Wed, 27 Apr 2016 09:19:58 +0200
media: don't keep last sample reference on sinks
Holding a reference to a GstBuffer somewhere in a pipeline for possibly
indefinite period may cause trouble when the buffer has been allocated
by a 3rd party library or when it points directly into memory region of
a hardware device.
A specific example is V4L2 source element, which won't allow webcam
image resolution be reconfigured unless all previously allocated buffers
have been freed.
Backport of Pidgin 3 commit 13807c514810.
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- * gtksourceiter.h * * Pidgin is the legal property of its developers, whose names are too numerous * to list here. Please refer to the COPYRIGHT file distributed with this * source distribution. * * The following copyright notice applies to this file: * * Copyright (C) 2000 - 2005 Paolo Maggi * Copyright (C) 2002, 2003 Jeroen Zwartepoorte * * This program 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 program 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 program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301, USA. */ #ifndef _PIDGINSOURCEITER_H_ #define _PIDGINSOURCEITER_H_ #include <gtk/gtk.h> G_BEGIN_DECLS typedef enum { GTK_SOURCE_SEARCH_VISIBLE_ONLY = 1 << 0, GTK_SOURCE_SEARCH_TEXT_ONLY = 1 << 1, GTK_SOURCE_SEARCH_CASE_INSENSITIVE = 1 << 2 /* Possible future plans: SEARCH_REGEXP */ } GtkSourceSearchFlags; gboolean gtk_source_iter_forward_search (const GtkTextIter *iter, const gchar *str, GtkSourceSearchFlags flags, GtkTextIter *match_start, GtkTextIter *match_end, const GtkTextIter *limit); gboolean gtk_source_iter_backward_search (const GtkTextIter *iter, const gchar *str, GtkSourceSearchFlags flags, GtkTextIter *match_start, GtkTextIter *match_end, const GtkTextIter *limit); gboolean gtk_source_iter_find_matching_bracket (GtkTextIter *iter); G_END_DECLS #endif /* _PIDGINSOURCEITER_H_ */