Search found 24 matches

by darvin
Wed Nov 06, 2024 1:55 pm
Forum: RVMedia
Topic: TRvCam und WebRTC
Replies: 1
Views: 844

TRvCam und WebRTC

Hi community,

Is there a way to add WebRTC video sources to the cam component? Any suggestions are appreciated.
Thank you in advance

Mario
by darvin
Wed Sep 13, 2023 3:41 pm
Forum: RVMedia
Topic: TRVCamera and OnStartVideoStream
Replies: 0
Views: 119350

TRVCamera and OnStartVideoStream

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 ...
by darvin
Wed Apr 26, 2023 9:44 am
Forum: RVMedia
Topic: FFMPEG Libraries with Windows 8.1 on a Pentium Tablet
Replies: 4
Views: 35393

Re: FFMPEG Libraries with Windows 8.1 on a Pentium Tablet

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!
by darvin
Fri Apr 21, 2023 1:03 pm
Forum: RVMedia
Topic: FFMPEG Libraries with Windows 8.1 on a Pentium Tablet
Replies: 4
Views: 35393

Re: FFMPEG Libraries with Windows 8.1 on a Pentium Tablet

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 ...
by darvin
Wed Apr 19, 2023 10:11 am
Forum: RVMedia
Topic: FFMPEG Libraries with Windows 8.1 on a Pentium Tablet
Replies: 4
Views: 35393

FFMPEG Libraries with Windows 8.1 on a Pentium Tablet

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 ...
by darvin
Fri Mar 03, 2023 7:44 am
Forum: RVMedia
Topic: RVCamera Demo for Webcam not showing up on Windows tablet
Replies: 10
Views: 55601

Re: RVCamera Demo for Webcam not showing up on Windows tablet

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!!!
by darvin
Fri Mar 03, 2023 7:40 am
Forum: RVMedia
Topic: RVCamera Demo for Webcam not showing up on Windows tablet
Replies: 10
Views: 55601

Re: RVCamera Demo for Webcam not showing up on Windows tablet

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 ...
by darvin
Thu Mar 02, 2023 5:29 pm
Forum: RVMedia
Topic: RVCamera Demo for Webcam not showing up on Windows tablet
Replies: 10
Views: 55601

Re: RVCamera Demo for Webcam not showing up on Windows tablet

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 ...
by darvin
Thu Mar 02, 2023 4:48 pm
Forum: RVMedia
Topic: RVCamera Demo for Webcam not showing up on Windows tablet
Replies: 10
Views: 55601

Re: RVCamera Demo for Webcam not showing up on Windows tablet

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)
by darvin
Thu Mar 02, 2023 4:15 pm
Forum: RVMedia
Topic: RVCamera Demo for Webcam not showing up on Windows tablet
Replies: 10
Views: 55601

Re: RVCamera Demo for Webcam not showing up on Windows tablet

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.
by darvin
Wed Mar 01, 2023 11:58 am
Forum: RVMedia
Topic: RVCamera Demo for Webcam not showing up on Windows tablet
Replies: 10
Views: 55601

Re: RVCamera Demo for Webcam not showing up on Windows tablet

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"shoed the ...
by darvin
Mon Feb 27, 2023 8:00 pm
Forum: RVMedia
Topic: RVCamera Demo for Webcam not showing up on Windows tablet
Replies: 10
Views: 55601

Re: RVCamera Demo for Webcam not showing up on Windows tablet

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 in the ...
by darvin
Mon Feb 27, 2023 6:21 pm
Forum: RVMedia
Topic: RVCamera Demo for Webcam not showing up on Windows tablet
Replies: 10
Views: 55601

RVCamera Demo for Webcam not showing up on Windows tablet

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 ...
by darvin
Mon Feb 06, 2023 7:25 am
Forum: RVMedia
Topic: Runtime Error 217 - TRVCamera
Replies: 6
Views: 39831

Re: Runtime Error 217 - TRVCamera

Changed the code according to your suggestion - and it worked!
Thank you for your quick reply!
by darvin
Sat Feb 04, 2023 9:56 pm
Forum: RVMedia
Topic: Runtime Error 217 - TRVCamera
Replies: 6
Views: 39831

Re: Runtime Error 217 - TRVCamera

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 ...