Package: libspice-client-glib-2.0-8 Version: 0.33-3.3 Severity: normal Dear Maintainer,
The spice-gtk source packages now Build-Depends on: gstreamer1.0-tools, gstreamer1.0-plugins-bad, gstreamer1.0-plugins-base, gstreamer1.0-plugins-good, gstreamer1.0-libav, However in reality it does not need any of these packages to build. These dependencies were wrongly added as a result of bug 841932 which mentions these configure warnings: configure: WARNING: Cannot verify that the required runtime GStreamer 1.0 elements are present because gst-inspect-1.0 is missing configure: WARNING: The audioconvert audioresample appsink GStreamer element(s) are missing. You should be able to find them in the gst-plugins-base 1.0 package. configure: WARNING: The autoaudiosrc GStreamer element(s) are missing. You should be able to find them in the gst-plugins-good 1.0 package. configure: WARNING: The GStreamer 1.0 audio backend can be built but may not work. configure: WARNING: The appsrc videoconvert appsink GStreamer element(s) are missing. You should be able to find them in the gst-plugins-base 1.0 package. configure: WARNING: The jpegdec vp8dec GStreamer element(s) are missing. You should be able to find them in the gst-plugins-good 1.0 package.i configure: WARNING: The h264parse GStreamer element(s) are missing. You should be able to find them in the gst-plugins-bad 1.0 package. configure: WARNING: The avdec_h264 GStreamer element(s) are missing. You should be able to find them in the gstreamer-libav 1.0 package. configure: WARNING: The GStreamer video decoder can be built but may not work. These messages explicitly mention that the audio and video GStreamer-based decoders can be built without these plugins. So the above packages should not be Build-Depends. The only reason why the configure script has these warnings is to remind Spice developers that if they plan on using or testing the GStreamer decoders they will also need one or more of these plugins. Which brings me to the second issue in the spice-gtk source package, libspice-client-glib-2.0-8 now Depends on: gstreamer1.0-plugins-bad, gstreamer1.0-plugins-base, gstreamer1.0-plugins-good, gstreamer1.0-libav This is also incorrect. The Spice client works just fine without these plugins, it will just not be able to use GStreamer if the corresponding plugins are missing. More precisely it will check whether these GStreamer plugins are present at runtime and will not advertise support for a video format impacted by a missing GStreamer plugin. This runtime negotiation ensures that the server will not send video in a format the client cannot handle. Also note that the Spice client still has the built-in MJPEG video decoder (which does not depend on GStreamer) and thus will still be able to perform video streaming even if all the GStreamer plugins are missing. So these should be Suggests or Recommends at most. (I don't have a strong opinion on either option) -- System Information: Debian Release: 9.0 APT prefers testing APT policy: (990, 'testing'), (500, 'stable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.9.0-2-amd64 (SMP w/8 CPU cores) Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages libspice-client-glib-2.0-8 depends on: ii gstreamer1.0-libav 1:1.10.4-dmo1 ii gstreamer1.0-plugins-bad 1:1.10.4-dmo2 ii gstreamer1.0-plugins-base 1.10.4-1+ma1 ii gstreamer1.0-plugins-good 1.10.4-1 ii libc6 2.24-10 ii libcacard0 1:2.5.0-3 ii libglib2.0-0 2.50.3-2+ma1 ii libgstreamer-plugins-base1.0-0 1.10.4-1+ma1 ii libgstreamer1.0-0 1.10.4-1+ma1 ii libjpeg62-turbo 1:1.5.1-2 ii liblz4-1 0.0~r131-2+b1 ii libopus0 1.2~alpha2-1 ii libphodav-2.0-0 2.1-1 ii libpixman-1-0 0.34.0-1 ii libpulse-mainloop-glib0 10.0-1 ii libpulse0 10.0-1 ii libsasl2-2 2.1.27~101-g0780600+dfsg-3 ii libsoup2.4-1 2.56.0-2 ii libssl1.1 1.1.0e-2 ii libusb-1.0-0 2:1.0.21-1 ii libusbredirhost1 0.7.1-1 ii libusbredirparser1 0.7.1-1 ii spice-client-glib-usb-acl-helper 0.33-3.3 ii zlib1g 1:1.2.8.dfsg-5 libspice-client-glib-2.0-8 recommends no packages. libspice-client-glib-2.0-8 suggests no packages. -- no debconf information
