Как обрабатывать отсутствующие кодеки gstreamer

Я сталкиваюсь с проблемой отсутствия кодеков для популярных видеоконтейнеров, таких как mp4 и avi, как при использовании gstreamer в командной строке, так и при попытке запустить образец кода playbin (подробности для каждого сценария ниже).

Это могут быть отсутствующие пакеты или необходимая настройка. Как мне исправить свою среду, чтобы кодеки mp4 и avi работали в gstreamer?

1.С помощью playbin

При попытке запустить мое первое приложение gstreamer playbin было взято из официальной документации gstreamer. Однако кажется, что независимо от того, какую кодировку видео я выбираю для воспроизведения, декодеры отсутствуют.

Я установил ubuntu-restricted-extras, который был предложен в другом месте в качестве универсального решения для такого рода вопросов, но на самом деле понятия не имею, как установить или настроить отсутствующие декодеры. Возможно, ты сможешь сделать меня мудрее.

Вот код и трассировка ошибки после него:

import sys, os
import gi
gi.require_version('Gst', '1.0')
gi.require_version('Gtk', '3.0')
gi.require_version('GstVideo', '1.0')
from gi.repository import Gst, GObject, Gtk

# Needed for window.get_xid(), xvimagesink.set_window_handle(), respectively:
from gi.repository import GdkX11, GstVideo

class GTK_Main(object):

    def __init__(self):
        window = Gtk.Window(Gtk.WindowType.TOPLEVEL)
        window.set_title("Video-Player")
        window.set_default_size(500, 400)
        window.connect("destroy", Gtk.main_quit, "WM destroy")
        vbox = Gtk.VBox()
        window.add(vbox)
        hbox = Gtk.HBox()
        vbox.pack_start(hbox, False, False, 0)
        self.entry = Gtk.Entry()
        hbox.add(self.entry)
        self.button = Gtk.Button("Start")
        hbox.pack_start(self.button, False, False, 0)
        self.button.connect("clicked", self.start_stop)
        self.movie_window = Gtk.DrawingArea()
        vbox.add(self.movie_window)
        window.show_all()

        self.player = Gst.ElementFactory.make("playbin", "player")
        bus = self.player.get_bus()
        bus.add_signal_watch()
        bus.enable_sync_message_emission()
        bus.connect("message", self.on_message)
        bus.connect("sync-message::element", self.on_sync_message)

    def start_stop(self, w):
        if self.button.get_label() == "Start":
            filepath = self.entry.get_text().strip()
            if os.path.isfile(filepath):
                filepath = os.path.realpath(filepath)
                self.button.set_label("Stop")
                self.player.set_property("uri", "file://" + filepath)
                self.player.set_state(Gst.State.PLAYING)
            else:
                print(f"there is no file path {filepath}")
                self.player.set_state(Gst.State.NULL)
                self.button.set_label("Start")

    def on_message(self, bus, message):
        t = message.type
        if t == Gst.MessageType.EOS:
            self.player.set_state(Gst.State.NULL)
            self.button.set_label("Start")
        elif t == Gst.MessageType.ERROR:
            self.player.set_state(Gst.State.NULL)
            err, debug = message.parse_error()
            print("Error: %s" % err, debug)
            self.button.set_label("Start")

    def on_sync_message(self, bus, message):
        if message.get_structure().get_name() == 'prepare-window-handle':
            imagesink = message.src
            imagesink.set_property("force-aspect-ratio", True)
            imagesink.set_window_handle(self.movie_window.get_property('window').get_xid())


GObject.threads_init()
Gst.init(None)
GTK_Main()
Gtk.main()

Трассировка ошибки:

playbin-example-video.py:72: PyGIDeprecationWarning: Since version 3.11, calling threads_init is no longer needed. See: https://wiki.gnome.org/PyGObject/Threading
      GObject.threads_init()
    playbin-example-video.py:17: PyGTKDeprecationWarning: Using positional arguments with the GObject constructor has been deprecated. Please specify keyword(s) for "type" or use a class specific constructor. See: https://wiki.gnome.org/PyGObject/InitializerDeprecations
      window = Gtk.Window(Gtk.WindowType.TOPLEVEL)
    playbin-example-video.py:27: PyGTKDeprecationWarning: Using positional arguments with the GObject constructor has been deprecated. Please specify keyword(s) for "label" or use a class specific constructor. See: https://wiki.gnome.org/PyGObject/InitializerDeprecations
      self.button = Gtk.Button("Start")
    Error: gst-core-error-quark: Your GStreamer installation is missing a plug-in. (12) gsturidecodebin.c(988): no_more_pads_full (): /GstPlayBin:player/GstURIDecodeBin:uridecodebin0:
    no suitable plugins found:
    gstdecodebin2.c(4640): gst_decode_bin_expose (): /GstPlayBin:player/GstURIDecodeBin:uridecodebin0/GstDecodeBin:decodebin0:
    no suitable plugins found:
    Missing decoder: Audio Video Interleave (AVI) (video/x-msvideo)

