X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=afh.h;h=ffccce95fbb12720d40e5549e60781bc6c5e7fe4;hp=b4de774ad4f74de087d3d65cb78cf8a890ebef9f;hb=2bb9fcbfa99cf30a6f46ba33fd95c0a456a225cc;hpb=880818ccab1a9223399194926dfa33b509d8bc12;ds=sidebyside

diff --git a/afh.h b/afh.h
index b4de774a..ffccce95 100644
--- a/afh.h
+++ b/afh.h
@@ -23,14 +23,11 @@
 
 /** \endcond */
 
-/** size of the  audio_file info string */
+/** Size of the audio_file info string. */
 #define AUDIO_FILE_INFO_SIZE 256
 
-/**
- * Audio format dependent information. Details vary between each audio format
- * handler.
- */
-struct audio_format_info {
+/** Audio format dependent information. */
+struct afh_info {
 	/** The number of chunks this audio file contains. */
 	long unsigned chunks_total;
 	/** The length of the audio file in seconds. */
@@ -41,11 +38,16 @@ struct audio_format_info {
   	 * The table that specifies the offset of the individual pieces in
   	 * the current audio file.
  	 */
-	size_t *chunk_table;
+	uint32_t *chunk_table;
 	/** Period of time between sending data chunks. */
 	struct timeval chunk_tv;
 	/** End of file timeout - Do not load new audio file until this time. */
 	struct timeval eof_tv;
+	/**
+	 * The position of the header within the audio file. Ignored if \a
+	 * header_len equals zero.
+	 */
+	uint32_t header_offset;
 	/**
 	 * The header is needed by senders in case a new client connects in the
 	 * middle of the stream. The length of the header defaults to zero
@@ -53,15 +55,10 @@ struct audio_format_info {
 	 * treatment. The audio format handler does not need to set this to
 	 * zero in this case.
    	 */
-	unsigned header_len;
-	/**
-	 * The position of the header within the audio file. Ignored if \a
-	 * header_len equals zero.
-	 */
-	unsigned header_offset;
+	uint32_t header_len;
 	/** The number of channels. */
 	uint8_t channels;
-	/** Frquency on Hz. */
+	/** Frequency in Hz. */
 	uint16_t frequency;
 	/** Exact meaning depends on audio format. */
 	uint16_t bitrate;
@@ -93,11 +90,16 @@ struct audio_format_handler {
 	 * valid for this audio format. A negative return value indicates that
 	 * 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.
+	 * given struct afh_info.
 	 *
-	 * \sa struct audio_format_info
+	 * \sa struct afh_info
 	 */
 	int (*get_file_info)(char *map, size_t numbytes,
-		struct audio_format_info *afi);
+		struct afh_info *afi);
 };
 
+void afh_init(void);
+int guess_audio_format(const char *name);
+int compute_afhi(const char *path, char *data, size_t size,
+	struct afh_info *afhi);
+const char *audio_format_name(int);