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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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gl: add a new glcolorconvert element based on the glcolorconvert library object
This commit is contained in:
Matthew Waters
parent
0c800027ba
commit
3514600bf3
4 changed files with 272 additions and 0 deletions
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@ -4,6 +4,7 @@ libgstopengl_la_SOURCES = \
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gstopengl.c \
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gstglbasemixer.c \
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gstgluploadelement.c \
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gstglcolorconvertelement.c \
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gstglimagesink.c \
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gstglfiltercube.c \
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gstgleffects.c \
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@ -20,6 +21,7 @@ libgstopengl_la_SOURCES = \
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noinst_HEADERS = \
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gstglbasemixer.h \
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gstgluploadelement.h \
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gstglcolorconvertelement.h \
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gstglimagesink.h \
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gstglfiltercube.h \
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gstgleffects.h \
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205
ext/gl/gstglcolorconvertelement.c
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205
ext/gl/gstglcolorconvertelement.c
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@ -0,0 +1,205 @@
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/*
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* GStreamer
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* Copyright (C) 2012-2014 Matthew Waters <ystree00@gmail.com>
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* Copyright (C) 2015 Matthew Waters <matthew@centricular.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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, 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/gl/gl.h>
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#include "gstglcolorconvertelement.h"
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GST_DEBUG_CATEGORY_STATIC (gst_gl_color_convert_element_debug);
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#define GST_CAT_DEFAULT gst_gl_color_convert_element_debug
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G_DEFINE_TYPE_WITH_CODE (GstGLColorConvertElement, gst_gl_color_convert_element,
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GST_TYPE_GL_BASE_FILTER,
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GST_DEBUG_CATEGORY_INIT (gst_gl_color_convert_element_debug,
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"glconvertelement", 0, "convert");
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);
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static void gst_gl_color_convert_element_finalize (GObject * object);
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static gboolean gst_gl_color_convert_element_set_caps (GstBaseTransform * bt,
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GstCaps * in_caps, GstCaps * out_caps);
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static GstCaps *gst_gl_color_convert_element_transform_caps (GstBaseTransform *
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bt, GstPadDirection direction, GstCaps * caps, GstCaps * filter);
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static gboolean gst_gl_color_convert_element_get_unit_size (GstBaseTransform *
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trans, GstCaps * caps, gsize * size);
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static gboolean gst_gl_color_convert_element_decide_allocation (GstBaseTransform
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* trans, GstQuery * query);
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static GstFlowReturn
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gst_gl_color_convert_element_prepare_output_buffer (GstBaseTransform * bt,
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GstBuffer * inbuf, GstBuffer ** outbuf);
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static GstFlowReturn gst_gl_color_convert_element_transform (GstBaseTransform *
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bt, GstBuffer * inbuf, GstBuffer * outbuf);
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static GstStaticPadTemplate gst_gl_color_convert_element_src_pad_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 (GST_GL_COLOR_CONVERT_VIDEO_CAPS));
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static GstStaticPadTemplate gst_gl_color_convert_element_sink_pad_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_GL_COLOR_CONVERT_VIDEO_CAPS));
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static void
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gst_gl_color_convert_element_class_init (GstGLColorConvertElementClass * klass)
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{
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GstBaseTransformClass *bt_class = GST_BASE_TRANSFORM_CLASS (klass);
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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bt_class->transform_caps = gst_gl_color_convert_element_transform_caps;
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bt_class->set_caps = gst_gl_color_convert_element_set_caps;
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bt_class->get_unit_size = gst_gl_color_convert_element_get_unit_size;
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bt_class->decide_allocation = gst_gl_color_convert_element_decide_allocation;
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bt_class->prepare_output_buffer =
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gst_gl_color_convert_element_prepare_output_buffer;
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bt_class->transform = gst_gl_color_convert_element_transform;
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bt_class->passthrough_on_same_caps = TRUE;
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get
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(&gst_gl_color_convert_element_src_pad_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get
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(&gst_gl_color_convert_element_sink_pad_template));
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gst_element_class_set_metadata (element_class,
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"OpenGL color converter", "Filter/Converter/Video",
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"Converts between color spaces using OpenGL shaders",
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"Matthew Waters <matthew@centricular.com>");
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G_OBJECT_CLASS (klass)->finalize = gst_gl_color_convert_element_finalize;
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}
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static void
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gst_gl_color_convert_element_init (GstGLColorConvertElement * convert)
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{
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gst_base_transform_set_prefer_passthrough (GST_BASE_TRANSFORM (convert),
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TRUE);
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}
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static void
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gst_gl_color_convert_element_finalize (GObject * object)
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{
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GstGLColorConvertElement *convert = GST_GL_COLOR_CONVERT_ELEMENT (object);
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gst_caps_replace (&convert->in_caps, NULL);
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gst_caps_replace (&convert->out_caps, NULL);
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G_OBJECT_CLASS (gst_gl_color_convert_element_parent_class)->finalize (object);
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}
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static gboolean
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gst_gl_color_convert_element_set_caps (GstBaseTransform * bt,
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GstCaps * in_caps, GstCaps * out_caps)
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{
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GstGLColorConvertElement *convert = GST_GL_COLOR_CONVERT_ELEMENT (bt);
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gst_caps_replace (&convert->in_caps, in_caps);
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gst_caps_replace (&convert->out_caps, out_caps);
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if (convert->convert)
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gst_gl_color_convert_set_caps (convert->convert, in_caps, out_caps);
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return TRUE;
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}
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static GstCaps *
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gst_gl_color_convert_element_transform_caps (GstBaseTransform * bt,
