gstreamer/ext/gdk_pixbuf/gstgdkanimation.h
Benjamin Otte 2f56fff195 upgrades to the pixbuf loader:
Original commit message from CVS:
upgrades to the pixbuf loader:
- use /proc/self/fd/ to get our own handles to the given files (thanks for the hint David)
- use seeking when we lag too far behind
- try to seek 2 minutes into movies to get the static picture
2003-11-24 22:18:07 +00:00

117 lines
3.9 KiB
C

/*
* Copyright (C) 2003 Benjamin Otte <in7y118@public.uni-hamburg.de>
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_LOADER_H__
#define __GST_LOADER_H__
#include <gst/gst.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <gdk-pixbuf/gdk-pixbuf-animation.h>
#include <gdk-pixbuf/gdk-pixbuf-io.h>
#include <stdio.h>
G_BEGIN_DECLS
/* how many bytes we need to have available before we dare to start a new iteration */
#define GST_GDK_BUFFER_SIZE (102400)
/* how far behind we need to be before we attempt to seek */
#define GST_GDK_MAX_DELAY_TO_SEEK (GST_SECOND / 4)
#define GST_TYPE_GDK_ANIMATION (gst_gdk_animation_get_type())
#define GST_GDK_ANIMATION(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GDK_ANIMATION,GstGdkAnimation))
#define GST_GDK_ANIMATION_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GDK_ANIMATION,GstGdkAnimation))
#define GST_IS_GDK_ANIMATION(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GDK_ANIMATION))
#define GST_IS_GDK_ANIMATION_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GDK_ANIMATION))
typedef struct _GstGdkAnimation GstGdkAnimation;
typedef struct _GstGdkAnimationClass GstGdkAnimationClass;
typedef struct _GstGdkAnimationIter GstGdkAnimationIter;
typedef struct _GstGdkAnimationIterClass GstGdkAnimationIterClass;
struct _GstGdkAnimation
{
GdkPixbufAnimation parent;
/* name of temporary buffer file */
gchar * temp_location;
/* file descriptor to temporary file or 0 if we're done writing */
int temp_fd;
/* size of image */
gint width;
gint height;
gint bpp;
/* static image we use */
GdkPixbuf * pixbuf;
};
struct _GstGdkAnimationClass
{
GdkPixbufAnimationClass parent_class;
};
GType gst_gdk_animation_get_type (void);
GstGdkAnimation * gst_gdk_animation_new (GError **error);
gboolean gst_gdk_animation_add_data (GstGdkAnimation * ani,
const guint8 * data,
guint size);
void gst_gdk_animation_done_adding (GstGdkAnimation * ani);
#define GST_TYPE_GDK_ANIMATION_ITER (gst_gdk_animation_iter_get_type ())
#define GST_GDK_ANIMATION_ITER(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GST_TYPE_GDK_ANIMATION_ITER, GstGdkAnimationIter))
#define GST_IS_GDK_ANIMATION_ITER(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GST_TYPE_GDK_ANIMATION_ITER))
#define GST_GDK_ANIMATION_ITER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_GDK_ANIMATION_ITER, GstGdkAnimationIterClass))
#define GST_IS_GDK_ANIMATION_ITER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_GDK_ANIMATION_ITER))
#define GST_GDK_ANIMATION_ITER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_GDK_ANIMATION_ITER, GstGdkAnimationIterClass))
struct _GstGdkAnimationIter {
GdkPixbufAnimationIter parent;
/* our animation */
GstGdkAnimation * ani;
/* start timeval */
GTimeVal start;
/* timestamp of last buffer */
GstClockTime last_timestamp;
/* pipeline we're using */
GstElement * pipeline;
gboolean eos;
gboolean just_seeked;
/* current image and the buffers containing the data */
GdkPixbuf * pixbuf;
GQueue * buffers;
};
struct _GstGdkAnimationIterClass {
GdkPixbufAnimationIterClass parent_class;
};
GType gst_gdk_animation_iter_get_type (void) G_GNUC_CONST;
G_END_DECLS
#endif /* __GST_GDK_ANIMATION_H__ */