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gl libs: Add glviewconvert helper object

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Add API for a helper object that can convert between different
stereoscopic video representations, and later do filtering
of multiple view streams.

https://bugzilla.gnome.org/show_bug.cgi?id=611157
This commit is contained in:
Jan Schmidt 2015-05-30 02:21:43 +10:00 committed by Tim-Philipp Müller
parent 5276b7ccbf
commit 7b583526e9
5 changed files with 2101 additions and 1 deletions
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4
gst-libs/gst/gl/Makefile.am
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@ -27,7 +27,8 @@ libgstgl_@GST_API_VERSION@_la_SOURCES = \
gstglfeature.c \
gstglutils.c \
gstglframebuffer.c \
gstglsyncmeta.c
gstglsyncmeta.c \
gstglviewconvert.c
libgstgl_@GST_API_VERSION@includedir = $(includedir)/gstreamer-@GST_API_VERSION@/gst/gl
libgstgl_@GST_API_VERSION@include_HEADERS = \
@ -50,6 +51,7 @@ libgstgl_@GST_API_VERSION@include_HEADERS = \
gstglutils.h \
gstglframebuffer.h \
gstglsyncmeta.h \
gstglviewconvert.h \
gstgl_fwd.h \
gl.h

1
gst-libs/gst/gl/gl.h
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@ -44,6 +44,7 @@
#include <gst/gl/gstglbufferpool.h>
#include <gst/gl/gstglframebuffer.h>
#include <gst/gl/gstglbasefilter.h>
#include <gst/gl/gstglviewconvert.h>
#include <gst/gl/gstglfilter.h>
#include <gst/gl/gstglshadervariables.h>
#include <gst/gl/gstglsyncmeta.h>

4
gst-libs/gst/gl/gstgl_fwd.h
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@ -74,6 +74,10 @@ typedef struct _GstGLBaseFilterPrivate GstGLBaseFilterPrivate;
typedef struct _GstGLFilter GstGLFilter;
typedef struct _GstGLFilterClass GstGLFilterClass;
typedef struct _GstGLViewConvert GstGLViewConvert;
typedef struct _GstGLViewConvertClass GstGLViewConvertClass;
typedef struct _GstGLViewConvertPrivate GstGLViewConvertPrivate;
G_END_DECLS
#endif /* __GST_GL_FWD_H__ */

1995
gst-libs/gst/gl/gstglviewconvert.c Normal file
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98
gst-libs/gst/gl/gstglviewconvert.h Normal file
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@ -0,0 +1,98 @@
/*
* GStreamer
* Copyright (C) 2014 Jan Schmidt <jan@centricular.com>
* 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_VIEW_CONVERT_H_
#define _GST_GL_VIEW_CONVERT_H_
#include <gst/gl/gl.h>
G_BEGIN_DECLS
#define GST_TYPE_GL_VIEW_CONVERT (gst_gl_view_convert_get_type())
#define GST_GL_VIEW_CONVERT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_VIEW_CONVERT,GstGLViewConvert))
#define GST_IS_GL_VIEW_CONVERT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_VIEW_CONVERT))
#define GST_GL_VIEW_CONVERT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_GL_VIEW_CONVERT,GstGLViewConvertClass))
#define GST_IS_GL_VIEW_CONVERT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_GL_VIEW_CONVERT))
#define GST_GL_VIEW_CONVERT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_GL_VIEW_CONVERT,GstGLViewConvertClass))
#define GST_TYPE_GL_STEREO_DOWNMIX_MODE_TYPE gst_gl_stereo_downmix_mode_get_type()
GType gst_gl_stereo_downmix_mode_get_type (void);
enum _GstGLStereoDownmix {
GST_GL_STEREO_DOWNMIX_ANAGLYPH_GREEN_MAGENTA_DUBOIS,
GST_GL_STEREO_DOWNMIX_ANAGLYPH_RED_CYAN_DUBOIS,
GST_GL_STEREO_DOWNMIX_ANAGLYPH_AMBER_BLUE_DUBOIS,
};
typedef enum _GstGLStereoDownmix GstGLStereoDownmix;
struct _GstGLViewConvert
{
GstObject object;
GstGLContext *context;
GstGLShader *shader;
GstVideoMultiviewMode input_mode_override;
GstVideoMultiviewFlags input_flags_override;
GstVideoMultiviewMode output_mode_override;
GstVideoMultiviewFlags output_flags_override;
GstGLStereoDownmix downmix_mode;
GstVideoInfo in_info;
GstVideoInfo out_info;
gboolean initted;
gboolean reconfigure;
GLuint fbo;
GLuint depth_buffer;
GstGLViewConvertPrivate *priv;
};
struct _GstGLViewConvertClass
{
GstObjectClass object_class;
};
GType gst_gl_view_convert_get_type (void);
GstGLViewConvert * gst_gl_view_convert_new (void);
gboolean gst_gl_view_convert_set_format (GstGLViewConvert *viewconvert, GstVideoInfo *in_info,
GstVideoInfo *out_info);
gboolean gst_gl_view_convert_set_caps (GstGLViewConvert * viewconvert, GstCaps * in_caps, GstCaps * out_caps);
GstCaps * gst_gl_view_convert_transform_caps (GstGLViewConvert * viewconvert,
GstPadDirection direction, GstCaps * caps, GstCaps * filter);
GstCaps * gst_gl_view_convert_fixate_caps (GstGLViewConvert *viewconvert,
GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
GstFlowReturn gst_gl_view_convert_submit_input_buffer (GstGLViewConvert *viewconvert,
gboolean is_discont, GstBuffer * input);
GstFlowReturn gst_gl_view_convert_get_output (GstGLViewConvert *viewconvert,
GstBuffer ** outbuf_ptr);
GstBuffer * gst_gl_view_convert_perform (GstGLViewConvert * viewconvert, GstBuffer *inbuf);
void gst_gl_view_convert_reset (GstGLViewConvert * viewconvert);
void gst_gl_view_convert_set_context (GstGLViewConvert *viewconvert, GstGLContext * context);
G_END_DECLS
#endif /* _GST_GL_VIEW_CONVERT_H_ */