gstreamer/subprojects/gst-plugins-bad/sys/qsv/gstqsvutils.h
Seungha Yang 64ed6075b7 qsv: Introduce H.264 Intel Quick Sync Video Encoder
A new implementation of Intel Quick Sync Video plugin.
This plugin supports both Windows and Linux but optimization for
VA/DMABuf is not implemented yet.

This new plugin has some notable differences compared with existing
MSDK plugin.

* Encoder will expose formats which can be natively supported
without internal conversion. This will make encoder
control/negotiation flow much simpler and cleaner than
that of MSDK plugin.

* This plugin includes QSV specific library loading helper,
called dispatcher, with QSV SDK headers as a part of this plugin.
So, there will be no more SDK version dependent #ifdef in the code
and also there will be no more build-time MSDK/oneVPL SDK
dependency.

* Memory allocator interop between GStreamer and QSV is re-designed
and decoupled. Instead of implementing QSV specific allocator/bufferpool,
this plugin will make use of generic GStreamer memory
allocator/bufferpool (e.g., GstD3D11Allocator and GstD3D11BufferPool).
Specifically, GstQsvAllocator object will help interop between
GstMemory and mfxFrameAllocator memory abstraction layers.

Note that because of the design decision, VA/DMABuf support is not made
as a part of this initial commit. We can add the optimization for Linux
later once GstVA library exposes allocator/bufferpool implementation as
an API like GstD3D11.

* Initial encoder implementation supports interop with GstD3D11
infrastructure, including zero-copy encoding with upstream D3D11 element.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1408>
2022-02-08 10:05:35 +00:00

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1.6 KiB
C

/* GStreamer
* Copyright (C) 2021 Seungha Yang <seungha@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#pragma once
#include <gst/gst.h>
#include <mfx.h>
G_BEGIN_DECLS
mfxLoader gst_qsv_get_loader (void);
void gst_qsv_deinit (void);
GList * gst_qsv_get_platform_devices (void);
const gchar * gst_qsv_status_to_string (mfxStatus status);
/* helper macro for debugging log */
#define QSV_STATUS_ARGS(status) \
status, gst_qsv_status_to_string (status)
static inline GstClockTime
gst_qsv_timestamp_to_gst (mfxU64 timestamp)
{
if (timestamp == (mfxU64) MFX_TIMESTAMP_UNKNOWN)
return GST_CLOCK_TIME_NONE;
return gst_util_uint64_scale (timestamp, GST_SECOND, 90000);
}
static inline mfxU64
gst_qsv_timestamp_from_gst (GstClockTime timestamp)
{
if (!GST_CLOCK_TIME_IS_VALID (timestamp))
return (mfxU64) MFX_TIMESTAMP_UNKNOWN;
return gst_util_uint64_scale (timestamp, 90000, GST_SECOND);
}
G_END_DECLS