From 42504a39808fbb03ffb21cca96c4ea02ea973223 Mon Sep 17 00:00:00 2001
From: Martin Pulec <pulec@cesnet.cz>
Date: Tue, 12 Aug 2014 15:55:19 +0200
Subject: [PATCH] Use C++ compiler for files using audio_frame2

---
 Makefile.in                                    |  2 +-
 src/audio/{audio.c => audio.cpp}               | 18 +++++++++---------
 src/audio/audio_playback.h                     |  7 +++++++
 src/audio/capture/sdi.h                        |  7 +++++++
 src/audio/{codec.c => codec.cpp}               |  5 +----
 src/audio/codec.h                              |  3 +--
 .../codec/{libavcodec.c => libavcodec.cpp}     | 13 ++++++++-----
 src/audio/echo.h                               |  7 +++++++
 src/audio/export.h                             |  9 +++++++++
 src/audio/playback/sdi.h                       |  7 +++++++
 src/audio/{resampler.c => resampler.cpp}       |  6 +++---
 src/audio/resampler.h                          |  8 ++++++++
 src/audio/{utils.c => utils.cpp}               |  4 ++--
 .../{audio_decoders.c => audio_decoders.cpp}   |  0
 src/{transmit.c => transmit.cpp}               |  0
 15 files changed, 70 insertions(+), 26 deletions(-)
 rename src/audio/{audio.c => audio.cpp} (97%)
 rename src/audio/{codec.c => codec.cpp} (98%)
 rename src/audio/codec/{libavcodec.c => libavcodec.cpp} (98%)
 rename src/audio/{resampler.c => resampler.cpp} (94%)
 rename src/audio/{utils.c => utils.cpp} (99%)
 rename src/rtp/{audio_decoders.c => audio_decoders.cpp} (100%)
 rename src/{transmit.c => transmit.cpp} (100%)

diff --git a/Makefile.in b/Makefile.in
index e13bd5812..b04a194d5 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -45,7 +45,7 @@ uv_datadir = @datadir@/ultragrid/
 # autogenerated headers
 GENERATED_HEADERS              = @GENERATED_HEADERS@
 
-ALL_INCLUDES	= $(wildcard src/*.h) $(wildcard src/*/*.h)
+ALL_INCLUDES	= $(wildcard src/*.h src/*/*.h src/*/*/*.h)
 
 OBJS	      = @OBJS@ \
 	        src/blackmagic_common.o \
diff --git a/src/audio/audio.c b/src/audio/audio.cpp
similarity index 97%
rename from src/audio/audio.c
rename to src/audio/audio.cpp
index 3cb595b47..d68334757 100644
--- a/src/audio/audio.c
+++ b/src/audio/audio.cpp
@@ -243,7 +243,7 @@ struct state_audio * audio_cfg_init(struct module *parent, const char *addrs, in
                 return NULL;
         }
         
-        s = calloc(1, sizeof(struct state_audio));
+        s = (struct state_audio *) calloc(1, sizeof(struct state_audio));
 
         module_init_default(&s->mod);
         s->mod.priv_data = s;
@@ -495,7 +495,7 @@ static struct rtp *initialize_audio_network(struct audio_network_parameters *par
         r = rtp_init_if(params->addr, params->mcast_if, params->recv_port,
                         params->send_port, 255, rtcp_bw,
                         FALSE, rtp_recv_callback,
-                        (void *) params->participants,
+                        (uint8_t *) params->participants,
                         params->use_ipv6, false);
         if (r != NULL) {
                 pdb_add(params->participants, rtp_my_ssrc(r));
@@ -509,7 +509,7 @@ static struct rtp *initialize_audio_network(struct audio_network_parameters *par
 
 static void *audio_receiver_thread(void *arg)
 {
-        struct state_audio *s = arg;
+        struct state_audio *s = (struct state_audio *) arg;
         // rtp variables
         struct timeval timeout, curr_time;
         uint32_t ts;
@@ -520,7 +520,7 @@ static void *audio_receiver_thread(void *arg)
         memset(&pbuf_data.buffer, 0, sizeof(struct audio_frame));
         memset(&device_desc, 0, sizeof(struct audio_desc));
 
