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bayerutils: add new plugin with bayer2gray, to do caps conversion

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This is a convenience function to avoid using a capssetter when we want to treat
Bayer as gray. In the future we can add properties to balance each element of the
CFA.

Note there's a bug with the in-place transform, so currently a memcpy is being used.
This commit is contained in:
Joshua M. Doe 2020-02-27 10:11:53 -05:00
parent 37aaea1022
commit 8ff872e634
4 changed files with 480 additions and 0 deletions
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1
gst/CMakeLists.txt
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@ -2,6 +2,7 @@ if (OPENCV_FOUND)
add_subdirectory (sensorfx)
endif (OPENCV_FOUND)
add_subdirectory (bayerutils)
add_subdirectory (extractcolor)
add_subdirectory (klv)
add_subdirectory (misb)

27
gst/bayerutils/CMakeLists.txt Normal file
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@ -0,0 +1,27 @@
set (SOURCES
gstbayer2gray.c
)
set (HEADERS
gstbayer2gray.h)
include_directories (AFTER
)
set (libname libgstbayerutils)
add_library (${libname} MODULE
${SOURCES}
${HEADERS})
target_link_libraries (${libname}
${GLIB2_LIBRARIES}
${GOBJECT_LIBRARIES}
${GSTREAMER_LIBRARY}
${GSTREAMER_BASE_LIBRARY}
${GSTREAMER_VIDEO_LIBRARY})
set (pdbfile "${CMAKE_CURRENT_BINARY_DIR}/\${CMAKE_INSTALL_CONFIG_NAME}/${libname}.pdb")
install (FILES ${pdbfile} DESTINATION lib/gstreamer-1.0 COMPONENT pdb)
install(TARGETS ${libname}
LIBRARY DESTINATION lib/gstreamer-1.0)

