D19102: Fix extraction of aspect ratio property

[Alexander Stippich]

astippich created this revision.
astippich added reviewers: bruns, ngraham.
Herald added projects: Frameworks, Baloo.
Herald added subscribers: Baloo, kde-frameworks-devel.
astippich requested review of this revision.

REVISION SUMMARY
  The extraction of the aspect ratio was broken
  for multiple reasons. Using the function
  provided by ffmpeg fixes this.

REPOSITORY
  R286 KFileMetaData

BRANCH
  ffmpeg_aspectratio

REVISION DETAIL
  https://phabricator.kde.org/D19102

AFFECTED FILES
  autotests/ffmpegextractortest.cpp
  autotests/propertyinfotest.cpp
  src/extractors/ffmpegextractor.cpp
  src/formatstrings.cpp
  src/formatstrings_p.h
  src/propertyinfo.cpp

To: astippich, bruns, ngraham
Cc: kde-frameworks-devel, #baloo, ashaposhnikov, michaelh, astippich, spoorun, ngraham, bruns, abrahams
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