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gstreamer/gst-libs/gst/vaapi/gstvaapidisplaycache.h

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display: implement a VA display cache.
2012-01-12 11:46:34 +00:00
/*
* gstvaapidisplaycache.h - VA display cache
*
legal: update copyright notice dates.
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* Copyright (C) 2012-2013 Intel Corporation
legal: add per-file authorship information. Credit original authors on a per-file basis as we cannot expect people to know all country-specific rules, or bother browsing through the git history.
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* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
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*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
#ifndef GSTVAAPIDISPLAYCACHE_H
#define GSTVAAPIDISPLAYCACHE_H
libs: check that private headers remain private. Make sure that libgstvaapi private headers remain internally used to build libgstvaapi libraries only. All header dependencies were reviewed and checks for IN_LIBGSTVAAPI definition were added accordingly. Also rename GST_VAAPI_CORE definition to IN_LIBGSTVAAPI_CORE to keep consistency.
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#include "libgstvaapi_priv_check.h"
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#include <gst/vaapi/gstvaapidisplay.h>
display: make cache maintenance really MT-safe. Make sure to initialize one GstVaapiDisplay at a time, even in threaded environments. This makes sure the display cache is also consistent during the whole display creation process. In the former implementation, there were risks that display cache got updated in another thread.
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#include "gstvaapiminiobject.h"
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display: re-indent all GstVaapiDisplay related source code.
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typedef struct _GstVaapiDisplayCache GstVaapiDisplayCache;
display: implement a VA display cache.
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libs: drop some public APIs. Don't expose GstVaapiContext APIs and make them totally private to libgstvaapi core library. That API would also tend to disappear in a future revision. Likewise, don't expose GstVaapiDisplayCache API but keep symbols visible so that the various render backends could share a common display cache implementation in libgstvaapi. Try to clean-up the documentation from any stale entry too.
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G_GNUC_INTERNAL
display: implement a VA display cache.
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GstVaapiDisplayCache *
display: re-indent all GstVaapiDisplay related source code.
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gst_vaapi_display_cache_new (void);
display: implement a VA display cache.
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display: make cache maintenance really MT-safe. Make sure to initialize one GstVaapiDisplay at a time, even in threaded environments. This makes sure the display cache is also consistent during the whole display creation process. In the former implementation, there were risks that display cache got updated in another thread.
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#define gst_vaapi_display_cache_ref(cache) \
((GstVaapiDisplayCache *) gst_vaapi_mini_object_ref ( \
GST_VAAPI_MINI_OBJECT (cache)))
#define gst_vaapi_display_cache_unref(cache) \
gst_vaapi_mini_object_unref (GST_VAAPI_MINI_OBJECT (cache))
#define gst_vaapi_display_cache_replace(old_cache_ptr, new_cache) \
gst_vaapi_mini_object_replace ((GstVaapiMiniObject **) (old_cache_ptr), \
GST_VAAPI_MINI_OBJECT (new_cache))
display: implement a VA display cache.
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display: use a recursive mutex for the display cache. Use a recursive mutex for the display cache so that a 3rdparty display object could be initialized during the initialization of the parent display.
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G_GNUC_INTERNAL
void
gst_vaapi_display_cache_lock (GstVaapiDisplayCache * cache);
G_GNUC_INTERNAL
void
gst_vaapi_display_cache_unlock (GstVaapiDisplayCache * cache);
libs: drop some public APIs. Don't expose GstVaapiContext APIs and make them totally private to libgstvaapi core library. That API would also tend to disappear in a future revision. Likewise, don't expose GstVaapiDisplayCache API but keep symbols visible so that the various render backends could share a common display cache implementation in libgstvaapi. Try to clean-up the documentation from any stale entry too.
2013-07-26 11:57:35 +00:00
G_GNUC_INTERNAL
display: make cache maintenance really MT-safe. Make sure to initialize one GstVaapiDisplay at a time, even in threaded environments. This makes sure the display cache is also consistent during the whole display creation process. In the former implementation, there were risks that display cache got updated in another thread.
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gboolean
gst_vaapi_display_cache_is_empty (GstVaapiDisplayCache * cache);
display: implement a VA display cache.
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libs: drop some public APIs. Don't expose GstVaapiContext APIs and make them totally private to libgstvaapi core library. That API would also tend to disappear in a future revision. Likewise, don't expose GstVaapiDisplayCache API but keep symbols visible so that the various render backends could share a common display cache implementation in libgstvaapi. Try to clean-up the documentation from any stale entry too.
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G_GNUC_INTERNAL
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gboolean
display: re-indent all GstVaapiDisplay related source code.
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gst_vaapi_display_cache_add (GstVaapiDisplayCache * cache,
GstVaapiDisplayInfo * info);
display: implement a VA display cache.
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libs: drop some public APIs. Don't expose GstVaapiContext APIs and make them totally private to libgstvaapi core library. That API would also tend to disappear in a future revision. Likewise, don't expose GstVaapiDisplayCache API but keep symbols visible so that the various render backends could share a common display cache implementation in libgstvaapi. Try to clean-up the documentation from any stale entry too.
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G_GNUC_INTERNAL
display: implement a VA display cache.
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void
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gst_vaapi_display_cache_remove (GstVaapiDisplayCache * cache,
GstVaapiDisplay * display);
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const GstVaapiDisplayInfo *
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gst_vaapi_display_cache_lookup (GstVaapiDisplayCache
* cache, GstVaapiDisplay * display);
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display: rework display cache API. Simplify display cache API, while making it more flexible. We can now create custom lookup functions with gst_vaapi_display_cache_lookup_custom().
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const GstVaapiDisplayInfo *
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gst_vaapi_display_cache_lookup_custom (GstVaapiDisplayCache * cache,
GCompareFunc func, gconstpointer data, guint display_types);
display: rework display cache API. Simplify display cache API, while making it more flexible. We can now create custom lookup functions with gst_vaapi_display_cache_lookup_custom().
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display: implement a VA display cache.
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const GstVaapiDisplayInfo *
display: re-indent all GstVaapiDisplay related source code.
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gst_vaapi_display_cache_lookup_by_va_display (GstVaapiDisplayCache * cache,
VADisplay va_display);
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const GstVaapiDisplayInfo *
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gst_vaapi_display_cache_lookup_by_native_display (GstVaapiDisplayCache *
cache, gpointer native_display, guint display_types);
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const GstVaapiDisplayInfo *
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gst_vaapi_display_cache_lookup_by_name (GstVaapiDisplayCache * cache,
const gchar * display_name, guint display_types);
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#endif /* GSTVAAPIDISPLAYCACHE_H */
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