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gl: add a new glupload element based on the glupload library object

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Matthew Waters 2015-02-11 23:29:01 +11:00 committed by Tim-Philipp Müller
parent 66b349f100
commit 6b6d26fd8f
4 changed files with 327 additions and 0 deletions
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2
ext/gl/Makefile.am
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@ -3,6 +3,7 @@ plugin_LTLIBRARIES = libgstopengl.la
libgstopengl_la_SOURCES = \
gstopengl.c \
gstglbasemixer.c \
gstgluploadelement.c \
gstglimagesink.c \
gstglfiltercube.c \
gstgleffects.c \
@ -18,6 +19,7 @@ libgstopengl_la_SOURCES = \
noinst_HEADERS = \
gstglbasemixer.h \
gstgluploadelement.h \
gstglimagesink.h \
gstglfiltercube.h \
gstgleffects.h \

250
ext/gl/gstgluploadelement.c Normal file
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@ -0,0 +1,250 @@
/*
* GStreamer
* Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <gst/gl/gl.h>
#include "gstgluploadelement.h"
#if GST_GL_HAVE_PLATFORM_EGL
#include <gst/gl/egl/gsteglimagememory.h>
#endif
#define USING_OPENGL(context) (gst_gl_context_check_gl_version (context, GST_GL_API_OPENGL, 1, 0))
#define USING_OPENGL3(context) (gst_gl_context_check_gl_version (context, GST_GL_API_OPENGL3, 3, 1))
#define USING_GLES(context) (gst_gl_context_check_gl_version (context, GST_GL_API_GLES, 1, 0))
#define USING_GLES2(context) (gst_gl_context_check_gl_version (context, GST_GL_API_GLES2, 2, 0))
#define USING_GLES3(context) (gst_gl_context_check_gl_version (context, GST_GL_API_GLES2, 3, 0))
GST_DEBUG_CATEGORY_STATIC (gst_gl_upload_element_debug);
#define GST_CAT_DEFAULT gst_gl_upload_element_debug
#define gst_gl_upload_element_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstGLUploadElement, gst_gl_upload_element,
GST_TYPE_GL_BASE_FILTER,
GST_DEBUG_CATEGORY_INIT (gst_gl_upload_element_debug, "gluploadelement", 0,
"glupload Element");
);
static void gst_gl_upload_element_finalize (GObject * object);
static gboolean gst_gl_upload_element_get_unit_size (GstBaseTransform * trans,
GstCaps * caps, gsize * size);
static gboolean gst_gl_upload_element_query (GstBaseTransform * bt,
GstPadDirection direction, GstQuery * query);
static GstCaps *_gst_gl_upload_element_transform_caps (GstBaseTransform * bt,
GstPadDirection direction, GstCaps * caps, GstCaps * filter);
static gboolean _gst_gl_upload_element_set_caps (GstBaseTransform * bt,
GstCaps * in_caps, GstCaps * out_caps);
static gboolean _gst_gl_upload_element_propose_allocation (GstBaseTransform *
bt, GstQuery * decide_query, GstQuery * query);
static gboolean _gst_gl_upload_element_decide_allocation (GstBaseTransform *
trans, GstQuery * query);
static GstFlowReturn
gst_gl_upload_element_prepare_output_buffer (GstBaseTransform * bt,
GstBuffer * buffer, GstBuffer ** outbuf);
static GstFlowReturn gst_gl_upload_element_transform (GstBaseTransform * bt,
GstBuffer * buffer, GstBuffer * outbuf);
static GstStaticPadTemplate gst_gl_upload_element_src_pad_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw(ANY)"));
static GstStaticPadTemplate gst_gl_upload_element_sink_pad_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/x-raw(ANY)"));
static void
