build: Add all kinds of compiler warning flags and fix the resulting warnings

configure.ac

@@ -18,7 +18,7 @@ dnl define PACKAGE_VERSION_* variables
 AS_VERSION
 
 dnl check if this is a release version
-AS_NANO(GST_CVS="no", GST_CVS="yes")
+AS_NANO(GST_GIT="no", GST_GIT="yes")
 
 dnl can autoconf find the source ?
 AC_CONFIG_SRCDIR([ext/mad/gstmad.c])
@@ -186,13 +186,21 @@ dnl set location of plugin directory
 AG_GST_SET_PLUGINDIR
 
 dnl define an ERROR_CFLAGS Makefile variable
-AG_GST_SET_ERROR_CFLAGS($GST_CVS)
+AG_GST_SET_ERROR_CFLAGS($GST_GIT, [
+    -Wmissing-declarations -Wmissing-prototypes -Wredundant-decls -Wundef
+    -Wwrite-strings -Wformat-nonliteral -Wformat-security -Wold-style-definition
+    -Wcast-align -Winit-self -Wmissing-include-dirs -Waddress
+    -Waggregate-return -Wno-multichar -Wnested-externs ])
 
 dnl define an ERROR_CXXFLAGS Makefile variable
-AG_GST_SET_ERROR_CXXFLAGS($GST_CVS)
+AG_GST_SET_ERROR_CXXFLAGS($GST_GIT, [
+    -Wmissing-declarations -Wredundant-decls -Wundef
+    -Wwrite-strings -Wformat-nonliteral -Wformat-security -Wcast-align
+    -Winit-self -Wmissing-include-dirs -Waddress -Waggregate-return
+    -Wno-multichar])
 
 dnl define correct level for debugging messages
-AG_GST_SET_LEVEL_DEFAULT($GST_CVS)
+AG_GST_SET_LEVEL_DEFAULT($GST_GIT)
 
 dnl used in examples
 AG_GST_DEFAULT_ELEMENTS

ext/amrnb/amrnbdec.c

@@ -67,7 +67,7 @@ static const gint block_size_if2[16] = { 12, 13, 15, 17, 18, 20, 25, 30, 5,
 };
 
 static GType
-gst_amrnb_variant_get_type ()
+gst_amrnb_variant_get_type (void)
 {
   static GType gst_amrnb_variant_type = 0;
   static const GEnumValue gst_amrnb_variant[] = {

ext/amrnb/amrnbenc.c

@@ -41,7 +41,7 @@
 #include "amrnbenc.h"
 
 static GType
-gst_amrnbenc_bandmode_get_type ()
+gst_amrnbenc_bandmode_get_type (void)
 {
   static GType gst_amrnbenc_bandmode_type = 0;
   static const GEnumValue gst_amrnbenc_bandmode[] = {

ext/cdio/gstcdiocddasrc.h

@@ -46,7 +46,7 @@ struct _GstCdioCddaSrcClass
   GstCddaBaseSrcClass  cddabasesrc_class;
 };
 
-GType   gst_cdio_cdda_src_get_type ();
+GType   gst_cdio_cdda_src_get_type (void);
 
 #endif /* __GST_CDIO_CDDA_SRC_H__ */
 

ext/dvdread/dvdreadsrc.c

@@ -1580,7 +1580,7 @@ gst_dvd_read_src_uri_get_type (void)
 static gchar **
 gst_dvd_read_src_uri_get_protocols (void)
 {
-  static gchar *protocols[] = { "dvd", NULL };
+  static gchar *protocols[] = { (gchar *) "dvd", NULL };
 
   return protocols;
 }

ext/lame/gstlame.h

@@ -104,8 +104,8 @@ struct _GstLameClass {
 };
 
 GType gst_lame_get_type(void);
+gboolean gst_lame_register (GstPlugin * plugin);
 
 G_END_DECLS
 
-
 #endif /* __GST_LAME_H__ */

ext/lame/gstlamemp3enc.h

@@ -83,8 +83,8 @@ struct _GstLameMP3EncClass {
 };
 
