i965 driver consumes much larger size to I-frame comparing to iHD driver

intel / intel-vaapi-driver

VA-API user mode driver for Intel GEN Graphics family

https://01.org/linuxmedia

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i965 driver consumes much larger size to I-frame comparing to iHD driver #519

Open rosetta-jpn opened 4 years ago

rosetta-jpn commented 4 years ago

When I tried encoding 4k stream by chrome, the size of the first I-frame is 761949Bytes with i965 driver, but 115114 bytes with iHD driver. What differences come from? Can we reduce the size to the I-frame?

sreerenjb commented 4 years ago

@rosetta-jpn If you can provide the stream and other details from the chrome bug report (size variation ,quality drop etc), that would be great.

xhaihao commented 4 years ago

if possible, could you please provide the tracer log?