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gefei-liuqi
Adventurer
Adventurer
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Registered: ‎10-21-2018

How to improve VCU decode Capability?

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Hello, I have a mxf file while the video is h264-encoded.

The video is 505Mb/s, 3840x2160, 50fps AVC(High 4:2:2 Intra@L5.2).

I use gstreamer to decode: gst-launch-1.0 filesrc location=4K_demo.mxf ! mxfdemux ! h264parse ! omxh264dec internal-entropy-buffers=10 ! videoconvert ! kmssink bus-id="a0070000.v_mix"

It lost many frames.

Can the VCU  decode those high bitrate? How to improve the VCU decode capability?

My board is ZCU106, with MPSoC-VCU-TRD-2019.2. Thanks!

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watari
Professor
Professor
290 Views
Registered: ‎06-16-2013

Hi @gefei-liuqi 

 

You should set proper QoS parameters and add prefetch_buffer=treu on your gstreamer pipeline.

Refer the followings if you want to know details.

 

https://www.xilinx.com/support/documentation/ip_documentation/vcu/v1_2/pg252-vcu.pdf#page=160

https://www.xilinx.com/support/documentation/ip_documentation/vcu/v1_2/pg252-vcu.pdf#page=170

 

Best regards,

 

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1 Reply
watari
Professor
Professor
291 Views
Registered: ‎06-16-2013

Hi @gefei-liuqi 

 

You should set proper QoS parameters and add prefetch_buffer=treu on your gstreamer pipeline.

Refer the followings if you want to know details.

 

https://www.xilinx.com/support/documentation/ip_documentation/vcu/v1_2/pg252-vcu.pdf#page=160

https://www.xilinx.com/support/documentation/ip_documentation/vcu/v1_2/pg252-vcu.pdf#page=170

 

Best regards,

 

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