 GType gst_lamemp3enc_get_type(void);
+gboolean gst_lamemp3enc_register (GstPlugin * plugin);
 
 G_END_DECLS
 
-
 #endif /* __GST_LAMEMP3ENC_H__ */

ext/lame/plugin.c

@@ -24,8 +24,8 @@
 #include <gst/gst.h>
 #include <gst/gst-i18n-plugin.h>
 
-gboolean gst_lamemp3enc_register (GstPlugin * plugin);
+#include "gstlame.h"
-gboolean gst_lame_register (GstPlugin * plugin);
+#include "gstlamemp3enc.h"
 
 static gboolean
 plugin_init (GstPlugin * plugin)

ext/mad/gstmad.c

@@ -75,9 +75,6 @@ GST_STATIC_PAD_TEMPLATE ("sink",
         "channels = (int) [ 1, 2 ]")
     );
 
-static void gst_mad_base_init (gpointer g_class);
-static void gst_mad_class_init (GstMadClass * klass);
-static void gst_mad_init (GstMad * mad, GstMadClass * klass);
 static void gst_mad_dispose (GObject * object);
 
 static void gst_mad_set_property (GObject * object, guint prop_id,

ext/x264/gstx264enc.c

@@ -407,7 +407,7 @@ gst_x264_enc_class_init (GstX264EncClass * klass)
           "Interlaced material", ARG_INTERLACED_DEFAULT, G_PARAM_READWRITE));
 }
 
-void
+static void
 gst_x264_enc_log_callback (gpointer private, gint level, const char *format,
     va_list args)
 {

ext/x264/gstx264enc.h

@@ -107,6 +107,8 @@ struct _GstX264EncClass
   GstElementClass parent_class;
 };
 
+GType gst_x264_enc_get_type (void);
+
 G_END_DECLS
 
 #endif /* __GST_X264_ENC_H__ */

gst/mpegaudioparse/gstmpegaudioparse.c

@@ -53,7 +53,7 @@ GST_DEBUG_CATEGORY_STATIC (mp3parse_debug);
 #define MIN_RESYNC_FRAMES 3
 
 static inline MPEGAudioSeekEntry *
-mpeg_audio_seek_entry_new ()
+mpeg_audio_seek_entry_new (void)
 {
   return g_slice_new (MPEGAudioSeekEntry);
 }
@@ -96,11 +96,6 @@ enum
 };
 
 
-static void gst_mp3parse_class_init (GstMPEGAudioParseClass * klass);
-static void gst_mp3parse_base_init (gpointer klass);
-static void gst_mp3parse_init (GstMPEGAudioParse * mp3parse,
-    GstMPEGAudioParseClass * klass);
-
 static gboolean gst_mp3parse_sink_event (GstPad * pad, GstEvent * event);
 static GstFlowReturn gst_mp3parse_chain (GstPad * pad, GstBuffer * buffer);
 static gboolean mp3parse_src_query (GstPad * pad, GstQuery * query);

gst/mpegaudioparse/gstxingmux.c

@@ -65,7 +65,7 @@ typedef struct _GstXingSeekEntry
 } GstXingSeekEntry;
 
 static inline GstXingSeekEntry *
-gst_xing_seek_entry_new ()
+gst_xing_seek_entry_new (void)
 {
   return g_slice_new (GstXingSeekEntry);
 }

gst/mpegstream/gstdvddemux.c

@@ -125,11 +125,6 @@ GST_STATIC_PAD_TEMPLATE ("current_subpicture",
 GST_BOILERPLATE_FULL (GstDVDDemux, gst_dvd_demux, GstMPEGDemux,
     GST_TYPE_MPEG_DEMUX, _do_init);
 