gst_gl_upload_element_class_init (GstGLUploadElementClass * klass)
{
GstBaseTransformClass *bt_class = GST_BASE_TRANSFORM_CLASS (klass);
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
bt_class->query = gst_gl_upload_element_query;
bt_class->transform_caps = _gst_gl_upload_element_transform_caps;
bt_class->set_caps = _gst_gl_upload_element_set_caps;
bt_class->propose_allocation = _gst_gl_upload_element_propose_allocation;
bt_class->decide_allocation = _gst_gl_upload_element_decide_allocation;
bt_class->get_unit_size = gst_gl_upload_element_get_unit_size;
bt_class->prepare_output_buffer = gst_gl_upload_element_prepare_output_buffer;
bt_class->transform = gst_gl_upload_element_transform;
bt_class->passthrough_on_same_caps = TRUE;
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_gl_upload_element_src_pad_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_gl_upload_element_sink_pad_template));
gst_element_class_set_metadata (element_class,
"OpenGL uploader", "Filter/Video",
"Uploads data into OpenGL", "Matthew Waters <matthew@centricular.com>");
G_OBJECT_CLASS (klass)->finalize = gst_gl_upload_element_finalize;
}
static void
gst_gl_upload_element_init (GstGLUploadElement * upload)
{
gst_base_transform_set_prefer_passthrough (GST_BASE_TRANSFORM (upload), TRUE);
}
static void
gst_gl_upload_element_finalize (GObject * object)
{
GstGLUploadElement *upload = GST_GL_UPLOAD_ELEMENT (object);
if (upload->upload) {
gst_object_unref (upload->upload);
upload->upload = NULL;
}
gst_caps_replace (&upload->in_caps, NULL);
gst_caps_replace (&upload->out_caps, NULL);
G_OBJECT_CLASS (gst_gl_upload_element_parent_class)->finalize (object);
}
static gboolean
gst_gl_upload_element_get_unit_size (GstBaseTransform * trans, GstCaps * caps,
gsize * size)
{
gboolean ret = FALSE;
GstVideoInfo info;
ret = gst_video_info_from_caps (&info, caps);
if (ret)
*size = GST_VIDEO_INFO_SIZE (&info);
return TRUE;
}
static GstCaps *
_gst_gl_upload_element_transform_caps (GstBaseTransform * bt,
GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
GstGLContext *context = GST_GL_BASE_FILTER (bt)->context;
return gst_gl_upload_transform_caps (context, direction, caps, filter);
}
static gboolean
_gst_gl_upload_element_propose_allocation (GstBaseTransform * bt,
GstQuery * decide_query, GstQuery * query)
{
GstGLUploadElement *upload = GST_GL_UPLOAD_ELEMENT (bt);
gst_gl_upload_propose_allocation (upload->upload, decide_query, query);
return TRUE;
}
static gboolean
_gst_gl_upload_element_decide_allocation (GstBaseTransform * trans,
GstQuery * query)
{
GstGLUploadElement *upload = GST_GL_UPLOAD_ELEMENT (trans);
GstGLContext *context;
gboolean ret;
ret =
GST_BASE_TRANSFORM_CLASS
(gst_gl_upload_element_parent_class)->decide_allocation (trans, query);
if (!ret)
return FALSE;
context = GST_GL_BASE_FILTER (trans)->context;
if (!upload->upload)
upload->upload = gst_gl_upload_new (context);
return gst_gl_upload_set_caps (upload->upload, upload->in_caps,
upload->out_caps);
}
static gboolean
_gst_gl_upload_element_set_caps (GstBaseTransform * bt, GstCaps * in_caps,
GstCaps * out_caps)
{
GstGLUploadElement *upload = GST_GL_UPLOAD_ELEMENT (bt);
gst_caps_replace (&upload->in_caps, in_caps);
gst_caps_replace (&upload->out_caps, out_caps);
if (upload->upload)
