afh.h: Minor documentation improvements.

diff --git a/afh.h b/afh.h
index 73c02c128565f9d03fe216dd4732a75877f5f5a1..8c0c15cfb007e25a6639220b848fc8934ca1ec79 100644 (file)
--- a/afh.h
+++ b/afh.h
@@ -32,21 +32,25 @@
 /** size of the  audio_file info string */
 #define AUDIO_FILE_INFO_SIZE 16384
 
+/**
+ * Audio format dependent information. Details vary between each audio format
+ * handler.
+ */
 struct audio_format_info {
-       /** the number of chunks this audio file contains */
+       /** The number of chunks this audio file contains. */
        long unsigned chunks_total;
-       /** the length of the audio file in seconds */
+       /** The length of the audio file in seconds. */
        long unsigned seconds_total;
-       /** a string that gets filled in by the audio format handler */
+       /** A string that gets filled in by the audio format handler. */
        char info_string[AUDIO_FILE_INFO_SIZE];
        /**
-        * the table that specifies the offset of the individual pieces in
+        * The table that specifies the offset of the individual pieces in
         * the current audio file.
         */
        size_t *chunk_table;
-       /** period of time between sending data chunks */
+       /** Period of time between sending data chunks. */
        struct timeval chunk_tv;
-       /** end of file timeout - do not load new audio file until this time */
+       /** End of file timeout - Do not load new audio file until this time. */
        struct timeval eof_tv;
        /**
         * The header is needed by senders in case a new client connects in the
@@ -61,45 +65,44 @@ struct audio_format_info {
         * header_len equals zero.
         */
        unsigned header_offset;
+       /** The number of channels. */
        uint8_t channels;
+       /** Frquency on Hz. */
        uint16_t frequency;
+       /** Exact meaning depends on audio format. */
        uint16_t bitrate;
 };
 
 /**
- * structure for audio format handling
+ *  Structure for audio format handling.
  *
- * There's exactly one such struct for each supported audio format. Initially,
- * only \a name and \a init are defined. During the startup process,
- * para_server calls the \a init function of each audio format handler which is
- * expected to fill in all the other function pointers.
+ *  There's one such struct for each supported audio format. Initially, only \a
+ *  name and \a init are defined. During the startup process, para_server calls
+ *  the \a init function of each audio format handler which is expected to fill
+ *  in the other part of this struct.
  */
 struct audio_format_handler {
-       /**
-        * name of the audio format
-        */
+       /** Name of the audio format. */
        const char *name;
        /**
-        * typical file endings for files that can be handled by this afh.
-        */
-       const char **suffixes;
-       /**
-        * pointer to the audio format handler's init function
+        * Pointer to the audio format handler's init function.
         *
         * Must initialize all function pointers and is assumed to succeed.
         */
        void (*init)(struct audio_format_handler*);
+       /** Typical file endings for files that can be handled by this afh. */
+       const char **suffixes;
        /**
-        * check if this audio format handler can handle the file
+        * Check if this audio format handler can handle the file.
         *
         * This is a  pointer to a function returning whether a given file is
         * valid for this audio format. A negative return value indicates that
-        * this audio format handler did not recognize the given file. On
+        * this audio format handler is unable to decode the given file. On
         * success, the function must return a positive value and fill in the
         * given struct audio_format_info.
         *
         * \sa struct audio_format_info
-       */
+        */
        int (*get_file_info)(char *map, size_t numbytes,
                struct audio_format_info *afi);
 };