Bug#785874: No h.264 support in stable and sid

[Peter Spiess-Knafl <psk@autistici.org>]

Hi!

It is also worth mentioning, that the current state of qt5-multimedia
does not allow decoding H.264 videos using the Qml Video element.

The package needs gstreamer0.10-ffmpeg to successfully play h.264 videos
from Qt applications.

qstreamer0.10-ffmpeg is no longer available in jessie or sid. One has to
import oldstable into sources.list and set appropriate pinnings to allow
installing this package.

I think this is related to the mentioned request to use gstreamer1.0. I
noticed there is a gstreamer1.0-libav package, but it does not allow for
h.264 playback in Qt.

Thank you and greetings
Peter