Fix wav format (bug #3837)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@5233 65c4cc65-6c06-0410-ace0-fbb531ad65f3

formats/format_wav_gsm.c

@@ -55,7 +55,6 @@ struct ast_filestream {
 	   weird MS format */
 	/* This is what a filestream means to us */
 	int fd; /* Descriptor */
-	int bytes;
 	struct ast_frame fr;				/* Frame information */
 	char waste[AST_FRIENDLY_OFFSET];	/* Buffer for sending frames, etc */
 	char empty;							/* Empty character */
@@ -402,7 +401,7 @@ static void wav_close(struct ast_filestream *s)
 	ast_mutex_unlock(&wav_lock);
 	ast_update_use_count();
 	/* Pad to even length */
-	if (s->bytes & 0x1)
+	if (lseek(s->fd, 0, SEEK_END) & 0x1)
 		write(s->fd, &zero, 1);
 	close(s->fd);
 	free(s);
@@ -462,7 +461,6 @@ static int wav_write(struct ast_filestream *fs, struct ast_frame *f)
 				ast_log(LOG_WARNING, "Bad write (%d/65): %s\n", res, strerror(errno));
 				return -1;
 			}
-			fs->bytes += 65;
 			update_header(fs->fd);
 			len += 65;
 		} else {
@@ -473,7 +471,6 @@ static int wav_write(struct ast_filestream *fs, struct ast_frame *f)
 					ast_log(LOG_WARNING, "Bad write (%d/65): %s\n", res, strerror(errno));
 					return -1;
 				}
-				fs->bytes += 65;
 				update_header(fs->fd);
 			} else {
 				/* Copy the data and do nothing */