H.265 support has improved significantly since its introduction several years ago, with most cameras now supporting the codec. However, there are still challenges impacting H.265's competitiveness and compatibility, which have kept it from replacing H.264 in the mainstream.
In this report, IPVM examines these issues, including:
H.264 vs H.265 Technical Comparisons
Impacts On Quality
Barriers in Moving to H.265
Camera/VMS Compatibility Improvements
VMS Support Reviewed
ONVIF Conformance Delays
H.265 vs Smart H.264
H.265 Smart Codecs
H.265 IPVM Test Results
H.265 CPU Load Impact
Patent Licensing Issues
Overall, the key marketing claims for HEVC/H.265 is reducing bit rate requirements in half to deliver the same quality. For instance, if a 1080p / 30fps H.264 camera required 4Mb/s, the equivalent H.265 camera would be expected to require only 2Mb/s. But that is now, clearly not enough, as we will explain inside.