No SDI video output in 2160p50/60

General
,
1

Hi guys!
I’m using a newly built CasparCG 2.2.0 (stabile) on Windows, using a Decklink 8K Pro. I need to output 2160p50/60, but unfortunately, there’s no SDI output from the Decklink card. I’ve been trying the formats up to 2160p50 without any problem with SDI outputs as well, but the 50 fps and 60 fps won’t do.

When looking into the console, there’s an error regarding the Decklink card as shown below:

[2019-12-13 13:13:30.702] [info]    Initializing OpenGL Device.
[2019-12-13 13:13:30.706] [info]    Initialized OpenGL 4.5.0 NVIDIA 441.66 NVIDIA Corporation
[2019-12-13 13:13:30.728] [info]    Initialized OpenGL Accelerated GPU Image Mixer for channel 1
[2019-12-13 13:13:30.729] [info]    video_channel[1|2160p5000] Successfully Initialized.
[2019-12-13 13:13:30.748] [info]    DeckLink 8K Pro [1-1|2160p5000] Enabled embedded-audio.
[2019-12-13 13:13:30.748] [info]    DeckLink 8K Pro [1-1|2160p5000] Disabled low-latency mode.
[2019-12-13 13:13:30.748] [error]   DeckLink 8K Pro [1-1|2160p5000] Failed to enable external keyer.
[2019-12-13 13:13:30.752] [error]   DeckLink 8K Pro [1-1|2160p5000] Failed to schedule fill video.
[2019-12-13 13:13:30.757] [error]   DeckLink 8K Pro [1-1|2160p5000] Failed to schedule fill video.
[2019-12-13 13:13:30.759] [error]   DeckLink 8K Pro [1-1|2160p5000] Failed to schedule fill video.
[2019-12-13 13:13:30.761] [error]   DeckLink 8K Pro [1-1|2160p5000] Failed to schedule fill video.
[2019-12-13 13:13:30.764] [error]   DeckLink 8K Pro [1-1|2160p5000] Failed to schedule fill video.
[2019-12-13 13:13:30.764] [info]    DeckLink 8K Pro [1-1|2160p5000] Initialized.
[2019-12-13 13:13:30.764] [info]    Initialized channels.
[2019-12-13 13:13:30.766] [info]    Initialized controllers.
[2019-12-13 13:13:30.766] [info]    Initialized osc.

I’ve also activated a screen consumer, but there’s no output as well on these formats.

The system is using Windows 10 Pro N with a Nvidia GTX 970, using CasparCG 2.2.0.

Anyone having any thoughts why this is happening?

Thanks in advance!

2

No idea, but have you tried with the nightly, “unstable” builds? Sometimes they work better…

3

Hi! Actually not. Where can I find these?

4

You find them under builds.casparcg.com

5

Could you please post your config here?

6

Hi!
Current running config:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <paths>
    <media-path>media/</media-path>
    <log-path>log/</log-path>
    <data-path>data/</data-path>
    <template-path>template/</template-path>
    <font-path>font/</font-path>
  </paths>
  <lock-clear-phrase>secret</lock-clear-phrase>
  <channels>
    <channel>
      <video-mode>2160p5000</video-mode>
      <consumers>
            <decklink>
                <device>1</device>
                <embedded-audio>true</embedded-audio>
                <latency>normal</latency>
                <key-only>false</key-only>
                <buffer-depth>3</buffer-depth>
            </decklink>
      </consumers>
    </channel>
    <channel>
      <video-mode>2160p2500</video-mode>
      <consumers>
            <decklink>
                <device>2</device>
                <embedded-audio>true</embedded-audio>
                <latency>normal</latency>
                <key-only>false</key-only>
                <buffer-depth>3</buffer-depth>
            </decklink>
      </consumers>
    </channel>
    <channel>
      <video-mode>1080p5000</video-mode>
      <consumers>
            <decklink>
                <device>3</device>
                <embedded-audio>true</embedded-audio>
                <latency>normal</latency>
                <key-only>false</key-only>
                <buffer-depth>3</buffer-depth>
            </decklink>
      </consumers>
    </channel>
    <channel>
      <video-mode>1080i5000</video-mode>
      <consumers>
            <decklink>
                <device>4</device>
                <embedded-audio>true</embedded-audio>
                <latency>normal</latency>
                <key-only>false</key-only>
                <buffer-depth>3</buffer-depth>
            </decklink>
      </consumers>
    </channel>
  </channels>
  <controllers>
    <tcp>
      <port>5250</port>
      <protocol>AMCP</protocol>
    </tcp>
  </controllers>
  <amcp>
    <media-server>
      <host>localhost</host>
      <port>8000</port>
    </media-server>
  </amcp>
</configuration>

All channels except for the first one is running well.

Thanks in advance!

PS: We’ve tried using Davinci Resolve with 2160p50 on the SDI channels without any problems. The Decklink card itself seems to work.

7

It is because Decklink 8k pro only supports YUV in 2160p5000 when connectors are configured this way :

  • 1 In or Out
  • 2 In or Out
  • 3 In or Out
  • 4 In or Out
    And in CasparCG , Decklink Consumer send frames in BGRA .

Try this configration for 8K pro:

  • SDI 1 In , SDI 2 Out
  • SDI 3 In, SDI 4 Out