RT1176 .264 video playback

liangtaotongxue — Mon, 11 Jul 2022 03:10:36 GMT

We use RT1176 to play video in .264 format, and the maximum frame rate for 720p playback is 4Hz. I learned that RT1060 plays 720p with a maximum frame rate of 4Hz, but RT1060 only has 600M main frequency, while RT1176 has 1G main frequency, so I think RT1176 The frame rate of 720p video in .264 format should be greater than 4Hz.

1. Is my conclusion that the 4Hz frame rate is correct, or is my operation wrong?
2. Is it possible that I want to play 720p video at 15Hz frame rate?

Re: RT1176 .264 video playback

jingpan — Thu, 14 Jul 2022 09:33:20 GMT

HI @liangtaotongxue ,

You can refer to this demo https://github.com/JayHeng/RT-Mp4Player

The performance is as below with the flexram_sdram settings.

	*Dest LCD resolution 1280720 800MHz RGB888**
Src Video	Dec Audio	Dec Video	PXP Conv	CPU loading (25fps)
480*240	0.84	19.589	15.011	51.07%
480*272	0.835	22.168	15.255	57.22%
960*540	0.836	88.633	23.117	100%
1280*720	0.864	143.701ms	24.136ms	100%

So, maybe you can lift the framerate by more optimization. But it seems it's really hard to get 15pfs at 1GHz.

Regards,

Jing

topic RT1176 .264 video playback in i.MX Processors

RT1176 .264 video playback

Re: RT1176 .264 video playback