From 35a05922216ecc680972cab1ffebdfe192bf05e9 Mon Sep 17 00:00:00 2001
From: Martin Pulec <pulec@cesnet.cz>
Date: Mon, 24 Feb 2014 13:48:51 +0100
Subject: [PATCH] main.c -> main.cpp

---
 configure.ac              |  2 +-
 src/audio/audio.h         | 17 +++++++----------
 src/audio/audio_capture.h |  9 +++++++++
 src/ihdtv.h               |  8 ++++++++
 src/{main.c => main.cpp}  | 17 ++++++++---------
 src/pdb.h                 |  8 ++++++++
 src/rtp/pbuf.h            |  7 +++++++
 src/rtp/rtp.h             |  9 +++++++++
 src/rtp/rtp_callback.h    |  8 ++++++++
 src/sender.h              |  8 ++++++++
 src/stats.cpp             |  2 +-
 src/stats.h               |  2 +-
 src/tfrc.h                |  8 ++++++++
 src/transmit.h            |  8 ++++++++
 src/utils/misc.h          |  8 ++++++++
 15 files changed, 99 insertions(+), 22 deletions(-)
 rename src/{main.c => main.cpp} (99%)

diff --git a/configure.ac b/configure.ac
index 1b9096e7b..c712a70d4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,7 +3,7 @@ dnl Process this file with autoconf to produce a configure script.
 AC_INIT([UltraGrid], [1.2], [ultragrid-dev@cesnet.cz])
 AM_INIT_AUTOMAKE([1.10])
 AC_PREREQ(2.61)
-AC_CONFIG_SRCDIR([src/main.c])
+AC_CONFIG_SRCDIR([src/main.cpp])
 AC_CONFIG_MACRO_DIR([m4])
 
 PARENT=`echo $PWD | sed -e 's%/[[^/]]*$%%'`
diff --git a/src/audio/audio.h b/src/audio/audio.h
index 0fdeb76d4..aac5c585c 100644
--- a/src/audio/audio.h
+++ b/src/audio/audio.h
@@ -55,6 +55,10 @@
 #include "config_win32.h"
 #endif // HAVE_CONFIG_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define PORT_AUDIO              5006
 
 #define MAX_AUDIO_CHANNELS      8
@@ -142,16 +146,9 @@ int audio_reconfigure(struct state_audio *s, int quant_samples, int channels,
 
 unsigned int audio_get_display_flags(struct state_audio *s);
 
-/**
- * Changes bps for everey sample.
- * 
- * The memory areas shouldn't (supposedly) overlap.
- */
-void change_bps(char *out, int out_bps, const char *in, int in_bps, int in_len /* bytes */);
+#ifdef __cplusplus
+}
+#endif
 
-/**
- * Makes n copies of first channel (interleaved).
- */
-void audio_frame_multiply_channel(struct audio_frame *frame, int new_channel_count);
 
 #endif
diff --git a/src/audio/audio_capture.h b/src/audio/audio_capture.h
index 68fe8d26d..2afe16de4 100644
--- a/src/audio/audio_capture.h
+++ b/src/audio/audio_capture.h
@@ -44,6 +44,10 @@
  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 struct state_audio_capture;
 struct audio_frame;
 
@@ -69,5 +73,10 @@ const char                 *audio_capture_get_driver_name(struct state_audio_cap
  * SDI (embedded sound).
  */
 void                       *audio_capture_get_state_pointer(struct state_audio_capture *s);
+
+#ifdef __cplusplus
+}
+#endif
+
 /* vim: set expandtab: sw=4 */
 
diff --git a/src/ihdtv.h b/src/ihdtv.h
index 98775a2c8..6a2c50e4e 100644
--- a/src/ihdtv.h
+++ b/src/ihdtv.h
@@ -62,6 +62,10 @@
 #include "video_capture.h"
 #include "video_display.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 struct ihdtv_state;
 struct video_frame;
 struct rx_tx;
@@ -71,5 +75,9 @@ extern struct rx_tx ihdtv_rxtx;
 struct ihdtv_state *initialize_ihdtv(struct vidcap *capture_device, struct display *display_device,
                 int requested_mtu, int argc, char **argv);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif // IHDTV_H_
 
diff --git a/src/main.c b/src/main.cpp
similarity index 99%
rename from src/main.c
rename to src/main.cpp
index 103ce181a..f0c2c1efa 100644
--- a/src/main.c
+++ b/src/main.cpp
@@ -409,7 +409,7 @@ static struct rtp **initialize_network(const char *addrs, int recv_port_base,
 
