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Difference between revisions of "News/H.264 Plus vs. H.264"

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==H.264+ Smart Codec vs H.264==
 
==H.264+ Smart Codec vs H.264==
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Here are my finding, attached are the graphs and metrics I have taken:
 
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Storage (using SD card file size):
 
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Comparison Smart Codec vs No Smart Codec:
 
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Still:
 
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60.42% Decreased file size
 
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Movement:
 
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21.10% Decreased file size
 
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Network (using solar winds on SNMP):
 
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Comparison Smart Codec vs No Smart Codec:
 
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Still:
 
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40% Decreased stream throughput
 
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Movement (using LPR wheel):
 
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16.84% Decreased stream
 
  
 
===Observation===
 
===Observation===

Revision as of 18:06, 29 August 2016

H.264+ Smart Codec vs H.264

Observation

  • How much bandwidth does Dahua's new H.264+ Smart Codec save compared to H.264?
  • What are the shortcomings, if any, to using H.264+ Smart Codec?
  • What equipment is required to take advantage of H.264+ Smart Codec?

Hypothesis

H.264+ Smart Codec will be more efficient than H.264. I expect a reduction of 20-50% in bandwidth over H.264.

Experiment

Setup

  • Storage: Video files were stored on the Micro-SD card of the camera, and these are averages of several 8 minute recordings. This experiment was conducted by recording under these video conditions:

Settings.png

  • Network: The use of Solar Winds Real-Time bandwidth monitor was used to track network traffic of the camera over SNMPv2 protocol to monitor data passed through the devices Ethernet port. Two devices were viewing the main from the device and the total was averaged.
  • Still Scene: a scene where there were no moving objects or lighting changes.
  • Moving Scene: a spinning wheel used for LPR was run that occupied approximately 1/15.5 of the screen.

500x500px

Storage
H.264 Plus codec on: H.264 Plus codec off:
Still Scene: 16158 KB Still Scene: 40822 KB
Moving Scene: 37351 KB Moving Scene: 47338 KB


Network Traffic
H.264 Plus codec on: H.264 Plus codec off:
Still Scene: 180 Kbps per stream Still Scene: 300 Kbps per stream
Moving Scene: 790 Kbps per stream Moving Scene: 950 Kbps per stream

Theory

Prediction

Evaluation from Community

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