[Bug 745667] New: GstVolume: Unable to set the volume with gcc-4.9 on arm platform

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=745667

            Bug ID: 745667
           Summary: GstVolume: Unable to set the volume with gcc-4.9 on
                    arm platform
    Classification: Platform
           Product: GStreamer
           Version: 1.4.1
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: gst-plugins-base
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: scerveau at gmail.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

The volume can not be set with gstvolume using gstreamer-1.4.1 and gcc-4.9 on
armv7 with hardfloat activated.

Whith this pipeline:

gst-launch-1.0 audiotestsrc ! volume volume=0.5 ! alsasink

The sound level is equal to 0 instead of half of the standard volume. If i
put volume=1 this is working properly.
Affter investigation i understood that it is related to this line

gstvolume.c:251 self->current_volume = volume; in volume_update_volume

If i put any log just after this line, the behaviour is coming back to
normal. If i compile with -00 it's also working fine. 

The bug can be reproduced on either rpi2 or imx6q.

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