From 54def1ba556e85f82e27484209dd5c85f5cde3ea Mon Sep 17 00:00:00 2001
From: cbwu <504-wuchengbo@htsdfp.com>
Date: Wed, 18 Sep 2024 15:36:01 +0800
Subject: [PATCH] =?UTF-8?q?perf:=20=E6=8B=89=E6=B5=81=E8=A7=86=E9=A2=91?=
 =?UTF-8?q?=E6=98=BE=E7=A4=BA=E7=94=BB=E8=B4=A8=E4=BC=98=E5=8C=96?=
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---
 Src/Video/cffmpeg_decode.cpp | 3 ---
 Src/Video/ffmpegvideodlg.cpp | 5 ++++-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/Src/Video/cffmpeg_decode.cpp b/Src/Video/cffmpeg_decode.cpp
index e782825..ebd601a 100644
--- a/Src/Video/cffmpeg_decode.cpp
+++ b/Src/Video/cffmpeg_decode.cpp
@@ -145,9 +145,6 @@ bool Cffmpeg_decode::open_input_file() {
                           decoderCtx->height,  //
                           AV_PIX_FMT_RGB32,    //
                           SWS_BICUBIC, NULL, NULL, NULL);
-  // 颜色空间调整（可选）
-  // sws_setColorspaceDetails(swsCtx, sws_getCoefficients(SWS_CS_DEFAULT), 0,
-  //                          sws_getCoefficients(SWS_CS_DEFAULT), 0, 0, 0, 0);
   numBytes = av_image_get_buffer_size(AV_PIX_FMT_RGB32,   //
                                       decoderCtx->width,  //
                                       decoderCtx->height, //
diff --git a/Src/Video/ffmpegvideodlg.cpp b/Src/Video/ffmpegvideodlg.cpp
index dfcee90..c6dce82 100644
--- a/Src/Video/ffmpegvideodlg.cpp
+++ b/Src/Video/ffmpegvideodlg.cpp
@@ -77,6 +77,8 @@ void ffmpegvideoDlg::stop() {
 // 绘图事件
 void ffmpegvideoDlg::paintEvent(QPaintEvent *) {
   QPainter painter(this);
+  // 开启抗锯齿
+  painter.setRenderHint(QPainter::Antialiasing, true);
   painter.drawImage(m_ax, m_ay, img);
 }
 
@@ -105,7 +107,8 @@ void ffmpegvideoDlg::receiveQImage(const QImage &rImg) {
 
   // img = rImg.scaled(this->size());
   QSize imgsize(m_setVideoAreaWidth, m_setVideoAreaHeight);
-  img = rImg.scaled(imgsize);
+  // 使用平滑缩放模式来减少图像模糊
+  img = rImg.scaled(imgsize, Qt::KeepAspectRatio, Qt::SmoothTransformation);
   update();
 }
 // 显示不同提示消息