gstreamer/ext/gl/gstgldownloadelement.h
Matt Fischer 9f65c316e4 gldownload: Add dmabuf exporting
This patch adds code to gldownload to export the image as a
dmabuf if requested.  The element now exposes memory:DMABuf as
a cap feature, and if it is selected, the element exports the
texture to an EGL image and then a dmabuf. It also implements a
fallback to system memory download in case the exportation failed.

https://bugzilla.gnome.org/show_bug.cgi?id=776927
2017-12-02 14:49:39 -05:00

60 lines
2.1 KiB
C

/*
* GStreamer
* Copyright (C) 2012 Matthew Waters <ystree00@gmail.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_DOWNLOAD_ELEMENT_H__
#define __GST_GL_DOWNLOAD_ELEMENT_H__
#include <gst/video/video.h>
#include <gst/gstmemory.h>
#include <gst/gl/gl.h>
G_BEGIN_DECLS
GType gst_gl_download_element_get_type (void);
#define GST_TYPE_GL_DOWNLOAD_ELEMENT (gst_gl_download_element_get_type())
#define GST_GL_DOWNLOAD_ELEMENT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_DOWNLOAD_ELEMENT,GstGLDownloadElement))
#define GST_GL_DOWNLOAD_ELEMENT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GL_DISPLAY,GstGLDownloadElementClass))
#define GST_IS_GL_DOWNLOAD_ELEMENT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_DOWNLOAD_ELEMENT))
#define GST_IS_GL_DOWNLOAD_ELEMENT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GL_DOWNLOAD_ELEMENT))
#define GST_GL_DOWNLOAD_ELEMENT_CAST(obj) ((GstGLDownloadElement*)(obj))
typedef struct _GstGLDownloadElement GstGLDownloadElement;
typedef struct _GstGLDownloadElementClass GstGLDownloadElementClass;
struct _GstGLDownloadElement
{
/* <private> */
GstGLBaseFilter parent;
gboolean do_pbo_transfers;
GstAllocator * dmabuf_allocator;
gboolean add_videometa;
};
struct _GstGLDownloadElementClass
{
/* <private> */
GstGLBaseFilterClass object_class;
};
G_END_DECLS
#endif /* __GST_GL_DOWNLOAD_ELEMENT_H__ */