return gst_gl_upload_set_caps (upload->upload, in_caps, out_caps);
return TRUE;
}
static gboolean
gst_gl_upload_element_query (GstBaseTransform * bt, GstPadDirection direction,
GstQuery * query)
{
GstGLUploadElement *upload = GST_GL_UPLOAD_ELEMENT (bt);
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_DRAIN:
if (upload->upload)
gst_gl_upload_release_buffer (upload->upload);
default:
break;
}
return GST_BASE_TRANSFORM_CLASS (parent_class)->query (bt, direction, query);
}
GstFlowReturn
gst_gl_upload_element_prepare_output_buffer (GstBaseTransform * bt,
GstBuffer * buffer, GstBuffer ** outbuf)
{
GstGLUploadElement *upload = GST_GL_UPLOAD_ELEMENT (bt);
GstGLUploadReturn ret;
if (gst_base_transform_is_passthrough (bt)) {
*outbuf = buffer;
return GST_FLOW_OK;
}
if (!upload->upload)
return GST_FLOW_NOT_NEGOTIATED;
ret = gst_gl_upload_perform_with_buffer (upload->upload, buffer, outbuf);
if (*outbuf)
gst_buffer_copy_into (*outbuf, buffer,
GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_TIMESTAMPS, 0, -1);
return ret == GST_GL_UPLOAD_DONE ? GST_FLOW_OK : GST_FLOW_ERROR;
}
static GstFlowReturn
gst_gl_upload_element_transform (GstBaseTransform * bt, GstBuffer * buffer,
GstBuffer * outbuf)
{
return GST_FLOW_OK;
}

69
ext/gl/gstgluploadelement.h Normal file
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@ -0,0 +1,69 @@
/*
* GStreamer
* Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_GL_UPLOAD_ELEMENT_H__
#define __GST_GL_UPLOAD_ELEMENT_H__
#include <gst/video/video.h>
#include <gst/gl/gstgl_fwd.h>
G_BEGIN_DECLS
GType gst_gl_upload_element_get_type (void);
#define GST_TYPE_GL_UPLOAD_ELEMENT (gst_gl_upload_element_get_type())
#define GST_GL_UPLOAD_ELEMENT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_UPLOAD_ELEMENT,GstGLUploadElement))
#define GST_GL_UPLOAD_ELEMENT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GL_UPLOAD_ELEMENT,GstGLUploadElementClass))
#define GST_IS_GL_UPLOAD_ELEMENT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_UPLOAD_ELEMENT))
#define GST_IS_GL_UPLOAD_ELEMENT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GL_UPLOAD_ELEMENT))
#define GST_GL_UPLOAD_ELEMENT_CAST(obj) ((GstGLUploadElement*)(obj))
typedef struct _GstGLUploadElement GstGLUploadElement;
typedef struct _GstGLUploadElementClass GstGLUploadElementClass;
typedef struct _GstGLUploadElementPrivate GstGLUploadElementPrivate;
/**
* GstGLUploadElement
*
* Opaque #GstGLUploadElement object
*/
struct _GstGLUploadElement
{
/* <private> */
GstGLBaseFilter parent;
GstGLUpload *upload;
GstCaps *in_caps;
GstCaps *out_caps;
};
/**
* GstGLUploadElementClass:
*
* The #GstGLUploadElementClass struct only contains private data
*/
struct _GstGLUploadElementClass
{
GstGLBaseFilterClass object_class;
};
G_END_DECLS
#endif /* __GST_GL_UPLOAD_ELEMENT_H__ */

6
ext/gl/gstopengl.c
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@ -44,6 +44,7 @@
#endif
#include "gstglimagesink.h"
#include "gstgluploadelement.h"
#include "gstglfiltercube.h"
#include "gstgleffects.h"
@ -112,6 +113,11 @@ plugin_init (GstPlugin * plugin)
return FALSE;
}
if (!gst_element_register (plugin, "glupload",
GST_RANK_SECONDARY, GST_TYPE_GL_UPLOAD_ELEMENT)) {
return FALSE;
}
if (!gst_element_register (plugin, "glfiltercube",
GST_RANK_NONE, GST_TYPE_GL_FILTER_CUBE)) {
return FALSE;