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

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Add VA context abstraction.
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/*
* gstvaapicontext.h - VA context abstraction
*
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* Copyright (C) 2010-2011 Splitted-Desktop Systems
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@splitted-desktop.com>
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* Copyright (C) 2011-2013 Intel Corporation
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* Author: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
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*
Relicense gst-libs/ code to LGPL v2.1+.
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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.
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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
* Lesser General Public License for more details.
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*
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* 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
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*/
#ifndef GST_VAAPI_CONTEXT_H
#define GST_VAAPI_CONTEXT_H
#include <gst/vaapi/gstvaapiobject.h>
#include <gst/vaapi/gstvaapiprofile.h>
#include <gst/vaapi/gstvaapidisplay.h>
#include <gst/vaapi/gstvaapisurface.h>
context: make it possible to apply composition globally.
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#include <gst/video/video-overlay-composition.h>
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G_BEGIN_DECLS
libs: use GstVaapiObject for VA objects.
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#define GST_VAAPI_CONTEXT(obj) \
((GstVaapiContext *)(obj))
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typedef struct _GstVaapiContext GstVaapiContext;
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typedef struct _GstVaapiContextInfo GstVaapiContextInfo;
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/**
* GstVaapiContextInfo:
*
* Structure holding VA context info like encoded size, decoder
* profile and entry-point to use, and maximum number of reference
* frames reported by the bitstream.
libs: add support for rate-control to GstVaapiContext. Extend GstVaapiContextInfo structure to hold the desired rate control mode for encoding purposes. For decoding purposes, this field is not used and it is initialized to GST_VAAPI_RATECONTROL_NONE. Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
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*
* Note: @rc_mode is only valid for VA context used for encoding,
* i.e. if @entrypoint is set to @GST_VAAPI_ENTRYPOINT_SLICE_ENCODE.
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*/
struct _GstVaapiContextInfo {
GstVaapiProfile profile;
GstVaapiEntrypoint entrypoint;
libs: add support for rate-control to GstVaapiContext. Extend GstVaapiContextInfo structure to hold the desired rate control mode for encoding purposes. For decoding purposes, this field is not used and it is initialized to GST_VAAPI_RATECONTROL_NONE. Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
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GstVaapiRateControl rc_mode;
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guint width;
guint height;
guint ref_frames;
};
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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GstVaapiContext *
gst_vaapi_context_new(
GstVaapiDisplay *display,
GstVaapiProfile profile,
GstVaapiEntrypoint entrypoint,
guint width,
guint height
);
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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GstVaapiContext *
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gst_vaapi_context_new_full(GstVaapiDisplay *display,
const GstVaapiContextInfo *cip);
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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
gst_vaapi_context_reset(
GstVaapiContext *context,
GstVaapiProfile profile,
GstVaapiEntrypoint entrypoint,
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guint width,
guint height
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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
context: allow number of reference frames to be set. Make it possible to specify the maximum number of references to use within a single VA context. This helps reducing GPU memory allocations to the useful number of references to be used.
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gboolean
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gst_vaapi_context_reset_full(GstVaapiContext *context,
const GstVaapiContextInfo *new_cip);
context: allow number of reference frames to be set. Make it possible to specify the maximum number of references to use within a single VA context. This helps reducing GPU memory allocations to the useful number of references to be used.
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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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GstVaapiID
gst_vaapi_context_get_id(GstVaapiContext *context);
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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GstVaapiProfile
gst_vaapi_context_get_profile(GstVaapiContext *context);
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
gst_vaapi_context_set_profile(GstVaapiContext *context, GstVaapiProfile profile);
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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GstVaapiEntrypoint
gst_vaapi_context_get_entrypoint(GstVaapiContext *context);
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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void
gst_vaapi_context_get_size(
GstVaapiContext *context,
guint *pwidth,
guint *pheight
);
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
decoder: simplify acquisition/release of spare surface. Introduce gst_vaapi_surface_proxy_new_from_pool() to allocate a new surface proxy from the context surface pool. This change also makes sure to retain the parent surface pool in the proxy. Besides, it was also totally useless to attach/detach parent context to VA surface each time we acquire/release it. Since the whole context owns all associated VA surfaces, we can mark this as such only once and for all.
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GstVaapiSurfaceProxy *
gst_vaapi_context_get_surface_proxy(GstVaapiContext *context);
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
Check for out-of-free-surfaces condition.
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guint
gst_vaapi_context_get_surface_count(GstVaapiContext *context);
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
gst_vaapi_context_apply_composition(
GstVaapiContext *context,
GstVideoOverlayComposition *composition
);
encoder: h264: only submit packed headers when required. Make sure to submit the packed headers only if the underlying VA driver requires those. Currently, only handle packed sequence and picture headers. https://bugzilla.gnome.org/show_bug.cgi?id=722737
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G_GNUC_INTERNAL
gboolean
gst_vaapi_context_get_attribute(GstVaapiContext *context,
VAConfigAttribType type, guint *out_value_ptr);
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G_END_DECLS
#endif /* GST_VAAPI_CONTEXT_H */
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