-        pbuf_data.decoder = audio_decoder_init(s->audio_channel_map, s->audio_scale, s->requested_encryption);
+        pbuf_data.decoder = (struct state_audio_decoder *) audio_decoder_init(s->audio_channel_map, s->audio_scale, s->requested_encryption);
         assert(pbuf_data.decoder != NULL);
                 
         printf("Audio receiving started.\n");
@@ -686,7 +686,7 @@ static void resample(struct state_resample *s, struct audio_frame *buffer)
 
         if(buffer->sample_rate == s->resample_to && s->codec_supported_bytes_per_sample == NULL) {
                 memcpy(&s->resampled, buffer, sizeof(s->resampled));
-                s->resampled.data = malloc(buffer->data_len);
+                s->resampled.data = (char *) malloc(buffer->data_len);
                 memcpy(s->resampled.data, buffer->data, buffer->data_len);
         } else {
                 /**
@@ -695,7 +695,7 @@ static void resample(struct state_resample *s, struct audio_frame *buffer)
                 assert(set_contains(s->codec_supported_bytes_per_sample, 2));
                 // expect that we may got as much as 12-times more data (eg 8 kHz to 96 kHz
                 uint32_t write_frames = 12 * (buffer->data_len / buffer->ch_count / buffer->bps);
-                s->resampled.data = malloc(write_frames * 2 * buffer->ch_count);
+                s->resampled.data = (char *) malloc(write_frames * 2 * buffer->ch_count);
                 if(s->resample_from != buffer->sample_rate || s->resample_ch_count != buffer->ch_count) {
                         s->resample_from = buffer->sample_rate;
                         s->resample_ch_count = buffer->ch_count;
@@ -806,7 +806,7 @@ static void *audio_sender_thread(void *arg)
 
         memset(&resample_state, 0, sizeof(resample_state));
         resample_state.resample_to = s->resample_to;
-        resample_state.resample_buffer = malloc(1024 * 1024);
+        resample_state.resample_buffer = (char *) malloc(1024 * 1024);
         resample_state.codec_supported_bytes_per_sample =
                 audio_codec_get_supported_bps(s->audio_coder);
         
@@ -894,7 +894,7 @@ void audio_register_put_callback(struct state_audio *s, void (*callback)(void *,
         if(!audio_playback_get_display_flags(s->audio_playback_device))
                 return;
         
-        sdi_playback = audio_playback_get_state_pointer(s->audio_playback_device);
+        sdi_playback = (struct state_sdi_playback *) audio_playback_get_state_pointer(s->audio_playback_device);
         sdi_register_put_callback(sdi_playback, callback, udata);
 }
 
@@ -906,7 +906,7 @@ void audio_register_reconfigure_callback(struct state_audio *s, int (*callback)(
         if(!audio_playback_get_display_flags(s->audio_playback_device))
                 return;
         
-        sdi_playback = audio_playback_get_state_pointer(s->audio_playback_device);
+        sdi_playback = (struct state_sdi_playback *) audio_playback_get_state_pointer(s->audio_playback_device);
         sdi_register_reconfigure_callback(sdi_playback, callback, udata);
 }
 
diff --git a/src/audio/audio_playback.h b/src/audio/audio_playback.h
index 2e9bbcc00..ece29b2cf 100644
--- a/src/audio/audio_playback.h
+++ b/src/audio/audio_playback.h
@@ -46,6 +46,9 @@
  *
  */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
 
 struct state_audio_playback;
 
@@ -78,5 +81,9 @@ void audio_register_reconfigure_callback(struct state_audio *s, int (*callback)(
  */
 void                       *audio_playback_get_state_pointer(struct state_audio_playback *s);
 
+#ifdef __cplusplus
+}
+#endif
+
 /* vim: set expandtab: sw=8 */
 
diff --git a/src/audio/capture/sdi.h b/src/audio/capture/sdi.h
index aa6c8f4e3..29e8126e4 100644
--- a/src/audio/capture/sdi.h
+++ b/src/audio/capture/sdi.h
@@ -46,6 +46,10 @@
  *
  */
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 //void audio_sdi_send(struct state_audio *s, struct audio_frame *frame);
 //int audio_does_send_sdi(struct state_audio *s);
 struct audio_frame;
@@ -60,6 +64,9 @@ struct audio_frame * sdi_read(void *state);
 /* SDI specific API */
 void sdi_capture_new_incoming_frame(void *state, struct audio_frame *frame);
 
