Our scenario is using H.264 encoder to encode multiple channelvideo, but the performance isdisappointing because of high cpu loading. The following is our testresult andanyone's assistance will be appreciated.
Our test machine:
OS: Windows XP SP3
CPU: Intel Dual Core E5200 (2.5 GHZ)
When using IPP to encode raw CIF (320x240) video frame into H.264, our tests results are:
Channel Count, Frame/second/channel, CPU utilization
4 , 30 fps , 60%
8 , 15 fps , 95%
12 , 10 fps , 100%
We use one H264VideoEncoder object to encode one channel.As the result, the maximum channels is only 12, Does it correspond the benchmark of Intel IPP?
Paul did indeed answer you perfectly.
You may consider a newer processor with hyper threading (more hardware threads per core), and turbo boost (smart processing load balancing among processors cores). These are 2 key features dramatically increases processing power, and are already available with Core i7 for example.
Also, there is an option that would take you some work; if you could employ the GPU to do the encoding functionality, you will have a completely different performance, you may consider OpenMax for such solution.