- Posts: 13
- Joined: Fri Aug 18, 2017 8:10 am
Hello !
I'm trying to capture RGB video (even 422 is complicated in fact...) with my Intensity Pro 4K but, it seems complicated.... as I always have a black video at the end.
It seems that FFmpeg can't reach the yuv444 pin of the Intensity Pro 4K and uses the yuv422 instead. And... at the end the video is black.
I am using the latest FFmpeg compiled with the --enable-decklink tag, and of course everything works fine with Media Express. All my Blackmagic drivers are up-to-date (10.9.5)
I tried the exact same command line with another capture card (Intensity Shuttle) and it works fine.
Does anyone ever experienced this behaviour with RGB/444 capture in FFmpeg ? Thank you for your help !
Here is the kind of command line I am using :
Ok with my Intensity Shuttle for 422 10 bits capture : ffmpeg.exe -f decklink -bm_v210 1 -format_code "hp60" -i "Intensity Shuttle" -r 60 -vcodec copy -acodec copy output.avi
Gives me a black screen with my Intensity Pro 4K : ffmpeg.exe -f decklink -bm_v210 1 -format_code "hp60" -i "Intensity Pro 4K" -r 60 -vcodec copy -acodec copy output.avi
Of course what I want is RGB/444 capture with my Intensity Pro 4K (at least yuv422...).
Thank you for your help !
I'm trying to capture RGB video (even 422 is complicated in fact...) with my Intensity Pro 4K but, it seems complicated.... as I always have a black video at the end.
It seems that FFmpeg can't reach the yuv444 pin of the Intensity Pro 4K and uses the yuv422 instead. And... at the end the video is black.
I am using the latest FFmpeg compiled with the --enable-decklink tag, and of course everything works fine with Media Express. All my Blackmagic drivers are up-to-date (10.9.5)
I tried the exact same command line with another capture card (Intensity Shuttle) and it works fine.
Does anyone ever experienced this behaviour with RGB/444 capture in FFmpeg ? Thank you for your help !
Here is the kind of command line I am using :
Ok with my Intensity Shuttle for 422 10 bits capture : ffmpeg.exe -f decklink -bm_v210 1 -format_code "hp60" -i "Intensity Shuttle" -r 60 -vcodec copy -acodec copy output.avi
Gives me a black screen with my Intensity Pro 4K : ffmpeg.exe -f decklink -bm_v210 1 -format_code "hp60" -i "Intensity Pro 4K" -r 60 -vcodec copy -acodec copy output.avi
Of course what I want is RGB/444 capture with my Intensity Pro 4K (at least yuv422...).
Thank you for your help !