+#ifdef __cplusplus
+}
+#endif
 
 /* vim: set expandtab: sw=8 */
 
diff --git a/src/audio/codec.c b/src/audio/codec.cpp
similarity index 98%
rename from src/audio/codec.c
rename to src/audio/codec.cpp
index 11358ffc1..45d1f5d02 100644
--- a/src/audio/codec.c
+++ b/src/audio/codec.cpp
@@ -89,11 +89,8 @@ static struct audio_codec *audio_codecs[MAX_AUDIO_CODECS] = {
 };
 static struct audio_codec_state *audio_codec_init_real(const char *audio_codec_cfg,
                 audio_codec_direction_t direction, bool try_init);
-static void register_audio_codec_real(struct audio_codec *);
 
-void (*register_audio_codec)(struct audio_codec *) = register_audio_codec_real;
-
-static void register_audio_codec_real(struct audio_codec *codec)
+void register_audio_codec(struct audio_codec *codec)
 {
         for(int i = 0; i < MAX_AUDIO_CODECS; ++i) {
                 if(audio_codecs[i] == 0) {
diff --git a/src/audio/codec.h b/src/audio/codec.h
index a54705aea..426142e47 100644
--- a/src/audio/codec.h
+++ b/src/audio/codec.h
@@ -69,8 +69,7 @@ struct audio_codec {
         void (*done)(void *);
 };
 
-extern void (*register_audio_codec)(struct audio_codec *);
-
+void register_audio_codec(struct audio_codec *);
 typedef struct {
         const char *name;
         /** @var tag
diff --git a/src/audio/codec/libavcodec.c b/src/audio/codec/libavcodec.cpp
similarity index 98%
rename from src/audio/codec/libavcodec.c
rename to src/audio/codec/libavcodec.cpp
index de86831c6..b4162dcc9 100644
--- a/src/audio/codec/libavcodec.c
+++ b/src/audio/codec/libavcodec.cpp
@@ -54,11 +54,13 @@
 
 #include "audio/codec/libavcodec.h"
 
+extern "C" {
 #include <libavcodec/avcodec.h>
 #if LIBAVCODEC_VERSION_MAJOR >= 54
 #include <libavutil/channel_layout.h>
 #endif
 #include <libavutil/mem.h>
+}
 
 #include "audio/audio.h"
 #include "audio/codec.h"
@@ -92,7 +94,7 @@ static void register_module(void)
 }
 
 typedef struct {
-        int codec_id;
+        enum AVCodecID codec_id;
 } audio_codec_t_to_codec_id_mapping_t;
 
 static const audio_codec_t_to_codec_id_mapping_t mapping[] = 
@@ -140,7 +142,7 @@ struct libavcodec_codec_state {
 static void *libavcodec_init(audio_codec_t audio_codec, audio_codec_direction_t direction, bool try_init,
                 int bitrate)
 {
-        int codec_id = 0;
+        enum AVCodecID codec_id = AV_CODEC_ID_NONE;
         
         if(audio_codec <= sizeof(mapping) / sizeof(audio_codec_t_to_codec_id_mapping_t)) {
                 codec_id = mapping[audio_codec].codec_id;
@@ -155,7 +157,8 @@ static void *libavcodec_init(audio_codec_t audio_codec, audio_codec_direction_t
 
         avcodec_register_all();
 
-        struct libavcodec_codec_state *s = calloc(1, sizeof(struct libavcodec_codec_state));
+        struct libavcodec_codec_state *s = (struct libavcodec_codec_state *)
+                calloc(1, sizeof(struct libavcodec_codec_state));
         if(direction == AUDIO_CODER) {
                 s->codec = avcodec_find_encoder(codec_id);
         } else {
@@ -191,8 +194,8 @@ static void *libavcodec_init(audio_codec_t audio_codec, audio_codec_direction_t
 
         memset(&s->tmp, 0, sizeof(audio_channel));
         memset(&s->output_channel, 0, sizeof(audio_channel));
-        s->tmp.data = malloc(1024*1024);
-        s->output_channel.data = malloc(1024*1024);
+        s->tmp.data = (char *) malloc(1024*1024);
+        s->output_channel.data = (char *) malloc(1024*1024);
 
         if(direction == AUDIO_CODER) {
                 s->output_channel.codec = audio_codec;
diff --git a/src/audio/echo.h b/src/audio/echo.h
index 09e19b8ad..3b1b44f25 100644
--- a/src/audio/echo.h
+++ b/src/audio/echo.h
@@ -51,6 +51,10 @@
 
 #include "audio/audio.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 struct echo_cancellation;
 
 typedef struct echo_cancellation echo_cancellation_t;
@@ -61,5 +65,8 @@ void echo_play(struct echo_cancellation *state, struct audio_frame *frame);
 
 struct audio_frame * echo_cancel(struct echo_cancellation *state, struct audio_frame *frame);
 
