diff options
Diffstat (limited to 'gst/deinterlace/gstdeinterlace.c')
-rw-r--r-- | gst/deinterlace/gstdeinterlace.c | 271 |
1 files changed, 132 insertions, 139 deletions
diff --git a/gst/deinterlace/gstdeinterlace.c b/gst/deinterlace/gstdeinterlace.c index 31cc7a9d..8b174e39 100644 --- a/gst/deinterlace/gstdeinterlace.c +++ b/gst/deinterlace/gstdeinterlace.c @@ -28,21 +28,22 @@ #include "gstdeinterlace.h" /* elementfactory information */ -static GstElementDetails deinterlace_details = GST_ELEMENT_DETAILS ( - "Deinterlace", - "Filter/Effect/Video", - "Deinterlace video", - "Wim Taymans <wim.taymans@chello.be>" -); +static GstElementDetails deinterlace_details = +GST_ELEMENT_DETAILS ("Deinterlace", + "Filter/Effect/Video", + "Deinterlace video", + "Wim Taymans <wim.taymans@chello.be>"); /* Filter signals and args */ -enum { +enum +{ /* FILL ME */ LAST_SIGNAL }; -enum { +enum +{ ARG_0, ARG_DI_ONLY, ARG_BLEND, @@ -51,108 +52,102 @@ enum { }; static GstStaticPadTemplate deinterlace_src_factory = -GST_STATIC_PAD_TEMPLATE ( - "src", - GST_PAD_SRC, - GST_PAD_ALWAYS, - GST_STATIC_CAPS ( GST_VIDEO_CAPS_YUV ("I420")) -); +GST_STATIC_PAD_TEMPLATE ("src", + GST_PAD_SRC, + GST_PAD_ALWAYS, + GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420")) + ); static GstStaticPadTemplate deinterlace_sink_factory = -GST_STATIC_PAD_TEMPLATE ( - "sink", - GST_PAD_SINK, - GST_PAD_ALWAYS, - GST_STATIC_CAPS ( GST_VIDEO_CAPS_YUV ("I420")) -); +GST_STATIC_PAD_TEMPLATE ("sink", + GST_PAD_SINK, + GST_PAD_ALWAYS, + GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420")) + ); -static GType gst_deinterlace_get_type (void); +static GType gst_deinterlace_get_type (void); -static void gst_deinterlace_base_init (gpointer g_class); -static void gst_deinterlace_class_init (GstDeInterlaceClass *klass); -static void gst_deinterlace_init (GstDeInterlace *filter); +static void gst_deinterlace_base_init (gpointer g_class); +static void gst_deinterlace_class_init (GstDeInterlaceClass * klass); +static void gst_deinterlace_init (GstDeInterlace * filter); -static void gst_deinterlace_set_property (GObject *object, guint prop_id, - const GValue *value, GParamSpec *pspec); -static void gst_deinterlace_get_property (GObject *object, guint prop_id, - GValue *value, GParamSpec *pspec); +static void gst_deinterlace_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec); +static void gst_deinterlace_get_property (GObject * object, guint prop_id, + GValue * value, GParamSpec * pspec); -static void gst_deinterlace_chain (GstPad *pad, GstData *_data); +static void gst_deinterlace_chain (GstPad * pad, GstData * _data); static GstElementClass *parent_class = NULL; + /*static guint gst_filter_signals[LAST_SIGNAL] = { 0 }; */ static GType -gst_deinterlace_get_type(void) { +gst_deinterlace_get_type (void) +{ static GType deinterlace_type = 0; if (!deinterlace_type) { static const GTypeInfo deinterlace_info = { - sizeof(GstDeInterlaceClass), + sizeof (GstDeInterlaceClass), gst_deinterlace_base_init, NULL, - (GClassInitFunc)gst_deinterlace_class_init, + (GClassInitFunc) gst_deinterlace_class_init, NULL, NULL, - sizeof(GstDeInterlace), + sizeof (GstDeInterlace), 0, - (GInstanceInitFunc)gst_deinterlace_init, + (GInstanceInitFunc) gst_deinterlace_init, }; - deinterlace_type = g_type_register_static(GST_TYPE_ELEMENT, "GstDeInterlace", &deinterlace_info, 0); + deinterlace_type = + g_type_register_static (GST_TYPE_ELEMENT, "GstDeInterlace", + &deinterlace_info, 0); } return deinterlace_type; } static void gst_deinterlace_base_init (gpointer g_class) -{ +{ GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); - gst_element_class_add_pad_template (element_class, - gst_static_pad_template_get (&deinterlace_src_factory)); - gst_element_class_add_pad_template (element_class, - gst_static_pad_template_get (&deinterlace_sink_factory)); + gst_element_class_add_pad_template (element_class, + gst_static_pad_template_get (&deinterlace_src_factory)); + gst_element_class_add_pad_template (element_class, + gst_static_pad_template_get (&deinterlace_sink_factory)); gst_element_class_set_details (element_class, &deinterlace_details); } static void -gst_deinterlace_class_init (GstDeInterlaceClass *klass) +gst_deinterlace_class_init (GstDeInterlaceClass * klass) { GObjectClass *gobject_class; GstElementClass *gstelement_class; - gobject_class = (GObjectClass*)klass; - gstelement_class = (GstElementClass*)klass; + gobject_class = (GObjectClass *) klass; + gstelement_class = (GstElementClass *) klass; - parent_class = g_type_class_ref(GST_TYPE_ELEMENT); + parent_class = g_type_class_ref (GST_TYPE_ELEMENT); - g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DI_ONLY, - g_param_spec_boolean("di_area_only","di_area_only","di_area_only", - TRUE,G_PARAM_READWRITE)); /* CHECKME */ - g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_BLEND, - g_param_spec_boolean("blend","blend","blend", - TRUE,G_PARAM_READWRITE)); /* CHECKME */ - g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_THRESHOLD, - g_param_spec_int("threshold","threshold","threshold", - G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */ - g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_EDGE_DETECT, - g_param_spec_int("edge_detect","edge_detect","edge_detect", - G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */ + g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_DI_ONLY, g_param_spec_boolean ("di_area_only", "di_area_only", "di_area_only", TRUE, G_PARAM_READWRITE)); /* CHECKME */ + g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_BLEND, g_param_spec_boolean ("blend", "blend", "blend", TRUE, G_PARAM_READWRITE)); /* CHECKME */ + g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_THRESHOLD, g_param_spec_int ("threshold", "threshold", "threshold", G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); /* CHECKME */ + g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_EDGE_DETECT, g_param_spec_int ("edge_detect", "edge_detect", "edge_detect", G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); /* CHECKME */ gobject_class->set_property = gst_deinterlace_set_property; gobject_class->get_property = gst_deinterlace_get_property; } static GstPadLinkReturn -gst_deinterlace_link (GstPad *pad, const GstCaps *caps) +gst_deinterlace_link (GstPad * pad, const GstCaps * caps) { GstDeInterlace *filter; GstStructure *structure; GstPadLinkReturn ret; - filter = GST_DEINTERLACE(gst_pad_get_parent (pad)); - + filter = GST_DEINTERLACE (gst_pad_get_parent (pad)); + ret = gst_pad_try_set_caps (filter->srcpad, caps); if (GST_PAD_LINK_FAILED (ret)) { return ret; @@ -162,29 +157,31 @@ gst_deinterlace_link (GstPad *pad, const GstCaps *caps) gst_structure_get_int (structure, "width", &filter->width); gst_structure_get_int (structure, "height", &filter->height); - if (filter->picsize != (filter->width*filter->height)) { - if (filter->src) - g_free(filter->src); - filter->picsize = filter->width*filter->height; - filter->src = g_malloc(filter->picsize); + if (filter->picsize != (filter->width * filter->height)) { + if (filter->src) + g_free (filter->src); + filter->picsize = filter->width * filter->height; + filter->src = g_malloc (filter->picsize); } return GST_PAD_LINK_OK; } static void -gst_deinterlace_init (GstDeInterlace *filter) +gst_deinterlace_init (GstDeInterlace * filter) { - filter->sinkpad = gst_pad_new_from_template( - gst_static_pad_template_get(&deinterlace_sink_factory),"sink"); - gst_pad_set_chain_function(filter->sinkpad,gst_deinterlace_chain); - gst_pad_set_link_function(filter->sinkpad,gst_deinterlace_link); - gst_element_add_pad(GST_ELEMENT(filter),filter->sinkpad); - - filter->srcpad = gst_pad_new_from_template( - gst_static_pad_template_get(&deinterlace_src_factory),"src"); - gst_pad_set_link_function(filter->srcpad,gst_deinterlace_link); - gst_element_add_pad(GST_ELEMENT(filter),filter->srcpad); + filter->sinkpad = + gst_pad_new_from_template (gst_static_pad_template_get + (&deinterlace_sink_factory), "sink"); + gst_pad_set_chain_function (filter->sinkpad, gst_deinterlace_chain); + gst_pad_set_link_function (filter->sinkpad, gst_deinterlace_link); + gst_element_add_pad (GST_ELEMENT (filter), filter->sinkpad); + + filter->srcpad = + gst_pad_new_from_template (gst_static_pad_template_get + (&deinterlace_src_factory), "src"); + gst_pad_set_link_function (filter->srcpad, gst_deinterlace_link); + gst_element_add_pad (GST_ELEMENT (filter), filter->srcpad); filter->show_deinterlaced_area_only = FALSE; filter->blend = FALSE; @@ -197,7 +194,7 @@ gst_deinterlace_init (GstDeInterlace *filter) } static void -gst_deinterlace_chain (GstPad *pad, GstData *_data) +gst_deinterlace_chain (GstPad * pad, GstData * _data) { GstBuffer *buf = GST_BUFFER (_data); GstDeInterlace *filter; @@ -228,14 +225,14 @@ gst_deinterlace_chain (GstPad *pad, GstData *_data) yuvptr = GST_BUFFER_DATA (buf); bShowDeinterlacedAreaOnly = filter->show_deinterlaced_area_only; - memcpy(filter->src, yuvptr, filter->picsize); + memcpy (filter->src, yuvptr, filter->picsize); - y_dst = yuvptr; /* dst y pointer */ - /* we should not change u,v because one u, v value stands for */ - /* 2 pixels per 2 lines = 4 pixel and we don't want to change */ - /* the color of */ + y_dst = yuvptr; /* dst y pointer */ + /* we should not change u,v because one u, v value stands for */ + /* 2 pixels per 2 lines = 4 pixel and we don't want to change */ + /* the color of */ - y_line = width; + y_line = width; y_src = src; iThreshold = iThreshold * iThreshold * 4; @@ -244,10 +241,10 @@ gst_deinterlace_chain (GstPad *pad, GstData *_data) iEdgeDetect = 180; iEdgeDetect = iEdgeDetect * iEdgeDetect; - y1 = 0; /* Avoid compiler warning. The value is not used. */ + y1 = 0; /* Avoid compiler warning. The value is not used. */ for (x = 0; x < width; x++) { psrc3 = y_src + x; - y3 = *psrc3; + y3 = *psrc3; psrc2 = psrc3 + y_line; y2 = *psrc2; pdst1 = y_dst + x; @@ -260,48 +257,49 @@ gst_deinterlace_chain (GstPad *pad, GstData *_data) y1 = y2; y2 = y3; if (y < height - 1) { - y3 = *psrc3; + y3 = *psrc3; } else { - y3 = y1; + y3 = y1; } iInterlaceValue0 = iInterlaceValue1; iInterlaceValue1 = iInterlaceValue2; if (y < height) - iInterlaceValue2 = ((y1 - y2) * (y3 - y2) - - ((iEdgeDetect * (y1 - y3) * (y1 - y3)) >> 12))*10; + iInterlaceValue2 = ((y1 - y2) * (y3 - y2) - + ((iEdgeDetect * (y1 - y3) * (y1 - y3)) >> 12)) * 10; else - iInterlaceValue2 = 0; - - if (y > 0) { - if (iInterlaceValue0 + 2 * iInterlaceValue1 + iInterlaceValue2 > iThreshold) { - if (bBlend) { - *pdst1 = (unsigned char)((y0 + 2*y1 + y2) >> 2); - } else { - /* this method seems to work better than blending if the */ - /* quality is pretty bad and the half pics don't fit together */ - if ((y % 2)==1) { /* if odd simply copy the value */ - *pdst1 = *psrc1; - /**pdst1 = 0; // FIXME this is for adjusting an initial iThreshold */ - } else { /* even interpolate the even line (upper + lower)/2 */ - *pdst1 = (unsigned char)((y0 + y2) >> 1); - /**pdst1 = 0; // FIXME this