gstreamer/subprojects/gst-plugins-base/gst-libs/gst/gl/gstglupload.h
He Junyan ea35adc55f gl: upload: Implement the fixate_caps virtual function
We now prefer the 2D target than other targets when fixating src caps.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5468>
2023-10-18 19:56:30 +00:00

130 lines
4.3 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_UPLOAD_H__
#define __GST_GL_UPLOAD_H__
#include <gst/video/video.h>
#include <gst/gl/gstgl_fwd.h>
G_BEGIN_DECLS
GST_GL_API
GType gst_gl_upload_get_type (void);
#define GST_TYPE_GL_UPLOAD (gst_gl_upload_get_type())
#define GST_GL_UPLOAD(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GL_UPLOAD,GstGLUpload))
#define GST_GL_UPLOAD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GL_UPLOAD,GstGLUploadClass))
#define GST_IS_GL_UPLOAD(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GL_UPLOAD))
#define GST_IS_GL_UPLOAD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GL_UPLOAD))
#define GST_GL_UPLOAD_CAST(obj) ((GstGLUpload*)(obj))
/**
* GstGLUploadReturn:
* @GST_GL_UPLOAD_DONE: No further processing required
* @GST_GL_UPLOAD_ERROR: An unspecified error occurred
* @GST_GL_UPLOAD_UNSUPPORTED: The configuration is unsupported.
* @GST_GL_UPLOAD_RECONFIGURE: This element requires a reconfiguration.
* @GST_GL_UPLOAD_UNSHARED_GL_CONTEXT: private return value.
*/
typedef enum
{
GST_GL_UPLOAD_DONE = 1,
GST_GL_UPLOAD_ERROR = -1,
GST_GL_UPLOAD_UNSUPPORTED = -2,
GST_GL_UPLOAD_RECONFIGURE = -3,
GST_GL_UPLOAD_UNSHARED_GL_CONTEXT = -100,
} GstGLUploadReturn;
/**
* GstGLUpload
*
* Opaque #GstGLUpload object
*/
struct _GstGLUpload
{
GstObject parent;
GstGLContext *context;
/*< private >*/
GstGLUploadPrivate *priv;
gpointer _reserved[GST_PADDING];
};
/**
* GstGLUploadClass:
*
* The #GstGLUploadClass struct only contains private data
*/
struct _GstGLUploadClass
{
GstObjectClass object_class;
/*< private >*/
gpointer _padding[GST_PADDING];
};
GST_GL_API
GstCaps * gst_gl_upload_get_input_template_caps (void);
GST_GL_API
GstGLUpload * gst_gl_upload_new (GstGLContext * context);
GST_GL_API
void gst_gl_upload_set_context (GstGLUpload * upload,
GstGLContext * context);
GST_GL_API
GstCaps * gst_gl_upload_transform_caps (GstGLUpload * upload,
GstGLContext * context,
GstPadDirection direction,
GstCaps * caps,
GstCaps * filter);
GST_GL_API
gboolean gst_gl_upload_set_caps (GstGLUpload * upload,
GstCaps * in_caps,
GstCaps * out_caps);
GST_GL_API
void gst_gl_upload_get_caps (GstGLUpload * upload,
GstCaps ** in_caps,
GstCaps ** out_caps);
GST_GL_API
void gst_gl_upload_propose_allocation (GstGLUpload * upload,
GstQuery * decide_query,
GstQuery * query);
GST_GL_API
GstGLUploadReturn gst_gl_upload_perform_with_buffer (GstGLUpload * upload,
GstBuffer * buffer,
GstBuffer ** outbuf_ptr);
GST_GL_API
GstCaps * gst_gl_upload_fixate_caps (GstGLUpload * upload,
GstPadDirection direction,
GstCaps * caps,
GstCaps * othercaps);
G_END_DECLS
#endif /* __GST_GL_UPLOAD_H__ */