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iter18 α-22 TEST: skip DECODE_PARAMS to isolate validation failure

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If removing DECODE_PARAMS from libva's S_EXT_CTRLS batch lets the other
4 controls stage, rkvdec_hevc_run printk will show w=1280 h=720 etc.
That confirms DECODE_PARAMS specifically is failing kernel validation
and rolling back the whole batch.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
claude-noether
2026-05-14 08:59:33 +00:00
parent 0dbe1732f6
commit 5a6eb4351d
1 changed files with 10 additions and 0 deletions
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src/h265.c
+10
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@@ -635,11 +635,21 @@ int h265_set_controls(struct request_data *driver_data,
.ptr = &scaling_matrix, .ptr = &scaling_matrix,
.size = sizeof(scaling_matrix), .size = sizeof(scaling_matrix),
}; };
/*
* iter18 α-22 TEST: skip DECODE_PARAMS submission.
* error_idx=4 from S_EXT_CTRLS showed DECODE_PARAMS fails validation.
* If removing it from the batch lets SPS/PPS/SLICE/SCALING_MATRIX
* stage correctly, the bug is isolated to DECODE_PARAMS validation.
*/
#if 0
controls[n++] = (struct v4l2_ext_control){ controls[n++] = (struct v4l2_ext_control){
.id = V4L2_CID_STATELESS_HEVC_DECODE_PARAMS, .id = V4L2_CID_STATELESS_HEVC_DECODE_PARAMS,
.ptr = &decode_params, .ptr = &decode_params,
.size = sizeof(decode_params), .size = sizeof(decode_params),
}; };
#else
(void)decode_params;
#endif
rc = v4l2_set_controls(driver_data->video_fd, rc = v4l2_set_controls(driver_data->video_fd,
surface_object->request_fd, surface_object->request_fd,