+#ifdef __cplusplus
+}
+#endif
 
 #endif /* _ECHO_H_ */
diff --git a/src/audio/export.h b/src/audio/export.h
index 6d3b705c1..034bd13d4 100644
--- a/src/audio/export.h
+++ b/src/audio/export.h
@@ -49,6 +49,10 @@
 #ifndef _EXPORT_H_
 #define _EXPORT_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 struct audio_export;
 struct audio_frame;
 
@@ -56,4 +60,9 @@ struct audio_export * audio_export_init(char *filename);
 void audio_export_destroy(struct audio_export *state);
 void audio_export(struct audio_export *state, struct audio_frame *frame);
 
+#ifdef __cplusplus
+}
+#endif
+
+
 #endif /* _EXPORT_H_ */
diff --git a/src/audio/playback/sdi.h b/src/audio/playback/sdi.h
index f5a5af6e4..70dbb96fc 100644
--- a/src/audio/playback/sdi.h
+++ b/src/audio/playback/sdi.h
@@ -48,6 +48,10 @@
 
 struct audio_frame;
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 void                     sdi_playback_help(const char *driver_name);
 void                    *sdi_playback_init(char *cfg);
 void                     sdi_put_frame(void *state, struct audio_frame *frame);
@@ -61,6 +65,9 @@ void sdi_register_reconfigure_callback(void *s, int (*callback)(void *, int, int
                         int),
                 void *udata);
 
+#ifdef __cplusplus
+}
+#endif
 
 /* vim: set expandtab: sw=8 */
 
diff --git a/src/audio/resampler.c b/src/audio/resampler.cpp
similarity index 94%
rename from src/audio/resampler.c
rename to src/audio/resampler.cpp
index c9f6392ab..e227450dd 100644
--- a/src/audio/resampler.c
+++ b/src/audio/resampler.cpp
@@ -16,10 +16,10 @@ struct resampler
 
 struct resampler *resampler_init(int dst_sample_rate)
 {
-        struct resampler *s = calloc(1, sizeof(struct resampler));
+        struct resampler *s = (struct resampler *) calloc(1, sizeof(struct resampler));
 
-        s->resample_buffer = malloc(1024 * 1024);
-        s->muxed = malloc(1024 * 1024);
+        s->resample_buffer = (char *) malloc(1024 * 1024);
+        s->muxed = (char *) malloc(1024 * 1024);
         s->resampled = audio_frame2_init();
         s->resample_to = dst_sample_rate;
 
diff --git a/src/audio/resampler.h b/src/audio/resampler.h
index 524a42582..e5a0084f8 100644
--- a/src/audio/resampler.h
+++ b/src/audio/resampler.h
@@ -6,9 +6,17 @@
 
 #include "audio/audio.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 struct resampler;
 
 struct resampler *resampler_init(int dst_sample_rate);
 void              resampler_done(struct resampler *);
 audio_frame2     *resampler_resample(struct resampler *, audio_frame2 *);
 
+#ifdef __cplusplus
+}
+#endif
+
diff --git a/src/audio/utils.c b/src/audio/utils.cpp
similarity index 99%
rename from src/audio/utils.c
rename to src/audio/utils.cpp
index 3e4b45d76..cc3c93481 100644
--- a/src/audio/utils.c
+++ b/src/audio/utils.cpp
@@ -82,7 +82,7 @@ void audio_frame2_allocate(audio_frame2 *frame, int nr_channels, int max_size)
         frame->ch_count = nr_channels;
 
         for(int i = 0; i < nr_channels; ++i) {
-                frame->data[i] = malloc(max_size);
+                frame->data[i] = (char *) malloc(max_size);
         }
 }
 
@@ -101,7 +101,7 @@ void audio_frame2_append(audio_frame2 *dest, audio_frame2 *src)
                 dest->max_size = new_max_size;
                 dest->ch_count = src->ch_count;
                 for (int i = 0; i < src->ch_count; ++i) {
-                        dest->data[i] = realloc(dest->data[i], new_max_size);
+                        dest->data[i] = (char *) realloc(dest->data[i], new_max_size);
                 }
         }
 
diff --git a/src/rtp/audio_decoders.c b/src/rtp/audio_decoders.cpp
similarity index 100%
rename from src/rtp/audio_decoders.c
rename to src/rtp/audio_decoders.cpp
diff --git a/src/transmit.c b/src/transmit.cpp
similarity index 100%
rename from src/transmit.c
rename to src/transmit.cpp