Возможно, этот код устарел, мне пришлось преобразовать его в Python 3 после копирования из официальной документации.

Я просмотрел официальный документ по такой общей ситуации, но не увидел там ясного пути.

2. Использование проигрывателя командной строки

Та же проблема при попытке воспроизвести файлы avi или mp4 из команды gstreamer:

$ gst-play-1.0 media_file.mp4
$ gst-play-1.0 media_file.avi

В некоторых местах упоминается переменная среды это необходимо установить, но немного сложно понять, где были установлены плагины, чтобы указать их в этой переменной среды. Например. Кажется, у меня установлены подходящие пакеты плагинов («базовый», «хороший» и «плохой»), но каталоги, которые я могу найти с помощью whereis, похоже, не содержат ничего, кроме двух исполняемых файлов.

Запуск исполняемого файла оттуда:

$ /usr/lib/x86_64-linux-gnu/gstreamer1.0/gstreamer-1.0/gst-plugin-scanner

ничего не возвращает.

Вывод gst-inspect:

$ gst-inspect-1.0 
videoscale:  videoscale: Video scaler
ximagesink:  ximagesink: Video sink
audiotestsrc:  audiotestsrc: Audio test source
audiomixer:  audiointerleave: AudioInterleave
audiomixer:  liveadder: AudioMixer
audiomixer:  audiomixer: AudioMixer
audiorate:  audiorate: Audio rate adjuster
volume:  volume: Volume
videotestsrc:  videotestsrc: Video test source
opengl:  glfilterglass: OpenGL glass filter
opengl:  gldeinterlace: OpenGL deinterlacing filter
opengl:  gltestsrc: Video test source
opengl:  glstereosplit: GLStereoSplit
opengl:  glviewconvert: OpenGL Multiview/3D conversion filter
opengl:  glfilterapp: OpenGL application filter
opengl:  glshader: OpenGL fragment shader filter
opengl:  glcolorscale: OpenGL color scale
opengl:  gleffects_laplacian: Laplacian Convolution Demo Effect
opengl:  gleffects_blur: Blur with 9x9 separable convolution Effect
opengl:  gleffects_sobel: Sobel edge detection Effect
opengl:  gleffects_glow: Glow Lighting Effect
opengl:  gleffects_sin: All Grey but Red Effect
opengl:  gleffects_xray: Glowing negative effect
opengl:  gleffects_lumaxpro: Luma Cross Processing Effect
opengl:  gleffects_xpro: Cross Processing Effect
opengl:  gleffects_sepia: Sepia Toning Effect
opengl:  gleffects_heat: Heat Signature Effect
opengl:  gleffects_square: Square Effect
opengl:  gleffects_bulge: Bulge Effect
opengl:  gleffects_twirl: Twirl Effect
opengl:  gleffects_fisheye: FishEye Effect
opengl:  gleffects_tunnel: Light Tunnel Effect
opengl:  gleffects_stretch: Stretch Effect
opengl:  gleffects_squeeze: Squeeze Effect
opengl:  gleffects_mirror: Mirror Effect
opengl:  gleffects_identity: Do nothing Effect
opengl:  gleffects: Gstreamer OpenGL Effects
opengl:  glfiltercube: OpenGL cube filter
opengl:  glsrcbin: GL Src Bin
opengl:  glsinkbin: GL Sink Bin
opengl:  glfilterbin: GL Filter Bin
opengl:  glcolorbalance: Video balance
opengl:  glcolorconvert: OpenGL color converter
opengl:  gldownload: OpenGL downloader
opengl:  glupload: OpenGL uploader
opengl:  glimagesinkelement: OpenGL video sink
opengl:  glimagesink: GL Sink Bin
pbtypes:  GstVideoMultiviewFlagsSet (GstDynamicTypeFactory)
typefindfunctions: audio/audible: aa, aax
typefindfunctions: audio/x-xi: xi
typefindfunctions: video/x-pva: pva
typefindfunctions: application/x-ssa: ssa, ass
typefindfunctions: application/octet-stream: no extensions
typefindfunctions: image/x-degas: no extensions
typefindfunctions: image/x-icon: no extensions
typefindfunctions: application/x-yuv4mpeg: no extensions
typefindfunctions: image/vnd.wap.wbmp: no extensions
typefindfunctions: image/vnd.adobe.photoshop: psd
typefindfunctions: application/msword: doc
typefindfunctions: application/pdf: pdf
typefindfunctions: audio/x-kss: kss
typefindfunctions: video/x-ivf: ivf
typefindfunctions: audio/x-sap: sap
typefindfunctions: audio/x-vgm: vgm
typefindfunctions: audio/x-gbs: gbs
typefindfunctions: audio/x-ay: ay
typefindfunctions: audio/x-gym: gym
typefindfunctions: audio/x-nsf: nsf
