gstreamer/ext/resindvd/rsnpushsrc.c

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/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000,2005 Wim Taymans <wim@fluendo.com>
*
* gstpushsrc.c:
*
* 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.
*/
/*
*
* This is a temporary copy of GstBaseSrc/GstPushSrc for the resin
* DVD components, to work around a deadlock with source elements that
* send seeks to themselves.
*
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdlib.h>
#include <string.h>
#include "rsnpushsrc.h"
#include <gst/gstmarshal.h>
GST_DEBUG_CATEGORY_STATIC (rsn_push_src_debug);
#define GST_CAT_DEFAULT rsn_push_src_debug
#define _do_init(type) \
GST_DEBUG_CATEGORY_INIT (rsn_push_src_debug, "pushsrc", 0, \
"pushsrc element");
GST_BOILERPLATE_FULL (RsnPushSrc, rsn_push_src, RsnBaseSrc, RSN_TYPE_BASE_SRC,
_do_init);
static gboolean rsn_push_src_check_get_range (RsnBaseSrc * src);
static GstFlowReturn rsn_push_src_create (RsnBaseSrc * bsrc, guint64 offset,
guint length, GstBuffer ** ret);
static void
rsn_push_src_base_init (gpointer g_class)
{
/* nop */
}
static void
rsn_push_src_class_init (RsnPushSrcClass * klass)
{
RsnBaseSrcClass *gstbasesrc_class = (RsnBaseSrcClass *) klass;
gstbasesrc_class->create = GST_DEBUG_FUNCPTR (rsn_push_src_create);
gstbasesrc_class->check_get_range =
GST_DEBUG_FUNCPTR (rsn_push_src_check_get_range);
}
static void
rsn_push_src_init (RsnPushSrc * pushsrc, RsnPushSrcClass * klass)
{
/* nop */
}
static gboolean
rsn_push_src_check_get_range (RsnBaseSrc * src)
{
/* a pushsrc can by default never operate in pull mode override
* if you want something different. */
return FALSE;
}
static GstFlowReturn
rsn_push_src_create (RsnBaseSrc * bsrc, guint64 offset, guint length,
GstBuffer ** ret)
{
GstFlowReturn fret;
RsnPushSrc *src;
RsnPushSrcClass *pclass;
src = GST_PUSH_SRC (bsrc);
pclass = GST_PUSH_SRC_GET_CLASS (src);
if (pclass->create)
fret = pclass->create (src, ret);
else
fret = GST_FLOW_ERROR;
return fret;
}