avcodec, avfilter: Don't use "" for system headers

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

libavcodec/qsv.c

@@ -20,6 +20,7 @@
 
 #include <mfxvideo.h>
 #include <mfxjpeg.h>
+#include <mfxvp8.h>
 
 #include <stdio.h>
 #include <string.h>
@@ -39,8 +40,6 @@
 #define QSV_HAVE_USER_PLUGIN    !QSV_ONEVPL
 #define QSV_HAVE_AUDIO          !QSV_ONEVPL
 
-#include "mfxvp8.h"
-
 #if QSV_HAVE_USER_PLUGIN
 #include <mfxplugin.h>
 #endif

libavfilter/avf_aphasemeter.c

@@ -23,6 +23,8 @@
  * audio to video multimedia aphasemeter filter
  */
 
+#include <float.h>
+
 #include "libavutil/channel_layout.h"
 #include "libavutil/intreadwrite.h"
 #include "libavutil/opt.h"
@@ -34,7 +36,6 @@
 #include "audio.h"
 #include "video.h"
 #include "internal.h"
-#include "float.h"
 
 typedef struct AudioPhaseMeterContext {
     const AVClass *class;

libavfilter/f_drawgraph.c

@@ -20,8 +20,6 @@
 
 #include "config_components.h"
 
-#include "float.h"
-
 #include "libavutil/avstring.h"
 #include "libavutil/eval.h"
 #include "libavutil/intreadwrite.h"

libavfilter/f_graphmonitor.c

@@ -20,8 +20,6 @@
 
 #include "config_components.h"
 
-#include "float.h"
-
 #include "libavutil/pixdesc.h"
 #include "libavutil/eval.h"
 #include "libavutil/intreadwrite.h"

libavfilter/vf_lut3d.c

@@ -24,9 +24,9 @@
  * 3D Lookup table filter
  */
 
-#include "config_components.h"
+#include <float.h>
 
-#include "float.h"
+#include "config_components.h"
 
 #include "libavutil/opt.h"
 #include "libavutil/file_open.h"