374
gst/bayerutils/gstbayer2gray.c Normal file
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@ -0,0 +1,374 @@
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <2003> David Schleef <ds@schleef.org>
* Copyright (C) 2003 Arwed v. Merkatz <v.merkatz@gmx.net>
* Copyright (C) 2006 Mark Nauwelaerts <manauw@skynet.be>
* Copyright (C) 2020 United States Government, Joshua M. Doe <oss@nvl.army.mil>
*
* 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.
*/
/**
* SECTION:element-bayer2gray
*
* Convert grayscale video from one bpp/depth combination to another.
*
* <refsect2>
* <title>Example launch line</title>
* |[
* gst-launch videotestsrc ! bayer2gray ! ffmpegcolorspace ! autovideosink
* ]|
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstbayer2gray.h"
#include <gst/video/video.h>
/* GstBayer2Gray signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
PROP_0,
PROP_LAST
};
#define VIDEO_CAPS_MAKE_BAYER8(format) \
"video/x-bayer, " \
"format = (string) " format ", " \
"width = " GST_VIDEO_SIZE_RANGE ", " \
"height = " GST_VIDEO_SIZE_RANGE ", " \
"framerate = " GST_VIDEO_FPS_RANGE
#define VIDEO_CAPS_MAKE_BAYER16(format) \
"video/x-bayer, " \
"format = (string) " format ", " \
"endianness = (int) {1234, 4321}, " \
"bpp = (int) {16, 14, 12, 10}, " \
"width = " GST_VIDEO_SIZE_RANGE ", " \
"height = " GST_VIDEO_SIZE_RANGE ", " \
"framerate = " GST_VIDEO_FPS_RANGE
#define VIDEO_CAPS_BAYER8 VIDEO_CAPS_MAKE_BAYER8("{bggr,grbg,gbrg,rggb}")
#define VIDEO_CAPS_BAYER16 VIDEO_CAPS_MAKE_BAYER16("{bggr16,grbg16,gbrg16,rggb16}")
/* the capabilities of the inputs and outputs */
static GstStaticPadTemplate gst_bayer2gray_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (VIDEO_CAPS_BAYER8 ";" VIDEO_CAPS_BAYER16)
);
static GstStaticPadTemplate gst_bayer2gray_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE ("{GRAY16_LE, GRAY16_BE, GRAY8 }"))
);
/* GObject vmethod declarations */
static void gst_bayer2gray_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_bayer2gray_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void gst_bayer2gray_dispose (GObject * object);
/* GstBaseTransform vmethod declarations */
static GstCaps *gst_bayer2gray_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * filter_caps);
static gboolean gst_bayer2gray_set_caps (GstBaseTransform * btrans,
GstCaps * incaps, GstCaps * outcaps);
static GstFlowReturn gst_bayer2gray_transform (GstBaseTransform * btrans,
GstBuffer * inbuf, GstBuffer * outbuf);
static GstFlowReturn gst_bayer2gray_transform_ip (GstBaseTransform * btrans,
GstBuffer * buf);
/* GstBayer2Gray method declarations */
static void gst_bayer2gray_reset (GstBayer2Gray * filter);
/* setup debug */
GST_DEBUG_CATEGORY_STATIC (bayer2gray_debug);
#define GST_CAT_DEFAULT bayer2gray_debug
G_DEFINE_TYPE (GstBayer2Gray, gst_bayer2gray, GST_TYPE_BASE_TRANSFORM);
/************************************************************************/
/* GObject vmethod implementations */
/************************************************************************/
/**
* gst_bayer2gray_dispose:
* @object: #GObject.
*
*/
static void
gst_bayer2gray_dispose (GObject * object)
{
GstBayer2Gray *bayer2gray = GST_BAYER2GRAY (object);
GST_DEBUG ("dispose");
gst_bayer2gray_reset (bayer2gray);
/* chain up to the parent class */
G_OBJECT_CLASS (gst_bayer2gray_parent_class)->dispose (object);
}
/**
* gst_bayer2gray_class_init:
* @object: #GstBayer2GrayClass.
*
*/
static void
gst_bayer2gray_class_init (GstBayer2GrayClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass);
GstBaseTransformClass *gstbasetransform_class =
GST_BASE_TRANSFORM_CLASS (klass);
GST_DEBUG_CATEGORY_INIT (bayer2gray_debug, "bayer2gray", 0,
"Bayer to Gray Filter");
GST_DEBUG ("class init");
/* Register GObject vmethods */
gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_bayer2gray_dispose);
gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_bayer2gray_set_property);
gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_bayer2gray_get_property);
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&gst_bayer2gray_sink_template));
gst_element_class_add_pad_template (gstelement_class,
gst_static_pad_template_get (&gst_bayer2gray_src_template));
gst_element_class_set_static_metadata (gstelement_class,
"Bayer as gray", "Filter/Effect/Video",
"Converts Bayer caps to gray caps", "Joshua M. Doe <oss@nvl.army.mil>");
/* Register GstBaseTransform vmethods */
gstbasetransform_class->transform_caps =
GST_DEBUG_FUNCPTR (gst_bayer2gray_transform_caps);
gstbasetransform_class->set_caps =
GST_DEBUG_FUNCPTR (gst_bayer2gray_set_caps);
gstbasetransform_class->transform =
GST_DEBUG_FUNCPTR (gst_bayer2gray_transform);
gstbasetransform_class->transform_ip =
GST_DEBUG_FUNCPTR (gst_bayer2gray_transform_ip);
}
static void
gst_bayer2gray_init (GstBayer2Gray * filt)
{
GST_DEBUG_OBJECT (filt, "init class instance");
/* FIXME: fix in-place transform */
gst_base_transform_set_in_place (GST_BASE_TRANSFORM (filt), FALSE);
gst_bayer2gray_reset (filt);
}
static void
gst_bayer2gray_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstBayer2Gray *filt = GST_BAYER2GRAY (object);
GST_DEBUG_OBJECT (filt, "setting property %s", pspec->name);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_bayer2gray_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstBayer2Gray *filt = GST_BAYER2GRAY (object);
GST_DEBUG_OBJECT (filt, "getting property %s", pspec->name);
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
GstCaps *
gst_bayer2gray_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps, GstCaps * filter_caps)
{
GstBayer2Gray *filt = GST_BAYER2GRAY (trans);
GstCaps *normalized_caps, *other_caps;
GstCaps *bayer8_caps, *bayer16_caps, *gray8_caps, *gray16_caps;
guint i, n;
GST_LOG_OBJECT (filt, "transforming caps from %" GST_PTR_FORMAT, caps);
other_caps = gst_caps_new_empty ();
normalized_caps = gst_caps_normalize (gst_caps_ref (caps));
gray8_caps = gst_caps_from_string (GST_VIDEO_CAPS_MAKE ("GRAY8"));
gray16_caps =
gst_caps_from_string (GST_VIDEO_CAPS_MAKE ("{ GRAY16_LE, GRAY16_BE }"));
bayer8_caps = gst_caps_from_string (VIDEO_CAPS_BAYER8);
bayer16_caps = gst_caps_from_string (VIDEO_CAPS_BAYER16);
n = gst_caps_get_size (normalized_caps);
for (i = 0; i < n; ++i) {
GstCaps *c = gst_caps_copy_nth (normalized_caps, i);
GstStructure *s, *s_other;
const GstCaps *tgt_caps = NULL;
if (i > 0 && gst_caps_is_subset (other_caps, c))
continue;
if (direction == GST_PAD_SRC) {
/* we're on gray side, return bayer caps */
if (gst_caps_is_subset (c, gray8_caps)) {
tgt_caps = bayer8_caps;
} else {
tgt_caps = bayer16_caps;
}
} else {
/* we're on bayer side, return gray caps */
if (gst_caps_is_subset (c, bayer8_caps)) {
tgt_caps = gray8_caps;
} else {
tgt_caps = gray16_caps;
}
}
s = gst_caps_get_structure (c, 0);
s_other = gst_caps_get_structure (tgt_caps, 0);
gst_structure_set_name (s, gst_structure_get_name (s_other));
gst_structure_set_value (s, "format", gst_structure_get_value (s_other,
"format"));
gst_caps_merge (other_caps, c);
}
gst_caps_unref (gray8_caps);
gst_caps_unref (gray16_caps);
gst_caps_unref (bayer8_caps);
gst_caps_unref (bayer16_caps);
gst_caps_unref (normalized_caps);
if (!gst_caps_is_empty (other_caps) && filter_caps) {
GstCaps *tmp = gst_caps_intersect_full (filter_caps, other_caps,
GST_CAPS_INTERSECT_FIRST);
gst_caps_replace (&other_caps, tmp);
gst_caps_unref (tmp);
}
GST_LOG_OBJECT (filt, "transformed caps to %" GST_PTR_FORMAT, other_caps);
return other_caps;
}
static gboolean
gst_bayer2gray_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
GstCaps * outcaps)
{
GstBayer2Gray *filt = GST_BAYER2GRAY (btrans);
gboolean res = TRUE;
GstVideoInfo vinfo;
GST_DEBUG_OBJECT (filt,
"set_caps: in '%" GST_PTR_FORMAT "' out '%" GST_PTR_FORMAT "'", incaps,
outcaps);
gst_video_info_from_caps (&filt->vinfo, outcaps);
return res;
}
static GstFlowReturn
gst_bayer2gray_transform (GstBaseTransform * btrans,
GstBuffer * inbuf, GstBuffer * outbuf)
{
GstBayer2Gray *filt = GST_BAYER2GRAY (btrans);
GstMapInfo minfo_in, minfo_out;
GST_LOG_OBJECT (filt, "Doing non-inplace transform, copying data (FIX THIS)");
gst_buffer_map (inbuf, &minfo_in, GST_MAP_READ);
gst_buffer_map (outbuf, &minfo_out, GST_MAP_WRITE);
memcpy (minfo_out.data, minfo_in.data, minfo_in.size);
gst_buffer_unmap (inbuf, &minfo_in);
gst_buffer_unmap (outbuf, &minfo_out);
return GST_FLOW_OK;
}
/* FIXME: inplace transform doesn't work now due to buffer meta issue with
videoconvert, or really at least all elements using videofilter base
class */
static GstFlowReturn
gst_bayer2gray_transform_ip (GstBaseTransform * btrans, GstBuffer * buf)
{
GstBayer2Gray *filt = GST_BAYER2GRAY (btrans);
GST_LOG_OBJECT (filt, "in-place transform, doing nothing");
gst_buffer_add_video_meta (buf, GST_VIDEO_FRAME_FLAG_NONE,
filt->vinfo.finfo->format, filt->vinfo.width, filt->vinfo.height);
GST_ERROR ("%d,%d,%d", filt->vinfo.finfo->format, filt->vinfo.width,
filt->vinfo.height);
return GST_FLOW_OK;
}
static void
gst_bayer2gray_reset (GstBayer2Gray * bayer2gray)
{
}
/* Register filters that make up the gstgl plugin */
static gboolean
plugin_init (GstPlugin * plugin)
{
GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "bayer2gray", 0, "bayer2gray");
GST_DEBUG ("plugin_init");
GST_CAT_INFO (GST_CAT_DEFAULT, "registering bayer2gray element");
if (!gst_element_register (plugin, "bayer2gray", GST_RANK_NONE,
GST_TYPE_BAYER2GRAY)) {
return FALSE;
}
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
bayerutils,
"Plugins for working with Bayer video",
plugin_init, GST_PACKAGE_VERSION, GST_PACKAGE_LICENSE, GST_PACKAGE_NAME,
GST_PACKAGE_ORIGIN);