is for adjusting an initial iThreshold */ - } - } - } else { - /* so we went below the treshold and therefore we don't have to */ - /* change anything */ - if (bShowDeinterlacedAreaOnly) { - /* this is for testing to see how we should tune the treshhold */ - /* and shows as the things that haven't change because the */ - /* threshhold was to low?? (or shows that everything is ok :-) */ - *pdst1 = 0; /* blank the point and so the interlac area */ - } else { - *pdst1 = *psrc1; - } - } - pdst1 = pdst1 + y_line; + iInterlaceValue2 = 0; + + if (y > 0) { + if (iInterlaceValue0 + 2 * iInterlaceValue1 + iInterlaceValue2 > + iThreshold) { + if (bBlend) { + *pdst1 = (unsigned char) ((y0 + 2 * y1 + y2) >> 2); + } else { + /* this method seems to work better than blending if the */ + /* quality is pretty bad and the half pics don't fit together */ + if ((y % 2) == 1) { /* if odd simply copy the value */ + *pdst1 = *psrc1; + /**pdst1 = 0; // FIXME this is for adjusting an initial iThreshold */ + } else { /* even interpolate the even line (upper + lower)/2 */ + *pdst1 = (unsigned char) ((y0 + y2) >> 1); + /**pdst1 = 0; // FIXME this is for adjusting an initial iThreshold */ + } + } + } else { + /* so we went below the treshold and therefore we don't have to */ + /* change anything */ + if (bShowDeinterlacedAreaOnly) { + /* this is for testing to see how we should tune the treshhold */ + /* and shows as the things that haven't change because the */ + /* threshhold was to low?? (or shows that everything is ok :-) */ + *pdst1 = 0; /* blank the point and so the interlac area */ + } else { + *pdst1 = *psrc1; + } + } + pdst1 = pdst1 + y_line; } } } @@ -310,17 +308,17 @@ gst_deinterlace_chain (GstPad *pad, GstData *_data) } static void -gst_deinterlace_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) +gst_deinterlace_set_property (GObject * object, guint prop_id, + const GValue * value, GParamSpec * pspec) { GstDeInterlace *filter; /* it's not null if we got it, but it might not be ours */ - g_return_if_fail(GST_IS_DEINTERLACE(object)); + g_return_if_fail (GST_IS_DEINTERLACE (object)); - filter = GST_DEINTERLACE(object); + filter = GST_DEINTERLACE (object); - switch (prop_id) - { + switch (prop_id) { case ARG_DI_ONLY: filter->show_deinterlaced_area_only = g_value_get_boolean (value); break; @@ -339,14 +337,15 @@ gst_deinterlace_set_property (GObject *object, guint prop_id, const GValue *valu } static void -gst_deinterlace_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) +gst_deinterlace_get_property (GObject * object, guint prop_id, GValue * value, + GParamSpec * pspec) { GstDeInterlace *filter; /* it's not null if we got it, but it might not be ours */ - g_return_if_fail(GST_IS_DEINTERLACE(object)); + g_return_if_fail (GST_IS_DEINTERLACE (object)); - filter = GST_DEINTERLACE(object); + filter = GST_DEINTERLACE (object); switch (prop_id) { case ARG_DI_ONLY: @@ -368,22 +367,16 @@ gst_deinterlace_get_property (GObject *object, guint prop_id, GValue *value, GPa } static gboolean -plugin_init (GstPlugin *plugin) +plugin_init (GstPlugin * plugin) { - if (!gst_element_register (plugin, "deinterlace", GST_RANK_NONE, gst_deinterlace_get_type())) + if (!gst_element_register (plugin, "deinterlace", GST_RANK_NONE, + gst_deinterlace_get_type ())) return FALSE; return TRUE; } -GST_PLUGIN_DEFINE ( - GST_VERSION_MAJOR, - GST_VERSION_MINOR, - "deinterlace", - "Deinterlace video", - plugin_init, - VERSION, - "LGPL", - GST_PACKAGE, - GST_ORIGIN -); +GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, + GST_VERSION_MINOR, + "deinterlace", + "Deinterlace video", plugin_init, VERSION, "LGPL", GST_PACKAGE, GST_ORIGIN); |