Fix a few @file doxy inconsistencies.

libavcodec/diracdec.c

@@ -21,7 +21,7 @@
  */
 
 /**
- * @file libavcodec/diracdec.c
+ * @file
  * Dirac Decoder
  * @author Marco Gerards <marco@gnu.org>, David Conrad, Jordi Ortiz <nenjordi@gmail.com>
  */

libavcodec/exr.c

@@ -20,7 +20,7 @@
  */
 
 /**
- * @file libavcodec/exr.c
+ * @file
  * OpenEXR decoder
  * @author Jimmy Christensen
  *

libavcodec/png_parser.c

@@ -20,7 +20,7 @@
  */
 
 /**
- * @file libavcodec/png_parser.c
+ * @file
  * PNG parser
  */
 

libavcodec/proresenc_anatoliy.c

@@ -21,7 +21,8 @@
  */
 
 /**
- * @file libavcodec/proresenc.c
+ * @file
+ * Apple ProRes encoder (Anatoliy Wasserman version)
  * Known FOURCCs: 'apch' (HQ), 'apcn' (SD), 'apcs' (LT), 'acpo' (Proxy)
  */
 

libavfilter/vf_removelogo.c

@@ -20,7 +20,8 @@
  */
 
 /**
- * @file advanced blur-based logo removing filter
+ * @file
+ * Advanced blur-based logo removing filter
  *
  * This filter loads an image mask file showing where a logo is and
  * uses a blur transform to remove the logo.