Bug 1149885
| Summary: | Qt5 multimedia and webkit depend on conflicting GStreamer versions | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Vesa Halttunen <vesuri> | ||||
| Component: | qt5-qtmultimedia | Assignee: | Rex Dieter <rdieter> | ||||
| Status: | CLOSED EOL | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
| Severity: | unspecified | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 20 | CC: | jgrulich, jreznik, kevin, ltinkl, rdieter, rnovacek, than | ||||
| Target Milestone: | --- | Keywords: | Reopened | ||||
| Target Release: | --- | ||||||
| Hardware: | i386 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2015-06-30 01:10:05 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Bug Depends On: | |||||||
| Bug Blocks: | 1092641 | ||||||
| Attachments: |
|
||||||
We cannot fix this until upstream ports QtMultimedia to GStreamer 1. If / as long as that doesn't happen, consider QtMultimedia (both the Qt 4 and Qt 5 versions) basically no longer supported under Fedora. PS: For developers, we strongly recommend using kf5-phonon (or for Qt 4, the original phonon) instead, which is actually actively maintained and supports GStreamer 1. For qt5-qtmultimedia, there's some code in wip/gstreamer-1.0, I don't know what the status is though. The Jolla people, who have been doing the port, have this to say: https://together.jolla.com/question/54393/please-release-gstreamer-10/ > QtMultimedia patches have been submitted and waiting for review. So it looks like that stuff might already be shippable, we should consider it. Either that, or we set qt5-qtwebkit to use gst-0.10 for fedora <= 20 For Fedora <= 20, that (using GStreamer 0.10 in qt5-qtwebkit) might possibly make sense (also because Phonon is also using 0.10 there), but surely not for F21+ where we moved everything to GStreamer 1. Working on merging the gstreamer-1.0 branch patches now. This message is a reminder that Fedora 20 is nearing its end of life. Approximately 4 (four) weeks from now Fedora will stop maintaining and issuing updates for Fedora 20. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as EOL if it remains open with a Fedora 'version' of '20'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version. Thank you for reporting this issue and we are sorry that we were not able to fix it before Fedora 20 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora, you are encouraged change the 'version' to a later Fedora version prior this bug is closed as described in the policy above. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete. Fedora 20 changed to end-of-life (EOL) status on 2015-06-23. Fedora 20 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed. |
Created attachment 944371 [details] Test case for the problem Description of problem: qt5-qtmultimedia and qt5-qtwebkit are built in such a way that using both of them in the same application is not possible. When executing an application that uses both of them, the output shows GLib-GObject-WARNING **: cannot register existing type 'GstObject' and the application does not work properly. This happens because qt5-qtwebkit is built against GStreamer 1.x and qt5-qtmultimedia is built against GStreamer 0.x: $ ldd /usr/lib/libQt5WebKitWidgets.so.5 | grep gstreamer libgstreamer-1.0.so.0 => /lib/libgstreamer-1.0.so.0 (0xb3cc1000) $ ldd /usr/lib/qt5/plugins/mediaservice/libgstmediaplayer.so | grep gstreamer libgstreamer-0.10.so.0 => /lib/libgstreamer-0.10.so.0 (0xb7575000) Version-Release number of selected component (if applicable): 5.3.2, also applies to earlier versions How reproducible: 100% Steps to Reproduce: 1. Write a Qt application with QT += webkitwidgets multimediawidgets in the .pro file 2. Instantiate QMediaPlayer and QGraphicsWebView in the application 3. Run the application Actual results: The application does not function correctly. Output: (qtbug:7505): GLib-GObject-WARNING **: cannot register existing type 'GstObject' (qtbug:7505): GLib-CRITICAL **: g_once_init_leave: assertion 'result != 0' failed (qtbug:7505): GLib-GObject-CRITICAL **: g_type_register_static: assertion 'parent_type > 0' failed (qtbug:7505): GLib-CRITICAL **: g_once_init_leave: assertion 'result != 0' failed (qtbug:7505): GStreamer-CRITICAL **: gst_element_class_set_details_simple: assertion 'GST_IS_ELEMENT_CLASS (klass)' failed (qtbug:7505): GStreamer-WARNING **: static caps 0xb1ebd7ec string is NULL (qtbug:7505): GStreamer-CRITICAL **: gst_mini_object_unref: assertion 'mini_object != NULL' failed (qtbug:7505): GStreamer-WARNING **: static caps 0xb1ebd7ac string is NULL (qtbug:7505): GStreamer-CRITICAL **: gst_mini_object_unref: assertion 'mini_object != NULL' failed (qtbug:7505): GStreamer-WARNING **: static caps 0xb1ebd7ec string is NULL (qtbug:7505): GStreamer-CRITICAL **: gst_mini_object_unref: assertion 'mini_object != NULL' failed Expected results: The application functions correctly. No output.