decklink: Decklink Device Provider wrongly parses SDK strings

Describe your issue

Searching for Decklink devices using gst-device-manager repeatedly returns incorrect or incomplete device information. Apparently, parsing of SDK strings from Decklink SDK fails for certain fields. This causes these fields not to be included in the return value. According to my observations so far, this only affects the fields "model-name" and "display-name". The error only occurs as of GStreamer version 1.22.4. While searching for possible changes in the last commits, I came across the following change which could possibly be the cause of the behavior:

!4786 (merged)

Expected Behavior

Device monitor should parse all relevant strings from the Decklink SDK device information.

Observed Behavior

Device monitor repeatedly returns irregular values and missing fields. With GStreamer 1.22.3 on the same machine everything works as expected. I have observed the same behaviour on other Windows machines with similar software setup as well so it doesn't seems to be linked to a specific machine.

(gst-device-monitor-1.0:12764): GStreamer-WARNING **: 14:51:22.058: Trying to set string on structure field 'display-name', but string is not valid UTF-8. Please file a bug.
(gst-device-monitor-1.0:12764): GStreamer-WARNING **: 14:51:22.073: Trying to set string on structure field 'model-name', but string is not valid UTF-8. Please file a bug.

Setup

Windows 10 Pro 10.0.19045
Blackmagic Decklink Quad 2 / Blackmagic Decklink Duo 2
Decklink SDK 12.7 (older versions produce the same issues!)
GStreamer >= 1.22.4

Steps to reproduce the bug

open terminal
type gst-device-monitor-1.0.exe Video/Source/Hardware

How reproducible is the bug?

The bug is present at least after the first run of the above command, sometimes even on the initial run.

Screenshots if relevant

Solutions you have tried

Using different GStreamer versions with the same hardware/software setup.

