https://bugs.winehq.org/show_bug.cgi?id=47905 Bradley Grainger <bgrainger(a)gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |bgrainger(a)gmail.com --- Comment #48 from Bradley Grainger <bgrainger(a)gmail.com> --- Libronix.DigitalLibrary.Media.MediaPlaybackSpeed.get_ActualSpeed is throwing an InvalidOperationException because an internal state variable, "AllowedSpeed" is false. The Logos Media Player has a hard-coded list of speeds: 0.75, 1.0, 1.4, 2.0. For each speed, it queries if the underlying system media player supports it. For MediaFoundation on Windows, this is implemented by IMFRateSupport::IsRateSupported (https://docs.microsoft.com/en-us/windows/win32/api/mfidl/nf-mfidl-imfratesup...). The IMFRateSupport service is retrieved from MFGetService (https://docs.microsoft.com/en-us/windows/win32/api/mfidl/nf-mfidl-mfgetservi...). In the log, I see: 010c:fixme:mfplat:session_rate_support_IsRateSupported 000000004636C830, 1, 0.750000, 000000000041DEF0. 010c:fixme:mfplat:session_rate_support_IsRateSupported 000000004636C830, 1, 1.000000, 000000000041DEF0. 010c:fixme:mfplat:session_rate_support_IsRateSupported 000000004636C830, 1, 1.400000, 000000000041DEF0. 010c:fixme:mfplat:session_rate_support_IsRateSupported 000000004636C830, 1, 2.000000, 000000000041DEF0. This is an unimplemented feature in Wine that Logos 9 requires: https://source.winehq.org/git/wine.git/blob/HEAD:/dlls/mf/session.c#l3560 -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.