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0968ce468d
If a GstVaapiDisplay is not found in the GStreamer context sharing,
then VAAPI elements look for a local GstGLContext in gst context
sharing mechanism ('gst.gl.local.context').
If this GstGLContext not found either then, only the VAAPI decoders
and the VAAPI post-processor, will try to instantiate a new
GstGLContext.
If a valid GstGLContext is received, then a new GstVaapiDisplay will
be instantiated with the platform, API and windowing specified by the
instantiated GstGLContext.
Original-Patch-By: Matt Fischer <matt.fischer@garmin.com>
https://bugzilla.gnome.org/show_bug.cgi?id=777409
251 lines
7.7 KiB
C
251 lines
7.7 KiB
C
/*
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* gstvaapipluginbase.h - Base GStreamer VA-API Plugin element
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*
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* Copyright (C) 2010-2011 Splitted-Desktop Systems
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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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*
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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 Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1
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* 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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* 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
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*/
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#ifndef GST_VAAPI_PLUGIN_BASE_H
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#define GST_VAAPI_PLUGIN_BASE_H
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#include <gst/base/gstbasetransform.h>
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#include <gst/video/gstvideodecoder.h>
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#include <gst/video/gstvideoencoder.h>
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#include <gst/video/gstvideosink.h>
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#include <gst/vaapi/gstvaapidisplay.h>
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#if USE_GST_GL_HELPERS
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# include <gst/gl/gstglcontext.h>
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#endif
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G_BEGIN_DECLS
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typedef struct _GstVaapiPluginBase GstVaapiPluginBase;
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typedef struct _GstVaapiPluginBaseClass GstVaapiPluginBaseClass;
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#define GST_VAAPI_PLUGIN_BASE(plugin) \
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((GstVaapiPluginBase *)(plugin))
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#define GST_VAAPI_PLUGIN_BASE_CLASS(plugin) \
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((GstVaapiPluginBaseClass *)(plugin))
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#define GST_VAAPI_PLUGIN_BASE_GET_CLASS(plugin) \
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GST_VAAPI_PLUGIN_BASE_CLASS(GST_ELEMENT_GET_CLASS( \
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GST_VAAPI_PLUGIN_BASE_ELEMENT(plugin)))
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#define GST_VAAPI_PLUGIN_BASE_PARENT(plugin) \
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(&GST_VAAPI_PLUGIN_BASE(plugin)->parent_instance)
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#define GST_VAAPI_PLUGIN_BASE_PARENT_CLASS(plugin) \
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(&GST_VAAPI_PLUGIN_BASE_CLASS(plugin)->parent_class)
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#define GST_VAAPI_PLUGIN_BASE_ELEMENT(plugin) \
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(&GST_VAAPI_PLUGIN_BASE_PARENT(plugin)->element)
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#define GST_VAAPI_PLUGIN_BASE_ELEMENT_CLASS(plugin) \
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(&GST_VAAPI_PLUGIN_BASE_PARENT_CLASS(plugin)->element)
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#define GST_VAAPI_PLUGIN_BASE_DECODER(plugin) \
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(&GST_VAAPI_PLUGIN_BASE_PARENT(plugin)->decoder)
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#define GST_VAAPI_PLUGIN_BASE_DECODER_CLASS(plugin) \
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(&GST_VAAPI_PLUGIN_BASE_PARENT_CLASS(plugin)->decoder)
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#define GST_VAAPI_PLUGIN_BASE_ENCODER(plugin) \
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(&GST_VAAPI_PLUGIN_BASE_PARENT(plugin)->encoder)
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#define GST_VAAPI_PLUGIN_BASE_ENCODER_CLASS(plugin) \
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(&GST_VAAPI_PLUGIN_BASE_PARENT_CLASS(plugin)->encoder)
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#define GST_VAAPI_PLUGIN_BASE_TRANSFORM(plugin) \
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(&GST_VAAPI_PLUGIN_BASE_PARENT(plugin)->transform)
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#define GST_VAAPI_PLUGIN_BASE_TRANSFORM_CLASS(plugin) \
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(&GST_VAAPI_PLUGIN_BASE_PARENT_CLASS(plugin)->transform)
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#define GST_VAAPI_PLUGIN_BASE_SINK(plugin) \
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(&GST_VAAPI_PLUGIN_BASE_PARENT(plugin)->sink)
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#define GST_VAAPI_PLUGIN_BASE_SINK_CLASS(plugin) \
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(&GST_VAAPI_PLUGIN_BASE_PARENT_CLASS(plugin)->sink)
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#define GST_VAAPI_PLUGIN_BASE_INIT_INTERFACES \
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gst_vaapi_plugin_base_init_interfaces(g_define_type_id);
