X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=vss.h;h=9bdc449c0a2a8617b70d06bb1df50272b7761a40;hp=f92fc8091cf7ce852d1e2fc97b462566c4199566;hb=8ea8abb73199b32fdd7afdf8825afa42ed8de244;hpb=9d9ef4f91346188baaef1656b861151ea23437d9

diff --git a/vss.h b/vss.h
index f92fc809..9bdc449c 100644
--- a/vss.h
+++ b/vss.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2005-2008 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2005-2009 Andre Noll <maan@systemlinux.org>
  *
  * Licensed under the GPL v2. For licencing details see COPYING.
  */
@@ -23,5 +23,33 @@ const char *supported_audio_formats(void);
 #define VSS_REPOS 4
 /** Currently playing. */
 #define VSS_PLAYING 8
-/** A client requested to change the audio file selector. */
-#define VSS_CHANGE 16
+
+/**
+ * Each paraslash sender may register arbitrary many clients to the virtual
+ * streaming system, possibly with varying fec parameters. In order to do so,
+ * it must allocate a \a fec_client_parms structure and pass it to \ref
+ * add_fec_client.
+ *
+ * Clients are automatically removed from that list by the vss if an error
+ * occurs, or if the sender requests deletion of a client by calling \ref
+ * vss_del_fec_client().
+ */
+struct fec_client;
+
+/** FEC parameters requested by FEC clients. */
+struct fec_client_parms {
+	/** Number of data slices plus redundant slices. */
+	uint8_t slices_per_group;
+	/** Number of slices minus number of redundant slices. */
+	uint8_t data_slices_per_group;
+	/** Maximal number of bytes per slice. */
+	uint16_t max_slice_bytes;
+	/** Called by vss.c when the next slice should be sent. */
+	int (*send)(char *buf, size_t num_bytes, void *private_data);
+	/** Passed verbatim to \a send(). */
+	void *private_data;
+};
+
+int vss_add_fec_client(struct fec_client_parms *fcp, struct fec_client **result);
+void vss_del_fec_client(struct fec_client *fc);
+size_t vss_get_fec_eof_packet(const char **buf);