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GstPadDirection direction, GstCaps * caps, GstCaps * filter)
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{
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GstGLContext *context = GST_GL_BASE_FILTER (bt)->context;
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return gst_gl_color_convert_transform_caps (context, direction, caps, filter);
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}
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static gboolean
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gst_gl_color_convert_element_get_unit_size (GstBaseTransform * trans,
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GstCaps * caps, gsize * size)
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{
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gboolean ret = FALSE;
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GstVideoInfo info;
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ret = gst_video_info_from_caps (&info, caps);
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if (ret)
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*size = GST_VIDEO_INFO_SIZE (&info);
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return TRUE;
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}
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static gboolean
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gst_gl_color_convert_element_decide_allocation (GstBaseTransform * trans,
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GstQuery * query)
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{
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GstGLColorConvertElement *convert = GST_GL_COLOR_CONVERT_ELEMENT (trans);
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GstGLContext *context;
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/* get gl context */
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if (!GST_BASE_TRANSFORM_CLASS
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(gst_gl_color_convert_element_parent_class)->decide_allocation (trans,
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query))
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return FALSE;
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context = GST_GL_BASE_FILTER (trans)->context;
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if (!convert->convert)
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convert->convert = gst_gl_color_convert_new (context);
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if (!gst_gl_color_convert_set_caps (convert->convert, convert->in_caps,
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convert->out_caps))
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return FALSE;
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return TRUE;
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}
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static GstFlowReturn
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gst_gl_color_convert_element_prepare_output_buffer (GstBaseTransform * bt,
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GstBuffer * inbuf, GstBuffer ** outbuf)
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{
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GstGLColorConvertElement *convert = GST_GL_COLOR_CONVERT_ELEMENT (bt);
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if (gst_base_transform_is_passthrough (bt)) {
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*outbuf = inbuf;
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return GST_FLOW_OK;
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}
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if (!convert->convert)
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return GST_FLOW_NOT_NEGOTIATED;
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*outbuf = gst_gl_color_convert_perform (convert->convert, inbuf);
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if (*outbuf)
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gst_buffer_copy_into (*outbuf, inbuf,
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GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_TIMESTAMPS, 0, -1);
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return GST_FLOW_OK;
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}
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static GstFlowReturn
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gst_gl_color_convert_element_transform (GstBaseTransform * bt,
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GstBuffer * inbuf, GstBuffer * outbuf)
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{
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return GST_FLOW_OK;
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}
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59
ext/gl/gstglcolorconvertelement.h
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59
ext/gl/gstglcolorconvertelement.h
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@ -0,0 +1,59 @@
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/*
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* GStreamer
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* Copyright (C) 2012 Matthew Waters <ystree00@gmail.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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_GL_COLOR_CONVERT_ELEMENT_H__
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#define __GST_GL_COLOR_CONVERT_ELEMENT_H__
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#include <gst/video/video.h>
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#include <gst/gstmemory.h>
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#include <gst/gl/gstgl_fwd.h>
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G_BEGIN_DECLS
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GType gst_gl_color_convert_element_get_type (void);
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#define GST_TYPE_GL_COLOR_CONVERT_ELEMENT (gst_gl_color_convert_element_get_type())
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#define GST_GL_COLOR_CONVERT_ELEMENT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_COLOR_CONVERT_ELEMENT,GstGLColorConvertElement))
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#define GST_GL_COLOR_CONVERT_ELEMENT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GL_DISPLAY,GstGLColorConvertElementClass))
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#define GST_IS_GL_COLOR_CONVERT_ELEMENT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_COLOR_CONVERT_ELEMENT))
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#define GST_IS_GL_COLOR_CONVERT_ELEMENT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GL_COLOR_CONVERT_ELEMENT))
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#define GST_GL_COLOR_CONVERT_ELEMENT_CAST(obj) ((GstGLColorConvertElement*)(obj))
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typedef struct _GstGLColorConvertElement GstGLColorConvertElement;
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typedef struct _GstGLColorConvertElementClass GstGLColorConvertElementClass;
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typedef struct _GstGLColorConvertElementPrivate GstGLColorConvertElementPrivate;
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struct _GstGLColorConvertElement
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{
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GstGLBaseFilter parent;
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GstGLColorConvert *convert;
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GstCaps *in_caps;
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GstCaps *out_caps;
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};
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struct _GstGLColorConvertElementClass
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{
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GstGLBaseFilterClass object_class;
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};
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G_END_DECLS
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#endif /* __GST_GL_COLOR_CONVERT_ELEMENT_H__ */
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@ -45,6 +45,7 @@
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#include "gstglimagesink.h"
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#include "gstgluploadelement.h"
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#include "gstglcolorconvertelement.h"
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#include "gstglfiltercube.h"
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#include "gstgleffects.h"
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@ -118,6 +119,11 @@ plugin_init (GstPlugin * plugin)
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return FALSE;
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}
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if (!gst_element_register (plugin, "glcolorconvert",
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GST_RANK_SECONDARY, GST_TYPE_GL_COLOR_CONVERT_ELEMENT)) {
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return FALSE;
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}
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if (!gst_element_register (plugin, "glfiltercube",
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GST_RANK_NONE, GST_TYPE_GL_FILTER_CUBE)) {
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return FALSE;
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