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#define GST_VAAPI_PLUGIN_BASE_SINK_PAD(plugin) \
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(GST_VAAPI_PLUGIN_BASE(plugin)->sinkpad)
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#define GST_VAAPI_PLUGIN_BASE_SINK_PAD_CAPS(plugin) \
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(GST_VAAPI_PLUGIN_BASE(plugin)->sinkpad_caps)
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#define GST_VAAPI_PLUGIN_BASE_SINK_PAD_INFO(plugin) \
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(&GST_VAAPI_PLUGIN_BASE(plugin)->sinkpad_info)
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#define GST_VAAPI_PLUGIN_BASE_SRC_PAD(plugin) \
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(GST_VAAPI_PLUGIN_BASE(plugin)->srcpad)
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#define GST_VAAPI_PLUGIN_BASE_SRC_PAD_CAPS(plugin) \
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(GST_VAAPI_PLUGIN_BASE(plugin)->srcpad_caps)
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#define GST_VAAPI_PLUGIN_BASE_SRC_PAD_INFO(plugin) \
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(&GST_VAAPI_PLUGIN_BASE(plugin)->srcpad_info)
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#define GST_VAAPI_PLUGIN_BASE_DISPLAY(plugin) \
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(GST_VAAPI_PLUGIN_BASE(plugin)->display)
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#define GST_VAAPI_PLUGIN_BASE_DISPLAY_TYPE(plugin) \
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(GST_VAAPI_PLUGIN_BASE(plugin)->display_type)
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#define GST_VAAPI_PLUGIN_BASE_DISPLAY_NAME(plugin) \
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(GST_VAAPI_PLUGIN_BASE(plugin)->display_name)
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#define GST_VAAPI_PLUGIN_BASE_DISPLAY_REPLACE(plugin, new_display) \
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(gst_vaapi_display_replace(&GST_VAAPI_PLUGIN_BASE_DISPLAY(plugin), \
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(new_display)))
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#define GST_VAAPI_PLUGIN_BASE_DEFINE_SET_CONTEXT(parent_class) \
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static void \
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gst_vaapi_base_set_context (GstElement * element, GstContext * context) \
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{ \
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GstVaapiPluginBase *const plugin = GST_VAAPI_PLUGIN_BASE (element); \
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\
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gst_vaapi_plugin_base_set_context (plugin, context); \
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GST_ELEMENT_CLASS (parent_class)->set_context (element, context); \
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}
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struct _GstVaapiPluginBase
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{
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/*< private >*/
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union
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{
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GstElement element;
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GstVideoDecoder decoder;
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GstVideoEncoder encoder;
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GstBaseTransform transform;
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GstVideoSink sink;
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} parent_instance;
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GstDebugCategory *debug_category;
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GstPad *sinkpad;
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GstCaps *sinkpad_caps;
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gboolean sinkpad_caps_is_raw;
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GstVideoInfo sinkpad_info;
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GstBufferPool *sinkpad_buffer_pool;
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guint sinkpad_buffer_size;
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GstPad *srcpad;
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GstCaps *srcpad_caps;
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GstVideoInfo srcpad_info;
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GstBufferPool *srcpad_buffer_pool;
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GstVaapiDisplay *display;
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GstVaapiDisplayType display_type;
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GstVaapiDisplayType display_type_req;
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gchar *display_name;
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GstObject *gl_context;
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GstObject *gl_display;
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GstObject *gl_other_context;
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GstCaps *allowed_raw_caps;
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GstAllocator *sinkpad_allocator;
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GstAllocator *srcpad_allocator;
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};
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struct _GstVaapiPluginBaseClass
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{
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/*< private >*/
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union
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{
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GstElementClass element;
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GstVideoDecoderClass decoder;
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GstVideoEncoderClass encoder;