-static void gst_dvd_demux_class_init (GstDVDDemuxClass * klass);
-static void gst_dvd_demux_base_init (gpointer klass);
-static void gst_dvd_demux_init (GstDVDDemux * dvd_demux,
-    GstDVDDemuxClass * klass);
-
 static gboolean gst_dvd_demux_process_event (GstMPEGParse * mpeg_parse,
     GstEvent * event);
 static gboolean gst_dvd_demux_parse_packhead (GstMPEGParse * mpeg_parse,

gst/mpegstream/gstmpegdemux.c

@@ -82,8 +82,6 @@ GST_STATIC_PAD_TEMPLATE ("private_%d",
 GST_BOILERPLATE_FULL (GstMPEGDemux, gst_mpeg_demux, GstMPEGParse,
     GST_TYPE_MPEG_PARSE, _do_init);
 
-static void gst_mpeg_demux_class_init (GstMPEGDemuxClass * klass);
-
 static gboolean gst_mpeg_demux_process_event (GstMPEGParse * mpeg_parse,
     GstEvent * event);
 

gst/mpegstream/gstmpegparse.c

@@ -82,7 +82,6 @@ static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
 GST_BOILERPLATE_FULL (GstMPEGParse, gst_mpeg_parse, GstElement,
     GST_TYPE_ELEMENT, _do_init);
 
-static void gst_mpeg_parse_class_init (GstMPEGParseClass * klass);
 static GstStateChangeReturn gst_mpeg_parse_change_state (GstElement * element,
     GstStateChange transition);
 

gst/realmedia/asmrules.c

@@ -577,7 +577,7 @@ gst_asm_scan_parse_rule (GstASMScan * scan)
   return rule;
 }
 
-gboolean
+static gboolean
 gst_asm_rule_evaluate (GstASMRule * rule, GHashTable * vars)
 {
   gboolean res;
@@ -618,12 +618,6 @@ gst_asm_rule_book_new (const gchar * rulebook)
   return book;
 }
 
-gint
-gst_asm_rule_book_n_rules (GstASMRuleBook * book)
-{
-  return book->n_rules;
-}
-
 void
 gst_asm_rule_book_free (GstASMRuleBook * book)
 {
@@ -680,7 +674,7 @@ main (gint argc, gchar * argv[])
       "#(($Bandwidth >= 27500) && ($OldPNMPlayer)),AverageBandwidth=27500,priority=9,PNMKeyframeRule=T;#(($Bandwidth >= 27500) && ($OldPNMPlayer)),AverageBandwidth=0,priority=5,PNMNonKeyframeRule=T;#(($Bandwidth < 27500) && ($OldPNMPlayer)),TimestampDelivery=T,DropByN=T,priority=9,PNMThinningRule=T;#($Bandwidth < 13899),TimestampDelivery=T,DropByN=T,priority=9;#($Bandwidth >= 13899) && ($Bandwidth < 19000),AverageBandwidth=13899,Priority=9;#($Bandwidth >= 13899) && ($Bandwidth < 19000),AverageBandwidth=0,Priority=5,OnDepend=\\\"4\\\";#($Bandwidth >= 19000) && ($Bandwidth < 27500),AverageBandwidth=19000,Priority=9;#($Bandwidth >= 19000) && ($Bandwidth < 27500),AverageBandwidth=0,Priority=5,OnDepend=\\\"6\\\";#($Bandwidth >= 27500) && ($Bandwidth < 132958),AverageBandwidth=27500,Priority=9;#($Bandwidth >= 27500) && ($Bandwidth < 132958),AverageBandwidth=0,Priority=5,OnDepend=\\\"8\\\";#($Bandwidth >= 132958) && ($Bandwidth < 187958),AverageBandwidth=132958,Priority=9;#($Bandwidth >= 132958) && ($Bandwidth < 187958),AverageBandwidth=0,Priority=5,OnDepend=\\\"10\\\";#($Bandwidth >= 187958),AverageBandwidth=187958,Priority=9;#($Bandwidth >= 187958),AverageBandwidth=0,Priority=5,OnDepend=\\\"12\\\";";
 
