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radv/video: Override H265 SPS block size parameters

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VCN only supports this set of parameters.

Reviewed-by: Ruijing Dong <ruijing.dong@amd.com>
Cc: mesa-stable
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38061>
(cherry picked from commit 84b6d8e0d7)
This commit is contained in:
Benjamin Cheng 2025-10-24 10:18:07 -04:00 • committed by Eric Engestrom
parent c7be5c92a6
commit 376823b022
2 changed files with 10 additions and 6 deletions
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2
.pick_status.json
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@ -794,7 +794,7 @@
"description": "radv/video: Override H265 SPS block size parameters",
"nominated": true,
"nomination_type": 1,
"resolution": 0,
"resolution": 1,
"main_sha": null,
"because_sha": null,
"notes": null

14
src/amd/vulkan/radv_video_enc.c
View file

@ -3050,11 +3050,15 @@ radv_video_patch_encode_session_parameters(struct radv_device *device, struct vk
}
break;
case VK_VIDEO_CODEC_OPERATION_ENCODE_H265_BIT_KHR: {
/*
* AMD firmware requires these flags to be set in h265 with RC modes,
* VCN 3 need 1.27 and VCN 4 needs 1.7 or newer to pass the CTS tests,
* dEQP-VK.video.encode.h265_rc_*.
*/
for (unsigned i = 0; i < params->h265_enc.h265_sps_count; i++) {
/* VCN supports only the following block sizes (resulting in 64x64 CTBs with any coding
* block size) */
params->h265_enc.h265_sps[i].base.log2_min_luma_coding_block_size_minus3 = 0;
params->h265_enc.h265_sps[i].base.log2_diff_max_min_luma_coding_block_size = 3;
params->h265_enc.h265_sps[i].base.log2_min_luma_transform_block_size_minus2 = 0;
params->h265_enc.h265_sps[i].base.log2_diff_max_min_luma_transform_block_size = 3;
}
for (unsigned i = 0; i < params->h265_enc.h265_pps_count; i++) {
params->h265_enc.h265_pps[i].base.flags.cu_qp_delta_enabled_flag = 1;
params->h265_enc.h265_pps[i].base.diff_cu_qp_delta_depth = 0;