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

[GStreamer (GNOME Bugzilla)]

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

Sebastian Dröge (slomo) <slomo at coaxion.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED
   Target Milestone|git master                  |1.5.1

--- Comment #8 from Sebastian Dröge (slomo) <slomo at coaxion.net> ---
commit 40f4daffd12b84dceb23942a992815e11b5a0839
Author: Sebastian Dröge <sebastian at centricular.com>
Date:   Thu Mar 5 12:31:06 2015 +0100

    volume: Explicitly cast integers to doubles and then back to integers after
multiplication

    gcc 4.9.1 on ARM seems to have a bug that causes it to cast the float to an
    integer first, resulting in a 0 scale factor for volume < 1.0.

    As a side effect this change here will also improve accuracy of the result
a
    bit because we go via doubles instead of floats.

    https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65325
    https://bugzilla.gnome.org/show_bug.cgi?id=745667

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