7 files changed, 74 insertions, 3 deletions
diff --git a/modules/plc/plc.c b/modules/plc/plc.c
index 5409258..9f703c1 100644
--- a/modules/plc/plc.c
+++ b/modules/plc/plc.c
@@ -8,6 +8,14 @@
 #include <baresip.h>
 
 
+/**
+ * @defgroup plc plc
+ *
+ * Packet Loss Concealment (PLC) audio-filter using spandsp
+ *
+ */
+
+
 struct plc_st {
 	struct aufilt_dec_st af; /* base class */
 	plc_state_t plc;
diff --git a/modules/rst/rst.c b/modules/rst/rst.c
index cd614f4..8f2fea3 100644
--- a/modules/rst/rst.c
+++ b/modules/rst/rst.c
@@ -11,6 +11,22 @@
 #include "rst.h"
 
 
+/**
+ * @defgroup rst rst
+ *
+ * Audio and video source module using mpg123 as input
+ *
+ * The module 'rst' is using the mpg123 to play streaming
+ * media (MP3) and provide this as an internal audio/video source.
+ *
+ * Example config:
+ \verbatim
+  audio_source        rst,http://relay.slayradio.org:8000/
+  video_source        rst,http://relay.slayradio.org:8000/
+ \endverbatim
+ */
+
+
 enum {
 	RETRY_WAIT = 10000,
 };
diff --git a/modules/sdl/sdl.c b/modules/sdl/sdl.c
index 914a63a..dec95bc 100644
--- a/modules/sdl/sdl.c
+++ b/modules/sdl/sdl.c
@@ -11,6 +11,13 @@
 #include "sdl.h"
 
 
+/**
+ * @defgroup sdl sdl
+ *
+ * Video display using Simple DirectMedia Layer (SDL)
+ */
+
+
 /** Local constants */
 enum {
 	KEY_RELEASE_VAL = 250  /**< Key release value in [ms] */
diff --git a/modules/sdl2/sdl.c b/modules/sdl2/sdl.c
index c79392d..4487e43 100644
--- a/modules/sdl2/sdl.c
+++ b/modules/sdl2/sdl.c
@@ -10,6 +10,13 @@
 #include <baresip.h>
 
 
+/**
+ * @defgroup sdl2 sdl2
+ *
+ * Video display using Simple DirectMedia Layer version 2 (SDL2)
+ */
+
+
 struct vidisp_st {
 	const struct vidisp *vd;        /**< Inheritance (1st)     */
 	SDL_Window *window;             /**< SDL Window            */
diff --git a/modules/selfview/selfview.c b/modules/selfview/selfview.c
index cf5cdc3..77f0b81 100644
--- a/modules/selfview/selfview.c
+++ b/modules/selfview/selfview.c
@@ -9,6 +9,19 @@
 #include <baresip.h>
 
 
+/**
+ * @defgroup selfview selfview
+ *
+ * Show a selfview of the captured video stream
+ *
+ * Example config:
+ \verbatim
+  video_selfview          pip # {window,pip}
+  selfview_size           64x64
+ \endverbatim
+ */
+
+
 /* shared state */
 struct selfview {
 	struct lock *lock;          /**< Protect frame         */
@@ -235,10 +248,9 @@ static struct vidfilt selfview_pip = {
 
 static int module_init(void)
 {
-	struct pl pl;
+	struct pl pl = PL("pip");
 
-	if (conf_get(conf_cur(), "video_selfview", &pl))
-		return 0;
+	(void)conf_get(conf_cur(), "video_selfview", &pl);
 
 	if (0 == pl_strcasecmp(&pl, "window"))
 		vidfilt_register(&selfview_win);
diff --git a/modules/snapshot/snapshot.c b/modules/snapshot/snapshot.c
index d22806e..b71edbd 100644
--- a/modules/snapshot/snapshot.c
+++ b/modules/snapshot/snapshot.c
@@ -10,6 +10,20 @@
 #include "png_vf.h"
 
 
+/**
+ * @defgroup snapshot snapshot
+ *
+ * Take snapshot of the video stream and save it as PNG-files
+ *
+ *
+ * Commands:
+ *
+ \verbatim
+ O       Take video snapshot
+ \endverbatim
+ */
+
+
 static bool flag_enc, flag_dec;
 
 
diff --git a/modules/sndfile/sndfile.c b/modules/sndfile/sndfile.c
index e8fe9c9..667c0b1 100644
--- a/modules/sndfile/sndfile.c
+++ b/modules/sndfile/sndfile.c
@@ -9,6 +9,13 @@
 #include <baresip.h>
 
 
+/**
+ * @defgroup sndfile sndfile
+ *
+ * Audio filter that writes audio samples to WAV-file
+ */
+
+
 struct sndfile_enc {
 	struct aufilt_enc_st af;  /* base class */
 	SNDFILE *enc;