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author | Dave Robillard <dave@drobilla.net> | 2009-05-25 22:23:04 -0400 |
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committer | Dave Robillard <dave@drobilla.net> | 2009-05-25 22:23:04 -0400 |
commit | e9f9ffa0e5ca0844a499a106963888176b6a7372 (patch) | |
tree | b86653bbb9f9f19c5d6adf29198bf2b168813cfe /gst/deinterlace/gstdeinterlace.c | |
parent | 9e306663812d0af7d6889c1c314f2148e2dd40cf (diff) | |
parent | 023af351fba4b22db782b39f4aa8ae75b70cc10f (diff) | |
download | gst-plugins-bad-e9f9ffa0e5ca0844a499a106963888176b6a7372.tar.gz gst-plugins-bad-e9f9ffa0e5ca0844a499a106963888176b6a7372.tar.bz2 gst-plugins-bad-e9f9ffa0e5ca0844a499a106963888176b6a7372.zip |
Merge git://anongit.freedesktop.org/gstreamer/gst-plugins-bad into lv2
Diffstat (limited to 'gst/deinterlace/gstdeinterlace.c')
-rw-r--r-- | gst/deinterlace/gstdeinterlace.c | 514 |
1 files changed, 0 insertions, 514 deletions
diff --git a/gst/deinterlace/gstdeinterlace.c b/gst/deinterlace/gstdeinterlace.c deleted file mode 100644 index b2a25afe..00000000 --- a/gst/deinterlace/gstdeinterlace.c +++ /dev/null @@ -1,514 +0,0 @@ -/* GStreamer simple deinterlacing plugin - * Copyright (C) 1999 Erik Walthinsen <omega@cse.ogi.edu> - * Copyright (C) 2006-2008 Tim-Philipp Müller <tim centricular net> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ -/* based on the Area Based Deinterlacer (for RGB frames) */ -/* (a VirtualDub filter) from Gunnar Thalin <guth@home.se> */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <string.h> -#include "gstdeinterlace.h" -#include <gst/video/video.h> - -/** - * SECTION:element-deinterlace - * - * 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. - * - * <refsect2> - * <title>Example launch line</title> - * |[ - * gst-launch -v videotestsrc ! deinterlace ! ffmpegcolorspace ! xvimagesink - * ]| - * </refsect2> - */ - -GST_DEBUG_CATEGORY_STATIC (deinterlace_debug); -#define GST_CAT_DEFAULT deinterlace_debug - -#define DEFAULT_DI_AREA_ONLY FALSE -#define DEFAULT_NI_AREA_ONLY FALSE -#define DEFAULT_BLEND FALSE -#define DEFAULT_DEINTERLACE TRUE -#define DEFAULT_THRESHOLD 20 -#define DEFAULT_EDGE_DETECT 25 - -enum -{ - ARG_0, - ARG_DI_ONLY, - ARG_NI_ONLY, - ARG_BLEND, - ARG_THRESHOLD, - ARG_EDGE_DETECT, - ARG_DEINTERLACE -}; - -static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src", - GST_PAD_SRC, - GST_PAD_ALWAYS, - GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{ I420, Y42B }")) - ); - -static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink", - GST_PAD_SINK, - GST_PAD_ALWAYS, - GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{ I420, Y42B }")) - ); - -GST_BOILERPLATE (GstDeinterlace, gst_deinterlace, GstBaseTransform, - GST_TYPE_BASE_TRANSFORM); - -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 GstFlowReturn gst_deinterlace_transform_ip (GstBaseTransform * trans, - GstBuffer * buf); -static gboolean gst_deinterlace_stop (GstBaseTransform * trans); -static gboolean gst_deinterlace_set_caps (GstBaseTransform * trans, - GstCaps * incaps, GstCaps * outcaps); -static GstCaps *gst_deinterlace_transform_caps (GstBaseTransform * trans, - GstPadDirection direction, GstCaps * incaps); - -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 (&src_factory)); - gst_element_class_add_pad_template (element_class, - gst_static_pad_template_get (&sink_factory)); - - gst_element_class_set_details_simple (element_class, "Deinterlace", - "Filter/Effect/Video", "Deinterlace video", - "Wim Taymans <wim.taymans@gmail.com>"); -} - -static void -gst_deinterlace_class_init (GstDeinterlaceClass * klass) -{ - GObjectClass *gobject_class; - GstBaseTransformClass *basetransform_class; - - gobject_class = (GObjectClass *) klass; - basetransform_class = (GstBaseTransformClass *) 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", "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 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); - basetransform_class->transform_caps = - GST_DEBUG_FUNCPTR (gst_deinterlace_transform_caps); - basetransform_class->stop = GST_DEBUG_FUNCPTR (gst_deinterlace_stop); - basetransform_class->set_caps = GST_DEBUG_FUNCPTR (gst_deinterlace_set_caps); -} - -static void -gst_deinterlace_init (GstDeinterlace * filter, GstDeinterlaceClass * klass) -{ - filter->show_deinterlaced_area_only = DEFAULT_DI_AREA_ONLY; - filter->show_noninterlaced_area_only = DEFAULT_NI_AREA_ONLY; - filter->blend = DEFAULT_BLEND; - filter->deinterlace = DEFAULT_DEINTERLACE; - filter->threshold = DEFAULT_THRESHOLD; - filter->edge_detect = DEFAULT_EDGE_DETECT; - /*filter->threshold_blend = 0; */ - - filter->src = NULL; - filter->picsize = 0; -} - -static gboolean -gst_deinterlace_stop (GstBaseTransform * trans) -{ - GstDeinterlace *filter; - - filter = GST_DEINTERLACE (trans); - - g_free (filter->src); - filter->src = NULL; - filter->picsize = 0; - filter->width = 0; - filter->height = 0; - - return TRUE; -} - -static GstCaps * -gst_deinterlace_transform_caps (GstBaseTransform * trans, - GstPadDirection direction, GstCaps * incaps) -{ - return gst_caps_ref (incaps); -} - -static gboolean -gst_deinterlace_set_caps (GstBaseTransform * trans, GstCaps * incaps, - GstCaps * outcaps) -{ - GstDeinterlace *filter; - GstVideoFormat fmt; - GstStructure *s; - guint32 fourcc; - gint picsize, w, h; - - filter = GST_DEINTERLACE (trans); - - g_assert (gst_caps_is_equal_fixed (incaps, outcaps)); - - s = gst_caps_get_structure (incaps, 0); - if (!gst_structure_get_int (s, "width", &w) || - !gst_structure_get_int (s, "height", &h) || - !gst_structure_get_fourcc (s, "format", &fourcc)) { - return FALSE; - } - - filter->width = w; - filter->height = h; - filter->fourcc = fourcc; - - GST_DEBUG_OBJECT (filter, "width x height = %d x %d, fourcc: %" - GST_FOURCC_FORMAT, w, h, GST_FOURCC_ARGS (fourcc)); - - fmt = gst_video_format_from_fourcc (fourcc); - - filter->y_stride = gst_video_format_get_row_stride (fmt, 0, w); - filter->u_stride = gst_video_format_get_row_stride (fmt, 1, w); - filter->v_stride = gst_video_format_get_row_stride (fmt, 2, w); - - filter->uv_height = gst_video_format_get_component_height (fmt, 1, h); - - filter->y_off = gst_video_format_get_component_offset (fmt, 0, w, h); - filter->u_off = gst_video_format_get_component_offset (fmt, 1, w, h); - filter->v_off = gst_video_format_get_component_offset (fmt, 2, w, h); - - picsize = gst_video_format_get_size (fmt, w, h); - - if (filter->picsize != picsize) { - filter->picsize = picsize; - g_free (filter->src); /* free + alloc avoids memcpy */ - filter->src = g_malloc0 (filter->picsize); - GST_LOG_OBJECT (filter, "temp buffer size %d", filter->picsize); - } - - return TRUE; -} - -static GstFlowReturn -gst_deinterlace_transform_ip (GstBaseTransform * trans, GstBuffer * buf) -{ - GstDeinterlace *filter; - gboolean bShowDeinterlacedAreaOnly; - gboolean bShowNoninterlacedAreaOnly; - gint y0, y1, y2, y3; - guchar *psrc1, *pdst1, *yuvptr, *src; - gint iInterlaceValue0, iInterlaceValue1, iInterlaceValue2; - gint x, y, p; - gint y_line; - guchar *y_dst, *y_src; - guchar fill_value; - gboolean bBlend; - gboolean bDeinterlace; - gint iThreshold; - gint iEdgeDetect; - gint width, height; - - /* g_assert (gst_buffer_is_writable (buf)); */ - - filter = GST_DEINTERLACE (trans); - - GST_OBJECT_LOCK (filter); - bBlend = filter->blend; - bDeinterlace = filter->deinterlace; - iThreshold = filter->threshold; - iEdgeDetect = filter->edge_detect; - bShowDeinterlacedAreaOnly = filter->show_deinterlaced_area_only; - bShowNoninterlacedAreaOnly = filter->show_noninterlaced_area_only; - GST_OBJECT_UNLOCK (filter); - - src = filter->src; - yuvptr = GST_BUFFER_DATA (buf); - - memcpy (filter->src, yuvptr, filter->picsize); - - - iThreshold = iThreshold * iThreshold * 4; - /* We don't want an integer overflow in the interlace calculation. */ - if (iEdgeDetect > 180) - iEdgeDetect = 180; - iEdgeDetect = iEdgeDetect * iEdgeDetect; - - for (p = 0; p < 3; p++) { - switch (p) { - case 0: - y_dst = yuvptr + filter->y_off; /* dst y pointer */ - y_line = filter->y_stride; - y_src = src + filter->y_off; - width = filter->width; - height = filter->height; - fill_value = 0; - break; - case 1: - y_dst = yuvptr + filter->u_off; /* dst U pointer */ - y_line = filter->u_stride; - y_src = src + filter->u_off; - width = filter->width / 2; - height = filter->uv_height; - fill_value = 128; - break; - case 2: - y_dst = yuvptr + filter->v_off; /* dst V pointer */ - y_line = filter->v_stride; - y_src = src + filter->v_off; - width = filter->width / 2; - height = filter->uv_height; - fill_value = 128; - break; - default: - g_assert_not_reached (); - break; - } - - for (x = 0; x < width; x++) { - pdst1 = y_dst + x; - psrc1 = y_src + x; - iInterlaceValue1 = iInterlaceValue2 = 0; - - for (y = 0; y < height; y++, psrc1 += y_line, pdst1 += y_line) { - /* current line is 1 */ - y0 = y1 = y2 = y3 = *psrc1; - if (y > 0) - y0 = *(psrc1 - y_line); - if (y < (height - 1)) - y2 = *(psrc1 + y_line); - if (y < (height - 2)) - y3 = *(psrc1 + 2 * y_line); - - iInterlaceValue0 = iInterlaceValue1; - iInterlaceValue1 = iInterlaceValue2; - - if (y < height - 1) - iInterlaceValue2 = - (ABS (y1 - y2) * ABS (y3 - y2) - ((iEdgeDetect * (y1 - y3) * (y1 - - y3)) >> 12)) * 10; - else - iInterlaceValue2 = 0; - - if ((iInterlaceValue0 + 2 * iInterlaceValue1 + iInterlaceValue2 > - iThreshold) && (y > 0)) { - if (bShowNoninterlacedAreaOnly) { - *pdst1 = fill_value; /* blank the point and so the interlac area */ - } else { - if (bDeinterlace) { - 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; - } else { /* if even interpolate the line (upper + lower)/2 */ - *pdst1 = (unsigned char) ((y0 + y2) >> 1); - } - } - } else { - *pdst1 = *psrc1; - } - } - - } 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 */ - /* threshold was to low?? (or shows that everything is ok :-) */ - *pdst1 = fill_value; /* blank the point and so the non-interlac area */ - } else { - *pdst1 = *psrc1; - } - } - } - } - } - - return GST_FLOW_OK; -} - -static void -gst_deinterlace_set_property (GObject * object, guint prop_id, - const GValue * value, GParamSpec * pspec) -{ - GstDeinterlace *filter; - - filter = GST_DEINTERLACE (object); - - GST_OBJECT_LOCK (filter); - switch (prop_id) { - case ARG_DEINTERLACE: - filter->deinterlace = g_value_get_boolean (value); - break; - case ARG_DI_ONLY: - filter->show_deinterlaced_area_only = g_value_get_boolean (value); - break; - case ARG_NI_ONLY: - filter->show_noninterlaced_area_only = g_value_get_boolean (value); - break; - case ARG_BLEND: - filter->blend = g_value_get_boolean (value); - break; - case ARG_THRESHOLD: - filter->threshold = g_value_get_int (value); - break; - case ARG_EDGE_DETECT: - filter->edge_detect = g_value_get_int (value); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } - GST_OBJECT_UNLOCK (filter); -} - -static void -gst_deinterlace_get_property (GObject * object, guint prop_id, GValue * value, - GParamSpec * pspec) -{ - GstDeinterlace *filter; - - filter = GST_DEINTERLACE (object); - - GST_OBJECT_LOCK (filter); - switch (prop_id) { - case ARG_DEINTERLACE: - g_value_set_boolean (value, filter->deinterlace); - break; - case ARG_DI_ONLY: - g_value_set_boolean (value, filter->show_deinterlaced_area_only); - break; - case ARG_NI_ONLY: - g_value_set_boolean (value, filter->show_noninterlaced_area_only); - break; - case ARG_BLEND: - g_value_set_boolean (value, filter->blend); - break; - case ARG_THRESHOLD: - g_value_set_int (value, filter->threshold); - break; - case ARG_EDGE_DETECT: - g_value_set_int (value, filter->edge_detect); - break; - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } - GST_OBJECT_UNLOCK (filter); -} - -static gboolean -plugin_init (GstPlugin * plugin) -{ - GST_DEBUG_CATEGORY_INIT (deinterlace_debug, "deinterlace", 0, - "deinterlace element"); - - 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, - "gstinterlace", - "Deinterlace video", plugin_init, PACKAGE_VERSION, "LGPL", GST_PACKAGE_NAME, - GST_PACKAGE_ORIGIN); |