mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-18 15:51:11 +00:00
[516/906] add skeleton GstGLMeta
the GstVideoMeta _map/unmap functions still need implementing
This commit is contained in:
Matthew Waters
Tim-Philipp Müller
parent
6528aba8c9
commit
8527e1cd66
3 changed files with 214 additions and 0 deletions
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@ -11,6 +11,7 @@ EXTRA_DIST = \
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libgstgl_@GST_API_VERSION@_la_SOURCES = \
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gstgldisplay.c \
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gstglmemory.c \
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gstglmeta.c \
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gstglfilter.c \
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gstglmixer.c \
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gstglshader.c \
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@ -34,6 +35,7 @@ libgstgl_@GST_API_VERSION@include_HEADERS = \
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gstglwindow.h \
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gstgldisplay.h \
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gstglmemory.h \
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gstglmeta.h \
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gstgles2.h \
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gstglfilter.h \
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gstglmixer.h \
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136
gst-libs/gst/gl/gstglmeta.c
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136
gst-libs/gst/gl/gstglmeta.c
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@ -0,0 +1,136 @@
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/*
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* GStreamer
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* Copyright (C) 2012 Matthew Waters <ystreet00@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., 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/video/video.h>
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#include <gst/video/gstvideometa.h>
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#include "gstglmeta.h"
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/* GstVideoMeta map/unmap */
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gboolean
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gst_gl_meta_map (GstVideoMeta * meta, guint plane, GstMapInfo * info,
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gpointer * data, gint * stride, GstMapFlags flags)
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{
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return FALSE;
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}
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gboolean
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gst_gl_meta_unmap (GstVideoMeta * meta, guint plane, GstMapInfo * info)
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{
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return FALSE;
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}
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static void
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gst_gl_meta_init (GstGLMeta * gl_meta, gpointer params, GstBuffer * buffer)
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{
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gl_meta->buffer = buffer;
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}
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void
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gst_gl_meta_free (GstGLMeta * gl_meta, GstBuffer * buffer)
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{
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if (gl_meta->display) {
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g_object_unref (gl_meta->display);
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gl_meta->display = NULL;
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}
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}
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static gboolean
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gst_gl_meta_transform (GstBuffer * dest, GstMeta * meta,
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GstBuffer * buffer, GQuark type, gpointer data)
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{
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GstGLMeta *dmeta, *smeta;
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smeta = (GstGLMeta *) meta;
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if (GST_META_TRANSFORM_IS_COPY (type)) {
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GstMetaTransformCopy *copy = data;
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if (!copy->region) {
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/* only copy if the complete data is copied as well */
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dmeta =
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(GstGLMeta *) gst_buffer_add_meta (dest, GST_GL_META_INFO,
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smeta->display);
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dmeta->buffer = dest;
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dmeta->memory =
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(GstGLMemory *) gst_memory_copy (GST_MEMORY_CAST (smeta->memory), 0,
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-1);
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}
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}
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return TRUE;
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}
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GType
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gst_gl_meta_api_get_type (void)
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{
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static volatile GType type;
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static const gchar *tags[] = { "memory", NULL }; /* don't know what to set here */
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if (g_once_init_enter (&type)) {
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GType _type = gst_meta_api_type_register ("GstGLMetaAPI", tags);
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g_once_init_leave (&type, _type);
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}
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return type;
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}
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const GstMetaInfo *
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gst_gl_meta_get_info (void)
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{
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static const GstMetaInfo *gl_meta_info = NULL;
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if (gl_meta_info == NULL) {
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gl_meta_info =
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gst_meta_register (GST_GL_META_API_TYPE, "GstGLMeta",
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sizeof (GstGLMeta), (GstMetaInitFunction) gst_gl_meta_init,
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(GstMetaFreeFunction) gst_gl_meta_free,
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(GstMetaTransformFunction) gst_gl_meta_transform);
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}
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return gl_meta_info;
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}
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/**
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* gst_buffer_add_gl_meta:
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* @buffer: a #GstBuffer
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* @display: the #GstGLDisplay to use
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*
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* Creates and adds a #GstGLMeta to a @buffer.
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*
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* Returns: (transfer full): a newly created #GstGLMeta
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*/
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GstGLMeta *
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gst_buffer_add_gl_meta (GstBuffer * buffer, GstGLDisplay * display)
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{
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GstGLMeta *gl_meta;
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gl_meta = (GstGLMeta *) gst_buffer_add_meta (buffer, GST_GL_META_INFO, NULL);
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gl_meta->display = g_object_ref (display);
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g_assert (gst_buffer_n_memory (buffer) == 1);
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gl_meta->memory = (GstGLMemory *) gst_buffer_get_memory (buffer, 0);
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return gl_meta;
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}
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76
gst-libs/gst/gl/gstglmeta.h
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76
gst-libs/gst/gl/gstglmeta.h
Normal file
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@ -0,0 +1,76 @@
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/*
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* GStreame
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* Copyright (C) 2007 Matthew Waters <ystreet00@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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef _GST_GL_META_H_
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#define _GST_GL_META_H_
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include <gst/video/gstvideometa.h>
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#include "gstgldisplay.h"
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#include "gstglmemory.h"
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G_BEGIN_DECLS
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typedef struct _GstGLMeta GstGLMeta;
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GType gst_gl_meta_api_get_type (void);
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#define GST_GL_META_API_TYPE (gst_gl_meta_api_get_type())
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#define GST_GL_META_INFO (gst_gl_meta_get_info())
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const GstMetaInfo * gst_gl_meta_get_info (void);
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/**
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* GstGLMeta:
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* @meta: parent #GstMeta
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* @buffer: #GstBuffer this meta belongs to
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* @video_meta: the #GstVideoMeta associated with this meta
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* @display: the #GstGLDisplay
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* @texture_id: the GL texture associated with this meta
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*
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* Extra buffer metadata describing OpenGL objects
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*/
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struct _GstGLMeta {
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GstMeta meta;
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GstBuffer *buffer;
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GstGLDisplay *display;
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GstGLMemory *memory;
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};
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#ifndef OPENGL_ES2
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# define GST_GL_VIDEO_CAPS \
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GST_VIDEO_CAPS_MAKE ("{ RGB, RGBx, RGBA, BGR, BGRx, BGRA, xRGB, xBGR, ARGB, ABGR, I420, YV12, YUY2, UYVY, AYUV }")
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#else /* OPENGL_ES2 */
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# define GST_GL_VIDEO_CAPS \
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GST_VIDEO_CAPS_MAKE ("{ RGB, RGBx, RGBA, I420, YV12, YUY2, UYVY, AYUV }")
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#endif /* OPENGL_ES2 */
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#define gst_buffer_get_gl_meta(b) ((GstGLMeta*)gst_buffer_get_meta((b),GST_GL_META_API_TYPE))
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GstGLMeta * gst_buffer_add_gl_meta (GstBuffer * buffer, GstGLDisplay * display);
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gboolean gst_gl_meta_map (GstVideoMeta *meta, guint plane, GstMapInfo *info,
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gpointer *data, gint * stride, GstMapFlags flags);
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gboolean gst_gl_meta_unmap (GstVideoMeta *meta, guint plane, GstMapInfo *info);
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G_END_DECLS
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#endif /* _GST_GL_META_H_ */
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