Wesley Bobato

Hello everyone, I created a simple project that uses Camera and Effects with FMX unfortunately this project is generating some unknown runtime errors I can't find the root of the problem I added in the DPR file all FMX options 1. Slow processing when GlobalUseGPUCanvas = false 2. When I use the effects after a while it crashes, it does not allow to stop the camera and etc. To generate the different errors you can uncomment the lines of the DPR file. 1. Activate the camera. 2. Click on effects. 3. Use the effects options. 4. Disable the camera. 5. Repeat steps 1 through 4. DPR file lines to uncomment. // GlobalUseHWEffects := False; // GlobalDisableFocusEffect := True; // GlobalUseDX := False; // GlobalUseDXInDX9Mode := True; // GlobalUseDXSoftware := True; // GlobalUseDirect2D := False; // GlobalUseGDIPlusClearType := False; // GlobalUseGPUCanvas := True; // GlobalUseDX10 := False; // GlobalUseDX10Software := False; I added FastMM4 is commented in the DPR file // FastMM4, As you use the effects combining with DPR file options uncomment the different lines kinds of problems appear. I noticed that the amount of camera FPS gets smaller at times as well. I am using Windows 7 SP1 and Delphi 10.3.2, errors appear in Win 32/64 Debug and Release environment. Could someone help me locate these errors for me to create a ticket in the quality portal of embarcadero? Thank you all. [Download] Camera.zip

Hello it is very difficult to find the possible locations where the problem occurs, my intuition after examining all the points of the stack, is that the problem is related to "FMX.Media" some synchronization not working properly, I get several errors after a few minutes of testing. Particularly the line reported by @fm did not occur here in my tests, I tested this project's compile on another computer and got different errors on Win10. Any suggestions how I can report this to embarcadero? Thank you all.

Thanks a lot @Dave and @fm I will try to track these errors in the coming days I will post here soon.

@f.m thank you very much for your generous attention again :) I tested your suggestion but unfortunately generated a very long delay was crashing a lot. Based on your suggestion I changed a few lines. This didn't work correctly either, but it is having a shorter delay. When you have thrown exceptions on your computer you can capture which unit or line of code it is in. is this occurring? Here on my computer I can't capture the location of the problem even with Debug and FastMM4. I believe there is a problem with TVideoCaptureDevice but it is very difficult to capture the location Do you know any way to track where these exceptions occur in Delphi? Kind regards.

@f.m Thanks for your attention.