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PENDING: media: iris: update VSP frequency calculation - #1936

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qualcomm-linux:tech/mm/videofrom
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@venvenk

@venvenk venvenk commented Sep 29, 2026

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Update the VSP frequency calculation to use codec-specific reference frequencies and reference bitrates instead of the existing fixed divide-by-two scaling.

Add codec-to-reference mapping logic and use reference bitrates for AVC, HEVC, VP9 and AV1 to derive the VSP vote based on the input bitrate. The calculated frequency is further adjusted using the existing firmware/software offset and VSP firmware overhead factors.

This change aligns VSP frequency voting with codec-specific throughput requirements and provides a more accurate estimate than the previous generic scaling approach.

CRs-fixed: 4653264

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Dev Completion validation failed

CR: 4653264
Change Task: kernel.qli.0.0
Error: GenAI Assisted field must be set before moving change tasks to Development Complete. Please provide GenAI information.

The change task for this CR could not be moved to Dev Complete because of the error above. Please resolve the issue in Orbit and re-run the failed Orbit check.

@qcomlnxci
qcomlnxci requested review from a team, dikshita-agarwal and vgarodia and removed request for a team September 29, 2026 13:00
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Dev Completion validation failed

CR: 4653264
Change Task: kernel.qli.0.0
Error: GenAI Assisted field must be set before moving change tasks to Development Complete. Please provide GenAI information.

The change task for this CR could not be moved to Dev Complete because of the error above. Please resolve the issue in Orbit and re-run the failed Orbit check.

@qcomlnxci
qcomlnxci requested a review from a team September 30, 2026 05:55
Update the VSP frequency calculation to use codec-specific
reference frequencies and reference bitrates instead of the
existing fixed divide-by-two scaling.

Add codec-to-reference mapping logic and use reference
bitrates for AVC, HEVC, VP9 and AV1 to derive the VSP vote
based on the input bitrate. The calculated frequency is
further adjusted using the existing firmware/software offset
and VSP firmware overhead factors.

This change aligns VSP frequency voting with codec-specific
throughput requirements and provides a more accurate estimate
than the previous generic scaling approach.

Signed-off-by: Venkata Siva Pavan KumarVenkatapatigari <venvenk@qti.qualcomm.com>
Signed-off-by: Nagesh Jamakhandi <njamakha@qti.qualcomm.com>
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