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lu-zero / bmdtools

Basic capture and play programs for Blackmagic Design Decklink
Boost Software License 1.0
198 stars 74 forks source link

Delay 2s with bmdplay #67

Closed khachung closed 8 years ago

khachung commented 8 years ago

Hi,

I have Blackmagic Intensity Pro 4K on a server run Debian Jessie. I tried to capture and play on TV with bmdcapture and bmdplay. I used this command: ./bmdcapture -C 0 -m 7 -n 1500 -F nut -f pipe:1 | ./bmdplay -C 0 -m 7 -f pipe:0 Video shown on TV but was delayed 2s. How can I play real-time video?

Thanks,

lu-zero commented 8 years ago 
-b <num>             Milliseconds of pre-buffering before playback (default = 2000 ms)

You need to tune this option.

I hope it helps =)

khachung commented 8 years ago

It works fine. Awesome. Thank you very much! Now I also want to store recorded video with this command: ./bmdcapture -C 0 -m 7 -n 1500 -F nut -f pipe:1 | tee > test.avi | ./bmdplay -C 0 -m 7 -f pipe:0 Because I want to add trademark to video so I changed your bmdcapture. However, video shown on TV have no trademark as stored video.

lu-zero commented 8 years ago

You can use avconv to add it.

khachung commented 8 years ago

Hi Luca,

Thanks for the reply. But what I want is to get the data from the bmdcapture for 2 pipe line: recording and streaming. I used a tee, but failed. Can you show me how to handle it or let me know if I use the wrong tee command. Thank you very much.

2015-11-30 1:59 GMT+07:00 Luca Barbato notifications@github.com:

Closed #67 https://github.com/lu-zero/bmdtools/issues/67.

— Reply to this email directly or view it on GitHub https://github.com/lu-zero/bmdtools/issues/67#event-477144951.