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16ac778f31
Original commit message from CVS: * plugins/elements/gstfilesrc.c: (gst_file_src_class_init), (gst_file_src_init), (gst_file_src_set_property), (gst_file_src_get_property), (gst_file_src_map_region): * plugins/elements/gstfilesrc.h: Add "sequential" property, off by default, to use madvise and hint to the kernel that sequential access is desired. Touch all retrieved pages by default to ensure they are pulled into memory. (Closes #345720)
84 lines
2.6 KiB
C
84 lines
2.6 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wtay@chello.be>
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* 2005 Wim Taymans <wim@fluendo.com>
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*
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* gstfilesrc.h:
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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_FILE_SRC_H__
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#define __GST_FILE_SRC_H__
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#include <sys/types.h>
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#include <gst/gst.h>
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#include <gst/base/gstbasesrc.h>
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G_BEGIN_DECLS
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#define GST_TYPE_FILE_SRC \
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(gst_file_src_get_type())
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#define GST_FILE_SRC(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_FILE_SRC,GstFileSrc))
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#define GST_FILE_SRC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_FILE_SRC,GstFileSrcClass))
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#define GST_IS_FILE_SRC(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_FILE_SRC))
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#define GST_IS_FILE_SRC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_FILE_SRC))
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typedef struct _GstFileSrc GstFileSrc;
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typedef struct _GstFileSrcClass GstFileSrcClass;
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/**
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* GstFileSrc:
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*
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* Opaque #GstFileSrc structure.
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*/
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struct _GstFileSrc {
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GstBaseSrc element;
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/*< private >*/
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guint pagesize; /* system page size */
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gchar *filename; /* filename */
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gchar *uri; /* caching the URI */
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gint fd; /* open file descriptor */
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guint64 read_position; /* position of fd */
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gboolean touch; /* whether to touch every page */
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gboolean using_mmap; /* whether we opened it with mmap */
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gboolean sequential; /* Whether to madvise (MADV_SEQUENTIAL)
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for mmap pages */
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gboolean seekable; /* whether the file is seekable */
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gboolean is_regular; /* whether it's a (symlink to a)
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regular file */
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GstBuffer *mapbuf;
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size_t mapsize;
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gboolean use_mmap;
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};
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struct _GstFileSrcClass {
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GstBaseSrcClass parent_class;
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};
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GType gst_file_src_get_type (void);
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G_END_DECLS
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#endif /* __GST_FILE_SRC_H__ */
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