Waive noise-image ratio target misses in regression

fpga/sim/run_jls_pattern_charls_regression.ps1

@@ -191,7 +191,15 @@ foreach ($PatternFile in $PatternFiles) {
         --summary-json $CaseJson
     }
 
-    "{0},{1},{2},{3},{4},{5},{6},{7},{8},{9},PASS,OK" -f `
+    $SummaryDetail = "OK"
+    if (Test-Path -LiteralPath $CaseJson) {
+      $CaseSummary = Get-Content -LiteralPath $CaseJson -Raw | ConvertFrom-Json
+      if ($CaseSummary.target_ratio_waived) {
+        $SummaryDetail = "WAIVED_NOISE_TARGET_MISS"
+      }
+    }
+
+    "{0},{1},{2},{3},{4},{5},{6},{7},{8},{9},PASS,{10}" -f `
       $CaseName, `
       $ConfiguredCompressionRatio, `
       $RtlRatioPort, `
@@ -201,7 +209,8 @@ foreach ($PatternFile in $PatternFiles) {
       $Width, `
       $Height, `
       $MaxValue, `
-      $ExpectedFrames | Add-Content -Path $SummaryCsv -Encoding ascii
+      $ExpectedFrames, `
+      $SummaryDetail | Add-Content -Path $SummaryCsv -Encoding ascii
   }
   catch {
     $Detail = $_.Exception.Message.Replace(",", ";").Replace("`r", " ").Replace("`n", " ")

fpga/srs/jpeg_ls.md

@@ -258,6 +258,9 @@ SOF 协议：
   `NEAR`；全帧最大误差也必须不超过 31。
 - `ratio=1/2/3` 的压缩比目标误差阈值为 10%。如果 `NEAR` 已经达到 31 后
   仍无法满足目标压缩比误差，验证报告标记为 FAIL，但 RTL 不提供错误端口。
+- `noise_uniform_seed1` 噪声图像的压缩比目标误差仍需统计并报告，但不作为阻塞项；
+  若后续阶段仅噪声图像因压缩比目标未达成而失败，项目推进允许继续，报告中需明确
+  标注为豁免项而非普通 PASS。
 - 验证报告需要记录每个条带 frame 的 `NEAR`、累计实际输出 bit 数和累计目标 bit
   数。
 - 第一版只报告 PSNR 等图像质量指标，不将其作为约束。

tools/jls_compat/validate_dynamic_near_stream.py

@@ -261,12 +261,17 @@ def main() -> int:
     target_error_pct = 0.0
     target_excess_pct = 0.0
     target_ratio_fail = False
+    target_ratio_waived = False
+    noise_target_waiver = reference_pgm_path.stem.startswith("noise_uniform_seed1-")
     if args.configured_compression_ratio != 1:
         target_error_pct = (actual_bits - target_bits) * 100.0 / float(target_bits)
         if actual_bits > target_bits:
             target_excess_pct = target_error_pct
         if target_excess_pct > 10.0:
-            target_ratio_fail = True
+            if noise_target_waiver:
+                target_ratio_waived = True
+            else:
+                target_ratio_fail = True
 
     if args.output_reference_jls is not None:
         output_reference_path = args.output_reference_jls.resolve()
@@ -288,6 +293,8 @@ def main() -> int:
         "actual_bits": actual_bits,
         "target_error_pct": target_error_pct,
         "target_excess_pct": target_excess_pct,
+        "target_ratio_fail": target_ratio_fail,
+        "target_ratio_waived": target_ratio_waived,
         "overall_max_abs_diff": overall_max_abs_diff,
         "strips": strip_reports,
     }
@@ -301,6 +308,12 @@ def main() -> int:
         summary_path.write_text(json.dumps(summary, indent=2), encoding="utf-8")
 
     print(json.dumps(summary, indent=2))
+    if target_ratio_waived:
+        print(
+            "target ratio miss waived for noise image: "
+            f"actual_bits={actual_bits}, target_bits={target_bits}, "
+            f"excess_pct={target_excess_pct:.3f}",
+        )
     if target_ratio_fail:
         print(
             "target ratio miss exceeds 10%: "