Hi Yoann See inline:
Am 30.05.2014 12:26, schrieb Lopes Yoann: > On May 28, 2014, at 9:45 AM, Neuer User wrote: >> >> While the MediaPlayer in Qt5 is really great (especially with the new >> zero-copy patch for imx6 in Qt5.3!), the "playbin" and "camerabin" >> elements are not flexible enough and are not able to work with most IP >> cams or with local analog video sources. > > It should work with most IP cams and local analog video sources... Could you > give more details about what doesn't work? > IP cameras following the OnVif standard also publish a metadata stream, which is not necessary for streaming video, but the playbin element errors out on not finding a suitable decoder for this stream. Bug report see here: https://bugzilla.gnome.org/show_bug.cgi?id=730868 "Analog cams" (webcams, to be correct) I tested a couple of weeks back and had very problematic results (took 5-10 seconds to initialize and cgot a fps of 1 frame per 5 seconds). The pipeline built by the "camerabin" element was very complex. The video stream can normally easily be displayed with either "tvsrc ! mfw_v4lsink" or "v4l2src ! mf2_v4lsink", depending on type of camera. You see, all of this is on imx6 platform. I would need to go into testing again and build a detailed bug report for the analog cam problem, but I thought it is much easier and also much more flexible to go instead for the solution of having custom QML pipelines in MediaPlayer. >> >> How difficult would it be to modify the MediaPlayer element, so that it >> would accept custom gstreamer pipelines? >> >> I think this would be very helpful for Qt5. I would need it very urgent >> and would be willing to sponsor such a development. >> >> What do you think? Anybody could help here? > > Your best option is probably to modify the GStreamer backend in Qt to suit > your needs. > Btw. I opened a suggestion on Qt-Project (https://bugreports.qt-project.org/browse/QTBUG-39327) with some more details. I think this would be a very useful addition to Qt5. I would be willing to sponsor the development either partly or fully, depending on the amount necessary. Michael > -- > Yoann > _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
