From b86871241b3b9685063adab7f131a9dd3ef5404c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Adri=C3=A0=20Arrufat?=
 <1671644+arrufat@users.noreply.github.com>
Date: Fri, 19 May 2023 12:02:46 +0900
Subject: [PATCH] Remove unneeded using namespace std (#2799)

---
 dlib/media/ffmpeg_demuxer.h | 3 ---
 dlib/media/ffmpeg_muxer.h   | 4 ----
 2 files changed, 7 deletions(-)

diff --git a/dlib/media/ffmpeg_demuxer.h b/dlib/media/ffmpeg_demuxer.h
index 7a55d0f29..ca317fec4 100644
--- a/dlib/media/ffmpeg_demuxer.h
+++ b/dlib/media/ffmpeg_demuxer.h
@@ -1070,7 +1070,6 @@ namespace dlib
             Callback&&      clb
         )
         {
-            using namespace std;
             using namespace details;
 
             if (!is_open())
@@ -1233,7 +1232,6 @@ namespace dlib
 
         inline bool demuxer::open(const args& a)
         {
-            using namespace std;
             using namespace std::chrono;
             using namespace details;
 
@@ -1442,7 +1440,6 @@ namespace dlib
 
         inline bool demuxer::fill_queue()
         {
-            using namespace std;
             using namespace details;
 
             if (!st.frame_queue.empty())
diff --git a/dlib/media/ffmpeg_muxer.h b/dlib/media/ffmpeg_muxer.h
index 8d5af3e17..7ce5b6d83 100644
--- a/dlib/media/ffmpeg_muxer.h
+++ b/dlib/media/ffmpeg_muxer.h
@@ -836,7 +836,6 @@ namespace dlib
 
         inline bool encoder::open()
         {
-            using namespace std;
             using namespace details;
 
             register_ffmpeg();
@@ -1141,7 +1140,6 @@ namespace dlib
 
         inline bool muxer::open(const args& a)
         {
-            using namespace std;
             using namespace std::chrono;
             using namespace details;
 
@@ -1308,7 +1306,6 @@ namespace dlib
 
         inline bool muxer::push(frame f)
         {
-            using namespace std;
             using namespace details;
 
             if (!is_open())
@@ -1339,7 +1336,6 @@ namespace dlib
         >
         bool muxer::push(const image_type& img)
         {
-            using namespace std;
             using namespace details;
 
             return is_open() &&