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Hi experts, I started a demo for an IP camera with rtsp capabilities and wrote a small program for displaying the rtsp stream using gstreamer. Everything works fine. When analysing the event features I recognized several event triggers on "StartvideoStream? So I expected to get one trigger only...

Found the reason.
I loaded the libs manually and did not finish the path string with \

Using: ffmpeg\bin --> error
Using: ffmpeg\bin\ --> success

Thank you!

Thanks for your input. I have analysed the libFFMPEG_dynamic_dll_init behaviour. There is this subroutine GetFFMpegLib() for av_format This calls FindFFMpegDll() and should return True when it finds avformat-59.dll The algorithm in FindFFMpegDll() is quite clear. The routine loops down from MaxVersi...

Hi, I face some issue when trying to load the ffmpeg libraries - the code says that it is not supported. First I used the libs from the old download link given here in a previous post: avcodec-56.dll avdevice-56.dll avfilter-5.dll avformat-56.dll avutil-54.dll swresample-1.dll swscale-3.dll The plat...

Found the problem!

You have to set the device type to rvdtRTSP. Now the camview works fine for me! I can even switch the cam side by changing the device-index!

Thanks for your support!!!

Sorry to ask this probably silly question. But what has to be defined aside with launchstring to run the gstreamer code. If I set VideoDeviceIndex to 0 I still get the errorous behaviour. What do I need to additionally set in the RVCamera component to run the gstreamer launchstring? Only setting the...

Update: I made a small test program showing the camera modes and selecting a specific one (1280x720, 16bpp, YUY2). On my Windows 10 Pro developer notebook this configuration works fine. On my Windows 11 pro tablet this configuration does not work and shows the animated dots only (even if I wait for ...

Quick update:

I tested the webcam with this gstreamer command line: gst-launch-1.0 mfvideosrc device-index=0 ! autovideosink sync=false
The video was clear and it worked via Direct3D11

A switch from device index 0 to device index 1 was also positive (switch between front and rear webcam)

Just went through the blog and found a similar post (at least the result on the desktop):
viewtopic.php?p=41495&hilit=webcam#p41495

I checked the DirectX with DxDiag but no fail.
And I checked with the webcamtests.com site and got no failures.

Thanks for your suggestion. I followed your guidelines and started the WebCamera project. There was no debug\ output at all. But I tried some variants of the webcamera project, probably this helps to find the issue: 1. I started Webcamera VCL project and the option "1920x1440 16bits YUY2"s...

Good evening, Yes I have already tried the WebCamera demo as well and had the same results. No matter what I selected on the tablet, I got same results with each configuration. Interesting that the "Camera" app from Microsoft works as expected. Could it be some design-time setting/params i...

I just had some good progress in programming with the rvmedia suite . but currently I´m stuck in an issue regarding my front and rear camera on a windows tablet: The tablet runs Windows 11 Pro. I use the Webcam demo and also the WebcamMulti demo Both run on my developer notebook as expected (webcam ...

Changed the code according to your suggestion - and it worked!
Thank you for your quick reply!

Update: I analyzed the project by using your madExcept unit. It showed that the failure is in unit fmxMRVCamView: ERangeError I have set a breakpoint in the initialization section, it seems that the original problem is in this command: Screen_Cursors[crSRV_MOVE_LEFT] := LoadCursor(HInstance, 'CURLEF...

Thank you for these hints. I compared the project options between the working demo and a new project with a TRVCamera dropped on the canvas. There was no difference, neither were the runtime packages linked as you mentioned. An interesting detail: compiling the project under Windows 64bits works wit...