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GstBaseTransformClass transform;
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GstVideoSinkClass sink;
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} parent_class;
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gboolean (*has_interface) (GstVaapiPluginBase * plugin, GType type);
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void (*display_changed) (GstVaapiPluginBase * plugin);
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};
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G_GNUC_INTERNAL
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void
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gst_vaapi_plugin_base_init_interfaces (GType type);
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G_GNUC_INTERNAL
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void
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gst_vaapi_plugin_base_class_init (GstVaapiPluginBaseClass * klass);
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G_GNUC_INTERNAL
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void
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gst_vaapi_plugin_base_init (GstVaapiPluginBase * plugin,
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GstDebugCategory * debug_category);
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G_GNUC_INTERNAL
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void
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gst_vaapi_plugin_base_finalize (GstVaapiPluginBase * plugin);
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G_GNUC_INTERNAL
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gboolean
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gst_vaapi_plugin_base_open (GstVaapiPluginBase * plugin);
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G_GNUC_INTERNAL
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void
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gst_vaapi_plugin_base_close (GstVaapiPluginBase * plugin);
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G_GNUC_INTERNAL
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gboolean
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gst_vaapi_plugin_base_has_display_type (GstVaapiPluginBase * plugin,
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GstVaapiDisplayType display_type_req);
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G_GNUC_INTERNAL
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void
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gst_vaapi_plugin_base_set_display_type (GstVaapiPluginBase * plugin,
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GstVaapiDisplayType display_type);
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G_GNUC_INTERNAL
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void
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gst_vaapi_plugin_base_set_display_name (GstVaapiPluginBase * plugin,
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const gchar * display_name);
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G_GNUC_INTERNAL
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gboolean
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gst_vaapi_plugin_base_ensure_display (GstVaapiPluginBase * plugin);
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G_GNUC_INTERNAL
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gboolean
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gst_vaapi_plugin_base_set_caps (GstVaapiPluginBase * plugin, GstCaps * incaps,
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GstCaps * outcaps);
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G_GNUC_INTERNAL
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gboolean
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gst_vaapi_plugin_base_propose_allocation (GstVaapiPluginBase * plugin,
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GstQuery * query);
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G_GNUC_INTERNAL
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gboolean
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gst_vaapi_plugin_base_decide_allocation (GstVaapiPluginBase * plugin,
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GstQuery * query);
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G_GNUC_INTERNAL
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GstFlowReturn
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gst_vaapi_plugin_base_get_input_buffer (GstVaapiPluginBase * plugin,
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GstBuffer * inbuf, GstBuffer ** outbuf_ptr);
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G_GNUC_INTERNAL
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void
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gst_vaapi_plugin_base_set_context (GstVaapiPluginBase * plugin,
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GstContext * context);
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G_GNUC_INTERNAL
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void
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gst_vaapi_plugin_base_set_gl_context (GstVaapiPluginBase * plugin,
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GstObject * object);
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G_GNUC_INTERNAL
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GstObject *
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gst_vaapi_plugin_base_create_gl_context (GstVaapiPluginBase * plugin);
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G_GNUC_INTERNAL
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GstCaps *
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gst_vaapi_plugin_base_get_allowed_raw_caps (GstVaapiPluginBase * plugin);
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G_END_DECLS
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#endif /* GST_VAAPI_PLUGIN_BASE_H */
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