Use the advertised header size in .au files instead of just assuming they

are 24 bytes (the minimum).

(closes issue #13450)
Reported by: jamessan
Patches:
      pcm-header.diff uploaded by jamessan (license 246)


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@143903 65c4cc65-6c06-0410-ace0-fbb531ad65f3

formats/format_pcm.c

@@ -284,9 +284,10 @@ static int check_header(FILE *f)
 	if (magic != (uint32_t) AU_MAGIC) {
 		ast_log(LOG_WARNING, "Bad magic: 0x%x\n", magic);
 	}
-/*	hdr_size = ltohl(header[AU_HDR_HDR_SIZE_OFF]);
-	if (hdr_size < AU_HEADER_SIZE)*/
-	hdr_size = AU_HEADER_SIZE;
+	hdr_size = ltohl(header[AU_HDR_HDR_SIZE_OFF]);
+	if (hdr_size < AU_HEADER_SIZE) {
+		hdr_size = AU_HEADER_SIZE;
+	}
 /*	data_size = ltohl(header[AU_HDR_DATA_SIZE_OFF]); */
 	encoding = ltohl(header[AU_HDR_ENCODING_OFF]);
 	if (encoding != AU_ENC_8BIT_ULAW) {