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charset=\"US-ASCII\"; x-default=true","Subject":"[libcamera-devel] [PATCH v2 2/3] ipa: ipu3: af: Trigger AF after\n\tAGC is stable","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","From":"Kate Hsuan via libcamera-devel ","Reply-To":"Kate Hsuan ","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "},"content":"AGC stable status is used to determine that AF is triggered or paused.\nIf AGC is ready, AF can start to evaluate the lens position.\n\nSigned-off-by: Kate Hsuan\n---\n src/ipa/ipu3/algorithms/af.cpp | 12 ++++++++++++\n src/ipa/ipu3/algorithms/af.h | 2 ++\n 2 files changed, 14 insertions(+)","diff":"diff --git a/src/ipa/ipu3/algorithms/af.cpp b/src/ipa/ipu3/algorithms/af.cpp\nindex f700b01f..8cabd064 100644\n--- a/src/ipa/ipu3/algorithms/af.cpp\n+++ b/src/ipa/ipu3/algorithms/af.cpp\n@@ -403,6 +403,16 @@ bool Af::afIsOutOfFocus(IPAContext context)\n \t\treturn false;\n }\n \n+void Af::pause(IPAContext &context)\n+{\n+\tcontext.frameContext.af.focus = focus_;\n+}\n+\n+bool Af::isAgcStable(IPAContext context)\n+{\n+\treturn context.frameContext.agc.stable;\n+}\n+\n /**\n * \\brief Determine the max contrast image and lens position.\n * \\param[in] context The IPA context.\n@@ -421,6 +431,8 @@ bool Af::afIsOutOfFocus(IPAContext context)\n */\n void Af::process(IPAContext &context, const ipu3_uapi_stats_3a *stats)\n {\n+\tif (!isAgcStable(context))\n+\t\tpause(context);\n \t/* Evaluate the AF buffer length */\n \tuint32_t afRawBufferLen = context.configuration.af.afGrid.width *\n \t\t\t\t context.configuration.af.afGrid.height;\ndiff --git a/src/ipa/ipu3/algorithms/af.h b/src/ipa/ipu3/algorithms/af.h\nindex b85cf941..c1c9d39e 100644\n--- a/src/ipa/ipu3/algorithms/af.h\n+++ b/src/ipa/ipu3/algorithms/af.h\n@@ -44,6 +44,8 @@ private:\n \tdouble afEstimateVariance(Span y_items, bool isY1);\n \n \tbool afIsOutOfFocus(IPAContext context);\n+\tbool isAgcStable(IPAContext context);\n+\tvoid pause(IPAContext &context);\n \n \t/* VCM step configuration. It is the current setting of the VCM step. */\n \tuint32_t focus_;\n","prefixes":["libcamera-devel","v2","2/3"]}