mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-24 09:10:36 +00:00
bayer: Add rgb2bayer element
Mostly for testing/completeness.
This commit is contained in:
David Schleef
parent
26e9df08b8
commit
5c1eb82b8a
4 changed files with 414 additions and 2 deletions
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@ -1,6 +1,10 @@
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plugin_LTLIBRARIES = libgstbayer.la
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libgstbayer_la_SOURCES = gstbayer.c gstbayer2rgb.c
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libgstbayer_la_SOURCES = \
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gstbayer.c \
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gstbayer2rgb.c \
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gstrgb2bayer.c \
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gstrgb2bayer.h
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libgstbayer_la_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) $(GST_BASE_CFLAGS) \
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$(GST_CFLAGS)
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libgstbayer_la_LIBADD = $(GST_PLUGINS_BASE_LIBS) -lgstvideo-$(GST_MAJORMINOR) \
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@ -23,15 +23,17 @@
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#include <gst/gst.h>
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#include <gst/base/gstbasetransform.h>
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GType gst_bayer2rgb_get_type (void);
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GType gst_rgb2bayer_get_type (void);
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static gboolean
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plugin_init (GstPlugin * plugin)
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{
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gst_element_register (plugin, "bayer2rgb", GST_RANK_NONE,
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gst_bayer2rgb_get_type ());
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gst_element_register (plugin, "rgb2bayer", GST_RANK_NONE,
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gst_rgb2bayer_get_type ());
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return TRUE;
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}
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353
gst/bayer/gstrgb2bayer.c
Normal file
353
gst/bayer/gstrgb2bayer.c
Normal file
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@ -0,0 +1,353 @@
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/* GStreamer
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* Copyright (C) 2010 David Schleef <ds@entropywave.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gst.h>
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#include <gst/base/gstbasetransform.h>
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#include <gst/video/video.h>
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#include "gstrgb2bayer.h"
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#define GST_CAT_DEFAULT gst_rgb2bayer_debug
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
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/* prototypes */
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static void gst_rgb2bayer_set_property (GObject * object,
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guint property_id, const GValue * value, GParamSpec * pspec);
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static void gst_rgb2bayer_get_property (GObject * object,
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guint property_id, GValue * value, GParamSpec * pspec);
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static void gst_rgb2bayer_dispose (GObject * object);
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static void gst_rgb2bayer_finalize (GObject * object);
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static GstCaps *gst_rgb2bayer_transform_caps (GstBaseTransform * trans,
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GstPadDirection direction, GstCaps * caps);
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static gboolean
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gst_rgb2bayer_get_unit_size (GstBaseTransform * trans, GstCaps * caps,
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guint * size);
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static gboolean
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gst_rgb2bayer_set_caps (GstBaseTransform * trans, GstCaps * incaps,
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GstCaps * outcaps);
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static gboolean gst_rgb2bayer_start (GstBaseTransform * trans);
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static gboolean gst_rgb2bayer_stop (GstBaseTransform * trans);
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static gboolean gst_rgb2bayer_event (GstBaseTransform * trans,
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GstEvent * event);
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static GstFlowReturn gst_rgb2bayer_transform (GstBaseTransform * trans,
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GstBuffer * inbuf, GstBuffer * outbuf);
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static gboolean gst_rgb2bayer_src_event (GstBaseTransform * trans,
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GstEvent * event);
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enum
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{
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PROP_0
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};
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/* pad templates */
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static GstStaticPadTemplate gst_rgb2bayer_sink_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_VIDEO_CAPS_ARGB)
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);
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#if 0
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/* do these later */
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static GstStaticPadTemplate gst_rgb2bayer_sink_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_VIDEO_CAPS_RGBx ";" GST_VIDEO_CAPS_xRGB ";"
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GST_VIDEO_CAPS_BGRx ";" GST_VIDEO_CAPS_xBGR ";"
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GST_VIDEO_CAPS_RGBA ";" GST_VIDEO_CAPS_ARGB ";"
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GST_VIDEO_CAPS_BGRA ";" GST_VIDEO_CAPS_ABGR)
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);
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#endif
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static GstStaticPadTemplate gst_rgb2bayer_src_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("video/x-raw-bayer,width=[1,MAX],height=[1,MAX],"
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"framerate=(fraction)[0/1,MAX]")
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);
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/* class initialization */
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#define DEBUG_INIT(bla) \
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GST_DEBUG_CATEGORY_INIT (gst_rgb2bayer_debug, "rgb2bayer", 0, "rgb2bayer element");
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GST_BOILERPLATE_FULL (GstRGB2Bayer, gst_rgb2bayer, GstBaseTransform,
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GST_TYPE_BASE_TRANSFORM, DEBUG_INIT);
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static void
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gst_rgb2bayer_base_init (gpointer g_class)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_rgb2bayer_src_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_rgb2bayer_sink_template));
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gst_element_class_set_details_simple (element_class,
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"RGB to Bayer converter",
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"Filter/Converter/Video",
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"Converts video/x-raw-rgb to video/x-raw-bayer",
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"David Schleef <ds@entropywave.com>");
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}
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static void
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gst_rgb2bayer_class_init (GstRGB2BayerClass * klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GstBaseTransformClass *base_transform_class =
