X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=time.c;h=6e1d603d2751566f3afa55d518367e162ae1b06b;hp=155e11d86e99dcbdef2535108c5602fa1752efc5;hb=899677b50128e00e58d76d26c05be9f078204c67;hpb=88648fbe815c12e36e48f7d244b274c45366cad1

diff --git a/time.c b/time.c
index 155e11d8..6e1d603d 100644
--- a/time.c
+++ b/time.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2005-2007 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2005-2009 Andre Noll <maan@systemlinux.org>
  *
  * Licensed under the GPL v2. For licencing details see COPYING.
  */
@@ -169,3 +169,23 @@ int tv_convex_combination(const long a, const struct timeval *tv1,
 			ret = -ret;
 	return ret;
 }
+
+/**
+ * Compute when to send a chunk of an audio file.
+ *
+ * \param chunk_num The number of the chunk.
+ * \param chunk_tv The duration of one chunk.
+ * \param stream_start When the first chunk was sent.
+ * \param result The time when to send chunk number \a chunk_num.
+ *
+ * This function computes stream_start + chunk_num * chunk_time.
+ */
+void compute_chunk_time(long unsigned chunk_num,
+		struct timeval *chunk_tv, struct timeval *stream_start,
+		struct timeval *result)
+{
+	struct timeval tmp;
+
+	tv_scale(chunk_num, chunk_tv, &tmp);
+	tv_add(&tmp, stream_start, result);
+}