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DEC6108 video low fps

DEC6108 video low fps

Created: Aug 12, 2019 09:56:47Latest reply: Sep 12, 2021 20:13:45 732 5 0 0 0
  Rewarded HiCoins： 0 (problem resolved)
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Hi Huawei


One of our projects uses the DEC6108 decoder +IVS platform. 

According to the feedback from the customer, when the video source output from the DEC6108 to the video wall is displayed, frame freezing occurs

when 27 720p30 pictures are displayed. Generally, one HDMI interface outputs one picture, four pictures, and nine pictures. If only 24 pictures are output, 

the picture is normal and no frame freezing occurs. 

However, when the number of displayed pictures reaches 27 or more, frame freezing occurs.

DEC 6108 2

DEC6108 1


Please help us solve this problem. Thank you!


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Hike
Created Aug 12, 2019 10:03:09

Hi, Hummer!

This is the specification parameter of the DEC6108.

[tr]Parameter
Description
[/tr]
Decoding capability
Supports the H.264 and H.265 video encoding formats.
The number of live video viewing channels depends on the resolution in case of H.264 and H.265 decoding as follows:
  • D1(25fps) or lower: 256
  • 720P(30fps): 128
  • 1080P(30fps): 64
  • 4K(30fps): 16
Support simultaneous decoding under different resolutions. The total bandwidth cannot exceed 480 Mbit/s.
Display control
Eight HDMI output interfaces.
Each HDMI output interface supports 1-, 4- (default), 8-, 9-, 16-, 25-, or 36-pane.
NOTE:

  • Each odd-numbered port (HDMI1, HDMI3, HDMI5, and HDMI7) supports a maximum of 36 live video channels. Each even-numbered port (HDMI2, HDMI4, HDMI6, and HDMI8) supports a maximum of 32 live video channels.
  • Each group of HDMI1+HDMI2, HDMI3+HDMI4, HDMI5+HDMI6, or HDMI7+HDMI8 shares one decoding chip. Each group of ports shares the output specification of the decoder. For example, each group of ports supports a maximum of 4 4K, 16 1080p, 32 720p, or 64 D1 live video channels.

Generally, 27 720p30 frames do not reach the upper limit of the decoding capability of the DEC6108.

Please confirm whether it is 27 720p30 frames.

In order to check it, the procedure is as follows:

Log in to the server and run the following command: cat/proc/umap/vdec.
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  • convention：
All Answers
(0) (0)
2#
Hike
Hike Created Aug 12, 2019 10:03:09

Hi, Hummer!

This is the specification parameter of the DEC6108.

[tr]Parameter
Description
[/tr]
Decoding capability
Supports the H.264 and H.265 video encoding formats.
The number of live video viewing channels depends on the resolution in case of H.264 and H.265 decoding as follows:
  • D1(25fps) or lower: 256
  • 720P(30fps): 128
  • 1080P(30fps): 64
  • 4K(30fps): 16
Support simultaneous decoding under different resolutions. The total bandwidth cannot exceed 480 Mbit/s.
Display control
Eight HDMI output interfaces.
Each HDMI output interface supports 1-, 4- (default), 8-, 9-, 16-, 25-, or 36-pane.
NOTE:

  • Each odd-numbered port (HDMI1, HDMI3, HDMI5, and HDMI7) supports a maximum of 36 live video channels. Each even-numbered port (HDMI2, HDMI4, HDMI6, and HDMI8) supports a maximum of 32 live video channels.
  • Each group of HDMI1+HDMI2, HDMI3+HDMI4, HDMI5+HDMI6, or HDMI7+HDMI8 shares one decoding chip. Each group of ports shares the output specification of the decoder. For example, each group of ports supports a maximum of 4 4K, 16 1080p, 32 720p, or 64 D1 live video channels.

Generally, 27 720p30 frames do not reach the upper limit of the decoding capability of the DEC6108.

Please confirm whether it is 27 720p30 frames.

In order to check it, the procedure is as follows:

Log in to the server and run the following command: cat/proc/umap/vdec.
View more
  • x
  • convention：
(0) (0)
3#
Hummer
Hummer Created Aug 13, 2019 00:40:25

Thank you for your reply.
According to what you said.
I found there was a camera with 4K resolution.

I batch configured all thecamera resolution to 720p.

Now Confirmed the issue has beensolved.
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Pialex
Pialex Created Sep 2, 2021 12:28:33 (0) (0)
hi, with what program can i use this deco. thx  
Y_T_Z
Y_T_Z Reply Pialex  Created Sep 2, 2021 12:30:55 (0) (0)
Hi, do you see camera resolution? you can set it on the camera webpage.  
(0) (0)
4#
futurework
futurework Created Sep 12, 2021 20:13:45

FFFF
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