mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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2f56fff195
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
117 lines
3.9 KiB
C
117 lines
3.9 KiB
C
/*
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* Copyright (C) 2003 Benjamin Otte <in7y118@public.uni-hamburg.de>
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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_LOADER_H__
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#define __GST_LOADER_H__
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#include <gst/gst.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <gdk-pixbuf/gdk-pixbuf-animation.h>
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#include <gdk-pixbuf/gdk-pixbuf-io.h>
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#include <stdio.h>
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G_BEGIN_DECLS
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/* how many bytes we need to have available before we dare to start a new iteration */
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#define GST_GDK_BUFFER_SIZE (102400)
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/* how far behind we need to be before we attempt to seek */
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#define GST_GDK_MAX_DELAY_TO_SEEK (GST_SECOND / 4)
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#define GST_TYPE_GDK_ANIMATION (gst_gdk_animation_get_type())
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#define GST_GDK_ANIMATION(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GDK_ANIMATION,GstGdkAnimation))
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#define GST_GDK_ANIMATION_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GDK_ANIMATION,GstGdkAnimation))
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#define GST_IS_GDK_ANIMATION(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GDK_ANIMATION))
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#define GST_IS_GDK_ANIMATION_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GDK_ANIMATION))
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typedef struct _GstGdkAnimation GstGdkAnimation;
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typedef struct _GstGdkAnimationClass GstGdkAnimationClass;
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typedef struct _GstGdkAnimationIter GstGdkAnimationIter;
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typedef struct _GstGdkAnimationIterClass GstGdkAnimationIterClass;
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struct _GstGdkAnimation
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{
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GdkPixbufAnimation parent;
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/* name of temporary buffer file */
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gchar * temp_location;
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/* file descriptor to temporary file or 0 if we're done writing */
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int temp_fd;
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/* size of image */
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gint width;
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gint height;
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gint bpp;
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/* static image we use */
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GdkPixbuf * pixbuf;
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};
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struct _GstGdkAnimationClass
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{
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GdkPixbufAnimationClass parent_class;
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};
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GType gst_gdk_animation_get_type (void);
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GstGdkAnimation * gst_gdk_animation_new (GError **error);
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gboolean gst_gdk_animation_add_data (GstGdkAnimation * ani,
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const guint8 * data,
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guint size);
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void gst_gdk_animation_done_adding (GstGdkAnimation * ani);
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#define GST_TYPE_GDK_ANIMATION_ITER (gst_gdk_animation_iter_get_type ())
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#define GST_GDK_ANIMATION_ITER(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GST_TYPE_GDK_ANIMATION_ITER, GstGdkAnimationIter))
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#define GST_IS_GDK_ANIMATION_ITER(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GST_TYPE_GDK_ANIMATION_ITER))
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#define GST_GDK_ANIMATION_ITER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_GDK_ANIMATION_ITER, GstGdkAnimationIterClass))
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#define GST_IS_GDK_ANIMATION_ITER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_GDK_ANIMATION_ITER))
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#define GST_GDK_ANIMATION_ITER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_GDK_ANIMATION_ITER, GstGdkAnimationIterClass))
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struct _GstGdkAnimationIter {
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GdkPixbufAnimationIter parent;
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/* our animation */
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GstGdkAnimation * ani;
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/* start timeval */
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GTimeVal start;
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/* timestamp of last buffer */
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GstClockTime last_timestamp;
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/* pipeline we're using */
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GstElement * pipeline;
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gboolean eos;
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gboolean just_seeked;
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/* current image and the buffers containing the data */
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GdkPixbuf * pixbuf;
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GQueue * buffers;
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};
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struct _GstGdkAnimationIterClass {
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GdkPixbufAnimationIterClass parent_class;
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};
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GType gst_gdk_animation_iter_get_type (void) G_GNUC_CONST;
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G_END_DECLS
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#endif /* __GST_GDK_ANIMATION_H__ */
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