Fix #337365 (g_type_class_ref <-> g_type_class_peek_parent)

Original commit message from CVS:
* ext/amrwb/gstamrwbdec.c: (gst_amrwbdec_class_init):
* ext/amrwb/gstamrwbenc.c: (gst_amrwbenc_class_init):
* ext/amrwb/gstamrwbparse.c: (gst_amrwbparse_class_init):
* ext/arts/gst_arts.c: (gst_arts_class_init):
* ext/artsd/gstartsdsink.c: (gst_artsdsink_class_init):
* ext/audiofile/gstafsink.c: (gst_afsink_class_init):
* ext/audiofile/gstafsrc.c: (gst_afsrc_class_init):
* ext/audioresample/gstaudioresample.c:
* ext/cdaudio/gstcdaudio.c: (gst_cdaudio_class_init):
* ext/directfb/dfbvideosink.c: (gst_dfbvideosink_class_init):
* ext/divx/gstdivxdec.c: (gst_divxdec_class_init):
* ext/hermes/gsthermescolorspace.c:
(gst_hermes_colorspace_class_init):
* ext/ivorbis/vorbisfile.c: (gst_ivorbisfile_class_init):
* ext/jack/gstjack.c: (gst_jack_class_init):
* ext/jack/gstjackbin.c: (gst_jack_bin_class_init):
* ext/lcs/gstcolorspace.c: (gst_colorspace_class_init):
* ext/libfame/gstlibfame.c: (gst_fameenc_class_init):
* ext/musicbrainz/gsttrm.c: (gst_musicbrainz_class_init):
* ext/nas/nassink.c: (gst_nassink_class_init):
* ext/shout/gstshout.c: (gst_icecastsend_class_init):
* ext/snapshot/gstsnapshot.c: (gst_snapshot_class_init):
* ext/sndfile/gstsf.c: (gst_sf_class_init):
* ext/swfdec/gstswfdec.c: (gst_swfdecbuffer_class_init),
(gst_swfdec_class_init):
* ext/tarkin/gsttarkindec.c: (gst_tarkindec_class_init):
* ext/tarkin/gsttarkinenc.c: (gst_tarkinenc_class_init):
* gst/cdxaparse/gstcdxastrip.c: (gst_cdxastrip_class_init):
* gst/chart/gstchart.c: (gst_chart_class_init):
* gst/colorspace/gstcolorspace.c: (gst_colorspace_class_init):
* gst/deinterlace/gstdeinterlace.c: (gst_deinterlace_class_init):
* gst/festival/gstfestival.c: (gst_festival_class_init):
* gst/filter/gstbpwsinc.c: (gst_bpwsinc_class_init):
* gst/filter/gstiir.c: (gst_iir_class_init):
* gst/filter/gstlpwsinc.c: (gst_lpwsinc_class_init):
* gst/librfb/gstrfbsrc.c: (gst_rfbsrc_class_init):
* gst/mixmatrix/mixmatrix.c: (gst_mixmatrix_class_init):
* gst/mpeg1sys/gstmpeg1systemencode.c:
(gst_system_encode_class_init):
* gst/mpeg1videoparse/gstmp1videoparse.c:
(gst_mp1videoparse_class_init):
* gst/mpeg2sub/gstmpeg2subt.c: (gst_mpeg2subt_class_init):
* gst/mpegaudioparse/gstmpegaudioparse.c:
(gst_mp3parse_class_init):
* gst/overlay/gstoverlay.c: (gst_overlay_class_init):
* gst/passthrough/gstpassthrough.c: (passthrough_class_init):
* gst/playondemand/gstplayondemand.c: (play_on_demand_class_init):
* gst/rtjpeg/gstrtjpegdec.c: (gst_rtjpegdec_class_init):
* gst/rtjpeg/gstrtjpegenc.c: (gst_rtjpegenc_class_init):
* gst/smooth/gstsmooth.c: (gst_smooth_class_init):
* gst/smoothwave/gstsmoothwave.c: (gst_smoothwave_class_init):
* gst/spectrum/gstspectrum.c: (gst_spectrum_class_init):
* gst/stereo/gststereo.c: (gst_stereo_class_init):
* gst/switch/gstswitch.c: (gst_switch_class_init):
* gst/tta/gstttadec.c: (gst_tta_dec_class_init):
* gst/tta/gstttaparse.c: (gst_tta_parse_class_init):
* gst/vbidec/gstvbidec.c: (gst_vbidec_class_init):
* gst/videocrop/gstvideocrop.c: (gst_video_crop_class_init):
* gst/virtualdub/gstxsharpen.c: (gst_xsharpen_class_init):
* gst/y4m/gsty4mencode.c: (gst_y4mencode_class_init):
* sys/cdrom/gstcdplayer.c: (cdplayer_class_init):
* sys/directsound/gstdirectsoundsink.c:
(gst_directsoundsink_class_init):
* sys/dxr3/dxr3audiosink.c: (dxr3audiosink_class_init):
* sys/dxr3/dxr3spusink.c: (dxr3spusink_class_init):
* sys/dxr3/dxr3videosink.c: (dxr3videosink_class_init):
* sys/qcam/gstqcamsrc.c: (gst_qcamsrc_class_init):
* sys/v4l2/gstv4l2colorbalance.c:
(gst_v4l2_color_balance_channel_class_init):
* sys/v4l2/gstv4l2tuner.c: (gst_v4l2_tuner_channel_class_init),
(gst_v4l2_tuner_norm_class_init):
* sys/ximagesrc/ximagesrc.c: (gst_ximagesrc_class_init):
Fix #337365 (g_type_class_ref <-> g_type_class_peek_parent)

