Issues with starting camera stream when color model is rvcmOther

RVMedia support and discussion (components for displaying and controlling IP cameras, webcams, video conferencing, video chats, recording audio and video files)
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atshurelov
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Joined: Tue Jan 25, 2022 9:01 am

Issues with starting camera stream when color model is rvcmOther

Post by atshurelov »

Hello Mr. Tkachenko,

We recently updated RVMedia VCL components to v8.2.
However after the update, we started observing issues in our program when we try to start a camera stream, with configuration with color model set to rvcmOther.
To clarify, the webcam(ELP-USBFHD06H-L36) we are testing with supports rvcmOther and rvcmYV color models. If the chosen model is YV there is no crash, however the stream sometimes doesn’t start.
If the chosen configuration is with color mode rvcmOther however, it always crashes with error message - 'Cannot assign a TJPEGImage to a TBitmap'

Would you be so kind as to let us know if such issues have already been reported? Possibly a direction in which we can further investigate, as it is an important functionality for our software product and we would like to resolve it as soon as possible.

Regards,
Atanas
TEST-OK
Sergey Tkachenko
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Re: Issues with starting camera stream when color model is rvcmOther

Post by Sergey Tkachenko »

Sorry, the mode where a local web camera provides frames as jpeg is quite a rare one, so we were not able to test it properly.
I'll send a fix to you tomorrow.
Sergey Tkachenko
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Re: Issues with starting camera stream when color model is rvcmOther

Post by Sergey Tkachenko »

Finally, it appeared that the problem was in using runtime packages, so that several TBitmap classes were defined in the application and in packages.
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