doxygen: Prefer member groups over grouping into modules

Before this, almost all module groups have been used for grouping functions
and fields in structures semantically. This causes them to not appear
properly in the file documentation and needlessly clutters up the "Modules"
index.

Additionally, this commit streamlines some spelling and appearances.

1 files changed, 2 insertions, 2 deletions

diff --git a/libavcodec/ac3.h b/libavcodec/ac3.h
index c06f3d542d..9adad93db8 100644
--- a/libavcodec/ac3.h
+++ b/libavcodec/ac3.h
@@ -92,7 +92,7 @@ typedef struct AC3BitAllocParameters {
  * Coded AC-3 header values up to the lfeon element, plus derived values.
  */
 typedef struct {
-    /** @defgroup coded Coded elements
+    /** @name Coded elements
      * @{
      */
     uint16_t sync_word;
@@ -110,7 +110,7 @@ typedef struct {
     int num_blocks;                         ///< number of audio blocks
     /** @} */
 
-    /** @defgroup derived Derived values
+    /** @name Derived values
      * @{
      */
     uint8_t sr_shift;