", "channel-id": 0, "tls": false}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220351a80 classname=virDomainQemuMonitorEvent
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220351a80
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220351a80
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220016f20 classname=virDomainEventGraphics
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220016f20
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220016f20
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: QEMU_MONITOR_RECV_EVENT: mon=0x7f2220068460 event={"timestamp": {"seconds": 1669627658, "microseconds": 2137}, "event": "SPICE_INITIALIZED", "data": {"server": {"auth": "none", "port": "5912", "family": "ipv4", "host": "127.0.0.1"}, "client": {"port": "53738", "family": "ipv4", "channel-type": 3, "connection-id": 317097467, "host": "127.0.0.1", "channel-id": 0, "tls": false}}}
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220108710 classname=virDomainQemuMonitorEvent
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220108710
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220108710
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_NEW: obj=0x7f2220081030 classname=virDomainEventGraphics
libvirtd[3564672]: OBJECT_DISPOSE: obj=0x7f2220081030
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220081030
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_REF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460
libvirtd[3564672]: OBJECT_UNREF: obj=0x7f2220068460


As for how quickly I shut down spicy, that's more than fair :D I played around with it for quite some time by then and I just wanted to reproduce switching to another encoding and quickly scrolling through a dense web page to trigger streaming. I ran it longer this time and started a video playback on a website, plus scrolled madly through a spreadsheet. Tried vp9, too, just for kicks. Also switched back to 'filter' mode for video streaming in the guest's config. Not much has changed, ostensibly.

libspice-server.so seems to have been linked with gstreamer on the host:
# ldd /usr/lib/x86_64-linux-gnu/libspice-server.so.1.14.1
        linux-vdso.so.1
        libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0
        libpixman-1.so.0 => /lib/x86_64-linux-gnu/libpixman-1.so.0
        libssl.so.3 => /lib/x86_64-linux-gnu/libssl.so.3
        libcrypto.so.3 => /lib/x86_64-linux-gnu/libcrypto.so.3
        libopus.so.0 => /lib/x86_64-linux-gnu/libopus.so.0
        libjpeg.so.8 => /lib/x86_64-linux-gnu/libjpeg.so.8
        libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1
        libgstreamer-1.0.so.0 => /lib/x86_64-linux-gnu/libgstreamer-1.0.so.0
        libgobject-2.0.so.0 => /lib/x86_64-linux-gnu/libgobject-2.0.so.0
        libgstapp-1.0.so.0 => /lib/x86_64-linux-gnu/libgstapp-1.0.so.0
        liborc-0.4.so.0 => /lib/x86_64-linux-gnu/liborc-0.4.so.0
        liblz4.so.1 => /lib/x86_64-linux-gnu/liblz4.so.1
        libsasl2.so.2 => /lib/x86_64-linux-gnu/libsasl2.so.2
        libstdc++.so.6 => /lib/x86_64-linux-gnu/libstdc++.so.6
        libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6
        libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3
        /lib64/ld-linux-x86-64.so.2
        libgmodule-2.0.so.0 => /lib/x86_64-linux-gnu/libgmodule-2.0.so.0
        libunwind.so.8 => /lib/x86_64-linux-gnu/libunwind.so.8
        libdw.so.1 => /lib/x86_64-linux-gnu/libdw.so.1
        libffi.so.8 => /lib/x86_64-linux-gnu/libffi.so.8
        libgstbase-1.0.so.0 => /lib/x86_64-linux-gnu/libgstbase-1.0.so.0
        libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1
        liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5
        libelf.so.1 => /lib/x86_64-linux-gnu/libelf.so.1
        libbz2.so.1.0 => /lib/x86_64-linux-gnu/libbz2.so.1.0


You mentioned x264 is hardcoded in gstreamer-encoder.c:887 - that would never use hw encoding, right? One would need to recompile spice-server and change that to e.g. 'vaapih264enc' to utilize the GPU? Even if this is correct, the client could still use the GPU to decode the h264 stream when it's ecountered, but just doesn't seem to. Maybe the server doesn't even encode anything in h264 (either using the GPU or not)?

I get a feeling - but please correct me if I'm wrong - that this video encoding (plus hw enc/dec) is not meant to be user-configured, it's more of an automatic thing that kicks in when the time's right, is that fair? I kind of miss the parameters and options to properly configure this both on server and client.


You mentioned trying spice-streaming-agent, so I wanted to give it a go, added the necessary channel, compiled, started it, and had gotten:
spice-streaming-agent[1727]: Failed to open the streaming device "/dev/virtio-ports/org.spice-space.stream.0": 13 - Permission denied
Indeed:
$ ls -la /dev/virtio-ports/
total 0
drwxr-xr-x  2 root root  100 2022-11-28 11:45:50 ./
drwxr-xr-x 21 root root 3960 2022-11-28 11:45:52 ../
lrwxrwxrwx  1 root root   11 2022-11-28 11:45:50 com.redhat.spice.0 -> ../vport2p2
lrwxrwxrwx  1 root root   11 2022-11-28 11:45:50 org.qemu.guest_agent.0 -> ../vport2p1
lrwxrwxrwx  1 root root   11 2022-11-28 11:45:50 org.spice-space.stream.0 -> ../vport2p3

$ ls -la /dev/vport2p*
crw------- 1 root root 236, 1 2022-11-28 11:45:50 /dev/vport2p1
crw------- 1 root root 236, 2 2022-11-28 11:45:50 /dev/vport2p2
crw------- 1 root root 236, 3 2022-11-28 11:45:50 /dev/vport2p3

For a quick workaround I did:
$ sudo chmod 666 /dev/vport2p3
... and started the agent:
$ ./build/src/spice-streaming-agent

Now I'm not sure what's supposed to happen, I started remote-viewer like in the video you linked, the performance didn't change, but tried with spicy too, seemingly no difference.
Btw, is the line "For now, spice-streaming-agent only provides software encoding to MJPEG." in its README still relevant? In this case I wouldn't expect anything else other than the same performance as without the agent.



Daniel




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