Additional Information


gst-device-monitor-1.0.exe Video/Source/Hardware
Probing devices...
(gst-device-monitor-1.0:12764): GStreamer-WARNING **: 14:51:21.964: Trying to set string on structure field 'display-name', but string is not valid UTF-8. Please file a bug.
(gst-device-monitor-1.0:12764): GStreamer-WARNING **: 14:51:21.980: Trying to set string on structure field 'display-name', but string is not valid UTF-8. Please file a bug.
(gst-device-monitor-1.0:12764): GStreamer-WARNING **: 14:51:21.995: Trying to set string on structure field 'display-name', but string is not valid UTF-8. Please file a bug.
(gst-device-monitor-1.0:12764): GStreamer-WARNING **: 14:51:22.011: Trying to set string on structure field 'display-name', but string is not valid UTF-8. Please file a bug.
(gst-device-monitor-1.0:12764): GStreamer-WARNING **: 14:51:22.027: Trying to set string on structure field 'display-name', but string is not valid UTF-8. Please file a bug.
(gst-device-monitor-1.0:12764): GStreamer-WARNING **: 14:51:22.042: Trying to set string on structure field 'display-name', but string is not valid UTF-8. Please file a bug.
(gst-device-monitor-1.0:12764): GStreamer-WARNING **: 14:51:22.042: Trying to set string on structure field 'display-name', but string is not valid UTF-8. Please file a bug.
(gst-device-monitor-1.0:12764): GStreamer-WARNING **: 14:51:22.058: Trying to set string on structure field 'display-name', but string is not valid UTF-8. Please file a bug.
(gst-device-monitor-1.0:12764): GStreamer-WARNING **: 14:51:22.073: Trying to set string on structure field 'model-name', but string is not valid UTF-8. Please file a bug.
(gst-device-monitor-1.0:12764): GStreamer-WARNING **: 14:51:22.073: Trying to set string on structure field 'model-name', but string is not valid UTF-8. Please file a bug.
(gst-device-monitor-1.0:12764): GStreamer-WARNING **: 14:51:22.073: Trying to set string on structure field 'model-name', but string is not valid UTF-8. Please file a bug.
(gst-device-monitor-1.0:12764): GStreamer-WARNING **: 14:51:22.089: Trying to set string on structure field 'model-name', but string is not valid UTF-8. Please file a bug.
(gst-device-monitor-1.0:12764): GStreamer-WARNING **: 14:51:22.105: Trying to set string on structure field 'display-name', but string is not valid UTF-8. Please file a bug.
(gst-device-monitor-1.0:12764): GStreamer-WARNING **: 14:51:22.105: Trying to set string on structure field 'display-name', but string is not valid UTF-8. Please file a bug.
(gst-device-monitor-1.0:12764): GStreamer-WARNING **: 14:51:22.105: Trying to set string on structure field 'display-name', but string is not valid UTF-8. Please file a bug.
(gst-device-monitor-1.0:12764): GStreamer-WARNING **: 14:51:22.105: Trying to set string on structure field 'display-name', but string is not valid UTF-8. Please file a bug.
(gst-device-monitor-1.0:12764): GStreamer-WARNING **: 14:51:22.120: Trying to set string on structure field 'display-name', but string is not valid UTF-8. Please file a bug.
(gst-device-monitor-1.0:12764): GStreamer-WARNING **: 14:51:22.120: Trying to set string on structure field 'display-name', but string is not valid UTF-8. Please file a bug.
(gst-device-monitor-1.0:12764): GStreamer-WARNING **: 14:51:22.136: Trying to set string on structure field 'display-name', but string is not valid UTF-8. Please file a bug.
(gst-device-monitor-1.0:12764): GStreamer-WARNING **: 14:51:22.136: Trying to set string on structure field 'display-name', but string is not valid UTF-8. Please file a bug.
Device found:
[Invalid UTF-8]         name  : DeckLink Quad (1)\xd5\xd0\x91\xf2\x01 (Video Capture)
class : Video/Source/Hardware
caps  : video/x-raw, width=720, height=486, pixel-aspect-ratio=10/11, interlace-mode=interleaved, framerate=30000/1001
video/x-raw, width=720, height=576, pixel-aspect-ratio=12/11, interlace-mode=interleaved, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=24000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=24/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=30000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=30/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=50/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=30000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=30/1
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=50/1
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60000/1001
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60/1
properties:
device-number = 0 (0x00000000)
model-name = DeckLink Quad 2
max-channels = 16 (0x00000010)
supports-format-detection = true
serial-number = 720p600
persistent-id = 3157382448
gst-launch-1.0 decklinkvideosrc persistent-id=3157382448 ! ...
Device found:
[Invalid UTF-8]         name  : DeckLink Quad (2)\x02\xc7\x02\xc8\x02\xc9\x02'\x1as\xcc\x1c (Video Capture)
class : Video/Source/Hardware
caps  : video/x-raw, width=720, height=486, pixel-aspect-ratio=10/11, interlace-mode=interleaved, framerate=30000/1001
video/x-raw, width=720, height=576, pixel-aspect-ratio=12/11, interlace-mode=interleaved, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=24000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=24/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=30000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=30/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=50/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=30000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=30/1
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=50/1
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60000/1001
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60/1
properties:
device-number = 1 (0x00000001)
model-name = DeckLink Quad 2
max-channels = 16 (0x00000010)
supports-format-detection = true
serial-number =
persistent-id = 3157382449
gst-launch-1.0 decklinkvideosrc persistent-id=3157382449 ! ...
Device found:
name  : DeckLink Quad (3) (Video Capture)
class : Video/Source/Hardware
caps  : video/x-raw, width=720, height=486, pixel-aspect-ratio=10/11, interlace-mode=interleaved, framerate=30000/1001
video/x-raw, width=720, height=576, pixel-aspect-ratio=12/11, interlace-mode=interleaved, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=24000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=24/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=30000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=30/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=50/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=30000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=30/1
