Created attachment 181396 [details] Sample slide (PPTX) with video Here we have a slide with a video playing (in an infinite loop) in the background and some elements in the forefront. Impress does not show these elements while the video plays nor after, though it does show them in edit mode. Version: 7.5.0.0.alpha0+ / LibreOffice Community Build ID: 41f02927b6d8470c298c8a2f407c98420a5ebe24 CPU threads: 8; OS: Linux 5.18; UI render: default; VCL: gtk3 Locale: en-US (en_US.UTF-8); UI: en-US Calc: threaded (Similarly for 6.4 - 7.3 I tested.)
Created attachment 181397 [details] Screenshot with PowerPoint in presentation mode
Confirmed using LO 7.5.0.0.alpha0+ (28daee8a3252e03a67484dc8d3dd26fd73af4826) / Ubuntu. In earlier versions, eg. 4.x the video doesn't even play, probably due to some codec or multimedia lib issue. We can probably assume this was never okay.
Created attachment 181501 [details] Alternate, more complex, sample document (PPTX) I wonder whether / believe that this, somewhat more complex, sample document with two slides including a background video is about the same issue - if possibly from a slightly different angle.
Still reproducible in Version: 7.6.0.0.alpha1+ (X86_64) / LibreOffice Community Build ID: 244f9cf66bc36f229ccb5712bc8d80166b92266d CPU threads: 8; OS: Linux 5.10; UI render: default; VCL: gtk3 Locale: es-ES (es_ES.UTF-8); UI: en-US Calc: threaded
Still an issue in: Version: 24.2.1.2 (X86_64) / LibreOffice Community Build ID: db4def46b0453cc22e2d0305797cf981b68ef5ac CPU threads: 8; OS: Windows 10.0 Build 22631; UI render: Skia/Raster; VCL: win Locale: en-US (en_US); UI: en-US Calc: CL threaded - - - I have 2 monitors, so when I pressed F5: - 1st screen had presentation playing. - 2nd screen had "Current Slide" + "Next Slide" thumbnails playing. - - - In attachment 181397 [details] (comment 0): Both screens acted different: - 1st = only background video playing - 2nd = background video playing + constant white screen flashing of "Dev->QA->Prod" - - - In attachment 181501 [details] (comment 3): Both screens were the same: - Background video was playing. - Could see animations moving/playing above the video. - Constant black rectangle flashing. - - - So both attachments were still busted, but in slightly different ways. Seems like there's constant flickering between the background (video) + foreground layers.