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a79c7f9fa6
VA drivers may have a faster means to transfer user buffers to GPU buffers than using memcpy(). In particular, on Intel Gen graphics, we can use pwrite(). This provides for faster upload of bitstream and can help higher bitrates. vaapi_create_buffer() helper function was also updated to allow for un-mapped buffers and pre-initialized data for buffers.
83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
/*
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* gstvaapiutils.h - VA-API utilities
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*
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* Copyright (C) 2010-2011 Splitted-Desktop Systems
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* Copyright (C) 2011-2012 Intel Corporation
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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_UTILS_H
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#define GST_VAAPI_UTILS_H
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#include "config.h"
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#include <glib/gtypes.h>
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#ifdef GST_VAAPI_USE_OLD_VAAPI_0_29
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# include <va.h>
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#else
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# include <va/va.h>
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#endif
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/** Check VA status for success or print out an error */
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gboolean
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vaapi_check_status(VAStatus status, const char *msg)
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attribute_hidden;
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/** Maps VA buffer */
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void *
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vaapi_map_buffer(VADisplay dpy, VABufferID buf_id)
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attribute_hidden;
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/** Unmaps VA buffer */
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void
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vaapi_unmap_buffer(VADisplay dpy, VABufferID buf_id, void **pbuf)
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attribute_hidden;
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/** Creates and maps VA buffer */
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gboolean
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vaapi_create_buffer(
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VADisplay dpy,
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VAContextID ctx,
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int type,
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unsigned int size,
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gconstpointer data,
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VABufferID *buf_id,
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gpointer *mapped_data
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) attribute_hidden;
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/** Destroy VA buffer */
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void
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vaapi_destroy_buffer(VADisplay dpy, VABufferID *buf_id)
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attribute_hidden;
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/** Return a string representation of a VAProfile */
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const char *string_of_VAProfile(VAProfile profile)
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attribute_hidden;
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/** Return a string representation of a VAEntrypoint */
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const char *string_of_VAEntrypoint(VAEntrypoint entrypoint)
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attribute_hidden;
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guint
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from_GstVaapiSurfaceRenderFlags(guint flags)
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attribute_hidden;
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guint
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to_GstVaapiSurfaceStatus(guint va_flags)
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attribute_hidden;
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#endif /* GST_VAAPI_UTILS_H */
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