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GST_BASE_TRANSFORM_CLASS (klass);
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gobject_class->set_property = gst_rgb2bayer_set_property;
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gobject_class->get_property = gst_rgb2bayer_get_property;
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gobject_class->dispose = gst_rgb2bayer_dispose;
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gobject_class->finalize = gst_rgb2bayer_finalize;
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base_transform_class->transform_caps =
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GST_DEBUG_FUNCPTR (gst_rgb2bayer_transform_caps);
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base_transform_class->get_unit_size =
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GST_DEBUG_FUNCPTR (gst_rgb2bayer_get_unit_size);
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base_transform_class->set_caps = GST_DEBUG_FUNCPTR (gst_rgb2bayer_set_caps);
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base_transform_class->start = GST_DEBUG_FUNCPTR (gst_rgb2bayer_start);
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base_transform_class->stop = GST_DEBUG_FUNCPTR (gst_rgb2bayer_stop);
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base_transform_class->event = GST_DEBUG_FUNCPTR (gst_rgb2bayer_event);
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base_transform_class->transform = GST_DEBUG_FUNCPTR (gst_rgb2bayer_transform);
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base_transform_class->src_event = GST_DEBUG_FUNCPTR (gst_rgb2bayer_src_event);
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}
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static void
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gst_rgb2bayer_init (GstRGB2Bayer * rgb2bayer,
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GstRGB2BayerClass * rgb2bayer_class)
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{
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}
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void
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gst_rgb2bayer_set_property (GObject * object, guint property_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstRGB2Bayer *rgb2bayer;
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g_return_if_fail (GST_IS_RGB_2_BAYER (object));
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rgb2bayer = GST_RGB_2_BAYER (object);
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switch (property_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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void
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gst_rgb2bayer_get_property (GObject * object, guint property_id,
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GValue * value, GParamSpec * pspec)
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{
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GstRGB2Bayer *rgb2bayer;
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g_return_if_fail (GST_IS_RGB_2_BAYER (object));
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rgb2bayer = GST_RGB_2_BAYER (object);
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switch (property_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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break;
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}
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}
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void
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gst_rgb2bayer_dispose (GObject * object)
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{
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GstRGB2Bayer *rgb2bayer;
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g_return_if_fail (GST_IS_RGB_2_BAYER (object));
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rgb2bayer = GST_RGB_2_BAYER (object);
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/* clean up as possible. may be called multiple times */
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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void
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gst_rgb2bayer_finalize (GObject * object)
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{
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GstRGB2Bayer *rgb2bayer;
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g_return_if_fail (GST_IS_RGB_2_BAYER (object));
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rgb2bayer = GST_RGB_2_BAYER (object);
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/* clean up object here */
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static GstCaps *
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gst_rgb2bayer_transform_caps (GstBaseTransform * trans,
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GstPadDirection direction, GstCaps * caps)
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{
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GstStructure *structure;
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GstStructure *new_structure;
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GstCaps *newcaps;
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const GValue *value;
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GST_DEBUG_OBJECT (trans, "transforming caps (from) %" GST_PTR_FORMAT, caps);
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structure = gst_caps_get_structure (caps, 0);
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if (direction == GST_PAD_SRC) {
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newcaps = gst_caps_new_simple ("video/x-raw-rgb", NULL);
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} else {
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newcaps = gst_caps_new_simple ("video/x-raw-bayer", NULL);
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}
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new_structure = gst_caps_get_structure (newcaps, 0);
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value = gst_structure_get_value (structure, "width");
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gst_structure_set_value (new_structure, "width", value);
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value = gst_structure_get_value (structure, "height");
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gst_structure_set_value (new_structure, "height", value);
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value = gst_structure_get_value (structure, "framerate");
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gst_structure_set_value (new_structure, "framerate", value);
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GST_DEBUG_OBJECT (trans, "transforming caps (into) %" GST_PTR_FORMAT,
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newcaps);
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return newcaps;
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}
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static gboolean
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gst_rgb2bayer_get_unit_size (GstBaseTransform * trans, GstCaps * caps,
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guint * size)
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{
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GstStructure *structure;
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int width;
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int height;
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int pixsize;
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const char *name;
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structure = gst_caps_get_structure (caps, 0);
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if (gst_structure_get_int (structure, "width", &width) &&
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gst_structure_get_int (structure, "height", &height)) {
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name = gst_structure_get_name (structure);
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/* Our name must be either video/x-raw-bayer video/x-raw-rgb */
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if (g_str_equal (name, "video/x-raw-bayer")) {
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*size = width * height;
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return TRUE;
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} else {
