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<span style="font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);">From baff7691e9bc4f93bccc85ae78d95ad9ade7a8d0 Mon Sep 17 00:00:00 2001</span>
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From: Min Chen <chenm003@163.com></div>
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Date: Fri, 14 Mar 2025 22:27:02 -0700</div>
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Subject: [PATCH] Improve Slices option with check zeroMv</div>
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---</div>
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source/encoder/analysis.cpp | 4 ++--</div>
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source/encoder/motion.cpp | 8 ++++++++</div>
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2 files changed, 10 insertions(+), 2 deletions(-)</div>
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<br>
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diff --git a/source/encoder/analysis.cpp b/source/encoder/analysis.cpp</div>
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index 5475e4800..e3c410e59 100644</div>
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--- a/source/encoder/analysis.cpp</div>
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+++ b/source/encoder/analysis.cpp</div>
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@@ -3166,7 +3166,7 @@ void Analysis::checkMerge2Nx2N_rd0_4(Mode& skip, Mode& merge, const CUGeom& cuGe</div>
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}</div>
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for (uint32_t i = 0; i < numMergeCand; ++i)</div>
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{</div>
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- if (m_bFrameParallel)</div>
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+ if (m_bFrameParallel && candMvField[i][0].mv.notZero())</div>
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{</div>
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// Parallel slices bound check</div>
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if (m_param->maxSlices > 1)</div>
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@@ -3300,7 +3300,7 @@ void Analysis::checkMerge2Nx2N_rd5_6(Mode& skip, Mode& merge, const CUGeom& cuGe</div>
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}</div>
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for (uint32_t i = 0; i < numMergeCand; i++)</div>
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{</div>
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- if (m_bFrameParallel)</div>
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+ if (m_bFrameParallel && candMvField[i][0].mv.notZero())</div>
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{</div>
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// Parallel slices bound check</div>
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if (m_param->maxSlices > 1)</div>
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diff --git a/source/encoder/motion.cpp b/source/encoder/motion.cpp</div>
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index 58e943652..86f413c3d 100644</div>
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--- a/source/encoder/motion.cpp</div>
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+++ b/source/encoder/motion.cpp</div>
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@@ -1596,6 +1596,14 @@ me_hex2:</div>
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// check mv range for slice bound</div>
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X265_CHECK(((bmv.y >= qmvmin.y) & (bmv.y <= qmvmax.y)), "mv beyond range!");</div>
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</div>
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+ // Get a chance to ZeroMv</div>
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+ if (bmv.notZero())</div>
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+ {</div>
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+ int cost = subpelCompare(ref, MV(0, 0), satd) + mvcost(MV(0, 0));</div>
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+ if (cost <= bcost)</div>
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+ bmv = MV(0, 0);</div>
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+ }</div>
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+</div>
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x265_emms();</div>
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outQMv = bmv;</div>
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return bcost;</div>
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-- </div>
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2.43.0.windows.1</div>
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