typefindfunctions: video/vivo: viv
typefindfunctions: application/x-mmsh: no extensions
typefindfunctions: multipart/x-mixed-replace: no extensions
typefindfunctions: video/x-dirac: no extensions
typefindfunctions: application/x-ms-dos-executable: dll, exe, ocx, sys, scr, msstyles, cpl
typefindfunctions: application/x-ar: a
typefindfunctions: application/x-tar: tar
typefindfunctions: application/x-rar: rar
typefindfunctions: image/svg+xml: svg
typefindfunctions: application/postscript: ps
typefindfunctions: audio/x-caf: caf
typefindfunctions: audio/x-wavpack-correction: wvc
typefindfunctions: audio/x-wavpack: wv, wvp
typefindfunctions: audio/x-spc: spc
typefindfunctions: audio/aac: aac, adts, adif, loas
typefindfunctions: application/x-executable: no extensions
typefindfunctions: text/x-cmml: no extensions
typefindfunctions: application/x-ogg-skeleton: no extensions
typefindfunctions: audio/x-celt: no extensions
typefindfunctions: audio/x-speex: no extensions
typefindfunctions: application/x-ogm-text: no extensions
typefindfunctions: application/x-ogm-audio: no extensions
typefindfunctions: application/x-ogm-video: no extensions
typefindfunctions: video/x-theora: no extensions
typefindfunctions: audio/x-vorbis: no extensions
typefindfunctions: audio/x-flac: flac
typefindfunctions: application/x-subtitle-vtt: vtt
typefindfunctions: subtitle/x-kate: no extensions
typefindfunctions: application/x-compress: Z
typefindfunctions: application/zip: zip
typefindfunctions: application/x-gzip: gz
typefindfunctions: application/x-bzip: bz2
typefindfunctions: image/x-sun-raster: ras
typefindfunctions: image/x-xpixmap: xpm
typefindfunctions: image/x-jng: jng
typefindfunctions: video/x-mng: mng
typefindfunctions: image/x-xcf: xcf
typefindfunctions: audio/x-sid: sid
typefindfunctions: audio/x-sbc: sbc
typefindfunctions: audio/iLBC-sh: ilbc
typefindfunctions: audio/x-amr-wb-sh: amr
typefindfunctions: audio/x-amr-nb-sh: amr
typefindfunctions: video/x-dv: dv, dif
typefindfunctions: video/x-mve: mve
typefindfunctions: application/mxf: mxf
typefindfunctions: video/x-matroska: mkv, mka, mk3d, webm
typefindfunctions: image/x-portable-pixmap: pnm, ppm, pgm, pbm
typefindfunctions: image/x-exr: exr
typefindfunctions: image/webp: webp
typefindfunctions: image/tiff: tif, tiff
typefindfunctions: image/bmp: bmp
typefindfunctions: image/png: png
typefindfunctions: image/gif: gif
typefindfunctions: image/jpeg: jpg, jpe, jpeg
typefindfunctions: application/x-ape: ape
typefindfunctions: audio/x-shorten: shn
typefindfunctions: audio/x-rf64: rf64
typefindfunctions: audio/x-w64: w64
typefindfunctions: audio/x-ircam: sf
typefindfunctions: audio/x-sds: sds
typefindfunctions: audio/x-voc: voc
typefindfunctions: audio/x-nist: nist
typefindfunctions: audio/x-paris: paf
typefindfunctions: audio/x-svx: iff, svx
typefindfunctions: audio/x-aiff: aiff, aif, aifc
typefindfunctions: audio/x-wav: wav
typefindfunctions: application/xml: xml
typefindfunctions: application/ttml+xml: ttml+xml
typefindfunctions: application/smil: smil
typefindfunctions: application/sdp: sdp
typefindfunctions: application/x-hls: m3u8
typefindfunctions: application/itc: itc
typefindfunctions: text/uri-list: ram
typefindfunctions: text/utf-32: txt
typefindfunctions: text/utf-16: txt
typefindfunctions: text/plain: txt
typefindfunctions: video/x-flv: flv
typefindfunctions: application/vnd.ms-sstr+xml: no extensions
typefindfunctions: application/dash+xml: mpd, MPD
typefindfunctions: application/x-shockwave-flash: swf, swfl
typefindfunctions: application/x-pn-realaudio: ra, ram, rm, rmvb
typefindfunctions: application/vnd.rn-realmedia: ra, ram, rm, rmvb
typefindfunctions: text/html: htm, html
typefindfunctions: video/mj2: mj2
typefindfunctions: image/x-jpc: jpc, j2k
typefindfunctions: image/jp2: jp2
typefindfunctions: image/x-quicktime: qif, qtif, qti
typefindfunctions: video/quicktime: mov, mp4
typefindfunctions: application/x-3gp: 3gp
