search

raspberrypi / userland

Source code for ARM side libraries for interfacing to Raspberry Pi GPU.
BSD 3-Clause "New" or "Revised" License
2.05k stars 1.09k forks source link

Introducing latency to preview mode #600

Closed PhilippeDuvivier closed 4 years ago

PhilippeDuvivier commented 4 years ago

Hi, Great stuff this raspivid. I am trying to use it together with an AUVIDEA B101 HDMI input board in order to create a simple parametric HDMI video delayer with a PI, ie to display the input HDMI on the output with Nx100ms delay. One option would be to introduce this as a parameter to the preview mode. Does that make sense at all? Thanks

JamesH65 commented 4 years ago

It would be possible. Probably best to continue any discussion on the forum - this tracker is for bug reports rather than tech help.

6by9 commented 4 years ago

As per the message that is displayed every time you run raspivid with a B101 or other TC358743 based HDMI capture board

The driver for the TC358743 HDMI to CSI2 chip you are using is NOT supported. They were written for a demo purposes only, and are in the firmware on an as-is basis and therefore requests for support or changes will not be acted on.

The TC358743 is supported via V4L2 and works via things such as GStreamer. Use dtoverlay=tc358743 should load up the appropriate drivers, although you will need to add the i2c_pins_28_29=1 parameter if you're on Pi B+, 2, 0, and 0W. Using the GStreamer queue component and associated min-threshold-time parameter should be able to deliver what you want. Further support on the use of that should be done on the forum, not here.

PhilippeDuvivier commented 4 years ago

Thanks for this answer I have created a Topic in the forum, please support me there :-) https://www.raspberrypi.org/forums/viewtopic.php?f=43&t=258529 Cheers Philippe

Philippe Duvivier Co-founder & CTO +33 6 95 13 24 42 odiho - Sound On Demand philippe.duvivier@odiho.com www.odiho.com

Le 4 déc. 2019 à 12:45, 6by9 notifications@github.com a écrit :

As per the message that is displayed every time you run raspivid with a B101 or other TC358743 based HDMI capture board

The driver for the TC358743 HDMI to CSI2 chip you are using is NOT supported. They were written for a demo purposes only, and are in the firmware on an as-is basis and therefore requests for support or changes will not be acted on.

The TC358743 is supported via V4L2 and works via things such as GStreamer. Use dtoverlay=tc358743 should load up the appropriate drivers, although you will need to add the i2c_pins_28_29=1 parameter if you're on Pi B+, 2, 0, and 0W. Using the GStreamer queue component and associated min-threshold-time parameter should be able to deliver what you want. Further support on the use of that should be done on the forum, not here.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/raspberrypi/userland/issues/600?email_source=notifications&email_token=AJVQJV2OFPBQVUEI2DQSBWTQW6J4PA5CNFSM4JVFG5G2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEF4XQTQ#issuecomment-561608782, or unsubscribe https://github.com/notifications/unsubscribe-auth/AJVQJVZG7GCH3IQLB4JLWNTQW6J4PANCNFSM4JVFG5GQ.