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/* For output, calculate according to format */
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if (gst_structure_get_int (structure, "bpp", &pixsize)) {
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*size = width * height * (pixsize / 8);
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return TRUE;
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}
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}
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}
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return FALSE;
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}
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static gboolean
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gst_rgb2bayer_set_caps (GstBaseTransform * trans, GstCaps * incaps,
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GstCaps * outcaps)
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{
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GstRGB2Bayer *rgb2bayer = GST_RGB_2_BAYER (trans);
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GstStructure *structure;
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GST_DEBUG ("in caps %" GST_PTR_FORMAT " out caps %" GST_PTR_FORMAT, incaps,
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outcaps);
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structure = gst_caps_get_structure (incaps, 0);
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gst_structure_get_int (structure, "width", &rgb2bayer->width);
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gst_structure_get_int (structure, "height", &rgb2bayer->height);
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return TRUE;
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}
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static gboolean
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gst_rgb2bayer_start (GstBaseTransform * trans)
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{
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return TRUE;
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}
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static gboolean
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gst_rgb2bayer_stop (GstBaseTransform * trans)
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{
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return TRUE;
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}
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static gboolean
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gst_rgb2bayer_event (GstBaseTransform * trans, GstEvent * event)
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{
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return TRUE;
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}
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static GstFlowReturn
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gst_rgb2bayer_transform (GstBaseTransform * trans, GstBuffer * inbuf,
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GstBuffer * outbuf)
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{
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GstRGB2Bayer *rgb2bayer = GST_RGB_2_BAYER (trans);
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guint8 *dest;
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guint8 *src;
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int i, j;
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int height = rgb2bayer->height;
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int width = rgb2bayer->width;
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dest = GST_BUFFER_DATA (outbuf);
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src = GST_BUFFER_DATA (inbuf);
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for (j = 0; j < height; j++) {
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guint8 *dest_line = dest + width * j;
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guint8 *src_line = src + width * 4 * j;
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for (i = 0; i < width; i++) {
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if ((i & 1) == 0 && (j & 1) == 0) {
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dest_line[i] = src_line[i * 4 + 3];
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} else if ((i & 1) == 1 && (j & 1) == 1) {
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dest_line[i] = src_line[i * 4 + 1];
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} else {
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dest_line[i] = src_line[i * 4 + 2];
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}
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}
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}
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return GST_FLOW_OK;
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}
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static gboolean
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gst_rgb2bayer_src_event (GstBaseTransform * trans, GstEvent * event)
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{
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return TRUE;
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}
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53
gst/bayer/gstrgb2bayer.h
Normal file
53
gst/bayer/gstrgb2bayer.h
Normal file
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@ -0,0 +1,53 @@
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/* GStreamer
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* Copyright (C) 2010 FIXME <fixme@example.com>
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*
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* This library is free software; you can redistribute it and/or
|
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* modify it under the terms of the GNU Library General Public
|
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* License as published by the Free Software Foundation; either
|
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* version 2 of the License, or (at your option) any later version.
|
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*
|
||||
* 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.
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*/
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#ifndef _GST_RGB_2_BAYER_H_
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#define _GST_RGB_2_BAYER_H_
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#include <gst/gst.h>
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#include <gst/base/gstbasetransform.h>
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G_BEGIN_DECLS
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#define GST_TYPE_RGB_2_BAYER (gst_rgb2bayer_get_type())
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#define GST_RGB_2_BAYER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RGB_2_BAYER,GstRGB2Bayer))
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#define GST_RGB_2_BAYER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RGB_2_BAYER,GstRGB2BayerClass))
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#define GST_IS_RGB_2_BAYER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RGB_2_BAYER))
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#define GST_IS_RGB_2_BAYER_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RGB_2_BAYER))
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typedef struct _GstRGB2Bayer GstRGB2Bayer;
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typedef struct _GstRGB2BayerClass GstRGB2BayerClass;
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struct _GstRGB2Bayer
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{
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GstBaseTransform base_rgb2bayer;
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int width, height;
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};
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struct _GstRGB2BayerClass
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{
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GstBaseTransformClass base_rgb2bayer_class;
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};
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GType gst_rgb2bayer_get_type (void);
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G_END_DECLS
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||||
#endif
|
||||
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Reference in a new issue