X-Git-Url: http://git.tuebingen.mpg.de/?a=blobdiff_plain;f=afh_common.c;fp=afh_common.c;h=75d8b5118db91586d46f339fff0d1d1f693dfc07;hb=234647bb5139513bdf36c1afec46f5c43ba27adc;hp=dfbf75132f4e4372eb0b4c95bff8ef25793dc545;hpb=fb3cb0d3ae8ef392024c6e9598b2a59bf92f2277;p=paraslash.git

diff --git a/afh_common.c b/afh_common.c
index dfbf7513..75d8b511 100644
--- a/afh_common.c
+++ b/afh_common.c
@@ -374,6 +374,7 @@ unsigned afh_get_afhi_txt(int audio_format_num, struct afh_info *afhi, char **re
 		"%s: %" PRIu32 "\n" /* seconds total */
 		"%s: %lu: %lu\n" /* chunk time */
 		"%s: %" PRIu32 "\n" /* num chunks */
+		"%s: %" PRIu32 "\n" /* max chunk size */
 		"%s: %s\n" /* techinfo */
 		"%s: %s\n" /* artist */
 		"%s: %s\n" /* title */
@@ -388,6 +389,7 @@ unsigned afh_get_afhi_txt(int audio_format_num, struct afh_info *afhi, char **re
 		status_item_list[SI_CHUNK_TIME], (long unsigned)afhi->chunk_tv.tv_sec,
 			(long unsigned)afhi->chunk_tv.tv_usec,
 		status_item_list[SI_NUM_CHUNKS], afhi->chunks_total,
+		status_item_list[SI_MAX_CHUNK_SIZE], afhi->max_chunk_size,
 		status_item_list[SI_TECHINFO], afhi->techinfo? afhi->techinfo : "",
 		status_item_list[SI_ARTIST], afhi->tags.artist? afhi->tags.artist : "",
 		status_item_list[SI_TITLE], afhi->tags.title? afhi->tags.title : "",
@@ -397,6 +399,37 @@ unsigned afh_get_afhi_txt(int audio_format_num, struct afh_info *afhi, char **re
 	);
 }
 
+/**
+ * Determine the maximal chunk size by investigating the chunk table.
+ *
+ * \param afhi Value/result.
+ *
+ * This function iterates over the chunk table and sets ->max_chunk_size
+ * accordingly. The function exists only for backward compatibility since as of
+ * version 0.6.0, para_server stores the maximal chunk size in its database.
+ * This function is only called if the database value is zero, indicating that
+ * the file was added by an older server version.
+ */
+void set_max_chunk_size(struct afh_info *afhi)
+{
+	uint32_t n, max = 0, old = 0;
+
+	for (n = 0; n <= afhi->chunks_total; n++) {
+		uint32_t val = afhi->chunk_table[n];
+		/*
+		 * If the first chunk is the header, do not consider it for the
+		 * calculation of the largest chunk size.
+		 */
+		if (n == 0 || (n == 1 && afhi->header_len > 0)) {
+			old = val;
+			continue;
+		}
+		max = PARA_MAX(max, val - old);
+		old = val;
+	}
+	afhi->max_chunk_size = max;
+}
+
 /**
  * Create a copy of the given file with altered meta tags.
  *