typefindfunctions: audio/x-m4a: m4a
typefindfunctions: video/x-nuv: nuv
typefindfunctions: video/x-h265: h265, x265, 265
typefindfunctions: video/x-h264: h264, x264, 264
typefindfunctions: video/x-h263: h263, 263
typefindfunctions: video/mpeg4: m4v
typefindfunctions: video/mpeg-elementary: mpv, mpeg, mpg
typefindfunctions: application/ogg: ogg, oga, ogv, ogm, ogx, spx, anx, axa, axv
typefindfunctions: video/mpegts: ts, mts
typefindfunctions: video/mpeg-sys: mpe, mpeg, mpg
typefindfunctions: audio/x-gsm: gsm
typefindfunctions: audio/x-dts: dts
typefindfunctions: audio/x-ac3: ac3, eac3
typefindfunctions: audio/mpeg: mp3, mp2, mp1, mpga
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-ttafile: tta
typefindfunctions: application/x-apetag: mp3, ape, mpc, wv
typefindfunctions: application/x-id3v1: mp3, mp2, mp1, mpga, ogg, flac, tta
typefindfunctions: application/x-id3v2: mp3, mp2, mp1, mpga, ogg, flac, tta
typefindfunctions: video/x-fli: flc, fli
typefindfunctions: audio/mobile-xmf: mxmf
typefindfunctions: audio/riff-midi: mid, midi
typefindfunctions: audio/midi: mid, midi
typefindfunctions: audio/x-imelody: imy, ime, imelody
typefindfunctions: video/x-vcd: dat
typefindfunctions: video/x-cdxa: dat
typefindfunctions: audio/qcelp: qcp
typefindfunctions: video/x-msvideo: avi
typefindfunctions: audio/x-au: au, snd
typefindfunctions: audio/x-musepack: mpc, mpp, mp+
typefindfunctions: video/x-ms-asf: asf, wm, wma, wmv
gio:  giostreamsrc: GIO stream source
gio:  giostreamsink: GIO stream sink
gio:  giosrc: GIO source
gio:  giosink: GIO sink
encoding:  encodebin: Encoder Bin
rawparse:  rawvideoparse: rawvideoparse
rawparse:  rawaudioparse: rawaudioparse
rawparse:  unalignedvideoparse: unalignedvideoparse
rawparse:  unalignedaudioparse: unalignedaudioparse
playback:  parsebin: Parse Bin
playback:  urisourcebin: URI reader
playback:  uridecodebin3: URI Decoder
playback:  uridecodebin: URI Decoder
playback:  decodebin3: Decoder Bin 3
playback:  decodebin: Decoder Bin
playback:  streamsynchronizer: Stream Synchronizer
playback:  subtitleoverlay: Subtitle Overlay
playback:  playsink: Player Sink
playback:  playbin3: Player Bin 3
playback:  playbin: Player Bin 2
app:  appsink: AppSink
app:  appsrc: AppSrc
videoconvert:  videoconvert: Colorspace converter
audioresample:  audioresample: Audio resampler
tcp:  multisocketsink: Multi socket sink
tcp:  multifdsink: Multi filedescriptor sink
tcp:  tcpserversrc: TCP server source
tcp:  tcpserversink: TCP server sink
tcp:  tcpclientsrc: TCP client source
tcp:  tcpclientsink: TCP client sink
tcp:  socketsrc: socket source
coretracers:  leaks (GstTracerFactory)
coretracers:  stats (GstTracerFactory)
coretracers:  rusage (GstTracerFactory)
coretracers:  log (GstTracerFactory)
coretracers:  latency (GstTracerFactory)
adder:  adder: Adder
audioconvert:  audioconvert: Audio converter
subparse:  ssaparse: SSA Subtitle Parser
subparse:  subparse: Subtitle parser
subparse: subparse_typefind: srt, sub, mpsub, mdvd, smi, txt, dks, vtt
coreelements:  streamiddemux: Streamid Demux
coreelements:  valve: Valve element
coreelements:  multiqueue: MultiQueue
coreelements:  typefind: TypeFind
coreelements:  tee: Tee pipe fitting
coreelements:  filesink: File Sink
coreelements:  queue2: Queue 2
coreelements:  queue: Queue
coreelements:  output-selector: Output selector
coreelements:  input-selector: Input selector
coreelements:  identity: Identity
coreelements:  funnel: Funnel pipe fitting
coreelements:  filesrc: File Source
coreelements:  fdsink: Filedescriptor Sink
coreelements:  fdsrc: Filedescriptor Source
coreelements:  fakesink: Fake Sink
coreelements:  fakesrc: Fake Source
coreelements:  downloadbuffer: DownloadBuffer
coreelements:  dataurisrc: data: URI source element
coreelements:  concat: Concat
coreelements:  capsfilter: CapsFilter
videorate:  videorate: Video rate adjuster
staticelements:  bin: Generic bin
staticelements:  pipeline: Pipeline object