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=50/1
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60000/1001
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60/1
properties:
device-number = 2 (0x00000002)
model-name = DeckLink Quad 2
display-name = DeckLink Quad (3)
max-channels = 16 (0x00000010)
supports-format-detection = true
serial-number =
persistent-id = 3157382450
gst-launch-1.0 decklinkvideosrc persistent-id=3157382450 ! ...
Device found:
name  : DeckLink Quad (4) (Video Capture)
class : Video/Source/Hardware
caps  : video/x-raw, width=720, height=486, pixel-aspect-ratio=10/11, interlace-mode=interleaved, framerate=30000/1001
video/x-raw, width=720, height=576, pixel-aspect-ratio=12/11, interlace-mode=interleaved, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=24000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=24/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=30000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=30/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=50/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=30000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=30/1
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=50/1
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60000/1001
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60/1
properties:
device-number = 3 (0x00000003)
display-name = DeckLink Quad (4)
max-channels = 16 (0x00000010)
supports-format-detection = true
serial-number =
persistent-id = 3157382451
gst-launch-1.0 decklinkvideosrc persistent-id=3157382451 ! ...
Device found:
[Invalid UTF-8]         name  : DeckLink Quad (5)\x02\xd8\x02\xd9\x02\xda\x02   \x0c\x1as\xdd\x1c (Video Capture)
class : Video/Source/Hardware
caps  : video/x-raw, width=720, height=486, pixel-aspect-ratio=10/11, interlace-mode=interleaved, framerate=30000/1001
video/x-raw, width=720, height=576, pixel-aspect-ratio=12/11, interlace-mode=interleaved, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=24000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=24/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=30000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=30/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=50/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=30000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=30/1
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=50/1
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60000/1001
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60/1
properties:
device-number = 4 (0x00000004)
model-name = DeckLink Quad 2
max-channels = 16 (0x00000010)
supports-format-detection = true
serial-number =
persistent-id = 3157382452
gst-launch-1.0 decklinkvideosrc persistent-id=3157382452 ! ...
Device found:
[Invalid UTF-8]         name  : DeckLink Quad (6)\x02\xb7\x02\xb8\x02\xb9\x02\xd7\xb4ys\xbc- (Video Capture)
class : Video/Source/Hardware
caps  : video/x-raw, width=720, height=486, pixel-aspect-ratio=10/11, interlace-mode=interleaved, framerate=30000/1001
video/x-raw, width=720, height=576, pixel-aspect-ratio=12/11, interlace-mode=interleaved, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=24000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=24/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=30000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=30/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=50/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=30000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=30/1
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=50/1
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60000/1001
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60/1
properties:
device-number = 5 (0x00000005)
model-name = DeckLink Quad 2
max-channels = 16 (0x00000010)
supports-format-detection = true
serial-number =
persistent-id = 3157382453
gst-launch-1.0 decklinkvideosrc persistent-id=3157382453 ! ...
Device found:
name  : DeckLink Quad (7) (Video Capture)
class : Video/Source/Hardware
caps  : video/x-raw, width=720, height=486, pixel-aspect-ratio=10/11, interlace-mode=interleaved, framerate=30000/1001
video/x-raw, width=720, height=576, pixel-aspect-ratio=12/11, interlace-mode=interleaved, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=24000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=24/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=30000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=30/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=50/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=30000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=30/1
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=50/1
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60000/1001
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60/1
properties:
device-number = 6 (0x00000006)
model-name = DeckLink Quad 2
display-name = DeckLink Quad (7)
max-channels = 16 (0x00000010)
supports-format-detection = true
serial-number =
persistent-id = 3157382454
gst-launch-1.0 decklinkvideosrc persistent-id=3157382454 ! ...
Device found:
name  : DeckLink Quad (8)☻o☻p☻q☻&g      st§ (Video Capture)
class : Video/Source/Hardware
caps  : video/x-raw, width=720, height=486, pixel-aspect-ratio=10/11, interlace-mode=interleaved, framerate=30000/1001
video/x-raw, width=720, height=576, pixel-aspect-ratio=12/11, interlace-mode=interleaved, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=24000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=24/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=30000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=30/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=50/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=25/1
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=30000/1001
video/x-raw, width=1920, height=1080, pixel-aspect-ratio=1/1, interlace-mode=interleaved, framerate=30/1
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=50/1
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60000/1001
video/x-raw, width=1280, height=720, pixel-aspect-ratio=1/1, interlace-mode=progressive, framerate=60/1
properties:
device-number = 7 (0x00000007)
model-name = DeckLink Quad 2♥▲♥▼♥ ♥!♥►gcs$
display-name = DeckLink Quad (8)☻o☻p☻q☻&g       st§
max-channels = 16 (0x00000010)
supports-format-detection = true
serial-number =
persistent-id = 3157382455
gst-launch-1.0 decklinkvideosrc persistent-id=3157382455 ! ...

Edited Oct 07, 2023 by Christian Hoffmann

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