 		devices[index] = rtp_init_if(addr, mcast_if, recv_port,
                                 send_port, ttl, rtcp_bw, FALSE,
-                                rtp_recv_callback, (void *)participants,
+                                rtp_recv_callback, (uint8_t *)participants,
                                 use_ipv6);
 		if (devices[index] != NULL) {
 			rtp_set_option(devices[index], RTP_OPT_WEAK_VALIDATION,
@@ -455,7 +455,7 @@ void destroy_rtp_devices(struct rtp ** network_devices)
 }
 
 static struct vcodec_state *new_video_decoder(struct state_uv *uv) {
-        struct vcodec_state *state = calloc(1, sizeof(struct vcodec_state));
+        struct vcodec_state *state = (struct vcodec_state *) calloc(1, sizeof(struct vcodec_state));
 
         if(state) {
                 state->decoder = video_decoder_init(&uv->receiver_mod, uv->decoder_mode,
@@ -476,7 +476,7 @@ static struct vcodec_state *new_video_decoder(struct state_uv *uv) {
 }
 
 static void destroy_video_decoder(void *state) {
-        struct vcodec_state *video_decoder_state = state;
+        struct vcodec_state *video_decoder_state = (struct vcodec_state *) state;
 
         if(!video_decoder_state) {
                 return;
@@ -650,7 +650,7 @@ void *ultragrid_rtp_receiver_thread(void *arg)
                                 ((struct vcodec_state*) cp->decoder_state)->display = uv->display_device;
                         }
 
-                        struct vcodec_state *vdecoder_state = cp->decoder_state;
+                        struct vcodec_state *vdecoder_state = (struct vcodec_state *) cp->decoder_state;
 
                         /* Decode and render video... */
                         if (pbuf_decode
@@ -749,6 +749,7 @@ static void *capture_thread(void *arg)
         struct module *uv_mod = (struct module *)arg;
         struct state_uv *uv = (struct state_uv *) uv_mod->priv_data;
         struct sender_data sender_data;
+        struct wait_obj *wait_obj;
         memset(&sender_data, 0, sizeof(sender_data));
 
         struct compress_state *compression = NULL;
@@ -772,10 +773,7 @@ static void *capture_thread(void *arg)
         sender_data.video_exporter = uv->video_exporter;
         sender_data.compression = compression;
 
-        // The magic here with wait_objs is a workaround until all capture
-        // drivers implement a dispose function. Until that, it is supposed
-        // that every vidcap_grab call invalidates previous captured frame.
-        struct wait_obj *wait_obj = wait_obj_init();
+        wait_obj = wait_obj_init();
 
         if(!sender_init(&sender_data)) {
                 fprintf(stderr, "Error initializing sender.\n");
@@ -922,6 +920,7 @@ int main(int argc, char *argv[])
         unsigned display_flags = 0;
         int compressed_audio_sample_rate = 48000;
         int ret;
+        struct vidcap_params *audio_cap_dev;
 
 #if defined DEBUG && defined HAVE_LINUX
         mtrace();
@@ -1347,7 +1346,7 @@ int main(int argc, char *argv[])
 
         /* Pass embedded/analog/AESEBU flags to selected vidcap
          * device. */
-        struct vidcap_params *audio_cap_dev = vidcap_params_get_nth(
+        audio_cap_dev = vidcap_params_get_nth(
                         vidcap_params_head,
                         audio_capture_get_vidcap_index(audio_send));
         if (audio_cap_dev != NULL) {
diff --git a/src/pdb.h b/src/pdb.h
index 79b25999a..771ffd920 100644
--- a/src/pdb.h
+++ b/src/pdb.h
@@ -51,6 +51,10 @@
  * $Date: 2009/12/11 15:29:39 $
  *
  */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
  
 /*
  * A participant database entry. This holds (pointers to) all the
@@ -100,3 +104,7 @@ struct pdb_e        *pdb_iter_init(struct pdb *db, pdb_iter_t *it);
 struct pdb_e        *pdb_iter_next(pdb_iter_t *it);
 void                 pdb_iter_done(pdb_iter_t *it);
 
+#ifdef __cplusplus
+}
+#endif
+
diff --git a/src/rtp/pbuf.h b/src/rtp/pbuf.h
index 89c861ecc..e1dd37a48 100644
--- a/src/rtp/pbuf.h
+++ b/src/rtp/pbuf.h
@@ -68,6 +68,10 @@
 #include "audio/audio.h"
 #include "utils/list.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* The coded representation of a single frame */
 struct coded_data {
         struct coded_data       *nxt;
@@ -116,4 +120,7 @@ void		 pbuf_remove(struct pbuf *playout_buf, struct timeval curr_time);
 void		 pbuf_set_playout_delay(struct pbuf *playout_buf, double playout_delay,
                 double deletion_delay);
 