78
gst/bayerutils/gstbayer2gray.h Normal file
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@ -0,0 +1,78 @@
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <2003> David Schleef <ds@schleef.org>
* Copyright (C) 2003 Arwed v. Merkatz <v.merkatz@gmx.net>
* Copyright (C) 2006 Mark Nauwelaerts <manauw@skynet.be>
* Copyright (C) 2020 United States Government, Joshua M. Doe <oss@nvl.army.mil>
*
* 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.
*/
#ifndef __GST_BAYER2GRAY_H__
#define __GST_BAYER2GRAY_H__
#include <gst/video/gstvideofilter.h>
#include <gst/video/video.h>
G_BEGIN_DECLS
#define GST_TYPE_BAYER2GRAY \
(gst_bayer2gray_get_type())
#define GST_BAYER2GRAY(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BAYER2GRAY,GstBayer2Gray))
#define GST_BAYER2GRAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BAYER2GRAY,GstBayer2GrayClass))
#define GST_IS_BAYER2GRAY(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BAYER2GRAY))
#define GST_IS_BAYER2GRAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BAYER2GRAY))
typedef struct _GstBayer2Gray GstBayer2Gray;
typedef struct _GstBayer2GrayClass GstBayer2GrayClass;
/**
* GstBayer2Gray:
* @element: the parent element.
*
*
* The opaque GstBayer2Gray data structure.
*/
struct _GstBayer2Gray
{
GstBaseTransform element;
/* format */
GstVideoInfo vinfo;
gint width;
gint height;
gint depth;
gint bpp;
gint fps_n;
gint fps_d;
};
struct _GstBayer2GrayClass
{
GstBaseTransformClass parent_class;
};
GType gst_bayer2gray_get_type(void);
G_END_DECLS
#endif /* __GST_BAYER2GRAY_H__ */