I.MX6 Dual/Quad Dual 1080p H.264 30fps

[inderjitbains]

Are the I.MX6 Dual/Quad SOCs capable of decoding two 1080p H.264 30fps streams?  The "Fact Sheet" states that the Dual and Quad have two 2D graphics engines.  Does this mean two VPUs, each capable of decoding one 1080p H.264 30fps stream?  Assume DDR3 is 64 bits wide.

[igorpadykov]

Hi Inderjit

i.MX6DQ has one vpu and capable of decoding two 1080p H.264 30fps streams,

details can be found on slide 6 presentation

https://community.freescale.com/docs/DOC-95595

Best regards

igor

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[inderjitbains]

The latest datasheet still has 264 MHz as the highest VPU clock frequency, and slide 6 of the presentation says the VPU has to have a frequency >300MHz.  Is this officially supported?

[igorpadykov]

from p.21 i.MX6DQ Datasheet (rev.4, 7/2015)

http://cache.freescale.com/files/32bit/doc/data_sheet/IMX6DQCEC.pdf

[inderjitbains]

I was looking at the Reference Manual, Table 9-7:

Clock sources and range Core clock: up to 264 MHz

AXI bus clock: up to 264 MHz

IP bus clock: up to 66 MHz

Is the datasheet more accurate?

[igorpadykov]

>datasheet more accurate

yes

[inderjitbains]

Is the Dual Lite capable of decoding two 1080p H.264 30fps streams as well?  The datasheet show that the VPU can go up to 328 MHz (Table 8).

[igorpadykov · Accepted solution]

please check p.6 presentation

Q&A: MX6 VPU H.264 Dual Stream Encode Limits