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gaudieffects: port gaussblur to 0.11
This commit is contained in:
Luis de Bethencourt
parent
f1220e95b5
commit
151b010bc9
2 changed files with 61 additions and 42 deletions
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@ -1,6 +1,7 @@
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/*
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* GStreamer
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* Copyright (C) <2010> Jan Schmidt <thaytan@noraisin.net>
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* Copyright (C) <2012> Luis de Bethencourt <luis@debethencourt.com>
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*
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* Chromium - burning chrome video effect.
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* Based on Pete Warden's FreeFrame plugin with the same name.
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@ -58,7 +59,8 @@
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*/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#include <config.h>
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#include <string.h>
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#endif
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#include <math.h>
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@ -82,12 +84,12 @@ GST_DEBUG_CATEGORY_STATIC (gst_gauss_blur_debug);
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#define GST_CAT_DEFAULT gst_gauss_blur_debug
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#if G_BYTE_ORDER == G_LITTLE_ENDIAN
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#define CAPS_STR_RGB GST_VIDEO_CAPS_BGRx ";" GST_VIDEO_CAPS_RGBx
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#define CAPS_STR_RGB GST_VIDEO_CAPS_MAKE ("{ BGRx, RGBx }")
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#else
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#define CAPS_STR_RGB GST_VIDEO_CAPS_xRGB ";" GST_VIDEO_CAPS_xBGR
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#define CAPS_STR_RGB GST_VIDEO_CAPS_MAKE ("{ xBGR, xRGB }")
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#endif
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#define CAPS_STR GST_VIDEO_CAPS_YUV("AYUV")
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#define CAPS_STR GST_VIDEO_CAPS_MAKE ("AYUV")
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/* The capabilities of the inputs and outputs. */
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static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
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@ -114,33 +116,28 @@ static gboolean make_gaussian_kernel (GaussBlur * gb, float sigma);
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static void gaussian_smooth (GaussBlur * gb, guint8 * image,
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guint8 * out_image);
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GST_BOILERPLATE (GaussBlur, gauss_blur, GstVideoFilter, GST_TYPE_VIDEO_FILTER);
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G_DEFINE_TYPE (GaussBlur, gauss_blur, GST_TYPE_VIDEO_FILTER);
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#define DEFAULT_SIGMA 1.2
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static void
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gauss_blur_base_init (gpointer gclass)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (gclass);
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gst_element_class_set_details_simple (element_class,
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"GaussBlur",
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"Filter/Effect/Video",
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"Perform Gaussian blur/sharpen on a video",
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"Jan Schmidt <thaytan@noraisin.net>");
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&src_factory));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&sink_factory));
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}
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static void
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gauss_blur_class_init (GaussBlurClass * klass)
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{
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GObjectClass *object_class = (GObjectClass *) klass;
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GstElementClass *gstelement_class = (GstElementClass *) klass;
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GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
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gst_element_class_set_details_simple (gstelement_class,
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"GaussBlur",
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"Filter/Effect/Video",
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"Perform Gaussian blur/sharpen on a video",
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"Jan Schmidt <thaytan@noraisin.net>");
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&src_factory));
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&sink_factory));
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object_class->set_property = gauss_blur_set_property;
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object_class->get_property = gauss_blur_get_property;
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@ -156,7 +153,7 @@ gauss_blur_class_init (GaussBlurClass * klass)
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}
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static void
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gauss_blur_init (GaussBlur * gb, GaussBlurClass * gclass)
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gauss_blur_init (GaussBlur * gb)
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{
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gb->sigma = DEFAULT_SIGMA;
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gb->cur_sigma = -1.0;
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@ -192,18 +189,23 @@ gauss_blur_set_caps (GstBaseTransform * btrans,
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GstCaps * incaps, GstCaps * outcaps)
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{
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GaussBlur *gb = GAUSS_BLUR (btrans);
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GstVideoInfo info;
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GstStructure *structure;
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GstVideoFormat format;
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guint32 n_elems;
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structure = gst_caps_get_structure (incaps, 0);
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g_return_val_if_fail (structure != NULL, FALSE);
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if (!gst_video_format_parse_caps (incaps, &format, &gb->width, &gb->height))
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return FALSE;
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if (!gst_video_info_from_caps (&info, incaps))
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goto invalid_caps;
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gb->info = info;
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gb->width = GST_VIDEO_INFO_WIDTH (&info);
