Remove unnecessary libavutil/(avutil|common|internal).h inclusions

Some of these were made possible by moving several common macros to
libavutil/macros.h.

While just at it, also improve the other headers a bit.

Reviewed-by: Martin Storsjö <martin@martin.st>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

libavfilter/af_afir.h

@@ -21,15 +21,14 @@
 #ifndef AVFILTER_AFIR_H
 #define AVFILTER_AFIR_H
 
-#include "libavutil/tx.h"
-#include "libavutil/common.h"
-#include "libavutil/float_dsp.h"
-#include "libavutil/opt.h"
+#include <stddef.h>
+#include <stdint.h>
 
-#include "audio.h"
-#include "avfilter.h"
-#include "formats.h"
-#include "internal.h"
+#include "libavutil/tx.h"
+#include "libavutil/float_dsp.h"
+#include "libavutil/frame.h"
+#include "libavutil/log.h"
+#include "libavutil/rational.h"
 
 typedef struct AudioFIRSegment {
     int nb_partitions;

libavfilter/af_volume.h

@@ -24,10 +24,10 @@
 #ifndef AVFILTER_VOLUME_H
 #define AVFILTER_VOLUME_H
 
-#include "libavutil/common.h"
+#include <stdint.h>
 #include "libavutil/eval.h"
 #include "libavutil/float_dsp.h"
-#include "libavutil/opt.h"
+#include "libavutil/log.h"
 #include "libavutil/samplefmt.h"
 
 enum PrecisionType {

libavfilter/avfiltergraph.c

@@ -25,11 +25,9 @@
 #include <string.h>
 
 #include "libavutil/avassert.h"
-#include "libavutil/avstring.h"
 #include "libavutil/bprint.h"
 #include "libavutil/channel_layout.h"
 #include "libavutil/imgutils.h"
-#include "libavutil/internal.h"
 #include "libavutil/opt.h"
 #include "libavutil/pixdesc.h"
 

libavfilter/colorspace.h

@@ -20,8 +20,8 @@
 #ifndef AVFILTER_COLORSPACE_H
 #define AVFILTER_COLORSPACE_H
 
-#include "libavutil/common.h"
 #include "libavutil/frame.h"
+#include "libavutil/pixfmt.h"
 
 #define REFERENCE_WHITE 100.0f
 

libavfilter/ebur128.c

@@ -47,7 +47,8 @@
 #include <limits.h>
 #include <math.h>               /* You may have to define _USE_MATH_DEFINES if you use MSVC */
 
-#include "libavutil/common.h"
+#include "libavutil/error.h"
+#include "libavutil/macros.h"
 #include "libavutil/mem.h"
 #include "libavutil/mem_internal.h"
 #include "libavutil/thread.h"

libavfilter/motion_estimation.c

@@ -18,6 +18,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+#include "libavutil/common.h"
 #include "motion_estimation.h"
 
 static const int8_t sqr1[8][2]  = {{ 0,-1}, { 0, 1}, {-1, 0}, { 1, 0}, {-1,-1}, {-1, 1}, { 1,-1}, { 1, 1}};

libavfilter/motion_estimation.h

@@ -21,7 +21,7 @@
 #ifndef AVFILTER_MOTION_ESTIMATION_H
 #define AVFILTER_MOTION_ESTIMATION_H
 
-#include "libavutil/avutil.h"
+#include <stdint.h>
 
 #define AV_ME_METHOD_ESA        1
 #define AV_ME_METHOD_TSS        2

libavfilter/pthread.c

@@ -21,11 +21,11 @@
  * Libavfilter multithreading support
  */
 
-#include "config.h"
+#include <stddef.h>
 
-#include "libavutil/common.h"
+#include "libavutil/error.h"
+#include "libavutil/macros.h"
 #include "libavutil/mem.h"
-#include "libavutil/thread.h"
 #include "libavutil/slicethread.h"
 
 #include "avfilter.h"