avcodec/exif: Don't include tiff.h in exif.h

The exif.h header doesn't use anything from tiff.h. We also just need
to include tiff_common.h in .c files where it actually used.
Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

libavcodec/exif.c

@@ -26,6 +26,7 @@
  */
 
 #include "exif.h"
+#include "tiff_common.h"
 
 
 static const char *exif_get_tag_name(uint16_t id)

libavcodec/exif.h

@@ -31,7 +31,6 @@
 #include <stdint.h>
 #include "libavutil/dict.h"
 #include "bytestream.h"
-#include "tiff.h"
 
 #define EXIF_MAX_IFD_RECURSION 2
 #define EXIF_TAG_NAME_LENGTH   32

libavcodec/mjpegdec.c

@@ -50,6 +50,7 @@
 #include "tiff.h"
 #include "exif.h"
 #include "bytestream.h"
+#include "tiff_common.h"
 
 
 static int init_default_huffman_tables(MJpegDecodeContext *s)

libavcodec/webp.c

@@ -49,6 +49,7 @@
 #include "get_bits.h"
 #include "internal.h"
 #include "thread.h"
+#include "tiff_common.h"
 #include "vp8.h"
 
 #define VP8X_FLAG_ANIMATION             0x02