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gb->height = GST_VIDEO_INFO_HEIGHT (&info);
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/* get stride */
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gb->stride = gst_video_format_get_row_stride (format, 0, gb->width);
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gb->stride = GST_VIDEO_INFO_PLANE_STRIDE (&info, 0);
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n_elems = gb->stride * gb->height;
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@ -211,36 +213,45 @@ gauss_blur_set_caps (GstBaseTransform * btrans,
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//gb->smoothedim = g_malloc (sizeof (guint16) * n_elems);
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return TRUE;
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/* ERROR */
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invalid_caps:
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{
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GST_DEBUG_OBJECT (btrans, "could not parse caps");
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return FALSE;
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}
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}
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static GstFlowReturn
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gauss_blur_process_frame (GstBaseTransform * btrans,
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GstBuffer * in_buf, GstBuffer * out_buf)
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{
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GaussBlur *gb = GAUSS_BLUR (btrans);
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GaussBlur *filter = GAUSS_BLUR (btrans);
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GstClockTime timestamp;
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gint64 stream_time;
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gfloat sigma;
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GstMapInfo imap, omap;
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/* GstController: update the properties */
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timestamp = GST_BUFFER_TIMESTAMP (in_buf);
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stream_time =
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gst_segment_to_stream_time (&btrans->segment, GST_FORMAT_TIME, timestamp);
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if (GST_CLOCK_TIME_IS_VALID (stream_time))
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gst_object_sync_values (GST_OBJECT (gb), stream_time);
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gst_object_sync_values (GST_OBJECT (filter), stream_time);
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GST_OBJECT_LOCK (gb);
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sigma = gb->sigma;
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GST_OBJECT_UNLOCK (gb);
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GST_OBJECT_LOCK (filter);
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sigma = filter->sigma;
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GST_OBJECT_UNLOCK (filter);
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if (gb->cur_sigma != sigma) {
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g_free (gb->kernel);
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gb->kernel = NULL;
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g_free (gb->kernel_sum);
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gb->kernel_sum = NULL;
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gb->cur_sigma = sigma;
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if (filter->cur_sigma != sigma) {
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g_free (filter->kernel);
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filter->kernel = NULL;
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g_free (filter->kernel_sum);
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filter->kernel_sum = NULL;
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filter->cur_sigma = sigma;
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}
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if (gb->kernel == NULL && !make_gaussian_kernel (gb, gb->cur_sigma)) {
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if (filter->kernel == NULL &&
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!make_gaussian_kernel (filter, filter->cur_sigma)) {
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GST_ELEMENT_ERROR (btrans, RESOURCE, NO_SPACE_LEFT, ("Out of memory"),
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("Failed to allocation gaussian kernel"));
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return GST_FLOW_ERROR;
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@ -250,9 +261,14 @@ gauss_blur_process_frame (GstBaseTransform * btrans,
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* Perform gaussian smoothing on the image using the input standard
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* deviation.
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*/
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memcpy (GST_BUFFER_DATA (out_buf), GST_BUFFER_DATA (in_buf),
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gb->height * gb->stride);
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gaussian_smooth (gb, GST_BUFFER_DATA (in_buf), GST_BUFFER_DATA (out_buf));
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gst_buffer_map (out_buf, &omap, GST_MAP_WRITE);
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gst_buffer_map (in_buf, &imap, GST_MAP_READ);
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memcpy (omap.data, imap.data, filter->height * filter->stride);
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gaussian_smooth (filter, imap.data, omap.data);
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gst_buffer_unmap (in_buf, &imap);
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gst_buffer_unmap (out_buf, &omap);
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return GST_FLOW_OK;
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}
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@ -1,6 +1,7 @@
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/*
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* GStreamer
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* Copyright (C) <2010> Jan Schmidt <thaytan@noraisin.net>
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* Copyright (C) <2012> Luis de Bethencourt <luis@debethencourt.com>
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*
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* Chromium - burning chrome video effect.
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* Based on Pete Warden's FreeFrame plugin with the same name.
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@ -68,6 +69,8 @@ struct GaussBlur
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float cur_sigma, sigma;
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int windowsize;
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GstVideoInfo info;
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float *kernel;
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float *kernel_sum;
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float *tempim;
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