From 065dc43a59df1b122a05325cba389ad760771dc0 Mon Sep 17 00:00:00 2001 From: Jan Schmidt Date: Sun, 11 May 2008 17:23:20 +0000 Subject: Random doc of the day: the deinterlace element. Original commit message from CVS: * docs/plugins/Makefile.am: * docs/plugins/gst-plugins-bad-plugins-docs.sgml: * docs/plugins/gst-plugins-bad-plugins-sections.txt: * docs/plugins/inspect/plugin-gstinterlace.xml: * gst/deinterlace/gstdeinterlace.c: * gst/deinterlace/gstdeinterlace.h: Random doc of the day: the deinterlace element. --- ChangeLog | 10 ++++ docs/plugins/Makefile.am | 1 + docs/plugins/gst-plugins-bad-plugins-docs.sgml | 2 +- docs/plugins/gst-plugins-bad-plugins-sections.txt | 14 +++++ docs/plugins/inspect/plugin-gstinterlace.xml | 12 ++-- gst/deinterlace/gstdeinterlace.c | 73 +++++++++++++++++++++-- gst/deinterlace/gstdeinterlace.h | 1 + 7 files changed, 102 insertions(+), 11 deletions(-) diff --git a/ChangeLog b/ChangeLog index 18d7acfb..4b56bc30 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,13 @@ +2008-05-11 Jan Schmidt + + * docs/plugins/Makefile.am: + * docs/plugins/gst-plugins-bad-plugins-docs.sgml: + * docs/plugins/gst-plugins-bad-plugins-sections.txt: + * docs/plugins/inspect/plugin-gstinterlace.xml: + * gst/deinterlace/gstdeinterlace.c: + * gst/deinterlace/gstdeinterlace.h: + Random doc of the day: the deinterlace element. + 2008-05-09 Zaheer Abbas Merali * gst/mpegtsparse/mpegtspacketizer.c: diff --git a/docs/plugins/Makefile.am b/docs/plugins/Makefile.am index 9e4a7cde..a96d2029 100644 --- a/docs/plugins/Makefile.am +++ b/docs/plugins/Makefile.am @@ -111,6 +111,7 @@ EXTRA_HFILES = \ $(top_srcdir)/ext/theora/theoradec.h \ $(top_srcdir)/ext/timidity/gsttimidity.h \ $(top_srcdir)/ext/timidity/gstwildmidi.h \ + $(top_srcdir)/gst/deinterlace/gstdeinterlace.h \ $(top_srcdir)/gst/dvdspu/gstdvdspu.h \ $(top_srcdir)/gst/festival/gstfestival.h \ $(top_srcdir)/gst/modplug/gstmodplug.h \ diff --git a/docs/plugins/gst-plugins-bad-plugins-docs.sgml b/docs/plugins/gst-plugins-bad-plugins-docs.sgml index 38d7d07f..0b062e59 100644 --- a/docs/plugins/gst-plugins-bad-plugins-docs.sgml +++ b/docs/plugins/gst-plugins-bad-plugins-docs.sgml @@ -16,7 +16,7 @@ - + diff --git a/docs/plugins/gst-plugins-bad-plugins-sections.txt b/docs/plugins/gst-plugins-bad-plugins-sections.txt index 90ff6da5..039772f4 100644 --- a/docs/plugins/gst-plugins-bad-plugins-sections.txt +++ b/docs/plugins/gst-plugins-bad-plugins-sections.txt @@ -68,6 +68,20 @@ GST_TYPE_DC1394 gst_dc1394_get_type +
+element-deinterlace +deinterlace +GstDeinterlace + +GstDeinterlaceClass +GST_DEINTERLACE +GST_DEINTERLACE_CLASS +GST_IS_DEINTERLACE +GST_IS_DEINTERLACE_CLASS +GST_TYPE_DEINTERLACE +gst_deinterlace_get_type +
+
element-dfbvideosink dfbvideosink diff --git a/docs/plugins/inspect/plugin-gstinterlace.xml b/docs/plugins/inspect/plugin-gstinterlace.xml index 4a639b2b..a006595e 100644 --- a/docs/plugins/inspect/plugin-gstinterlace.xml +++ b/docs/plugins/inspect/plugin-gstinterlace.xml @@ -3,10 +3,10 @@ Deinterlace video ../../gst/deinterlace/.libs/libgstdeinterlace.so libgstdeinterlace.so - 0.10.7 + 0.10.7.1 LGPL gst-plugins-bad - GStreamer Bad Plug-ins source release + GStreamer Bad Plug-ins CVS/prerelease Unknown package origin @@ -17,14 +17,14 @@ Wim Taymans <wim.taymans@gmail.com> - src - source + sink + sink always
video/x-raw-yuv, format=(fourcc){ I420, Y42B }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
 - sink - sink + src + source always
video/x-raw-yuv, format=(fourcc){ I420, Y42B }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]
