Re: CUVA webcam light comes on but no local video

ChuckHaynes · ‎06-27-2020

CIPC 8.6.6.1

CUVA 2.3.2.0

Dell Precision m4800 with Windows 10. When attempting to use the built-in webcam with CUVA, then webcam light comes on, but no video is ever displayed on the local side. When using an external webcam (Logitech HD Pro Webcam C920), the local video works correctly. So it seems just to be an issue with the native webcam.

Does anyone have an ideas?

Thanks

ChuckHaynes · ‎06-28-2020

I found this in the logs.

2020-06-28 09:14:07,756 WARN [0x00000f20] [cpve] [.<ctxt:GStreamer,thread:3872>(0)] - camdecode [taajpegdec.c(257), taa_jpegdec_chain()]-> UNSUPPORTED_RESOLUTION
2020-06-28 09:14:07,884 WARN [0x00000f20] [cpve] [.<ctxt:GStreamer,thread:3872>(0)] - camdecode [taajpegdec.c(257), taa_jpegdec_chain()]-> UNSUPPORTED_RESOLUTION
2020-06-28 09:14:08,028 WARN [0x00000f20] [cpve] [.<ctxt:GStreamer,thread:3872>(0)] - camdecode [taajpegdec.c(257), taa_jpegdec_chain()]-> UNSUPPORTED_RESOLUTION
2020-06-28 09:14:08,156 WARN [0x00000f20] [cpve] [.<ctxt:GStreamer,thread:3872>(0)] - camdecode [taajpegdec.c(257), taa_jpegdec_chain()]-> UNSUPPORTED_RESOLUTION
2020-06-28 09:14:08,177 DEBUG [0x00002bdc] [cpve] [CSF.media::rtp::VideoSessionImpl::getMediaStatistics(1758)] - Entering [session_id=0].
2020-06-28 09:14:08,177 DEBUG [0x00002bdc] [cpve] [CSF.media::rtp::SessionImpl::isClosed(191)] - Entering [session_id=0].
2020-06-28 09:14:08,177 DEBUG [0x00002bdc] [cpve] [CSF.media::rtp::SessionImpl::isClosed(197)] - Returning false :
2020-06-28 09:14:08,177 DEBUG [0x00002bdc] [cpve] [CSF.media::rtp::SessionImpl::isClosed(191)] - Exiting
2020-06-28 09:14:08,177 DEBUG [0x00002bdc] [cpve] [CSF.media::rtp::VideoSessionImpl::getMediaStatisticsWithLock(1779)] - Entering [session_id=0].
2020-06-28 09:14:08,177 DEBUG [0x00002bdc] [cpve] [CSF.media::rtp::SessionImpl::isClosed(191)] - Entering [session_id=0].
2020-06-28 09:14:08,177 DEBUG [0x00002bdc] [cpve] [CSF.media::rtp::SessionImpl::isClosed(197)] - Returning false :
2020-06-28 09:14:08,177 DEBUG [0x00002bdc] [cpve] [CSF.media::rtp::SessionImpl::isClosed(191)] - Exiting
2020-06-28 09:14:08,177 DEBUG [0x00002bdc] [cpve] [CSF.media::rtp::SessionImpl::populateCommonMediaStatistics(1061)] - Entering [mediaStatistics=0x05cc787c, session_id=0].
2020-06-28 09:14:08,177 DEBUG [0x00002bdc] [cpve] [CSF.media::rtp::SessionImpl::populateCommonMediaStatistics(1101)] - Returning true : statistics poulated
2020-06-28 09:14:08,177 DEBUG [0x00002bdc] [cpve] [CSF.media::rtp::SessionImpl::populateCommonMediaStatistics(1061)] - Exiting
2020-06-28 09:14:08,177 DEBUG [0x00002bdc] [cpve] [CSF.media::rtp::VideoSessionImpl::populateStatistics(1830)] - Entering [videoStatistics=0x05cc7860, session_id=0].
2020-06-28 09:14:08,177 DEBUG [0x00002bdc] [cpve] [CSF.media::rtp::SessionImpl::isTransmitting(204)] - Entering [session_id=0].
2020-06-28 09:14:08,177 DEBUG [0x00002bdc] [cpve] [CSF.media::rtp::SessionImpl::isTransmitting(211)] - Returning true : Session is transmitting. media_type: video, label: main, session_id: 0
2020-06-28 09:14:08,177 DEBUG [0x00002bdc] [cpve] [CSF.media::rtp::SessionImpl::isTransmitting(204)] - Exiting
2020-06-28 09:14:08,177 DEBUG [0x00002bdc] [cpve] [CSF.media::rtp::SessionImpl::isTransmitting(204)] - Entering [session_id=0].
2020-06-28 09:14:08,177 DEBUG [0x00002bdc] [cpve] [CSF.media::rtp::SessionImpl::isTransmitting(211)] - Returning true : Session is transmitting. media_type: video, label: main, session_id: 0
2020-06-28 09:14:08,177 DEBUG [0x00002bdc] [cpve] [CSF.media::rtp::SessionImpl::isTransmitting(204)] - Exiting
2020-06-28 09:14:08,177 DEBUG [0x00002bdc] [cpve] [CSF.media::rtp::VideoSessionImpl::populateStatistics(1830)] - Exiting
2020-06-28 09:14:08,177 DEBUG [0x00002bdc] [cpve] [CSF.media::rtp::VideoSessionImpl::getMediaStatisticsWithLock(1804)] - Returning 0x05cc7860 : videoStatistics
2020-06-28 09:14:08,177 DEBUG [0x00002bdc] [cpve] [CSF.media::rtp::VideoSessionImpl::getMediaStatisticsWithLock(1779)] - Exiting
2020-06-28 09:14:08,177 DEBUG [0x00002bdc] [cpve] [CSF.media::rtp::VideoSessionImpl::getMediaStatistics(1772)] - Returning 0x05cc787c : videoStatistics
2020-06-28 09:14:08,177 DEBUG [0x00002bdc] [cpve] [CSF.media::rtp::VideoSessionImpl::getMediaStatistics(1758)] - Exiting

So it is displaying "UNSUPPORTED_RESOLUTION", but the resolution is set to 1280x720 16:9 30fps 60Hz (which I think should be supported). I tried changing the refresh rate to 50Hz. I also tried changing the resolution to 960x540, but neither of those helped. My external webcam (the one that is working correctly), was set to 1920x1080. I set it down to 1280x720 to match the resolution of my internal webcam and it still works correctly in CUVA. So it does appear to work with that resolution...