gst/audiofx/audiowsincband.c

@@ -153,7 +153,7 @@ gst_bpwsinc_class_init (GstBPWSincClass * klass)
   gobject_class = (GObjectClass *) klass;
   gstelement_class = (GstElementClass *) klass;
 
-  parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
+  parent_class = g_type_class_peek_parent (klass);
 
   g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_LOWER_FREQUENCY,
       g_param_spec_double ("lower-frequency", "Lower Frequency",

gst/audiofx/audiowsinclimit.c

@@ -151,7 +151,7 @@ gst_lpwsinc_class_init (GstLPWSincClass * klass)
   gobject_class = (GObjectClass *) klass;
   gstelement_class = (GstElementClass *) klass;
 
-  parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
+  parent_class = g_type_class_peek_parent (klass);
 
   g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FREQUENCY,
       g_param_spec_double ("frequency", "Frequency",

gst/spectrum/gstspectrum.c

@@ -104,7 +104,7 @@ gst_spectrum_class_init (GstSpectrumClass * klass)
 
   gobject_class = (GObjectClass *) klass;
 
-  parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
+  parent_class = g_type_class_peek_parent (klass);
 
   g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_WIDTH, g_param_spec_int ("width", "width", "width", G_MININT, G_MAXINT, 0, G_PARAM_WRITABLE));   /* CHECKME */
 

gst/videocrop/gstvideocrop.c

@@ -160,7 +160,7 @@ gst_video_crop_class_init (GstVideoCropClass * klass)
   gobject_class = (GObjectClass *) klass;
   gstelement_class = (GstElementClass *) klass;
 
-  parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
+  parent_class = g_type_class_peek_parent (klass);
 
   g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_LEFT,
       g_param_spec_int ("left", "Left", "Pixels to crop at left",

sys/directsound/gstdirectsoundsink.c

@@ -121,7 +121,7 @@ gst_directsoundsink_class_init (GstDirectSoundSinkClass * klass)
   gstbaseaudiosink_class = (GstBaseAudioSinkClass *) klass;
   gstaudiosink_class = (GstAudioSinkClass *) klass;
 
-  parent_class = g_type_class_ref (GST_TYPE_BASE_AUDIO_SINK);
+  parent_class = g_type_class_peek_parent (klass);
 
   gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_directsoundsink_dispose);
   gobject_class->get_property =

sys/v4l2/gstv4l2colorbalance.c

@@ -73,7 +73,7 @@ static void
 gst_v4l2_color_balance_channel_class_init (GstV4l2ColorBalanceChannelClass *
     klass)
 {
-  parent_class = g_type_class_ref (GST_TYPE_COLOR_BALANCE_CHANNEL);
+  parent_class = g_type_class_peek_parent (klass);
 }
 
 static void

sys/v4l2/gstv4l2tuner.c

@@ -85,7 +85,7 @@ gst_v4l2_tuner_channel_get_type (void)
 static void
 gst_v4l2_tuner_channel_class_init (GstV4l2TunerChannelClass * klass)
 {
-  channel_parent_class = g_type_class_ref (GST_TYPE_TUNER_CHANNEL);
+  channel_parent_class = g_type_class_peek_parent (klass);
 }
 
 static void
@@ -126,7 +126,7 @@ gst_v4l2_tuner_norm_get_type (void)
 static void
 gst_v4l2_tuner_norm_class_init (GstV4l2TunerNormClass * klass)
 {
-  norm_parent_class = g_type_class_ref (GST_TYPE_TUNER_NORM);
+  norm_parent_class = g_type_class_peek_parent (klass);
 }
 
 static void

sys/ximage/gstximagesrc.c

@@ -793,7 +793,7 @@ gst_ximagesrc_class_init (GstXImageSrcClass * klass)
           "Show mouse pointer if XFixes extension enabled", TRUE,
           G_PARAM_READWRITE));
 
-  parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
+  parent_class = g_type_class_peek_parent (klass);
 
   push_class->create = gst_ximagesrc_create;
   bc->get_caps = gst_ximagesrc_get_caps;