   vars = g_hash_table_new (g_str_hash, g_str_equal);
-  g_hash_table_insert (vars, "Bandwidth", "300000");
+  g_hash_table_insert (vars, (gchar *) "Bandwidth", (gchar *) "300000");
 
   book = gst_asm_rule_book_new (rules1);
   n = gst_asm_rule_book_match (book, vars, rulematch);

gst/realmedia/pnmsrc.c

@@ -218,7 +218,7 @@ gst_pnm_src_uri_get_type (void)
 static gchar **
 gst_pnm_src_uri_get_protocols (void)
 {
-  static gchar *protocols[] = { "pnm", NULL };
+  static gchar *protocols[] = { (gchar *) "pnm", NULL };
 
   return protocols;
 }

gst/realmedia/pnmsrc.h

@@ -51,6 +51,7 @@ struct _GstPNMSrcClass
   GstPushSrcClass parent_class;
 };
 
+GType gst_pnm_src_get_type (void);
 gboolean gst_pnm_src_plugin_init (GstPlugin * plugin);
 
 G_END_DECLS

gst/realmedia/rdtdepay.h

@@ -65,6 +65,8 @@ struct _GstRDTDepayClass
   GstElementClass parent_class;
 };
 
+GType gst_rdt_depay_get_type (void);
+
 gboolean gst_rdt_depay_plugin_init (GstPlugin * plugin);
 
 G_END_DECLS

gst/realmedia/rdtmanager.c

@@ -344,7 +344,7 @@ gst_rdt_manager_base_init (gpointer klass)
 /* BOXED:UINT,UINT */
 #define g_marshal_value_peek_uint(v)     g_value_get_uint (v)
 
-void
+static void
 gst_rdt_manager_marshal_BOXED__UINT_UINT (GClosure * closure,
     GValue * return_value,
     guint n_param_values,
@@ -379,7 +379,7 @@ gst_rdt_manager_marshal_BOXED__UINT_UINT (GClosure * closure,
   g_value_take_boxed (return_value, v_return);
 }
 
-void
+static void
 gst_rdt_manager_marshal_VOID__UINT_UINT (GClosure * closure,
     GValue * return_value,
     guint n_param_values,

gst/realmedia/rtspreal.c

@@ -207,9 +207,9 @@ G_STMT_START {			       \
 
 #define READ_BUFFER_GEN(src, func, name, dest, dest_len)    \
 G_STMT_START {			                            \
-  dest = (gchar *)func (src, name);                                  \
+  dest = (gchar *)func (src, name);                         \
   if (!dest) {                                              \
-    dest = "";                                              \
+    dest = (char *) "";                                     \
     dest_len = 0;                                           \
   }                                                         \
   else if (!strncmp (dest, "buffer;\"", 8)) {               \
@@ -243,11 +243,11 @@ G_STMT_START {			                          \
 G_STMT_START {			                              \
   const gchar *val = gst_sdp_media_get_attribute_val (media, name); \
   if (val && !strncmp (val, "string;\"", 8)) {                \
-    dest = (gchar *) val + 8;                                           \
+    dest = (gchar *) val + 8;                                 \
     dest_len = strlen (dest) - 1;                             \
     dest[dest_len] = '\0';                                    \
   } else {                                                    \
-    dest = "";                                                \
+    dest = (char *) "";                                       \
     dest_len = 0;                                             \
   }                                                           \
 } G_STMT_END
@@ -363,7 +363,8 @@ rtsp_ext_real_parse_sdp (GstRTSPExtension * ext, GstSDPMessage * sdp,
   /* fix the hashtale for the rule parser */
   rules = g_string_new ("");
   vars = g_hash_table_new (g_str_hash, g_str_equal);
-  g_hash_table_insert (vars, "Bandwidth", DEFAULT_BANDWIDTH);
+  g_hash_table_insert (vars, (gchar *) "Bandwidth",
+      (gchar *) DEFAULT_BANDWIDTH);
 
   /* MDPR */
   for (i = 0; i < ctx->n_streams; i++) {