 diff --git a/gst/deinterlace/gstdeinterlace.c b/gst/deinterlace/gstdeinterlace.c index 39105b57..cd0b8533 100644 --- a/gst/deinterlace/gstdeinterlace.c +++ b/gst/deinterlace/gstdeinterlace.c @@ -28,6 +28,26 @@ #include "gstdeinterlace.h" #include +/** + * SECTION:element-deinterlace + * @short_description: Adaptively deinterlace video + * + * + * + * Adaptively deinterlaces video frames by detecting interlacing artifacts. + * An edge detection matrix is used, with a threshold value. Pixels detected + * as 'interlaced' are replaced with pixels blended from the pixels above and + * below. + * + * Example launch line + * + * + * gst-launch -v videotestsrc ! deinterlace ! ffmpegcolorspace ! xvimagesink + * + * + * + */ + GST_DEBUG_CATEGORY_STATIC (deinterlace_debug); #define GST_CAT_DEFAULT deinterlace_debug @@ -103,26 +123,71 @@ gst_deinterlace_class_init (GstDeinterlaceClass * klass) gobject_class->set_property = gst_deinterlace_set_property; gobject_class->get_property = gst_deinterlace_get_property; + /** + * GstDeinterlace:deinterlace: + * + * Turn processing on/off. When false, no modification of the + * video frames occurs and they pass through intact. + */ g_object_class_install_property (gobject_class, ARG_DEINTERLACE, g_param_spec_boolean ("deinterlace", "deinterlace", "turn deinterlacing on/off", DEFAULT_DEINTERLACE, G_PARAM_READWRITE)); + /** + * GstDeinterlace:di-area-only: + * + * When set to true, only areas affected by the deinterlacing are output, + * making it easy to see which regions are being modified. + * + * See Also: #GstDeinterlace::ni-area-only + */ g_object_class_install_property (gobject_class, ARG_DI_ONLY, g_param_spec_boolean ("di-area-only", "di-area-only", "displays deinterlaced areas only", DEFAULT_DI_AREA_ONLY, G_PARAM_READWRITE)); + /** + * GstDeinterlace:ni-area-only: + * + * When set to true, only areas unaffected by the deinterlacing are output, + * making it easy to see which regions are being preserved intact. + * + * See Also: #GstDeinterlace::di-area-only + */ g_object_class_install_property (gobject_class, ARG_NI_ONLY, g_param_spec_boolean ("ni-area-only", "ni-area-only", "displays non-interlaced areas only", DEFAULT_DI_AREA_ONLY, G_PARAM_READWRITE)); + /** + * GstDeinterlace:blend: + * + * Change the blending for pixels which are detected as + * 'interlacing artifacts'. When true, the output pixel is a weighted + * average (1,2,1) of the pixel and the pixels above and below it. + * When false, the odd field lines are preserved, and the even field lines + * are averaged from the surrounding pixels above and below (the odd field). + */ g_object_class_install_property (gobject_class, ARG_BLEND, g_param_spec_boolean ("blend", "blend", "blend", DEFAULT_BLEND, G_PARAM_READWRITE)); + /** + * GstDeinterlace:threshold: + * + * Affects the threshold of the edge-detection function used for detecting + * interlacing artifacts. + */ g_object_class_install_property (gobject_class, ARG_THRESHOLD, - g_param_spec_int ("threshold", "threshold", "threshold", G_MININT, - G_MAXINT, 0, G_PARAM_READWRITE)); + g_param_spec_int ("threshold", "Edge-detection threshold", + "Threshold value for the interlacing artifacts in the output " + "of the edge detection", G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); + /** + * GstDeinterlace:edge-detect: + * + * Affects the weighting of the edge-detection function used for detecting + * interlacing artifacts. + */ g_object_class_install_property (gobject_class, ARG_EDGE_DETECT, - g_param_spec_int ("edge-detect", "edge-detect", "edge-detect", G_MININT, - G_MAXINT, 0, G_PARAM_READWRITE)); + g_param_spec_int ("edge-detect", "edge detection weighting", + "Weighting value used for calculating the edge detection matrix", + G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); basetransform_class->transform_ip = GST_DEBUG_FUNCPTR (gst_deinterlace_transform_ip); diff --git a/gst/deinterlace/gstdeinterlace.h b/gst/deinterlace/gstdeinterlace.h index 3e7c834e..faa8e811 100644 --- a/gst/deinterlace/gstdeinterlace.h +++ b/gst/deinterlace/gstdeinterlace.h @@ -38,6 +38,7 @@ typedef struct _GstDeinterlaceClass GstDeinterlaceClass; struct _GstDeinterlace { GstBaseTransform basetransform; + /*< private >*/ gint width; gint height; gint uv_height; -- cgit v1.2.1