Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

How to calculate the required freq for H.264 decoding?

Status
Not open for further replies.
J

johnli100

Member level 1
Joined
Apr 13, 2004
Messages
32
Helped
1
Reputation
2
Reaction score
1
Trophy points
1,288
Activity points
243
I read one paper on the H.264 decoding, and one sentence says: "Using a typical PDA processor, e.g. the Intel PXA270, the required frequency for H.264/AVC decoding for DVB-H is about 420 MHz. (320x240 pixel resolution, 384 kBit/s)"

Can someone tell me how to reach this conclusion? why the required frequency is 420 MHz?

Thanks in advance!
 

I think it's a experiment number.
Just run the software decoder in PDA to get the number.
 

first, your vidoe frame frequency, for example, 30f/s or 15f/s, even 9f/s, then you can get the operation number per second should be done by encoder.

For typical processor, it's throughput is available.

From above two result you can get the required frequency.

This is not experiment number, which will be calculated carefully.
 

matthew_wang said:
first, your vidoe frame frequency, for example, 30f/s or 15f/s, even 9f/s, then you can get the operation number per second should be done by encoder.

For typical processor, it's throughput is available.

From above two result you can get the required frequency.

This is not experiment number, which will be calculated carefully.
Click to expand...

Hi Matthew, for this case, how to do the calculation? can you explaint to me? thx
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top