+#ifdef __cplusplus
+}
+#endif
 
diff --git a/src/rtp/rtp.h b/src/rtp/rtp.h
index fd94f6499..9bc05e6d7 100644
--- a/src/rtp/rtp.h
+++ b/src/rtp/rtp.h
@@ -46,6 +46,10 @@
 #include "config_win32.h"
 #endif // HAVE_CONFIG_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define RTP_VERSION 2
 #define RTP_PACKET_HEADER_SIZE	((sizeof(char *) * 2) + sizeof(uint32_t *) + (2 * sizeof(int)))
 #define RTP_MAX_PACKET_LEN 9000
@@ -286,4 +290,9 @@ void             rtp_flush_recv_buf(struct rtp *session);
 int              rtp_change_dest(struct rtp *session, const char *addr);
 uint64_t         rtp_get_bytes_sent(struct rtp *session);
 int              rtp_compute_fract_lost(struct rtp *session, uint32_t ssrc);
+
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __RTP_H__ */
diff --git a/src/rtp/rtp_callback.h b/src/rtp/rtp_callback.h
index 10147a2d5..3b65d7abb 100644
--- a/src/rtp/rtp_callback.h
+++ b/src/rtp/rtp_callback.h
@@ -40,6 +40,10 @@
  *
  */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /** @page av_pkt_description UltraGrid packet format
  * Packet formats are described in papers referenced here:<br/>
  * https://www.sitola.cz/igrid/index.php/Developer_Documentation#Packet_formats
@@ -143,3 +147,7 @@ int check_for_frame_completion(struct rtp *);
 void process_packet_for_display(char *);
 void call_display_frame(void);
 
+#ifdef __cplusplus
+}
+#endif
+
diff --git a/src/sender.h b/src/sender.h
index bc8e5ebe4..fba7e2116 100644
--- a/src/sender.h
+++ b/src/sender.h
@@ -66,6 +66,10 @@
 
 #include "video.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 struct tx;
 struct rtp;
 struct display;
@@ -128,5 +132,9 @@ struct h264_rtp_state {
 bool sender_init(struct sender_data *data);
 void sender_done(struct sender_data *data);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif // SENDER_H_
 
diff --git a/src/stats.cpp b/src/stats.cpp
index 4a50469b4..99f47418f 100644
--- a/src/stats.cpp
+++ b/src/stats.cpp
@@ -47,7 +47,7 @@ struct stats {
                 platform_spin_t m_spin;
 };
 
-struct stats *stats_new_statistics(struct control_state *control, char * name)
+struct stats *stats_new_statistics(struct control_state *control, const char * name)
 {
         return new stats(string(name), control);
 }
diff --git a/src/stats.h b/src/stats.h
index 59566650c..6953cfa1b 100644
--- a/src/stats.h
+++ b/src/stats.h
@@ -14,7 +14,7 @@ extern "C" {
 struct control_state;
 struct stats;
 
-struct stats *stats_new_statistics(struct control_state *control, char * name);
+struct stats *stats_new_statistics(struct control_state *control, const char * name);
 void stats_update_int(struct stats *, int64_t);
 void stats_format(struct stats *s, char *buffer, int buffer_len);
 void stats_destroy(struct stats *);
diff --git a/src/tfrc.h b/src/tfrc.h
index 7489530e3..885a8a9a8 100644
--- a/src/tfrc.h
+++ b/src/tfrc.h
@@ -43,6 +43,10 @@
  *
  */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 struct tfrc;
 
 struct tfrc *tfrc_init(struct timeval curr_time);
@@ -53,3 +57,7 @@ void         tfrc_recv_rtt       (struct tfrc *state, struct timeval curr_time,
 double       tfrc_feedback_txrate(struct tfrc *state, struct timeval curr_time);
 int          tfrc_feedback_is_due(struct tfrc *state, struct timeval curr_time);
 
+#ifdef __cplusplus
+}
+#endif
+
diff --git a/src/transmit.h b/src/transmit.h
index 798675e40..d2015679a 100644
--- a/src/transmit.h
+++ b/src/transmit.h
@@ -60,6 +60,10 @@
 #include "audio/audio.h"
 #include "types.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 struct module;
 struct rtp;
 struct tx;
@@ -78,5 +82,9 @@ struct tx *tx_init_h264(struct module *parent, unsigned mtu, enum tx_media_type
 
 void tx_send_h264(struct tx *tx_session, struct video_frame *frame, struct rtp *rtp_session);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif // TRANSMIT_H_
 
diff --git a/src/utils/misc.h b/src/utils/misc.h
index 3db13461b..904e7238c 100644
--- a/src/utils/misc.h
+++ b/src/utils/misc.h
@@ -38,7 +38,15 @@
 #ifndef UTILS_MISC_H_
 #define UTILS_MISC_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 int64_t unit_evaluate(const char *str);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif// UTILS_MISC_H_