c9a841a376
The backend uses triple buffering in the background to prefetch some buffers. However, at some point it tries to invoke SetCurrentPosition beyond the end of the file. MSDN states that for IMFByteStream one should return E_INVALIDARG, but that has negative sideeffects. What happens is that immediately MF_MEDIA_ENGINE_ERR_DECODE is sent causing the playback to stop, even if there are still valid buffers in the queue. The example in the bug reports causes up to 5 seconds of playback to be lost. This can also be reproduced with larger files. To circumvent this, return S_FALSE instead to still notify that seeking in the buffer did not work. Task-number: QTBUG-49236 Change-Id: Id4b093bf9480f5d02c7f9191fa4424f51c60e078 Reviewed-by: Andrew Knight <andrew.knight@intopalo.com> Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>