Total count: 25 plugins, 253 features

Как исправить среду, чтобы кодеки mp4 и avi работали в gstreamer?

Вывод для apt list gstreamer*:

gstreamer-qapt/focal 3.0.5-1ubuntu1 amd64
gstreamer1.0-adapter-pulseeffects/focal 4.7.1-2 amd64
gstreamer1.0-alsa/focal-updates,focal-security,now 1.16.2-4ubuntu0.1 amd64 [installed]
gstreamer1.0-alsa/focal-updates,focal-security 1.16.2-4ubuntu0.1 i386
gstreamer1.0-autogain-pulseeffects/focal 4.7.1-2 amd64
gstreamer1.0-clutter-3.0/focal,now 3.0.27-1 amd64 [installed]
gstreamer1.0-convolver-pulseeffects/focal 4.7.1-2 amd64
gstreamer1.0-crystalhd/focal 1:0.0~git20110715.fdd2f19-13build1 amd64
gstreamer1.0-crystalhd/focal 1:0.0~git20110715.fdd2f19-13build1 i386
gstreamer1.0-crystalizer-pulseeffects/focal 4.7.1-2 amd64
gstreamer1.0-doc/focal,focal 1.16.2-2 all
gstreamer1.0-espeak/focal 0.5.0-1 amd64
gstreamer1.0-fluendo-mp3/now 0.10.32.debian-1 amd64 [installed,local]
gstreamer1.0-gl/focal-updates,focal-security,now 1.16.2-4ubuntu0.1 amd64 [installed]
gstreamer1.0-gl/focal-updates,focal-security 1.16.2-4ubuntu0.1 i386
gstreamer1.0-gtk3/focal-updates,focal-security,now 1.16.2-1ubuntu2.1 amd64 [installed,automatic]
gstreamer1.0-gtk3/focal-updates,focal-security 1.16.2-1ubuntu2.1 i386
gstreamer1.0-libav-dbg/focal 1.16.2-2 amd64
gstreamer1.0-libav-dbg/focal 1.16.2-2 i386
gstreamer1.0-libav/focal,now 1.16.2-2 amd64 [installed,automatic]
gstreamer1.0-libav/focal 1.16.2-2 i386
gstreamer1.0-nice/focal,now 0.1.16-1 amd64 [installed,automatic]
gstreamer1.0-nice/focal 0.1.16-1 i386
gstreamer1.0-omx-bellagio-config/focal 1.16.2-1 amd64
gstreamer1.0-omx-generic-config/focal 1.16.2-1 amd64
gstreamer1.0-omx-generic/focal 1.16.2-1 amd64
gstreamer1.0-opencv/focal 1.16.2-2.1ubuntu1 amd64
gstreamer1.0-packagekit/focal-updates,focal-security,now 1.1.13-2ubuntu1.1 amd64 [installed]
gstreamer1.0-pipewire/focal 0.2.7-1 amd64
gstreamer1.0-plugins-bad-dbg/focal 1.16.2-2.1ubuntu1 amd64
gstreamer1.0-plugins-bad-dbg/focal 1.16.2-2.1ubuntu1 i386
gstreamer1.0-plugins-bad-doc/focal,focal 1.16.2-2.1ubuntu1 all
gstreamer1.0-plugins-bad/focal,now 1.16.2-2.1ubuntu1 amd64 [installed,automatic]
gstreamer1.0-plugins-bad/focal 1.16.2-2.1ubuntu1 i386
gstreamer1.0-plugins-base-apps/focal-updates,focal-security,now 1.16.2-4ubuntu0.1 amd64 [installed]
