I’d like to decode H.264 file, convert to RGBA and display it with egl via NVMM. I tried to the following pipeline, but I can’t get the expected result. gst-launch-1.0 filesrc location=testpattern.mp4 ! decodebin ! nvvidconv ! “video/x-raw(memory:NVMM), format=RGBA, colorimetry=(string)bt709, widt…

Hi, So it may have certain issue in rendering on Jetpack 4.4. For a thorough solution, we would suggest upgrade to 4.6.1 or 4.6.2.

Hi, Would like to confirm the issue. Looks like testpattern.mp4 is encoded from YUV420 bt709 and after converting to RGBA, the color range is not correct. Is this correct?

[compare] I checked another testpattern. Its result is attached file. It is different between nvoverlaysink and xvimagesink. I tried cmu_enable and force_user_gamma, but I couldn’t get the same result as xvimagesink.

Hi, Which release version do you use?

I’m using “# R32 (release), REVISION: 4.4, GCID: 23942405, BOARD: t186ref, EABI: aarch64, DATE: Fri Oct 16 19:37:08 UTC 2020”;

Hi, Could you upgrade to Jetpack 4.6.1 and apply this prebuilt lib for a try: Video convert sample results are missing? - #12 by DaneLLL

I checked that I could get the expected result with jetpack 4.6.1. But I’d like to use jetpack 4.4.1 if possible, because I’m using the commercial product and I can’t update its jetpack by myself. Is it possible to provide fixed binary for jetpack 4.4.1 ?

I tried the attached file. But I couldn’t the expected results. I tried it with jetpack 4.6.1 as is again and I could the expected result. So it seems whether the libnvbuf_utils is modified isn’t involved. Do you know which update is effective for this ?

Hi, Please share the way for checking the correctness. So that we can check and confirm.

color_compare.pdf (328.1 KB) I checked this as attached file. I checked this with jetpack 4.6.0 too, but I couldn’t get the expected result. So it seemed that this phenomenon was disappeared since jetpack 4.6.1.

How to set the colorimetry using nvvidconv video/x-raw(memory:NVMM)

Robotics & Edge Computing Jetson Systems Jetson TX2

DaneLLL August 30, 2022, 6:48am 9

Hi,
Please try the attachment.

r32_44_TEST_libnvbuf_utils.zip (15.6 KB)

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How to set the colorimetry using nvvidconv video/x-raw(memory:NVMM)

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