Jetson Tx2 Omxh264dec Fast-Forwarding 1080p Stream Black Frames

[Osman Berk]

Hello;

I use omxh264enc , for encoding, I do encode two 576p cameras and one 1080p
camera. While recording, I try to stream 1080p footage at x4 however the
stream is not smooth, there are black frames inside the video around %50 of
the time.

What is the problem?  

The problem does not occur with avdec_h264, is it about omxh264dec? Is there
a way to solve it while staying on gpu decoding?



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[Nicolas Dufresne-5]

Le ven. 19 juill. 2019 10 h 25, Osman Berk <[hidden email]> a écrit :

Hello;

I use omxh264enc , for encoding, I do encode two 576p cameras and one 1080p
camera. While recording, I try to stream 1080p footage at x4 however the
stream is not smooth, there are black frames inside the video around %50 of
the time.

What is the problem? 

The problem does not occur with avdec_h264, is it about omxh264dec? Is there
a way to solve it while staying on gpu decoding?

Even under pressure, a decoder should never produce black frames. You should report this to Nvidia, we (the GStreamer community) cannot fix that since this falls in the closed source part of the Jetson SDK.

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[Osman Berk]

Thank you, it seems Nvidia plans to not depreciate the omx elements. They
won't have it in the next release, they say.



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[Nicolas Dufresne-5]

Le samedi 20 juillet 2019 à 00:54 -0500, Osman Berk a écrit :
> Thank you, it seems Nvidia plans to not depreciate the omx elements. They
> won't have it in the next release, they say.

I know they have brewed a V4L2 driver recently, they haven't published
any code of that driver (which has to be GPL of course), but on our
side it means that the community will be in better situation to support
you since the GStreamer element will then be shared across a wide
variety of boards (RPi, Amlogic, Qualcomm, IMX, Exynos, and so on).

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