gstreamer1.0-plugins-base-apps/focal-updates,focal-security 1.16.2-4ubuntu0.1 i386
gstreamer1.0-plugins-base-dbg/focal-updates,focal-security 1.16.2-4ubuntu0.1 amd64
gstreamer1.0-plugins-base-dbg/focal-updates,focal-security 1.16.2-4ubuntu0.1 i386
gstreamer1.0-plugins-base-doc/focal-updates,focal-updates,focal-security,focal-security 1.16.2-4ubuntu0.1 all
gstreamer1.0-plugins-base/focal-updates,focal-security,now 1.16.2-4ubuntu0.1 amd64 [installed]
gstreamer1.0-plugins-base/focal-updates,focal-security 1.16.2-4ubuntu0.1 i386
gstreamer1.0-plugins-good-dbg/focal-updates,focal-security 1.16.2-1ubuntu2.1 amd64
gstreamer1.0-plugins-good-dbg/focal-updates,focal-security 1.16.2-1ubuntu2.1 i386
gstreamer1.0-plugins-good-doc/focal-updates,focal-updates,focal-security,focal-security 1.16.2-1ubuntu2.1 all
gstreamer1.0-plugins-good/focal-updates,focal-security,now 1.16.2-1ubuntu2.1 amd64 [installed]
gstreamer1.0-plugins-good/focal-updates,focal-security 1.16.2-1ubuntu2.1 i386
gstreamer1.0-plugins-rtp/focal 1.14.4.1 amd64
gstreamer1.0-plugins-ugly-dbg/focal 1.16.2-2build1 amd64
gstreamer1.0-plugins-ugly-dbg/focal 1.16.2-2build1 i386
gstreamer1.0-plugins-ugly-doc/focal,focal 1.16.2-2build1 all
gstreamer1.0-plugins-ugly/focal,now 1.16.2-2build1 amd64 [installed,automatic]
gstreamer1.0-plugins-ugly/focal 1.16.2-2build1 i386
gstreamer1.0-pocketsphinx/focal 0.8.0+real5prealpha+1-6ubuntu4 amd64
gstreamer1.0-pulseaudio/focal-updates,focal-security,now 1.16.2-1ubuntu2.1 amd64 [installed]
gstreamer1.0-pulseaudio/focal-updates,focal-security 1.16.2-1ubuntu2.1 i386
gstreamer1.0-python3-dbg-plugin-loader/focal 1.16.2-2 amd64
gstreamer1.0-python3-plugin-loader/focal 1.16.2-2 amd64
gstreamer1.0-qt5/focal-updates,focal-security 1.16.2-1ubuntu2.1 amd64
gstreamer1.0-qt5/focal-updates,focal-security 1.16.2-1ubuntu2.1 i386
gstreamer1.0-rtsp-dbg/focal 1.16.2-3 amd64
gstreamer1.0-rtsp/focal 1.16.2-3 amd64
gstreamer1.0-tools/focal,now 1.16.2-2 amd64 [installed]
gstreamer1.0-tools/focal 1.16.2-2 i386
gstreamer1.0-vaapi-doc/focal,focal 1.16.2-2 all
gstreamer1.0-vaapi/focal,now 1.16.2-2 amd64 [installed,automatic]
gstreamer1.0-x/focal-updates,focal-security,now 1.16.2-4ubuntu0.1 amd64 [installed]
gstreamer1.0-x/focal-updates,focal-security 1.16.2-4ubuntu0.1 i386