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85664b5af6
We now can use the gst va lib's display to create our MSDK context, and use its helper functions to simplify our code. The improved logic is like this: 1. Every MSDK element should use gst_msdk_context_find() to find a MSDK context from neighbour. If valid, reuse it. 2. Use gst_msdk_ensure_new_context(). It will first query neighbours about the GstVaDisplay, if found(e.g. some VA element is connected), use gst_msdk_context_from_external_display() to create a MSDK context. 3. Then, creating the MSDK context from scratch. It creates both the display and MSDK context. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1087>
61 lines
2.4 KiB
C
61 lines
2.4 KiB
C
/* GStreamer Intel MSDK plugin
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* Copyright (c) 2018, Intel Corporation
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* Copyright (c) 2018, Igalia S.L.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGDECE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef GST_MSDK_CONTEXT_UTIL_H
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#define GST_MSDK_CONTEXT_UTIL_H
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#include "msdk.h"
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#include "gstmsdkcontext.h"
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#ifndef _WIN32
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#include <va/va.h>
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#endif
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#define GST_MSDK_CONTEXT_TYPE_NAME "gst.msdk.Context"
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G_BEGIN_DECLS
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gboolean
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gst_msdk_context_find (GstElement * element, GstMsdkContext ** context_ptr);
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gboolean
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gst_msdk_ensure_new_context (GstElement * element, gboolean hardware, GstMsdkContextJobType job, GstMsdkContext ** context_ptr);
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gboolean
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gst_msdk_context_get_context (GstContext * context, GstMsdkContext ** msdk_context);
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gboolean
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gst_msdk_context_from_external_display (GstContext * context, gboolean hardware,
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GstMsdkContextJobType job_type, GstMsdkContext ** msdk_context);
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G_END_DECLS
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#endif /* GST_MSDK_CONTEXT_UTIL_H */
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